JPS6033592Y2 - heating element device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heating element device comprising a plurality of plate-shaped resistors such as positive temperature coefficient thermistors and carbon resistors arranged in parallel.

Conventionally, such a heating element device has been constructed as shown in FIG.

In other words, a pair of terminal plates 1 arranged to face each other,
A plurality of through holes 3, 3 and 4, 4 are provided at opposing positions of the two, respectively, and electrodes 5 are provided at both ends of these through holes.
, 6 are attached to a plurality of plate-shaped resistors 7, 7,
The electrodes 5 and 6 and the terminal plates 1 and 2 are respectively.

It is made by soldering 8.

However, in such a conventional heating element device, there is unavoidable variation in the thickness of the resistors 7 due to the manufacturing process, so the thickness of the resistor is larger than the width of the through hole of the terminal plate 1.2. If it is thick, it will be impossible to install it in the through hole,
On the other hand, when the resistor is thin, gaps are created when the resistor is inserted into the through hole, making the resistor unstable, and the assembly of the heating element device becomes complicated.

The present invention has been made in view of these points, and it is an object of the present invention to provide an easy-to-assemble heating element device that can be reliably attached to the through hole of a terminal board even if there is some variation in the thickness of the resistor. This is the purpose.

An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIGS. 2 and 3, reference numerals 11 and 12 indicate a pair of terminal plates that are arranged facing each other on one plane, and are provided with a predetermined distance therebetween.

As a means of maintaining this predetermined spacing, for example, each terminal board may be fixed to another device, or both ends of each terminal board may be connected with a connecting rod. It is not particularly limited.

13, 13, 14゜14 are a plurality of notches provided at one end of the terminal plate 11 and 12 facing each other at a predetermined interval, and the bottoms of these notches The tongue pieces 15, 15, 16, and 16 curved on the plane of the terminal plate 11 and 12 are respectively provided integrally with the terminal plate.

That is, these notches 13, 14 and tongues 15.
16 can be formed at the same time by providing a cut-and-raised portion A on one end side of the terminal plates 11 and 12, as shown in FIG. 4, for example.

The above notch is formed wider than the maximum value of the variation in thickness of the resistor mounted here, and the spacing between the tongues 15 and 16 of the opposing terminal board is set to the width when no resistor is mounted. It is formed to be smaller than the length of the resistor.

In other words, when the resistor is inserted into the notch, the tongues 15 and 16 elastically press the resistor in the length direction.

Reference numeral 17.17 denotes a plate-shaped resistor such as a positive temperature coefficient thermistor or a carbon resistor mounted in each of the opposing notches 13.14 of the terminal plate 11.12, and electrodes are provided at least near both ends of the resistor. 18 and 19 are respectively attached, and the ends of the resistors 17 and 17 to which these electrodes are attached are elastically sandwiched between the tongue pieces 15 and 16, and the electrode parts and the terminal plate are electrically connected. It is.

In addition, these electrode parts and the terminal board can also be fixed with solder etc. as needed.

Further, the electrodes provided on the resistor 17.17 are connected to the terminal plate 11.
It is also possible to apply it after attaching it to the 12 notches.

The heating element device configured as described above includes a pair of terminal plates 1
1. For fluid heating, by applying a predetermined voltage between 12 and 12, each resistor 17 and 17 generate heat, causing fluid such as air or liquid to be mixed between these resistors and heating the fluid. It becomes useful as a thing.

As explained above, in the heating element device of the present invention, the notch provided in the terminal board is formed wider than the thickness of the resistor to be attached thereto, and the tongue piece provided at the bottom of the notch allows the resistor to be Since the resistor is mounted by being elastically pressed in the length direction, all the resistors can be mounted without any problem even if the thickness of the resistor varies, making the assembly extremely easy.

In addition, even if there is variation in the length direction of the resistor, since the tongue pieces are elastically pressed in the length direction, some variations can be absorbed by the tongue pieces. Even when fixing the resistor to the plate with solder or the like, since the resistor is held elastically, it will not fall off, making the fixing work extremely easy.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of a conventional heating element device, Fig. 2 is a cross-sectional plan view of essential parts of a heating element device according to an embodiment of the present invention, and Fig. 3 is a longitudinal sectional view of a heating element device according to an embodiment of the present invention. The side view and FIG. 4 are partial perspective views for explaining one means for forming notches and tongue pieces on the terminal board. 11.12...Terminal board, 13,14...
・Notch, 15.16... tongue piece, 17...
...Resistor, 18.19... Electrode.

Claims (1)

[Scope of utility model registration request] A pair of terminal boards each having a plurality of notches at a predetermined interval on one end side are arranged on one plane such that the notches face each other, and the oppositely facing cuts of the terminal boards A heating element device in which a plate-shaped resistor having a pair of electrodes at least near both ends is attached to each of the notches so that the electrode portion and the terminal plate are electrically connected, the heating element device comprising: The notches are formed to be wider than the thickness of the resistor, and tongue pieces curved out of the plane of the terminal plate are formed integrally with the terminal plate at the bottoms of the notches, and the resistor is formed with the opposing notches. A heating element device, characterized in that the heating element device is elastically held by the tongue piece of the notch and is attached to the notch.