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The
The invention relates to an electrically operated suction unit for a
Vacuum cleaner that draws air to be filtered through an intake pipe
and passes it through a filter in such a way that the filter passes during the filtering process
at least partially from a substantially vertical upward
directed air flow is blown through.
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As
Alternative to the usual
Mobile household vacuum cleaners use devices that are central
have electrically operated suction unit. This is usually in the
Basement of the building
fixed on the wall or on the floor. The suction unit
often has a housing
with cylindrical
Shape up in which, among other things, a motor unit and a filter unit
are accommodated.
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Such an electrically operated suction unit according to the prior art is shown in 1 shown. The suction unit 1 is on the floor 6 the space of a building (e.g. in the basement), so not mobile. The dusty air S to be filtered occurs in the lower area of the suction unit 1 via an intake pipe 2 into this one. In the upper area of the suction unit 1 is an engine 18 arranged of the dusty air S from the intake pipe 2 attracts through a filter 3 sucks and vertically upwards through a blow-off pipe 8th releases R as pure air.
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The filter 3 is designed as a sack-like structure in this embodiment. With a solid line is in 1 the filter 3 shown in the position in which the suction unit 1 is not activated. The filter 3 in this case it sags down like a sack; Dust ST has accumulated in the bottom of the case 19 the suction unit 1 discontinued; this bottom area of the case 19 serves as a "waste container" in which dust ST collects.
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Will the suction unit 1 activated, ie the motor 18 switched on, the filter 3 sucked into the position shown by dashed lines. The motor 18 causes an air flow 4 from the intake pipe 2 over the space of the filter 3 to the blow-off pipe 8th so the filter 3 during the filtering process at least partially from the vertically upward air flow 4 is blown through.
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Because the filter 3 for the dust ST is not permeable, this is from the filter 3 retained; becomes the suction unit 1 then turned off and the filter drops 3 back to the position shown with a solid line, the dust ST down into the bottom of the housing 19 fall. Has enough dust ST in the bottom of the case 19 accumulated, it is removed. Such designs are sometimes referred to as cyclone filter systems.
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Even though vacuum cleaner systems with a centrally arranged suction unit already guarantee a high level of hygiene, it has been found that the emptying of the accumulated dust from the suction unit brings with it a heavy load of dust particles, which causes problems especially for people who are at risk of allergies. When emptying the dust ST from the suction unit 1 In the case of known systems, the problem arises that, despite the greatest possible care, it cannot be ensured that dust particles get into the environment and cause annoyances or allergic reactions in the persons who carry out the cleaning or emptying process.
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The
The invention is therefore based on the object of a suction unit
generic type so
train that it's possible
an emptying of the dust accumulated in the suction unit
so that any leakage of dust is reliably excluded
is. This is to ensure that people with allergies are also at risk
the cleaning or emptying of the suction unit itself
can make accumulated dust,
without being exposed to the risk of dust particles in
To come in contact. The solution to be developed should nevertheless ensure
that the suction unit has a high efficiency, which is the suction power
As. The solution should continue
so executed
be that the removal of the dust from the suction unit in very
can be easily accomplished. Furthermore, it should be ensured
that the suction unit with all its components is designed
that there is an inexpensive design, so that it is also economical
Adequate accounts are taken into account.
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The
solution
this object by the invention is characterized in that
the filter is connected to a dust container, the
Dust receptacle
detachable with the suction pipe
can be connected and where the dust container together with the filter as a unit
is interchangeably arranged in the suction unit.
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According to this, it is provided that the electrically operated suction unit has a unit which consists of the dust container and the filter connected to it, which is interchangeably housed in the suction unit and can be replaced as a whole. As will be seen in detail later, this opens up the possibility for the first time to dispose of the dust collected in the suction unit in such a way that any contamination of the surroundings with dust is guaranteed to be avoided is closed. For the first time, a connection of the elements dust collection space ("waste container") and filter is provided as a single unit.
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The
the proposed concept is preferably used for suction units,
which are part of built-in vacuum cleaner systems, so they are firmly on
are arranged on the floor or on the wall of a building.
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The
Intake pipe preferably has an orientation when entering the suction unit
perpendicular to the vertical. That means the intake pipe in this
Trap enters the suction unit from the side; this is done with advantage
in the lower area of the suction unit, which is to be understood here
is that this is in the bottom half
of the overall height
the suction unit is the case.
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According to one
Another advantageous embodiment provides that the after
air flow directed above inside the suction unit over a
Exhaust pipe extending in the direction of the vertical from the suction unit
is derived, with the blow-off pipe in the upper area of the
Suction unit is located. This in turn means that
the blow-off pipe in the upper half
the height extension
(Height)
the suction unit is arranged; preferably it occurs vertically
from the top of the suction unit.
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The
Dust receptacle
can be as cuboid
Box are trained. Exactly the same, of course, are alternative shapes
possible,
z. B. a cylindrical shape
trained dust container.
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The
Filter, which is connected to the dust container, according to one
Training an essentially pyramid-shaped or truncated pyramid-shaped configuration.
This results in a particularly simple manufacturing option
for the
Unit consisting of dust container and filter.
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Important
is that the dust container and
the filter is connected gas-tight to ensure
that when removing the unit consisting of dust container and
Do not filter any dust in the dust container
Can leave unit. According to a preferred embodiment of the
Invention are dust containers
and filters glued together. Alternatively, however, can also
be provided that the dust container and the filter with a detachable connection
are interconnected. Here is a clip connection in particular,
like they are in food storage containers
are known in the household, which can be clipped onto the actual container
have a gas-tight cover.
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A
further development of the invention provides that the upper end
of the filter by a holding element, in particular by a fork-shaped one
Sheet metal part is held in its working position.
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The
The system's dustproofness is further improved by
that a sealing element in the area of the inlet of the intake pipe
in the dust container
is arranged. A latex membrane is preferably provided here,
which is glued to the inner wall of the dust container or itself
in the passage opening
for the
Intake pipe is located.
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Very
Means are also advantageously provided for ensuring
can be that when removing the unit from the dust container and
Filter from the suction unit is guaranteed to be attached to this unit
no opening
from which dust can escape. Here is by name
to the opening
thought that the dust container for the passage of the suction pipe
must have.
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Therefore
a further development provides that the dust container closure means
with which its opening
can be closed to accommodate the intake pipe. In the
Design of these closure means are of course economic considerations in the
To keep an eye. Therefore, it is preferably provided that the closure means
have a manually displaceable slide which is translationally displaceable in a guide
guided
is. The slide is preferably made of cardboard. advantageously,
the slide has a safe and easy operation
Recessed grip.
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With
this embodiment of an electrically operated suction unit
Vacuum cleaner, especially a central vacuum system, is one possibility
created the removal of the accumulated in the suction unit
Dust so that it is guaranteed that no dust from
the exception container
leak and contaminate the environment.
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The
proposed design ("cyclone filter") also has
the advantage that there is no compression of the
Layer of dust on the filter, but this - due to
of dust falling vertically downwards and accumulating in the floor area
of the receptacle - largely
remains free and thus the suction power of the system at a constantly high level
Level is maintained.
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Although the proposed concept is particularly suitable for central vacuum systems net, it is also usable in those mobile vacuum cleaners in which the air flow in the suction unit is at least partially directed vertically upwards, e.g. B. in industrial vacuum cleaners.
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In
the drawing is an embodiment of the
Invention shown. Show it:
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1 schematically in the front view an electrically operated suction unit of a vacuum cleaner system, which works with a centrally and firmly arranged suction unit, according to the prior art,
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2 such a suction unit according to a possible configuration according to the invention,
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3 a perspective view of the unit consisting of dust container and filter and
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4 the section through the dust container in a detailed view, only the entry of the suction pipe into the dust container is outlined.
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In 2 is the suction unit 1 of a vacuum cleaner system, which is stationary on the floor 6 a basement of a building is placed. The housing 19 the suction unit 1 is with an intake pipe 2 connected. Via the intake pipe 2 dusty air S is sucked in, in the suction unit 1 filtered and through a blow-off pipe 8th released as pure air R again.
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The blow-off pipe 8th is connected to the environment via a pipe system, not shown, to where the exhaust air from the vacuum cleaner is directed.
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The intake pipe 2 is, however, connected to a pipe system, not shown, which leads to air sockets, which are installed in the walls of different rooms in the building. A mobile suction pipe can be connected to the air sockets. Through the coupling process, the motor 18 the suction unit 1 activated. The end of the mobile suction pipe can suck in dirt and dust. This becomes a suction unit via the pipe system 1 passed, there in a filter 3 filtered out and the pure air R through the blow-off pipe 8th released to the environment.
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How 2 is in the suction unit 1 , namely in their housing 19 , a unit consisting of a truncated pyramid-shaped filter 3 that with a dust container 5 is connected, which is cuboid. The course of the air flow is indicated by arrows 4 shown, which is with activated suction unit 1 , ie with the engine switched on 18 , results: The dusty air S is discharged through the intake pipe 2 into the suction unit 1 sucked in and into the dust container 5 directed. The "roof" of the dust container 5 is through the truncated pyramid-shaped filter 3 educated. The airflow 4 passes the filter 3 , in such a way that the filter 3 is at least partially blown by the air flow directed essentially upward in the vertical direction V during the filtering process. The airflow 4 with the pure air R then leaves through the blow-off pipe 8th the suction unit 1 ,
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This configuration ensures that when the engine is switched off 18 the dust ST, which is initially on the inside of the "pyramid roof" of the filter 3 accumulates, falls down and settles in the bottom area of the dust container 5 collects.
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The intake pipe 2 is via a suitable mechanism, e.g. B. by means of a bayonet lock, with the dust container 5 connected, ie the intake pipe 2 is detachable with the dust container 5 in contact. The intake pipe 2 is in the lower area 7 the suction unit 1 , The blow-off pipe 8th is in the upper range 9 the suction unit 1 arranged.
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It is not shown that in the upper area 9 the suction unit 1 a compartment in which the engine is located 18 is housed. This room can be equipped with noise insulation elements, not shown, in order to operate the suction unit as quietly as possible 1 to ensure.
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In 3 can be seen that the top end 10 of the filter 3 , ie the "tip of the truncated pyramid", of a holding element 11 is held in position in the form of a sheet metal fork. The top end 10 of the filter 3 can be done with a small plate 20 be covered. The plate 20 has such an extent that its safe grasping and holding by the appropriately dimensioned sheet metal fork 11 is guaranteed. The passage of the air flow 4 takes place through the four truncated pyramid faces.
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3 it can also be seen that in a corner area of the dust container 5 a slider 15 made of cardboard with a recessed grip 17 is arranged, the component of a closure means 13 to close the opening 14 (S. 4 ) through which the intake pipe 2 in the dust container 5 entry.
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In 4 is first shown how the intake pipe 2 the wall of the dust container 5 passes through what the circular opening 14 is provided. To ensure the tightness between the intake pipe 2 and dust container 5 is a sealing element 12 provided in the form of a latex membrane. This is in the area of the opening 14 arranged so that when inserting the intake pipe 2 into the opening 14 of the dust container 5 the membrane 12 on the intake pipe 2 creates and thus a gas-tight seal is ensured.
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In 4 It can also be seen that on the inside of the dust container 5 a tour 16 for the in 3 shown slide 15 is also arranged in 4 , but here with dashed lines. The slider 15 consists of a cardboard flap that is translational in the guide 16 can be moved.
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For ergonomically simple actuation it is provided that the slide 15 in a recessed corner of the dust container 5 is arranged as in 3 can be seen.
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So that the slider 15 with the intake pipe still connected 2 can be closed, a flange part ensures 21 - see 4 - for the intake pipe 2 not too far into the inside of the dust container 5 can reach into it.
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To close the opening 14 of the dust container 5 with the intake pipe not yet removed 2 is in the recessed grip 17 (S. 3 ) intervened and the slide 15 moved in the direction of the arrow. this causes the slider 15 in the leadership 16 is moved so that the opening 14 is closed.
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A
conceivable alternative embodiment provides that an actuation of the
Slider also over
a corner of the dust container
he follows. Then a slide made of sheet metal will be preferable,
to ensure sufficient elastic properties.
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Over a door 22 of the housing 19 the suction unit 1 (S. 2 ) can then be filled with dust ST unit from dust container 5 and filters 3 removed and replaced by a new unit.
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This guarantees a contamination-free change of the dust container 5 or emptying the dust ST from the suction unit 1 guaranteed.
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In some filter systems for vacuum cleaners, it is observed that to the extent that the dust-receiving space fills with dust, the suction power of the vacuum cleaner system drops because a layer of dust accumulates on the filter and is compressed by the air flow. This problem cannot arise with the proposed construction concept, since after the engine has been switched off 18 the suction unit 1 which is on the inside of the filter 3 Accumulated dust ST falls down by gravity and settles in the bottom area of the dust container 5 accumulates.
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The unit consisting of a dust container 5 and filters 3 can be provided with handles, not shown, which allow easy handling. The dust container 5 preferably consists of sturdy cardboard; handles made of solid cardboard can be glued to this. As a filter 3 commercially available paper vacuum cleaner filters have proven their worth.
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A
An advantageous embodiment of the suction unit provides that in the floor area
a compartment is provided (not shown) in the accessories of the vacuum cleaner
can be accommodated.
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- 1
- suction unit
- 2
- intake
- 3
- filter
- 4
- airflow
- 5
- Dust receptacle
- 6
- ground
- 7
- lower
Area of the suction unit
- 8th
- blow-off
- 9
- upper
Area of the suction unit
- 10
- upper
End of the filter
- 11
- retaining element
(Sheet metal fork)
- 12
- sealing element
(Latex membrane)
- 13
- closure means
- 14
- opening
- 15
- pusher
- 16
- guide
- 17
- grip
- 18
- engine
- 19
- casing
- 20
- plate
- 21
- flange
- 22
- door
- V
- vertical
- S
- dusty
air
- R
- pure
air
- ST
- dust