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
  • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action
• • 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
  • A47L9/22—Mountings for motor fan assemblies

Definitions

• the invention relates to a vacuum cleaner with a vacuum valve according to the preamble of claim 1.
• a vacuum cleaner on the market has a vacuum-controlled valve, which opens a secondary air duct when exceeding a permissible maximum negative pressure, so that, for example, in the case of blockages in the dust filter area further air can be sucked through the motor / blower unit. Since the fan motor is cooled by the suction air flow, it must be ensured that the motor / blower unit always flows through a minimum air flow. If the air intake, for example due to blockages in the region of the nozzle, the Saugroheres, the suction hose or the dust filter bag is interrupted, it may come without such Mau Kunststoffansaugung overheating of the motor / blower unit.
• a cup-shaped valve body In a vacuum cleaner on the market a cup-shaped valve body is biased by a spring coil in its closed position used in a valve housing.
• the valve housing is made of plastic and latched by means of snap hooks on an electrical circuit board of the vacuum cleaner.
• care must be taken to ensure that an inlet opening provided on the valve housing and an outlet opening are largely air-tightly coupled to a secondary air channel provided in the housing of the vacuum cleaner. Due to the structural separation of the secondary air duct and the valve housing assembly is difficult and there is a risk that the valve housing is not sufficiently airtight coupled to the secondary air duct. Incorrect air flows can lead to a faulty function of the vacuum valve.
• the object of the invention is to provide a vacuum cleaner with a vacuum valve, which can be mounted in a simple and reliable manner.
• a further object of the invention is to make the function of the vacuum valve reliable. This object is achieved in that the valve housing is provided on at least one housing part of the vacuum cleaner. By the valve housing is already provided to a housing part of the vacuum cleaner, a separate mounting of the valve housing is unnecessary. Furthermore, the valve housing provided on the housing part may already be connected to the secondary air duct. Due to the already predefined mutual position of the valve housing and housing part of the vacuum cleaner, a more reliable sealing between the valve housing and the auxiliary air channel is ensured.
• the valve housing is formed at least in two parts with a first valve housing part and a second valve housing part, wherein for mounting the valve housing by assembling a first housing part and a second housing part of the vacuum cleaner, the first valve housing part on the first housing part and the second valve housing part on the second housing part is provided.
• the valve housing is made in two parts and each of the valve housing is provided on another housing part of the vacuum cleaner, the assembly of the valve housing by the assembly step of assembling the housing parts of the vacuum cleaner can take place. This eliminates a separate assembly step for the assembly of the valve body parts. Since at least one mounting step is required during assembly of the vacuum cleaner to assemble two housing parts of the vacuum cleaner, this assembly step can be used simultaneously for mounting the valve housing parts.
• the two valve housing parts are arranged on those housing parts of the vacuum cleaner, which already receive parts of the secondary air duct. Ie. an intake opening of a first valve housing part and an outflow opening of a second valve housing part may already be formed fixedly connected to the secondary air passage. This eliminates a separate seal between the valve housing and secondary air duct. By eliminating a separate seal, the reliability of the function of the vacuum valve is increased, since it can lead to fewer failures due to unwanted leakage.
• the first valve housing part is integrally formed on the first housing part and / or the second valve housing part on the second housing part. If the housing part and the valve housing parts are manufactured as plastic parts, then each valve housing part in the plastic injection molding process directly on the a housing part are formed. Due to the direct molding of the valve housing parts to the housing parts of the vacuum cleaner accounts for separate assembly steps for attaching the valve housing parts to the housing parts of the vacuum cleaner and separate fasteners are no longer required. Due to the additionally achieved reduction in the number of parts, the overall production of the vacuum cleaner is more cost-effective.
• the first valve housing part is provided on a Gebläsekapselteil.
• an additional second inner housing is provided in addition to the sealed installation of the motor / blower unit in the housing of the vacuum cleaner, which surrounds the motor / blower unit to an additional by forming a second sound-insulating wall To achieve noise reduction.
• Such an additional housing, which surrounds the motor / blower unit is also referred to as a blower capsule. Since the secondary air channel with a flow side to the interior of the fan capsule must be connected, it is particularly advantageous if a valve housing part is already formed on a Gebläsekapselteil. This achieves a direct connection of the vacuum valve to the secondary air duct.
• the second valve housing part is provided on a housing space cap.
• a blower cap while an outer housing part of the vacuum cleaner is understood, which surrounds the fan capsule of the motor / blower unit.
• the blower cap can also form the visible outer wall of the vacuum cleaner.
• the secondary air duct For sucking in fresh air via the secondary air duct, the secondary air duct must be fluidically connected to the environment. Ie. at least on an outer housing part of the vacuum cleaner, a so-called secondary air opening is required to be sucked into the secondary air duct via the secondary air from the environment when the vacuum valve is open.
• a so-called secondary air opening is required to be sucked into the secondary air duct via the secondary air from the environment when the vacuum valve is open.
• valve housing part and the blower cap made of plastic, these two parts can also be in a simple manner in the plastic injection molding process - A -
• the second valve housing part is formed directly on the blower cap.
• valve housing is formed at least in two parts, then a seal is required between the two valve housing parts.
• the first and the second valve housing part can be sealed in an assembled position of the housing parts of the vacuum cleaner by means of a labyrinth seal.
• a labyrinth seal provided according to the invention, a separate sealing component is dispensable. By eliminating a separate sealing component and the Monatage is simplified because no additional seal between the valve body parts must be inserted.
• a labyrinth seal according to the invention sufficient sealing between the valve body parts is achieved solely by joining the housing parts of the vacuum cleaner.
• the invention further provides for pre-assemble a spring-biased valve lifter on one of the valve housing parts.
• a locking means between the spring-biased valve stem in the valve housing part For preassembled holding the spring-biased valve stem in the valve housing part a locking means between
• Valve tappet and valve housing part provided. To install the valve stem, first a spring element is inserted into the valve housing part and the valve stem is attached. In order to prevent that the spring-biased valve stem is moved out of the valve housing part by the spring force again, this engages behind
• Valve body part firmly.
• the spring element and the valve tappet can already be preassembled in the housing part of the vacuum cleaner.
• final assembly of the vacuum cleaner then only the respective housing part of the vacuum cleaner is to be mounted.
• the latching means is preferably formed by a latching lug of the valve housing part which engages behind the valve plunger. If the valve housing part or the housing part of the vacuum cleaner is made of plastic, the latching means, which has the latching lug, can be formed directly on the valve housing part or the housing part of the vacuum cleaner. After the valve body parts of the vacuum valve are assembled together, the function of the locking means for retaining the spring-loaded valve stem is no longer necessary. The spring-biased valve lifter can then be held in position solely by the closed valve housing. Thus, it is provided in one embodiment of the invention that the detent is relieved in assembled position of the housing parts of the vacuum cleaner, or the valve housing parts of the spring-biased valve lifter.
• the spring-biased valve tappet can have a circular cross section and the valve housing part can have an oval or elliptical cross section.
• the valve lifter When the circular valve lifter is inserted in the oval or elliptical valve housing part, the valve lifter does not completely seal the cross section of the valve housing. Between the circular valve stem and the oval or elliptical valve housing part remain two crescent-shaped cross-sections, which form a bypass.
• valve housing part may have a circular cross section in which an oval or elliptical valve tappet is inserted.
• Figure 1 is a partially sectioned side view of a Gebläsekapselteils with molded first valve housing part;
• FIG. 2 is a sectional view of a blower hood according to the invention with molded second valve housing part;
• FIG. 3 shows a plan view of the blower capsule part according to FIG. 1;
• Figure 4 is a partial sectional view through an inventive vacuum valve with spring-biased latched valve lifter.
• FIG. 1 shows a blower capsule part 1.
• the fan part 1 is hood-shaped.
• the hood-shaped Gebläsekapselteil 1 has a top wall 2, in which an exhaust opening 3 is inserted.
• the blow-out opening 3 encloses a receptacle 4, which is designed to receive a blow-off filter.
• a receptacle 4 which is designed to receive a blow-off filter.
• the unillustrated exhaust filter in the receptacle 4 is releasably held.
• side walls 6 of the hood-shaped fan part 1 extend downwards.
• the circumferential side walls 6 have a free edge 7 to which a cross-sectionally U-shaped channel 8 is provided.
• a sealant in particular a sealing cord 9 used.
• the channel 8 together with an unillustrated edge of a lower part of the vacuum cleaner form a labyrinth seal.
• fastening tabs 10 are formed on the side wall 6 and the channel 8 .
• fasteners such as screws can be used whereby the fan capsule part 1 can be attached pressure-tight by means of the fastening tabs 10 on the not shown lower shell of the vacuum cleaner.
• a first valve housing part 12 is integrally formed.
• the valve housing part 12 is cup-shaped.
• the pot-shaped valve housing part 12 has a valve bottom 13, followed by the vertical pot walls 14.
• the pot wall 14 has a cross-sectionally elliptical basic shape.
• guide ribs 15 for a valve lifter 16 shown in more detail in Figure 4 are further formed on the pot wall 14, a locking means 17.
• the latching means 17 has a latching nose 18 which engages over the valve plunger 16 in the assembled state.
• a downstream outlet opening 19 is provided on the valve bottom 13.
• the sealing wall 20 is seated on the entrance of a secondary air duct, not shown, on the vacuum cleaner housing.
• the sealing wall 20 is arranged at an opposite end of the valve housing part 12 is formed on the pot wall 14, a sealing edge 21.
• the sealing edge 21 brings in the assembled state of the blower capsule part. 1 with a blower cap 22 in a labyrinth channel 23 of a second valve housing part 24 a.
• the second valve housing part 24 is shown in more detail in FIG.
• the blower hood 22 shown in Figure 2 is like the blower capsule part 1 hood-shaped.
• the second valve housing part 24 is integrally formed on an inner side of the cap wall 25, the second valve housing part 24 is integrally formed.
• the second valve housing part has a cover wall 26 to which the downwardly directed labyrinth channel 23 is integrally formed.
• a pipe section 27 is integrally formed on the cover wall 26 coaxially with the labyrinth channel 23. A free edge 28 of the pipe section 27 is seated in the mounted of the vacuum valve on the bottom surface of the valve stem 16 sealingly.
• FIG. 3 shows the fan capsule part 1 from FIG. 1 in plan view.
• the pot wall 14 of the valve housing part 12 has an oval or elliptical shape.
• the guide ribs 15 are formed smaller in the vicinity of the short radius of the elliptical cross section than in the vicinity of the large radius of the elliptical cross section.
• the different size of the guide ribs 15 serves to receive a valve stem 16 with a circular cross-section.
• FIG. 4 shows a partial section of the blower capsule part 1 according to FIG. 1.
• a seat 30 is provided, on which a separate spring element 31 can be placed.
• the seat 30 may be formed directly on the valve bottom 13 of the valve housing part 12.
• the spring element 31 may be formed as a separate component such as a metallic spring coil, but the spring element may, for example, be formed directly on the valve stem 16.
• the spring element as the valve stem 16 is formed of plastic and formed of plastic spring element formed on the underside of the top surface of the valve stem 16.
• valve tappet 16 After putting on the separate spring element 31 on the seat 30 or after direct insertion of the valve stem 16 in the valve housing part 12 slides the valve stem 16 along the guide ribs 15 of the cup walls 14 down until the locking lug 18 of the locking means 17 is locked behind the top surface of the valve stem 16. In the latched position of the valve tappet shown in FIG. 4, it is prevented that the mechanical prestress of the spring element 31 pushes the valve tappet 16 out of the valve housing part 12. In this preassembled position of the valve tappet 16, the valve tappet 16 can be mounted together with the fan capsule part 1.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Electric Suction Cleaners (AREA)
• Self-Closing Valves And Venting Or Aerating Valves (AREA)
• Details Of Valves (AREA)
• Filtering Of Dispersed Particles In Gases (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=35447774

Family Applications (1)

Country Status (7)

Families Citing this family (6)

Citations (5)

Family Cites Families (4)

• 2004
  • 2004-08-24 DE DE102004040985A patent/DE102004040985A1/de not_active Withdrawn
• 2005
  • 2005-08-04 EP EP05779845A patent/EP1784105B1/de not_active Not-in-force
  • 2005-08-04 AT AT05779845T patent/ATE527925T1/de active
  • 2005-08-04 ES ES05779845T patent/ES2372059T3/es active Active
  • 2005-08-04 RU RU2007105132/12A patent/RU2385149C2/ru not_active IP Right Cessation
  • 2005-08-04 CN CN2005800283368A patent/CN101005784B/zh not_active Expired - Fee Related
  • 2005-08-04 WO PCT/EP2005/053845 patent/WO2006021498A1/de active Application Filing

Patent Citations (5)

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