WO2020216628A1 - Verfahren zur steuerung eines abreinigungsprozesses in einer staubsaugvorrichtung und staubsaugvorrichtung - Google Patents
Verfahren zur steuerung eines abreinigungsprozesses in einer staubsaugvorrichtung und staubsaugvorrichtung Download PDFInfo
- Publication number
- WO2020216628A1 WO2020216628A1 PCT/EP2020/060122 EP2020060122W WO2020216628A1 WO 2020216628 A1 WO2020216628 A1 WO 2020216628A1 EP 2020060122 W EP2020060122 W EP 2020060122W WO 2020216628 A1 WO2020216628 A1 WO 2020216628A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- reference value
- vacuum cleaner
- cleaning
- value
- 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.)
- Ceased
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
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/19—Means for monitoring filtering operation
-
- 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
- A47L9/2821—Pressure, vacuum level or airflow
Definitions
- the present invention relates to a method for controlling a cleaning process in a vacuum cleaning device, the vacuum cleaning device comprising at least one filter that is cleaned regularly.
- the proposed method enables in particular a needs-based, differential pressure-dependent filter cleaning in which the filter aging or the filter wear can also be taken into account.
- the invention relates to a vacuum cleaner device with which the proposed control method can be carried out.
- the vacuum cleaner device can in particular comprise a filter cleaning unit.
- vacuum cleaning devices are known, which are used in particular on construction sites in order to suck off occurring dust in connection with the use of machine tools, such as, for example, drilling or grinding devices.
- Baustel lens vacuums usually comprise a suction head in an upper area and a collecting container for the sucked up dust in a lower area of the vacuum cleaner.
- Such vacuum cleaners are preferably also referred to as industrial vacuums, construction site vacuums or construction vacuums in the context of the invention.
- the dust is sucked in with a turbine that is driven by a motor.
- the turbine generates a suction flow by providing a negative pressure in the dust accumulator.
- the turbine can preferably also be designed as a fan.
- the turbine or the fan are sensitive components of the vacuum device that must be protected in particular from dust. Therefore, filters or filter elements are usually connected upstream of the blower or the turbine in order to filter out any dust that has remained in the suction stream from the suction stream before the dust gets into the area of the turbine or the fan. These filters or filter elements can become clogged with dust over time, which can impair their functionality.
- filter cleaning is in the sense of Invention preferably referred to as “filter cleaning”.
- filter cleaning is in the sense of Invention preferably referred to as “filter cleaning”.
- the vacuum in the vacuum cleaner is reduced when cleaning the filter, whereby the suction of the dust is briefly interrupted and the filter is cleaned.
- the filter cleaning process is usually controlled on a time basis. For example, regularly recurring time intervals can be stored or defined in the vacuum cleaner or a control unit of the vacuum cleaner, in which the filter cleaning is carried out automatically. With such time-based filter cleaning processes, cleaning cycles are carried out at regular time intervals. The quality of the cleaning can be described or documented with a cleaning quality.
- the disadvantage of the filter cleaning method known from the prior art is that the filter wear or filter aging is not taken into account when controlling or initiating the filter cleaning process, so that a significant factor for achieving a high cleaning quality is not taken into account when controlling the cleaning is included. As a result, it can happen that cleaning takes place at unsuitable times or that it is either carried out too early and therefore too often or too seldom and therefore after a maximum quality has been exceeded. Too frequent cleaning is disadvantageous insofar as the negative pressure in the vacuum cleaning device has to be reduced during cleaning, which causes a short-term, undesirable interruption of the dust-sucking process.
- the object of the present invention is to solve the problems described above and to provide a method for controlling a cleaning process in a vacuum cleaner with which a needs-based filter cleaning with efficiency check is made possible and in which the control and initiation of a cleaning process taking into account the filter wear or . the filter aging takes place.
- the object is achieved by the subject matter of the independent claims. Advantageous embodiments relating to the subject matter of the independent claims can be found in the dependent subclaims.
- the object is achieved here by a method for controlling a cleaning process in a vacuum cleaner, the vacuum cleaner comprising at least one filter that is cleaned regularly.
- the process is characterized by the following process steps: a) Establishing a first reference value that defines a pressure range,
- filter cleaning can be provided, which enables an efficiency check and, surprisingly, a consideration of filter wear or filter aging.
- the consideration of the filter wear or the filter aging is made possible in particular by adapting the reference value, which can be maintained or changed as a function of a current pressure value that is determined in the vacuum cleaner.
- a particular advantage of the invention is that the filter cleaning is controlled as a function of the differential pressure, i. caused, will. This advantageously enables filter wear and / or filter aging to be taken into account when controlling the filter cleaning.
- a first reference value is first established.
- This reference value preferably describes the state of the filter or of the filter elements forming the filter.
- the first reference value describes a state of the filter or the filter elements with regard to aging or wear.
- This state of the filters or the filter elements can advantageously correspond to the quality of the filter cleaning, so that statements about the quality of the filter cleaning can preferably be derived from the first reference value.
- the first reference value is preferably determined before or when the vacuum cleaner is started up, so that it preferably represents the state of the filter or the filter elements at the start of the vacuum cleaner operation.
- the first reference value is determined after a predetermined operating time or after performing a certain number of cleaning cycles, so that the first reference value preferably describes the state of the filter or the filter elements after a short operating time of the vacuum cleaner device. According to the invention, it can also be preferred that the first reference value is determined or checked by determining a differential pressure or flow resistance value and subtracting this differential pressure or flow resistance value from a maximum differential pressure or flow resistance value .
- the reference value describes a state which is determined when the vacuum cleaner is switched on and which is provided as a target value for further cleaning.
- this target value can be corrected upwards or downwards by using the method steps mentioned as required and depending on the condition of the filter, so that in the context of the present invention, in particular, the target value for filter cleaning or filter cleaning quality is adjusted .
- the first reference value can be established as a function of operating parameters that can be determined in relation to the vacuum cleaner and its operation. In other embodiments of the invention, the first reference value can also be specified as a theoretical value.
- the first reference value is used as the starting point for the proposed method.
- the first reference value can preferably correspond to a pressure difference in the air flow or suction volume flow, the pressure difference preferably being measured in the air flow in front of and behind the filter.
- a pressure difference in the air flow is determined upstream and downstream of the filter.
- the pressure difference can be larger or smaller, with low degrees of pollution being associated with a low pressure difference and heavy pollution being associated with a large pressure difference.
- the determined pressure or pressure differential values are further processed using information technology.
- characteristic values, parameters or comparison data can be calculated and / or derived from the determined pressure or pressure difference values.
- the determined pressure or pressure differential values are used to calculate a flow resistance from them.
- a C w value can be determined for this purpose, which preferably describes the flow resistance that the filter has in the air or suction flow. It has been shown that the flow resistance value of the filter can be determined particularly well on the basis of the determined pressure or pressure difference values.
- the C w value of the filter has a particularly high technical informative value with regard to the degree of contamination of the filter or the quality of the filter cleaning.
- the flow resistance value is determined using the motor characteristic of the vacuum cleaner device.
- the pressure range which is placed around the first reference value in the context of the present invention, can for example be established such that the first reference value lies centrally or essentially centrally in the pressure range. It can also be preferred that the first reference value represents an upper or a lower limit of the pressure range and that the pressure range is in each case limited by a second threshold value.
- the pressure range that is determined by the reference value can include a differential pressure or a flow resistance value that is considered sufficient for a qualitatively acceptable filter cleaning. This differential pressure value or a flow resistance value can represent a limit of the pressure range, for example
- a differential pressure value can be determined in the context of the present invention, which describes a current state of the filter.
- this differential pressure value it is preferably the difference between the pressure conditions in the air or suction stream in front of and behind the filter, which is determined in particular by comparing pressure values that are determined in front of and behind the filter in the suction stream.
- the difference between the pressure ratios in the context of the invention is also referred to as the pressure difference.
- the determined pressure difference value is used for comparison for subsequent cleaning.
- the invention advantageously enables the aging process or the clogging of the filter to be taken into account.
- the determined differential pressure value is compared with the first reference value.
- the proposed method comprises the following method step: comparison of the previously determined differential pressure value with the first reference value.
- the differential pressure value is in the previously defined pressure range. Depending on whether the previously determined differential pressure value is in the initially defined pressure range, a second reference value is established, the following case distinction being made here. If the determined differential pressure value lies in the previously defined pressure range, the first reference value is retained. If the determined differential pressure value is not in the previously defined pressure range, the first reference value is replaced by the currently determined differential pressure value, whereby the second reference value is obtained. This second reference value is preferably used as the starting point for the subsequent cleaning processes, so that the second reference value is preferably used as the “first reference value” when the method is repeated. For the purposes of the invention, it can also be preferred that the determination of the second reference value is made dependent on how the currently determined differential pressure relates to the first reference value. In the context of the invention, it is particularly preferred that the differential pressure value is determined by forming the difference between pressure values that can be detected in a suction flow of the vacuum cleaner in front of and behind the filter.
- the definition of the second reference value preferably corresponds to an adaptation of the reference value which is carried out in order to advantageously take account of the filter aging. If, during this adaptation, the first reference value is replaced by the pressure value determined and the pressure value determined is replaced with a more heavily aged one If the filter corresponds, this greater aging can be taken into account when carrying out or controlling the subsequent filter cleaning processes. The proposed vacuum device will therefore no longer try in this embodiment to achieve the original quality of the filter cleaning. Up to now this could lead to problems if an automatic filter cleaning control system had always tried to achieve a filter cleaning quality that is to be expected from an unused filter, because filter cleaning processes may have been initiated too often as a result.
- the filter cleaning processes are initiated much more as a function of a current requirement and as a function of the filter with regard to its aging and / or its wear .
- This advantageously optimizes the number of filter cleaning processes per unit of time so that, on the one hand, the dust suction process does not have to be interrupted too frequently and, on the other hand, efficient suction power of the vacuum cleaner and efficient filtering of the air flow in the vacuum cleaner are achieved.
- the second reference value is greater than the first reference value. In other refinements of the method, it can also be preferred that the second reference value is smaller than the first reference value. This is especially the case if an above-average cleaning is found. In other words, in the case of an above-average cleaning, the new, second reference value can also be set below the original first reference value by recalibration. This can be the case, for example, if the cleanings carried out have led to such good cleaning results that the filter is less soiled after the cleaning than, for example, when the vacuum cleaner was started. In this respect, it can be preferred in the context of the invention that the method steps are not only run through once, but that they are carried out repeatedly.
- the invention offers a needs-based, differential pressure-dependent filter cleaning with efficiency check, the efficiency check being achieved in particular by comparing the currently determined differential pressure value with the first reference value, as well as the subsequent determination of the second reference value depending on how the current differential pressure value is related to behaves like the first reference value.
- the second reference value can preferably correspond to the first reference value or the first reference value can be replaced by the current differential pressure value, whereby a new or changed reference value is obtained, which is preferably referred to as the second reference value.
- Preferably around- the proposed method summarizes a reference value adjustment in order to take into account the aging process or the wear of the filter.
- the reference value can be recalibrated if the original, ie the first, reference value is not reached.
- the invention in a second aspect, relates to a filter cleaning device for the vacuum cleaner which can be controlled, ie controlled, using the proposed method.
- the vacuum device preferably comprises sensors for determining pressure values, the sensors being arranged in front of and behind the filter in particular in a suction stream of the vacuum device.
- the at least two pressure values can be determined, from which the differential pressure value can be formed by forming the difference, that is to say in particular by performing a subtraction.
- the vacuum cleaner device preferably also comprises a control device for initiating and performing the method steps of the control method.
- FIG. 1 View of a preferred embodiment of the method
- Figure 1 shows a preferred embodiment of the method for controlling a cleaning process in a vacuum cleaner.
- a needs-based, differential pressure-dependent filter cleaning in which filter aging or filter wear is also taken into account, is achieved in that a reference value, which preferably represents a state of the filter of the vacuum cleaner describes how it can be adapted to any filter aging or wear over time.
- the reference value which in the context of the invention is preferably also referred to as the first reference value, is preferably used as a control parameter for the proposed control method. It can provide information about a filter status of the vacuum cleaner device, so that the reference value preferably indicates which filter cleaning quality is to be aimed for with the filter cleaning.
- the reference value can be adapted to a current filter status, the current filter status advantageously being described by a differential pressure value that is determined in the suction flow in front of and behind the filter.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Vacuum Cleaner (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/442,851 US12357141B2 (en) | 2019-04-23 | 2020-04-09 | Method for controlling a clearing process in a vacuum cleaning device, and vacuum cleaning device |
| CN202080020621.XA CN113556967B (zh) | 2019-04-23 | 2020-04-09 | 用于控制真空清洁装置中的清理过程的方法、以及真空清洁装置 |
| JP2021561894A JP7331133B2 (ja) | 2019-04-23 | 2020-04-09 | 真空清掃機器における清掃プロセスを制御するための方法、及び真空清掃機器 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19170577.1 | 2019-04-23 | ||
| EP19170577.1A EP3730024B1 (de) | 2019-04-23 | 2019-04-23 | Verfahren zur steuerung eines abreinigungsprozesses in einer staubsaugvorrichtung und staubsaugvorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020216628A1 true WO2020216628A1 (de) | 2020-10-29 |
Family
ID=66248601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2020/060122 Ceased WO2020216628A1 (de) | 2019-04-23 | 2020-04-09 | Verfahren zur steuerung eines abreinigungsprozesses in einer staubsaugvorrichtung und staubsaugvorrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12357141B2 (de) |
| EP (1) | EP3730024B1 (de) |
| JP (1) | JP7331133B2 (de) |
| CN (1) | CN113556967B (de) |
| DK (1) | DK3730024T3 (de) |
| WO (1) | WO2020216628A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2622366A (en) * | 2022-09-13 | 2024-03-20 | Dyson Technology Ltd | A method of determining a value of a filter loading of a filter of an air-moving device |
| CN115541443B (zh) * | 2022-11-30 | 2023-03-03 | 苏州浪潮智能科技有限公司 | 印刷电路板的检测方法、其检测装置及电路板的印刷设备 |
| GB2625103A (en) * | 2022-12-06 | 2024-06-12 | Dyson Technology Ltd | A method for determining an initial filter-loading value of an air-moving device |
| GB2630739A (en) * | 2023-05-31 | 2024-12-11 | Dyson Technology Ltd | A method of monitoring a filter of an air-moving device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008038893A1 (de) * | 2008-08-13 | 2010-02-18 | Miele & Cie. Kg | Verfahren und Vorrichtung zur Bestimmung des Füllgrades eines in einem Staubsauger angeordneten Sammelorgans |
| EP2457485A1 (de) * | 2005-04-11 | 2012-05-30 | Alfred Kärcher GmbH & Co. KG | Verfahren zum Abreinigen der Filter eines Staubsaugers sowie Staubsauger zur Durchführung des Verfahrens |
| EP2644076A1 (de) * | 2012-03-27 | 2013-10-02 | ELECTROSTAR GmbH | Sauger |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7237298B2 (en) * | 2003-09-19 | 2007-07-03 | Royal Appliance Mfg. Co. | Sensors and associated methods for controlling a vacuum cleaner |
| JP2007245019A (ja) * | 2006-03-16 | 2007-09-27 | Hitachi Koki Co Ltd | 集塵機 |
| SE0702005L (sv) * | 2007-09-07 | 2008-12-16 | Electrolux Ab | Dammsugare |
| DE102009035717A1 (de) * | 2009-07-31 | 2011-02-10 | Miele & Cie. Kg | Verfahren zur Anzeige eines Füllgrads eines Staubbeutels und Steuerungsvorrichtung zur Ausführung des Verfahrens |
| DK3119260T3 (en) * | 2014-03-20 | 2018-07-23 | Kaercher Gmbh & Co Kg Alfred | Method of cleaning a filter of a vacuum cleaner and vacuum cleaner |
| US20150343348A1 (en) | 2014-06-03 | 2015-12-03 | Caterpillar Inc. | System for detecting pressure differential between inlet and outlet of filter element |
| EP3498142A1 (de) | 2017-12-18 | 2019-06-19 | HILTI Aktiengesellschaft | Effiziente filterabreinigung |
-
2019
- 2019-04-23 DK DK19170577.1T patent/DK3730024T3/da active
- 2019-04-23 EP EP19170577.1A patent/EP3730024B1/de active Active
-
2020
- 2020-04-09 US US17/442,851 patent/US12357141B2/en active Active
- 2020-04-09 CN CN202080020621.XA patent/CN113556967B/zh active Active
- 2020-04-09 WO PCT/EP2020/060122 patent/WO2020216628A1/de not_active Ceased
- 2020-04-09 JP JP2021561894A patent/JP7331133B2/ja active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2457485A1 (de) * | 2005-04-11 | 2012-05-30 | Alfred Kärcher GmbH & Co. KG | Verfahren zum Abreinigen der Filter eines Staubsaugers sowie Staubsauger zur Durchführung des Verfahrens |
| DE102008038893A1 (de) * | 2008-08-13 | 2010-02-18 | Miele & Cie. Kg | Verfahren und Vorrichtung zur Bestimmung des Füllgrades eines in einem Staubsauger angeordneten Sammelorgans |
| EP2644076A1 (de) * | 2012-03-27 | 2013-10-02 | ELECTROSTAR GmbH | Sauger |
Also Published As
| Publication number | Publication date |
|---|---|
| DK3730024T3 (da) | 2022-02-07 |
| CN113556967A (zh) | 2021-10-26 |
| US12357141B2 (en) | 2025-07-15 |
| CN113556967B (zh) | 2022-11-29 |
| US20220183523A1 (en) | 2022-06-16 |
| JP7331133B2 (ja) | 2023-08-22 |
| EP3730024B1 (de) | 2021-12-29 |
| JP2022529172A (ja) | 2022-06-17 |
| EP3730024A1 (de) | 2020-10-28 |
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