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Electric heater

A technology of electric heater and power supply, which is applied in the direction of ohmic resistance heating, electric heating device, heating element material, etc. It can solve the problems of unusable, processing and cooking food, etc., and achieve the effect of increasing the occasion

Inactive Publication Date: 2009-12-23
应博 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: a sandwich oven, to bake a sandwich with a size of 10cm×10cm, requires a power of 600W and takes 5 minutes
When using 120V voltage, its working current is only 5A, no matter the power line or the internal wire of the facility does not need to be very thick, the general cross-sectional area is 1.3mm 2 , A wire of about 6.5A is enough; if a 12V voltage is used, the working current is 50A, and the cross-sectional area is 10mm 2 The above power wires, the circuit load of any household, car and other facilities, cannot use such a large current electrical appliance to process and cook food

Method used

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Experimental program
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Effect test

Embodiment 1

[0031] Figure 1~3 The electric heater shown is the first embodiment of the present invention, which includes a substrate 1, a heating element 2 made of a rare earth thick film material (also can be understood as at least 2 or more heating elements, and each heating element is Through the control circuit, the control circuit connects the heating elements in series, which is equivalent to a long heating element), wherein the substrate 1 is a stainless steel substrate or copper plate, and the heating element 2 is fixed on the substrate 1 by sintering after printing; the heating element 2 are all connected with the car storage battery or the engine power supply through the control circuit.

[0032] The two ends of the heating element 2 are connected to the control circuit through the connecting piece. The structural composition of the connecting piece includes: a hole with the mouth facing down at the bottom of the barrel is directly fixed (or fixed by a pressing sheet) on the su...

Embodiment 2

[0036] Figure 4~5 The electric heater shown is the second embodiment of the present invention. It differs from the first embodiment in that: this embodiment is provided with four heating elements 2, and the two ends of each heating element are provided with power connectors, and the The control circuit connects the heating elements in series or in parallel to the power supply.

[0037] When the control circuit is used to cycle through each heating element and the power supply, a heating element starts to work with a fixed power according to the preset working rhythm, and other heating elements do not work; when a certain heating element is powered on, it will work for a certain After a certain period of time, the control circuit automatically switches to another heating element to turn on the power supply and continue to work, and the cycle is repeated in turn. The power of each heating element should not exceed the load power of the wire each time. Food is processed until c...

Embodiment 3

[0039] The heating element and the base plate are arranged on the inner surface of the die-cast copper alloy or aluminum alloy part 13, and then covered with a heat insulating cover 12.

[0040] The principle and structural design of the present invention are reasonable, and through reciprocating and cyclic heating, the substrate continuously accumulates heat and transfers it to the food to be processed, so that the food is gradually heated and cooked.

[0041]The application of the present invention can improve people's daily work and living conditions, especially for long-distance driving, winter cold journeys, pommel horse fatigue, experience cooking coffee, brewing tea, toasted sandwiches, bread slices, fried eggs, etc. While satisfying and filling the belly, I also experienced the fun of doing it myself.

[0042] The low-voltage DC series electrical appliances integrating driving, life and fun have huge development potential and broad market and economic prospects.

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PUM

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Abstract

The invention relates to an electric heater which is characterized by comprising a basal plate and at least more than two heating bodies fixed on the basal plate, wherein each heating body is connected with a power supply through a control circuit. The heater can be applied to a power supply of DC12-24V (of course, can also be applied to a power supply with DC high voltage and AC high and low voltage), can improve the heating temperature of the electric heater in different facilities and occasions, even on vehicles, and more importantly, the heater can boil food under the condition of DC12-24V. The solution scheme widens the range of usable power supplies of relevant electric appliances to the maximum extent, can directly utilize automobile power supplies, battery jar power supplies, solar power supplies, and the like, and increases the application range of the electric heater, thereby meeting the requirements of people in daily life to the maximum extent.

Description

technical field [0001] The invention relates to an electric heater. Background technique [0002] Most of the original commonly used electric heaters use alternating current to generate heat through electric heating components, such as: electric kettles, electric hot water cups, coffee centers, coffee pots, ovens, toasters, sandwich ovens, pizza ovens, rice cookers , Electric pressure cooker, etc. [0003] The original electric heater usually uses heating wire, metal electric heating tube, quartz heating tube, etc. as the electric heating element. However, due to the low heat load per surface unit of this type of electric heating element, and the low heat transfer efficiency and large heat loss of insulating magnesia, air, some metal materials, and quartz tubes, household appliances can only use AC, DC100V ~ 240V AC and DC power supply, the power can reach several hundred to several thousand watts to meet the heating needs of food and so on. [0004] If it is connected wi...

Claims

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Application Information

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IPC IPC(8): H05B3/22H05B3/10
Inventor 应博李美嘉章科
Owner 应博
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