EP0755216B1 - Staubsauger mit einer saugleistungsanzeige - Google Patents
Staubsauger mit einer saugleistungsanzeige Download PDFInfo
- Publication number
- EP0755216B1 EP0755216B1 EP95915164A EP95915164A EP0755216B1 EP 0755216 B1 EP0755216 B1 EP 0755216B1 EP 95915164 A EP95915164 A EP 95915164A EP 95915164 A EP95915164 A EP 95915164A EP 0755216 B1 EP0755216 B1 EP 0755216B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter bag
- vacuum cleaner
- suction power
- display
- blower
- 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.)
- Expired - Lifetime
Links
- 238000012937 correction Methods 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 abstract description 3
- 101000912561 Bos taurus Fibrinogen gamma-B chain Proteins 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
-
- 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 invention relates to a vacuum cleaner with a Blower, a filter bag and a suction power indicator, by detecting a pressure difference is controlled, the pressure difference from the negative pressure in the suction channel in front of the filter bag and overpressure after the blower is formed.
- Vacuum cleaners are known, in general as an indicator of the increasing clogging of the filter bag by sucked up dust by the throttling effect pressure drop caused by the filter material be pulled over the filter bag.
- This pressure drop becomes working by means of analog or digital Ads displayed as a feature of filter clogging.
- Ads displayed as a feature of filter clogging.
- Devices with variable motor power can Ads that only show the pressure drop across the filter bag take into account, correct only in one operating point Show. In general, this is the point max. Engine power, so at a smaller chosen Too little filter clogging is displayed becomes.
- a vacuum cleaner is included in EP-A1-0365191 a suction power indicator known.
- This suction power indicator is determined by determining a pressure difference controlled, to determine this pressure difference input side of a filter bag, i.e. in the before arranged suction channel, the vacuum and after a Blower the overpressure is measured.
- Pressure values are measured using a microprocessor evaluated and displayed.
- a suction power display is known from GB-A-2012158, which applied a vacuum to both sides Has membrane. To determine the pressure difference the vacuum inside the filter bag and the negative pressure outside the filter bag, i.e. in the Area of the filter chamber, tapped. These oppressions each act on one of the opposite surfaces the membrane, which corresponds to the pressure difference moved a pointer.
- the object of the present invention is a generic Vacuum cleaner with a mechanical one Provide ad regardless of which one is used Attachment device and therefore also independent of the work panel shows the relative suction power.
- the position of the movable For example, disc within the device be recognized by means of a viewing window.
- the display device can be designed so that this for example a cylinder in which the disc is freely movable.
- Negative pressure in the suction channel and secondly the excess pressure after the blower.
- Pressures against each other can be bellows, for example be used.
- dependent pressures takes the disc in the cylinder a position which, for example, via a viewing window can be recognized, which with a scale can be provided.
- the fan power is on reduced by half, this results in a corresponding reduced vacuum in the suction channel and a reduced overpressure after the fan, their addition an indication of the suction power of 50%.
- Fan performance occurs when the filter bag becomes increasingly clogged a decrease in the vacuum in the suction channel.
- the Adding the pressures results in a smaller value, which is displayed, for example a current relative suction power of 80%. Will be under another attachment with these given circumstances upstream of a smaller work panel, so leads this leads to an increase in the air speed in the area of the suction channel, which also means the negative pressure in the Suction channel increases, while lowering the Overpressure after the blower. However, the latter sinks not to the same extent as the overpressure in the suction channel increases.
- the negative pressure a correction factor is activated. This can be done, for example be realized that in the device in which the absolute values of the pressures are added, the value of the A spring pressure value of a ring spring or the like is opposed.
- the display is designed as an analog display.
- the disc is one-sided is spring loaded.
- the correction factor by different Connection surfaces for the two pressures the opposite sides of the disc is.
- the pads on the opposite Surfaces of the disk can be chosen in this way, for example be that the area on which the overpressure after the Fan acts, is larger than the surface, acts on the negative pressure in the suction channel. Prefers will be training in which the pads circular, according to the cylindrical shape of the device, are shaped.
- the suction power display calculates the display value by adding the absolute values of the negative pressure in the suction channel and overpressure behind the blower, which overpressure multiplied by the correction factor is. The latter in turn is calculated from the square the pressure gauge ratios of the two connection surfaces to each other.
- the vacuum cleaner 1 shown is designed as a hand-held device. It has a housing 2, to which a top Device handle 3 connects with end handle 4. In Transition area between handle 4 and handle 3 there is a power potentiometer 5, which on the one hand to switch the vacuum cleaner on and off and on the other hand for variable fan motor power setting serves.
- the electrical cable connection is with the number 6 designated.
- the housing 2 is divided into a motor housing 7 and an overlying chamber 8 for receiving a filter bag 9.
- a blower motor 11 In the motor housing 7 that is Blower 10 arranged, which by means of a blower motor 11 is driven (see FIG. 2).
- the motor housing 7 goes into a pipe coupling on the underside 12 over which the air flow connection to a suction nozzle 13 manufactures.
- the suction nozzle 13 it is shown in the Example of a so-called suction / brush nozzle, the contains a brush roller in the nozzle mouth, which over a separate drive is set in rotation. There are other attachments can also be used, such as a crevice nozzle or an upholstery nozzle.
- the blower motor 11 is connected downstream of the filter bag 9 and works in a known manner, therefore sucks the dust air through the above the motor housing 7 tumbled filter bag 9, which directly via a suction channel 28 with a pipe coupling 12 through the suction channel.
- the blower 10 is furthermore a blow-out filter 32 downstream, via which the cleaned air after outside occurs.
- the cross section of the housing 2 is rectangular throughout with poorly developed broadsides and the like Narrow sides.
- Fig. 1 is the vacuum cleaner of the To see the narrow side. 2 shows a partial Broken view on a broadside.
- a suction power indicator 14 is arranged in this.
- the latter consists essentially of a cylindrical Body 15, in which a movable, closed Disk 16 is mounted. On the opposite Surfaces 17, 18 of the disk 16 are switched, as a result of which the disk 16 depends on the pressures positioned within the cylindrical body 15. For Readability of the current position of the disc 16 inside the cylindrical body 15 the latter has a slot-shaped opening 19 through which a pointer 20 arranged on the disk 16 engages.
- the cylindrical body 15 is immediately behind the Housing wall of the motor housing 7 arranged. In the area of the slot-shaped opening 19 of the cylindrical Body 15, the motor housing 7 has a viewing window 21, whereby the current position of the disc 16 can be recognized from the outside with the aid of the pointer 20.
- the body On the face side, the body has 15 cylindrical sockets 22,23 for connecting pressure lines 24,25, one Pressure line 24 leads to a connection point 26, which behind the blower 10, but in front of the blow-out filter 32 is arranged.
- bellows 29.30 used to seal the pressures used within the cylindrical body 15 against each other. These each extend from the part of the protruding into the cylindrical body Stubs 22 and 23 starting from the respective Bellows 29,30 facing surfaces 17 and 18 of the Disc 16.
- the sealing of the pressures against one another can also, for example through membranes or through adapted cylinder guides for the different piston diameters be achieved.
- the circular surfaces 17, 18 are of different sizes educated. It can be seen from Fig. 4 that the Radius of the pad 17 is approximately twice as large as that of the pad 18. By the area ratio of large and small piston diameters or mating surfaces a correction factor is determined. This is calculated by the square of the ratio of large to small diameter.
- the sealing of the pressures against one another can also, for example by membrane or by adapted cylinder guides achieved for the different piston diameters will.
- Compression spring 31 which is located at one end of the Inside of the cylindrical body 15 in the area of Supporting nozzle 23 and the other end on the disc 16. It includes the bellows 30.
- This compression spring 31 serves as an auxiliary spring to achieve a basic position the suction power display 14, according to that in FIG. 4 shown position.
- the negative pressure in the suction channel is via the pressure line 25 28 in front of the filter bag 9 and via the pressure line 24 the overpressure after the blower 10, but before subsequent ones Flow resistances and the blow-out filter 32 on the respective pads 17 and 18 of the disc 16 switched.
- the relative Suction power corresponding position In the shown Starting position is, for example, the one shown Value of the suction power display 14 on the scale 0%.
- the pointer 20 i. H. at max. shift the disc 16 in the direction of the nozzle 23 a suction power of 100% is displayed.
- the two pressures ie the negative pressure in the suction channel 28 in front of the filter bag 9 and the positive pressure behind the blower 10, are linked, the display value A resulting from the addition of the absolute value of the negative pressure P s and the positive pressure P d , which with the correction factor K is multiplied.
- the basic course of the pressures in a vacuum cleaner 1 over the volume flow gamma is shown in FIG. 5 in an example.
- the characteristic of the overpressure after the fan 10 is denoted by P d .
- the characteristic curve P s1 shows the course of the negative pressure in the suction channel 28 with a preset max. Performance and new filter bag 9.
- a further characteristic curve P s3 shifted parallel to this characteristic curve also shows the course of the negative pressure with a new filter bag 9, but with a preset min. Fan motor power 11.
- a characteristic curve P s2 is shown, which represents the course of the negative pressure with a preset maximum output and a blocked filter bag 9.
- the diagram is based on two given volume flows gamma 'and gamma' 'explained in more detail, the volume flows in direct dependence on the f-number of the the respective attachment used.
- a reduction in the volume flow results in a reduction in the overpressure P d with a simultaneous increase in the respective underpressure P s .
- absolute vacuum values a 1 ′ , a 2 ′ and a 3 ′ are thus obtained for the respective cases. It can be seen that the result of adding the absolute values at a volume flow gamma '' is greater than when adding the absolute values at a volume flow gamma '. This is particularly the case when, for example, as shown by the characteristic curve P s2 , a max. Blower power is preset and the filter bag 9 is largely filled.
- the absolute values a 3 ' and b' add up to an absolute pressure value which is greater than when the absolute values a 2 and b are added in the case of a volume flow gamma '.
- a greater relative suction power is displayed, with the same preset blower power and degree of clogging of the filter bag 9. This is desirable because the air velocities z. B. in a crevice nozzle even with a largely clogged filter bag 9 are still high enough to absorb dust.
- the relative suction power of the vacuum cleaner 1 when the filter bag 9 is full is accordingly greater with smaller f-numbers than with larger f-numbers.
- the diagram shown in FIG. 6 shows, in a simplified manner, the dependency on the preset blower output, the degree of filling of the filter bag 9 and the f-number B of the front attachment on the display value A.
- K 1 denotes a display characteristic curve, with a preset max. Blower output and new filter bag 9.
- the characteristic curve K 3 shows the course at a preset min. Blower output and new filter bag 9.
- K 2 and K 4 display characteristic curves are designated which represent the course of the display when the filter bag 9 is full, the maximum blower output being preset at K 2 and the minimum blower output being preset at K 4 .
- the characteristics of the suction power display 14 can be adapted to the desired display characteristics. It can be seen from FIG. 6 that the characteristic curves K 1 and K 3, regardless of the number of f-stops, each result in a display value which corresponds to the preset value of the blower output. This means that with a preset max. Blower power, the suction power display 14 always shows a relative suction power of 100% in accordance with the characteristic curve K 1 regardless of the number of f-stops. The display falls correspondingly lower at the preset min. Blower output. Regardless of the f-number, a value of the relative suction power of 50%, for example, is always displayed here.
- the characteristic curve K 2 depends on the number of f-stops B. It can be seen that the display value A is always below the display value when the filter bag 9 is empty (characteristic curve K 1 ), the relative suction power being displayed with a smaller f-number is larger than with a larger f-number.
- the characteristic curve K 4 (preset minimum blower output and clogged filter bag 9) is essentially the same as the characteristic curve K 2 . However, the curve is flatter than the latter. It can also be seen here that the display of the relative suction power is always below the value of the characteristic curve K 3 and that a larger relative suction power is displayed with a small number of f-stops.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Electric Vacuum Cleaner (AREA)
- Catching Or Destruction (AREA)
- Massaging Devices (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Description
- Fig. 1
- einen erfindungsgemäßen Staubsauger mit einer in einem Gerätegehäuse angeordneten Saugleistungsanzeige,
- Fig. 2
- eine schematische Darstellung des Gerätegehäuses, partiell au gebrochen, zur Darstellung der Anordnung der Saugleistungsanzeige in dem Gerätegehäuse,
- Fig. 3
- eine Ausschnittsdarstellung des Gerätegehäuses im Bereich der Saugleistungsanzeige,
- Fig. 4
- den Schnitt gemäß der Linie IV-IV in Fig. 3,
- Fig. 5
- ein Diagramm zur Darstellung des prinzipiellen Verlaufs eines Unterdruckes in einem Saugkanal vor einem Gebläse und eines Überdruckes nach dem Gebläse und
- Fig. 6
- verschiedene Anzeigenkennlinien der Saugleistungsanzeige.
Claims (6)
- Staubsauger (1) mit einem Gebläse (10), einem Filterbeutel (9) und einer Saugleistungsanzeige (14), die durch eine Erfassung der Druckdifferenz gesteuert wird, wobei die Druckdifferenz aus dem Unterdruck (Ps) in einem Saugkanal (28) vor dem Filterbeutel (9) und dem Überdruck (Pd) nach dem Gebläse (10) gebildet ist, dadurch gekennzeichnet, daß die Drücke (Ps und Pd) auf die gegenüberliegenden Flächen (17, 18) einer in Abhängigkeit der Drücke (Ps und Pd) beweglichen, geschlossenen Scheibe (16) geschaltet sind.
- Staubsauger nach Anspruch 1, dadurch gekennzeichnet, daß die Druckabnahme nach dem Gebläse (10), jedoch vor nachfolgenden Strömungswiderständen und ggf. vor einem Ausblasfilterelement (32) erfolgt.
- Staubsauger nach Anspruch 1, dadurch gekennzeichnet, daß dem Unterdruck (Ps) ein Korrekturfaktor (K) aufgeschaltet ist.
- Staubsauger nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Saugleistungsanzeige (14) eine Analoganzeige ist.
- Staubsauger nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Scheibe (16) einseitig federbeaufschlagt ist.
- Staubsauger nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Korrekturfaktor durch unterschiedliche Anschlußflächen (17, 18) für die beiden Drücke (Ps und Pd) auf den gegenüberliegenden Seiten der Scheibe (16) eingestellt ist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI9530070T SI0755216T1 (en) | 1994-04-15 | 1995-03-27 | Vacuum cleaner with suction power indicator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4413225A DE4413225A1 (de) | 1994-04-15 | 1994-04-15 | Staubsauger mit einer Saugleistungsanzeige |
| DE4413225 | 1994-04-15 | ||
| PCT/EP1995/001147 WO1995028122A1 (de) | 1994-04-15 | 1995-03-27 | Staubsauger mit einer saugleistungsanzeige |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0755216A1 EP0755216A1 (de) | 1997-01-29 |
| EP0755216B1 true EP0755216B1 (de) | 1998-05-27 |
Family
ID=6515619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95915164A Expired - Lifetime EP0755216B1 (de) | 1994-04-15 | 1995-03-27 | Staubsauger mit einer saugleistungsanzeige |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0755216B1 (de) |
| AT (1) | ATE166554T1 (de) |
| AU (1) | AU2214895A (de) |
| DE (2) | DE4413225A1 (de) |
| DK (1) | DK0755216T3 (de) |
| ES (1) | ES2117417T3 (de) |
| WO (1) | WO1995028122A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103561623A (zh) * | 2011-03-22 | 2014-02-05 | 欧罗菲利特斯控股公司 | 包括真空清洁器和过滤袋的真空清洁设备 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008022229A1 (de) * | 2008-05-06 | 2009-11-19 | Hydac Electronic Gmbh | Vorrichtung zum Messen einer Druckdifferenz |
| EP2193738A1 (de) * | 2008-12-04 | 2010-06-09 | Koninklijke Philips Electronics N.V. | Staubsauger mit einer Leistungsanzeige zur Ermittlung eines Schwellenwertes der Saugleistung |
| DK3072430T3 (en) * | 2012-03-22 | 2017-07-24 | Eurofilters Holding Nv | DUST CLEANING DEVICE WITH A DUST CLEANER AND A FILTER BAG |
| DE102015100636B4 (de) | 2015-01-16 | 2023-12-21 | Vorwerk & Co. Interholding Gmbh | Staubsauger mit Bodenerkennung und Verfahren zum Betreiben eines Staubsaugers |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE409647B (sv) * | 1978-01-11 | 1979-09-03 | Electrolux Ab | Indikatoranordning |
| US4733431A (en) * | 1986-12-09 | 1988-03-29 | Whirlpool Corporation | Vacuum cleaner with performance monitoring system |
| JPH01285235A (ja) * | 1988-05-13 | 1989-11-16 | Tokyo Electric Co Ltd | 電気掃除機 |
| SE461189B (sv) * | 1988-05-25 | 1990-01-22 | Electrolux Ab | Dammsugare |
| GB2225220B (en) * | 1988-10-19 | 1992-08-26 | Hoover Plc | Suction cleaner |
| DE3902647A1 (de) * | 1989-01-21 | 1990-08-02 | Interlava Ag | Vorrichtung zur automatischen saugleistungssteuerung eines staubsaugers |
| NL9002541A (nl) * | 1990-11-22 | 1992-06-16 | Philips Nv | Drukverschilindikator. |
| JPH05245080A (ja) * | 1992-03-09 | 1993-09-24 | Matsushita Electric Ind Co Ltd | 電気掃除機 |
| DE4304264A1 (de) * | 1993-02-12 | 1994-08-18 | Siemens Ag | Eigendiagnose für einen Staubsauger und Verfahren zu deren Betrieb |
-
1994
- 1994-04-15 DE DE4413225A patent/DE4413225A1/de not_active Withdrawn
-
1995
- 1995-03-27 DE DE59502352T patent/DE59502352D1/de not_active Expired - Fee Related
- 1995-03-27 EP EP95915164A patent/EP0755216B1/de not_active Expired - Lifetime
- 1995-03-27 AU AU22148/95A patent/AU2214895A/en not_active Abandoned
- 1995-03-27 AT AT95915164T patent/ATE166554T1/de not_active IP Right Cessation
- 1995-03-27 ES ES95915164T patent/ES2117417T3/es not_active Expired - Lifetime
- 1995-03-27 WO PCT/EP1995/001147 patent/WO1995028122A1/de not_active Ceased
- 1995-03-27 DK DK95915164T patent/DK0755216T3/da active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103561623A (zh) * | 2011-03-22 | 2014-02-05 | 欧罗菲利特斯控股公司 | 包括真空清洁器和过滤袋的真空清洁设备 |
| CN103561623B (zh) * | 2011-03-22 | 2016-11-23 | 欧罗菲利特斯控股公司 | 包括真空清洁器和过滤袋的真空清洁设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1995028122A1 (de) | 1995-10-26 |
| EP0755216A1 (de) | 1997-01-29 |
| DE59502352D1 (de) | 1998-07-02 |
| ES2117417T3 (es) | 1998-08-01 |
| DK0755216T3 (da) | 1999-03-22 |
| DE4413225A1 (de) | 1995-10-19 |
| AU2214895A (en) | 1995-11-10 |
| ATE166554T1 (de) | 1998-06-15 |
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