CN200950676Y - Electromagnetic heating device - Google Patents

Abstract

The utility model provides a higher thermal efficient electromagnetic heating device, which comprise a soft magnet and a coil located between two magnets. The coil and the soft magnets are embedded in a groove of a bracket; the outer surface of the bracket is provided with a raised support foot. Due to the utility modeladopting the bracket to fix the soft magnets and the coil, the inner core soft magnet and the outer soft magnet and all the heating components are exposed; so that a heating body can fully contact with a heated liquid to greatly improve thermal the efficiency of heat exchange. At the same time, two soft magnets issued by the heat can be fully utilized to increase heat exchange efficiency. At the same time, the heating sent out by the two soft magnets can be fully utilized in order to improve heat efficiency.

Description

Electromagnetic heating device

technical field

The utility model relates to an electromagnetic device, in particular to a device which utilizes electromagnetic effects to generate heat energy.

Background technique

The application of electromagnetic technology is very extensive, especially as a technology for generating heat energy, it has penetrated into many application fields. Such as household induction cooker, industrial smelting induction cooker, etc. have been widely used. However, due to the limitation of the structure, the domestic induction cooker only utilizes the magnetic flux on the upward side to generate heat energy, and the bottom surface does not contact with the pot. The magnetic flux generated at the bottom is limited to generate heat, so that the heat energy is wasted. Therefore, the electromagnetic energy is not fully utilized, and the thermal efficiency is not high.

Contents of the invention

The purpose of the utility model is to overcome the defects of the prior art and provide an electromagnetic heating device with higher thermal efficiency.

The technical solution of the utility model is: it is composed of a soft magnet and a coil located between the two soft magnets, the coil and the soft magnet are both embedded in the groove of the bracket, and the outer surface of the bracket is provided with raised feet.

The coil is provided with an inner core soft magnet.

An outer ring soft magnet is arranged on the periphery of the coil.

The coil may be any one of a coil group, a wire package or a coil disk.

The surfaces of the coils, the soft magnets, the inner core soft magnets and the outer ring soft magnets all have high-temperature-resistant, heat-conducting, and waterproof insulating materials.

Because the utility model adopts brackets to fix the soft magnets, coils, inner core soft magnets and outer ring soft magnets overhead, and expose all heating components. Therefore, the heating element can fully contact the heated liquid, which greatly improves the heat exchange efficiency. At the same time, the alternating magnetic flux generated by the coil and the heat emitted by the soft magnet can be fully utilized, thereby improving the thermal efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a view along the direction A of Fig. 1 .

Detailed ways

As shown in Fig. 1 and Fig. 2, the utility model is composed of a soft magnet 1 and a coil 3 positioned between the two soft magnets 1. Both the coil 3 and the soft magnet 1 are embedded in the grooves of a plurality of brackets 2, and the brackets 2 are provided with a plurality of protruding feet in all directions on the outside. Take the utility model as an example when the utility model is used as the inner core of a heating furnace: when the utility model is placed in a container made of electromagnetic shielding material as a heating core, the legs on each bracket 2 are in interference fit with the inner wall of the container, thereby The function of supporting and fixing makes the utility model suspended in the container, and each heat-generating component can fully exchange heat with the liquid in the container. In order to make full use of the magnetic flux inside, outside and both ends of the coil 3 to generate eddy currents to obtain heat energy, an inner core soft magnet 4 is provided in the coil 3, and an outer ring soft magnet 5 is provided on the periphery of the coil 3. The coil 3 can also be composed of multiple single coils. To form a coil group, the center of the coil group and the center of each single coil can also be provided with an inner core soft magnet 4. In order to ensure reliable operation, the surfaces of the coil 3, the soft magnet 1, the inner core soft magnet 4, and the outer ring soft magnet 5 are all coated with high-temperature-resistant, heat-conducting, and waterproof insulating materials. Such as: epoxy resin, polyethylene, PVC plastic or aluminum oxide, etc. The high-frequency alternating current is connected to the coil 3, and thereafter, due to the action of the high-frequency alternating current, the coil 3 generates a high-frequency alternating magnetic flux, and the soft magnet 1, the inner core soft magnet 4, and the outer ring soft magnet 5 Under the action of the alternating magnetic flux, it is assimilated, multiplying the magnetic flux of the coil 3, and generating eddy current to generate heat at the same time. The liquid is heated on the surface of the soft magnet 1, the inner core soft magnet 4, the outer ring soft magnet 5 and the coil 3, and convects from the gap of the bracket, and finally makes the overall temperature of the liquid rise to achieve the purpose of heating. The used high-frequency alternating power supply of the utility model is known prior art, and the common technical personnel of the same trade all knows well, repeats no more. As a heating inner core, the utility model is suitable for all devices for heating liquid.

Claims (5)

1. An electromagnetic heating device, consisting of a soft magnet (1) and a coil (3) positioned between two soft magnets (1), is characterized in that: the coil (3) and the soft magnet (1) are all embedded In the groove of the bracket (2), the outer surface of the bracket is provided with raised legs. 2. The electromagnetic heating device according to claim 1, characterized in that: the coil (3) is provided with an inner core soft magnet (4). 3. The electromagnetic heating device according to claim 1, characterized in that an outer ring soft magnet (5) is provided on the periphery of the coil (3). 4. The electromagnetic heating device according to claim 1, characterized in that: the coil (3) can be any one of a coil group, a wire package or a coil disk. 5. The electromagnetic heating device according to claim 1, characterized in that: the surfaces of the coil (3), the soft magnet (1), the inner core soft magnet (4), and the outer ring soft magnet (5) all have High temperature resistant heat conduction waterproof insulation material.

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