RU2000676C1 - Process of manufacture of heating device - Google Patents

Abstract

SUBSTANCE: in the manufacture of a zigzag heater from a tape, closed slit-like holes are punched by two alternating groups with different displacements of these groups from the edges of the tape. A portion of the tape is cut along the long edges to the tops of the holes to form a miandra heater. B ill.

Description

The invention relates to the technology of manufacturing heating devices for various industries.

A method of manufacturing a heating device is known, comprising forming slit-like openings in a conductive tape with a predetermined pitch and located at the same distance from the edge of the tape; attaching insulating films to tape; alternately cutting off parts of the electrically conductive tape extending the slit-like openings to the edges of the tape; monolithic obtained resistive element in the outer plates.

However, this method is not technologically advanced and time-consuming in terms of producing a resistive element and, ultimately, a heating device.

The aim of the invention is to simplify the manufacture of a heating device.

The goal is achieved in that in the known method of manufacturing a heating device from an electrically conductive tape with the formation of slit-like openings in it and then attaching insulating films according to the invention to it, the slit-like openings in the electrically conductive tape are made in two alternating groups with different displacement of these groups from the edges tape, and the removable portion of the electrically conductive tape to produce the resistive element is cut along its long sides.

Figures 1-3 show a flowchart for manufacturing a heating device; Fig. 4 is a sectional view of a finally formed heating device; Figures 5 and 6 show an embodiment of a heating device with double-sided overlay of insulating films.

The sequence of manufacture of the heating device is as follows.

Slit-like holes 2 are made in the electrically conductive tape 1 by two alternating groups with different displacements of these groups from the edges of the tape (see Fig. 1). An insulating film 4 is attached to the electrically conductive tape 1 with holes 2 on one (see Fig. 2) or two sides (see Fig. P). When the electrically conductive tape is completely coated with isoption foams, they are pre-attached to the tape conclusions 7 Attaching insulating films to an electrically conductive

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for example, by gluing, heat sealing, both to the electrically conductive tape, and by welding (gluing) the insulating films together in the gaps of the slit-like openings. The electrically conductive tape is cut off with slit-like openings and insulating films attached to it along its long sides along the cutting lines A (see Figs. 1 and 5), parts 3 of the tape are removed to obtain a resistive element 5 with attached insulating films ( see Fig. 3 and 6). Welded leads (not shown) and monolith in the outer plates 6 (see Fig. 4), where a) is the cross section of the heating device when the insulating film 4 is unilaterally connected to the electrically conductive tape, b) when it is double-sided.

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Claims (1)

The claims A method of manufacturing a heating device in which slit-like openings are made across the width of the slit-like element, then cover it with insulating films and cut part of the resistive element closed by insulation along the longitudinal edges to the top of the slit-like opening to obtain a zigzag (meander) forms of the heater, with the exception that the slit-like holes are made in two alternating groups with different displacements of these groups from the edges of the tape, and the removed part is cut along the long sides tapes Fig L , Z / 7  SCHU S47 S Figure 2  v 52 / SZ / SZ Fig 3 2 2 /// L-- -W- G7 / UU7 / Y7 //. / l / /// / / //.  /MEADOW, (pue.J T / S / S //.,  ss /// s /// s / Joint venture fc t a FIG.  -W- //. / l , / /