Vacuum cleaner

Abstract

A vacuum cleaner includes a housing defining a longitudinal axis, an inlet defining an opening, a cyclone chamber configured to receive debris from the inlet, the debris being provided into the housing through the opening, the cyclone chamber being annular, defining a central opening and a debris opening positioned at a radial outer side of the central opening. The vacuum cleaner includes a dirt collection chamber configured to receive the debris from the cyclone chamber via the debris opening, a suction motor assembly positioned within the housing and configured to generate an airflow through the inlet and the cyclone chamber, and an airflow passage extending from the central opening of the cyclone chamber to the suction motor assembly. The suction motor assembly draws the airflow from the cyclone chamber through the airflow passage. The airflow passage extends downwardly from the cyclone chamber and into an interior of the dirt collection chamber.

Description

[0001] Cross-reference to related applications This application claims priority to U.S. Provisional Application No. 63 / 658,505, filed June 11, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model relates to vacuum cleaners, and more specifically to cyclone vacuum cleaners. Background Technology

[0003] Vacuum cleaners typically consist of a cyclone chamber, a dust collection chamber, and a suction motor assembly, forming an airflow path between these components. There remains a need for vacuum cleaner configurations that allow users easy access to the internal airflow components for cleaning and maintenance. Utility Model Content

[0004] In some aspects, the present invention relates to a vacuum cleaner comprising: a housing defining a longitudinal axis; an inlet defining an opening through which debris is supplied into the housing; a cyclone chamber configured to receive debris from the inlet, the cyclone chamber being annular and defining a central opening and a debris opening located radially outward of the central opening; a dust collection chamber configured to receive debris from the cyclone chamber via the debris opening; a suction motor assembly positioned within the housing and configured to generate airflow through the inlet and the cyclone chamber; and an airflow passage extending from the central opening of the cyclone chamber to the suction motor assembly, wherein the suction motor assembly is configured to draw airflow from the cyclone chamber through the airflow passage, and wherein the airflow passage extends downward from the cyclone chamber and into the interior of the dust collection chamber.

[0005] In some aspects, the technology described in this utility model relates to a vacuum cleaner that further includes a partition positioned within a housing to separate a cyclone chamber from a dust collection chamber, wherein a debris opening is formed within the partition, and wherein an airflow passage passes through the partition.

[0006] In some respects, the technology described in this invention relates to vacuum cleaners in which a partition is movable relative to the housing to provide access to the interior of the cyclone chamber.

[0007] In some aspects, the technology described in this invention relates to a vacuum cleaner, wherein the inlet is located outside the rest of the housing, and the vacuum cleaner further includes an internal inlet channel located within the housing and extending between the inlet and the cyclone chamber, wherein a partition is movable relative to the housing to provide access to the interior of the internal inlet channel.

[0008] In some respects, the technology described in this invention relates to a vacuum cleaner, wherein an airflow channel extends downward from a central opening and then rearward to a suction motor assembly.

[0009] In some respects, the technology described in this utility model relates to a vacuum cleaner that further includes a pre-motor filter positioned within an airflow channel and arranged generally perpendicular to the longitudinal axis of the housing, such that airflow through the pre-motor filter through the plane perpendicular to the pre-motor filter is generally parallel to the longitudinal axis of the housing.

[0010] In some respects, the technology described in this invention relates to a vacuum cleaner in which the airflow channel is centrally located within the dust collection chamber, such that the dust collection chamber extends to either side of the width direction of the airflow channel.

[0011] In some respects, the technology described in this utility model relates to a vacuum cleaner, wherein at least a portion of the airflow channel is integrally formed with the dust collection chamber as a single component.

[0012] In some aspects, the technology described in this invention relates to a vacuum cleaner, wherein the dust collection chamber is movable relative to the housing from a closed position to an open position to allow the dust collection chamber to be emptied, wherein at least a portion of the airflow passage is movable together with the dust collection chamber between the open and closed positions.

[0013] In some respects, the technology described in this utility model relates to a vacuum cleaner that further includes a grille positioned at a central opening and configured to prevent large debris inside the cyclone chamber from entering the airflow channel.

[0014] In some aspects, the technology described in this utility model relates to a vacuum cleaner comprising: a housing defining a longitudinal axis; an inlet located outside the remainder of the housing, defining an opening through which debris is supplied into the housing, the inlet extending generally parallel to the longitudinal axis; a cyclone chamber configured to receive debris from the inlet, the cyclone chamber being annular and defining a central opening and a debris opening located radially outward of the central opening; and an internal inlet passage entirely within the housing and extending between the inlet and the cyclone chamber, the dust collection chamber being configured to... The system includes: receiving debris from the cyclone chamber via a debris opening; a suction motor assembly positioned within the housing and configured to generate airflow through an inlet, an internal inlet passage, and the cyclone chamber; an airflow passage extending from the central opening of the cyclone chamber to the suction motor assembly, wherein the suction motor assembly is configured to draw airflow from the cyclone chamber through the airflow passage; and a baffle positioned within the housing to separate the cyclone chamber from the dust collection chamber, wherein a debris opening is formed within the baffle, and wherein the baffle is movable relative to the housing to provide access to the interior of the cyclone chamber and the interior of the internal inlet passage.

[0015] In some aspects, the technology described in this utility model relates to a vacuum cleaner, wherein a partition defines at least a portion of the cyclone chamber and at least a portion of the lower surface of the internal inlet passage.

[0016] In some respects, the technology described in this utility model relates to a vacuum cleaner in which the partition can rotate about a hinge.

[0017] In some respects, the technology described in this invention relates to a vacuum cleaner, wherein the dust collection chamber is movable relative to the housing between a closed position and an open position, and wherein when the dust collection chamber is in the open position, a partition is accessible to move relative to the housing.

[0018] In some aspects, the technology described in this utility model relates to a vacuum cleaner that further includes at least one adjustment mechanism that selectively holds a partition in a use position and is rotatable away from the partition to allow the partition to open.

[0019] In some respects, the technology described in this invention relates to a vacuum cleaner in which the internal inlet channel is non-linear and offset from the longitudinal axis of the housing, which allows airflow to be introduced tangentially into the cyclone chamber.

[0020] In some aspects, the present invention relates to a vacuum cleaner comprising: a housing defining a longitudinal axis; an inlet located outside the remainder of the housing, defining an opening through which debris is supplied into the housing; a cyclone chamber configured to receive debris from the inlet, the cyclone chamber being annular and defining a central opening and a debris opening located radially outward of the central opening; a dust collection chamber configured to receive debris from the cyclone chamber via the debris opening; and a suction motor assembly positioned within the housing and configured to generate... Airflow through the inlet and cyclone chamber; and airflow passage extending from the central opening of the cyclone chamber to the suction motor assembly, wherein the suction motor assembly is configured to draw airflow from the cyclone chamber through the airflow passage, wherein the housing defines a hinge pin extending generally perpendicular to the longitudinal axis, wherein the dust collection chamber defines an L-shaped bracket extending above and around the hinge pin, which allows the dust collection chamber to rotate about the axis of the hinge pin between a closed position and an open position, and wherein when the dust collection chamber is in the open position, the L-shaped bracket can be removed from the hinge pin, which allows the dust collection chamber to be removed from the housing.

[0021] In some respects, the technology described in this utility model relates to a vacuum cleaner in which the L-shaped bracket of the dust collection chamber cannot be removed from the hinge pin in the closed position.

[0022] In some respects, the technology described in this invention relates to a vacuum cleaner in which most of the hinge pin is visible and is located on the exterior of the rest of the housing.

[0023] In some aspects, the present invention relates to a vacuum cleaner that further includes a latch assembly configured to secure a dust collection chamber in a closed position. The latch assembly includes a handle, a latch arm, and a catch plate, wherein the handle is a user-operated member coupled to and rotatable relative to the dust collection chamber, wherein the latch arm engages an inverted U-shaped bar with the handle, and wherein the catch plate defines a hook supported by a housing, which is engageable by the latch arm when the latch assembly secures the dust collection chamber to the housing in the closed position.

[0024] In some aspects, the technology described in this utility model relates to a vacuum cleaner that further includes a light configured to illuminate a surface to be cleaned by the vacuum cleaner, wherein the light includes a plurality of light-emitting diodes or a plurality of fiber optic cables.

[0025] In some respects, the technology described in this utility model relates to a vacuum cleaner, wherein the suction motor assembly includes a motor, impeller blades, and a foam sleeve, the foam sleeve being positioned around the motor to reduce the peak blade pass frequency caused by the speed and number of impeller blades.

[0026] In some respects, the technology described in this invention relates to a vacuum cleaner in which the inlet is adjustable relative to the housing, such that the orientation of the distal end of the inlet is rotatable relative to the housing.

[0027] In some aspects, the technology described in this utility model relates to a vacuum cleaner, wherein the lower surface of the housing includes an attachment structure for attaching to a component having a mating attachment structure.

[0028] Other aspects of this invention will become apparent upon careful reading of the detailed description and accompanying drawings. Attached Figure Description

[0029] Figure 1 It is a 3D diagram of a vacuum cleaner.

[0030] Figure 2 yes Figure 1 A side view of a vacuum cleaner.

[0031] Figure 3 yes Figure 1 A side cross-sectional view of a vacuum cleaner.

[0032] Figure 4 It is viewed from below. Figure 1 A cross-sectional view of the inlet channel and cyclone chamber of a vacuum cleaner.

[0033] Figure 5 It is viewed from below. Figure 1 A cross-sectional view of the partition of a vacuum cleaner.

[0034] Figure 6A This is a side view of a part of a vacuum cleaner with the brush assembly in the retracted position.

[0035] Figure 6B yes Figure 6A A partial side view of a portion of a vacuum cleaner, with the brush assembly in the extended position.

[0036] Figure 7 This is a front-view 3D view of a vacuum cleaner with a light assembly.

[0037] Figure 8 yes Figure 1 A three-dimensional view of the hinge assembly of the dust collection chamber of a vacuum cleaner.

[0038] Figure 9 Is it through Figure 1 A cross-sectional side view of the latch assembly of the dust collection chamber of a vacuum cleaner.

[0039] Figure 10 This is a perspective view of an entrance that can be moved between various locations according to one embodiment.

[0040] Figure 11 This is a schematic diagram of an entrance that can be moved between various locations according to another embodiment.

[0041] Figure 12 It is a side view of the entrance, which is movable between various positions according to another embodiment and is shown in the engaged position.

[0042] Figure 13 It is shown in the disengaged position. Figure 12 Side view of the entrance.

[0043] Figure 14 This is a top view of an entrance that can be moved between various locations according to yet another embodiment.

[0044] Figure 15 This is a cross-sectional view of the inlet channel and cyclone chamber of a vacuum cleaner with a variable width inlet channel.

[0045] Figure 16 This is a rear-view perspective view of a vacuum cleaner with an attachment structure.

[0046] Figure 17 It is related to vacuum cleaners (such as...) Figure 1 A top-view perspective of a floor attachment tool used with a vacuum cleaner.

[0047] Figure 18 yes Figure 17 A three-dimensional view of the lower part of the floor attachment tool.

[0048] Figure 19 This is a top perspective view of another floor attachment tool with lighting components.

[0049] Figure 20 This is a perspective view of a vacuum cleaner according to another embodiment.

[0050] Figure 21 yes Figure 20 A cross-sectional side view of an electric vacuum cleaner.

[0051] Figure 22 yes Figure 20 A three-dimensional sectional view of the partition of a vacuum cleaner.

[0052] Figure 23 yes Figure 20 A rear-view 3D view of a vacuum cleaner.

[0053] Figure 24 yes Figure 20 A front-view 3D view of a vacuum cleaner.

[0054] Figure 25 It was cut at the partition. Figure 20 A cross-sectional view of the lower part of a vacuum cleaner.

[0055] Figure 26 This is a left-side cross-sectional view of a vacuum cleaner according to another embodiment.

[0056] Figure 27 yes Figure 26 A rear-view 3D view of a vacuum cleaner.

[0057] Figure 28 yes Figure 26 A cross-sectional view of the right side of an electric vacuum cleaner.

[0058] Figure 29 This is a cross-sectional side view of a vacuum cleaner according to another embodiment.

[0059] Figure 30 This is a 3D view of a vacuum cleaner with multiple different light-emitting diode (LED) sections.

[0060] Figure 31 This is a 3D diagram of a replacement partition for a vacuum cleaner.

[0061] Figure 32 yes Figure 31 A cross-sectional side view of the alternative partition.

[0062] Figure 33 It is relative to Figure 1 A three-dimensional view of the lower part of a crevice tool for positioning vacuum cleaners.

[0063] Figure 34 This is a perspective view of the cyclone chamber according to the implementation method. Detailed Implementation

[0064] Before explaining any embodiment of this utility model in detail, it should be understood that the application of this utility model is not limited to the details of the construction and arrangement of the components described in the following description or shown in the drawings. This utility model can have other embodiments and can be practiced or implemented in various ways.

[0065] Figures 1-5 and Figures 8-9 A vacuum cleaner 1100 is shown, comprising an inlet 1104, a cyclone chamber 1108, a baffle 1112, a dust collection chamber 1116, a pre-motor filter 1120, a suction motor assembly 1124, and an airflow passage 1128 between the pre-motor filter 1120 and the suction motor assembly 1124. The suction motor assembly 1124 draws air and debris (e.g., dust and larger particles and fragments) from the environment (around the vacuum cleaner) into the vacuum cleaner 1100 through the inlet 1104. Air and debris are drawn in through the inlet 1104 and into the cyclone chamber 1108. Within the cyclone chamber 1108, heavier debris falls through the baffle 1112 and into the dust collection chamber 1116. Air within the cyclone chamber 1108 is drawn through a central opening 1156 and downwards into the airflow passage 1128 to reach the pre-motor filter 1120. Airflow is drawn from airflow channel 1128, passes through pre-motor filter 1120 and substantially reaches suction motor assembly 1124, then exits through outlet opening 1132 in vacuum cleaner housing 1136, where air is exhausted from inside vacuum cleaner 1100 back to the environment. In some embodiments, filter 1195 is positioned adjacent to outlet opening 1132 within housing 1136 of vacuum cleaner 1100 to prevent material (e.g., dust, debris) from entering housing 1136 through outlet opening 1132. In some embodiments, filter 1195 is a sound-attenuating foam material responsible for handling frequency peaks in the sound generated by vacuum cleaner 1100. In some embodiments, filter 1195 is formed as an open-cell foam sheet with a thickness of 5 mm. In some embodiments, an additional foam sleeve 1197 is positioned around the motor to further minimize blade-passing frequency peaks caused by the speed and number of impeller blades. In some embodiments, foam sleeve 1197 has a thickness of 15 mm.

[0066] The housing 1136 of the vacuum cleaner 1100 surrounds and encloses the cyclone chamber 1108, the baffle 1112, the pre-motor filter 1120, the suction motor assembly 1124, and the airflow passage 1128. The housing 1136 may also surround a portion of the inlet 1104. A dust collection chamber 1116 is separable from and coupled to the housing 1136. The housing 1136 has a length (longer than its width and height) extending from its front end to its rear end. The inlet 1104 is located at the front end of the housing 1136. A longitudinal axis A11 extends along the length of the vacuum cleaner 1100. The longitudinal axis A11 is generally parallel to the horizontal surface on which the vacuum cleaner 1100 rests. In the illustrated embodiment, the longitudinal axis A11 is also parallel to the longitudinal axis of the inlet 1104.

[0067] The housing 1136 includes a lower surface 1192 resting on a horizontal surface. An upper surface 1196 opposite the lower surface 1192 includes a handle 1182. The handle 1182 includes a grip portion and a front post coupling the grip portion to the remainder of the housing 1136. The grip portion extends longitudinally and is located above the remainder of the housing 1136. The front post of the handle 1182 extends upward at an angle from the upper surface 1196 along a central axis A13. The grip portion of the handle 1182 extends downward at an angle along a central axis A14 (relative to the longitudinal axis A11) as it extends rearward. Although the handle 1182 is described as having a front post and a rear grip portion extending along axes A13, A14, the handle 1182 is also relatively circular, which makes these axes A13, A14 linearly fitted to their respective portions. In the illustrated embodiment, the angle between the two axes A13, A14 is an obtuse angle (e.g., greater than 90 degrees, between 90 and 120 degrees). Housing 1136 includes a battery socket 1186 configured to receive a rechargeable battery (not shown) adjacent to the rear and lower ends of housing 1136. The battery is configured to supply power to the suction motor assembly 1124. The battery socket is angled at approximately 10 degrees (e.g., 5-15 degrees) relative to the longitudinal axis A11 (see insertion axis A16 of battery socket 1186). Figure 1 As shown, the power switch 1118 is located on the handle 1182 (e.g., at the front end of the grip portion) and is movable between an off position and an on position for actuating the vacuum cleaner 1100 between an off state (where the motor assembly 1124 is not activated) and an on state (where the motor assembly 1124 is activated).

[0068] Inlet 1104 is a generally cylindrical channel extending from a first (distal) end 1140 to a second (proximal) end 144. Debris is drawn into the vacuum cleaner 1100 through the distal end 1140. The second end 1144 is located in (e.g., within) the housing 1136 of the vacuum cleaner and supplies debris from inlet 1104 to cyclone chamber 1108. As shown, the axis of inlet 1104 is generally parallel (or collinear) with the longitudinal axis A11 of the vacuum cleaner 1100. In the illustrated embodiment, inlet 1104 includes a tapered opening at the first end 1140, such that the opening is not perpendicular to the axis of the inlet. In other embodiments, the opening may be angled in other ways. The diameter of inlet 1104 widens closer to the second end 1144. In some embodiments, attachments may be attached to the end 1140 of inlet 1104 to provide additional attachments (e.g., brush attachments, crevice tools, etc.) suitable for different surfaces. In other embodiments, inlet 1104 may be replaced by an alternative inlet with a different attachment portion.

[0069] like Figure 4 As shown, the internal inlet passage 1150 is entirely within the housing 1136 and lies between the inlet 1104 (which is primarily outside the housing 1136) and the cyclone chamber 1108. A first end 1154 of the internal inlet passage 1150 is positioned at a second end 1144 of the inlet 1104 to receive airflow and debris from it. The second end 1158 of the internal inlet passage 1150 is directly coupled to the inlet of the cyclone chamber 1108 (e.g., integrally formed therewith) and supplies airflow and debris from the internal inlet passage 1150 to the cyclone chamber 1108. The internal inlet passage 1150 is non-linear and offset from the longitudinal axis A11 of the inlet 1104, which allows dirty air to be tangentially introduced into the cyclone chamber 1108, thereby creating a cyclone airflow within the cyclone chamber 1108. In the illustrated embodiment, the internal inlet channel 1150 defines a first curved portion extending from the first end 1154 toward the second end 1158 and a second curved portion extending from the second end 1158 toward the first end 1154, which causes the channel to deviate from the axis A11 without any rough corners or angles that would otherwise significantly impede airspeed or debris flow.

[0070] Cyclone chamber 1108 is located behind inlet 1104 within housing 1136 and provides a divergence path for debris and airflow drawn in through inlet 1104. Cyclone chamber 1108 includes an outer cylindrical sidewall 1148 through which it receives airflow and debris from inlet 1104. Top wall 1152 covers one end of cyclone chamber, and an annular lower wall 1164 covers the opposite lower end, except for a central opening 1156 and a debris opening 1168 extending therethrough. As shown, central opening 1156 is defined by an inner cylindrical sidewall 1160 nested within outer cylindrical sidewall 1148, which extends upward from lower wall 1164 to extend upward into the interior of cyclone chamber 1108, such that at least a portion of cyclone chamber 1108 has an annular cross-section. In the illustrated embodiment, the inner cylindrical sidewall 1160 extends almost the entire height of the cyclone chamber 1108 (e.g., at least two-thirds of the total height). The lower wall 1164 is at least partially formed by a baffle 1112, which forms a barrier between the cyclone chamber 1108 and the dust collection chamber 1116. In some embodiments, the baffle 1112 also forms a barrier between the cyclone chamber 1108 and the airflow passage 1128. As the airflow is drawn upward and then downward through the central opening 1156, debris is dispersed from the airflow generated by the suction motor assembly 1124, and debris that is too heavy to move upward to the central opening 1156 moves downward through the baffle 1112. In the illustrated embodiment, a grille 1146 is positioned above the opening 1156 to prevent debris from passing through the central opening 1156. As shown, the grille 1146 has a geometric (e.g., hexagonal) pattern, but other designs may be used.

[0071] partition 1112 in Figure 5The image shows in more detail a plate (a generally circular plate with arms, as shown) having a debris opening 1168, through which debris is configured to be transferred from cyclone chamber 1108 to dust collection chamber 1116. The debris opening 1168 is located radially outward from the central opening 1156. As shown, the opening 1168 is formed adjacent to the radial extent of the circular portion of the partition 1112. The opening 1168 has a first width at a first end 1172 and a second width less than the first width at a second end 1176 opposite to the first end 1172. The width of the opening 1168 gradually tapers between the two ends 1172 and 1176 in the direction of the cyclone airflow. The first end 1172 is offset from the second end 1176 by approximately 120 degrees (e.g., 110-130 degrees, 90-150 degrees, greater than 90 degrees), which prevents the opening 1168 from extending around most of the partition 1112. As shown in the figure, opening 1168 covers less than 50% of the baffle. In the illustrated embodiment, opening 1168 is generally C-shaped. Opening 1168 is large enough to allow fairly large debris (which can fit through inlet 1104) to pass through, but its size is otherwise limited to restrict the effect of the circulating airflow within cyclone chamber 1108 on the debris within dust collection chamber 1116. As described in more detail below, airflow passage 1128 also passes through baffle 1112, but unlike opening 1168, it does not provide access to dust collection chamber 1116.

[0072] The eddy current detector gap height is defined between the top of the inner cylindrical sidewall 1160 and the lower side of the top wall 1152, and corresponds to the non-annular portion of the cyclone chamber 1108 above the inner cylindrical sidewall 1160. The separator height is the height of the cyclone chamber 1108 and is defined between the partition 1112 and the top wall 1152. The separator diameter is the diameter of the cyclone chamber 1108 and is defined by the inner surface of the outer cylindrical sidewall 1148. The eddy current detector diameter is defined as the diameter of the central opening 1156. The inlet width is defined as the width of the inner inlet channel 1150, measured perpendicular to the airflow direction through the inner inlet channel 1150, at a location between the two ends 1154, 1158. In some embodiments, the inlet width may be an average inlet width. In the illustrated embodiment, the inlet width is measured perpendicular to the airflow direction at the earliest intersection of the inner inlet channel 1150 and the cyclone chamber 1108. For a separator diameter of 115 mm and an airflow of 40 CFM, the ratio between the separator diameter and the eddy current detector diameter is 3.3 (e.g., 3.0-3.5, 3.3). Additionally, the ratio between the separator diameter and the separator height is 2.3 (e.g., 2.0-2.5, 2.3). Furthermore, the ratio between the separator diameter and the inlet width is 4.6 (e.g., 4.4-4.8, 4.6). Finally, the ratio between the separator height and the eddy current detector height is 3.3 (e.g., 3.0-3.5, 3.3). These ratios maximize separation efficiency while reducing separator drag.

[0073] The partition 1112 includes two adjustment mechanisms 1180 that allow a user to rotate the partition 1112 relative to the lower wall 1164 to remove the partition 1112 and provide access to the interior of the cyclone chamber 1108. As shown, each adjustment mechanism is a tab 1180 coupled to the post 1170 to rotate relative to the partition. When each tab 1180 rotates below the partition 1112, the tab 1180 holds the partition 1112 in a used position (i.e., a locked position) to separate the interior of the cyclone chamber 1108 from the interior of the dust collection chamber 1116. When each tab 1180 rotates away from the partition 1112, the partition 1112 is openable (e.g., removable, rotatable about a hinge 1166) to provide access to the interior of the cyclone chamber 1108. A tab 1180 is located within the dust collection chamber 1116, which allows the partition 1112 to be opened when the dust collection chamber 1116 is opened and / or removed from the rest of the housing 1136. A user can rotate the tab 1180 to open or remove the partition 1112 without tools (i.e., using only fingers). In some embodiments, the adjustment mechanism 1180 allows the partition 1112 to pivot downwards to provide access to the cyclone chamber 1108, while other embodiments allow the partition 1112 to be removed. In the illustrated embodiment, the partition 1112 extends not only below the cyclone chamber 1108 but also below the internal inlet passage 1150. Therefore, when the partition 1112 is opened, the interior of the internal inlet channel 1150 is similarly opened (i.e., the lower side of the channel 1150 is removed), which makes most (e.g., at least half) of the internal inlet channel 1150 between the two ends 1154, 1158 open to facilitate the removal of debris from the internal inlet channel 1150. When the dust collection chamber 1116 is opened, the partition 1112 can be accessed and moved relative to the housing 1136.

[0074] Dust collection chamber 1116 is positioned below cyclone chamber 1108 and partition 1112, and receives debris drawn in through inlet 1104 and through opening 1168 in partition 1112. In some embodiments, dust collection chamber 1116 is formed of a transparent or translucent material, allowing a user to identify the state of dust collection chamber 1116 (empty, partially full, almost full, full, etc.). Dust collection chamber 1116 is located below cyclone chamber 1108 and behind inlet 1104, and defines an internal storage volume for collected debris. Dust collection chamber 1116 can be removed from housing 1136 (as well as inlet 1104 and cyclone chamber 1108) to empty dust collection chamber 1116. In some embodiments, dust collection chamber 1116 is pressed inward (i.e., squeezed on opposite sides) to release clamps coupling dust collection chamber 1116 to housing 1136. In other embodiments, the dust collection chamber 1116 may be flipped down in other ways (e.g., on a hinge) and / or have clips or buttons that can be displaced to separate the dust collection chamber 1116 from the housing 1136.

[0075] Figure 3 and Figure 8 A hinge 1130 is shown for supporting a dust collection chamber 1116 on a housing 1136. As shown, the hinge 1130 is located at the lower side 1192 of the housing 1136 and at the rear edge of the dust collection chamber 1116, such that rotation of the dust collection chamber 1116 relative to the housing 1136 includes downward rotation of the front side of the dust collection chamber 1116. The housing 1136 includes a hinge pin 1122 defining an axis A17 that is generally perpendicular to the longitudinal axis A11. The hinge pin 1122 is supported at each end by a hole 1126 formed in the housing 1136. In other embodiments, the hinge pin 1122 may be integrally formed with the rest of the housing 1136. In the illustrated embodiment, most of the hinge pin 1122 is visible and external to the rest of the housing 1136. The dust collection chamber 1116 includes a hinge 1130, which is formed as an L-shaped bracket 1130 extending above and around the hinge pin 1122. Specifically, the dust collection chamber 1116 rotates between an open and closed position about an axis A17 of the hinge pin 1122, and the hinge pin 1122 rests within the inner corner of the L-shaped bracket in each of the open and closed positions. In some embodiments, when the dust collection chamber 1116 is in the open position (i.e., for evacuation), the dust collection chamber 1116 can slide forward to separate the dust collection chamber 1116 from the hinge pin 1122 and thus from the housing 1136. In the closed position, the geometry of the L-shaped bracket and the housing 1136 prevents the dust collection chamber 1116 from separating from the housing 1136. In some embodiments, when the dust collection chamber 1116 is separated from the housing 1136, the pre-motor filter 1120 can be accessed for cleaning and / or replacement.

[0076] like Figure 9As shown, the dust collection chamber 1116 is secured to the housing in the closed position via a latch assembly 1162. The latch assembly 1162 includes a handle 1138, a latch arm 1142, and a catch plate 1163. The handle 1138 is a user-operated component coupled to the dust collection chamber 1116 and rotatable by the user relative to the dust collection chamber 1116 about axis A18. The latch arm 1142 is a U-shaped rod (e.g., a round rod) with its distal end engaging the handle 1138 and rotatable together about axis A19. The catch plate 1163 defines a hook supported by the housing 1136. When the latch 1162 is in the closed position securing the dust collection chamber 1116 to the housing 1136, the latch plate 1163 is engaged by the latch arm 1142 (i.e., the central portion of the latch arm 1142 extends over the hook of the latch plate 1163). By moving the handle 1138 upward by the user (i.e., rotating the handle about axis A18), the latch arm 1142 disengages from the capture plate 1163 to open the dust collection chamber 1116, thereby providing a gap between the latch arm 1142 and the capture plate 1163, which allows the latch arm 1142 to subsequently rotate away from the capture plate 1163 (about axis A19).

[0077] An airflow channel 1128 extends downward and then rearward from a central opening 1156 to a suction motor assembly 1124, and is a hollow conduit for providing suction airflow between the suction motor assembly 1124 and the cyclone chamber 1108, extending between a first end 1184 at the cyclone chamber 1108 and a second end at the pre-motor filter 1120 and the suction motor assembly 1124. The airflow channel 1128 is centrally located within a dust collection chamber 1116, which extends in front of and to either side of the airflow channel 1128. In some embodiments, the airflow channel and the dust collection chamber 1116 are integrally formed as a single component. Thus, when the dust collection chamber 1116 is opened, the airflow channel 1128 also opens. Therefore, when the dust collection chamber 1116 is opened, the first end 1184 can be accessed for cleaning.

[0078] A pre-motor filter 1120 is positioned within the rear of the airflow passage 1128, directly upstream of the suction motor assembly 1124. Specifically, the pre-motor filter is positioned in the airflow path between the cyclone chamber 1108 and the suction motor assembly 1124 to prevent dirt, dust, and debris from the cyclone chamber 1108 from reaching the suction motor assembly 1124. As described above regarding hinge 1130, the dust collection chamber 1116 is openable to provide access to the pre-motor filter 1120 when necessary for removal, cleaning, or replacement. In other embodiments, the housing 1136 or a portion of the cyclone chamber 1108 is removable to provide access to the pre-motor filter 1120. In some embodiments, the pre-motor filter is a pleated filter. In other embodiments, the pre-motor filter is an open-pore foam filter. Figure 2 As shown, the pre-motor filter 1120 is angled generally perpendicular to the longitudinal axis A11 of the vacuum cleaner 1100 (as shown by axis A15), which causes the airflow direction through the filter 1120 to be generally parallel to the longitudinal axis A11 as it passes rearward through the housing 1136.

[0079] The suction motor assembly 1124 includes a suction motor (e.g., an electric motor) and an impeller coupled to the motor output shaft. The suction motor assembly 1124 is operable to generate a working airflow along a working airflow path from inlet 1104 to cyclone chamber 1108, through pre-motor filter 1120, through airflow passage 1128, and to outlet opening 1132. In some embodiments, an outlet filter is positioned within housing 1136 adjacent to outlet opening 1132 to prevent debris from entering the housing through outlet opening 1132. The suction motor rotates the impeller to draw dirty air (air containing debris) through inlet 1104 to move debris into dust collection chamber 1116. The suction motor assembly 1124 is located behind the second end 1188 of airflow passage 1128, cyclone chamber 1108, dust collection chamber 1116, and inlet 1104. The motor (i.e., the rotation axis A12 of the motor output shaft) is angled upwards and backwards relative to the longitudinal axis A11 at approximately 5 degrees (e.g., at least 5 degrees, 3-10 degrees, 5-15 degrees).

[0080] like Figure 8 As shown, the lower side 1192 of the vacuum cleaner 1100 includes a keyhole 1134 for mounting the vacuum cleaner 1100 on a screw, hook, or other protrusion. In the illustrated embodiment, the keyhole 1134 is located behind the dust chamber 1116 and in front of the battery socket 1186. The keyhole is located in the rear portion of the lower surface 1192 of the ground engagement, which allows the handle 1182 to be at the top and the inlet 1104 to be at the bottom when the vacuum cleaner 1100 is suspended, with most of the weight of the vacuum cleaner 1100 below the keyhole 1134.

[0081] Figures 6A-6B Unless otherwise stated, it is similar to Figures 1-5 and Figures 8-9 Vacuum cleaner 1100 and vacuum cleaner 1200 are shown in the figure. Reference numerals correspond to similar elements plus 100. The inlet 1204 of vacuum cleaner 1200 is different from the inlet 1104 that includes an integrated bristle assembly 1202. The integrated bristle assembly 1202 includes a slidable input member 1206, which is positioned outside the inlet 1204 and can be moved by a user (e.g., a user's finger) to a first / retracted position. Figure 6A ) and second / unfold position ( Figure 6B The bristles 1210 move between (e.g., linearly slide) the inlet 1204. A plurality of bristles 1210 are coupled to and movable together with the slidable input member 1206 between a first position and a second position. As shown, in the first position, the plurality of bristles 1210 are generally positioned within the inlet 1204, with a majority (e.g., at least 50%, at least 75%, at least 90%) of the length of the bristles 1210 within the inlet 1204 and behind a first end 1240 of the inlet 1204. In the second position, the plurality of bristles 1210 generally extend beyond and in front of the end 1240 of the inlet 1204, such that the bristles are configured to engage the surface to be cleaned to assist the inlet 1204 in collecting debris.

[0082] Figure 7 Unless otherwise stated, it is similar to Figures 1-5 and Figures 8-9 Vacuum cleaner 1100 and vacuum cleaner 1300 are shown in the figure. Reference numerals correspond to similar elements plus 200. A halo 1314 is disposed around the inlet 1304 and is formed particularly adjacent to the second end 1344 of the inlet 1304 on the forward-facing surface of the housing 1336. The halo 1314 provides illumination to the area being cleaned by providing illumination on all sides of the inlet 1304. In some embodiments, the halo 1314 is actuated when the motor is actuated. In some embodiments, the halo 1314 is formed by a plurality of (e.g., eight) individual light-emitting diodes (LEDs). In other embodiments, the halo 1314 is formed by a plurality of fiber optic cables. In some embodiments, a diffuser is positioned in front of the halo to provide a more consistent light output.

[0083] Figure 10 Unless otherwise stated, it is similar to Figures 1-5 and Figures 8-9Vacuum cleaner 1400 is shown as a vacuum cleaner 1100. Reference numerals are added 300 to correspond to similar elements. Vacuum cleaner 1400 has an inlet 1404, different from inlet 1104. Inlet 1404 is rotatable relative to housing 1436 of vacuum cleaner 1400. As shown, inlet 1404 includes a forward member 1401 defining a first distal end 1440 through which debris enters vacuum cleaner 1400. A rearward member 1403, formed separately from the forward member 1401, defines a second end 1440 of inlet 1404 through which debris enters housing 1436. Each of the first member 1401 and the second member 1403 is generally tubular, defining a channel through which debris enters housing 1436, wherein a flexible bellows 1407 extends between the first member 1401 and the second member 1403. The first component 1401 includes a pair of rearwardly extending arms 1405A on opposite diameter sides. The second component 1403 includes similar arms 1405B that extend forward to engage the arms 1405A of the first component. The first set of arms 1405A and the second set of arms 1405B define a rotation axis A20 about which the first component 1401 is rotatable relative to the second component 1403 to change the inlet angle of the first end 1440 relative to the housing 1436. As shown, one or both of the first arms 1405A include gears for selectively engaging teeth 1411 of a slider 1409 coupled to the second component 1403. In the forward position, as shown, the teeth 1411 engage the teeth 1405C of the gear to maintain the angle of the first component 1401 relative to the second component 1403. In some embodiments, slider 1409 is locked in a forward position until it is moved backward by a user to a rearward unlocked position, in which gear 1411 disengages from gear 1405C, thereby allowing relative rotation of components 1401, 1403. In other embodiments, slider 1409 is biased to a forward position (e.g., by a biasing member such as a spring). The bias can be overcome by manually sliding slider 1409 backward or by otherwise rotating the first component 1401 until the biasing force is overcome.

[0084] Figure 11 The following is shown as similar to the content unless otherwise stated. Figures 1-5 and Figures 8-9The vacuum cleaner 1100 shown has a vacuum cleaner inlet 1504. Reference numerals are added for similar elements. The inlet 1504 is formed by three separate but connected components: a first component 1513 located at a first end 1540 of the inlet 1504; a second component 1515 located behind the first component 1513; and a third component 1517 located behind the first component 1513 and the second component 1515 and defining a second end 1544 of the inlet 1504. The first component 1513 is coupled to and rotatable relative to the second component 1515; the second component 1515 is coupled to and rotatable relative to the third component 1517; and the third component 1517 is coupled to the housing of the vacuum cleaner. Each of the three components 1513, 1515 is generally cylindrical to define the inlet 1504, but the first component 1513 and the second component 1515 are trapezoidal (when viewed from the side), which causes rotation of the first component 1513 and / or the second component 1515 to change the angle of the first end 1540 relative to the second end 1544. In the first orientation, the three components 1513, 1515, 1517 are aligned with each other, making the inlet 1504 straight. In the second orientation, the second component 1515 is rotated relative to the third component 1517, making the first end 1540 at an angle of approximately 45 degrees relative to the second end 1544. In the third orientation, the first component 1513 is further rotated relative to the second component 1515, making the first end 1540 at a perpendicular angle relative to the second end 1544.

[0085] Figures 12-13 The following is shown as similar to the content unless otherwise stated. Figures 1-5 and Figures 8-9 The vacuum cleaner 1100 shown has a vacuum cleaner inlet 1604. Reference numerals correspond to similar elements plus 500. The inlet 1604 is rotatable relative to the housing of the vacuum cleaner. As shown, the inlet 1604 includes a forward member 1619 defining a first distal end 1640 through which debris enters the vacuum cleaner. A rearward member 1621, formed separately from the forward member 1619, defines a second end 1644 through which debris exits the inlet 1604. Each of the first member 1619 and the second member 1621 is generally tubular, defining a channel for debris passage. The first member 1619 is coupled to the second member 1621 to... Figure 10The first component 1401 and the second component 1403 of the inlet 1404 shown rotate relative to the second component in a similar manner. A gear 1627 is mounted to the inlet 1604 at the point of relative rotation. A prong 1625 extends from a base 1623, which is coupled to the first component 1619 (e.g., extending around the first component 1619). The prong 1625 is movable into (… Figure 12 ) and separation ( Figure 13 The engagement of the teeth of the gear 1627 with the gear 1627 selectively restricts or allows the rotation of the first component 1619 relative to the second component 1621.

[0086] Figure 14 The following is shown as similar to the content unless otherwise stated. Figures 1-5 and Figures 8-9 The vacuum cleaner 1100 shown has a vacuum cleaner inlet 1704. Reference numerals correspond to similar elements plus 600. At least a portion of the inlet 1704 (and, as shown, the distal end) is rotatable relative to the vacuum cleaner housing. As shown, the inlet 1704 includes a forward member 1729 defining a first distal end 1740 through which debris enters the vacuum cleaner. A rearward member 1731, formed separately from the forward member 1701, defines a second end 1740 of the inlet 1704 through which debris enters the housing. Each of the first member 1729 and the second member 1731 is generally tubular, defining a channel through which debris enters the housing, wherein a flexible bellows 1733 extends between the first member 1729 and the second member 1731. The first member 1729 includes a pair of rearwardly extending arms 1739 on opposite diameter sides. The second component 1731 includes a similar arm that extends forward to engage the arm 1739 of the first component. The interaction between the two components 1729, 1731 defines an axis of rotation about which the first component 1729 can rotate relative to the second component 1731 to adjust the inlet angle of the first end 1740 relative to the second end 1744. The arm 1735 is coupled to the first component 1729 and biased to engage with the second component 1731 to maintain a desired angle between the two components 1729, 1731. The arm 1735 includes a head 1737 that extends radially inward from the remainder of the arm 1735 to engage the second component 1731. The arm 1735 can be pressed radially inward (against bias) to disengage the head 1737 from the engagement of the second component 1731 at the inlet 1704, allowing the first component 1729 to rotate relative to the second component 1731. When the arm 1735 is released, the arm is again biased to engage with the second component 1731 to maintain the relative angle between the two components 1729 and 1731.

[0087] Figure 15Unless otherwise stated, it is similar to Figures 1-5 and Figures 8-9 Vacuum cleaner 1100 and vacuum cleaner 1800 are shown in the figures. Reference numerals correspond to similar elements plus 700. Vacuum cleaner 1800 is generally similar to... Figure 4 The vacuum cleaner 1100 shown is modified, although the internal inlet channel 1850 is modified. In particular, a longitudinal wall 1841 of the internal inlet channel 1850, which generally extends the entire length of the internal inlet channel 1850, is movable to adjust the width of the internal inlet channel. Figure 15 Three different positions (minimum, intermediate, and maximum) of the longitudinal wall 1841 are shown. In some embodiments, the longitudinal wall 1841 can be locked to specific discrete positions. In other embodiments, the longitudinal wall 1841 can be locked to any position between (and including) the minimum and maximum positions. In the maximum position, the width of the internal inlet channel 1850 is maximized to allow larger debris to pass through. In the minimum position, the width of the internal inlet channel 1850 is minimized to increase the velocity of the airflow through it. In some embodiments, the wall 1841 is manually adjustable (i.e., by moving a baffle, similar to a combination). Figure 5 (Associated with partition 1112). In other embodiments, a switch (not shown) on the exterior of housing 1836 can be actuated to change the airflow speed.

[0088] Figure 16 Unless otherwise stated, it is similar to Figures 1-5 and Figures 8-9 Vacuum cleaner 1100 and vacuum cleaner 1900 are shown in the figure. Reference numerals correspond to similar elements plus 800. Figure 16 The lower surface 1992 of the housing 1936 adjacent to the battery socket 1186 is shown. The lower surface 1992 of the housing 1936 includes an attachment structure 1943 (such as a PACKOUT brand attachment structure) instead of a keyhole (or, in other embodiments, in addition to a keyhole), for attachment to storage organizers, toolboxes, and other components having mating attachment structures. The attachment structure 1943 includes protrusions that engage in slots within the mating structure. In some embodiments, the attachment structure 1943 is integrally formed into the lower surface 1992 of the housing 1936. In other embodiments, the attachment structure 1943 may be attached to the lower surface 1992 of the housing 1936. As shown, a fastener 1947 extends through a slot 1945 to engage an opening in the housing 1936 (such as...). Figure 8 The keyhole 1134 or threaded hole shown is used to attach the attachment structure 1943 to the housing 1936.

[0089] Figures 17-18 A floor tool 2100 is shown for use with a vacuum cleaner, such as a vacuum cleaner 1100. The floor tool 2100 includes a defined suction inlet 2150. Figure 18 The housing 2104 contains dust and debris, which are drawn into the interior 2146 (i.e., the suction chamber) of the housing 2104 through the suction inlet 2150. The housing 2104 is coupled to an outlet assembly 2108, which defines an outlet 2112 through which debris is drawn from the interior 2146 of the housing 2104 into the inlet (such as...) of the vacuum cleaner. Figure 1 In the inlet 1104 shown. In some embodiments, the outlet assembly 2108 may be directly coupled to the inlet of the vacuum cleaner. In other embodiments, the outlet assembly 2108 may be indirectly coupled to a rigid, flexible, or flexible / rigid combination assembly located therebetween to increase the distance between the handheld vacuum cleaner (e.g., vacuum cleaner 1100) and the floor tool 2100.

[0090] The floor tool 2100 is supported on a floor surface (e.g., a horizontal surface), wherein a plurality of wheels 2116 are positioned adjacent to the rear side 2126 of the housing 2104, and a pair of rollers 2162 ( Figure 18 The wheel 2116 and roller 2162 are positioned adjacent to the front side 2124 of the housing 2104. Each of the wheels 2116 and rollers 2162 is coupled to the housing 2104, although the wheel 2116 is larger and visible from above, while the roller 2162 is located within the housing 2104 and is only visible from below. The housing 2104 has a width extending between a first side edge 2130 and a second side edge 2134, a depth extending between the front side 2124 and the rear side 2126, and a height extending between the top side 2138 and the bottom side 2142. The width is greater than the depth, and the depth is greater than the height. The housing is generally rectangular in shape. Figure 18 As shown, the suction inlet 2150 is entirely formed within the lower side 2142 (i.e., the bottom surface) of the housing 2104, which is substantially parallel to and adjacent to the ground when all wheels 2116 and rollers 2162 are engaged with the ground. The width of the suction inlet 2150 is substantially the same as the width of the housing 2104, minus only the widths of the two side edges 2130, 2134. The height of the suction chamber 2146 within the housing 2104 is variable, increasing towards the center of the housing 2104. In the illustrated embodiment, the height of the suction chamber 2146 increases linearly from each side edge 2130, 2134 with a negligible increase (i.e., less than 10% of the maximum height of the suction chamber) to the maximum internal height of the central opening 2154. The central opening 2154 opens toward the inlet 2158 of the outlet assembly 2108, which causes debris in the suction chamber 2146 to be guided in the width direction toward the central opening 2154 and through the inlet 2158 into the outlet assembly 2108.

[0091] An outlet assembly 2108 extends between an inlet 2158 and an outlet 2112 and includes a flexible tube 2120 (e.g., a corrugated hose) housed within a rigid outlet assembly 2108. The outlet assembly is rotatable about an axis A21 by utilizing the flexibility of the flexible tube. The inlet 2158 is defined by a rigid body and rigidly fixed to a housing 2104. The outlet 2112 is defined by a rigid body and rigidly fixed to a vacuum cleaner (such as vacuum cleaner 1100). The flexible tube 2120 extends between them and provides a continuous flow path between the inlet 2158 and the outlet 2112, regardless of the relative rotation of the rigid bodies defining the inlet 2158 and the outlet 2112.

[0092] Figure 19 Unless otherwise stated, it is similar to Figures 17-18 Floor tool 2200 is shown as floor tool 2100. Reference numerals correspond to similar elements plus 100. Floor tool 2200 includes an additional lighting arrangement for illuminating the floor area surrounding floor tool 2200. In some embodiments, a plurality of lights 2280 (e.g., LEDs) are positioned on the front side 2224 of housing 2204 to illuminate the area directly in front of floor tool 2200. In the illustrated embodiment, nine individual lights are arranged along the suction inlet (similar to...) Figure 18 The floor tools directly above the suction inlet 2150 shown are evenly spaced across their full width. In other embodiments, more or fewer lamps 2280 may be used. Additionally or alternatively, a lamp array 2274 is disposed on top of the upper surface of the housing 2204. As shown, the lamp housing 2270 is mounted to (or otherwise integrally formed with) the housing 2204, which has a plurality of channels formed therein. Each of the channels receives the fiber optic cable 2274 and directs the light from the fiber optic cable 2274 at various forward-facing angles. A bracket 2278 mounted to the outlet assembly 2208 organizes and supports the fiber optic cable 2274. In some embodiments, such as combining Figure 7 In the described embodiment, the vacuum cleaner can be combined with a light source. In such an embodiment, the light source can extend downwards (e.g., via fiber optic cable) to the floor tool 2200 and can be organized and supported via a bracket 2278.

[0093] Figures 20-25A vacuum cleaner 100 is shown, comprising an inlet 104, a cyclone chamber 108, a baffle 112, a dust collection chamber 116, a pre-motor filter 120, a suction motor assembly 124, and an airflow passage 128 between the pre-motor filter 120 and the suction motor assembly 124. The suction motor assembly 124 draws air and debris (e.g., dust and larger particles and fragments) from the environment (around the vacuum cleaner) into the vacuum cleaner 100 through the inlet 104. Air and debris are drawn in through the inlet 104 and into the cyclone chamber 108. Within the cyclone chamber 108, heavier debris falls through the baffle 112 and into the dust collection chamber 116. Air within the cyclone chamber 108 is drawn upwards through the pre-motor filter 120 and into the airflow passage 128. The airflow is generally drawn from the airflow channel 128 to the suction motor assembly 124, and then through the outlet opening 132 in the housing 136 of the vacuum cleaner, where the air is discharged from the interior of the vacuum cleaner 100 back into the environment.

[0094] The housing 136 of the vacuum cleaner 100 surrounds and encloses the cyclone chamber 108, baffle 112, dust collection chamber 116, pre-motor filter 120, suction motor assembly 124, and airflow passage 128. The housing 136 may also surround a portion of the inlet 104. The housing 136 has a length (longer than its width and height) extending from its front end to its rear end. The inlet 104 is located at the front end of the housing 136. A longitudinal axis A1 extends along the length of the vacuum cleaner 100. The longitudinal axis A1 is generally parallel to the horizontal surface on which the vacuum cleaner 100 rests. The housing 136 includes a lower surface 192 resting on the horizontal surface. An upper surface 196 opposite to the lower surface 192 includes a handle 182. The handle 182 includes a gripping portion and two posts coupling the gripping portion to the remainder of the housing 136. The gripping portion extends longitudinally and is located above the remainder of the housing 136. The gripping portion of the handle 182 is angled downwards at approximately 15 degrees (e.g., 10-20 degrees) relative to the longitudinal axis A1 (see the central axis A3 of the handle 182). The rear column is generally vertical, and the front column extends upwards and backwards. The housing 136 includes a battery socket 186 configured to receive a rechargeable battery (not shown) adjacent to the rear and lower ends of the housing 136. The battery is configured to supply power to the suction motor assembly 124. The battery socket is angled at approximately 10 degrees (e.g., 5-15 degrees) relative to the longitudinal axis A1 (see the insertion axis A4 of the battery socket 186).

[0095] Inlet 104 is a generally cylindrical channel extending from a first (distal) end 140 to a second (proximal) end 144. Debris is drawn into the vacuum cleaner 100 through the distal end 140. The second end 144 is located in (e.g., within) the housing 136 of the vacuum cleaner and supplies debris from inlet 104 to cyclone chamber 108. As shown, the axis of inlet 104 is generally parallel (or collinear) with the longitudinal axis A1 of the vacuum cleaner 100. In the illustrated embodiment, inlet 104 includes a tapered opening at the first end 140, such that the opening is not perpendicular to the axis of the inlet. In other embodiments, the opening may be angled in other ways. The diameter of inlet 104 widens closer to the second end 144 to correspond to the height of cyclone chamber 108. Inlet 104 deflects at the second end 144, causing dirty air to be tangentially introduced into cyclone chamber 108, thereby creating a cyclone airflow within cyclone chamber 108. In some embodiments, an attachment may be attached to end 140 of inlet 104 to provide additional attachments suitable for different surfaces (e.g., a brushed attachment head, a crevice tool, etc.). In other embodiments, inlet 104 may be replaced by an alternative inlet with a different attachment.

[0096] Cyclone chamber 108 is positioned behind inlet 104 within housing 136 and provides a divergence path for debris and airflow drawn in through inlet 104. Cyclone chamber 108 includes an outer cylindrical sidewall 148 through which it receives airflow and debris from inlet 104. An annular top wall 152 covers a portion of one end of the cyclone chamber, except for a central opening 156 extending through it. As shown, the central opening 156 is defined by an inner cylindrical sidewall 160 nested within the outer cylindrical sidewall 148. The inner cylindrical sidewall 160 extends downward into the internal volume of cyclone chamber 108, such that at least a portion of cyclone chamber 108 has an annular cross-section. A lower wall 164 is at least partially formed by a baffle 112, which forms a barrier between cyclone chamber 108 and dust collection chamber 116. As airflow is drawn upward through the central opening 156 and debris moves downward through the baffle 112, the debris is dispersed from the airflow generated by the suction motor assembly 124.

[0097] partition 112 in Figure 22The diagram shows, in more detail, a plate (circular plate as shown) with an opening 168 through which debris is configured to be transferred from cyclone chamber 108 to dust collection chamber 116. As shown, the opening 168 is formed adjacent to the radial extent of partition 112. The opening 168 has a first width at a first end 172 and a second width greater than the first width at a second end 176 opposite to the first end 172. The width of the opening 168 gradually decreases between the two ends 172 and 176 in the direction of the cyclone airflow. The first end 172 is offset from the second end 176 by approximately 120 degrees (e.g., 110-130 degrees, 90-150 degrees, greater than 90 degrees), which causes the opening 168 not to extend around most of partition 112. As shown, the opening 168 covers less than 50% of the partition. In the illustrated embodiment, the opening 168 is generally C-shaped. The opening 168 is large enough to allow fairly large debris (which can fit through inlet 104) to pass through, but is limited in size to limit the impact of the circulating airflow within cyclone chamber 108 on the debris within dust collection chamber 116. The baffle 112 includes two adjustment mechanisms 180 that allow a user to rotate the baffle 112 relative to the lower wall 164 to remove the baffle 112 and provide access to the interior of cyclone chamber 108. The baffle 112 is rotatable between a locked position where the baffle 112 is installed and an unlocked position where the baffle 112 can be removed from the lower wall 164. As shown, the adjustment mechanism 180 includes tabs that extend perpendicular to the baffle 112 and into dust collection chamber 116. The user can place their index finger on one tab 180 and their thumb on the other tab to generate a rotational force to remove (and reinstall) the baffle 112. In other embodiments, the adjustment mechanism 180 may allow the baffle 112 to pivot downwards to provide access to cyclone chamber 108.

[0098] Dust collection chamber 116 is located below cyclone chamber 108 and partition 112, and receives debris drawn in through inlet 104 and through opening 168 in partition 112. In some embodiments, dust collection chamber 116 is formed of a transparent or translucent material, allowing a user to identify the state of dust collection chamber 116 (empty, partially full, almost full, full, etc.). Dust collection chamber 116 is located below cyclone chamber 108 and behind inlet 104, and defines an internal storage volume for collected debris. Dust collection chamber 116 can be removed from housing 136 (as well as inlet 104 and cyclone chamber 108) to empty dust collection chamber 116. In some embodiments, dust collection chamber 116 is pressed inward (i.e., squeezed on opposite sides) to release the clamps coupling dust collection chamber 116 to housing 136. In other embodiments, the dust collection chamber 116 may be flipped down in other ways (e.g., on a hinge) and / or have clips or buttons that can be displaced to separate the dust collection chamber 116 from the housing 136.

[0099] The pre-motor filter 120 is positioned above the cyclone chamber 108. Specifically, the pre-motor filter is disposed in the airflow path between the cyclone chamber 108 and the suction motor assembly 124 to prevent dirt, dust, and debris from the cyclone chamber 108 from reaching the suction motor assembly 124. In some embodiments, the housing 136 (i.e., the upper surface 196 of the housing 136) is openable to provide access to the pre-motor filter 120 when necessary for removal, cleaning, or replacement. In other embodiments, the cyclone chamber 108 is removable downwards from the housing 136 to provide access to the pre-motor filter 120 from the bottom of the vacuum cleaner 100. In some embodiments, the pre-motor filter is a pleated filter. In other embodiments, the pre-motor filter is an open-cell foam filter. Figure 3 As shown, the pre-motor filter 120 is angled relative to the longitudinal axis A1 of the vacuum cleaner 100. The pre-motor filter 120 is generally planar (identified by reference numeral A5), which causes the airflow through the filter 120 to be transverse to this plane. The plane of the pre-motor filter 120 is angled rearward at approximately 10 degrees (e.g., 5-15 degrees) relative to the longitudinal axis A1, which causes the airflow perpendicular to the plane passing through the filter 120 to pass upward and rearward through the housing 136.

[0100] Airflow passage 128 extends rearward from pre-motor filter 120 to suction motor assembly 124 and is a hollow duct for providing suction airflow between suction motor assembly 124 and cyclone chamber 108. A first end 184 of airflow passage 128 is located at pre-motor filter 120. A second end 188, opposite to the first end 184, is located at suction motor assembly 124. Airflow passage 128 is generally S-shaped between the two ends 184 and 188. Airflow passage 128 extends rearward generally horizontally from the first end 184 (i.e., generally parallel to the longitudinal axis A1 of vacuum cleaner 100), extends vertically downward from there, and then rearward to the second end 188. Adjacent to the second end 188, airflow passage 128 is angled rearward and upward relative to longitudinal axis A1 at approximately 10 degrees (e.g., 5-15 degrees).

[0101] The suction motor assembly 124 includes a suction motor (e.g., an electric motor) and an impeller coupled to the motor output shaft. The suction motor assembly 124 is operable to generate a working airflow along a working airflow path from inlet 104 to cyclone chamber 108, through pre-motor filter 120, through airflow passage 128, and to outlet opening 132. The suction motor rotates the impeller to draw in dirty air (air containing debris) through inlet 104 to move the debris into dust collection chamber 116. The suction motor assembly 124 is located behind the second end 188 of airflow passage 128, cyclone chamber 108, dust collection chamber 116, and inlet 104. The motor (i.e., the axis of rotation A2 of the motor's output shaft) is angled rearward and upward relative to the longitudinal axis A1 at approximately 5 degrees (e.g., at least 5 degrees, 3-10 degrees, 5-15 degrees).

[0102] Figures 26-28 Unless otherwise stated, it is similar to Figures 20-25 Vacuum cleaner 100 is shown as vacuum cleaner 200. Reference numerals correspond to similar elements plus 100. The gripping portion of handle 282 extends downwards to the remainder of housing 236, instead of having a vertical rear post. Figure 28 The figure shows a battery 290 coupled to a battery socket 286. As shown, the battery socket 286 (and therefore the battery 290 coupled thereto) is coupled at an angle relative to the longitudinal axis A1, which makes the bottom surface of the battery 290 not parallel or coplanar with the lower surface 292 of the housing. Therefore, in some embodiments, only a portion (e.g., the edge) of the battery 290 rests on a horizontal surface together with the housing 236 of the vacuum cleaner 200. In other embodiments, the battery 290 is suspended above the horizontal ground, which makes the battery 290 not in contact with the horizontal surface at all. Another difference between the vacuum cleaner 200 and the vacuum cleaner 100 is the shape of the top wall 252 and the inner sidewall 260 of the cyclone chamber 208. The inner sidewall is not a vertical inner sidewall, but tapers inward from the top wall 252 to the opening 256. In some embodiments, such as Figure 26 As shown, the airflow channel 228 can be different (e.g., extending vertically downwards through the dust collection chamber 116 and then rearwards to the suction motor assembly 224). Figure 26 In one embodiment, the pre-motor filter is a vertically oriented planar filter positioned in front of the suction motor assembly 124.

[0103] Figure 29 Unless otherwise stated, it is similar to Figures 20-25 The vacuum cleaner 100 shown is a vacuum cleaner 300. Reference numerals correspond to similar elements plus 200. The shape of the airflow channel 328 is different. Figures 20 to 25The airflow passage 128 is shown. The airflow passage 328 does not have a generally S-shaped profile, but instead includes a horizontal portion extending rearward from a first end 384 at the motor pre-filter 320 (i.e., in the direction of the longitudinal axis A1). The horizontal portion terminates in a downward portion at a second end 388 that is angled downward and rearward relative to the suction motor assembly 324 (e.g., approximately 45 degrees, 30 to 60 degrees). The angle of the suction motor assembly 324 (i.e., the angle of the axis of rotation of the motor of the suction motor assembly) is similar to the angle of the downward portion of the airflow passage 328.

[0104] Figure 30 Unless otherwise stated, it is similar to Figures 20-25 The vacuum cleaner 100 shown is a vacuum cleaner 400. Reference numerals correspond to similar elements plus 300. (See attached figures.) Figure 30 As shown, in some embodiments, the housing 436 of the vacuum cleaner 400 includes a plurality of light-emitting diodes (LEDs) 410, 414, 418 spaced apart from each other around an inlet 404. A first LED 410 is located above the inlet 404, a second LED 414 is located on a first side (e.g., the right side) of the inlet 404, and a third LED 418 is located on a second side (e.g., the left side) of the inlet 404 opposite to the first side. Each LED 410, 414, 418 is separate from and different from each other. The LEDs 410, 414, 418 collectively illuminate the area around and surrounding the distal end 440 of the inlet 404, allowing the user to identify debris in the area of ​​the distal end 440 of the inlet 404. By utilizing multiple LEDs 410, 414, 418 on multiple sides of the inlet 404, the intensity of the shadow cast by the inlet 404 is reduced.

[0105] Figures 31-32 Unless otherwise stated, it is similar to Figures 20-25 Vacuum cleaner 100 and vacuum cleaner 500 are shown in the figure. Reference numerals correspond to similar elements plus 400. Figures 31-32 The baffle 512 shown differs from baffle 112. Baffle 512 is a tapered baffle extending downward into the internal volume of the dust collection chamber 516, which positions the opening 568 of baffle 512 lower relative to the inlet 504. The tapered baffle 512 also increases the internal volume of the cyclone chamber 508. The opening 568 is circular and centrally located on the tapered baffle 512. The adjusting mechanism 580 includes clamps that selectively hold the tapered baffle 512 in place. When the clamps 580 are moved to release the tapered baffle 512 (to provide access to the interior of the cyclone chamber 508), the tapered baffle rotates about hinge 522.

[0106] Figure 33Unless otherwise stated, it is similar to Figures 20-25 Vacuum cleaner 100 shown is a vacuum cleaner 600. Reference numerals correspond to similar elements plus 500. One or both of the housing 636 and the dust collection chamber 616 include a recess 650 formed therein. The recess 650 is configured to receive an attachment 654 for the vacuum cleaner 600, such as a crevice tool. In some embodiments, the recess includes a retaining member 658 (e.g., a deformable protrusion) configured to releasably secure the attachment 654 within the recess 650. The recess 650 has sufficient depth such that when the attachment 654 is positioned within the recess 650, the lower surface 692 of the housing 636 rests on a horizontal surface.

[0107] Figure 34 Cyclone chamber 708 is shown, which is similar to cyclone chamber 108 unless otherwise stated. Figure 34 The diagram illustrates the eccentric introduction of air into a cyclone chamber 708 to generate a cyclone airflow therein. A vertical outlet 762 extends upward from the top wall 752 of the cyclone chamber 708 to a pre-motor filter 720 and a suction motor assembly 728. In some embodiments, the diameter of the vertical outlet 762 gradually decreases as it extends further away from the top wall 752.

Claims

1. A vacuum cleaner, characterized in that, include: Housing, the housing defining a longitudinal axis; An inlet, defining an opening through which debris is supplied into the housing; A cyclone chamber configured to receive the debris from the inlet, the cyclone chamber being annular and defining a central opening and a debris opening located radially outward of the central opening; A dust collection chamber configured to receive the debris from the cyclone chamber via the debris opening; A suction motor assembly, located within the housing and configured to generate an airflow through the inlet and the cyclone chamber; and An airflow channel extends from the central opening of the cyclone chamber to the suction motor assembly, wherein the suction motor assembly is configured to draw airflow from the cyclone chamber through the airflow channel, and wherein the airflow channel extends downward from the cyclone chamber and into the interior of the dust collection chamber.

2. The vacuum cleaner as described in claim 1, characterized in that, The device further includes a partition positioned within the housing to separate the cyclone chamber from the dust collection chamber, wherein the debris opening is formed within the partition, and wherein the airflow passage passes through the partition.

3. The vacuum cleaner as described in claim 2, characterized in that, The partition is movable relative to the housing to provide access to the interior of the cyclone chamber.

4. The vacuum cleaner as described in claim 3, characterized in that, The inlet is located outside the rest of the housing, and the vacuum cleaner further includes an internal inlet channel located within the housing and extending between the inlet and the cyclone chamber, wherein the partition is movable relative to the housing to provide access to the interior of the internal inlet channel.

5. The vacuum cleaner as described in claim 1, characterized in that, The airflow channel extends downward from the central opening and then backward to the suction motor assembly.

6. The vacuum cleaner as described in claim 1, characterized in that, The device further includes a pre-motor filter positioned within the airflow channel and arranged substantially perpendicular to the longitudinal axis of the housing, such that airflow through the pre-motor filter through the plane perpendicular to the pre-motor filter is substantially parallel to the longitudinal axis of the housing.

7. The vacuum cleaner as described in claim 1, characterized in that, The airflow channel is centrally located within the dust collection chamber, which allows the dust collection chamber to extend to either side of the airflow channel in any width direction.

8. The vacuum cleaner as described in claim 1, characterized in that, At least a portion of the airflow channel is integrally formed with the dust collection chamber as a single component.

9. The vacuum cleaner as described in claim 1, characterized in that, The dust collection chamber is movable relative to the housing from a closed position to an open position to allow the dust collection chamber to be emptied, wherein at least a portion of the airflow passage is movable together with the dust collection chamber between the open position and the closed position.

10. The vacuum cleaner as described in claim 1, characterized in that, It further includes a grille positioned at the central opening and configured to prevent large debris inside the cyclone chamber from entering the airflow passage.

11. The vacuum cleaner as described in claim 1, characterized in that, It further includes a light configured to illuminate a surface to be cleaned by the vacuum cleaner, wherein the light comprises a plurality of light-emitting diodes or a plurality of fiber optic cables.

12. The vacuum cleaner as described in claim 1, characterized in that, The suction motor assembly includes a motor, impeller blades, and a foam sleeve, the foam sleeve being positioned around the motor to reduce the peak blade pass frequency caused by the speed and number of blades of the impeller blades.

13. The vacuum cleaner as described in claim 1, characterized in that, The inlet is adjustable relative to the housing, which allows the orientation of the distal end of the inlet to be rotatable relative to the housing.

14. The vacuum cleaner as described in claim 1, characterized in that, The lower surface of the housing includes an attachment structure for attaching to a component having a mating attachment structure.

15. A vacuum cleaner, characterized in that, include: Housing, the housing defining a longitudinal axis; An inlet, located outside the rest of the housing, defines an opening through which debris is supplied into the housing, the inlet extending generally parallel to the longitudinal axis; A cyclone chamber configured to receive the debris from the inlet, the cyclone chamber being annular and defining a central opening and a debris opening located radially outward from the central opening; An internal inlet channel, which is entirely located within the housing and extends between the inlet and the cyclone chamber; A dust collection chamber configured to receive the debris from the cyclone chamber via the debris opening; A suction motor assembly, located within the housing and configured to generate airflow through the inlet, the internal inlet passage, and the cyclone chamber; An airflow channel extends from the central opening of the cyclone chamber to the suction motor assembly, wherein the suction motor assembly is configured to draw airflow from the cyclone chamber through the airflow channel. A partition, positioned within the housing to separate the cyclone chamber from the dust collection chamber, wherein a debris opening is formed within the partition, and wherein the partition is movable relative to the housing to provide access to the interior of the cyclone chamber and the interior of the internal inlet passage.

16. The vacuum cleaner as described in claim 15, characterized in that, The partition defines at least a portion of the cyclone chamber and the lower surface of at least a portion of the internal inlet passage.

17. The vacuum cleaner as described in claim 15, characterized in that, The partition can rotate about the hinge.

18. The vacuum cleaner as described in claim 15, characterized in that, The dust collection chamber is movable relative to the housing between a closed position and an open position, and wherein when the dust collection chamber is in the open position, the partition can be accessed to move relative to the housing.

19. The vacuum cleaner as described in claim 15, characterized in that, It further includes at least one adjustment mechanism that selectively holds the partition in the use position and is rotatable away from the partition to allow the partition to open.

20. The vacuum cleaner as described in claim 15, characterized in that, The internal inlet channel is non-linear and offset from the longitudinal axis of the housing, which causes the airflow to be tangentially introduced into the cyclone chamber.

21. A vacuum cleaner, characterized in that, include: Housing, the housing defining a longitudinal axis; An inlet, located outside the rest of the housing, defines an opening through which debris is supplied into the housing; A cyclone chamber configured to receive the debris from the inlet, the cyclone chamber being annular and defining a central opening and a debris opening located radially outward of the central opening; A dust collection chamber configured to receive the debris from the cyclone chamber via the debris opening; A suction motor assembly, located within the housing and configured to generate an airflow through the inlet and the cyclone chamber; and An airflow channel extends from the central opening of the cyclone chamber to the suction motor assembly, wherein the suction motor assembly is configured to draw airflow from the cyclone chamber through the airflow channel. The housing defines a hinge pin that extends substantially perpendicular to the longitudinal axis. The dust collection chamber defines an L-shaped bracket that extends above and around the hinge pin, allowing the dust collection chamber to rotate between a closed and an open position about the axis of the hinge pin. When the dust collection chamber is in the open position, the L-shaped bracket can be removed from the hinge pin, which allows the dust collection chamber to be removed from the housing.

22. The vacuum cleaner as described in claim 21, characterized in that, The L-shaped bracket of the dust collection chamber cannot be removed from the hinge pin in the closed position.

23. The vacuum cleaner as described in claim 21, characterized in that, Most of the hinge pin is visible and is located on the outside of the rest of the housing.

24. The vacuum cleaner as described in claim 21, characterized in that, The device further includes a latching assembly configured to secure the dust collection chamber in the closed position. The latching assembly includes a handle, a latching arm, and a catch plate. The handle is a user-operated member coupled to and rotatable relative to the dust collection chamber. The latching arm is an inverted U-shaped rod that engages with the handle. The catch plate defines a hook supported by the housing, which is engaged by the latching arm when the latching assembly secures the dust collection chamber to the housing in the closed position.

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