JP3648502B2 - Electric 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 part is described in JP-A-2001-29288. 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 separation type dust collecting unit in a vacuum cleaner, a dust separation device described in JP-T-10-511880 has a double structure of an outer separation tube and an inner separation tube. It is proposed that coarse dust is centrifuged to remove dust in the outer separation cylinder, and fine dust is centrifuged to remove dust in the inner separation cylinder.
[0005]
[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.
[0006]
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.
[0007]
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.
[0008]
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.
[0009]
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.
[0010]
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.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is characterized by a vacuum cleaner main body incorporating an electric blower, and a centrifugal separator which is provided in the vacuum cleaner main body and flows dust-in air sucked from a suction port through an inlet pipe. A cyclone separation cylinder that removes dust, an inner cylinder having an exhaust port provided in the cyclone separation cylinder, a dust collection case provided in the cleaner body and having an opening communicating with the cyclone separation cylinder, and the dust collection A filter disposed in the case, and a communication passage formed separately from the cyclone separation cylinder and the dust collection case and communicating with the exhaust port, and flows out of the air passing through the filter and the communication passage After joining the air, it is sucked into the electric blower.
[0012]
In addition to the first means, the filter is attached to a filter frame, and the filter frame is provided so as to rotate with respect to the dust collecting case.
[0013]
Further, in addition to the first and second means, the dust collecting case is positioned in front of the electric blower, and the opening is formed in front of the dust collecting case.
[0014]
In any one of the first to third means, the area of the exhaust port exhausted from the dust collecting case that has passed through the filter is made larger than the area of the exhaust port of the cyclone separation cylinder. To do.
[0015]
In any one of the first to third means, the cyclone separation cylinder is formed in a substantially cylindrical shape, and the inlet pipe is arranged at a position where air flows in a direction substantially tangential to the cyclone separation cylinder. It is characterized by that.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments 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 separates dust by centrifugal action by flowing dust-containing air from the inlet pipe 115 through the hose 2 into the cyclone separating cylinder 104 and turning it. The dust is conveyed to the dust collecting case 105 through the communication port 117, and the exhaust from the cyclone separation cylinder 104 passes through the inner cylinder 131 and is exhausted to the communication passage 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 collection case 105 is sucked into the electric blower 107 through the second auxiliary filter 112 from the communication port 146 behind the first auxiliary filter 106. At this time, the exhaust from the cyclone separating cylinder 104 is also sucked into the electric blower 107. 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 108 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 communication passage 120 at the bottom of the cyclone separation cylinder 104 and the communication passage 145 provided at the lower portion of the dust collection case 105 are airtight. Abutting on the state, the communication port 146 and the filter case 113 in which the second auxiliary filter is accommodated 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]
When the upper lid 102 is opened upward, the cyclone separating cylinder 104 and the dust collecting case 105 are slightly lifted from the lower case 101. In this state, the dust collecting case 105 can be separated and taken out by holding the handle 123 at the top of the dust collecting case 105, and the dust collecting case 105 is opened by opening the first auxiliary filter 106 in the dust collecting case 105. Discard the dust inside.
[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]
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.
[0027]
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, the center axis of the cyclone separation cylinder 104 is shifted from the center in the width direction, and air flows in the substantially tangential direction of the cyclone separation cylinder 104. The inlet pipe 115 and the hose connection port 116 are arranged in a straight line. 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.
[0028]
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.
[0029]
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 cross-sectional view including the cyclone separating cylinder 104 and the communication port 117 of the dust collecting case 105, and FIG. 13 is a side view of the dust collecting case 105 viewed from the exhaust side.
[0030]
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 communication passage 120. The inner cylinder 131 is constituted by 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 only on the upper flat surface of the cylindrical portion, or may be formed on the 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. It doesn't matter. 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.
[0031]
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.
[0032]
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.
[0033]
The cyclone separating cylinder 104 is separated into an outer cylinder 135, an inner cylinder 131, and members forming the communication passage 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 communication passage 120, respectively.
[0034]
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.
[0035]
When throwing away the trash, hold the handle 123 above the dust collection case 105, lift the dust collection case 105, pull the lever 142 that is integrated with the clamp part holding the filter frame 140 forward, and remove the filter frame 140. Open and do. 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.
[0036]
For the auxiliary filter 106, it is desirable to use a sponge made of a foamable and washable plastic, a non-woven fabric that can be washed with water, or a filter paper material that can be washed with water.
[0037]
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. .
[0038]
A communication passage 145 and a communication port 146 are integrally provided at the lower part of the dust collection case 105. Accordingly, the dust collecting case 105 is divided into the main case 141, the communication passage 145, and the communication port 146 in the lower part of the filter frame 140, but the part where both are joined comes into contact with each other while maintaining airtightness. Yes. Further, the communication path 120 of the cyclone separating cylinder 104 is also in contact with the airtight state.
[0039]
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.
[0040]
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 out from the inner cylinder 131 of the cyclone separation cylinder 104 to the communication passage 120 through the net filter 133. The mesh filter 133 functions to prevent blowout of fiber dust or paper dust.
[0041]
Air from the communication passage 120 flows to the second auxiliary filter 112 via the communication passage 145 and the communication port 146.
[0042]
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 auxiliary filter flows toward the second auxiliary filter.
[0043]
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.
[0044]
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 collection case 105 is provided with a waste disposal line 155 at a position facing the upper opening 118 as shown in FIG. 9, so that the user can discard the waste with reference to this. The garbage disposal line does not face horizontally or vertically, but when the dust accumulates in the dust collection case 105, the part close to the upper opening 118 is filled with the garbage at the end. It is set.
[0045]
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. Therefore, more dust can be stored in the dust collection case 105, and therefore the cycle of waste disposal can be lengthened.
[0046]
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.
[0047]
Furthermore, since the flow rate on the exhaust side of the cyclone separator 104 is smaller than when the air does not pass through the dust collecting 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.
[0048]
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.
[0049]
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.
[0050]
Furthermore, when dust adheres to the net filter 133 of the inner cylinder 131, the amount of air flow exhausted from the communication port 146, which is the second exhaust port for exhausting the air removed from the cyclone separation cylinder 104, is reduced. The air volume of the first exhaust port 144 that is the exhaust port from the dust collecting case 105 that has passed through the first auxiliary filter 106 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.
[0051]
Further, the air collected from the cyclone separation cylinder 104 is exhausted from the cross-sectional area of the first exhaust port 144 that is the exhaust port from the dust collection case 105 that has passed through the first auxiliary filter 106 from the dust collection case 105. It is larger than the cross-sectional area of the communication port 146 that 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. 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.
[0052]
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.
[0053]
Further, when the inside of the communication passage 145 and the communication port 146 becomes dirty, it can be easily cleaned with the dust collecting case 105 taken out.
[0054]
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.
[0055]
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.
[0056]
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.
[0057]
Further, since it is difficult to receive fluid force such as a ring and heavy dust tends to stay in the cyclone separation cylinder 104, the cyclone separation cylinder 104 can be easily taken out from the inlet pipe 115 by taking it out with the handle 125 and tilting it. It also has the feature of being able to do it.
[0058]
In addition, since heavy dust that is hard to receive fluid force does not enter the dust collection case 105 from the cyclone separation cylinder 104, the first auxiliary filter 106 of the dust collection case 105 is not broken, and dust is collected from the dust collection case 105. Can be prevented from coming off.
[0059]
As shown in FIG. 14, the cyclone separating cylinder 104 and the dust collecting case 105 may be provided integrally. In this case, the mass held by hand when the trash is thrown away becomes large, and the handling property is lowered. Since the communication passage 120 and the communication passage 145 are integrally configured between the dust collection case 105 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.
[0060]
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 is easy to maintain airtightness can be given.
[0061]
【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.
[0062]
Moreover, the main body can be shortened by moving the central axis of the cyclone separating cylinder toward one side from the center of the main body and arranging the electric blower on the opposite side.
[0063]
A cyclone separation cylinder that sucks air from the bottom and exhausts it to the bottom, and a part of the exhaust flows in a dust collection case that has a filter, making it compact and high in dust collection (dust collection) performance. A large cyclone separation type dust collecting part can be realized.
[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 an external perspective view when the cyclone separating cylinder 104 and the dust collecting case 105 are integrated. FIG.
[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 ... communication passage, 131 ... inner cylinder, 145 ... communication passage, 146 ... communication port, 150 ... upper case.

Claims (5)

A vacuum cleaner body with a built-in electric blower, a cyclone separation cylinder that is provided in the vacuum cleaner body, flows dust-in air sucked from the suction port from the inlet pipe and removes dust by centrifugation, and provided in the cyclone separation cylinder An inner cylinder having an exhaust port; a dust collection case provided in the vacuum cleaner body and having an opening communicating with the cyclone separation cylinder; a filter disposed in the dust collection case; the cyclone separation cylinder and the dust collection A communication passage formed separately from the case and communicating with the exhaust port,
The vacuum cleaner, wherein the air that has passed through the filter and the air that has flowed out of the communication passage merge and are then sucked into the electric blower. In claim 1,
The vacuum cleaner according to claim 1, wherein the filter is attached to a filter frame, and the filter frame is provided so as to rotate with respect to the dust collecting case. In claim 1 or 2,
The dust collection case is located in front of the electric blower,
The vacuum cleaner characterized in that the opening is formed in front of the dust collecting case. In any one of Claims 1 thru | or 3,
The vacuum cleaner characterized in that the area of the exhaust port exhausted from the dust collecting case that has passed through the filter is larger than the area of the exhaust port of the cyclone separation cylinder. In any one of Claims 1 thru | or 4,
The vacuum cleaner, wherein the cyclone separation cylinder is formed in a substantially cylindrical shape, and the inlet pipe is disposed at a position where air flows in a direction substantially tangential to the cyclone separation cylinder.

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