JP4205954B2 - Electric vacuum cleaner - Google Patents

Description

[0001]
【Technical field】
[0002]
The present invention relates to an electric vacuum cleaner that collects dust in a dust collecting section using an air flow generated by an electric blower and performs cleaning.
[Background]
[0003]
Conventionally, as a vacuum cleaner called a stick type, for example, one having a configuration described in Japanese Patent Application Laid-Open No. 2000-14605 is known. That is, the electric vacuum cleaner according to this prior art incorporates a suction body portion having a brush chamber with a built-in rotating brush in the front portion, and a fan motor having a motor shaft for driving the rotating brush, and The upper suction side is composed of a vacuum cleaner body formed with a dust collection chamber.
[0004]
Further, for example, in Japanese Patent Application Laid-Open Nos. 9-192056, 9-192069, and 9-192062, an on-floor traveling head provided with wheels, and an elongated body that is rotatably connected to the head. The head has two motors, one of the motors is connected to the impeller, the other is connected to the rotating brush, and the head supplies electricity to these motors. A rechargeable battery and a three-position electrical switch, i.e. all of the vacuum cleaner work elements including air filters and dust collection cups are provided in the above-ground traveling head. A vacuum cleaner has been proposed in which the handle has no working elements at all.
[0005]
Further, for example, Japanese Patent Publication No. 7-53142 discloses a vacuum cleaner having a vacuum cleaner body having a dust collection chamber and an electric blower, and a suction body connected to the vacuum cleaner body via a hose and an extension pipe. And the vacuum cleaner which provided the dust collection chamber and the electric blower also in the suction mouth side is proposed. In this vacuum cleaner, the vacuum cleaner main body and the suction body are connected and used. In addition to the so-called floor movement type vacuum cleaner, the connected suction body is removed from the vacuum cleaner main body, and the suction body side It can also be used as a so-called stick-type vacuum cleaner that drives the electric blower to collect dust in the dust collection chamber on the suction body side.
[0006]
However, in the vacuum cleaners described in the above-mentioned JP-A 2000-14605, JP-A 9-192056, JP-A 9-192059, JP-A 9-192062, etc., the suction work rate, Consideration about properly using the cleaning capacity such as dust storage capacity and usage time and the operability of the vacuum cleaner according to the situation has not always been sufficient. In addition, since such a small vacuum cleaner must be configured to be small in size, it is necessary to reduce the size of the dust collection chamber, and thus the area of the dust collection filter is also reduced. Accordingly, there is a drawback that the dust collecting filter is likely to be clogged with dust.
[0007]
Furthermore, in particular, the one described in the above-mentioned Japanese Patent Publication No. 7-53142 provides two types of usage, a floor moving type vacuum cleaner and a stick type vacuum cleaner. The dust in the dust collection chamber that has collected dust when used as a vacuum cleaner must always be discarded by opening and closing the lid that covers the dust collection chamber, which is cumbersome. In particular, the suction mouths of recent vacuum cleaners have been reduced in size and weight in order to improve their operability, and the dust collection chamber in the suction body cannot be made large. However, there was a drawback in that it became full immediately, and the number of times the trash was thrown away (frequently). In addition, as in the prior art, there is a drawback that the dust collecting filter is easily clogged with dust.
DISCLOSURE OF THE INVENTION
[0008]
The object of the present invention is to solve the above-described problems in the prior art, that is, in a small vacuum cleaner, the dust collection chamber is configured to be small, and dust is effectively accumulated and collected in the dust collection chamber. An object of the present invention is to provide a compact vacuum cleaner that is easy to use by preventing the dust filter from being clogged with dust.
[0009]
According to the present invention, the object is to provide a vacuum cleaner main body having an electric blower and a dust collecting portion, a suction body having an opening facing the surface to be cleaned and communicating with the dust collecting portion, and the suction mouth. Handle to manipulate the body Part When The hose body connecting the handle portion and the main body of the vacuum cleaner Than the handle part Said An electric blower and a dust collecting part are also arranged on the mouthpiece side, and the handle part and the hose When the body is separated, dust is collected in the dust collection part on the mouthpiece side, and the handle part and the hose When the body is connected and the electric blower of the vacuum cleaner main body is activated, it is achieved by transferring the dust in the dust collecting part on the suction body side into the dust collecting part of the vacuum cleaner main body.
[0010]
Further, the object is to provide a suction body having an opening facing the surface to be cleaned, an electric blower and a dust collection chamber disposed in the suction body, and between the dust collection chamber and the electric blower. In the vacuum cleaner provided with the filter, this is achieved by making the filter into a mountain fold shape.
BEST MODE FOR CARRYING OUT THE INVENTION
[0011]
(First embodiment)
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described in detail with reference to the accompanying drawings.
[0012]
In FIG. 1, the external view of the vacuum cleaner which becomes the 1st Embodiment of this invention is shown. In FIG. 1, the code | symbol 101 is a vacuum cleaner main body, and the cord reel which winds up the dust collecting chamber 111, the electric blower 112, and the power cord which is not shown in the inside is incorporated. One end of a hose 102 is connected to the cleaner body 101 so as to communicate with the dust collection chamber 111. Reference numeral 103 denotes a hand operating unit, one end of which is connected to the other end of the hose 102. The hand operation unit 103 is provided with a hand switch 104 for switching the operation of the vacuum cleaner. Reference numeral 108 denotes a wireless signal transmission unit which transmits an operation signal to the wireless signal reception unit 109 (first wireless signal reception unit) of the cleaner body 101 in accordance with the operation of the hand switch 104. Reference numeral 105 denotes an extension tube, one end of which is connected to the other end of the hand operation unit 103. A plurality of (two in this embodiment) extension tubes 105 are connected, and a rechargeable secondary battery is detachably provided on the extension tube on the surface to be cleaned. Reference numeral 106 denotes a suction body, which is connected to the other end of the extension pipe 105. Reference numeral 106 a denotes an inlet cover that covers the upper portion of the inlet opening of the inlet body 101. Reference numeral 110 denotes a wireless signal receiving unit (second wireless signal receiving unit) provided in the mouthpiece 106, and receives a signal transmitted from the wireless signal transmitting unit 108 in response to the operation of the hand switch 104.
[0013]
FIG. 2 shows a top view of the suction body 106 according to the first embodiment of the present invention with the upper case and the suction cover removed. In FIG. 2, 201 is a rotary cleaning body, 202 is an electric motor for driving the rotary cleaning body 201, 203 is a circuit board, 204 is a driving belt, and 205 is an electric power for driving a blower. Movement , 206 is a blower, 207 is a dust collecting chamber removable from the suction body 106, 208 is a filter, and 209 is a check valve.
[0014]
In this embodiment, the vacuum cleaner provided with the cleaner main body 101 and the suction body 106 is configured as follows. That is, the first electric blower 112 and the dust collection chamber 111 are provided on the cleaner body 101 side. A second electric blower (electric motor 205, blower 206) and a dust collection chamber 207 are provided on the suction body 106 side. And mouthpiece 10 6 is separated from the vacuum cleaner body 101 so that it can be used independently. In addition, when the suction body 106 is used by being connected to the cleaner body 101, the dust passage 207 on the suction body 101 side and the dust collection chamber 111 on the cleaner body side can transfer dust ( The extension pipe 105 and the hose body 102) are connected, and the electric blower 112 provided on the cleaner body 101 side is connected to the cleaner body 101 side from the dust collection chamber 207 on the suction body 106 side. dust It is configured so that dust can be conveyed to the chamber 111.
[0015]
FIG. 3 shows a usage pattern of the vacuum cleaner according to the first embodiment of the present invention when it is cordless. On the suction body 106 side, only the extension pipe 105 is connected (provided) to the suction body 106a. That is, the suction body 106 is not connected to the cleaner body 101 and the hose body 102, and the suction body 106 is connected. The extension pipe 105 connected to the hose body 102 (see FIG. 1) can be used by being separated. A handle grip 103 for operating the suction body 106 is provided in the middle of the air passage connecting the suction body 106 side and the cleaner body 101 side (see FIG. 1). In the usage form, the suction body 106 side includes the handle grip 103 and is separated from the cleaner body 101 side. In the present embodiment, the air passage connecting the suction body 106 side and the cleaner body 101 side is composed of the extension pipe 105 and the hose body 102, and the handle grip 103 is provided on the extension pipe 105 side. (See FIG. 1). Further, in the present embodiment, the handle grip 103 is configured separately from the extension pipe 105, can be freely disconnected from and connected to the extension pipe 105, and for connecting the extension pipe 105 and the hose body 102. It has an air passage inside. Reference numeral 207 denotes a dust collection chamber that is detachably attached to the suction body 106.
[0016]
FIG. 4 shows a state in which the vacuum cleaner according to the first embodiment of the present invention is housed. In FIG. 4, 401 is a charging stand for charging the rechargeable battery 107.
[0017]
FIG. 5 shows a block diagram of the control circuit of the cleaner body. 501 is a microprocessing unit (hereinafter simply abbreviated as “microcomputer”) for controlling the main body control circuit, 502 is an infrared photodiode, 503 is a receiving unit for converting a signal received by the infrared photodiode 502 into a digital code, and 504 is a suction unit. An electric blower that generates force, 505 is a drive circuit of the electric blower 504, 506 is a DC power supply circuit, and 507 is an AC power supply.
[0018]
FIG. 6 shows a block diagram of the handle portion control circuit. 601 is a microcomputer that controls the control circuit of the handle unit, 602 is a battery, 603 is a switch, 604 is an infrared light emitting diode, 605 is a transistor that drives the infrared light emitting diode 604, and 606 is a hose 102 connected to the handle unit 103. A switch to which contacts are sometimes connected.
[0019]
FIG. 7 shows a block diagram of the mouthpiece control circuit. 701 is a microcomputer that controls the control circuit of the suction body, 702 is an infrared photodiode, 703 is a receiving unit that converts a signal received by the infrared photodiode 702 into a digital code, 704 is an electric blower that generates a suction force, and 705 is a rotation An electric motor for driving the cleaning body, 706 is a driving circuit for the electric blower 704, 707 is a driving circuit for the electric motor 705, and 708 is a battery.
[0020]
Next, the operation of the first embodiment of the present invention whose configuration has been described in detail above will be described.
[0021]
(1) When using a cordless vacuum cleaner
When the user of the vacuum cleaner uses the vacuum cleaner of the first embodiment as a cordless vacuum cleaner, the hose 102 is removed from the handle portion and used as shown in FIG. At this time, when the user of the cleaner presses the switch 104 (FIG. 6 603) near the handle portion, the microcomputer 601 detects this. Further, the switch 606 detects that the hose is not connected, and generates a signal code according to the pressed switch. Next, the infrared light emitting diode 604 is caused to emit light, and the signal code is emitted as an infrared signal. Since the infrared light emitting diode is oriented substantially vertically upward in a normal use state, the infrared light radiated upward hits the ceiling of the room and is reflected to reach the infrared photodiode 110 (FIG. 7 702) of the mouthpiece 106. . Here, it is converted into a digital code by the receiving unit 703 and input to the microcomputer 701. The microcomputer 701 controls the drive circuit 706 and the drive circuit 707 according to this signal code, and operates the electric blower 704 (FIGS. 2 and 205) and the electric motor 705 (FIG. 2).
[0022]
The dust scraped up by the rotary cleaning body 201 is sucked into the dust collection chamber 207 by the suction force generated by the blower 206, separated by the filter 208, and collected in the dust collection chamber 207. Then, after the motor 205 is cooled, the clean air is exhausted out of the suction body (arrow 210 in FIG. 2). At this time, since the dust collection chamber 207 has a negative pressure, the check valve 209 is closed. The check valve 209 is preferably provided with a biasing force in the closing direction so that the check valve 209 does not open when the electric backflow fan 704 (FIGS. 2 and 205) is stopped. This urging force may be realized by providing an elastic member such as a spring, or may be realized by configuring the check valve 209 itself with a deformable elastic member.
[0023]
As shown in FIG. 3, the dust collected in this way can be easily discarded into a trash box or the like by removing the dust collection chamber 207 from the suction body 106. Further, when the dust collection chamber 207 is made of, for example, a transparent resin, it is possible to easily check the state of dust accumulation from the outside. Further, the rechargeable battery 107 is configured to be detachable from the extension tube 105, whereby the rechargeable battery can be easily replaced.
[0024]
Further, as shown in FIG. 4 above, since the stand 401 at the time of storage also serves as a charging stand, the rechargeable battery 107 can be automatically recharged at the time of storage.
[0025]
(2) AC cleaner
When the user of the vacuum cleaner uses the vacuum cleaner of the first embodiment as an AC vacuum cleaner, the hose 102 is connected to the handle portion as shown in FIG. At this time, when the user of the cleaner presses the switch 104 (FIG. 6 603) near the handle portion, the microcomputer 601 detects this. Further, the switch 606 (see FIG. 6) detects that the hose is connected, and generates a signal code according to the pressed switch. Next, the infrared light emitting diode 604 is caused to emit light, and the signal code is emitted as an infrared signal. Since the infrared light emitting diode is oriented substantially vertically upward in a normal use state, the infrared light radiated upward hits the ceiling of the room and is reflected to reach the infrared photodiode 110 (702) of the mouthpiece 106. Here, it is converted into a digital code by the receiving unit 703 and input to the microcomputer 701. The microcomputer 701 controls only the drive circuit 707 in accordance with this signal code, and operates the electric motor 705 (FIG. 2 202).
[0026]
Further, the emitted infrared light hits the ceiling of the room and is reflected, and reaches the infrared photodiode 109 (FIG. 5 502) of the cleaner body 101. Here, it is converted into a digital code by the receiving unit 503 and input to the microcomputer 501. The microcomputer 501 controls the drive circuit 505 according to this signal code, and operates the electric blower 504.
[0027]
The suction force generated by the electric blower 504 reaches the dust collection chamber 207 through the hose 102 and the extension pipe 105, and sucks up dust collected by the rotary cleaning body 201 into the dust collection portion of the cleaner body. (Arrow 211 in FIG. 2). At this time, the check valve 209 is opened by the suction force generated by the electric blower 504, and the dust accumulated in the dust collection chamber 207 at the time of cordless cleaning is simultaneously sucked into the dust collection portion of the cleaner body. Further, the air flowing backward from the blower 206 peels off the dust adhering to the filter 208 and is sucked into the dust collecting part of the cleaner body.
[0028]
As described above, according to the present embodiment, the cleaning function can be realized only by the portion on the suction side from the handle portion, and further, by attaching the hose, it can be cleaned for a long time by the AC power source, That is, two types of cleaning methods can be provided in accordance with the user's application, and there is an effect of improving usability.
[0029]
In addition, since dust in the dust collection chamber of the cordless vacuum cleaner can be sucked into the main body of the vacuum cleaner, there is an effect that the number of times of waste disposal can be reduced.
[0030]
In addition, since an optical remote controller is used, no wiring is required in the hose extension pipe, so that the vacuum cleaner can be reduced in weight and the cost can be reduced.
[0031]
Further, when the suction body 106 side is separated from the cleaner body 101 side, an air passage on the suction body 106 side (formed in the handgrip 103 is formed at the connection portion with the cleaner body 101 on the suction body 106 side. It is preferable to provide a lid for closing the air passage or the air passage formed in the extension pipe 105. As a result, when the suction body 106 side is separated from the cleaner main body 101, even if dust cannot be conveyed to the cleaner main body 101 side and remains in the extension pipe 105, this dust is also transferred to the extension pipe 105. Can be trapped in.
[0032]
(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[0033]
In FIG. 8, the external view of the vacuum cleaner by this embodiment is shown. In FIG. 8, 801 is a vacuum cleaner body, 802 is a hose body, 803 is a handle grip, 804 is a hand switch, 805 is an extension tube, 806 is a suction body, and 807 is a dust collection chamber that can be detached from the extension tube 805. It is. An electric blower 809 that generates suction force and a dust collection chamber 808 are provided on the suction side of the electric blower inside the main body casing that forms the outline of the main body of the vacuum cleaner.
[0034]
FIG. 9 shows a top view of the mouthpiece with the upper case and the mouthpiece cover removed in the vacuum cleaner according to the second embodiment of the present invention. In FIG. 9, 901 is a rotary cleaning body, 902 is an electric motor for driving the rotary cleaning body 901. , Reference numeral 903 denotes a circuit board, 904 denotes a drive belt, and 905 denotes a rechargeable rechargeable battery.
[0035]
FIG. 10 shows a sectional view of the extension pipe of the cleaner according to the second embodiment of the present invention. In FIG. 10, 1001 is a filter, 1002 and 1003 are check valves, 0 04 is a blower, 1 0 05 is blower 1 0 04 is an electric motor that drives 04.
[0036]
FIG. 11 shows a block diagram of the main body control circuit of the vacuum cleaner. 1101 is a microprocessing unit (hereinafter simply abbreviated as “microcomputer”) that controls the main body control circuit, 1102 is an electric blower that generates suction force, 1103 is a drive circuit of the electric blower 1102, 1104 is a DC power supply circuit, and 1105 is AC A power source 1106 is a contact on the hose 802 side.
[0037]
FIG. 12 shows a block diagram of the suction body control circuit. 1201 is a microcomputer for controlling the control circuit of the suction body, 1202 is an electric motor for driving the rotary cleaning body, 1203 and 1204 are switching circuits, 1205 is a battery, and 1206 is a contact on the extension pipe 805 side.
[0038]
FIG. 13 shows a block diagram of a control circuit of the handle portion. Reference numeral 1301 denotes a microcomputer that controls the control circuit of the handle portion, 1302 denotes a switch, 1303 denotes an electric blower that generates a suction force, and 1304 denotes a switch to which a contact is connected when the hose 802 is connected to the extension pipe 805.
[0039]
Next, the operation in the second embodiment of the present invention whose configuration has been described above will be described.
[0040]
(1) When using a cordless vacuum cleaner
When the user of the vacuum cleaner uses the vacuum cleaner of the second embodiment as a cordless vacuum cleaner, the hose 802 is removed from the extension pipe 805 and used. At this time, when the user of the cleaner presses the switch 804 (FIG. 13 1302) near the handle portion, the microcomputer 1301 detects this. Further, the switch 1304 detects that the hose is not connected, and controls the voltage of the signal line to a voltage according to the pressed switch.
[0041]
The microcomputer 701 of the mouthpiece control circuit detects a voltage change of the signal line, controls the switching circuit 1203 and the switching circuit 1204, and operates the electric blower 1303 (FIG. 11 1104, 1105) and the electric motor 1202 (902). .
[0042]
The dust scraped up by the rotary cleaning body 901 is sucked into the dust collection chamber 807 by the suction force generated by the blower 1104, separated by the filter 1101, and collected in the dust collection chamber. Then, after the motor 1105 is cooled, the clean air is exhausted out of the extension pipe (arrow 1106 in FIG. 11). At this time, since the dust collection chamber 807 has a negative pressure, the check valve 1003 is closed. As shown in FIG. 10, the dust collected in this way can be easily discarded into a trash box or the like by removing the dust collection chamber 807 from the extension tube. Further, the dust collection chamber 807 is made of, for example, a transparent resin, so that it is possible to easily check the dust accumulation from the outside.
[0043]
(2) AC cleaner
When the user of the vacuum cleaner uses the vacuum cleaner of the second embodiment as an AC vacuum cleaner, the hose 802 is connected to the extension pipe as shown in FIG. At this time, when the user of the vacuum cleaner presses the switch 804 (FIG. 132) near the handle portion, the microcomputer 1301 detects this. Further, the switch 1304 detects that the hose is connected, and controls the voltage of the signal line to a voltage according to the pressed switch.
[0044]
The microcomputer 1201 of the suction body control circuit detects the voltage change of the signal line, controls the switching circuit 1203 and the switching circuit 1204, and operates only the electric motor 1202 (FIG. 9 902).
[0045]
Furthermore, the microcomputer 1101 of the control circuit of the cleaner main body detects the voltage change of the signal line, controls the drive circuit 1103, and operates the electric blower 1102. The suction force generated by the electric blower 1102 passes through the hose 802 and the extension pipe 805, reaches the brush chamber, and sucks the dust scraped up by the rotary cleaning body 901 into the dust collecting part of the cleaner body. At this time, the dust collected in the dust collecting chamber 807 during the cordless cleaning is simultaneously sucked into the dust collecting portion of the cleaner body. Further, the air flowing backward from the blower 1004 peels off the dust adhering to the filter 1001, and the removed dust is also sucked into the dust collecting part of the cleaner body.
[0046]
As described above, according to the present embodiment, the cleaning function can be realized only on the suction side from the handle part, and further, by attaching a hose, it can be cleaned for a long time with an AC power source, for the user's use. In addition, two types of cleaning methods can be provided, and the usability is improved.
[0047]
In addition, since the dust in the dust collection chamber of the cordless vacuum cleaner can be sucked into the main body of the vacuum cleaner, there is an effect that the number of times of dust disposal can be reduced.
[0048]
In addition, since the power source of the brush driving motor can be supplied from the cleaner body during the AC operation, there is an effect that the cleaning operation can be performed for a long time regardless of the remaining amount of the rechargeable battery.
[0049]
Also, during cordless operation, the suction body can be removed and cleaned only by the extension tube.For example, the power of the cleaning brush drive motor on the desk or the like can be supplied from the main body of the cleaner. In addition, there is an effect that the cleaning operation can be performed for a long time.
[0050]
In each of the above-described embodiments, the main body of the cleaner (FIG. 1 101, FIG. 8801) is configured to be driven by an AC power source. Since a relatively large rechargeable battery can be mounted, a configuration in which the rechargeable battery is driven as a power source can be employed.
[0051]
(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. 3 and FIG. FIG. 14 is a top view of the suction body 106 in an example of the embodiment of the present invention with the upper case and the suction cover 106a removed.
[0052]
As shown in FIG. 3, the stick type vacuum cleaner is roughly composed of a suction body 106, an extension pipe 105, and a hand operation unit 103 that operates the suction body 106. In this embodiment, the hand operation unit 103 is configured separately from the extension tube 105 and can be freely disconnected from or connected to the extension tube 105. Reference numeral 207 denotes a dust collection chamber that is detachable from the suction body 106. The dust collection chamber is formed of a transparent or translucent member so that the amount of collected dust can be directly observed. Further, a part of the dust collection chamber 207 may be opened / closed or removed, and the collected dust may be removed.
[0053]
In FIG. 14, 201 is a rotary cleaning body, 202 is an electric motor for driving the rotary cleaning body 201, 203 is a circuit board, 204 is a drive belt, and 220 is an electric blower. The motor 205 is configured to drive the blower 206. Reference numeral 207 denotes a dust collection chamber that can be detached from the suction body 106, and 208 denotes a filter. Here, the air containing dust is The The dust flows into the dust collection chamber 207 from the lash chamber 222 and is separated into dust and air in the dust collection chamber 207.
[0054]
In the present embodiment, as shown in FIG. 14, an electric blower 220 is disposed in the suction body 106. The electric blower 220 is arranged so that the rotation shaft 223 of the electric blower 220 is parallel to the longitudinal direction of the opening 221 facing the surface to be cleaned, and the electric blower 220 is moved from the dust collection chamber 207 to the electric blower 220. An air passage 224 that communicates is provided. In the present embodiment, the center 224a of the inlet of the air passage 224 is disposed so as to be positioned closer to the brush chamber 222 than the central axis 207a of the dust collection chamber parallel to the longitudinal direction of the opening 221. There is.
[0055]
In the present invention, due to the above-described configuration, the air suddenly turns in the order from the brush chamber 222 to the dust collection chamber 207, the filter 208, and the air passage 224 (arrow A in FIG. 14). On the other hand, since dust has a higher density than air, it cannot turn as quickly as air. Therefore, due to the inertial force when it flows into the dust collection chamber 207, it flows to the anti-brush chamber side of the dust collection chamber 207 (arrow B in FIG. 14), and the dust is sequentially collected from the anti-brush chamber side of the dust collection chamber 207. Dust accumulates. Therefore, when dust is accumulated in the dust collection chamber 207, the air passage 224 communicating with the electric blower 220 can be prevented from increasing ventilation resistance due to clogging of dust. Moreover, clogging of the filter due to dust can be prevented. Furthermore, since the center 224a of the inlet of the air passage 224 is located closer to the brush chamber 222 than the central axis 207a of the dust collection chamber, the dust accumulation volume can be increased.
[0056]
Therefore, there is a feature that dust can be effectively accumulated and the dust collection chamber 207 can be downsized. Further, since the increase in ventilation resistance can be prevented, even when dust is accumulated in the dust collection chamber 207, the air flow of the electric blower 220 is sufficiently ensured, so that high dust collection can be achieved.
[0057]
Here, even if the inlet side 224b of the air passage 224 communicating with the electric blower 220 from the dust collection chamber 207 is disposed closer to the brush chamber 222 than the outlet side 224c, the dust collection chamber can be made more efficient. Can be achieved.
[0058]
Further, the central axis (207c) of the inlet opening 253a of the dust collection chamber 207 is set on the counter-electric blower side (air) as compared to the central axis (207b) of the dust collection chamber 207 that is orthogonal to the rotating shaft 223 of the electric blower 220. When the dust is accumulated in the dust collecting chamber 207, the air passage 224 communicating with the electric blower 220 is ventilated by the clogging of dust. It can be prevented or at least reduced from increasing resistance.
[0059]
The dust collection chamber 207 is configured to be detachable from the suction body 106, and the filter 208 can be removed from the dust collection chamber 207 so that dust can be easily discarded from the dust collection chamber 207.
[0060]
(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIG. FIG. 15 corresponds to another example of the embodiment shown in FIG. 14, and is a top view in a state where the upper case and the suction cover of the suction body 106 are removed. In this example, as shown in FIG. 15, in the suction body 106, the electric blower 220 has a rotating shaft 223 of the electric blower 220 parallel to the longitudinal direction of the opening 221 facing the surface to be cleaned. The rectifying plate 240 is provided so as to protrude into the dust collection chamber 207 so as to continue from the dust collection chamber 207 to the inlet side of the air passage 224 communicating with the electric blower 223. .
[0061]
In the case of the fourth embodiment, due to the above-described configuration, the air flows in a sudden direction from the brush chamber 222 to the dust collection chamber 207, the filter 208, and the air passage 224 (arrow A in FIG. 15). On the other hand, the density of dust is larger than that of air, and it cannot be rapidly turned like air. Due to the inertial force when it flows into the dust collection chamber 207, the dust moves toward the anti-brush chamber side of the dust collection chamber 207. Flows (arrow B in the figure). And dust accumulates in order from the anti-brush chamber side of the dust collection chamber 207. At this time, the accumulated dust rises due to the secondary flow of air generated on the anti-brush side or the like, but is prevented from flowing into the air passage 224 by the rectifying plate 240.
[0062]
Accordingly, when dust is accumulated in the dust collection chamber 207, the air passage 224 communicating with the electric blower 220 can reduce an increase in ventilation resistance due to dust clogging. As a result, dust can be effectively accumulated even in the small dust collection chamber 207, and an increase in ventilation resistance can be prevented or at least reduced, so that dust has accumulated in the dust collection chamber 207. Even in the state, the air volume by the electric blower 220 is sufficiently secured, and it becomes possible to achieve high dust collection.
[0063]
Note that the filter 208 may be arranged in such a manner that the inlet side of the air passage 224 protrudes into the dust collection chamber 207. Further, by arranging the inlet opening 253a of the dust collection chamber 207 on the side opposite to the rotation axis 223 of the electric blower 220 and the central axis of the dust collection chamber 207, dust is collected. When accumulating in the dust chamber 207, the air passage 224 communicating with the electric blower 220 can be prevented or at least reduced from an increase in ventilation resistance due to dust clogging.
[0064]
The dust collection chamber 207 is configured to be detachable from the suction body 106. Therefore, the filter 208 can be removed from the dust collection chamber 207, and dust can be easily discarded from the dust collection chamber 207.
[0065]
FIGS. 16A and 16B show a modified example of the mounting structure of the rectifying plate 240.
[0066]
First, FIG. 16 (A) shows the structure when the rectifying plate 240 is attached with the air passage 224 extended (b1 = b2). This baffle plate may be prepared separately and attached, and in that case, it can also be formed integrally with the air flow path. 16B is a modification of the case shown in FIG. 15, and the length of the baffle plate protruding into the dust collecting chamber at a right angle is set to b1> b2. There are features. In this case, the resistance is made as small as possible with respect to the air flow A in FIG. Further, the resistance is increased on the side where the dust from the dust collection portion of the anti-suction port flows into the air passage. Thereby, air resistance can be reduced and the inflow resistance to the air flow path with respect to dust can be increased. In FIG. 16A, the same effect as in FIG. 16B can be expected by setting b1> b2.
[0067]
(Fifth embodiment)
Next, a fifth embodiment of the present invention In explain about. FIGS. 17A and 17B are diagrams showing the structure of the dust collection chamber 207 provided in the suction body 106. FIG. In FIG. 17A, an inlet opening 253a and an outlet opening 253b are provided on the wall 251 of the dust collection chamber 207 on the brush chamber 222 side and the wall 252 facing the wall, respectively. The inlet opening 253a provided on the side is provided on the floor side compared to the outlet opening 253b facing the inlet opening 253a. In FIG. 17A, when the distance of C and the distance of D are compared, C is smaller (C <D).
[0068]
According to the present invention, due to the above configuration, when the suction body 106 side is separated from the cleaner body 101 side and used independently, the electric blower 220 provided on the suction body 106 is provided by the small and rechargeable battery 107. Because it is driven, it cannot produce a large air volume or static pressure. Therefore, as shown in FIG. 17 (A), the inlet opening 253a provided on the brush chamber 222 side is arranged at a distance close to the floor surface, so that the dust sucked up from the floor surface even when the air volume is low is It can be conveyed to the dust collection chamber 207.
[0069]
Further, as shown in FIG. 17B, the inlet opening 253a provided on the brush chamber 222 side is provided at a position farther from the floor side than the outlet opening 253b facing the inlet opening 253a. (C> D). In this case, since the entrance opening 253a is located away from the floor surface, dust collected in the dust collection chamber 207 can be prevented from spilling from the entrance opening 253a.
[0070]
And when connecting and using the suction body 106 side to the cleaner body 101 side, since the electric blower 112 provided in the said cleaner body 101 can be driven using a commercial alternating current power supply, high air volume High pressure can be achieved. Therefore, when the suction body 106 is used by being connected to the cleaner body 101, the outlet opening 253b that opposes the inlet opening 253a is provided with a dust collection chamber 207 on the suction body 101 side and a dust collection chamber on the cleaner body side. 111 and the air passage (that is, the extension pipe 105 and the hose body 102) both of which are capable of conveying dust, clean the dust accumulated in the dust collecting chamber 207 on the suction body 106 side. It can be conveyed to the dust collection chamber 111 on the machine body 101 side. In particular, in the present embodiment, as shown in FIGS. 17A and 17B, the heights of the inlet opening 253a and the outlet opening 253b from the floor surface are shifted from each other. Thereby, the airflow in the dust collection chamber 207 is disturbed, dust collected in the dust collection chamber 207 rises, and the dust in the dust collection chamber 207 can be easily conveyed to the cleaner body side.
[0071]
The inlet opening 253a on the brush chamber 222 side of the dust collecting chamber 207 has a first valve body 209a that opens toward the inside of the dust collecting chamber 207, and the outlet opening 253b has a dust collecting port. By providing the valve body 209b that opens toward the outside of the chamber 207, it is difficult for dust to spill from the dust collection chamber 207, and when the suction body 106 side is connected to the cleaner body 101 side. The dust collection chamber 20 on the suction body 106 side 7 Can be transferred to the dust collecting chamber 111 side on the cleaner body 101 side.
[0072]
Further, by disposing the inlet opening 253a of the dust collection chamber 207 on the side opposite to the central axis of the dust collection chamber 207 perpendicular to the rotation shaft 223 of the electric blower 220, dust is collected. When accumulating in the chamber 207, the air passage 224 communicating with the electric blower 220 can be prevented from increasing ventilation resistance due to clogging of dust.
[0073]
Further, the filter 208 is disposed so as not to protrude toward the center of the dust collection chamber 207 from the line connecting the inlet opening 253a and the outlet opening 253b of the dust collection chamber 207. As a result, when the suction body 106 is used by being connected to the cleaner body 101, the dust flowing in from the inlet opening 253 a of the dust collection chamber 207 is not entangled with the filter 208, and the cleaner body 101 Can be transported to the dust collection chamber 111.
[0074]
These valve elements may be made of an elastic material such as rubber or a leaf spring made of plastic. Before Collection Dust chamber 207 Is configured to be detachable from the suction body 106, and the filter 208 can be removed from the dust collection chamber 207 so that dust can be easily discarded from the dust collection chamber 207.
[0075]
Moreover, as this dust collection chamber, the modification as shown to FIG. 16 (C) can be considered. That is, the center of the inlet opening 263a is shifted from the center of the outlet opening 253b. The inlet openings 253a and 263b are each provided with a curved portion such as R1 to R4 to prevent resistance to air flow and generation of vortex.
[0076]
(Sixth embodiment)
Next, referring to FIG. 18 attached, a sixth embodiment of the present invention. In explain about.
[0077]
In the present embodiment, as shown in FIG. 18, an openable / closable exhaust valve 255 is provided in the vicinity of the exhaust port 254 arranged on the downstream side of the electric blower 220 on the suction body 106 side. According to the above configuration according to the present invention, when the suction body 106 is separated from the cleaner body 101 and used independently, the exhaust E from the electric blower 220 provided on the suction body 106 is externally passed through the exhaust opening 254. Exhausted.
[0078]
On the other hand, when the suction body 106 side is connected to the cleaner body 101 and used, the exhaust valve 255 is completely set by the air F sucked by the electric blower 112 provided in the cleaner body 101. Or it is almost closed.
[0079]
If the exhaust valve 255 is provided so as to be completely closed, the flow rate of the air F from the suction port of the suction body 106 due to the backflow air G from the exhaust port 264 generated by the electric blower 112 provided in the cleaner body 101. Since the reduction can be prevented and the inside of the mouthpiece 106 can be kept at a high vacuum, high dust collection can be achieved. Further, it is possible to prevent the life of the electric motor 205 from being reduced due to the reverse rotation of the electric blower 220 provided in the suction body 106 due to the reverse flow from the exhaust port 254.
[0080]
Further, if the exhaust valve 255 is substantially closed so that only a small amount of air flow G flows backward, the electric fan 220 provided in the suction body 106 caused by the backward flow from the exhaust port 254 described above rotates backward. Therefore, it is possible to prevent the life of the electric motor 205 from being reduced. Furthermore, dust entangled with the filter 208 can be conveyed to the dust collection chamber 111 provided in the cleaner body 101, and the filter 208 can be self-refreshed. That is, the filter 208 can be refreshed by driving the electric blower 112 with an AC power source and using the cleaner. In addition, the reduction in the air volume at the suction port at the suction port 106 due to the backflow from the exhaust port 254 can be reduced, and the suction port 106 can be maintained at a high vacuum, so that high dust collection can be achieved.
[0081]
As described above, according to the present invention, air suddenly turns in the order from the brush chamber to the dust collection chamber, the filter, and the air passage, whereas dust has a higher density than air, so that it looks like air. That is, it accumulates in order from the anti-brush chamber side of the dust collection chamber due to the inertial force when flowing into the dust collection chamber. Therefore, when dust accumulates in the dust collection chamber, the air passage communicating with the electric blower can be prevented from increasing ventilation resistance due to clogging of dust. As a result, dust can be effectively accumulated even in a small dust collection chamber, and increase in ventilation resistance can be prevented, so that the air flow of the electric blower is secured even when dust is collected in the dust collection chamber, and high dust collection is achieved. Can be achieved.
[0082]
Moreover, there exists an effect which can refresh the filter by the side of a suction body by using the electric blower by the side of a cleaner body.
[0083]
(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described with reference to FIGS.
[0084]
19 is a longitudinal sectional view of the suction body 106, FIG. 20 is an external perspective view of the dust collection chamber 207 and the filter 208, and FIG. 21 is a longitudinal section of the dust collection chamber 207. FIG. In the present embodiment, the secondary battery 107 is provided in the suction joint 106b.
[0085]
As shown in FIG. 19, a dust collection chamber 207 is detachably provided in the suction body 106. The dust collection chamber 207 is configured to be separated from the suction body 106 toward the upper side of the suction body 106 (on the side opposite to the surface to be cleaned).
[0086]
The dust collection chamber 207 is provided with a filter 208 as shown in FIGS. The filter 208 includes a filter portion 301 that filters dust, and a seal member 302 that covers the outer periphery of the filter portion 301 and maintains airtightness with the dust collection chamber 207 when the filter 208 is attached to the dust collection chamber 207. Has been. Further, the filter portion 301 is formed in a mountain fold (wave shape) shape, and a mountain fold portion 301 a that protrudes inward from the outside of the dust collection chamber 207 and from the outside to the inside of the dust collection chamber 207. And a recessed valley fold 301b. In the present embodiment, by providing a mountain-folded (wave-shaped) filter, the area of the filter can be increased, thereby preventing the filter from being clogged in a short time.
[0087]
The dust collection chamber 207 is formed with an inlet opening 253a and an outlet opening 253b located above the inlet opening 253a. According to this, when used as a floor moving type vacuum cleaner shown in FIG. 8, the sucked dust enters from the entrance opening 253a, passes through the dust collection chamber 207, and exits 253b. The dust is collected in the dust collecting chamber 111 in the cleaner body 101. The inlet opening 253a is located inside the dust collection chamber 207 at the upstream side of the flow path of the dust collection chamber 207, and has an upper end fixed inside the dust collection chamber 207 by the first fixing means 303a. A first valve body 209a that opens toward the side is provided. In addition, the outlet opening 253b is located on the downstream side of the flow path of the dust collection chamber 207, is provided outside the dust collection chamber 207, and has a top end fixed by the second fixing means 303b. A second valve body 209b that opens toward the outside of the chamber 207 is provided.
[0088]
The first valve body 209a is a member such as rubber that is thin and relatively weak in rigidity so that it can be easily opened toward the inside of the dust collection chamber 207 even with a weak suction force such as when used as a stick-type vacuum cleaner. It is formed with. Furthermore, the first valve body 209a is disposed so as to be inclined with respect to the vertical line so that the lower end side is located inside the dust collection chamber 207 with respect to the upper end side. This is because the lower end side of the first valve body 209a is not in the dust collection chamber 207 due to its own weight even when the first valve body 209a has been used for a long time and has a wrinkle that is bent on the dust collection chamber 207 side. This is to prevent the dust in the dust collecting chamber 207 from spilling outside by returning to the outside and coming into contact with the contact portion 303c.
[0089]
On the other hand, the second valve body 209b is thicker than the first valve body 209a so that it does not easily open with a weak suction force such as when used as a stick-type vacuum cleaner, It is formed of a member such as rubber having high rigidity. Although not shown in FIG. 21, like the first valve body 209a, the second valve body 209b may also be arranged so as to be inclined with respect to the normal. In this case, the lower end portion side from the upper end portion side is preferably arranged so as to be inclined with respect to the vertical line so that the lower end side is located outside the dust collection chamber 207.
[0090]
As shown in FIG. 21, the filter portion 301 of the filter 208 is arranged so that the fold line of the mountain fold portion 301a is in the same direction as the flow path direction connecting the inlet opening 253a and the outlet opening 253b. ing. This is because dust collected in the dust collecting chamber 207 is also guided to the cleaner body 101 side when used as a floor moving type cleaner shown in FIG. The adhering dust is also removed. At this time, according to the fact that the fold line of the mountain fold part 301a is arranged so as to be in the same direction as the flow path direction connecting the inlet opening part 253a and the outlet opening part 263b, along this fold line. This is because the wind flows and the dust adhering to the filter 208 is also guided to the outlet opening 253b along this fold line, thereby improving the dust removal performance of the filter 208.
[0091]
Although it is desirable that the flow path direction in the dust collection chamber 207 and the fold line direction of the mountain fold part 301a be substantially parallel, the present invention is not limited to this. For example, as shown in FIG. 21, the outlet opening 253b may be positioned above the inlet opening 253a.
[0092]
Here, a center line 304 connects the center of the inlet opening 263a and the center of the outlet opening 253b. This center line 304 means that the air flowing in from the inlet opening 253a flows toward the outlet opening 253b along the direction of the center line 304. An angle formed by the center line 304 and the fold line of the mountain fold 301a is α. It is the best condition that the angle α is 0 °, that is, parallel. However, the angle α is not limited to this. For example, the air flow is not greatly disturbed ± 45. ° You may set arbitrarily in the range. In the present embodiment, the fold line of the mountain fold part 301a has been described, but it goes without saying that the same applies to the fold line of the valley fold part 301b. Further, the fold lines of the mountain folds 301a and the valley folds 301b do not necessarily have to be straight lines, and may be somewhat distorted. Furthermore, in the present embodiment, the fold line direction of the mountain fold part 301a and the valley fold part 301b is arranged in a direction substantially parallel to the surface to be cleaned. However, the present invention is not limited to this. It may be arbitrarily set in consideration of the relationship between 253a and the outlet opening 253b.
[0093]
Furthermore, as described in the fourth embodiment, when the air is allowed to flow backward with respect to the filter 208 when used as a floor moving type cleaner, the dust removal of the filter 208 can be further efficiently performed.
[0094]
In this embodiment, since the flow path direction in the dust collection chamber 207 and the fold line of the filter 208 are in the same direction, the dust removal performance of the filter 208 can be improved.
[0095]
As described above, in each embodiment of the present invention, the electric blower 112 on the cleaner body 101 side is driven by an AC power supply, but a rechargeable secondary battery is built in the cleaner body 101. However, the electric blower 112 may be driven by a DC power source using the secondary battery as a power source. In each embodiment of the present invention, the operation information from the hand switch 104 is transmitted from the wireless signal transmitting unit 108 to the wireless signal receiving unit 109 on the cleaner body 101 side by a wireless signal. Not limited to this, the hand operating unit 103 When clean up Machine A signal line (power supply line) may be provided in the hose 102 that connects the main body 101, and the hand operating unit 103 and the cleaner main body 101 may be electrically connected.
[0096]
Moreover, according to the cleaner which becomes this invention, according to a user's use, a different cleaning method can be provided and there exists an effect that the usability improves. Moreover, since the dust in the dust collection chamber on the suction body side can be sucked into the cleaner body side, there is an effect that the number of times of dust disposal can be reduced.
[0097]
Further, according to the present invention, the filter has an electric blower and a dust collection chamber disposed in the suction body, and a mountain-folded filter is disposed between the dust collection chamber and the electric blower. This increases the effective area of the filter and prevents the filter from being clogged in a short time.
[0098]
In addition, according to the present invention, the direction of the flow path in the dust collection chamber and the fold line of the filter are in the same direction, so that the dust removal performance of the filter can be improved.
[Brief description of the drawings]
[0099]
FIG. 1 is a perspective view showing an overall appearance of a vacuum cleaner according to a first embodiment of the present invention.
FIG. 2 is a top view of the suction body of the vacuum cleaner according to the first embodiment of the present invention with the upper case and the suction cover removed.
FIG. 3 is an external perspective view showing a cordless use form of the electric vacuum cleaner according to the first embodiment of the present invention.
FIG. 4 is an external view showing a state when the electric vacuum cleaner according to the first embodiment of the present invention is housed.
FIG. 5 is a block diagram of a main body control circuit of the vacuum cleaner according to the first embodiment of the present invention.
FIG. 6 is a block diagram of a handle portion control circuit of the vacuum cleaner according to the first embodiment of the present invention.
FIG. 7 is a block diagram of a mouthpiece control circuit for a vacuum cleaner according to the first embodiment of the present invention.
FIG. 8 is a perspective view showing the overall appearance of a vacuum cleaner according to a second embodiment of the present invention.
FIG. 9 is a top view of the suction body of the vacuum cleaner according to the second embodiment of the present invention with the upper case and the suction cover removed.
FIG. 10 is a sectional view of an extension pipe of a cleaner according to the second embodiment of the present invention.
FIG. 11 is a block diagram of a main body control circuit of a vacuum cleaner according to the second embodiment of the present invention.
FIG. 12 is a block diagram of a mouthpiece control circuit for a vacuum cleaner according to the second embodiment of the present invention.
FIG. 13 is a block diagram of a handle portion control circuit for a vacuum cleaner according to the second embodiment of the present invention.
FIG. 14 is a top view of a suction body of a vacuum cleaner according to a third embodiment of the present invention, with an upper case and a suction cover removed.
FIG. 15 is a top view of a suction body of a vacuum cleaner according to a fourth embodiment of the present invention, with an upper case and a suction cover removed.
FIG. 16 is a partially enlarged view showing a modification of the rectifying plate and dust collection chamber of the suction body in the vacuum cleaner according to the fourth embodiment of the present invention.
FIG. 17 is a view showing an example of the structure of a dust collection chamber provided in a suction body according to a fifth embodiment of the present invention.
FIG. 18 is a top view of the mouthpiece according to the sixth embodiment of the present invention with the upper case and the mouthpiece cover removed.
FIG. 19 is a longitudinal sectional view of a mouthpiece according to a seventh embodiment of the present invention.
FIG. 20 is an external perspective view of a dust collection chamber and a filter according to the seventh embodiment of the present invention.
FIG. 21 is a longitudinal sectional view of a dust collection chamber according to the seventh embodiment of the present invention.

Claims (5)

A vacuum cleaner body having a first electric blower and a dust collection chamber, a hose body having one end connected to the vacuum cleaner body and communicating with the dust collection chamber, and a handle having one end connected to the other end of the hose body And an extension pipe having one end connected to the other end of the handle part, and a mouthpiece having an opening connected to the other end of the extension pipe and facing the surface to be cleaned, the mouthpiece and the In a vacuum cleaner in which a dust collection chamber is connected by an air passage formed by the extension pipe , the handle portion, and the hose body,
The mouthpiece has a second electric blower and a dust collection chamber that collects dust by a suction force generated by the second electric blower, and the dust collection chamber of the mouthpiece includes the opening and the dust collection chamber. Between the air passage and
When the handle portion and the hose body are separated, the dust sucked by operating the second electric blower is collected in the dust collection chamber of the suction body,
When the handle portion and the hose body are connected and the first electric blower is operated, the dust sucked from the opening passes through the dust collection chamber of the suction body and passes through the air passage to the cleaning device. The dust collected in the dust collecting chamber of the machine main body, and the dust collected in the dust collecting chamber of the suction body is transferred to the dust collecting chamber of the cleaner main body through the air passage. Electric vacuum cleaner. In claim 1,
Vacuum cleaner, characterized in that the under flow side of the suction body dust collecting chamber, provided with a valve that opens when you are driving the first electric blower. In claim 1,
A vacuum cleaner comprising a filter between a dust collection chamber of the suction body and the second electric blower, wherein the filter is formed in a mountain fold shape. In claim 3,
The dust collection chamber of the suction body is provided with an inlet opening through which dust flows in and an outlet opening through which dust flows out,
The filter, vacuum cleaner, wherein a polygonal line direction of the mountain fold of the filter are disposed such that the flow path in the same direction as the direction connecting the the entering-mouth opening said outlet opening. In claim 4,
The vacuum cleaner is characterized in that the direction of the fold line of the mountain fold of the filter is set within a range of ± 45 ° with respect to a center line connecting the center of the inlet opening and the center of the outlet opening.

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