CN201964514U - Portable electric heater - Google Patents

Abstract

The utility model relates to a portable electric heater, the power source is a hand-operated generator, and the heating element is an electric heating film; the two are connected through plugs and wires to provide electric energy to the electric heating film. Break through the dependence on fixed power supply and batteries, carry the electric heater with you, place the electric heating film on the feet or hands, warm the limbs, prevent frostbite, and apply heat to the abdomen without a hot water bottle.

Description

portable heater

technical field

The utility model relates to an electric heater, in particular to a portable electric heater.

Background technique

Current electric heating gloves and electric heating shoes are all realized by external fixed power supply or external battery. However, it is difficult to ensure that there is always a fixed power supply or battery around people in the environment of activities. Once such power supply does not exist, the functions of thermal insulation gloves and thermal insulation shoes relying on electric heating will be out of the question.

Contents of the invention

The purpose of the utility model is to provide a practical, reliable, energy-saving, environment-friendly, safe and economical portable electric heater.

In order to achieve the above purpose, the utility model provides a portable electric heater which is composed of a heating element and a power supply. The power supply is a hand-operated generator, and the heating element is an electric heating film; Provide electrical energy.

The hand generator is composed of a shell, a hand crank, a variable speed gear set, and a miniature generator; there is a hand crank groove on the shell, and the hand crank is folded into the groove, and the outside of the hand crank is flat with the outer plane of the shell. Align, there is a rotor hole, the micro-generator is installed in the casing, the outer rotor exposes heat dissipation through the rotor hole and is flush with the outer plane of the casing; the diameter of the outer rotor is 25-35mm, the thickness is 7-10mm, the magnetic field strength is 1800-5000 Gauss wire diameter 0.22-0.3mm The gear speed ratio is 1:20-60; the optimum diameter of the outer rotor is 29 mm, the thickness is 7.7 mm, the magnetic field strength is 2500 Gauss, the wire diameter is 0.26 mm, the gear speed ratio is 1:39, and the micro generator is a two-phase alternator.

The electric heating film is flexible and can be bent three-dimensionally. The power is 3-30W and the resistance is 4-50Ω; the best power is 5-20W and the resistance is 5-40Ω. The heating material of the electric heating film is carbon fiber film, the length is 6-9cm, the width is 4-6cm, the film thickness is 0.02-1mm; the best length is 7-8cm, the width is 5-5.5cm, and the film thickness is 0.1-0.2mm. The carbon fiber film is encapsulated with a plastic composite film material. The plastic composite film material is aluminum-containing.

The portable electric heater of the utility model can show great advantages when used in daily life.

Practical and reliable. Portable electric heaters rely on hand-operated power to provide energy for the electric heating film, breaking through the dependence on fixed power sources and batteries. The structure is small and compact, and the electric heater can be carried with you. For frostbite, heat the abdomen without a hot water bag to meet people's needs at any time when the temperature is low. The electric heating film starts to heat up by hand 10 times, and the temperature can reach 45°C within 2-3 seconds after power on.

Energy saving, environmental protection and safety. The utility model is driven by a user to generate electric energy by a generator, without using fixed power sources, batteries and other external energy sources, producing no waste, and having no pollution to the environment.

Convenient and economical. The hand-cranked generator is portable and reusable, and the price is low and the service life is long. It is a good portable power generation device, which can be used as a power source in emergency situations to deal with emergencies and improve people's quality of life.

At the same time, the circuit of the technical solution of the utility model is simple, reliable and easy to implement.

Description of drawings

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

Fig. 2 is a structural diagram of the housing of the hand-operated generator of the present invention.

Detailed ways

Referring to the portable electric heater in Figure 1, choose a flexible and three-dimensionally bendable metal electric heating film or a carbon fiber film to make a heating element with a power of 3-30W and a resistance of 4-50Ω; the best power is 5-20W and a resistance of 5-40. 9cm wide 4-6cm film thickness 0.02-1mm; optimal length 7-8cm wide 5-5.5cm film thickness 0.1-0.2mm, packaged with plastic composite film material or aluminum foil, aluminized plastic composite film material to make electric heating film 1. Through wires, plugs, sockets, plug-in connection with the hand generator 2 and obtain electric energy.

Fig. 2 is a structural diagram of the housing of the hand-operated generator of the present invention. There is a handle groove 16 on the casing, and the handle is put into the groove after being folded. The outside of the handle is flush with the outer plane of the casing, and there is a rotor hole 17. The micro generator is installed in the casing, and the outer rotor passes through the rotor hole 17 The exposed heat dissipation is flush with the outer plane of the casing, and the rotor hole 17 and the handle groove 16 can be arranged on the same surface or on different surfaces.

Hand generator 2 is composed of shell, hand crank, variable speed gear set, and micro generator; the diameter of the outer rotor of the micro generator is 25-35mm, the thickness is 7-10mm, the magnetic field strength is 1800-5000 Gauss, the wire diameter is 0.22-0.3mm, and the gear ratio is 1 : 20-60; the best diameter of the outer rotor is 29mm, the thickness is 7.7mm, the magnetic field strength is 2500 gauss, the wire diameter is 0.26mm, the gear ratio is 1:39,

The portable electric heater composed of a hand-operated generator and an electrothermal film plug-in connection adopts a two-phase alternator, a three-phase alternator, and a brushless DC motor.

Place the electric heating film 1 on the toes of the soles of the feet or the fingertips of the back of the hand. After connecting with the hand generator 2, the electric heating film 1 generates heat to warm the limbs and prevent frostbite; temperature.

Claims (5)

1. a carry-on electric heater is made up of heater, power supply, is characterized in that power supply is hand generator (2), and heater is Electric radiant Heating Film (1); Both connect by plug, lead plug and provide electric energy to Electric radiant Heating Film (1).

2. carry-on electric heater according to claim 1, described hand generator (2) is made up of shell, wind, change-speed gearing group, microgenerator; One wind groove (16) is arranged on the shell, it is concordant with the shell outerplanar to put into groove, wind outside after wind is amounted to, have a rotor hole (17), microgenerator to be installed in the shell, it is concordant with the shell outerplanar that outer rotor exposes heat radiation by rotor hole (17); The thick 7-10mm magnetic field intensity of outer rotor diameter 25-35mm 1800-5000 gaussian line footpath 0.22-0.3mm gear graduation is than 1: 20-60, microgenerator are the two-phase alternating current generator.

3. carry-on electric heater according to claim 1, wherein said Electric radiant Heating Film (1) but be the flexibility three-dimensional bending, power is 3-30W resistance 4-50 Ω.

4. carry-on electric heater according to claim 1, wherein said Electric radiant Heating Film (1) exothermic material is a carbon fiber film, the wide 4-6cm thickness of long 6-9cm 0.02-1mm.

5. carry-on electric heater according to claim 4, wherein said carbon fiber film composite plastic film material package.

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