CN2672917Y

CN2672917Y - Telescopic conductive wire

Info

Publication number: CN2672917Y
Application number: CN 200320104611
Authority: CN
Inventors: 雷海平
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-23
Filing date: 2003-12-23
Publication date: 2005-01-19
Anticipated expiration: 2013-12-23

Abstract

Usually, in the electric appliance electronic-liked experiment or the electronic circuit development process, a mass of long and short conducting wires are needed. The conducting wire is zigzag after connected. The connected entity diagram has large difference with the circuit diagram, which affects the speculation and decreases the efficiency. The power wire and data wire of the used portable socket-outlet and the electrical equipment at present have constant length, are not conveniently collected, and are random placed. The utility model provides a telescopic conducting wire. Under the spring action of the conducting wire, the utility model can automatically retracted. When in use, the length of the conducting wire is elongated and is a plurality of times or scores of times longer than the original length as required. The conducting wire is provided with flexibility, takes the air line and turns right-angled bend when in connecting. The connected entity diagram is uniform with the circuit diagram. The utility model also has the functions of circuit analysis and circuit checking. As the schools of all levels have many electromagnetism experiments, the significances of the electromagnetism scientific research and electronic circuit development work exist in each enterprises and institutions, and the electrical equipment is largely used, the demand of the conducting wire is urgent and the demand quantity of the conducting wire is large.

Description

Telescopic conductive wire

Affiliated technical field:

In the electromagnetism scientific research of the Experiments of Electromagnetism of the schools of various levels and categories and each enterprises and institutions, electronic circuit development, used lead is either long or short a lot of, bothers in a jumble, and pictorial diagram that is linked to be and circuit diagram difference are very big, be unfavorable for understanding, reduced efficient; Power line, data wire on the electric equipments such as used now mobile jack, Telephone set, messy and be not easy to the collection.The purpose of this utility model is to overcome above-mentioned difficulties, and a kind of Telescopic conductive wire that can be elongated to several times to tens times of former length as required is provided.

Background technology:

A kind of electromagnetism instrument, the instruments used for education that using as China middle schools at different levels are numbered the circuit brassboard of J2368 or J2369, and its lead is made up of the different lead of multiple length.Described lead shortcoming has three:

Shortcoming one: lead is either long or short a lot of, bothers in a jumble.As J2368 type junior middle school's demo, supporting plug or the jaw lead that has 11 kinds of length to differ, the lead of each specification respectively has 2 to 10.J2369 type senior middle school grouping version has 7 kinds of plugs different in size or jaw lead, and the lead of each specification respectively has 5 to 20.

Shortcoming two: the pictorial diagram and the circuit diagram that are connected by described lead differ greatly, and lead is having many bends or curves, influences student thought, and many students cost a time, spend the some time, just can understand figure.Though have little combination hub and little inserting column in the spare and accessory parts of described circuit brassboard, in order to the direction of routing of spreading lead and change lead, result of use is also bad, to such an extent as to instructors is not generally used.

Shortcoming three: because the regular length of lead, caused this circuit brassboard can only be used as experiment, do not have analytic function: in teaching process, often need do circuit analysis, as carry out the analysis of series parallel circuits, assist the answer of electromagnetism calculation question, experimental problem, particularly movable electrical appliances electronic component material object waits the conversion of suburb circuit on base plate.Transform method in the suburb circuit is: directly move certain appliance electronic component on base plate, change the length and the trend of corresponding lead simultaneously, once move an appliance electronic component, repeatedly move, the circuit of complexity can be transformed into the simple and direct circuit, and process is reversible, so the thought process of image, also need the to take the air line support of the Telescopic conductive wire that turns quarter bend, effect is remarkable just now.The teacher is except utilizing the computer courseware at present, and just have to taking maps adds the mode that language is explained, and allows the student understand the conversion process of equivalent electric circuit arduously.

A kind of classification number is that G09B23/18, notification number are 86203796 " general-purpose electric circuit teaching machine ", adopts elastic wire, extending 1.2 to 1.8 times, help the solution of above-mentioned shortcoming one, two, but still needing many leads, also trouble is simultaneously to some difficulty of solution of above-mentioned shortcoming three.

The patent No. is 93240951.2 " junior middle school's Experiments of Electricity analog circuit equipment ", adopt " straight line inserted block ", " right angle inserted block ", " threeway inserted block ", " four-way inserted block " to replace lead, lead can be taken the air line turn quarter bend, pictorial diagram that is connected into and circuit diagram basically identical, but the mould that needs when making is many, has increased cost, and in use, need a plurality of such inserted blocks, do grafting action repeatedly, need the more line time.Similarly also have " Experiments of Electricity circuit simulator " (patent No. is 98237236.1, Granted publication number be CN2331048Y), employing " two plug " and " bull plug " is electrically connected to each appliance electronic component.

Application number is 90208175.6 " a kind of Experiment of Electronic Circuits device ", connect each appliance electronic component with " conduction square formation " as lead, shortcoming is that the pictorial diagram and the circuit diagram differences that are linked to be are big, be unfavorable for understanding, and the process of pegging graft has certain degree of difficulty, where should be inserted in because will think deeply certain element earlier.

Electric mosquito repellent on the market, its power line is more convenient when elongating; But when take-up, need to cooperate rotation upper and lower casing, trouble with two hands.Be not to be connected plane scroll spring with difference of the present utility model.

Hairspring in the existing electromagnetic meter, its hairspring is fixed on gauge internal, and its purposes is pointer is produced torque, and does not lie in elongation, and this hairspring is solidificated in an appliance electronic component inside, can not do movable electrical connection to appliance electronic component.

Microphone cord on the existing Telephone set is spring-like in the shape of a spiral, and certain retractility is arranged, and cuts greatly but this microphone cord still grows base one when contraction state, seems messy, and promptly this microphone cord magnification is big inadequately.

The patent No. is " the appliances power source line length can be lacked the device of random folding and unfolding " of 00254967.0, its " power line is wrapped on the face of cylinder of fixing coiling cylinder (2) by crank (5) ", be connected together indirectly by " fixing coiling cylinder 2 " with disc spring, can obtain bigger magnification, but power line need change during by crank three times curved, friction is big, used pulling force is also corresponding bigger, motionless situation may appear drawing, and need to pull lead, " switch 8 " that a hand control stops lead to move, apparent slightly trouble with one, not too be applicable to the compact electric apparatus electronic component that frequency of utilization is very high, as microphone cord on the Telephone set etc.The utility model then is that lead and spring directly are fixed together, structure is more simple, and friction is little, and apparent size is littler, more be applicable on the appliance electronic component that is solidificated in miniaturization, as the lead in the Experiments of Electromagnetism, power line, data wire etc. on the small household appliances.

The content of utility model:

Therefore, be a long felt need for a kind of Telescopic conductive wire, can be elongated to several times to tens times of former length, and this lead has certain flexibility, during wiring, lead can take the air line and turn quarter bend under the stopping of certain cylindrical objects, so that the pictorial diagram that is linked to be is consistent with circuit diagram, be convenient to analyze, understand.For portable appliance electronic component, mix telescopic power line, data wire, be convenient to collection.The utility model occurs for addressing that need just.

The technical scheme that its technical problem that solves the utility model adopts has two:

Scheme 1: be fixed with plane scroll spring on the lead, plane scroll spring applies elastic force along the lead shrinkage direction to lead, and lead can extend under external force, owing to be connected with the plane spiral spring, so can obtain great magnification, can be elongated to tens times of former length.This scheme can be subdivided into two kinds of concrete modes again:

Scheme 1.1: an end of this lead and the outer end of plane scroll spring are fixed together, this lead and plane scroll spring all are looped around a kind of the inside to be had in the flat cavity substance of flat cavity, the internal structure of this flat cavity substance is similar to the tape measure that includes spring, it is characterized in that lead has replaced graduated mark in the tape measure; One end of power line or data wire also can be fixed on the outer end of plane scroll spring, constitutes this moment on the sheet metal, alloy sheet of plane scroll spring to be fixed with several buss insulated from each other, thereby constitutes the multi cord with retractility.

Scheme 1.2: this lead is spiral shape, and this one or several spiral shape lead and plane scroll spring overlap, thereby constitutes single cord or the multi cord with retractility.

Scheme 2: lead itself is the helical spring that gunmetal is made.

The beneficial effects of the utility model are:

When as the lead in the magnetics experiment, this is connected with the lead of spring as a spring or an end, and this lead is generally single cord, has flexibility, can be bent into the right angle, and is simple in structure, and the cost of every open traverse is somewhat in three maos.Magnification is very big, diameter is the flat cavity substance that is placed with Telescopic conductive wire of 5cm, if the blister copper silk that lead twists into for the multiply thin copper wire, lead is extending to more than the 90cm, if lead is strip metal sheet or alloy sheet, then onesize flat cavity substance, its inside conductor is extending to more than two meters, and magnification reaches more than 40 times.

This scheme 1 described Telescopic conductive wire, can change system into telescopic power line, data wire: change single cord into several strands of leads more conveniently, and several buss insulated from each other are set on spring, or several sizes, spring that shape is identical linked together insulated from each otherly, constitute power line, data wire from face.Be placed with the flat cavity substance of telescopic power line, data wire, can be fixed on the inboard or the outside of appliance electronic component housing, thereby taken leave of the present situation that normal power cord, data wire are in the past put in a jumble, for family, office, factory provide environment more clean and tidy, attractive in appearance.

" flat cavity substance " in this specification and claims book, meaning the inside has flat cavity, outward appearance to be the object or the device of arbitrary shape.As this flat cavity substance is the hollow box that is box-like; For to overlook or to look up the device that is " one " font, "+" font, " * " shape etc., promptly comprise the rectangle frame structure as this flat cavity substance.This flat cavity substance can divide shell and lower casing two parts, and separable opening between last lower casing also can be solidified as a whole.

" plane scroll spring " in this specification and claims book, comprise coiling spring that flat metal, flat alloy make interior, even this coiling spring is not volute under the natural relaxation state, in being also contained in, as elongated sheet metal, alloy sheet under complete natural relaxation state, expert's Moving plate coiled coiling spring shape.

Description of drawings

Below three figure be the enforcement figure of scheme 1.1, scheme 1.2 and scheme 1.1 are structurally roughly the same, and be and simpler, so the figure summary.Scheme 2 structures are simpler, and also figure slightly.

Fig. 1 is the overall structure figure of Telescopic conductive wire,

Fig. 2 is the stereogram of strip winding drum,

Fig. 3 is the end view of strip winding drum.

Embodiment:

Scheme 1: be connected with plane scroll spring on the lead.

Scheme 1.1: an end of lead and the outer end of plane scroll spring are fixed together.

One, concrete structure:

As shown in Figure 1, conductor loop is similar to around a kind of internal structure in the flat cavity substance of tape measure, and this flat cavity substance has a pair of shell, is divided into lower casing (1) and last shell (2).The inboard center of lower casing (1) is fixed with a central shaft (6), one hole (19) is arranged on the central shaft, be placed with ringwise strip winding drum (4) between the last lower casing, lead (3) rouses on (4) outer rim around a few at strip winding, the wire guide (15) that lead outer end (8) is passed on the flat cavity substance sidewall is protruding, and electronic connector is gone up in welding, lead the inner is fixed on the strip winding drum, be surrounded with spring (5) in the strip winding drum inner chamber (17), be fixed on the strip winding drum after the inner electrical connection of spring outer end (10) and lead, be in the groove (19) that the spring the inner (11) that bends shape is engaged on central shaft, the spring of rolling-in can make strip winding drum (4) rotate around central shaft, drive lead simultaneously and be looped around automatically on the strip winding drum, reach the purpose of automatic contraction lead.During use, outside one draws lead, and lead drives strip winding drum backward rotation in elongation, and the backward rotation of strip winding drum impels spring constantly by rolling-in.

As shown in Figures 2 and 3, strip winding drum (4) has one than the little external diameter of flat cavity substance inner chamber, and the central opening (9) of accepting central shaft (6), strip winding drum (4) can rotate with respect to the shell central shaft that is formed by central shaft (6) under the effect of spring (5).There is the sheet section of a circle this strip winding drum bottom surface, the center of this sheet section is exactly central opening (9), this strip winding drum is gone up the outer rim (20) that also has an annular peripheral, outer rim is provided with opening or groove, inner and the spring outer end with fixing cord, lead is in normal way on the outer rim (20) of strip winding drum.The strip winding drum is made by plastics or metal.

This spring (5) is a plane scroll spring, or the coiling spring of making for common flat metal or flat alloy, and it has an outer end portion, and this spring outer end (10) is locked on a pair of groove that forms on the strip winding drum outer rim.Spring has the trend of natural relaxation, and this trend is with consistent around the rotation direction to the strip winding drum lead, and spring (5) opposing connection tape drum (4) is towards lead is applied a bias force around the direction of rotation to the strip winding drum.

As shown in Figure 1, the shell of flat cavity substance is generally circle, square or rectangular structure, also can be the cuboid frame structure, and a circumference sidewall is arranged on the flat cavity substance, which is provided with mark tongue and groove, makes the connection of arranging in pairs or groups each other of two shells.From central shaft (6) to shell edge one microscler shallow ridges is arranged, described shallow ridges internal fixation has electric conducting material (7), as sheet metal, wire etc.Electric conducting material the inner (12) extends central shaft (6) and locates, be bent into the part that the right angle makes progress even encases central shaft, electric conducting material outer end (13) extends the inward flange or the outward flange of shell, is stuck in tightly in the slit of shell edge, to be electrically connected with appliance electronic component.The slit and the shell of described central shaft, shallow ridges, metallic channel, shell edge are connected as a single entity, and are the plastic mould pressing structure.

Current path is: electronic connector of lead outer end welding, can be electrically connected with certain appliance electronic component, after lead passes the metallic channel of side wall of outer shell, its main part is looped around on the strip winding drum, after but lead the inner is welded or is tightened with the power spring outer end, be locked on a pair of groove of strip winding drum circumference sidewall, spring the inner is engaged on the groove of central shaft, the central shaft that coexists place bends rectangular electric conducting material the inner and closely contacts or weld and conduct electricity, the electric conducting material outer end extends flat cavity substance edge, to be electrically connected with certain appliance electronic component.

Two, when this Telescopic conductive wire during as the single cord in the Experiments of Electromagnetism, described lead is a single cord, and described spring is single spring.The flat cavity substance and the connected mode between appliance electronic component that are placed with lead and spring have following three kinds:

1, flat cavity substance two ends all are connected with electronic connector.Be described lead outer end (8) electronic connector of burn-oning, the electric conducting material outer end (13) of the described shell edge electronic connector (14) of also burn-oning.This is the split-type design between flat cavity substance and appliance electronic component.Described electronic connector can be banana plug, cylinder plug, metal clip etc., down together.

2, side connected mode.Electric conducting material outer end (13) is the sheet metal of a sheet metal or bending shape, the correspondence position of appliance electronic component housing also is provided with the sheet metal of corresponding metal sheet or bending shape, the correspondence position of while between flat cavity substance and appliance electronic component, be provided with the device of mutual chucking, the flat cavity substance is pressed toward appliance electronic component sidewall one, flat cavity substance and appliance electronic component just are stuck tightly, simultaneously, the sheet metal on the corresponding sidewall of the electric conducting material outer end (13) of flat cavity substance sidewall and appliance electronic component has just been realized electrical connection.The color of flat cavity substance and appliance electronic component shell should be consistent, makes between flat cavity substance and appliance electronic component seat behind the chucking, forms an integral body in appearance.

3, be combination type, promptly flat cavity substance and appliance electronic component are integrated.One or several flat cavity substances are hidden in the appliance electronic component housings, draw lead toward appliance electronic component side one, just can realize the electrical connection between appliance electronic component easily.This kind scheme not only can significantly reduce the shared experiment area of flat cavity substance and appliance electronic component, and very convenient, need not to look in addition lead.This concealed flat cavity substance, its lower casing (1), last shell (2) and inner conductive material (7) will change to some extent with the appliance electronic component of being fixed: the device (the appliance electronic component inserted block of pin etc. is arranged at the bottom in some electromagnetism instruments as mentioned) that appliance electronic component is installed, its shell can be connected as a single entity with the shell of flat cavity substance, cost falls in few mould; And electric conducting material (7) changes into and directly stretches out behind the lower casing (1) and a connector lug of appliance electronic component is electrically connected along the direction that is parallel to central shaft (6); Perhaps the flat cavity substance just directly is fixed in the bigger appliance electronic component box body, as is fixed in the ammeter box bodys such as ammeter, voltmeter.

Be fixed with below the device of appliance electronic component of two binding posts such as diode, resistor, bulb, need fix two flat cavity substances side by side; Be equipped with below the device of appliance electronic components such as triode, double-range ammeter, then should fix three flat cavity substances.Other equipment, the rest may be inferred.Be connected with the flat cavity substance that to fix a plurality of miniaturizations below the device of integrated package.

When described lead during,, several paxillas should be set as plug-in type electronic circuit board, magnetic paster type electronic circuit board as the lead on the electronic circuit board.Lead can take the air line and turn quarter bend under the stopping of paxilla.Described paxilla lower end is a pin, and the jack on size and the base plate is supporting; Perhaps the paxilla lower end is magnetic, and perhaps iron, cobalt, nickel material are contained in the paxilla lower end, so that the pillar physical efficiency is fixed on the magnetic wires plate.The upper end be cylindrical in the paxilla, also can be in paxilla upper end cover one annulus cover, the usefulness to reduce friction when changing the lead direction of routing, the paxilla top slightly slightly can prevent lead landing from the paxilla.The length of paxilla should be longer slightly to the distance on base plate surface than lead top edge.Like this, described lead is under the cooperation of paxilla, and lead can extend as required, and can take the air line and turn quarter bend, and lead is drawn as straight line under the effect of spring convergent force, and the pictorial diagram that is linked to be is consistent with the circuit diagram height, and is vivid, directly perceived, understandable.Lead under no external broach effect, auto retractable.

Lead (3) also can be strip metal sheet or banded alloy sheet.For making ribbon conductor can turn quarter bend easily in the wiring process, the sheet shape plane that should make lead is perpendicular to the experiment wiring board.

The apparent insulating material of lead is not essential.Lead does not have insulating material in appearance, is for the ease of intersecting at lead and electricity when linking to each other, making things convenient for wiring.The plug (particularly metal clip) of lead outer end directly is connected on a certain position of another lead, has promptly realized electrical connection, can make to become 90 ° of angles between lead.Intersect disjunct needs in order to satisfy lead, should be provided with the dead ring that can on lead, slide, this dead ring is made by insulating material such as electric wire rubber, resin, plastics, this dead ring needs 1cm long approximately, dead ring is enclosed within and wants the degree of tightness appropriateness on the lead, be enclosed within not landing on the lead with nature, under the finger effect, slidably be advisable.This dead ring can be enclosed within on the lead in advance, also can open a slit at the dead ring sidewall, and dead ring can be clipped on the lead.Owing to intersect continuous situation seldom, be preferably in the dead ring sidewall and open a slit, when needing, just be enclosed within on the lead.Certainly, lead does not have insulating material in appearance, is the safety meter, preferably selects for use dry cell or storage battery to make power supply, because the heaviness of low-tension supply, what instructors was generally selected for use on class is dry cell or storage battery.In fact, it is exposed that the binding post of low-tension supply also is generally, and this kind nuditing wire does not increase danger.

If lead has insulating material in appearance, for lead being intersected and electricity when linking to each other, can be 90 ° or 45 ° of angles between lead, should be provided with electric threeway socket, electric four-way socket, electric five-way socket etc., electric five-way socket is applicable to that lead intersects situation out of square.

Three, the Telescopic conductive wire of said structure also can be adapted as several strands more conveniently, is power line, data wire etc. as this lead, and method is:

Change above-mentioned lead into several strands of leads insulated from each other, several buss that are spiral shape insulated from each other should be arranged on the above-mentioned plane scroll spring side by side, these several buss are corresponding with several strands of leads, promptly quantitatively equate, these several strands of leads inner with all be fixed on after described several bus outer ends are electrically connected strip winding bulging on, the inner end portion of these several buss is in central shaft place and the inner electrical connection of several electric conducting materials insulated from each other, and these several electric conducting material outer ends externally are electrically connected.All the other structures are same as described above: a strand lead still is looped around on the strip winding drum in full, and the spring that is fixed with several buss still is coiled in the strip winding drum inner chamber, and the strip winding drum still is placed in the inner chamber of flat cavity substance, etc.

" bus " in this specification and claims book, the plane scroll spring that is meant and is overlaped is the bus of same spiral shape, this bus for insulation be fixed on sheet metal, alloy sheet, wire, alloy silk on the spring, be fixed on admittance circuit or spring itself on the spring.This is fixed on admittance circuit on the spring and is similar to admittance circuit on the printed circuit board (PCB), on the surface of this admittance circuit insulating material is arranged, as insulating varnish.This bus is that spring itself is meant that one of several buss are plane scroll spring; Or an index bus is plane scroll spring, and promptly several sizes, plane scroll spring that shape is identical are superimposed insulated from each otherly, form an apparent plane scroll spring.

Scheme 1.2: lead is spiral shape, and this spiral shape lead and plane scroll spring are side-by-side.Number of share of stock by lead can be subdivided into two kinds of situations again:

One, single cord: lead is the common planar volute spring, mainly uses Experiments of Electromagnetism.

Described lead is a single cord, and this single cord self is single conductive plane scroll spring.This spring holder has around a kind of the inside in the flat cavity substance of flat cavity, this spring outer end pass hole on the flat cavity substance sidewall protruding after, electronic connector in the welding can be electrically connected certain appliance electronic component.This spring the inner is fixed on the central shaft at flat cavity substance lumen centers place, this central shaft and flat cavity substance are fixed together, or be integrated, be that flat cavity substance, central shaft and spring the inner all maintain static, and the spring outer end can be moved relative to spring the inner, spring has the trend of natural relaxation, and this trend is consistent with the direction of the spring outer end being rolled up nearly flat cavity substance.With a kind of electric conducting material of also having of central shaft configured in parallel, this electric conducting material is inner to be electrically connected with spring is inner, and this electric conducting material place end stretches out the flat cavity substance and externally is electrically connected.

This shows, this scheme 1.2 and scheme 1.1 roughly the same, difference is: scheme 1.2 has been cast out strip winding drum (4) and the lead (3) in the scheme 1.1, and the direct protruding flat cavity substance in the spring outer end in the scheme 1.2 is electrically connected an electronic connector.Because of structure is more simple, so figure slightly.In like manner, there are the flat cavity substance of plane scroll spring and the connected mode of appliance electronic component also to have three kinds in the inner chamber in the scheme 1.2,, and no longer describe in detail because of identical with scheme 1.Its usage in Experiments of Electromagnetism is also identical with scheme 1.1.

Two, count strand, as power line, data wire.

Above-mentioned lead itself is the lead of common planar volute spring, can change system into several strands of telescopic leads, as power line, data wire more conveniently.

Curve on the sheet metal, alloy sheet, wire of common planar volute spring and be fixed with several buss insulated from each other side by side, this bus is the same with bus in the such scheme 1.1, also for being fixed on sheet metal, alloy sheet, wire, alloy silk on the spring, being fixed on admittance circuit or spring itself on the spring.This bus is coated on by flexible insulating material with plane scroll spring, and this bus can curve the spiral shape identical with the plane scroll spring shape.

The bus that is spiral shape insulated from each other is coiled in the flat cavity substance together with spring, several buss on this spring outer end stretch out the flat cavity substance and externally are electrically connected, this spring the inner is fixed on the central shaft at flat cavity substance lumen centers place, bus inner end portion on this spring the inner and several electric conducting materials insulated from each other the inners that extend herein are electrically connected, and this electric conducting material outer end is stretched out the flat cavity substance and externally is electrically connected.

Single cord in this scheme 1 is mainly used in the lead in the electromagnetism experiment, is just needing to utilize the elastic force of spring so that lead pulls into straight line, does not need to be provided with the device that stops the lead retraction; Several strands in this scheme 1 are mainly used in power line on the appliance electronic component, data wire etc., difference according to the appliance electronic component at several bursts of lead places, the difference of the elasticity power of used spring, and the actual operating position of this appliance electronic component, determine whether to be provided with the device that stops the lead retraction, be provided with groove as the sidewall of appliance electronic component, slide block is arranged in the groove, when slide block was pushed lead to, the extruding lead reached the purpose that stops lead to move.

Scheme 2: lead itself is exactly a helical spring, mainly as the single cord in the Experiments of Electromagnetism.

Select the alloy material resilient, that resistivity is low for use,, make microscler helical spring, as cylindrical helical spring as gunmetal etc.Spring two connects electronic connector, and this spring-like lead can take the air line more conveniently and turn quarter bend under the cooperation of paxilla.Its usage and such scheme 1 are similar, this no longer stating more.

Claims

1, a kind of lead that appliance electronic component is electrically connected, as single cord, power line, data wire, it is characterized in that: be fixed with plane scroll spring on the lead, plane scroll spring applies elastic force along the lead shrinkage direction to lead, lead can extend under external force, and this plane scroll spring comprises the coiling spring of flat metal, flat alloy coiled interior, even this coiling spring is not volute under the natural relaxation state, in being also contained in, down together.

2, lead as claimed in claim 1 is characterized in that,

One end of lead and the outer end of plane scroll spring are fixed together;

Or lead is spiral shape, and this spiral shape lead and plane scroll spring are side-by-side.

3, be fixed together as an end of lead as described in the claim 2 and the outer end of plane scroll spring, it is characterized in that, described ring spring is in ringwise strip winding drum inner chamber, described conductor loop is around strip winding drum outer rim, lead outer end is protruding externally is electrically connected for this, all is fixed on the strip winding drum after the inner and spring outer end of this lead is electrically connected, and spring the inner is fixed on the central shaft that extends the bulging lumen centers of strip winding place, central shaft maintains static, and the strip winding drum can rotate around this central shaft.

4, lead as claimed in claim 3 is characterized in that lead is strip metal sheet or banded alloy sheet.

5, be fixed together as an end of lead as described in the claim 2 and the outer end of plane scroll spring, it is characterized in that, described lead includes several strands of leads insulated from each other, as this lead is power line, data wire, these several strands of conductor loops are around strip winding drum outer rim, be fixed with several buss that is same spiral shape insulated from each other on the described spring, this spring holder is in strip winding drum inner chamber, all be fixed on the strip winding drum after the inner electrical connection corresponding of these several strands of leads with these several bus outer ends works, this spring the inner is fixed on the central shaft that extends strip winding drum lumen centers place, central shaft maintains static, and the strip winding drum can rotate around this central shaft.

6, as described in the claim 2 with the side-by-side spiral shape lead of plane scroll spring, it is characterized in that, described lead self is single conductive plane scroll spring, and the inner end portion of this plane scroll spring is fixed, and this spring outer end can be moved with respect to spring is inner.

7, as described in the claim 2 with the side-by-side spiral shape lead of plane scroll spring, it is characterized in that, be fixed with several buss that is same spiral shape insulated from each other on the described spring side by side, described lead is the bus on the spring, the inner end portion of this plane scroll spring is fixed, this spring outer end can be moved with respect to spring is inner, inner several electric conducting material the inners insulated from each other of going back and extend the central shaft place of spring are electrically connected, and the electric conducting material outer end externally is electrically connected.

8, as claim 5 or 7 described buss, it is characterized in that, described bus with side-by-side plane scroll spring be same spiral shape, this bus for being fixed on the sheet metal on the spring with insulating, alloy sheet, wire, the alloy silk, be fixed on the admittance circuit on the spring, or spring itself, this admittance circuit is similar to the admittance circuit on the printed circuit board (PCB), this bus is that spring itself is meant that one of several buss are plane scroll spring, or an index bus is plane scroll spring, be several sizes, the plane scroll spring that shape is identical is superimposed insulated from each otherly, forms an apparent plane scroll spring.

9, a kind of lead that each appliance electronic component is electrically connected, it is characterized in that: lead itself is the helical spring that gunmetal is made.