ES2877768A1 - MANUFACTURING PROCESS OF AN AIR MOVEMENT IMPELLER, IMPELLER SO OBTAINED AND EXTRACTOR ASSEMBLY INCLUDING SAID IMPELLER (Machine-translation by Google Translate, not legally binding) - Google Patents

MANUFACTURING PROCESS OF AN AIR MOVEMENT IMPELLER, IMPELLER SO OBTAINED AND EXTRACTOR ASSEMBLY INCLUDING SAID IMPELLER (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES2877768A1
ES2877768A1 ES202030441A ES202030441A ES2877768A1 ES 2877768 A1 ES2877768 A1 ES 2877768A1 ES 202030441 A ES202030441 A ES 202030441A ES 202030441 A ES202030441 A ES 202030441A ES 2877768 A1 ES2877768 A1 ES 2877768A1
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Spain
Prior art keywords
impeller
outer casing
conical outer
blades
air movement
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Pending
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ES202030441A
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Spanish (es)
Inventor
Burch Albert Bach-Esteve
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Soler and Palau Research SL
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Soler and Palau Research SL
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Application filed by Soler and Palau Research SL filed Critical Soler and Palau Research SL
Priority to ES202030441A priority Critical patent/ES2877768A1/en
Priority to PCT/ES2021/070133 priority patent/WO2021229116A1/en
Publication of ES2877768A1 publication Critical patent/ES2877768A1/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/28Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16Laser beams
    • B29C65/1629Laser beams characterised by the way of heating the interface
    • B29C65/1635Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329Details of the hub
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38Blades
    • F04D29/388Blades characterised by construction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Manufacturing process of an air movement impeller for ventilation installations, the impeller composed of a propeller body and a conical outer casing, the propeller body being formed by a core from which blades exit radially that are joined by a end on the conical outer casing, and that the process comprises arranging the propeller body and the conical outer casing centered on each other, with said end of the blades in contact with the inner face of the conical outer casing by an edge of said end, to then project, from the external part of the conical outer casing, a laser projection, which passes through the conical outer casing and impinges on the edge of said end to produce a weld between the blades and the conical outer casing. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPCIÓNDESCRIPTION

PROCESO DE FABRICACIÓN DE UN RODETE DE MOVIMIENTO DE AIRE, RODETE ASÍ MANUFACTURING PROCESS OF AN AIR MOVEMENT IMPELLER, SO

OBTENIDO Y CONJUNTO EXTRACTOR QUE COMPRENDE DICHO RODETEOBTAINED AND EXTRACTOR ASSEMBLY INCLUDING SAID IMPELLER

Sector de la técnicaTechnical sector

La presente invención está relacionada con los aparatos que se disponen en las instalaciones de aireación o ventilación para impulsar el aire, proponiendo un rodete de movimiento del aire, con características ventajosas en su proceso de fabricación y en el resultado de la formación estructural que se obtiene con dicho proceso de fabricación.The present invention is related to the devices that are arranged in the aeration or ventilation installations to drive the air, proposing an impeller for the movement of the air, with advantageous characteristics in its manufacturing process and in the result of the structural formation that is obtained. with said manufacturing process.

Estado de la técnicaState of the art

En las instalaciones de aireación y ventilación es habitual la incorporación de aparatos de impulsión del aire en los conductos de circulación, comprendiendo dichos aparatos un rodete provisto con un cuerpo de hélice, para mover el aire mediante un accionamiento giratorio proporcionado por un motor, yendo dicho cuerpo de hélice rodeado por una carcasa exterior que aumenta las prestaciones de caudal y presión y reduce el ruido que pueda ocasionar el rodete en su funcionamiento.In aeration and ventilation installations it is common to incorporate air drive devices in the circulation ducts, said devices comprising an impeller provided with a propeller body, to move the air by means of a rotary drive provided by a motor, said devices being Propeller body surrounded by an outer casing that increases the flow and pressure performance and reduces the noise that the impeller may cause in its operation.

El cuerpo de hélice y la carcasa exterior de un rodete de ese tipo, para movimiento del aire, son convencionalmente de plástico y van unidos en un solo elemento que gira conjuntamente por la acción del motor de accionamiento, estando formado el cuerpo de hélice por un núcleo, desde el cual salen unos álabes radiales que se unen por su extremo libre a la carcasa exterior del rodete, estableciéndose convencionalmente las uniones por medio de unos tetones que sobresalen en el borde extremo de los álabes y que pasan por unos orificios o aberturas correspondientes de la carcasa exterior, remachándose el extremo de dichos tetones en la parte externa de la carcasa mediante aplicación de calor.The propeller body and the outer casing of such an impeller, for air movement, are conventionally made of plastic and are joined in a single element that rotates jointly by the action of the drive motor, the propeller body being formed by a core, from which radial blades emerge that are attached at their free end to the outer casing of the impeller, the connections being conventionally established by means of lugs that protrude at the extreme edge of the blades and that pass through corresponding holes or openings of the outer casing, the end of said lugs being riveted on the outside of the casing by applying heat.

Esta realización resulta costosa y lenta de llevar a cabo, debido a la necesidad de hacer coincidir los tetones del borde extremo de los álabes del cuerpo de hélice, respecto de los orificios o aberturas correspondientes de la carcasa exterior, para hacer pasar dichos tetones hasta la posición de remachado por la parte externa. This embodiment is costly and time consuming to carry out, due to the need to make the lugs at the end edge of the blades of the propeller body coincide, with respect to the corresponding holes or openings in the outer casing, to make said lugs pass to the riveting position on the outside.

Además, con dicha unión por medio de tetones solo se obtiene una unión por puntos entre los álabes del cuerpo de hélice y la carcasa exterior, quedando zonas sin unir entre los puntos de unión, con lo cual resulta una unión que no cumple eficazmente con las condiciones requeridas de resistencia. Además de que en este tipo de ventiladores se persigue reducir el ruido generado de modo que con este procedimiento pueden generarse vibraciones y ruidos en el funcionamiento del rodete.In addition, with said connection by means of lugs, only a point connection is obtained between the blades of the propeller body and the outer casing, leaving unconnected areas between the connection points, which results in a connection that does not effectively comply with the requirements. required strength conditions. In addition to the fact that in this type of fans the aim is to reduce the noise generated so that with this procedure vibrations and noises can be generated in the operation of the impeller.

Existen rodetes, de aplicación en instalaciones de circulación de agua, formados con elementos metálicos, en los que la unión entre los elementos componentes se establece mediante soldaduras, pero en estos rodetes los álabes del cuerpo de hélice son de muy poca longitud en comparación con los álabes necesarios en los rodetes de movimiento de aire, con lo cual dichos rodetes para movimiento de agua no tienen los inconvenientes de posicionamiento que presentan los rodetes de movimiento de aire para realizar la unión entre el cuerpo de hélice y la carcasa exterior, que hace que hasta la fecha no se haya aplicado la soldadura para unión entre los dos elementos componentes de los rodetes de movimiento de aire.There are impellers, for application in water circulation installations, formed with metallic elements, in which the union between the component elements is established by welding, but in these impellers the blades of the propeller body are of very short length compared to the blades necessary in the air movement impellers, whereby said water movement impellers do not have the positioning drawbacks that air movement impellers present to make the connection between the propeller body and the outer casing, which makes To date, no welding has been applied to join the two component elements of the air movement impellers.

Objeto de la invenciónObject of the invention

De acuerdo con la presente invención se propone un proceso de fabricación de un rodete para movimiento de aire, con el cual se facilita una unión eficaz por soldadura entre los elementos componentes del rodete, consiguiéndose una realización estructural ventajosa del rodete que se obtiene. También es objeto de la invención un conjunto extractor de aire, para ir intercalado en un conducto de aire, que comprende dicho rodete.In accordance with the present invention, a manufacturing process of an air movement impeller is proposed, with which an effective union by welding between the component elements of the impeller is facilitated, achieving an advantageous structural realization of the impeller that is obtained. Another object of the invention is an air extractor assembly, to be inserted in an air duct, comprising said impeller.

El proceso de fabricación según la invención consiste en la utilización de un cuerpo de hélice y una carcasa exterior cónica constituidos de material plástico, de tal modo que la carcasa exterior cónica es de un material transparente a los rayos láser, es decir, los rayos láser atraviesan dicha carcasa exterior sin calentarla. El material de la carcasa exterior cónica puede ser, por ejemplo, de material plástico ABS, preferentemente sin colorantes para reducir o evitar la absorción de los rayos láser. Mientras que el cuerpo de álabes es de un material opaco a los rayos láser, es decir, absorbe los rayos los rayos láser que inciden sobre el mismo calentándolo, y en consecuencia produciendo una soldadura entre los álabes y la carcasa exterior cónica. Para que el material de los álabes opaco a los rayos láser aumente la absorción de la proyección láser, preferentemente el material de los álabes comprende aditivos, por ejemplo, hollín también llamado negro de humo o "carbón black”, de modo que se aumenta la absorción de los rayos láser y en consecuencia se produce un mayor calentamiento del borde en el que inciden los rayos láser.The manufacturing process according to the invention consists in the use of a propeller body and a conical outer casing made of plastic material, in such a way that the conical outer casing is made of a material transparent to laser rays, that is to say, laser rays. they pass through said outer casing without heating it. The material of the conical outer shell can be, for example, ABS plastic material, preferably without colorants to reduce or avoid the absorption of laser rays. While the body of blades is made of a material that is opaque to laser rays, that is, it absorbs the rays of the laser rays that strike it by heating it, and consequently producing a weld between the blades and the conical outer casing. In order for the laser-opaque blade material to increase the absorption of the laser projection, preferably the blade material comprises additives, for example, soot also called carbon black or "carbon black", so that the absorption of the laser rays is increased and consequently there is a greater heating of the edge where the laser rays hit.

De esta forma, se disponen dichos elementos en un utillaje que los posiciona centrados entre sí, manteniendo el contacto de los álabes del cuerpo de hélice contra la superficie interna de la carcasa exterior cónica mediante una fuerte presión ejercida por una máquina de soldar empleada para realizar la soldadura por proyección láser. Se aplica entonces por la parte externa una proyección láser, la cual pasa a través de la pared de la carcasa exterior cónica, para incidir en un borde del extremo de los álabes del cuerpo de hélice en contacto con la carcasa exterior cónica. El rayo láser produce un calentamiento que funde el material de dicho borde del extremo de los álabes que al estar presionados contra la carcasa exterior cónica a su vez la calientan por contacto fundiéndose ambos materiales y ocasionando su soldadura.In this way, said elements are arranged in a tool that positions them centered among themselves, keeping the contact of the blades of the propeller body against the internal surface of the conical outer casing by means of a strong pressure exerted by a welding machine used to carry out laser projection welding. A laser projection is then applied on the outside, which passes through the wall of the conical outer casing, to strike an edge of the end of the blades of the propeller body in contact with the conical outer casing. The laser beam produces a heating that melts the material of said edge of the end of the blades that, when pressed against the conical outer casing, in turn heat it by contact, melting both materials and causing them to be welded.

Para que el proceso de soldadura se realice en las condiciones óptimas, está previsto la disposición de sensores de temperatura y de desplazamiento en la máquina de soldar, los cuales controlan la aplicación de la proyección láser para que se adapte a las superficie de los álabes y a las condiciones de temperatura necesarias durante la soldadura.For the welding process to be carried out in optimal conditions, temperature and displacement sensors are provided in the welding machine, which control the application of the laser projection so that it adapts to the surface of the blades and the necessary temperature conditions during welding.

Además, la proyección láser se efectúa de manera continua a lo largo de todo el borde extremo de los álabes del cuerpo de hélice, siguiendo la línea central media del grosor de dicho borde, con lo cual se obtienen unas soldaduras que aseguran una unión totalmente eficaz entre el cuerpo de hélice y la carcasa exterior cónica.In addition, the laser projection is carried out continuously along the entire extreme edge of the blades of the propeller body, following the middle central line of the thickness of said edge, with which welds are obtained that ensure a totally effective joint. between the propeller body and the conical outer casing.

Resulta así un procedimiento sencillo y rápido para fabricar un rodete de movimiento de aire compuesto por elementos de material plástico, los cuales se establecen unidos entre sí por soldadura de los bordes del extremo de los álabes del cuerpo de hélice sobre la carcasa exterior cónica, sin problemas de posicionamiento, ya que para las soldaduras de unión solo es necesario un contacto con presión entre las partes a unir, sin necesidad de inserciones de encaje.This results in a simple and fast procedure to manufacture an air movement impeller composed of elements of plastic material, which are established together by welding the edges of the end of the blades of the propeller body on the conical outer casing, without positioning problems, since for the joint welds only a pressure contact between the parts to be joined is necessary, without the need for insert inserts.

Las uniones entre los elementos componentes del rodete se establecen además mediante soldaduras continuas en toda la longitud de los bordes del extremo de los álabes del cuerpo de hélice, sobre la carcasa exterior cónica. Se determina así una formación estructural rígida y resistente del rodete que se obtiene, permitiéndole soportar con seguridad los esfuerzos del funcionamiento en las utilizaciones de aplicación, de modo que resulta duradero para su función. Además de que no se generan sobrantes de material o rebordes que pudieran ocasionar un flujo de aire deficiente y la consecuente generación de vibraciones y ruidos.The joints between the component elements of the impeller are further established by continuous welds along the entire length of the edges of the end of the blades of the propeller body, on the conical outer casing. In this way, a rigid and resistant structural formation of the impeller is obtained, allowing it to safely withstand the stresses of the impeller. performance in application uses, so that it is durable for its function. In addition to the fact that no excess material or edges are generated that could cause poor air flow and the consequent generation of vibrations and noise.

Por todo ello, con el objeto de la invención se obtiene una realización de características constructivas y funcionales ventajosas en la fabricación de rodetes de movimiento de aire en los que prevalece las máximas prestaciones de caudal y presión junto con la reducción de vibraciones y ruidos, resultando esta realización con vida propia y carácter preferente respecto de las técnicas convencionales que se aplican para la fabricación de rodetes de la misma función.Therefore, with the object of the invention, an embodiment of advantageous constructive and functional characteristics is obtained in the manufacture of air movement impellers in which the maximum flow and pressure performance prevails together with the reduction of vibrations and noise, resulting in this embodiment with its own life and preferential character with respect to the conventional techniques that are applied for the manufacture of runners with the same function.

Descripción de las figurasDescription of the figures

La figura 1 muestra en perspectiva explosionada un rodete de movimiento de aire, con los elementos componentes dispuestos para su unión según el proceso de la invención.Figure 1 shows an exploded perspective view of an air movement impeller, with the component elements arranged to be joined according to the process of the invention.

La figura 2 es una perspectiva del rodete de la invención con los elementos componentes unidos.Figure 2 is a perspective of the impeller of the invention with the component elements attached.

La figura 3 es una vista lateral en alzado del rodete.Figure 3 is a side elevation view of the impeller.

La figura 4 es una vista en sección diametral del rodete, según la indicación IV-IV señalada en la figura 5.Figure 4 is a diametrical sectional view of the impeller, according to indication IV-IV indicated in Figure 5.

La figura 5 es una vista en planta del rodete, con el borde del extremo de los alabes a soldar en línea discontinua para una mejor visualización.Figure 5 is a plan view of the impeller, with the edge of the end of the blades to be welded in a broken line for a better visualization.

Descripción detallada de la invenciónDetailed description of the invention

El objeto de la invención se refiere a un proceso de fabricación para la realización de un rodete de movimiento de aire, mediante la unión de un cuerpo de hélice (1) y una carcasa exterior cónica (2), entrando en el ámbito de la invención, asimismo, las características estructurales del rodete que se obtiene con dicho proceso de fabricación; estando formado el cuerpo de hélice (1) por un núcleo (1.1) destinado para el montaje sobre el eje de un motor de accionamiento giratorio en particular de un ventilador de instalaciones de ventilación, desde cuyo núcleo (1.1) salen radialmente unos álabes (1.2) que son los destinados a mover el aire, uniéndose dichos álabes (1.2) por su extremo libre sobre la carcasa exterior cónica (2).The object of the invention refers to a manufacturing process for the realization of an air movement impeller, by joining a propeller body (1) and a conical outer casing (2), falling within the scope of the invention. likewise, the structural characteristics of the impeller obtained with said manufacturing process; the propeller body (1) being formed by a core (1.1) intended for mounting on the shaft of a rotary drive motor, in particular a fan of ventilation installations, from the core (1.1) of which blades (1.2) come out radially, which are intended to move the air, said blades (1.2) joining at their free end on the conical outer casing (2).

El proceso de fabricación se basa en la utilización de un cuerpo de hélice (1) y una carcasa exterior cónica (2) constituidos de material plástico, incorporando el material constructivo de los alabes (1.2) aditivos que hacen, que su material sea opaco a los rayos láser, siendo el aditivo empleado preferentemente negro humo o "carbón black”. Y en el caso de la carcasa exterior cónica (2) su material es transparente a los rayos láser, preferentemente el material empleado será plástico ABS, de forma que no se utilizan aditivos ni colorantes para reducir o evitar la absorción de los rayos láser permitiendo que pasen a través de la carcasa exterior cónica (2) para incidir en los alabes (1.2).The manufacturing process is based on the use of a propeller body (1) and a conical outer casing (2) made of plastic material, incorporating the construction material of the blades (1.2) additives that make their material opaque to laser rays, the additive used preferably being smoke black or "carbon black". And in the case of the conical outer casing (2) its material is transparent to laser rays, preferably the material used will be ABS plastic, so that it does not Additives or colorants are used to reduce or prevent the absorption of laser rays allowing them to pass through the conical outer casing (2) to strike the blades (1.2).

Para establecer la unión entre los dos elementos mencionados componentes del rodete, dichos elementos se disponen en un utillaje de una máquina de soldadura, que los posiciona centrados entre sí, aplicándose en esa disposición una presión que hace que los álabes (1.2) del cuerpo de hélice (1) contacten en apoyo con su borde (1.3) sobre la superficie interna de la carcasa exterior cónica (2).To establish the union between the two elements mentioned components of the impeller, said elements are arranged in a tooling of a welding machine, which positions them centered among themselves, applying a pressure in that arrangement that causes the blades (1.2) of the body of propeller (1) contact in support with its edge (1.3) on the internal surface of the conical outer casing (2).

Una vez así, desde la parte externa se aplica, sobre las zonas de contacto entre los álabes (1.2) del cuerpo de hélice (1) y la carcasa exterior cónica (2), una proyección láser, la cual pasa a través de la pared de la carcasa exterior cónica (2), que es transparente al láser, incidiendo sobre el borde (1.3) del extremo de los álabes (1.2), cuyo material es opaco al láser, absorbiendo el mismo. De forma que la acción de la proyección láser produce un calentamiento que funde el material de dicho borde (1.3) del extremo de los álabes (1.2) y el calentamiento de la carcasa exterior cónica (2) en contacto con dicho borde (1.3), ocasionando su unión por soldadura.Once this is the case, from the outside, a laser projection is applied to the contact areas between the blades (1.2) of the propeller body (1) and the conical outer casing (2), which passes through the wall. of the conical outer casing (2), which is transparent to the laser, striking the edge (1.3) of the end of the blades (1.2), whose material is opaque to the laser, absorbing the same. So that the action of the laser projection produces a heating that melts the material of said edge (1.3) of the end of the blades (1.2) and the heating of the conical outer casing (2) in contact with said edge (1.3), causing their union by welding.

Para obtener unas soldaduras adecuadas en esas uniones entre los álabes (1.2) del cuerpo de hélice (1) y la carcasa exterior cónica (2), está previsto que la máquina de soldadura incorpore sensores de temperatura y de desplazamiento, los cuales controlan la realización de las soldaduras para que se efectúen en las condiciones óptimas y según la forma del borde (1.3) de los álabes (1.2). De manera que se proyecta el láser de forma continua a todo lo largo del borde (1.3) del extremo de cada uno de los álabes (1.2), siguiendo con precisión la línea central media del grosor de dicho borde (1.3) del extremo de los álabes (1.2). In order to obtain adequate welds in those joints between the blades (1.2) of the propeller body (1) and the conical outer casing (2), it is foreseen that the welding machine incorporates temperature and displacement sensors, which control the performance of the welds so that they are carried out in the optimal conditions and according to the shape of the edge (1.3) of the blades (1.2). So that the laser is projected continuously along the entire edge (1.3) of the end of each of the blades (1.2), precisely following the middle central line of the thickness of said edge (1.3) of the end of the blades. blades (1.2).

El proceso de fabricación resulta así fácil de efectuarse para la fo rm ación constructiva de rodetes de im pulsión de a ire com puestos por un cuerpo de hélice (1) y una carcasa exterio r cónica (2), constitu idos de m ateria l p lástico, los cuales se unen entre sí de una form a e ficaz y resistente, m ediante so ldaduras continuas entre el borde (1.3) del extrem o de cada uno de los á labes (1.2) del cuerpo de hélice (1) y la carcasa exte rio r cónica (2).The manufacturing process is thus easy to carry out for the constructive formation of air drive impellers made up of a propeller body (1) and a conical outer casing (2), made of plastic material. , which are joined together in an effective and resistant way, by means of continuous welds between the edge (1.3) of the end of each of the blades (1.2) of the propeller body (1) and the outer casing. conical river r (2).

Este rodete es em pleado en la fabricación de un con junto de extracto r de a ire para insta lación en conductos de aire, en los que se precisa que, adem ás de ob tener las m áxim as prestaciones de caudal y presión, las v ibraciones y ru idos generados por el con junto extracto r sean lo más bajos posible. This impeller is used in the manufacture of an air extractor assembly for installation in air ducts, in which it is specified that, in addition to obtaining the maximum flow and pressure performance, the v ibrations and noises generated by the extract assembly r are as low as possible.

Claims (4)

REIVINDICACIONES 1.- P roceso de fabricación de un rodete de m ovim iento de a ire para insta laciones de ventilación, el rodete com puesto por un cuerpo de hélice (1) y una carcasa exte rio r cónica (2), que son de m ateria l plástico, estando form ado el cuerpo de hélice (1) por un núcleo (1.1) desde el cual salen rad ia lm ente unos á labes (1.2) que se unen por un extrem o sobre la carcasa exte rio r cónica (2), caracterizado porque el proceso com prende d isponer el cuerpo de hélice (1) y la carcasa ex te rio r cónica (2) centrados entre sí, con d icho extrem o de los a labes (1.2) en contacto con la cara interna de la carcasa exte rio r cónica (2) por un borde (1.3) de d icho extrem o, para entonces proyectar, desde la parte externa de la carcasa exte rio r cónica (2), una proyección láser, la cual pasa a través de la carcasa exte rio r cónica (2) e incide sobre el borde (1.3) de d icho extrem o para producir una so ldadura entre los á labes (1.2) y la carcasa exte rio r cónica (2).1.- Manufacturing process of an air movement impeller for ventilation installations, the impeller made up of a propeller body (1) and a conical outer casing (2), which are m plastic material, the helix body (1) being formed by a core (1.1) from which blades (1.2) radiate out that are joined at one end on the conical outer casing (2 ), characterized in that the process comprises arranging the propeller body (1) and the conical outer casing (2) centered on each other, with said end of the blades (1.2) in contact with the inner face of the conical outer casing (2) by an edge (1.3) of said end, to then project, from the external part of the conical outer casing (2), a laser projection, which passes through of the conical outer casing (2) and impinges on the edge (1.3) of said end to produce a weld between the blades (1.2) and the conical outer casing (2). 2.- P roceso de fabricación de un rodete de m ovim iento de aire, de acuerdo con las re iv ind icaciones 1 o 2, caracterizado porque la proyección láser se e fectúa de m anera continua lo largo de todo el borde (1.3) del extrem o de cada uno de los á labes (1.2)2.- Manufacturing process of an air movement impeller, in accordance with re iv indications 1 or 2, characterized in that the laser projection is carried out continuously along the entire edge (1.3) of the end of each of the blades (1.2) 3. - Rodete de m ovim iento de a ire que se obtiene según una cua lqu ie ra de las re iv ind icaciones anteriores.3. - Air movement impeller obtained according to any of the previous re iv indications. 4. - C on junto extracto r de aire que com prende un rodete según la re iv ind icación anterior. 4. - C on together air extractor comprising an impeller according to the previous indication re iv.
ES202030441A 2020-05-14 2020-05-14 MANUFACTURING PROCESS OF AN AIR MOVEMENT IMPELLER, IMPELLER SO OBTAINED AND EXTRACTOR ASSEMBLY INCLUDING SAID IMPELLER (Machine-translation by Google Translate, not legally binding) Pending ES2877768A1 (en)

Priority Applications (2)

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ES202030441A ES2877768A1 (en) 2020-05-14 2020-05-14 MANUFACTURING PROCESS OF AN AIR MOVEMENT IMPELLER, IMPELLER SO OBTAINED AND EXTRACTOR ASSEMBLY INCLUDING SAID IMPELLER (Machine-translation by Google Translate, not legally binding)
PCT/ES2021/070133 WO2021229116A1 (en) 2020-05-14 2021-02-25 Process for manufacturing an air movement impeller, impeller thus obtained, and extractor assembly comprising said impeller

Applications Claiming Priority (1)

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ES202030441A ES2877768A1 (en) 2020-05-14 2020-05-14 MANUFACTURING PROCESS OF AN AIR MOVEMENT IMPELLER, IMPELLER SO OBTAINED AND EXTRACTOR ASSEMBLY INCLUDING SAID IMPELLER (Machine-translation by Google Translate, not legally binding)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2006075A1 (en) * 2006-03-28 2008-12-24 Daikin Industries, Ltd. Laser welding method, laser welding device, and production method of blower-use impeller
US20140241894A1 (en) * 2013-02-25 2014-08-28 Greenheck Fan Corporation Fan assembly and fan wheel assemblies
EP3009687A1 (en) * 2013-06-14 2016-04-20 Mitsubishi Electric Corporation Centrifugal fan, air conditioner, and method for manufacturing centrifugal fan

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2006075A1 (en) * 2006-03-28 2008-12-24 Daikin Industries, Ltd. Laser welding method, laser welding device, and production method of blower-use impeller
US20140241894A1 (en) * 2013-02-25 2014-08-28 Greenheck Fan Corporation Fan assembly and fan wheel assemblies
EP3009687A1 (en) * 2013-06-14 2016-04-20 Mitsubishi Electric Corporation Centrifugal fan, air conditioner, and method for manufacturing centrifugal fan

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