CN209840241U - Electric heater - Google Patents

Abstract

The utility model discloses an electric heater, including heating tube and bowl, the light that the heating tube transmitted is to all around through the reflection of bowl, has the safety cover in the preceding of bowl, blocks the heat that the bowl reflection was come, and safety cover top and bottom are equipped with heat radiation window. The heating tube comprises a red quartz tube, heating materials are arranged in the red quartz tube, and the quartz tube is a vacuum quartz tube or a quartz tube filled with inert gas. The black carbon fiber is heated to emit light much weaker than that of a halogen tube, and the white light filtered by the red quartz is added, so that the light of the whole red quartz heating body becomes soft and is not dazzling. The radiation direction of the reflector is provided with a protective cover, so that the direct radiation of the heating light is prevented. From the perspective of energy, the blocked light is only partial infrared light, and the blocked light heats the cover or the cavity, so that the cover or the cavity is used as a radiation source, heat radiation and conduction are carried out, and the total energy of the space is not damaged.

Description

Electric heater

Technical Field

The utility model relates to an electric warming equipment technical field particularly, relates to an electric heater.

Background

The electric heater is an electric appliance for converting electric energy into heat energy and is mainly used for warming rooms in cold.

There are three main types of heaters on the market today: an electric heating oil lamp, an electric heating small sun warmer and a table type warm air blower. The heating material mainly comprises a metal electric heating wire, an electric heating tube, a halogen tube, a carbon tube, an electric heating film, a PTC ceramic heating element and carbon crystals. From the energy conversion perspective, electrical energy is converted into thermal energy. Various heaters respectively have advantages and disadvantages in terms of power consumption, energy efficiency ratio, heat transfer efficiency, noise and service life, and various heaters have own differences in shapes.

The small solar heater has the advantages of low price, high heat energy conversion heating efficiency and high heat transfer efficiency, and is popular among consumers as a popular heater. The small solar heater is used for heating from the earliest exposed resistance wire and ceramic as heating bodies, to the electric heating pipe, to the halogen pipe heater and to the carbon pipe. The heat transfer efficiency is greatly improved from the service life.

The small solar structures on the market at present have one characteristic and all have reflecting mirror surfaces. The heat emitted by the heating source is reflected by the emitting surface to radiate heat energy outwards. The reflecting surface is typically made as a concave mirror. After being reflected by the concave mirror or the concave groove, the emitted light is approximately equal to parallel light and can only irradiate towards a certain direction, and is not hot in other directions. If the irradiation is required to be carried out in different directions, the horizontal rotation is realized by shaking the head.

The existing small solar heater mainly has the following two defects:

1. the little sun has strong heat energy concentration, the external energy is concentrated, and the heat is very high in the place where the little sun is baked. The water is roasted at a close distance all the time, so that the water is evaporated to cause dryness, the temperature is very high, the water is easy to burn and even cause combustion, and the household fire hazard is caused. Therefore, people must be kept watch when using the device.

2. The heat generated by the small sun is accompanied by light, including strong visible light, which affects the health and rest of the human eyeball. Especially, when the utility model is used at night, it can emit strong light and illuminate the room, which is not good for healthy rest at night.

For these reasons, this limits the place and time of use of the small solar warmer.

Disclosure of Invention

The utility model aims at providing an electric heater, the effectual safety and the people's health problem that has solved present little sun room heater light and too strong leads to

An embodiment of the utility model provides an electric heater, including heating tube and bowl, the light that the heating tube transmitted is to all around through the reflection of bowl, has the safety cover in the front of bowl, blocks the heat that the bowl reflection was come, and safety cover top and bottom are equipped with the heat dissipation window.

Furthermore, the heating tube comprises a red quartz tube, heating materials are arranged in the red quartz tube, and the quartz tube is a vacuum quartz tube or a quartz tube filled with inert gas.

Furthermore, a baffle plate is arranged above the heat dissipation window.

Further, the heating material is carbon fiber or tungsten wire.

Furthermore, the protective cover is provided with a window in the radiation direction, and the window is a strip window, a fan-shaped window, a fixed shutter, a movable shutter, a sliding window or a fan-shaped rotating window.

Furthermore, heat dissipation openings are formed in two sides of the protective cover.

Further, the outside of safety cover or whole electric heater is equipped with the device that is used for preventing scalding.

The utility model provides an electric heater has following advantage:

1. the black carbon fiber is much weaker than the halogen tube in light emission after being heated, and the red quartz filters white light, so that the light of the whole red quartz heating body becomes soft and is not dazzling.

2. The radiation direction of the reflector is provided with a protective cover, so that the direct radiation of the heating light is prevented.

3. The top and the bottom of the protective cover are provided with heat dissipation windows, so that hot air at the top can ascend and flow out, and cold air is supplemented from the bottom.

4. The middle of the protective cover, which is opposite to the reflecting cover, is provided with a shutter which can be opened and closed. The shutter or sliding window can be closed when needed, such as at night. And the shutter or the sliding window can be opened in the daytime.

5. From the perspective of energy, the blocked light is only partial infrared light, and the blocked light heats the cover or the cavity, so that the cover or the cavity is used as a radiation source, heat radiation and conduction are carried out, and the total energy of the space is not damaged.

Drawings

Fig. 1 is a schematic side sectional view of an embodiment of the electric heater of the present invention.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention.

Referring to fig. 1, in an embodiment of the present invention, the electric heater includes a heating tube 2 and a reflector 1, light emitted from the heating tube 2 is reflected by the reflector 1 to all around, a protective cover 3 is arranged in front of the reflector 1 to block heat reflected from the reflector 1, and heat dissipation windows 4 are arranged on the top and bottom of the protective cover. The protective cover 3 prevents the radiation of thermal energy which is transferred in a radiation and thermal convection manner from the position of the heat dissipation window 4 on the top of the protective cover 3.

In an embodiment of the present invention, the heating tube 2 comprises a red quartz tube, and a heating material is disposed in the tube, and the quartz tube is a vacuum quartz tube or a quartz tube filled with inert gas. The heat generating material may be carbon fiber or tungsten filament. The white light is filtered out by the red quartz, so that the light of the whole red quartz heating body becomes soft and is not dazzling.

Referring to fig. 1, in an embodiment of the present invention, the electric heater may further include a reflector 1, the radiant light of the heat light emitted from the heating tube 2 after being reflected by the reflector 1 is provided in the radiation direction of the reflector 1, and the radiant heat emitted from the emitting tube 2 is blocked from the radiation direction by a protective cover 3; windows 4 are formed at the top, bottom or left and right sides of the protective cover 3, and the protective cover prevents radiation of heat energy. The front surface of the protective cover is provided with a fixed shutter, or a shutter capable of being opened or a sliding window. When the shutter is opened, the heat energy is directly radiated out, and when the shutter is closed, the heat energy cannot be directly radiated out. When closed, heat can be transferred out of the heat dissipation window position on the top of the protective cover in a radiation and heat convection mode.

In terms of energy, the light of the blocked infrared light also heats the cover, the cover is used as an emission source, and then the heat radiation and conduction are carried out, and the total energy of the space is not damaged.

Referring to fig. 1, in an embodiment of the present invention, the protective cover 3 may be made of aluminum. Above the top window 4 a baffle 5 may be provided. The baffle 5 can be made of aluminum, the baffle 5 blocks the rising heat energy, the heat transfer direction is changed again, and the hot air flow is radiated out from the gap space between the baffle 5 and the window 4.

The utility model discloses an in the embodiment, the outside of safety cover 3 can be equipped with and be used for preventing the device of scalding, increases the security of electric heater.

The utility model discloses an embodiment, safety cover 3 can be equipped with the window in the radiation direction, is equipped with the shutter or the austral window, sliding sash of switch on the window.

The utility model discloses an in the embodiment, safety cover 3 is equipped with fixed shutter, active shutter or austral window, sliding sash. The opening size of the window can be adjusted, the shape of the window can be a strip-shaped shutter or a strip-shaped sliding window, and the direction can be horizontal or vertical. The window is opened, and the heat energy can be directly radiated out. When the window is closed, the direct radiation mode of the heat energy is closed, and the heat energy can be radiated from the top window of the window.

Although the present invention has been described in detail with reference to the preferred embodiments, the present invention is not limited to the embodiments. It should be understood by those skilled in the art that various additions, substitutions and substitutions of the same contents in the field may be made to the technical features and ranges of the present invention without departing from the technical features and ranges of the present invention.

Claims (7)

1. The utility model provides an electric heater, includes heating tube and bowl, the light that the heating tube transmitted is to around through the reflection of bowl, its characterized in that has the safety cover in the front of bowl, blocks the heat that the bowl reflection was come, safety cover top and bottom are equipped with the heat dissipation window.

2. The electric heater of claim 1, wherein: the heating tube comprises a red quartz tube, heating materials are arranged in the red quartz tube, and the quartz tube is a vacuum quartz tube or a quartz tube filled with inert gas.

3. The electric heater according to claim 1 or 2, characterized in that: and a baffle plate is arranged above the heat dissipation window.

4. The electric heater of claim 2, wherein: the heating material is carbon fiber or tungsten filament.

5. The electric heater according to claim 1 or 2, characterized in that: the protective cover is provided with a window in the radiation direction, and the window is a strip window, a fan-shaped window, a fixed shutter, a movable shutter, a sliding window or a fan-shaped rotating window.

6. The electric heater according to claim 1 or 2, characterized in that: and heat dissipation ports are formed in two sides of the protective cover.

7. The electric heater according to claim 1 or 2, characterized in that: the outside of safety cover or whole electric heater is equipped with the device that is used for preventing scalding.