JPS59708Y2 - Heating element support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating element support device that provides improved electrical safety and can be easily constructed.

Conventionally, in electric heaters that radiate radiant heat by attaching a heating element made of a glass tube such as a quartz tube with heating wires sealed in front of a reflector plate, the end of the quartz tube is used as a support device for the heating element. A support stand formed with an arc-shaped part for supporting the heating wire, and a terminal block for connecting the lead part of the heating wire led out from the end part to the external lead wire were each separately provided.

Therefore, the structure is complicated, and there are disadvantages in terms of workability and poor electrical safety.

The present invention was made to eliminate the above-mentioned drawbacks, and the heating element is placed in a space formed by a pair of support members each having an arc-shaped portion on which the heating element is placed, and a support piece formed on each of the support members. Connection between the led-out node part and the external lead wire is made using a crimp terminal located in the above-mentioned space, and an insulating support plate is provided to cover the space. An object of the present invention is to provide a support device for a heating element that improves electrical safety.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, details of the present invention will be explained with reference to the drawings for one embodiment.

Reference numerals 1 and 1' refer to a pair of support members, and one of the support members 1 includes joint pieces 2, 2, a semicircular arc-shaped portion 3 formed in the middle of these joint pieces, and a semicircular arc portion 3 that extends laterally integrally with the joint pieces 2 and 2. It has a support piece 5 which has a retaining part 4, for example, with a through hole bored at its tip.

The other support member 1' is similarly formed and assembled by overlapping the joining pieces 2, 2' so that the respective arcuate portions 3', 3' and support pieces 5, 5' are disposed opposite to each other.

Reference numeral 6 denotes a heat-resistant quartz glass tube, inside of which a heating wire 7 is sealed, and a lead portion 7' of this heating wire 7 is led out through a hole 9 of an insulator 8 that closes the end of the glass tube 6. .

The glass tube 6 is held between the opposing arcuate portions 3 and 3' of the support members 1 and 1' with a cushioning material 10 made of heat-resistant asbestos or the like interposed therebetween.

Reference numeral 11 denotes a crimp terminal, which includes a lead portion 7' and this lead portion 7'.
Crimp and fix the external lead wire 12 connected to the support 5,
It is located in the space 13 formed by 5'.

Reference numeral 14 is an insulating support plate formed in a circular shape, and has upper and lower ears 15, 15 that are engaged with engaging portions 4.4' of the support pieces 5, 5', and an external lead wire 12 in the central hole 16. is inserted so as to cover the space 13.

17.17 is a through hole for attaching a fixing screw. Next, the assembly procedure will be described.

First, the cushioning material 10 is inserted into the arcuate portion 3 of one support member 1, then the end of the glass tube 6 is placed, and the upper end cushioning material 10 is wrapped around this end, and then the other support member 1' are fitted, and each support member 1, 1' is fixed with a screw or the like through the through hole 17 of the joining piece 2, 2'.

Further, the lead portion 7' led out from the glass tube 6 and an external lead wire 12, such as a power wire, which has been inserted in advance through the center hole 16 of the insulating support plate 14, are connected and fixed in the space 13 with the crimp terminal 11. .

Then, the ears 15, 15 of the support plate 14 may be fitted into the retaining portions 4, 4' of the support pieces 5, 5', respectively.

As described in detail above, the present invention includes a pair of supporting members each having an arcuate portion and a support piece, each of which is disposed opposite to each other, and a glass tube sealed with a heating wire that is held between the arcuate portions via a heat-resistant cushioning material. , a crimp terminal for connecting the lead part of the heating wire to the heating element led out to the space formed between the support pieces, the lead part of the heating wire and the external lead wire, and a crimp terminal that is engaged with and connected to the support piece. Since the heating element support device is equipped with an insulating support plate that prevents the external lead wires from being pulled out, there is no need to provide a separate terminal block as in the conventional case, which improves work efficiency.

Further, even if the diameter of the glass tube varies, since it is attached to the support member via the cushioning material, its fixation can be ensured.

Furthermore, the insulating support plate is attached to cover the space, and even if force is applied to the crimp terminal in the pulling direction, it supports it, prevents the external lead wire from coming off, and secures the insulation distance from the mounting equipment. This has the particular advantage of improving electrical safety.

[Brief explanation of drawings]

The figures show one embodiment of the device, with Figure 1 being a perspective view of the main parts and Figure 2 being a perspective view of the main parts.
The figure is also a sectional view. 1.1'...Support member, 3,3'...
Arc-shaped part, 4,4'... Retaining part, 5.5'...
...Support piece, 6...Glass tube, 7...
・Heating wire, 7'...Lead part, 10...
・Heat-resistant cushioning material, 11...Crimp terminal, 12...
...External lead wire, 13... Space part, 14
...Insulating support plate.

Claims (1)

[Scope of utility model registration request] a pair of supporting members each having an arcuate portion and a support piece extending to the side of the arcuate portion and having a retaining portion at the distal end thereof, the arcuate portion and the support piece being disposed opposite to each other; a heating element having a glass tube sandwiched between the parts with a heat-resistant buffer material interposed therebetween, and a lead part of a heating wire sealed inside the glass tube led out to a space formed between the support pieces; a crimp terminal located in the space and connecting an external lead wire to the lead portion; and an insulating support that is latched to the retaining portion and covers the space and prevents the connected external lead wire from being pulled out. A support device for a heating element, comprising: