[0019] The present invention will be further described below in conjunction with the drawings and specific implementations.
[0020] figure 1 The schematic diagram of the structure of the electric heater of the present invention is shown. Such as figure 1 As shown, the electric heater includes a heating element 1, a sealing body 2, a first sealing cover 3, and a second sealing cover 4, wherein the sealing body 2 includes an inner layer 2-1 and an outer layer 2-2. The heating element 1 is spirally arranged between the inner layer 2-1 and the outer layer 2-2 and close to the outer layer 2-2. When the heating element 1 generates heat, it will transfer heat to the As for the outer layer 2-2, the outer layer 2-2 can dissipate heat uniformly, and because the heating element 1 is spirally arranged, the heating element 1 generates heat evenly, rather than being limited to a certain place for heat dissipation , Making the heat efficient. The first sealing cover 3 is connected to the upper end of the sealing body 2, the first sealing cover 3 seals the upper end opening of the sealing body 2, and the second sealing cover 4 is connected to the sealing body 2. At the lower end of the body 2, the second sealing cover 4 seals the upper opening of the sealing body 2. The first sealing cover 3 and the second sealing cover 4 not only protect the heating element 1, but also make The heating element 1 generates heat well.
[0021] The electric heater of the present invention further includes: a third sealing cover 5, a fourth sealing cover 6 and a thermal insulation layer 7, such as figure 1 As shown, the first sealing cover 3 is connected to the third sealing cover 5, and the thermal insulation layer 7 is disposed between the first sealing cover 3 and the third sealing cover 5; The second sealing cover 4 is connected to the fourth sealing cover 6, the heat insulation layer 7 is arranged between the second sealing cover 4 and the fourth sealing cover 6, and the heat insulation layer 7 The light-emitting element 1 has the function of heat insulation, so that the heat emitted by the light-emitting element 1 will not escape from the upper and lower ends of the sealing body 2. The heat insulation layer 7 is generally made of thermal insulation cotton Manufactured, thermal insulation cotton can play a very good role in thermal insulation.
[0022] The electric heater of the present invention further includes a protective cover 8, such as figure 1 As shown, the protective cover 8 is disposed outside the sealing body 2, and the protective cover 8 protects the sealing body 2, thereby indirectly protecting the light-emitting element 1.
[0023] In the electric heater of the present invention, the first sealing cover 3, the second sealing cover 4, the third sealing cover 5 and the fourth sealing cover 6 are provided with corresponding central holes, such as figure 1 As shown, the screw 9 passes through the first sealing cover 3, the second sealing cover 4, the third sealing cover 5, and the fourth sealing cover 6 through these central holes. Each end is screwed with a nut 10, and the threaded connection of the screw 9 and the nut 10 makes the first sealing cover 3, the second sealing cover 4, the third sealing cover 5, the fourth sealing cover 6 and the The sealing bodies 2 are tightly connected together. The threaded connection is a detachable connection, so that it can be easily disassembled and connected, and damaged parts can be replaced easily.
[0024] In the electric heater of the present invention, the heating element 1 is connected to a power source, and the power source is used to heat the heating element 1. The power supply supplies current to the heating element 1 so that the heating element 1 can generate heat in a short time.
[0025] In the electric heater of the present invention, the heating element 1 is an electric stove wire or an electric heating tube. Electric furnace wires mainly include iron-chromium-aluminum alloy electric furnace wires and nickel-chromium alloy electric furnace wires. The former is an alloy material with ferrite structure, and the latter is an alloy material with austenitic structure. It is characterized by high temperature resistance, fast heating, and use. Long life, stable resistance, small power deviation, uniform pitch after stretching, bright and clean surface. Electric heating tube, also known as heating tube, heating tube, scientific name tubular electric heater element, is a coiled heating wire (resistance wire) placed in a metal tube. It has simple structure, high mechanical strength, high thermal efficiency, safety and reliability, and installation Features such as simplicity and long service life.
[0026] In the electric heater of the present invention, the protective cover 8 is provided with a velvet layer outside. The velvet layer is arranged on the outside of the protective cover 8 to prevent people from accidentally touching the electric heater and being burned.
[0027] In the electric heater of the present invention, the protective cover 8 is mesh-shaped. The protective cover 8 is arranged in a mesh shape, so that the protective cover 8 not only protects the sealing body 2 and the heating element 1, but also enables the heat emitted in the sealing body 2 to be quickly dissipated, thereby saving energy.
[0028] In the electric heater of the present invention, the sealing body 2, the first sealing cover 3 and the second sealing cover 4 are made of metal materials. The sealing body 2, the first sealing cover 3 and the second sealing cover 4 are made of metal materials, for example, aluminum, iron, or steel. Aluminum is a silver-white light metal with good ductility and can form an oxide film to prevent metal corrosion in moist air. Iron is a shiny silver-white metal, hard and ductile, with a melting point of 1535°C and a boiling point of 2750°C. It has strong ferromagnetism, good plasticity and thermal conductivity. Steel is a metal material with iron as the main element, carbon content is generally below 2.0% and other elements. Steel has better physical, chemical and mechanical properties than the original pig iron. The preferred material of the sealing body 2, the first sealing cover 3 and the second sealing cover 4 is steel.
[0029] In the electric heater of the present invention, the third sealing cover 5 and the fourth sealing cover 6 are made of metal materials. The third sealing cover 5 and the fourth sealing cover 6 are made of metal materials, such as aluminum, iron, or steel. Aluminum is a silver-white light metal with good ductility and can form an oxide film to prevent metal corrosion in moist air. Iron is a shiny silver-white metal, hard and ductile, with a melting point of 1535°C and a boiling point of 2750°C. It has strong ferromagnetism, and has good plasticity and thermal conductivity. Steel is a metal material with iron as the main element, carbon content is generally below 2.0% and other elements. Steel has better physical, chemical and mechanical properties than the original pig iron. The preferred material of the third sealing cover 5 and the fourth sealing cover 6 is steel.
[0030] The electric heater of the present invention is less affected by external cold air, heat efficiency is released efficiently, environmentally friendly, pollution-free, no radiation, simple and light in structure, convenient to move, and can be moved to places that need heating without being restricted by space.
[0031] It should be noted that the above-mentioned embodiments illustrate rather than limit the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be constructed as a limitation to the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of multiple such elements. The invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several devices, several of these devices may be embodied in the same hardware item. The use of the words first, second, and third does not indicate any order. These words can be interpreted as names.
