JPS5816566Y2 - electric heating machine - Google Patents

Description

[Detailed description of the invention] This invention is equipped with a rotating reflector having a substantially arc-shaped cross section that rotates around the outer circumference of the heater, and the heat radiation direction of the heater can be changed by operating the rotating reflector. This relates to an electric heater, and the shaft support of the rotating reflector has been improved to improve assembly work, operation, and longevity.

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

Figure 1 shows the appearance of this electric heater, Figure 2 shows the appearance of a partially disassembled state, Figure 3 shows the state in which radiant heating is mainly performed, and Figure 4 mainly shows the state in which radiant heating is performed. This shows the state in which wind heating is being performed.

In the figure, 1 is the main case, which includes a main case plate 2 which is made by bending a metal plate to form the upper front edge, top surface, rear surface, bottom surface, and lower front edge, and a pair of metal plates attached to the left and right sides of the main case plate 2. The front side plate 3 is made of a metal plate, and most of the front side except the upper and lower ends are open.

Furthermore, legs 4 made of synthetic resin are attached to both left and right ends of the bottom of the main body case 1, respectively.

Reference numeral 5 denotes a fixed reflector unit installed in the front opening of the main body case 1, which is a combination of a front reflector 6 and left and right side reflectors 7.

The front reflecting plate 6 consists of a front face 8 and a bottom face 9 that are connected in an abbreviated shape.The front face 8 rises upward from the lower end and curves toward the front side, and the upper end is the upper end of the front opening of the main body case 1. mounted on.

The bottom surface 9 has a rear end close to the back surface of the main case 1 so as to partition the inside of the main case 1 into upper and lower parts, and an outer end thereof is attached to the lower end of the front opening of the main case 1.

The left and right side reflectors 1 and 7 have shapes corresponding to the front reflector 6 described above, and are attached to the left and right sides of the front reflector 6.

10 is a fixed reflector unit 1
'Li Two rod-shaped beams are placed in the internal space of the T-knit 5 and are hung horizontally in parallel between the side reflectors 7.7, and are made of, for example, a quartz tube heater.

Reference numeral 11 denotes a rotary reflector unit that is rotatably mounted on each heater 10, and includes a rotary reflector 12 in the shape of a curved band that is curved along a part of the outer periphery of the heater 10 at an appropriate distance from the heater 10; It consists of a pair of circular end reflectors 13 attached to the left and right sides of the plate 12.

In order to rotate the rotary reflector unit 11, one side plate 3 is equipped with a rotary knob 14. When the rotary knob 14 is turned, a rotational force is applied via the knob shaft 15 and the connecting piece 16 to the rotary member. This is transmitted to the company plate unit 11, and the rotating reflector unit 11 rotates around the rod-shaped heater 10.

The connecting piece 1″6h extends from one end attached to the knob shaft 15 to the radius of the knob shaft, and then the rotating reflector unit 12
It consists of a metal fitting with an L-shaped opening perpendicular to the end face reflecting plate 13, and is rotated by rotation of the knob shaft 15.

The connecting piece 16 passes through an arcuate guide hole 17 provided in the side reflector 7, and its tip is inserted into a connecting hole provided in the end reflector 13 of the rotary reflector unit 11.

Therefore, the connecting piece 16 can only rotate within the angular range in which it moves from one end of the guide elongated hole 17 to the other, and at one end, the rotating reflector 12 is located behind the heater 10 as shown in FIG. At the other end, the rotating reflector plate 12 is located in front of the heater 11, as shown in FIG.

A display section 18 for displaying the position of the rotary reflecting plate 12 is provided on the outer periphery of the rotary knob 14.

As shown in FIGS. 3 and 4, no matter where the rotating reflector 12 is located, there is an appropriate space 19 (hereinafter referred to as the aerofand space) between the rotating reflector 12 and the front of the front reflector 6. ), and a ventilation hole 20 is provided in a part of the bottom surface 9 below the space 19, and this ventilation hole 2
0 is provided with a wire mesh to prevent foreign matter from being inserted into the space below.

21 is a blower installed in the space below the ventilation opening 20, and is composed of a motor 22 and a propeller fan 23. The motor 22 is placed downward so that the motor axis is vertical, and the fan 2
It is connected with 3 facing upward.

Therefore, the wear of the bearing of the motor 22 becomes uniform, and the life of the motor 22 becomes longer.

Air from the blower 21 passes through the ventilation opening 20, passes through the ventilation space 19 between the front reflecting plate 6 and the rotary reflecting plate 12, and is discharged forward while following the curved surface of the upper part of the front reflecting plate 6.

In addition, in order to reduce the amount of air leaking between the rotating reflectors 12 and the bottom surface 9 of the front reflector 6 and the lower rotating reflector 12, the gap is designed to be small. ing.

A suction port 24'' is provided at the bottom of the main body case 1, and suction ports 25 and 26 are provided at the upper and lower lips of the back surface.

The front reflector plate 6 reflects the heat from the heater 10 forward and serves to prevent the temperature of the main body case 1 and its internal space from rising.

Furthermore, by operating the blower 21, the suction port 24.26.2
The air sucked in from 6 cools the main body case 1 and its internal space.

Therefore, it is possible to prevent the atmospheric temperature around electric devices such as motors and switches from rising, which helps improve safety and life reliability.

Reference numeral 27 denotes a guard attached to cover the front opening of the main body case 1, in which a large number of edge members are arranged in parallel at appropriate intervals and integrated.

28 is a name plate attached to a part of the guard 27.

Reference numeral 29 denotes a manual switch provided at the lower front end of the main body case 1, which controls on/off the heater 10 and the blower 21.

30 is a handle attached to the upper back surface of the main body case 1.

In the above configuration, when the rotary knob 14 is operated and set so that the rotary reflector 12 is positioned behind the heater 10 as shown in FIG. and is ejected forward.

On the other hand, the air blown from the blower 21 is slightly heated while passing through the ventilation space 19, and is discharged forward as warm air with a small amount of heat.

Furthermore, when the rotary knob 14 is operated and set so that the rotary reflector 12 is positioned in front of the heater 10 as shown in FIG.
In the process of passing through the air, the air is sufficiently heated by the heater 10 to become warm air at an appropriate temperature, and is discharged forward along the upper part of the front reflecting plate 6.

At this time, hot air heating is the main heating element, and the amount of radiant heat emitted forward from the heater 10 is extremely small.

Furthermore, when the rotary knobs 14 and 14 are set so that one rotary reflector 12 is positioned in front of the heater 10 and the other rotary reflector 12 is positioned behind the heater 10, radiant heating and hot air The heating and heating will be about 50/50.

In the embodiment described above, the heater can be turned on on the condition that the blower is turned on, but it is also possible to turn the blower on and off regardless of whether the heater is on or off.

Further, the number of heaters can be increased by three or four, or in some cases, only one can be used.

If a conventional rotary reflector unit is adapted to have a shaft support structure, the result will be as shown in FIG. 5.

In FIG. 5, a tapered cylindrical hole 31 projecting outward is provided in the center of the end reflector 13, and an end 32 of the rod-shaped heater 10 is inserted into this tapered cylindrical hole 31.

Further, a tapered cylindrical hole 33 that protrudes outward similarly to the tapered cylindrical hole 31 is provided at a position facing the tapered cylindrical hole 31 of the side reflection plate 7, and this tapered cylindrical hole 33 is formed on the outer peripheral surface of the tapered cylindrical hole 31. They are fitted so that they are in contact with each other.

Conventionally, the configuration is as shown in FIG. 5, so when assembling the rotary reflector unit 11, the tapered tube hole 33 of the side reflector 7 is fitted into the taper tube hole 31 of the end reflector 13, and the fixed reflector unit is assembled. 5 and the rotary reflector unit 11 have to be combined, which has the drawback of extremely poor assembly workability.

Also, a rotating reflector unit 11 is attached to the side reflector 7. Heater 1
When a total weight of 0 is applied and a fall impact force is applied, the side reflection plate 7 is likely to be deformed.

Furthermore, since the heater 10 and the rotating reflector unit 11 are in contact with each other, the heater 10 also rotates slightly when the rotating reflector unit 11 moves around, and if used for a long period of time, a creep phenomenon may occur in the terminals of the heater 10. This caused wire breaks to occur easily at the terminals.

Furthermore, there was also the drawback that sliding noise was generated between the heater 10 and the end reflector 13, which were made of different materials.

In contrast, the present invention is as shown in FIGS. 6 to 8.

A cylindrical hole 34 projecting outward is provided in the center of the end reflector 13, and an end 35 of the rod-shaped heater 10 is loosely fitted into the cylindrical hole 34.

A semi-hole-shaped opening 36 with no rising edge is provided at a position of the side reflection plate 7 facing the cylindrical hole 34 .

And a support plate 3 having a tapered cylindrical hole 37 projecting inward.
8 is set in the opening 36 and fixed with screws 39.

The tapered cylindrical hole 37 of the support plate 38 is connected to the cylindrical hole 3 of the end reflector 13.
It is inserted so as to be in contact with the inner peripheral surface of 4.

As a result, the end portion 35 of the heater 10 is supported by the tapered cylindrical hole 37.

The cylindrical hole 34 of the end reflector 13 will slide on the outer peripheral surface of the tapered cylindrical hole 37, but the tip of the cylindrical hole 34 is parallel to the outer peripheral surface of the tapered cylindrical hole 31 so that the contact is surface contact. It is bent to

Therefore, first, the fixed reflector unit 5 is assembled by the front reflector 6 and the side reflector 7, the rotating reflector unit 11 is inserted into it, the support plate 38 is attached, and the support plate 38 is used to unite the rotating reflector unit. 11 and then inserting the end portion 35 of the heater 10 into the tapered cylindrical hole 3T, the assembly workability is extremely good.

Also, among the side reflectors 7, the rotary reflector unit 11. Since the support plate 38 overlaps the portion where the weight of the heater 10 is applied and the screws 39 are attached, the strength of the side reflection plate 7 is improved and there is less risk of deformation due to a drop impact.

Furthermore, when the rotary reflector unit 11 rotates, the cylindrical holes 34 and 37 simply rub against each other, and no rotational force is applied to the heater 10, making it difficult for the heater 10 to break, resulting in extremely high lifetime reliability.

Further, since the cylindrical holes 34 and 37 are in surface contact with each other, smooth rotation is possible and wear resistance is improved.

Based on the above structure, the present invention has the following effects.

(1) Since the fixed reflector unit and the rotary reflector unit can be assembled separately and then combined, assembly is easy and the assembly workability is extremely high.

(2) The support plate improves the strength of the side reflector, and there is less risk of deformation of the side reflector due to falling shelf impact.

(3) Further, no rotational force is applied to the heater, there are few breaks in the heater, and the lifetime reliability is high.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of an electric heater according to an embodiment of the present invention, Fig. 2 is a partially exploded perspective view of the electric heater, and Fig. 3 is a perspective view of an electric heater according to an embodiment of the present invention.
The figure shows a side sectional view of a state in which radiant heating is mainly performed, Figure 4 is a side sectional view of a state in which hot air heating is mainly performed, and Figure 5 shows the shaft support of a conventional rotary reflector unit. 6 is an enlarged sectional view of the shaft support of a rotary reflector unit according to an embodiment of the present invention; FIG. 7 is an end view of the same, and FIG.
The figure is an enlarged sectional view of the same. 1...Body case, 5...Fixed reflector unit, 6...Front reflector, 7...
Side reflector, 10... Rod-shaped heater, 11...
... Rotating reflector unit, 12... Rotating reflector, 13... End reflector, 14... Rotating knob, 19... Ventilation space, 21...
・Blower, 24.25.26... Suction port, 34
......Cylinder hole, 35... End of heater, 3
6...Opening, 37...Tapered cylinder hole, 3
8... Support plate, 39... Screw.

Claims (2)

[Scope of utility model registration request] (1) A fixed reflector unit composed of a front reflector and a pair of left and right side reflectors, one or more rod-shaped heaters located in front of the front reflector, and a cross-section showing the structure that revolves around the outer circumference of the heater. It is equipped with a rotary reflector unit composed of an arc-shaped rotary reflector and an end reflector, and a rotation operation means for changing the position of the rotary reflector with respect to the heater. A cylindrical hole protruding outward is provided, a half-hole-shaped opening is provided in the side reflecting plate facing the cylindrical hole, and a support plate having the cylindrical hole protruding inward is screwed to the opening, The cylindrical hole of the support plate is inserted in contact with the inner circumferential surface of the cylindrical hole of the end reflector, the end of the rod-shaped heater is supported on the inner circumferential surface of the cylindrical hole of the support plate, and the end of the rod-shaped heater is supported on the outer circumferential surface of the cylindrical hole of the end reflector. An electric heater characterized by supporting holes. (2) The cylindrical hole of the support plate is a tapered cylindrical hole, and the tip of the cylindrical hole of the end reflection plate is bent parallel to the tape cylindrical hole so that it comes into surface contact with the tapered cylindrical hole. The electric heater described in section 1).