SU831880A1 - Current guiding device - Google Patents

Description

(54) CURRENT-SUPPORTING DEVICE

one

The invention relates to current-carrying devices with periodic disconnection of an electrical contact and can be used, in particular, in the field of electroplating, as a current-carrying device for electroplating baths.

The closest to the proposed in its technical essence and the achieved result is a current-carrying device containing a current-carrying busbar and a current-carrying vessel in the form of a container with spherical bodies and equipped with a contact element located on the current-carrying tire and made in the form of a pipe with spherical grooves, the container is made in the form of a glass with vertical slots along the perimeter 1.

However, in the known device, the spherical bodies are arranged randomly, in bulk and, having a round shape, are in contact with the contact element, the electrical power supply and among themselves point by point, which increases the resistance of the electrical power supply. When current is transmitted through such a current-carrying device, the contact bodies are heated. At the same time, the device occupies a limited number of positions in space due to the danger of spherical bodies precipitating out, which limits its scope. In addition, a change in the resistance of the electrical power supply due to the heating of the spherical bodies leads to destabilization of the electrical parameters, which adversely affects the technological processes and can cause rejection when electroplating is applied.

The purpose of the invention is to increase the reliability of the device and expand its functionality.

Claims (1)

The goal is achieved by the fact that a current-carrying device containing a current-supply bus with a contact element, current-leads and a capacitance with an electrically conductive medium is equipped with an electromagnet fixed to the walls of the capacitor, the current-leads are located between opposite magnetic poles perpendicular to the magnetic field and a electrically conductive medium It is a metallized ferromagnetic powder placed between the current leads. In this case, the ferromagnetic powder is coated with a layer of copper, aluminum, silver or another metal with high electrical conductivity. FIG. i shows the proposed device using a permanent magician, yarns, general view; in fig. 2 - device using an electromagnet, general view; in fig. 3 shows section A-A in FIG. 1. The current lead device consists of a current lead bus 1 with a contact element 2 made in the form of a pin or plate with a pointed end, a capacitor 3 mounted through insulator 4 on the support 5, an electromagnet 6 or permanent magnets 7 are fixed on the walls of the capacitor 3 Current conductors 8 are placed between the opposite poles of magnets 6 or 7 perpendicular to the power lines of the magnetic field, between which the ferromagnetic powder is placed 9. whose particles are covered with a layer of metal with high electrical conductivity (copper, aluminum, silver, etc.). When this contact element 2 is immersed in a ferromagnetic powder 9 between the poles of the magnets. The device operates as follows. When a current-carrying device is installed, for example, on a galvanic bath, the supply of voltage to the current leads 8 and the contact element 2 is interrupted when the latter is lowered into powder 9 or lifted from a powder in order to avoid sparking, which adversely affects the quality of the electroplated coating. Particles of ferromagnetic powder 9 are located along the magnetic field lines generated by electromagnet 6 or permanent magnets 7. This forms a kind of conductor of particles of ferromagnetic powder 9, directed perpendicular to the surface of the current leads 8. In a magnetic field, the particles are located between the current leads 8 of the contact magnet. mass and held by this field in this state regardless of the position of the device in space. The contact element 2 is made mainly of electrical copper or aluminum, which do not interfere with the passage of magnetic flux through them, therefore, when the contact element 2 is lowered into the ferromagnetic powder 9, the nature of the latter in a magnetic field does not change, but only its compression and durable occurs. pressing to the surface of both the contact element 2 and the current leads 8. The current is transferred from the contact element 2 to the current leads 8 or vice versa by means of ferromagnetic powder 9, to the particles of which A layer of metal with high electrical conductivity (copper, aluminum, silver, etc.) is needed to reduce the resistance losses. The use of ferromagnetic powder, particles of which are coated with a metal with high electrical conductivity and which is placed in a magnetic field as a medium. Transmitting current from one current-carrying element to another allows reducing electrical losses, since the contact area of such a medium with current leads is much larger than in known devices, and current transfer occurs as though through conductors, and not through randomly located spherical bodies. In addition, this design of the current-carrying device increases its reliability and allows it to be used not only for galvanic baths, but also in other electrical devices where it is necessary to periodically open the current-transmitting elements, which greatly expands the functionality of this device. Claims The current lead device comprising a current lead bus with a contact element, current leads and a capacitance with an electrically conductive medium, characterized in that, in order to increase the reliability of the device and extend its functionality, it is equipped with an electromagnet mounted on the vessel walls, the current leads are located between the opposite magnetic poles perpendicular to the power lines of the magnetic field, and the electrically conductive medium is a metallized ferromagnetic powder, placed ny between the current leads. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 632759, cl. C 25 D 17/14, 1977. t 5 3 FIG. one FIG. 2