Dust collector

Abstract

The invention provides a dust collector which can restrain noise generated by the dust collector. The vacuum cleaner comprises: a main body housing; a drive unit that includes a blower fan and a motor that rotates the blower fan, and that causes a suction port that communicates with the inside of the main body case to generate suction force; and a first support member attached to at least a portion of the drive unit and having a main body support portion supported by the main body case. At least a portion of the outer peripheral surface of the main body support portion has an arc shape.

Description

Technical Field

[0001] The technology disclosed in this specification relates to a vacuum cleaner. Background Art

[0002] In the technical field related to vacuum cleaners, an electric vacuum cleaner as disclosed in Patent Document 1 is known.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 5-277048 Summary of the Invention

[0006] When noise is generated from a vacuum cleaner, it may cause discomfort to the user of the vacuum cleaner and people around.

[0007] The purpose of the technology disclosed in this specification is to suppress the noise generated from a vacuum cleaner.

[0008] This specification discloses a vacuum cleaner. The vacuum cleaner may include: a main body housing; a drive unit including a blower fan and a motor that rotates the blower fan and generates suction through a suction port connected to the inner side of the main body housing; and a first support member assembled to at least a portion of the drive unit and having a main body support portion supported by the main body housing. At least a portion of the outer peripheral surface of the main body support portion may be arc-shaped.

[0009] Effects of the Invention

[0010] According to the technology disclosed in this specification, it is possible to suppress the noise generated by a vacuum cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a perspective view showing the vacuum cleaner according to the embodiment when viewed from the left front.

[0012] Figure 2 It is a perspective view showing the vacuum cleaner according to the embodiment when viewed from the right rear.

[0013] Figure 3 It is a front view which shows the vacuum cleaner concerning embodiment.

[0014] Figure 4 It is a top view showing the vacuum cleaner according to the embodiment.

[0015] Figure 5 It is a cross-sectional view showing the vacuum cleaner according to the embodiment.

[0016] Figure 6 It is a cross-sectional view showing the vacuum cleaner according to the embodiment.

[0017] Figure 7 It is a cross-sectional view showing the vacuum cleaner according to the embodiment.

[0018] Figure 8 It is a perspective view showing a portion of the main body casing according to the embodiment as viewed from the left front.

[0019] Figure 9 It is a perspective view showing the battery mounting portion and the battery pack according to the embodiment as viewed from the left front.

[0020] Figure 10 It is a perspective view showing a main body portion according to the embodiment.

[0021] Figure 11 It is a perspective view showing a state in which the motor housing cover according to the embodiment is removed from the main body housing.

[0022] Figure 12 It is a perspective view showing a drive unit arranged in a motor room according to the embodiment.

[0023] Figure 13 It is a perspective view showing a state in which the drive unit according to the embodiment is removed from the motor chamber.

[0024] Figure 14 It is a front view showing a drive unit arranged in the motor room according to the embodiment.

[0025] Figure 15 It is a cross-sectional view showing a main body portion according to the embodiment.

[0026] Figure 16 It is a side view showing the drive unit according to the embodiment.

[0027] Figure 17 It is a cross-sectional view showing a drive unit according to the embodiment.

[0028] Figure 18 It is an exploded view showing the drive unit according to the embodiment.

[0029] Figure 19 It is an exploded perspective view showing the drive unit according to the embodiment as viewed from the right front.

[0030] Figure 20 It is a perspective view showing the first support member according to the embodiment as viewed from the right front.

[0031] Figure 21 It is a perspective view showing the first support member according to the embodiment as viewed from the left rear.

[0032] Figure 22 It is a cross-sectional view showing a first support member according to the embodiment.

[0033] Figure 23 This is a diagram showing the first supporting member according to the embodiment as viewed from below.

[0034] Figure 24 It is a perspective view showing the second support member according to the embodiment as viewed from the right front.

[0035] Figure 25 It is a perspective view showing the second support member according to the embodiment as seen from the left rear.

[0036] Figure 26 It is a cross-sectional view showing a second support member according to the embodiment.

[0037] Figure 27 It is a perspective cross-sectional view showing the lower portion of the vacuum cleaner according to the embodiment.

[0038] Figure 28 It is a cross-sectional view showing the lower portion of the vacuum cleaner according to the embodiment.

[0039] Description of Reference Numerals

[0040] 1…vacuum cleaner; 2…main body; 3…head; 4…connecting pipe; 5…handle; 6…foot pedal; 6A…claw; 7…height adjustment dial; 8…light; 9…battery assembly; 10…battery pack; 11…dust bag; 12…first exhaust port; 13…second exhaust port; 14…controller; 15…operating switch; 15A…drive switch; 15B…stop switch; 16…sound absorbing member; 17…support shaft; 20…main body casing; 20A…latch mechanism; 20B…right wall; 0C…support component; 20D…recess; 20E…arc rib; 21…collection chamber cover; 21A…latch toggle; 22…motor chamber cover; 22C…support component; 22D…recess; 22E…arc rib; 23…battery chamber; 24…collection chamber; 25…motor chamber; 25A…partitioning wall; 25B…flow path; 25C…passageway; 26…flow path; 26A…connecting port; 27…filter; 28…sponge sheet; 29…connecting pipe; 30…head housing; 31…buffer; 32…rotating Brush; 33…Side brush; 34…Connecting pipe; 35…Travel wheel; 36…Auxiliary wheel; 37…Suction port; 40…Drive unit; 41…Motor; 42…Blower fan; 43…Motor housing; 43A…Stator holder; 43B…Bearing holder; 43C…Bearing holder; 43D…Fan housing; 43E…Inlet port; 43F…Exhaust port; 44…Base; 45…Fan cover; 46…Sensor substrate; 47…Cooling fan; 48…Stator; 49…Rotor; 50…Rotor shaft ; 51…bearing; 52…bearing; 60…first supporting member; 61…drive unit supporting portion; 62…main body supporting portion; 62A…arc portion; 62B…long side portion; 62C…long side portion; 63…connecting portion; 64…opening; 65…reinforcing rib; 66…holding rib; 67…positioning rib; 80…second supporting member; 81…cylindrical portion; 82…conical portion; 83…opening; 84…inner ring portion; 85…outer ring portion; 86…supporting rib; 90…claw member; AX…rotating axis. DETAILED DESCRIPTION

[0041] In one or more embodiments, a vacuum cleaner may include: a main body housing; a drive unit including a blower fan and a motor for rotating the blower fan and generating a suction force at a suction port communicating with an inner side of the main body housing; and a first support member assembled to at least a portion of the drive unit and including a main body support portion supported by the main body housing. At least a portion of an outer peripheral surface of the main body support portion may be arc-shaped.

[0042] In the above configuration, the main body support portion has an easily bendable shape, thereby preventing vibration generated by the drive unit from being transmitted to the main body housing. This also reduces noise generated by the cleaner.

[0043] In one or more embodiments, the body support portion may have an opening.

[0044] In the above configuration, the main body support portion is more easily flexed by the opening, thereby preventing vibration generated by the drive unit from being transmitted to the main body housing. This also reduces noise generated by the cleaner.

[0045] In one or more embodiments, the main body support portion may be oval in shape. The main body support portion may include a retaining rib disposed at a central portion of an outer circumference of the main body support portion in the longitudinal direction of the main body support portion. The retaining rib may be retained by the main body housing.

[0046] In the above configuration, the contact area between the main body support portion and the main body housing is reduced, thereby preventing vibration generated by the drive unit from being transmitted to the main body housing. This reduces noise generated by the cleaner.

[0047] In one or more embodiments, the drive unit may be disposed in a motor chamber of the main body housing. The vacuum cleaner may include a motor chamber cover covering the motor chamber. The retaining rib may be sandwiched between the main body housing and the motor chamber cover.

[0048] In this configuration, the main body support is fixed to the main body housing and the motor housing. This reduces the contact area between the main body support, the main body housing, and the motor housing, thereby preventing vibrations generated by the drive unit from being transmitted to the main body housing and the motor housing. This also reduces noise generated by the vacuum cleaner.

[0049] In one or more embodiments, the main body support portion may be in an oval shape. The main body support portion may include a reinforcing rib provided at the opening in the longitudinal direction of the main body support portion.

[0050] In the above configuration, it is possible to suppress the main body support portion from being excessively bent.

[0051] In one or more embodiments, the first support member may include a drive unit support portion that supports the drive unit.

[0052] In the above configuration, the drive unit can be stably supported by the drive unit support portion of the first support member.

[0053] In one or more embodiments, the main body support portion and the drive unit support portion may be respectively arranged on one side and the other side of the rotation shaft of the motor.

[0054] In the above configuration, the first support member can be stably supported by the main body housing via the pair of main body support portions, and the drive unit can be stably supported by the pair of drive unit support portions.

[0055] In one or more embodiments, the first support member may include a connection portion connecting the drive unit support portion on one side and the drive unit support portion on the other side.

[0056] In the above configuration, the pair of drive unit support portions and the pair of main body support portions are integrated by the connecting portion.

[0057] In one or more embodiments, the drive unit may include a cooling fan for cooling the motor. Air flowing out of the cooling fan may be exhausted to the outside of the main housing through the opening.

[0058] In the above configuration, the high-temperature air flowing out of the cooling fan and contacting the motor does not stay inside the main body casing after passing through the opening of the main body support portion, but is discharged to the outside of the main body casing.

[0059] In one or more embodiments, the vacuum cleaner may include a second support member that is attached to at least a portion of the drive unit and supported by the main body casing.

[0060] In the above configuration, the drive unit is supported by the main housing via the first and second support members. The first and second support members can suppress the transmission of vibrations generated by the drive unit to the main housing. This can also suppress noise generated by the vacuum cleaner.

[0061] In one or more embodiments, the second support member may include at least one support rib provided on an outer peripheral surface of the second support member.

[0062] In the above configuration, the contact area between the second support member and the main body housing is reduced, thereby preventing vibration generated by the drive unit from being transmitted to the main body housing. This reduces noise generated by the cleaner.

[0063] In one or more embodiments, the supporting ribs may extend in a direction parallel to the rotation axis of the motor. The main housing may include arcuate ribs for supporting the supporting ribs. The arcuate ribs may extend in a direction perpendicular to the supporting ribs.

[0064] In the above configuration, the contact area between the second support member and the main body housing is reduced, thereby preventing vibration generated by the drive unit from being transmitted to the main body housing. This reduces noise generated by the cleaner.

[0065] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments. The constituent elements of the embodiments described below may be combined as appropriate. In addition, some constituent elements may not be used.

[0066] In the embodiment, the terms "front", "rear", "left", "right", "upper", and "lower" are used to describe the positional relationship of each part. These terms represent relative positions or directions with respect to the center of the cleaner 1.

[0067] [Vacuum cleaner]

[0068] Figure 1 It is a perspective view showing the vacuum cleaner 1 according to the embodiment when viewed from the left front. Figure 2 It is a perspective view showing the vacuum cleaner 1 according to the embodiment as seen from the right rear. Figure 3 It is a front view which shows the vacuum cleaner 1 concerning embodiment. Figure 4 It is a top view showing the vacuum cleaner 1 according to the embodiment.

[0069] Figure 5 is a cross-sectional view showing the vacuum cleaner 1 according to the embodiment, and corresponds to Figure 3 A-A line cross-sectional view. Figure 6 is a cross-sectional view showing the vacuum cleaner 1 according to the embodiment, and corresponds to Figure 3 BB line cross-sectional view. Figure 7 is a cross-sectional view showing the vacuum cleaner 1 according to the embodiment, and corresponds to Figure 4 C-C line cross-sectional view.

[0070] The vacuum cleaner 1 includes a main body 2 , a head 3 connected to a lower end of the main body 2 , a connecting pipe 4 connecting the main body 2 and the head 3 , and a handle 5 provided on an upper portion of the main body 2 .

[0071] In the embodiment, the vacuum cleaner 1 is an upright vacuum cleaner. An upright vacuum cleaner is a vacuum cleaner in which the main body 2 can stand upright relative to the head 3. The lower end of the main body 2 is rotatably connected to the head 3. The rotation axis of the main body 2 extends in the left-right direction. The main body 2 can rotate in a manner that changes between a state in which it stands upright relative to the head 3 and a state in which it is tilted relative to the head 3. A foot pedal 6 is provided between the main body 2 and the head 3. By operating the foot pedal 6, the user can switch between a state in which the main body 2 and the head 3 are fixed and a state in which the fixation is released.

[0072] The main body 2 includes a main body housing 20, a collection chamber cover 21, a motor chamber cover 22, a controller 14, a battery mounting portion 9, a drive unit 40, a first support member 60, and a second support member 80. The main body housing 20 is vertically elongated. The collection chamber cover 21 and the motor chamber cover 22 are each mounted on the front portion of the main body housing 20. The collection chamber cover 21 is positioned above the motor chamber cover 22. The motor chamber cover 22 has a first exhaust port 12 and a second exhaust port 13. The main body housing 20 has a second exhaust port 13.

[0073] The main body housing 20 includes a battery chamber 23 for arranging the battery mounting portion 9 , a collection chamber 24 for arranging the dust bag 11 , and a motor chamber 25 for arranging the drive unit 40 .

[0074] The battery chamber 23 is provided at the lower portion of the main body housing 20. An opening is provided at the left portion of the battery chamber 23. The battery pack 10 is mounted on the battery mounting portion 9. The battery pack 10 is a power source for the vacuum cleaner 1.

[0075] The collection chamber 24 is located above the motor chamber 25. The collection chamber cover 21 is located to cover the opening provided in front of the collection chamber 24. The motor chamber cover 22 is located to cover the opening provided in front of the motor chamber 25. The collection chamber 24 is defined by the main body housing 20 and the collection chamber cover 21. The motor chamber 25 is defined by the main body housing 20 and the motor chamber cover 22.

[0076] The collection chamber cover 21 opens and closes the front opening of the collection chamber 24. A claw is provided at the lower end of the collection chamber cover 21. A recess is provided on the lower side of the main housing 20 at the opening of the collection chamber 24. The claw of the collection chamber cover 21 is inserted into the recess of the main housing 20. A latch mechanism 20A is provided on the upper side of the opening of the collection chamber 24 at the main housing 20. The latch mechanism 20A fixes the upper part of the collection chamber cover 21 to the main housing 20. The collection chamber cover 21 has a latch shifter 21A operated by the user. The latch shifter 21A is provided at the front of the collection chamber cover 21. By operating the latch shifter 21A by the user to move it forward, the latch mechanism 20A releases the fixation of the main housing 20 and the collection chamber cover 21. As a result, the front opening of the collection chamber 24 is opened.

[0077] Figure 8 1 is a perspective view showing a portion of the main body housing 20 according to the embodiment as viewed from the left front. Figure 7 as well as Figure 8As shown, the main body 2 has: a flow path 26 connecting the collection chamber 24 and the motor chamber 25 inside the main body shell 20, a filter 27 arranged at the boundary position between the flow path 26 and the collection chamber 24, a sponge sheet 28 arranged in the flow path 26, and a connecting pipe 29 arranged at the upper position of the main body shell 20.

[0078] Flow path 26 is provided within main housing 20, to the right of collection chamber 24 and motor chamber 25. Flow path 26 extends vertically. The upper portion of flow path 26 is connected to collection chamber 24. The lower portion of flow path 26 is connected to motor chamber 25. The collection chamber 24 and motor chamber 25 are connected via flow path 26.

[0079] The filter 27 collects dust. The filter 27 is disposed on the right side of the collection chamber 24. An example of the filter 27 is a HEPA filter (High Efficiency Particulate Air Filter). The filter 27 is attachable to and detachable from the main body housing 20.

[0080] Sponge sheet 28 is disposed in the middle of flow path 26. In the vertical direction, sponge sheet 28 is disposed below filter 27. Sponge sheet 28 can prevent foreign matter from entering motor chamber 25 from collection chamber 24 if filter 27 falls off, for example.

[0081] The connecting pipe 29 is disposed so as to pass through the upper portion of the main body housing 20. The lower end portion of the connecting pipe 29 is disposed in the collection chamber 24. The dust bag 11 is connected to the lower end portion of the connecting pipe 29. Dust is collected in the dust bag 11.

[0082] The head 3 faces the surface to be cleaned and is movable on the surface to be cleaned. The head 3 includes a head housing 30 , a buffer 31 , a rotating brush 32 , side brushes 33 , a connecting pipe 34 , travel wheels 35 , auxiliary wheels 36 , and a suction port 37 .

[0083] The head case 30 is connected to the main body case 20. The suction port 37 is arranged at the front portion of the bottom of the head case 30. The suction port 37 sucks in dust on the surface to be cleaned.

[0084] The cushion member 31 is arranged to cover the front portion of the head case 30 . The cushion member 31 protects the head 3 .

[0085] The rotating brush 32 is positioned at the suction port 37. The rotating brush 32 is rotatable about a rotation axis extending in the horizontal direction. The rotating brush 32 rotates to collect dust on the surface being cleaned. A height adjustment dial 7 is located on the top of the head housing 30. This dial 7 is operated by the user. By operating the height adjustment dial 7, the height of the rotating brush 32 is adjusted.

[0086] The side brushes 33 are respectively arranged at the front portion of the left end portion and the front portion of the right end portion of the head housing 30 . The side brushes 33 collect dust on the cleaning target surface into the suction port 37 .

[0087] The connecting pipe 34 is connected to the connecting pipe 4 . The connecting pipe 34 conveys dust sucked in from the suction port 37 to the connecting pipe 4 . The front end of the connecting pipe 34 is connected to the suction port 37 . The rear end of the connecting pipe 34 is connected to the connecting pipe 4 .

[0088] The running wheels 35 and the auxiliary wheels 36 are respectively provided at the bottom of the head housing 30. There are two running wheels 35. The running wheels 35 can rotate around a rotation axis extending in the left-right direction. The head 3 moves by the rotation of the running wheels 35. There are two auxiliary wheels 36. The auxiliary wheels 36 are arranged at a position closer to the front than the running wheels 35. The auxiliary wheels 36 can rotate around a rotation axis extending in the left-right direction.

[0089] The head 3 includes a lamp 8 for illuminating the front of the head 3 . Two lamps 8 are provided on the front of the head 3 .

[0090] The connecting pipe 4 connects the main body 2 and the head 3. The connecting pipe 4 connects the connecting pipe 29 of the main body 2 and the connecting pipe 34 of the head 3. The connecting pipe 4 is arranged at the right rear of the main body 2 along the vertical direction.

[0091] The drive unit 40 includes a blower fan 42 and a motor 41 that rotates the blower fan 42. The motor 41 is the power source for the vacuum cleaner 1. The motor 41 is an electric motor. It is an inner rotor type DC brushless motor. The drive unit 40 generates suction force at the suction port 37 that communicates with the inside of the main housing 20.

[0092] The sound absorbing member 16 is disposed at least partially around the driving unit 40. As the sound absorbing member 16, a porous member made of synthetic resin can be exemplified.

[0093] The controller 14 controls the electric components mounted on the vacuum cleaner 1. The controller 14 controls at least the motor 41. The controller 14 controls the drive current supplied from the battery pack 10 to the motor 41. The controller 14 includes a substrate on which a plurality of electronic components are mounted. Examples of the electronic components mounted on the substrate include a processor such as a CPU (Central Processing Unit), non-volatile memory such as ROM (Read Only Memory) or a saver, volatile memory such as RAM (Random Access Memory), and resistors.

[0094] The handle portion 5 is connected to the upper portion of the main body housing 20. The handle portion 5 is gripped by the user. The user can move the vacuum cleaner 1 while gripping the handle portion 5. An operating switch 15 is provided on the handle portion 5. The user can operate the operating switch 15 while gripping the handle portion 5. The operating switch 15 is operated by the user to switch between driving and stopping the motor 41. The operating switch 15 includes: a driving switch 15A, which is operated to drive the motor 41; and a stop switch 15B, which is operated to stop the motor 41. By operating the driving switch 15A when the motor 41 is stopped, the motor 41 is started. By operating the driving switch 15A when the motor 41 is driven, the driving mode of the motor 41 is switched.

[0095] Figure 9 It is a perspective view showing the battery mounting portion 9 and the battery pack 10 according to the embodiment as viewed from the left front.

[0096] The battery chamber 23 is provided in the lower portion of the main body housing 20. The battery chamber 23 is arranged below the collection chamber 24. The battery chamber 23 is arranged above the motor chamber 25. The battery chamber 23 is arranged directly above the drive unit 40. An opening is provided on the left side of the battery chamber 23. The battery assembly portion 9 is arranged on the bottom surface of the battery chamber 23. The battery pack 10 is assembled to the battery assembly portion 9. When the battery pack 10 is assembled to the battery assembly portion 9, the entire battery pack 10 is accommodated in the battery chamber 23. The battery pack 10 does not protrude to the outside of the battery chamber 23.

[0097] In the embodiment, one battery assembly unit 9 is provided. When the battery pack 10 is mounted on the battery assembly unit 9, it supplies power to the vacuum cleaner 1. The battery pack 10 supplies driving current to the motor 41. The motor 41 is driven by the power from the battery pack 10. The controller 14 operates by the power from the battery pack 10. The battery pack 10 is a general-purpose battery that can be used as a power source for various electrical devices. The battery pack 10 can be used as a power source for an electric tool. The battery pack 10 can be used as a power source for electrical devices other than electric tools. The battery pack 10 can be used as a power source for a vacuum cleaner different from the vacuum cleaner 1 involved in the embodiment. The battery pack 10 includes a lithium-ion battery. The battery pack 10 includes a rechargeable secondary battery. The battery assembly unit 9 has a structure equivalent to that of a battery assembly unit for an electric tool.

[0098] The user of the vacuum cleaner 1 can attach the battery pack 10 to the battery mounting portion 9 and remove the battery pack 10 from the battery mounting portion 9. The battery mounting portion 9 includes a guide member and main body terminals. The battery pack 10 includes battery terminals. The guide member of the battery mounting portion 9 guides the battery pack 10. The main body terminals of the battery mounting portion 9 are connected to the battery terminals of the battery pack 10. The user can attach the battery pack 10 to the battery mounting portion 9 by inserting the battery pack 10 from the left side into the battery mounting portion 9 through the left opening of the battery chamber 23. The battery pack 10 is inserted into the battery mounting portion 9 while being guided by the guide member. By attaching the battery pack 10 to the battery mounting portion 9, the battery terminals of the battery pack 10 are electrically connected to the main body terminals of the battery mounting portion 9. The battery pack 10 includes a release button. The user of the vacuum cleaner 1 can remove the battery pack 10 from the battery mounting portion 9 by operating the fixation release button of the battery pack 10 to move the battery pack 10 to the right.

[0099] [Driver]

[0100] Figure 10 It is a perspective view showing the main body 2 according to the embodiment. Figure 11 It is a perspective view showing a state in which the motor chamber cover 22 according to the embodiment is removed from the main body housing 20 . Figure 12 It is a perspective view showing the drive unit 40 arranged in the motor chamber 25 according to the embodiment. Figure 13 It is a perspective view showing a state in which the drive unit 40 according to the embodiment is removed from the motor chamber 25 . Figure 14 It is a front view showing the drive unit 40 arranged in the motor chamber 25 according to the embodiment. Figure 15is a cross-sectional view showing the main body 2 according to the embodiment, and is equivalent to Figure 10 D-D line cross-sectional view. Figure 16 It is a side view showing the drive unit 40 according to the embodiment. Figure 17 It is a cross-sectional view showing the drive unit 40 according to the embodiment. Figure 18 It is an exploded view showing the drive unit 40 according to the embodiment. Figure 19 It is an exploded perspective view showing the drive unit 40 according to the embodiment as viewed from the right front. Figure 20 It is a perspective view showing the first support member 60 according to the embodiment as viewed from the right front. Figure 21 It is a perspective view showing the first support member 60 according to the embodiment as viewed from the left rear. Figure 22 It is a cross-sectional view showing the first support member 60 according to the embodiment. Figure 23 This is a diagram showing the first support member 60 according to the embodiment as viewed from below. Figure 24 It is a perspective view showing the second support member 80 according to the embodiment as viewed from the right front. Figure 25 It is a perspective view showing the second support member 80 according to the embodiment as viewed from the left rear. Figure 26 It is a cross-sectional view showing the second support member 80 according to the embodiment.

[0101] like Figure 10 As shown, the first exhaust port 12 is provided at the left side of the motor housing 22 . The second exhaust port 13 is provided at the left side of the lower portion of the main body housing 20 and at the left side of the lower portion of the motor housing 22 .

[0102] The drive unit 40 is arranged in the motor chamber 25. The motor chamber 25 is covered by the motor chamber cover 22. The drive unit 40 includes a motor 41, a blower fan 42, a motor housing 43, a base 44, a fan cover 45, a sensor substrate 46, and a cooling fan 47.

[0103] The drive unit 40 is an inner rotor type DC brushless motor. Figure 17 、 Figure 18 ,as well as Figure 19As shown, the drive unit 40 includes a stator 48, a rotor 49, and a rotor shaft 50. The stator 48 comprises a stator core having multiple teeth, an insulator fixed to the stator core, and coils wound around the stator core teeth via the insulator. The rotor 49 is positioned radially inward of the stator 48. The rotor 49 comprises a rotor core and multiple permanent magnets embedded in the rotor core. The rotor shaft 50 is fixed to the rotor 49 and positioned around the rotor shaft 50. The rotor shaft 50 is elongated in the left-right direction. The rotor 49 and the rotor shaft 50 rotate together about the rotation axis AX of the drive unit 40. The rotation axis AX extends in the left-right direction. The right end of the rotor shaft 50 is rotatably supported by a bearing 51. The left end of the rotor shaft 50 is rotatably supported by a bearing 52.

[0104] The sensor substrate 46 detects the rotational position of the rotor 49. It is fixed to the left of the insulator of the stator 48. The sensor substrate 46 includes a rotation detection element supported by a ring-shaped circuit board. The rotation detection element detects the position of the permanent magnets of the rotor 49 to detect the rotational position of the rotor 49. The controller 14 supplies a drive current to the coils of the stator 48 based on the detection data from the rotation detection element.

[0105] The blower fan 42 generates a suction force at the suction port 37. The blower fan 42 is fixed to the right end of the rotor shaft 50. As the rotor shaft 50 rotates, the blower fan 42 rotates together with the rotor shaft 50. The rotation of the blower fan 42 generates a suction force at the suction port 37.

[0106] The motor housing 43 houses the motor 41. The motor housing 43 includes a stator holding portion 43A that holds the stator 48, a bearing holding portion 43B that holds the bearing 51, a bearing holding portion 43C that holds the bearing 52, a fan housing portion 43D that houses the cooling fan 47, an air inlet 43E provided on the left side of the stator holding portion 43A, and an air outlet 43F provided below the fan housing portion 43D.

[0107] The base 44 is arranged around the right portion of the motor housing 43. The base 44 is fixed to the motor housing 43. The base 44 supports the fan cover 45.

[0108] The fan cover 45 is configured to cover at least a portion of the air supply fan 42. The fan cover 45 is connected to the base 44. At least a portion of the fan cover 45 is configured around the air supply fan 42. At least a portion of the fan cover 45 is configured to be further to the right than the air supply fan 42. The peripheral edge of the fan cover 45 is fixed to the base 44. The fan cover 45 has a fan air inlet. The fan air inlet is provided at the right end portion of the fan cover 45. The air supply fan 42 rotates, causing air to flow into the air supply fan 42 from the fan air inlet. The air that has passed through the air supply fan 42 flows out to the left side of the base 44 through the opening provided in the base 44.

[0109] The cooling fan 47 cools the motor 41. It is fixed to the rotor shaft 50 between the bearing 51 and the stator 48. The outer diameter of the cooling fan 47 is smaller than that of the air supply fan 42. Rotation of the rotor shaft 50 causes the cooling fan 47 to rotate along with the rotor shaft 50. The rotation of the cooling fan 47 causes air surrounding the motor housing 43 to flow into the motor housing 43 through the air inlet 43E. The air flowing into the motor housing 43 contacts the motor 41, cooling it. The air inside the motor housing 43 is discharged to the outside of the motor housing 43 through the air outlet 43F.

[0110] The first support member 60 is attached to at least a portion of the drive unit 40 . The first support member 60 is made of rubber and is supported by the main body housing 20 . At least a portion of the first support member 60 is sandwiched between the main body housing 20 and the motor housing cover 22 .

[0111] The first support member 60 includes a drive unit support portion 61 , a main body support portion 62 , a connecting portion 63 , an opening 64 , a reinforcing rib 65 , a holding rib 66 , and a positioning rib 67 .

[0112] The drive unit support 61 supports the drive unit 40. The drive unit support 61 is connected to the motor housing 43. The drive unit support 61 contacts the outer circumferential surface of the motor housing 43. A pair of drive unit support 61 is provided. The drive unit support 61 is positioned above and below the rotation axis AX of the motor 41, respectively.

[0113] The main body support portion 62 is supported by the main body housing 20. At least a portion of the outer peripheral surface of the main body support portion 62 is arc-shaped. A pair of main body support portions 62 are provided. The main body support portions 62 are respectively arranged above and below the rotation axis AX of the motor 41. In the radial direction of the rotation axis AX, the main body support portion 62 is arranged further outward than the drive unit support portion 61. The drive unit support portion 61 and the main body support portion 62 are integrally formed.

[0114] The main body support portion 62 includes a pair of arcuate portions 62A. One arcuate portion 62A is located at the front end of the main body support portion 62. The other arcuate portion 62A is located at the rear end of the main body support portion 62. The main body support portion 62 has a long side portion 62B and a long side portion 62C that connect the pair of arcuate portions 62A. The long side portion 62B connects the right end of one arcuate portion 62A with the right end of the other arcuate portion 62A. The long side portion 62C connects the left end of one arcuate portion 62A with the left end of the other arcuate portion 62A. The main body support portion 62 has an oblong shape that is long in the front-to-back direction. The longitudinal direction of the main body support portion 62 is the front-to-back direction. The main body support portion 62 has no corners. The arcuate portion 62A and the long side portion 62B are smoothly connected. The arcuate portion 62A and the long side portion 62C are smoothly connected. The main body support portion 62 has an easily bendable shape. The main body support portion 62 has a shape that exhibits flexibility. The main body support portion 62 is bendable at least in the left-right direction.

[0115] The connecting portion 63 connects the drive unit support portion 61 on the upper side of the rotation axis AX and the drive unit support portion 61 on the lower side of the rotation axis AX. The connecting portion 63 is connected to the outer peripheral surface of the motor housing 43. A pair of connecting portions 63 are provided. One connecting portion 63 connects the front end portion of the upper drive unit support portion 61 and the front end portion of the lower drive unit support portion 61. The other connecting portion 63 connects the rear end portion of the upper drive unit support portion 61 and the rear end portion of the lower drive unit support portion 61. The drive unit support portion 61 and the connecting portion 63 are integrated.

[0116] The main body support portion 62 is provided with an opening 64. The main body support portion 62 is substantially annular. The main body support portion 62 has an opening 64. The opening 64 is configured to penetrate the outer circumferential surface of the main body support portion 62 and the inner circumferential surface of the main body support portion 62. The opening 64 can also be configured to penetrate the outer circumferential surface of the main body support portion 62 and the inner circumferential surface of the drive unit support portion 61. The main body support portion 62 can be bent in a manner that reduces the opening 64. The main body support portion 62 can be bent in a manner that flattens in the left-right direction.

[0117] like Figure 17 As shown, the opening 64 provided on the main body support portion 62 below the rotation axis AX is connected to the exhaust port 43F of the motor housing 43. The air flowing out of the cooling fan 47 due to the rotation of the cooling fan 47 is discharged to the outside of the main body housing 20 through the exhaust port 43F and the opening 64. Figure 12As shown, the opening 64 provided in the lower main body support portion 62 is connected to the flow path 25B provided in the lower portion of the motor chamber 25. The main housing 20 includes a partition wall 25A that protrudes from the inner surface of the main housing 20 toward the motor chamber 25. Although not shown, the motor chamber cover 22 includes a partition wall that protrudes from the inner surface of the motor chamber cover 22 toward the motor chamber 25. By attaching the motor chamber cover 22 to the main housing 20, the partition wall 25A protruding from the inner surface of the main housing 20 and the partition wall protruding from the inner surface of the motor chamber cover 22 are connected. The flow path 25B is defined by the partition wall 25A protruding from the inner surface of the main housing 20 and the partition wall protruding from the inner surface of the motor chamber cover 22.

[0118] Flow path 25B is connected to the second exhaust port 13. Air flowing out of cooling fan 47 due to the rotation of cooling fan 47 flows through exhaust port 43F and opening 64 into flow path 25B. The air flowing through flow path 25B is exhausted outside main body 2 through second exhaust port 13. The air flowing out of cooling fan 47 is high-temperature air that comes into contact with motor 41. The high-temperature air that comes into contact with motor 41 does not remain in motor chamber 25 but is exhausted from motor chamber 25 through second exhaust port 13.

[0119] Reinforcing ribs 65 are provided in the opening 64. The reinforcing ribs 65 are connected to the long side 62B and the long side 62C, respectively. The reinforcing ribs 65 are provided to connect the long side 62B and the long side 62C. In the longitudinal direction of the main body support portion 62, that is, the front-to-back direction, the reinforcing ribs 65 are provided in the center of the opening 64. Two reinforcing ribs 65 are provided inside the opening 64 along the front-to-back direction. Alternatively, there may be only one reinforcing rib 65. The reinforcing ribs 65 can prevent the main body support portion 62 from being excessively bent or flattened.

[0120] The retaining rib 66 is retained by the main body housing 20. The retaining rib 66 is provided in the longitudinal direction of the main body support portion 62, that is, in the front-to-back direction, at the center of the outer peripheral surface of the main body support portion 62. Two retaining ribs 66 are provided on one main body support portion 62. One retaining rib 66 protrudes rightward from the outer peripheral surface of the long side portion 62B. One retaining rib 66 is provided in the front-to-back direction at the center of the long side portion 62B. The other retaining rib 66 protrudes leftward from the outer peripheral surface of the long side portion 62C. The other retaining rib 66 is provided in the front-to-back direction at the center of the long side portion 62C.

[0121] like Figure 13 as well as Figure 15As shown, the main housing 20 has: a support member 20C protruding from the inner surface of the main housing 20 toward the motor chamber 25. A pair of support members 20C are provided. The pair of support members 20C are arranged along the up-down direction. The support members 20C are respectively arranged at the upper and lower sides of the rotation axis AX. The support member 20C has a recess 20D. The motor chamber cover 22 has: a support member 22C protruding from the inner surface of the motor chamber cover 22 toward the motor chamber 25. A pair of support members 22C are provided. The pair of support members 22C are arranged along the up-down direction. The support members 22C are respectively arranged at the upper and lower sides of the rotation axis AX. The support member 22C has a recess 22D.

[0122] By attaching the motor housing cover 22 to the main body housing 20, the upper support member 20C of the rotating axis AX is positioned opposite the upper support member 22C of the rotating axis AX. By attaching the motor housing cover 22 to the main body housing 20, the lower support member 20C of the rotating axis AX is positioned opposite the lower support member 22C of the rotating axis AX. The upper main body support portion 62 is positioned between the recess 20D of the upper support member 20C and the recess 22D of the upper support member 22C. The lower main body support portion 62 is positioned between the recess 20D of the lower support member 20C and the recess 22D of the lower support member 22C. The main body support portion 62 may or may not be in contact with the support member 20C and the support member 22C, respectively.

[0123] By attaching the motor housing cover 22 to the main body housing 20, the retaining ribs 66 are sandwiched between the main body housing 20 and the motor housing cover 22. The retaining ribs 66 are sandwiched between the support members 20C and 22C. The upper retaining ribs 66 are sandwiched between the upper support members 20C and 22C. The lower retaining ribs 66 are sandwiched between the lower support members 20C and 22C.

[0124] The positioning rib 67 protrudes leftward from the left surface of the drive unit support portion 61. The positioning rib 67 is supported by the support member 20C and the support member 22C.

[0125] In the embodiment, the first support member 60 has a vertically symmetrical shape.

[0126] The second support member 80 is attached to at least a portion of the drive unit 40. The second support member 80 is made of rubber. The second support member 80 is supported by the main body housing 20. The second support member 80 contacts the right wall 20B of the main body housing 20 that faces the motor chamber 25.

[0127] The second support member 80 includes a cylindrical portion 81 , a tapered portion 82 , an opening 83 , an inner ring portion 84 , an outer ring portion 85 , and support ribs 86 .

[0128] The cylindrical portion 81 is disposed around the rotation axis AX and surrounds the outer peripheral surface of the fan cover 45 .

[0129] The tapered portion 82 is connected to the right end of the cylindrical portion 81. The outer diameter of the tapered portion 82 gradually decreases toward the right. The tapered portion 82 is arranged so as to cover the right surface of the fan cover 45.

[0130] The opening 83 is provided in the center portion of the tapered portion 82. The opening 83 coincides with at least a portion of the fan air inlet of the fan cover 45 in a plane perpendicular to the rotation axis AX.

[0131] The inner ring portion 84 is disposed around the opening 83. The inner ring portion 84 has an annular shape surrounding the rotation axis AX and protrudes rightward from the right surface of the tapered portion 82.

[0132] The outer ring portion 85 is disposed around the inner ring portion 84. The outer ring portion 85 has an annular shape surrounding the rotation axis AX and protrudes rightward from the right surface of the tapered portion 82.

[0133] The inner ring portion 84 and the outer ring portion 85 form a double ring. In the left-right direction, the position of the right end of the inner ring portion 84 is the same as the position of the right end of the outer ring portion 85. That is, the protrusion height of the inner ring portion 84 from the tapered portion 82 is the same as the protrusion height of the outer ring portion 85 from the tapered portion 82. The inner ring portion 84 and the outer ring portion 85 are each easily flexible. The inner ring portion 84 and the outer ring portion 85 are each in contact with the left surface of the right wall 20B facing the left. The inner ring portion 84 and the outer ring portion 85 are each in close contact with the left surface of the right wall 20B. The inner ring portion 84 and the outer ring portion 85 each function as a sealing portion that seals the boundary between the right wall 20B and the second support member 80.

[0134] Support ribs 86 are provided on the outer circumferential surface of the second support member 80. The support ribs 86 are provided so as to protrude radially outward from the outer circumferential surface of the cylindrical portion 81 relative to the rotation axis AX. At least one support rib 86 is provided. In the embodiment, the support ribs 86 are provided at equal intervals in the circumferential direction of the rotation axis AX. The support ribs 86 are provided so as to extend in a left-right direction parallel to the rotation axis AX.

[0135] The main housing 20 includes an arcuate rib 20E that supports the second support member 80. The motor housing cover 22 includes an arcuate rib 22E that supports the second support member 80. The arcuate ribs 20E and 22E each support the support rib 86. The arcuate ribs 20E and 22E are each arranged to extend in a vertical direction perpendicular to the support rib 86. When the motor housing 22 is attached to the main housing 20, the cylindrical portion 81 is sandwiched between the arcuate ribs 20E and 22E via the support rib 86.

[0136] A connection port 26A is provided on the right wall 20B, which contacts the inner ring portion 84 and the outer ring portion 85. The connection port 26A is connected to the flow path 26. The connection port 26A is an opening provided at the lower end of the flow path 26. Within a plane perpendicular to the rotation axis AX, the connection port 26A, at least a portion of the opening 83 of the second support member 80, and at least a portion of the fan air inlet of the fan cover 45 are aligned.

[0137] [Claw parts]

[0138] Figure 27 It is a perspective cross-sectional view showing the lower portion of the vacuum cleaner 1 according to the embodiment. Figure 28 1 is a cross-sectional view showing the lower portion of the vacuum cleaner 1 according to the embodiment. Figure 27 as well as Figure 28 As shown, the foot shifter 6 is rotatably supported on the support shaft 17. A claw member 90 is disposed around a portion of the support shaft 17. The claw portion 6A provided on the foot shifter 6 is hooked on the claw member 90. By operating the foot shifter 6, the claw member 90 rotates around the support shaft 17, thereby switching between a state in which the main body 2 and the head 3 are fixed and a state in which the fixation is released.

[0139] The claw member 90 is removable from the main housing 20. In other words, the claw member 90 is replaceable. The claw member 90 has a higher hardness than the main housing 20. The main housing 20 is made of, for example, ABS resin. The claw member 90 is made of, for example, fiberglass reinforced plastic. The higher hardness of the claw member 90 than the main housing 20 prolongs the life of the claw member 90. If the claw member 90 deteriorates or breaks, it can be replaced with a new one.

[0140] [Vacuum cleaner action]

[0141] When the user operates the drive switch 15A to start driving the motor 41, the blower fan 42 rotates. The rotation of the blower fan 42 generates suction force in the motor chamber 25. The suction force generated in the motor chamber 25 generates a suction force at the suction port 37 of the head 3. The suction force generated at the suction port 37 draws dust on the surface to be cleaned into the suction port 37 along with air.

[0142] The user can move the vacuum cleaner 1 while holding the handle 5. When the cleaning target surface includes a carpet, the rotating brush 32 rotates to collect dust on the carpet. The side brushes 33 collect dust on the cleaning target surface into the suction port 37.

[0143] Dust sucked into the suction port 37 is transported to the collection chamber 24 via the connecting pipe 34, the connecting pipe 4, and the connecting pipe 29. A dust bag 11 is located in the collection chamber 24. The dust bag 11 is connected to the connecting pipe 29 in the collection chamber 24. The dust transported to the collection chamber 24 is collected by the dust bag 11. The air passing through the dust bag 11 flows into the flow path 26 through the filter 27. Dust not completely captured by the dust bag 11 is captured by the filter 27. The air flowing into the flow path 26 passes through the sponge sheet 28 and then flows into the motor chamber 25 through the connecting port 26A. The air passing through the connecting port 26A flows into the air supply fan 42 through the opening 83 of the second support member 80 and the fan inlet of the fan cover 45. The air passing through the air supply fan 42 flows out to the left side of the base 44 through an opening provided in the base 44. The air flowing out to the left side of the base 44 is Figure 15 After passing through the passage 25C shown, the gas is discharged from the first exhaust port 12 to the outside of the main body 2. The passage 25C is provided in a partition wall disposed between the motor chamber 25 and the battery chamber 23.

[0144] The rotation of the blower fan 42 creates a negative pressure in the flow path 26, causing the second support member 80 to move slightly to the right, so that the inner ring portion 84 and the outer ring portion 85 are in close contact with the right wall 20B. Since the inner ring portion 84 and the outer ring portion 85 are in close contact with the right wall 20B, air leakage from the boundary between the right wall 20B and the second support member 80 can be suppressed.

[0145] [Effect]

[0146] As described above, in the embodiment, the vacuum cleaner 1 includes: a main body housing 20; a drive unit 40 including an air supply fan 42 and a motor 41 for rotating the air supply fan 42 and generating a suction force at the suction port 37 communicating with the inner side of the main body housing 20; and a first support member 60, which is mounted on at least a portion of the drive unit 40 and includes a main body support portion 62 supported by the main body housing 20. At least a portion of the outer peripheral surface of the main body support portion 62 is arc-shaped.

[0147] In the above configuration, the main body support portion 62 has an easily bendable shape, and thus can suppress the vibration generated in the drive unit 40 from being transmitted to the main body housing 20. This can suppress the noise generated from the cleaner 1.

[0148] In an embodiment, the body support 62 has an opening 64 .

[0149] In the above configuration, the main body support portion 62 is more easily flexed by the opening 64, thereby preventing vibration generated in the drive unit 40 from being transmitted to the main body housing 20. This can suppress noise generated by the cleaner 1.

[0150] In the embodiment, the main body support portion 62 has an oval shape and includes a holding rib 66 provided at the center of the outer peripheral surface of the main body support portion 62 in the longitudinal direction of the main body support portion 62. The holding rib 66 is held by the main body housing 20.

[0151] In the above configuration, the contact area between the main body support portion 62 and the main body housing 20 is reduced, thereby suppressing the vibration generated in the drive unit 40 from being transmitted to the main body housing 20. This can suppress the noise generated by the cleaner 1.

[0152] In the embodiment, the drive unit 40 is arranged in the motor chamber 25 of the main body housing 20. The vacuum cleaner 1 includes a motor chamber cover 22 that covers the motor chamber 25. The holding rib 66 is sandwiched between the main body housing 20 and the motor chamber cover 22.

[0153] In the above configuration, the main body support portion 62 is fixed to the main body housing 20 and the motor housing cover 22. The contact area between the main body support portion 62, the main body housing 20, and the motor housing cover 22 is reduced, thereby suppressing the transmission of vibrations generated by the drive unit 40 to the main body housing 20 and the motor housing cover 22. Consequently, noise generated by the vacuum cleaner 1 can be suppressed.

[0154] In the embodiment, the main body support portion 62 has an oval shape and includes a reinforcing rib 65 provided at the opening 64 in the longitudinal direction of the main body support portion 62 .

[0155] In the above-described configuration, it is possible to suppress the main body support portion 62 from being excessively bent.

[0156] In the embodiment, the first support member 60 includes a drive unit support portion 61 that supports the drive unit 40 .

[0157] In the above-described configuration, the drive unit 40 can be stably supported by the drive unit support portion 61 of the first support member 60 .

[0158] In the embodiment, the main body support portion 62 and the drive unit support portion 61 are respectively arranged at an upper side (one side) and a lower side (the other side) of the rotation axis AX of the motor 41 .

[0159] In the above-described configuration, the first support member 60 can be stably supported by the main body housing 20 via the pair of main body support portions 62 , and the drive unit 40 can be stably supported by the pair of drive unit support portions 61 .

[0160] In the embodiment, the first support member 60 includes a connection portion 63 that connects the upper drive unit support portion 61 on one side and the lower drive unit support portion 61 on the other side.

[0161] In the above-described configuration, the pair of drive unit support portions 61 and the pair of main body support portions 62 are integrated by the coupling portion 63 .

[0162] In the embodiment, the drive unit 40 includes a cooling fan 47 for cooling the motor 41. The air flowing out of the cooling fan 47 is discharged to the outside of the main body housing 20 through the opening 64.

[0163] In the above configuration, high-temperature air flowing out of the cooling fan 47 and contacting the motor 41 passes through the opening 64 of the main body support portion 62 and does not stay inside the main body housing 20 but is discharged outside the main body housing 20 .

[0164] In the embodiment, the vacuum cleaner 1 includes the second support member 80 that is attached to at least a portion of the drive unit 40 and supported by the main body housing 20 .

[0165] In the above configuration, the drive unit 40 is supported by the main body housing 20 via the first support member 60 and the second support member 80. The first support member 60 and the second support member 80 can suppress the transmission of vibration generated in the drive unit 40 to the main body housing 20. This can suppress noise generated by the vacuum cleaner 1.

[0166] In the embodiment, the second support member 80 includes at least one support rib 86 provided on the outer peripheral surface of the second support member 80 .

[0167] In the above configuration, the contact area between the second support member 80 and the main body housing 20 is reduced, thereby suppressing the vibration generated in the drive unit 40 from being transmitted to the main body housing 20. This can suppress the noise generated by the cleaner 1.

[0168] In the embodiment, the support rib 86 extends in a direction parallel to the rotation axis AX of the motor 41. The main body housing 20 includes an arcuate rib 20E that supports the support rib 86. The arcuate rib 20E extends in a direction perpendicular to the support rib 86.

[0169] In the above configuration, the contact area between the second support member 80 and the main body housing 20 is reduced, thereby suppressing the vibration generated in the drive unit 40 from being transmitted to the main body housing 20. This can suppress the noise generated by the cleaner 1.

[0170] [Other embodiments]

[0171] In the above embodiment, the main body support portion 62 is in an oval shape. However, the main body support portion 62 may be in a true circle or an ellipse.

[0172] In the above embodiment, the vacuum cleaner 1 is an upright vacuum cleaner. The vacuum cleaner 1 can be a handle vacuum cleaner, a horizontal vacuum cleaner, or a backpack vacuum cleaner.

Claims

1. A vacuum cleaner, characterized in that: The vacuum cleaner comprises: Main body shell; a driving unit including an air supply fan and a motor for rotating the air supply fan and causing a suction port communicating with the inner side of the main body housing to generate a suction force; as well as a first support member, which is mounted on at least a portion of the drive unit and has a main body support portion supported by the main body housing, At least a portion of the outer peripheral surface of the main body support portion is in an arc shape.

2. The vacuum cleaner according to claim 1, characterized in that: The main body support portion has an opening.

3. The vacuum cleaner according to claim 2, characterized in that: The main body support portion is in an oblong shape and has a holding rib provided at a central position of an outer peripheral surface of the main body support portion in a longitudinal direction of the main body support portion. The holding rib is held by the main body casing.

4. The vacuum cleaner according to claim 3, characterized in that: The drive unit is arranged in a motor room of the main housing. The vacuum cleaner includes: a motor chamber cover covering the motor chamber; The holding rib is sandwiched between the main body housing and the motor housing cover.

5. The vacuum cleaner according to claim 4, characterized in that: The main body support portion is in an oval shape and has a reinforcing rib provided at the opening in the longitudinal direction of the main body support portion.

6. The vacuum cleaner according to claim 5, characterized in that: The first support member includes a drive unit support portion that supports the drive unit.

7. The vacuum cleaner according to claim 6, characterized in that: The main body support portion and the drive unit support portion are respectively arranged at one side and the other side of the rotation shaft of the motor.

8. The vacuum cleaner according to claim 7, characterized in that: The first support member includes a connection portion connecting the drive unit support portion on the one side and the drive unit support portion on the other side.

9. The vacuum cleaner according to claim 8, characterized in that: The driving unit has a cooling fan for cooling the motor. The air flowing out from the cooling fan is discharged to the outside of the main body casing through the opening.

10. The vacuum cleaner according to claim 1, characterized in that: The vacuum cleaner includes a second support member that is attached to at least a portion of the drive unit and is supported by the main body casing.

11. The vacuum cleaner according to claim 10, characterized in that: The second support member includes at least one support rib provided on an outer peripheral surface of the second support member.

12. The vacuum cleaner according to claim 11, characterized in that: The supporting rib extends in a direction parallel to the rotation axis of the motor. The main body shell has: an arc rib supporting the supporting rib, The arcuate rib extends in a direction perpendicular to the supporting rib.

Images