Heat accumulating type electric heater

Abstract

The utility model discloses a heat accumulating type electric heater which comprises a shell, a heat preservation layer arranged on the inner side of the shell, an electric heating body arranged on the inner side of the heat preservation layer and heat accumulating bricks, the heat accumulating bricks are tightly attached to the electric heating body, and a ventilation and heat dissipation area is arranged on the upper portion of the heat preservation layer and comprises an air door. The shell is provided with a heat dissipation window corresponding to the air door; the electric heating body comprises a metal substrate, a rare earth thick film dielectric layer and a circuit, wherein the rare earth thick film dielectric layer and the circuit are arranged on the metal substrate in a coating mode. And a heat-conducting medium is arranged around the electric heating body. The heat accumulating type electric heater has the characteristics of energy conservation, environmental protection, corrosion resistance, long service life, water conservation, balanced heating, rapid heat conduction, high efficiency, freezing prevention, safety and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection and energy-saving equipment, and in particular relates to a heat storage type electric heater. Background Art

[0002] Heating can be divided into water heating and gas heating. Usually, the radiator we refer to is water heating, which uses a wall-mounted boiler or boiler to heat circulating water, and then connects it to the radiator through a pipe. Finally, the radiator outputs the appropriate temperature to form an indoor temperature difference, and finally performs a heat cycle to evenly increase the temperature of the entire room. Gas heating heats the air, and the cold air is heated by the radiator into hot air. The hot air rises and forms convection with the cold air in the room. The cold air circulates to the vicinity of the heater and is heated into hot air. The hot air circulates in the house, and the room becomes warm.

[0003] Traditional heaters all use coal as a heat source. In order to respond to the requirements of environmental protection policies such as reducing coal consumption and building clean energy, and to effectively improve air quality, combined with the needs of the "coal to electricity" project, the utility model provides a heating product suitable for "coal to electricity" and energy saving and environmental protection - a heat storage electric heater, which is used to replace traditional coal stoves for heating and meet the different needs of people for heating in winter. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a heat storage electric heater which has a simple structure, high combustion efficiency, safety and environmental protection.

[0005] The technical solution of the utility model is: a heat storage electric heater, comprising an outer shell, a heat preservation layer arranged on the inner side of the outer shell, an electric heating body and heat storage bricks arranged on the inner side of the heat preservation layer, and the heat storage bricks are arranged in close contact with the electric heating body; the electric heating body comprises a metal substrate, a rare earth thick film dielectric layer and a circuit coated on the metal substrate, and the electric heating body is surrounded by a heat conductive medium.

[0006] Furthermore, the electric heating element is composed of a plurality of electric heating elements arranged in parallel, and the heat storage brick is arranged in the gap between two adjacent electric heating elements or in the gap between the electric heating element and the thermal insulation layer.

[0007] Furthermore, the heat storage brick is a ceramic heat storage body.

[0008] Furthermore, a bracket for installation and fixing is also provided on the shell.

[0009] Furthermore, the shell is divided into a high temperature zone and a low temperature zone according to different temperatures, and the high temperature zone is set to be colorful.

[0010] Furthermore, the thermal storage electric heater also includes a current limiter connected to the electric heating body, and the current limiter is connected to the circuit of the heating body.

[0011] Furthermore, the metal substrate is a galvanized sheet, and the thickness of the galvanized sheet is 3-5 mm.

[0012] Furthermore, the thickness of the rare earth thick film dielectric layer is 60-100 microns, the circuit includes a multi-layered rare earth thick film circuit, the thickness of a single layer of rare earth thick film circuit is 0.1-1 mm, and each layer is separated by a rare earth thick film dielectric layer.

[0013] Furthermore, the heat conducting medium is water or oil.

[0014] The beneficial effects of the utility model: the above-mentioned heat storage electric heater has the characteristics of energy saving and environmental protection, corrosion resistance, long service life, water saving, balanced heating, rapid heat conduction, high efficiency, antifreeze, safety and the like.

[0015] Under the premise of ensuring good heating, the operating costs are very low, the heating effect is close to that of water heating but without the worries of running, bubbling, dripping or leaking, so the service life is longer; it is easy to install, without the need for complicated engineering design and construction, which greatly shortens the construction time of the heating system, reduces cumbersome approval procedures, and effectively reduces construction costs.

[0016] The heating body is heated at a constant temperature, does not scale, has a fast heat conduction speed, and has a high heat transfer efficiency.

[0017] It adopts water-electricity separation technology, has multiple isolation, anti-leakage, anti-dry burning, anti-overheating, low-temperature antifreeze and other protection functions, long life and corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the heat storage electric heater of the utility model. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail with reference to the accompanying drawings.

[0020] See also Figure 1 A heat storage electric heater comprises a shell 10, a heat preservation layer 20 arranged on the inner side of the shell 10, an electric heating body 30 and a heat storage brick 40 arranged on the inner side of the heat preservation layer 20, wherein the heat storage brick 40 is arranged close to the electric heating body 30; the electric heating body comprises a metal substrate 32, a rare earth thick film dielectric layer 33 coated on the metal substrate and a circuit 31, and a heat conductive medium is arranged around the above electric heating body.

[0021] The electric heating element is composed of several electric heating elements arranged in parallel, and the heat storage brick is arranged in the gap between two adjacent electric heating elements or in the gap between the electric heating element and the insulation layer. The heat storage brick is a ceramic heat storage element. The outer shell is also provided with a bracket for installation and fixation, and the heat storage electric heater can be installed and fixed on the wall by means of the bracket. The outer shell is divided into a high temperature zone and a low temperature zone according to different temperatures. The high temperature zone is set in color for distinction, which can first serve as a warning to inform the user that this is a high temperature area and cannot be touched for a long time to avoid burns; in addition, it plays a role in protecting the panel, and will not turn yellow under long-term high-temperature baking, maintaining the appearance of the equipment, and is very popular with users. The heat storage electric heater also includes a current limiter connected to the electric heating element, and the current limiter is connected to the circuit of the heating element. The metal substrate is a galvanized sheet, and the thickness of the galvanized sheet is 3-5mm. The thickness of the rare earth thick film dielectric layer is 60-100 microns, the circuit comprises a multi-layered rare earth thick film circuit, the thickness of a single layer of rare earth thick film circuit is 0.1-1 mm, and each layer is separated by a rare earth thick film dielectric layer. The heat conducting medium is water or oil.

[0022] Example 1

[0023] In the above-mentioned thermal storage electric heater, the thickness of the galvanized sheet is 3 mm, the thickness of the rare earth thick film dielectric layer is 100 microns, the thickness of the single-layer rare earth thick film circuit is 0.1 mm, and the heat-conducting medium is water.

[0024] Example 2

[0025] Similar to Example 1, the thickness of the galvanized sheet is 5 mm, the thickness of the rare earth thick film dielectric layer is 60 microns, the thickness of the single-layer rare earth thick film circuit is 1 mm, and the heat conducting medium is oil.

[0026] Example 3

[0027] Similar to Example 1, the thickness of the galvanized sheet is 4 mm, the thickness of the rare earth thick film dielectric layer is 80 microns, the thickness of the single-layer rare earth thick film circuit is 0.5 mm, and the heat-conducting medium is oil.

[0028] Example 4

[0029] Similar to Example 2, the thickness of the galvanized sheet is 3 mm, the thickness of the rare earth thick film dielectric layer is 90 microns, the circuit includes multiple layers of superimposed rare earth thick film circuits, the thickness of a single layer of rare earth thick film circuit is 0.1-1 mm, and the heat conductive medium is water or oil.

[0030] Example 5

[0031] Similar to Example 1, the thickness of the galvanized sheet is 3.5 mm, the thickness of the rare earth thick film dielectric layer is 70 microns, the thickness of the single-layer rare earth thick film circuit is 0.4 mm, and the heat-conducting medium is oil.

[0032] Example 6

[0033] Similar to Example 1, the thickness of the galvanized sheet is 4.5 mm, the thickness of the rare earth thick film dielectric layer is 90 microns, the thickness of the single-layer rare earth thick film circuit is 0.8 mm, and the heat-conducting medium is oil.

[0034] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art may make several changes without departing from the scope of the present invention. Therefore, the structures contained in the above description and shown in the accompanying drawings should be regarded as illustrative rather than limiting the scope of protection of the present invention.

Claims

1. A heat storage electric heater, characterized in that: It includes an outer shell, a heat-insulating layer arranged on the inner side of the outer shell, an electric heating body and a heat storage brick arranged on the inner side of the heat-insulating layer, wherein the heat storage brick is arranged close to the electric heating body; the electric heating body includes a metal substrate, a rare earth thick film dielectric layer and a circuit coated on the metal substrate; a heat-conducting medium is arranged around the electric heating body; the heat storage brick is a ceramic heat storage body; the heat-conducting medium is water or oil; the heat storage electric heater also includes a current limiter connected to the electric heating body, and the current limiter is connected to the circuit of the heating body.

2. The thermal storage electric heater according to claim 1, characterized in that: The electric heating body is composed of a plurality of electric heating bodies arranged in parallel, and the heat storage brick is arranged in the gap between two adjacent electric heating bodies or in the gap between the electric heating body and the heat preservation layer.

3. The thermal storage electric heater according to claim 1, characterized in that: The shell is also provided with a bracket for installation and fixing.

4. The thermal storage electric heater according to claim 1, characterized in that: The shell is divided into a high temperature zone and a low temperature zone according to different temperatures, and the high temperature zone is set to be colorful.

5. The thermal storage electric heater according to claim 1, characterized in that: The metal substrate is a galvanized sheet, and the thickness of the galvanized sheet is 3-5 mm.

6. The thermal storage electric heater according to claim 1, characterized in that: The thickness of the rare earth thick film dielectric layer is 60-100 microns. The circuit comprises a multi-layered rare earth thick film circuit. The thickness of a single layer of the rare earth thick film circuit is 0.1-1 mm. Each layer is separated by a rare earth thick film dielectric layer.

Images