JP5119410B2 - Electric panel heater - Google Patents

Description

  The present invention relates to an electric panel heater for heating by radiant heat.

A typical electric panel heater has a heat-dissipating member placed on the back of a panel-shaped frame body, and a heat-dissipating opening with a guard disposed on the front surface of the frame body. This frame body is made to stand from the floor surface by legs provided at the lower part of the frame body, and heat rays generated by the planar heating element are radiated from the heat radiation opening to the front of the frame body and warmed by the planar heating element. The air in the frame body is discharged upward from an air outlet provided on the upper surface of the frame body, and heating by heat ray radiation and natural convection is performed. (See Patent Document 1)
Japanese Examined Patent Publication No. 59-47808.

  In the above-described conventional electric panel heater, in order to heat a wide area in front of the frame body by the heat rays radiated from the heat radiating openings, the area of the planar heating element or the heat radiating openings is increased and the heat rays radiated from the heat radiating openings. However, if the planar heating element and the heat radiation opening are enlarged, the frame shape also becomes large, so there is a disadvantage that it takes up space when not in use or stored.

  In addition, the heating effect by the heat ray is obtained in the vicinity of the front of the heat radiation opening on the front surface of the frame body to which the heat ray generated by the planar heating element reaches, but the heating effect by the heat ray is not obtained at the side or rear of the frame body. However, the natural convection heating capacity obtained from the calorific value of the sheet heating element does not provide a sufficient heating effect, and a considerable amount of time is required until the room temperature rises. There was a problem.

The present invention solves the above-mentioned problems, and a heat-dissipating member 2 is disposed on the back of the thin panel-shaped frame 1 and a heat radiation opening 4 is provided on the front surface of the frame 1 with a guard 3 disposed. A planar heating element 5 is attached in the frame 1 between the heat shield member 2 and the guard 3, and the frame 1 is provided with a leg 6, and the leg 6 is used to attach the frame 1 to the floor surface. In the electric heater that radiates the heat ray from the heat radiation opening 4 by standing up from the two, the two frame bodies 1 are juxtaposed and the two frame bodies 1 are connected by the rotating shaft portion 7, and the two frame bodies 1 are rotated. around the shaft portion 7 is the direction facing the respective heat dissipation port 4 serves to variably, provided rotation regulating portion 8 is provided between the rotary shaft portion 7 or the two frame 1, the rotation restricting portion 8 together with the opening angle of the two frame 1 constitutes a fall prevention means is not open more than a predetermined angle, the frame A cylindrical portion 13 a is formed at the end of the wiring cover 13 attached to the side surface of the wiring cover 13, and the cylindrical portion 13 a is located on the extension shaft of the rotating shaft portion 7. The cylindrical part 13a is arranged adjacent to each other in the vertical direction, and the wiring 14 connecting the two frames 1 is arranged in the other wiring cover 13 from the inside of one wiring cover 13 through the adjacent cylindrical part 13a. It is characterized by that.

In addition, an air inlet 9 through which air between the floor and the floor flows in is provided on the bottom surface of the frame body 1, and an air outlet port 10 is provided on the upper surface of the frame body 1. In the rotation position where the opening 4 is opposed, a space 11 is formed between the two frame bodies 1 so that the heat radiation opening 4 on the front surface of the frame body 1 is opposed to the sheet body 1. All the air in the frame 1 and the space 11 that is warmed by the body 5 is discharged above the frame 1 and the entire room can be heated by natural convection.

Further, the rotation shaft portion 7 attached to the side surface of the frame body 1 is located in front of the front surface of the frame body 1, and protrudes from the front surface of the frame body 1 opposite to the rotation shaft portion 7. A portion 12 is formed, and the interval 11 is formed by the rotating shaft portion 7 and the convex portion 12. By specifying the positional relationship between the rotating shaft portion 7 and the convex portion 12, the interval can be reduced with a simple structure. 11 can be formed.

The legs 6 include two rear legs 6a extending rearward from the lower part of the frame 1 near the side of each frame 1, and the vicinity of the side of the frame 1 opposite to the rotating shaft 7. The front leg 6b extends forward from the lower part of the frame 1, and the front leg 6b abuts at a rotation position where the heat radiating opening 4 of the frame 1 is opposed by the rotation shaft portion 7. Since the two frame bodies 1 are prevented from opening more than a predetermined opening angle by the rotation restricting portion 8, even if the shape of the front leg 6b is small, the frame body 1 does not fall down. The shape of the front leg 6b can be set according to the above.

In the electric panel heater according to the present invention, two frame bodies 1 each having a planar heating element 5 are juxtaposed and connected by a rotating shaft portion 7, and the two frame bodies 1 are centered on the rotating shaft portion 7. The direction in which the heat radiating opening 4 faces can be changed, and when the heater is used, the two frame bodies 1 are widened so that the heat radiating openings 4 are opened. Since heat rays are radiated from the heat radiation opening 4, a wide area in front of the frame body 1 can be heated. On the other hand, at the time of non-use or storage, the frame 1 can be folded in a small state by making the heat radiation opening 4 of the frame 1 face each other, so that a compact and space-saving configuration can be realized.
In the present invention, the rotation restricting portion 8 is provided between the rotating shaft portion 7 or the two frame bodies 1, and the rotation restricting portion 8 prevents the frame body 1 from opening more than a predetermined opening angle. When the body 1 is unfolded, the two frame bodies 1 have a square shape, so that the frame body 1 can have a stable structure and the frame body 1 does not easily fall over.

  In addition, the electric panel heater of the present invention can be used even when the heat radiation openings 4 of the two frames 1 are opposed to each other, so that an air inlet 9 is provided on the bottom surface of the frame 1 and the upper surface of the frame 1 is provided. When the air outlet 10 is provided and the heat radiation opening 4 of the frame 1 is opposed to each other, a space 11 is formed between the two frames 1, and when the heat radiation opening 4 of the frame 1 is opposed. Since the air in the frame 1 and the space 11 is warmed and released to the upper side of the frame 1, the heating capacity by natural convection is improved and the entire room can be efficiently heated, improving usability. did it.

  Further, the rotation shaft portion 7 attached to the side surface of the frame body 1 is positioned in front of the front surface of the frame body 1, and the convex portion 12 is formed on the front surface of the frame body 1 opposite to the rotation shaft portion 7. Since the rotation shaft portion and the convex portion 12 are located between the two frame bodies 1 at the position where the heat radiating openings 4 of the frame body 1 face each other, the interval 11 can be formed. By specifying the positional relationship between the convex portions 12, the interval 11 can be formed with a simple structure.

  The leg 6 is composed of a rear leg 6a extending rearward of the frame body 1 and a front leg 6b extending frontward so that the front leg 6b comes into contact with the heat radiation opening 4 of the frame body 1 facing each other. Thus, the space 11 is formed by the rotation shaft portion 7 and the front leg 6b. In this configuration, the shape of the front leg 6b is reduced in order to form the interval 11, but by restricting the opening angle of the frame 1 by the rotation restricting portion 8, the shape of the frame 1 depending on the shape when the frame 1 is expanded. Therefore, even if the front leg 6 is made small, the frame body 1 does not fall down. And when the space | interval 11 is formed by the rotating shaft part 7 and the front leg 6b, since the convex part 12 can be combined by the front leg 6b, the space | interval 11 can be formed even if it does not provide the convex part 12 of the frame 1 front surface, It can be realized with a simple structure while suppressing an increase in the number of parts.

  Further, the wiring covers 13 are attached to the side surfaces of the two frame bodies 1, and the cylindrical portions 13 a formed at the ends of the wiring covers 13 are arranged adjacent to each other vertically on the extension shaft of the rotating shaft portion 7. Since the wiring 14 connecting the frame body 1 is arranged in the other wiring cover 13 from the inside of the one wiring cover 13 through the adjacent cylindrical portion 13a, the wiring 14 is not exposed to the outside of the frame body 1 and can be rotated. Even if the angle of the frame 1 is changed around the moving shaft portion 7, the wiring 14 is not twisted or disconnected.

  The present invention will be described with reference to the embodiments shown in the drawings. Reference numeral 1 denotes a frame body of an electric panel heater, 2 denotes a heat shield member arranged on the back side in the frame body 1, and 4 denotes a heat radiation opening formed on the front surface of the frame body 1. 3 is a guard attached to the heat radiation opening 4, 5 is a planar heating element constituting a heater attached between the heat shield member 2 and the guard 3 in the frame 1, and 6 is near the side of the frame 1. It is a pair of legs attached to the bottom surface, and the frame body 1 is made to stand from the floor surface by the legs 6. When the planar heating element 5 is energized, the planar heating element 5 is heated and the whole becomes high temperature. 1 Heat rays are radiated forward from the heat radiation opening 4 on the front surface.

  Reference numeral 9 denotes an air inlet provided on the bottom surface of the frame 1, 10 denotes an air outlet provided on the upper surface of the frame 1, and when the planar heating element 5 is energized, the frame heated by the planar heating element 5 1 is discharged upward from the air outlet 10 on the upper surface of the frame body 1, and the air between the bottom surface and the floor surface of the frame body 1 flows into the frame body 1 from the air inlet port 9. Since the interior of the frame 1 rises along the heating element 5, natural convection by hot air is created to heat the room.

  Since the electric panel heater is for heating a person who warms up in front of the frame 1 mainly by heat rays radiated from the heat radiating openings 4 on the front surface of the frame 1, the heat rays radiated from the heat radiating openings 4 reach a wide range. In order to save, the sheet heating element 5 and the heat radiation opening 4 are enlarged. However, if the sheet heating element 5 and the heat radiation opening 4 are enlarged, the shape of the frame becomes large, and it takes up space when not in use or storage. There is a drawback that it gets in the way.

  In addition, even if the planar heating element 5 and the heat radiation opening 4 are enlarged, the heat rays do not reach the side and the rear side of the frame 1, so that the heating effect by the heat rays cannot be obtained on the side and the rear side of the frame 1. For this reason, it is necessary to wait until the temperature in the room rises. However, a general electric panel heater has a safe temperature that does not cause a burn even if it touches the heat radiation opening 4 or the air outlet 10. Since the amount of heat generated by the planar heating element 5 is kept low, a considerable time is required until the room temperature rises, and the heating performance by natural convection cannot be expected so much.

  As shown in the figure, the present invention has a structure in which two frames 1 are arranged side by side, and can be heated over a wide range when used, and can be stored compactly when not in use or stored. 7 is a rotating shaft portion that connects two frame bodies 1, 7 a is two attachment members that fit into the rotating shaft portion 7, The attachment members 7 a are respectively attached to the side surfaces of the two frame bodies 1, and the two frame bodies 1 are connected so as to be rotatable around the rotation shaft portion 7.

The two frame bodies 1 that rotate about the rotation shaft portion 7 are expanded from the state in which the frame body 1 is folded and the respective heat radiation openings 4 are opposed to each other, and the frame body 1 is expanded and the front of the heat radiation opening 4 is opened. When the two frame bodies 1 are expanded to the left and right, the heat radiation openings 4 are arranged side by side, and heat rays are radiated from the heat radiation openings 4 of the two frame bodies 1. Therefore, the radiation range of the heat ray can be expanded in the lateral direction, and a wide range in front of the frame 1 can be heated.
On the other hand, when the heat radiation opening 4 on the front surface of the frame body 1 is opposed, the frame body 1 can be folded into a small size, so that the space when not in use or stored can be reduced.
Moreover, since the heat radiation opening 4 of the two frames 1 can be directed in an arbitrary direction, when performing heating in a wide range, the frame 1 is used in a state where the frame 1 is expanded to the maximum, and when performing heating in a narrow range. By narrowing the opening angle of the frame 1, heat rays can be concentrated, and the radiation range of the heat rays from the heat radiation opening 4 can be changed according to the use situation, so that the usability can be improved.

  In the above configuration, when the opening angle when the two frame bodies 1 are expanded to the maximum is 180 degrees, the stability in the front-rear direction is deteriorated, and when the two frame bodies 1 are pushed from the front or the rear, they easily fall over. As a countermeasure for this, reference numeral 8 denotes a rotation restricting portion for preventing the two frame members 1 from opening more than a predetermined opening angle. When the frame member 1 is widened, the frame restricting member 8 is acted upon by the rotation restricting portion 8. The opening angle is set to be 180 degrees or less, and the two frames 1 are arranged in a square shape so that the heat radiating opening 4 faces slightly inward.

The rotation restricting portion 8 of the embodiment shown in the figure uses an attachment member 7a of the rotation shaft portion 7 attached to the side surface of the frame body 1 and an end opposite to the rotation shaft portion 7 on the side surface of the attachment member 7a. An inclined portion is provided so that the portion protrudes, and the rotation restricting portion 8 is configured by the inclined portion on the side surface of the mounting member 7a.
For this reason, when the two frame bodies 1 are spread around the rotation shaft portion 7, the rotation restricting portion 8 comes into contact with the two frame bodies 1 so that the frame body 1 does not open any more. Since the two frame bodies 1 are arranged in a square shape, and the two frame bodies 1 are in a square shape, it is difficult to fall down. Therefore, even if the frame body 1 is pushed from the front or the rear, it easily falls down. The product became stable.

  In the embodiment of the present invention, reference numeral 11 denotes an interval formed between the two frame bodies 1 when the heat radiating openings 4 of the frame body 1 are opposed to each other, and 12 denotes a frame body on the side opposite to the rotating shaft portion 7. 1 is a convex portion provided on the front surface of 1, and the rotation shaft portion 7 attached to the side surface of the frame body 1 is positioned forward of the front surface of the frame body 1. When the frame body 1 is folded and the heat radiating opening 4 is opposed, the convex portion 12 comes into contact, and the rotating shaft portion 7 and the convex portion 12 are positioned between the two frame bodies 1. A space 11 is formed between the frame body 1 by the moving shaft portion 7 and the convex portion 12, and this configuration allows the frame body 1 to be used even in a state where the frame body 1 is folded and the heat radiation opening 4 is opposed.

  When the planar heating element 5 is energized with the two frame bodies 1 folded, the air in the frame body 1 is warmed, and the warmed air is discharged upward from the air outlet 10 on the upper surface of the frame body 1. Then, the air between the bottom surface of the frame body 1 and the floor surface flows from the air inlet 9 on the bottom surface of the frame body 1. Further, the heat rays radiated from the heat radiation opening 4 warms the space 11 air, and the air warmed within the space 11 rises and is released above the frame 1, so that it is generated from the planar heating element 5. Since all the hot air becomes a high-temperature air flow toward the upper side of the frame body 1 and the heating capacity by natural convection can be improved, when heating the whole room, the frame body 1 is folded and heated efficiently. Can be done.

  6a is a rear leg extending rearward from the lower part of the frame 1, 6b is a front leg extending to the front side of the frame 1, and two rear legs 6a are provided near the side of the frame 1, and the front leg 6b Is provided in the vicinity of the side of the frame 1 opposite to the rotating shaft 5, and the rear leg 6 a extends to the rear side when the frame 1 is folded and when the frame 1 is expanded. The front leg 6b has a function of preventing a forward fall when the frame body 1 is expanded.

In the present invention, when the frame body 1 is spread out, the two frame bodies 1 are formed in a square shape by the rotation restricting portion 8, and the shape of the frame body 1 makes the frame body irrespective of the shape and size of the front leg 6b. 1 can be prevented from falling to the front side, the shape of the front leg 6b can be reduced.
For this reason, when the two frame bodies 1 are folded and the heat radiating openings 4 are opposed to each other, the front legs 6b are provided so as to come into contact with each other, and the space 11 is formed between the two frame bodies 1 by the front legs 6b. It is a configuration. Thus, since it becomes unnecessary to provide the convex part 12 in the front surface of the frame 1 if the space | interval 11 can be formed by the front leg 6b, it can suppress by the increase in a number of parts, and can be made with a simple structure. It became.

  In the embodiment of the present invention, reference numeral 14 is a wiring for connecting the electrical component in one frame 1 and the electrical component in the other frame 1, and 1 a is an opening provided on the side of the frame 1. The wiring 14 is extended from the opening 1a of one frame 1 to the opening 1a of the other frame 1, electrical components in the two frames 1 are connected by an electric wire 14, and the power supply is in one frame 1. And is supplied to the other frame body by the wiring 14 connecting the both frame bodies 1.

Reference numeral 13 denotes a wiring cover that covers the wiring 14 attached to the side surface of the frame body 1, 13 a denotes a cylindrical portion provided at an end of the wiring cover 13, and the wiring cover 13 is provided on the side surface of the frame body 1. The cylindrical portion 13 a of the wiring cover 13 is provided so as to be positioned on the extension shaft of the rotating shaft portion 7.
The upper and lower wiring covers 13 are connected to the inner space of the cylindrical portion 13a, and the wiring 14 drawn into the wiring cover 13 from the opening 1a of the one frame 1 is inside the cylindrical portion 13a arranged vertically. And reaches the other wiring cover 13 and is connected to the other frame 1. For this reason, the wiring 14 which connects the electrical components of the two frame bodies 1 is not exposed outside the frame body 1, and the appearance of the frame body 1 is not impaired.
Further, when the frame body 1 is rotated around the rotation shaft portion, the tubular portion 13a of the wiring cover 13 is also rotated together with the rotation of the frame body 1, but the tubular portion 13a. Since the wiring 14 arranged inside does not rotate, the wiring 14 is not twisted or disconnected.

It is a cross-sectional view which shows the state which folded the electric panel heater of the Example of this invention. It is a longitudinal cross-sectional view which shows the state which folded the electric panel heater of the Example of this invention. It is a top view which shows the state which extended the electric panel heater of the Example of this invention. It is a perspective view which shows the state which extended the electric panel heater of the Example of this invention. It is principal part sectional drawing of the electric panel heater which shows the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame body 2 Heat shield member 3 Guard 4 Radiation opening 5 Planar heating element 6 Leg 6a Rear leg 6b Front leg 7 Rotating shaft part 8 Rotation restriction part 9 Air inflow port 10 Air outflow port 11 Space | interval 12 Convex part 13 Wiring cover 13a Tubular part 14 Wiring

Claims (4)

A heat shield member 2 is disposed on the back of the thin panel-like frame body 1, and a heat radiation opening 4 in which a guard 3 is disposed on the front surface of the frame body 1 is provided, between the heat shield member 2 and the guard 3. A planar heating element 5 is attached in the frame 1 of
In the electric heater which is provided with legs 6 in the frame body 1 and stands the frame body 1 from the floor surface with the legs 6 and radiates heat rays from the heat radiation opening 4.
The two frame bodies 1 are arranged side by side and the two frame bodies 1 are connected to each other by the rotation shaft portion 7, and the two frame bodies 1 are oriented in the direction of the heat radiation openings 4 around the rotation shaft portion 7. It is variable and
A rotation restricting portion 8 is provided between the rotating shaft portion 7 or the two frame bodies 1, and the rotation restricting portion 8 provides a means for preventing the overturning so that the opening angle of the two frame bodies 1 does not open more than a predetermined angle. as well as configuration,
A cylindrical portion 13a is formed at the end of the wiring cover 13 attached to the side surface of the frame 1, and the cylindrical portion 13a is located on the extension shaft of the rotating shaft portion 7,
The respective cylindrical portions 13a of the frame 1 are arranged adjacent to each other in the vertical direction, and the wiring 14 connecting the both frames 1 passes from the inside of the one wiring cover 13 to the other wiring cover through the adjacent cylindrical portion 13a. The electric panel heater characterized by being arrange | positioned in 13. FIG . The bottom surface of the frame body 1 is provided with an air inlet 9 through which air flows into and out of the floor surface, the top surface of the frame body 1 is provided with an air outlet 10, and the heat radiating opening of the frame body 1 2. The electric panel heater according to claim 1 , wherein an interval 11 is formed between the two frame bodies 1 at a rotation position where 4 faces each other. The rotation shaft portion 7 attached to the side surface of the frame body 1 is positioned in front of the front surface of the frame body 1, and a convex portion is formed on the front surface of the frame body 1 opposite to the rotation shaft portion 7. The electric panel heater according to claim 2 , wherein the distance 11 is formed by the rotating shaft portion 7 and the convex portion 12. The legs 6 have two rear legs 6a extending rearward from the lower part of the frame 1 near the side of each frame 1, and the vicinity of the side of the frame 1 opposite to the pivot shaft 7. The front leg 6 b extends forward from the lower part of the frame body 1, and the front leg 6 b abuts at a rotational position where the heat radiating opening 4 of the frame body 1 is opposed by the rotational shaft portion 7. The electric panel heater according to any one of claims 1 to 3 .

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