CN2133168Y

CN2133168Y - Automatic constant temp. electric heating shoes

Info

Publication number: CN2133168Y
Application number: CN 91230119
Authority: CN
Inventors: 刘葛元
Original assignee: CHENGDU CITY ELECTRIC HEATER FACTORY
Current assignee: CHENGDU CITY ELECTRIC HEATER FACTORY
Priority date: 1991-10-24
Filing date: 1991-10-24
Publication date: 1993-05-19
Anticipated expiration: 2001-10-24

Abstract

The utility model designs automatic constant temperature electric heating shoes, which adopt the semi-conductor material of the positive temperature coefficient (the abbreviation is PTC) as a heating core; the heating core and a heat transferring plate keep good thermo contact, and the internal heating device of the automatic constant temperature electric heating shoes is formed. An air chamber is arranged between the heat transferring plate and the heat transferring upper plate; the heating device can heat the gas in the air chamber; the gas which is heated in the air chamber is transferred to the heat transferring upper plate through the heat radiation, and the inner part of the automatic constant temperature electric heating shoes can keep constant temperature. Since the characteristics of the PTC material determine that the heating core does not need a temperature control device, the heating temperature is constant between 40 DEG and 45 DEG, and the temperature in the automatic constant temperature electric heating shoes is uniform and moderate. The raw materials of the automatic constant temperature electric heating shoes are easy to be bought; the assembly is convenient without the one-to-one correspondence; the timing performance and the interchange ability are high; the cost is low, and the after-sale service is convenient.

Description

Automatic constant temp. electric heating shoes

Present technique belongs to individual and home-use category, a kind of automatic constant-temperature electric heating shoes.

Existing electric heating shoes is to be thermal source with heating wire.Can be not too high in order to control heat source temperature, temperature control equipment is housed in the footwear, no coupler socket has dragged long power line on the footwear.This electric heating shoes complex structure, the heating wire life-span is short, uses inconvenience, and security performance is bad, the manufacturing cost height.

The purpose of this utility model is to design a kind of to be heating core by semiconductor thermistor, to need not temperature control equipment, and is simple in structure, long service life, and security performance is good, and cost is low, automatic constant-temperature electric heating shoes easy to use.

The major technique content is: utilizing semiconductor thermistor (the being called for short PTC) material that positive temperature coefficient is arranged is heating core, and heating core and heat transfer plate keep good thermo-contact, form heater members.Utilize air chamber to produce heat radiation and conduct heat, and overcurrent protection is housed, adopt the coupler socket mode that is connected with power interface connector.Primary structure such as Fig. 1.This electric heating shoes partly is made of vamp (1), main body (2), heat transfer plate (3), PTC heat generating core (4), heat transfer upper plate (5), air chamber (6), overcurrent protection (7) and coupler socket (8) etc.Power supply communicates with coupler socket (8) through power interface connector (9); directly heat PTC heat generating core (4) through overcurrent protection (7) back; because of heat generating core (4) is semiconductor thermistor (PTC) material of positive temperature coefficient; energising back half an hour to 1 hour reach normal operating conditions, temperature constant is between 40 ℃-45 ℃.Heating core (4) tightly links with heat transfer plate (3), keeps good thermo-contact, so heat transfer plate (3) also reaches same temperature.There is air chamber (6) in heat transfer plate (3) central authorities, and after heating core and heat transfer plate heated air chamber, heat was conducted heat to heating upper plate (5) by forms of radiation, makes shoe temperature evenly constant.The vamp shape can be the slippers style, can also be the style of general city shoe.Protector outage stopping heating when electric current is excessive.Adopt coupler socket (8) and power interface connector connected mode, need not to drag again long power line on the footwear.

Major advantage of the present utility model is the requirement that the every specification requirement of this electric heating shoes electric property all is better than GB GB47061 " the electric safety general of family expenses or similar applications requires " standard.Utilize ptc material to simplify temperature control equipment, reduced cost, can adapt to the scope range of the fluctuation of voltage of broad, overcurrent protection is housed, the flames of anger in the footwear, the efficient height, security performance is good.The PTC heat generating core life-span is long, is not afraid of vibration, bump, can adapt to the vibration condition of footwear work fully.Power interface connector and coupler socket are separated use the same with common footwear of back.Because there are air chamber in heat transfer plate central authorities, changed the direct conduction of thermal source and heat transfer upper plate and be heat radiation, therefore changed the equal property of temperature of heat transfer upper panel surface temperature effectively.This electric heating shoes material requested, element are commercially available universal product, need not specialize in, and be with low cost, easy to assembly, do not need corresponding one by one, adjustment, and the interchangeability height is fit to produce in enormous quantities, and after-sale service is convenient.

Accompanying drawing and drawing explanation:

Fig. 1 automatic constant-temperature electric heating shoes sketch

Fig. 2 heat generating core and air chamber

Sequence number among the figure: (1) vamp, (2) main body, (3) heat transfer plate, (4) heat generating core, (5) heat transfer upper plate, (6) air chamber, (7) overcurrent protection, (8) coupler socket, (9) power interface connector

Embodiment: make heat transfer plate (3) under the central fovea with one of 0.8mm sheet iron, above the protrusion limit of iron plate is fastened on PTC heat generating core (4) with securing member.Getting a flat 0.8mm sheet iron again makes heat transfer upper plate (5) and heat transfer plate (3) and is connected as a single entity.Form an air chamber (6) between heat transfer plate (3) and the heat transfer upper plate (5).Heating core (4) is connected back connection power supply one by one with overcurrent protection (7), coupler socket (8), power interface connector (9) can heat heating core.Because the decision of ptc material characteristic, heating core reaches normal operating conditions after half an hour.Temperature constant is at 43 ℃.Heating core and heat transfer plate keep good thermo-contact, so heat transfer plate (3) also reaches 43 ℃.Heating core and heat transfer plate be the heat air indoor gas together, makes it to heat up near 43 ℃.By heat radiation heat is passed to heating upper plate (5) after gas is heated, make shoe temperature evenly constant about 42 ℃.Vamp can make the slippers style with cotton, hair, linen or man-made fibre material, and sole is sheared with the foamed plastics that is shaped and is shaped.

Claims

1, a kind of electric heating shoes is characterized in that with semiconductor thermistor be heat generating core (4), and heat generating core (4) keeps good thermo-contact with heat transfer plate (3), forms the heater members of electric heating shoes.

2, it is characterized in that between heat transfer plate (3) and heat transfer upper plate (5) air chamber (6) being arranged by the said electric heating shoes of claim 1.

3, it is characterized in that having coupler socket (8) and power interface connector (9) to link by claim 1,2 said electric heating shoes, connect power supply.