JP4521159B2 - Vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner.
[0002]
[Prior art]
General vacuum cleaners guide the dust-containing air sucked from the suction port to the main body of the vacuum cleaner, remove the dust through the dust collecting part in the main body of the vacuum cleaner, and exhaust the air purified by the dust removal outside the main body of the vacuum cleaner. It is a configuration. The dust collecting unit is configured to capture and remove dust by filtration using a paper filter, or to capture and remove dust by centrifugal separation using a cyclone separation cylinder.
[0003]
A vacuum cleaner provided with a cyclone separation type dust collecting portion is described in Patent Document 1. The dust collecting part in this vacuum cleaner is configured to capture and remove dust by centrifugation using a single cyclone separating cylinder.
[0004]
In addition, as a cyclone separating type dust collecting unit in a vacuum cleaner, the dust separating apparatus described in Patent Document 2 is configured with a double structure of an outer separating cylinder and an inner separating cylinder in the outer separating cylinder. Proposes to remove coarse dust by centrifuging and removing fine dust by centrifuging in the inner separation cylinder.
[0005]
[Patent Document 1]
JP 2001-29288 A
[Patent Document 2]
JP-T-10-511880
[0006]
[Problems to be solved by the invention]
It is important that the vacuum cleaner used in a general household is small and easy to handle, and it is necessary to reduce the size of the dust collecting unit and simplify the operation of discarding the captured dust.
[0007]
The dust collection part that captures dust with one cyclone separation cylinder captures both coarse dust and fine dust together. Therefore, when discarding the captured dust, the fine dust is easily scattered and the dust disposal operation is troublesome. . Moreover, if it is going to improve the dust capture | acquisition (dust collection = dust removal) performance, a cyclone separation cylinder will become long and will enlarge.
[0008]
The cyclone separation type dust separation device (dust collecting part) having an inner / outer double separation cylinder structure is a configuration in which the outer separation cylinder and the inner separation cylinder are integrally combined. Have difficulty. In general household use, a large amount of coarse dust is trapped and the frequency of operation for discarding the coarse dust increases, but the dust collecting part of the inner and outer double separation cylinder structure captures the coarse dust. Only the outer separation cylinder cannot be taken out and only the coarse dust cannot be discarded.
[0009]
One object of the present invention is to propose a vacuum cleaner having a cyclone-separated dust collecting portion that is small and easy to handle.
[0010]
Another object of the present invention is to propose a vacuum cleaner having a cyclone separation type dust collecting part which is small and has high dust capturing (dust collecting) performance.
[0011]
Still another object of the present invention is to propose an electric vacuum cleaner equipped with a cyclone separation type dust collecting part that can reliably hold captured fine dust so as not to be scattered.
[0012]
[Means for Solving the Problems]
The present invention reaches the dust collecting case placed on the side of the cyclone separation cylinder at the lower part of the cyclone separation cylinder that removes dust-containing air by centrifugation at the lower part of the cyclone separation cylinder and the inlet pipe into which the dusty air flows. In a vacuum cleaner provided with a communication port, an inner cylinder is provided inside the cyclone separation cylinder, the inner cylinder includes a cylinder portion, a partition wall spirally provided in the cylinder portion, and an upper end portion of the partition wall The inlet pipe extends from the position toward the lower side of the inner cylinder and End of And a guide wall that connects the tube The guide wall is provided on one side of the inlet pipe. It is characterized by that.
[0013]
Also, The height of the guide wall is higher than the height of the entrance pipe It is characterized by that.
[0014]
Also, The inner cylinder is detachable from the cyclone separating cylinder. It is characterized by.
[0017]
DETAILED DESCRIPTION OF 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 an 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 the upper cover of the cleaner body is opened. FIG. 4 is a perspective view showing a state where the dust collecting case of the cleaner body is removed. FIG. 5 is a perspective view showing a state where the dust collecting 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 electric vacuum cleaner in this embodiment includes a vacuum cleaner body 1, a hose 2, a hand operation tube 3, an expansion joint tube 4, and a suction port 5, and the vacuum cleaner body 1 and the hand operation tube 3 are connected to each other. A hose 2 is used for connection, and a suction port 5 is connected to the local operation pipe 3 via an expansion joint pipe 4 for use.
[0019]
The vacuum cleaner body 1 incorporates an electric blower (described later), and sucks in dust from the intake flow by suctioning from the suction port 5 by the suction force of the electric blower. Then, the vacuum cleaner main body 1 is sucked through the hand control tube 3 and the hose 2, and dust is collected (collected) by a cyclone separation type dust collection unit (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 separating cylinder 104 and a dust collecting case 105 detachably mounted between the lower case 101 and the upper lid 102, and between the lower case 101 and the upper case 150. The second auxiliary filter 112, the electric blower 107, and the cord reel 110 are incorporated.
[0021]
As shown in FIG. 7, the vacuum cleaner main body 1 flows dust into the cyclone separation cylinder 104 from the inlet pipe 115 through the hose 2 and swirls it to separate the dust by centrifugal action. The dust is conveyed to the dust collecting case 105 through the communication port 117, and the exhaust from the cyclone separation cylinder 104 is exhausted through the inner cylinder 131 to the exhaust port 120 provided at the lower part of the cyclone separation cylinder 104. Part of the air flows into the dust collection case 105 and is captured by the first auxiliary filter 106. The exhaust 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 from the cyclone separation cylinder 104 also passes through the communication passage 145 from the exhaust port 120, flows out from the cyclone outlet 146, and is sucked into the electric blower 107 together with the exhaust from the dust collection case 105. Exhaust air from the electric blower 107 passes through the filter 108, partly through an exhaust passage (not shown), partly flows through the cord reel 110, cools them, and then releases them outside the apparatus.
[0022]
The lower case 101 includes a traveling wheel 208 and a guide wheel (not shown) for causing the cleaner body 1 to travel on the floor surface, and the cyclone separating cylinder 104 and the dust collecting case 105 are detachably arranged side by side. In addition, the second auxiliary filter 112 is installed side by side.
[0023]
The upper lid 102 is attached to the upper rear portion of the upper case 150 so as to be able to rotate. When the upper lid 102 is closed, the inlet pipe 115 of the cyclone separation cylinder 104 and the hose connection port 116 abut against each other in an airtight state. And the upper opening 118 of the dust collecting case 105 are in contact with each other in an airtight state, and the exhaust port 120 at the lower part of the cyclone separating cylinder 104 and the communication passage 145 provided at the lower part of the dust collecting case 105 are airtight. Abutting on the state, the cyclone section outlet 146 and the filter case 113 in which the second auxiliary filter 112 is housed are urged so as to abut on the airtight state. Although the axial direction of the cyclone separating cylinder 104 is oriented in the vertical direction, it may be inclined in the oblique direction instead of the vertical direction.
[0024]
The dust collecting case 105 can be taken out by holding the handle 123 at the top of the dust collecting case 105, 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]
Furthermore, when the inside of the cyclone separation cylinder 104 is dirty, the upper handle 125 can be held and lifted from the lower case 101, and the cyclone separation cylinder 104 can be disassembled and cleaned.
[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 curable coating treatment. For this reason, when dust flows into the cyclone separation cylinder 104, and the dust is centrifuged and flows into the dust collection case 105, dust is collected on the surface inside the cyclone separation cylinder 104 and the inner surface of the dust collection case. Even in the case of collision and rubbing, it is difficult for scratches to be made on the surface, making it difficult for dirt to adhere, and improving abrasion resistance and contamination resistance. For this reason, even when the outer cylinder 135 of the cyclone separation cylinder 104 and the dust collection case 105 are made of a transparent plastic material, the degree of dust accumulation can be visually confirmed.
[0027]
Further, the cyclone separating cylinder 104 and the dust collecting case 105 are molded using an antistatic resin agent, or dust is attached to the cyclone separating cylinder 104 and the dust collecting case 105 by applying an antistatic agent to the surface. The number of cleanings can be reduced.
[0028]
Next, with reference to FIG. 6, arrangement | positioning inside the vacuum cleaner main body 1 is demonstrated. FIG. 6 is a plan view of the 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 central axis of the cyclone separation cylinder 104 is shifted from the center in the width direction, and the inlet pipe 115 and the hose connection port 116 for allowing air to flow in a substantially tangential direction of the cyclone separation cylinder 104 are arranged in a straight line. Yes. The dust collection case 105 is installed on the opposite side of the width direction from the center axis of the cyclone separation cylinder 104. Similarly, the electric blower 107 is installed on the opposite side of the center axis of the cyclone separating cylinder 104 in the width direction, and a second auxiliary filter 112 is provided on the front surface thereof. The cord reel 110 is installed beside the electric blower 107, and the central axis of the cyclone separating cylinder 104 is installed in the same direction in the width direction.
[0029]
By arranging in this way, the length of the main body can be shortened, and a small size and light weight can be achieved. Further, since it is not necessary to provide a bend or the like at the inlet portion of the cyclone separation cylinder 104, an effect of reducing loss can be obtained.
[0030]
Here, the direction in which the dust centrifuged in the cyclone separation cylinder 104 flows out of the cyclone separation cylinder 104 through the communication port 117 is a turning direction in the cyclone separation cylinder 104 and a tangential direction of the cyclone separation cylinder 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 are opened and closed in the dust collection case 105. It can be arranged on the front side (hose connection port 116 side) of the vacuum cleaner main body 1 farthest from the auxiliary filter 106. Here, the dust centrifuged in the cyclone separation cylinder 104 is accumulated from the vicinity of the first auxiliary filter 106 that opens and closes, and the communication port 117 of the cyclone separation cylinder 104 and the dust collecting case 105 that communicates with the communication port 117. Since the particles sequentially accumulate on the upper opening 118 side, it is difficult for the dust to block the communication port 117 and the upper opening 118 until the dust collecting case 105 is filled with dust. That is, the volume of the dust collecting case 105 can be effectively used.
[0031]
Here, details of the cyclone separating cylinder 104 and the dust collecting 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 cross-sectional view taken along the line AA in FIG. 12 is a sectional view including the cyclone separating cylinder 104 and the communication port 117 of the dust collecting case 105, FIG. 13 is a side view of the dust collecting case 105 as viewed from the exhaust side, and FIG. 14 is a perspective view of the inner cylinder 131. It is.
[0032]
The outer cylinder 135 of the cyclone separation cylinder 104 is provided with an inlet pipe 115 as an air intake port below the center of the cyclone separation cylinder 104 in the central axial direction, and the cyclone separation cylinder 104 having a substantially cylindrical shape. It is installed so that air can enter in the direction of tangential line. A communication port 117 is provided above the center of the cyclone separation cylinder 104 to allow air to flow into the dust collecting case 105 together with dust. An inner cylinder 131 is provided at the lower part of the cyclone separation cylinder 104 and is connected to the lower exhaust port 120. The inner cylinder 131 includes a cylindrical part 134, a partition wall 132 wound spirally around the cylindrical part 134, and a guide wall 137 connecting the inlet pipe 115 and the cylindrical part 134. The cylindrical part 134 includes a net filter 133. A resin fiber net is formed integrally with the cylindrical portion 134 by insert molding. As shown in FIG. 10, the mesh filter 133 may be configured as a cylindrical portion on the side surface, or may be configured by combining the upper flat surface 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 from the inlet pipe 115, it can be prevented from directly hitting the net filter 133, and can be prevented from getting stuck and entangled. Further, even when sharp dust such as a needle flows from the inlet pipe 115, it does not directly hit the mesh filter 133, so that the mesh filter 133 is broken and dust can be prevented from flowing out.
[0033]
Further, since the mesh filter 133 receives a force inward of the inner cylinder 131, an inner cylinder rib 136 may be provided on the inner diameter side of the mesh filter. Here, when the antistatic treatment is applied to the mesh filter 133, dust adhering to the mesh filter 133 is easily separated and cleaning is easy.
[0034]
Further, an inlet pipe 115 as an air intake port is provided in the outer cylinder 135 of the cyclone separation cylinder 104 below the center of the cyclone separation cylinder 104 in the central axial direction. The hose connection port 116 that communicates with the cyclone separating cylinder 104 can also be disposed below the center of the length in the central axis direction. For this reason, since the said hose connection port part 116 can be arrange | positioned in the lower part of the cleaner body 1, when the said cleaner body 1 is drawn around by the hand operation tube 3 via the said hose 2, the said cleaner The main body 1 is not easily toppled and can be stably routed.
[0035]
Furthermore, since the hose connection port 116 can be disposed on the lower side of the cleaner body 1, it is not necessary to dispose the hose connection port 116 on the upper lid 102, and the dust collecting case 105 and the cyclone separating cylinder 104 are disposed on the upper cover 102. 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 wall 132 of the inner cylinder 131 is lifted upward spirally 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 flowing into the cyclone separation cylinder 104 from the inlet pipe 115 rises along the spiral partition wall 132 and swirls in the cyclone separation cylinder 104 and is centrifuged, and the communication port 117 and the upper opening are opened. 118 The Then, it is conveyed to the dust collecting case 105. Thus, since the partition wall 132 is spirally lifted upward, dust is given a strong action of ascending the cyclone separation cylinder 104, and the air volume is less than 1 cubic meter per minute such as a DC cordless vacuum cleaner. Even an operating vacuum cleaner can convey dust to the dust collection case 105. Here, since the axial direction of the cyclone separation cylinder 104 is not a horizontal direction, dust having a large specific gravity that has flowed into the cyclone separation cylinder 104 falls without being able to swivel during the swiveling at the time of the above-described low air volume, and falls into the cyclone. The collision with the separation cylinder 104 can be prevented many times, and the cyclone separation cylinder 104 can be prevented from being damaged or broken.
[0037]
Note that 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 in from the inlet pipe 115 and the air flow swirling in the cyclone separation cylinder 104 are less likely to interfere with and mix with each other, prevent turbulence associated therewith, and prevent sudden expansion during inflow. Can be reduced. Further, if the cross-sectional shape of the inlet tube 115 is a substantially rectangular shape with peripheral corners, the wall of the outer tube 135 and the partition wall of the inner tube 131 when the air flow flows from the inlet tube 115 into the cyclone separation tube 104. Since it can flow in along 132, the flow loss due to rapid expansion when flowing into the cyclone separation cylinder 104 can be reduced as compared with the case of the inlet pipe 115 having a circular section.
[0038]
As described above, when the cross-sectional shape of the inlet pipe 115 is a substantially rectangular shape, the cross-sectional shape of the connecting portion 2a of the hose 2 is changed from a circular shape on the hose side to a substantially rectangular shape that is a cross-sectional shape of the inlet pipe 115. By gradually changing the shape toward the center, the flow can be introduced into the cyclone separation cylinder 104 while suppressing loss due to separation of the flow.
[0039]
The cyclone separating cylinder 104 is separated into an outer cylinder 135, an inner cylinder 131, and members forming the exhaust port 120, and each is detachably fitted, and the respective members are in contact with each other while keeping airtightness. It should be noted that an elastic seal member may be interposed between the contact portions in order to realize an airtight contact. The cyclone separation cylinder 104 can be cleaned by separately separating the members that form the outer cylinder 135, the inner cylinder 131, and the exhaust port 120, respectively.
[0040]
The dust collection case 105 is provided with an upper opening 118 at a position facing the communication port 117 of the cyclone separation cylinder 104, and both are in contact with each other while maintaining an airtight state. On the exhaust side of the dust collection case 105, a first auxiliary filter 106 attached to the filter frame 140 is provided. Both sides of the filter frame 140 are open, and are provided so as to rotate about a shaft portion provided at the bottom. When the filter frame 140 is closed, the main case 141 of the dust collecting case 105 and the filter frame 140 are provided. Are in contact with each other while maintaining an airtight state.
[0041]
When throwing away the trash, hold the handle 123 at the top of the dust collection case 105, lift the dust collection case 105, push the lever 142 integrated with the clamp part that stops the filter frame 140, and open the filter frame 140. . The cleaning of the first auxiliary filter 106 can be performed by removing the first auxiliary filter 106 from the filter frame 140 and washing it.
[0042]
As the first auxiliary filter 106, it is desirable to use a sponge made of foamable and washable urethane, a washable nonwoven fabric, or a washable filter paper material.
[0043]
When antistatic treatment is applied to the first auxiliary filter 106 and the second auxiliary filter 112, the dust adhering to the first auxiliary filter 106 and the second auxiliary filter 112 is easily separated and can be easily cleaned. .
[0044]
A communication passage 145 and a cyclone outlet 146 are integrally provided below the dust collection case 105. Therefore, the dust collecting case 105 is divided into the main case 141, the communication passage 145, and the cyclone outlet 146 in the lower part of the filter frame 140. It has become. Further, the exhaust port 120 of the cyclone separation cylinder 104 is also in contact with the airtight state.
[0045]
The filter frame 140 is also in contact with a filter case 113 that houses the second auxiliary filter 112 provided in front of the electric blower 107 while maintaining airtightness. 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, the cleaner main body 1 configured as described above causes dust-containing air to flow into the cyclone separation cylinder 104 from the inlet pipe 115 of the cyclone separation cylinder 104 by the suction force of the electric blower 107. By rotating in 104, the dust is centrifuged and lifted upward in the cyclone separating cylinder 104 and conveyed to the dust collecting case 105 side. The dust-removed air 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 blowout of fiber dust or paper dust.
[0047]
Air from the exhaust port 120 flows to the second auxiliary filter 112 through the communication passage 145 and the cyclone outlet 146.
[0048]
Air containing dust from the communication port 117 of the cyclone separation cylinder 104 flows into the dust collecting case 105 through an upper opening 118 provided at the upper part of the dust collecting case 105, and dust in the air is collected by the first auxiliary filter 106. It is stopped and deposited before the first auxiliary filter 106. The air that has passed through the first auxiliary filter 106 flows toward the second auxiliary filter 112.
[0049]
The dust removal performance of the first auxiliary filter 106 is determined by the ability of the filter material, but it is preferable to have the ability to separate up to μm order dust. However, if the dust removal capability is too high, clogging is likely to be accelerated, so it is desirable to determine the balance with the overall dust removal capability.
[0050]
Most of the dust that has entered the vacuum cleaner body 1 is stored in the dust collection case 105. Therefore, the dust collection case 105 may be taken out of the vacuum cleaner body 1 and removed. It is desirable to dispose of the trash before dust overflows from the dust collection case 105. For this reason, the dust collecting case 105 is opposed to the upper opening 118 as shown in FIG. For A garbage disposal line 155 is provided at a position where the user can discard garbage with reference to this line. The waste disposal line 155 is not oriented horizontally or vertically, but when the dust accumulates in the dust collection case 105, the portion close to the upper opening 118 is filled with the waste at the end. It is set to tilt.
[0051]
In the present embodiment, since the air flow in the cleaner body 1 is divided into two paths as shown in FIG. 7, a pressure difference is applied to the dust in the dust collection case 105 in the air flow direction. This pressure difference causes the dust to be constantly compressed. Since this pressure difference increases as the amount of accumulated dust increases, it also has a feature that the amount of compression increases as the amount of dust increases. The dust in the dust collection case 105 accumulates in layers before the first auxiliary filter 106, and fine dust also accumulates together. For this reason, since dust is interspersed between fiber dusts, it is also possible to obtain an effect that it is difficult for dust to rise when throwing away garbage.
[0052]
Furthermore, since the air volume passing through the exhaust port 120 of the cyclone separator 104 is smaller than when air does not pass through the dust collection case 105, the resistance of the cyclone separator 104 can be reduced. Therefore, it has the feature that the suction power of the vacuum cleaner can be further increased.
[0053]
Further, in the cyclone separation cylinder 104, dust-containing air flows into the cyclone separation cylinder 104 from the inlet pipe 115 of the cyclone separation cylinder 104 and swirls in the cyclone separation cylinder 104, whereby the dust is centrifuged and the dust is separated. It is lifted upward in the cyclone separating cylinder 104 and conveyed to the dust collecting case 105 side. At this time, since there is a flow of air exhausted from the first auxiliary filter 106 from the cyclone separation cylinder 104 through the dust collection case 105, the dust centrifuged in the cyclone separation cylinder 104 is collected in the dust collection case. It becomes easy to flow in to the 105 side, and dust is instantly separated to the dust collecting case 105 side, so that the dust collection efficiency can be increased.
[0054]
Further, since the dust that has been centrifuged in the cyclone separation cylinder 104 and conveyed to the dust collection case 105 side is unlikely to flow back to the cyclone separation cylinder 104, the dust conveyed to the dust collection case 105 side is scattered again. The dust collection efficiency can be increased without doing so.
[0055]
Furthermore, when dust adheres to the net filter 133 of the inner cylinder 131, the amount of air flow exhausted from the exhaust port 120 that exhausts the air removed from the cyclone separation cylinder 104 is reduced. The air volume of the dust collection case exhaust port 144 that is an exhaust port from the dust collection case 105 that has passed increases. For this reason, the dust adhering to the mesh filter 133 of the inner cylinder 131 is transported to the dust collecting case 105.
[0056]
Further, the dust collection case exhaust port 144 that 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 through the air removed from the cyclone separation cylinder 104. The cross-sectional area of the exhaust port 120 is larger. 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. Further, 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 the dust at the downstream end 119 is removed. You can prevent accidents. In addition, when the upper side of the downstream end 119 is tilted 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 on the upper side), Even if dust catches on the downstream end 119 of the communication port 117, the dust moves upward above the downstream end 119, and air flows from the cyclone separation cylinder 104 to the dust collecting case 105 during this movement. Thus, 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 collection case 105 increases, the resistance when passing through the dust collection case 105 increases, so the flow rate flowing in the dust collection case decreases. Therefore, when there is a large amount of dust that is likely to generate odor, the amount of air passing through that portion is reduced, and there is also an effect that it is difficult to remove the odor outside the vacuum cleaner.
[0059]
Further, when the inside of the communication passage 145 and the cyclone outlet 146 becomes dirty, it can be easily cleaned with the dust collecting case 105 taken out.
[0060]
In addition, 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 cylinder 104 and the upper opening 118 of the dust collecting case 105 can be provided in the upper part, and the dust collecting case 105 Since the dust that has entered falls down due to gravity, spillage into the cyclone separation cylinder 104 can be prevented.
[0061]
Further, since the upper opening 118 of the dust collection case 105 is disposed in front of the dust collection case 105, the upper opening 118 of the dust collection case 105 is disposed when the vacuum cleaner body 1 is stood up and stored. Since it is disposed above the dust case 105, it is possible to prevent dust that has entered the dust collection case 105 from spilling into the cyclone separation cylinder 104.
[0062]
Further, since the dust collecting case 105 is arranged on the side surface of the cyclone separating cylinder 104, the length direction of the cyclone separating cylinder 104 can be increased without increasing the height of the vacuum cleaner main body 1. It has the feature that the separation ability of can be increased.
[0063]
When the electric blower 107 is stopped near the inlet pipe 115, 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 dust from spilling when the operation of the electric blower 107 is stopped and the cyclone separation cylinder 104 is taken out.
[0064]
As shown in FIG. 15, the cyclone separating cylinder 104 and the dust collecting case 105 may be provided integrally. In this case, the mass held by hand when throwing away the trash is increased, and the handling property is lowered, but the cyclone separating cylinder 104 is provided. Since the exhaust port 120 and the communication passage 145 are configured integrally with each other and the dust collection case 105, perfect 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 made higher, and dust leakage and spillage can be suppressed.
[0065]
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 is dirty, there is an aspect that it cannot be easily cleaned. However, it is possible to reduce the number of places that keep the whole airtight. Moreover, since the direction which maintains airtightness can be made into an up-down direction, the characteristic which can maintain airtightness easily can be given.
[0066]
The separation chamber for separating dust from the dust-containing air has been described as the cyclone separation cylinder 104. However, the separation chamber is not limited to the cyclone separation cylinder 104, and an inlet portion for flowing dust-containing air into the lower portion of the separation chamber is provided. Provided with a communication port leading to a dust collection case placed on the side of the separation chamber at the top of the separation chamber, and a guide plate for forming a flow for conveying air and dust from the bottom to the top inside the separation chamber. If it is the provided vacuum cleaner, the hose connection port part communicating with the inlet part can also be arranged below the center in the height direction of the separation chamber. For this reason, since the said hose connection port part can be arrange | positioned at the lower part of a vacuum cleaner main body, when the said vacuum cleaner main body is drawn around with a hand control tube via the said hose, the said vacuum cleaner main body does not fall easily. Can be routed 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, in order to explain the flow of air, a cross section is partially shown. FIG. 18 is a vertical cross-sectional view of a dust collection portion 460 in which the cyclone separation cylinder 404 and the dust collection case 405 are integrated. Here, it is the longitudinal cross-sectional view seen from the back side of the cleaner body 301. FIG. 19 is a view of the dust collection unit 460 as viewed from the back side of the cleaner body 301. 20 is a cross-sectional view showing a BB cross section of FIG.
[0068]
A suction port 305 that opens toward the floor is attached to the vacuum cleaner main body 301 so as to be rotatable within a predetermined angle range. A rotary brush 306 is provided in the suction port 305 so as to face the floor surface. . A dust collector 460 is detachably attached to the cleaner body 301. The dust collection unit 460 includes a cyclone separation tube 404, a dust collection case 405 disposed on the side of the cyclone separation tube 404, and a filter frame 440 on the cleaner body 301 side of the dust collection unit 460. The frame 440 is rotatably provided. The electric blower (not shown) drives the rotating brush 306 in the suction port 305 and the blower of the electric blower by the rotation of the rotating shaft of the electric blower, and therefore above the suction port 305 and below the cleaner body 301. It is disposed below a certain dust collection part 460. By the intake force of this electric blower, the air is sucked from the suction port 305 and sucked into the suction flow, and the sucked dust-in air is collected on the side of the cyclone separation cylinder 404 via the joint pipe 304 and the hose 302. Dust is collected in the dust case 405. In addition, a grip portion 303 that a user grips is provided on the upper portion of the cleaner body 301, and the electric vacuum cleaner moves back and forth by operating the grip portion 303.
[0069]
The vacuum cleaner body 301 separates dust by centrifugal action by flowing dust-containing air from the inlet pipe 415 through the hose 302 into the cyclone separation cylinder 404 and turning it, so that the upper communication port 417 and the upper opening are separated. Dust is conveyed to the dust collecting case 405 through 418. Exhaust gas from the cyclone separation cylinder 404 passes through the inner cylinder 431 and is exhausted to a communication passage 445 provided in the lower part of the dust collecting case 405 through an exhaust port 420 provided in the lower part of the cyclone separation cylinder 404. Also, part of the air flows into the dust collection case 405 and the first auxiliary filter 406 captures the dust. The exhaust from the dust collection case 405 is exhausted from the dust collection 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 from the cyclone separation cylinder 404 also passes through the communication passage 445 from the exhaust port 420, flows out from the cyclone outlet 446, passes through the second auxiliary filter 412, and is exhausted from the dust collection case 405. Combine with the electric blower. The exhaust from the electric blower is discharged outside the machine through the exhaust port 307 after passing through the filter.
[0070]
The inlet pipe 415 and the hose connection port portion 416 of the cyclone separation cylinder 404 are in contact with each other in an airtight state, the cyclone separation cylinder 404 and the inner cylinder 431 are in contact with each other in an airtight state by an elastic seal 451, The mouth 420 and the communication passage 445 are in airtight contact with the elastic seal 452, and the cyclone section outlet 446 and the dust collection case exhaust 444 are connected to the cleaner body 301 in which the second auxiliary filter 412 is housed. It is urged so as to contact the space in an airtight state. The filter frame 440 includes an elastic seal 450 on the dust collection case 405 and the communication passage 445 side and on the cleaner body 301 side. For this reason, when the dust collection part 460 is attached to the cleaner main body 301, this dust collection part 460 and the cleaner main body 301 are urged | biased and attached so that it may contact | abut in an airtight state. Here, since air enters and exits between the cleaner main body 301 and the dust collecting portion 460 in the front-rear direction of the cleaner main body 301, force is applied in the front-rear direction of the cleaner main body 301 in these airtight states. It has a feature that it is easy to take airtightness. Here, when the dust collection part 460 is pushed into the cleaner body 301, the dust collection part 460 is fixed to the cleaner body 301 by a stopper 461 provided on the cleaner body 301, thereby realizing an airtight state. In addition, dust leakage and spillage can be suppressed.
[0071]
Further, the axial direction of the cyclone separating cylinder 404 is inclined not obliquely to the vertical direction, and the axial length of the cyclone separating cylinder 404 can be increased without increasing the height direction of the vacuum cleaner 301, and dust collection performance. Can be improved.
[0072]
Further, the cyclone separating cylinder 404 and the dust collecting case 405 can be separated and removed from the cleaner main body 301 by holding the handle 423 and pressing the removal switch 462. A first auxiliary filter 406 and a filter frame 440 are provided on the exhaust side of the dust collection case 405.
[0073]
If a filter 406b such as a sponge having a large amount of dust collected is placed in the filter case 406a on the upstream side of the first auxiliary filter 406, dust can be prevented from being blown through the first auxiliary filter 406. At this time, it is advantageous in handling if the filter 406b is a washable material such as an ether material. Further, if an antistatic mesh filter 406c that is insert-molded integrally with the filter case 406a is provided on the upstream side of the filter 406b, dust releasability from the first auxiliary filter increases when the dust is thrown away. Dust easily drops off, which is preferable. The first auxiliary filter 406 can further prevent dust from leaking from the dust collecting case 405 if a filter using a nonwoven fabric or a net filter is installed. The first auxiliary filter 406 made of this non-woven fabric or the like is easy to handle if it is insert-molded integrally with the filter frame 440.
[0074]
If the second auxiliary filter 412 is made of a nonwoven fabric folded in a folded shape, the air passage area of the filter can be increased, so that the ventilation resistance can be reduced and the suction work rate can be increased. Moreover, since the flow velocity of air when passing through the filter can be reduced, the efficiency of collecting dust can be improved.
[0075]
Furthermore, if the second auxiliary filter 412 is divided into the cyclone section outlet 446 side and the dust collection case outlet 444 side, and the height of the folds of the filter on the cyclone section outlet 446 side is increased, the cyclone separation cylinder The flow rate when the exhaust from 404 passes through the second auxiliary filter 412 can be further reduced, the ventilation resistance can be reduced, and the dust that could not be separated and collected by the cyclone separation cylinder 404 can be efficiently collected. .
[0076]
The hose connection port 416 is located at the center in the width direction of the cleaner body 301 as viewed from above, and is disposed on the back surface of the cleaner body 301. The center axis of the cyclone separating cylinder 104 is shifted from the center of the vacuum cleaner body 301 in the width direction, and an inlet pipe 415 for allowing air to flow in the substantially tangential direction of the cyclone separating cylinder 404 is disposed at the end of the dust collecting section 460. Has been. That is, when this dust collecting part 460 is attached to the cleaner body 301, dust-containing air flows into the inlet pipe 415 from the back side of the cleaner body 301 and from the left and right end sides. The dust collection case 405 is disposed on the side surface of the cyclone separation cylinder 404 on the side opposite to the cyclone separation cylinder 404 with respect to the central axis of the cleaner body 301. In addition, the exhaust 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 of the cyclone outlet 446 merge and communicate with the back side of the cleaner body. It is a configuration. By arranging in this way, the length of the main body can be shortened, and a small size and light weight can be achieved.
[0077]
Further, a cyclone separation tube 404 is arranged on the left side when viewed from the front with respect to the central axis in the left-right direction of the cleaner body 301, and the first auxiliary filter 406, the second auxiliary filter 412 and the inflow of the electric blower are on the right side. Since the air flow path from the second auxiliary filter 412 to the electric blower can be shortened, loss due to friction can be reduced. At this time, the timing belt for driving the rotating brush 306 disposed in the suction port 305 may be disposed on the left side which is the cyclone separating cylinder 404 side. It should be noted that the same effect can be obtained by symmetrically replacing those arranged on the right side and those arranged on the left side.
[0078]
Here, the direction in which the dust centrifuged in the cyclone separation cylinder 404 flows out of the cyclone separation cylinder 404 through the communication port 417 is a turning direction in the cyclone separation cylinder 404 and a tangential direction of the cyclone separation cylinder 404. is there. Therefore, 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 are opened and closed in the dust collection case 405. It can be arranged on the front side of the cleaner body 301 farthest from the auxiliary filter 406 (on the side opposite to the hose connection port 416). Here, the dust centrifuged in the cyclone separation cylinder 404 is accumulated from the vicinity of the first auxiliary filter 406 that opens and closes, and the communication port 417 of the cyclone separation cylinder 404 and the dust collecting case 405 that communicates with the communication port 417. Since dust is accumulated while being compressed in order toward the upper opening 418 side, it is difficult for the dust to block the communication port 417 and the upper opening 418 until the dust collecting case 405 is filled with dust. Accumulate dust. That is, the volume of the dust collection case 405 can be used effectively.
[0079]
In addition, since the first auxiliary filter 406 is attached in the dust collection unit 460 at a location close to the back side of the cleaner body 301, the filter area of the first auxiliary filter 406 is set to be equal to that of the dust collection unit 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, ribs 456 and ribs 457 are arranged in the dust collection case 405 to suppress vortices generated in the dust collection case 405. For this reason, it is possible to suppress the dust flowing into the dust collection case 405 from flowing into the cyclone separation cylinder 404 again. Since dust can be prevented from re-scattering into the cyclone separation cylinder 404, dust collection efficiency can be improved. If the rib 457 is disposed on the bottom surface of the dust collection case 405, the strength of the dust collection case 405 can be improved. Therefore, the dust collection case 405 can be made difficult to be deformed, and dust collected in the dust collection case 405 can be prevented from spilling to the communication passage 445 side.
[0081]
In this configuration, since more dust can be stored in the dust collection case 405, the period of waste disposal can be lengthened. Further, since fine dust such as sand or earth is sandwiched between fiber dust in the dust and compressed, it has the feature that it becomes difficult for the fine dust to fly up when throwing away the garbage.
[0082]
When the dust collecting unit 460 is attached to the cleaner body 301, the communication port 417 and the upper opening 418 of the dust collecting case 405 can be arranged on the front side of the cleaner body 301, so that the garbage disposal line is located near the upper opening 418. 455 can be displayed. For this reason, the user can perform the waste disposal with reference to the waste disposal line 455 arranged on the front side of the cleaner body 301, which is an easily viewable position. The garbage disposal line 455 is set as a line inclined obliquely from the accumulation condition of the garbage because the part close to the upper opening 418 is filled with the garbage at the end when the dust accumulates in the dust collecting case 405.
[0083]
At the time of throwing away the trash, the handle 423 of the dust collector 460 is held and the removal switch 462 is pushed to remove the dust collector 460 from the cleaner body 301. The Separate and take out. Next, by pushing a lever 442 integrated with a clamp portion that holds the filter frame 440, the filter frame 440 is set with the opening / closing shaft 443 of the filter frame 440 as a rotation axis. The Open and do. 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 collection case 405 spreads from the front side to the back side (filter frame 440 side) of the cleaner body 301, the dust collected in the dust collection case 405 can be easily discarded, and the dust is It is difficult to remain in the dust collection case 405.
[0084]
Further, when the filters are clogged, the first auxiliary filter 406 is washed with water, naturally dried, and used after being dried. The second auxiliary filter 412 is also taken out, washed with water, naturally dried, and attached after it is dried.
[0085]
The net filter 433 of the inner cylinder 431 is cleaned by removing the inner cylinder 431 from the outer cylinder 435 of the cyclone separation cylinder 404 and attaching the inner cylinder 433 again after cleaning. In this way, when dust is sucked to the extent that it overflows from the dust collection case 405, the dust accumulates in the cyclone separation cylinder 404. If the inner cylinder 431 is removed from the outer cylinder 435 of the cyclone separation cylinder 404, this dust will be collected. Can be easily removed.
[0086]
The inner cylinder 431 includes a partition wall 432, a cylinder part 434, and a guide wall 437, and a resin fiber net is formed in the cylinder part 434 as a net filter 433 by insert molding integrally with the cylinder part 434. The mesh filter 433 may be configured as a cylindrical portion on the side surface, may be configured as an upper plane portion of the cylindrical portion, or may be configured by combining the upper plane portion of the cylindrical portion and the cylindrical portion of 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, but the mesh filter 433 and the opening are not provided at about 90 degrees near the inlet pipe 415. For this reason, even if fine dust such as hair flows from the inlet pipe 415, it can be prevented from directly hitting the net filter 433, and can be prevented from being tangled and entangled.
[0087]
Further, since the mesh filter 433 receives an inward force of the inner cylinder 431, an inner cylinder rib 436 may be provided on the inner diameter side of the mesh filter. Here, when the antistatic treatment is applied to the mesh filter 433, dust adhering to the mesh filter 433 is easily separated and cleaning is easy.
[0088]
Here, the partition wall 432 of the inner cylinder 431 is formed so as to be spirally lifted in the swirl winding direction in the cyclone separation cylinder 404 so as to lift the air flow in the cyclone separation cylinder 404 upward. . For this reason, the dust flowing into the cyclone separation cylinder 404 from the inlet pipe 415 rises along the spiral partition wall 432 and swirls in the cyclone separation cylinder 404 and is centrifuged, and the communication port 417 and the upper opening are opened. 418 The Then, it is conveyed to the dust collecting case 405. Thus, since the partition wall 432 is lifted upward in a spiral shape, even in a vacuum cleaner that operates at a low air volume, the dust is given a strong action of rising inside the cyclone separation cylinder 404, and the dust is collected in the dust collecting case. 4 It is possible to convey to 05, 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 in from the inlet pipe 415 and the air flow swirling in the cyclone separation cylinder 404 are difficult to interfere with and mix with each other, prevent turbulence associated therewith, and prevent sudden expansion at the time of inflow. Can be reduced. In addition, if the cross-sectional shape of the inlet pipe 415 is a substantially rectangular shape with peripheral corners, when the air flow flows from the inlet pipe 415 into the cyclone separation cylinder 404, the outer pipe 435 and the inner cylinder 431 enter the partition wall 432. It can flow in along, and the loss due to the turbulence of the flow can be reduced.
[0090]
Here, the inner surface of the cyclone separation cylinder 404 or the inner surface of the dust collecting case 405 is subjected to a clear UV curable coating treatment. For this reason, when dust flows into the cyclone separation cylinder 404, and the dust is centrifuged and flows into the dust collection case 405, the dust is collected on the surface inside the cyclone separation cylinder 404 and the inner surface of the dust collection case. Even in the case of collision and rubbing, it is difficult for scratches to be made on the surface, making it difficult for dirt to adhere, and improving abrasion resistance and contamination resistance. For this reason, even when the outer cylinder 435 of the cyclone separation cylinder 404 and the dust collection case 405 are made of a transparent plastic material, the dust accumulation can be visually confirmed.
[0091]
Further, the cyclone separating cylinder 404 and the dust collecting case 405 are molded using an antistatic resin agent, or dust is attached to the cyclone separating cylinder 404 and the dust collecting case 405 by applying an antistatic agent to the surface. The number of cleanings can be reduced.
[0092]
When the dust collecting part 460 is manufactured by integrally forming the cyclone separating cylinder 404 and the dust collecting case 405, the cyclone separating cylinder 404 part slides the mold downward, and the dust collecting case 405 part 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 created below the communication port 417. If this space 419 is formed as a recess having an opening on the front surface side of the cleaner main body 301, the shape becomes distorted in appearance, which is not preferable. Further, this part is in the vicinity of the handle 423, and when the handle 423 is held by hand, there is a problem that it is difficult to hold. For this reason, the space 419 below the communication port may be configured as a space 419 having an opening below the dust collection portion 460.
[0093]
The outer cylinder 435 of the cyclone separation cylinder 404 is provided with an inlet pipe 415 as an air intake port below the center of the cyclone separation cylinder 404 in the central axial direction, and the cyclone separation cylinder 404 having a substantially cylindrical shape. It is installed so that air can enter in the direction of tangential line. For this reason, the hose connection port part 416 can be arrange | positioned under the cleaner main body 301, the length of the hose 302 can be shortened, and the effect which can reduce losses, such as friction, is acquired.
[0094]
A communication port 417 is provided above the center of the cyclone separation cylinder 404 and allows air to flow into the dust collection case 405 together with dust. An inner cylinder 431 is provided at the lower part of the cyclone separation cylinder 404 and is connected to the lower exhaust port 420. Here, since this exhaust port 420 can be provided below the cyclone separation cylinder, the flow path to the electric blower can be shortened. By arranging in this way, it is possible to shorten the height of the cleaner body 301, achieve a small size and light weight, and obtain an effect of reducing loss such as friction.
[0095]
【The invention's effect】
According to the present invention, a cyclone separating cylinder that generates a swirling flow upward, and a dust collecting case having a filter inside is disposed on the side surface and attached to the main body of the vacuum cleaner. A dust part can be realized.
[0096]
A small cyclone separation cylinder that sucks air from the bottom and exhausts it to the bottom, and a part of the exhaust through a filter provided in the lower part of the dust collection case. A cyclone separation type dust collecting part with a large dust capacity can be realized.
[0097]
Since the inner cylinder partition is lifted upward in a spiral shape, even in a vacuum cleaner that operates at a low air flow, dust can be given a strong action to rise in the cyclone separation cylinder, and the dust can be conveyed to a dust collection case. Is possible.
[0098]
Further, it is possible to reduce the loss due to interference and mixing of the air flow flowing into the cyclone separation cylinder 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 vacuum cleaner body in the electric vacuum cleaner shown in FIG.
3 is a perspective view showing a state in which an upper cover of the main body of the vacuum cleaner in the electric vacuum cleaner shown in FIG. 1 is opened. FIG.
4 is a perspective view showing a state where the upper cover of the vacuum cleaner main body in the electric vacuum cleaner shown in FIG. 1 is opened and the dust collecting case is removed. FIG.
5 is a perspective view showing a state in which the upper cover in the vacuum cleaner main body of the electric vacuum cleaner shown in FIG. 1 is opened and the dust collecting case and the cyclone separating cylinder are removed. FIG.
FIG. 6 is a plan view showing a state where an upper case and an upper lid are removed from the cleaner body.
FIG. 7 is a schematic diagram showing the flow of air.
8 is an external perspective view of a cyclone separation cylinder 104. FIG.
9 is an external perspective view of the dust collecting case 105. FIG.
10 is a cross-sectional view taken along the line AA of FIG.
11 is a cross-sectional view including an inlet pipe portion of a cyclone separating cylinder 104. FIG.
12 is a sectional view including a cyclone separating cylinder 104 and a communication port 117 of the dust collecting case 105. FIG.
13 is a side view of the dust collecting case 105 as viewed from the exhaust side. FIG.
14 is a perspective view of an inner cylinder 131. FIG.
15 is an external perspective view when the cyclone separating cylinder 104 and the dust collecting case 105 are integrated. FIG.
FIG. 16 is an external perspective view of an upright type vacuum cleaner according to 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 unit 460 in which a cyclone separating cylinder 404 and a dust collecting case 405 are integrated.
19 is a view of the dust collecting unit 460 as viewed from the back side of the cleaner 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 collection part, 104 ... Cyclone separation cylinder, 105 ... Dust collection case, 106 ... First auxiliary filter, 107 ... Electric blower, 112 ... Second Auxiliary filter, 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 collecting 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 (3)

At the bottom of the cyclone separation cylinder that removes dust-containing air by centrifugation, there is an inlet pipe for flowing dust-containing air, and at the top of the cyclone separation cylinder, there is a communication port leading to the dust collection case placed on the side of the cyclone separation cylinder. In the provided vacuum cleaner,
An inner cylinder is provided inside the cyclone separating cylinder,
The inner cylinder includes a cylinder part, a partition wall spirally provided on the cylinder part, and extends downward from the upper end position of the partition wall toward the lower side of the inner cylinder, and includes an end part of the inlet pipe and the cylinder part. Establish a guide wall to connect ,
The vacuum cleaner according to claim 1, wherein the guide wall is provided on one side of the inlet pipe . In claim 1,
The vacuum cleaner characterized in that the height of the guide wall is higher than the height of the inlet pipe. In claim 1 or 2,
The vacuum cleaner, wherein the inner cylinder is detachably provided from the cyclone separation cylinder.

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