EP1981388A1 - Aspirateur avec protection electrique specifique - Google Patents
Aspirateur avec protection electrique specifiqueInfo
- Publication number
- EP1981388A1 EP1981388A1 EP07730844A EP07730844A EP1981388A1 EP 1981388 A1 EP1981388 A1 EP 1981388A1 EP 07730844 A EP07730844 A EP 07730844A EP 07730844 A EP07730844 A EP 07730844A EP 1981388 A1 EP1981388 A1 EP 1981388A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vacuum cleaner
- connections
- polypropylene
- upper body
- housing
- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
- A47L5/362—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the horizontal type, e.g. canister or sledge type
-
- 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
- A47L9/26—Incorporation of winding devices for electric cables
-
- 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
- A47L9/2842—Suction motors or blowers
-
- 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
Definitions
- the invention relates to the field of household appliances vacuum cleaners and more particularly the structure of a vacuum cleaner.
- the plastics used in the vacuum cleaners are as thin as possible so as to limit the weight of the apparatus, and reduce the effort required for handling the vacuum cleaner during its use, this manipulation being a major cause of fatigue, for example when floors are to be climbed or when stairs are to be cleaned.
- a first problem encountered during the manufacture of a vacuum cleaner is therefore the reduction of the weight of the device, this problem being a permanent concern for vacuum cleaner manufacturers.
- the desired weight reduction results in the thinning of the hull and body that goes against the strength of the device.
- the weight of plastic material used for the manufacture of a vacuum cleaner quickly reaches a limit determined by the strength of the assembly.
- a second problem is to maintain the strength of the hull and the body while greatly reducing the weight of plastic material used and that of the vacuum cleaner.
- Vacuuming in the home is not usually considered a very pleasant task and therefore the appliance is used without care. It often happens that the device hits furniture, walls or various objects placed in the home. On this occasion, given the rigidity of the frame of the vacuum cleaner, the shocked part is often damaged.
- a third problem facing vacuum cleaner manufacturers is thus to combine good mechanical characteristics of the frame with possible shock absorption to limit the effects of imprudent handling.
- One solution to this problem can be found in particular by rubber bands surrounding, like a belt, the body of the apparatus. Such a solution generates a significant additional cost.
- a fourth problem that arises is to manufacture a vacuum cleaner whose materials can be easily, and if possible completely, recycled.
- the invention therefore aims to solve these main difficulties, that is to say to achieve a low weight vacuum cleaner, high strength, a lower noise level than is known for this type of device, can absorb shocks and has a high "recyclability" at end of life.
- the vacuum cleaner comprises at least one lower body and one upper body, said bodies including in particular a cord winder electrical, an electric motor connected, via electrical connections and a control circuit, to a power cord terminated by a plug, said cord being disposed on the winder, characterized in that the lower body and / or the body upper is made of expanded polypropylene, and in that at least one electrical connection is surrounded by a specific protection made of a rigid material and electrical insulator.
- body of the device is meant the visible outer part of the device, which can take various names: housing, shell, frame ....
- Expanded polypropylene is formed of beads which are molded in the object using a press in the presence of steam. Mainly used as shock absorbing material, especially recently in the automobile
- the EPP has multiple qualities: temperature resistance up to 110 ° C, excellent stability, lightness, impact resistance, ability to be recycled, etc. that makes it attractive.
- its low mechanical strength is currently only a complementary material when making subsets.
- the present invention thus can present constituent parts of the body of the vacuum cleaner, requiring a certain rigidity, strength and mechanical strength, made of EPP, which is not originally provided for this purpose.
- Another object of the present invention is to favor polypropylene in the choice of the plastic material.
- Another object of the invention is to use more than 90% of a single type of plastic material, polypropylene, throughout the body of the vacuum cleaner.
- Polypropylene can then be used in two forms: conventional polypropylene (PP) which has the conventional properties of plastics and expanded polypropylene (EPP).
- the expanded nature of the material can allow to pierce quite easily said body with a tip. If such an operation takes place, for example during a shock with a metal rod, such as a knitting needle, it is necessary to prevent the latter from coming into contact with the electrically active parts that constitute the electrical connections. It should be noted that such an accident has no consequence on the robustness of the body of the device, the plasticity of the EPP allowing the material to resume its shape after removal of the object without real damage to the structure.
- rigid material a material resistant to mechanical stresses, this resistance may however cause some deformation of the material, in particular a material passing the standard 60-335-1 Art 30 in relation to the standard IEC 60-695-10-2 which provides for a penetration resistance test of a 2.5mm diameter ball under a 20Newton force having an imprint less than 2mm.
- the hardness of this material is greater than or equal to 5 Hv.
- this protection consists of a fairing made of unexpanded polypropylene, in order to reduce the diversity of the plastics used.
- the protected electrical connections are the on / off button connections, the electronic control board connections, the electric motor connections as well as the cord winder connections.
- the protection of the connections of the electronic card extends into a housing surrounding the motor, said housing being pierced with a multitude of air exhaust openings.
- a fairing is made which protects the motor's electrical connections and also allows the noise generated by the motor to be confined. This noise is further reduced by the use of a breathable foam disposed in front of the air exhaust openings of the surrounding casing. engine.
- Figure 1 is a perspective view of a vacuum cleaner according to the present invention.
- Figure 2 is an exploded view of the different main parts of the vacuum cleaner.
- Figure 3 is an exploded view, from below and in perspective, of certain parts of the vacuum cleaner.
- Figure 4 is an exploded view, in perspective, of the engine fairing of the vacuum cleaner.
- Figure 5 is a top view of the assembled vacuum, where some parts have been omitted.
- Figure 6 is an exploded view, from above, of some parts of the vacuum cleaner.
- Figure 7 is a bottom view, in perspective, of certain parts of the vacuum cleaner.
- the vacuum cleaner 1 consists of a vacuum cleaner body composed of three main parts manufactured separately and assembled thereafter:
- a small lower body 2 disposing; o a housing 20 of the lower part of the engine, o a location 22 for the rear actuators such as wheels or wheels (not shown), o an air outlet 26 of the vacuum cleaner, o a housing 30 of the lower part of a cable winder 10,
- An upper body 4 comprising: a space 40 arranged for receiving a filter dust bag, o a housing 42 of the upper part of the cable winder 10, o a location 48 for the front actuators (not shown) of the vacuum cleaner, o a recess 44 of housing of the upper part of the engine, together with the housing 20 of the lower body 2, an insert 45 allowing the connection of suction pipes, this insert cooperating with a bag support 46 disposed in the space 40.
- a rear part 50 having a large carrying handle 52 of the vacuum cleaner.
- the constituent material of the vacuum cleaner ie at least the upper body 4, and preferably also the lower body 2 and the rear part 50, is expanded polypropylene (EPP).
- EPP expanded polypropylene
- the rear piece 50 has an unexpanded PP core allowing the piece 50 to be mechanically resistant to a possible violent impact on said handle.
- the low mechanical strength of the EPP required considerably increase the thickness of the walls to have sufficient strength. Surprisingly, however, even if the volume of material required then causes a larger vacuum cleaner than normal, the mass of plastic material can be greatly reduced, and the weight of the final vacuum can be halved.
- the side walls of the housing 40 of the upper body 4 have thicknesses varying from approximately 15 mm for the thickness a of the partition wall with the engine compartment, to more than
- the thickness of this wall is not constant over the entire height of the upper body. It is maximum in an area 5, about halfway up, at the connection, by the insert 45 with the suction pipe, so that the tensile force, when moving the device, is well absorbed by the upper body.
- the thickness b of this wall at the upper level of the body 4 is about 30 mm.
- zone 5 this thickness can even reach 60 mm at the level of the insert 45.
- the latter by sandwiching the body 4 with the support 46 of the bag, creates, during the displacement of the vacuum cleaner, a significant tension in the front part of the upper body, requiring a large thickness of the wall at this level.
- the high flexibility of the EPP allows for improved shock absorption compared to other plastics traditionally used to make vacuum cleaners.
- This great flexibility is associated, depending on the degree of expansion, an elastic memory of the material, which also has significant advantages in terms of assembly of the different complementary parts fitted to the body of the device. Indeed, it is thus possible to articulate for example the different lids without hinge and lock simply by deforming the material. This curious particularity also makes it possible to fix inserts, by interlocking, without difficulty.
- a cover 80 is made of expanded polypropylene and is disposed on the upper body.
- the mechanical strength of the cover on the upper body 4 of the vacuum cleaner is obtained by interlocking, by deforming the material, as previously explained.
- This lid allows the closure of the dust bag housing and directs air from the bag to the engine block.
- this cover can receive, in its thickness, various suction accessories such as small brush, suction lolly, etc.
- the holding of the upper body on the lower body is provided by rods 12, 13 bearing under the lower body 2.
- the rods 12 engage with the rear piece 50, while the rod 13 is linked to a rigid piece 90 disposed on the upper body 4.
- the supports of the rods 12 and 13 under the lower body 2 are preferably associated with the wheels, not shown, of the vacuum cleaner.
- the latter is associated with a platform 11 for refocusing the wheel relative to the entire vacuum cleaner.
- the actual assembly of the upper body on the lower body consists, according to the example shown, to screw the rods 12 and 13 in corresponding tubes from the parts 90 and 50, the tubes and / or rods passing through a portion of 4.
- Figures 2 and 7 particularly show such a tube 14 from the piece 90, this tube receiving the rod 13 which passes through the lower body 2 through the orifice 24.
- the screwing thus makes it possible to compress, by means of the parts 90 and 50, the upper body on the lower body, the relatively large deformation of the PPE, as previously described, making it possible to seal between the lower and upper bodies, without a specific seal.
- the rigid part 90 may have very different shapes and conformations, ranging from a piece covering substantially the entire width of the upper body, as shown, behind the dust bag compartment, to a more indented part. It is even possible to consider the realization of several independent parts.
- the bearing surface under the lower body can be provided by a plate more or less extended, like the rigid part 11. It is then possible to have a rigid part under the lower body and more punctual support points on the upper body.
- the rigid part 90 disposed on the upper body offers the advantage of being able to perform other functions.
- the rigid part 90 presents the locations of the on / off control button 60, in connection with a switch 62, as well as that of the rewind button 68 of the electric cable on the reel 10.
- the rigid piece 90 also has a housing 92 for a housing 94 containing a pleated filter HEPA type, for filtering the air from the dust bag, before entering the engine.
- the indicator lights, control and operating elements 60, 68, as well as the rigid piece 90, the tubes 12, 13 and the rollers, will preferably be made of unexpanded polypropylene.
- the electric power supply circuit of the motor from a household electrical outlet starts with the power cord of the vacuum cleaner, mounted on the winder 10. Electrical wires out of the fixed part of the winder to connect to two terminals 72 of an electronic card 70.
- Two other terminals 72 of the electronic card 70 are used for connection with the on / off button. Finally two other terminals 72 allow the connection of the motor in the electrical circuit.
- the vacuum cleaner 1 comprises protections of the active parts of the apparatus, that is to say electrical connections of the various elements of the motor supply circuit.
- the winder 10 comprises a casing 100 covering the rear part of the winder.
- This housing thus covers the connection of the electrical wires at the level of the reel.
- the power supply son come out of this casing in its upper part, being protected by a specific sheath 110, illustrated in FIG. 7, which may be a single sheath gathering the two supply wires or a double sheath, each wire being individually protected.
- This sheath then enters a vertical duct 96 directed downwards and issuing from the rigid part 90.
- This duct 96 receives the upper part of a chimney 124, as clearly visible in FIG. 5, showing on the upper body 4, the location 49 receiving the duct 96, location within which is disposed the chimney 124.
- This chimney is an extension of a part 122 constituting the cover of the housing 120 of the engine (no represent).
- This housing is advantageously made of rigid parts made of unexpanded polypropylene.
- the cover 122 also has orifices 126 for the entry of air, as well as a seal 128, which makes it possible to seal the engine fairing during the compression of the lower and upper bodies.
- the chimney 124 fully accommodates the electronic card 70.
- the power supply son from the retractor join two of the terminals 72 of the electronic card where they are connected to said card.
- the housing 120 also comprises a substantially cylindrical fairing 130, surrounding the motor and on which is fixed the cover 122 by a bayonet type assembly.
- This fairing in association with the chimney 124, protects the terminals 72 as well as the moving parts of the motor. It also allows to confine the noise generated by the engine.
- the fairing comprises a multitude of openings 132 of air exhaust, these openings, of cylindrical shape, having a diameter of the order of 2.5 mm.
- a foam 134 is disposed in front of the openings 132, so that the air leaving the shroud 130 passes through such a foam before reaching the outlet 26 of the lower body 2.
- This outlet is advantageously made opposite the openings 132 in order to extend the air circuit, which is favorable to the reduction of noise.
- An improvement of this acoustic reduction also consists in arranging a foam 136 in a support 138, in front of the air outlet 26, as shown in FIGS. 4 and 6.
- the other two terminals 72 available on the electronic card 70 allow the connection of the on / off switch 62 operated by the user with the control button 60.
- this switch 62 is arranged in a housing 64 made of non-polypropylene expanded, to protect the electrical connections of said switch.
- the electrical wires connecting the reel to the electronic card the wires connecting the switch 62 to the electronic card 70 are protected by a sheath 66 connecting the casing 64 to the duct 96.
- the active parts of the electrical supply circuit of the engine are thus protected by specific fairings, preventing their access by a blunt object that could accidentally cross the frame of the vacuum cleaner.
- the electrical wires are also protected by sheaths.
- fairings and protective housings are made of unexpanded polypropylene to limit the diversity of materials used.
- any other material having the required qualities of electrical insulation and good mechanical strength, including resistance to the penetration of a tip.
- expanded polypropylene As far as expanded polypropylene is concerned, it will be used at degrees of expansion defined by the amount of material (polypropylene) per liter. It will be preferable to use contents of between 40 g and 80 g of material per liter.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Electric Vacuum Cleaner (AREA)
- Electric Suction Cleaners (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0600954A FR2896681B1 (fr) | 2006-02-02 | 2006-02-02 | Aspirateur |
| PCT/FR2007/000124 WO2007088261A1 (fr) | 2006-02-02 | 2007-01-23 | Aspirateur avec protection electrique specifique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1981388A1 true EP1981388A1 (fr) | 2008-10-22 |
| EP1981388B1 EP1981388B1 (fr) | 2017-10-18 |
Family
ID=36997695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07730844.3A Not-in-force EP1981388B1 (fr) | 2006-02-02 | 2007-01-23 | Aspirateur avec protection electrique spécifique |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1981388B1 (fr) |
| FR (1) | FR2896681B1 (fr) |
| WO (1) | WO2007088261A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008003351B4 (de) * | 2008-01-08 | 2011-05-19 | Miele & Cie. Kg | System zur Bestromung eines elektrischen Geräts mit einer Kabeltrommel, Staubsauger mit einem solchen System und Verfahren zur Herstellung eines Staubsaugers |
| FR2931351B1 (fr) * | 2008-05-21 | 2010-07-30 | Seb Sa | Aspirateur |
| EP2145698B1 (fr) * | 2008-07-18 | 2012-09-12 | Nilfisk-Advance A/S | Panneau de commande pour nettoyeur haute pression |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01126939A (ja) * | 1987-11-12 | 1989-05-19 | Sanyo Electric Co Ltd | 電気掃除機 |
| JP2664244B2 (ja) * | 1989-04-22 | 1997-10-15 | タイガースポリマー株式会社 | 消音性ハウジング |
| US5479676A (en) * | 1994-05-12 | 1996-01-02 | Electrolux Corporation | Vacuum cleaner |
-
2006
- 2006-02-02 FR FR0600954A patent/FR2896681B1/fr not_active Expired - Fee Related
-
2007
- 2007-01-23 EP EP07730844.3A patent/EP1981388B1/fr not_active Not-in-force
- 2007-01-23 WO PCT/FR2007/000124 patent/WO2007088261A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007088261A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1981388B1 (fr) | 2017-10-18 |
| FR2896681A1 (fr) | 2007-08-03 |
| FR2896681B1 (fr) | 2008-03-14 |
| WO2007088261A1 (fr) | 2007-08-09 |
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