RU2208278C2 - Method and device for connecting current- conducting components - Google Patents

Abstract

FIELD: electrical engineering; connecting load conductors to ac and dc lines. SUBSTANCE: for connecting naked current-conducting part of wire its insulated part is additionally clamped between loop ends of spring-type terminal. Device for connecting current- conducting components has spring-type terminal in the form of loop-shaped bent flat clamping spring, U-shaped ground terminal, and common fixing device for both terminals with naked current- conducting part of wire placed inbetween; bends flexible with respect to terminal loop are made in the form of half-cylinders on both ends of spring-type terminal for gripping insulated part of wire. Joint obtained in the process provides for preventing deformation of naked current-conducting part of wire and for reducing mechanical impact on its insulated part. EFFECT: reduced probability of wire breakage. 4 cl, 4 dwg

Description

 The invention relates to electrical engineering, namely to connections of conductive elements, and can be used in shipbuilding, industrial construction, telephony and any industry, for example, in lighting networks for connecting wires or when connecting various consumers to AC and DC networks.

 A known method of connecting conductive elements using screwless contacts that clamp the electrical wire by placing it in the terminal hole and hard clamp the non-insulated current-carrying part of the wire with the terminal contact (see advertisement for terminal connections, Electronic components, 1999, 4, p. 49).

 The disadvantage of this method is the probability of wire breakage during operation due to bending of the insulated part of the wire relative to the non-insulated part of the wire.

Known screwless type-setting clamp for electrical wires, containing an insulating casing and a terminal consisting of a current-carrying element and at least two clamping springs, the insulating casing is made with a cavity for installing the terminal, holes for inputting electric wires and windows with guiding protrusions intended for the input of the tool, the clamping springs are U-shaped, and one of the ends of each clamping spring is bent so that it abuts against the current-carrying element and forms with a longitudinal about Strongly openings for electric wires input angle greater than 90 ^o (cm. Russian patent 2106046, IPC H 01 R 4/24, 4/48, 4/50, publ. 27.02.1998 g).

 A disadvantage of the known screwless clamp is the probability of deformation of the non-insulated conductive part of the wire in the place of its fastening, which leads to mechanical destruction and breakage. And the implementation of the U-shaped clamping spring with two places for connecting the electric wires does not exclude the influence of the clamping force of one of the wires on the other wire during operation, which accelerates the breakage of the current-carrying part of the wire.

 Known screwless connecting clamp containing an electrical conductor, a support bus and a clamping curved tape spring made with a recess through which one of the ends of the spring is passed and an electrical conductor and a support bus are installed lapped, said spring end being adjacent to the support bus, the electrical conductor is sandwiched between the support bus and facing it by the edge of the indicated recess, and the other end of the clamping spring is pointed and bent all the way to the end of the electrical conductor (see RF patent 2065649, publ. 08.20.1996).

 A disadvantage of the known screwless connecting clamp is the probability of deformation of the conductor in the place of its fastening, which leads to mechanical destruction and breakage of the uninsulated part of the conductor.

 Closest to the claimed is a method of connecting conductive elements, implemented in the device for the invention - screwless connection and / or connecting terminal, which consists in connecting the conductive elements by clamping the uninsulated conductive part of the wire between the spring terminal and the mass terminal (see German patent 2706482, IPC N 01 R 4/48, publ. 08/17/1978).

 The disadvantage of this method is the deformation of the wire in the place of its fastening, which leads to its break.

 Of the known devices, the closest in technical essence is a device for connecting electrical wires, consisting of a clamping curved tape spring, made in the form of a loop, at one end of which there is a window for entering the other end of the loop, a mass U-shaped terminal made with the possibility of installation on it a spring terminal, and a common fastening of both terminals, between which an uninsulated conductive part of the wire is placed (see German patent 2706482, IPC H 01 R 4/48, publ. 08/17/1978).

 A disadvantage of the known device is the probability of deformation of the non-insulated conductive part of the wire, which leads to its mechanical destruction and subsequent breakage from the insulated part of the wire.

 The objective of this technical solution is to reduce the likelihood of wire breakage.

 The technical result that can be obtained by carrying out the claimed invention is to prevent deformation of the non-insulated conductive part of the wire and to reduce the mechanical impact on the insulated part of the wire.

 The specified technical result when implementing the method is achieved by the fact that in the method of connecting conductive elements, in which the electrical connection of the non-insulated conductive part of the wire is carried out, it is placed between the spring terminal and the mass terminal, according to the invention, an additional clamp of the insulated part of the wire is placed, while the insulated part is placed wires between the ends of the spring terminal loop.

 The specified technical result in the implementation of the device is achieved by the fact that in the device for connecting conductive elements, consisting of a spring terminal, made in the form of a clamping curved tape spring, made in the form of a loop, at one end of which there is a window for inputting the other end of the loop, the mass terminal П -shaped, made with the possibility of installing a spring terminal on it, and the general fastening of both terminals, between which an uninsulated conductive part of the wire is placed, according to the invention, Bends are formed at both ends of the spring terminal to cover the insulated part of the wire. In this case, the bends are in the form of half-cylinders and are made spring-loaded relative to the terminal loop.

 The execution of both ends of the spring terminals by spring allows you to rigidly fix the insulated part of the wire of various diameters, which reduces the likelihood of wire breakage.

 By performing bends in the form of half-cylinders at both ends of the spring terminal, the insulated part of the wire is rigidly fixed, which prevents the displacement of the insulated part of the wire and the non-insulated current-carrying part of the wire relative to each other, therefore, reduce the clamping force of the non-insulated conductive part of the wire, thereby reducing the mechanical impact on it and therefore reduce the chance of wire breakage.

 In the study of the distinguishing features of the claimed invention did not reveal any known solutions regarding the totality of the signs of the method of connecting conductive elements, which additionally clamp the insulated part of the wire between the ends of the loop of the spring terminal, and also did not reveal any known solutions regarding the set of features of the device for connecting conductive elements, in which at both ends of the spring terminals are formed bends having the shape of half cylinders and covering Suitable insulated conductive portion of the wire, as well as performed with respect to spring hinge spring terminals.

 The claimed combination of features allows to reduce the likelihood of wire breakage by preventing deformation of the non-insulated conductive part of the wire, since the claimed method of connecting the conductive elements and the design of the device for connecting the conductive elements carry out rigid fastening of both the non-insulated part of the wire and the insulated part of the wire, thereby reducing the clamping force of the uninsulated conductive part of the wire.

 The analysis of the prior art, including a search by patent and scientific and technical sources of information, and the identification of sources containing information about analogues of the claimed invention, allowed to establish that no analogue was found, characterized by features identical to all the essential features of the claimed invention.

 Therefore, the claimed invention meets the condition of patentability "novelty."

 The search results for known solutions in data and related fields of technology in order to identify features that match the distinctive features of the prototypes of each of the claimed solutions showed that they do not follow explicitly from the prior art.

 From the prior art determined by the applicant, the influence of the envisaged essential features of each of the claimed inventions on the achievement of the indicated technical result has not been revealed, therefore, each of the claimed solutions meets the patentability condition "inventive step".

 The invention is illustrated by drawings, where figure 1 shows a device for connecting conductive elements, a General view; figure 2 is a General view of the spring terminal, figure 3 is a General view of the mass terminal, figure 4 is a device for connecting conductive elements, side view, a cut in the middle.

 The method is implemented as follows. The mass terminal made with the protrusion for mounting, and the spring terminal made with the hole for mounting, fasten together, in a preferred embodiment of the invention, by flaring. Hand press the spring terminal with your hand from top to bottom, opening a window on one of the ends of the spring terminal, and place the non-insulated conductive part of the wire between both terminals, and at the same time put the insulated part of the wire on the end of the spring terminal, then release the hand, thereby clamping the insulated parts of the wire and uninsulated conductive parts of the wire at the same time. With this fastening, contact is achieved between both terminals with both the insulated part and the non-insulated conductive part of the wire.

 A device for connecting conductive elements contains a mass terminal 1 and a spring terminal 2 (Figs. 1 and 4), rigidly interconnected by means of a protrusion 3 made on the mass terminal 1 (Fig. 3), and an opening 4 made on the spring terminal 2 (FIG. 2), in a preferred embodiment of the invention, by flaring. At the ends of the spring terminals are made bends 5 and 6 in the form of half-cylinders and with the possibility of springing, which is provided due to the execution of the ends of the spring terminals with bends (Fig. 1 and 4). 1 and 4, positions 7 and 8 denote the insulated part and the uninsulated conductive part of the wire, respectively.

 A device for connecting conductive elements works as follows. To connect the electric wire, you need to hand click on the loop of the spring terminal 2 from top to bottom (Figs. 1 and 4) and insert the wire in the space between the bends 5 and 6 of the ends of the spring terminal 2 so that its insulated part 7 is located between the bends 5 and 6 ends of the spring terminal 2, and the non-insulated conductive part of the wire 8 was placed in a window made at one end of the spring terminal between the spring terminal 2 and the mass terminal 1, and then release the hand. The implementation of the bends 5 and 6 at the ends of the spring terminal 2 in the form of half-cylinders allows clamping the insulated part of the wire 7 on its outer surface, which increases the contact area and, therefore, increases the reliability of fixing the wire. And the implementation of the bends 5 and 6 of the ends of the spring terminals 2 spring allows you to clamp wires of various diameters.

 The inventive design of the conductive connection provides a rigid fastening not only of the non-insulated conductive part of the wire, but also of its insulated part due to the implementation of bends at both ends of the spring terminal in the form of half-cylinders. Reliability of fastening of the insulated part and the weakening due to this clamping force of the non-insulated conductive part of the wire prevent the possibility of wire breakage, for example, at point A (Figs. 1 and 4) during operation of the device.

 The inventive device for connecting conductive elements ensures the reliability of the structure by performing bends at the ends of the spring terminals made in the form of half cylinders, increasing the contact area of the insulated part of the wire, and reduces the mechanical effect on the non-insulated current-carrying part of the wire, i.e. reduces the chance of wire breakage.

 This method of connecting the conductive elements, making an electrical connection of the non-insulated conductive part of the wire and clamping the insulated part of the wire, prevents deformation of one part of the wire relative to another, thereby reducing the likelihood of wire breakage.

 Such a conductive connection prevents deformation of one part of the wire relative to another, thereby reducing the likelihood of wire breakage, and also allows you to save installation time and install the conductors quickly and efficiently in any place, thereby ensuring a reliable, vibration-resistant connection and ease of use in various areas of the people households.

 Therefore, the claimed invention meets the condition of patentability "industrial applicability".

Claims (4)

 1. A method of connecting conductive elements, in which the electrical connection of the non-insulated conductive part of the wire is carried out, place it between the spring terminal and the mass terminal, characterized in that it further clamps the insulated part of the wire, while the insulated part of the wire is placed between the ends of the loop of the spring terminal .  2. A device for connecting conductive elements, containing a spring terminal made in the form of a clamping curved tape spring, made in the form of a loop, at one end of which is made a window for entering the other end of the loop, a mass U-shaped terminal made with the possibility of installation on it spring terminal, and the general fastening of both terminals, between which an uninsulated conductive part of the wire is placed, characterized in that at both ends of the spring terminal, bends are formed to cover the insulated part STI wire.  3. The device according to p. 2, characterized in that the bends of the ends are spring-loaded relative to the terminal loop.  4. The device according to p. 2 or 3, characterized in that the limb is made in the form of half cylinders.

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