Electric heater

Abstract

The utility model discloses an electric heater. A plurality of air inlet holes are formed in a bottom plate of the electric heater; a plurality of top hot air outlet holes are formed in the top of the lower bent arc-shaped plate; a power supply control device is fixedly connected to the wall body of the bottom section of one side of the lower bent arc-shaped plate; the left supporting leg and the right supporting leg are fixedly connected with the bottoms of the left and right ends of the corresponding bottom plate; the left and right bottom ends of the lower curved plate are fixedly connected with the left and right ends of the corresponding bottom plate; the edge of the front side plate is fixedly connected with the front edges of the corresponding bottom plate and the lower curved plate; the edge of the rear side plate is fixedly connected with the rear edges of the corresponding bottom plate and the lower curved plate; the bottom plate, the lower bent arc-shaped plate, the front side plate and the rear side plate are connected to form an electric cavity inside, a heating component support frame is fixed on the bottom plate at the bottom in the electric cavity, and an electric heating device is fixed on the heating component support frame; when the product dissipates heat, a fan-shaped hot air diffusion path is formed, so that the heat diffusion range is enlarged; the whole product is simple in structure, easy to assemble and high in production efficiency; the whole appearance is attractive and the practicability is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating, in particular to an electric heater. Background Art

[0002] For example 1: Chinese patent document publication number: CN220817871U, discloses an intelligent temperature-controlled energy-saving electric heater, including an electric heater main body, a supporting foot is arranged at the bottom of the electric heater main body, a control panel is arranged on the electric heater main body, an exhaust outlet is opened on the top of the electric heater main body, side air outlets are opened on both sides of the exhaust outlet at the top of the electric heater main body, an inner pipe is arranged on the inner wall of the electric heater main body, a partition net is arranged in the exhaust outlet, ventilation holes are opened on both sides of the electric heater main body, a ventilation fan is arranged at the bottom end of the electric heater main body, an air outlet is opened at the position of the ventilation fan in the electric heater main body, and an aerogel filling layer is arranged between the inner wall and the outer side of the electric heater main body.

[0003] The above products are products of the same type. An exhaust vent is opened on the top of the electric heater body. The exhaust vent is straight, and the main hot air heat flow basically rises vertically. The main hot air heat cannot be diffused to the left and right sides, and the heat diffusion angle is not wide enough; ventilation holes are opened on both sides of the electric heater body, and the air intake is insufficient, the heat is not large enough, and the circulation is not smooth enough; a ventilation fan is arranged at the bottom of the electric heater body, which increases the cost. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an electric heater with reasonable structural arrangement, simple structure and strong practicality.

[0005] The solutions to the above technical problems are:

[0006] An electric heater comprises a left supporting foot, a right supporting foot, a power control device, a heating component support frame, and an electric heating device, wherein the power control device is connected to the electric heating device through electric wires, and also comprises a bottom plate, a downward curved plate, a front side plate, and a rear side plate; a plurality of air inlet holes are provided on the bottom plate; a plurality of top heat outlet holes are provided on the top of the downward curved plate; a power control device is fixedly connected to a bottom section wall of one side of the downward curved plate; the left supporting foot and the right supporting foot are fixedly connected to the left and right bottom ends of the corresponding bottom plate; the left and right bottom ends of the downward curved plate are fixedly connected to the left and right ends of the corresponding bottom plate; the edge of the front side plate is fixedly connected to the corresponding bottom plate and the front edge of the downward curved plate; the edge of the rear side plate is fixedly connected to the corresponding bottom plate and the rear edge of the downward curved plate; after the bottom plate, the downward curved plate, the front side plate, and the rear side plate are connected, an electrical cavity is formed inside, a heating component support frame is fixed to the bottom plate at the bottom of the electrical cavity, and an electric heating device is fixed on the heating component support frame.

[0007] The beneficial effects of an electric heater of the utility model are as follows: the product has a downward curved plate design with a relatively large number of heat outlet holes on the top, and the heat outlet is smoother; the heat outlet holes on the top of the downward curved plate design can allow the hot air to diffuse to the left and right sides, forming a fan-shaped heat diffusion path, thereby increasing the heat diffusion range; the overall product structure is simple, easy to assemble, and has high production efficiency; it is beautiful as a whole and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 , Figure 2 , Figure 3 , Figure 4 A three-dimensional diagram of the product of the utility model;

[0009] Figure 5 , Figure 6 , Figure 7 , Figure 8 This is a disassembled diagram of the utility model product;

[0010] Fig. 9 It is a side view of the product of the utility model and a schematic diagram of heat diffusion;

[0011] Fig.10 for Fig. 9 AA direction cross-sectional view;

[0012] Fig.11 It is a top view of the product of the utility model;

[0013] Fig.12 for Fig.11 BB direction cross-sectional view.

[0014] Left supporting leg 1, right supporting leg 2, power control device 3, heating component support frame 4, left supporting frame 41, right supporting frame 42, electric heating device 5, bottom plate 6, air inlet hole 61, downward curved plate 7, top heat outlet hole 71, front side plate 8, front wall heat outlet hole 81, rear side plate 9, rear wall heat outlet hole 91, electrical cavity 10, left caster 11, right caster 12. DETAILED DESCRIPTION

[0015] An electric heater comprises a left supporting leg 1, a right supporting leg 2, a power control device 3, a heating component support frame 4, and an electric heating device 5. The left supporting leg 1 and the right supporting leg 2 are made of metal or plastic; the power control device 3 is connected to the electric heating device 5 through an electric wire; the above is the technical solution of the existing product; the main technical improvement of this product is that the electric heater also includes a bottom plate 6, a downward curved plate 7, a front side plate 8, and a rear side plate 9; the bottom plate 6 is an arc-shaped arch; the bottom plate 6, the downward curved plate 7, the front side plate 8, and the rear side plate 9 are respectively integrally processed and formed by metal processing machinery, and the production efficiency is high; the bottom plate 6, the downward curved plate 7, the front side plate 8, and the rear side plate 9 are made of iron or stainless iron or steel, and the surface is painted; the bottom plate 6 is provided with A plurality of air inlet holes 61 are provided, and the plurality of air inlet holes 61 are divided into a plurality of rows; the hole edges of the air inlet holes 61 are extended with inwardly turned edges, and the hands will not be hurt by touching from the outside; the left supporting foot 1 and the right supporting foot 2 support the electric heater, so that there is more space at the bottom for air to enter through the air inlet holes 61; a plurality of top heat outlet holes 71 are provided on the top of the downward curved plate 7, and the plurality of top heat outlet holes 71 are divided into a plurality of rows; the hole edges of the top heat outlet holes 71 are extended with inwardly turned edges, and the hands will not be hurt by touching from the outside; a power control device 3 is fixedly connected to a bottom section wall of one side of the downward curved plate 7 by a screw assembly; the power control device 3 comprises a circuit board, a power switch, a thermostat, a power adjustment key, and a tipping power switch, and the circuit board is connected by an electric The conductor is connected with the power switch, the thermostat, the power adjustment key and the tipping electric switch; the power switch is used for the overall power control; the thermostat is close to the electric heating device 5; the thermostat is used for the automatic power-off protection in case of over-temperature; the power adjustment key is used to adjust the power of the electric heating device 5, thereby adjusting the heating temperature; when the electric heater tips over (falls down), the tipping electric switch automatically disconnects the power supply and stops heating, and only when the electric heater is in the normal upright state, the power supply is turned on normally when it tips over; the power switch, the power adjustment key and the tipping electric switch are connected with the electric heating device 5 through the electrical conductor; a temperature display is connected to the circuit board; the bottom section wall of one side of the downward curved plate 7 is connected with the power switch and the power adjustment key through a screw assembly; the left support The support leg 1, the right support leg 2 and the bottom of the left and right ends of the corresponding bottom plate 6 are fixedly connected by screw assemblies; the left and right bottom ends of the downward curved plate 7 are fixedly connected to the left and right ends of the corresponding bottom plate 6 by screw assemblies; the edge of the front side plate 8 and the corresponding bottom plate 6 and the front edge of the downward curved plate 7 are fixedly connected together by screw assemblies; the edge of the rear side plate 9 and the corresponding bottom plate 6 and the rear edge of the downward curved plate 7 are fixedly connected together by screw assemblies; the bottom plate 6, the downward curved plate 7, the front side plate 8, and the rear side plate 9 are fixedly connected to form an electrical cavity 10 inside, and the bottom plate 6 at the bottom of the electrical cavity 10 is fixed with a heating component support frame 4 by a screw assembly, and the heating component support frame 4 is made of metal or high-temperature resistant plastic;The electric heating device 5 is fixed on the heating component support frame 4 by a screw assembly, and the electric heating device 5 is propped up so that the electric heating device 5 is neither in contact with the bottom plate 6, nor with the front side plate 8, the rear side plate 9, and the downward curved plate 7, and will not directly transfer heat to the bottom plate 6, the downward curved plate 7, the front side plate 8, and the rear side plate 9. The bottom plate 6, the downward curved plate 7, the front side plate 8, and the rear side plate 9 are kept at a lower temperature as much as possible, so that the hot air is blown out through the top heat outlet holes 71; the number of the top heat outlet holes 71 designed for the downward curved plate 7 is relatively large, and the hot air is discharged more smoothly; the top heat outlet holes 71 designed for the downward curved plate 7 can allow the hot air to diffuse to the left and right sides, forming a fan-shaped hot air diffusion path, which increases the heat diffusion range; the overall product structure is simple, easy to assemble, and has high production efficiency; the overall appearance is beautiful and practical. This product is a small product, mainly suitable for 1 to 4 people in homes and offices. The side of this product is scallop-shaped, fashionable and beautiful; the front side panel 8 and the rear side panel 9 are scallop-shaped. The top heat outlet 71, the electric heating device 5, and the air inlet 61 correspond vertically. The air enters from the air inlet 61, and after being heated by the electric heating device 5, it flows directly out from the top heat outlet 71. The hot air flows smoothly, the hot air flows quickly, and the heat conversion efficiency is high. ;

[0016] The heating component support frame 4 includes a left support frame 41 and a right support frame 42. The left support frame 41 and the right support frame 42 are fixed to the corresponding left support frame 41 and the right support frame 42 on the left and right sides of the bottom plate 6 at the bottom of the electrical cavity 10 by screw assemblies. The left support frame 41 and the right support frame 42 are jointly fixedly connected with the electric heating device 5 by screw assemblies. The left support frame 41 and the right support frame 42 lift the electric heating device 5 so that heat is not easily directly transferred to the bottom plate 6, so that the electric heating device 5 is heated by air circulation around it, and the heating effect is good. The left support frame 41 and the right support frame 42 are made of highly resistant non-metallic parts or metal parts with low thermal conductivity, such as stainless steel, and have low cost.

[0017] The electric heating device 5 is an electric heating tube assembly or an electric heating wire assembly or an electric heating sheet assembly, all of which can realize the heating function, have mature product technology, and are low in cost. The electric heating device 5 is a combination of an electric heating tube and an aluminum heat sink or a copper heat sink. A plurality of aluminum heat sinks or a plurality of copper heat sinks are connected to the electric heating tube, which has a large heat dissipation area and a good effect. The power switch, the power adjustment key, and the dumping electric switch are connected to the electric heating tube through an electrical conductor.

[0018] The upper wall of the front side plate 8 is provided with a front wall heat outlet hole 81 , and the front wall heat outlet hole 81 is integrally formed with the front side plate 8 to increase the front heat diffusion area.

[0019] The upper wall of the rear side plate 9 is provided with a rear wall heat outlet hole 91 , and the rear wall heat outlet hole 91 is integrally formed with the rear side plate 9 to increase the rear heat diffusion area.

[0020] The top of the downward curved plate 7 is provided with a plurality of top heat outlet holes 71 along the curved plate surface to increase the top heat diffusion area.

[0021] The bottom of the left supporting foot 1 and the right supporting foot 2 are fixed with corresponding left casters 11 and right casters 12 through screw assemblies, which are convenient for moving and changing positions and convenient for use.

Claims

1. An electric heater, comprising a left supporting leg, a right supporting leg, a power control device, a heating component support frame, and an electric heating device, wherein the power control device is connected to the electric heating device through an electric wire, and is characterized in that: It also includes a bottom plate, a downward curved plate, a front side plate, and a rear side plate; a plurality of air inlet holes are opened on the bottom plate; a plurality of top heat outlet holes are opened on the top of the downward curved plate; a bottom section wall of one side of the downward curved plate is fixedly connected to a power supply control device; the left supporting foot and the right supporting foot are fixedly connected to the left and right bottom ends of the corresponding bottom plate; the left and right bottom ends of the downward curved plate are fixedly connected to the left and right ends of the corresponding bottom plate; the edge of the front side plate is fixedly connected to the corresponding bottom plate and the front edge of the downward curved plate; the edge of the rear side plate is fixedly connected to the corresponding bottom plate and the rear edge of the downward curved plate; after the bottom plate, the downward curved plate, the front side plate, and the rear side plate are connected, an electrical cavity is formed inside, and a heating component support frame is fixed to the bottom plate at the bottom of the electrical cavity, and an electric heating device is fixed on the heating component support frame.

2. An electric heater according to claim 1, characterized in that: The heating component support frame includes a left support frame and a right support frame. The left support frame and the right support frame are fixed to the left and right sides of the bottom plate at the bottom of the electrical cavity. The left support frame and the right support frame are jointly fixedly connected with an electric heating device.

3. An electric heater according to claim 1, characterized in that: The electric heating device is an electric heating tube assembly, an electric heating wire assembly or an electric heating sheet assembly.

4. An electric heater according to claim 1, characterized in that: The upper wall of the front side plate is provided with a front wall heat outlet hole.

5. An electric heater according to claim 1, characterized in that: The upper wall of the rear side plate is provided with a rear wall heat outlet hole.

6. An electric heater according to claim 1, characterized in that: The top of the downward curved plate is provided with a plurality of top heat outlet holes along the curved plate surface.

7. An electric heater according to any one of claims 1 to 6, characterized in that: The bottoms of the left supporting foot and the right supporting foot are fixed with corresponding left casters and right casters.

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