CN110381787B

CN110381787B - Battery operated vacuum cleaner

Info

Publication number: CN110381787B
Application number: CN201780088101.0A
Authority: CN
Inventors: 马蒂亚斯·赫尔曼
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2017-03-08
Filing date: 2017-03-08
Publication date: 2022-03-29
Anticipated expiration: 2037-03-08
Also published as: CN110381787A; WO2018162057A1; EP3592192C0; EP3592192B1; EP3592192A1

Abstract

The invention relates to a battery-operated vacuum cleaner, comprising a suction container (12), a suction head (36) arranged on the suction container (12), a blower device (56) for generating a suction air flow, and at least one process air channel (74) which is fluidically connected to the blower device (56), wherein a battery holder (92) for a battery device (90) is positioned on the suction head (36) between the at least one process air channel (74) and an upper side (76) of the suction head (36) and/or between the at least one cooling air channel (63) of the blower device (56) and the upper side (76) of the suction head (36).

Description

Battery operated vacuum cleaner

Technical Field

The invention relates to a battery-operated vacuum cleaner comprising a suction container, a suction head arranged on the suction container, a blower device for generating a suction air flow, and at least one process air channel which is fluidically connected to the blower device.

Background

From WO 2012/107595 a vacuum cleaner is known which has a battery device for supplying energy to the vacuum cleaner and for supplying energy to an external air valve device for cleaning the filter device.

Disclosure of Invention

The object of the invention is to provide a battery-operated vacuum cleaner of the type mentioned at the outset, which is of compact design.

In a vacuum cleaner which is operated by batteries and of the type mentioned at the outset, the object is achieved according to the invention in that a battery holder for the battery device is positioned on the suction head between the at least one process air channel and the upper side of the suction head and/or between the at least one cooling air channel of the blower device and the upper side of the suction head.

By positioning the battery holder (and thus also the battery unit held on the battery holder) in this way, the suction head is constructed compactly, as well as the vacuum cleaner.

In principle, the upper side of the vacuum cleaner with the battery device held thereon is defined by the battery device, or by a component of the vacuum cleaner other than the battery device, and the held battery device is flush with the upper side or is retracted relative to the upper side.

In a simple manner, it is achieved that the battery device does not project beyond or only slightly beyond the contour of the vacuum cleaner and in particular of the suction head.

The solution according to the invention allows the battery holder and the battery device to be mounted on the suction head in a space-saving and protected manner.

Furthermore, the battery device can be removed or inserted in a simple manner.

In particular, it is provided that the battery device is releasably held on the battery holder.

In order to "mount" the battery device on a battery-operated vacuum cleaner, it is not necessary or only necessary to slightly modify the "rest of the vacuum cleaner" except for the suction head.

Suitably, the air blowing device is located on the cleaner head. In this way, good access to the aspirate container can be achieved, for example, when the suction head as a whole is arranged in a releasable manner on the aspirate container.

Suitably, the nozzle is provided with an arcuate handle which defines an upper side of the nozzle (without the battery means). The cleaner can be held and transported by this arcuate handle. In particular, this arcuate handle defines the uppermost region of the cleaner as the region having the greatest spacing from the floor on which the cleaner is correctly erected.

Suitably, the battery holder is arranged and constructed such that the battery device does not project beyond the upper side of the suction head when the battery device is held on the battery holder. This results in a space-saving installation. The risk of injury to the operator is reduced or the operator is prevented from being "hooked up" at the installed battery device. Furthermore, it is possible to "sink" the battery device and thus to position it in a protected manner on the battery holder and thus on the suction head.

It can be provided here that the battery device arranged on the battery holder is flush with the arcuate handle. Particularly a flush transition to an arcuate handle. This prevents or greatly reduces the risk of fingers being jammed between the bow handle and the battery device, for example.

It is particularly advantageous if the insertion direction and/or removal direction of the battery device on the battery holder is transverse and, in particular, perpendicular to the envelope plane of the upper side of the suction head. The battery device is held in particular in a releasable manner on the battery holder. The battery device, in particular a rechargeable battery device, can then be removed from the battery holder for recharging. Furthermore, battery-operated vacuum cleaners can also be operated with different battery arrangements, so that a longer suction duration can be achieved. By making the insertion direction or the removal direction transverse to the envelope plane, the battery device can be inserted or removed from above. Thereby achieving an optimal space utilization. Furthermore, the longer side of the battery device can be oriented parallel to the insertion direction or the removal direction, so that here too optimum space utilization is achieved and in particular no widening of the suction head is required.

For the same reason, it is advantageous if the insertion direction and/or the removal direction is at least approximately parallel to the axis of rotation of the blower motor of the blower device and/or at least approximately parallel to the direction of the height extension of the suction container. The direction of the height extension of the extract container corresponds in particular to a direction parallel to the direction of the spacing from the top side to the extract container.

As an alternative or in addition, it is also advantageous for the same reason if the insertion direction and/or removal direction is transverse, and in particular perpendicular, to the rolling axis of the roller or rollers, via which the vacuum cleaner can be set up in a drivable manner on the floor, and/or at least almost parallel to the steering axis of one or more steerable rollers, by means of which the vacuum cleaner can be set up in a drivable manner on the floor, and/or transversely and in particular perpendicularly to the longitudinal extension of the channel section of the at least one process air channel, wherein the channel section is arranged directly below the battery holder or the battery device on the suction head, and the longitudinal extension corresponds to the main flow direction in the channel section for the process air flow and/or at least approximates the insertion direction of the suction head on the aspirate container. The suction head is arranged in particular in a releasable manner on the aspirate container and the insertion direction is at least approximately parallel to the insertion direction or the removal direction.

At least almost parallel is to be understood as meaning that the orientation is parallel or at an acute angle of at most about 20 ° to the parallel.

The channel section which is arranged directly below the battery holder and/or the battery device on the suction head (in terms of the direction from the top to the aspirate container) is in particular a channel section which is modified in such a way that the battery device can be mounted on the suction head on the battery holder in a space-saving manner.

It is advantageous if a free region is formed on the suction head, on which the battery holder is arranged, wherein the free region is open toward the upper side and/or open toward at least one side transverse thereto. For example it is open towards the front side. When this free area is open toward the upper side, the battery device can be inserted from there or guided out on the upper side. If the free region is open on at least one side transversely to the upper side and, for example, is open toward the front side, the battery device can thus be better gripped in order to remove it from the battery holder, for example, in a simple manner. In addition, the display on the battery device can be read more easily.

It is particularly advantageous if a receiving region is formed on the free region and/or if the free region itself forms the receiving region, wherein a battery holder is mounted on this receiving region, and wherein the receiving region is delimited by a bottom wall and a rear wall oriented transversely to the bottom wall. A receiving space for the battery device is formed by this receiving region, which has the shape of a hollow cuboid, for example. The battery device can then be applied to the suction head in a space-saving manner.

It is then particularly expedient for the rear wall to be arranged between the at least one process air channel and the upper side. The rear wall can be used in particular for positioning components of the battery holder and, for example, all components on the suction head. One or more guide rails or guide grooves may be positioned on the rear wall, for example.

Expediently, the bottom wall covers at least one channel section of the at least one process air channel. Hereby a space-saving construction is achieved and the suction head and thus also the cleaner can be constructed compactly.

In one embodiment, the free area is formed in a wall which is inclined with respect to the direction from the upper side of the suction head to the aspirate container. This makes it possible to design the suction head on the one hand with no or few edges. On the other hand, an optimum positioning of the battery device can be achieved.

The inclined wall is then preferably configured such that the battery device fitted on the battery holder is partially sunk into the recess (formed by the free region) in the wall and partially emerges in the case of the inclined wall. At this raised portion, the battery device can be gripped and thus removed from the battery holder, in particular by a pushing movement.

In one embodiment, a switch is arranged on the wall, and the switch is arranged in particular next to the battery holder and in particular outside the free region. This allows the cleaner to be operated in a simple manner while at the same time achieving an optimum use of space. The switch is in particular a start-stop switch. In addition, this allows the line guide for the electrical line to be held simply on the suction head.

It is particularly advantageous if the battery holder is arranged relative to the free region such that the battery device held does not project laterally beyond the suction head. The lateral direction is in this case relative to all surfaces oriented transversely to the upper side. In this way a space-saving arrangement is achieved. The risk of the operator getting caught at the battery device is minimized. There is also no risk of the battery device hitting against a wall or the like during the suction operation.

It is also advantageous if the free region is open with respect to the upper side of the suction head, so that the battery device can be inserted onto the battery holder from the upper side of the suction head. In particular, the battery device can be fixed to the suction head by a sliding movement in the insertion direction. This allows an optimum space utilization while at the same time allowing a simple removability or fixability of the battery device on the battery holder.

It is also advantageous if the free area is open laterally, so that an optical display on the battery device can be read when the battery device is inserted into the battery holder. The respective open side is in particular the front side, which is opposite the back side.

A compact construction is achieved when a suction connection for a suction hose is arranged on the side of the vacuum cleaner on which the battery holder is arranged.

In the case of a height direction of the aspirate container, the aspirate connector and the battery holder are then placed on top of one another, wherein they do not necessarily have to be arranged flush in this direction. Advantageously, this arrangement is not flush, but the battery holder with the battery device is retracted in terms of the height line through the suction connection.

In particular, the suction connection is arranged below the battery holder in the direction from the upper side of the suction head to the suction container, wherein in particular the suction connection is arranged on the suction holder. A compact design is thus achieved.

Advantageously, the channel section of the at least one process air channel, which is located directly below the battery holder and/or the battery device, has an overall height of at most 80mm, in particular at most 70mm, in particular at most 65 mm. The total height is referred to in this case in the opposite direction, which corresponds to a projection direction parallel to the height direction of the extract container or to the direction from the upper side to the extract container. Directly below means here that the channel sections lie on the respective projection lines. By such a channel section having a relatively small overall height, the battery device can be positioned with its longer side parallel to the height direction. A space-saving positioning can be achieved here without the battery device projecting beyond the upper side of the vacuum cleaner.

Advantageously, the channel section of the at least one process air channel, which is located directly below the process air channel with respect to the direction from the upper side of the suction head to the aspirate container, is of multi-chamber or multi-part design. This results in a simple construction. For example, the lower part can be directly fluidically connected to the filter device (clean side of the filter device) and, for example, to the filter basket, while the upper part is closer to the blower device, for example, part of the motor mount.

It is particularly advantageous if at least one step is formed on at least one process air channel and/or at least one cold air channel and/or at the transition from at least one process air channel to at least one cold air channel. In particular, a channel section can thereby be designed such that the battery holder and/or the battery device can be positioned directly above the channel section. In this region, the overall height can be kept small, so that the battery holder with the battery device can be applied in a space-saving manner.

In particular, at least one step is then formed which, in the direction from the upper side of the suction nozzle to the suction nozzle receptacle, is located directly below the battery holder and/or the battery device held by it. This enables the battery device to be positioned on the suction head in a space-saving manner. In particular, it is possible to orient the battery device with its longest side parallel to the direction mentioned from the upper side of the vacuum cleaner to the suction container. This also makes it possible in a simple manner to ensure that the battery device does not protrude beyond the upper side of the vacuum cleaner when the battery device is held on the battery holder. In addition, it is thus possible in a simple manner for the battery device not to project laterally beyond the vacuum cleaner, since in particular its other lateral dimensions are smaller than those of the longest side.

In one embodiment, the battery device held on the battery holder has a longitudinal axis which is at least approximately parallel to the axis of rotation of the blower motor of the blower device, wherein the battery device is arranged overlapping the blower device with respect to this longitudinal axis. This longitudinal axis is in particular the axis in which the battery device has its greatest length. The overlapping in the respective directions allows the battery device to be positioned at a low cost on the suction head.

It is then advantageous if, along the longitudinal axis, the overlap length of the battery device or of the battery holder is at least 10%, and preferably at least 20%, and preferably at least 25% (and particularly advantageously at least 30%, and for example at least 40%) of the total length of the battery device or of the battery holder. A space-saving arrangement is thereby achieved. The battery device or the battery holder can be arranged by the overlap region next to the blower device or a partial region thereof.

It is also advantageous if the battery holder is arranged and constructed in such a way that the center of gravity of the held battery device is located above the center of gravity of the vacuum cleaner without battery device, in terms of the direction from the upper side of the suction head to the suction receptacle. This results in a space-saving arrangement of the battery device on the suction head.

It is advantageous if an actuating element for unlocking and/or locking the holding of the battery device on the battery holder is arranged on a handle, in particular an arched handle, arranged on the suction head or on a fastening region for the handle.

Thereby enabling the user to easily perform the operation. Furthermore, space-saving arrangement of the actuating element and the corresponding actuating device, such as a lever or a rocker, which may be present, is also possible.

In one embodiment, a post is provided as a fastening region for the handle, and a lever, in particular a slidable or pivotable lever, for locking/unlocking the battery device is held and/or guided on this post. This results in a mechanical construction with a space-saving application rod.

The object mentioned at the outset is furthermore achieved according to the invention in that the battery holder for the battery device comprises a movable protective device for the electrical contacts on the suction head.

When the battery device is not mounted on the battery holder, the protective device covers the electrical contacts on the suction head, so that it is protected, in particular against physical damage.

The movable protective device can be positioned on the suction head in a space-saving manner.

In particular, the protective device is designed such that when the battery device is inserted into the battery holder, the protective device is moved such that the electrical contacts for the battery device are exposed. Contact between the corresponding mating contact of the battery device and the electrical contact on the suction head can then be established automatically in a simple manner.

In particular, the protective device comprises a displaceable carriage with a protective region. The protective area covers the electrical contacts on the suction head when the battery device is not installed. By inserting the battery device into the battery holder, the carriage can be displaced so that the electrical contacts can be exposed and the mating contacts of the battery device can be brought into contact with the electrical contacts of the suction head.

In one embodiment, a carriage guide for the displaceable carriage is fastened to the housing of the suction head and/or to the motor mount of the blower motor. This allows a simple design while making optimum use of space.

In particular, it can be provided that a stop for limiting the mobility of the carriage is arranged or formed on the housing. This results in a simple design while minimizing the number of components. In particular, a protective position for the carriage can be defined in a simple manner, in which the protective region covers the corresponding contact on the protective head.

It is then advantageous if the sliding direction of the carriage is parallel/antiparallel to the insertion direction of the battery device on the battery holder. This allows a simple design with simple operability. An automatic protection or an automatic release of the protection can be achieved in a simple manner.

Advantageously, the displacement direction of the carriage is at least approximately parallel to the axis of rotation of the blower motor of the blower device and/or at least approximately parallel to the direction of height extension of the suction container and/or transversely and in particular perpendicularly to the rolling axis of the roller or rollers, via which the vacuum cleaner can be mounted in a drivable manner on the floor surface and/or at least approximately parallel to the turning axis of the roller or rollers, via which the vacuum cleaner can be mounted in a drivable manner on the floor surface and/or transversely and in particular perpendicularly to the longitudinal extension of the channel section of the at least one process air channel, which channel section is arranged directly below the battery holder and/or the battery device on the suction head, and the longitudinal extension corresponds to the main flow direction in the channel section for the process air flow and/or is at least almost parallel to the insertion direction of the suction head onto the aspirate container.

It is particularly advantageous if the movable carriage is supported by a spring device, wherein the spring force of the spring device must be overcome in order to displace the carriage to expose the electrical contact. This makes it possible to expose the electrical contacts in a simple manner when the battery device is installed. The force used during installation can overcome the spring force of the spring device.

The battery-operated vacuum cleaner according to the invention is in particular designed as a wet-dry vacuum cleaner.

Drawings

The following description of the preferred embodiments is intended to provide a thorough explanation of the present invention in connection with the accompanying drawings. Wherein:

figure 1 shows a perspective view of one embodiment of a vacuum cleaner according to the present invention;

fig. 2 shows a side view of the vacuum cleaner according to fig. 1 in the direction C according to fig. 1;

fig. 3 shows a top view of the vacuum cleaner according to fig. 1 in the direction B according to fig. 1;

fig. 4 shows a cross-sectional view along the line 4-4 according to fig. 1 in a cross-section in the directions a and C according to fig. 1;

fig. 5 shows a cross-sectional view along the line 5-5 according to fig. 1 in a cross-section in the directions a and C according to fig. 1;

fig. 6 shows a cross-sectional view along the line 6-6 according to fig. 3;

FIG. 7 shows a cross-sectional view along the line 7-7 according to FIG. 3;

FIG. 8 shows a cross-sectional view along the line 8-8 according to FIG. 3; and

fig. 9 shows an enlarged view of region D according to fig. 8.

Detailed Description

One embodiment of a vacuum cleaner according to the invention, which is shown in fig. 1 to 9 and is designated 10, comprises a suction container 12. The aspirate container 12 has a container bottom 14 (e.g., fig. 6) on which a container wall 16 is disposed. The container wall 16 is connected, for example, integrally to the container bottom 14 and projects therefrom.

The aspirate container 12 has, for example, an at least almost cylindrical configuration.

The aspirate container 12 has an interior space 18.

On the suction container 12, a suction connection 20 is positioned, which has a connection nipple 22 for a suction hose (not shown in the figures).

In one embodiment, the vacuum cleaner 10 includes a movable tray 24. A roller 26 is arranged on the disc 24. For example three or four rollers 26 are provided.

Each roller 26 is capable of rotating about a rolling axis 28.

It can be provided that the rollers 26 can be pivoted about the respective steering axis 30. The steering axis 30 is oriented perpendicular to the rolling axis of the respective roller 26.

The tray 24 has a receptacle 32 in the form of a recess for the suction container 12, for example. The suction container 12 is inserted firmly or releasably into this receptacle 32.

The suction container 12 is such that the vacuum cleaner 10 can stand up on the floor 34 (fig. 2) via the plate 24 in a drivable manner by means of its rollers 26.

The steering capability of the roller 26 enables a high level of operating comfort in terms of "orientation" of the vacuum cleaner 10 in the suction operating state.

The cleaner 10 comprises a cleaner head 36.

The suction head 36 is releasably secured to the aspirate container 12 via a securing device 38.

In one embodiment, the securing device 38 comprises

webs

40a, 40b (fig. 6), which are arranged opposite one another, in particular diagonally, and are positioned on the suction head 36 in a movable manner.

Corresponding snap elements 42 are arranged on the extraction container 12, with which the respective connecting

plate

40a or 40b can be snapped on.

The aspirate container 12 extends along a vertical axis 44 in a height direction 46 (fig. 7). When the cleaner 10 is normally placed on a flat bottom surface 34, the height direction 46 is perpendicular to this bottom surface 34.

The height direction 46 is perpendicular to the respective rolling axis 28 of the roller 26 and parallel to the respective steering axis 30.

The pipette tip 36 can be inserted onto the aspirate container 12 from above in an insertion direction 48 (see fig. 7). The insertion direction 48 is here antiparallel to the height direction 46.

The suction head 36 has a support region 50 which is in particular annular. When the suction head 36 is secured to the aspirate container 12, the suction head 36 is supported on the aspirate container 12, and in particular on an end-side region 52 of the aspirate container 12 (wherein this end-side region 52 faces away from the container bottom 14), by means of this support region 50.

The suction head 36 has a housing 54 (cover 54).

A blower device 56 is arranged in the housing 54. The blowing device 56 is used to generate a suction air flow. The blower device 56 is in one embodiment held on the suction head 36. When the suction head 36 is removed from the aspirate container 12, the blower device 56 (with suction head 36) is also removed from the aspirate container 12.

The blower device 56 includes a blower 58 and a blower motor 60. The blower motor 60 is an electric motor. It is provided with a motor shaft 62 with an axis of rotation 64.

The rotation axis 64 is parallel to the height direction 46 or parallel to the insertion direction 48.

The motor shaft 62 is connected in a rotationally fixed manner (drehfest) to one or more rotating wheels 66 of the blower 58 of the blower device 56. Blower motor 60 drives wheel 66 to rotate about axis of rotation 64.

In one embodiment, the channel 63 annularly surrounds the blower motor 60 and leads to an outlet on the housing 54.

A corresponding suction air flow can thus be generated at the blower 58, by means of which a negative pressure can be applied to the suction hose connected to the suction connection 20.

A filter device 68 is held on the suction head 36. In one embodiment, the filter arrangement 68 includes a filter basket 70. This filter basket 70 holds a filter 72.

It can be provided here that the filter basket 70 is positioned on the underside of the aspirate container 12 (wherein this underside faces the container bottom 14 when the suction head 36 is fastened to the aspirate container 12), so that the filter basket 70 sinks with the filter 72 into the interior 18 of the aspirate container 12 when the suction head 36 is fastened (see, for example, fig. 6).

The filter means 68 serves to filter out dust particles and prevent them from entering the air blowing means 56.

The blower motor 60 is held on the suction head 36 via a motor bracket 61. One or more passages 63 are formed in the motor bracket 61 to serve as cooling air passages of the blower motor.

The filter body 70 is in particular designed to be removable, for example for wet operation of the vacuum cleaner 10.

A process air passage 74 is arranged or formed in the suction head 36. The process air channel 74 establishes a fluid-active connection between the blower device 56 on the suction head 36 and the interior 18 of the aspirate container 12. Which is an exhaust passage of the blower device 56. It establishes a connection with the ambient air.

The cleaner head 36 has an upper side 76 (see, e.g., fig. 2). The height of the vacuum cleaner 10 (when the cleaner head 36 is secured to the suction receptacle 12) is here between the upper side 76 and the floor 34 on which the vacuum cleaner 10 is standing.

An arcuate handle 78 (e.g., fig. 2) is disposed on the housing 54 of the suction head 36. The arcuate handle is configured so that the cleaner head 36 (and hence the cleaner 10) can be grasped from above. The arcuate handle 78 defines an intermediate space 80 through which an operator's fingers may pass to grasp the arcuate handle 78.

The upper side 82 of the arcuate handle 78 defines the upper side 76 of the cleaner head 36 and hence of the cleaner 10.

The envelope surface of the suction head 36 on the upper side 76 is, for example, a plane which is oriented transversely and in particular perpendicularly to the vertical axis 44 of the aspirate container 12.

The arcuate handle 78 has a bridge 84 which delimits the intermediate space 80 toward the upper side 82 and has a first pillar 86 and a second pillar 88, by means of which the bridge 84 is held on the housing 54. First and

second uprights

86, 88 are spaced apart from one another and each laterally bound intermediate space 80.

The cleaner 10 is battery operated and in particular is supplied with current via a rechargeable battery arrangement 90. The battery device 90 is in particular a multi-cell battery pack or battery pack.

A battery holder 92 for holding the battery device 90 is arranged on the suction head 36.

The housing 54 has a wall 94 facing the suction connection 20, which is oriented obliquely to the height direction 46. The wall 94 is in particular at an acute angle 96 to the upper side 76 (or the envelope plane of the upper side 76). Here, a typical value range of the acute angle 96 is between 50 ° and 70 °.

The wall 94 may be flat or nearly flat, or may have a curvature.

The second leg 88 of the arcuate handle 78 abuts the wall 94 or is located adjacent the wall 94. (first post 86 is spaced farther from wall 94 than second post 88.)

On the wall 54, a free region 98 is formed in the form of a recess or depression. The free region 98 has a middle plane 100 which is oriented parallel to the vertical axis 44 and is at the same time a middle plane of the bow handle 78.

The respective cutout in the suction head 36 formed by the free region 98 has at least almost the shape of a hollow cuboid.

In one embodiment, a switch 102 is disposed laterally on the free region 98 on the wall 94. The switch 102 is in particular a start-stop switch for the vacuum cleaner 10 (in the case of a suction operation).

Suction connection 20 is likewise located at the median plane 100; the middle plane 100 is also the middle plane of the suction fitting 20.

The free region 98 is delimited downwards by a bottom wall 106 (fig. 9) in a direction pointing from the upper side 76 toward the aspirate container 12 (and in a direction substantially parallel to and opposite the height direction 46). The bottom wall 106 is oriented transverse to the vertical axis 44 and in particular perpendicular to the vertical axis.

Laterally, the free region 98 is delimited by opposing

side walls

108, 110, wherein these

side walls

108, 110 are spaced apart from one another and project transversely from the bottom wall 106.

The

side walls

108, 110 are in particular oriented parallel to the height direction 46.

The free region 98 is bounded rearwardly by a rear wall 112 (see, e.g., fig. 3). The rear wall 112 extends transversely from the bottom wall 106 and is oriented, in particular, perpendicularly to the bottom wall or vertical axis 44. The rear wall 112 is connected to the

side walls

108 and 110 and is oriented transversely thereto, in particular perpendicularly thereto.

The mentioned, rectangular parallelepiped hollow chamber is formed between the bottom wall 106, the

side walls

108, 110 and the rear wall 112.

On the free region 98, a battery holder 92 is arranged on the suction head 96. In one embodiment, it is arranged partially and in particular completely on the rear wall 112.

The free region 98 is closed off downwards (towards the aspirate container 12) by a bottom wall 106. It is closed back by a rear wall 112. It is closed laterally by

side walls

108 and 110. The free region 98 is open upward, i.e., toward the upper side 82; the free region 98 opens in a direction away from the bottom wall 106. This enables the battery device 90 to be loaded onto the battery holder 92 from above.

Furthermore, the free region 98 opens forwardly away from the rear wall 112.

This allows the battery device 90 to be grasped, for example, when the battery holder 92 is inserted or removed from the battery device 90. The battery device has a grip region 113 for this purpose (see fig. 2).

When the battery device 90 is held on the battery holder 92, this gripping region 113 does not sink or does not sink completely into the free region 98, but is accessible laterally. The operator can then grasp the opposite gripping regions 113 of the battery device 90 by hand and guide the battery device 90 upward.

By having the open side of the free area 98 facing forward, the battery device 90 can be positioned accordingly. It is furthermore possible to be able to read a display arranged on the battery device 90.

The free region 98 forms a receiving region 118 for at least one partial region of the battery device 90.

The battery holder 92 has a guide 114 for a mating guide 116 of the battery device 90.

The guide 114 is in particular formed on the rear wall 112.

The guide 114 comprises, for example, one or more guide rails and the mating guide 116 comprises one or more slots, wherein one slot matches one guide rail. The kinematic reversal is also possible, wherein, for example, one or more grooves are arranged on the rear wall 112 and corresponding guide tracks are arranged on the battery device 90.

It is also possible for the grooves and the guide tracks to be arranged in correspondence with one another both on the battery holder 92 and on the battery device 90.

As above, the battery device 90 is loaded onto the battery holder 92 from above. The insertion direction 120 is in particular parallel to the vertical axis 44 and in particular antiparallel to the height direction 46.

The insertion direction 120 is at least approximately parallel to the axis of rotation 64 of the blower motor 60, i.e. parallel or at most deviates from parallelism by a small acute angle, for example by an acute angle of at most 20 °.

Furthermore, the insertion direction 120 is oriented transversely, in particular perpendicularly, to the rolling axis 28 and is oriented at least approximately parallel to the steering axis 30.

The insertion direction is furthermore oriented at least approximately parallel to the insertion direction 48.

The lead-out direction 122 in which the battery device 90 is led out from the battery holder 92 (see fig. 8) is antiparallel to the insertion direction 120.

A locking device 124 is assigned to the battery holder 92, by means of which the battery device 90 correctly positioned on the battery holder 92 can be fixed to the suction head 36, in particular by locking.

In one embodiment, the battery device 90 has one or more snap recesses 126. One or more posts 128 having (at least one) corresponding snap noses 130 are positioned on the suction head 36. The lever 128 is in particular designed as a rocker and is mounted pivotably on a pivot bearing 129.

The respective lever 128 is spring-loaded such that the lever 128 is spring-loaded, i.e. the snap nose 130 is automatically pressed into the snap recess 126 when the snap recess 126 is opposite the snap nose 130.

In order to release such a snap connection, a corresponding spring force must be overcome. The lever 128 has an actuating element 132 to which the operator can apply a corresponding pressure, so that the snap-in state is cancelled, i.e. the spring force is overcome.

The lever 128 is arranged in particular pivotably on the second upright 88 as a fastening region for the bow handle 78.

The actuating element 132 is in particular arranged such that it is located on the upper side 82 of the bow handle 78 and can therefore be actuated accordingly.

In one embodiment, the operating element 132 is part of the lever 138.

When the battery device 90 is retained on the battery holder 92, it does not project beyond the upper side 96 of the cleaner head 36 and hence the upper side 96 of the cleaner 10.

The corresponding upper side 134 of the battery device 90 is here set back downward (toward the aspirate container 12) relative to the upper side 76 of the suction head 36 or is flush relative to the transition to the upper side 82 of the arcuate handle 78.

The battery device 90 furthermore does not project beyond the envelope of the outer side 136 or the outer side 136 (see fig. 2) of the vacuum cleaner 10.

In one embodiment, a movable protective device 138 is provided for the electrical contact 140. An electrical contact 140 is disposed on the tip 36. The electrical connection of the battery device 90 is achieved when the mating electrical contact of the battery device 90 is in electrical contact with the electrical contact 140 of the suction head 36.

When the battery device 90 is not mounted on the battery holder 92, the movable holding device 138 covers the electrical contacts 140 on the suction head 36.

In one embodiment, the movable guard 138 includes a movable carriage 142. The movable carriage 142 can be displaced in a displacement direction, which is parallel to the insertion direction 120 or the removal direction 122.

The carriage 142 is guided on the carriage guide 123. In one embodiment, the carriage guide 143 is fixed to the motor bracket 61.

It can be provided that the housing part 145 of the housing 54 of the suction head 36 forms a stop which limits the movability of the carriage 142.

The other housing parts can be responsible for sealing, in particular from top to bottom (in the direction toward the intake container 12), between the recess for the rod 128 and the blower motor 60 in the housing 54.

A movable carriage 142 is supported on the suction head 36 via a spring arrangement 144.

A spring arrangement 144 is dedicated to pressing the slidable carriage 142 away from the bottom wall 106.

When the battery device 90 is not installed on the battery holder 92, the displaceable carriage 142 is then positioned by the spring device 144 such that a protective region 146 on the carriage 142 covers the electrical contacts 140.

Corresponding positions are not shown in the figures.

When the battery device 90 is inserted in the insertion direction 120, the slidable carriage 142 is moved in the insertion direction 20 counter to the spring force of the spring device 144 by the insertion movement of the battery device 90.

Thereby moving the associated protective area 146 and exposing the electrical contact 140. Electrical contact of battery device 90 with electrical contacts 140 may then be achieved.

When the battery device 90 is removed in the removal direction 122 (after releasing the lever 128), the movable carriage 142 is moved in the removal direction 122 under the action of the spring force of the spring device 144. The protective region 146 may then cover the electrical contact 140.

For more details on the design of the corresponding battery holder 92, see the same applicant's 2016 unpublished international application PCT/EP2016/074233, 10.10.10.10. This text is expressly incorporated herein by reference.

The battery device 90 extends along a longitudinal axis 148 (see fig. 9). The battery device 90 has an overall length L along the longitudinal axis 148. In particular, the battery device 90 has its largest dimension in the longitudinal axis 148.

The longitudinal axis 148 is parallel to the insertion direction 120, or to the rotational axis 64 or to the vertical axis 44.

When the battery device is held on the battery holder 92, there is an overlapping region (in terms of a direction parallel to the longitudinal axis 148) of the battery device 90 and the blower device 56.

The corresponding overlap region is indicated by reference numeral 150 in fig. 8.

In the direction of the longitudinal axis 148, this overlap region 150 has, in particular, a length, in the case of the battery device 90, which is equal to at least 10%, preferably at least 20%, and preferably at least 25%, of the total length L of the battery device 90.

Space-saving installation of the battery device 90 on the vacuum cleaner 10 is thus achieved.

The process air duct 74 has a duct section 152 (fig. 5, 8, 9) directly below the battery holder 92 or the battery device 90; the battery holder 92 or the battery device 90 falls onto this channel section 152 along the projection of the vertical axis 44.

The channel section 152 is configured (dimensioned) such that the installed battery device 90 does not project beyond the upper side 96 of the suction head 36.

In one exemplary embodiment, the respective channel section 152 has a first region 154 assigned to the filter basket 70 and a second region 156 located above it in the height direction 46, which is closer to the blower motor 60.

The first region 154 has a height h1 in the height direction 46. The second region has a height 156h2 in the height direction 46.

The total height H1+ H2.

Preferably, the overall height H is at most 70mm, and in particular at most 65 mm.

The duct section 152 located directly below the battery device 90 or the battery holder 92 is arranged next to the duct section 158 of the (cooling air) duct 63 of the motor bracket 61. This channel section 158 (fig. 8, 9) of the channel 63 is located behind the rear wall 112.

The cooling air channel 63 and the process air channel 74 and thus also the

channel sections

152 and 158 are not fluidically connected to one another. They are separated by (at least one) wall.

A step 160 is formed at the transition from the channel section 152 to the channel section 158. This step 160 corresponds to the cross-sectional extension of the process air channel 74 compared to the channel 63, wherein the height, in particular in the height direction 46, increases at the step 160.

A step 160 between the

channel sections

152 and 158 is formed by the respective walls of the

channel sections

152 and 158.

The corresponding stepped region with the step 160 between the

channel sections

152 and 158 is a counterpart of the free region 98, which is likewise a stepped region.

The space-saving positioning of the battery device 90 on the suction nozzle 96 is possible by means of the step 160 between the process air duct 74 and the duct 63 (for cooling air).

In principle, it is also possible, alternatively or additionally, to form a step on the cooling air channel 63 by a corresponding formation of the cooling air channel 63D, so that a corresponding positioning of the battery device 90 is achieved and in particular this battery device 90 can be positioned close to the center (close to the center axis) of the suction nozzle 36.

The channel section 152 has a longitudinal extension in a direction transverse to the rotation axis 64. Wherein the main flow direction of the process air is transverse and in particular perpendicular to the axis of rotation 64.

The vacuum cleaner according to the invention functions as follows:

for the suction operating state, the suction head 36 is fixed to the aspirate container 12 via the fixing device 98.

The suction hose is connected to the suction connection 20.

The battery device 90 is loaded onto the battery holder 92.

The blower motor 60 is supplied with electrical energy by a battery device 90, and a suction air flow is generated by the blower 58.

Through which suction air flow suction of suction material into the inner space 18 is possible.

Configuring the process air duct 74 with its duct section 152 and the (cooling air) duct 63 with its duct section 158 and the step region 160 enables space-saving installation of the battery device 90.

The battery device 90 can be inserted from above in an insertion direction 120 onto the battery holder 92 and removed upwards in a removal direction 122.

This results in a space-saving application to the suction head 36. In particular without having to increase its lateral dimensions.

The locking device 124 can be constructed in a simple manner by means of the lever 128. Rod 128 may be applied using second post 88.

A space-saving installation is furthermore possible by the overlap region 150.

The battery holder 92 with its guide 114 can be arranged on the suction head 36 in a space-saving manner by means of a loading direction 120 from above or an upward removal direction 122.

When the battery device 90 is not installed, the electrical contacts 140 are optimally protected by the movable protective device 138.

In particular, having the center of gravity of the battery device 90 held on the battery holder 92 positioned above the center of gravity of the cleaner 10 (in the case where the suction is not received and the battery device 90 has been removed). An optimum arrangement can thus be achieved with simple removability or embeddability.

List of reference numerals

10 vacuum cleaner

12 container for sucking articles

14 container bottom

16 container wall

18 inner space

20 suction joint

22 joint sleeve mouth

24 disks

26 roller

28 rolling axis

30 steering axis

32 accommodating part

34 bottom surface

36 suction head

38 fixed direction

40a connecting plate

40b connecting plate

42 snap element

44 vertical axis

46 height direction

48 direction of insertion

50 support area

52 end side region

54 casing

56 blower device

58 blower

60 blower motor

61 Motor support

62 Motor shaft

63 Cooling air channel

64 axis of rotation

66 turning wheel

68 Filter device

70 filtering basket

72 filter

74 Process air channel

76 upper side

78 arc handle

80 intermediate space

82 upper side

84 connecting bridge

86 first upright post

88 second column

90 battery device

92 Battery holder

Wall of 94

Acute angle of 96

98 free area

100 mid-plane

102 switch

104 direction

106 bottom wall

108 side wall

110 side wall

112 rear wall

113 grip region

114 guide device

116 mating guide device

118 receiving area

120 direction of loading

122 derived direction

124 locking device

126 snap recess

128 bar

129 pivot bearing

130 buckle nose

132 operating element

134 upper side

136 outside of the shaft

138 movable protective device

140 electric contact

142 movable sliding rack

143 sliding rack guide piece

144 spring device

145 housing part

146 protective zone

148 longitudinal axis

150 overlap region

152 channel section

154 first region

156 second region

158 channel section

160 step part

Claims

1. Battery-operated vacuum cleaner, comprising a suction container (12), a suction head (36) arranged on the suction container (12), a blowing device (56) for generating a suction air flow and at least one process air channel (74) which is fluidically connected to the blowing device (56) and is arranged or formed on the suction head (36), characterized in that a battery holder (92) for a battery device (90) is positioned on the suction head (36) between the at least one process air channel (74) of the blowing device (56) and an upper side (76) of the suction head (36),

forming a free region (98) on the suction head (36), on which the battery holder (92) is arranged, wherein the free region (98) is open toward the upper side (76) and is open toward at least one side transverse to the upper side (76),

forming a receiving region (118) on the free region (98) and/or forming a receiving region (118) by the free region (98), wherein the battery holder (92) is placed on the receiving region (118), and wherein the receiving region (118) is delimited by a bottom wall (106) and a rear wall (112) oriented transversely to the bottom wall (106),

the rear wall (112) is arranged between the at least one process air channel (74) and the upper side (76),

the bottom wall (106) covers at least one channel section (152) of the at least one process air channel (74).

2. The battery-operated vacuum cleaner according to claim 1, wherein the air blowing device (56) is positioned on the suction head (36).

3. The battery-operated vacuum cleaner according to claim 1 or 2, characterized in that an arcuate handle (78) is arranged on the suction head (36), which arcuate handle defines an upper side (76) of the suction head (36).

4. The battery-operated vacuum cleaner according to claim 1 or 2, characterized in that the battery holder (92) is arranged and constructed in such a way that the battery device (90) does not project beyond the upper side (76) of the suction head (36) when the battery device (90) is held on the battery holder (92).

5. The battery-operated vacuum cleaner according to claim 4, wherein the battery device (90) arranged on the battery holder (92) is flush with the arched handle (78).

6. The battery-operated vacuum cleaner according to claim 1 or 2, wherein the insertion direction (120) and/or the removal direction (122) of the battery device (90) on the battery holder (92) is transverse to the envelope plane of the upper side (76) of the suction head (36);

and/or at least almost parallel to the axis of rotation (64) of the blower motor (60) of the blower device (56);

and/or at least almost parallel to the height extension direction (46) of the aspirate container (12);

and/or transverse to one or more rolling axes (28) of rollers (26) which enable the vacuum cleaner to stand on a bottom surface (34) in a driving manner;

and/or at least almost parallel to a steering axis (30) of one or more steerable rollers (26) which enable the vacuum cleaner to stand on a bottom surface (34) in a driving manner;

and/or transversely to a longitudinal direction of extent of a channel section (152) of the at least one process air channel (74), wherein the channel section (152) is arranged directly below the battery holder (92) and/or the battery device (90) on the suction head (36) and the longitudinal direction of extent corresponds to a main flow direction in the channel section (152) for a process air flow;

and/or at least almost parallel to the insertion direction (48) of the tip (36) on the aspirate container (12).

7. The battery-operated vacuum cleaner as claimed in claim 1, characterized in that the free region (98) is formed on a wall (94) which is inclined with respect to a direction (44) from the upper side (76) of the suction head (36) to the suction container (12).

8. The battery-operated vacuum cleaner according to claim 7, characterized in that a switch (102) is arranged on the wall (94).

9. The battery-operated vacuum cleaner according to claim 1, wherein the battery holder (92) is arranged relative to the free region (98) such that the held battery device (90) does not project laterally beyond the suction head (36).

10. The battery-operated vacuum cleaner as claimed in claim 1, characterized in that the free region (98) is open with respect to the upper side (76) of the suction head (36), so that the battery device (90) can be inserted from the upper side (76) of the suction head (36) onto the battery holder (92).

11. The battery-operated vacuum cleaner according to claim 1, wherein the free area (98) is laterally open so that an optical display on the battery device (90) is readable when the battery device (90) is loaded onto the battery holder (92).

12. The battery-operated vacuum cleaner according to claim 1 or 2, characterized in that a suction connection (20) for a suction hose is arranged on the side of the vacuum cleaner on which the battery holder (92) is arranged.

13. The battery-operated vacuum cleaner as claimed in claim 12, characterized in that the suction connection (20) is arranged below the battery holder (92) in relation to a direction (44) from an upper side (76) of the suction head (36) to the suction container (12).

14. The battery-operated vacuum cleaner according to claim 1 or 2, characterized in that a channel section (152) of the at least one process air channel located directly below the battery holder (92) and/or the battery device (90) has a total height (H) of at most 80 mm.

15. The battery-operated vacuum cleaner as claimed in claim 1 or 2, characterized in that the channel section (152) of the at least one process air channel (74) which is arranged directly below the process air channel (74) with respect to the direction (44) from the upper side (76) of the suction head (36) to the suction container (12) is of multi-chamber or multi-part construction.

16. The battery-operated vacuum cleaner according to claim 1 or 2, characterized in that at least one step (160) is formed on the at least one process air channel (74) and/or on the at least one cooling air channel (63) and/or on a transition from the at least one process air channel (74) to the cooling air channel (63).

17. The battery-operated vacuum cleaner as claimed in claim 16, characterized in that the at least one step (160) is configured so as to be located directly below the battery holder (92) and/or a battery device (90) held by the battery holder in the direction (44) from the upper side (76) of the suction head (36) to the suction container (12).

18. The battery-operated vacuum cleaner as claimed in claim 1 or 2, characterized in that the battery device (90) held on the battery holder (92) has a longitudinal axis (148) which is at least approximately parallel to the axis of rotation (64) of the blower motor (60) of the blower device (56), and in that the battery device (90) is arranged in an overlapping manner with respect to the longitudinal axis (148) with respect to the blower device (56).

19. The battery-operated vacuum cleaner according to claim 18, wherein along the longitudinal axis (148) the overlap length of the battery device (90) or of the battery holder (92) is at least 10% with respect to the total length (L) of the battery device (90) or of the battery holder (92).

20. The battery-operated vacuum cleaner as claimed in claim 1 or 2, characterized in that the battery holder (92) is arranged and constructed in such a way that, in the direction (44) from the upper side (76) of the suction head (36) to the suction container (12), the center of gravity of the held battery device (90) is located above the center of gravity of a vacuum cleaner without a battery device (90).

21. The battery-operated vacuum cleaner as claimed in claim 1 or 2, characterized in that an actuating element for unlocking and/or locking the retention of the battery device (90) on the battery holder (92) is arranged on a handle (78) arranged on the suction head (36) or on a fastening region for the handle (78).

22. Battery-operated vacuum cleaner according to claim 21, characterized by a post as fastening area for the handle (78), wherein a lever (128) for locking/unlocking the battery device (90) is held and/or guided on the post.

23. The battery-operated vacuum cleaner as claimed in claim 1 or 2, characterized in that the battery holder (92) for the battery device (90) comprises a movable protective device for an electrical contact (140) on the suction head (36).

24. The battery-operated vacuum cleaner according to claim 23, wherein the protective device is configured such that upon loading a battery device (90) onto the battery holder (92) the protective device moves, exposing an electrical contact (140) for the battery device (90).

25. The battery-operated vacuum cleaner of claim 23, wherein the protective device comprises a slidable carriage having a protective region (146).

26. The battery-operated vacuum cleaner as claimed in claim 25, characterized in that a carriage guide (143) for the carriage is fixed on the housing (54) of the suction head (36) and/or on a motor bracket (61) of a blower motor (60) of the blower device.

27. The battery-operated vacuum cleaner according to claim 26, wherein a stop for limiting the movability of the carriage is arranged or formed on the housing (54).

28. The battery-operated vacuum cleaner as claimed in claim 25, characterized in that the sliding direction of the carriage is parallel/anti-parallel to the insertion direction (120) of the battery device (90) on the battery holder (92).

29. The battery-operated vacuum cleaner as claimed in claim 25, characterized in that the sliding movement direction of the carriage is at least almost parallel to the axis of rotation (64) of the blower motor (60) of the blower device (56);

and/or transversely to a longitudinal direction of extension of a channel section (152) of the at least one process air channel, wherein the channel section (152) is arranged directly below a battery holder (92) and/or a battery device (90) on the suction head (36) and the longitudinal direction of extension corresponds to a main flow direction in the channel section (152) for a process air flow;

and/or at least almost parallel to the insertion direction (48) of the suction head (36) onto the suction container (12).

30. The battery-operated vacuum cleaner according to claim 25, wherein the movable carriage is supported by a spring device (144), wherein a spring force of the spring device (144) has to be overcome in order to displace the carriage to expose the electrical contact (140).

31. The battery-operated vacuum cleaner of claim 1 or 2, wherein the vacuum cleaner is configured as a wet and dry vacuum cleaner.

32. The battery-operated vacuum cleaner according to claim 1 or 2, wherein the insertion direction (120) and/or the removal direction (122) of the battery device (90) on the battery holder (92) is/are perpendicular to the envelope plane of the upper side (76) of the suction head (36);

and/or perpendicular to one or more rolling axes (28) of rollers (26) which enable the vacuum cleaner to stand on a bottom surface (34) in a driving manner;

and/or perpendicular to a longitudinal direction of extent of a channel section (152) of the at least one process air channel (74), wherein the channel section (152) is arranged directly below the battery holder (92) and/or the battery device (90) on the suction head (36) and the longitudinal direction of extent corresponds to a main flow direction in the channel section (152) for a process air flow;

33. The battery-operated vacuum cleaner according to claim 7, characterized in that a switch (102) is arranged on the wall (94) and that the switch is arranged beside the battery holder (92).

34. The battery-operated vacuum cleaner according to claim 7, characterized in that a switch (102) is arranged on the wall (94) and is arranged beside the battery holder (92) and outside the free region (98).

35. The battery-operated vacuum cleaner as claimed in claim 12, characterized in that the suction connection (20) is arranged on the suction container (12).

36. The battery-operated vacuum cleaner according to claim 1 or 2, characterized in that a channel section (152) of the at least one process air channel located directly below the battery holder (92) and/or the battery device (90) has a total height (H) of at most 70 mm.

37. The battery-operated vacuum cleaner according to claim 1 or 2, characterized in that a channel section (152) of the at least one process air channel located directly below the battery holder (92) and/or the battery device (90) has a total height (H) of at most 65 mm.

38. The battery-operated vacuum cleaner as claimed in claim 25, characterized in that the sliding movement direction of the carriage is at least almost parallel to the axis of rotation (64) of the blower motor (60) of the blower device (56);

and/or perpendicular to a longitudinal direction of extension of a channel section (152) of the at least one process air channel, wherein the channel section (152) is arranged directly below a battery holder (92) and/or a battery device (90) on the suction head (36) and the longitudinal direction of extension corresponds to a main flow direction in the channel section (152) for a process air flow;

39. The battery-operated vacuum cleaner according to claim 18, wherein along the longitudinal axis (148) the overlap length of the battery device (90) or of the battery holder (92) is at least 20% with respect to the total length (L) of the battery device (90) or of the battery holder (92).

40. The battery-operated vacuum cleaner according to claim 18, wherein along the longitudinal axis (148) the overlap length of the battery device (90) or of the battery holder (92) is at least 25% with respect to the total length (L) of the battery device (90) or of the battery holder (92).