CN213272778U

CN213272778U - Electric heater

Info

Publication number: CN213272778U
Application number: CN202021879418.1U
Authority: CN
Inventors: 李和香
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-25
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses an electric heater, including base and heating tube, the base top is equipped with upper and lower insulating layer and the surface scribbles the heat conduction cover of graphite alkene layer, upper and lower insulating layer closes the heat conduction chamber that forms the confined with the both ends lid of heat conduction cover respectively and wraps the heating tube, the heating tube is connected with the automatically controlled unit electricity that sets up in the base, because the heat that the heating tube produced and the heat that the heat conduction cover absorbed all gather in the heat conduction chamber, the heat conduction cover can obstruct the air and take away the heat simultaneously, reduce calorific loss, therefore, the temperature in the heat conduction chamber can rise fast; on the other hand, the graphene has the effect of enhancing the far infrared emissivity, so that heat in the heat conduction cavity and the heat conduction sleeve is quickly radiated outwards under the effect of the graphene layer, and the ambient temperature of the electric heater is quickly increased; furthermore, the upper and lower insulating layers can prevent the far infrared rays from radiating to the upper and lower ends of the electric heater, so that the far infrared rays radiated from the heat conducting sleeve can be diffused outwards in a heat mode in parallel, and the heating is facilitated.

Description

Electric heater

Technical Field

The utility model relates to a technical field of the warmer, especially an electric heater.

Background

The electric heater is an electric appliance for converting electric energy into heat energy, wherein the heating tube is a heating device of the electric heater. The heating tube is electrified to generate heat which is radiated and transmitted outwards in the form of far infrared rays.

In order to facilitate the heat transfer, the electric heater usually exposes the heating tube in the air, and because there is no shielding object around the heating tube, the far infrared ray generated by the heating tube can radiate more widely and farther. However, the heat generated by the exposed heating tube is easily taken away by the flowing air, which causes the problems of fast heat loss and slow temperature rise of the heating tube, and the heating tube consumes more electric quantity when reaching the rated temperature.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides an electric heater.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an electric heater, includes base and heating tube, and the base top is equipped with upper and lower insulating layer and the heat conduction cover that scribbles graphite alkene layer on the surface, and upper and lower insulating layer closes the formation confined heat conduction chamber with the both ends lid of heat conduction cover respectively and wraps the heating tube, and the heating tube is connected with the electrical control unit electricity that sets up in the base.

The electric heater comprises a top cover positioned above the upper heat insulation layer, and a protection net is clamped between the top cover and the base to surround the heat conduction cavity.

The top cover and the upper heat insulation layer are arranged in a spaced mode, the end face of the upper heat insulation layer extends outwards to the inner wall of the protection net, a spaced layer is formed between the top cover and the upper heat insulation layer, and the spaced layer is communicated with the outside through meshes in the protection net.

The base is internally and upwards extended out of the annular wall and is abutted and fixed with the bottom surface of the lower heat insulation layer to form an installation cavity for installing the electric control unit, and the heating tube is installed on the top surface of the lower heat insulation layer.

The end face of the lower heat insulation layer extends outwards to the inner wall of the protection net and forms a heat dissipation cavity with the protection net abutting against the outer edge of the base, and the heat dissipation cavity surrounds the installation cavity and is communicated with the outside through meshes in the protection net.

The two ends of the heat conduction sleeve are provided with an upper opening and a lower opening, the end faces of the upper heat insulation layer and the lower heat insulation layer are provided with an upper limiting step and a lower limiting step corresponding to the upper opening and the lower opening respectively, and the upper opening and the lower opening of the heat conduction sleeve are sleeved with the upper limiting step and the lower limiting step respectively to achieve installation of the heat conduction sleeve.

The upper heat-insulating layer and the lower heat-insulating layer are respectively composed of an upper heat-insulating plate, a lower heat-insulating plate and a heat-insulating cotton layer clamped between the upper heat-insulating plate and the lower heat-insulating plate.

The utility model has the advantages that: the upper and lower heat insulating layers and the heat conducting sleeve of the utility model form a closed heat conducting cavity, the far infrared rays radiated by the heating tube are absorbed by the heat conducting sleeve coated with the graphene layer to generate heat, and the heat generated by the heating tube and the heat absorbed by the heat conducting sleeve are accumulated in the heat conducting cavity; on the other hand, the graphene has the effect of enhancing the far infrared emissivity, so that heat in the heat conduction cavity and the heat conduction sleeve is quickly radiated outwards through the heat conduction sleeve under the effect of the graphene layer, the ambient temperature of the electric heater is quickly raised, and the electricity consumption of the electric heater is favorably saved; furthermore, the upper and lower insulating layers can prevent the far infrared rays from radiating to the upper and lower ends of the electric heater, so that the far infrared rays radiated from the heat conducting sleeve can be diffused outwards in a heat mode in parallel, and the heating is facilitated.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a partial cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of FIG. 1, taken apart;

fig. 4 is a schematic view of the upper thermal insulation layer of the present invention.

Detailed Description

Referring to fig. 1 to 4, the utility model comprises a base 1 and a heating tube 2, an upper and a lower thermal insulation layer and a heat conduction sleeve 3 coated with graphene layers on the surface are arranged above the base 1, the upper and the lower thermal insulation layers are respectively covered with two ends of the heat conduction sleeve 3 to form a closed heat conduction cavity 4, the heat conduction cavity 4 coats the heating tube 2 to enable the heat emitted by the heating tube 2 to be accumulated in the heat conduction cavity 4, and meanwhile, the far infrared rays radiated by the heating tube 2 are absorbed by the heat conduction sleeve 3 to enable the heat conduction sleeve 3 to generate heat, which is beneficial for the heat conduction cavity 4 to further accumulate heat; meanwhile, the heating tube 2 is surrounded by the heat-conducting sleeve 3 and the upper and lower heat-insulating layers, so that heat on the heating tube 2 is prevented from being taken away by air, and heat loss is reduced, therefore, the heat-conducting cavity 4 can realize the function of quickly raising the temperature; on the other hand, the graphene layer is coated on the surface of the heat conducting sleeve 3, and the graphene has the effect of enhancing the far infrared emissivity, so that heat in the heat conducting cavity 4 and on the heat conducting sleeve 3 is quickly radiated outwards under the effect of the graphene layer, the ambient temperature of the electric heater is quickly raised, and the electricity consumption of the electric heater is favorably saved; further, upper and lower insulating layer separation far infrared radiates to the upper and lower both ends of electric heater for the far infrared that radiates out from guide pin bushing heat 3 is with the parallel outward diffusion of heat form, more is favorable to the heating.

In order to prevent that heat conduction cover 3 and upper and lower insulating layer from scalding the human body, so this electric heater sets up top cap 7 in the top of last insulating layer 6, it is equipped with protection net 8 to press from both sides between top cap 7 and the base 1, protection net 8 surrounds heat conduction cavity 4, because upper and lower insulating layer is heat separation in heat conduction cavity 4, therefore,

top cap

7 and 1 surface temperature of base are low, can not scald the human body, and protection net 8 has the mesh, the air flows through the mesh and has the heat on the protection net 8, make protection net 8's temperature descend fast, also can not scald the human body. In order to further reduce the temperature between the top cover 7 and the upper heat insulation layer 6, in this embodiment, a space layer is disposed between the top cover 7 and the upper heat insulation layer 6, specifically: top cap 7 and last insulating layer 6 are for separating empty setting, and the terminal surface of going up insulating layer 6 outwards extends to the inner wall of protection net 8, makes to form between top cap 7 and the last insulating layer 6 and separates the empty layer, and the air gets into and separates the empty layer from the mesh of protection net 8 to take away the heat that the insulating layer 6 transferred to separating in the empty layer from last, make the temperature on top cap 7 surface lower, more can not scald the human body.

Preferably, in this embodiment, the annular wall 11 extending upward in the base 1 abuts against and is fixed to the bottom surface of the lower heat insulation layer 5 to form an installation cavity 12 for installing the electronic control unit 9, and the heating tube 2 is installed on the top surface of the lower heat insulation layer 5 and is electrically connected with the electronic control unit 9, because the electronic control unit 9 is located in the installation cavity 12, it is not easy to be damaged, and the heating tube 2 and the electronic control unit 9 are only separated by the lower heat insulation layer 5, so that the connection distance between the heating tube 2 and the electronic control unit 9 is short, which is beneficial to saving connecting wires. In order to cool the installation cavity 12, the temperature of the electric control unit 9 in the installation cavity 12 is prevented from being too high, and danger is caused, so that the end face of the lower heat insulation layer 5 outwards extends to the inner wall of the protection net 8 and forms a heat dissipation cavity with the protection net 8 abutting against the outer edge of the base 1, the installation cavity 12 is surrounded by the heat dissipation cavity and is communicated with the outside through meshes in the protection net 8, air enters the heat dissipation cavity from the meshes, heat transferred to the heat dissipation cavity and the installation cavity 12 from the lower heat insulation layer 5 is taken away, and the temperature in the heat dissipation cavity and the installation cavity 12 is reduced.

In order to conveniently install the heat conduction sleeve 3, an upper opening 31 and a lower opening 32 are arranged at two ends of the heat conduction sleeve 3, the end surfaces of the upper heat insulation layer and the lower heat insulation layer are respectively higher than the upper opening and the lower opening by an upper limiting step 61 and a lower limiting step 51, and the heat conduction sleeve 3 can be installed by respectively aligning and sleeving the upper opening and the lower opening of the heat conduction sleeve 3 into the upper limiting step and the lower limiting step.

Preferably, the upper heat insulation layer 6 and the lower heat insulation layer 5 of the present embodiment are respectively composed of an upper heat insulation plate 62, a lower heat insulation plate 64 and a heat insulation cotton layer 63 sandwiched between the upper heat insulation plate and the lower heat insulation plate, so that double heat insulation can effectively prevent heat from being transferred to the top cover 7 and the base 1, and prevent the temperature of the top cover 7 and the base 1 from being too high.

Claims

1. The utility model provides an electric heater, includes base (1) and heating tube (2), its characterized in that: the solar heating tube is characterized in that an upper heat insulation layer (6), a lower heat insulation layer (5) and a heat conduction sleeve (3) with a graphene layer coated on the surface are arranged above the base (1), the upper heat insulation layer (6) and the lower heat insulation layer (5) are respectively covered with two ends of the heat conduction sleeve (3) to form a closed heat conduction cavity (4) to coat the heating tube (2), and the heating tube (2) is electrically connected with an electric control unit (9) arranged in the base (1).

2. The electric heater of claim 1, wherein: the electric heater is including being located top cap (7) of last insulating layer (6) top, top cap (7) with it will to press from both sides between base (1) to be equipped with protection network (8) heat conduction chamber (4) surround.

3. The electric heater of claim 2, wherein: the top cover (7) and the upper heat insulation layer (6) are arranged in a spaced mode, the end face of the upper heat insulation layer (6) extends outwards to the inner wall of the protection net (8), a space layer is formed between the top cover (7) and the upper heat insulation layer (6), and the space layer is communicated with the outside through meshes in the protection net (8).

4. The electric heater of claim 2, wherein: the base (1) extends upwards to form a ring wall (11) to be abutted and fixed with the bottom surface of the lower heat insulation layer (5) to form a mounting cavity (12) for mounting the electric control unit (9), and the heating tube (2) is mounted on the top surface of the lower heat insulation layer (5).

5. The electric heater of claim 4, wherein: the end face of the lower heat insulation layer (5) extends outwards to the inner wall of the protection net (8), and forms a heat dissipation cavity with the protection net (8) which is abutted against the outer edge of the base (1), and the heat dissipation cavity surrounds the installation cavity (12) and is communicated with the outside through meshes in the protection net (8).

6. The electric heater of claim 1, wherein: the heat conduction sleeve is characterized in that an upper opening (31) and a lower opening (32) are formed in two ends of the heat conduction sleeve (3), the end faces of the upper heat insulation layer (6) and the lower heat insulation layer (5) are provided with an upper limiting step (61) and a lower limiting step (51) corresponding to the upper opening and the lower opening respectively, and the upper opening and the lower opening of the heat conduction sleeve (3) are sleeved with the upper limiting step and the lower limiting step respectively to achieve installation of the heat conduction sleeve (3).

7. The electric heater of claim 6, wherein: the upper heat insulation layer (6) and the lower heat insulation layer (5) are respectively composed of an upper heat insulation plate (62), a lower heat insulation plate (64) and a heat insulation cotton layer (63) clamped between the upper heat insulation plate (62) and the lower heat insulation plate (64).