ARRANGEMENT OF COMPONENTS IN A VACUUM CLEANING DEVICE AND VACUUM CLEANING DEVICE

Description

[0001] The present invention relates to an arrangement of a turbine, a filter, and at least one filter cleaning unit in a vacuum cleaner, wherein the turbine, the filter, and the filter cleaning unit are arranged in a vacuum cleaner head of the vacuum cleaner. In particular, a targeted nesting of the vacuum cleaner components within the vacuum cleaner is provided, in which, in particular, the said vacuum cleaner components are arranged obliquely or tilted with respect to a horizontal plane. In a second aspect, the invention relates to a vacuum cleaner having a proposed arrangement of components in which individual components in the vacuum cleaner head of the vacuum cleaner form a triangle with one another.

[0002] Vacuum cleaners are known in the prior art, which are used in particular on construction sites to extract dust generated in connection with the use of machine tools, such as drilling or grinding equipment. Such so-called construction site vacuum cleaners usually comprise a vacuum head in an upper region and a collection container for the vacuumed dust in a lower region of the vacuum cleaner. Such vacuum cleaners are preferably also referred to as industrial vacuum cleaners within the meaning of the invention. In conventional construction site vacuum cleaners known from the prior art, the vacuum components, such as the turbine, motor, filter, filter cleaning unit, etc., are arranged essentially vertically and / or horizontally within the vacuum cleaner.The terms "horizontal" and "vertical" refer in particular to the side walls of the vacuum cleaner, with the terms "vertical arrangement" and "horizontal arrangement" meaning in particular that the vacuum components are arranged substantially parallel or perpendicular to the side walls of the vacuum cleaner. However, this vertical and / or horizontal arrangement of vacuum components within the vacuum cleaner may create unnecessary free space within the vacuum cleaner, because rigid arrangement specifications aligned with the side walls of the vacuum cleaner can create free spaces within the vacuum cleaner that are not optimally utilized. This represents a disadvantage, particularly when attempting to provide vacuum cleaners that are as compact, handy, and easy to transport as possible.

[0003] In addition, the rigid vertical or horizontal alignment of vacuum components can result in individual components having to be laboriously wired together if they are not optimally arranged within the vacuum device. This represents a potentially unnecessary expenditure of resources, which can make such a vacuum device prone to failure or lead to increased repair and / or maintenance costs. In addition, a rigid vertical or horizontal arrangement of vacuum components can lead to increased sealing costs. On the one hand, this can manifest itself in the need to use a complex sealing concept. But it can also result in increased material costs. Both effects are undesirable with regard to a vacuum device, as they can lead to increased wear and tear or additional weight and thus to an additional financial burden when operating the vacuum device.It has also been shown that conventional vacuum cleaners, in which the vacuum components are aligned vertically and / or horizontally with respect to the side walls, result in increased performance losses.

[0004] For example, US 9 265 393 B2 discloses a battery-operated vacuum cleaner with a battery cover that can be in an operating position and a closed position.

[0005] The object of the present invention is to solve the problems described above and to provide a vacuum cleaner in which the individual vacuum components are arranged in a space-saving manner. Sealing of the vacuum cleaner to be provided should be simple and uncomplicated. Furthermore, a vacuum cleaner that is powerful in relation to the size of the vacuum cleaner should be provided, which in particular allows for simple but effective air flow. It would also be desirable if the filter or a filter unit of the vacuum cleaner to be provided could be removed from the rear of the vacuum cleaner.

[0006] The object is thereby achieved by the subject matter of the independent claims. Advantageous embodiments of the subject matter of the independent claims can be found in the dependent subclaims.

[0007] The object is achieved by an arrangement of a turbine, a filter, and at least one filter cleaning unit in a vacuum cleaner, wherein the turbine, the filter, and the filter cleaning unit are arranged in a vacuum head of the vacuum cleaner. The arrangement is characterized in that the turbine, the filter, and the filter cleaning unit form a triangle in the vacuum head, wherein the turbine and / or the filter is / are tilted relative to a horizontal axis of the vacuum head of the vacuum cleaner. The triangle is particularly evident in a side view of the vacuum head of the vacuum cleaner. Preferably, the three aforementioned vacuum components form the corners of the triangle.The turbine and the filter cleaning unit preferably form a substantially horizontal upper edge of the triangle, with the turbine being arranged in a front region of the suction head of the vacuum cleaner device and the filter cleaning unit in a rear region. The resulting triangle is preferably a substantially right-angled triangle, the right angle of which is in the region of the filter cleaning device. The horizontal upper edge of the triangle, which is preferably arranged between the turbine and the filter cleaning unit, preferably represents one of the two legs of the substantially right-angled triangle. The second leg of the substantially right-angled triangle is preferably arranged between the filter cleaning unit and the filter, while the hypotenuse is located between a geometric center of gravity of the filter and a geometric center of gravity of the turbine.The triangle between the vacuum components is spanned in particular by the turbine being arranged substantially next to the filter cleaning unit, the filter being arranged substantially below the filter cleaning unit, and the turbine being arranged substantially diagonally above the filter. By arranging the vacuum components in a triangle, the invention departs from the prior art. In conventional vacuum cleaner devices known from the prior art, the aforementioned components are often arranged in a square configuration.

[0008] In particular, in the proposed component arrangement, the individual components are tilted relative to a horizontal and / or vertical axis of the vacuum cleaner head of the vacuum cleaner. In one embodiment of the invention, it is preferred that an imaginary first central axis through the filter of the vacuum cleaner forms a first angle of between 10 and 20 degrees with an imaginary horizontal plane, and an imaginary second central axis through the turbine of the vacuum cleaner forms a second angle of between 145 and 155 degrees with an imaginary horizontal plane. The aforementioned angles preferably enable the triangular arrangement of the vacuum cleaner components: turbine, filter cleaning unit, and filter.

[0009] The triangular arrangement of the suction components in the suction head of the vacuum cleaner preferably enables a compact design for the vacuum cleaner, in which a number of advantages are achieved through the targeted nesting of individual suction components. Firstly, the compact arrangement of the suction components, in particular the filter and the turbine, can reduce the number of parts to be installed in the vacuum cleaner. This can advantageously be achieved by a base plate of the suction head forming a central location at which the suction components can be arranged. The inclined position of the components in the above-mentioned angular ranges, which advantageously leads to the triangular arrangement of the suction components, preferably enables the advantageous, space-saving nesting of the components and the positioning of the components next to one another in the suction head.

[0010] This allows the proposed vacuum cleaning device to be designed and manufactured simply and is advantageously particularly low-maintenance. Furthermore, the efficiency of the vacuum cleaning device can be significantly increased because the vacuum cleaning device can be designed to be particularly compact and space-saving. This also makes it easier to handle and use. By deliberately tilting or slanting vacuum components, such as the turbine or filter, the available usable container volume can advantageously be increased, so that a larger amount of dust can be picked up and collected with the proposed vacuum cleaning device. A particular advantage of the proposed component arrangement for a vacuum cleaning device is that the filter of the vacuum cleaning device can be removed or replaced at the rear of the vacuum cleaning device.This enables optimized airflow within the vacuum cleaner. In particular, the improved airflow within the vacuum cleaner significantly reduces volume flow and pressure losses.

[0011] In the context of the proposed component arrangement, it is provided that the filter and the turbine are arranged tilted with respect to a horizontal plane. In other words, the aforementioned suction components are arranged at an angle within the suction head of the vacuum cleaning device. The inclination of the individual suction components is defined by an angle of inclination formed by an imaginary central axis through the suction component and an imaginary horizontal plane. The imaginary central axis through the filter is referred to in the sense of the invention as the first imaginary central axis of the vacuum cleaning device, while the imaginary central axis through the turbine is referred to as the second imaginary central axis of the vacuum cleaning device. Accordingly, the angle of inclination of the filter is referred to as the first angle.This first angle preferably lies in a range between 10 and 20 degrees, with inclination angle values ​​between 13 and 17 degrees, and particularly preferably 15 degrees, being particularly preferred for the filter. In other words, it is preferred that the first angle lies between 13 and 17 degrees, and particularly preferably 15 degrees. The corresponding first angle is shown in the . Figure 1 indicated. For the purposes of the invention, all values ​​between 10 and 20 degrees may be preferred, in particular the values ​​10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, and all rational and non-rational intermediate values. Furthermore, values ​​between 5 and 25 degrees may also be preferred, in particular 5, 6, 7, 8, 9 or 21, 22, 23, 24, or 25, as well as all rational and non-rational intermediate values.

[0012] Within the meaning of the invention, the magnitude of the angle of inclination is preferably determined according to the mathematical view by considering the horizontal plane as the positive x-axis of a Cartesian coordinate system and the axis through the filter or through the turbine as a leg or pointer, whereby the included angle between the x-axis and the leg preferably corresponds to the angle of inclination for the respective component. Those skilled in the art will recognize that the first imaginary central axis, which preferably runs centrally through the filter, lies in the first quadrant of such a Cartesian coordinate system, while the second imaginary central axis, which preferably runs centrally through the turbine, lies in the second quadrant of such a Cartesian coordinate system.

[0013] The turbine's angle of inclination is referred to as the second angle within the meaning of the invention. This angle preferably lies in a range between 145 and 155 degrees, with inclination angle values ​​between 148 and 152 degrees, and particularly preferably 150 degrees, being particularly preferred for the filter. In other words, it is preferred that the second angle lies between 148 and 152 degrees, and particularly preferably 150 degrees. If the x-axis described above is extended beyond the y-axis of the coordinate system into the second quadrant and this "negative x-axis" is used as the starting point for determining the size of the second inclination angle for the turbine, the result is a second inclination angle in a range of 25 to 35 degrees, preferably 28 to 32 degrees, and particularly preferably 30 degrees.For the purposes of the invention, all values ​​between 145 and 155 degrees may be preferred, in particular the values ​​145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, and all rational and non-rational intermediate values. Furthermore, values ​​between 140 and 160 degrees may also be preferred, in particular 140, 141, 142, 143, 144 or 156, 157, 158, 159, or 160, as well as all rational and non-rational intermediate values. This second angle, which is determined by the negative x-axis and the central axis through the turbine, is also indicated in Figure 1.

[0014] Thus, the suction components filter and turbine are not aligned horizontally or vertically with respect to the side walls of the suction head of the vacuum cleaner, but the said suction components assume an inclined position with respect to the outer walls of the vacuum cleaner by being tilted relative to the imaginary horizontal plane.

[0015] In the context of the present invention, the terms "horizontal" and "vertical" preferably refer to the side walls of the vacuum cleaner, which are usually oriented substantially perpendicular to the ground. The term "horizontal" in the sense of the invention preferably means that an object is arranged substantially parallel to the ground or substantially perpendicular to a side wall of the vacuum cleaner, while the term "vertical" in the sense of the invention preferably means that an object is arranged substantially perpendicular to the ground or substantially parallel to a side wall of the vacuum cleaner. A horizontal plane that can be conceptually drawn through the vacuum cleaner is thus an imaginary plane that runs substantially parallel to the earth's surface. In the sense of the invention, this preferably means that a straight line running in the imaginary horizontal plane forms an angle of approximately 0 degrees with the earth's surface.Minimal deviations from the Earth's surface in a range of 0 to 5 degrees are preferably described by the term "horizontal" within the meaning of the invention, since measurement inaccuracies can occur or because the Earth's surface is not always completely flat. For the purposes of the invention, it is preferable to assume an idealized, essentially flat Earth's surface.

[0016] A tilted or oblique arrangement of a suction component with respect to such a virtual horizontal plane preferably means, within the meaning of the invention, that an axis, which preferably runs as an imaginary central axis through the inclined or tilted suction component, forms an angle with the horizontal plane that is significantly greater than 0. This angle is referred to within the meaning of the invention as the "angle of inclination" of the corresponding suction component. In particular, the invention is thus characterized by an inclined position of the suction components, turbine and filter.

[0017] The turbine of the vacuum cleaner device is preferably configured to generate an air flow to extract the dust—for example, dust generated on a construction site. In particular, a negative pressure is generated in the vacuum cleaner device, which can be used to provide the extraction flow for extracting the dust.

[0018] In addition to the filter, which in the context of the present invention is inclined at an angle of 10 to 20 degrees relative to the horizontal, the vacuum cleaner device can have additional filters or filter elements. The tilted filter can also be referred to as a filter cassette or main filter within the meaning of the invention, whereby the filter cassette can now advantageously be removed from the rear of the proposed vacuum cleaner device thanks to the proposed compact design. The terms "front" and "rear" or "back" are not unclear to a person skilled in the art with regard to a vacuum cleaner device, because the person skilled in the art can recognize which is the front and which is the back of the vacuum cleaner device from the design and arrangement of the components of the vacuum cleaner device. For example, an operating display with buttons and operating elements can be provided on the front.

[0019] During operation of the vacuum cleaner, the filters can become clogged with dust. The proposed vacuum cleaner can therefore comprise a filter cleaning unit with which the filter or filter elements of the vacuum cleaner can be cleaned manually or automatically. Within the meaning of the invention, it is preferred that the turbine of the proposed vacuum cleaner is arranged next to this filter cleaning unit and that the filter is arranged below this filter cleaning unit. The inventors have recognized that this arrangement is particularly advantageous because it enables efficient cleaning of the filter through optimized alignment of the cleaning unit relative to the filter.

[0020] According to the invention, it is preferred that the filter cleaning unit is located directly above the filter, which, in a particularly preferred embodiment of the invention, is tilted by 15 degrees with respect to a horizontal plane of the vacuum cleaner device. In particular, this tilting considerably increases the container volume available for collecting dust, so that more dust can advantageously be collected in the collection container before it needs to be emptied. By increasing the time intervals between the required emptyings, the workers on a construction site can pursue other activities, so that the invention shortens construction times and enables employees on construction sites to be employed effectively.

[0021] The preferred inclination of the turbine by 30 or 150 degrees allows the turbine, filter, and filter cleaning unit to be integrated into the proposed vacuum cleaner in a particularly compact manner, i.e., with minimal free space between the components. In particular, this also allows the air flow, i.e., the flow of the suction flow within the vacuum cleaner, to be optimized in such a way that pressure losses—for example, during filter cleaning—or volume flow losses can be significantly reduced.

[0022] In a particularly preferred embodiment of the invention, the present invention is characterized by a compactness of the component arrangement by a relative arrangement of the components to one another.

[0023] The motor is preferably designed to drive the turbine. Furthermore, in this exemplary embodiment, the vacuum cleaning device has a filter cassette which is inclined by 15 degrees and can advantageously be removed on the clean room side of the vacuum cleaning device, although the filter cassette is arranged below the motor or the turbine of the vacuum cleaning device. The arrangement of one object below another object can mean, within the meaning of the invention, that the first object is arranged directly below the second object. However, it can also be preferred within the meaning of the invention that the first object is arranged laterally offset from the second object, i.e. is arranged diagonally below the second object. In particular, the invention enables simplified air guidance due to the preferred inclined motor position.In particular, this makes it possible to achieve a connection of the process air corridors, which preferably concerns the filtration area, the negative pressure area, the guide area and / or the positive pressure area of ​​the vacuum cleaner device.

[0024] In a further aspect, the invention relates to a vacuum cleaning device, wherein the vacuum cleaning device comprises an arrangement of components according to one or more of the preceding claims. The definitions, technical effects, and advantages of the invention described for the component arrangement apply analogously to the proposed vacuum cleaning device.

[0025] Further advantages of the invention will become apparent from the following description of the figures. Various embodiments of the present invention are illustrated in the figures. The figures, the description, and the claims contain numerous features in combination. Those skilled in the art will expediently consider the features individually and combine them into useful further combinations.

[0026] In the figures, identical and similar components are numbered with the same reference numerals. They show: Fig. 1View of a preferred embodiment of the invention Fig. 2View of a preferred embodiment of the invention Fig. 3View of a preferred embodiment of the invention Examples of implementation:

[0027] Figure 1 shows a preferred embodiment of the invention, in particular of the proposed vacuum cleaner device (1). In particular, Figure 1a section of the suction head (10) of the vacuum cleaner device (1). In the suction head (10), in particular, a turbine (2) and a filter (3) are provided as suction components. The filter (3) can, for example, be designed as a filter cassette. It may further be preferred that the filter (3) or the filter cassette comprises filter elements. In addition, the vacuum cleaner device (1) can have a filter cleaning unit (9) with which the filter (3) or the filter elements can be cleaned at regular or irregular intervals. In the Figure 1 In the illustrated embodiment of the invention, the turbine (2) is arranged in the suction head (10) of the vacuum cleaner (1) next to the filter cleaning unit (9). The filter cleaning unit (9) is arranged above the filter (3) in the suction head (10).

[0028] In particular, the three components filter (3), turbine (2) and filter cleaning unit (9) form a triangle in the vacuum head (10), which is particularly evident in the side view of the vacuum cleaner device (1). The position of the triangle in relation to the vacuum components (2, 3, 9) is shown in Figure 2which shows a vacuum cleaning device (1) with a suction head (10). An acute angle of the triangle is present in the region of the turbine (2) in the front region of the suction head (10) of the stick vacuum device (1). The turbine (2) can preferably be arranged tilted relative to a horizontal and / or vertical axis of the suction head (10) of the stick vacuum device (1), wherein this angle can be 30 degrees, for example. The turbine (2) and the filter cleaning unit (9) of the stick vacuum device (1) can preferably be located on a horizontal axis within the suction head (10). In the side view of the stick vacuum device (1), the filter cleaning unit (9) preferably forms a right upper corner of the spanning triangle, wherein in this corner there is in particular a right angle or a substantially right angle of the spanning triangle.The filter (3) is preferably located below the filter cleaning unit (9), so that the filter (3) and the filter cleaning unit (9) preferably form a vertical axis within the suction head (10).

[0029] Shown are Figure 1 also the imaginary virtual axes (4, 6), inclination angles (5, 7) and planes (8). In particular, Figure 1the first central axis (4), which preferably runs centrally through the filter (3). The first central axis (4) forms a first angle of inclination (5) with a virtual horizontal axis (8), which can be present at different heights in the vacuum head and runs essentially parallel to the earth's surface or the ground on which the vacuum cleaning device (1) is installed. Furthermore, the imaginary horizontal axis (8) runs essentially parallel to a preferably essentially flat cover plate of the vacuum cleaning device (1). The virtual horizontal axis (8) can be regarded as the positive x-axis of a Cartesian coordinate system, wherein this positive x-axis, together with the first central axis (4), forms the first angle of inclination (5), which is preferably assigned to the filter (3) and preferably defines the inclined position of the filter (3). In a particularly preferred embodiment of the invention, the first angle of inclination (5) is 15 degrees.

[0030] Furthermore, Figure 1 the inclination of the turbine (2), which is preferably driven by a motor. The inclination of the turbine (2) is preferably determined by the second inclination angle (7), which is formed by the second central axis (6), which runs through the turbine (2), and the horizontal axis (8). Depending on the side from which the second inclination angle (7) is measured, it is 30 or 150 degrees in a particularly preferred embodiment of the invention. Figure 1 In the embodiment shown, the arrow with the reference number 7 points to the second angle of inclination, which in a particularly preferred embodiment of the invention can be 150 degrees, for example.

[0031] Figure 3 shows a preferred embodiment of the proposed vacuum cleaner device (1). In particular, Figure 3how the suction components (2, 3, 9) can be arranged in the vacuum cleaner device (1), in particular the suction head (10). Figure 3 In the embodiment shown, the arrow with the reference number 7 points to the second angle of inclination, which in a particularly preferred embodiment of the invention can be 30 degrees, for example. List of reference symbols

[0032] 1Vacuum cleaner 2Turbine 3Filter 4First imaginary central axis 5First angle of inclination 6Second imaginary central axis 7Second angle of inclination 8Imaginary horizontal plane 9Filter cleaning unit 10Vacuum cleaner head

Claims

1. Arrangement comprising a turbine (2), a filter (3) and at least one filter cleaning unit (9) in a vacuum cleaning device (1), wherein the turbine (2), the filter (3) and the filter cleaning unit (9) are arranged in a vacuum cleaner head (10) of the vacuum cleaning device (1), characterized in that the turbine (2), the filter (3) and the filter cleaning unit (9) in the vacuum cleaner head (10) form a triangle, wherein the turbine (2) and / or the filter (3) are / is tilted relative to a horizontal axis (8) of the vacuum cleaner head (10) of the vacuum cleaning device (1).

2. Arrangement according to Claim 1, characterized in that the turbine (2) is arranged adjacent to the filter cleaning unit (9).

3. Arrangement according to Claim 1 or 2, characterized in that the filter (3) is arranged below the filter cleaning unit (9).

4. Arrangement according to one of the preceding claims, characterized in that the turbine (2) is arranged obliquely above the filter (3).

5. Arrangement according to one of the preceding claims, characterized in that the filter (3) and the horizontal axis (8) enclose a first slope angle (5), wherein the first slope angle (5) is in a range of 10 to 20 degrees.

6. Arrangement according to one of the preceding claims, characterized in that the turbine (2) and the horizontal axis (8) enclose a second slope angle (7), wherein the second slope angle (7) is in a range of 145 to 155 degrees.

7. Vacuum cleaning device (1), characterized in that the vacuum cleaning device (1) has an arrangement comprising a turbine (2), a filter (3) and at least one filter cleaning unit (9) according to one or more of the preceding claims.