EP4125523A1 - Bedarfsgerechte filterabreinigung - Google Patents
Bedarfsgerechte filterabreinigungInfo
- Publication number
- EP4125523A1 EP4125523A1 EP21713039.2A EP21713039A EP4125523A1 EP 4125523 A1 EP4125523 A1 EP 4125523A1 EP 21713039 A EP21713039 A EP 21713039A EP 4125523 A1 EP4125523 A1 EP 4125523A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- filter
- vacuum cleaner
- pulses
- vacuum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/20—Means for cleaning filters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
Definitions
- the present invention relates to a method for controlling filter cleaning in a vacuum cleaning device, wherein the vacuum cleaning device comprises at least one filter that is cleaned regularly and wherein the filter cleaning comprises cleaning processes with individual cleaning pulses.
- a basic idea on which the proposed method is based is that an intensity of the cleaning processes can be set as a function of a state of the filter of the vacuum cleaner device. This can be achieved, for example, by a variable duration of a cleaning pulse and / or a variable number of cleaning pulses per cleaning process.
- the proposed method enables particularly needs-based and efficient filter cleaning, in which the state of contamination or the aging of the filter in the vacuum cleaner can be taken into account.
- the invention relates to a vacuum cleaning device with which the proposed method can be carried out.
- the vacuum cleaner device can include, for example, a suitable sensor system for detecting the state of the filter, as well as a control device.
- the negative pressure in the vacuum cleaning device which is used to suck in the dust, is usually reduced, so that the sucking in of the dust is briefly interrupted and the filter is cleaned.
- the filter cleaning takes place in various construction vacuum cleaners by means of a brief backwash through the filter. This means that a brief reversal of the flow in the flow lines of the vacuum cleaner means that for a short time an air flow can flow against the normal operating flow direction. Dust particles or a filter cake that may have formed on the filter can be loosened or removed by this countercurrent flow.
- Backwashing is based on a pressure gradient that builds up across the filter during normal operation.
- the sudden actuation of a flap and / or opening in a flow line of the vacuum cleaner in the area of the suction turbine causes a brief reversal of the direction of flow through the filter during cleaning.
- the mentioned flap and / or opening in a flow line of the vacuum cleaner is preferably referred to as a “valve” in the context of the present invention.
- a disadvantage of filter cleaning by air backwashing is a pressure surge in the suction system caused by the air backwashing, which inevitably arises and impairs the suction and thus the main function of the vacuum cleaner.
- Another disadvantage that is known in connection with such a pressure surge is that a cloud of dust can be blown out of the vacuum cleaner.
- such a cloud of dust is created even with sufficient throttling of the suction flow through a strong reduction in the negative pressure that is present in the vacuum cleaner in order to suck in the dust.
- Such an undesirable discharge of dust in the form of a dust cloud is to be avoided with the present invention.
- the filter cleaning process is usually designed in such a way that regularly recurring time intervals are stored or defined in the vacuum cleaner or in a control unit of the vacuum cleaner, in which the filter cleaning is carried out automatically.
- cleaning cycles are carried out at regular, constantly long time intervals.
- the opening times of the valves are constant or fixed by the manufacturer.
- the intervals between two individual pulses during a cleaning process are the same or essentially the same length.
- the disadvantage of the filter cleaning methods known from the prior art with fixed time schedules is that the filter wear or the degree of contamination of the filter is not taken into account when initiating the filter cleaning process, so that a significant factor in achieving a high cleaning quality is not included in the control of the cleaning. As a result, it can happen that cleaning takes place at unsuitable times. This means that the filter cleaning is carried out too early and therefore too often or too seldom and therefore after a maximum quality with regard to the suction power has been exceeded. Too frequent cleaning is disadvantageous because the vacuum in the vacuum cleaner has to be reduced during cleaning, which causes a short-term, undesirable interruption of the dust intake. This can have a detrimental effect on the suction power of the Staubsaugvorrich device.
- the object of the present invention is to solve the problems described above and to provide a method for controlling a filter cleaning in a vacuum cleaning device, with which a needs-based filter cleaning is made possible and in which the design of a cleaning process taking into account the contamination of the filter it follows.
- the invention is intended to reduce or even completely compensate for the pressure surge problem described above.
- a further object of the invention is to provide a vacuum cleaner device which is set up to implement a filter cleaning that is tailored to requirements, in which a degree of soiling of the vacuum cleaner filter can be taken into account when the filter cleaning is carried out.
- the object is achieved by a method for controlling filter cleaning in a vacuum cleaning device, the vacuum cleaning device comprising at least one filter which is cleaned regularly, the filter cleaning comprising individual cleaning processes.
- the method is characterized in that an intensity of the Abcurisvorgän ge is set as a function of a state of the filter of the vacuum cleaner.
- the intensity of the cleaning processes be set in that cleaning pulses of the cleaning processes include time lengths ti which are set as a function of a state of the filter of the vacuum cleaner.
- each cleaning process comprises n cleaning pulses, each cleaning pulse having a time length ti.
- the time length ti of the cleaning pulses per cleaning process can preferably be set as a function of a state of the filter of the vacuum cleaner device.
- a number n of cleaning pulses per cleaning process can be set as a function of a state of the filter of the vacuum cleaner device.
- the length ti of the cleaning pulses and their number n per cleaning process can be set independently of one another. In other words, it is preferred, for example, that successive cleaning processes 2, 4, 3, 5 and again 3 cleaning impulses have.
- the cleaning pulses can be 20, 58, 35,
- any preferred number n per cleaning process can be combined with any preferred pulse length ti.
- the cleaning pulses each have an individual time length ti.
- the length of time ti preferably corresponds to the duration that a cleaning pulse takes, in other words the time span that a cleaning pulse lasts. It can therefore preferably also be referred to as the «pulse length».
- a cleaning pulse i preferably has a duration ti, for example a first cleaning pulse having a duration t1, while a second cleaning pulse has a duration t2, etc.
- the letter "i" can be understood as an index for a period t .
- a cleaning process consists of several cleaning pulses, each of which is triggered by actuation of the valve.
- the intervals between the individual cleaning processes can, for example, be in a range of around 15 s. However, other, shorter as well as longer, distances are also conceivable.
- the intervals between the individual cleaning processes can also be set as a function of a state of the filter of the vacuum cleaner device.
- the intervals between the individual cleaning processes preferably represent pauses between the cleaning processes in which normal suction operation of the vacuum cleaner device can take place.
- the cleaning pulses lead to the undesired pressure surges, the effects of which are advantageously compensated or minimized with the present invention.
- the temporal length ti and / or a number n of cleaning pulses per cleaning process can be set as a function of a state of the filter of the vacuum cleaner, so that the intensity of a cleaning process to the respective state of the vacuum cleaner or its filter is customizable.
- the proposed procedure enables the time length ti to be kept particularly short.
- the number of cleaning impulses can be kept as low as possible in order to also keep the number of pressure surges, which are undesirable per se, which can be caused by the cleaning impulses, as low as possible. Tests have shown that unnecessary excess cleaning can be avoided particularly effectively with the proposed method.
- the filter cleaning can be designed to be particularly needs-based and therefore efficient, so that the filter cleaning or its intensity can be optimally adapted to the requirements of the current suction operation of the vacuum cleaner device.
- an adaptive characteristic adjustment of filter cleaning during a cleaning process in a Staubsaugvor direction can be made possible with the invention.
- a pressure level above and below the filter or a pressure level in the direction of flow before and after the filter of the vacuum cleaner is determined and used as the basis for setting the temporal length ti or the number n of cleaning pulses .
- the pressure values are continuously measured and evaluated at the different points within the vacuum cleaner.
- the pulse lengths ti of the cleaning pulses of the cleaning processes can be made variable.
- the indices i are preferably between 1 and the number of cleaning pulses n, ie 1 ⁇ i ⁇ n.
- each length ti of a cleaning pulse i can be individually adapted to the filter condition during the same cleaning process.
- the lengths of the cleaning pulses within a cleaning process can be different, depending on the condition of the filter. If a cleaning process has three cleaning pulses, for example, the time lengths t1, t2 and t3 can be set and carried out differently for each cleaning pulse.
- the condition of the filter of the vacuum cleaner device is used as a basis in particular.
- the situation is often found in vacuum cleaning devices that the filter is most heavily soiled or clogged at the beginning of a cleaning process. It is then preferred within the meaning of the invention that a short pulse length t1 is set for the first cleaning pulse, while the pulse lengths t2, t3 etc. of the subsequent cleaning pulses 2, 3 etc. preferably last longer than the first cleaning pulse.
- the condition of the filter of the vacuum cleaning device does not only depend on its degree of soiling. It can also happen that the type of contamination or the material that clogs the filter has an influence on the design of the filter cleaning. For example, with materials such as lime or gypsum, which often cause heavy soiling of the filter, a small number of cleaning pulses can be set because the filter cake that forms is very dry and usually a small number of pressure surges is sufficient to remove the filter cake Solve filter. In the case of moist filter cakes, on the other hand, it can be preferred that a higher number of cleaning pulses is set.
- the time length ti of the cleaning pulses is in a range from 1 to 500 ms, preferably in a range from 10 to 200 ms, particularly preferably in a range from 30 to 150 ms and most preferably at approx. 40 to 100 ms.
- pulse lengths ti of 45 ms, 60 ms or 90 ms for a cleaning pulse can be very particularly preferred. Tests have shown that the times mentioned lead to optimal cleaning results.
- the pulse length ti is set by varying the valve opening time. In other words, different valve opening times can be set in order to achieve different time spans ti.
- the optimal valve opening time and thus the optimal time period ti are preferably determined by the control device of the vacuum cleaner.
- the control device preferably uses operating data and measured values that are determined by a suitable sensor system within the vacuum cleaner device.
- the valve opening time corresponds to the time span in which the valve is open.
- the start of the valve opening process is considered as the starting point of this time period.
- that instant is used as the starting point in time at which the valve is completely or substantially completely or is open with a predefined degree of opening.
- the beginning of the valve closing process is used as the end time of the time period or that time at which the valve is closed again completely or substantially completely or with a predefined degree of closure.
- the same start and end time is preferably selected for each cleaning pulse in order to carry out the proposed method.
- a cleaning process comprises a number of n cleaning pulses, the cleaning pulses being defined by the opening and closing of the valve. In particular, this also defines the time lengths ti of the cleaning pulses.
- valve opening time corresponds to the length ti of a cleaning pulse.
- the valve opening time can correspond to the temporal length ti, i.e. it can be preferred in the context of the invention that the valve opening time is essentially identical to the length ti.
- valve opening time is varied using a control device. It can also be preferred that the intensity of a cleaning process can be adjusted with the aid of the control device. this means In other words, it is preferred that, for example, different valve opening times or cleaning pulse numbers can be set using software solutions.
- data relating to a state of the filter of the Staubsaugvor device are preferably evaluated by the control device and used as a basis for determining an optimal valve opening time.
- this embodiment of the invention it is preferred to designate this embodiment of the invention as a software setting of the time length ti or software setting of the valve opening time.
- the control device is part of the vacuum cleaner.
- the vacuum cleaning device can comprise a suitable sensor system with which the data can be determined which describe the state of the at least one filter of the vacuum cleaning device.
- This can, for example, be pressure sensors which are arranged within the flow lines in the interior of the vacuum cleaner device.
- pressure sensors can be arranged in a flow line in front of and behind a filter in the flow direction, so that the pressure conditions within the flow line can be compared with one another in front of and behind the filter.
- such an arrangement enables a pressure difference within the vacuum cleaning device to be used as a control variable for filter cleaning.
- the difference in the pressure ratios upstream and downstream of the filter can be used to optimize the intensity of the Abitessvor gear.
- the determined pressure values can be used, for example, to set the pulse lengths ti and / or the number n of cleaning pulses.
- describe the pressure conditions inside the vacuum cleaner which can be determined, for example, in the direction of flow in front of and behind the filter, the state of the filter of the vacuum cleaner.
- These pressure ratios or their difference can then be used to control the intensity of the individual cleaning processes and to adapt them to the filter condition.
- Tests have shown that the pressure difference is a particularly suitable parameter for the degree of soiling of the at least one filter of the vacuum cleaner. This data comparison or a preceding processing or evaluation of the data can be carried out, for example, by the control device of the vacuum cleaner device.
- the data that are collected and evaluated to determine the pulse lengths ti or to determine a number n of cleaning pulses are determined by sensors.
- This can be, for example, pressure sensors which are arranged in front of and behind the filter of the vacuum cleaner in the direction of flow.
- it is very particularly preferred to use such data when determining of the pulse lengths ti and / or the number n of cleaning pulses that are already collected for other reasons for the operation of the vacuum cleaner.
- the data that are used when carrying out the method to determine the temporal lengths ti or a number n of cleaning pulses are recorded with such a sensor system that is already present on the vacuum cleaner is.
- the proposed method can be implemented in a vacuum cleaner device in a particularly simple manner and without great effort.
- a software solution with which the proposed method is carried out enables vacuum cleaning devices already on the market to be retrofitted particularly easily with the proposed method.
- a first sensor is arranged upstream of the filter of the vacuum cleaning device in the flow direction and that a second sensor is arranged downstream of the filter of the vacuum cleaning device in the flow direction.
- a first pressure or a first pressure value prevailing upstream of the filter in the flow direction is preferably measured with the first sensor and a second pressure or a second pressure value prevailing downstream of the filter in the direction of flow is measured with the second sensor.
- the first and the second pressure or the first pressure value and the second pressure value can be compared with one another and a pressure difference can be formed. This can be done, for example, by subtracting one of the two pressure values from the other pressure value.
- the person skilled in the art knows how to form a pressure difference from two pressure values.
- an intensity of the cleaning processes can be derived on the basis of the pressure difference, which can then be determined by suitable measures, such as optimizing the duration ti of cleaning pulses and / or optimizing the number n of cleaning impulses per cleaning process, is set.
- suitable measures such as optimizing the duration ti of cleaning pulses and / or optimizing the number n of cleaning impulses per cleaning process.
- a required intensity of the cleaning processes to be carried out is determined on the basis of the determined pressure difference.
- the pulse lengths ti of the subsequent cleaning pulses can be set on the basis of the determined difference in the pressure conditions that prevail in the direction of flow in front of and behind the filter of the vacuum cleaner.
- the determined pressure difference can preferably also be used to determine the number n of cleaning pulses.
- a high pressure difference preferably for a high degree of contamination of the filter.
- a high pressure difference preferably also leads to a strong pressure surge when the valve is opened, so that the strength of the cleaning pressure surge or a cleaning pulse or the air volume that flows through the filter during a cleaning pulse is optimally adapted to the degree of contamination of the Filters, which is preferably related to the pressure difference, can be adapted.
- the difference in the pressure conditions prevailing in the direction of flow in front of and behind the filter of the vacuum cleaner is a measure of the contamination of the filter.
- the number n of cleaning pulses can also be kept small. In this way, it can be avoided, for example, that too many cleaning impulses are carried out per cleaning process.
- the avoidance of redundant cleaning pulses per cleaning process represents a significant advantage of the invention, because it can preferably also keep the number of undesirably ejected dust clouds low. In addition, it can be ensured with the invention that each individual cleaning pulse has too great an intensity.
- valve opening times the length of which preferably corresponds to the pulse length ti
- a long cleaning pulse with a large time period ti preferably corresponds to a high cleaning intensity because a large volume of air is passed through the filter.
- the volume of air that is passed through the vacuum cleaner in the opposite direction of flow for filter cleaning is a measure of the intensity of filter cleaning.
- a short cleaning pulse with a short period of time ti preferably corresponds to a low cleaning intensity, because in this case only a small amount of air or a small volume of air is passed through the vacuum cleaner device.
- the intensity of the cleaning process is influenced by an adjustable cross section of a valve opening.
- This embodiment of the invention is preferably referred to as a mechanical adjustment of the filter cleaning.
- Different filter cleaning processes can preferably be achieved by changing the cross section of an opening and / or flap of the valve.
- the ability to adjust the cross-section of the valve opening means in the context of the invention in particular that a cross-sectional area within the valve or the flow line can be varied or changed. This can be achieved, for example, by changing a valve opening path and / or a valve opening angle.
- This form Features of the invention are preferably also referred to as “adaptive valve opening path” or “adaptive valve opening angle”.
- the intensity of the cleaning process can be influenced by setting a valve acceleration and / or valve damping.
- it can be preferred to vary the filter cleaning by adaptive valve acceleration or adaptive valve damping. Different cleaning intensities can be set in particular by setting different valve accelerations and / or valve dampings.
- valve acceleration preferably describes the dynamics on which the opening or closing process of the valve is based. A valve that closes at a high speed per unit of time has a high valve acceleration and a valve that closes at a low speed per unit of time has a low valve acceleration.
- the term “speed” preferably describes the speed at which a valve flap moves when the valve that enables backwashing of the filter has such a valve flap.
- speed preferably describes the speed at which a valve flap moves when the valve that enables backwashing of the filter has such a valve flap.
- this embodiment of the invention it is preferred to designate this embodiment of the invention as a “dynamic” setting of the cleaning intensity.
- the number n of cleaning pulses per cleaning process is in a range from 1 to 7, preferably in a range from 2 to 5 and most preferably 3. Tests have shown that the numbers mentioned lead to particularly good cleaning results to lead.
- the number n of cleaning pulses can be set as a function of the progress of the filter cleaning. In other words, according to the invention, it may be preferred to vary or set the number n of cleaning pulses so that a degree of contamination of the filter, a degree of clogging of the filter or an operating time of the vacuum cleaner - for example measured since the last filter change - are determined the number n of cleaning pulses is based or taken into account.
- filter cleaning can be provided that is particularly tailored to requirements, with which, on the one hand, effective cleaning of the filter of the vacuum cleaner is made possible, but on the other hand also the pressure increase caused by filter cleaning will be kept to a minimum or its duration as short as possible can.
- the suction operation of the vacuum cleaner is impaired as little as possible and the suction efficiency remains high - especially in comparison to conventionally working vacuums.
- the invention relates to a vacuum cleaning device in which the filter cleaning can be controlled with the proposed method.
- the design of a cleaning process takes place as a function of a state of the filter of the vacuum cleaner.
- the proposed vacuum cleaner is designed to perform the individual cleaning processes during operation of the vacuum cleaner as a function of the condition of its filter.
- the proposed vacuum cleaning device is advantageously not based on a time-based control with fixed intervals between cleaning processes, the cleaning processes also having a fixed time length.
- the proposed vacuum cleaner does not work based on rigid, fixed time schemes, but rather the operation of the vacuum cleaner or the implementation of the filter cleaning is based on the actual cleaning requirement, so that the operation of the vacuum cleaner and the implementation of the filter cleaning are advantageous can be adapted to the actual cleaning requirements.
- the number of cleaning pulses per cleaning process is no longer fixed. Rather, the proposed invention allows the intensity of each cleaning process to be set individually.
- each cleaning pulse i can be determined and set individually as a function of a state of the filter that is arranged in the vacuum cleaner.
- the number n of cleaning pulses can be varied as a function of a state of the filter.
- this avoids too frequent initiation of a cleaning process, which can have a detrimental effect on the performance of the vacuum cleaner device. This is because in this case there is constant interruption of the suction operation, since the filter cleaning process involves an increase in pressure or a decrease in the negative pressure within the vacuum cleaner.
- the filter cleaning processes can advantageously be initiated as a function of a current requirement and as a function of the state of the filter.
- the number of filter cleaning processes per unit of time can be optimized so that, on the one hand, the vacuum cleaning process is not interrupted too frequently must and on the other hand an efficient suction power of the vacuum cleaner and an effizien te filtering of the air flow in the vacuum cleaner can be guaranteed.
- the vacuum cleaning device comprises means for detecting a state of the at least one filter of the vacuum cleaning device.
- the vacuum device can include, for example, sensors for determining pressure values, where the sensors can be arranged in front of and behind the filter, in particular in a suction stream of the vacuum device.
- the measured values determined with the sensors are further processed using information technology. For example, characteristic values, parameters or comparison data can be calculated and / or derived from the determined measured values.
- the vacuum cleaner device preferably also comprises a control device for carrying out the proposed method.
- the vacuum cleaner comprises a control device for adapting the temporal length ti and / or the number n of cleaning pulses per cleaning process as a function of a state of the filter of the vacuum cleaner.
- the intensity of a cleaning process can advantageously be adjusted, preferably with the help of the control device of the vacuum cleaner, in particular adapted to the degree of soiling of the filter of the vacuum cleaner.
- the intensity of a cleaning process can, in particular, also be adapted to the filter status during a cleaning process. This adaptation can preferably take place at a point in time immediately before or during a cleaning pulse. It is preferred in the context of the invention that the intensity of the cleaning depends on the amount of air that flows through the filter of the vacuum cleaner in the opposite direction per unit of time. In the context of the invention, the term “in the opposite direction” preferably means that the air or the air-dust mixture flows through the vacuum cleaner against the normal operating flow direction during filter cleaning.
- the intensity of an individual pulse preferably depends on the valve opening time, which is preferably linked to the length of time ti.
- valve opening time has a significant influence on the intensity of the filter cleaning due to the provision of the air volume that can flow through the filter in the opposite direction.
- the amount of air or the volume of air that is available for backwashing the filter can preferably can also be set by the cross-sectional area of the valve and / or its opening speed.
- this adaptation can take place in software by setting the valve opening time.
- a computer program product is stored in the vacuum cleaner or in the control device of the vacuum cleaner, with which the control of the filter cleaning can be carried out.
- the computer program product can be used to set the valve opening times and thus the temporal length ti of the individual cleaning pulses.
- the intensity of the filter cleaning can be adjusted by means of an adjustable cross section of the valve opening, for example by means of an adaptive valve opening path or an adaptive valve opening angle.
- the adjustment can be made by adaptive valve acceleration or adaptive valve damping.
- the number of cleaning impulses of a cleaning process can preferably be adjusted within limits according to the progress of cleaning the filter.
- FIG. 1 shows the course over time of filter cleaning, as is known from the prior art. It shows:
- FIG. 1 shows an exemplary course of filter cleaning in accordance with a conventional filter cleaning method, as is known from the prior art.
- the plot of the pressure p is shown against the time t.
- the pressure p within the vacuum cleaning device (not shown) is plotted on the y-axis, while the time t is plotted on the x-axis.
- Fig. 1 preferably shows a change over time in the pressure conditions within the Staubsaugvorrich device during its operation, in which a filter cleaning process (2) takes place.
- a cleaning process (2) is shown.
- the cleaning process (2) shown comprises three cleaning pulses (3), each of which is shown as a peak in the plot.
- the cleaning pulses (3) each have a time length ti (1), the first cleaning pulse (3) having a time length t1, while the second cleaning pulse (3) has a time length t2 and the third cleaning pulse (3) has a time length t3.
- the temporal lengths ti are the same or essentially the same.
- the pressure profile over time corresponds to the pressure profile in a conventional vacuum cleaner with a constant length t of a cleaning pulse (3) and a fixed number of cleaning pulses (3).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20167560.0A EP3888516A1 (de) | 2020-04-01 | 2020-04-01 | Bedarfsgerechte filterabreinigung |
| PCT/EP2021/057418 WO2021197925A1 (de) | 2020-04-01 | 2021-03-23 | Bedarfsgerechte filterabreinigung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4125523A1 true EP4125523A1 (de) | 2023-02-08 |
| EP4125523B1 EP4125523B1 (de) | 2024-07-10 |
| EP4125523C0 EP4125523C0 (de) | 2024-07-10 |
Family
ID=70154300
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20167560.0A Withdrawn EP3888516A1 (de) | 2020-04-01 | 2020-04-01 | Bedarfsgerechte filterabreinigung |
| EP21713039.2A Active EP4125523B1 (de) | 2020-04-01 | 2021-03-23 | Bedarfsgerechte filterabreinigung |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20167560.0A Withdrawn EP3888516A1 (de) | 2020-04-01 | 2020-04-01 | Bedarfsgerechte filterabreinigung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250275657A1 (de) |
| EP (2) | EP3888516A1 (de) |
| JP (1) | JP2023518074A (de) |
| CN (1) | CN115209775A (de) |
| WO (1) | WO2021197925A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240138639A1 (en) * | 2022-11-02 | 2024-05-02 | Black & Decker, Inc. | Vacuum cleaning device |
| CN116172458B (zh) * | 2022-11-17 | 2025-09-12 | 云鲸智能(深圳)有限公司 | 清洁设备的控制方法、装置、设备、系统及存储介质 |
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| CA1256389A (en) * | 1984-07-02 | 1989-06-27 | Henry Borow | Dust separator |
| EP0201524A4 (de) * | 1984-10-03 | 1987-03-03 | Arnold Plooy | Staubsaugersystem. |
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-
2020
- 2020-04-01 EP EP20167560.0A patent/EP3888516A1/de not_active Withdrawn
-
2021
- 2021-03-23 US US17/909,494 patent/US20250275657A1/en active Pending
- 2021-03-23 CN CN202180017983.8A patent/CN115209775A/zh active Pending
- 2021-03-23 JP JP2022556476A patent/JP2023518074A/ja active Pending
- 2021-03-23 EP EP21713039.2A patent/EP4125523B1/de active Active
- 2021-03-23 WO PCT/EP2021/057418 patent/WO2021197925A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP4125523B1 (de) | 2024-07-10 |
| CN115209775A (zh) | 2022-10-18 |
| WO2021197925A1 (de) | 2021-10-07 |
| JP2023518074A (ja) | 2023-04-27 |
| EP4125523C0 (de) | 2024-07-10 |
| EP3888516A1 (de) | 2021-10-06 |
| US20250275657A1 (en) | 2025-09-04 |
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