CN111789526A

CN111789526A - Portable dust collector

Info

Publication number: CN111789526A
Application number: CN202010259803.4A
Authority: CN
Inventors: 伯特兰·埃斯卡莱特
Original assignee: SEB SA
Current assignee: SEB SA
Priority date: 2019-04-05
Filing date: 2020-04-03
Publication date: 2020-10-20
Anticipated expiration: 2040-04-03
Also published as: FR3094622A1; EP4241640A3; EP4241640A2; EP3718452B1; ES2955729T3; FR3094622B1; EP3718452A1; CN111789526B

Abstract

The invention relates to a portable vacuum cleaner comprising a suction duct (18), a waste separation device (5) and a housing (3), the housing (3) enclosing a suction motor (6), the suction motor (6) being configured to generate an air flow through the suction duct (18) and the waste separation device (5), the housing (3) comprising an exhaust circuit (19), the air flow generated by the suction motor (6) being exhausted outside the housing (3) through the exhaust circuit (19), the exhaust circuit (19) being equipped with a removable filter (26). The exhaust circuit (19) comprises an air diffusion nozzle (21), and the filter (26) has the shape of a cylindrical cylinder and laterally surrounds the air diffusion nozzle (21).

Description

Portable dust collector

Technical Field

The present invention relates to the field of vacuum cleaners which allow the suction of dust and small-particle waste present on a surface to be cleaned, which may be, for example, tile, parquet, laminate, carpet or rug.

Background

A vacuum cleaner, in particular a portable vacuum cleaner, comprises, in a known manner, a suction duct, a waste separation device and a casing enclosing a suction motor configured to generate an air flow through the suction duct and the waste separation device, the casing comprising an exhaust circuit through which the air flow generated by the suction motor is discharged to the outside of the casing. Advantageously, the exhaust circuit may be equipped with a removable filter.

However, the noise generated during the operation of such a portable cleaner may be large, which may make the use experience of such a portable cleaner unpleasant.

Disclosure of Invention

The present invention aims to remedy all or part of these drawbacks.

The technical problem underlying the present invention is, inter alia, to provide a portable vacuum cleaner which is simple and economical in construction, while significantly reducing the noise generated during use of the portable vacuum cleaner.

To this end, the invention relates to a portable vacuum cleaner comprising a suction duct, a waste separation device and a casing enclosing a suction motor configured to generate an air flow through the suction duct and the waste separation device, the casing comprising an exhaust circuit through which the air flow generated by the suction motor is exhausted outside the casing, the exhaust circuit being equipped with a removable filter, characterized in that the exhaust circuit comprises an air diffusion nozzle and in that the filter has the shape of a cylindrical cylinder and laterally surrounds the air diffusion nozzle.

This configuration of the air diffusion nozzle and the filter ensures that the air flow leaving the suction motor is diffused towards the substantially cylindrical inner surface of the filter, thus forming a soundproofing wall extending around the air diffusion nozzle.

Thus, the particular configuration of the filter according to the invention, combined with the presence of the air diffusion nozzle upstream of the filter, significantly reduces the noise generated by the portable cleaner, making it more comfortable to use.

Furthermore, the portable cleaner may have one or more of the following features, alone or in combination.

According to an embodiment of the invention, the filter comprises a cylindrical and pleated filter portion laterally surrounding the air diffusion nozzle. This configuration of the filter further improves the sound attenuating properties of the filter, thereby further reducing the noise generated by the portable cleaner.

According to an embodiment of the invention, the air diffusion nozzle has a substantially cylindrical shape and comprises lateral openings, each of which is configured to diffuse a portion of the air flow generated by the suction motor towards the filter.

According to an embodiment of the present invention, each of the side openings is configured to diffuse a part of the airflow generated by the suction motor toward the filtering portion of the filter, more specifically, toward an inner circumferential surface of the filtering portion.

According to an embodiment of the invention, the air diffusion nozzle comprises an inner cavity in fluid connection with the air delivery orifice of the suction motor, each of the side openings of the air diffusion nozzle opening into the inner cavity.

According to an embodiment of the invention, the air delivery orifice of the suction motor opens, for example, axially into the interior of the air diffusion nozzle.

According to an embodiment of the invention, each side opening is elongated and extends substantially parallel to the longitudinal axis of the air diffusion nozzle.

According to an embodiment of the invention, the air diffusion nozzle and the filter are arranged coaxially.

According to an embodiment of the invention, the side openings are angularly offset with respect to each other.

According to an embodiment of the invention, the side openings are distributed around the longitudinal axis of the air diffusion nozzle and advantageously evenly distributed.

According to an embodiment of the invention, the housing and the air diffusion nozzle define a receiving chamber in which the filter is removably received. Advantageously, the receiving cavity is annular.

According to an embodiment of the invention, the side opening of the air diffusion nozzle opens into the receiving chamber.

According to an embodiment of the present invention, a portable cleaner includes a detachable cover detachably secured to a housing, the detachable cover configured to prevent access to a filter when the detachable cover is secured to the housing and to allow access to the filter when the detachable cover is removed. These arrangements allow the filter to be easily accessed and removed from the housing for maintenance, and in particular including cleaning or replacing the filter.

According to an embodiment of the invention, the detachable cover is detachably fastened to the housing by means of at least one locking element which is elastically deformable between a locking position, in which the detachable cover can be locked to the housing, and a release position, in which the detachable cover can be removed.

According to an embodiment of the invention, the at least one locking element comprises a support portion configured to be elastically deformed from the locking position to the release position when a user exerts a supporting force on the support portion.

According to an embodiment of the invention, the detachable cover comprises at least one locking element.

According to an embodiment of the invention, the at least one locking element comprises a locking portion configured to cooperate with the housing, and for example with a locking groove provided on the housing, when the at least one locking element is in the locking position.

According to an embodiment of the invention, the locking portion is formed by a locking lug.

According to an embodiment of the invention, the at least one locking element is a locking tongue.

According to an embodiment of the invention, the at least one locking element extends substantially parallel to the longitudinal axis of the suction motor.

According to an embodiment of the invention, the detachable cover is detachably fastened to the housing by two locking elements which are elastically deformable and positioned opposite each other. These arrangements enable the user to easily unlock the detachable lid by applying pressure on the two locking elements with a thumb and forefinger, respectively.

According to an embodiment of the present invention, a detachable cover is provided on a rear surface of a housing of a portable cleaner, and a front surface of the housing receives a debris separating apparatus.

According to an embodiment of the invention, the filter is detachably fastened to the detachable cover. These arrangements enable the user to remove the filter from the housing by simply removing the removable cover to check its contamination level, whilst preventing the user from touching the filter if it is not dirty enough to require cleaning. This filter construction (removal of the filter simultaneously with removal of the removable cover) is therefore very hygienic. Furthermore, if the filter has to be replaced, only the filter needs to be replaced, and no filter/removable cap assembly needs to be replaced, as would be the case if the two elements were manufactured integrally.

According to an embodiment of the invention, the filter is configured to be fastened to the detachable lid in a fastening direction which extends transversely, for example perpendicularly, to the longitudinal axis of the filter.

According to an embodiment of the invention, the removable cover comprises at least one fixing element configured to fix the filter to the removable cover.

According to an embodiment of the invention, the detachable cover is arranged on the longitudinal axis of the suction motor.

According to an embodiment of the invention, the filter and the suction motor are arranged coaxially.

According to an embodiment of the invention, the air diffusion nozzle and the suction motor are arranged coaxially.

According to an embodiment of the invention, the portable vacuum cleaner comprises at least one energy storage element, such as a rechargeable battery, configured to power the portable vacuum cleaner, in particular the suction motor.

According to an embodiment of the invention, the at least one energy storage element is accommodated in the housing.

According to an embodiment of the invention, the waste separation device is of the cyclone type.

According to an embodiment of the invention, the exhaust circuit comprises at least one air outlet opening provided on the outer surface of the casing through which the air flow generated by the suction motor is discharged outside the casing.

According to an embodiment of the invention, the housing comprises an access opening to the receiving chamber, the detachable cover being configured on the one hand to close the access opening and prevent access to the filter when the detachable cover is fastened to the housing and on the other hand to release the access opening and allow removal of the filter through the access opening when the detachable cover is removed.

According to an embodiment of the invention, the detachable cover comprises a closing portion configured to close the passage opening and prevent access to the filter when the detachable cover is fastened to the housing.

According to an embodiment of the invention, the closing portion is understood to extend transversely to the longitudinal axis of the suction motor.

According to an embodiment of the invention, at least one locking element extends from the closing portion.

According to an embodiment of the invention, the suction motor comprises a motor housing in which an electric ventilator is arranged.

According to an embodiment of the invention, the motor housing comprises an air delivery aperture.

According to an embodiment of the invention, the waste separating device extends along a first axis of extension and the suction motor extends along a second axis of extension, said second axis of extension being transverse to said first axis of extension. Advantageously, said first axis of extension is substantially perpendicular to said second axis of extension.

According to an embodiment of the invention, the air diffusion nozzle is fastened to the motor housing.

According to an embodiment of the present invention, the air diffusion nozzle and the motor housing are integrally formed.

According to an embodiment of the invention, the waste separating device is detachably mounted on the housing.

According to an embodiment of the invention, the housing comprises a gripping handle.

Drawings

In any case, the invention will be clearly understood from the following description with reference to the accompanying drawings, which show, as non-limiting examples, two embodiments of the cleaner.

Fig. 1 is a perspective view of a portable vacuum cleaner according to the present invention.

Fig. 2 is an exploded perspective view of the portable cleaner of fig. 1.

Fig. 3 is a longitudinal sectional view of the portable cleaner of fig. 1.

Fig. 4 is a transverse sectional view of the portable cleaner of fig. 1.

Fig. 5 is a side view of the filter and removable cover of the portable cleaner of fig. 1.

Fig. 6 is a perspective view of the filter of fig. 5.

Fig. 7 is a perspective view of the removable cover of fig. 5.

Detailed Description

Fig. 1 to 7 show a portable vacuum cleaner 2 comprising a housing 3 equipped with a gripping handle 4, a debris separating device 5 detachably mounted on the housing 3, and a suction motor 6 accommodated in the housing 3.

The waste separation device 5 is advantageously of the cyclone type and comprises a waste storage container 7 and a separation filter 8 housed in the waste storage container 7. The waste storage container 7 comprises in particular an air input aperture 9 and an air output aperture 11.

As shown in fig. 3 and 4, the suction motor 6 includes a motor housing 12 and an electric ventilator 13 provided in the motor housing 12. As is well known, the electric ventilator 13 includes a ventilator and an electric motor configured to drive the ventilator to rotate.

The suction motor 6 further comprises an air inlet aperture 14 and an air delivery aperture 15, advantageously provided on the motor casing 12, the portable cleaner 2 further comprising a connecting pipe 16, which connecting pipe 16 fluidly connects the air inlet aperture 14 of the suction motor 6 to the air outlet aperture 11 of the waste separation device 7.

According to the embodiment shown in the figures, the waste separating device 5 extends along a first axis of extension a, and the suction motor 6 extends along a second axis of extension B, which is transverse and advantageously perpendicular to the first axis of extension a.

The portable cleaner 2 further comprises an energy storage element 17, such as a rechargeable battery, which energy storage element 17 is configured to power the electric ventilator 13. The energy storage element 17 is advantageously accommodated in the housing 3, for example in the grip handle 4.

The casing 3 further comprises a suction duct 18 to which the inlet opening 9 of the waste separating device 5 is fluidly connected, and an exhaust circuit 19 through which the air flow generated by the suction motor 6 is discharged outside the casing 3.

As shown in particular in fig. 2, the exhaust circuit 19 comprises a substantially cylindrical air diffusion nozzle 21. Advantageously, the air diffusion nozzle 21 and the suction motor 6 are arranged coaxially. The air diffusion nozzle 21 may be fastened to the motor housing 12, for example. According to the embodiment shown in the figures, the air diffusion nozzle 21 is made in one piece with the motor housing 12.

The air diffusion nozzle 21 and the housing 3 define a receiving chamber 22, which receiving chamber 22 is advantageously annular, the function of which is defined below.

The air diffusion nozzle 21 comprises an internal cavity 23 and a side opening 24, the air delivery orifice 15 of the suction motor 6 opening axially into the internal cavity 23, the side opening 24 opening on the one hand into the internal cavity 23 and on the other hand into the receiving chamber 22. In particular, the side openings 24 are formed on a substantially cylindrical side surface 25 of the air diffusion nozzle 21.

According to the embodiment shown in the figures, the side openings 24 are angularly offset with respect to each other and are advantageously evenly distributed around the longitudinal axis of the air diffusion nozzle 21. For example, each side opening 24 may be elongated and extend substantially parallel to the longitudinal axis of the air diffusion nozzle 21.

The exhaust circuit 19 is also equipped with a filter 26, which is removably mounted in the receiving chamber 22. The filter 26 has the shape of a cylindrical cylinder and laterally surrounds the air diffusion nozzle 21. Advantageously, the air diffusion nozzle 21, the filter 26 and the suction motor 6 are arranged coaxially.

According to the embodiment shown in the figures, the filter 26 comprises a filtering portion 27, which filtering portion 27 is cylindrical and pleated and laterally surrounds the air diffusion nozzle 21, in particular the lateral surface 25 of the air diffusion nozzle 21, on which lateral surface 25 the side opening 24 is formed.

Therefore, each side opening 24 is configured to diffuse a part of the airflow generated by the suction motor 6 toward the filter portion 27, more specifically, toward the inner peripheral surface of the filter portion 27.

The exhaust circuit 19 further includes an air discharge opening 28 provided on the outer surface of the housing 3, and the air flow generated by the suction motor 6 is discharged to the outside of the housing 3 through the air discharge opening 28.

The portable cleaner 2 further comprises a detachable cover 29 detachably secured to the housing 3 and configured to prevent access to the filter 26 when the detachable cover 29 is secured to the housing 3 and to allow access to the filter 26 when the detachable cover 29 is removed. A detachable cover 29 is provided on a rear surface of the housing 3 of the portable cleaner 2, which is opposite to the suction duct 18. Advantageously, the removable cover 29 is arranged on the longitudinal axis B of the suction motor 6.

According to the embodiment shown in the figures, the housing 3 comprises an access opening 31 to the receiving chamber 22, and the removable cover 29 is configured on the one hand to close the access opening 31 and prevent access to the filter 26 when the removable cover 29 is fastened to the housing 3, and on the other hand to release the access opening 31 and allow removal of the filter 26 through the access opening 31 when the removable cover 29 is removed.

In particular, the removable cover 29 comprises a closing portion 32 and two locking elements 33, the closing portion 32 being configured to close the passage opening 31 and prevent access to the filter 26 when the removable cover 29 is fastened to the housing 3, the locking elements 33 being, for example, locking tongues, each locking element 33 extending from the closing portion 32 and being configured to allow locking of the removable cover 29 on the housing 3.

According to the embodiment shown in the figures, the closing portion 32 extends substantially perpendicular to the longitudinal axis B of the suction motor 6 and each locking element 33 extends substantially parallel to the longitudinal axis B of the suction motor 6. Advantageously, the two locking elements 33 are positioned opposite each other, so that the two locking elements 33 are diametrically opposite each other when the closing portion 32 has a substantially circular shape.

Each locking element 33 comprises a locking portion 33.1, for example a locking lug, and is elastically deformable between a locking position, in which the locking portion 33.1 is able to cooperate with the housing 3, for example with a locking groove provided on the housing 3, in order to lock the removable cover 27 on the housing 3, and a release position, in which the locking portion 33.1 is able to release the housing 3, in order to enable the removable cover 29 to be removed.

Each locking element 33 may further comprise a support portion 33.2, for example provided with a groove, which support portion 33.2 is configured such that the respective locking element 33 is elastically deformed from the locking position to the release position when a user exerts a supporting force on the support portion 33.2.

According to the embodiment shown in the figures, the filter 26 is removably fastened to a removable cover 29. To this end, the removable cover 29 comprises two fixing elements 34, for example fixing tabs, configured to fix the filter 26 to the removable cover 29. Each fixing element 34 may for example be located on an inner surface of the respective locking element 33.

According to an embodiment of the invention, the filter 26 is configured to be fastened to the detachable cover 29 in a fastening direction D that extends transversely, for example perpendicular, to the longitudinal axis C of the filter 26.

The operation of the cleaner 2 will now be described. When the electric ventilator 13 is powered, it generates a negative pressure, in particular in the waste separation device 5, so that air and waste are sucked in through the suction duct 18. The waste laden air then enters the waste storage container 7 through the air inlet opening 9, which air inlet opening 9 may, for example, lead tangentially to the waste storage container 7. Thus, the air is rotated and the waste is centrifuged outward and collected by the waste storage container 7.

The air flow then flows continuously through the air outlet orifice 11 of the suction motor 6, the connecting tube 16 and the air inlet orifice 14 and the air delivery orifice 15. The air flow is then directed radially through the side openings 24 to the filter 26 and flows through the filter portion 27 before escaping the housing 3 through the air outlet openings 28.

Of course, the invention is in no way limited to the embodiments described and shown, which are given as examples only. Modifications are still possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, and these do not go beyond the scope of protection of the invention.

Claims

1. A portable vacuum cleaner comprising a suction duct (18), a waste separation device (5) and a casing (3), said casing (3) enclosing a suction motor (6), said suction motor (6) being configured to generate an air flow through said suction duct (18) and said waste separation device (5), said casing (3) comprising an exhaust circuit (19), through which exhaust circuit (19) the air flow generated by said suction motor (6) is exhausted outside said casing (3), said exhaust circuit (19) being equipped with a removable filter (26), characterized in that said exhaust circuit (19) comprises an air diffusion nozzle (21) and in that said filter (26) has the shape of a cylindrical cylinder and laterally surrounds said air diffusion nozzle (21).

2. The portable vacuum cleaner according to claim 1, characterized in that the filter (26) comprises a cylindrical and pleated filter portion (27), the filter portion (27) laterally surrounding the air diffusion nozzle (21).

3. The portable vacuum cleaner according to claim 1 or 2, characterized in that the air diffusing nozzle (21) has a substantially cylindrical shape and comprises lateral openings (24), each of the lateral openings (24) being configured to diffuse a portion of the air flow generated by the suction motor (6) towards the filter (26).

4. The portable vacuum cleaner according to claim 3, characterized in that the air diffusing nozzle (21) comprises an inner cavity (23) in fluid connection with an air delivery orifice (15) of the suction motor (6), each of the side openings (24) of the air diffusing nozzle (21) opening into the inner cavity (23).

5. The portable vacuum cleaner according to any one of claims 1 to 4, characterized in that the housing (3) and the air diffusing nozzle (21) define a receiving chamber (22), the filter (26) being removably received in the receiving chamber (22).

6. The portable vacuum cleaner of any of claims 1 to 5, comprising a detachable cover (29) detachably secured to the housing (3), the detachable cover (29) being configured to prevent access to the filter (26) when the detachable cover (29) is secured to the housing (3) and to allow access to the filter (26) when the detachable cover (29) is detached.

7. Portable vacuum cleaner according to claim 6, characterized in that the detachable cover (29) is detachably fastened to the housing (3) by means of at least one locking element (33), the locking element (33) being elastically deformable between a locking position, in which the detachable cover (29) can be locked to the housing (3), and a release position, in which the detachable cover (29) can be removed.

8. Portable vacuum cleaner according to claim 7, characterized in that the detachable cover (29) is detachably fastened to the housing (3) by two locking elements (33), the locking elements (33) being elastically deformable and positioned opposite each other.

9. A portable vacuum cleaner according to any of claims 6-8, characterized in that the detachable cover (29) is arranged on a rear surface of the housing (3) of the portable vacuum cleaner, a front surface of the housing (3) receiving the waste separation device (5).

10. The portable vacuum cleaner according to any one of claims 6 to 9, characterized in that the filter (26) is detachably fastened to the detachable cover (29).

11. The portable vacuum cleaner according to any one of claims 6 to 10, characterized in that the detachable cover (29) is arranged on a longitudinal axis (B) of the suction motor (6).

12. The portable vacuum cleaner according to any one of claims 1 to 11, characterized in that the filter (26) and the suction motor (6) are coaxially arranged.

13. The portable vacuum cleaner according to any of claims 1 to 12, comprising at least one energy storage element (17), the energy storage element (17) being configured to power the portable vacuum cleaner.

14. A portable vacuum cleaner according to any of claims 1-13, characterized in that the waste separation device (5) is of the cyclone type.

15. The portable vacuum cleaner according to any one of claims 1 to 14, characterized in that the exhaust circuit (19) comprises at least one air discharge opening (28) provided on an outer surface of the housing (3), and the air flow generated by the suction motor (6) is discharged outside the housing (3) through the air discharge opening (28).