JP2955138B2 - Ceramic heater mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic heater mounting device, and more particularly to a ceramic heater mounting device suitable for use in a hot air blower.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, a conventional ceramic heater mounting apparatus of this type, for example, a ceramic heater mounting apparatus used for a hot air blower, is formed of a positive characteristic thermistor and a corrugated conductive material. The ceramic heater 1 composed of the radiation fins is attached to
2b is fastened with a screw 3, and the ceramic heater 1 is mounted so as to sandwich the ceramic heater 1 between the mounting base plates 2a and 2b.

In the above configuration, the mounting base plate 2
a and 2b are formed of a resin having a high heat-resistant temperature that can withstand the heat generation temperature of the ceramic heater 1, for example, a PET (polyethylene terephthalate) resin, a PBT (polybutylene terephthalate) resin, or the like.

The ceramic heater 1 mounted on the mounting base plates 2a, 2b is positioned so as to face the air passage opening of the warm air blower.

[0005]

In the conventional ceramic heater mounting apparatus constructed as described above, the mounting base plate for mounting the ceramic heater is made of PET.
Since it is formed of resin, PBT resin, etc., it has poor moldability, requires time for molding, and requires a large unit of material. In addition, the mounting base plate is large as a molded part, has poor dimensional stability, and causes warpage. There is a problem that the cost of the mold is high, screws for fastening the mounting base plate are required, and work efficiency is deteriorated.

[0006]

SUMMARY OF THE INVENTION The ceramic heater mounting apparatus of the present invention solves the above-mentioned problems and includes a mounting body for mounting only both ends of the ceramic heater, and the mounting body has an excessive temperature. Temperature hike as a preventive device
In this configuration, a fuse attachment portion is provided .

[0007]

The present invention has the above-described structure,
It is possible to reduce the shape of the part of the mounting body, improve the moldability of the mounting body, reduce the time required for molding, and reduce the amount of material used and the material cost. In addition, the dimensional stability of the parts can be improved, and the cost of the mold can be reduced. Further, it is possible to eliminate the need for fastening with screws as in the conventional case, thereby improving the efficiency of the mounting operation. Temperature fuse as an over-temperature protection device
Mounting also Ru can be performed extremely easily and reliably.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a ceramic heater mounting apparatus according to the present invention applied to a ceramic heater mounting apparatus used in a hot air blower will be described below with reference to FIGS.

The ceramic heater mounting apparatus of the present invention is provided with mounting bodies 9 and 10 for mounting only both ends 7 and 8 of a ceramic heater 5 comprising a positive temperature coefficient thermistor and a radiating fin of a conductive material formed in a wave shape. Mounting body 9, 1
The mounting part 9a is provided in one of the mounting bodies 9 of the hot air blower 11 by being inserted into the mounting hole 12a of the mounting plate 12 of the hot air blower 11, and the other mounting body 10 is provided with an insertion hole 14 for a screw 13, and One of the attachments 9 of the bodies 9 and 10 is attached to only one end 7 of the ceramic heater 5, and the attachment portion 9 a of the one attachment 9 is inserted into the attachment hole 12 a of the attachment plate 12 to attach the one of the attachments 9. The body 9 is attached to the mounting plate 12, the other mounting body 10 is mounted only on the other end 8 of the ceramic heater 5, and the screw 13 is inserted into the insertion hole 14 of the screw 13 of the other mounting body 10. Then, the other mounting body 10 is attached to the mounting plate 12 by screwing the screws 13 into the screw holes 15 of the mounting plate 11 and tightening, and the ceramic heater 5 is mounted to the hot air blower 11. It was made.

In the above case, the ceramic heater 5 is mounted on the hot air blower by the mounting device so that the blower is located in the air flow path 19 between the suction port 17 and the suction outlet 18 of the hot air blower 11. Mounting plate 1 also used for mounting 20
The ceramic heater 5 is attached by attaching the attachment bodies 9 and 10 to the ceramic heater 5.

In the warm air blower constructed as described above, the air sucked from the air inlet 17 by the air blower 20 is blown to the air blow path 19, passes through the opening 21 of the mounting plate 11, and passes through the ceramic heater 5. The heater is heated by the ceramic heater 5 and blown out from the outlet 18 as warm air.

FIG. 4 shows another embodiment of the apparatus for mounting a ceramic heater according to the present invention, in which mounting sections 23 and 24 for a hot air fuse 22 are provided as a hot air excessive rise prevention apparatus. , 24 are provided on the mounting bodies 9 and 10 such that the hot air fuse 22 is mounted above the ceramic heater 5.

Reference numeral 25 denotes an electrode of the ceramic heater 5.

[0014]

As described above, since the ceramic heater mounting apparatus of the present invention has the above-described structure, it is possible to reduce the size of parts of the mounting body, to improve the moldability of the mounting body, and to perform molding. The time required can be reduced, and the amount of material used is also small, so that the material unit price can be reduced, and further, the dimensional stability of parts can be improved, and the mold cost can be reduced, Furthermore, the conventional fastening with screws can be eliminated,
The mounting work efficiency can be improved.

Further, the attachment of the thermal fuse as the overheating preventing device can be performed very easily and reliably.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of a ceramic heater mounting device according to the present invention.

FIG. 2 is a cross-sectional configuration diagram showing an embodiment of the ceramic heater mounting device of the present invention.

FIG. 3 is a sectional view showing a main part of an embodiment of a device for mounting a ceramic heater according to the present invention, showing an embodiment to a hot air blower.

FIG. 4 is a sectional view showing a main part of another embodiment of the apparatus for mounting a ceramic heater according to the present invention.

FIG. 5 is a partially cutaway plan view showing an embodiment of a conventional ceramic heater mounting device.

FIG. 6 is a cross-sectional view of a relevant part showing an embodiment of a conventional ceramic heater mounting device.

[Description of Signs] 5 Ceramic heater 7, 8 Both ends 9, 10 Mounting body 22 Thermal fuse 23, 24 Mounting part

Claims (2)

(57) [Claims] 1. A ceramic heater comprising a positive temperature coefficient thermistor and radiating fins of a conductive material formed in a wavy shape, comprising a mounting body for mounting only both ends of the ceramic heater, wherein the mounting body is provided as an overheating prevention device. Warmth
A mounting device for a ceramic heater, wherein a mounting portion for a fuse is provided . 2. The method according to claim 1, wherein the thermal fuse is a ceramic heater.
The ceramic heater mounting device according to claim 1, wherein the mounting device is mounted at a position above the ceramic heater.