JPH0733926Y2 - Electric heater mounting device for vehicle heater - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric heating element mounting device for a vehicle heater which is disposed under a seat or a side wall of a vehicle.

[0002]

2. Description of the Related Art A conventional heating device mounting apparatus for a vehicle heater has a structure as shown in FIGS. In the figure, 8 is an electric heating element, which is a sheathed heater of a stainless steel tube or an alloy tube, or other electric heating element equipped with a metal tube.
9 is a heater pressing metal A, 10 is a packing, and ceramic fibers are used. Reference numeral 11 is a heater pressing member B, and 12 is a secondary insulator made of porcelain. 13 is a box of the heater body. The electric heating element 8 is sandwiched by bolts and nuts 14 by heater pressing hardwares A9 and B11 via a packing 10 having a constant width, and is fixed to a secondary insulator 12 by bolts and nuts 15. The secondary insulator 12 is directly fixed to the box body of the heater body 13 with bolts and nuts 16.

[0003]

SUMMARY OF THE INVENTION As described above, the conventional electric heating body mounting device is used as a heater pressing member A especially for vehicles.
9, B11 and the secondary insulator 12 respectively bolt nut 1
The bolts and nuts 16 were used to fix it to the heater itself, as well as fixing it with 4 and 15. Further, the electric heating body 8 is insulated by the packing 10 having a constant width, so that the safety and durability associated with the operation of the vehicle are strengthened. However, although it is for strengthening safety, the insulating packing 10 is wrapped with a certain width around the sandwiching part of the electric heating element itself, because the labor of tightening with the bolt nuts 14, 15, 16 is large and the material cost is high. There was a problem that the heat radiating property in this part was poor and it caused an early disconnection due to overheating.

The object of the present invention is to solve the above-mentioned problems and to secure the safety by directly mounting it on the box of the heater, and at the same time, to mount the electric heater on the heater of the vehicle for easy replacement work. Is to provide.

[0005]

In order to achieve the above object, the present invention provides a heater provided under a seat of a vehicle or the like, in which a metal tube-equipped electric heating element is supported at a plurality of locations and a heater body is provided. A porcelain insulator for secondary insulation that is directly attached to the machine is provided with supporting holes that expand outward from the central ring-shaped supporting ring part to both sides, and the central supporting ring part of this supporting hole is made of metal. An electric heating element attachment device for a vehicle heater, which is clamped and fixed by bolts and nuts in a state of being in line contact with the outer circumference of a tube electric heating element.

[0006]

The electric heating element is directly sandwiched by the secondary insulators at a plurality of points in the main body, and at the same time, is fixed to the main body of the heater by bolts and nuts. Further, the electric heating body is sandwiched by the supporting ring portion from the outer periphery by line contact, and both sides thereof are expanded outward, so that the heat from the electric heating body is surely dissipated. Furthermore, there are few places to pinch and fix with bolts and nuts, and it is easy to assemble and replace.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment will be described below with reference to the drawings. Fig. 1 is a partially peeled front view showing a main part, 1 is a main body of a heater, 2 is a front cover plate, 3 is an electric heating element, and a sheathed heater made of stainless steel pipe or an alloy pipe is used, etc. It is a metal tube electric heating element. Reference numeral 4 denotes a secondary insulator, which has a split structure so that the electric heating element 3 can be easily held. Reference numeral 5 is a support hole, the center of which is a ring-shaped support ring portion 6, and both sides thereof are expanded outward. Reference numeral 7 denotes a bolt and nut, which sandwiches the secondary insulator 4 in the support hole 5 and at the same time clamps and fixes it to the main body 1 of the heater.

It should be noted that a peg-shaped support hole is formed in advance in the secondary insulator, and two parallel electric heating elements are obliquely inserted into the support hole of the secondary insulator along the inclination, and sandwiched and fixed. It is also possible to load the secondary insulator so that it is clamped and fixed by the central support ring portion by returning the secondary insulator from the diagonal position to the original position.

[0009]

EFFECTS OF THE INVENTION Since the present invention has the above-mentioned structure, the electric heating element is sandwiched by the secondary insulator and is fixed to the heater body at the same time, so that the electric heating element can be stably used as a vehicle heater. Became. The support hole of the secondary insulator holding the electric heating element has a ring-shaped support ring portion in the center,
At this part, the electric heating element is clamped by wire contact and sandwiched, and both sides of the electric heating element are expanded outwards, so the heat dissipation effect is good without overheating and the durability of the electric heating element is improved. be able to.

[Brief description of drawings]

[Figure 1] Front view of the main part of the heater

[Fig. 2] Side view of the main part

FIG. 3 is a plan view showing the main part of the present invention in an enlarged manner and partially peeled off.

FIG. 4 is a side view of the same.

FIG. 5 is an enlarged plan view of an essential part showing a conventional example.

FIG. 6 is a side view of the conventional example.

FIG. 7 is a half-cut sectional view of the conventional example.

[Explanation of symbols]

 1 Main body of heater 3 Electric heating element 4 Secondary insulator 5 Support hole 6 Support ring 7 Bolt nut

Claims (1)

[Scope of utility model registration request] 1. In a heater arranged under a seat of a vehicle or the like, a porcelain insulator for secondary insulation, which supports metal tube electric heating bodies at a plurality of points and is directly attached to a main body of the heater, has a central portion. From the ring-shaped support ring part of each of the support holes of the shape that expands outwards to each side are provided. An electric-heater mounting device for a vehicle heater, which is characterized by being sandwiched and fixed.