CN211511617U

CN211511617U - Suction device for household dust collector and household dust collector comprising same

Info

Publication number: CN211511617U
Application number: CN201922102872.XU
Authority: CN
Inventors: 安东尼·马蒂
Original assignee: SEB SA
Current assignee: SEB SA
Priority date: 2018-11-30
Filing date: 2019-11-29
Publication date: 2020-09-18
Anticipated expiration: 2029-11-29
Also published as: EP3659482A1; FR3089108B1; FR3089108A1; CN111248810A; CN111248810B

Abstract

The utility model relates to a suction device (7) for a household dust collector (2) and the household dust collector (2) comprising the same, wherein the suction device (7) comprises a motor cover (9), a suction motor (11) and a pneumatic sealing element (22), and the motor cover (9) comprises a supporting part (12); the suction motor (11) is arranged in the motor cover (9) and is supported by the supporting part (12); the pneumatic sealing element (22) comprises a first sealing portion (23) and a second sealing portion (24), the first sealing portion (23) being configured to cooperate in a sealing manner with the motor cover (9), the second sealing portion (24) being configured to cooperate in a sealing manner with the suction motor (11). The suction device (7) further comprises at least one buffer element (26) interposed between the support portion (12) and the suction motor (11) and configured to bear the weight of the suction motor (11), the at least one buffer element (26) being distinct from the pneumatic sealing element (22).

Description

Suction device for household dust collector and household dust collector comprising same

Technical Field

The present invention relates to the field of household cleaners, which allow the suction of dust and waste of small granulometry present on the surface to be cleaned, which may be, for example, tiles (tiles), floors (parquet), laminated materials (stratefie), woven cut pile carpets (motquette) or carpets (tapis).

Background

Household vacuum cleaners are known comprising a suction device comprising:

-a motor housing comprising a passage opening,

-a suction motor arranged in the motor housing configured to generate a suction flow through the passage opening, and

-a pneumatic sealing element comprising an annular first sealing portion configured to cooperate in a sealing manner with the motor housing and an annular second sealing portion configured to cooperate in a sealing manner with the suction motor, the pneumatic sealing element being configured to guide a suction flow from the passage opening to an air inlet opening provided on the suction motor.

The pneumatic sealing element is also configured to ensure decoupling of the suction motor with respect to the motor cover, thus serving to limit the transmission of vibrations generated by the suction motor to the motor cover.

However, in order to ensure good sealing between the motor cover and the suction motor, it is necessary to realize the pneumatic sealing member using a very elastic material. However, the choice of a material with too great an elasticity to realize the pneumatic sealing element is disadvantageous for decoupling the suction motor relative to the motor housing.

Therefore, the noise generated by the above-mentioned household cleaner may be excessive and uncomfortable for the user.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to overcome part or all of the above-mentioned defects.

The technical problem underlying the present invention is, in particular, to provide a suction device which ensures an optimal decoupling (d coupling) of the suction motor relative to the motor housing, while ensuring an optimal sealing between the suction motor and the motor housing.

Accordingly, the present invention relates to a suction device for a household vacuum cleaner, comprising a motor cover, a suction motor and a pneumatic sealing element, the motor cover comprising a support part and a passage opening, the passage opening being provided on the support part; the suction motor is disposed in the motor cover and supported by the support portion, the suction motor including an air inlet opening and being configured to generate a suction flow through the passage opening and the air inlet opening; the pneumatic sealing element comprises a first sealing portion configured to cooperate in a sealed manner with the motor cover and a second sealing portion configured to cooperate in a sealed manner with the suction motor, characterized in that the suction device further comprises at least one cushioning element interposed between the support portion and the suction motor and configured to bear the weight of the suction motor, the at least one cushioning element being distinct from the pneumatic sealing element.

This configuration of the at least one damping element allows to separate the sealing function, which is achieved by the pneumatic sealing element, and the uncoupling function, which is achieved by the at least one damping element, thus allowing to use materials of different rigidity to achieve the pneumatic sealing element and the at least one damping element. This choice of material allows, for example, to realize the pneumatic sealing element with a very elastic material, thus facilitating the tightness between the motor cover and the suction motor, and to realize the at least one damping element with a slightly harder material, thus facilitating the damping of the vibrations generated by the suction motor.

Thus, by adjusting the materials constituting the pneumatic sealing element and the at least one damping element, the suction device according to the present invention ensures an optimized tightness between the motor cover and the suction motor, as well as an optimized limitation of the vibrations generated by the suction motor transmitted to the motor cover.

The suction device according to the invention thus ensures an improved decoupling of the suction motor relative to the motor housing, while ensuring an optimized tightness between the motor housing and the suction motor.

The inhalation device can also have one or more of the following features, taken alone or in combination.

According to an embodiment of the invention, the suction device is configured to facilitate the positioning of the support portion and the at least one damping element below the suction motor when the longitudinal axis of the suction motor is substantially vertical and the air inlet opening is oriented towards the ground.

According to an embodiment of the invention, there is a gap between the at least one damping element and the pneumatic sealing element.

According to an embodiment of the invention, the pneumatic sealing element is ring-shaped, and the at least one damping element is provided at a periphery of the pneumatic sealing element.

According to an embodiment of the invention, the pneumatic sealing element is configured to guide the suction flow from the passage opening to the air inlet opening.

According to an embodiment of the invention, the first sealing portion is annular and extends at the periphery of the passage opening.

According to an embodiment of the invention, the second sealing portion is annular and extends around the air inlet opening.

According to an embodiment of the invention, the pneumatic sealing element is flexible.

According to an embodiment of the invention, the pneumatic sealing element is a single piece.

According to one embodiment of the invention, the pneumatic sealing element and the at least one damping element are realized from materials of different rigidity.

According to an embodiment of the invention, the material realizing the at least one damping element has a greater rigidity than the rigidity of the material realizing the pneumatic sealing element.

According to an embodiment of the invention, the pneumatic sealing element is molded on the support part.

According to an embodiment of the invention, the at least one damping element is molded on the support part.

According to one embodiment of the invention, the at least one damping element has an arcuate (arqu) abutment surface against which the rounded lower edge of the suction motor abuts.

According to an embodiment of the invention, the at least one damping element is elongated and extends in the direction of extension.

According to an embodiment of the invention, the at least one damping element is flexible.

According to an embodiment of the invention, the at least one damping element is elastically deformable. Advantageously, the at least one damping element is realized by an elastically deformable material and can be realized, for example, by an elastomer.

According to an embodiment of the invention, the at least one damping element extends radially relative to the passage opening.

According to an embodiment of the invention, the suction device comprises a plurality of said damping elements distributed around the passage opening. The damping elements can be molded on the support, for example separately or simultaneously.

According to one embodiment of the invention, the damping elements are connected to one another.

According to an embodiment of the invention, the damping elements are different from each other and separate from each other.

According to one embodiment of the invention, the damping elements are regularly distributed around the passage opening, and in particular around the pneumatic sealing element.

According to an embodiment of the invention, the damping elements are substantially circumferentially aligned.

According to one embodiment of the invention, the damping element extends in a plane of extension which is substantially transverse, and preferably substantially perpendicular, to the longitudinal axis of the suction motor.

According to an embodiment of the invention, the annular second sealing portion is configured to be tightly and sealingly held against the suction motor when the suction motor is powered and a suction flow is generated. In other words, when the suction motor is powered and generates a suction flow, the resultant force exerted on the annular second sealing portion causes the annular second sealing portion to be snugly and held in a sealing manner against the suction motor. This configuration of the pneumatic sealing element allows to ensure the durability (tenue) and the tightness of the pneumatic sealing element at the suction motor without adding additional parts and thus to reduce the manufacturing costs of the suction device and to simplify the installation of the suction device.

According to one embodiment of the invention, the inhalation device comprises three damping elements which are distributed at an angle of 120 ° to one another.

According to an embodiment of the present invention, the motor cover includes a housing defining a cavity, and the suction motor is installed in the cavity. Advantageously, the housing includes a mounting opening which opens into the cavity, and the suction motor is mounted in the cavity through the mounting opening.

According to an embodiment of the invention, the support part and the housing are assembled to each other.

According to an embodiment of the invention, the support portion is configured to close the mounting opening.

According to an embodiment of the invention, the suction device comprises a radial damping system comprising a plurality of damping members distributed around the suction motor.

According to an embodiment of the invention, the radial damping system further comprises an annular support extending around the suction motor, the damping member being interposed between the annular support and the motor cover, and for example between the annular support and the casing.

According to an embodiment of the invention, each damping part comprises a first fixing portion, a second fixing portion and a damping portion, the first fixing portion being fixed to the motor cover and, for example, to the housing of the motor cover, the second fixing portion being fixed to the annular support, the damping portion being connected to the first fixing portion and the second fixing portion. The damping portion of each damping member can extend substantially radially, for example, with respect to a longitudinal axis of the suction motor.

According to an embodiment of the invention, the damping elements are regularly distributed around the suction motor.

According to an embodiment of the present invention, the suction motor includes a fan and a motor configured to drive the fan to rotate.

According to an embodiment of the invention, the housing comprises an air outlet opening and a protective grid, which is located between the air outlet opening and the suction motor. These arrangements allow to prevent the user from coming into contact with the active parts (activities) of the suction motor housed in the housing defined by the casing, in particular when replacing the air outlet filter located at the air outlet opening.

The utility model discloses still relate to a domestic dust catcher, it includes according to the utility model discloses a suction device.

According to an embodiment of the present invention, the household vacuum cleaner is a broom-type vacuum cleaner.

According to an embodiment of the invention, the longitudinal axis of the suction motor is substantially parallel to the longitudinal axis of the handle of the broom-type cleaner.

Drawings

The invention will be better understood by studying the description with reference to the drawings, given in a non-limiting manner, which show an embodiment of the inhalation device, in which:

figure 1 shows a partial perspective view of a household vacuum cleaner according to the invention.

Figure 2 shows a perspective view of the suction device of the household cleaner of figure 1.

Figure 3 shows a top exploded perspective view of the inhalation device of figure 2.

Figure 4 shows a bottom exploded perspective view of the inhalation device of figure 2.

Figure 5 shows a top view of the support belonging to the suction device of figure 2.

Figure 6 shows a top perspective view of an inhalation device according to a second embodiment of the present invention.

Detailed Description

Figure 1 shows a domestic cleaner 2, and more particularly a broom-type cleaner, the domestic cleaner 2 comprising a handle 3 and a cleaner head 4 (e.g. of generally triangular shape) arranged to contact a floor surface to be cleaned and connected to the handle 3 by a connecting portion 5.

The handle 3 comprises, in particular, a handle 6 at its upper end and forms a frame comprising, in particular, a suction device 7 and a waste separating and storing device 8, the waste separating and storing device 8 being removable so as to be able to be cleaned. The handle 3 is advantageously articulated in a number of degrees of freedom with respect to the cleaner head 4 and can be manipulated directly by the user, as with a broom, to move the cleaner head 4 over the surface to be cleaned.

As shown in fig. 2, the suction device 7 includes a motor cover 9 and a suction motor 11, also known as a fan motor, which is provided in the motor cover 9. The suction device 7 also comprises a rechargeable battery (not shown in the figures) configured to power the suction motor 11.

As shown more specifically in fig. 3 and 4, the motor cover 9 comprises a support 12, a passage opening 13 and a casing 14, the support 12 being configured to carry the suction motor 11, the passage opening 13 being provided on the support 12, the casing 14 being connected to the support 12, for example by means of screws or a locking mechanism.

The housing 14 defines a cavity 15, and the suction motor 11 is mounted in the cavity 15. Therefore, the housing 14 includes a mounting opening 16, the mounting opening 16 opens into the cavity 15, and the suction motor 11 is mounted in the cavity 15 through the mounting opening 16. The support portion 12 is specifically configured to close the mounting opening 16.

The suction motor 11 is configured to generate a suction flow through the passage opening 13. As known, the suction motor 11 comprises a fan and a motor configured to drive the fan in rotation. The suction motor 11 can also include a fan cover 17, the fan cover 17 at least partially covering the fan and defining an air inlet opening 18.

According to the embodiment shown in fig. 1 to 5, the casing 14 further comprises an air discharge opening 19 and a protective grille 21, the protective grille 21 being located between the air discharge opening 19 and the suction motor 11. These arrangements allow to prevent the user from coming into contact with the moving parts of the suction motor 11, in particular when replacing the air outlet filter (not shown in the figures) located at the air outlet opening 19, the suction motor 11 being housed in the housing 15 defined by the casing 14.

The inhalation device 7 further comprises a pneumatic sealing element 22, the pneumatic sealing element 22 being one piece and flexible. The pneumatic sealing element 22 is more specifically configured to direct the suction flow from the passage opening 13 to the air inlet opening 18.

Advantageously, the pneumatic sealing element 22 is annular and flexible and comprises a first sealing portion 23 and a second sealing portion 24, the first sealing portion 23 being configured to cooperate in a sealed manner with the motor casing 9, more specifically with the support portion 12, the second sealing portion 24 being configured to cooperate in a sealed manner with the suction motor 11. Advantageously, the pneumatic sealing element 22 is moulded on the support 12.

According to the embodiment shown in fig. 1 to 5, the first sealing portion 23 is annular and extends at the periphery of the passage opening 13, and the second sealing portion 24 is annular and extends around the air inlet opening 18.

The annular second sealing portion 24 more particularly comprises an annular sealing lip 25, the annular sealing lip 25 extending transversely with respect to the central axis of the pneumatic sealing element 22 and being configured to cooperate in a sealing manner with the suction motor 11 and more particularly with the fan cover 17.

The annular seal lip 25 is configured to abut against the suction motor 11 when the suction motor 11 is stopped, and to abut and be held against the suction motor 11 in a sealed manner when the suction motor 11 is energized and suction flow is generated.

The suction device 7 further comprises a plurality of cushioning elements 26, the plurality of cushioning elements 26 being distinct from the pneumatic sealing element 22 and being interposed between the support portion 12 and the suction motor 11. The damping element 26 is more particularly configured to bear the weight of the suction motor 11 and is advantageously realized by an elastically deformable material, and for example by an elastomer. The damping element 26 can be molded on the support 12, for example separately or simultaneously.

According to an embodiment of the present invention, the pneumatic sealing element 22 and the cushioning element 26 are realized by materials having different rigidities. The material implementing each cushioning element 26 may have a rigidity that is greater than, for example, the rigidity of the material implementing the pneumatic sealing element 22.

According to the embodiment illustrated in fig. 1 to 5, the suction device 7 is configured so as to facilitate the support 12 and the cushioning element 26 being located below the suction motor 11 when the longitudinal axis of the suction motor 11 is substantially vertical and the air intake opening 18 is oriented towards the ground.

As shown in fig. 3, the damping elements 26 are arranged at the periphery of the pneumatic sealing element 22 and are regularly distributed around the passage opening 13. The suction device 7 can, for example, comprise three damping elements 26, the three damping elements 26 being distributed at an angle of 120 ° to one another.

Advantageously, the damping elements 26 are substantially circumferentially aligned and extend in a plane of extension substantially transverse, and preferably substantially perpendicular, to the longitudinal axis of the suction motor 11.

According to the embodiment shown in fig. 1 to 5, each damping element 26 is elongated and extends radially with respect to the passage opening 13. Advantageously, each buffer element 26 has an arcuate abutment surface 27 against which a rounded lower edge 28 of the suction motor 11 abuts.

The suction device 7 further comprises (as shown in particular in fig. 3 and 4) a radial damping system 29, the radial damping system 29 comprising an annular support 30 and a plurality of damping members 31, the annular support 30 extending around the suction motor 11 and being fixed to the suction motor 11, the plurality of damping members 31 being interposed between the annular support 30 and the casing 14 and being regularly distributed around the suction motor 11. The radial damping system 29 can for example comprise three damping members 31 regularly distributed around the suction motor 11.

According to the embodiment illustrated in fig. 1 to 5, each damping part 31 comprises a first fixing portion 32, a second fixing portion 33 and a damping portion 34, the first fixing portion 32 being fixed (for example by shape complementary) to the casing 14 of the motor casing 9, the second fixing portion 33 being fixed (for example by shape complementary) to the annular support 30, the damping portion 34 connecting the respective first and

second fixing portions

32 and 33. The buffer portion 34 of each buffer member 31 can extend substantially radially with respect to the longitudinal axis of the suction motor 11, for example.

Fig. 6 shows a support 12 of an inhalation device 7 according to a second embodiment of the invention, which differs from the embodiment shown in fig. 1 to 5 essentially in that the damping elements 26 are connected between each other by an annular connecting portion 35 in order to allow the damping elements 26 to be molded on the support 12 by means of a single material injection point in the respective mold.

Of course, the invention is in no way limited to the described and illustrated embodiments, which are given by way of example only. Changes may be made, especially in matters of construction of the various elements or by technically equivalent substitutions, without exceeding the scope of the invention. Thus, especially the suction device 7 can be fitted with a mopping cleaner.

Claims

1. A suction device (7) for a household vacuum cleaner (2), the suction device (7) comprising a motor cover (9), a suction motor (11) and a pneumatic sealing element (22), the motor cover (9) comprising a support (12) and a passage opening (13) provided on the support (12); the suction motor (11) is disposed in the motor cover (9) and supported by the support portion (12), the suction motor (11) including an air inlet opening (18) and being configured to generate a suction flow through the passage opening (13) and the air inlet opening (18); the pneumatic sealing element (22) comprises a first sealing portion (23) and a second sealing portion (24), the first sealing portion (23) is configured to mate with the motor cover (9) in a sealing manner, the second sealing portion (24) is configured to cooperate in a sealed manner with the suction motor (11), characterized in that said suction device (7) further comprises at least one damping element (26), at least one of said damping elements (26) being interposed between said support portion (12) and said suction motor (11), and is configured to bear the weight of the suction motor (11), at least one of the damping elements (26) being distinct from the pneumatic sealing element (22), and the pneumatic sealing element (22) is annular and at least one damping element (26) is arranged at the periphery of the pneumatic sealing element (22).

2. An inhalation device (7) according to claim 1 characterised in that the inhalation device (7) is configured to facilitate the support (12) and the at least one damping element (26) being located below the inhalation motor (11) when the longitudinal axis of the inhalation motor (11) is substantially vertical and the air inlet opening (18) is oriented towards the ground.

3. An inhalation device (7) according to one of claims 1 or 2 characterised in that the pneumatic sealing element (22) and the at least one damping element (26) are realized in materials of different rigidity.

4. An inhalation device (7) according to claim 3 characterised in that the material realizing at least one of the damping elements (26) has a greater rigidity than the rigidity of the material realizing the pneumatic sealing element (22).

5. An inhalation device (7) according to claim 1 or 2 characterised in that the pneumatic sealing element (22) is moulded on the support (12).

6. An inhalation device (7) according to one of claims 1 or 2 characterised in that at least one damping element (26) is moulded onto the support (12).

7. An inhalation device (7) according to one of claims 1 or 2 characterised in that at least one of the damping elements (26) has an arcuate abutment surface (27), against which abutment surface (27) the rounded lower edge of the inhalation motor (11) abuts.

8. An inhalation device (7) according to one of claims 1 or 2 characterised in that at least one of the damping elements (26) extends radially with respect to the passage opening (13).

9. An inhalation device (7) according to one of claims 1 or 2 characterised in that the inhalation device (7) comprises a plurality of the damping elements (26) distributed around the passage opening (13).

10. An inhalation device (7) according to claim 9 characterised in that the inhalation device (7) comprises three damping elements (26), the three damping elements (26) being distributed at an angle of 120 ° to one another.

11. A household vacuum cleaner (2), characterized in that it comprises a suction device (7) according to any one of claims 1 to 10.