RU168397U1 - VOLTAGE DIVIDER WITH THREE-DIMENSIONAL GRID STRUCTURE OF HIGH VOLTAGE SHOULDER - Google Patents

Abstract

The device relates to voltage dividers. The technical result is to reduce the mass, material consumption of the voltage divider and increase the resistance of the divider to vibrations. The proposed divider contains a high voltage arm connected to the high voltage electrode of the divider on the one hand and to the measuring output of the divider on the other hand. In this case, the high-voltage arm of the divider is made in the form of a three-dimensional mesh structure consisting of straight elastic ribs, including those made of a material conducting electric current. Ribs of conductive material are connected at the nodes of the grid, forming a resistive circuit. Part of the edges of the mesh can also be made of a non-conductive electric current (dielectric) material, representing an additional forming element, providing additional mechanical strength of the mesh. 3 s.p. f-ly, 3 ill.

Description

FIELD OF TECHNOLOGY

The utility model relates to voltage dividers.

BACKGROUND

Various designs and methods for manufacturing voltage dividers are known.

For example, a known method of manufacturing a voltage divider based on the resistive element of the high voltage arm of the divider in the form of a homogeneous conductive medium uniformly filling the space between the high voltage electrode and the electrode galvanically connected to the common point of the divider [1]. In the above method, a resistive element in the form of a uniform resistive composition with a finite solid phase fills the space inside the grounded electrostatic shield, which also contains high-voltage and low-voltage (connected to the common point of the divider) electrodes. The disadvantage of the divider, implemented in accordance with the above method, is the high material consumption (in particular, the use of a large number of resistive element) of the divider.

Known resistive voltage divider [2], containing series-connected first and second resistor, where each of these resistors is made in the form of a set of tracks of resistive film material deposited on an insulating cylindrical base by direct printing.

Dividers are also known in which the high-voltage arm is made in the form of paths or layers of resistive material deposited on an insulating base using thick-film technologies. These dividers include, for example, high voltage voltage dividers from the manufacturer Nicrom Electronic (Switzerland), including high voltage voltage dividers 300 and 600 series [3].

Dividers are also known in which the high voltage arm is in the form of a wire resistor wound around a cylindrical insulating base. These divisors include, for example, the divisor [4]. The divider [4] is selected as a prototype of a utility model.

A common drawback of dividers [2] - [4] is the use of structural elements of insulating bases (cases, substrates, etc.), which gives the divider high material consumption.

DISCLOSURE OF A USEFUL MODEL

The technical result of the application of the utility model is to reduce the mass, material consumption of the voltage divider and increase the resistance of the voltage divider to vibration.

The proposed voltage divider comprises a high voltage arm connected to the high voltage electrode of the divider on the one hand and to the measuring output of the divider on the other hand. In this case, unlike the prototype, in the proposed voltage divider, the high-voltage arm is made in the form of a three-dimensional mesh structure, consisting of straight elastic ribs from a material conducting electric current. In this case, the conductive ribs are connected at the nodes of the grid, forming a continuous resistive circuit of the high voltage arm of the divider.

Achieving the claimed technical result is ensured by the following factors:

- unlike the prototype and other analogues, the high-voltage part of the divider does not contain form-forming structural elements. To support the form, self-supporting ribs are used, which allows to reduce the mass and material consumption of the divider;

- a mesh of elastic ribs representing the high voltage arm of the divider provides damping of the applied external vibrations, since the ribs of the mesh have the ability to elastically deform. In this regard, a greater resistance of the divider to vibrations is achieved in comparison with analogues.

In the particular case, the additional presence of elastic ribs from a non-conductive electric current (dielectric) material in the high-voltage arm of the divider is allowed. These ribs of non-conductive material are connected at the nodes of the mesh with the ribs of the conductive material and with each other, representing a forming element, giving the mesh additional mechanical strength and, thus, increasing the resistance of the divider to vibration. At the same time, a certain number of these ribs of non-conductive material, additionally introduced into the grid design, can, with a slight increase in the material consumption of the divider (in terms of the expenditure of non-conductive material), significantly increase the resistance of the divider to vibrations.

In another particular case of the utility model, the elastic edges of the mesh may be hollow tubes. This provides an additional reduction in mass and material consumption of the divider.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows a particular example of the high-voltage arm of the claimed divider in the form of a three-dimensional grid, a view with a three-dimensional perspective.

Figure 2 shows a particular example of the high-voltage shoulder of the claimed divider in the form of a three-dimensional grid, side view.

Figure 3 shows a particular example of a high-voltage shoulder of the claimed divider in the form of a three-dimensional grid, top view.

IMPLEMENTATION OF A USEFUL MODEL

In an embodiment of the utility model, the high-voltage arm of the divider in the form of an elastic grid can be made in such a way (see Fig. 1 and Fig. 2) that the edges of the grid form vertical flat hexagons that are symmetrical about the vertical axis passing through the diagonal of the hexagon. Moreover, in the horizontal section, the above hexagons form regular quadrangles (see Fig. 3).

The high voltage arm divider in the above embodiment of the utility model can be obtained by 3D printing. Moreover, in the particular case when the presence of non-conductive (dielectric) mesh edges is allowed, simultaneous printing with two materials can be used to manufacture the high-voltage arm of the divider. In this case, respectively, the ribs included in the resistive circuit are printed with a conductive material, and the ribs providing support are printed with a dielectric material.

Information sources

1. USSR author's certificate for the invention No. 1167509 (07.15.1985. Bull. No. 26).

2. US Patent No. US 9299484 (“Resistive structure and resistive voltage divider arrangement”, 3/2016, Hozoi et al.).

3. Electronic catalog “High Performance Thick Film Resistors. GENERAL CATALOG 2004 ”on the manufacturer’s website Nicrom Electronic (www.nicrom-electronic.com).

4. USSR author's certificate for the invention No. 1104441 (07.23.1984. Bull. No. 27).

Claims (5)

1. A voltage divider including a high-voltage arm connected to a high-voltage electrode of the divider on the one hand and to the measuring output of the divider on the other, characterized in that the high-voltage arm is made in the form of a three-dimensional mesh structure consisting of straight elastic ribs made of conductive material, and the ribs of the conductive material are connected at the nodes of the grid and form a resistive circuit of the high voltage arm. 2. The divider according to claim 1, characterized in that the ribs are hollow tubes. 3. The divider according to claim 1, characterized in that the grid contains ribs made of a dielectric. 4. The divider according to claim 1, characterized in that the ribs are oriented in such a way that they form flat vertical hexagons having a vertical axis of symmetry passing through the diagonal.

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