CN2373214Y

CN2373214Y - Internally heated safety high-efficient electric iron

Info

Publication number: CN2373214Y
Application number: CN 98212264
Authority: CN
Inventors: 谢嘉; 谢小甦
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-13
Filing date: 1998-03-13
Publication date: 2000-04-12
Anticipated expiration: 2008-03-13

Abstract

The utility model relates to an internal heating safety high efficiency electric soldering iron, which is characterized in that a middle porcelain pipe 2-3 is sheathed between an inner porcelain core 2-1 and an outer porcelain pipe 2-5 of a double-layer internal heating electric heating core. One end of the inner porcelain core 2-1 is wound with an inner layer electric heating wire 2-2, and one end of the middle porcelain pipe 2-3 corresponding to the inner layer electric heating wire is wound with an outer layer electric heating wire 2-4. The electric soldering iron shortens the length of the effective heating zone of the electric heating core, ensures that the heat gathers at the front end of a soldering iron head, improves the thermal efficiency and reduces the environmental pollution. The heating wire with double-layer structure can choose a thicker and longer resistance wire, so the service life of the electric heating core can be prolonged. The utility model adopts a bayonet type front cover structure which is a fire-new assembly structure.

Description

The safe and efficient electric iron of internal heat type

The utility model belongs to electroheat technology to be used, and is specifically related to the safe and efficient electric iron of a kind of internal heat type.

Inner heating type electric iron at present commonly used on the market as shown in Figure 1, comprises solder horn 1, electrothermal wire heating's core 2 and go between 3, and electrothermal wire heating's core wherein, as shown in Figure 2, coiling nichrome resistance wire 2-2 on the porcelain inner core 2-1 in porcelain outer tube 2-5.Wherein at the anterior 2-7 of inner core, resistance wire one encloses with interval closely around together, constitutes effective hot zone.When the current flowing resistance silk, in the efficient heat generation district, electric energy is transformed into heat energy, passes to cover solder horn outside, and along with constantly gathering of heat, temperature raises gradually; Meanwhile, solder horn also begin to around distribute heat, when the heat that produces reached balance with the heat that distributes, the temperature of solder horn had also just settled out substantially.Because China's mains supply voltage is higher, be 220V, the used resistance wire of the heating core of making is longer, thereby the length in the efficient heat generation district that winds up is also long.For example: the heating length 2-7 of 20W heating core commonly used is between 40--55CM at present, and the heating length of 30W heating core is between 60--85CM.And simultaneously owing to the restriction of length, each factory all can only use very thin nichrome wire to come the coiling heating core, because the alloy silk is too thin, is easy to blow, and therefore, the life-span of this heat generating core is very short, is not durable very much; In addition, above-mentioned hot zone is oversize, and the heat that its rear portion produced is difficult to pass to the front end of solder horn.Or rather, the heat that the rear portion, hot zone is produced really is not sent to the front end of solder horn, the overwhelming majority to around dissipated.Even take heat insulation, insulation measure in the outside of solder horn, effect is not remarkable yet, and the thermal efficiency is very low, not only causes the waste of big energy, but also has polluted environment; If merely by with resistance wire around the close effective length that shortens the hot zone because the crest voltage of the AC network of present 220V up to 300V, is easy to breakdown between overstocked resistance wire and produces electric arc, blow resistance wire and damage heat generating core.Thereby inner heating type electric iron still fails to promote the use of so far.

The purpose of this utility model is to provide a kind of thermal efficiency height, the safe and efficient electric iron of life-span internal heat type long, that security is good.

The safe and efficient electric iron of internal heat type of the present utility model, comprise solder horn, electrothermal wire heating's core, pair of lead wires, it is the flatiron shell that the flatiron tube is set outside electrothermal wire heating's core, it is characterized in that described heat generating core is double-deck internal heat type heat generating core, porcelain core and external ceramic tube in including, interior porcelain core and outside be arranged with between the porcelain core in the middle of porcelain tube, be wound with the internal layer heating wire at interior porcelain core one end, be wound with the outer heating wire of same specification at the end corresponding to this internal layer heating wire district of middle porcelain tube.Like this, the length in its efficient heat generation district is less than half of common heating core, even can be shorter, usually in 20CM.

Can also be connected in series a half-wave commutation diode in the heating core of the present utility model loop.

For assemble, easy to maintenance, the thrust that has two symmetries at flatiron tube middle part is recessed, is provided with insulation porcelain tube and heat insulation ceramics around solder horn, its front end compresses with stainless steel spring, makes total simple and firm.

Because this double-deck heating core is very long-lived, and solder horn is made of fine copper, is easy to because of the oxidation loss.For the ease of changing solder horn, can offer the symmetric windows of two similar bayonet-type bulb formulas at the front end of flatiron tube, on its protecgulum then correspondence be provided with two little protruding.When changing solder horn,, just can extract solder horn out and change as long as turn protecgulum.

The efficient electric iron of internal heat type of the present utility model has adopted the bayonet type assembly structure, and is simple, convenient and practical.

The efficient electric iron of internal heat type of the present utility model, front end by porcelain core in heating wire is wound on respectively and middle porcelain tube has shortened the length in heating core efficient heat generation district greatly, has guaranteed that heat can focus on the front end of solder horn smoothly, reduce the loss of heat, effectively improved the thermal efficiency; Insulation and heat-barrier material are arranged in adding, so the temperature of flatiron shell is very low, and imperceptible basically heat on handle is run into staff and object and the chance of being scalded significantly reduces, and is very safe.Therefore, not only can reduce the rated power of electric iron significantly, but also can improve the pollution of working environment effectively, especially in the summer of sweltering heat, in the e-factory of a large amount of use electric iron, effect is particularly remarkable.Owing to be connected in series a halfwave rectifier diode in the loop of heating core, make the electrical power in loop reduce half, and owing to adopted the heating core of double-deck winding structure, but increased the length of the resistance wire of coiling in fact greatly, thereby can select thick and long resistance wire for use, thereby this just more advances a service life that prolongs heating core.

Below be in conjunction with the accompanying drawings the safe and efficient electric iron of internal heat type of the present utility model to be described further:

Fig. 1 is the structural representation of existing inner heating type electric iron;

Fig. 2 is the structural representation of existing inner heating type electric iron heat generating core;

Fig. 3 is the structural representation of the safe and efficient electric iron of the utility model internal heat type;

Fig. 4 is the internal heated type electric heated cored structure schematic diagram of bilayer of the present utility model;

Fig. 5 is the structural representation of flatiron shell of the present utility model;

As Fig. 3, Fig. 4 and shown in Figure 5, the safe and efficient electric iron of the utility model internal heat type, comprise the flatiron tube 5 outside solder horn 1, electrothermal wire heating's core 2, pair of lead wires 3 and the electrothermal wire heating's core 2, porcelain core 2-1 and external ceramic tube 2-5 in this double-deck internal heat type heat generating core includes, interior porcelain core 2-1 and outside be arranged with between the porcelain core 2-5 in the middle of porcelain tube 2-3, be wound with internal layer heating wire 2-2 at interior porcelain core 2-1 one end, be wound with the outer heating wire 2-4 of same specification at the end of middle porcelain tube 2-3 corresponding to this internal layer heating wire district; Have the thrust of two symmetries at flatiron tube 5 middle parts recessed 7, is provided with insulation porcelain tube 8 and heat insulation ceramics 9 around solder horn, and compresses with stainless steel spring 10; Offer the symmetric windows 5-1 of two similar bayonet-type bulb formulas at the front end of flatiron tube 5, on its protecgulum 6 then correspondence be provided with two little by protruding 11; And in the heating core loop serial connection one half-wave commutation diode 4.

Claims

1. safe and efficient electric iron of internal heat type, comprise solder horn (1), the flatiron tube (5) that electrothermal wire heating's core (2) pair of lead wires (3) and electrothermal wire heating's core (2) are outer, it is characterized in that described heat generating core is double-deck internal heat type heat generating core, include interior porcelain core (2-1) and external ceramic tube (2-5), interior porcelain core (2-1) and outside be arranged with between the porcelain core (2-5) in the middle of porcelain tube (2-3), be wound with internal layer heating wire (2-2) at interior porcelain core (2-1) end, be wound with the outer heating wire (2-4) of same specification at the end corresponding to this internal layer heating wire district of middle porcelain tube (2-3).

2. the safe and efficient electric iron of internal heat type as claimed in claim 1 is characterized in that having at flatiron tube (5) middle part the thrust recessed (7) of two symmetries, is provided with insulation porcelain tube (8) and heat insulation ceramics (9) around solder horn, and compresses with stainless steel spring (10).

3. the safe and efficient electric iron of internal heat type as claimed in claim 1 or 2 is characterized in that offering at the front end of flatiron tube (5) symmetric windows (5-1) of two similar bayonet-type bulb formulas, and then correspondence is provided with two little protruding (11) on its protecgulum (6).

4. the safe and efficient electric iron of internal heat type as claimed in claim 1 or 2 is characterized in that serial connection one half-wave commutation diode (4) in the heating core loop.

5. the safe and efficient electric iron of internal heat type as claimed in claim 3 is characterized in that serial connection one half-wave commutation diode (4) in the heating core loop.