dust collector

Abstract

This invention provides a dust collector capable of suppressing performance degradation. The dust collector includes: a main housing having a housing inlet; a motor assembly disposed inside the main housing, including a fan and a motor for rotating the fan and generating suction at the housing inlet; and a blockage suppression section for suppressing blockage at the housing inlet. The blockage suppression section includes: a wall portion disposed around at least a portion of the housing inlet, and a venting portion disposed on the wall portion.

Description

Technical Field

[0001] The technology disclosed in this specification relates to a dust collector. Background Technology

[0002] In the technical field of dust collectors, electric vacuum cleaners as disclosed in Patent Document 1 are known. In Patent Document 1, a bag filter is disposed inside the dust collection housing. Air passing through the bag filter passes through a vent located directly above the bag filter.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 01-209035 Summary of the Invention

[0006] In Patent Document 1, when the bag filter inflates, the vent may become blocked by the bag filter. When the vent is blocked, the suction performance of the electric vacuum cleaner may be reduced.

[0007] The purpose of the technology disclosed in this specification is to suppress the performance degradation of the dust collector.

[0008] This specification discloses a dust collector. The dust collector may include: a main housing having a housing suction inlet; a motor assembly disposed inside the main housing, including a fan and a motor for rotating the fan and generating suction at the housing suction inlet; and a blockage suppression section for suppressing blockage at the housing suction inlet. The blockage suppression section may include: a wall portion disposed around at least a portion of the housing suction inlet, and a venting portion disposed on the wall portion.

[0009] Invention Effects

[0010] According to the technology disclosed in this specification, the degradation of the dust collector's performance is suppressed. Attached Figure Description

[0011] Figure 1 This is a diagram showing the dust collector involved in the implementation method from the upper left front.

[0012] Figure 2 This is a diagram showing the dust collector involved in the implementation method from the upper right rear view.

[0013] Figure 3 This is a diagram showing the dust collector as viewed from the front in the implementation method.

[0014] Figure 4 This is a diagram showing the dust collector involved in the implementation method from the rear.

[0015] Figure 5This is a diagram showing the dust collector involved in the implementation method as viewed from the left.

[0016] Figure 6 This is a diagram showing the dust collector involved in the implementation method as viewed from the right.

[0017] Figure 7 This is a diagram showing the dust collector involved in the implementation method from above.

[0018] Figure 8 This is a longitudinal sectional view of the dust collector involved in the embodiment.

[0019] Figure 9 This is a longitudinal sectional view showing a portion of the dust collector involved in the embodiment.

[0020] Figure 10 This is a three-dimensional sectional view of the dust collector involved in the embodiment.

[0021] Figure 11 This is a three-dimensional sectional view of the dust collector involved in the embodiment.

[0022] Figure 12 This is a cross-sectional view of the dust collector involved in the implementation method.

[0023] Figure 13 This is an exploded perspective view showing the housing and main outer shell involved in the implementation method.

[0024] Figure 14 This is a diagram showing the housing involved in the implementation method from above.

[0025] Figure 15 This is an exploded perspective view showing the main body shell involved in the implementation method.

[0026] Figure 16 This is a diagram showing the enclosure involved in the implementation method from the upper left front view.

[0027] Figure 17 This is an exploded perspective view of the housing cover involved in the embodiment.

[0028] Figure 18 This is an exploded perspective view showing the main body shell and motor cover involved in the embodiment.

[0029] Figure 19 This is a diagram showing the battery pack being removed from the battery assembly and the filter unit being removed from the main housing, viewed from the upper right rear.

[0030] Figure 20 This is a diagram showing the battery pack being removed from the battery assembly and the filter unit being removed from the main housing, as viewed from the rear.

[0031] Figure 21 This is a diagram illustrating the filter unit involved in the implementation method.

[0032] Figure 22 This is a diagram showing the motor cover involved in the implementation method from the upper left front view.

[0033] Figure 23 This is a diagram showing the motor assembly and motor cover involved in the implementation method from the upper left front view.

[0034] Figure 24 This is a diagram showing the motor assembly and motor cover involved in the embodiment from below.

[0035] Figure 25 This is an exploded view of the motor assembly, motor cover, retaining member, motor support member, and cover support member involved in the embodiment, viewed from the upper left front.

[0036] Figure 26 This is an exploded view of the motor assembly, motor cover, retaining member, motor support member, and cover support member involved in the embodiment, viewed from the upper right rear.

[0037] Figure 27 It is a perspective sectional view showing the motor assembly, motor cover, retaining member, motor support member, and cover support member involved in the embodiment.

[0038] Figure 28 It is a perspective sectional view showing the motor assembly, motor cover, retaining member, motor support member, and cover support member involved in the embodiment.

[0039] Figure 29 This is a longitudinal end view showing the motor assembly, motor cover, retaining member, motor support member, and cover support member involved in the embodiment.

[0040] Figure 30 This is a diagram showing the main body shell involved in the implementation method from the lower right front view.

[0041] Figure 31 This is an exploded view of the main body casing and filter involved in the implementation method, viewed from the lower right front.

[0042] Figure 32 This is a diagram showing the filter installed on the main body housing according to the embodiment, viewed from below.

[0043] Figure 33 This is a diagram showing the housing intake port of the embodiment as viewed from below.

[0044] Figure 34This is a diagram showing the filter installed on the main body housing, as described in the embodiment, viewed from the lower right rear.

[0045] Figure 35 This is a diagram showing the housing intake port of the embodiment as viewed from the lower right rear.

[0046] Figure 36 This is a longitudinal sectional view showing a portion of the enclosure according to the embodiment.

[0047] Figure 37 This is a longitudinal sectional view showing a portion of the housing cover and the filter involved in the embodiment.

[0048] Figure 38 A diagram illustrating the relationship between the dust collection bag and the surrounding ribs involved in the embodiment.

[0049] Figure 39 The diagram is used to illustrate the ventilation section involved in other embodiments.

[0050] Explanation of reference numerals in the attached figures

[0051] 1…Dust collector; 2…Suction cylinder; 3…Box; 3A…Arc-shaped component; 4…Wheel; 4F…Free wheel; 4R…Fixed wheel; 5…Main body shell; 6…Latch; 7…Motor assembly; 8…Filter; 8A…Side; 8B…Lower surface; 8C…Opening; 9…Motor cover; 9A…Cylindrical part; 9B…Top plate; 9C…Hood exhaust port; 9D…Retaining part; 9D1…Retaining part; 9E…Rib; 9F…Protrusion; 10…Battery assembly; 10A…Guide rail; 10B…Terminal; 11…Battery pack; 12…Filter unit; 13…On / off switch; 14…Handle; 15…Controller; 16…Box suction port; 17…Dust bag; 18…Opening; 19…Box cover; 19A…Plate; 19B…Threaded boss 19C…Threaded opening; 19D…Retaining groove; 19E…Lower surface; 20…Fairing; 20A…Recess; 20B…Protruding rod; 20C…Battery recess; 20D…Rib; 20E…Retaining rib; 20F…First flow path forming rib; 20G…Second flow path forming rib; 20H…Recess; 21…Screw; 22…Hook; 23…Buffer; 23A…Outer peripheral surface; 23B…Lower surface; 23C…Upper surface; 24…Accessory receiving section (First accessory receiving section); 25…Accessory receiving section (Second accessory receiving section); 26…Housing intake; 27…Filter; 28…Filter housing; 28A…Frame section; 28B…Plate section; 28C…Hook section; 28D…Housing exhaust port; 29…Filter unit 30…Retaining component; 30A…Peripheral wall; 30B…Top; 30C…Protrusion; 30C1…Protrusion; 30D…Cover; 30E…Slot; 30F…Guide surface; 31…Motor support component; 31A…Cylindrical part; 31B…Rib; 32…Cover support component; 33…Rotation suppression component; 34…Fan; 35…Motor; 35A…Stator; 35B…Rotor; 35C…Rotor shaft; 35D…Bearing; 35E…Bearing; 36…Motor housing; 36A…Cylindrical part; 36B…Top plate; 36C…Annular part; 36D…Motor intake port; 36E…Motor exhaust port; 36F…Outer peripheral surface; 36G…Upper surface; 36H…Lower surface; 37…Blocking suppression part; 38…Surrounding rib (wall) 38A…plate-shaped part; 38B…lower end face; 39…recess (ventilation part); 39A…upper end face; 40…grid rib; 40A…linear rib; 40B…arc-shaped rib; 40C…lower end face; 41…fixing rib; 41A…hook part; 42…exhaust flow path; 43…sound-absorbing component; 61…support bar; 71…grounding part; 80…uninstalled prevention device; 81…uninstalled detection rod; 240…accessory storage part (first accessory storage part); 301…first surface; 302…second surface; 303…recess; 321…first cover support component; 321A…groove; 322…second cover support component; 322A…groove; 390…vent hole (ventilation part); AX…rotation axis; CL…centerline; Da…depth;Ha…protrusion amount; Hb…protrusion amount; J1…first axis; J2…second axis; Wa…width; θ…angle. Detailed Implementation

[0052] In one or more embodiments, the dust collector may include: a main housing having a housing inlet; a motor assembly disposed inside the main housing, including a fan and a motor for rotating the fan and generating suction at the housing inlet; and a blockage suppression section for suppressing blockage at the housing inlet. The blockage suppression section may include: a wall portion disposed around at least a portion of the housing inlet, and a venting portion disposed on the wall portion.

[0053] According to the above configuration, by providing a blockage suppression section, blockage of the housing suction inlet is suppressed. Therefore, the reduction in the suction performance of the dust collector is suppressed. The blockage suppression section has a wall portion disposed around at least a portion of the housing suction inlet. For example, even if the dust bag bulges, the dust bag will contact the wall portion, thereby suppressing the blockage of the housing suction inlet by the dust bag. By providing a venting section in the wall portion, the air passage to the housing suction inlet is ensured. Therefore, the reduction in the suction performance of the dust collector is suppressed.

[0054] In one or more embodiments, the wall portion may include: a surrounding rib configured to surround the housing intake and protrude toward the outside of the main housing.

[0055] Based on the above configuration, since the surrounding ribs are provided in a manner that surrounds the suction port of the outer casing, even if the dust collection bag bulges, it is possible to effectively prevent the suction port of the outer casing from being blocked by the dust collection bag.

[0056] In one or more embodiments, the vent may include a recess disposed in the surrounding rib.

[0057] Based on the above configuration, the ventilation path to the suction inlet of the outer casing is ensured by providing a recess in the wall. Therefore, the reduction in the suction performance of the dust collector is suppressed.

[0058] In one or more embodiments, the width of the recess may be greater than the depth of the recess.

[0059] Based on the above configuration, the air passage to the housing intake can be properly ensured.

[0060] In one or more embodiments, the dust collector may include: grid ribs disposed at the suction inlet of the outer casing.

[0061] Based on the above configuration, the lattice ribs suppress the passage of foreign objects through the intake port of the outer shell.

[0062] In one or more embodiments, the lattice ribs may protrude toward the outer side of the main body shell.

[0063] Based on the above configuration, the lattice ribs are formed to bulge outwards towards the main outer shell, allowing air to flow laterally through the ventilation channels between the lattice ribs. Thus, air can flow smoothly through the ventilation channels between the lattice ribs, i.e., air can flow smoothly into the outer shell intake.

[0064] In one or more embodiments, the protrusion of the surrounding rib is greater than the protrusion of the grid rib.

[0065] Based on the above configuration, since the protrusion of the surrounding ribs is greater than that of the grid ribs, even if the dust collection bag bulges, it can effectively prevent the outer casing inlet from being blocked by the dust collection bag.

[0066] In one or more embodiments, the dust collector may include a filter disposed at the suction inlet of the housing.

[0067] According to the above configuration, if the air drawn in through the housing intake contains dust, the dust is recovered through the filter. Therefore, the situation where dust-containing air is drawn in through the housing intake is suppressed.

[0068] In one or more embodiments, the filter may be configured to cover the housing inlet from the outside of the main housing.

[0069] Based on the above structure, the filter can effectively recover dust contained in the air.

[0070] In one or more embodiments, the wall portion includes a surrounding rib configured to surround the housing intake and project outward toward the main housing. A filter may also be disposed inside the surrounding rib.

[0071] Based on the above configuration, it is possible to effectively prevent the casing inlet from being blocked by the dust collection bag, thereby effectively preventing dust-containing air from being drawn into the casing inlet.

[0072] In one or more embodiments, the vent may overlap with at least a portion of the side of the filter.

[0073] According to the above configuration, air passing through the vent flows into the interior of the filter from the side and is then drawn in by the housing inlet. That is, by ensuring that at least a portion of the vent overlaps with the side of the filter, a ventilation path to the housing inlet is guaranteed.

[0074] In one or more embodiments, the shape of the filter may be larger than the shape of the housing inlet.

[0075] Based on the above configuration, it is possible to effectively prevent dust-containing air from being drawn in through the casing's intake port.

[0076] In one or more embodiments, the dust collector may include: a fixing rib disposed around at least a portion of the housing inlet and protruding toward the outside of the main housing for fixing the filter.

[0077] Based on the above configuration, the housing intake and filter are positioned.

[0078] In one or more embodiments, the dust collector may include: a housing for containing dust. The main outer shell may be connected to the housing such that its suction inlet faces the interior space of the housing.

[0079] Based on the above configuration, the reduction in suction performance from the housing to the main body shell is suppressed.

[0080] In one or more embodiments, a dust collection bag may be provided inside the housing. The blockage suppression unit can also suppress the situation where the housing intake is blocked by the dust collection bag.

[0081] Based on the above configuration, even if the dust collection bag inside the housing bulges, the reduction in the suction performance of the dust collector will be suppressed.

[0082] Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings; however, the present invention is not limited to these embodiments. The constituent elements of the embodiments described below can be appropriately combined. In addition, sometimes some constituent elements are not used.

[0083] In the implementation, the terms "front," "back," "left," "right," "up," and "down" are used to describe the positional relationships of the various parts. These terms indicate the relative position or direction with respect to the center of the dust collector 1.

[0084] [Dust Collector]

[0085] Figure 1 This is a diagram showing the dust collector 1 as described in the embodiment, viewed from the upper left front. Figure 2 This is a diagram showing the dust collector 1 as described in the embodiment, viewed from the upper right rear. Figure 3 This is a diagram showing the dust collector 1 as described in the embodiment from the front. Figure 4 This is a diagram showing the dust collector 1 as viewed from the rear in the embodiment. Figure 5 This is a diagram showing the dust collector 1 as described in the embodiment, viewed from the left. Figure 6 This is a diagram showing the dust collector 1 as described in the embodiment, viewed from the right. Figure 7This is a diagram showing the dust collector 1 as described in the embodiment from above. Figure 8 This is a longitudinal sectional view of the dust collector 1 according to the embodiment, equivalent to... Figure 7 The A-A line section is shown in the view. Figure 9 This is a longitudinal sectional view showing a portion of the dust collector 1 according to the embodiment, equivalent to... Figure 7 The B-B line section is shown in the view. Figure 10 This is a perspective sectional view of the dust collector 1 according to the embodiment, equivalent to... Figure 1 The C-C line section is shown in the view. Figure 11 This is a perspective sectional view of the dust collector 1 according to the embodiment, equivalent to... Figure 1 The D-D line section is shown in the view. Figure 12 This is a cross-sectional view of the dust collector 1 according to the embodiment, which is equivalent to viewing it from above. Figure 10 The image.

[0086] The dust collector 1 includes: a suction cylinder 2, a housing 3, wheels 4, a main body shell 5, a latch 6, a motor assembly 7, a filter 8, a motor cover 9, a battery assembly 10, a filter unit 12, a switch 13, a handle 14, and a controller 15.

[0087] The suction cylinder 2 draws in air. The suction cylinder 2 is located at the front of the housing 3. The suction cylinder 2 has a housing intake 16. The housing intake 16 is located at the front end of the suction cylinder 2. The housing intake 16 faces forward. The housing intake 16 is located at the front of the housing 3. The housing intake 16 extends through the housing 3 to the inside of the main outer casing 5. The suction cylinder 2 is connected to a dust collection hose (not shown).

[0088] The housing 3 contains the dust drawn in through the housing intake 16. After being drawn in along with air through the housing intake 16, the dust flows into the interior space of the housing 3. In this embodiment, a dust collection bag 17 is disposed inside the housing 3. The dust collection bag 17 is connected to the suction cylinder 2. The dust collection bag 17 is bag-shaped. The dust collection bag 17 can be made of paper or cloth. The dust drawn in through the housing intake 16 remains in the dust collection bag 17. Air can pass through the dust collection bag 17.

[0089] Wheels 4 are mounted on the lower part of the housing 3. The wheels 4 support the housing 3, enabling it to move. The wheels 4 include two free wheels 4F mounted on the front of the lower part of the housing 3, and two fixed wheels 4R mounted on the rear of the lower part of the housing 3. The housing 3 moves across the surface to be cleaned via the wheels 4. The user of the dust collector 1 can move it forward across the surface to be cleaned by pulling it forward using the dust collection hose.

[0090] The main outer shell 5 is supported on the housing 3. The main outer shell 5 is positioned above the housing 3. A latch 6 secures the housing 3 and the main outer shell 5. The latch 6 is located on the left and right sides of the housing 3.

[0091] Figure 13 This is an exploded perspective view showing the housing 3 and the main outer shell 5 according to the embodiment. The main outer shell 5 is detachable from the housing 3. The housing 3 and the main outer shell 5 are fixed by a latch 6. By releasing the fixation implemented by the latch 6, the main outer shell 5 and the housing 3 can be separated. The housing 3 has an opening 18. The opening 18 of the housing 3 is provided at the upper end of the housing 3. The main outer shell 5 is connected to the housing 3 in a manner that covers the opening 18 of the housing 3.

[0092] Figure 14 This is a top view of the housing 3 according to the embodiment. The dust bag 17 is disposed inside the housing 3. The housing 3 has a support strip 61 for mounting the base of the dust bag 17. The dust collector 1 includes an unmounting prevention device 80 to prevent the dust bag 17 from not being mounted on the support strip 61. The unmounting prevention device 80 prevents the main housing 5 from being connected to the housing 3 if the base of the dust bag 17 is not mounted on the support strip 61.

[0093] The misassembly prevention device 80 includes a misassembly detection rod 81. When the support rod 61 is rotated from the removed position to the installed position while the base of the dust bag 17 is mounted on it, the misassembly detection rod 81 will rotate from the misassembly position to the installed position. When the support rod 61 is not mounted on the base of the dust bag 17, even if the support rod 61 is rotated from the removed position to the installed position, the misassembly detection rod 81 will not rotate from the misassembly position to the installed position and will remain in the misassembly position. When the misassembly detection rod 81 is in the misassembly position, it prevents the main body shell 5 from connecting to the housing 3. Furthermore, an example of the misassembly prevention device 80 has been disclosed in Japanese Patent Application Publication No. 2021-053273.

[0094] The housing 3 has a grounding portion 71 for releasing static electricity retained in at least a portion of the dust collector 1. The lower end of the grounding portion 71 protrudes downward from the lower surface of the housing 3.

[0095] Figure 15This is an exploded perspective view showing the main body housing 5 according to the embodiment. The main body housing 5 includes a housing cover 19 and a fairing 20. The housing cover 19 is disposed above the housing 3. The housing cover 19 covers the opening 18 of the housing 3. The housing cover 19 covers the opening 18 provided at the upper end of the housing 3 from above. The fairing 20 is disposed above the housing cover 19. An internal space of the main body housing 5 is formed between the housing cover 19 and the fairing 20. The motor assembly 7 and the motor cover 9 are disposed inside the main body housing 5. An internal space of the main body housing 5 for accommodating the motor assembly 7 and the motor cover 9 is formed between the fairing 20 and the housing cover 19.

[0096] Figure 16 This is a diagram showing the housing 19 involved in the implementation method as viewed from the upper left front. Figure 17 This is an exploded perspective view showing the housing cover 19 according to the embodiment. The housing cover 19 has a plate portion 19A that covers the opening 18 of the housing 3, and a plurality of threaded boss portions 19B that protrude upward from the upper surface of the plate portion 19A. The housing cover 19 and the fairing 20 are fixed by a plurality of screws 21. A threaded opening 19C for inserting the shaft portion of the screw 21 is provided at the upper end of the threaded boss portion 19B. After the screw 21 is inserted into the interior of the threaded boss portion 19B from the lower end of the threaded boss portion 19B, it is inserted into the threaded hole provided in the fairing 20 through the threaded opening 19C.

[0097] The latch 6 is rotatably supported on the housing 3. The main body shell 5 has hook portions 22 for the latch 6 to be hooked. The hook portions 22 are respectively provided on the left and right sides of the housing cover 19.

[0098] A buffer 23 is provided in the housing cover 19. The buffer 23 is fixed to the periphery of the housing cover 19. The buffer 23 is annular. The buffer 23 is made of rubber. For example, the buffer 23 is fixed to the periphery of the housing cover 19 by embedding molding. When the dust collector 1 collides with an object around the dust collector 1, the buffer 23 mitigates the impact acting on the dust collector 1 and the object respectively. The buffer 23 is used to suppress damage to the object when the dust collector 1 collides with the object around the dust collector 1. The buffer 23 has: an outer peripheral surface 23A that can contact the object around the dust collector 1, a lower surface 23B that contacts the upper end of the housing 3, and an upper surface 23C that contacts the lower end of the shroud 20. The boundary between the housing cover 19 and the housing 3 is sealed by the contact between the lower surface 23B of the buffer 23 and the upper end of the housing 3. The upper surface 23C of the buffer 23 contacts the lower end of the shroud 20, sealing the boundary between the housing cover 19 and the shroud 20. The buffer 23 functions as an impact damping component, a sealing component that seals the boundary between the housing cover 19 and the housing 3, and a sealing component that seals the boundary between the housing cover 19 and the shroud 20. The buffer 23 suppresses air leakage from the interior space of the housing 3 to the surrounding area of ​​the dust collector 1. The buffer 23 also suppresses air leakage from the interior space of the main housing 5 to the surrounding area of ​​the dust collector 1.

[0099] The main housing 5 has an accessory receiving section 24 (first accessory receiving section) provided on the side of the fairing 20. The accessory receiving section 24 is provided adjacent to the left side of the battery assembly 10 on the side of the fairing 20 of the main housing 5. The accessory receiving section 24 is capable of holding accessories of the dust collector 1. At least a portion of the accessories of the dust collector 1 is received in the accessory receiving section 24. The accessories of the dust collector 1 include: tubes that are directly or indirectly connected to the suction cylinder 2. Examples of accessories for the dust collector 1 include dust collection hoses, telescopic tubes, suction nozzles, flat nozzles, and free nozzles. The accessory receiving section 24 is capable of holding the tubes of the accessories. When the accessory is a suction nozzle, the accessory receiving section 24 holds the tube of the suction nozzle. Figure 4 , Figure 5 ,as well as Figure 7 As shown, a recess 20A is provided on the left rear portion of the side of the fairing 20. The recess 20A is configured to be recessed from the outer peripheral surface of the fairing 20 toward the center of the fairing 20. The fairing 20 has a protruding rod portion 20B disposed inside the recess 20A. The protruding rod portion 20B is configured to protrude upward from the bottom surface of the recess 20A. The accessory receiving portion 24 includes the protruding rod portion 20B disposed in the recess 20A. Figure 4 As shown, for example, the nozzle tube is inserted from above into the protruding rod portion 20B, and the accessory receiving portion 24 can hold the nozzle. Additionally, as... Figure 5 as well as Figure 7 As shown, an accessory receiving section 240 (first accessory receiving section) is provided on the side of the main body shell 5, and at the left front of the accessory receiving section 24. The accessory receiving section 240 includes a recess 20H provided on the side of the fairing 20. The accessory receiving section 240 can hold the accessory by inserting the accessory into the recess 20H from above.

[0100] The housing 3 has an accessory receiving section 25 (second accessory receiving section) located at the rear of the housing 3. The accessory receiving section 25 is positioned further rearward than the battery assembly 10 within the housing 3. At least a portion of the accessory receiving section 25 is positioned further rearward than the battery pack 11 assembled in the battery assembly 10. The accessory receiving sections 25 are respectively located at the left and right rear portions of the housing 3. The accessory receiving sections 25 are respectively located further to the left and right than the battery assembly 10. Similar to the accessory receiving section 24, the accessory receiving section 25 is capable of holding the accessories of the dust collector 1. The accessory receiving section 25 includes an arc-shaped member 3A protruding rearward from the rear of the housing 3. The accessory receiving section 25 is capable of holding the accessories by inserting a tube from above into the inner side of the arc-shaped member 3A.

[0101] The motor assembly 7 is disposed inside the main body housing 5. The main body housing 5 has a housing intake port 26. The housing intake port 26 is located at the center of the housing cover 19. The motor assembly 7 is disposed above the housing intake port 26. The motor assembly 7 generates a suction force at the housing intake port 26. The housing intake port 16 opens to the inside of the main body housing 5 through the housing intake port 26. By generating a suction force at the housing intake port 26, a suction force is generated at the housing intake port 16. The motor assembly 7 causes the housing intake port 16 to generate a suction force through the housing intake port 26.

[0102] The motor assembly 7 is positioned at the center of the main body housing 5 in the left-right direction. As described later, the motor assembly 7 includes a motor 35 comprising a rotor 35B that rotates around a rotation axis AX. In the left-right direction, the center of the main body housing 5 may coincide with the position of the rotation axis AX of the motor 35. The motor assembly 7 is also positioned at the center of the main body housing 5 in the front-back direction. Furthermore, in the front-back direction, the rotation axis AX of the motor 35 may be positioned further forward than the center of the main body housing 5.

[0103] The motor assembly 7 is positioned further rearward than the housing intake 16. The motor assembly 7 is positioned further forward than the battery assembly 10. In the left-right direction, the positions of the housing intake 16, at least a portion of the motor assembly 7, and at least a portion of the battery assembly 10 are aligned.

[0104] The filter 8 is configured to cover the housing intake 26. The filter 8 covers the housing intake 26 from below. The filter 8 collects dust from the air flowing from the housing 3 into the inside of the main housing 5 via the housing intake 26.

[0105] Figure 18 This is an exploded perspective view showing the main body housing 5 and the motor cover 9 according to the embodiment. The motor cover 9 is configured to cover the motor assembly 7 inside the main body housing 5. The motor cover 9 has a cylindrical portion 9A disposed around the motor assembly 7 and a top plate portion 9B connected to the upper end of the cylindrical portion 9A. The cylindrical portion 9A has a slit-shaped vent 9C extending upward from the lower end of the cylindrical portion 9A. The motor assembly 7 and the motor cover 9 are respectively disposed above the housing cover 19. The motor assembly 7 and the motor cover 9 are respectively supported by the housing cover 19.

[0106] A battery assembly 10 is provided on the side of the main housing 5. The battery assembly 10 is also provided on the side of the fairing 20. The battery assembly 10 is connected to the battery pack 11. The battery pack 11 is assembled in the battery assembly 10. In this embodiment, the rated voltage of the battery pack 11 is 36 [V].

[0107] Figure 19 This is a diagram showing the state of the battery pack 11 being removed from the battery assembly 10 and the filter unit 12 being removed from the main housing 5, viewed from the upper right rear. Figure 20 This is a diagram showing, from the rear, the battery pack 11 being removed from the battery assembly 10 and the filter unit 12 being removed from the main housing 5, according to the embodiment.

[0108] The battery mounting portion 10 is disposed at the center of the main body housing 5 in the left-right direction. The battery mounting portion 10 is disposed at the rear of the main body housing 5 in the front-rear direction. The fairing 20 has a battery recess 20C recessed from the rear of the fairing 20 towards the front. The battery mounting portion 10 is disposed inside the battery recess 20C. The battery mounting portion 10 is disposed on the rear surface of the rearward-facing battery recess 20C.

[0109] like Figure 20 As shown, the battery assembly 10 includes a pair of guide rails 10A and a plurality of terminals 10B disposed between the pair of guide rails 10A. The guide rails 10A extend in the vertical direction. The pair of guide rails 10A are arranged at intervals from each other in the horizontal direction.

[0110] The battery pack 11 is detachable from the battery assembly 10. When assembled in the battery assembly 10, the battery pack 11 supplies power to the electrical equipment mounted on the dust collector 1. The battery pack 11 is a general-purpose battery capable of being used as a power source for various electrical devices. The battery pack 11 can be used as a power source for power tools. The battery pack 11 can be used as a power source for electrical devices other than power tools. The battery pack 11 can be used as a power source for a dust collector different from the dust collector 1 described in this embodiment. The battery pack 11 is a rechargeable battery. The battery pack 11 includes lithium-ion batteries. The battery assembly 10 has a structure identical to that of the battery assembly of a power tool.

[0111] The user of the dust collector 1 can perform the operations of assembling the battery pack 11 into the battery assembly section 10 and removing the battery pack 11 from the battery assembly section 10. The user inserts the battery pack 11 into the battery assembly section 10 from above, thus assembling the battery pack 11 into the battery assembly section 10. The battery pack 11 is assembled into the battery assembly section 10 by moving downwards while being guided by the guide rail 10A. By assembling the battery pack 11 into the battery assembly section 10, the terminals of the battery pack 11 are electrically connected to the terminals 10B of the battery assembly section 10. The user of the dust collector 1 can remove the battery pack 11 from the battery assembly section 10 by moving the battery pack 11 upwards.

[0112] Figure 21 This diagram illustrates the filter unit 12 according to the embodiment. The filter unit 12 includes a filter 27 and a filter housing 28 that holds the filter 27. Air exhausted from the main housing 5 passes through the filter 27. The filter 27 recovers dust from the air exhausted from the main housing 5. The filter 27 is a high-performance filter such as a HEPA (High Efficiency Particulate Air Filter) or an ULPA (Ultra Low Penetration Air Filter).

[0113] The filter housing 28 has: a frame portion 28A surrounding the filter 27, a plate portion 28B disposed further outward than the filter 27 towards the main housing 5, and a hook portion 28C provided on the upper part of the plate portion 28B. A plurality of housing exhaust ports 28D are provided on the plate portion 28B. Air passing through the filter 27 passes through the housing exhaust ports 28D.

[0114] The filter 27 is fixed to the filter housing 28, which has a housing vent 28D. The filter 27 is fixed to the housing vent 28D of the filter housing 28. The filter 27 and the filter housing 28 are integral.

[0115] A filter unit assembly 29 is provided on the side of the main housing 5. The filter unit assembly 29 is located adjacent to the right side of the battery assembly 10 on the side of the fairing 20. The filter unit assembly 29 is positioned on the side of the fairing 20 further rearward than the motor assembly 7 and adjacent to the right side of the battery assembly 10. A filter unit 12 is assembled in the filter unit assembly 29. The filter unit 12 includes an opening (exhaust port) provided in the main housing 5. The filter 27 of the filter unit 12 is disposed in the filter unit assembly 29.

[0116] The filter unit 12 is detachable from the filter unit assembly portion 29 of the main housing 5. At least a portion around the filter unit assembly portion 29 is provided with a locking portion for the hook portion 28C to engage. The locking portion is located on the upper part of the filter unit assembly portion 29 on the side of the fairing 20. The filter unit 12 is assembled to the filter unit assembly portion 29 by engaging the hook portion 28C with the locking portion of the fairing 20. With the filter unit 12 assembled to the filter unit assembly portion 29, the filter 27 is also assembled to the filter unit assembly portion 29. With the filter unit 12 assembled to the filter unit assembly portion 29, the filter 27 is disposed adjacent to the battery assembly portion 10 on the side of the main housing 5. In this embodiment, the filter 27 is disposed adjacent to the right side of the battery assembly portion 10. By releasing the engagement between the hook portion 28C and the fairing 20, the main housing 5 and the filter unit 12 can be separated, and the filter unit 12 is removed from the filter unit assembly portion 29.

[0117] The switch 13 is located on the front of the main housing 5. By operating the switch 13, the driving and driving stop of the motor 35 of the motor assembly 7 are switched.

[0118] The handle 14 is supported on the upper part of the main body housing 5 in a rotatable manner. The handle 14 is positioned further rearward than the switch 13. The user of the dust collector 1 can move the dust collector 1 by holding the handle 14.

[0119] The controller 15 includes a computer. The controller 15 outputs control signals for controlling the electrical equipment mounted on the dust collector 1. The electrical equipment includes a motor assembly 7. The controller 15 outputs control signals for controlling the motor 35 of the motor assembly 7. An operation signal generated by operating the on / off switch 13 is sent to the controller 15. Based on the operation signal from the on / off switch 13, the controller 15 switches between driving and stopping the motor 35 of the motor assembly 7. The controller 15 includes a control board on which multiple electronic components are mounted. Examples of electronic components mounted on the control board include: a processor such as a CPU (Central Processing Unit), non-volatile memory such as ROM (Read Only Memory) or RAM (Random Access Memory), transistors, capacitors, and resistors.

[0120] [Motor assembly and motor cover]

[0121] Figure 22 This is a diagram showing the motor cover 9 as described in the embodiment, viewed from the upper left front. Figure 23 This is a diagram showing the motor assembly 7 and motor cover 9 as described in the embodiment, viewed from the upper left front. Figure 23 In the middle, the motor cover 9 is drawn from the imaginary line drawing. Figure 24 This is a diagram showing the motor assembly 7 and motor cover 9 as described in the embodiment from below.

[0122] The motor cover 9 is configured to cover the motor assembly 7. The motor cover 9 has a cylindrical portion 9A disposed around the motor assembly 7 and a top plate portion 9B connected to the upper end of the cylindrical portion 9A. The cylindrical portion 9A and the top plate portion 9B are integral. The cylindrical portion 9A has a cover vent 9C extending upward from the lower end of the cylindrical portion 9A. The cover vent 9C is a slit-like structure that is relatively long in the vertical direction.

[0123] The dust collector 1 includes: a retaining member 30 mounted on at least a portion of the motor assembly 7, a motor support member 31 mounted on at least a portion of the motor assembly 7, and a cover support member 32 mounted on at least a portion of the motor cover 9. Additionally, the dust collector 1 includes: a rotation suppression member 33 mounted on the cylindrical portion 9A of the motor cover 9.

[0124] Figure 25 This is an exploded view of the motor assembly 7, motor cover 9, retaining member 30, motor support member 31, and cover support member 32 involved in the embodiment, viewed from the upper left front. Figure 26 This is an exploded view of the motor assembly 7, motor cover 9, retaining member 30, motor support member 31, and cover support member 32 involved in the embodiment, viewed from the upper right rear. Figure 27This is a perspective sectional view showing the motor assembly 7, motor cover 9, retaining member 30, motor support member 31, and cover support member 32 involved in the embodiment, which is equivalent to... Figure 22 The cross section along the E-E line is shown in the view. Figure 28 This is a perspective sectional view showing the motor assembly 7, motor cover 9, retaining member 30, motor support member 31, and cover support member 32 involved in the embodiment, which is equivalent to... Figure 22 The F-F line section is shown in the view. Figure 29 This is a longitudinal end view of the motor assembly 7, motor cover 9, retaining member 30, motor support member 31, and cover support member 32 involved in the embodiment, which is equivalent to a front view. Figure 28 The image.

[0125] Figure 29 A detailed cross-section of motor assembly 7 is shown. Additionally, Figures 8 to 12 as well as Figures 27 to 28 A simplified cross-section of motor assembly 7 is shown. (As shown) Figure 29 As shown, the motor assembly 7 includes: a fan 34, a motor 35 that rotates the fan 34, and a motor housing 36 that houses the fan 34 and the motor 35.

[0126] Motor 35 is an internal rotor type brushless motor. Motor 35 generates power to rotate fan 34. Motor 35 has: a stator 35A, a rotor 35B disposed inside the stator 35A, and a rotor shaft 35C fixed to the rotor 35B. Rotor shaft 35C extends in the vertical direction. The rotation axis AX of rotor shaft 35C extends in the vertical direction. Rotor shaft 35C is supported for rotation by bearings 35D and 35E. Bearing 35D supports the upper part of rotor shaft 35C for rotation. Bearing 35E supports the lower part of rotor shaft 35C for rotation.

[0127] Fan 34 is fixed to rotor shaft 35C. Fan 34 rotates by the rotational force generated by motor 35. When rotor shaft 35C of motor 35 rotates, fan 34 rotates. Fan 34 draws suction from housing inlet 26 to housing inlet 16. Fan 34 is fixed to the lower end of rotor shaft 35C. Fan 34 is a centrifugal fan.

[0128] The motor housing 36 houses the fan 34 and the motor 35 inside the main body housing 5. The motor housing 36 supports the stator 35A of the motor 35. The motor housing 36 also supports bearings 35D and 35E. The motor housing 36 has: a cylindrical portion 36A configured to surround the rotating shaft AX; a top plate portion 36B connected to the upper end of the cylindrical portion 36A; and an annular portion 36C connected to the lower end of the cylindrical portion 36A. The cylindrical portion 36A and the top plate portion 36B are fixed by screws. The cylindrical portion 36A and the annular portion 36C are fixed by adhesive.

[0129] The motor housing 36 has a motor intake port 36D and a motor exhaust port 36E. The motor intake port 36D is located at the lower end of the motor housing 36. The motor intake port 36D is located inside the annular portion 36C. The motor exhaust port 36E is located on at least a portion of the outer peripheral surface of the cylindrical portion 36A of the motor housing 36. The motor exhaust port 36E is located at the upper part of the outer peripheral surface of the cylindrical portion 36A. The motor exhaust port 36E is configured such that it penetrates the inner and outer peripheral surfaces of the cylindrical portion 36A at the upper part of the cylindrical portion 36A.

[0130] The motor housing 36 is the outer contour component of the motor assembly 7. The outer peripheral surface of the motor assembly 7, arranged around the rotation shaft AX of the motor 35, is shown as: the outer peripheral surface 36F of the cylindrical portion 36A of the motor housing 36. One end face of the motor assembly 7, connected to the upper end of its outer peripheral surface, is shown as: the upper surface of the top plate portion 36B of the motor housing 36. The other end face of the motor assembly 7, connected to the lower end of its outer peripheral surface, is shown as: the lower surface 36H of the annular portion 36C of the motor housing 36.

[0131] like Figure 8 as well as Figure 9 As shown, the motor assembly 7 is positioned higher than the housing cover 19. The motor assembly 7 is supported on the housing cover 19 with the motor intake port 36D facing the housing intake port 26. When the fan 34 rotates, it creates an attractive force at the housing intake port 26, causing air to flow from the housing intake port 26 into the motor intake port 36D. After circulating inside the motor housing 36, the air flowing into the motor intake port 36D is exhausted to the outside of the motor housing 36 through the motor exhaust port 36E.

[0132] The retaining member 30 is mounted on at least a portion of the motor assembly 7. The retaining member 30 is in contact with at least a portion of the motor assembly 7. In one embodiment, the retaining member 30 is mounted on the upper part of the motor assembly 7. The retaining member 30 is in contact with the upper part of the motor assembly 7. The retaining member 30 is capable of suppressing the transmission of vibrations from the motor assembly 7. The retaining member 30 is used to suppress the transmission of vibrations generated in the motor assembly 7 to objects surrounding the motor assembly 7. The retaining member 30 is used to suppress the transmission of vibrations from the motor assembly 7 to the main housing 5. The retaining member 30 is used to suppress the transmission of vibrations from the motor assembly 7 to the motor cover 9. The retaining member 30 is an elastic member. The retaining member 30 is a flexible member. The retaining member 30 is a vibration damping member. In one embodiment, the retaining member 30 is made of rubber.

[0133] The retaining member 30 has a first surface 301 that contacts at least a portion of the outer peripheral surface of the motor assembly 7, and a second surface 302 that contacts at least a portion of the end face of the motor assembly 7. The outer peripheral surface of the motor assembly 7 is disposed around the rotation shaft AX of the motor 35. The end face of the motor assembly 7 is connected to the end of the outer peripheral surface of the motor assembly 7. In an embodiment, the end face of the motor assembly 7 that the retaining member 30 contacts is the upper end face that is connected to the upper end of the outer peripheral surface of the motor assembly 7. The first surface 301 contacts the upper part of the outer peripheral surface 36F of the motor assembly 7. The second surface 302 contacts the upper end face of the motor assembly 7, i.e., the upper surface 36G.

[0134] The retaining member 30 is a cap-shaped member that covers the upper part of the motor assembly 7. The retaining member 30 has a recess 303 that covers a portion of the end face and outer peripheral surface of the motor assembly 7. The inner surface of the recess 303 includes a first surface 301 and a second surface 302. The retaining member 30 has a peripheral wall portion 30A disposed around the cylindrical portion 36A, and a top portion 30B connected to the upper end of the peripheral wall portion 30A. The top portion 30B has a top surface opposite to the top plate portion 36B. The top surface of the top portion 30B faces downward. The recess 303 is defined by the inner peripheral surface of the peripheral wall portion 30A and the top surface of the top portion 30B. The recess 303 covers the upper part of the upper surface 36G and the outer peripheral surface 36F of the motor assembly 7. The inner peripheral surface of the recess 303 (the inner peripheral surface of the peripheral wall portion 30A) includes the first surface 301. The top surface of the recess 303 (the top surface of the top 30B) includes a second surface 302. The first surface 301 faces radially inward toward the rotation axis AX. The second surface 302 faces downward.

[0135] Furthermore, in this embodiment, a protrusion projecting upwards is provided at the center of the upper surface of the top plate portion 36B, and a protrusion is also provided at the center of the top 30B, matching the shape of the top plate portion 36B. The upper surface of the top plate portion 36B can be a flat surface. The upper surface of the top 30B can also be a flat surface.

[0136] A retaining member 30 is disposed between the motor assembly 7 and the motor housing 9. The retaining member 30 is in contact with at least a portion of the motor housing 9. That is, the retaining member 30 is in contact with both the motor assembly 7 and the motor housing 9. The retaining member 30 is used to suppress the transmission of vibration from the motor assembly 7 to the motor housing 9.

[0137] The retaining member 30 has a protrusion 30C that protrudes radially outward toward the rotation axis AX. The protrusion 30C protrudes radially outward from the outer peripheral surface of the peripheral wall portion 30A. Multiple protrusions 30C are spaced apart circumferentially along the rotation axis AX. In one embodiment, three protrusions 30C are spaced apart circumferentially. The protrusion 30C contacts the motor housing 9. In another embodiment, only the protrusion 30C contacts the motor housing 9 within the retaining member 30. The peripheral wall portion 30A is separate from the motor housing 9. The top portion 30B is separate from the motor housing 9.

[0138] The cylindrical portion 9A of the motor housing 9 is disposed around the rotation shaft AX of the motor 35. The motor housing 9 has a retaining portion 9D for holding a protrusion 30C. Multiple retaining portions 9D are provided in such a manner that they correspond to a plurality of protrusions 30C. In this embodiment, three retaining portions 9D are provided at intervals along the circumference of the rotation shaft AX. The retaining portion 9D includes a recess provided in a rib 9E that protrudes radially inward from the inner circumferential surface of the cylindrical portion 9A. The protrusion 30C is held in the retaining portion 9D by inserting the protrusion 30C into the recess of the rib 9E. The retaining portion 9D includes a recess of the rib 9E that receives the protrusion 30C disposed inside the motor housing 9.

[0139] In this embodiment, among the three protrusions 30C, a groove 30E is provided on the outer end face of one of the protrusions 30C1. The groove 30E is longer in the vertical direction. Among the three retaining portions 9D, a protrusion 9F is provided in the retaining portion 9D1 that holds the protrusion 30C1. The protrusion 9F is inserted into the groove 30E.

[0140] The retaining member 30 has a cover portion 30D disposed adjacent to the protrusion 30C in the circumferential direction of the rotation axis AX. The cover portion 30D protrudes radially outward from the outer peripheral surface of the peripheral wall portion 30A. Multiple cover portions 30D are provided at intervals in the circumferential direction. In this embodiment, three cover portions 30D are provided at intervals in the circumferential direction. The cover portion 30D is separate from the motor cover 9. The cover portion 30D does not contact the motor cover 9.

[0141] The cover 30D has a guide surface 30F opposite to the motor exhaust port 36E. The guide surface 30F faces radially inward. The guide surface 30F is positioned radially outward than the motor exhaust port 36E. Figure 28As shown by the middle arrow, the air discharged from the motor exhaust port 36E is guided by the guide surface 30F. The guide surface 30F guides the air discharged from the motor exhaust port 36E downwards.

[0142] Motor support member 31 is mounted on at least a portion of motor assembly 7. Motor support member 31 contacts at least a portion of motor assembly 7. Motor support member 31 is disposed between main housing 5 and motor assembly 7. In an embodiment, motor support member 31 is mounted on the lower part of motor assembly 7. Motor support member 31 contacts the lower part of motor assembly 7. Motor support member 31 is used to suppress the transmission of vibrations from motor assembly 7. Motor support member 31 is used to suppress the transmission of vibrations generated in motor assembly 7 to objects around motor assembly 7. Motor support member 31 is used to suppress the transmission of vibrations from motor assembly 7 to main housing 5. Motor support member 31 is used to suppress the transmission of vibrations from motor assembly 7 to housing cover 19. Motor support member 31 is an elastic member. Motor support member 31 is a flexible member. Motor support member 31 is a vibration damping member. In an embodiment, motor support member 31 is made of rubber.

[0143] The motor support component 31 contacts the lower part of the outer peripheral surface 36F of the motor assembly 7. The motor support component 31 also contacts the lower end face, i.e., the lower surface 36H, of the motor assembly 7.

[0144] The motor support member 31 is a cylindrical component that covers the lower part of the motor assembly 7. The motor support member 31 is disposed between the lower part of the motor assembly 7 and the housing cover 19. The motor support member 31 contacts at least a portion of the housing cover 19. That is, the motor support member 31 contacts both the motor assembly 7 and the housing cover 19. The motor support member 31 has a cylindrical portion 31A that contacts the lower part of the motor assembly 7, and a rib 31B that protrudes downward from the cylindrical portion 31A. The rib 31B contacts the upper surface of the housing cover 19. The motor support member 31 is used to suppress the transmission of vibration from the motor assembly 7 to the housing cover 19.

[0145] The cover support member 32 is disposed between the main body housing 5 and the motor housing 9. The cover support member 32 is used to suppress the transmission of vibration from the motor housing 9 to the main body housing 5. The retaining member 30, the cover support member 32, and the motor support member 31 are separated from each other.

[0146] In one embodiment, the cover support member 32 includes a first cover support member 321 mounted on the upper part of the motor cover 9 and a second cover support member 322 mounted on the lower part of the motor cover 9. The first cover support member 321 is disposed between the fairing 20 and the motor cover 9. The first cover support member 321 is disposed between the fairing 20 and the upper part of the motor cover 9. The second cover support member 322 is disposed between the housing cover 19 and the motor cover 9. The second cover support member 322 is disposed between the housing cover 19 and the lower part of the motor cover 9.

[0147] The first cover support member 321 is configured to contact at least a portion of the motor cover 9. The first cover support member 321 is an elastic member. The first cover support member 321 is a flexible member. The first cover support member 321 is a vibration damping member. The first cover support member 321 is used to suppress the transmission of vibration from the motor cover 9 to the main housing 5. In an embodiment, the first cover support member 321 is made of rubber.

[0148] The first cover support member 321 contacts the upper part of the motor cover 9. The first cover support member 321 contacts the upper surface of the top plate portion 9B. The first cover support member 321 is disposed between the upper part of the fairing 20 and the motor cover 9. The first cover support member 321 is an annular component disposed on the upper surface of the top plate portion 9B.

[0149] The first cover support member 321 contacts the top plate portion 9B and the fairing 20, respectively. A groove 321A is provided on the upper surface of the first cover support member 321. The groove 321A is recessed downwards from the upper surface of the first cover support member 321. In a plane orthogonal to the rotation axis AX, the groove 321A is annular. Figure 9 As shown, the fairing 20 has a rib 20D that inserts into the slot 321A. By inserting the rib 20D into the slot 321A, the fairing 20 and the first fairing support member 321 are positioned.

[0150] The second cover support member 322 is configured to contact at least a portion of the motor cover 9. The second cover support member 322 is an elastic member. The second cover support member 322 is a flexible member. The second cover support member 322 is a vibration damping member. The second cover support member 322 is used to suppress the transmission of vibration from the motor cover 9 to the main housing 5. In an embodiment, the second cover support member 322 is made of rubber.

[0151] The second cover support member 322 contacts the lower part of the motor cover 9. The second cover support member 322 contacts the lower end of the cylindrical portion 9A. The second cover support member 322 is disposed between the housing cover 19 and the lower part of the motor cover 9. A portion of the lower end of the cylindrical portion 9A has a notch formed due to the cover exhaust port 9C. The second cover support member 322 is a curved member disposed along the lower end of the cylindrical portion 9A.

[0152] The second cover support member 322 contacts the cylindrical portion 9A and the housing cover 19, respectively. A groove 322A is provided on the upper surface of the second cover support member 322. The groove 322A is recessed downwards from the upper surface of the second cover support member 322. The groove 322A is curved in a plane orthogonal to the rotation axis AX. The lower end of the cylindrical portion 9A is inserted into the groove 322A. By inserting the lower end of the cylindrical portion 9A into the groove 322A, the cylindrical portion 9A and the second cover support member 322 are positioned.

[0153] like Figure 18 As shown, a retaining groove 19D is provided on the upper surface of the housing cover 19 to hold the second cover support member 322. The housing cover 19 and the second cover support member 322 are positioned by the second cover support member 322 being disposed in the retaining groove 19D.

[0154] The rotation suppression member 33 is used to suppress the rotation of the motor cover 9 relative to the main body housing 5. That is, the rotation suppression member 33 stops the motor cover 9 from rotating. In this embodiment, the rotation suppression member 33 is made of rubber. A plurality of rotation suppression members 33 are provided at intervals along the circumferential direction on the outer peripheral surface of the motor cover 9. In this embodiment, two rotation suppression members 33 are provided.

[0155] The radially inner end of the rotation suppression component 33 is fixed to the lower part of the outer peripheral surface of the cylindrical portion 9A. For example... Figure 11 as well as Figure 12 As shown, the fairing 20 has a retaining rib 20E that holds the rotation suppression member 33. The retaining rib 20E protrudes downward from the top surface of the fairing 20. The top surface of the fairing 20 faces downward. The rotation suppression member 33, which is fixed to the outer peripheral surface of the cylindrical portion 9A, is held in the retaining rib 20E of the fairing 20, thereby suppressing the rotation of the motor cover 9 relative to the main body housing 5.

[0156] [Occlusion and Suppression Section]

[0157] Figure 30 This is a diagram showing the main body shell 5 as viewed from the lower right front of the embodiment. Figure 31 This is an exploded view of the main body shell 5 and filter 8 involved in the implementation method, viewed from the lower right front. Figure 32 This is a diagram showing the filter 8 installed on the main body housing 5, as described in the embodiment, viewed from below. Figure 33 This is a diagram showing the housing intake 26 of the embodiment as viewed from below. Figure 34 This is a diagram showing the filter 8 installed on the main body housing 5, as described in the embodiment, viewed from the lower right rear. Figure 35 This is a diagram showing the housing intake 26 as described in the embodiment, viewed from the lower right rear. Figure 36This is a longitudinal sectional view showing a portion of the housing cover 19 according to the embodiment, equivalent to... Figure 32 The cross section along the G-G line is shown in the view. Figure 37 This is a longitudinal sectional view showing a portion of the housing shroud 19 and the filter 8 involved in the embodiment, equivalent to... Figure 32 The H-H line section is shown in the view.

[0158] As described above, a housing intake 26 is provided in the center of the housing cover 19. The main housing 5 is connected to the housing 3 with the housing intake 26 facing the interior space of the housing 3. The fan 34 of the motor assembly 7 rotates, generating a suction force at the housing intake 26. By generating a suction force at the housing intake 26, a suction force is generated at the housing intake 16.

[0159] A blocking suppression part 37 is provided around the housing intake 26 to prevent blockage of the housing intake 26. The housing intake 26 may be blocked by objects disposed within the internal space of the housing 3. The blocking suppression part 37 is used to prevent the housing intake 26 from being blocked by objects disposed within the internal space of the housing 3. Examples of objects that may block the housing intake 26 include [reference needed]. Figure 8 as well as Figure 14 The dust collection bag 17 is described. The dust collection bag 17 is disposed within the internal space of the housing 3. When the dust collection bag 17 inflates, the outer casing suction inlet 26 may be blocked from below by the dust collection bag 17. The blockage suppression part 37 can suppress the situation where the outer casing suction inlet 26 is blocked by the dust collection bag 17.

[0160] The occlusion suppression section 37 includes a wall portion 38 disposed around at least a portion of the housing intake 26, and a venting portion 39 disposed on the wall portion 38. The wall portion 38 protrudes from the plate portion 19A of the housing cover 19 toward the outer side of the main housing 5. The wall portion 38 protrudes downward from the lower surface of the housing cover 19. In an embodiment, the wall portion 38 includes a surrounding rib disposed to surround the housing intake 26. In the following description, the wall portion 38 will be appropriately referred to as the surrounding rib 38.

[0161] The surrounding rib 38 is configured to surround the housing intake 26. The surrounding rib 38 protrudes outward toward the outer side of the main housing 5. The surrounding rib 38 protrudes downward from the lower surface of the plate portion 19A of the housing cover 19. In a plane orthogonal to the rotation axis AX, the surrounding rib 38 is quadrilateral.

[0162] The vent 39 is provided in the surrounding rib 38 in such a way that it will not be blocked by the dust bag 17 even if it comes into contact with the lower end of the surrounding rib 38. In an embodiment, the vent 39 includes a recess provided in the surrounding rib 38. In the following description, the vent 39 will be appropriately referred to as the recess 39.

[0163] The recess 39 is configured to be recessed upward from the lower end of the surrounding rib 38. Multiple recesses 39 are provided in a plane orthogonal to the rotation axis AX. As described above, the surrounding rib 38 is quadrilateral in shape in a plane orthogonal to the rotation axis AX. The surrounding rib 38 is formed by four plate-like portions 38A. Two recesses 39 are provided in each plate-like portion 38A. In each plate-like portion 38A, the two recesses 39 are arranged in a direction orthogonal to the rotation axis AX.

[0164] like Figure 36 As shown, the width Wa of the recess 39 is greater than the depth Da of the recess 39. Width Wa refers to the dimension of the recess 39 in the direction parallel to the lower surface of the plate portion 19A (orthogonal to the rotation axis AX). Depth Da refers to the dimension of the recess 39 in the direction orthogonal to the lower surface of the plate portion 19A (orthogonal to the rotation axis AX).

[0165] In this embodiment, the grid ribs 40 are disposed at the outer casing intake 26. The grid ribs 40 are integral with the casing cover 19. Figure 33 As shown, the lattice ribs 40 are formed by combining multiple linear ribs 40A and multiple arcuate ribs 40B. The linear ribs 40A are configured to pass through the center of the housing intake 26 and connect a portion of the edge of the housing intake 26 to other parts. The multiple linear ribs 40A extend in different directions. The arcuate ribs 40B are configured to surround the center of the housing intake 26. The arcuate ribs 40B are configured to connect adjacent linear ribs 40A.

[0166] like Figure 35 as well as Figure 37 As shown, the lattice rib 40 protrudes outward toward the outer side of the main body shell 5. The lattice rib 40 protrudes downward from the housing cover 19. The lattice rib 40 is formed to bulge downward. The center of the lattice rib 40 is positioned further downward than the peripheral portion of the lattice rib 40 near the edge of the shell intake port 26.

[0167] like Figure 37 As shown, the protrusion Ha of the surrounding rib 38 from the plate portion 19A is greater than the protrusion Hb of the lattice rib 40. The protrusion Ha refers to the distance between the lower surface 19E of the plate portion 19A and the lower end face 38B of the surrounding rib 38 in a direction parallel to the rotation axis AX. The protrusion Hb refers to the distance between the lower surface 19E of the plate portion 19A and the lower end face 40C of the lattice rib 40 in a direction parallel to the rotation axis AX.

[0168] A filter 8 is disposed at the housing intake 26. The filter 8 is configured to cover the housing intake 26 from the outside of the main housing 5. The filter 8 is also configured to cover the housing intake 26 from below. The filter 8 is larger than the housing intake 26. The filter 8 is configured to completely cover the housing intake 26.

[0169] In this embodiment, the filter 8 is disposed inside the surrounding rib 38. In a plane orthogonal to the rotation axis AX, the filter 8 has a quadrilateral shape. The shape of the filter 8 is similar to that of the surrounding rib 38. The side surface of the filter 8 contacts the inner side surface of the surrounding rib 38.

[0170] Filter 8 is a porous component similar to a sponge. Filter 8 is a flexible component. Filter 8 is expandable and contractible. When no external force is applied to filter 8, the outer shape of filter 8 is larger than that of surrounding rib 38. Filter 8 is positioned inside surrounding rib 38 in a slightly flattened state.

[0171] like Figure 36 As shown, when the filter 8 is disposed inside the surrounding rib 38, the recess 39 overlaps with at least a portion of the side surface 8A of the filter 8. That is, when the filter 8 is disposed inside the surrounding rib 38, at least a portion of the side surface 8A of the filter 8 is exposed from the recess 39.

[0172] like Figure 36 As shown, the lower surface 8B of the filter 8 is positioned further downward than the upper end surface 39A of the recess 39, and positioned further upward than the lower end surface 38B of the surrounding rib 38. That is, the filter 8 does not protrude downward from the lower end of the surrounding rib 38. The upper surface of the filter 8 is positioned further upward than the upper end surface 39A of the recess 39, and contacts at least a portion of the grid rib 40.

[0173] The housing cover 19 has: a fixing rib 41 for fixing the filter 8. The fixing rib 41 is disposed around at least a portion of the housing inlet 26. The fixing rib 41 is disposed inside the surrounding rib 38. The fixing rib 41 protrudes outward toward the main housing 5. The fixing rib 41 protrudes downward toward the lower surface of the plate portion 19A. In this embodiment, the fixing rib 41 is a rod-shaped rod that is longer in the vertical direction. Four fixing ribs 41 are provided at intervals around the housing inlet 26.

[0174] The filter 8 has an opening 8C for inserting a retaining rib 41. By inserting the retaining rib 41 into the opening 8C, the filter 8 is mounted to the housing cover 19 in a manner that covers the housing intake 26. Figure 37As shown, a hook portion 41A is provided at the lower end of the fixing rib 41. The filter 8 is hooked onto the hook portion 41A by the lower surface 8B of the filter 8, thus preventing the filter 8 from falling off the housing cover 19.

[0175] [Exhaust Flow Path]

[0176] like Figure 12 As shown, an exhaust flow path 42 is provided on the inner side of the main body shell 5, connecting the hood exhaust port 9C and the filter unit assembly portion 29. The filter unit assembly portion 29 is an opening (exhaust port) provided on the main body shell 5 for assembling the filter unit 12. With the filter unit 12 assembled in the filter unit assembly portion 29, the exhaust flow path 42 is configured to connect the hood exhaust port 9C and the shell exhaust port 28D. The hood 20 has a first flow path forming rib 20F and a second flow path forming rib 20G. The first flow path forming rib 20F and the second flow path forming rib 20G protrude downward from the top surface of the hood 20. In a plane parallel to the upper surface of the plate portion 19A, the first flow path forming rib 20F is configured to surround the housing hood 19. The first flow path forming rib 20F is configured to connect the hood exhaust port 9C and the filter unit assembly portion 29. A portion of the upstream side of the exhaust flow path 42 is defined by the first flow path forming rib 20F, the housing cover 19, the top surface of the fairing 20, and the upper surface of the plate portion 19A. The second flow path forming rib 20G is configured to connect the front right portion of the housing cover 19 and the filter unit assembly portion 29. A portion of the downstream side of the exhaust flow path 42 is defined by the first flow path forming rib 20F, the second flow path forming rib 20G, the top surface of the fairing 20, and the upper surface of the plate portion 19A.

[0177] A sound-absorbing component 43 is disposed in the exhaust flow path 42. The sound-absorbing component 43 is a porous component such as a sponge. The sound-absorbing component 43 is configured to contact the first flow path forming rib 20F and the second flow path forming rib 20G respectively. Figure 8 as well as Figure 9 As shown, the sound-absorbing component 43 is configured to contact the top surface of the fairing 20.

[0178] like Figure 12 As shown, the filter 27 of the filter unit 12 is disposed at the outlet of the exhaust flow path 42. The outlet of the exhaust flow path 42 includes the filter unit assembly 29. The filter unit assembly 29 is located on the side of the main body housing 5, positioned further rearward than the motor assembly 7, and adjacent to the right side of the battery assembly 10. Air flowing through the exhaust flow path 42 passes through the filter 27 and the housing exhaust port 28D of the filter housing 28, and is then discharged to the outside of the main body housing 5.

[0179] The battery assembly 10 is located at the center of the main body housing 5 in the left-right direction. The battery assembly 10 is also located at the rear of the main body housing 5. The motor assembly 7 is located at the center of the main body housing 5 in the left-right direction. The filter 27 is disposed adjacent to the right side of the battery assembly 10. The filter 27 is positioned further rearward than the motor assembly 7.

[0180] When the centerline CL is a line passing through the center of the dust collector 1 in the left-right direction and extending in the front-back direction, the housing suction inlet 16, the motor assembly 7, and the battery assembly 10 are arranged on the centerline CL. That is, in the left-right direction, the positions of the housing suction inlet 16, at least a portion of the motor assembly 7, and at least a portion of the battery assembly 10 are aligned. In this embodiment, in the left-right direction, the positions of the center of the housing suction inlet 16, the center of the motor assembly 7, and the center of the battery assembly 10 are aligned. The center of the motor assembly 7 is the position of the rotation axis AX of the motor 35.

[0181] In this embodiment, with the filter unit 12 assembled in the filter unit assembly section 29, the housing exhaust port 28D faces a different direction than the cover exhaust port 9C. For example... Figure 12 As shown, in a plane orthogonal to the rotation axis AX, with the outer casing exhaust port 28D facing a first direction parallel to the first axis J1 and the shroud exhaust port 9C facing a second direction parallel to the second axis J2, the angle θ between the first direction (first axis J1) and the second direction (second axis J2) is determined to be more than 180 degrees and less than 270 degrees. In the embodiment, the outer casing exhaust port 28D faces to the right rear. The shroud exhaust port 9C faces to the left. In the embodiment, the angle θ is approximately 225 degrees. Angle θ is: the larger of the angles formed by the first direction (first axis J1) and the second direction (second axis J2) in a plane orthogonal to the rotation axis AX (the angle on the front side).

[0182] The exhaust path 42, connecting the exhaust port 9C of the cover and the exhaust port 28D of the outer casing, is configured to surround the motor cover 9. For example... Figure 12 As indicated by the middle arrow, the air discharged from the exhaust port 9C to the left flows along the exhaust flow path 42. The air discharged from the exhaust port 9C flows forward on the left side of the motor cover 9, then to the right side of the front of the motor cover 9, and then to the rear on the right side of the motor cover 9. The air flowing to the rear on the right side of the motor cover 9 passes through the filter 27 and is then discharged to the outside of the main body housing 5.

[0183] The controller 15 is disposed on the left front of the motor assembly 7 inside the main housing 5. The controller 15 is held in a controller retaining rib provided on the fairing 20. The controller 15 is positioned adjacent to the exhaust flow path 42. The controller 15 is configured to be opposite the first flow path forming rib 20F on the outside of the exhaust flow path 42. Alternatively, the controller 15 may be disposed inside the exhaust flow path 42.

[0184] [action]

[0185] Next, the operation of the dust collector 1 will be explained. When the on / off switch 13 is operated to input an operation signal for driving the motor 35 to the controller 15, the controller 15 outputs a control signal to start driving the motor 35. When the rotor shaft 35C rotates based on the control signal output from the controller 15, the fan 34 rotates together with the rotor shaft 35C. The rotation of the fan 34 generates suction at the outer casing inlet 26 and at the housing inlet 16. When suction is generated at the housing inlet 16, dust and air flow into the interior space of the housing 3 through the housing inlet 16. The dust bag 17 is disposed in the interior space of the housing 3. The dust drawn into the dust bag 17 from the housing inlet 16 remains in the dust bag 17. The air drawn into the dust bag 17 from the housing inlet 16 passes through the dust bag 17 and is then drawn back into the outer casing inlet 26.

[0186] Figure 38 This diagram illustrates the relationship between the dust collection bag 17 and the surrounding rib 38 according to the embodiment. Air flows into the dust collection bag 17 from the housing intake 16, causing the dust collection bag 17 to inflate. When the dust collection bag 17 inflates to near the housing intake 26, it may block the housing intake 26. In this embodiment, a blockage suppression part 37 is provided around the housing intake 26 to prevent blockage. The blockage suppression part 37 has a surrounding rib 38 and a recess 39 provided in the surrounding rib 38. Figure 38 As shown, when the dust bag 17 inflates to near the housing suction inlet 26, it will contact the lower end face 38B of the surrounding rib 38. The lower end face 38B of the surrounding rib 38 is positioned further downward than the housing suction inlet 26. By contacting the lower end face 38B of the surrounding rib 38, the possibility of the dust bag 17 clogging the housing suction inlet 26 is suppressed.

[0187] The recess 39 is provided in the surrounding rib 38 in such a way that the dust bag 17 will not be blocked even if it comes into contact with the lower end face 38B of the surrounding rib 38. The recess 39 ensures ventilation from the interior space of the housing 3 to the outer casing suction port 26. At least a portion of the side 8A of the filter 8 protrudes from the recess 39. Thus, air passing through the recess 39 flows into the interior of the filter 8 from the side 8A and then out from the upper surface of the filter 8. The upper surface of the filter 8 is opposite the outer casing suction port 26. Therefore, air flowing out from the upper surface of the filter 8 is drawn into the outer casing suction port 26 and flows into the interior space of the main housing 5.

[0188] If the air passing through the dust collection bag 17 contains fine dust particles, the filter 8 recovers the dust from the air. The air, after the dust has been recovered by the filter 8, is drawn in through the housing intake 26.

[0189] Air flowing from the housing intake port 26 into the motor intake port 36D of the motor assembly 7. After passing through the interior of the motor housing 36, the air flowing into the motor intake port 36D is discharged to the exterior of the motor housing 36 through the motor exhaust port 36E. Figure 28 As shown by the middle arrow, the air discharged from the motor exhaust port 36E is guided by the guide surface 30F of the cover portion 30D. The guide surface 30F guides the air discharged from the motor exhaust port 36E downwards.

[0190] Air discharged from the motor exhaust port 36E flows between the outer peripheral surface 36F of the motor assembly 7 and the inner peripheral surface of the cylindrical portion 9A of the motor cover 9, and is then discharged from the cover exhaust port 9C. For example... Figure 12 As indicated by the middle arrow, air discharged from the exhaust port 9C to the left flows along the exhaust path 42, and is then discharged to the outside of the main body housing 5 via the filter 27. If the air flowing through the exhaust path 42 contains fine dust particles, the filter 27 collects the dust from the air. The air with the dust collected by the filter 27 is then discharged to the outside of the main body housing 5. In this embodiment, the exhaust path 42 is configured to surround the motor housing 9. Due to the relatively long length of the exhaust path 42, noise generation is suppressed.

[0191] In this embodiment, a retaining member 30 is provided to suppress the transmission of vibration from the motor assembly 7 to the motor housing 9. By suppressing the transmission of vibration to the motor housing 9, the transmission of vibration from the motor assembly 7 to the main body housing 5 is also suppressed. Since the vibration of the main body housing 5 is suppressed, noise generation is also suppressed.

[0192] [Effect]

[0193] As described above, in this embodiment, the dust collector 1 includes: a main housing 5 having a housing inlet 26; a motor assembly 7 disposed inside the main housing 5, including a fan 34 and a motor 35 that rotates the fan 34 and generates an attractive force at the housing inlet 26; and a blockage suppression section 37 for suppressing blockage at the housing inlet 26. The blockage suppression section 37 includes: a wall portion 38 disposed around at least a portion of the housing inlet 26, and a venting portion 39 disposed on the wall portion 38.

[0194] According to the above configuration, by providing the blockage suppression part 37, the blockage of the housing suction inlet 26 is suppressed. Therefore, the reduction in the suction function of the dust collector 1 is suppressed. The blockage suppression part 37 has a wall portion 38 disposed around at least a portion of the housing suction inlet 26. For example, even if the dust bag 17 bulges, the dust bag 17 will still contact the wall portion 38, thereby suppressing the blockage of the housing suction inlet 26 by the dust bag 17. By providing a venting part 39 in the wall portion 38, the ventilation path to the housing suction inlet 26 is ensured. Therefore, the reduction in the suction function of the dust collector 1 is suppressed.

[0195] In one embodiment, the wall portion 38 includes a surrounding rib 38 configured to surround the housing intake 26 and protrude toward the outer side of the main housing 5.

[0196] According to the above configuration, since the surrounding rib 38 is provided in a manner that surrounds the housing suction port 26, even if the dust collection bag 17 bulges, the situation where the housing suction port 26 is blocked by the dust collection bag 17 can be effectively suppressed.

[0197] In one embodiment, the ventilation portion 39 includes a recess 39 disposed in the surrounding rib 38.

[0198] According to the above configuration, by providing a recess 39 in the wall portion 38, the ventilation path to the suction port 26 of the outer casing is ensured. As a result, the reduction of the suction function of the dust collector 1 is suppressed.

[0199] In the embodiment, the width Wa of the recess 39 is greater than the depth Da of the recess 39.

[0200] Based on the above configuration, the ventilation path to the housing intake 26 can be properly ensured.

[0201] In one embodiment, the dust collector 1 includes a grid rib 40 disposed at the suction port 26 of the outer casing.

[0202] According to the above configuration, the passage of foreign objects through the outer shell suction port 26 is suppressed by the lattice ribs 40.

[0203] In this embodiment, the lattice ribs 40 protrude outward toward the outer side of the main body shell 5.

[0204] According to the above configuration, the lattice ribs 40 are formed to bulge outwards towards the outer side of the main body shell 5, allowing air to flow laterally through the ventilation passages between the lattice ribs 40. Thus, air can flow smoothly through the ventilation passages between the lattice ribs 40. That is, air can flow smoothly into the shell intake port 26.

[0205] In the implementation, the protrusion Ha of the surrounding rib 38 is greater than the protrusion Hb of the grid rib 40.

[0206] According to the above configuration, since the protrusion Ha of the surrounding rib 38 is greater than the protrusion Hb of the grid rib 40, even if the dust collection bag 17 bulges, it can effectively prevent the outer shell suction port 26 from being blocked by the dust collection bag 17.

[0207] In one embodiment, the dust collector 1 includes a filter 8 disposed at the suction port 26 of the housing.

[0208] According to the above configuration, if the air drawn in through the housing intake 26 contains dust, the dust is recovered by the filter 8. Therefore, the situation where dust-containing air is drawn in through the housing intake 26 is suppressed.

[0209] In one embodiment, the filter 8 is configured to cover the housing inlet 26 from the outside of the main housing 5.

[0210] Based on the above configuration, filter 8 can effectively recover dust contained in the air.

[0211] In one embodiment, the wall portion 38 includes a surrounding rib 38 configured to surround the housing intake 26 and project outward toward the main housing 5. The filter 8 is disposed inside the surrounding rib 38.

[0212] Based on the above configuration, it is possible to effectively prevent the housing intake 26 from being blocked by the dust collection bag 17, and it is also possible to effectively prevent dust-containing air from being drawn into the housing intake 26.

[0213] In one embodiment, the vent 39 overlaps with at least a portion of the side surface 8A of the filter 8.

[0214] According to the above configuration, air passing through the vent 39 flows into the interior of the filter 8 from the side 8A and is then drawn in by the housing intake 26. That is, by the overlap of at least a portion of the vent 39 with the side 8A of the filter 8, the air passage to the housing intake 26 is ensured.

[0215] In this embodiment, the filter 8 is larger in shape than the housing inlet 26.

[0216] Based on the above configuration, it is possible to effectively suppress the situation where dust-containing air is drawn in by the housing intake port 26.

[0217] In one embodiment, the dust collector 1 includes a fixing rib 41 that is disposed around at least a portion of the housing inlet 26 and protrudes outward toward the main housing 5 for fixing the filter 8.

[0218] Based on the above configuration, the housing intake 26 and the filter 8 are positioned.

[0219] In this embodiment, the dust collector 1 includes a housing 3 for containing dust. The main outer shell 5 is connected to the housing 3 with its outer shell suction port 26 facing the interior space of the housing 3.

[0220] Based on the above configuration, the reduction in the suction function from the housing 3 to the main outer shell 5 is suppressed.

[0221] In this embodiment, the dust collection bag 17 is disposed inside the housing 3. The blockage suppression part 37 suppresses the possibility of the housing suction inlet 26 being blocked by the dust collection bag 17.

[0222] Based on the above configuration, even if the dust collection bag 17 disposed in the internal space of the housing 3 bulges, the reduction in the suction function of the dust collector 1 will be suppressed.

[0223] In one embodiment, the dust collector 1 includes: a main body housing 5; a motor assembly 7 disposed inside the main body housing 5, having a motor 35 and a motor housing 36 for housing the motor 35; and a retaining member 30 having a first surface 301 that contacts at least a portion of the outer peripheral surface 36F of the motor assembly 7 disposed around the rotation axis AX of the motor 35, and a second surface 302 that contacts at least a portion of the end face of the motor assembly 7 connected to the end of the outer peripheral surface 36F, and for suppressing the transmission of vibration of the motor assembly 7.

[0224] According to the above configuration, since the vibration of the motor assembly 7 is suppressed from being transmitted to the surroundings by the retaining member 30, the noise generated from the dust collector 1 is suppressed.

[0225] In one embodiment, the retaining member 30 has a recess 303 that covers a portion of the end face and the outer peripheral surface 36F. The inner surface of the recess 303 includes a first surface 301 and a second surface 302.

[0226] According to the above configuration, the retaining member 30, which has a recess 303, covers the motor assembly 7 and makes appropriate contact with the motor assembly 7. This effectively suppresses the transmission of vibrations from the motor assembly 7 to the surrounding environment.

[0227] In this embodiment, the rotation shaft AX extends in the vertical direction. The end face includes the upper surface 36G of the motor assembly 7. The retaining member 30 has a recess 303 that covers the upper portion of the upper surface 36G and the outer peripheral surface 36F. The inner peripheral surface of the recess 303 includes a first surface 301. The top surface of the recess 303 includes a second surface 302.

[0228] According to the above configuration, the retaining member 30, which has a recess 303, covers the motor assembly 7 from above, and the retaining member 30 makes proper contact with the motor assembly 7. This effectively suppresses the transmission of vibrations from the motor assembly 7 to the surrounding environment.

[0229] In one embodiment, the dust collector 1 includes a motor cover 9 that covers the motor assembly 7 inside the main body housing 5. A retaining member 30 is disposed between the motor assembly 7 and the motor cover 9 and suppresses the transmission of vibration from the motor assembly 7 to the motor cover 9.

[0230] According to the above configuration, an airflow path is formed between the main body housing 5 and the motor cover 9. In addition, since the transmission of vibration from the motor assembly 7 to the motor cover 9 is suppressed by the retaining member 30, the noise generated from the dust collector 1 can be effectively suppressed.

[0231] In one embodiment, the retaining component 30 is in contact with at least a portion of the motor housing 9.

[0232] According to the above configuration, the transmission of vibration from the motor assembly 7 to the motor cover 9 is suppressed.

[0233] In one embodiment, the retaining member 30 has a protrusion 30C that protrudes radially outward toward the rotation axis AX. The motor cover 9 has a retaining portion 9D that holds the protrusion 30C.

[0234] According to the above configuration, since the contact area between the retaining member 30 and the motor cover 9 is reduced, the transmission of vibration from the motor assembly 7 to the motor cover 9 can be effectively suppressed. Furthermore, since the protrusion 30C functions as a stopper for the rotation of the retaining member 30, the relative rotation between the retaining member 30 and the motor cover 9 is suppressed.

[0235] In one embodiment, a motor exhaust port 36E is provided on at least a portion of the outer peripheral surface 36F of the motor housing 36. The retaining member 30 has a protrusion 30C that contacts the motor cover 9, and a cover portion 30D that is opposite to the motor exhaust port 36E and separates from the motor cover 9.

[0236] According to the above configuration, since the contact area between the retaining member 30 and the motor cover 9 is reduced, the transmission of vibration from the motor assembly 7 to the motor cover 9 can be effectively suppressed. Furthermore, since the protrusion 30C functions as a stopper for the rotation of the retaining member 30, relative rotation between the retaining member 30 and the motor cover 9 is suppressed. Additionally, the cover portion 30D can guide the air discharged from the motor exhaust port 36E.

[0237] In one embodiment, the dust collector 1 includes a cover support member 32 disposed between the main body housing 5 and the motor cover 9 and used to suppress the transmission of vibration from the motor cover 9 to the main body housing 5.

[0238] According to the above configuration, since the transmission of vibration from the motor cover 9 to the main body housing 5 is suppressed by the cover support member 32, the noise generated from the dust collector 1 can be effectively suppressed.

[0239] In this embodiment, the dust collector 1 includes a housing 3 for containing dust. The main body shell 5 includes a housing cover 19 that covers the opening 18 of the housing 3; and a shroud 20 that forms an internal space between itself and the housing cover 19 for the motor cover 9 to be disposed. The shroud support member 32 includes a first shroud support member 321 disposed between the shroud 20 and the motor cover 9.

[0240] According to the above configuration, since the transmission of vibration from the motor cover 9 to the rectifier cover 20 is suppressed by the first cover support member 321, the noise generated from the dust collector 1 can be effectively suppressed.

[0241] In this embodiment, the opening 18 of the housing 3 is located at the upper end of the housing 3. The housing cover 19 covers the opening 18 of the housing 3 from above. The fairing 20 is disposed above the housing cover 19. The first cover support member 321 is disposed between the fairing 20 and the upper part of the motor cover 9.

[0242] According to the above configuration, since the transmission of vibration from the motor cover 9 to the rectifier cover 20 is suppressed by the first cover support member 321, the noise generated from the dust collector 1 can be effectively suppressed.

[0243] In this embodiment, the rotation shaft AX extends in the vertical direction. The motor cover 9 has a cylindrical portion 9A disposed around the rotation shaft AX and a top plate portion 9B connected to the upper end of the cylindrical portion 9A. The first cover support member 321 is an annular shape disposed on the upper surface of the top plate portion 9B.

[0244] According to the above configuration, the first cover support member 321 can effectively suppress the transmission of vibration from the motor cover 9 to the fairing 20.

[0245] In this embodiment, the dust collector 1 includes a housing 3 for containing dust. The main body shell 5 includes a housing cover 19 that covers the opening 18 of the housing 3. The cover support member 32 includes a second cover support member 322 disposed between the housing cover 19 and the motor cover 9.

[0246] According to the above configuration, since the transmission of vibration from the motor cover 9 to the housing cover 19 is suppressed by the second cover support member 322, the noise generated from the dust collector 1 can be effectively suppressed.

[0247] In this embodiment, the opening 18 of the housing 3 is located at the upper end of the housing 3. The housing cover 19 covers the opening 18 of the housing 3 from above. The motor cover 9 is disposed above the housing cover 19. The second cover support member 322 is disposed between the lower part of the housing cover 19 and the motor cover 9.

[0248] According to the above configuration, since the transmission of vibration from the motor cover 9 to the housing cover 19 is suppressed by the second cover support member 322, the noise generated from the dust collector 1 can be effectively suppressed.

[0249] In this embodiment, the rotating shaft AX extends in the vertical direction. The motor cover 9 has a cylindrical portion 9A disposed around the rotating shaft AX and a top plate portion 9B connected to the upper end of the cylindrical portion 9A. The cylindrical portion 9A has a cover exhaust port 9C extending upward from the lower end of the cylindrical portion 9A. The second cover support member 322 is curved and disposed along the lower end of the cylindrical portion 9A.

[0250] According to the above configuration, the second cover support member 322 can effectively suppress the transmission of vibration from the motor cover 9 to the housing cover 19. In addition, the situation where the cover exhaust port 9C becomes smaller or blocked due to the second cover support member 322 is suppressed.

[0251] In one embodiment, the dust collector 1 includes a motor support member 31 disposed between the main body housing 5 and the motor assembly 7 and used to suppress vibrations transmitted from the motor assembly 7 to the main body housing 5.

[0252] According to the above configuration, since the transmission of vibration from the motor assembly 7 to the main housing 5 is suppressed by the motor support member 31, the noise generated from the dust collector 1 can be effectively suppressed.

[0253] In this embodiment, the dust collector 1 includes a housing 3 for collecting dust. The main body housing 5 includes a housing cover 19 that covers an opening 18 located at the upper end of the housing 3 from above. A motor support member 31 is disposed between the lower part of the motor assembly 7 and the housing cover 19.

[0254] According to the above configuration, since the transmission of vibration from the motor assembly 7 to the housing cover 19 is suppressed by the motor support member 31, the noise generated from the dust collector 1 can be effectively suppressed.

[0255] In one embodiment, the motor support member 31 has a cylindrical portion 31A that contacts the lower part of the motor assembly 7, and a rib 31B that protrudes downward from the cylindrical portion 31A and contacts the housing cover 19.

[0256] According to the above configuration, the motor support component 31 can effectively suppress the transmission of vibration from the motor assembly 7 to the housing cover 19.

[0257] In one embodiment, the dust collector 1 includes: a cover support member 32 disposed between the main body housing 5 and the motor cover 9, for suppressing the transmission of vibration from the motor cover 9 to the main body housing 5; and a motor support member 31 disposed between the main body housing 5 and the motor assembly 7, for suppressing the transmission of vibration from the motor assembly 7 to the main body housing 5. The retaining member 30, the cover support member 32, and the motor support member 31 are separated from each other.

[0258] Based on the above configuration, since the retaining component 30, the cover support component 32, and the motor support component 31 are separate components, the transmission of vibration from the motor assembly 7 to the main housing 5 can be effectively suppressed. Therefore, noise generated from the dust collector 1 can be effectively suppressed. Furthermore, the workability during the assembly of the dust collector 1 is improved.

[0259] In one embodiment, the dust collector 1 includes a cover support member 32 disposed between the main body housing 5 and the motor cover 9. A retaining member 30 is used to suppress the transmission of vibration from the motor assembly 7 to the motor cover 9. The cover support member 32 is used to suppress the transmission of vibration from the motor cover 9 to the main body housing 5.

[0260] Based on the above configuration, the transmission of vibration from the motor assembly 7 to the main housing 5 can be effectively suppressed. Therefore, noise generated from the dust collector 1 can be effectively suppressed.

[0261] In one embodiment, the dust collector 1 includes: a housing 3 for containing dust, a main housing 5 disposed above the housing 3, a battery assembly 10 disposed on the side of the main housing 5, and a filter 27 disposed adjacent to the battery assembly 10 on the side of the main housing 5 and through which air discharged from the main housing 5 passes.

[0262] According to the above configuration, since the filter 27 is disposed adjacent to the battery assembly 10 on the side of the main housing 5, the enlargement of the dust collector 1 is suppressed. For example, if the filter 27 is disposed inside the housing 3, the housing 3 needs to be enlarged to ensure the capacity of the housing 3. In particular, if both the filter 27 and the dust bag 17 are disposed inside the housing 3, the housing 3 needs to be enlarged to allow the dust bag 17 to expand sufficiently. When the housing 3 is enlarged, the dust collector 1 as a whole may become enlarged. According to the above configuration, since the filter 27 is disposed on the side of the main housing 5, the dust bag 17 disposed inside the housing 3 can expand sufficiently even without enlarging the housing 3. Since the housing 3 does not need to be enlarged, the enlargement of the dust collector 1 is suppressed. In addition, if the air discharged from the main housing 5 contains dust, the dust is collected by the filter 27, and therefore, clean air is discharged to the outside of the main housing 5.

[0263] In one embodiment, the battery assembly part 10 is disposed at the center of the main body housing 5 in the left-right direction. The battery assembly part 10 is disposed at the rear of the main body housing 5 in the front-back direction.

[0264] According to the above configuration, since the battery assembly part 10 is located in the center of the main body housing 5 in the left-right direction and in the rear of the main body housing 5 in the front-back direction, the large size of the main body housing 5 is suppressed.

[0265] In one embodiment, the filter 27 is disposed adjacent to the right side of the battery assembly 10.

[0266] Based on the above configuration, the enlargement of the main body shell 5 is suppressed.

[0267] In one embodiment, the dust collector 1 includes a motor assembly 7 disposed inside the main body housing 5 and comprising a fan 34 and a motor 35 for rotating the fan 34. The motor assembly 7 is disposed in the center of the main body housing 5 in the left-right direction.

[0268] Based on the above configuration, the large size of the main body shell 5 is suppressed. In addition, the weight balance of the main body shell 5 in the left-right direction is well presented.

[0269] In one embodiment, the dust collector 1 includes a housing suction port 16 located at the front of the housing 3 and which is attracted by a motor assembly 7.

[0270] Based on the above configuration, since the battery assembly 10 is located at the rear of the main housing 5 and the housing inlet 16 is located at the front of the housing 3, the large size of the dust collector 1 is suppressed.

[0271] In this embodiment, the positions of the housing intake 16, at least a portion of the motor assembly 7, and at least a portion of the battery assembly 10 are aligned in the left-right direction.

[0272] Based on the above configuration, the large size of the main casing 5 is suppressed. In addition, the weight balance of the dust collector 1 in the left-right direction is well presented. Furthermore, since a centerline CL is defined that passes through the center of the dust collector 1 in the left-right direction and extends along the front-back direction, the shape of the dust collector 1 is substantially linearly symmetrical with respect to the centerline CL, thus presenting a good visual aesthetic for the dust collector 1.

[0273] In one embodiment, the dust collector 1 includes a filter unit assembly 29 located on the side of the main housing 5, further rearward than the motor assembly 7 and adjacent to the battery assembly 10. A filter unit 12, including a filter 27 and a filter housing 28 that holds the filter 27, is assembled in the filter unit assembly 29. The filter 27 is positioned opposite the exhaust port 28D of the filter housing 28.

[0274] According to the above configuration, when the air discharged from the main body housing 5 contains dust, the filter 27 can recover the dust from the air. As a result, clean air is discharged from the filter 27 to the outside of the main body housing 5.

[0275] In this embodiment, the filter 27 is fixed to the filter housing 28.

[0276] With the above configuration, since the filter 27 is fixed to the filter housing 28, the replacement of the filter unit 12 becomes easy. Furthermore, the maintainability of the filter unit 12 is improved.

[0277] In one embodiment, the dust collector 1 includes: a motor assembly 7 disposed inside the main body housing 5, and including a fan 34 and a motor 35 for rotating the fan 34; and a motor cover 9 disposed inside the main body housing 5 to cover the motor assembly 7, and having a cover exhaust port 9C. An exhaust flow path 42 connecting the cover exhaust port 9C and the housing exhaust port 28D is provided inside the main body housing 5.

[0278] According to the above configuration, the air discharged from the hood exhaust port 9C is discharged to the outside of the main body shell 5 via the outer shell exhaust port 28D.

[0279] In this embodiment, the rotation shaft AX of the motor 35 extends in the vertical direction. The motor cover 9 has a cylindrical portion 9A disposed around the rotation shaft AX and a top plate portion 9B disposed at the upper end of the cylindrical portion 9A. The cover exhaust port 9C is configured to extend upward from the lower end of the cylindrical portion 9A.

[0280] According to the above configuration, air is discharged from the hood exhaust port 9C, which is longer in the vertical direction. When air is discharged from the hood exhaust port 9C, the generation of noise such as wind noise is suppressed.

[0281] In this embodiment, the outer casing vent 28D faces a different direction than the cover vent 9C.

[0282] Based on the above configuration, while suppressing the enlargement of the main body shell 5, the length of the exhaust flow path 42 can be increased. By increasing the length of the exhaust flow path 42, the generation of noise caused by the air flowing through it is suppressed.

[0283] In this embodiment, the outer casing exhaust port 28D faces a first direction, and the cover exhaust port 9C faces a second direction different from the first direction. The angle θ between the first direction and the second direction is 180 degrees or more and 270 degrees or less.

[0284] Based on the above configuration, while suppressing the enlargement of the main body shell 5, the length of the exhaust flow path 42 can be increased. By increasing the length of the exhaust flow path 42, the generation of noise caused by the air flowing through it is suppressed.

[0285] In this embodiment, the outer casing vent 28D faces the right rear, and the cover vent 9C faces the left.

[0286] Based on the above configuration, while suppressing the enlargement of the main body shell 5, the length of the exhaust flow path 42 can be increased. By increasing the length of the exhaust flow path 42, the generation of noise caused by the air flowing through it is suppressed.

[0287] In one embodiment, the dust collector 1 includes a sound-absorbing component 43 disposed in the exhaust flow path 42.

[0288] According to the above configuration, by arranging a sound-absorbing component 43 on the exhaust flow path 42, the noise generated by the air flowing through the exhaust flow path 42 is suppressed.

[0289] In this embodiment, the dust collector 1 includes a controller 15 for controlling the motor 35. The controller 15 is located in or adjacent to the exhaust flow path 42.

[0290] According to the above configuration, by positioning the controller 15 inside the exhaust flow path 42, the cooling performance of the controller 15 is improved. By positioning the controller 15 outside the exhaust flow path 42 and adjacent to it, the possibility of the controller 15 malfunctioning due to static electricity is suppressed.

[0291] In one embodiment, the dust collector 1 includes a first accessory receiving section, namely accessory receiving section 24, which is provided adjacent to the left side of the battery assembly section 10 on the side of the main body housing 5 and is capable of holding accessories.

[0292] According to the above configuration, since the filter 27 is arranged adjacent to the right side of the battery assembly 10 and the accessory receiving part 24 is arranged adjacent to the left side of the battery assembly 10, clean air is discharged to the outside of the main body housing 5 through the filter 27 while the enlargement of the main body housing 5 is suppressed, and the accessories of the dust collector 1 are held in the accessory receiving part 24.

[0293] In one embodiment, the dust collector 1 includes a second accessory receiving section, namely accessory receiving section 25, which is located in the housing 3 further rearward than the battery assembly section 10 and is capable of holding accessories.

[0294] According to the above configuration, with the enlargement of the dust collector 1 suppressed, the accessories are held in the accessory storage section 25.

[0295] [Other Implementation Methods]

[0296] Figure 39 This diagram illustrates the venting portion 39 in other embodiments. In the above embodiment, the venting portion 39 provided on the surrounding rib 38 is a recessed portion extending upward from the lower end of the surrounding rib 38. For example... Figure 39 As shown, the vent 39 can also be a vent 390 provided on the surrounding rib 38. The vent 390 is located further upward than the lower end of the surrounding rib 38. The vent 390 is configured to penetrate both the outer and inner surfaces of the surrounding rib 38. The filter 8 is disposed inside the surrounding rib 38. The side 8A of the filter 8 protrudes from the vent 390. Even if the dust bag 17 inflates to contact the lower end face 38B of the surrounding rib 38, the vent 390 will not be blocked by the dust bag 17. Through the vent 390, the ventilation path from the internal space of the housing 3 to the outer casing suction port 26 is ensured.

Claims

1. A dust collector, characterized in that, The dust collector includes: a main housing having a housing suction inlet; a motor assembly disposed inside the main housing, including a fan and a motor for rotating the fan and generating an attractive force at the housing suction inlet; and a blockage suppression section for suppressing blockage at the housing suction inlet. The occlusion suppression part has: a wall portion disposed around at least a portion of the housing inlet, and a venting portion disposed on the wall portion.

2. The dust collector according to claim 1, characterized in that, The wall portion includes a surrounding rib configured to surround the housing intake and protrude toward the outer side of the main housing.

3. The dust collector according to claim 2, characterized in that, The ventilation section includes a recess disposed in the surrounding rib.

4. The dust collector according to claim 3, characterized in that, The width of the recess is greater than the depth of the recess.

5. The dust collector according to claim 2, characterized in that, The dust collector includes: grid ribs disposed at the suction inlet of the outer casing.

6. The dust collector according to claim 5, characterized in that, The lattice ribs protrude outwards toward the outer side of the main body shell.

7. The dust collector according to claim 6, characterized in that, The protrusion of the surrounding rib is greater than the protrusion of the lattice rib.

8. The dust collector according to claim 1, characterized in that, The dust collector includes a filter disposed at the suction inlet of the housing.

9. The dust collector according to claim 8, characterized in that, The filter is configured to cover the housing inlet from the outside of the main housing.

10. The dust collector according to claim 9, characterized in that, The wall portion includes: a surrounding rib configured to surround the housing intake and protrude outward toward the outer side of the main housing. The filter is disposed inside the surrounding rib.

11. The dust collector according to claim 10, characterized in that, The venting section overlaps with at least a portion of the side of the filter.

12. The dust collector according to claim 9, characterized in that, The filter is larger in shape than the intake port of the housing.

13. The dust collector according to claim 8, characterized in that, The dust collector includes: a fixing rib disposed around at least a portion of the inlet of the housing and protruding outward toward the outer side of the main housing for securing the filter.

14. The dust collector according to claim 1, characterized in that, The dust collector includes a housing for collecting dust. The main outer shell is connected to the housing with its suction port facing the interior space of the housing.

15. The dust collector according to claim 14, characterized in that, A dust collection bag is installed inside the housing. The blockage suppression unit suppresses the situation where the housing inlet is blocked by the dust collection bag.

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