Electrical apparatus, in particular suction apparatus or machine tool

Abstract

This invention relates to an electrical instrument, particularly an electrical instrument of the type of a suction instrument (10) or a machine tool, having a housing (20) in which at least one electrical consumer, particularly an electric drive motor (11D), is arranged. The electrical instrument has a current supply mechanism (80) with an energy storage housing (81) for supplying current to the electrical consumer, particularly the drive motor (11D). At least two instrument interfaces (90A, 90B) are arranged within the internal space of the energy storage housing for detachably connecting corresponding energy storage interfaces (190A, 190B) of an electrical energy storage device (170A, 170B), particularly a battery pack. The instrument interfaces (90A, 90B) are arranged at opposing sidewalls (83, 84) of the energy storage housing (81), such that the energy storage devices (170A, 170B) can be arranged at the instrument interfaces (90A, 90B) with their bottom walls (175) facing each other.

Description

Technical Field

[0001] The present invention relates to an electrical instrument, for example of the type of a suction instrument or tool machine and / or as a portable electrical instrument, the electrical instrument having a housing in which at least one electrical consumer, particularly a drive motor, is arranged, wherein the electrical instrument has a current supply mechanism with an energy storage housing for supplying current to the electrical consumer, particularly the drive motor, and at least two instrument interfaces are arranged in the internal space of the energy storage housing for detachably connecting to corresponding energy storage interfaces of an electrical energy storage device, particularly a battery pack. Background Technology

[0002] Energy storage devices, for example, involve so-called battery packs, which can be detachably connected to electrical instruments, i.e., suction instruments or machine tools, especially handheld machine tools. In this type of electrical instrument, to improve portability and / or power output, it is necessary for multiple, for example, two, such energy storage devices to be ready for power output simultaneously. However, the power density of rechargeable energy storage devices is still so low that they are relatively bulky. Accordingly, the energy storage device housing must have a large housing volume, so that the energy storage device can also be grasped by the operator to remove it, for example, from the energy storage device housing. Summary of the Invention

[0003] Therefore, the object of the present invention is to provide an improved concept for arranging energy storage devices in the housing of electrical instruments of the type mentioned at the beginning, such as movable or stationary ones.

[0004] To solve the aforementioned task, in electrical instruments of the type mentioned at the beginning, especially the aforementioned absorption instrument or machine tool, the instrument interface is arranged on the opposing sidewalls of the energy storage housing, so that the energy storage can be arranged with its bottom wall facing each other at the instrument interface.

[0005] The advantages of this arrangement are particularly evident from the fact that the energy storage unit can be arranged either at the bottom or at the bottom wall, thus the area extending next to the bottom wall of the energy storage unit serves as an operating space for manipulating or operating the energy storage unit. Although the wiring for the instrument interface within the housing is relatively expensive, there is a significant improvement in operational comfort.

[0006] Advantageously, the electrical instrument is a portable electrical instrument. However, the present invention can also be applied without any problems to stationary electrical instruments.

[0007] An energy storage device comprises, for example, multiple battery cells. The battery cells are arranged side-by-side in a row within the housing of the respective energy storage device. The battery cells are connected in series and / or in parallel with each other, for example.

[0008] The energy storage device is preferably a rechargeable energy storage device. To charge the energy storage device, it can be removed from its housing. The energy storage device can, for example, be connected to a charging device via its energy storage interface for charging.

[0009] The battery cell has, for example, a cylindrical housing or cylindrical shape. The battery cell is arranged, for example, in one or more locations within the energy storage housing of the energy storage device.

[0010] The energy storage interfaces of the preferred portable electrical instruments are connected in series or in parallel with each other, so that, for example, the supply voltage provided by the energy storage is added together in the case of series connection. When the energy storage interfaces are connected in parallel with each other, for example, a higher prepared current intensity is provided.

[0011] There is no problem that another energy storage device can be arranged at the energy storage interface. The other energy storage device can also be held in or at the energy storage interface with its bottom wall facing each other.

[0012] However, it is also feasible for, for example, fixed or movable electrical instruments to have energy storage interfaces that are not located on the opposing sidewalls of the energy storage housing.

[0013] Furthermore, the electrical instrument may also have at least one additional energy storage compartment, in which, for example, an energy storage interface is provided, arranged on opposite sides of the retaining wall of the energy storage compartment. At least one energy storage compartment may also have only one unique energy storage interface for connecting a single energy storage device. The at least one additional energy storage compartment channel may be designed as a receiving recess, a receiving shelf, or the like.

[0014] When an electrical instrument is a portable electrical instrument, it can be said that its portability is manifested in the following way: it is not assigned a network interface.

[0015] There are multiple energy storage devices, i.e., at least two energy storage devices, in movable or stationary electrical instruments to provide sufficient energy supply.

[0016] The power consumer is preferably an electric drive motor. However, the electrical instrument, as a power consumer, can also include, for example, a charging interface for charging another electrical energy storage device. For example, the housing has an internal space in which the charging interface for charging another electrical energy storage device is arranged.

[0017] Machine tools, for example, involve sawing machines, milling machines, or the like.

[0018] Advantageously, the energy storage housing has an insertion opening through which an energy storage device can be inserted. An extension of the insertion opening is preferably adapted to allow one energy storage device to be inserted into or removed from the energy storage housing, while another energy storage device is disposed within it. Advantageously, the insertion opening is located on the outer wall of the housing.

[0019] However, it is now possible to consider, in principle, that the energy storage housing has an opening on the side opposite to the insertion opening, thus creating, for example, a channel. Such a channel or through opening is particularly suitable for cooling the energy storage device arranged in the energy storage housing.

[0020] The energy storage housing is preferably designed as a recess or frame on the outer wall of the housing.

[0021] Preferably, the energy storage housing is configured such that, when the energy storage is housed within the energy storage housing, the energy storage extends at a maximum of 10% of its length before protruding from or only protruding to the outer contour of the energy storage housing and / or the housing. Thus, it is advantageous that the energy storage is positioned such that it can be fully engaged within the energy storage housing and / or is arranged at the wall of the housing before protruding from it, particularly from the outer wall of the housing.

[0022] Advantageously, the instrument interface has a longitudinal guide profile for guiding engagement of the energy storage interface along the mating axis. The longitudinal guide profile includes, for example, guide grooves and guide protrusions, which extend accordingly along the mating axis.

[0023] The insertion axes can be parallel to each other. However, it is also possible for the insertion axes to be arranged at an angle relative to each other, preferably at a small angle of up to 30°, especially up to 20°, particularly preferably up to 10°, or even more preferably up to 5°.

[0024] Preferably, the instrument interface also has a rear gripping profile that works in conjunction with the mating rear gripping profile of the energy storage interface, so that the energy storage is held at the instrument interface in a shape that conforms laterally to its respective plug axis when it is positioned at the instrument interface. For example, the rear gripping profile includes a retaining protrusion extending laterally to the respective plug axis, which can be brought into engagement or disengaged from engagement by sliding manipulation parallel to the plug axis.

[0025] Furthermore, it is advantageous that the instrument interface includes a locking mechanism for locking the energy storage interface. The locking mechanism includes, for example, one or more locking receptacles. The energy storage interface has a locking mechanism complementary to the locking mechanism of the instrument interface, for example, having at least one locking protrusion.

[0026] The instrument interface of the electrical instrument preferably includes contact components for establishing an electrical connection to a contact component of an energy storage interface. The contact components of the instrument interface and / or energy storage interface include, for example, power supply contacts and / or data contacts.

[0027] Contact components include, for example, spring contacts, contact tongues, or the like.

[0028] Preferably, when the energy storage device is plugged into the instrument interface, the contact components of the energy storage device interface and the instrument interface make electrical contact with each other.

[0029] Advantageously, all the contacts of the instrument interface contact assembly are arranged on the following sidewall and / or on the only sidewall where the instrument interface is arranged.

[0030] The energy supply contact is used to supply power to at least one electrical consumer of an electrical instrument, particularly a drive motor.

[0031] The data contacts of the instrument interface are used for data transfer from the energy storage device to the electrical instrument and / or vice versa. The data contacts are connected, for example, to the control unit of the electrical instrument, through which the control unit obtains information about the charging state and / or voltage of the corresponding energy storage device, for example, from the energy storage device. The energy storage device may also include a control unit.

[0032] The corresponding control unit of the energy storage device and / or electrical instrument includes, for example, one or more processors and a memory, in which, for example in the case of an electrical instrument, a control program for operating the electrical instrument is stored, and in the case of an energy storage device, a control program for controlling the energy storage device, such as a charging program, is stored. The corresponding control unit of the electrical instrument or energy storage device is designed to implement the program code of the corresponding control program.

[0033] The energy storage housing can be open, for example, at a side extending between the sidewalls. However, preferably, the energy storage housing is completely surrounded by a peripheral wall. The peripheral wall extends from the insertion opening into the interior space of the housing.

[0034] Preferably, the energy storage housing has a connecting wall extending between opposing sidewalls, which limits the internal space for housing the energy storage. The connecting wall is, for example, a top wall or a bottom wall. The connecting wall, along with the sidewalls, forms, for example, the peripheral walls of the energy storage housing.

[0035] Advantageously, when the energy storage device is housed in the energy storage housing, an operating space is provided between at least one connecting wall and the energy storage device opposite it for gripping the energy storage device, thereby enabling, for example, lateral gripping and / or manipulation of the energy storage device.

[0036] Preferably, the operating space is configured such that it has a width corresponding to the width of an adult finger and / or at least 1.5 cm, preferably at least 2 cm. That is, the operator can engage their fingers in the operating space, for example, to grasp the corresponding energy storage device in a clamp-like grip.

[0037] By having an energy storage unit housed at the bottom, it is possible to implement an advantageous and undoubtedly feasible design.

[0038] Preferably, the operating space extends continuously between the sidewalls of the energy storage housing. The operating space preferably has a constant height between the sidewalls. However, it is also feasible for the operating space to have a larger width in or near the bottom wall region than near the sidewalls. Then, it is also feasible for the operator to grip into the operating space to optionally manipulate one or more energy storage devices, or both energy storage devices simultaneously.

[0039] An advantageous design involves arranging an operating space between each connecting wall and its opposite energy storage unit, through which the energy storage unit can be clamped in a clip-like manner on its opposing longitudinal sides when housed within the energy storage unit. It is in this design that the clip-like gripping method for holding the energy storage unit is readily feasible.

[0040] Therefore, a preferred design is configured such that an operating space is provided between each connecting wall and the energy storage unit opposite it, allowing the energy storage unit to be gripped in a clamp-like manner on its opposing longitudinal sides when it is housed in the energy storage unit. For example, an operator can grip the energy storage unit in a clamp-like or clip-like manner and pull it out of the energy storage unit.

[0041] Furthermore, it is advantageous that the energy storage device has an operating element on at least one longitudinal side, which engages with the energy storage device when it is housed in the energy storage device housing. By operating this operating element, the energy storage device can be disengaged from the instrument interface within the energy storage device housing. The operating element, for example, is used to adjust the locking mechanism of the energy storage device from a locked position holding the energy storage device at the instrument interface to a unlocked position, in which the energy storage device can be disengaged from the instrument interface, for example, by pulling along the insertion axis.

[0042] Advantageously, such operating elements are arranged accordingly on the opposite sides of the energy storage device, especially on the longitudinal side.

[0043] In a preferred embodiment, the electrical instrument is configured to form a suction instrument. In this case, the housing forms a suction instrument housing, and a suction turbine is arranged in the internal space of the suction instrument housing to generate a suction flow. The suction instrument housing has a suction inlet for introducing the suction flow and a dust collection space for collecting dust contained in the suction flow. A filter element is arranged between the dust collection space and the suction turbine inlet of the suction turbine to block dust in the dust collection space.

[0044] The insertion opening is advantageously located on the outer wall of the electrical instrument housing, especially on the outer wall of the suction instrument housing, extending between the bottom and top walls.

[0045] Preferably, the electrical instrument is designed to suction the housing of the instrument, which is configured to form a stacked housing extending along the stacking axis, wherein at least one stacking container can be stacked below and / or at least one stacking container can be stacked on top of it. The stacking container is, for example, another suction instrument. However, it is also possible for the stacking container to be, for example, a transport container for machine tools, particularly for machine tools that work by grinding and / or cutting, such as grinding machines or sawing machines. Dust or particles generated during the operation of the grinding or sawing machine can then be suctioned away by means of the suction instrument.

[0046] While it is feasible for the housings of electrical instruments to be loosely stacked onto stacking containers or stacking containers to be stacked onto the housings of electrical instruments, the stacking housings and other stacking containers can optionally be shaped-fitted into each other by means of shape-fitting profiles arranged at the stacking housings and stacking containers of the dust extractor, so that they are shaped-fitted into each other transversely to the stacking axis. For this purpose, for example, legs can be arranged at the stacking containers or stacking housings, and receptacles for the legs can be arranged at other stacking containers or stacking housings that support or house the legs, shaped-fitting into each other.

[0047] Advantageously, electrical instruments, especially suction instruments, are configured to have coupling devices for coupling their housings to stacked or under-stacked containers stacked along a stacking axis. The coupling devices of the electrical instruments are designed to work in conjunction with coupling devices of the stacked containers, thereby securing the housings and stacked containers transverse to and parallel to the stacking axis by means of the coupling devices. The coupling devices include rear gripping profiles advantageously arranged at the stacked containers and the stacked housings, transverse to the stacking axis, capable of being engaged and disengaged from each other. Furthermore, the coupling devices can include, for example, one or more locking elements, particularly at least one oscillating locking element and at least one locking protrusion, the oscillating locking element and the locking protrusion being capable of being engaged.

[0048] Advantageously, the electrical instrument, especially the suction instrument, includes a container cover that can be stacked on top of the housing as a stacking container along the stacking axis or can be stacked below the housing, wherein the container cover and the housing have coupling devices for fixingly coupling the housing to the container cover parallel to and transverse to the stacking axis, and wherein the container cover has a receiving space for at least one component of the electrical instrument or suction instrument, especially for suction hose.

[0049] The container cover preferably has a through opening that, when the container cover is arranged on the suction instrument housing, is aligned with the suction inlet of the suction instrument housing, wherein the through opening is provided and designed for inserting and / or inserting a suction hose.

[0050] The suction instrument advantageously includes a dust collection container, particularly designed as a box type, that is removable from the suction instrument housing and arranged within or providing a dust collection space. When the dust collection container is housed within the housing, it is positioned opposite the suction inlet. Thus, the suction flow entering through the suction inlet can flow into the dust collection space of the dust collection container.

[0051] The energy storage device configured for supplying electric current preferably includes an energy storage housing, in which components for providing electrical energy are arranged in the internal space.

[0052] At least one instrument interface is provided on the housing of the electrical instrument for detachable connection to the energy storage interface of the energy storage device, wherein the instrument interface and the energy storage interface include contact components for establishing an electrical connection through the interface, that is, the instrument interface and the energy storage interface.

[0053] The energy storage housing has, for example, longitudinal sidewalls extending between end sidewalls. The longitudinal sidewalls and end sidewalls are arranged, for example, between a bottom wall and an interface wall and together with said walls, define the internal space of the energy storage housing, the bottom wall and the interface wall being opposite each other.

[0054] A corresponding energy storage interface is arranged at the interface wall, and the energy storage can be connected to the corresponding instrument interface of the electrical instrument through the energy storage interface.

[0055] Preferably, no electrical contacts are provided on the bottom wall and / or longitudinal sidewalls and / or end sidewalls. Advantageously, the energy storage device has electrical contacts only at the interface wall.

[0056] In the state of being housed in the energy storage housing, the bottom walls of the energy storage housing are advantageously positioned opposite each other.

[0057] Advantageously, the bottom walls of the energy storage units housed in the energy storage unit extend parallel to each other and / or face each other with their flat sides opposite each other.

[0058] As mentioned, the energy storage housing advantageously has sidewalls that are opposite to each other. When the energy storage device is housed in the energy storage housing, the interface wall of the energy storage device preferably opposes one of the sidewalls of the energy storage housing. Furthermore, a connecting wall advantageously extends between the opposing sidewalls. When the energy storage device is housed in the energy storage housing, the longitudinal sidewall of the energy storage housing advantageously opposes the connecting wall.

[0059] The energy storage device advantageously includes a blower for generating a cooling airflow that flows into the energy storage housing through an energy storage inlet opening and out of the energy storage housing through an energy storage outlet opening. Attached Figure Description

[0060] Embodiments of the present invention will then be explained with reference to the accompanying drawings. Wherein:

[0061] Figure 1 An oblique perspective view of the suction instrument is shown from above, with the suction inlet of the instrument open.

[0062] Figure 2 Showing according to Figure 1 The approximate corresponding to the absorption instrument in Figure 1 The front part of detail D1 shows that the suction inlet is sealed by a sealing element.

[0063] Figure 3 Showing according to Figure 1 , 2 The rear perspective view of the absorption instrument.

[0064] Figure 4 The suction instrument, as shown in the previous figure, is presented from the front in a perspective oblique view, featuring an open suction instrument housing and a dust collection container for the removed dust.

[0065] Figure 5Showing according to Figure 4 The components include a dust collection container housed within the suction instrument housing.

[0066] Figure 6 The suction instrument with a container cover is shown from the front in a perspective view at an angle, according to the previous diagram.

[0067] Figure 7 Showing according to Figure 3 The rear view of the imaging instrument shows the removed energy storage device, approximately corresponding to the... Figure 3 Local D2 in

[0068] Figure 8 However, the suction instrument is shown in different tilted views. Figure 7 The part shown in the image,

[0069] Figure 9 The previous view shows an absorption instrument with an energy storage device. Figure 7 and 8 The part shown in the image,

[0070] Figure 10 Showing the corresponding Figure 9 The view, however, has only one energy storage.

[0071] Figure 11 Shown by according to Figure 10 The suction instrument approximately along the Figure 10 The cutting plane of the section line AA in the middle.

[0072] Figure 12 Shown by according to Figure 10 The suction instrument approximately along the Figure 10 The cutting plane of the section line BB in the middle.

[0073] Figure 13 An oblique perspective view showing the energy storage of the harvesting instrument.

[0074] Figure 14 The front view of the suction instrument is shown from above, roughly corresponding to the position in... Figure 1 Local D1 in, where, as in Figure 1 In that case, the intake is open.

[0075] Figure 15 Showing the corresponding Figure 14 The view shows that the intake inlet is closed by a sealing element.

[0076] Figure 16 Showing through Figure 14 The view approximately along the edge of Figure 14 The cutting plane of the section line CC in the middle.

[0077] Figure 17 Shown by according to Figure 15 The view approximately along the edge of Figure 15 The cutting plane of the section line DD in the middle.

[0078] Figure 18 Showing a front view from top to the open lower part of the suction instrument according to the previous figure,

[0079] Figure 19 It shows approximately along the section line EE through according to Figure 18 The lower section of the suction instrument.

[0080] Figure 20 It shows approximately along the path of the suction instrument. Figure 18 The cutting plane of the section line FF in the middle.

[0081] Figure 21 It shows approximately along the path of the suction instrument. Figure 18 The cutting plane of the section line GG in the middle.

[0082] Figure 22 It shows approximately along the path of the suction instrument. Figure 18 The cutting plane of the section line HH in the middle.

[0083] Figure 23 Shown by according to Figures 18 to 22 The section of the suction instrument, approximately along the... Figure 20 Cutting line II in the middle,

[0084] Figure 24 The portable suction device shown in the preceding figure is illustrated.

[0085] Figure 25 Shown from Figure 24 Details D3, however, include the removal of the carrying mechanism and the carrying attachment mechanism.

[0086] Figure 26 A perspective oblique view shows a suction device with a container cover, as shown in the preceding figure, wherein a portable device is schematically attached to the container cover.

[0087] Figure 27 Shown from Figure 26 Detail D4 shows the portable fixing mechanism in the detached position.

[0088] Figure 28 The characteristic lines of the volumetric flow through the suction turbine of the suction instrument are shown, and

[0089] Figure 29The motor feature line of the drive motor that draws in the turbine is shown. Detailed Implementation

[0090] The suction instrument 10 has a suction instrument housing 20, in which a suction turbine 11 of the suction instrument 10 is housed. A suction flow S is generated by the suction turbine 11, which flows into the suction instrument housing 20 through a suction inlet 12. A suction hose SL is connected to the suction inlet 12.

[0091] The suction stream S flows through the dust collection space 21 of the suction instrument housing 20, where particles, such as dust, contained in the suction stream S are collected. A filter element 13, such as a plate filter, is arranged between the suction turbine 11 and the dust collection space 21, thereby trapping particles contained in the suction stream S within the dust collection space 21. Downstream of the filter element 13, the suction stream S flows through the suction turbine 11 and exits from the suction instrument housing 20 through the air outlet 22.

[0092] The suction instrument 10 is, for example, a portable electrical instrument that can be easily moved to its place of use. The suction instrument housing 20 is, for example, box-shaped and compact. However, the features and design schemes explained below can also be applied to stationary electrical instruments without any problems.

[0093] The suction instrument 10 can be placed on the base with its lower side 14. The suction inlet 12 is arranged on the upper side 15 of the suction instrument 10 opposite to the lower side 14. Between the lower side 14 and the upper side 15, the suction instrument 10 or its suction instrument housing 20 has longer longitudinal sides 16 and 17, wherein the longitudinal side 16 forms, for example, the front side and the longitudinal side 17 forms the back side of the suction instrument 10.

[0094] The dust collection space 21 and the suction turbine section 24 are provided in the internal space 23 of the suction instrument housing 20, and the suction turbine 11 is housed therein.

[0095] The suction instrument housing 20 includes a bottom wall 25 from which peripheral walls protrude, namely longitudinal sidewalls 26 and 27 at the front and rear of the longitudinal sides 16 and 17, and longitudinal sidewalls 28 and 29 at the longitudinal sides 18 and 19 extending between the longitudinal sidewalls 26 and 27, the longitudinal sidewalls generally surrounding the housing interior space 23.

[0096] An intermediate wall 30 is arranged between the suction turbine section 24 and the dust collection space 21, which divides the internal space 23 of the housing into the suction turbine section 24 and the dust collection space 21.

[0097] An inlet 32 ​​for drawing in a flow S is provided at the intermediate wall 30. The flow S can flow out of the dust collection space 21 through the inlet in a direction toward the suction turbine section 24. The suction turbine section has a suction turbine housing space 31 in which the suction turbine 11 is housed. The intermediate wall 30 can also be referred to as a partition wall, which separates the suction turbine section 24 from the dust collection space 21, except for the inlet 32 ​​and other small outlet openings 98 and 108 to be described.

[0098] The suction flow S exits from the suction turbine housing space 31 through the air outlet 22. The suction turbine section 24 and, in particular, the suction turbine housing space 31 are enclosed by the cover wall 34, while the dust collection space 21 is open, for example, above, on its side opposite the bottom wall 25 in the use position.

[0099] Air outlet 22 may be located, for example, in one of the peripheral walls of the suction instrument housing 20, such as in the front longitudinal side wall 26, wherein, however, the longitudinal side wall 27 or 28 may also have an air outlet. In any case, it is advantageous that air outlet 22 is not located in the bottom wall 25 and / or not located in the cover wall 34, wherein, both are feasible in principle.

[0100] The dust collection space 21 has a receiving rack 35 for the dust collection container 36. The dust collection container 36 is used to collect dirt. A filter bag can also be arranged in the dust collection container 36 or the dust collection space 21.

[0101] The dust collection container 36 is designed, for example, as a box or module that can be removed from the suction instrument housing 20 so as to, for example, empty the dust from the dust collection container 36.

[0102] The dust collection container 36 has a bottom wall 37, side walls 38 and 39 projecting from the bottom wall, and a filter housing 40 for a filter element 13, which restricts the internal space 43 of the dust collection container 36. The filter element 13 is opposite to the side wall 39. The side wall 38 extends between the filter housing 40 and the side wall 39. The side walls 38, 39, and the wall above the filter housing 40 restrict a receiving opening 41, which is opposite to the bottom wall 37. Therefore, the dust collection container 36 is open towards its upper side.

[0103] The handle 42, in the form of a handle, is pivotally hinged to the side wall 38 via a pivot support 42A, allowing the dust collection container 36 to be gripped. When the handle 42 is open, it can be gripped by the operator. When the dust collection container 36 is inserted into the receiving holder 35, the handle 42 can swing in the direction toward the filter receiving portion 40, so that the handle 42 does not protrude significantly before the receiving opening 41.

[0104] Advantageously, a handle 42, which swings in the direction toward the filter housing 40, locks the dust collection container 36 in the housing 35. Here, the filter element 13 is also suitably tensioned in the direction toward the intermediate wall 30, thereby establishing a flow connection between the internal space 43 of the dust collection container 36 and the flow opening 32 and thus the suction turbine 11 through the filter element 13.

[0105] The suction turbine section 24 and the dust collection space 21 form part of the lower housing 44 of the suction instrument housing 20. The lower housing 44 can be closed by the cover 45. In the open state of the suction instrument housing 20 or in the open position OD of the cover 45, the receiver 35 is open so that the dust collection container 36 can be inserted into or removed from the receiver 35.

[0106] The cover 45 has a cover body, such as a top wall 46, which includes a suction turbine section 47 and a closed section 48. The suction turbine section 47 is associated with the suction turbine portion 24 and is opposite to the cover wall 34 in the closed state of the cover 45.

[0107] The enclosed section 48 has a sealing portion 49, by means of which the internal space 43 of the dust collection container 36 is sealed. When the cover 45 is closed, the sealing portion 49 is opposed to the side walls 38 and 39 and the side wall of the filter housing 40 at its end, and in particular abuts against the outer periphery of the side walls 38, 39 and the filter housing 40, thereby sealing the dust collection container 36 in a sealed manner.

[0108] The cover 45 can be locked in the closed position SD of the cover 45 by means of the locking mechanism 50 and the lower part of the housing 44.

[0109] The locking mechanism 50 includes a locking element 51 pivotally supported on the cover 45, which is engaged with a locking element 52 on the lower part 44 of the housing in the locked position and pivotable to a disengaged position in which it is disengaged from the locking element 52. That is, the locking element 51 is designed as a pivoting locking element. The locking element 52 is located on the longitudinal sidewall 26 of the lower part 44 of the housing. The locking element 52 is designed, for example, as a locking protrusion. Corresponding to the frontal arrangement of the locking element 52, the locking element 51 is located on the front side of the longitudinal side 16 of the cover 45, which is associated with the suction instrument 10.

[0110] The cover 45 is pivotally hinged to the lower part 44 of the housing by means of a pivot support 53 and can pivot between its open position OD and its closed position SD. The pivot support 53 is arranged, for example, on the longitudinal sidewall 27, especially on the upper end or narrow side thereon.

[0111] Optionally, a band 53A exists between the cover 45 and the lower housing 44 to limit the swing path of the cover 45 in the direction toward its open position OD. The band is fixed, for example, to the wall surface of the cover wall 34 and the closed section 48 opposite to the cover wall.

[0112] Support legs 54 and 55 are arranged at the lower side 14 of the suction instrument housing 20, by means of which the suction instrument housing 20 can be lowered onto the base, but can also be brought into engagement with another suction instrument housing 20 of the same type of suction instrument 10 in conjunction with the receiving portions 56 and 57. Support legs 54 and receiving portions 56 are arranged near the rear longitudinal sidewall 27. Receiving portions 56 and support legs 54 have rear gripping profiles 56A and 54A, which are transverse to the stacking direction or stacking axis SR and can be brought into engagement with each other and disengaged, and when engaged with each other, they tensilely connect the suction instrument housings 20 stacked on top of each other along the stacking axis SR. Rear gripping profiles 56A and 54A form part of the coupling device 58. Furthermore, the coupling device 58 for coupling the container or suction instrument housing 20 stacked on top of each other includes a locking element 59, which is arranged in the same manner as locking element 52 at the lower part 44 of the housing, but not near the free end side of the longitudinal sidewall 26, but near the bottom wall 25. Additionally, locking element 51 also forms part of the coupling device 58. When the locking element 51 of the corresponding lower container or suction instrument housing 20 is brought into engagement with locking element 59 by swinging the locking element 51, the container or suction instrument housing 20 is also coupled to each other in the region of the front or forward longitudinal side 16, and thus, a tensile connection of the suction instrument housing 20 along the stacking axis SR or along the stacking direction is established.

[0113] The intake inlet 12 can be closed by the closing element 60.

[0114] The closure element 60 has a closure body 61 that can be inserted into the suction inlet 12. That is, the closure body 61 is designed as a plug-in protrusion or plug-in body.

[0115] The sealing element 60 is movably supported on the suction instrument housing 20 between a closed position V and a released position FS by means of a support member 62, wherein the sealing element 60 closes the suction inlet 12 in the closed position V and releases it in the released position FS. In the released position FS, the suction inlet 12 is free or open for the purpose of arranging, in particular for inserting the suction hose SL.

[0116] The support member 62 is, for example, a swing support member, by means of which the closing element 60 can be swing-supported about the swing axis SC. The swing axis SC is, for example, orthogonal to the upper surface of the upper side 45A of the cover member 44 or orthogonal to the upper surface of the suction instrument housing 20.

[0117] The support member 62 includes a support protrusion 63 at the closure element 60, which engages in a support receiving portion 64 at the upper side 15 of the cover member 44. The support receiving portion 64 is designed, for example, as a through opening at the cover body or top wall 46. The support protrusion 63 penetrates the through opening. From the support protrusion 63, particularly at its free end region, is a rear gripping profile 63A, such as a flange-shaped locking protrusion or the like, which grips the cover body or top wall 46 at the lower side of the cover member 45 opposite to the upper side 15, thereby holding the closure element 60 in a disengaged but swingable manner at the cover member 45 or the suction instrument housing 20.

[0118] A closure 61 and a support protrusion 63 are arranged at the arm 65 of the closure element 60. The arm 65 extends along the longitudinal axis L60 between the support protrusion 63 and the closure 61, which are arranged at opposite longitudinal end regions of the arm 65.

[0119] The arm body 65 is preferably plate-shaped and / or designed as a splice.

[0120] The cover 45 and the suction instrument housing 20 therefrom have a closure element receiving portion 67 for closing the element 60. The closure element receiving portion 67 is designed as a deepening at the upper side 45A of the cover 45. The upper side 66 of the closure element 60, which is away from the upper side 45A of the cover 45, does not protrude before or after the upper side 45A of the cover 45; however, this is not shown in this embodiment, but it presents an option. Thus, the upper side 45A of the cover 45 is used for stacking other containers or suction instrument housings 20 or container covers 200, which will be explained later, without the closure element 60 presenting an obstructing profile.

[0121] The closed element receiving portion 67 is, for example, approximately triangular in a top view, wherein a support 62 is arranged in one corner region of the triangle and an intake inlet 12 and a receiving portion 68 are arranged in the other corner region.

[0122] The receiving portion 68 is also designed as a plug-in receiving portion and has a peripheral wall 69 and a bottom 70.

[0123] The suction inlet 12 is designed as an insertion receiving part with a peripheral wall 71 into which a shape-fitting body 61 or a suction hose SL can optionally be inserted.

[0124] The closure 61 protrudes forward of the arm body 65 in the form of a closed protrusion and has a peripheral wall 72 and a bottom 73. A gripping section 74 protrudes from the bottom 70 into an interior space defined by the peripheral wall 72, the gripping section forming a handle 74A for gripping the closure element 60.

[0125] The closure 61, preferably the closure element 60, is made entirely of a flexible material, which on the one hand achieves a clamping or sealing fit in the suction inlet 12 or the receiving portion 68, and on the other hand, also facilitates manipulation. This will become clearer later:

[0126] For example, the arm 65 is flexible, so that the closure 61 can move out from the suction inlet 12 or the receiving portion 68 when the arm 65 is bent.

[0127] Alternatively or supplementally, a corresponding movable or swingable support at the support member 62 may also be feasible so that the closing element 60 not only swings back and forth between the supply receiving portion 68 and the suction inlet 12 about the swing axis SC, but also swings laterally to the swing axis SC to disengage from or engage with the supply receiving portion 68 and the suction inlet 12.

[0128] For example, the closing element 60 can be movably supported in the support receiving portion 65 about a swing axis SQ that runs transversely to the swing axis SC, so that the closing element 60 can move away from the upper side 45A to disengage from the suction inlet 12 or the supply receiving portion 68. In this regard, the support protrusion 63 can, for example, have a significantly smaller diameter than the support receiving portion 64 and thus have a movement clearance transversely to the swing axis SC in the support receiving portion 64.

[0129] The gripping section 74 includes a base wall 75 from which a side wall 76 extends. The base wall 75 and the side wall 76 are configured in an approximately U-shaped or V-shaped cross-section. The side wall 76 extends between the base wall 75 and the bottom 73 of the enclosure 61. The base wall 75 and the bottom 70 are, for example, parallel to each other. The side wall 76 is opposite to the peripheral wall 72 of the enclosure 61. Advantageously, the side wall 76 is long enough that the gripping section 74 extends to the arm 65. For example, the base wall 75 is approximately aligned with the upper side 45A of the cover 45. This facilitates gripping of the handle 74A.

[0130] A sealing portion 77, for example in the shape of a rib or sealing protrusion 77A, is provided at the outer periphery of the peripheral wall 72 of the closure 61. When the closure 61 is engaged into the supply receiving portion 68 or the suction inlet 12, the sealing portion abuts against the peripheral wall 71 or 72 in a sealing or clamping fit. Thus, the closure 61 is reliably held in the supply receiving portion 68 or the suction inlet 12 regardless of the circumstances. The sealing portion 77 is particularly responsible for sealing the suction inlet 12 when the suction hose SL is not inserted, thereby preventing dust or similar contaminants from reaching the surrounding environment from the dust collection container 36 or the dust collection space 21. Nevertheless, it is easily achievable for the operator to manipulate the closure element 60 from the supply receiving portion 68 into the suction inlet 12 or vice versa.

[0131] For example, insertion into the receiving section 68 or the suction inlet 12 is achieved by applying pressure to the base wall 75 of the gripping section 74 via a DV operation.

[0132] However, despite the clamping engagement of the sealing portion 77 at the peripheral walls 71 or 72, it is still possible to easily facilitate the operation from the suction inlet 12 or the supply receiving portion 68. That is, the gripping section 74 can be gripped in a clamp-like gripping motion and pulled out from the suction inlet 12 or the supply receiving portion 68 in the opposite direction of the pressure operation DV.

[0133] For example, the sidewalls 76 are parallel to each other or, as in this embodiment, inclined at a small angle to each other, so that when the operator grips the gripping section 74, the two sidewalls 76 are clamped together and can be moved toward each other, for example by applying pressure DO. Thus, the section of the peripheral wall 72 and the sealing portion 77 is manipulated away from the peripheral wall 71 or 72, thereby canceling or at least weakening the clamping engagement of the closure 61 at the receiving portion 68 or the suction inlet 12. Furthermore, it is advantageous that the sidewalls 76 yield under pressure when the operator acts upon them and form gripping grooves, further simplifying operation. In this regard, it should be mentioned that rib structures or similar other gripping structures can obviously be provided at the gripping section or handle of the closure element to simplify operation.

[0134] The suction instrument 10 advantageously has a container cover 200 or is compatible with a container cover 200. The container cover 200 preferably has the same outline as the suction instrument housing 20 at its outer periphery. The container cover 200 can be stacked on the suction instrument 10, i.e., its suction instrument housing 200, and connected to it by means of the coupling device 58 already explained.

[0135] For example, container cover 200 includes a suction instrument housing 220 with a bottom wall 225, and longitudinal side walls 226, 227, 228, and 229 extending from the bottom wall, the longitudinal side walls generally restricting a receiving space 223 of container cover 200. The receiving space 223 is adapted to accommodate a suction hose SL.

[0136] From the bottom wall 225, a handle 224 protrudes into the receiving space 223. The handle 224 is designed as a handle so that the container cover 200, fixed to the suction instrument housing 20, functions as a pull handle for carrying the stack 9, which includes the suction instrument 10 and the container cover 200. Here, the suction instrument housing 20 forms a stack housing 20A. The container cover 200 forms a stack container 200A.

[0137] Meanwhile, the suction hose SL can be wound around the handle 224, thus serving as a winding aid.

[0138] A passage 222 is provided at the bottom wall 225 for suction hose SL. When the container cover 200 is fixed at the suction instrument 10, the suction hose is aligned with the suction inlet 12. In addition, a lateral passage 221 for suction hose SL is provided at the longitudinal side wall 28.

[0139] At the longitudinal sidewall 226, locking elements 251 and 259 are provided as coupling devices 58, having the same construction and / or compatibility with locking elements 51 and 59. Thus, for example, locking element 51 of the suction instrument 10 can be brought into engagement with locking element 259 to form a stack 9 consisting of the suction instrument 10 and the stacked container cover 200.

[0140] Not visible in the accompanying drawings are the legs corresponding to the feet 54 and 55 on the side of the bottom wall 225 opposite to the receiving space 223, which can be brought into engagement with the receiving portions 56 and 57 of the suction instrument housing 20, thereby enabling, in combination with the locking elements 51 and 259 of the coupling device 58 engaged with each other, to cause the container cover 200 to be held tensilely at the suction instrument 10 in the direction of the stacking axis SR or in the stacking direction.

[0141] Unsurprisingly, the coupling device 58 also facilitates a fixed connection between the container cover 200 and the suction instrument housing 20, transverse to the stack axis SR.

[0142] Additional containers, such as those for transport vehicles, can be stacked on or below the stack 9. These containers can be coupled to the container cover 200 or the suction instrument housing 20 via a coupling device compatible with coupling device 58. Thus, the container cover 200 can also be, for example, arranged below the suction instrument housing 20 and stacked therewith via coupling device 58. Furthermore, additional container covers 200 (not shown in the figures) or additional suction instruments 10 (not shown) can, for example, be stacked on top of the stack 9. Figure 6 It is located on the upper container cover 200 and is stacked and coupled thereto by means of a coupling device compatible with coupling device 58.

[0143] Now, in principle, it would be feasible to design the absorption device 10 as an absorption device capable of operating by supplying current to the power grid. However, the absorption device 10 is not only extremely compact, but also flexible in its application by having a current supply mechanism 80, to which an energy storage device 170, such as a so-called battery pack, can be connected.

[0144] For the purpose of supplying current, for example, there are two energy storage devices of the same type 170, which are subsequently referred to as energy storage devices 170A and 170B.

[0145] The current supply mechanism 80 includes an energy storage housing 81 in the region of the suction turbine section 24. The energy storage housing 81 extends almost through the entire distance between the longitudinal sidewall 28 and the intermediate wall 30, so that two energy storage devices 170 can be arranged in the energy storage housing 81.

[0146] The energy storage housing 81 includes an insertion opening 82 through which the energy storage device 170 can be inserted. The insertion opening 82 is limited by side walls 83 and 84, which run particularly parallel to the side walls 28 and the intermediate wall 30 of the suction instrument housing 20. Between side walls 83 and 84 extend a side wall or connecting wall 85 closer to the cover 45 and a side wall or thick wall 86 closer to or formed by the bottom wall 25. The energy storage housing 81 is limited by a bottom wall 87, which is opposite the insertion opening 82.

[0147] Instrument interfaces 90A and 90B, hereinafter referred to as interface 90, are arranged at side walls 83 and 84. The energy storage device 170 can be connected to the interface and has an energy storage interface 190 that matches the interface 90.

[0148] For example, interfaces 90, 190 include complementary longitudinal guide profiles 91, 191 that can be inserted into each other along the mating axis SA. For example, longitudinal guide profiles 91, 191 include longitudinal grooves and longitudinal protrusions that can engage with each other.

[0149] The rear gripping profiles 91A and 191A of the interfaces 90 and 191 extend laterally to the corresponding plug-in axes SA, by means of which the energy storage 170 can be brought laterally to the corresponding plug-in axes SA into a shape-matching engagement with the instrument interface 90.

[0150] With the help of the rear gripping contours 91A, 191A and the longitudinal guide contours 91, 191, the interfaces 90, 190 can be shaped to connect with each other in addition to the slidable movement along the corresponding plug axis SA.

[0151] Furthermore, interfaces 90 and 190 include locking mechanisms 92 and 192 to lock the energy storage device 170 at instrument interface 90. Locking mechanism 92 is designed, for example, as a locking receptacle 93, into which locking protrusion 193 of locking mechanism 192 can engage securely, thereby holding the energy storage device 170 at interface 90 with resistance to displacement about the insertion axis SA. Locking protrusion 193 is, for example, spring-loaded or spring-yielded in the direction toward its locking position, in which it engages with locking receptacle 93 and can be disengaged from locking receptacle 93, contrary to the aforementioned spring loading.

[0152] Interfaces 90 and 190 include contact components 94 and 194 for establishing an electrical connection between the energy storage device 170 and the extraction instrument 10. Contact components 94 and 194 include, for example, energy supply contacts 95 and 195 with different polarities, such as positive potential and ground, and data contacts 96 and 196 for data transfer between the extraction instrument 10 and the corresponding energy storage device 170. This data transfer is configured, for example, as digital bus data transfer, particularly by means of an I2C bus (I2C-Bus).

[0153] The energy storage devices 170 are advantageously constructed identically. Each energy storage device 171 has an energy storage housing 171, which includes a longitudinal sidewall 172 and end sidewalls 173, 174 extending therebetween on its longitudinal side 172A. A bottom wall 175 extends between the sidewalls 172-174, and an interface wall 176 extends opposite to it, where an energy storage interface 190 is arranged. The interface wall 176 can have a stepped shape, such that, for example, the data contact 196 has a larger distance from the bottom wall 175 compared to the energy supply contact 195.

[0154] Furthermore, the energy supply contact 195 and the data contact 196 are arranged sequentially about the insertion axis SA. For example, the data contact 196 is arranged forward (i.e., closer to the end sidewall 173) along the insertion axis SA in the insertion direction, while the supply contact 195 is arranged rearward (i.e., at the end sidewall 174) along the insertion axis SA in the insertion direction. The energy storage housing 171 has an internal space 177 in which battery cells 178 are arranged in a protected manner against the influence of the surrounding environment. However, the battery cells 178 generate heat, for example, during charging or discharging (i.e., when the absorption instrument 10 is operating with the energy storage 170). However, the battery cells 178 are actively cooled in the energy storage 170, for which each energy storage 170 has a blower 179. The blower 179 generates a cooling airflow KL, which flows into the internal space 177 through the energy storage inlet opening 180 and out through it through the energy storage outlet opening 181. For example, the energy storage inlet opening 180 is arranged at the bottom wall 175, while the energy storage outlet opening 181 is arranged at the interface wall 176. Furthermore, the energy storage inlet opening 180 and the energy storage outlet opening 181 are arranged at the opposing longitudinal end regions of the energy storage 170, i.e., near the end sidewalls 174 and 173, so that the cooling airflow KL (e.g., cooling airflow KLA in energy storage 170 and cooling airflow KLB in energy storage 170B) can be said to flow from back to front through the respective energy storage 170 with respect to the insertion direction or insertion axis SA.

[0155] The instrument interface 90 is arranged on opposite sides of the energy storage housing 81, specifically on side walls 83 and 84. Correspondingly, the energy storage 170 is housed in the energy storage housing 81 with opposite bottom walls 175.

[0156] To operate the locking mechanism 192, an operating element 197 is disposed on the longitudinal sidewall 172 of the energy storage housing 171. That is, the operator can grip the energy storage housing 171, either laterally or in a clamp-like manner, to simultaneously act on the two operating elements 197 disposed on the opposing longitudinal sidewalls 172, so as to disengage the locking protrusion 193 from the locking receiving portion 93, thereby enabling the removal of the corresponding energy storage device 170 from the instrument interface 90.

[0157] The receiving portion 81 allows for convenient manipulation because there are operating spaces 88 and 89 between the connecting walls 85 and 86 and the energy storage device 170 inserted into the energy storage receiving portion 81. An operator can grasp the operating element 197, which may have a pressure surface or a touch surface, within these spaces to manipulate the operating element. The operating spaces 88 and 89 can be considered unified or continuous operating spaces because there are no separating components between the energy storage devices 170 housed in the energy storage receiving portion 81. That is, when, for example, the energy storage devices 170 are housed in the energy storage receiving portion 81 with their respective energy storage interfaces 190 facing each other, an intermediate wall must exist in the energy storage receiving portion 81, where the instrument interface 90 is arranged.

[0158] Furthermore, due to the large size of the operating spaces 88 and 89, the operator can grasp the energy storage 170, for example, at its longitudinal sidewall 172, to remove it from the energy storage housing 81. However, this operation is also facilitated even when the energy storage 170 is inserted into the energy storage housing 81, because even in this case, the operator can grasp the longitudinal sidewall 172 to insert the corresponding energy storage 170 into its associated instrument interface 90.

[0159] Advantageously, the sidewalls 83 and 84 are spaced apart from each other such that there is a gap between the energy storage 170 inserted into the instrument interface 90 and its bottom wall 175, so that the cooling airflow KL can flow into the intermediate space between the bottom walls 175.

[0160] Outlet openings 97 and 98 are used to divert the cooling airflow KL from the energy storage unit 170 located at the instrument interface 90. These outlet openings are arranged near the instrument interface 90 and thus near the energy storage outlet opening 181 of the energy storage unit 170 at the side walls 83 and 84 of the energy storage unit 81. Because of their arrangement within the energy storage unit 81, outlet openings 97 and 98 are hereinafter referred to as storage unit outlet openings and are located near the bottom wall 87, thus accumulating little or no heat within the energy storage unit 81.

[0161] The outlet 98 of the receiving section directly leads into the intermediate space between the intermediate wall 30 and the filter element 13, thereby forming a cooling air passage 99 between the intermediate wall 30 and the filter element 13. This cooling air passage is guided from the outlet 98 of the receiving section to the through-flow opening 32 at the intermediate wall 30. Thus, the cooling airflow KLA from the energy storage device 170 arranged at the side wall 84 can flow out from the outlet 98 of the receiving section and be drawn away by the suction turbine 11 through the cooling air passage 99. Here, the suction turbine 11 can even enhance the cooling airflow KLA, which is schematically indicated by arrows.

[0162] The energy storage device 170B can be cooled by a cooling airflow KLB, which flows out of the energy storage device housing 81 through the housing outlet opening 97. The housing outlet opening 97 forms a channel inflow opening 97A for the cooling air passage 100.

[0163] It is feasible without any problem to connect the outlet 97 of the receiving section to the through-flow opening 32 at the intermediate wall 30 or, in any case, to the suction turbine inflow opening 11A of the suction turbine 11 by means of, for example, a hose connection or similar connection, so that the cooling airflow KLB flows directly to or is drawn from the suction turbine 11.

[0164] However, an alternative structure is currently chosen in which the cooling air passage 100 is not directly led to the flow opening 32, but instead leads to other cooling air passages 101, which are used to cool other components of the suction instrument 10, such as the current-carrying mechanism 140 and also for continuous cooling of the suction turbine 11.

[0165] The suction turbine 11 is, for example, a so-called flow turbine or a turbine that is cooled or capable of being cooled by the suction flow delivered therefrom.

[0166] The continuous cooling of the intake turbine 11 is especially important when it cannot draw in enough air on the inlet side under other circumstances. This can occur, for example, when the intake inlet 12 is blocked or clogged, when the filter element 13 is no longer able to pass through, when the dust collection space 21 is full, or in similar situations.

[0167] The suction turbine 11 is a so-called flow turbine. The suction turbine 11 has a suction turbine inflow opening 11A on its side facing the flow through opening 32 and at least one, preferably multiple suction turbine outflow openings 11B on its side away from the flow through opening 32.

[0168] Advantageously, the sealing part 11E is disposed between one side of the intermediate wall 30 and the other side of the suction turbine 11 facing the intermediate wall 30 and having a suction turbine inflow opening 11A, so that it is sealed against the intermediate wall 30 and the suction flow S can flow through the flow opening 32, but does not flow into the suction turbine receiving space 31 in which the suction turbine 11 is arranged.

[0169] The suction turbine housing space 31 is limited by a sidewall 31A in the region of the suction turbine outlet opening 11B. Between the sidewall 31A and the end side of the suction turbine 11 (where the suction turbine outlet opening 11B is arranged) a suction turbine support element 11F is advantageously arranged. The suction turbine support element can be elastically yielding, so that the suction turbine support element 11F and the seal 11E support the suction turbine 11 in a vibration-damping manner within the suction instrument housing 20.

[0170] The suction turbine 11 has a fan 11C, shown schematically, and an electric drive motor 11D for driving the fan 11C. The drive motor 11D is cooled by the suction flow S during normal operation of the suction instrument 10 (that is, when the suction flow S is flowing).

[0171] To supply current to the suction turbine 11, and particularly the drive motor 11D, the suction instrument 10 has a current-carrying mechanism 140. The current-carrying mechanism 140 includes, for example, one or more power electronic semiconductor elements 141, such as thyristors, metal-oxide-semiconductor field-effect transistors, or the like. The semiconductor elements 141 generate heat during operation, i.e., when current is supplied to the suction turbine 11.

[0172] The current-carrying mechanism 140 is disposed on the circuit board 104, sandwiched between the longitudinal sidewall 28 and the sidewall 83 of the energy storage housing 81 of the current supply mechanism 80. The circuit board 104 also extends partially into the intermediate space between the sidewalls 28 of the sidewall 31A. The current-carrying mechanism 140 is connected to the instrument interfaces 90A, 90B, and particularly to the energy supply contact 95, via line 143. Line 144 connects the current-carrying mechanism 140 to the suction turbine 11.

[0173] Furthermore, the suction instrument 10 advantageously includes a control unit 150. The control unit 150 includes, for example, a processor 151 and a memory 152, in which at least one control program 153 is provided for operating, for example, the suction turbine 11.

[0174] The operator can control the suction instrument 10 by means of the operating element 155 arranged on the operating wall 156. The operating wall 156 is arranged on the side wall 28.

[0175] The control unit 150 is electrically connected to the operating element 155. The operating element 155 allows the suction instrument 10 to be switched on or off, for example. Furthermore, the power of the suction turbine 11 can be adjusted using the operating element 155. Advantageously, an indicator 157 is provided at the operating wall 156, for example, to indicate the status of the suction instrument 11.

[0176] The control unit 150 also generates heat, the heat of which is advantageously eliminated in the absorption instrument 11 as will become clear later.

[0177] The cooling air passage 101 is flowably connected to the outlet opening 97 of the receiving section. Thus, air can flow into the cooling air passage 101 through the outlet opening 97 of the receiving section, for example, cooling airflow KLB. Cooling airflow KLB, however, has already been heated by the cooling of the energy storage device 170B.

[0178] Ambient air (i.e., generally cooler air) can flow as cooling airflow KLC into cooling air passage 101 through passage inlet opening 102. Passage inlet opening 102 is arranged, for example, near the bottom wall 25 in the region of the longitudinal side wall 28 facing the bottom wall 25. Advantageously, a protective fence 102A is arranged at passage inlet opening 102.

[0179] Cooling airflow KLC flows through the channel into the opening 102 and into the channel section 103A of the cooling air channel 101, which runs between the circuit board 142 and the sidewall 31A. Therefore, the circuit board 142 is either followed by the cooling airflow KLC or the cooling airflow KLC flows through the circuit board 142. Here, the channel section 103A is chosen such that the cooling airflow KLC flows substantially through the current-carrying mechanism 140, that is, particularly through the semiconductor element 141, which becomes particularly hot during the operation of the instrument 11. However, the cooling airflow KLC effectively counteracts this heat generation and, in the worst case, the heating.

[0180] At its end away from the channel inflow opening 102, the channel section 103A leads into the hose receptacle 104, in which the hose 110 is housed, and thus the pipe body 110A for guiding cooling air is housed.

[0181] The hose receiving portion 104 has, for example, a plug receiving portion 105 into which the hose 110 is inserted, and an air guiding surface 106 at the wall 107.

[0182] The cooling airflow KLC flowing out from the channel section 103A is guided by the air guide surface 106 to the inlet opening 111 of the hose 110. There is a gap between the inlet opening 111 and the air guide surface 106 or the wall 107, so that the cooling airflow KLC can flow into the inlet opening 111 without obstruction.

[0183] The design and / or cross-section of the insertion receiving portion 105 ensures that the hose 110 is compressed only to the extent that it is securely clamped within the insertion receiving portion 105, but not compressed to the point that its flow cross-section is no longer sufficient to allow the cooling airflow KLC to pass through. Advantageously, the insertion receiving portion 105 is opposite to the insertion stop 105A, at which the outer casing of the cooling air hose 110 is stopped when inserted into the insertion receiving portion 105. The insertion stop 105A has a gap relative to the air guide surface 106. Due to the insertion stop 105A, the inlet opening 111 cannot be closed by the air guide surface 106.

[0184] The cooling airflow KLB can also flow through the circuit board 142 and / or into the inlet opening 111 of the cooling air hose 110 in the intermediate space between the circuit board 142 and the cover wall 34, so that the cooling air hose 110 guides not only the cooling airflow KLB but also the cooling airflow KLC in a direction toward the channel outlet opening 108. The cooling air hose 110 thus provides a common channel section 103B for the cooling airflows KLB and KLC.

[0185] The cooling air hose 110 has a hose section 112 that guides the cooling airflow KLC and / or cooling airflow KLB through the suction turbine housing 31 to the channel outlet 108, which is located at the intermediate wall 30 and leads to the intermediate space between the intermediate wall 30 and the filter element 13. Here, the cooling airflow KLC and / or cooling airflow KLB can flow in a direction toward the through-flow opening 32 so as to be drawn away by the suction turbine 11.

[0186] The hose section 112 has an arcuate orientation. The end region 113 of the hose section 112 is held in a receiving portion 109 in the region of the channel outlet opening 108, the receiving portion being designed, for example, as a plug-in receiving portion.

[0187] While the cooling airflows KLA and KLB primarily cool the energy storage units 170A and 170B, they also cool the intake turbine 11.

[0188] In addition, the cooling airflow KLC cools the current-carrying mechanism 140, but also cools the suction turbine 11.

[0189] Because a smaller cooling airflow is required to cool energy storage devices 170A and 170B, cooling air channels 99 and 100 advantageously have a smaller flow cross-section than cooling air channel 101. That is, cooling air channel 101 cools power electronic devices, such as semiconductor element 141. This measure is advantageous because sufficient cooling airflow passes through cooling air channel 101 and, arguably, does not flow through it through cooling air channels 99 and / or 100.

[0190] The inflow openings 97A, 98A, and 102 remain continuously open. As a result, the cooling airflows KLA, KLB, and KLC can continuously and effectively draw cooling from the turbine 11.

[0191] Furthermore, a sensor 154 is arranged at the suction turbine 11, and its sensor signal is evaluated by the control unit 150. The sensor 154 includes, for example, a temperature sensor and / or a pressure sensor and / or a flow sensor. By continuously cooling the suction turbine 11 with the aid of cooling airflows KLA, KLB, and KLC, sufficient flow pressure exists at the sensor 154 even when the suction flow S is interrupted or not flowing, thereby enabling the reliable temperature signal to be reported to the control unit 150.

[0192] Ultimately, the control unit 150 is designed to monitor the volumetric flow of the suction flow S, for example, by means of at least one control program 153.

[0193] For example, the suction flow S has a volumetric flow VS, which has a pressure-dependent direction depending on the pressure P. The characteristic line VK of the volumetric flow of the suction flow S is... Figure 28 The values ​​are schematically drawn in the figure. In the case of negative or negative pressures P1, P2 and P3, the volumetric flow VS has values ​​VS1, VS2 and VS3 (in liters per second).

[0194] The suction flow S should not be lower than, for example, a minimum velocity of 20 m / s, in order to comply with, for example, a so-called dust level, according to which the suction instrument 10 always ensures sufficient suction for the dust level.

[0195] Depending on the diameter of the suction hose SL, the minimum volumetric flow rate VSmin for the suction flow S is derived from the minimum required velocity of the suction flow S, which is approximately 10 l / s, for example, when the diameter of the suction hose SL is 27 mm.

[0196] Because of the constant airflow provided, especially by the cooling airflows KLA, KLB and KLC, the control unit 150 can calculate the characteristic line VK of the volume flow of the suction flow S based on the motor characteristic lines MK1 and MK2 and the motor characteristic line of the drive motor 11D of the suction turbine 11 (not shown in the figures), since not only the characteristic line VK but also the motor characteristic lines MK1 and MK2 have a substantially constant, especially substantially linear, orientation in the range relevant to the monitoring of the volume flow or flow velocity of the suction flow S.

[0197] Motor characteristic lines MK1 and MK2 depend on voltages U1 and U2, at which the drive motor 11D operates. Motor characteristic lines MK1 and MK2 are proportional to the current flow of the motor current Imot, at which the drive motor 11D is energized by the motor current through the current-passing mechanism 140.

[0198] The control unit 150, and especially the control program 153, manipulates the current-passing mechanism 140 and obtains, for example, the corresponding existing motor voltage, such as motor voltages U1 and U2, as feedback therefrom, and obtains the corresponding motor current Imot for passing current to the drive motor 11D.

[0199] When the motor characteristic line MK1 or the motor current Imot is lower than the value I1min, or the motor characteristic line MK2 or the motor current Imot is lower than the value I2min, these values ​​correspond to the minimum volumetric flow rate VSmin for the suction flow S, respectively. The control unit 150 then identifies that the flow velocity of the suction flow S is too low and outputs a warning, for example, at the indicator 157. In this case, the control unit 150 can optionally or additionally output an audible warning at a speaker or other acoustic output device 158.

[0200] For comfortable transport of the suction instrument 10, or the stack 9 consisting of the suction instrument 10 and the container cover 200, or even transport of the container cover 200 separately, a portable device 350 is advantageously used. The portable device 350 can be ergonomically adapted to the corresponding carrying situation by means of the length adjustment mechanism 351.

[0201] The portable device 350 can optionally be fixed to the suction instrument 10 or to the container cover 200. Accordingly, the portable device 350 has a fixing mechanism 340 at its longitudinal end region.

[0202] The fixing mechanism 340 can be brought into engagement with the fixing receiving portion 300 of the suction instrument 10 or the fixing receiving portion 320 of the container cover 200 as needed.

[0203] The fixing mechanism 340 has a base 341, which is designed in a plate shape.

[0204] The base 341 has a rear gripping profile 342 on its longitudinal side, which works in conjunction with the rear gripping profile 302 of the fixing receiving portion 300 to serve as a longitudinal guide, along which the fixing mechanism 340 can be inserted into the corresponding fixing receiving portion 300 along the insertion axis S300.

[0205] Regarding the insertion axis S300, which is forward along the insertion direction, the base 341 has an additional rear gripping profile 343, the front section 343A of which stops at the stop member 303 of the fixed receiving portion 300 at the end of the insertion movement along the insertion axis S300.

[0206] Then, the locking member 304 of the fixed receiving portion 300 can reach its locked position, in which the locking member can be operated by means of the operating surface or operating profile 305, in which the locking member reaches behind and / or above the rear gripping profile 344 of the fixing mechanism 340.

[0207] The locking member 304 is spring-loaded into its locked position, for example, and can react against the spring load by means of the operating surface 305 to be operated by the unlocking operation BE in the direction toward its released position. Then, the locking member 304 reaches disengagement from the rear gripping profile 344, so that the fixing mechanism 300 can move out of the fixed receiving portion 300 designed as a plug-in receiving portion.

[0208] Rear gripping profiles 343 and 344 extend between rear gripping profiles 342. Rear gripping profiles 343 and 344 are arranged at the opposing longitudinal end regions of the base 341.

[0209] The fixed receiving portion 320 is also designed as a plug-in receiving portion. The fixing mechanism 340 can be inserted into the corresponding fixed receiving portion 320 along the plug-in axis S320 or move out of the fixed receiving portion 320 along the plug-in axis S320.

[0210] Regarding the fixed receiving portion 320, the rear gripping contours 343 and 344 of the fixing mechanism 340 function as longitudinal guide contours, which are able to reach into engagement with the longitudinal guide contour or rear gripping contour 322 of the fixed receiving portion 320 and guide the fixing mechanism 340 along the insertion axis S320.

[0211] One of the rear gripping contours 342 of the fixing mechanism 340 (located forward along the insertion direction about the insertion axis S320) stops at the bottom or at the stop portion 323 at the end of the fixing receiving portion 320 about the insertion axis S320. Optionally, a rear gripping contour can be provided to accommodate the rear gripping contour 342. Then, the locking member 346 of the fixing mechanism 340 can also reach into engagement with the locking contour 324 of the locking element 325 of the fixing receiving portion 320, thereby locking the fixing mechanism 340 in the fixing receiving portion 320.

[0212] The locking member 346 is designed as a resilient tongue or resilient element relative to the base 341 and has an operating surface 345 by means of which the locking member and the locking profile 324 of the fixed receiving portion 320 can be brought to disengagement, as illustrated in the drawings by the arrow or operating BE2.

[0213] The fixing mechanism 340 has a strap receiving portion 347 for carrying 350. The carrying 350 can be inserted, for example, through the insertion opening 348 of the strap receiving portion 347 and held at the strap receiving portion 347 by frictional engagement through a corresponding winding measure.

[0214] The fixed receiving portion 320 of the container cover 200 is located at the longitudinal sidewalls 228 and 229 as follows, so that the portable 340 can be brought into engagement with the fixed receiving portion 320 in a manner that bridges the receiving space 223 of the container cover 200. Thus, the stack 9 can be said to be suspended downward from the portable 350 and is easy to carry.

[0215] Conversely, the fixed receiving portion 300 enables the carrying of the instrument 10 in a bag-like manner. For example, the fixed receiving portion 300 is arranged at one of the longitudinal sidewalls 26, 27, 28, or 29, specifically at the longitudinal sidewall 26 in this embodiment. In any case, it is advantageous for the fixed receiving portion 300 to be arranged on the narrow side of the instrument housing 20.

[0216] Advantageously, the fixed receiving portion 300 is arranged at the longitudinal end region of the longitudinal sidewall 26, that is, close to the longitudinal sidewalls 28 and 29, so that the carrying 350 can use the middle section of the longitudinal sidewall 26 as a strap or hand handle suitable for hanging on the shoulder.

Claims

1. Electrical apparatus having a housing in which at least one electrical consumer is arranged, wherein The electrical instrument has a current supply mechanism (80) with an energy storage housing (81) for supplying current to the electrical consumer. At least two instrument interfaces (90A, 90B) are arranged in the internal space of the energy storage housing for disengagingly connecting the corresponding energy storage interfaces (190A, 190B) of the electrical energy storage (170A, 170B). The instrument interfaces (90A, 90B) are arranged at the opposing sidewalls (83, 84) of the energy storage housing (81), so that the energy storage (170A, 170B) can be arranged at the instrument interfaces (90A, 90B) with their bottom walls (175) facing each other.

2. The electrical instrument of claim 1, wherein, The energy storage housing (81) has an insertion opening (82) through which the energy storage (170A, 170B) can be inserted into the energy storage housing (81).

3. The electrical instrument of claim 2, wherein, The insertion opening (82) is opposite to the bottom of the energy storage housing (81).

4. The electrical instrument of any one of the preceding claims, wherein, The energy storage housing (81) is designed as a recess or frame on the outer wall of the housing.

5. The electrical instrument of claim 1, wherein, The energy storage housing (81) has a depth such that when the energy storage (170A, 170B) is housed in the energy storage housing (81), the energy storage (170A, 170B) does not protrude or only protrudes to a maximum of 10% of its length before the outer contour of the energy storage housing (81) and / or the housing.

6. The electrical instrument of claim 1, wherein, The instrument interfaces (90A, 90B) have a longitudinal guide profile (91) for guiding engagement of the longitudinal guide profile (191) of the energy storage interfaces (190A, 190B) along the insertion axis (SA).

7. The electrical instrument of claim 1, wherein, The instrument interfaces (90A, 90B) include a locking mechanism (92) for locking the locking mechanism (192) of the energy storage interfaces (190A, 190B).

8. The electrical instrument of claim 1, wherein, The energy storage housing (81) has connecting walls (85, 86) extending between opposing sidewalls (83, 84), which limit the internal space for accommodating the energy storage (170A, 170B).

9. The electrical instrument of claim 8, wherein, When the energy storage devices (170A, 170B) are housed in the energy storage housing (81), an operating space (88, 89) is provided between at least one connecting wall (85, 86) and the energy storage device (170A, 170B) opposite thereto, for gripping the energy storage device (170A, 170B).

10. The electrical instrument of claim 9, wherein, The operating spaces (88, 89) have a width corresponding to the width of an adult finger and / or at least 1.5 cm.

11. The electrical instrument of claim 10, wherein, The operating spaces (88, 89) extend continuously between the sidewalls (83, 84) of the energy storage housing (81).

12. The electrical instrument of any one of Claims 8-11, wherein, An operating space (88, 89) is arranged between each connecting wall (85, 86) and the energy storage device (170A, 170B) opposite thereto, through which the energy storage device (170A, 170B) can be clamped in a clip-like manner on its longitudinal side (172A) opposite to each other when the energy storage device (170A, 170B) is housed in the energy storage housing (81).

13. The electrical instrument of claim 8, wherein, The energy storage devices (170A, 170B) have an operating element (197) at at least one longitudinal side (172A), which engages with the energy storage device (81) when the energy storage device (170A, 170B) is housed in the energy storage device housing (81), and the energy storage device (170A, 170B) can be detached from the instrument interface (90A, 90B) in the energy storage device housing (81) by operation of the operating element.

14. The electrical instrument of claim 13, wherein, The operating element (197) can be manipulated between the connecting wall (85, 86) and the energy storage (170A, 170B) in the operating space (88, 89) engaged with the energy storage housing (81).

15. The electrical instrument of claim 13 or 14, wherein, The energy storage devices (170A, 170B) have corresponding operating elements (197) on their opposite longitudinal sides (172A).

16. The electrical apparatus of claim 1, wherein, The electrical instrument includes or has at least two energy storage devices (170A, 170B), and / or the electrical instrument forms part of a system including the electrical instrument and at least two energy storage devices (170A, 170B).

17. The electrical apparatus of claim 1, wherein, The housing forms a suction instrument housing, in which a suction turbine (11) is arranged in its internal space (23) for generating a suction flow (S), wherein the suction instrument housing has a suction inlet (12) for introducing the suction flow (S) and a dust collection space (21) for collecting dust contained in the suction flow (S), wherein a filter element (13) is arranged between the dust collection space (21) and the suction turbine inflow opening (11A) of the suction turbine (11) for blocking dust in the dust collection space (21).

18. The electrical apparatus of claim 1, wherein, The housing is designed to form a stacked housing (20A) for forming a stack of housings (9) extending along the direction of the stacking axis (SR), wherein at least one stacked container (200A) can be stacked below it and / or at least one stacked container (200A) can be stacked on it.

19. The electrical instrument of claim 18, wherein, The electrical instrument has a coupling device (58) for coupling its housing to a stacked container (200A) stacked or stacked along the stacking axis (SR), wherein the coupling device (58) of the electrical instrument is designed to work in conjunction with the coupling device (58) of the stacked container (200A) such that the housing and the stacked container (200A) are fixedly connected by means of the coupling device (58) transverse to and parallel to the stacking axis (SR).

20. The electrical instrument according to claim 19, characterized in that, The electrical instrument has a container cover (200) that can be stacked on top of or below the housing as a stacking container (200A) along the stacking axis (SR), wherein the container cover (200) and the housing have the coupling device (58) for fixedly coupling the housing and the container cover (200) parallel to and transverse to the stacking axis (SR), and wherein the container cover (200) has a receiving space for at least one component of the electrical instrument.

21. The electrical instrument according to claim 1, characterized in that, The electrical instrument is a portable electrical instrument.

22. The electrical instrument according to claim 1, characterized in that, The electrical instrument is of the type of a suction instrument (10), or of the type of a tool machine used for grinding and / or cutting the ground.

23. The electrical instrument according to claim 1, characterized in that, The power consumer is an electric drive motor (11D).

24. The electrical instrument according to claim 1, characterized in that, The energy storage device is a battery pack.

25. The electrical instrument according to claim 10, characterized in that, The operating spaces (88, 89) have a width of at least 2 cm.

26. The electrical instrument according to claim 20, characterized in that, The container cover (200) is configured to accommodate the suction hose (SL) of the electrical instrument.

Images