ES2364032T3 - DEVICE FOR MASS CONNECTION OF ELECTRICAL COMPONENTS OR APPLIANCES ON FIXING PARTS. - Google Patents
DEVICE FOR MASS CONNECTION OF ELECTRICAL COMPONENTS OR APPLIANCES ON FIXING PARTS. Download PDFInfo
- Publication number
- ES2364032T3 ES2364032T3 ES00403665T ES00403665T ES2364032T3 ES 2364032 T3 ES2364032 T3 ES 2364032T3 ES 00403665 T ES00403665 T ES 00403665T ES 00403665 T ES00403665 T ES 00403665T ES 2364032 T3 ES2364032 T3 ES 2364032T3
- Authority
- ES
- Spain
- Prior art keywords
- screw
- expandable
- nut
- tightening
- insulating coating
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
- H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/16—Fastening of connecting parts to base or case; Insulating connecting parts from base or case
- H01R9/18—Fastening by means of screw or nut
Abstract
Dispositivo para la conexión a masa de componentes o aparatos eléctricos (1) en elementos de fijación (2) que estén dotados de un revestimiento eléctricamente aislante, tal como en particular chapas esmaltadas, con una tuerca expansible (3) y un tornillo (4) que se puede fijar mediante expansión en un orificio (12) del elemento de fijación, al apretar el tornillo (4), así como medios (16,17) para atravesar el revestimiento aislante al apretar el tornillo, extendiéndose la tuerca expansible (3) en parte a través del citado orificio (12), apoyándose (7) sobre una cara (8) del elemento de fijación (2) y presentando por el otro lado (10) del elemento de fijación (2) por lo menos una aleta (14) que se extiende oblicuamente respecto al eje, que al apretar el tornillo (14) se esparranca y presenta los medios citados (16,17) que al esparrancarse atraviesan el revestimiento aislante, caracterizado porque la aleta expansible (14) presenta en su dirección longitudinal un perfil en forma de U, que con su zona base (15) asienta sobre la superficie periférica del tornillo (4) y que por su extremo libre presenta los citados medios (16,17) para atravesar el revestimiento aislante, y porque el tornillo (4) se va reduciendo de diámetro desde su cabeza hacia su extremo libre (19).Device for the mass connection of electrical components or devices (1) in fasteners (2) that are provided with an electrically insulating coating, such as in particular enameled sheets, with an expandable nut (3) and a screw (4) which can be fixed by expansion in a hole (12) of the fixing element, by tightening the screw (4), as well as means (16.17) to pass through the insulating coating when tightening the screw, extending the expandable nut (3) partly through said hole (12), resting (7) on one side (8) of the fixing element (2) and presenting on the other side (10) of the fixing element (2) at least one fin ( 14) that extends obliquely with respect to the axis, which when tightening the screw (14) spreads out and presents the mentioned means (16,17) that when spreading cross the insulating coating, characterized in that the expandable fin (14) presents in its direction longitudinal a profile in f U shape, which with its base area (15) sits on the peripheral surface of the screw (4) and which at its free end presents the aforementioned means (16.17) to pass through the insulating coating, and because the screw (4) it is reduced in diameter from its head towards its free end (19).
Description
La invención se refiere a un dispositivo para la conexión de componentes o aparatos eléctricos sobre piezas de fijación dotadas de un revestimiento eléctricamente aislante, tales como chapas esmaltadas. The invention relates to a device for connecting electrical components or devices on fixing parts provided with an electrically insulating coating, such as enameled sheets.
Los dispositivos conocidos hasta la fecha que se emplean para esta clase de conexiones a masa llevan tuercas para remachar con rosca métrica. Estos dispositivos adolecen del inconveniente de que la conexión a masa no es duradera. The devices known to date that are used for this kind of ground connections have rivet nuts with metric thread. These devices suffer from the disadvantage that the ground connection is not durable.
El documento US-A-4802863 da a conocer un dispositivo conforme al preámbulo de la reivindicación 1. US-A-4802863 discloses a device according to the preamble of claim 1.
La invención tiene como objetivo crear un dispositivo de la clase antes citada en el que la conexión a masa persista sin perder calidad. The invention aims to create a device of the aforementioned class in which the ground connection persists without losing quality.
El dispositivo según la reivindicación 1 resuelve los problemas planteados. The device according to claim 1 solves the problems raised.
Conforme a una característica de la invención, la tuerca expansible atraviesa parcialmente el citado orificio y presenta por el lado que ha sido atravesado por lo menos una aleta orientada oblicuamente respecto al eje, que se esparranca al apretar la tuerca y que presenta medios que al esparrancarse atraviesan el revestimiento. According to a feature of the invention, the expandable nut partially crosses the said hole and has at least one side that has been obliquely oriented towards the axis, which spreads when the nut is tightened and which has means that when spreading They cross the lining.
De acuerdo con otra característica de la invención, el tornillo va reduciéndose de diámetro desde su cabeza hacia su extremo libre, la aleta expansible presenta en su dirección longitudinal un perfil en forma de U, asienta con su zona base contra la superficie exterior del tornillo y presenta en su extremo libre los medios citados para atravesar el revestimiento. According to another feature of the invention, the screw is reduced in diameter from its head towards its free end, the expandable fin has a U-shaped profile in its longitudinal direction, sits with its base area against the outer surface of the screw and it presents at its free end the means mentioned to pass through the coating.
De acuerdo con una característica opcional, los medios destinados a atravesar el revestimiento están formados por dientes realizados en el extremo libre de la aleta. According to an optional feature, the means intended to pass through the lining are formed by teeth made at the free end of the fin.
De acuerdo con otra característica opcional, la zona de la tuerca que atraviesa el orificio presenta una sección que tiene al menos parcialmente un perímetro rectilíneo, partiendo las aletas expansibles de esta zona periférica rectilínea, estando formadas por una pieza esencialmente lisa, plana, doblada sobre sí misma en forma de U. According to another optional feature, the area of the nut that crosses the hole has a section that has at least partially a rectilinear perimeter, starting with the expandable fins of this rectilinear peripheral zone, being formed by an essentially smooth, flat piece, bent over U-shaped itself.
De acuerdo con una característica opcional, la citada sección de la tuerca que atraviesa el orificio es rectangular, y la tuerca presenta dos aletas expansibles enfrentadas entre sí. According to an optional feature, said section of the nut that crosses the hole is rectangular, and the nut has two expandable fins facing each other.
La invención se describe a continuación con mayor detalle haciendo referencia a los dibujos adjuntos. The invention is described in more detail below with reference to the accompanying drawings.
La figura 1 es una vista en perspectiva de un dispositivo conforme a la invención destinado a la fijación de un aparato eléctrico en una pieza de fijación, estableciendo al mismo tiempo la conexión a masa. Figure 1 is a perspective view of a device according to the invention intended for fixing an electrical apparatus in a fixing part, while establishing the ground connection.
La figura 2 es una vista en perspectiva de una tuerca expansible conforme a la invención, del dispositivo según la figura 1. Figure 2 is a perspective view of an expandable nut according to the invention, of the device according to Figure 1.
La figura 3 es una vista lateral de la tuerca expansible de la figura 2, en la dirección de la flecha III. Figure 3 is a side view of the expandable nut of Figure 2, in the direction of arrow III.
La figura 4 es una vista de la tuerca expansible de la figura 2, en la dirección de la flecha IV. Figure 4 is a view of the expandable nut of Figure 2, in the direction of arrow IV.
La figura 6 es una vista de la tuerca expansible en la dirección de la flecha V de la figura 2. Figure 6 is a view of the expandable nut in the direction of arrow V of Figure 2.
En las figuras, la cifra de referencia 1 designa por ejemplo un aparato eléctrico que se trata de poner a tierra, 2 una chapa esmaltada sobre la cual se ha de fijar el aparato para su puesta a tierra, 3 una tuerca expansible según la invención para realizar la fijación del aparato 1 sobre la chapa, con puesta a tierra simultánea, y 4 el tornillo correspondiente a la tuerca 3. In the figures, the reference figure 1 designates, for example, an electrical apparatus that is intended to be grounded, 2 an enameled plate on which the apparatus for grounding is to be fixed, 3 an expandable nut according to the invention for make the fixing of the device 1 on the sheet, with simultaneous grounding, and 4 the screw corresponding to the nut 3.
El aparato 1 está dotado de una lengüeta 6 de puesta a tierra que se puede unir eléctricamente con la tuerca expansible 3. The apparatus 1 is provided with a grounding tab 6 that can be electrically connected with the expandable nut 3.
En la forma de realización de una tuerca expansible 3 según la invención, representada en las figuras exclusivamente a título de ejemplo, esta presenta esencialmente 3 partes, una primera parte 7 mediante la cual la tuerca descansa sobre el lado 8 de la chapa 2, que soporta el aparato 1, una parte 9 que atraviesa la chapa de fijación 9 y que se encuentra por la otra cara exterior 10 de la chapa, y una tercera parte intermedia 11 que se encuentra en el orificio 12 de la chapa a través del cual se pasa la tuerca. In the embodiment of an expandable nut 3 according to the invention, represented in the figures exclusively by way of example, it essentially has 3 parts, a first part 7 whereby the nut rests on the side 8 of the sheet 2, which it supports the apparatus 1, a part 9 that crosses the fixing plate 9 and that is located on the other outer face 10 of the sheet, and a third intermediate part 11 that is in the hole 12 of the sheet through which pass the nut.
La parte intermedia 11 de la tuerca expansible 3 en la que está tallado el orificio roscado 13 para el tornillo de apriete 4 presenta una sección esencialmente rectangular, y la parte 9 que atraviesa el orificio está formada por dos aletas expansibles 14 que se extienden desde dos bordes exteriores opuestos de la parte intermedia 11, oblicuamente desde el eje de la tuerca. Cada aleta 14 está formada por una lengüeta lisa, plana, de forma rectangular, que en su dirección longitudinal presenta un perfil en forma de U. La base 15 de esta lengüeta en forma de U está destinada a asentar en la superficie exterior del tornillo de fijación 4. El extremo libre 16 de cada lengüeta está orientado hacia la cara inferior 10 de la chapa 2 y presenta unos dientes 17 destinados a atravesar el revestimiento y establecer la conexión a tierra. The intermediate part 11 of the expandable nut 3 in which the threaded hole 13 for the clamping screw 4 is carved has an essentially rectangular section, and the part 9 that crosses the hole is formed by two expandable fins 14 extending from two opposite outer edges of the intermediate part 11, obliquely from the axis of the nut. Each flap 14 is formed by a flat, flat, rectangular-shaped tongue, which in its longitudinal direction has a U-shaped profile. The base 15 of this U-shaped tongue is intended to sit on the outer surface of the screw of fixing 4. The free end 16 of each tongue is oriented towards the lower face 10 of the sheet 2 and has teeth 17 intended to pass through the lining and establish the ground connection.
El tornillo de fijación 4 se va reduciendo de diámetro desde su cabeza 18 hacia su extremo libre 19. The fixing screw 4 is reduced in diameter from its head 18 towards its free end 19.
La primera parte de la tuerca 7 que descansa sobre la cara superior de la chapa 8 presenta una boca de alojamiento 21 dentro de la cual se extiende la lengüeta de puesta a tierra 6, y en la cual está firmemente sujeta a presión por el tornillo 4 para establecer un contacto eléctrico. The first part of the nut 7 resting on the upper face of the sheet 8 has a housing mouth 21 within which the grounding tongue 6 extends, and in which it is firmly pressed by the screw 4 to establish an electrical contact.
Tal como muestran las figuras, al fijar el aparato eléctrico 4 en la chapa 2 se atraviesa la tuerca expansible 3 parcialmente a través de su orificio de alojamiento 12 en la chapa 2, se introduce la lengüeta de puesta a tierra 6 en la boca de alojamiento 21 de la tuerca 3 y se introduce el tornillo 4 en la tuerca hasta que la superficie periférica de la caña del tornillo llegue a asentar en la base 15 de las aletas expansibles 14. Al apretar el tornillo y avanzar este, las aletas son empujadas hacia el exterior por la superficie exterior del tornillo, cuyo diámetro va aumentando. Este movimiento basculante en la dirección de la flecha F provoca la aproximación de los extremos libres 16 de los brazos a la cara inferior 10 de la chapa, y al continuar esparrancándose las aletas provoca que los dientes 17 atraviesen la capa de esmalte que recubre esta cara, con lo cual se crea un contacto a tierra excelente y duradero. As the figures show, when fixing the electrical apparatus 4 in the plate 2, the expandable nut 3 is partially passed through its housing hole 12 in the plate 2, the grounding tab 6 is inserted into the housing 21 of the nut 3 and the screw 4 is introduced into the nut until the peripheral surface of the screw shaft reaches the base 15 of the expandable fins 14. By tightening the screw and advancing this, the fins are pushed towards the outside by the outer surface of the screw, whose diameter is increasing. This tilting movement in the direction of the arrow F causes the free ends 16 of the arms to approach the lower face 10 of the sheet, and by continuing to spread the fins it causes the teeth 17 to pass through the enamel layer that covers this face. , which creates an excellent and lasting ground contact.
En el ejemplo de realización representado, la tuerca expansible se fabrica mediante el conformado de una pieza metálica originalmente plana. La parte superior de la tuerca 7 se realiza como pieza en forma de U mediante el replegado sobre sí misma, con unos dientes agudos laterales 23, doblados adicionalmente, que también penetran en la chapa al apretar el tornillo. Las aletas expansibles 14 en forma de U se forman mediante el curvado hacia abajo de unas lengüetas laterales, formándose la parte intermedia 11 de las zonas de aletas correspondientes a las líneas de curvatura 8. In the exemplary embodiment shown, the expandable nut is manufactured by forming an originally flat metal part. The upper part of the nut 7 is made as a U-shaped piece by folding on itself, with sharp side teeth 23, additionally bent, which also penetrate the sheet by tightening the screw. The U-shaped expandable fins 14 are formed by bending down side tabs, the intermediate part 11 forming of the fin areas corresponding to the curvature lines 8.
El dispositivo conforme a la invención permite realizar la fijación de aparatos eléctricos, tales como por ejemplo convertidores de impedancia, en chapas esmaltadas con un espesor de 0,7mm a 1mm. La fijación con destrucción parcial del revestimiento garantiza una conexión a masa (puesta a tierra) de alta frecuencia duradera después de apretar el tornillo. La invención permite realizar un premontaje de la tuerca expansible en transformadores de impedancia así como un premontaje, por ejemplo en el vehículo en el que se trata de realizar la puesta a tierra. La tuerca expansible se monta después del esmaltado. The device according to the invention makes it possible to fix electrical appliances, such as impedance converters, on enameled sheets with a thickness of 0.7mm to 1mm. Fixing with partial destruction of the lining ensures a high-frequency (grounded) ground connection lasting after tightening the screw. The invention allows a preassembly of the expandable nut in impedance transformers as well as a preassembly, for example in the vehicle in which the grounding is intended. The expandable nut is mounted after enamelling.
El dispositivo conforme a la invención aporta numerosas ventajas, por ejemplo permite efectuar un montaje simplificado mediante encaje a presión. La conexión a masa tiene lugar al apretar el tornillo. La invención permite efectuar un premontaje en los proveedores del sistema. The device according to the invention provides numerous advantages, for example it allows simplified assembly by means of snap fit. The ground connection takes place when the screw is tightened. The invention allows a preassembly to be carried out in the system suppliers.
Claims (8)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00403665A EP1217694B1 (en) | 2000-12-22 | 2000-12-22 | Device for ground connection of electrical components or apparatus to fixation parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2364032T3 true ES2364032T3 (en) | 2011-08-23 |
Family
ID=8174002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES00403665T Expired - Lifetime ES2364032T3 (en) | 2000-12-22 | 2000-12-22 | DEVICE FOR MASS CONNECTION OF ELECTRICAL COMPONENTS OR APPLIANCES ON FIXING PARTS. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1217694B1 (en) |
| DE (1) | DE50016088D1 (en) |
| ES (1) | ES2364032T3 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3486158A (en) * | 1967-09-29 | 1969-12-23 | Illinois Tool Works | Grounding clip |
| US3810069A (en) * | 1972-08-08 | 1974-05-07 | Hubbell Inc Harvey | Grounding clip for electrical fixtures |
| US4496791A (en) * | 1982-10-13 | 1985-01-29 | Allen-Bradley Company | Spring-biased connector for electrically bonding a device to a supporting wall |
| DE3714500C1 (en) * | 1987-04-30 | 1988-08-11 | Loh Kg Rittal Werk | Device for the electrically conductive connection of two components |
-
2000
- 2000-12-22 ES ES00403665T patent/ES2364032T3/en not_active Expired - Lifetime
- 2000-12-22 EP EP00403665A patent/EP1217694B1/en not_active Expired - Lifetime
- 2000-12-22 DE DE50016088T patent/DE50016088D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1217694B1 (en) | 2011-03-30 |
| DE50016088D1 (en) | 2011-05-12 |
| EP1217694A1 (en) | 2002-06-26 |
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