CN216481596U - An electric heating mechanism and heater - Google Patents

Abstract

The utility model relates to an electric heating mechanism, which comprises a plurality of graphene heating plates arranged at intervals and having spaced gaps. The graphene heating plate comprises a substrate and a graphene coating layer coated on at least one side of the substrate. Electrodes are provided at both ends of the ene heating plate. It also relates to a fan heater, which includes the above-mentioned electric heating mechanism, and the interval between the graphene heating plates in the electric heating mechanism is an air passage; one side of the electric heating mechanism is provided with a fan. Adopting the mechanism and the heater of the utility model has the advantages of high heating temperature, fast heating speed, fast cooling speed, energy saving and environmental protection. Compared with the existing PTC heating sheet heater, the heater of the utility model has the advantages of small wind resistance (large air volume) and fast wind speed. Compared with the products of the same power, the weight of the heater of the present utility model is only one-fourth of the weight. One or so.

Description

An electric heating mechanism and heater

technical field

The utility model relates to a heater, in particular to an electric heating mechanism and a heater.

Background technique

In winter, when the temperature is cold, it is necessary to use heaters or air conditioners to heat and keep the human body warm. However, at present, the corresponding heaters or air conditioners are bulky, bulky and inconvenient, and the heating can only be used for heating in a large area or a large area, but not in a large area. Localized heating of an area.

In order to solve this problem, the Chinese utility model patent specification (authorized announcement number: CN20470406U) discloses a desktop heater. It consists of a plastic front shell, a louvered air outlet, an air heater, a centrifugal fan and a plastic base. The plastic front case is provided with a power indicator light, a temperature control switch and a gear switch, and the louvered air outlet is connected to the plastic front case through the air outlet bracket installation to prevent debris from entering the interior of the desktop heater. The destruction of the heater and the adjustment of the wind direction. The air heater is composed of a spiral finned tube and a heating element. The air heater and centrifugal fan are installed in the plastic front shell and fixed with the plastic base, the air blower is forced to convection, the heating plate generates heat, the air heater dissipates heat, and then the centrifugal fan is sent out through the louvered air outlet to make the air temperature. temperature can be adjusted. The heating sheet adopts PTC ceramics, which has the advantages of rapid heating and good heating effect. When in use, place the desktop heater in a fixed position on the table, the temperature control switch sets the temperature, the gear switch selects the power, and the power indicator light is on to indicate that the desktop heater starts.

However, the heating temperature of the existing PTC heating sheet is limited (up to 300°C, and self-adhesive damage will occur if it exceeds 315°C), and the heating rate during use and the cooling rate when turned off are slow, resulting in high power consumption of the product. .

Utility model content

The purpose of this utility model is to provide an electric heating mechanism and a fan heater, which mainly solve the problems existing in the above-mentioned prior art. The mechanism and fan heater of the present utility model have the advantages of high heating temperature, fast heating rate, fast cooling rate and energy saving. Compared with the existing PTC heating sheet heater, the fan heater of the present invention has the advantages of small wind resistance (the wind resistance is reduced by about 50%), large air volume, and fast wind speed (the wind speed is increased by about 50%). Compared with products of high power, the weight of the heater of the utility model is only about one-fourth.

For solving the above-mentioned technical problems, the technical scheme of the present utility model is as follows:

An electric heating mechanism is characterized in that: it includes several graphene heating plates arranged at intervals and having spaced gaps, the graphene heating plate includes a substrate and a graphene coating layer coated on at least one side of the substrate, the graphite Electrodes are provided at both ends of the ene heating plate.

The electric heating mechanism is characterized in that: the substrate is a mica sheet, a glass-ceramic plate, a ceramic plate or a high borosilicate glass plate.

The electric heating mechanism is characterized in that: graphene electrodes are arranged at both ends of the graphene heating plate.

A heater is characterized in that: it comprises the above-mentioned electric heating mechanism, and the interval between the graphene heating plates in the electric heating mechanism is an air passage; one side of the electric heating mechanism is provided with a fan.

The described heater is characterized in that: the outer ends of each graphene heating plate of the electric heating mechanism are provided with a holding fixture for fixing each graphene heating plate or maintaining an interval gap.

The said heater is characterized in that: the electric heating mechanism is electrically connected with the power source by holding the fixing member.

The said heater is characterized in that: the holding and fixing member adopts a spring.

The heater is characterized in that: the heater has a heater body, one end of the heater body is connected to the heater air inlet cover, and the other end is connected to the heater air outlet front cover; the heater body, the heater A fan and an electric heating mechanism are arranged in the accommodating space formed between the air inlet cover and the air outlet front cover of the heater.

The said heater is characterized in that: the electric heating mechanism is fixed between the fixed upper frame and the fixed lower frame and placed in the accommodating space.

The said heater is characterized in that: the body of the heater is connected with a handle bracket.

Compared with the prior art, the utility model has the following advantages:

1, the electric heating mechanism of the present utility model comprises the graphene heating plate that is arranged at intervals and has an interval, the graphene heating plate comprises a substrate and a graphene coating layer coated on at least one side of the substrate, the graphene Electrodes are provided at both ends of the heating plate. Because the graphene material has high heating efficiency, the electric heating mechanism of the present utility model has the advantages of high heating temperature, fast heating speed, fast cooling speed, energy saving, environmental protection, etc. advantage.

2. The heater of the present utility model has the electric heating mechanism with the above-mentioned characteristics. Compared with the existing PTC heating sheet heater, it has the advantages of small wind resistance (large air volume) and fast wind speed. The weight of the utility model heater is only about a quarter of that of the PTC heater.

3. The heater of the present utility model, with the electric heating mechanism of the above-mentioned characteristics, not only possesses the same advantages, but also enables each graphene heating plate to be quickly connected and maintains a reasonable interval through the structural setting, and simultaneously ensures that each graphene heating plate is heated. Stable electrical connection of the board to the circuit (power supply).

4. The heater of the present invention also has a structural layout suitable for the rapid high-temperature heating performance of the graphene heating plate, which prolongs the service life of the product.

Description of drawings

FIG. 1 is a schematic structural diagram of the electric heating mechanism of the present invention.

FIG. 2 is a schematic structural diagram of a preferred embodiment of the heater of the present invention.

In the picture: 1- The front cover of the heater; 2- The upper frame is fixed; 3- The graphene heating plate; 4- The temperature control insurance device; 5- The fixed spring; Fan body; 9-handle bracket; 10-handle fixed shaft; 11-heater air inlet cover; 12-circuit board; 13-key switch; 14-key; 15-display light.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Please refer to FIG. 1 , the utility model discloses an electric heating mechanism. As shown in the figure: it includes a number of graphene heating plates 3 arranged at intervals and having spaced gaps, the graphene heating plate 3 includes a substrate and a graphene coating layer coated on at least one side of the substrate, the graphene heating plate 3 Electrodes are provided at both ends of 3. As a more preferred solution, each graphene heating plate 3 is arranged in parallel with an interval.

As an alternative, the substrate is a mica sheet or a glass-ceramic plate or a ceramic plate or a borosilicate glass plate. Among them, mica flakes are preferred.

As an optional method, graphene electrodes are arranged at both ends of the graphene heating plate 3, and of course, it can also be silver paste.

In order to keep several parallel graphene heating plates 3 set at intervals, the outer end of each graphene heating plate 3 has a holding fixture 5 for fixing each graphene heating plate 3 or maintaining the interval gap. At the same time, the electric heating mechanism is electrically connected to the power source by holding the fixing member 5 . As a preferred way, the holding fixture 5 adopts a spring, and the metal spring can not only realize that several parallel graphene heating plates 3 are set at intervals, but also can make the electric heating mechanism realize electrical connection with the power supply (circuit) through the spring.

As an embodiment, the graphene heating plate 3 of the electric heating mechanism adopts a mica sheet with a thickness of 10 microns, and the mica sheet is coated with graphene coating on both sides, and graphene electrodes are provided at both ends. Compared with the electric heating mechanism made by the traditional PTC heating sheet of the same specification.

(1) The maximum heating temperature of this embodiment is greater than 400°C, and the PTC is 300°C. If it exceeds 315°C, self-adhesive damage will occur.

(2) The heating time from room temperature to 200°C (calculated at 2 watts per square meter), this example is 10 seconds, and the PTC is 20-40 seconds.

(3) Natural cooling time at 200°C-room temperature (calculated at 2 watts per square meter), this example is 30 seconds, and the PTC is 60-120 seconds.

(4) Compared with the energy consumption controlled at a heating temperature of 100°C and maintained for 1 hour, this embodiment saves 50% of the PTC in the same time as the electricity consumption.

Please refer to FIG. 2 , which is a schematic structural diagram of a preferred embodiment of the fan heater of the present invention. As shown in the figure: it includes the above-mentioned electric heating mechanism, and the interval between the graphene heating plates 3 in the electric heating mechanism is an air passage; one side of the electric heating mechanism is provided with a fan 7.

When in use, the utility model can realize rapid heating after electrification through its electric heating mechanism, and then blow the hot air out from the air passage between the graphene heating plates 3 through the fan to realize the warm air effect.

In the present invention, the outer end of each graphene heating plate 3 of the electric heating mechanism is provided with a holding fixture 5 for fixing each graphene heating plate 3 or maintaining an interval. Make electrical connections.

As a preferred way, the retaining and fixing member 5 adopts a spring, the metal spring has a simple structure and low cost, and can be quickly connected with each graphene heating plate 3 at the same time, and realizes that several graphene heating plates 3 are set at intervals, and at the same time The electric heating mechanism can also be electrically connected to a power source (circuit) through a spring.

The heater of the utility model has a heater body 8, one end of the heater body 8 is connected to the heater air inlet cover 11, and the other end is connected to the heater air outlet front cover 1; the heater body 8, the heater air inlet cover 1; 11. A fan 7 and an electric heating mechanism are arranged in the accommodating space formed between the air outlet front covers 1 of the heater. As a preferred way, the heater body 8 is in the shape of a conical cylinder, the heater inlet cover 11 and the fan 7 are arranged at the end with a smaller inner diameter, and the electric heating mechanism and the heater outlet front cover 1 are arranged at the end with a larger inner diameter. At one end, it can reasonably guide the wind and help the heated air to spread out quickly.

Since the electric heating mechanism has the characteristics of fast heating and high heating temperature, the electric heating mechanism of the present invention is fixed between the fixed upper frame 2 and the fixed lower frame 6 and placed in the accommodating space, and the fixed upper frame 2 and the fixed lower frame 6 can be made of more heat-resistant materials, which can effectively protect the heater body 8, the heater air inlet cover 11, and the heater air outlet front cover 1 and prolong its service life.

In the present invention, the heater body 8 is connected with a handle bracket 9 through the handle fixing shaft 11, which is convenient for carrying and carrying.

In the present invention, the heater body 8 is further provided with a circuit board 12, the electric heating mechanism and the driving and control circuit of the fan 7 are arranged on the circuit board 12, and the circuit board 12 is further connected to display the electric heating mechanism and the drive and control circuit of the fan 7. The display lamp 15 for the running state of the fan 7, the key switch 13 and the key 14 for controlling the operation of the electric heating mechanism and the fan 7, and the temperature control insurance device 4 for controlling the safety of the electric heating mechanism. Of course, the key switch 13 , the key 14 and the display light 15 are all arranged on the surface of the heater body 8 .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (8)

1. An electric heating mechanism, characterized in that: the graphene heating plate comprises a plurality of graphene heating plates (3) which are arranged at intervals and have intervals, wherein each graphene heating plate (3) comprises a substrate and a graphene coating layer coated on at least one side surface of the substrate, and electrodes are arranged at two ends of each graphene heating plate (3); the outer end of each graphene heating plate (3) is provided with a holding fixing piece (5) for fixing each graphene heating plate (3) or keeping a spacing gap, and the electric heating mechanism is electrically connected with a power supply through the holding fixing piece (5).

2. The electrical heating mechanism of claim 1, wherein: the substrate is a mica sheet, a microcrystalline glass plate, a ceramic plate or a high borosilicate glass plate.

3. The electrical heating mechanism of claim 1, wherein: the two ends of the graphene heating plate (3) are provided with graphene electrodes.

4. A fan heater, its characterized in that: the graphene heating plate comprises an electric heating mechanism according to claim 1, 2 or 3, wherein the interval gap between every two graphene heating plates (3) in the electric heating mechanism is an air passing channel; one side of the electric heating mechanism is provided with a fan (7).

5. The fan heater according to claim 4, wherein: the holding fixture (5) is a spring.

6. The fan heater according to claim 4, wherein: the warm air blower is provided with a warm air blower body (8), one end of the warm air blower body (8) is connected with a warm air blower air inlet cover (11), and the other end of the warm air blower body is connected with a warm air blower air outlet front cover (1); set up fan (7) and electrical heating mechanism in the accommodation space that forms between this electric fan heater fuselage (8), electric fan heater air inlet cover (11), electric fan heater air-out protecgulum (1).

7. The fan heater according to claim 6, wherein: the electric heating mechanism is fixed between the fixed upper frame (2) and the fixed lower frame (6) and is placed in the accommodation space.

8. The fan heater according to claim 6, wherein: the body (8) of the warm air blower is connected with a handle bracket (9).

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