DE102012202286A1 - Collecting container for collecting particles for a vortex separator - Google Patents

Abstract

A collecting vessel (150) for collecting particles for a vortex separator according to an embodiment comprises a housing element (160) which at least partially defines a collecting volume (190) of the collecting vessel (150) and an opening (180) in the housing element (160), which is designed and arranged such that particles can pass through the opening (180) from the separating chamber (110) into the collecting volume (190) of the collecting container (150) due to a vortex prevailing in a separating chamber (110) of the vortex separator, wherein the housing element (160) comprises a baffle (200) configured to at least partially effect a flow component parallel to the orifice (180) as the gas flow vertically enters through the orifice (180). A collecting container (150) according to an exemplary embodiment can thus possibly improve a compromise between a degree of separation and a suck-back behavior of a vortex separator and a filling behavior of its collecting container (150) by causing a corresponding flow component. This can often be achieved inexpensively using simple structural measures.

Description

Background of the invention

Embodiments relate to a collecting container for collecting particles for a vortex separator, for example a vacuum cleaner operating on the basis of the centrifugal principle.

State of the art

In the area of the vacuum cleaner bagless devices have become increasingly established in the market in addition to such devices that work on the basis of filter bags, in recent years. These are achieved via at least one Wirbelabscheiderstufe, which is sometimes also referred to as Wirbelrohrabscheider, a separation of particles from a charged with the particles gas stream. By using the centrifugal forces and forming a vortex in a separator chamber of the vortex separator, corresponding vacuum cleaners are often referred to as cyclone vacuums.

In order to increase a degree of separation in such cyclone vacuum cleaners, but also in other vortex separators, different measures can be taken. One measure for increasing the degree of separation is to enlarge an ejection port through which the particles separated from the vortex separator are segregated. However, this can lead to stronger air movements in an interior of a collecting container into which the discharge opening opens. As a result, in turn, the filling behavior of the collecting container can be deteriorated. Thus, it may happen that this is unevenly filled only unilaterally or in other ways with the particles to be separated, so for example, dirt. Thus, it may not be possible to use the entire container volume for the filling, so that a more frequent emptying can be a consequence.

In addition, larger and / or stronger vortices can often form in such a container, which may possibly lead to a sucking back of the particles from the collecting container into the separating chamber. As a result of these vortices, it is possible, for example, for longer particles, for example hair and other fibers, to get out of the collecting container and thereby also be pulled out of the collecting container at these trapped dirt lint and other particles. As a result, downstream filters and filter stages, for example fine dust filters, can be clogged, if appropriate.

The EP 1 547 509 A2 refers to a dirt trap for a cyclone vacuum cleaner, in which a guide rib is attached to an opening which connects the dirt collecting chamber with the Abscheidekammer in which the vortex forms. The deposition chamber is designed here as part of the air flow, so it flows through.

The problem underlying the invention

Based on this, there is a need to improve a compromise between a degree of separation and a Rücksaugverhalten a vortex separator and a filling behavior of his collection container.

Inventive solution

This requirement is borne by a collecting container according to claim 1. The reference numbers in all claims here have no limiting effect, but are only intended to improve their readability. Its implicit reference to specific embodiments of the subject matters and methods defined in the claims is only intended to facilitate understanding of the scope of protection as defined by the language of the claims.

A collecting container for collecting particles for a vortex separator according to an embodiment comprises a housing element which at least partially defines a collecting volume of the collecting container, and an opening in the housing element, which is designed and arranged such that particles due to vortex prevailing in a separating space of the vortex separator through the opening from the separation chamber into the collecting volume of the collecting container, wherein the housing volume comprises a guide structure which is designed such that it at least partially causes a flow component parallel to the opening at a gas flow entering through the opening. The housing element can in this case separate the collecting volume or the collecting container from the separating chamber. The gas stream may be, for example, an air stream.

A collecting container according to an embodiment is thus based on the finding that a compromise between a degree of separation and a suck-back behavior of a vortex separator and the filling behavior of its collecting container can be improved by the housing element, which comprises the opening, further comprising a guide structure which is formed in this way in that, in the case of a vertically entering gas flow, it at least partially effects a flow component parallel to the opening. Thereby, that the guide structure thus at least partially causes a deflection of the entering into the collecting container through the opening gas flow, the filling behavior of the collecting container can be improved by the fact that now the air laden with the particles spread over a larger area and there emits the particles. Likewise, by the corresponding guidance of the gas flow, if necessary, a sucking back of already reached into the collecting container particles can be reduced, which in turn allows an implementation of a larger opening in the housing element, whereby the degree of separation can optionally be improved. It may also be due to the at least partial deflection of the gas stream to slow it down, whereby the particles are more easily separated from this.

Advantageous embodiments and developments, which can be used individually or in combination with each other, are the subject of the dependent claims. The reference numerals in the claims have no limiting effect but are merely intended to improve their readability.

In a catch container according to an embodiment, the guide structure may at least partially extend into a projection of the opening along a surface normal of the opening. In this case, the opening can have a passage area through which the particles can pass from the separation space into the collecting volume, wherein the surface normal of the opening is a surface normal of the passage area. The passage surface here is an area in the mathematical sense, which can coincide at most outside the opening with a physical surface of a component or another object. The passage area can in this case be designed such that all the particles which can pass through the opening from the separation chamber into the collecting volume have also passed through the passage area. In this way, if appropriate, the aforementioned compromise can be further improved in that the gas stream can interact with the guide structure immediately upon or after entry through the opening into the collecting container. In this case, in some exemplary embodiments, the guide structure may also be designed such that it only partially extends into the projection of the opening along the surface normal of the opening.

In a collecting container according to an embodiment, the guide structure may comprise a substantially flat guide section. As a result, the deflection effect of the conductive structure can optionally be increased further.

In a collecting container according to an embodiment, the guide structure may have a guide portion which is oriented at an angle between 0 ° and 90 °, for example at least 15 ° and at most 75 °, to a surface normal of the opening. In this way, if appropriate, the aforementioned compromise can be further improved by the entering or entering gas flow interacting through the interaction with the guide section, which is inclined relative to the surface normal. In this case, the flow component grows parallel to the opening at first as the angle increases, so that an improvement in the filling behavior of the collecting container should result, at least initially, as the angle increases. On the other hand, however, it may also be advisable to limit the angle between the guide section and the surface normal, since depending on the specific arrangement and design of the guide structure, this may possibly lead to a reduction in the effective size of the opening, whereby the degree of separation may be adversely affected in this way can, so that an improvement of the compromise of the aforementioned factors may possibly be achieved only conditionally.

In a collecting container according to an embodiment, the guide structure may have a guide portion, which is arranged offset in relation to an edge of the opening completely into the collecting volume into it. In this way, if necessary, the aforementioned compromise between separation efficiency, re-suction behavior and filling behavior can be improved, since a reduction of the degree of separation through the guide portion can optionally be reduced by the arrangement offset into the collecting volume.

In a collecting container according to an embodiment, the guide structure may be arranged directly on an edge of the opening. In this way, if appropriate, the generation of the flow component parallel to the opening can be improved, since the gas flow entering through the opening can interact more directly and directly with the guide structure. In one embodiment, for example, the conductive structure may be directly connected to the housing element, for example.

In a catch container according to an embodiment, the guide structure may extend exclusively along a part of an edge of the opening. As a result, it may also be possible to improve the aforementioned compromise since, as a result of this arrangement of the conductive structure, on the one hand, the formation of the flow component may be parallel to the one Surface can be improved without significantly deteriorating the degree of separation.

In a receptacle according to an embodiment, the guide structure may extend along an extending direction of the opening at a side of the opening over a length of at least 5% of a length of the opening along the extending direction. As a result, if appropriate, formation of the flow component parallel to the opening can be promoted, so that again the compromise can be improved. With increasing length of the guide structure along the direction of extension, the formation of the flow component parallel to the surface can be further improved if necessary. Thus, in other embodiments of a collection container, it may be advisable to form the guide structure along the extension direction such that it is at least 10%, at least 20%, at least 25%, at least 40% or at least 50% of the length of the opening of the extension direction. Of course, however, shorter lengths than the aforementioned 5% can be implemented in embodiments of a collecting container.

In a receptacle according to an embodiment, the lead structure may extend at least 2% and at most 50% of a width of the opening with respect to an edge of the opening along a surface normal of the opening into the collection volume. Here, the width of the opening may be a width of the opening, starting from an edge portion, on which the guide structure is arranged, to an opposite edge portion. This may make it possible to improve the filling behavior of the collecting container and thus the aforementioned compromise, on the one hand, while implementing a certain minimum depth of the lead structure, while it does not exceed a maximum value. If necessary, for example, if the value in question is exceeded, the degree of separation may be excessively adversely affected or else the filling behavior could be adversely affected by a lead structure extending too far into the collecting volume. Thus, if necessary, with a guide structure extending too far into the collecting volume, the flow component parallel to the surface may no longer contribute, to the extent intended, to the distribution of the particles in the collecting volume.

Thus, in the case of a collecting container according to one exemplary embodiment, the guiding structure can, for example, protrude beyond an edge of the opening at least 5 mm, but not more than 50 mm in the direction of the collecting volume. Depending on the concrete implementation, it may thus be quite useful in embodiments to form the guide structure such that it optionally projects into the collecting volume at least 10 mm beyond the edge of the opening. However, it may also be useful to have a length of the lead structure over the edge, especially for smaller catch containers, where a distance from the opening to a bottom area (height) at which the particles collect is in the range of less than 20 cm The opening to limit upward, so as not to jeopardize the most uniform possible filling of the collection container. If the length of the guide structure is too large, it may be the case with flat collection containers that they are no longer filled evenly. For example, a significantly smaller amount of particles or dirt could be absorbed by the collecting container than would actually correspond to its collecting volume. Depending on the specific height of the collecting container, ie depending on the specific distance between the opening and the floor area, it may be advisable to extend the guide structure at most 40 mm, not more than 30 mm, possibly also not more than 20 mm beyond the edge of the opening. However, greater than the above values may also be useful in embodiments.

In a collecting container according to an embodiment, the opening may be arranged offset to a center of the collecting container. In such a collecting container, the guide structure may be arranged on a center-facing edge portion of an edge of the opening. In other words, in such an embodiment, the guide structure may be disposed between the center of the collection container and the opening. The center of the collecting container may in this case be given, for example, by a center line in a cross-sectional plane or by a median plane through the collecting container. This may possibly make it possible to realize an air flow configuration in the collecting container, which leads to a more efficient distribution of the particles in the collecting container and thus can improve the filling behavior. As a result of the described arrangement of the guide structure between the center of the collecting container and the opening, the flow component can thus be directed parallel to the opening onto a side wall or a similar housing element, which can then be used for deflecting the gas flow. Thus, for example, in such a configuration, an air flow may form parallel to a bottom region of the collecting container, on which the particles can then settle. In addition, by the corresponding diversion of the gas flow through the guide structure and optionally the side wall or the further housing element, a slowing down of the gas flow be achieved, which in turn may favor the separation of the particles from the gas stream.

In a receptacle according to an embodiment, the housing member may be a ceiling, a bottom surface or a side surface of the receptacle. Likewise, the housing element may also be a lid of the collecting container, for example a removable or hinged lid of the collecting container. In this way, if appropriate, a compact and space-efficient arrangement of the collecting container can be implemented in a corresponding vortex separator. In addition or as an alternative, this may also improve the operability of the vortex separator or its collecting container.

In a collecting container according to an embodiment, the opening may for example be formed substantially rectangular. Optionally, corners can be rounded.

In a collecting container according to an embodiment, this can be designed such that it can not be flowed through and / or is not flowed through during operation of the vortex separator. Thus, the collecting container may for example be designed such that during operation of the vortex separator, an incoming gas stream can only leave the collecting container through the opening again. In other words, the collecting container may be formed such that it has no further opening which is designed such that, during operation of the vortex separator, a gas flow in the collecting container could leave it again through the further opening. In this way, if appropriate, the re-suction behavior of the vortex separator and / or its filling behavior may be positively influenced because, on the one hand due to the lack of further opening, so the lack of flow through the collecting container no specific outlet opening is present, could leave the container again by the dust and other particles. Likewise, this may optionally reduce a flow velocity in the interior of the collecting container, which may have a positive effect on the filling behavior.

In a collecting container according to an embodiment, the guide structure and the housing element may be made in one piece. Additionally or alternatively, in one embodiment of a collecting container, the guide structure and the housing element may be made of a plastic, for example an injection-moldable plastic. As a result, it may be possible to achieve an improvement of the aforementioned compromise with structurally simple means, possibly even cost-neutral. Here, an integrally formed component is understood to mean one which is manufactured exactly from a contiguous piece of material. The term "integral" may therefore be used synonymously with the terms "integral" or "one-piece".

In a receptacle according to one embodiment, the housing member may further include a plurality of retention members extending into the collection volume via an edge of the opening and disposed along at least a portion of the periphery of the opening. In this way, it may possibly be possible to improve the re-sucking behavior in that the already mentioned long-fiber particles, for example hair, settle on the majority of the retaining elements and thus can not get back into the separation chamber or leave the collecting container.

In such a receptacle according to an embodiment, the retaining elements of the plurality of retaining elements may at least partially extend into a projection of the opening along a surface normal of the opening. Alternatively, the retaining elements of the plurality of retaining elements can also be arranged completely outside the projection of the opening.

In a receptacle according to an embodiment having a plurality of retaining members, the plurality of retaining members may each have an opening-facing portion that is bent or inclined at an angle to a surface normal of the opening, the angle being greater than 0 ° and smaller than 90 °. This may optionally support the creation of the flow component parallel to the opening, where appropriate, the portions of the retaining elements.

In a collecting container according to an embodiment having a plurality of retaining elements, the retaining elements of the plurality of retaining elements may each have a recess on a side facing away from the opening, which is partially or completely over a width of the retaining elements substantially perpendicular to an alignment direction of the respective Retaining element extends. The alignment direction in this case runs from a position of the retaining element to the opening. In this way, if necessary, a retention behavior of the retaining elements and thus the Rücksaugverhalten be positively influenced because the provision of the recesses on the backs of the retaining elements a probability is reduced with the example long-haired or langfasrige particles from the collecting container can pass back through the opening in the direction of the separation chamber.

Despite the word component "direction", the individual "directions" in the present case may not necessarily be a direction in the mathematical sense of a vector, but a line along which the corresponding movement takes place. Such a line can be straight but also bent. Abgrenzenzenzen here are directions that actually describe directions along a line, such as the direction of movement. Thus, for example, a first direction may be opposite to a second direction, but both run or be directed along a line also designated as a direction.

A frictional or frictional connection comes about through static friction, a cohesive connection by molecular or atomic interactions and forces and a positive connection by a geometric connection of the respective connection partners. The static friction thus presupposes in particular a normal force component between the two connection partners.

Adjacent are two objects, between which no further object of the same type is arranged. Immediately adjacent are corresponding objects when they are adjacent, that is, for example, in contact with each other.

For example, a component may have n-fold rotational symmetry, where n is a natural number greater than or equal to 2. An n-fold rotational symmetry is present when the component in question, for example, about a rotational or symmetry axis by (360 ° / n) is rotatable, and thereby merges substantially in terms of form in itself, ie in a corresponding rotation substantially to itself mapped in the mathematical sense. By contrast, in the case of a complete rotation-symmetrical design of a component in any rotation about any angle about the axis of rotation or symmetry, the component at least essentially changes in itself, so it is mapped onto itself in a mathematical sense. Both an n-fold rotational symmetry as well as a complete rotational symmetry is referred to here as rotational symmetry.

A collecting container according to an embodiment can thus improve as a compromise between a degree of separation and a Rücksaugverhalten a vortex separator and a filling behavior of its collecting container, where appropriate, by causing a corresponding flow component. This can often be achieved inexpensively using simple structural measures.

Brief description of the drawings

Hereinafter, embodiments will be described and explained in more detail with reference to the accompanying drawings.

1 shows a plan view of a housing of a vacuum cleaner with a collecting container according to an embodiment;

2 shows a cross-sectional view through the in 1 shown housing and the collection container shown there;

3 shows a plan view of a lid of in 1 shown collecting container from the side of the collection volume;

4 shows a cross-sectional view through the in 1 shown housing and the collection container shown there;

5 shows an enlarged detail of 4 ;

6 shows one 3 essentially corresponding supervisory view of the lid of the collection container 1 ;

7 shows a further cross-sectional view through the in 1 shown housing and the collection container shown there;

8th illustrated by the in 4 shown cross-section the formation of an air flow in the collecting container; and

9 illustrates, with reference to a conventional collecting container without a guide structure, an air flow in the collecting container shown there.

Detailed description of the figures

In the following description of exemplary embodiments, identical or similar reference symbols designate identical or comparable components.

1 shows parts of a housing 100 a vacuum cleaner having at least one operating according to the Wirbelabscheiderprinzip separator stage or filter stage. In this, taking advantage of the centrifugal principle particles, so for example dirt, dirt, hair and other solid and / or liquid particles, in a separation chamber 110 during operation of the vacuum cleaner by one in the separation chamber 110 prevailing vortex radially accelerated outward. The air or gas stream cleaned by the respective particles is sucked off through a center of the vortex. This is the case of the case 100 a connection opening 120 via which a suction hose can be connected to the vacuum cleaner and via a loaded with the relevant particles gas stream in the separation chamber 110 can be promoted. The connection opening 120 is here with the separation room 110 connected in such a way that through the connection opening 120 inflowing gas flow in the separation chamber 110 is put into a whirling motion.

The separation room 110 of the vortex separator is via an ejection channel 130 with an in 1 not shown opening in a lid 140 connected so that in the separation room 110 Due to the centrifugal forces acting on them radially outwardly accelerated particles via the discharge channel 130 and the opening, not shown, in a collecting container 150 can get in accordance with an embodiment. The collection container 150 This is also referred to as a dust container or simply a box.

The lid 140 is here as part of the collection container 150 executed. It is designed as a removable or hinged lid, which has an in 1 not as such recognizable discharge opening of the collection container 150 closes during operation of the vacuum cleaner. The lid 140 thus provides a specific example of a housing element 160 a collection container 150 according to an embodiment.

Before however the collecting container 150 in connection with the other figures, in particular in connection with 2 , will be described in more detail, is still the separation room 110 with regard to the further management of the gas flow with regard to its design. After the gas flow through the connection opening 120 in the separation room 110 The centrifugal forces acting on the particles entrained in the gas flow due to the vortex forming there in such a way that they are accelerated radially outwards, the gas stream substantially purified from the entrained particles in this way on an outlet grille 170 guided. Before the appropriate gas flow the outlet grille 170 If this happens, it can pass through further filter stages, for example a filter stage for fine dusts or other particles. In principle, all filter elements can be used which are known in the vacuum cleaner and Absaugebereich and technically useful.

2 shows a cross-sectional view through the housing 100 out 1 along the section line AA also marked there. So shows 2 a representation perpendicular to an axial direction about which the vortex in the separation chamber 110 during operation of the vacuum cleaner forms.

The separation room 110 is here designed substantially cylindrical and extends with its axis of rotation perpendicular to the in 2 shown cross-sectional plane AA. The separation room 110 is here on the previously mentioned ejection channel 130 and an opening 180 in the housing element 160 (Cover 140 ) with the collection container 150 or its collection volume 190 connected such that particles that are in the separation chamber 110 due to the prevailing during operation of the vacuum cleaner vortex radially outward into the discharge channel 130 be transported and from there into the collection volume 190 or the collecting container 150 can reach. The collection volume 190 This is essentially due to an interior of the collecting container 150 educated.

The housing element 160 of the collection container 150 here has a lead structure 200 , which is formed such that this at one through the opening 180 vertically entering gas flow at least partially a flow component parallel to the opening 180 causes. The lead structure 200 is also referred to as a diffuser ridge. As in particular in connection with the 3 to 5 will be shown in more detail, is the lead structure 200 in this case designed such that it at least partially into a projection of the opening 180 along a surface normal of the opening 180 extends into it.

By providing the lead structure 200 can with a collection container 150 according to one embodiment optionally the particles entrained in the gas stream and in the separation chamber 110 were separated from the gas stream, in the collecting container 150 even, possibly even almost evenly distributed. This may make it possible, the collection volume 190 of the collection container 150 better or more efficient to use and so the filling behavior of the collection container 150 to improve. In addition, the lead structure 200 also contribute to the fact that already deposited particles, so for example deposited dirt, again from the collection container 150 due to the prevailing turbulence through the opening 180 back to the separation room 110 can reach. So can the lead structure 200 This, for example, by creating a corresponding gas flow, which is also referred to as counterflow, optionally create. This can be done using the lead structure 200 Consequently, if necessary, the Rücksaugverhalten the vortex separator can be improved without having to accept significant losses in terms of the degree of separation, not least of a size of the opening 180 depends.

The lead structure 200 in this case has a substantially flat conductive section 210 which is oriented at an angle between 0 ° and 90 ° to a surface normal of the opening. More specifically, as well as in connection with the 4 and 5 will be described in more detail, the angle between the surface normal and the guide section 210 in the present case about 60 °.

However, in other embodiments, the angle in question may also have other values, for example values in the range between at least 15 ° and at most 75 ° to that not in 2 assumed surface normals. By choosing the appropriate angle so the flow component can be parallel to the opening 180 be effected, wherein the selected angle, for example, influence on the strength of the flow component parallel to the opening 180 , but also on other parameters, such as an effective size of the opening 180 and thus can also take the degree of separation of the vacuum cleaner. The angle can thus typically be varied between 0 ° and 90 °, optimum values depending on the specific geometry of the collecting container and possibly other parameters of the vacuum cleaner. At the in 2 As shown, the angle is in the range of about 60 °, but may in other embodiments with optionally differently shaped collecting containers 150 or other housings 100 quite different values.

Before, however, in connection with the 3 to 5 the lead structure 200 is described in detail with regard to their design, are first in connection with 2 Further design features of the collection container 150 described. The housing element 160 has a border, for example 220 on, which is formed such that this with the side walls 230 of the collection container 150 is brought into contact, that the housing element 160 So the removable lid 140 , the collection container 150 closes. For this purpose, make the edge 220 as well as the side walls 230 a gap seal, by the escape of in the collecting container 150 deposited particles should be avoided.

In addition, the housing element 160 a plurality of retaining elements 240 on, extending over an edge of the opening 180 in the collection volume 190 extend and along at least a portion of the circumference of the opening 180 are arranged. So are in 2 a total of three retaining elements 240 provided with the reference number.

3 shows a view of that as a lid 140 molded housing element 160 starting from the collection volume 190 , More specifically shows 3 a cross-sectional view of the housing 100 along the in 2 shown section plane BB facing the lid 140 ,

The housing element 160 in this case has to stiffen a plurality of stiffening ribs 250 on, who cross each other. The stiffening ribs 250 serve here to increase the mechanical stability of the housing element 160 , This can for example be made of an injection-moldable plastic, but in principle also of any other suitable material. Especially when using plastic, it may be advisable to increase the mechanical stability of the stiffening ribs 250 even though, of course, their concrete geometric implementation is far from being a necessary realization.

3 also shows the geometric design of the opening 180 , which is formed in the present embodiment is substantially rectangular, with the individual corners of the opening 180 are designed with different radii of curvature.

The opening 180 extends along an extension direction 260 , in the 3 is shown as a dotted line. The lead structure 200 with her lead section 210 extends along the extension direction 260 on one side of the opening 180 over a length of about 50% of the length of the opening 180 along the extension direction 260 , As a result, an at least not inconsiderable proportion of the in the collection container 150 entering air from the lead structure 200 influenced such that the flow component described above parallel to the opening 180 is effected by this. In other embodiments of a collection container 150 can the lead structure 200 of course, a different or different length along the extension direction 260 exhibit. This is the guiding structure 200 typically at least 5% of the length of the opening in many embodiments 180 along the extension direction 260 but may be shorter if necessary. For example, the length may be at least 10%, at least 20%, at least 25%, at least 40%, or at least 50% of the length of the opening 180 be. However, it may also be shorter than the aforementioned lead structures 200 implemented become. Basically, with increasing length of the conductive structure 200 or their lead 210 the flow component caused thereby parallel to the opening 180 reinforced, which is due to the compromise described above in terms of the degree of separation and the backflow behavior of the vortex separator on the one hand and the filling behavior of the collecting container 150 on the other hand can make a positive impact. So does the lead structure with increasing length 200 and their lead 210 tends to flow component parallel to the opening 180 strengthened. However, other considerations may limit the length of the lead structure 200 if necessary be advisable.

3 further illustrates that in the embodiment shown there, the lead structure 200 right on one edge 270 the opening 180 is arranged. This may optionally cause an interaction between the gas flow passing through the orifice 180 in the collection volume 190 of the collection container 150 penetrates, and the lead structure 200 or their lead 210 be enlarged. Thus, optionally, the flow component parallel to the opening 180 be strengthened.

For this purpose, the lead structure extends 200 in the embodiment shown here further at least partially in a projection of the opening 180 along a surface normal 280 the opening 180 into it. The opening 180 In this case has a passage area through which the particles from the separation chamber 110 (not shown in 3 ) in the collection volume 190 (not shown in 3 ) can get. The surface normal 280 the opening 180 Here is just a surface normal of the passage opening. The passage surface is an area in the mathematical sense, the maximum outside the opening 180 can coincide with a physical surface of a component or an object. The passage area is in this case designed such that all particles passing through the opening 180 from the separation room 110 in the collection volume 190 can pass, have also passed the passage area. In other words, the passage area comprises the area of the opening 180 Completely.

By doing that, the lead structure 200 now at least partially, more precisely in the embodiment shown here even only partially in the projection of the opening 180 along the surface normals 280 extends, so can the previously described, parallel to the opening 180 directed flow component can be effected, but without an effective usable area of the opening 180 and thus significantly adversely affect the degree of separation of the corresponding vortex separator.

Not least in order to reliably generate a corresponding flow component, extends in the embodiment shown here, the lead structure 200 only along part of the edge 270 the opening 180 , Of course, in other embodiments, the lead structure 200 if necessary, the opening 180 completely surrounded, if they still the flow component described above parallel to the opening 180 causes.

In the embodiment of a collection container shown here 150 is the opening 180 offset to a center 290 of the collection container 150 arranged. The middle 290 is to be understood here in the sense of a median plane or center line, which in the present case is parallel to the extension direction 260 is aligned. The lead structure 200 is here at one of the middle 290 facing edge portion of the edge 270 the opening 180 arranged, so, like this 3 also illustrated, between the middle 290 and the opening 180 , This will be through the opening 180 in the collection volume 190 incoming air through the lead structure 200 first towards a side wall 230 before this then from the sidewall 230 parallel to the opening 180 and a bottom portion of the collection container 150 is directed. As a result of this arrangement, on the one hand, on the one hand, the air flow can be slowed down, on the other hand, a flow can be achieved which leads to a substantially uniform, but at least improved, filling of the collecting volume 190 can contribute. Likewise, if appropriate, by this arrangement of the conductive structure 200 a backflow of particles from the collection volume 190 in the separation room 110 prevented, or at least reduced.

In the vicinity of the opening also referred to as ejection opening 180 of the vortex separator is thus the lead structure 200 arranged so that they are in the direction of the collection container 150 flying, already separated particles from entering the collecting container 150 not obstructed, but very well oriented in such a way that from the container 150 in the direction of the separation room 110 returning particles, such as long hair, from the lead structure 200 be held back and so not in the separation room 110 can be sucked back. The lead structure 200 this is in the opposite direction to the larger side of the collection container 150 appropriate.

3 further shows that the retaining elements 240 the plurality of retaining elements at least partially in the projection of the opening 180 along the surface normals 280 the opening 180 extend into it. In this way, optionally, a sucking back of the particles in the separation chamber 110 (not shown in 3 ) especially be prevented by long-fiber particles, so for example hair or other lint. In other embodiments, however, the retaining elements 240 the plurality of retaining elements possibly also completely outside the projection of the opening 180 be arranged.

4 shows a cross-sectional view along in FIG 2 Plotted cutting plane CC through the housing 100 with the collection container 150 according to an embodiment. So shows the in 4 shown cross-sectional view of the housing 100 with the components already described above. In particular, illustrated 4 the location of the lead structure 200 or their lead 210 based on the middle 290 , It should be noted here in particular with regard to the position of the surface normal 280 in that the housing element 160 and with it the opening 180 slightly inclined to the in 4 shown cross-sectional plane CC runs. In addition, shows 4 by a circle D a position of an enlarged representation, which in 5 is shown.

5 shows the already in 4 area D marked with respect to its location, which is located in the 4 shown cross-sectional plane CC is located. So shows 5 an enlargement of the area of the housing element 160 (Cover 140 ) in the area of the opening 180 with the lead structure 200 and their lead 210 , So shows 5 the surface normal 280 , The surface normal 280 stands here perpendicular to the previously mentioned, but not described in more detail with respect to their location passage area 300 the opening 180 , The passage area 300 is here drawn as a dotted line in the cross-sectional plane CC and represents an area in the mathematical sense, the maximum outside the opening 180 can coincide with a physical surface of a component or an object. The passage area 300 is in this case such that all particles coming out of the separation chamber 110 or its discharge channel 130 in the collection volume 190 arrive, the passage area 300 also have to happen. It is thus at the passage area 300 around the full area of the opening 180 ,

As 5 also illustrated, is the lead section 210 the lead structure 200 based on a position of the edge 270 completely into the collection volume 190 arranged offset in it. For this purpose, the lead structure 200 a connection section 310 on the one hand with the lead section 210 and on the other hand with the housing element 160 So the lid 140 , is directly connected. In this way, if necessary, not only the filling behavior of the collecting container 150 can be improved, it may also have a negative influence of the lead section 210 or the lead structure 200 be reduced to the degree of separation by just one, if necessary, through the guide structure 200 produced rejuvenation of the opening 180 in the collection volume 190 is put into it. Nevertheless, this may possibly cause a flow parallel to the opening 180 caused by the filling behavior of the collection container 150 can be improved. So illustrate in 5 two dotted, horizontally extending lines an extension of the connecting portion 310 along the surface normals 280 ,

The lead structure 200 extends here based on the edge 270 the opening 180 along the surface normals 280 the opening 180 in the collection volume 190 over a height 320 typically at least 2% and typically at most 50% of a width of the opening 180 equivalent. The width of the opening is in this case the width which extends from an edge portion at which the guide structure 200 is arranged, to an opposite edge portion of the opening 180 results. By this choice of height 320 typically between 2% and at most 50% of the width of the opening 180 Thus, an overly strong negative influence on the degree of separation of the vortex separator on the one hand and a negative effect on the filling behavior of the collecting container 150 be avoided in many cases. However, in other embodiments, a greater height may be used 320 optionally implemented as the aforementioned 50% of the width.

The angle of the lead section 210 , below this to the surface normals 280 is arranged, is - as explained above - in the embodiment shown here about 60 °, but can be varied in other embodiments quite in the range between 0 ° and 90 °, in other embodiments between 15 ° and 75 °. Together with the extension of the connecting section 310 along the surface normals 280 so arise a variety of geometric

Design options of the lead structure 200 , which allow adaptation to different separation systems with different geometries. So can the lead structure 200 optionally be specifically adapted to different separation systems with possibly different geometries, but also to differently sized vortex separator.

But especially with tend to rather less high, so shallow collection containers 150 in which a distance between a bottom portion of the collection container 150 and a lid 140 or a ceiling section is less than 20 cm, it may be useful to adjust the height 320 the lead structure 200 to limit. So it may be advisable, these to a maximum of 50 mm along the surface normal 280 to restrict. In other embodiments, it may even be advisable to limit these to at most 40 mm, at most 30 mm or at most 20 mm, for example, to influence the filling behavior is not negative or at least not too negative. On the other hand, it may be advisable to use the lead structure 200 with a height 320 of at least 5 mm to provide a corresponding formation of the flow component parallel to the opening 180 to enable.

The lead section 210 In this case, therefore, is arranged obliquely so as not to impede a significant degree of dust separation on the one hand, but with regard to the collecting volume 190 designed such that it forms a catch nose with such a minimum height, so that prevents slipping of hair and other fibrous particles, but at least reduced. On the other hand, the height should be 320 not be so high that a uniform filling of the collection container 150 is difficult. For this purpose, the guide section 210 a slope with an angle of about 60 ° to the surface normal 280 which also essentially coincides with the direction of ejection.

The lead structure 200 may optionally not only improve the filling behavior of the collecting container 150 but also prevent the sucking back of hair and other particles, in particular fibrous particles.

In which in the 1 to 5 The embodiment shown is the lead structure 200 arranged such that the of the conductive structure 200 caused flow component, ie the corresponding Umleitgasstrom (counter gas flow) is directed towards the smaller side of the container, thus the vortex formation in the collecting container 150 to minimize. This results, as in connection with 8th and 9 will be described, a flow along the bottom portion of the collection container 150 , whereby a more optimal and areal filling of the same is possible.

As before, in connection with the connection section 310 has explained, the lead structure 200 and the housing element 160 So for example the lid 140 to be made in one piece. Additionally or alternatively, the lead structure 200 together with the housing element 160 for example, be made of a plastic, such as an injection-moldable plastic. This may make it possible, if necessary, a collecting container 150 According to one embodiment, to implement substantially cost-neutral by the use of simple technical means.

6 shows one 3 very similar representation of the housing element 160 (Cover 140 ), in contrast to 3 a further cross-sectional plane KK is shown in 7 is shown in more detail.

So shows 7 the housing 100 along the in 6 illustrated cross-sectional plane KK, wherein, in contrast to the only parallel shifted cutting plane CC of the 4 In addition, the viewing direction was rotated by 180 °. So shows 7 in detail that in the context of a collection container 150 according to an embodiment next to the lead structure 200 as well as the previously shown retaining elements 240 can be implemented. So shows 7 a retaining element 240 the plurality of retaining elements in cross section. The retaining elements 240 each have one of the opening 180 facing section 330 on, the opposite to the surface normal 280 the opening 180 is inclined at an angle which is greater than 0 ° and less than 90 °. In the embodiment shown here, the angle is also about 60 °, whereby on the one hand the formation of the flow components parallel to the opening 180 is also supported, as well as a sliding of particles on the retaining elements 240 in the direction of the collection volume 190 , In this way, therefore, a negative influence on the degree of separation of the vortex separator can optionally be reduced, while the design of the retaining elements 240 with the sections 330 optionally the filling behavior 330 can be positively influenced. Of course, in other embodiments, the sections 330 also be provided at different angles than the 60 ° angle shown here. It is the same with the section 330 only an optional component, which may also be omitted.

The lead structures 200 furthermore each have a recess 340 at one of the opening 180 on the opposite side, which partially or completely over a width of the retaining elements 240 substantially perpendicular to its direction of alignment between its position and the opening 180 extends. The retaining elements 240 are, as not least already 3 and 6 have shown substantially rib-shaped, so that the alignment direction of the retaining elements 240 the orientation of the ribs corresponds. Because of the recesses 340 are provided, if necessary, a retention functionality of the retaining elements 240 be improved, as to the at the recess 340 forming edges in particular fibrous particles can easily catch. As a result, the re-sucking behavior can be further improved if necessary. Also the recesses 340 put as the retaining elements 240 generally optional components which may be omitted.

Before concluding in connection with the 8th and 9 with regard to their design of the 4 Similarly, a gas flow inside the collection volume 190 of the collection container 150 It will be useful to point out that embodiments of a collecting container 150 far from being limited to the variants presented here. So is the collection container shown here 150 previously always a removable or hinged lid 140 as a housing element 160 been considered. Of course, in other embodiments, other housing elements, such as a ceiling, a bottom surface or a side surface or side wall 230 of the collection container 150 be designed accordingly. In addition, other geometrical and technical boundary conditions can be found in other embodiments, by a corresponding adjustment of the guide structure 200 and possibly other components. Thus, many different arrangement and combination options may arise, due to different geometries of collection containers 150 as well as the arrangement and design of the opening 180 can result. For example, the size of the opening 180 , but also the size of the collection container 150 on the concrete implementation of lead structures 200 Influence. Likewise, ventilation data and composition of the sucked-in particles can be used to adapt the conductive structure 200 to advise on the appropriate conditions.

Although previously essentially a lead structure 200 on the basis of a largely planar guidance section 210 However, other guide structures may be used 200 be implemented. In this case, for example, instead of a just executed guide section 210 also a corrugated, or a differently shaped guide section can be used. Also, if necessary, the lead structure 200 be executed differently, so that there is a substantially non-planar executed, continuous guide section 210 results.

Embodiments of a collecting container 150 can thus enable an improvement of the degree of separation, in particular in the field of fine dust. Likewise, they can improve the filling of the collection container 150 and thereby allow longer Saugintervalle. By implementing the lead structure 200 and optionally the optional retaining elements 240 In addition, where appropriate, also a risk of the back suction of particles from the collecting container 150 For example, sucking back of hair and other fibrous particles can be reduced. So can a collection container 150 according to one embodiment, if necessary, implemented with the help of technically simple to implement techniques, possibly even cost-neutral, with an improvement in the coarse dirt separation already due to an optionally larger implementable opening 180 can be reached. Likewise, the lead structure 200 also contribute to a reduction in noise by turbulence in the collecting container 150 be reduced.

So shows 8th already in 4 shown cross-sectional view along the cutting plane CC through a collecting container 150 according to an embodiment. In 8th are two streams 350-1 and 350-2 shown by air flows, starting from the separation chamber 110 and the discharge channel 130 on the opening 180 to meet. At the entrance of the two currents 350-1 . 350-2 meet these on the lead structure 200 through which these a flow component parallel to the opening 180 receive. This is how the two streams become 350-1 . 350-2 on the in 8th right side wall 230-1 distracted. This is due to the different interaction of the two streams 350-1 . 350-2 these differ by the lead structure 200 affected. While the flow 350-2 in the area of the discharge channel 130 to the left of the flow 350-1 pass, exchange them due to the different interaction with the lead structure 200 inside the collection volume 190 So after passing the opening 180 and the lead structure 200 , their spatial arrangement. Due to the interaction with the sidewall 230 both keep their respective arrangements in the area of a floor section 360 in that both run essentially parallel to this.

The two streams 350-1 . 350-2 meet on one of the side wall 230-1 opposite side wall 230-2 where this is a local vortex 370 form. The vortex 370 runs in this case substantially perpendicular to a in 8th not shown vortex in the region of the separation chamber 110 ,

In contrast to this shows 9 one 8th comparable cross-section along the cross-sectional plane CC 4 but with the case 100 this vacuum cleaner's lead structure 200 is missing. As a result, one from the separation chamber 110 and the discharge channel 130 on the opening 180 appropriate flow 350 on the bottom section 360 of the collection container 150 forwarded where these from the sidewall 230-1 away on the second, the side wall 230-1 opposite side wall 230-2 is diverted. Although this also arises along the bottom section 360 a corresponding flow through which optionally particles along the bottom portion 360 be transported, the flow 350 However, due to the interaction with the sidewall 230-2 on the housing section 160 So the lid 140 , deflected where this in the opposite direction to the flow 350 in the area of the bottom section 360 to the opening 180 is transported back. There the flow can 350 the collection container 150 leave again. This results in comparison to the collecting container 150 according to an embodiment as shown in 8th shown is the risk of particles along with the flow 350 turn the collection container 150 leave. Also, optionally, for example, due to a higher flow rate, a uniformity of the deposition of the particles in the collecting volume 190 optionally behind a collection container 150 remain according to an embodiment.

A direct comparison of the two representations of the 8th and 9 thus illustrates that it is through the use of a lead structure 200 in the area of the opening 180 at a collecting container 150 according to an embodiment for improved filling of the collecting container 150 can lead. The lead structure 200 is therefore also referred to as diffuser rib or filling rib.

For a collection container 150 According to one embodiment of a vortex separator, which operates on the centrifugal principle, so can a vortex 370 at one of the opening 180 opposite side wall 230-2 be generated by in the area of the opening 180 a lead structure 200 implemented and provided, for example in the form of a wall or a rib in the collection volume 190 protrudes. In this way, if appropriate, a more even distribution of the particles in the collecting volume 190 be achieved, so that an existing volume can be filled more effectively and thus exploited. In addition or as an alternative, it is also possible hereby optionally to prevent the particles from being sucked back on, but at least made more difficult by, for example, removing them from the opening 180 is increased to the deposited particles.

For example, especially with empty or partially filled collection volumes 190 and at power changes of the respective suction gas stream through the use of the guide structure 200 the vortex 370 be generated, which connects the particles together. This can - as mentioned - the collection volume 190 of the collection container 150 possibly better utilized and / or a return transport of the already deposited particles in the separation chamber 110 be avoided more effectively back.

As has already been explained, the show in the 8th and 9 shown currents 350 likewise that the collecting container 150 can not be flowed through or is not flowed through during operation of the vortex separator. He thus has no further opening, which is designed such that during the vortex separator, the gas flow 350 in the collection container 150 can leave this again through the further opening.

In other words, the collecting container 150 formed such that during operation of the vortex separator, an incoming gas flow 350 the collection container 150 only through the opening again 180 can leave.

A collection container 150 According to one embodiment, such a compromise between a degree of separation and a Rücksaugverhalten a vortex separator and a filling behavior of its collection container 150 optionally improve by this causes a corresponding flow component. This can often be achieved inexpensively using simple structural measures.

The features disclosed in the foregoing description, the claims and the drawings may be of importance both individually and in any combination for the realization of the invention in its various forms.

LIST OF REFERENCE NUMBERS

100

 casing

110

 separating chamber

120

 port opening

130

 chute

140

 cover

150

 receptacle

160

 housing element

170

 outlet grill

180

 opening

190

 collection capacity

200

 lead compound

210

 guide section

220

 Edge of the case

230

 Side wall

240

 Retaining element

250

 stiffening rib

260

 extension direction

270

 Edge of the opening

280

 surface normal

290

 center

300

 Passage area

310

 connecting portion

320

 height

330

 section

340

 recess

350

 flow

360

 bottom section

370

 whirl

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1547509 A2 [0005]

Claims (15)

Collecting container ( 150 ) for collecting particles for a vortex separator, comprising: a housing element ( 160 ), which has a collection volume ( 190 ) of the collecting container ( 150 ) at least partially limited; and an opening ( 180 ) in the housing element ( 160 ), which is designed and arranged such that particles due to a in a separation chamber ( 110 ) of the vortex separator prevailing vortex through the opening ( 180 ) from the separation chamber ( 110 ) into the collecting volume ( 190 ) of the collecting container ( 150 ), wherein the housing element ( 160 ) a lead structure ( 200 ), which is designed in such a way that it passes through the opening ( 180 ) vertically entering gas flow at least partially a flow component parallel to the opening ( 180 ) causes. Collecting container ( 150 ) according to claim 1, wherein the lead structure ( 200 ) at least partially into a projection of the opening ( 180 ) along a surface normal ( 280 ) of the opening ( 180 ) extends into it. Collecting container ( 150 ) according to one of the preceding claims, in which the lead structure ( 200 ) has a substantially flat conductive section ( 210 ). Collecting container ( 150 ) according to one of the preceding claims, in which the lead structure ( 200 ) a lead section ( 210 ), which at an angle between 0 ° and 90 °, for example at least 15 ° and at most 75 °, to a surface normal ( 280 ) of the opening ( 180 ) is oriented. Collecting container ( 150 ) according to one of the preceding claims, in which the lead structure ( 200 ) a lead section ( 210 ) related to an edge ( 270 ) of the opening ( 180 ) completely into the collecting volume ( 190 ) is arranged offset into it. Collecting container ( 150 ) according to one of the preceding claims, in which the lead structure ( 200 ) immediately at an edge ( 270 ) of the opening ( 180 ) is arranged. Collecting container ( 150 ) according to one of the preceding claims, in which the conductive structure ( 200 ) exclusively along part of an edge ( 270 ) of the opening ( 180 ). Collecting container ( 150 ) according to one of the preceding claims, in which the lead structure ( 200 ) along an extension direction ( 260 ) of the opening ( 180 ) on one side of the opening ( 180 ) over a length of at least 5% of a length of the opening ( 180 ) along the direction of extension ( 260 ). Collecting container ( 150 ) according to one of the preceding claims, in which the lead structure ( 200 ) related to an edge ( 270 ) of the opening ( 180 ) along a surface normal ( 280 ) of the opening ( 180 ) into the collecting volume ( 190 ) at least 2% and at most 50% of a width of the opening ( 180 ) extends into it. Collecting container ( 150 ) according to one of the preceding claims, wherein the opening ( 180 ) to a center ( 290 ) of the collecting container ( 150 ) and in which the conductive structure ( 200 ) at one of the middle ( 290 ) facing edge portion of an edge ( 270 ) of the opening ( 180 ) is arranged. Collecting container ( 150 ) according to one of the preceding claims, in which the lead structure ( 200 ) at least 5 mm, but not more than 50 mm in the direction of the collecting volume ( 190 ) over a border ( 270 ) of the opening ( 180 protrudes). Collecting container ( 150 ) according to one of the preceding claims, in which the housing element ( 160 ) a ceiling, a bottom surface or a side surface of the collecting container or a lid ( 140 ) of the collecting container, for example a removable or hinged lid ( 140 ) of the collecting container ( 150 ) is. Collecting container ( 150 ) according to one of the preceding claims, which can not be flowed through and / or is not flowed through during operation of the vortex separator. Collecting container ( 150 ) according to one of the preceding claims, in which the lead structure ( 200 ) and the housing element ( 160 ) in one piece, and / or in which the lead structure ( 200 ) and the housing element ( 160 ) are made of a plastic, for example an injection-moldable plastic. Collecting container ( 150 ) according to one of the preceding claims, in which the housing element ( 260 ) a plurality of retaining elements ( 240 ) which extends over an edge ( 270 ) of the opening ( 180 ) into the collecting volume ( 190 ) and along at least part of the edge ( 270 ) of the opening ( 180 ) are arranged.

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