Filter cleaning
阅读说明:本技术 过滤器清洁 (Filter cleaning ) 是由 O·奥伦多尔夫 于 2018-06-20 设计创作,主要内容包括:一种用于吸尘器的过滤器装置,所述过滤器装置具有涡轮机装置以及控制单元,所述涡轮机装置用于产生穿过吸尘器的至少一个部分区域的至少一个第一和第二主空气流。所述过滤器装置包括:第一腔室,具有第一过滤器元件、第一流出开口、第一输送开口和第一压力冲击元件,所述第一压力冲击元件将第一腔室划分为第一空间和第二空间并且能够在第一位置与第二位置之间可逆地运动;其中,所述第一主空气流能够穿过第一过滤器元件流入第一腔室的第一空间中,并且又能够从第一流出开口流出;第二腔室,具有第二过滤器元件、第二流出开口、第二输送开口和第二压力冲击元件,所述第二压力冲击元件将第二腔室划分为第一空间和第二空间并且能够在第一位置与第二位置之间可逆地运动,其中,所述第二主空气流能够穿过第二过滤器元件流入第二腔室的第一空间中,并且又能够从第二流出开口流出;其中,第一流出开口和第一过滤器元件定位在第一腔室的第一空间上,使得能由第一主空气流产生的负压使第一压力冲击元件运动到第一位置中,而第二流出开口和第二过滤器元件定位在第二腔室的第一空间上,使得能由第二主空气流产生的负压使第二压力冲击元件运动到第一位置中;其中,第一输送开口定位在第一腔室的第二空间上,使得通过输送开口作用到第一腔室的第二空间上的大气压使第一压力冲击元件运动到第二位置中,由此冲击由第一压力冲击元件传递到第一过滤器元件上,以用于对第一过滤器元件进行击打式清洁,并且第二输送开口定位在第二腔室的第二空间上,使得通过第二输送开口作用到第二腔室的第二空间上的大气压使第二压力冲击元件运动到第二位置中,由此冲击由第二压力冲击元件传递到第二过滤器元件上,以用于对第二过滤器元件进行击打式清洁,并且其中,第一压力冲击元件和第二压力冲击元件能够交替地从第一位置可逆地运动到第二位置中,以用于交替地清洁第一和第二过滤器元件。(A filter device for a vacuum cleaner has a turbine device for generating at least one first and second primary air flow through at least one partial region of the vacuum cleaner, and a control unit. The filter device includes: a first chamber having a first filter element, a first outflow opening, a first delivery opening and a first pressure impact element which divides the first chamber into a first space and a second space and is reversibly movable between a first position and a second position; wherein the first primary air flow is flowable through the first filter element into the first space of the first chamber and flowable out of the first outflow opening; a second chamber having a second filter element, a second outflow opening, a second delivery opening and a second pressure impact element which divides the second chamber into a first space and a second space and which is reversibly movable between a first position and a second position, wherein the second primary air flow can flow through the second filter element into the first space of the second chamber and can flow out of the second outflow opening; wherein the first outflow opening and the first filter element are positioned on the first space of the first chamber such that a negative pressure, which can be generated by the first primary air flow, moves the first pressure impact element into the first position, and the second outflow opening and the second filter element are positioned on the first space of the second chamber such that a negative pressure, which can be generated by the second primary air flow, moves the second pressure impact element into the first position; wherein the first delivery opening is positioned on the second space of the first chamber such that atmospheric pressure acting on the second space of the first chamber through the delivery opening moves the first pressure impact element into the second position, whereby impacts are transferred by the first pressure impact element onto the first filter element for impact cleaning of the first filter element, and the second delivery opening is positioned on the second space of the second chamber such that atmospheric pressure acting on the second space of the second chamber through the second delivery opening moves the second pressure impact element into the second position, whereby impacts are transferred by the second pressure impact element onto the second filter element for impact cleaning of the second filter element, and wherein the first pressure impact element and the second pressure impact element are alternately reversibly movable from the first position into the second position, for alternately cleaning the first and second filter elements.)
1. A filter device (2) for a vacuum cleaner (1), having a turbine device (6) for generating at least one first and second main air flow (8a, 8b) through at least one partial region of the vacuum cleaner (1), and having a control unit (7), characterized in that,
-a first chamber (11a) having a first filter element (22a), a first outflow opening (12a), a first delivery opening (25a) and a first pressure impact element (14a) which divides the first chamber (11a) into a first and a second space (23a, 24a) and is reversibly movable between a first position and a second position, wherein the first primary air flow (8a) is flowable through the first filter element (22a) into the first space (23a) of the first chamber (11a) and is flowable out of the first outflow opening (12 a);
-a second chamber (11b) having a second filter element (22b), a second outflow opening (12b), a second delivery opening (25b) and a second pressure impact element (14b) which divides the second chamber (11b) into a first and a second space (23b, 24b) and which is reversibly movable between a first position and a second position, wherein the second primary air flow (8b) can flow through the second filter element (22b) into the first space (23b) of the second chamber (11b) and can flow out of the second outflow opening (12 b);
-wherein the first outflow opening (12a) and the first filter element (22a) are positioned on the first space (23a) of the first chamber (11a) such that the negative pressure, which can be generated by the first primary air flow (8a), moves the first pressure impact element (14a) into the first position, while the second outflow opening (12b) and the second filter element (22b) are positioned on the first space (23b) of the second chamber (11b) such that the negative pressure, which can be generated by the second primary air flow (8b), moves the second pressure impact element (14b) into the first position;
-wherein the first delivery opening (25a) is positioned on the second space (24a) of the first chamber (11a) such that atmospheric pressure acting on the second space (24a) of the first chamber (11a) through the delivery opening (25a) moves the first pressure impact element (14a) into the second position, whereby an impact is transferred by the first pressure impact element (14a) onto the first filter element (22a) for impact cleaning of the first filter element (22a), and the second delivery opening (25b) is positioned on the second space (24b) of the second chamber (11b) such that atmospheric pressure acting on the second space (24b) of the second chamber (11b) through the second delivery opening (25b) moves the second pressure impact element (14b) into the second position, whereby an impact is transferred by the second pressure impact element (14b) onto the second filter element (22b), for impact cleaning of the second filter element (22b), and wherein the first pressure impact element (14a) and the second pressure impact element (14b) are alternately reversibly movable from a first position into a second position for alternately cleaning the first and second filter elements (22a, 22 b).
2. A filter device (2) according to claim 1, wherein the alternating reversible movement of the first and second pressure impact elements from the first position into the second position is regulated by a control unit.
3. A filter device (2) as claimed in claim 1 or 2, wherein the first delivery line comprises a first valve and the second delivery line comprises a second valve, wherein the first delivery opening can be brought into communication with the ambient air by means of the first delivery line and the second delivery opening can be brought into communication with the ambient air by means of the second delivery line, and wherein the first delivery line can be closed off by means of the first valve and the second delivery line can be closed off by means of the second valve.
4. A filter device (2) according to at least one of claims 1 to 3, characterised by comprising a first non-return element and a second non-return element, wherein the first pressure impulse element can be held in the first position by the first non-return element and the second pressure impulse element can be held in the first position by the second non-return element.
5. A filter device (2) according to claim 4, wherein the first and/or second non-return element is configured in the form of a spring.
6. A filter device (2) according to claim 4, wherein the first and/or second non-return element is configured in the form of a magnet.
7. A filter device (2) according to claim 1, comprising a first connection channel and a second connection channel, wherein the first connection channel connects the turbine device with the first delivery line for increasing the air pressure in the second space of the first chamber by means of the turbine device, and wherein the second connection channel connects the turbine device with the second delivery line for increasing the air pressure in the second space of the second chamber by means of the turbine device.
Technical Field
The invention relates to a filter device for a vacuum cleaner, comprising a turbine device for generating at least one first and second main air flow through at least one partial region of the vacuum cleaner, and a control unit.
Background
Suction cleaners are commonly used on construction sites to suck dirt particles in the form of dust, drill cuttings and the like.
In order to collect dust, a negative pressure is generated in the interior of the vacuum cleaner by means of the turbine. The vacuum is used to suck the dirt particles and to convey them into a collecting container of the vacuum cleaner via a hose connected to the vacuum cleaner. Commercial vacuum cleaners are usually constructed such that the turbine, the filter, the collecting container and the inlet opening for the sucked-in dirt particles are located one behind the other or in the flow path. It is important here that the filter is positioned between the collecting container or the inlet opening for the sucked-in dirt particles and the turbine which generates the negative pressure. The filter serves to clean the air taken in and thus in particular to protect the turbine, since the air taken in, which is rich in dirt particles, will flow through the turbine and thus contaminate or damage the turbine.
However, the problems that arise here are: the filter can no longer perform a sufficient filtering function and the sucked-in dirt housing can no longer be filtered out of the air flowing through the filter. This is particularly the case when the filter becomes increasingly dirty, i.e. filled with dirt particles, due to prolonged use of the cleaner. In order to maintain the function of the filter, the filter must be cleaned and the received dirt particles removed during this time. However, in order to clean the filter, the vacuum cleaner must be switched off, opened, and the filter withdrawn for removing the received dirt particles. However, such activities interrupt the dust extraction process and are very time consuming.
According to the prior art, there are also vacuum cleaners which have a device for cleaning the filter, without having to switch the filter off, open and remove it for removing the received dirt particles. However, this device has the disadvantage that the cleaning process must also be interrupted during cleaning of the vacuum cleaner. This also lengthens the work performed with the vacuum cleaner.
Disclosure of Invention
It is therefore an object of the present invention to solve the above-mentioned problems and to provide an improved filter device for a vacuum cleaner, by means of which the suction process is not interrupted during cleaning of the filter and which therefore means a time saving for the user of the vacuum cleaner.
This object is achieved by the solution of independent claim 1. Advantageous embodiments of the subject matter according to the invention are contained in the dependent claims.
The object is achieved by a filter device for a vacuum cleaner, having a turbine device for generating at least one first and second main air flow through at least one partial region of the vacuum cleaner, and a control unit.
According to the invention, the filter device comprises: a first chamber having a first filter element, a first outflow opening, a first delivery opening and a first pressure impact element which divides the first chamber into a first space and a second space and is reversibly movable between a first position and a second position; wherein the first primary air flow is flowable through the first filter element into the first space of the first chamber and flowable out of the first outflow opening; a second chamber having a second filter element, a second outflow opening, a second delivery opening and a second pressure impact element which divides the second chamber into a first space and a second space and which is reversibly movable between a first position and a second position, wherein the second primary air flow can flow through the second filter element into the first space of the second chamber and can flow out of the second outflow opening; wherein the first outflow opening and the first filter element are positioned on the first space of the first chamber such that a negative pressure, which can be generated by the first primary air flow, moves the first pressure impact element into the first position, and the second outflow opening and the second filter element are positioned on the first space of the second chamber such that a negative pressure, which can be generated by the second primary air flow, moves the second pressure impact element into the first position; wherein the first delivery opening is positioned on the second space of the first chamber such that atmospheric pressure acting on the second space of the first chamber through the delivery opening moves the first pressure impact element into the second position, whereby impacts are transferred by the first pressure impact element onto the first filter element for impact cleaning of the first filter element, and the second delivery opening is positioned on the second space of the second chamber such that atmospheric pressure acting on the second space of the second chamber through the second delivery opening moves the second pressure impact element into the second position, whereby impacts are transferred by the second pressure impact element onto the second filter element for impact cleaning of the second filter element, and wherein the first pressure impact element and the second pressure impact element are alternately reversibly movable from the first position into the second position, for alternately cleaning the first and second filter elements.
Thus, the suction process is not interrupted during cleaning of the filter, and the user can continue to suck in dirt particles with the vacuum cleaner.
According to an advantageous embodiment of the invention, it is possible that the alternating, reversible movement of the first and second pressure-percussion elements from the first position into the second position is regulated by a control unit. Thereby enabling the number or frequency of intervals for cleaning the filter to be accurately controlled.
According to a further alternative embodiment, a sensor for measuring the air flow can be contained in the first space of the first chamber and/or of the second chamber, by means of which sensor the degree of contamination of the respective filter can be determined. The sensors are connected to the control unit and send corresponding signals to the control unit regarding the degree of contamination of the respective filter. The control unit also contains a logic unit and/or a look-up table, by means of which the degree of contamination of the respective filter can be interpreted and, if necessary, the respective filter can be cleaned immediately.
According to a further advantageous embodiment of the invention, it is possible that the first delivery line comprises a first valve and the second delivery line comprises a second valve, wherein the first delivery opening can be connected to the ambient air via the first delivery line and the second delivery opening can be connected to the ambient air via the second delivery line, and wherein the first delivery line can be closed off by the first valve and the second delivery line can be closed off by the second valve. In this way, a connection from the respective second space of the first or second chamber to the ambient air of the vacuum cleaner, and thus to the atmospheric pressure ratio, can be produced in a simple manner and manner.
In this case, it is possible for the first and/or second valve to be connected to a control unit, so that the control unit can control or regulate the first and/or second valve or the through-flow opening of the first and/or second valve.
Thereby, the first and/or second valve can be controlled centrally and individually via the control unit.
According to a further advantageous embodiment of the invention, it is possible to include a first and a second non-return element, wherein the first pressure-impacting element can be held in the first position by the first non-return element, and the second pressure-impacting element can be held in the first position by the second non-return element. It is possible here for the first non-return element to be positioned in the second space of the first chamber and for the second non-return element to be positioned in the second space of the second chamber.
The retaining force for the respective pressure-percussion element is generated by the non-return element, so that a higher air pressure can be built up in the respective second space of the first or second chamber through the respective delivery line before the pressure-percussion element moves from the first position into the second position. Depending on the retaining force selected for the non-return element, the impact generated by the pressure impact element, which acts on the respective filter element for cleaning, can also be increased. The cleaning is also improved by the increased impact.
According to a further advantageous embodiment of the invention, it is possible for the first and/or second non-return element to be configured in the form of a spring. This enables a simple realization of the non-return element. The spring may be designed here in the form of a pressure spring which is positioned in the first space and presses the pressure percussion element in one direction. Furthermore, the spring may also be designed in the form of a tension spring which is positioned in the second space and pulls the pressure-percussion element in one direction.
According to a further advantageous embodiment of the invention, it is possible for the first and/or second non-return element to be designed in the form of a magnet. In this way, an almost maximum pressure can be generated in the second space in a simple manner and manner before the corresponding pressure-percussion element is moved in a striking manner from the first position into the second position. The impact generated by the pressure impact element for cleaning the filter element is therefore almost maximal.
According to a further advantageous embodiment of the invention, it is possible to include a first and a second connecting channel, wherein the first connecting channel connects the turbine device with the first supply line in order to increase the air pressure in the second space of the first chamber by means of the turbine device, and wherein the second connecting channel connects the turbine device with the second supply line in order to increase the air pressure in the second space of the second chamber by means of the turbine device. As a result, a negative pressure can be generated in the respective second space by means of the turbine device in order to move the pressure percussion element from the second position back into the first position more quickly.
According to a further advantageous embodiment of the invention, the connecting channel can be controlled or regulated via a valve. The control or regulation is performed by a control unit.
Furthermore, a first pressure sensor connected to the control unit is contained in the second space of the first chamber, and a second pressure sensor connected to the control unit is contained in the second space of the second chamber, by means of which first and second pressure sensors the air pressure in the respective second spaces can be measured. Thereby, the air pressure value in the respective second space is communicated to the control unit, so that said control unit opens or further opens the first and/or second valve to increase the air pressure. Alternatively, the control unit can thereby cause air pressure to flow from the turbine device into the respective second space via the first and/or second connecting channel. The control unit is connected to the turbine device for this purpose.
Drawings
Other advantages are derived from the following description of the figures. In which different embodiments of the invention are shown. The figures, description and claims contain a number of combinations of features. It is also appropriate for the person skilled in the art to consider the features individually and to combine the features in meaningful further combinations.
In the drawings, the same and similar components are denoted by the same reference numerals.
Here, there are shown:
figure 1 shows a schematic side view of a vacuum cleaner having a filter device according to the invention according to a first embodiment;
figure 2 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to a first embodiment, wherein the first and second pressure impact elements are in the first position and the first and second valves are closed;
figure 3 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to a first embodiment, wherein the first and second pressure impact elements are in a first position, while the first valve is open and the second valve is closed;
figure 4 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to the first embodiment, wherein the first pressure impact element is located between the first and the second position;
figure 5 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to the first embodiment, wherein the first pressure impact element is in the second position such that the first filter element is cleaned;
figure 6 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to the first embodiment, wherein the first and second valves are closed and the first pressure impact element is moved from the second position into the first position;
figure 7 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to the first embodiment, wherein the first and second valves are closed and the first and second pressure impact elements are in the first position;
figure 8 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to the first embodiment, wherein the second valve is opened and the second pressure impact element is located between the first and the second position;
figure 9 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to the first embodiment, wherein the second pressure impact element is in the second position such that the second filter element is cleaned;
figure 10 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to the first embodiment, wherein the first and second valves are closed and the second pressure impact element is moved from the second position into the first position;
figure 11 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to the first embodiment, wherein the first and second valves are closed and the first and second pressure impact elements are in the first position;
figure 12 shows another schematic side view of a vacuum cleaner with a filter device according to the invention according to the first embodiment, wherein the first pressure impact element is in the second position such that the first filter element is cleaned;
figure 13 shows another schematic side view of a vacuum cleaner having a filter device according to the invention, according to a second embodiment;
figure 14 shows another schematic side view of a vacuum cleaner having a filter device according to the invention, according to a third embodiment;
figure 15 shows another schematic side view of a vacuum cleaner having a filter device according to the invention according to a fourth embodiment;
figure 16 shows a schematic side view of a vacuum cleaner having a filter device according to the invention, according to a fifth embodiment;
figure 17 shows another schematic side view of a vacuum cleaner having a filter device according to the invention, according to a fifth embodiment;
Detailed Description
Fig. 1 to 12 show a vacuum cleaner 1 having a filter device 2 according to the invention according to a first embodiment.
The cleaner 1 comprises mainly a
The
The
The collecting container 4 is mainly constituted by a
A first end of the cleaner hose can be connected to the
The filter device 2 comprises a first chamber 11a and a second chamber 11 b. Both the first chamber 11a and the second chamber 11b have a cylindrical shape. However, it is also possible that the first chamber 11a and/or the second chamber 11b have any other possible shape.
The first chamber 11a mainly comprises a
The first 14a and the second 14b pressure percussion elements are basically constructed in the form of pistons with circular diameters and
The first chamber 11a and the second chamber 11b also contain a
The
It is to be noted that the
As already explained above, the first
The
The second inflow opening 15B is located in the direction B in the second chamber 11B and serves to releasably receive the second filter element 22B again. The second
As has also been explained above, the second
Furthermore, the
As described in detail below, the values of the first
Furthermore, the
When the vacuum cleaner 1 is in a normal suction state, in which air is sucked in by means of the two
As shown in fig. 3, a certain layer of sucked-in dirt particles SP forms on the
By now there being a higher pressure in the
It is to be noted here that the first
After the layer of dirt particles SP has fallen from the
Fig. 7 shows a state in which the
The striking movement of the second pressure-
Subsequently, the
As shown in fig. 12, the cleaning process of the
The
Fig. 13 shows a filter device 2 according to a second embodiment. The filter device 2 according to the second embodiment corresponds here essentially to the filter device 2 according to the first embodiment. Unlike the first embodiment, the filter device 2 according to the second embodiment comprises a first
Fig. 14 shows a filter device 2 according to a third embodiment. The
Fig. 15 shows a filter device 2 according to a fourth embodiment. The filter device 2 according to the fourth embodiment substantially corresponds to the filter device 2 according to the first embodiment. Unlike the first embodiment, the filter device 2 according to the fourth embodiment comprises a first and a second connection channel 33a, 33 b. The first connecting channel 33a connects the
Fig. 16 and 17 show a filter device 2 according to a fifth embodiment. Unlike the filter devices 2 according to the other embodiments, i.e., the first to fourth embodiments, in the filter device 2 according to the fifth embodiment, neither the first
According to a further embodiment, which is not shown in the figures, it is furthermore possible that the second, third and fourth embodiments can also be combined with one another.
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