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Technique for power supply to air exhausing fan of electromagnetic stove

A power supply device and exhaust fan technology, which is applied in household heating, heating fuel, household stove/stove, etc., can solve problems such as short life, waste of electric energy, and loud motor noise, so as to improve service life, save electric energy, and improve work efficiency. The effect of longevity

Inactive Publication Date: 2006-04-05
陈梓平
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Problems solved by technology

In the prior art, the operation of the exhaust fan is basically a constant full power output, that is to say, as long as the induction cooker is working, the exhaust fan is always running at high speed. As we all know, the power output of the induction cooker will follow the user's will When it becomes larger or smaller, when it works at low power, the heat generation is small. At this time, the exhaust heat dissipation of the exhaust fan is obviously greater than the heat generation. waste

Method used

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  • Technique for power supply to air exhausing fan of electromagnetic stove
  • Technique for power supply to air exhausing fan of electromagnetic stove

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Embodiment Construction

[0007] As shown in the figure, mains power (220V / 50HZ), through fuse FUSE, current transformer T 1 Connect to rectifier bridge RP for rectification, inductance L, capacitance C 14 After filtering, a pulsating DC voltage with a peak value of about 300V is obtained. Fig. 1 shows that the exhaust fan of the induction cooker according to an embodiment of the present invention is powered by a current transformer T 2 , the primary coil of the current transformer is connected in series with the inductive heating coil 1 of the induction cooker, and the secondary coil is passed through the rectifier diode D 1 、D 2 、D 3 、D 4 After rectification, the capacitor C 16 After filtering, it is directly supplied to exhaust fan F as power supply. According to the principle of current transformer, the ratio of the primary coil current to the secondary coil current is equal to the ratio of the secondary coil turns to the primary coil turns. When the turns ratio is constant, the secondary coi...

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Abstract

A technique for supplying electric energy to the exhaust fan of electromagnetic stove is based on the mutual current inductor principle. The primary winding of mutual current inductor is serially connected to the inductive heating coil of electromagnetic oven. The output of its secondary winding is rectified and filtered to obtain a working current of fan, which is proportional with the working current of said heating coil. As a result, the fan can provide cooling wind according to the working state of heating coil.

Description

technical field [0001] The invention relates to a power supply device for a fan, in particular to a power supply device for an exhaust fan of an electromagnetic oven. Background technique [0002] At present, the induction cooker has been widely used. When the induction cooker is working, due to the sympathetic coupling of the electromagnetic coil, it will cause self-heating. If the heat is not discharged in time, the reliability of its use will be reduced. Therefore, the induction cooker needs to be equipped with a heat dissipation device, such as an exhaust fan. . In the prior art, the operation of the exhaust fan is basically a constant full power output, that is to say, as long as the induction cooker is working, the exhaust fan is always running at high speed. As we all know, the power output of the induction cooker will follow the user's will When it becomes larger or smaller, when it works at low power, the heat generation is small. At this time, the exhaust heat dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C7/02
Inventor 陈梓平
Owner 陈梓平
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