JPH06168772A - Mounting device for ceramic heater - Google Patents

Abstract

PURPOSE:To enable a mounting body to be made compact, reduce a molding time, a material quantity for use or the like for lowering the unit price of parts, and eliminate a screw for better work efficiency by using the mounting body intended to mount only both ends of a ceramic heater. CONSTITUTION:Mounting bodies 9 and 10 are provided for mounting only both ends 7 and 8 of a ceramic heater 5 made of a positive temperature coefficient thermister and a corrugated radiation fin of conductive material. The mounting section of one mounting body 9 is inserted in the mounting hole of the base plate of a hot air fan or the like, and a screw is inserted in the insertion hole of the other mounting body 10. The screw is coupled to the threaded hole of the base plate and tightened, thereby mounting the heater 5 on the hot air fan or the like. According to this construction, the parts of the bodies 9 and 10 can be made small and also the moldability thereof can be improved. Also, a molding time and a material quantity for use can be reduced, and the cost of a die can be lowered. Furthermore, a conventional tightening method by use of a screw can be eliminated ad mounting work efficiency can be improved.

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 warm air machine.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, a conventional ceramic heater mounting device of this type, for example, a ceramic heater mounting device used in a warm air blower, has a positive temperature coefficient thermistor and a corrugated conductive material. The ceramic heater 1 consisting of the radiation fins of the base plate for mounting the base plate 2a,
2b is fastened with a screw 3, and the ceramic heater 1 is mounted by sandwiching the ceramic heater 1 between the mounting base plates 2a and 2b.

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

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

[0005]

According to the conventional ceramic heater mounting apparatus having the above-mentioned structure, the mounting base plate for mounting the ceramic heater is PET.
Since it is made of resin, PBT resin, etc., it has poor moldability, requires a long time for molding, and is expensive in terms of material units. Moreover, the mounting base plate is large as a molded part and causes poor dimensional stability, which causes warpage. There is a problem that the die cost is high, a screw for fastening the mounting base plate is required, and the work efficiency is deteriorated.

[0006]

SUMMARY OF THE INVENTION The ceramic heater mounting apparatus of the present invention solves the above-mentioned problems, and is configured to have a mounting body for mounting only both ends of the ceramic heater. .

[0007]

The present invention has the above-mentioned structure,
The shape of parts of the mounting body can be reduced, the moldability of the mounting body can be improved, the time required for molding can be shortened, and the amount of material used can be reduced to lower the material unit price. In addition, the dimensional stability of the parts can be improved and the die cost can be reduced. Further, the conventional fastening with screws can be eliminated, and the installation work efficiency can be improved. be able to.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A ceramic heater mounting device according to an embodiment of the present invention 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 end portions 7 and 8 of a ceramic heater 5 composed of a positive temperature coefficient thermistor and a radiation fin made of a corrugated conductive material. Mounting body 9, 1
No. 0 mounting body 9 is provided with a mounting portion 9a for inserting and mounting in the mounting hole 12a of the mounting plate 12 of the warm air fan 11, and the other mounting body 10 is provided with a through hole 14 for a screw 13, One mounting body 9 of the bodies 9 and 10 is mounted only on one end 7 of the ceramic heater 5, and the mounting portion 9a of the one mounting body 9 is inserted into the mounting hole 12a of the mounting plate 12 to mount the one mounting body 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 screw 13 is screwed into the screw hole 15 of the mounting plate 11 and tightened to attach the other mounting body 10 to the mounting plate 12, and the ceramic heater 5 is mounted to the warm air fan 11. It is the one.

In the above case, the ceramic heater 5 is attached to the warm air blower by the attachment device so that it is located in the air blow passage 19 formed between the suction port 17 and the suction port 18 of the warm air blower 11. Mounting plate that doubles as 20
The ceramic heater 5 is attached by attaching the attachments 9 and 10 to the unit 2.

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

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

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

[0014]

Since the ceramic heater mounting apparatus of the present invention is constructed as described above, the shape of the mounting body can be reduced, the mounting body can be improved in moldability, and the mounting body can be molded easily. The time required can be reduced, the unit price of the material can be reduced because the amount of material used is small, and the dimensional stability of parts can be improved, and the die cost can be reduced. Furthermore, it is possible to eliminate the need for conventional screw fastening,
Installation work efficiency can be improved.

Further, the mounting of the temperature fuse as the overheat prevention device can be carried out very easily and surely.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of an attachment device for a ceramic heater of the present invention.

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

FIG. 3 is a cross-sectional configuration diagram of essential parts showing an embodiment of a warm air blower showing an embodiment of the attachment device of the ceramic heater of the present invention.

FIG. 4 is a cross-sectional configuration diagram of a main part showing another embodiment of the attachment device of the ceramic heater of 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 configuration diagram of essential parts showing an embodiment of a conventional ceramic heater mounting device.

[Explanation of symbols]

 5 Ceramic heater 7,8 Both ends 9,10 Mounting body 22 Thermal fuse 23,24 Mounting portion

Claims (2)

[Claims] 1. A ceramic heater comprising a positive temperature coefficient thermistor and a radiating fin made of a conductive material formed in a wave shape, comprising a mounting body for mounting only both ends of the ceramic heater. apparatus. 2. The mounting device for a ceramic heater according to claim 1, wherein the mounting body is provided with a mounting portion for a thermal fuse as a device for preventing excessive temperature rise.