1. Case issue
Is the wire coil of the electromagnetic cooker defined by the standard definition?
Figure 1 The principle diagram of the electromagnetic stove
2. Case analysis
I personally think that the electromagnetic coil is not a "electric heating element" in the standard sense. The reason is as follows:
1. GB 4706.1-2005 "Safety of Home and Similar Electric Part 1: General Requirements" standards are not defined in the standard of "electric heating elements\\ The definition of electric heating components see Electrician term IEV 841-23-14 (see the content of the standard terms for details below). Keywords: Electric energy is converted into thermal energy, heating resistance.
2. The electromagnetic stove coil plate is mainly transformed into magnetic flux energy (a small amount of current is directly converted into thermal energy in a small current), and the magnetic flux generates heat at the bottom of the pot. In a certain sense, the coil disc does not directly convert the power of electrical energy to thermal energy, but indirectly generates thermal energy through the pot. If it is replaced with a glassware, the coil disk cannot be converted into thermal energy.
3. According to the GB 4706.1-2005 standard 3.5.7, the electromagnetic stove is evaluated according to the electric appliance.
In summary, the electromagnetic coil is not a "electric heating element" in the standard sense.
Third, standard terms
Introduces 841-23-14
Heating element
Part, removable or not, used for conversion of electric energy into heat, consisting of a heating resistor and accessories
Reference translation
Heating element
A disassembly or non -demolition part is used to convert electrical energy to thermal energy, consisting of heating resistance and attachment.
GB 4706.1-2005 "Safety of Home and Similar User Electric Part 1: General Requirement (IEC 60335-1: 2004, IDT) standard
Motor -PERATED Appliance
Electric motors without electrical components.
Note: The magnetic drive appliance is considered to be an electric appliance.
It can be seen
The electric heating element that can be seen partly or all from the outer or all, when the appliance works under normal working conditions, when the rated input power works until the stable state is established, the temperature of the electric component is not less than 650 ° C.
PTC electric heating element PTC Heating Element
It is mainly composed of the thermistor of the positive temperature coefficient for heating. When the temperature increases within a specific range, its resistance value increases quickly.
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