ES2237999A1 - Protection device for protecting junctions between conductor and terminal, has envelope made of molded thermoplastic material - Google Patents
Protection device for protecting junctions between conductor and terminal, has envelope made of molded thermoplastic materialInfo
- Publication number
- ES2237999A1 ES2237999A1 ES200400087A ES200400087A ES2237999A1 ES 2237999 A1 ES2237999 A1 ES 2237999A1 ES 200400087 A ES200400087 A ES 200400087A ES 200400087 A ES200400087 A ES 200400087A ES 2237999 A1 ES2237999 A1 ES 2237999A1
- Authority
- ES
- Spain
- Prior art keywords
- protection
- terminal
- terminals
- conductor
- junction
- 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.)
- Pending
Links
- 239000012815 thermoplastic material Substances 0.000 title claims abstract description 5
- 239000004020 conductor Substances 0.000 title claims description 24
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 238000002788 crimping Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 4
- NFLLKCVHYJRNRH-UHFFFAOYSA-N 8-chloro-1,3-dimethyl-7H-purine-2,6-dione 2-(diphenylmethyl)oxy-N,N-dimethylethanamine Chemical compound O=C1N(C)C(=O)N(C)C2=C1NC(Cl)=N2.C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 NFLLKCVHYJRNRH-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5213—Covers
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
Description
Protección para terminales.Terminal protection
La presente memoria descriptiva se refiere, como su título indica, a una protección para terminales, del tipo de las utilizadas en los terminales eléctricos para proteger y aislar la unión entre el conductor eléctrico y el propio cuerpo del terminal, caracterizada porque utiliza una envolvente realizada mediante material termoplástico sobremoldeado alrededor de la unión en un molde, complementando a un sellado interno por soldadura de estaño.The present specification refers to, as its title indicates, to a protection for terminals, of the type of those used in electrical terminals to protect and insulate the union between the electric conductor and the body of the terminal, characterized in that it uses an envelope made by thermoplastic material overmoulded around the joint in a mold, complementing an internal sealing by welding of tin.
El uso de terminales eléctricos para realizar la conexión electromecánica entre un conductor eléctrico y un punto de suministro o consumo está ampliamente extendido y difundido en la mayor parte de los equipamientos industriales, electrodomésticos, automóviles, maquinaria, etc..., pudiendo encontrar terminales de muy variados tipos, tales como anilla cerrada, anilla abierta, horquilla, faston, cilíndrico, etc... Todos ellos consisten en una pieza metálica dotada de un medio de unión mecánica con el punto de suministro o consumo eléctrico, y de otro punto de unión, normalmente por remachado a presión, engastado o soldadura, con el conductor eléctrico, realizando la función de intermediario de conexionado.The use of electrical terminals to perform the electromechanical connection between an electrical conductor and a point of supply or consumption is widely spread and disseminated in the most of the industrial equipment, appliances, cars, machinery, etc ..., being able to find terminals very varied types, such as closed ring, open ring, fork, faston, cylindrical, etc ... They all consist of a metal part equipped with a means of mechanical connection with the point of power supply or consumption, and other junction point, normally by pressure riveting, crimping or welding, with the electric conductor, performing the function of intermediary of connected.
Muchos de estos terminales conocidos en la actualidad suelen disponer de un aislamiento plástico, bien incorporado o bien como una pieza auxiliar superpuesta, para proteger el punto de unión entre el conductor eléctrico y el material del terminal. Presentan el inconveniente de que la protección que presentan es muy limitada, realizando apenas una función de aislamiento eléctrico, pero sin proporcionar ningún tipo de estanqueidad a la unión. Para las aplicaciones de interior suele ser suficiente, pero para aplicaciones más exigentes, tales como automoción, vehículos industriales o militares, maquinaria agrícola, etc... que por su función deben de estar frecuentemente al exterior, expuestas a los agentes atmosféricos, este tipo de soluciones se muestra claramente insuficiente y problemática. Es un problema común en este tipo de aplicaciones el hecho de que la humedad, condensación o salpicaduras ocasionales de agua puedan alcanzar los terminales eléctricos, penetrando en el conductor eléctrico por capilaridad entre el cuerpo del terminal, el núcleo del conductor eléctrico (normalmente multifilar) y la envolvente aislante de dicho conductor eléctrico o cable. Esto origina una corrosión en el conductor eléctrico que propicia fallos en su conducción eléctrica o incluso su destrucción en un plazo de tiempo no demasiado largo, con el consiguiente riesgo de averías o accidentes, que es especialmente preocupante en el caso de la automoción.Many of these terminals known in the Nowadays they usually have plastic insulation, well incorporated or as a superimposed auxiliary part, for protect the junction point between the electric conductor and the terminal material. They have the disadvantage that the protection they present is very limited, making just one electrical insulation function, but without providing any type of tightness to the union. For indoor applications usually be sufficient, but for more demanding applications, such as automotive, industrial or military vehicles, machinery agricultural, etc ... that by their function must be frequently at outside, exposed to atmospheric agents, this type of Solutions are clearly insufficient and problematic. Is a common problem in this type of applications the fact that the moisture, condensation or occasional splashing of water may reach the electrical terminals, penetrating the conductor electric by capillarity between the body of the terminal, the core of the electrical conductor (usually multifilar) and the envelope insulator of said electrical conductor or cable. This causes a corrosion in the electrical conductor that causes failures in its electric conduction or even its destruction within a period of time not too long, with the consequent risk of breakdowns or accidents, which is especially worrying in the case of the Automotive
También es bastante frecuente que, como consecuencia de las altas temperaturas que alcanzan algunas partes de los motores, y a los frecuentes ciclos de calentamiento-enfriamiento que sufren, las partes plásticas de protección sufran una contracción o deterioro que acrecenta las ranuras o fisuras preexistentes en las uniones, acelerando el efecto anteriormente descrito.It is also quite frequent that, as consequence of the high temperatures that reach some parts of the engines, and the frequent cycles of heating-cooling suffering, the parts protection plastics suffer a contraction or deterioration that increases the existing grooves or fissures in the joints, accelerating the effect described above.
Ello ha obligado a los fabricantes a comenzar a exigir que estas uniones estén de algún modo selladas para impedir la entrada de agua y tengan una elevada resistencia a los choques térmicos.This has forced manufacturers to start demand that these unions be somehow sealed to prevent the entrance of water and have a high resistance to shocks thermal.
Para tratar de solventar estas necesidades se conocen una algunos sistemas, como por ejemplo las fundas termoretractiles, que al contraerse por calor forman una ajustada protección de la zona de engaste, pero presentan una serie de inconvenientes, principalmente basados en el alto coste económico tanto de la propia funda, como del tiempo de colocación y de la energía necesaria para su calentamiento. Además su colocación es un proceso estrictamente manual que requiere un difícil y preciso posicionamiento, sin llegar a dar una estricta protección, ya que su tasa de fallos frente apruebas de impermeabilidad es muy alta, produciéndose frecuentemente la corrosión del conductor de cobre. Este tipo de soluciones presentan el inconveniente añadido de los restos de resina que suelen quedar en la zona de atornillado del terminal.To try to solve these needs, know some systems, such as covers heat shrinkable, which when contracted by heat form a tight protection of the crimping zone, but present a series of inconveniences, mainly based on the high economic cost both of the case itself, as of the placement time and of the energy needed for heating. In addition its placement is a strictly manual process that requires a difficult and precise positioning, without giving strict protection, since its failure rate against impermeability approvals is very high, frequently producing corrosion of the copper conductor. These types of solutions have the added disadvantage of resin remains that are usually left in the bolted area of the terminal.
También se ha intentado sellar las uniones de los engastes por rellenado de soldadura por estaño, mediante inmersión en cuba de estaño, este sistema suele dar unos resultados aceptables de estanqueidad, pero su alto coste debido al elevado consumo de estaño lo aparta de su uso industrial. También se ha intentado el uso de soldadura manual por estaño, para reducir la cantidad de material aportado, pero el alto coste de la mano de obra necesaria lo hace prohibitivo.An attempt has also been made to seal the joints of the crimping by tin solder filling, by immersion In Cuba, this system usually gives results acceptable sealing, but its high cost due to the high Tin consumption separates it from its industrial use. It has also tried the use of manual soldering by tin, to reduce the amount of material contributed, but the high cost of the hand of necessary work makes it prohibitive.
Asimismo se ha probado el uso de fundas sobremoldeadas de caucho o de diversos tipos de termoplásticos convencionales, pero la alta temperatura necesaria para el moldeo daña el aislante plástico del conductor, perjudicando su estanqueidad e invalidando esta solución.The use of covers has also been tested overmoulded of rubber or various types of thermoplastics conventional, but the high temperature necessary for molding damages the plastic insulator of the conductor, damaging its tightness and invalidating this solution.
Para solventar la problemática existente en la actualidad en cuanto al problema de la estanqueidad de la unión entre el conductor eléctrico y el terminal se ha ideado la protección para terminales objeto de la presente invención, la cual consta de, por un lado, el uso de un engaste estañado, con soldadura automatizada para reducir el consumo de estaño y producir el sellado de la unión eléctrica; a la par que por otro lado todo el conjunto del engaste se rodea de una envolvente realizada por sobremoldeado, en un molde apropiado, de un termoplástico a temperatura preferentemente menor o igual a 180º, para, de esta forma, no dañar la envolvente plástica del conductor eléctrico, garantizando la perfecta estanqueidad de la unión.To solve the problem in the news regarding the problem of the tightness of the union between the electric conductor and the terminal the protection for terminals object of the present invention, which It consists of, on the one hand, the use of a tinned, welded crimp automated to reduce tin consumption and produce the sealing of the electrical connection; while on the other hand all the Crimp assembly is surrounded by an envelope made by overmoulded, in an appropriate mold, from a thermoplastic to temperature preferably less than or equal to 180 °, for, of this shape, not damage the plastic envelope of the electric conductor, guaranteeing the perfect tightness of the union.
Esta protección para terminales que se presenta aporta múltiples ventajas sobre los sistemas disponibles en la actualidad siendo la más importante que garantiza completamente la total estanqueidad de la unión entre el conductor eléctrico y el terminal, cumpliendo con las más estrictas normativas y exigencias de calidad de los fabricantes y eliminando la posibilidad de corrosión del conductor eléctrico frente a elementos atmosféricos de una manera segura, fiable y económica.This terminal protection presented provides multiple advantages over the systems available in the currently being the most important that fully guarantees the total tightness of the junction between the electric conductor and the terminal, complying with the strictest regulations and requirements quality of manufacturers and eliminating the possibility of corrosion of the electrical conductor against atmospheric elements in a safe, reliable and economical way.
Asimismo otra ventaja añadida es su alta resistencia a los cambios de temperatura y choques térmicos, que propician su larga duración sin afectar a su estanqueidad.Also another added advantage is its high resistance to temperature changes and thermal shocks, which They promote its long duration without affecting its tightness.
Otra importante ventaja que se consigue es que el proceso se puede automatizar fácilmente para poder realizar su industrialización de una manera económicamente rentable.Another important advantage that is achieved is that the process can be easily automated to perform your industrialization in an economically profitable way.
Otra ventaja subsiguiente de la presente invención es que al reducir la utilización de estaño y evitar la utilización de termoplásticos convencionales de alta temperatura se reduce de una manera importante los elementos contaminantes utilizados.Another subsequent advantage of this invention is that by reducing the use of tin and avoiding the use of conventional high temperature thermoplastics is significantly reduces pollutants used
También debemos destacar que, como consecuencia de la utilización de esta invención, la duración de los conductores eléctricos de vehículos y maquinaria en general va a aumentar su vida útil, reduciendo el número de averías y mejorando por consiguiente su seguridad de utilización.We must also emphasize that, as a consequence of the use of this invention, the duration of the conductors electric vehicles and machinery in general will increase your shelf life, reducing the number of faults and improving by consequently its safety of use.
Para comprender mejor el objeto de la presente invención, en los planos anexos se han representado una realización práctica preferencial de una protección para terminales.To better understand the purpose of this invention, an embodiment has been shown in the attached drawings preferential practice of a protection for terminals.
En dichos planos la figura (1) muestra un ejemplo de terminal del tipo de anilla cerrada con la protección para terminales aplicada.In these planes, figure (1) shows a Example of ring type terminal closed with protection for terminals applied.
La figura (2) muestra una vista interna del anterior ejemplo de terminal del tipo de anilla cerrada con la protección para terminales aplicada, para comprender mejor sus detalles de aplicación.Figure (2) shows an internal view of the previous example of ring type terminal closed with the terminal protection applied, to better understand your application details.
La figura (3) muestra, como ejemplo, la aplicación de la protección para terminales a diversos tipos de terminales eléctricos.Figure (3) shows, as an example, the application of protection for terminals to various types of electrical terminals
La protección para terminales objeto de la presente invención, esta formada, como puede apreciarse en el plano anexo, por una soldadura (1) de estaño que sella la entrada de la unión entre el cuerpo metálico del terminal (2) y el núcleo (3) de cobre del conductor eléctrico (4), a la par que mejora su conexión eléctrica ya realizada por engaste a presión por medio de las patillas de engaste (5). Sobre este conjunto se realiza el sobremoldeo de la envolvente (6), utilizando un molde apropiado y material termoplástico a temperatura preferentemente igual o menor a 180º para evitar dañar la protección aislante (7) del conductor eléctrico (4). La envolvente (6) puede realizarse con cualquier forma, aunque se dará preferencia a aquellas formas semitrapezoidales ligeramente achaflanadas hacia la parte delantera de terminal (2) para permitir un menor consumo de material plástico, obviamente dejando libre la parte frontal del terminal (2) par permitir su atornillado o conexión eléctrica. Esta envolvente (6), al estar sobremoldeada sobre la unión entre el conductor eléctrico (4) y el terminal (2) realiza un perfecto sellado tanto de la línea de unión frontal (8) como de la posterior (9), que son los puntos usualmente más susceptibles para el filtrado del agua.The protection for terminals subject to present invention, is formed, as can be seen in the plane annex, by a solder (1) of tin that seals the entrance of the junction between the metal body of the terminal (2) and the core (3) of copper of the electric conductor (4), while improving its connection electric already made by crimping by means of the crimping pins (5). On this set the overmolding of the envelope (6), using an appropriate mold and thermoplastic material at preferably the same or lower temperature at 180º to avoid damaging the insulating protection (7) of the conductor electric (4). The envelope (6) can be made with any form, although preference will be given to those forms semitrapezoidal slightly chamfered towards the front terminal (2) to allow lower material consumption plastic, obviously leaving the front of the terminal free (2) to allow screwing or electrical connection. This envelope (6), being overmolded on the joint between the electric conductor (4) and terminal (2) performs a perfect sealing of both the front junction line (8) and the back (9), which are usually the most susceptible points for the water filtering
Este tipo de protección puede aplicarse a todo tipo de terminales eléctricos, como los de anilla cerrada (10), anilla abierta (11), horquilla (12), faston hembra (13), faston macho (14), cilíndrico (15), etc...This type of protection can be applied to all type of electrical terminals, such as closed ring (10), open ring (11), fork (12), female faston (13), faston male (14), cylindrical (15), etc ...
Se omite voluntariamente hacer una descripción detallada del resto de particularidades de la protección que se presenta o de los elementos componentes que lo integran, pues estimamos por nuestra parte que el resto de dichas particularidades no son objeto de reivindicación alguna.A description is voluntarily omitted detailed of the rest of the particularities of the protection that presents or of the component elements that integrate it, because we believe that the rest of these particularities They are not subject to any claim.
Una vez descrita suficientemente la naturaleza de la presente invención, así como una forma de llevarlo a la práctica, solo nos queda por añadir que su descripción no es limitativa, pudiéndose efectuar algunas variaciones, tanto en materiales como en formas o tamaños, siempre y cuando dichas variaciones no alteren la esencialidad de las características que se reivindican a continuación.Once the nature of the present invention, as well as a way of bringing it to the practice, we just have to add that its description is not limiting, being able to make some variations, both in materials as in shapes or sizes, as long as said variations do not alter the essentiality of the characteristics that They are claimed below.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200400087A ES2237999A1 (en) | 2004-01-16 | 2004-01-16 | Protection device for protecting junctions between conductor and terminal, has envelope made of molded thermoplastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200400087A ES2237999A1 (en) | 2004-01-16 | 2004-01-16 | Protection device for protecting junctions between conductor and terminal, has envelope made of molded thermoplastic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2237999A1 true ES2237999A1 (en) | 2005-08-01 |
Family
ID=34802826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200400087A Pending ES2237999A1 (en) | 2004-01-16 | 2004-01-16 | Protection device for protecting junctions between conductor and terminal, has envelope made of molded thermoplastic material |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2237999A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3444618A (en) * | 1965-09-23 | 1969-05-20 | Whirlpool Co | Method of forming electrical elements |
| US3978581A (en) * | 1974-02-23 | 1976-09-07 | Yuko Shindosho Company Limited | Method of making a pin plug |
| US6170148B1 (en) * | 1995-10-13 | 2001-01-09 | Bently Nevada Corporation | Method of making an encapsulated transducer with an alignment plug |
| US20020043882A1 (en) * | 2000-10-18 | 2002-04-18 | Mitsubishi Denki Kabushiki Kaisha | AC generator for use in vehicle and method for forming connection latch portion in conductor wire applied to stator winding thereof |
| US6514064B2 (en) * | 1999-12-09 | 2003-02-04 | Yazaki Corporation | Apparatus for waterproofing a terminal connecting portion of a sheathed wire |
-
2004
- 2004-01-16 ES ES200400087A patent/ES2237999A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3444618A (en) * | 1965-09-23 | 1969-05-20 | Whirlpool Co | Method of forming electrical elements |
| US3978581A (en) * | 1974-02-23 | 1976-09-07 | Yuko Shindosho Company Limited | Method of making a pin plug |
| US6170148B1 (en) * | 1995-10-13 | 2001-01-09 | Bently Nevada Corporation | Method of making an encapsulated transducer with an alignment plug |
| US6514064B2 (en) * | 1999-12-09 | 2003-02-04 | Yazaki Corporation | Apparatus for waterproofing a terminal connecting portion of a sheathed wire |
| US20020043882A1 (en) * | 2000-10-18 | 2002-04-18 | Mitsubishi Denki Kabushiki Kaisha | AC generator for use in vehicle and method for forming connection latch portion in conductor wire applied to stator winding thereof |
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