WO2022043593A1 - System for the attachment of a position sensor - Google Patents

System for the attachment of a position sensor Download PDF

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Publication number
WO2022043593A1
WO2022043593A1 PCT/ES2021/070469 ES2021070469W WO2022043593A1 WO 2022043593 A1 WO2022043593 A1 WO 2022043593A1 ES 2021070469 W ES2021070469 W ES 2021070469W WO 2022043593 A1 WO2022043593 A1 WO 2022043593A1
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WO
WIPO (PCT)
Prior art keywords
sensor
position sensor
housing
casing
displacement
Prior art date
Application number
PCT/ES2021/070469
Other languages
Spanish (es)
French (fr)
Inventor
Sergio Diez Garcia
Javier Garcia Izaguirre
Enrique Breton Cristobal
Original Assignee
Cebi Electromechanical Components Spain, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cebi Electromechanical Components Spain, S.A. filed Critical Cebi Electromechanical Components Spain, S.A.
Publication of WO2022043593A1 publication Critical patent/WO2022043593A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/945—Holders with built-in electrical component

Definitions

  • the present invention refers to a system for fixing a position sensor to measure the position of a movable element according to a direction of displacement.
  • the invention is especially applicable to electrical transmission couplings for electric or hybrid vehicles in which the coupling of the electric motor to one of the axles or axles of the vehicle is carried out by displacement.
  • the invention allows the coupling to be monitored by measuring the position of the offset.
  • Position sensors allow the position of a moving object to be determined and transformed into a signal transmitted to a control unit, being essential elements in control and measurement processes and common in many applications, such as industrial control, automation, robotics or the transport. Specifically, in the automotive sector, the importance of conveniently determining the position of some engine elements is clearly accepted.
  • Hall sensors and inductive sensors are worth mentioning. Basically, a Hall sensor detects the presence of magnetic objects, compared to inductive position sensors, which can detect metallic objects, without the need to be magnetized, which is one of the advantages of the latter.
  • the determination of the position is produced by means of a rotating electrical transformer, which, depending on its physical principle of operation, can be of the "encoder” or “resolver” type.
  • the fundamental difference between the two is that the first is a digital technology system while the second is an analog system.
  • the movable element whose movement is to be monitored with the position sensor incorporates a target element (“target”), magnetic in the case of Hall sensors or metallic, not necessarily ferromagnetic, in the case of inductive sensors, which cooperates with the sensor to determine the position of the displaceable element.
  • target magnetic in the case of Hall sensors or metallic, not necessarily ferromagnetic, in the case of inductive sensors, which cooperates with the sensor to determine the position of the displaceable element.
  • the displaceable element is housed in a casing that is normally closed and watertight to protect the external parts of the casing from splashes of lubricating oil from mechanical parts.
  • the position sensors are housed inside a casing configured to be fixed to the casing of the displaceable element.
  • the position sensor housing allows the proper arrangement and fixing of the electrical connection elements of the sensor, as well as protecting these elements from external agents.
  • the object of the present invention is to provide a compact and robust position sensor mounting system that allows easy mounting or installation.
  • the present invention provides a system for fixing a position sensor to measure the position of a displaceable element according to a direction of displacement, comprising a position sensor , a position sensor housing housing the position sensor and a displaceable element housing configured to receive the displaceable element.
  • the position sensor housing is fixed to the slider housing by inserting the position sensor housing into the slider housing in the direction of travel.
  • the element casing movable can have, for example, an opening or cavity for inserting the sensor housing.
  • the sensor housing fits into the movable element housing or into the insertion cavity.
  • the invention provides a fastening system that is easy to assemble or install simply by insertion.
  • the object of the present invention is a system for fixing a position sensor, especially intended for the coupling of electric transmission of hybrid vehicles which, being fixed to the casing of the movable element, is arranged in an operative position, parallel to the direction of travel, fulfilling its own measurement functions in a more efficient way.
  • the position sensor is preferably of the inductive type, in particular, with a resolver type of operation, without ruling out other embodiments with other types of sensor, such as Hall sensors.
  • Inductive position sensors offer high position measurement accuracy of up to approx. 0.1 mm In particular, it becomes possible to detect discrete coupling positions (disengaged, partially engaged, and engaged positions, in the displacement stroke of the movable element of the transmission).
  • the position sensor in particular inductive, extends along a plane which, with the position sensor housing attached to the movable element housing, is arranged parallel to the direction of movement, and can be implemented on a circuit board.
  • printed (PCB) relatively thin. This is possible due to the very configuration of the fixing system, which easily allows the flat sensor to be arranged parallel to the direction of travel. In this way, greater compactness is achieved. system.
  • the fastening system object of the present invention has special importance in the automotive sector, in which space problems are sometimes of special relevance, and where the precision of mechanical couplings provides quality to the product, this being decisive in the increase in the demand for commercialization in a market as diverse as that of the automobile.
  • the invention is applicable to electrical transmission couplings for vehicles, in which the coupling is carried out by displacement, with interlocking by teeth and channels between the electric motor and the transmission shaft.
  • Figures 1 and 2 represent respective perspectives of an embodiment of the invention where the arrangement of the position sensor casing fixed to the casing of the displaceable element is shown.
  • Figure 3 details a perspective view of the embodiment shown in figures 1 and 2 in which a cut is made in the casing of the displaceable element.
  • Figure 4 shows an exploded perspective view of the sensor assembly and the position sensor housing.
  • the figures show an embodiment of the fixing system of a position sensor (1), to detect the position of the displaceable element (5) according to the invention.
  • the sensor (1.4) is inductive (resolver type), being implemented on a relatively thin printed circuit board (PCB), offering high precision in position measurement.
  • the senor (1.4) is capable of providing a displacement position measurement for the electric transmission coupling of hybrid vehicles, although its use can be extended to other applications in different sectors of the industry.
  • the fixing system of a position sensor (1) is basically constituted by a position sensor casing (1.1) where the sensor (1.4) and other necessary elements will be housed, which will be placed, in the direction of movement (D), fixed to the casing of the displaceable element (2).
  • the casings (1.1), (2) are configured so that the position sensor casing (1.1) is fixed to the displaceable element casing (2) by inserting or inserting the sensor casing (1.1) in the casing of the displaceable element (2) translating it parallel to the direction of displacement (D).
  • the position sensor casing (1.1) extends laterally around the displaceable element casing (2) and between two opposite faces (2.1) perpendicular to the direction of displacement (D).
  • the fixation between both casings (1.1), (2) can be carried out by different means, one of these being mechanical fixation by means of screws.
  • two holes are arranged in the sensor housing (1.1) where metal bushings (1.9) are inserted as reinforcement.
  • the position sensor housing (1.1) is finished off with a sealing gasket (1.8) that provides sealing to the displaceable element housing (2) in the connection area between both housings (1.1.), (2) to prevent splashes of lubricating oil for the different mechanical parts housed inside.
  • PCB printed circuit board
  • connection pins (1.6) are attached to a printed circuit board (PCB) (1.3), fitting into holes provided for this purpose (1.3.1), located on the printed circuit board (PCB)
  • connection pins (1.6) are held by the support element (1.5), which, in turn, fits into holes (1.3.2) made in the printed circuit board (PCB)
  • the support element (1.5) fits into the cover (1.2).
  • connection pins (1.6) and its covering element configure the sensor wiring connector (1.7).
  • an actuator (3) is fixed, which can be rotary electric, or of any other type, to displace the displacement element (5).
  • the target element (4) is attached to the displaceable element (2), which, in this case, is metallic, not necessarily ferromagnetic.
  • the fixing system (1) comprises a sensor wiring connector (1.7) which, with the position sensor housing (1.1) fixed to the displaceable element housing (2), is arranged so that sensor wiring connects to sensor wiring connector (1.7) parallel to the direction of travel (D). This provides greater compactness to the system, as the connector does not protrude from the assembly.
  • the sensor wiring connector (1.7) is arranged so that the sensor wiring connects to the sensor wiring connector (1.7) in the opposite direction to the insertion direction of the sensor housing (1.1), i.e. connection of the sensor wiring connector (1.7) being oriented towards the opposite face (2.1) on which the position sensor housing (1.1) is fixed (see fig. 1).
  • This allows the arrangement of the connection cables connected to the sensor wiring connector (1 .7) on the position sensor housing (1.1).
  • the actuator (3) is fixed on the opposite face (2.1), thus allowing the compact grouping of the connector and actuator cables. And this additionally improves compactness.
  • the sensor (1) As it can be derived from what has been exposed here, it is based on a printed circuit board (1.3), where the sensor (1.4) is integrated, carrying out a signal processing when detecting the target element (4), is fixed to the displaceable element (5), an element that is mobile and whose position is to be detected.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

A system for the attachment of a position sensor (1) to measure the position of a movable element (5) in accordance with a direction of displacement (D), comprising: a position sensor (1.4), a position sensor casing (1.1) housing the position sensor (1.4), and a movable element casing (2) configured to house the movable element (5); where the position sensor casing (1.1) is attached to the movable element casing (2) by inserting the position sensor casing (1.1) into the movable element casing (2) in the direction of displacement (D).

Description

DESCRIPCION DESCRIPTION
SISTEMA DE FIJACIÓN DE UN SENSOR DE POSICIÓN SYSTEM FOR FIXING A POSITION SENSOR
Sector de la técnica Technical sector
La presente invención se refiere a un sistema de fijación de un sensor de posición para medir la posición de un elemento desplazable según una dirección de desplazamiento. The present invention refers to a system for fixing a position sensor to measure the position of a movable element according to a direction of displacement.
La invención es de especial aplicación a acoplamientos de transmisión eléctrica de vehículos eléctricos o híbridos en los que el acoplamiento del motor eléctrico a uno de los puentes o ejes del vehículo se realiza por desplazamiento. La invención permite monitorizar el acoplamiento midiendo la posición del desplazamiento. The invention is especially applicable to electrical transmission couplings for electric or hybrid vehicles in which the coupling of the electric motor to one of the axles or axles of the vehicle is carried out by displacement. The invention allows the coupling to be monitored by measuring the position of the offset.
Estado de la técnica state of the art
Los sensores de posición permiten determinar la posición de un objeto desplazable y transformarla en una señal transmitida a una unidad de control, siendo elementos fundamentales en los procesos de control y medición y habituales en multitud de aplicaciones, como control industrial, automatización, robótica o el transporte. En concreto, en el sector de la automoción, es manifiestamente aceptada la importancia de determinar convenientemente la posición de algunos elementos de los motores. Position sensors allow the position of a moving object to be determined and transformed into a signal transmitted to a control unit, being essential elements in control and measurement processes and common in many applications, such as industrial control, automation, robotics or the transport. Specifically, in the automotive sector, the importance of conveniently determining the position of some engine elements is clearly accepted.
Dentro de la gama de sensores de posición existentes, cabe mencionar los sensores Hall y los sensores inductivos. Básicamente, un sensor Hall detecta la presencia de objetos magnéticos, frente a los sensores inductivos de posición, que pueden detectar objetos metálicos, sin necesidad de estar magnetizados, lo cual es una de las ventajas de estos últimos. Within the range of existing position sensors, Hall sensors and inductive sensors are worth mentioning. Basically, a Hall sensor detects the presence of magnetic objects, compared to inductive position sensors, which can detect metallic objects, without the need to be magnetized, which is one of the advantages of the latter.
La determinación de la posición se produce mediante un transformador eléctrico rotatorio, que, según su principio físico de funcionamiento, puede ser de tipo “encoder” o “resolver”. La diferencia fundamental entre ambos reside en que el primero es un sistema de tecnología digital mientras que el segundo es un sistema analógico. The determination of the position is produced by means of a rotating electrical transformer, which, depending on its physical principle of operation, can be of the "encoder" or "resolver" type. The fundamental difference between the two is that the first is a digital technology system while the second is an analog system.
El elemento desplazable cuyo desplazamiento se quiere monitorizar con el sensor de posición incorpora un elemento de diana (“target”), magnético en el caso de los sensores Hall o metálico, no necesariamente ferromagnético, en el caso de los sensores inductivos, que coopera con el sensor para determinar la posición del elemento desplazadle. The movable element whose movement is to be monitored with the position sensor incorporates a target element (“target”), magnetic in the case of Hall sensors or metallic, not necessarily ferromagnetic, in the case of inductive sensors, which cooperates with the sensor to determine the position of the displaceable element.
El elemento desplazadle se aloja en una carcasa que, normalmente, es cerrada y estanca para proteger las partes externas de la carcasa de salpicaduras de aceite de ludricación de partes mecánicas. The displaceable element is housed in a casing that is normally closed and watertight to protect the external parts of the casing from splashes of lubricating oil from mechanical parts.
A su vez, los sensores de posición se alojan en el interior de una carcasa configurada para su fijación a la carcasa de elemento desplazadle. La carcasa de sensor de posición permite la adecuada disposición y fijación de los elementos de conexión eléctrica del sensor, así como proteger estos elementos de agentes externos. In turn, the position sensors are housed inside a casing configured to be fixed to the casing of the displaceable element. The position sensor housing allows the proper arrangement and fixing of the electrical connection elements of the sensor, as well as protecting these elements from external agents.
Los sistemas de fijación de sensores de posición conocidos presentan el inconveniente de que la carcasa de sensor de posición se fija a la carcasa desplazadle de forma que el conjunto del sistema de fijación ocupa un gran espacio o que por su propia configuración se dificulta su montaje o instalación como, por ejemplo, por la conexión del cadleado del sensor de posición o la estanqueidad de la carcasa de elemento desplazadle en la zona de conexión entre am das carcasas. Known position sensor fixing systems have the drawback that the position sensor casing is fixed to the movable casing in such a way that the whole fixing system occupies a large space or that its own configuration makes it difficult to assemble or installation such as, for example, by the connection of the position sensor wiring or the sealing of the casing of the displaceable element in the connection area between both casings.
La presente invención tiene como odjetivo proporcionar un sistema de fijación de sensor de posición compacto y rodusto que permita un montaje o instalación sencillos. The object of the present invention is to provide a compact and robust position sensor mounting system that allows easy mounting or installation.
Objeto de la invención Object of the invention
Con la finalidad de cumplir este odjetivo y solucionar los prodlemas técnicos comentados hasta el momento, la presente invención proporciona un sistema de fijación de un sensor de posición para medir la posición de un elemento desplazadle según una dirección de desplazamiento, que comprende un sensor de posición, una carcasa de sensor de posición que aloja el sensor de posición y una carcasa de elemento desplazadle configurada para alojar el elemento desplazadle. In order to meet this objective and solve the technical problems discussed so far, the present invention provides a system for fixing a position sensor to measure the position of a displaceable element according to a direction of displacement, comprising a position sensor , a position sensor housing housing the position sensor and a displaceable element housing configured to receive the displaceable element.
De acuerdo con la invención, la carcasa de sensor de posición se fija a la carcasa de elemento desplazadle por inserción de la carcasa de sensor de posición en la carcasa de elemento desplazadle en la dirección de desplazamiento. Se contempla que la carcasa de elemento desplazable pueda disponer, por ejemplo, de una abertura o cavidad de inserción de la carcasa de sensor. Asimismo, se contempla que la carcasa de sensor encaje en la carcasa de elemento desplazable o en la cavidad de inserción. According to the invention, the position sensor housing is fixed to the slider housing by inserting the position sensor housing into the slider housing in the direction of travel. It is contemplated that the element casing movable can have, for example, an opening or cavity for inserting the sensor housing. Also, it is contemplated that the sensor housing fits into the movable element housing or into the insertion cavity.
De este modo se consigue fijar la carcasa de sensor, y con ella el sensor, a la carcasa de elemento desplazable de forma compacta y robusta, haciendo posible reducir el volumen ocupado por el conjunto, al ocupar la carcasa de sensor el volumen disponible entre la carcasa de elemento desplazable y el elemento desplazable y minimizar el tamaño de la abertura o cavidad de inserción. Asimismo, la invención proporciona un sistema de fijación de fácil montaje o instalación simplemente por inserción. In this way it is possible to fix the sensor casing, and with it the sensor, to the movable element casing in a compact and robust way, making it possible to reduce the volume occupied by the assembly, as the sensor casing occupies the volume available between the movable element housing and the movable element and minimize the size of the insertion opening or cavity. Likewise, the invention provides a fastening system that is easy to assemble or install simply by insertion.
Y ello, incluso, con un menor coste, que deriva en beneficios económicos, sin alteración de su forma general de uso y sin restarle efectividad al mismo, en cuanto a su fin principal, que es poder obtener un registro de medidas posicionales respecto a otros elementos, con la oportuna precisión según los requerimientos de eficiencia demandados. And this, even, with a lower cost, which derives in economic benefits, without altering its general form of use and without reducing its effectiveness, in terms of its main purpose, which is to be able to obtain a record of positional measurements with respect to other elements, with the appropriate precision according to the demanded efficiency requirements.
Para ello, el objeto de la presente invención es un sistema de fijación de un sensor de posición, destinado, especialmente, al acoplamiento de transmisión eléctrica de vehículos híbridos que, fijándose a la propia carcasa del elemento desplazable, queda dispuesto en una posición operativa, paralela a la dirección de desplazamiento, cumpliendo sus funciones de medición, que le son propias, de una manera más eficiente. To this end, the object of the present invention is a system for fixing a position sensor, especially intended for the coupling of electric transmission of hybrid vehicles which, being fixed to the casing of the movable element, is arranged in an operative position, parallel to the direction of travel, fulfilling its own measurement functions in a more efficient way.
El sensor de posición es, preferentemente, de tipo inductivo, en particular, de funcionamiento tipo resolver, sin descartar otras realizaciones con otras tipologías de sensor, como sensores Hall. Los sensores de posición inductivos ofrecen una gran precisión en la medida de posición, de hasta aprox. 0,1 mm En especial, se hace posible detectar posiciones discretas de acoplamiento (posiciones de desacoplado, acoplado parcial y acoplado, en carrera de desplazamiento del elemento desplazable de la transmisión). The position sensor is preferably of the inductive type, in particular, with a resolver type of operation, without ruling out other embodiments with other types of sensor, such as Hall sensors. Inductive position sensors offer high position measurement accuracy of up to approx. 0.1 mm In particular, it becomes possible to detect discrete coupling positions (disengaged, partially engaged, and engaged positions, in the displacement stroke of the movable element of the transmission).
Preferentemente, el sensor de posición, en particular, inductivo, se extiende según un plano que, con la carcasa de sensor de posición fijada a la carcasa de elemento desplazable, se dispone paralelo a la dirección de desplazamiento, pudiendo implementarse en una placa de circuito impreso (PCB) relativamente delgada. Esto es posible debido a la propia configuración del sistema de fijación, que permite fácilmente la disposición del sensor plano paralelamente a la dirección de desplazamiento. De este modo se consigue una mayor compacidad del sistema. La utilización placas de circuitos impresos y componentes electrónicos (chips), redunda en un menor tamaño, menor coste y mayor precisión. Preferably, the position sensor, in particular inductive, extends along a plane which, with the position sensor housing attached to the movable element housing, is arranged parallel to the direction of movement, and can be implemented on a circuit board. printed (PCB) relatively thin. This is possible due to the very configuration of the fixing system, which easily allows the flat sensor to be arranged parallel to the direction of travel. In this way, greater compactness is achieved. system. The use of printed circuit boards and electronic components (chips), results in a smaller size, lower cost and greater precision.
La finalidad conseguida con el sistema de fijación objeto de la presente invención tiene especial transcendencia en el sector de la automoción, en el que los problemas de espacio, en ocasiones, son de especial relevancia, y donde la precisión de acoplamientos mecánicos dota de calidad al producto, siendo esta determinante en el aumento de la demanda de comercialización en un mercado tan diverso como el del automóvil. Así, la invención es aplicable en acoplamientos de transmisión eléctrica de vehículos, en las que el acoplamiento se realiza por desplazamiento, con enclave por dientes y canales entre el motor eléctrico y el eje de transmisión. The purpose achieved with the fastening system object of the present invention has special importance in the automotive sector, in which space problems are sometimes of special relevance, and where the precision of mechanical couplings provides quality to the product, this being decisive in the increase in the demand for commercialization in a market as diverse as that of the automobile. Thus, the invention is applicable to electrical transmission couplings for vehicles, in which the coupling is carried out by displacement, with interlocking by teeth and channels between the electric motor and the transmission shaft.
No obstante, esta disposición, también, es relevante y de posible aplicación para otros sectores industriales, como puede ser el de las máquinas de control numérico, la robótica, etc. However, this provision is also relevant and of possible application to other industrial sectors, such as numerical control machines, robotics, etc.
Descripción de las figuras Description of the figures
Para completar la descripción y proporcionar una mejor comprensión de la invención, se incluyen una serie de figuras donde se recogen distintas vistas de un ejemplo de realización práctica de la invención. To complete the description and provide a better understanding of the invention, a series of figures are included where different views of an example of a practical embodiment of the invention are collected.
Las figuras 1 y 2 representan sendas perspectivas de una realización de la invención donde se muestra la disposición de la carcasa de sensor de posición fijada a la carcasa del elemento desplazadle. Figures 1 and 2 represent respective perspectives of an embodiment of the invention where the arrangement of the position sensor casing fixed to the casing of the displaceable element is shown.
La figura 3 detalla una perspectiva de la realización mostrada en las figuras 1 y 2 en la que se realiza un corte en la carcasa del elemento desplazadle. Figure 3 details a perspective view of the embodiment shown in figures 1 and 2 in which a cut is made in the casing of the displaceable element.
En la figura 4 se muestra un despiece en perspectiva explosionada del conjunto del sensor y la carcasa de sensor de posición. Figure 4 shows an exploded perspective view of the sensor assembly and the position sensor housing.
Descripción detallada de la invención Detailed description of the invention
En las figuras se muestra una realización del sistema de fijación de un sensor de posición (1), para detectar la posición del elemento desplazadle (5) de acuerdo con la invención. El sensor (1.4) es inductivo (tipo resolver), siendo implementado en una placa de circuito impreso (PCB) relativamente delgada, ofreciendo una alta precisión en la medida de posición. The figures show an embodiment of the fixing system of a position sensor (1), to detect the position of the displaceable element (5) according to the invention. The sensor (1.4) is inductive (resolver type), being implemented on a relatively thin printed circuit board (PCB), offering high precision in position measurement.
En particular, el sensor (1.4) es capaz de proporcionar una medida de posición de desplazamiento para el acoplamiento de transmisión eléctrica de vehículos híbridos, si bien su uso puede extenderse a otras aplicaciones en diferentes sectores de la industria. In particular, the sensor (1.4) is capable of providing a displacement position measurement for the electric transmission coupling of hybrid vehicles, although its use can be extended to other applications in different sectors of the industry.
El sistema de fijación de un sensor de posición (1) está constituido, básicamente, por una carcasa de sensor de posición (1.1) donde se alojará el sensor (1.4) y demás elementos necesarios, la cual se colocará, en la dirección del desplazamiento (D), fijada a la carcasa del elemento desplazadle (2). The fixing system of a position sensor (1) is basically constituted by a position sensor casing (1.1) where the sensor (1.4) and other necessary elements will be housed, which will be placed, in the direction of movement (D), fixed to the casing of the displaceable element (2).
Como puede observarse en las figuras, las carcasas (1.1), (2) están configuradas para que la carcasa de sensor de posición (1.1) sea fijada a la carcasa de elemento desplazadle (2) insertando o introduciendo la carcasa de sensor (1.1) en la carcasa de elemento desplazadle (2) trasladando la misma paralelamente a la dirección de desplazamiento (D). As can be seen in the figures, the casings (1.1), (2) are configured so that the position sensor casing (1.1) is fixed to the displaceable element casing (2) by inserting or inserting the sensor casing (1.1) in the casing of the displaceable element (2) translating it parallel to the direction of displacement (D).
La carcasa de sensor de posición (1.1) se extiende lateralmente alrededor de la carcasa del elemento desplazadle (2) y entre dos caras opuestas (2.1) perpendiculares a la dirección de desplazamiento (D). La fijación entre ambas carcasas (1.1), (2) se puede realizar por diferentes medios, siendo uno de estos la fijación mecánica mediante tornillos. A tal fin, como se puede observar en la figura 4, se disponen en la carcasa de sensor (1.1) sendos agujeros donde se introducen unos casquillos metálicos (1.9) a modo de refuerzo. The position sensor casing (1.1) extends laterally around the displaceable element casing (2) and between two opposite faces (2.1) perpendicular to the direction of displacement (D). The fixation between both casings (1.1), (2) can be carried out by different means, one of these being mechanical fixation by means of screws. To this end, as can be seen in figure 4, two holes are arranged in the sensor housing (1.1) where metal bushings (1.9) are inserted as reinforcement.
La carcasa de sensor de posición (1.1) se remata con una junta de estanqueidad (1.8) que proporciona estanqueidad a la carcasa de elemento desplazadle (2) en la zona de conexión entre ambas carcasas (1.1.), (2) para evitar salpicaduras de aceite de lubricación de las distintas partes mecánicas alojadas en su interior. The position sensor housing (1.1) is finished off with a sealing gasket (1.8) that provides sealing to the displaceable element housing (2) in the connection area between both housings (1.1.), (2) to prevent splashes of lubricating oil for the different mechanical parts housed inside.
En el interior de la carcasa de sensor de posición (1.1) se alojan los siguientes elementos:The following elements are housed inside the position sensor housing (1.1):
- pines de conexión (1.6) - connection pins (1.6)
- Elemento de soporte de pines de conexión (1 ,5) - Connection pin support element (1,5)
- placa de circuito impreso (PCB) (1 .3) - printed circuit board (PCB) (1 .3)
- sensor (1.4) que se integra en la placa de circuito impreso (PCB) (1 .3). Asimismo, se ha previsto que la carcasa de sensor de posición (1.1) incorpore una tapa (1.2) que cierra la carcasa de sensor de posición (1.1) y facilita la disposición y fijación de los elementos anteriores. - sensor (1.4) that is integrated into the printed circuit board (PCB) (1.3). Likewise, provision has been made for the position sensor casing (1.1) to incorporate a cover (1.2) that closes the position sensor casing (1.1) and facilitates the arrangement and fixing of the above elements.
Los pines de conexión (1.6), se unen a una placa de circuito impreso (PCB) (1 .3), encajándose en unos orificios dispuestos a tal fin (1.3.1), situados en la placa de circuito impreso (PCB)The connection pins (1.6) are attached to a printed circuit board (PCB) (1.3), fitting into holes provided for this purpose (1.3.1), located on the printed circuit board (PCB)
(1.3). Dichos pines de conexión (1.6) son sujetados por el elemento de soporte (1.5), el cual, a su vez, encaja en unos orificios (1.3.2) practicados en la placa de circuito impreso (PCB)(1.3). Said connection pins (1.6) are held by the support element (1.5), which, in turn, fits into holes (1.3.2) made in the printed circuit board (PCB)
(1.3) con dicha finalidad. El elemento de soporte (1.5) encaja en la tapa (1.2). (1.3) for said purpose. The support element (1.5) fits into the cover (1.2).
Dichos pines de conexión (1.6) y su elemento de cubrición configuran el conector de cableado de sensor (1.7). Said connection pins (1.6) and its covering element configure the sensor wiring connector (1.7).
En una de las caras (2.1) de la carcasa de elemento desplazadle (2) se fija un actuador (3), que puede ser eléctrico rotativo, o de cualquier otro tipo, para desplazar el elemento de desplazamiento (5). En el elemento desplazadle (2) se fija el elemento de diana (4), que, en este caso, es metálico, no necesariamente ferromagnético. On one of the faces (2.1) of the displaceable element casing (2) an actuator (3) is fixed, which can be rotary electric, or of any other type, to displace the displacement element (5). The target element (4) is attached to the displaceable element (2), which, in this case, is metallic, not necessarily ferromagnetic.
En la realización descrita según la invención, el sistema de fijación (1) comprende un conector de cableado de sensor (1.7) que, con la carcasa de sensor de posición (1.1) fijada a la carcasa de elemento desplazadle (2), se dispone de forma que cableado de sensor se conecta al conector de cableado de sensor (1.7) paralelamente a la dirección de desplazamiento (D). De este modo se proporciona una mayor compacidad al sistema, al no sobresalir el conector del conjunto. In the embodiment described according to the invention, the fixing system (1) comprises a sensor wiring connector (1.7) which, with the position sensor housing (1.1) fixed to the displaceable element housing (2), is arranged so that sensor wiring connects to sensor wiring connector (1.7) parallel to the direction of travel (D). This provides greater compactness to the system, as the connector does not protrude from the assembly.
Además, el conector de cableado de sensor (1.7) se dispone de forma que el cableado de sensor se conecta al conector de cableado de sensor (1.7) en dirección opuesta a la dirección de inserción de la carcasa del sensor (1.1), es decirla conexión del conector de cableado de sensor (1.7) estando orientada hacia la cara opuesta (2.1) en la que se fija la carcasa de sensor de posición (1.1) (véase fig. 1). Esto permite la disposición de los cables de conexión conectados al conector de cableado de sensor (1 .7) sobre la carcasa de sensor de posición (1.1). Especialmente cuando en la cara opuesta (2.1) se fija el actuador (3), permitiéndose así el agrupamiento compacto de los cables del conector y del actuador. Y ello mejora, adicionalmente, la compacidad. En cuanto a la ejecución práctica del sensor (1), como se deriva de lo hasta aquí expuesto, se basa en una placa de circuito impreso (1.3), donde se integra el sensor (1.4), efectuándose un procesado de señales al detectar el elemento de diana (4), se encuentra fijada al elemento desplazadle (5), elemento que es móvil y cuya posición se quiere detectar. Furthermore, the sensor wiring connector (1.7) is arranged so that the sensor wiring connects to the sensor wiring connector (1.7) in the opposite direction to the insertion direction of the sensor housing (1.1), i.e. connection of the sensor wiring connector (1.7) being oriented towards the opposite face (2.1) on which the position sensor housing (1.1) is fixed (see fig. 1). This allows the arrangement of the connection cables connected to the sensor wiring connector (1 .7) on the position sensor housing (1.1). Especially when the actuator (3) is fixed on the opposite face (2.1), thus allowing the compact grouping of the connector and actuator cables. And this additionally improves compactness. Regarding the practical execution of the sensor (1), as it can be derived from what has been exposed here, it is based on a printed circuit board (1.3), where the sensor (1.4) is integrated, carrying out a signal processing when detecting the target element (4), is fixed to the displaceable element (5), an element that is mobile and whose position is to be detected.

Claims

- 8 -REIVINDICACIONES - 8 - CLAIMS
1.- Sistema de fijación de un sensor de posición (1) para medir la posición de un elemento desplazadle (5) según una dirección de desplazamiento (D), que comprende: un sensor de posición (1.4), una carcasa de sensor de posición (1.1) que aloja el sensor de posición (1.4), una carcasa de elemento desplazadle (2) configurada para alojar el elemento desplazadle (5), caracterizado por que la carcasa de sensor de posición (1 .1) se fija a la carcasa de elemento desplazadle (2) por inserción de la carcasa de sensor de posición (1.1) en la carcasa de elemento desplazadle (2) en la dirección de desplazamiento (D). 1.- System for fixing a position sensor (1) to measure the position of a displaceable element (5) according to a direction of displacement (D), comprising: a position sensor (1.4), a sensor housing for position (1.1) that houses the position sensor (1.4), a displaceable element housing (2) configured to house the displaceable element (5), characterized in that the position sensor housing (1.1) is fixed to the displaceable element housing (2) by inserting the position sensor housing (1.1) into the displaceable element housing (2) in the direction of displacement (D).
2.- Sistema de fijación de un sensor de posición (1) según la reivindicación 1 , caracterizado por que el sensor de posición (1 .4) se extiende según un plano que, con la carcasa de sensor de posición (1.1) fijada a la carcasa de elemento desplazadle (2), se dispone paralelo a la dirección de desplazamiento (D). 2. System for fixing a position sensor (1) according to claim 1, characterized in that the position sensor (1.4) extends according to a plane that, with the position sensor housing (1.1) fixed to the displaceable element casing (2) is arranged parallel to the direction of displacement (D).
3. Sistema de fijación de un sensor de posición (1) según una de las reivindicaciones anteriores, caracterizado por que el sensor de posición (1.4) es de tipo inductivo. System for fixing a position sensor (1) according to one of the preceding claims, characterized in that the position sensor (1.4) is of the inductive type.
4.- Sistema de fijación de un sensor de desplazamiento (1) según una cualquiera de las reivindicaciones anteriores, caracterizado por que el sensor de posición (1.4) se integra en una placa de circuito impreso (1.3). 4. System for fixing a displacement sensor (1) according to any one of the preceding claims, characterized in that the position sensor (1.4) is integrated into a printed circuit board (1.3).
5.- Sistema de fijación de un sensor de desplazamiento (1) según una cualquiera de las reivindicaciones anteriores, caracterizado por que comprende un conector de cableado de sensor (1.7) que, con la carcasa de sensor de posición (1.1) fijada a la carcasa de elemento desplazadle (2), se dispone de forma que cableado de sensor se conecta al conector de cableado de sensor (1.7) paralelamente a la dirección de desplazamiento (D). 5. System for fixing a displacement sensor (1) according to any one of the preceding claims, characterized in that it comprises a sensor wiring connector (1.7) that, with the position sensor housing (1.1) fixed to the displaceable element housing (2), it is arranged so that the sensor wiring is connected to the sensor wiring connector (1.7) parallel to the direction of displacement (D).
6.- Sistema de fijación de un sensor de desplazamiento (1) según la reivindicación 5, caracterizado por que el conector de cableado de sensor (1.7), con la carcasa de sensor de posición (1.1) fijada a la carcasa de elemento desplazadle (2), se dispone de forma que el cableado de sensor se conecta al conector de cableado de sensor (1.7) en dirección opuesta a la dirección de inserción de la carcasa del sensor (1.1). 6. System for fixing a displacement sensor (1) according to claim 5, characterized in that the sensor wiring connector (1.7), with the position sensor housing (1.1) fixed to the displacement element housing ( 2), it is arranged so that the sensor wiring is connected to the sensor wiring connector (1.7) in the direction opposite to the insertion direction of the sensor housing (1.1).
PCT/ES2021/070469 2020-08-26 2021-06-25 System for the attachment of a position sensor WO2022043593A1 (en)

Applications Claiming Priority (2)

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ESU202031881 2020-08-26
ES202031881U ES1257574Y (en) 2020-08-26 2020-08-26 FIXING SYSTEM OF A POSITION SENSOR

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071725A (en) * 1976-02-27 1978-01-31 Ibec Industries, Inc. Proximity switch for fluid cylinders
US4594487A (en) * 1984-12-07 1986-06-10 Galland Henning Nopak, Inc. Mounting means for proximity sensing device
US4898079A (en) * 1987-09-16 1990-02-06 Celduc S.A. Electric or electronic position sensor device
US20140266167A1 (en) * 2011-09-12 2014-09-18 Smc Corporation Position sensor attachment band

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071725A (en) * 1976-02-27 1978-01-31 Ibec Industries, Inc. Proximity switch for fluid cylinders
US4594487A (en) * 1984-12-07 1986-06-10 Galland Henning Nopak, Inc. Mounting means for proximity sensing device
US4898079A (en) * 1987-09-16 1990-02-06 Celduc S.A. Electric or electronic position sensor device
US20140266167A1 (en) * 2011-09-12 2014-09-18 Smc Corporation Position sensor attachment band

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