• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Double air inlet extractor comprising a main body (10) having an upper end (11) with an opening (12) for aspiration of air, a cover (20) arranged on the upper end (11) of the main body (10), and a propeller-motor assembly (30) housed in the main body (10), where the cover (20) is separated a first distance (D) from the opening (12) of the main body (10), such that between the cover (20) and the opening (12) of the main body (10) there is defined a lateral air intake port (S), and where the cover (20) has a central opening (21) that is partially covered by a central shutter (40), the central shutter (40) being separated a second distance (d) from the central opening (21) of the cover (20), such that between the central shutter (40) and the central opening (21) of the cover (20) a front air intake (F) is defined. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2769475A1
    申请号:ES201831268
    申请日:2018-12-21
    公开日:2020-06-25
    发明作者:Burch Albert Bach-Esteve
    申请人:Soler and Palau Research SL；
    IPC主号:
    专利说明:

    [0004] Technical sector
    [0006] The present invention refers to an air extractor designed with a double air intake to achieve efficient and comfortable ventilation conditions in bathrooms, kitchens and similar rooms in residential or commercial premises.
    [0008] State of the art
    [0010] For the renovation of stale or polluted air in closed rooms, such as bathrooms or kitchens, it is known to use exhaust fans that absorb the air inside the room and expel it to the outside through an exhaust duct. to which the extractors are connected.
    [0012] The air extractors comprise a main body in which a propeller-motor assembly is arranged for absorption of the air to be extracted and a cover that is arranged on the upper end of the main body, closing it at said end. See for example document EP1816728B1, or document EP2012412B1.
    [0014] The main body of the air extractor has at its upper end an opening for air aspiration, the propeller of the propeller-motor assembly being arranged approximately in said opening of the main body, and the main body having a lower end for connection with the air duct. air evacuation. The cover that closes the upper end of the main body has a central opening provided with a grid, said central opening of the cover being aligned with the opening of the main body where the propeller is arranged, such that air is sucked in by the propeller from the central opening of the cover towards the opening of the main body to lead it towards the evacuation duct.
    [0016] During use of the extractor, it is common for dust, and other types of dirt dispersed in the air, to tend to stick to the grille, and since the grille is exposed to view, it results in an inadequate aesthetic appearance of the extractor. In addition, the extractors are generally located in elevated positions of the enclosures, such as on the ceiling, or in an upper part of a wall, so that access to them for cleaning is especially difficult, which causes them not to be cleaned as often as necessary to improve their appearance. This problem is aggravated given the dirty conditions of the rooms in which the extractor is arranged, so the grill tends to get dirty after a short time of use.
    [0018] To solve this problem, for example, air extractors are known that have a blind cover without a central opening, and without a grid, so that dust does not accumulate in a visible area of the extractor, thus improving its aesthetic appearance.
    [0020] This type of air extractors have the same configuration as the previously described grille extractors, except that the cover does not have the central opening with the grille, and that the cover is arranged on the main body but separated by a certain distance from the main body. In this way, the air is sucked in laterally through the established gap between the cover and the main body, to direct it towards the opening of the main body where the propeller is arranged, which in turn directs the air towards the evacuation duct. Although the exterior aesthetic appearance is improved with this solution, the truth is that this type of exhaust fan has less efficient ventilation conditions than the exhaust fans that take air in through the grille of the central opening of the lid.
    [0022] Object of the invention
    [0024] In accordance with the present invention, an air extractor with a double air intake is proposed, which allows efficient ventilation conditions to be achieved for the rooms to be ventilated, in addition to presenting an improved aesthetic appearance since dirt does not accumulate in a visible area. of the extractor.
    [0026] The double air inlet extractor proposed by the invention comprises:
    [0028] • a main body having an upper end with an opening for air intake,
    [0030] • a cap arranged on the upper end of the main body, and
    [0031] • a propeller-motor assembly housed in the main body, the propeller of the propeller-motor assembly being arranged in the opening for the aspiration of air from the main body.
    [0033] On the one hand, the cover is spaced a first distance from the opening at the upper end of the main body, such that between the cover and the opening at the upper end of the main body there is defined a side air intake for air conduction from the side entrance to the opening at the upper end of the main body.
    [0035] On the other hand, the lid has a central opening that is partially covered by a central shutter, the central shutter being separated a second distance from the central opening of the lid, such that between the central shutter and the central opening of the lid is defined a front air intake for air conduction from the front inlet to the main body opening.
    [0037] In this way the extractor allows to establish a double air intake, the lateral entrance defined between the cover and the main body, and the front entrance defined between the cover and the central shutter, which improve the ventilation conditions of the extractor of air.
    [0039] The arrangement of the side air intake in relation to the opening of the main body causes the air flow to have to make a turn to go towards the opening, which can generate shocks and turbulences that affect the extraction performance However, the front air intake intake helps direct that air flow that enters through the side inlet, facilitating rotation, so that such shocks and turbulence are reduced.
    [0041] In addition, the central shutter is arranged partially covering the central opening of the cover through which the extractor sucks air in from the front, so that the aesthetic appearance of the extractor is improved as there are no visible parts of it in which dirt accumulates, since they are hidden by the central shutter.
    [0043] Accordingly, the air extractor object of the invention results from some very advantageous characteristics for the function for which it is intended, acquiring its own life and preference over other conventional air extractors that are use for that function.
    [0045] Description of the figures
    [0047] FIG. 1 shows a perspective view of an embodiment of the air extractor according to the invention.
    [0049] Figure 2 shows a side view of the air extractor of figure 1.
    [0051] Figure 3 shows a cross-sectional view of the extractor according to the MI-MI section indicated in Figure 2.
    [0053] Figure 4 shows a top view of the air extractor of figure 1.
    [0055] Figure 5 shows another cross-sectional view of the extractor according to the V-V section indicated in Figure 4.
    [0057] Figure 6 shows a sectional perspective view of the upper end of the main body, the cover and the central shutter.
    [0059] Figure 7 shows a perspective view of the lid seen from its underside.
    [0061] Figure 8A shows a schematic view of an extractor according to the state of the prior art with a front air intake.
    [0063] Figure 8B shows a schematic view of an extractor according to the state of the prior art with a side air intake (S).
    [0065] Figure 8C is a schematic view of an extractor according to the invention with a lateral air intake and a front air intake.
    [0067] Detailed description of the invention
    [0069] Figure 1 shows an embodiment of the exhaust fan for ventilation of bathrooms, kitchens, or similar rooms in residential or commercial premises.
    [0070] The air extractor comprises a main body (10), a cover (20) that is arranged on the main body (10) and a propeller-motor assembly (30) that is housed inside the main body (10).
    [0072] The main body (10) has an upper end (11) in which there is an opening (12) through which the propeller-motor assembly (30) sucks air, and a lower end (13), opposite the upper end ( 11), for the connection of the main body (10) with an air evacuation duct (not shown).
    [0074] The propeller of the propeller-motor assembly (30) is arranged in the opening (12) of the upper end (11) of the main body (10) to cause the aspiration of air through the opening (12).
    [0076] The opening (12) of the upper end (11) of the main body (10) has a grid (14) to protect against possible contact of a user with the propeller-motor assembly (30) in case of removing the cover (20) with the extractor running.
    [0078] At the upper end (11) of the main body (10) the operating electronics of the extractor are housed.
    [0080] The lid (20) has a central opening (21), the central opening (21) of the lid (20) being partially covered by a central shutter (40).
    [0082] On the one hand, the cover (20) is separated a first distance (D) from the opening (12) of the upper end (11) of the main body (10), so that a lateral air intake is defined (S ), while on the other hand, the central shutter (40) is separated a second distance (d) from the central opening (21) of the cover (20), so that a front air intake entrance is defined (F ).
    [0084] With this configuration a double air intake is established in the extractor. Thus, the propeller of the propeller-motor assembly (30) located in the opening (12) of the main body (10), on the one hand, sucks the air to conduct it from the lateral air intake intake (S) towards the opening ( 12) of the main body (10), and on the other hand, the propeller also sucks air to guide it from the front air intake (F) to the front opening (21) of the cover (20), and from there to the opening (12) of the main body (10), finally evacuating all the air sucked through the air evacuation duct that connects to the lower end (13) of the main body (10).
    [0086] The opening (12) of the main body (10) and the central opening (21) of the cover (20) are aligned, the central shutter (40) being arranged aligned with both openings (12,21) of the main body (10) and the cover (20). In this way, the central shutter (40) is arranged preventing the front view of the grid (14) that covers the opening (12) of the main body, where dirt can accumulate.
    [0088] Thus, the imaginary axis passing through the center of the opening (12) of the main body (10) and the imaginary axis passing through the center of the central opening (21) of the cover (20) are coaxial, the axis being imaginary that passes through the center of the central shutter (40) also aligned with the axes of both openings (12,21) of the main body (10) and of the cover (20).
    [0090] The central plug (40) has an external dimension that is equal to, or less than, the internal dimension of the central opening (21) of the cover (20). That is, the vertical projection of the central shutter (40) is equal to or less than the vertical projection of the central opening (21). This allows the flow entering through the front air intake (F) to follow a direction as rectilinear as possible makes the opening (12) of the main body (10), as can be seen in the sectional view of figure 5.
    [0092] The extractor additionally comprises connecting means (15,16,22,23) to establish a removable connection between the cover (20) and the upper end (11) of the main body (10). In this way, the cover (20) can be removed from the main body (10) to facilitate cleaning tasks when necessary.
    [0094] Preferably, one (16,23) of the connecting means (15,16,22,23) has a different shape from the other connecting means (15,22) to establish an unequivocal mounting of the cover (20) on the main body (10).
    [0096] The different connecting means (16,23) are additionally used to house an indicator light of an operating state of the extractor.
    [0097] The central shutter (40) is attached to the cover (20) through supports (24).
    [0099] The supports (24) have a laminar configuration with a thinner section that is arranged facing the front air intake (F). In this way, the supports (24) offer a minimum resistance to the passage of air, thus reducing the possible noise that may be generated.
    [0101] The supports (24) are arranged in diametrically opposite positions and equidistant from each other, each of the supports (24) being arranged in the center of one of the sides of the cover (20).
    [0103] The lid (20) and the central plug (40) are made in a single piece that is preferably obtained by means of an injection molding of plastic material.
    [0105] The cover (20) has a curved area (25) in the periphery of the central opening (21) that allows directing the air flow that enters through the front air intake (F).
    [0107] The shape and arrangement of the supports (24) are specially designed to optimize injection molding and allow a good flow of the plastic material during molding.
    [0109] Experimentally, it has been verified that the air extraction conditions are improved for preferred dimensions of the first and second distances (D, d) that allow double air entry. Thus, the first separation distance (D) between the cover (20) and the opening (12) of the upper end (11) of the main body (10) is preferably comprised between 10 mm and 20 mm, and the second distance (d ) of separation between the central shutter (40) and the central opening (21) of the cover (20) is preferably comprised between 5 mm and 10 mm.
    [0111] As represented by the arrows in the figures, the preferred dimensions of the first and second distances (D, d) indicated above are dimensions measured vertically from one of the sides of the central plug (40) and the cover (20) respectively.
    [0113] In either case, the gap between the lid (20) and the opening (12), and the gap between the center plug (40) and the center opening (21), may be a gap in the direction vertical, as shown in the exemplary embodiment of the figures, or it can be a separation in the horizontal direction, or a separation in an oblique direction, without altering the concept of the invention of generating the double air inlet with the central shutter (40) preventing visible parts of the extractor where dirt accumulates.
    [0115] Preferably, the cover (20) has a concave shape such that the first distance (D) in which the cover (20) is separated from the opening (12) of the main body (10) is variable along the cover (20), the first distance (D) presenting a central zone with a maximum separation (Dmax) between the cover (20) and the opening (12) of the main body (10) and some extreme zones with a minimum separation (Dmin) between the cover (20) and the opening (12) of the main body (10).
    [0117] Preferably, the central shutter (40) also has a concave shape, so that the second distance (d) in which the central shutter (40) is separated from the central opening (21) of the cover (20) is also variable along the central shutter (40). Thus, the second distance (d) also has a central zone with a maximum separation between the central shutter (40) and the central opening (21) of the cover (20) and extreme zones with a minimum separation between the central shutter ( 40) and the central opening (21) of the cover (20).
    [0119] As seen in the example of embodiment shown in Figures 1 to 7, the main body (10) has a preferably cylindrical configuration, while the upper end (11) of the main body (10), the cover (20) and its central opening (21), as well as the central shutter (40), have a preferably square configuration. In any case, the square configuration is not limiting, the central shutter (40) and / or the cover (20) being able to present other types of shapes without altering the concept of the invention, such as, for example, another polygonal shape of minus three sides, or a circular shape.
    [0121] According to said preferred embodiment, the upper end (11) of the main body (10), the cover (20), its central opening (21), and the central shutter (40) respectively have four sides, the sides being of each of said parts (11,20,21,40) of the extractor approximately parallel to each other.
    [0123] As observed in detail in Figures 3, 5 and 7, the supports (24) that connect the shutter There are four central (40) to the cover (20), each of the supports (24) being arranged in the center of one of the sides of the cover (20), and the section with the least thickness remaining in the laminar configuration of the support (24) arranged facing the front air intake (F).
    [0125] As shown in detail in Figures 3 and 5, the connecting means (15,16,22,23) between the cover (20) and the main body (10) comprise projections (15,16) arranged at the end upper (11) of the main body (10) and some housings (22,23) arranged on the inside of the cover (20).
    [0127] As shown in figure 5, a stepped area is established between the projections (15,16) and the housings (22,23) to establish a stop for the insertion of the projections (15,16) in the housings (22,23). ).
    [0129] Specifically, and as shown in the exemplary embodiment shown in the figures, the removable connecting means comprise three projections (15) and three housings (22) in one way, and a projection (16) and a housing (23) of another different way to allow unambiguous mounting.
    [0131] As shown in figure 5, the projection (16) and the housing (23) of the other different shape are open on the inside to allow the passage of the light guide of the indicator light.
    [0133] As shown in Figures 1 and 2, each of the four sides of the cover (20) has a radius of curvature concavely, such that the first distance (D) at which each side of the cover is separated (20) of the main body (10) is variable along the side of the cover (20). Each side of the cover (20) presents the maximum separation (Dmax) in the center of said side and presents the minimum separation (Dmin) at the ends of said side. The radius of curvature of the sides of the cover (20) allows the maximum separation to originate in a position close to the opening (12) of the main body (10) through which the air is sucked, while the minimum separation is originates in the positions furthest from the opening (12).
    [0135] Preferably the radius of curvature of each side of the cover (20) is between 300mm and 450mm.
    [0136] Also as shown in Figures 1 and 2, each of the four sides of the central plug (40) has a concave radius of curvature, such that the second distance (d) at which each side of the plug is separated center (40) of the lid (20) is variable along the side of the central shutter (40). Each side of the central plug (40) presents the maximum separation in the center of said side and presents the minimum separation in the ends of said side. As previously described, the radius of curvature of the sides of the central plug (40) allows the maximum separation to originate in a position close to the opening (12) of the main body (10) through which the air, while the minimum separation originates from the positions furthest from the opening (12). For reasons of clarity in the figures, the references regarding the maximum and minimum separation between the central shutter (40) and the cover (20) are not shown in the figures.
    [0138] Preferably the radius of curvature of each side of the central shutter (40) is between 300mm and 450mm.
    [0140] Even more preferably the radius of curvature on each side of the cap (20) and the central plug (40) is the same, so that a continuous curvature is maintained between the cap (20) and the central plug (40) which improves the aesthetics of the extractor.
    [0142] Figures 8A, 8B and 8C show a comparison of the direction followed by the flow of the exhaust air in three exhaust fans. Figure 8A shows a prior art extractor with a front air intake (F), Figure 8B shows a prior art extractor with a side air intake (S), and Figure 8C shows an extractor according to the invention with a side air intake (S) and a front air intake (F).
    [0144] The extractor of figure 8A has a front cover is orified and the air is sucked in a coaxial direction with the propeller axis, passing through a protection grille, while the extractor of figure 8B has a front cover smooth that does not have any holes, and in this case the air is sucked in laterally, from the four sides of the extractor.
    [0146] The extractor of figure 8A has the drawback that it is not very aesthetic since it leaves the grille and the propeller visible, in addition, the dirt that tends to adhere to them is difficult to remove due to the irregular shapes of both. However, it has the advantage that the Air flow is continuous, without changes in direction, resulting in high aerodynamic efficiency.
    [0148] The extractor of figure 8B has the advantage that it does not get dirty and in case that happens, since the front cover is smooth, it is very easy to clean. However, it has the disadvantage of lower performance than the extractor of figure 8A. In effect, the four air flows enter from the four sides in a direction perpendicular to the exit direction, which forces the air to make a 90 ° turn, also when the four flows enter in opposite directions two to two, they collide with each other inside the extractor just below the cover producing turbulence, greater noise and a decrease in the flow and pressure performance of the extractor due to this shock and these turbulences.
    [0150] The extractor of the invention (see figure 8C) combines the advantages of the extractors of figures 8A and 8B, without presenting any of its drawbacks. The cover (20) has the central opening (21) partially closed by the central shutter (40) so that between them two air passages are created (in the case of rectangular figures) of dimensions calculated to cause the frontal flow air (F) (dashed lines) with a sufficient air speed to help make a 90 ° turn to the four lateral air flows (S) (solid line), thus avoiding the collision between them. The consequence of having this frontal flow (F) "guide" of the lateral flows (S) is that the aerodynamic performance of the extractor proposed by the invention are similar to the performance of the extractor of figure 8A, as well as the tendency the non-soiling and the ease of cleaning are similar to those of the extractor of figure 8B.
    权利要求:
    Claims (14)
    [1]
    1 Double air inlet extractor characterized by comprising:
    • a main body (10) having an upper end (11) with an opening (12) for air aspiration,
    • a cover (20) arranged on the upper end (11) of the main body (10), and
    • a propeller-motor assembly (30) housed in the main body (10), the propeller of the propeller-motor assembly (30) being arranged in the opening (12) for the aspiration of air from the main body (10), and in where:
    or the cover (20) is separated a first distance (D) from the opening (12) of the upper end (11) of the main body (10), such that between the cover (20) and the opening (12) of the upper end (11) of the main body (10), a lateral air intake intake (S) is defined for the conduction of air from the side intake (S) to the opening (12) of the upper end (11) of the main body (10). ), and where
    or the lid (20) has a central opening (21) that is partially covered by a central shutter (40), the central shutter (40) being separated a second distance (d) from the central opening (21) of the lid ( 20), such that between the central shutter (40) and the central opening (21) of the cover (20) a front air intake intake (F) is defined for air conduction from the front intake (F) to the opening (12) of the main body (10).
    [2]
    2. - Extractor according to the preceding claim, characterized in that the central plug (40) has an external dimension that is equal to or less than the internal dimension of the central opening (21) of the cover (20).
    [3]
    3. - Extractor according to the preceding claim, characterized in that it additionally comprises connecting means (15,16,22,23) to establish a removable connection between the cover (20) and the upper end (11) of the main body (10) .
    [4]
    4. - Extractor according to the preceding claim, characterized in that one (16,23) of the connecting means (15,16,22,23) has a different shape from the other connecting means (15,22) to establish an assembly unambiguous of the cover (20) on the main body (10).
    [5]
    5. - Extractor according to the preceding claim, characterized in that the connecting means (16,23) having the different shape house a light indicator of a state of exhaust operation.
    [6]
    6. - Extractor according to any one of the preceding claims, characterized in that the central shutter (40) is connected to the cover (20) through supports (24).
    [7]
    7. - Extractor according to the preceding claim, characterized in that the supports (24) have a laminar configuration with a thinner section that is arranged facing the front air intake (F).
    [8]
    8. Extractor according to claim 6, or 7, characterized in that the supports (24) are arranged in diametrically opposite positions and equidistant from each other, each of the supports (24) being arranged in the center of one of the sides of the cover (20).
    [9]
    9. - Extractor according to any one of the preceding claims, characterized in that the opening (12) of the main body (10) and the central opening (21) of the cover (20) are aligned, the central plug (40) being arranged aligned with both openings (12,21).
    [10]
    10. - Extractor according to any one of the preceding claims, characterized in that the cover (20) has a domed area (25) on the periphery of the central opening (21).
    [11]
    11. - Extractor according to any one of the preceding claims, characterized in that the first separation distance (D) between the cover (20) and the opening (12) of the upper end (11) of the main body (10) is comprised between 10 mm and 20 mm.
    [12]
    12. - Extractor according to any one of the preceding claims, characterized in that the second distance (d) of separation between the central plug (40) and the central opening (21) of the cover (20) is comprised between 5 mm and 10 mm .
    [13]
    13. Extractor according to any one of the preceding claims, characterized in that the cover (20) has a concave shape, such that the first distance (D) has a central area with a maximum separation (Dmax) between the cover (20) and the opening (12) of the main body (10) and end areas with a minimum separation (Dmin) between the cover (20) and the opening (12) of the main body (10).
    [14]
    14. Extractor according to any one of the preceding claims, characterized in that the central seal (40) has a concave shape, such that the second distance (d) has a central area with a maximum separation between the central shutter (40) and the central opening (21) of the cover (20) and end areas with a minimum separation between the central shutter (40) and the central opening (21) of the cover (20).
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    同族专利:
    公开号 | 公开日
    AU2019410914A1|2021-07-01|
    WO2020128123A1|2020-06-25|
    ES2769475B2|2021-10-21|
    EP3901467A1|2021-10-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1793126A2|2005-11-30|2007-06-06|Greenwood Air Management Limited|Vibration damped electric fan|
    ES2385592A1|2010-12-30|2012-07-27|Soler & Palau Research, S.L.|Centrifugal exhaust fan for bathrooms|
    CN202391766U|2011-12-09|2012-08-22|中山市欧帝尔电器照明有限公司|Novel multifunctional exhaust fan|
    EP2775147A2|2013-03-05|2014-09-10|NuAire Limited|A dual inlet extract fan assembly|
    CN104213619A|2014-07-21|2014-12-17|博麟水电材料有限公司|Bath lavatory ventilator|
    ES2251878B1|2004-10-26|2007-02-16|SOLER & PALAU, S.A.|AXIAL FLOW AIR EXTRACTOR FOR BATHROOMS AND SIMILAR.|
    ES2292344B1|2006-04-19|2009-05-05|SOLER & PALAU, S.A.|SHOCK ABSORBER HOUSING FOR THE MOTOR OF A TOILET AND BATHROOM EXTRACTOR.|
    法律状态:
    2020-06-25| BA2A| Patent application published|Ref document number: 2769475 Country of ref document: ES Kind code of ref document: A1 Effective date: 20200625 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201831268A|ES2769475B2|2018-12-21|2018-12-21|DOUBLE AIR INLET EXTRACTOR|ES201831268A| ES2769475B2|2018-12-21|2018-12-21|DOUBLE AIR INLET EXTRACTOR|
    AU2019410914A| AU2019410914A1|2018-12-21|2019-11-20|Double-inlet air extractor|
    PCT/ES2019/070793| WO2020128123A1|2018-12-21|2019-11-20|Double-inlet air extractor|
    EP19899590.4A| EP3901467A1|2018-12-21|2019-11-20|Double-inlet air extractor|
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