WO2007090921A1 - Connection block for electrical conductors and hand tool for for deforming the terminal points of electrical cables - Google Patents

Connection block for electrical conductors and hand tool for for deforming the terminal points of electrical cables Download PDF

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Publication number
WO2007090921A1
WO2007090921A1 PCT/ES2007/070029 ES2007070029W WO2007090921A1 WO 2007090921 A1 WO2007090921 A1 WO 2007090921A1 ES 2007070029 W ES2007070029 W ES 2007070029W WO 2007090921 A1 WO2007090921 A1 WO 2007090921A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
hole
connection block
section
mouth
Prior art date
Application number
PCT/ES2007/070029
Other languages
Spanish (es)
French (fr)
Inventor
Fernando GARCÍA-MAURIÑO DELAS
Original Assignee
Garcia-Maurino Delas Fernando
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
Priority claimed from ES200600306A external-priority patent/ES2279726B1/en
Priority claimed from ES200602080A external-priority patent/ES2291126B1/en
Application filed by Garcia-Maurino Delas Fernando filed Critical Garcia-Maurino Delas Fernando
Priority to EP07712572A priority Critical patent/EP1986274A4/en
Publication of WO2007090921A1 publication Critical patent/WO2007090921A1/en

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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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/422—Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/426—Securing by a separate resilient retaining piece supported by base or case, e.g. collar or metal contact-retention clip
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • 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
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section

Definitions

  • the present invention relates to a hand tool for the deformation of terminal tips of electric cables and a connection block for electric conductors preferably provided with said terminal tips, which comprises a socket for removable placement on a support profile, alone or forming a connection strip by means of the parallel association of several connection blocks, a first opening for an input conductor and a second opening for an output conductor.
  • the connection block optionally incorporates one of said tools.
  • Said terminal points normally have a conductive front part for the cable wires and an insulating rear part for the cable sheath.
  • the diameter of the back is larger than that of the previous part.
  • the terminal tips generally have a cylindrical configuration and section according to the cable to be connected.
  • the terminals of the strips or of the connection blocks have, for the introduction or opening of the terminal tips, various sections, such as square, rectangular, with curved and straight faces, etc., the section of the opening being normally for the terminal tips different from the circular section of the existing terminal tips, which makes the introduction of said terminal points in the mouths of the connecting blocks remarkably difficult, the operator being often obliged to use pliers to press and deform the tips terminals to give them a form that allows their introduction into the connection block, with the difficulties and defects in the result that this implies.
  • the leading conductive part of the terminal tip is thinner walls, so that they are better adapted to the wires of the cable and the electrical contact of the cable and the terminal tip is facilitated, it is common for the operator cause excessive deformation of the terminal tip that prevents the introduction of the conductor into the terminal.
  • connection blocks are used in the realization of low voltage electrical panels and are usually arranged together to form connecting strips or strips, which are prepared to receive the cables to be connected without the installer having to manipulate the interior installation of the picture.
  • Said connection blocks comprise an insulating body provided with a socket that is removably attached to a support profile in the electrical panel.
  • connection blocks normally include two connection terminals, for the input and output cables or conductors respectively, and a conductive bridge between the terminals.
  • one of the terminals is intended for the connection of an input conductor from the panel, which connects with the interior installation carried out in a factory or workshop, and the other terminal is intended for the connection of an output conductor for the installation exterior, which the installer performs at the place where the electrical panel is installed.
  • the ends of the input and output conductors are generally provided with terminals or terminal tips to prevent the wires of the cable from being disorganized and scattered.
  • connection block must be designed for the maximum capacity of foreseeable use, which is related to the section of the largest cable to be connected.
  • connection block For various reasons, it is relatively frequent that the input conductor to the connection block is of smaller section than the output conductor of the block, and this requires the use of connection blocks with one of the terminals oversized with respect to the input driver.
  • An objective of the present invention is to provide a conductor connection system in electrical panels that simplifies the work of the installer and improves the characteristics of the connection.
  • a hand tool for the deformation of terminal ends of electric cables comprises a hole whose entrance is of greater section than that of the terminal tip to be deformed, for the loose introduction in the axial direction of the anterior part of said terminal tip, and whose walls are, at least in a section, convergent towards the interior thereof and determine the outer shape of the terminal tip when it is pushed manually into the hole.
  • the walls of the hole are, at least in one section, gradually converging towards the interior thereof, that is to say, said walls converge progressively and do not suffer sudden narrowing.
  • the terminal tip progressively deforms along the hole and the effort to push the terminal tip into the hole is dosed and reduced.
  • At least in one section of the hole at least one of the walls of the hole is substantially parallel to the axial direction of the hole, while at least one of the other walls of the hole is convergent towards the interior thereof.
  • sections or sub-sections of straight walls (parallel to the axial direction of the hole) and convergent can be alternated.
  • the walls of the hole are, at least in one section, alternately convergent towards the interior thereof, which admits various embodiments: for example, in each sub-section there may be a single converging wall (which changes in the next sub-section) or in successive sub-sections, two to two straight and converging walls can be alternated.
  • the terminal tip is not deformed on all sides simultaneously, but alternatively or successively.
  • the configuration of the tool ensures that the deformation of the terminal tip is regular and that the section of its anterior part is decreasing, which facilitates that the terminal tip of the electric cable is easily inserted into the corresponding opening of a connection terminal.
  • the contour of the variable section of the hole may comprise curved and straight segments, or a combination of both. In this way, terminal points of suitable section can be obtained to the different existing connection terminals.
  • the orifice walls define, at least in one section, a substantially truncated pyramidal hole.
  • the truncated pyramidal shape provides a decreasing rectangular or square section in the anterior part of the terminal tip, which is particularly suitable for most of the connection terminals.
  • the section of at least one section of the hole is substantially constant. This section, if available after the section of decreasing section, allows the entire front part of the end point to be introduced into the hole without crushing more than Io due to its anterior end.
  • a connection block for electrical conductors comprises a single clamping terminal for the ends of the input and output conductors, so that said first and second openings are embedded, in opposite and outdated arrangement, to said clamping terminal, which comprises a treadmill and a flange, so that, when connecting the two conductors, the ends thereof are superimposed and locked between the treadmill and the flange.
  • the first mouth comprises fins in the form of a harpoon or the like that prevent the exit of the terminal tip of the input conductor, and therefore of said input conductor, outside the first mouth.
  • connection block comprises a slot that intersects the first mouth, and a removable tongue that is inserted into the slot until entering the first mouth and opposes the backward movement of the terminal tip of the input cable out of the first mouth.
  • the end of the tongue that is inserted in the first mouth has a "U” shape, so that, with the tongue inserted in the first mouth, the arms of the "U" flank the input cable.
  • the arms of the "U” converge, at least in a section, to define an inner narrowing, so that the tongue better embraces the input cable.
  • these means for holding the terminal tip of the input conductor in the first opening allow leaving the input conductor attached to the connection block, which releases both hands of the operator to comfortably make the connection of the output conductor in the second mouth.
  • the terminal is indirectly tightened and comprises a thyme accessible from outside the connection block, so that the pin is fixed in the connection block and the flange and the screw cooperate to tighten the ends of the input conductors and exit against the treadmill, although the terminal could be directly tightened, so that the screw would act as a treadmill and directly exert the tightening on the conductor ends.
  • the advantage of indirect tightening is that the rotation of the screw does not damage the conductors or their terminal points, since it is the fixed treadmill that exerts the tightening on them.
  • connection block incorporates at least one segment of the input conductor that is fastened in the first mouth.
  • the input cable already attached to the connection block can be supplied to the electrical panel manufacturer.
  • the terminal tip of the input conductor can have a groove, made by pressure, to increase the friction with the end of the input cable covered by it, so that said fluted prevents the conductor from leaving the terminal tip before pressing it. on the connection terminal.
  • the same groove serves to friction with the terminal tip of the output conductor when the two terminal tips are tightened on the connection terminal.
  • connection block comprises a hole whose entrance is of greater section than that of a terminal tip to be deformed, for the loose introduction in the axial direction of the anterior part of said terminal tip, and whose walls define a hollow of substantially truncated pyramidal form.
  • Said orifice presents the characteristics and advantages of the manual tool described for the deformation of terminal tips of electric cables.
  • Figure 1 is a top plan view of a tool for deformation of terminal tips
  • Figure 2 is an elevation view of the tool of Figure 1 sectioned according to the plane A-A ';
  • Figure 3 is an elevation view of a terminal tip when inserted and deformed in a hole of the tool;
  • Figure 4 is a front view of a deformed terminal tip;
  • Figure 5 is a side view of a terminal tip once deformed and inserted into a terminal of a block or terminal strip;
  • Figure 6 is a perspective view of a tool for the deformation of terminal tips whose configuration is analogous to that of the covers or separators that are laterally attached to the connecting blocks or strips;
  • Figure 7 is a sectional side view of a connection block with two conductors housed in a terminal for tightening;
  • Figure 8 is a view analogous to that of Figure 7 but without the conductors;
  • Figure 9 is an anterior sectional view taken on line B-B 'of Figure 8;
  • Figure 10 is a top plan view of the block of Figure 8;
  • Figure 11 is a view analogous to that of Figure 8 but of another embodiment; and Figure 12 is a rear view of the embodiment of Figure 11.
  • Figures 1 to 6 refer to a hand tool for the deformation of electrical cable terminal tips
  • Figures 7 to 12 refer to a connection block for electrical cables provided with terminal tips containing one of said tools, although if the cables do not incorporate terminal tips, instead of talking about these we would talk about the ends of the conductors.
  • a tool for the deformation of terminal tips comprises a body or matrix 1 provided with a hole 2 that has a mouth 21 for the introduction of the terminal tip 31 to be deformed, and whose inner walls 22 converge towards the opposite end or end to the mouth 21.
  • the terminal tip 31 comprises a front part 33 (which receives the bare end of a cable 3) and a widened rear part 32 (to cover the cable covering).
  • the interior walls 22 define a general truncated pyramidal configuration with a square section, although said section can take any shape according to the openings of the existing connection blocks.
  • the body or matrix of the tool can take different geometric shapes, such as for example the connection blocks (figure 5), the end stops, the covers or the insulating separators that are usually attached to the blocks or the connecting strips, etc, as can be seen in figure 6.
  • the body of the tool can adopt other configurations, such as, for example, the handle of a screwdriver or any other tool commonly used in the assembly of electrical installations, or it may simply be constituted by a suitable block to provide a grip and a transport comfortable.
  • the body of the tool comprises several holes of different sections and sizes to make possible the deformation of suitable terminal tips for different diameters of electric cables.
  • a connection block comprises a body of insulating material which at its back has a socket 11 subject to a standardized profile, and on its sides it presents paths for the conductors to be connected, a first opening 12 for an input conductor 5 and a second opening 13 for an output conductor 3. These openings are in opposite and outdated arrangement and reach a housing 14 in which It houses a terminal 4 for connection and clamping of both conductors.
  • connection block comprises, in its front part, a hole 15 for access to a clamping screw 41 of the terminal 4, which also comprises a flange 43 and a pin 42 embedded in the connection block just in front of the position of the terminal tip 51 (or the end) of the input conductor 5 once inserted into its mouth 12.
  • Said terminal tip 51 is, once placed in position, held between the flange 43 and the trader 42 by virtue of the pressure exerted by the screw 41, which acts on the pisador 42.
  • the tightening of the terminal 4 is of indirect type, but if the pisador is omitted the tightening would be of direct type on the part of the screw 41.
  • connection block comprises, in its anterior part and adjacent to the hole 15, a forming hole or recess 2, as a tool for the deformation of terminal tips, approximately truncated pyramidal for the conformation of the terminal tip 31 (where appropriate ) of the output conductor 3.
  • the first mouth 12 for the input cable is extended internally in a housing 17 that has, in its previous contour, fins 18 in the form of a harpoon or the like for blocking the terminal tip 51 of the input conductor 5, and of the same conductor, inside the mouth 12.
  • connection block comprises a slot that intersects the first mouth 12, and a removable tongue 19 that is inserted into the slot until entering the first mouth 12 and opposes the backward movement of The terminal tip 51 of the input conductor 5 out of the first mouth 12.
  • the end of the tongue 19 that is inserted in the first mouth 12 has a "U" shape, so that, with the tongue 19 inserted in the Ia First mouth 12, the arms of the "U” flank the input conductor 5. Said arms are convergent near their ends and define in that area a narrowing of the hollow of the "U”, in order to embrace the input conductor and hold it better.
  • the section of the inner part of the "U” is in accordance with that of the input conductor 5, normally circular, to better adapt to it.
  • connection block is prepared to receive an input conductor 5 with a terminal tip 51 of square or rectangular section, provided with a deformation that prevents impeding the introduction of the output conductor 3 in the housing area 14 of the terminal 4, said location being located terminal tip 51 in the front part of said housing 14.
  • the second opening 13, for the output conductor 3 is displaced towards the rear part of the connection block, so that the front end of the terminal tip 31 of the output conductor 3 is arranged at the rear of the housing 14 of the terminal 4, and is in immediate contact with the adjacent end of the terminal tip 51 of the input conductor 5.
  • the mobile flange or armature 43 comprises a thread that attaches to the screw 41, so that, when tightening the screw, said flange tightens the terminal tips (or the ends) of the two conductors against the trader 42 (or directly against the screw 41, if applicable).

Abstract

The invention relates to a connection block for electrical conductors, including a first port (12) for an input conductor, a second port (13) for an output conductor and a single terminal (4) for clamping the ends or points of the input and output conductors, such that the opposing offset ports are sunk into said terminal (4). The connection block also includes means (18; 19) for fixing the terminal point of the input conductor in the first port, which oppose the withdrawal of the terminal point from the port. The invention also includes a hole (16), the inlet of which has a larger cross-section than that of the terminal point to be deformed, normally that of the output conductor, and said hole determines the outer shape of the terminal point when said point is pushed manually into the hole.

Description

Bloque de conexión para conductores eléctricos y herramienta manual para Ia deformación de puntas terminales de cables eléctricosConnection block for electrical conductors and manual tool for the deformation of electrical cable terminal tips
La presente invención se refiere a una herramienta manual para Ia deformación de puntas terminales de cables eléctricos y a un bloque de conexión para conductores eléctricos provistos preferentemente de dichas puntas terminales, el cual comprende un zócalo para su colocación amovible sobre un perfil de soporte, en solitario o conformando una regleta de conexión mediante Ia asociación en paralelo de varios bloques de conexión, una primera embocadura para un conductor de entrada y una segunda embocadura para un conductor de salida. El bloque de conexión incorpora opcionalmente una de dichas herramientas.The present invention relates to a hand tool for the deformation of terminal tips of electric cables and a connection block for electric conductors preferably provided with said terminal tips, which comprises a socket for removable placement on a support profile, alone or forming a connection strip by means of the parallel association of several connection blocks, a first opening for an input conductor and a second opening for an output conductor. The connection block optionally incorporates one of said tools.
ESTADO DE LA TÉCNICA ANTERIORSTATE OF THE PREVIOUS TECHNIQUE
Es habitual Ia utilización de puntas terminales o punteras para cubrir los extremos de los cables eléctricos que se desea conectar mediante bloques o regletas de conexión.It is usual to use terminal tips or toes to cover the ends of the electric cables that you want to connect by means of connecting blocks or strips.
Dichas puntas terminales presentan normalmente una parte anterior conductora para los hilos del cable y una parte posterior aislante para Ia funda del cable. Habitualmente el diámetro de Ia parte posterior es mayor que el de Ia parte anterior.Said terminal points normally have a conductive front part for the cable wires and an insulating rear part for the cable sheath. Usually the diameter of the back is larger than that of the previous part.
Las puntas terminales presentan generalmente una configuración cilindrica y de sección acorde con Ia del cable a conectar. Sin embargo, los terminales de las regletas o de los bloques de conexión presentan, para Ia introducción o embocadura de las puntas terminales, secciones diversas, tales como cuadradas, rectangulares, con caras curvas y rectas, etc, siendo normalmente Ia sección de Ia embocadura para las puntas terminales diferente de Ia sección circular de las puntas terminales existentes, Io cual dificulta notablemente Ia introducción de dichas puntas terminales en las embocaduras de los bloques de conexión, viéndose el operario a menudo obligado a utilizar unos alicates para presionar y deformar las puntas terminales para darles una forma que permita su introducción en el bloque de conexión, con las dificultades y los defectos en el resultado que esto implica. Además, dado que en general Ia parte anterior conductora de Ia punta terminal es de paredes más delgadas, a fin de que se adapten mejor a los hilos del cable y se facilite el contacto eléctrico del cable y Ia punta terminal, es frecuente que el operario provoque una deformación excesiva de Ia punta terminal que impida Ia introducción del conductor en el terminal.The terminal tips generally have a cylindrical configuration and section according to the cable to be connected. However, the terminals of the strips or of the connection blocks have, for the introduction or opening of the terminal tips, various sections, such as square, rectangular, with curved and straight faces, etc., the section of the opening being normally for the terminal tips different from the circular section of the existing terminal tips, which makes the introduction of said terminal points in the mouths of the connecting blocks remarkably difficult, the operator being often obliged to use pliers to press and deform the tips terminals to give them a form that allows their introduction into the connection block, with the difficulties and defects in the result that this implies. In addition, since in general the leading conductive part of the terminal tip is thinner walls, so that they are better adapted to the wires of the cable and the electrical contact of the cable and the terminal tip is facilitated, it is common for the operator cause excessive deformation of the terminal tip that prevents the introduction of the conductor into the terminal.
Estos bloques de conexión se emplean en Ia realización de cuadros eléctricos de baja tensión y habitualmente se disponen unos juntos a otros formando regletas o regleteros de conexión, que quedan preparados para recibir los cables a conectar sin que el instalador tenga que manipular Ia instalación interior del cuadro. Dichos bloques de conexión comprenden un cuerpo aislante provisto de un zócalo que se sujeta de manera amovible a un perfil de soporte en el cuadro eléctrico.These connection blocks are used in the realization of low voltage electrical panels and are usually arranged together to form connecting strips or strips, which are prepared to receive the cables to be connected without the installer having to manipulate the interior installation of the picture. Said connection blocks comprise an insulating body provided with a socket that is removably attached to a support profile in the electrical panel.
Los bloques de conexión incluyen normalmente dos bornes de conexión, para los cables o conductores de entrada y salida respectivamente, y un puente conductor entre los bornes. Normalmente, uno de los bornes se destina a Ia conexión de un conductor de entrada procedente del cuadro, que conecta con Ia instalación interior efectuada en una fábrica o taller, y el otro borne se destina a Ia conexión de un conductor de salida para Ia instalación exterior, que efectúa el instalador en el lugar donde se instala el cuadro eléctrico.The connection blocks normally include two connection terminals, for the input and output cables or conductors respectively, and a conductive bridge between the terminals. Normally, one of the terminals is intended for the connection of an input conductor from the panel, which connects with the interior installation carried out in a factory or workshop, and the other terminal is intended for the connection of an output conductor for the installation exterior, which the installer performs at the place where the electrical panel is installed.
Los extremos de los conductores de entrada y salida están generalmente provistos de punteras o puntas terminales para evitar que los hilos del cable se desordenen y esparzan.The ends of the input and output conductors are generally provided with terminals or terminal tips to prevent the wires of the cable from being disorganized and scattered.
El cableado de Ia instalación interior está perfectamente definido y controlado, ya que se efectúa en el taller. Sin embargo, el cableado de Ia instalación exterior depende de los requisitos y circunstancias de cada aplicación. Por este motivo, el bloque de conexión debe diseñarse para Ia capacidad máxima de uso previsible, que está relacionada con Ia sección del mayor cable que hay que conectar.The wiring of the interior installation is perfectly defined and controlled, since it is carried out in the workshop. However, the wiring of the outdoor installation depends on the requirements and circumstances of each application. For this reason, the connection block must be designed for the maximum capacity of foreseeable use, which is related to the section of the largest cable to be connected.
Por diversos motivos, es relativamente frecuente que el conductor de entrada al bloque de conexión sea de menor sección que el conductor de salida del bloque, y esto obliga a utilizar bloques de conexión con uno de los bornes sobredimensionado con respecto al conductor de entrada.For various reasons, it is relatively frequent that the input conductor to the connection block is of smaller section than the output conductor of the block, and this requires the use of connection blocks with one of the terminals oversized with respect to the input driver.
DESCRIPCIÓN DE LA INVENCIÓNDESCRIPTION OF THE INVENTION
Un objetivo de Ia presente invención es el de proporcionar un sistema de conexión de conductores en cuadros eléctricos que simplifique Ia labor del instalador y mejore las características del conexionado.An objective of the present invention is to provide a conductor connection system in electrical panels that simplifies the work of the installer and improves the characteristics of the connection.
Según un primer aspecto de Ia invención, una herramienta manual para Ia deformación de puntas terminales de cables eléctricos comprende un orificio cuya entrada es de mayor sección que Ia de Ia punta terminal a deformar, para Ia introducción holgada en Ia dirección axial de Ia parte anterior de dicha punta terminal, y cuyas paredes son, al menos en un tramo, convergentes hacia el interior del mismo y determinan Ia forma exterior de Ia punta terminal cuando ésta es empujada manualmente dentro del orificio.According to a first aspect of the invention, a hand tool for the deformation of terminal ends of electric cables comprises a hole whose entrance is of greater section than that of the terminal tip to be deformed, for the loose introduction in the axial direction of the anterior part of said terminal tip, and whose walls are, at least in a section, convergent towards the interior thereof and determine the outer shape of the terminal tip when it is pushed manually into the hole.
Preferiblemente, las paredes del orificio son, al menos en un tramo, gradualmente convergentes hacia el interior del mismo, es decir, dichas paredes convergen de manera progresiva y no sufren estrechamientos bruscos. De este modo Ia punta terminal se va deformando progresivamente a Io largo del orificio y se dosifica y reduce el esfuerzo de empujar Ia punta terminal en el orificio.Preferably, the walls of the hole are, at least in one section, gradually converging towards the interior thereof, that is to say, said walls converge progressively and do not suffer sudden narrowing. In this way, the terminal tip progressively deforms along the hole and the effort to push the terminal tip into the hole is dosed and reduced.
En una realización, al menos en un tramo del orificio, al menos una de las paredes del orificio es sustancialmente paralela a Ia dirección axial del orificio, mientras que al menos otra de las paredes del orificio es convergente hacia el interior del mismo. Así, se pueden ir alternando tramos o subtramos de paredes rectas (paralelas a Ia dirección axial del orificio) y convergentes.In one embodiment, at least in one section of the hole, at least one of the walls of the hole is substantially parallel to the axial direction of the hole, while at least one of the other walls of the hole is convergent towards the interior thereof. Thus, sections or sub-sections of straight walls (parallel to the axial direction of the hole) and convergent can be alternated.
Una posibilidad es que las paredes del orificio sean, al menos en un tramo, alternativamente convergentes hacia el interior del mismo, Io cual admite diversas realizaciones: por ejemplo, en cada subtramo puede haber una única pared convergente (que cambia en el siguiente subtramo) o en sucesivos subtramos se pueden ir alternando dos a dos paredes rectas y convergentes. En cualquier caso se consigue que Ia punta terminal no se deforme por todos los lados simultáneamente, sino alternativa o sucesivamente. La configuración de Ia herramienta consigue que Ia deformación de Ia punta terminal sea regular y que Ia sección de su parte anterior sea decreciente, Io cual facilita que Ia punta terminal del cable eléctrico se introduzca fácilmente en Ia embocadura correspondiente de un borne de conexión.One possibility is that the walls of the hole are, at least in one section, alternately convergent towards the interior thereof, which admits various embodiments: for example, in each sub-section there may be a single converging wall (which changes in the next sub-section) or in successive sub-sections, two to two straight and converging walls can be alternated. In any case it is achieved that the terminal tip is not deformed on all sides simultaneously, but alternatively or successively. The configuration of the tool ensures that the deformation of the terminal tip is regular and that the section of its anterior part is decreasing, which facilitates that the terminal tip of the electric cable is easily inserted into the corresponding opening of a connection terminal.
El contorno de Ia sección variable del orificio puede comprender segmentos curvos y rectos, o una combinación de ambos. De este modo se pueden obtener puntas terminales de sección adecuada a los diferentes bornes de conexión existentes.The contour of the variable section of the hole may comprise curved and straight segments, or a combination of both. In this way, terminal points of suitable section can be obtained to the different existing connection terminals.
Preferiblemente, las paredes del orificio definen, al menos en un tramo, un hueco de forma sustancial mente troncopiramidal. La forma troncopiramidal proporciona una sección decreciente rectangular o cuadrada en Ia parte anterior de Ia punta terminal, Ia cual es particularmente adecuada para Ia mayoría de los bornes de conexión.Preferably, the orifice walls define, at least in one section, a substantially truncated pyramidal hole. The truncated pyramidal shape provides a decreasing rectangular or square section in the anterior part of the terminal tip, which is particularly suitable for most of the connection terminals.
En una realización, Ia sección de al menos un tramo del orificio es sustancialmente constante. Este tramo, si se dispone a continuación del tramo de sección decreciente, permite introducir toda Ia parte anterior de Ia punta terminal en el orificio sin aplastar más de Io debido su extremo anterior.In one embodiment, the section of at least one section of the hole is substantially constant. This section, if available after the section of decreasing section, allows the entire front part of the end point to be introduced into the hole without crushing more than Io due to its anterior end.
Según un segundo aspecto de Ia invención, un bloque de conexión para conductores eléctricos comprende un único borne de apriete para los extremos de los conductores de entrada y salida, de manera que dichas embocaduras primera y segunda están embocadas, en disposición opuesta y desfasada, a dicho borne de apriete, el cual comprende un pisador y una brida, de manera que, al conectar los dos conductores, los extremos de los mismos quedan superpuestos y bloqueados entre el pisador y Ia brida.According to a second aspect of the invention, a connection block for electrical conductors comprises a single clamping terminal for the ends of the input and output conductors, so that said first and second openings are embedded, in opposite and outdated arrangement, to said clamping terminal, which comprises a treadmill and a flange, so that, when connecting the two conductors, the ends thereof are superimposed and locked between the treadmill and the flange.
De este modo se evita Ia utilización de uno de los conjuntos brida-pisador y del puente conductor entre bornes de los bloques de conexión convencionales, con el consiguiente ahorro de material. Además se proporciona un contacto directo entre los conductores de entrada y salida, Io cual permite que Ia corriente fluya entre ellos sin elementos intermedios, que puede ser necesario dimensionar o que pueden presentar problemas de sobrecalentamiento. La disposición desfasada de las dos embocaduras permite que Ia introducción del extremo de un conductor en el borne no obstruya Ia introducción del extremo del otro conductor. Naturalmente estas operaciones se facilitan, y el contacto entre los dos conductores se mejora, si los conductores están provistos de puntas terminales.In this way, the use of one of the flange-trampler assemblies and the conductive bridge between terminals of the conventional connection blocks is avoided, with the consequent saving of material. In addition, a direct contact between the input and output conductors is provided, which allows the current to flow between them without intermediate elements, which may be necessary to size or that may have overheating problems. The outdated arrangement of the two openings allows the introduction of the end of one conductor into the terminal does not obstruct the introduction of the end of the other conductor. Naturally these operations are facilitated, and the contact between the two conductors is improved, if the conductors are provided with terminal tips.
En una realización, Ia primera embocadura comprende unas aletas en forma de arpón o similar que impiden Ia salida de Ia punta terminal del conductor de entrada, y por tanto de dicho conductor de entrada, fuera de Ia primera embocadura.In one embodiment, the first mouth comprises fins in the form of a harpoon or the like that prevent the exit of the terminal tip of the input conductor, and therefore of said input conductor, outside the first mouth.
En una realización, el bloque de conexión comprende una ranura que se intersecta con Ia primera embocadura, y una lengüeta extraíble que se introduce en Ia ranura hasta entrar en Ia primera embocadura y se opone al movimiento de retroceso de Ia punta terminal del cable de entrada hacia fuera de Ia primera embocadura.In one embodiment, the connection block comprises a slot that intersects the first mouth, and a removable tongue that is inserted into the slot until entering the first mouth and opposes the backward movement of the terminal tip of the input cable out of the first mouth.
Ventajosamente, el extremo de Ia lengüeta que se introduce en Ia primera embocadura tiene forma de "U", de manera que, con Ia lengüeta introducida en Ia primera embocadura, los brazos de Ia "U" flanquean el cable de entrada.Advantageously, the end of the tongue that is inserted in the first mouth has a "U" shape, so that, with the tongue inserted in the first mouth, the arms of the "U" flank the input cable.
En una realización, los brazos de Ia "U" convergen, al menos en un tramo, para definir un estrechamiento interior, de manera que Ia lengüeta abrace mejor el cable de entrada.In one embodiment, the arms of the "U" converge, at least in a section, to define an inner narrowing, so that the tongue better embraces the input cable.
Sea con las aletas o con Ia lengüeta, estos medios de sujeción de Ia punta terminal del conductor de entrada en Ia primera embocadura permiten dejar el conductor de entrada sujeto al bloque de conexión, Io cual libera las dos manos del operario para efectuar cómodamente Ia conexión del conductor de salida en Ia segunda embocadura.Either with the fins or with the tongue, these means for holding the terminal tip of the input conductor in the first opening allow leaving the input conductor attached to the connection block, which releases both hands of the operator to comfortably make the connection of the output conductor in the second mouth.
Preferiblemente, el borne es de apriete indirecto y comprende un tomillo accesible desde el exterior del bloque de conexión, de manera que el pisador está fijado en el bloque de conexión y Ia brida y el tornillo cooperan para apretar los extremos de los conductores de entrada y salida contra el pisador, aunque el borne podría ser de apriete directo, de manera que el tornillo actuaría como pisador y ejercería directamente el apriete sobre los extremos de los conductores. La ventaja del apriete indirecto estriba en que el giro del tornillo no daña los conductores o sus puntas terminales, ya que es el pisador fijo el que ejerce el apriete sobre estos.Preferably, the terminal is indirectly tightened and comprises a thyme accessible from outside the connection block, so that the pin is fixed in the connection block and the flange and the screw cooperate to tighten the ends of the input conductors and exit against the treadmill, although the terminal could be directly tightened, so that the screw would act as a treadmill and directly exert the tightening on the conductor ends. The advantage of indirect tightening is that the rotation of the screw does not damage the conductors or their terminal points, since it is the fixed treadmill that exerts the tightening on them.
Ventajosamente, el bloque de conexión incorpora al menos un segmento del conductor de entrada que está sujeto en Ia primera embocadura. Así, se puede suministrar al fabricante del cuadro eléctrico el cable de entrada ya acoplado al bloque de conexión. La punta terminal del conductor de entrada puede presentar un estriado, realizado mediante presión, para aumentar Ia fricción con el extremo del cable de entrada recubierto por ella, de manera que dicho estriado evite Ia salida del conductor fuera de Ia punta terminal antes de presionar ésta en el borne de conexión. El mismo estriado sirve para friccionar con Ia punta terminal del conductor de salida cuando se aprietan las dos puntas terminales en el borne de conexión.Advantageously, the connection block incorporates at least one segment of the input conductor that is fastened in the first mouth. Thus, the input cable already attached to the connection block can be supplied to the electrical panel manufacturer. The terminal tip of the input conductor can have a groove, made by pressure, to increase the friction with the end of the input cable covered by it, so that said fluted prevents the conductor from leaving the terminal tip before pressing it. on the connection terminal. The same groove serves to friction with the terminal tip of the output conductor when the two terminal tips are tightened on the connection terminal.
Preferiblemente, el bloque de conexión comprende un orificio cuya entrada es de mayor sección que Ia de una punta terminal que hay que deformar, para Ia introducción holgada en Ia dirección axial de Ia parte anterior de dicha punta terminal, y cuyas paredes definen un hueco de forma sustancialmente troncopiramidal. Dicho orificio presenta las características y ventajas de Ia herramienta manual descrita para Ia deformación de puntas terminales de cables eléctricos.Preferably, the connection block comprises a hole whose entrance is of greater section than that of a terminal tip to be deformed, for the loose introduction in the axial direction of the anterior part of said terminal tip, and whose walls define a hollow of substantially truncated pyramidal form. Said orifice presents the characteristics and advantages of the manual tool described for the deformation of terminal tips of electric cables.
BREVE DESCRIPCIÓN DE LOS DIBUJOSBRIEF DESCRIPTION OF THE DRAWINGS
A continuación se describirá, a título de ejemplo no limitativo, una realización de Ia invención, haciendo referencia a los dibujos adjuntos, en los cuales:Next, an embodiment of the invention will be described, by way of non-limiting example, with reference to the attached drawings, in which:
Ia figura 1 es una vista en planta superior de una herramienta para Ia deformación de puntas terminales;Figure 1 is a top plan view of a tool for deformation of terminal tips;
Ia figura 2 es una vista en alzado de Ia herramienta de Ia figura 1 seccionada según el plano A-A';Figure 2 is an elevation view of the tool of Figure 1 sectioned according to the plane A-A ';
Ia figura 3 es una vista en alzado de una punta terminal al introducirse y deformarse en un orificio de Ia herramienta; Ia figura 4 es una vista frontal de una punta terminal deformada;Figure 3 is an elevation view of a terminal tip when inserted and deformed in a hole of the tool; Figure 4 is a front view of a deformed terminal tip;
Ia figura 5 es una vista lateral de una punta terminal una vez deformada e introducida en un borne de un bloque o regleta de conexión; Ia figura 6 es una vista en perspectiva de una herramienta para Ia deformación de puntas terminales cuya configuración es análoga a Ia de las tapas o separadores que se adosan lateralmente a los bloques o regletas de conexión; Ia figura 7 es una vista lateral en sección de un bloque de conexión con dos conductores alojados en un borne para su apriete;Figure 5 is a side view of a terminal tip once deformed and inserted into a terminal of a block or terminal strip; Figure 6 is a perspective view of a tool for the deformation of terminal tips whose configuration is analogous to that of the covers or separators that are laterally attached to the connecting blocks or strips; Figure 7 is a sectional side view of a connection block with two conductors housed in a terminal for tightening;
Ia figura 8 es una vista análoga a Ia de Ia figura 7 pero sin los conductores; Ia figura 9 es una vista anterior en sección tomada sobre Ia línea B-B' de Ia figura 8; Ia figura 10 es una vista en planta superior del bloque de Ia figura 8;Figure 8 is a view analogous to that of Figure 7 but without the conductors; Figure 9 is an anterior sectional view taken on line B-B 'of Figure 8; Figure 10 is a top plan view of the block of Figure 8;
Ia figura 11 es una vista análoga a Ia de Ia figura 8 pero de otra realización; y Ia figura 12 es una vista posterior de Ia realización de Ia figura 11.Figure 11 is a view analogous to that of Figure 8 but of another embodiment; and Figure 12 is a rear view of the embodiment of Figure 11.
DESCRIPCIÓN DE REALIZACIONES PREFERIDASDESCRIPTION OF PREFERRED EMBODIMENTS
Las figuras 1 a 6 se refieren a una herramienta manual para Ia deformación de puntas terminales de cables eléctricos, y las figuras 7 a 12 se refieren a un bloque de conexión para cables eléctricos provistos de puntas terminales que contiene una de dichas herramientas, aunque si los cables no incorporan puntas terminales, en lugar de hablar de éstas se hablaría de los extremos de los conductores.Figures 1 to 6 refer to a hand tool for the deformation of electrical cable terminal tips, and Figures 7 to 12 refer to a connection block for electrical cables provided with terminal tips containing one of said tools, although if the cables do not incorporate terminal tips, instead of talking about these we would talk about the ends of the conductors.
Una herramienta para Ia deformación de puntas terminales según Ia invención comprende un cuerpo o matriz 1 provisto de un orificio 2 que presenta una boca 21 para Ia introducción de Ia punta terminal 31 a deformar, y cuyas paredes interiores 22 convergen hacia el fondo o extremo opuesto a Ia boca 21. La punta terminal 31 comprende una parte anterior 33 (que recibe el extremo desnudo de un cable 3) y una parte posterior 32 ensanchada (para abarcar el recubrimiento del cable).A tool for the deformation of terminal tips according to the invention comprises a body or matrix 1 provided with a hole 2 that has a mouth 21 for the introduction of the terminal tip 31 to be deformed, and whose inner walls 22 converge towards the opposite end or end to the mouth 21. The terminal tip 31 comprises a front part 33 (which receives the bare end of a cable 3) and a widened rear part 32 (to cover the cable covering).
En las figuras, las paredes interiores 22 definen un hueco de configuración general troncopiramidal de sección cuadrada, aunque dicha sección puede adoptar cualquier forma acorde con las embocaduras de los bloques de conexión existentes.In the figures, the interior walls 22 define a general truncated pyramidal configuration with a square section, although said section can take any shape according to the openings of the existing connection blocks.
Tampoco es necesario que todas las paredes 22 del orificio 2 converjan simultáneamente hacia el interior del mismo, sino que en diferentes tramos se pueden combinar paredes rectas (paralelas a Ia dirección axial del orificio) y paredes convergentes.It is also not necessary that all the walls 22 of the hole 2 converge simultaneously towards the interior thereof, but that in different sections You can combine straight walls (parallel to the axial direction of the hole) and converging walls.
Una vez posicionada Ia punta terminal 31 sobre el extremo convenientemente pelado de un cable eléctrico 3, se introduce dicha punta terminal en el orificioOnce the terminal tip 31 is positioned on the conveniently stripped end of an electric cable 3, said terminal tip is inserted into the hole
2 de Ia herramienta y se Ia empuja axialmente para procurar una deformación radial de Ia parte anterior de Ia punta terminal, de manera que Ia misma adopte una configuración análoga a Ia del hueco definido por las paredes interiores 22 del orificio 2. En Ia parte anterior de Ia punta terminal quedan conformadas unas caras 33 convergentes hacia el extremo anterior de Ia punta terminal 31.2 of the tool and is axially pushed to ensure a radial deformation of the anterior part of the terminal tip, so that it adopts a configuration analogous to that of the hole defined by the inner walls 22 of the hole 2. In the anterior part of the terminal tip, faces 33 converging towards the front end of the terminal tip 31 are formed.
Esta deformación de Ia punta terminal permite, en virtud de Ia sección decreciente obtenida, su cómoda introducción en Ia embocadura correspondiente de un bloque de conexión, como se aprecia en Ia figura 5, para proceder al posterior apriete y fijación del cable 3 en su borne.This deformation of the terminal tip allows, by virtue of the decreasing section obtained, its comfortable introduction into the corresponding opening of a connection block, as shown in Figure 5, to proceed with the subsequent tightening and fixing of the cable 3 in its terminal .
El cuerpo o matriz de Ia herramienta puede adoptar diferentes formas geométricas, como por ejemplo Ia de los bloques de conexión (figura 5), los topes finales, las tapas o los separadores aislantes que se adosan habitualmente a los bloques o las regletas de conexión, etc, como se puede apreciar en Ia figura 6.The body or matrix of the tool can take different geometric shapes, such as for example the connection blocks (figure 5), the end stops, the covers or the insulating separators that are usually attached to the blocks or the connecting strips, etc, as can be seen in figure 6.
Evidentemente el cuerpo de Ia herramienta puede adoptar otras configuraciones, como por ejemplo Ia del mango de un destornillador o de cualquier otra herramienta empleada habitualmente en el montaje de instalaciones eléctricas, o puede estar simplemente constituido por un bloque adecuado para proporcionar un agarre y un transporte cómodos.Obviously, the body of the tool can adopt other configurations, such as, for example, the handle of a screwdriver or any other tool commonly used in the assembly of electrical installations, or it may simply be constituted by a suitable block to provide a grip and a transport comfortable.
También puede preverse que el cuerpo de Ia herramienta comprenda varios orificios de diferentes secciones y tamaños para hacer posible Ia deformación de puntas terminales adecuadas para diferentes diámetros de cables eléctricos.It can also be provided that the body of the tool comprises several holes of different sections and sizes to make possible the deformation of suitable terminal tips for different diameters of electric cables.
Haciendo ahora referencia a las figuras 7 a 12, un bloque de conexión comprende un cuerpo de material aislante que en su parte posterior presenta un zócalo 11 de sujeción a un perfil normalizado, y en sus lados presenta sendas embocaduras para los conductores que hay que conectar, una primera embocadura 12 para un conductor de entrada 5 y una segunda embocadura 13 para un conductor de salida 3. Dichas embocaduras están en disposición opuesta y desfasada y llegan hasta un alojamiento 14 en el que se aloja un borne 4 de conexión y sujeción de ambos conductores.Referring now to FIGS. 7 to 12, a connection block comprises a body of insulating material which at its back has a socket 11 subject to a standardized profile, and on its sides it presents paths for the conductors to be connected, a first opening 12 for an input conductor 5 and a second opening 13 for an output conductor 3. These openings are in opposite and outdated arrangement and reach a housing 14 in which It houses a terminal 4 for connection and clamping of both conductors.
El cuerpo del bloque de conexión comprende, en su parte anterior, un orificio 15 de acceso a un tornillo 41 de apriete del borne 4, el cual también comprende una brida 43 y un pisador 42 incrustado en el bloque de conexión justo por delante de Ia posición de Ia punta terminal 51 (o del extremo) del conductor de entrada 5 una vez introducido en su embocadura 12. Dicha punta terminal 51 queda, una vez colocada en posición, sujeta entre Ia brida 43 y el pisador 42 en virtud de Ia presión ejercida por el tornillo 41 , que actúa sobre el pisador 42. En este caso el apriete del borne 4 es de tipo indirecto, pero si se omite el pisador el apriete sería de tipo directo por parte del tornillo 41.The body of the connection block comprises, in its front part, a hole 15 for access to a clamping screw 41 of the terminal 4, which also comprises a flange 43 and a pin 42 embedded in the connection block just in front of the position of the terminal tip 51 (or the end) of the input conductor 5 once inserted into its mouth 12. Said terminal tip 51 is, once placed in position, held between the flange 43 and the trader 42 by virtue of the pressure exerted by the screw 41, which acts on the pisador 42. In this case the tightening of the terminal 4 is of indirect type, but if the pisador is omitted the tightening would be of direct type on the part of the screw 41.
El bloque de conexión comprende, en su parte anterior y adyacente al orificio 15, un orificio o hueco conformador 2, a modo de herramienta para Ia deformación de puntas terminales, de forma aproximadamente troncopiramidal para Ia conformación de Ia punta terminal 31 (en su caso) del conductor de salida 3.The connection block comprises, in its anterior part and adjacent to the hole 15, a forming hole or recess 2, as a tool for the deformation of terminal tips, approximately truncated pyramidal for the conformation of the terminal tip 31 (where appropriate ) of the output conductor 3.
La primera embocadura 12 para el cable de entrada se prolonga interiormente en un alojamiento 17 que presenta, en su contorno anterior, unas aletas 18 en forma de arpón o similar para el bloqueo de Ia punta terminal 51 del conductor de entrada 5, y del propio conductor, en el interior de Ia embocadura 12.The first mouth 12 for the input cable is extended internally in a housing 17 that has, in its previous contour, fins 18 in the form of a harpoon or the like for blocking the terminal tip 51 of the input conductor 5, and of the same conductor, inside the mouth 12.
Alternativamente (figuras 11 y 12), el bloque de conexión comprende una ranura que se intersecta con Ia primera embocadura 12, y una lengüeta extraíble 19 que se introduce en Ia ranura hasta entrar en Ia primera embocadura 12 y se opone al movimiento de retroceso de Ia punta terminal 51 del conductor de entrada 5 hacia fuera de Ia primera embocadura 12.Alternatively (figures 11 and 12), the connection block comprises a slot that intersects the first mouth 12, and a removable tongue 19 that is inserted into the slot until entering the first mouth 12 and opposes the backward movement of The terminal tip 51 of the input conductor 5 out of the first mouth 12.
El extremo de Ia lengüeta 19 que se introduce en Ia primera embocadura 12 tiene forma de "U", de manera que, con Ia lengüeta 19 introducida en Ia primera embocadura 12, los brazos de Ia "U" flanquean el conductor de entrada 5. Dichos brazos son convergentes cerca sus extremos y definen en esa zona un estrechamiento del hueco de Ia "U", con el fin de abrazar el conductor de entrada y sujetarlo mejor. La sección de Ia parte interior de Ia "U" es acorde con Ia del conductor de entrada 5, normalmente circular, para adaptarse mejor al mismo.The end of the tongue 19 that is inserted in the first mouth 12 has a "U" shape, so that, with the tongue 19 inserted in the Ia First mouth 12, the arms of the "U" flank the input conductor 5. Said arms are convergent near their ends and define in that area a narrowing of the hollow of the "U", in order to embrace the input conductor and hold it better. The section of the inner part of the "U" is in accordance with that of the input conductor 5, normally circular, to better adapt to it.
El bloque de conexión está preparado para recibir un conductor de entrada 5 con una punta terminal 51 de sección cuadrada o rectangular, provista de una deformación que impide obstaculizar Ia introducción del conductor de salida 3 en Ia zona de alojamiento 14 del borne 4, situándose dicha punta terminal 51 en Ia parte anterior de dicho alojamiento 14.The connection block is prepared to receive an input conductor 5 with a terminal tip 51 of square or rectangular section, provided with a deformation that prevents impeding the introduction of the output conductor 3 in the housing area 14 of the terminal 4, said location being located terminal tip 51 in the front part of said housing 14.
La segunda embocadura 13, para el conductor de salida 3, está desplazada hacia Ia parte posterior del bloque de conexión, de manera que el extremo anterior de Ia punta terminal 31 del conductor de salida 3 se dispone en Ia parte posterior del alojamiento 14 del borne 4, y queda en contacto inmediato con el extremo adyacente de Ia punta terminal 51 del conductor de entrada 5.The second opening 13, for the output conductor 3, is displaced towards the rear part of the connection block, so that the front end of the terminal tip 31 of the output conductor 3 is arranged at the rear of the housing 14 of the terminal 4, and is in immediate contact with the adjacent end of the terminal tip 51 of the input conductor 5.
La brida o armadura móvil 43 comprende una rosca que se acopla al tornillo 41 , de manera que, al apretar el tornillo, dicha brida aprieta las puntas terminales (o los extremos) de los dos conductores contra el pisador 42 (o directamente contra el tornillo 41 , en su caso).The mobile flange or armature 43 comprises a thread that attaches to the screw 41, so that, when tightening the screw, said flange tightens the terminal tips (or the ends) of the two conductors against the trader 42 (or directly against the screw 41, if applicable).
Aunque en Ia presente memoria sólo se han representado y descrito realizaciones particulares de Ia invención, el experto en Ia materia sabrá introducir modificaciones y sustituir unas características técnicas por otras equivalentes, dependiendo de los requisitos de cada caso, sin separarse del ámbito de protección definido por las reivindicaciones adjuntas.Although only particular embodiments of the invention have been represented and described herein, the person skilled in the art will know how to introduce modifications and replace some technical characteristics with equivalent ones, depending on the requirements of each case, without separating from the scope of protection defined by the attached claims.
Es, por ejemplo, evidente que hasta cierto punto se pueden variar formas o materiales sin que dejen de cumplir los requisitos funcionales de Ia invención. It is, for example, evident that to a certain extent shapes or materials can be varied without ceasing to meet the functional requirements of the invention.

Claims

REIVINDICACIONES
1. Herramienta manual para Ia deformación de puntas terminales de cables eléctricos, caracterizada por el hecho de que comprende un orificio (2) cuya entrada es de mayor sección que Ia de Ia punta terminal a deformar, para Ia introducción holgada en Ia dirección axial de Ia parte anterior de dicha punta terminal, y cuyas paredes son, al menos en un tramo, convergentes hacia el interior del mismo y determinan Ia forma exterior de Ia punta terminal cuando ésta es empujada manualmente dentro del orificio (2).1. Manual tool for the deformation of terminal ends of electric cables, characterized by the fact that it comprises a hole (2) whose entrance is of greater section than that of the terminal tip to be deformed, for the loose introduction in the axial direction of The anterior part of said terminal tip, and whose walls are, at least in one section, convergent towards the interior thereof and determine the outer shape of the terminal tip when it is pushed manually into the hole (2).
2. Herramienta según Ia reivindicación 1 , caracterizada por el hecho de que las paredes del orificio (2) son, al menos en un tramo, gradualmente convergentes hacia el interior del mismo.2. Tool according to claim 1, characterized in that the walls of the hole (2) are, at least in one section, gradually converging towards the interior thereof.
3. Herramienta según Ia reivindicación 1 ó 2, caracterizada por el hecho de que, al menos en un tramo del orificio (2), al menos una de las paredes del orificio es sustancialmente paralela a Ia dirección axial del orificio, mientras que al menos otra de las paredes del orificio es convergente hacia el interior del mismo.3. Tool according to claim 1 or 2, characterized in that, at least in one section of the hole (2), at least one of the walls of the hole is substantially parallel to the axial direction of the hole, while at least another of the walls of the hole is convergent towards the interior of the same.
4. Herramienta según Ia reivindicación 3, caracterizada por el hecho de que las paredes del orificio (2) son, al menos en un tramo, alternativamente convergentes hacia el interior del mismo.4. Tool according to claim 3, characterized in that the walls of the hole (2) are, at least in one section, alternately convergent towards the interior thereof.
5. Herramienta según cualquiera de las reivindicaciones anteriores, caracterizada por el hecho de que el contorno de Ia sección variable del orificio (2) comprende segmentos curvos. 5. Tool according to any of the preceding claims, characterized in that the contour of the variable section of the hole (2) comprises curved segments.
6. Herramienta según cualquiera de las reivindicaciones anteriores, caracterizada por el hecho de que el contorno de Ia sección variable del orificio (2) comprende segmentos rectos.6. Tool according to any of the preceding claims, characterized in that the contour of the variable section of the hole (2) comprises straight segments.
7. Herramienta según cualquiera de las reivindicaciones anteriores, caracterizada por el hecho de que las paredes (22) del orificio (2) definen, al menos en un tramo, un hueco de forma sustancialmente troncopiramidal.7. Tool according to any of the preceding claims, characterized in that the walls (22) of the hole (2) define, at least in one section, a substantially truncated pyramidal hole.
8. Herramienta según cualquiera de las reivindicaciones anteriores, caracterizada por el hecho de que Ia sección de al menos un tramo del orificio (2) es sustancialmente constante. 8. Tool according to any of the preceding claims, characterized in that the section of at least one section of the hole (2) is substantially constant.
9. Bloque de conexión para conductores eléctricos provistos preferentemente de puntas terminales, que comprende un zócalo (11) para su colocación amovible sobre un perfil de soporte, en solitario o conformando una regleta de conexión mediante Ia asociación en paralelo de varios bloques de conexión, una primera embocadura (12) para un conductor de entrada y una segunda embocadura (13) para un conductor de salida, caracterizado por el hecho de que además comprende un único borne de apriete (4) para los extremos de dichos conductores de entrada y salida, de manera que dichas embocaduras primera (12) y segunda (13) están embocadas, en disposición opuesta y desfasada, a dicho borne de apriete (4), el cual comprende un pisador (42) y una brida (43), de manera que, al conectar los dos conductores, los extremos de los mismos quedan superpuestos y bloqueados entre el pisador (42) y Ia brida (43).9. Connection block for electrical conductors preferably provided with terminal tips, comprising a socket (11) for removable placement on a support profile, alone or forming a connection strip by means of the parallel association of several connection blocks, a first mouth (12) for an input conductor and a second mouth (13) for an output conductor, characterized by the fact that it also comprises a single clamping terminal (4) for the ends of said input and output conductors, so that said first (12) and second (13) openings are embedded, in opposite and outdated arrangement, to said clamping terminal (4), the which comprises a treadmill (42) and a flange (43), so that, when connecting the two conductors, the ends thereof are superimposed and locked between the treadmill (42) and the flange (43).
10. Bloque de conexión según Ia reivindicación 9, caracterizado por el hecho de que Ia primera embocadura (12) comprende unas aletas (18) en forma de arpón o similar que impiden Ia salida de Ia punta terminal del conductor de entrada, y por tanto de dicho conductor de entrada, fuera de Ia primera embocadura (12).10. Connection block according to claim 9, characterized in that the first mouth (12) comprises fins (18) in the form of a harpoon or similar that prevent the exit of the terminal tip of the input conductor, and therefore of said input conductor, outside the first mouth (12).
11. Bloque de conexión según Ia reivindicación 9, caracterizado por el hecho de que comprende una ranura que se intersecta con Ia primera embocadura (12), y una lengüeta extraíble (19) que se introduce en Ia ranura hasta entrar en Ia primera embocadura (12) y se opone al movimiento de retroceso de Ia punta terminal del conductor de entrada hacia fuera de Ia primera embocadura (12).11. Connection block according to claim 9, characterized in that it comprises a slot that intersects the first mouth (12), and a removable tongue (19) that is inserted into the slot until entering the first mouth ( 12) and opposes the backward movement of the terminal tip of the input conductor out of the first mouth (12).
12. Bloque de conexión según Ia reivindicación 11 , caracterizado por el hecho de que el extremo de Ia lengüeta (19) que se introduce en Ia primera embocadura (12) tiene forma de "U", de manera que, con Ia lengüeta (19) introducida en Ia primera embocadura (12), los brazos de Ia "U" flanquean el conductor de entrada.12. Connection block according to claim 11, characterized in that the end of the tongue (19) that is inserted into the first mouth (12) has a "U" shape, so that, with the tongue (19 ) introduced in the first mouth (12), the arms of the "U" flank the input conductor.
13. Bloque de conexión según Ia reivindicación 12, caracterizado por el hecho de que, al menos en un tramo, los brazos de Ia "U" convergen para definir un estrechamiento interior.13. Connection block according to claim 12, characterized in that, at least in a section, the arms of the "U" converge to define an inner narrowing.
14. Bloque de conexión según cualquiera de las reivindicaciones 9 a 13, caracterizado por el hecho de que el borne (4) es de apriete indirecto y comprende un tornillo (41 ) accesible desde el exterior del bloque de conexión, de manera que el pisador (42) está fijado en el bloque de conexión y Ia brida (43) y el tornillo (41 ) cooperan para apretar los extremos de los conductores de entrada y salida contra el pisador (42). 14. Connection block according to any one of claims 9 to 13, characterized in that the terminal (4) is indirectly tightened and comprises a screw (41) accessible from outside the connection block, so that the pin (42) is fixed in the connection block and the flange (43) and the screw (41) cooperate to tighten the ends of the input and output conductors against the trader (42).
15. Bloque de conexión según cualquiera de las reivindicaciones 9 a 13, caracterizado por el hecho de que el borne (4) es de apriete directo, de manera que el tornillo (41 , 42) actúa como pisador y ejerce directamente el apriete sobre los extremos de los conductores. 15. Connection block according to any of claims 9 to 13, characterized in that the terminal (4) is directly tightened, so that the screw (41, 42) acts as a treadmill and directly exerts the tightening on the conductor ends.
16. Bloque de conexión según cualquiera de las reivindicaciones 10 a 15, caracterizado por el hecho de que incorpora al menos un segmento del conductor de entrada que está sujeto en Ia primera embocadura (12).16. Connection block according to any of claims 10 to 15, characterized in that it incorporates at least one segment of the input conductor that is attached to the first mouth (12).
17. Bloque de conexión según cualquiera de las reivindicaciones 9 a 15, caracterizado por el hecho de que comprende un orificio (16) cuya entrada es de mayor sección que Ia de una punta terminal que hay que deformar, para Ia introducción holgada en Ia dirección axial de Ia parte anterior de dicha punta terminal, y cuyas paredes definen un hueco de forma sustancial mente troncopiramidal. 17. Connection block according to any of claims 9 to 15, characterized in that it comprises a hole (16) whose entrance is of greater section than that of a terminal tip to be deformed, for the loose introduction in the direction axial of the anterior part of said terminal tip, and whose walls define a substantially truncated pyramidal hollow.
PCT/ES2007/070029 2006-02-10 2007-02-08 Connection block for electrical conductors and hand tool for for deforming the terminal points of electrical cables WO2007090921A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07712572A EP1986274A4 (en) 2006-02-10 2007-02-08 Connection block for electrical conductors and hand tool for for deforming the terminal points of electrical cables

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ESP200600306 2006-02-10
ES200600306A ES2279726B1 (en) 2006-02-10 2006-02-10 MANUAL TOOL FOR THE DEFORMATION OF TERMINAL TIPS OF ELECTRICAL CABLES.
ESP200602080 2006-08-01
ES200602080A ES2291126B1 (en) 2006-08-01 2006-08-01 SIMPLIFIED CONNECTION BLOCK.

Publications (1)

Publication Number Publication Date
WO2007090921A1 true WO2007090921A1 (en) 2007-08-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2007/070029 WO2007090921A1 (en) 2006-02-10 2007-02-08 Connection block for electrical conductors and hand tool for for deforming the terminal points of electrical cables

Country Status (3)

Country Link
EP (1) EP1986274A4 (en)
AR (1) AR059373A1 (en)
WO (1) WO2007090921A1 (en)

Citations (7)

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DE2845532A1 (en) * 1978-10-19 1980-04-24 Weidmueller Kg C Rail-mounted electrical terminals - has single clamping screw holding earth conductor, terminal clamping member and support rail flange
DE4102581A1 (en) * 1991-01-29 1992-08-06 Siemens Ag Series connection terminal for conductors of different dia. - incorporates clamp comprising fixed central body, freely movable clamping element and screw working into sub-divided space
ES2039892T3 (en) * 1988-06-21 1993-10-01 Legrand WIRING ADAPTER AND PROCEDURE FOR ITS TRAINING.
DE4409612A1 (en) * 1993-03-22 1994-09-29 Legrand Sa Electrical device having a connecting terminal and a quick-release nut
ES2105562T3 (en) * 1993-10-01 1997-10-16 Aerospatiale CRIMPING TOOL FOR THE CONNECTION OF AN ELECTRICAL CABLE TO AN END ELEMENT.
EP0820117A1 (en) * 1996-07-18 1998-01-21 Société SYLEA Device for producing a splice
EP1383211A1 (en) * 2002-07-17 2004-01-21 Souriau Method for crimping a contact to strands of a cable

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Publication number Priority date Publication date Assignee Title
DE1913327A1 (en) * 1969-03-15 1970-09-17 Georg Schlegel Elektrotechnisc Combined terminal block with clamping spring and clamping screw
US5775957A (en) * 1996-09-23 1998-07-07 General Motors Corporation Electrical connector
DE19951789A1 (en) * 1999-10-27 2001-05-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Connection terminal
FR2816764B1 (en) * 2000-11-15 2003-08-15 Entrelec Sa CONNECTION DEVICE FOR TWO ELECTRIC CABLES
DE10359621A1 (en) * 2002-12-24 2004-08-05 Sumitomo Wiring Systems, Ltd., Yokkaichi Fuse connector and connection fitting for a connector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845532A1 (en) * 1978-10-19 1980-04-24 Weidmueller Kg C Rail-mounted electrical terminals - has single clamping screw holding earth conductor, terminal clamping member and support rail flange
ES2039892T3 (en) * 1988-06-21 1993-10-01 Legrand WIRING ADAPTER AND PROCEDURE FOR ITS TRAINING.
DE4102581A1 (en) * 1991-01-29 1992-08-06 Siemens Ag Series connection terminal for conductors of different dia. - incorporates clamp comprising fixed central body, freely movable clamping element and screw working into sub-divided space
DE4409612A1 (en) * 1993-03-22 1994-09-29 Legrand Sa Electrical device having a connecting terminal and a quick-release nut
ES2105562T3 (en) * 1993-10-01 1997-10-16 Aerospatiale CRIMPING TOOL FOR THE CONNECTION OF AN ELECTRICAL CABLE TO AN END ELEMENT.
EP0820117A1 (en) * 1996-07-18 1998-01-21 Société SYLEA Device for producing a splice
EP1383211A1 (en) * 2002-07-17 2004-01-21 Souriau Method for crimping a contact to strands of a cable

Also Published As

Publication number Publication date
AR059373A1 (en) 2008-03-26
EP1986274A4 (en) 2010-11-03
EP1986274A1 (en) 2008-10-29

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