CN1812649B - Double-wire equidirectional spaced double-winding moving-coil loudspeaker - Google Patents

Abstract

A loudspeaker of double winding movable coil being wound in double wire spaced winding way is composed of vibration film and its fixing rack, alloy permanent magnet, hollow magnetic core of internal magnetism and its corresponding internal voice coils .It is featured as using said rack also as external magnetic pole, using internal spaces of said core to lay double winding voice coils and fixing winding on internal wall of coil with baseboard for reinforcing the fixture.

Description

Double-wire equidirectional spaced double-winding moving-coil loudspeaker

Because of the telephone set of the convenience of telephone set hand-free function, production and marketing manufacturer production and marketing at present all is with hand-free function basically, simultaneously, be receiver for different needs such as maintain secrecy must keep the sounding components and parts again.Traditional hand-free function mainly is to realize with corresponding power driving amplifier by installing sounding components and parts loud speaker additional; This has just increased loud speaker and weight thereof and its shared area and volume inevitably; Equally also make machine volume, weight, reliability (true and experience be proof repeatedly all: under the identical prerequisite of other condition, failure rate often always becomes high-positive correlation with the number of component number) and design and the corresponding increase of manufacturing cost inevitably with difficulty; Especially in the face of the development and the consumer market demand general trend of more and more miniaturization, ultra-thinization, ultralightization, then more demonstrate most important property such as its market competitiveness height.Receiver all is the sounding components and parts that impedance is very high, power is very little generally for loud speaker; Therefore it is difficult to replace loud speaker and function thereof; And very big because of the impedance height with the D.C. resistance that line carefully makes its coil, add because of high impedance and make power output very low; These factors add makes its power consumption and heating also just inevitable equally very big together, so its energy utilization efficiency is very low, especially for widely-used, that quantity is extremely huge mobile phone and other audio communication equipment; Energy utilization efficiency is low just to be meaned must strengthen and transmits and receives power, and this just increases amount of electromagnetic radiation, the particularly electromagnetic radiation intensity bigger to human harm inevitably; There are a kind of wide-spread and the what is called of using to replace the receiver of nearly body to reach reducing IVR equipment to comprise that mobile phone is amount of radiation and the intensity of mobile phone and to the extent of injury of human body with ear (plug) machine; Actually this is not so; This way only can be strengthened but not weaken electromagnetic pollution and the harm to human body and surrounding enviroment; Because connect earphone electric wire and earphone voice coil loudspeaker voice coil winding resistance and between them, comprise and this machine between distributed capacitance (amount) between formed mutually one and/or a plurality of newly be equivalent to the capacitance-resistance coupling and with the electromagnetic wave repeat transmitted and the receiver of induction type; Promptly this moment earphone and on line thereof to have served as antenna and the scope more much longer than airborne antenna, that lay of strengthening propagating electromagnetic radiation much also wide; The scope and the intensity of electromagnetic radiation has just been strengthened in the stack of these factors greatly, and the harm nature is just wider more greatly than nearly body earphone; Also have a kind of same wide-spread with use even be exactly to increase so-called radiation proof pad pasting to reach the electromagnetic radiation and harm purpose that weakens audio communication equipment such as mobile phone widely than increasing earphone; This also is a kind of real erroneous tendancy that can realize that is difficult in fact; Because detecting, many authoritys fact proved that most so-called radiation proof pad pastings or other so-called protection film basically do not possess radiation protection ability, seldom even at all can not alleviate any radiation and energy thereof; Even if very can effectively alleviate radiation and harm even so, also transmit and receive signal strength signal intensity with sacrifice is cost; Because can alleviate the means of radiation intensity mainly is nothing but shielding electromagnetic wave; This just must cause transmitting and receiving power with increasing is that cost is offset diaphragm to shielding electromagnetic waves; The amount of electromagnetic radiation and the intensity of can't help consuming energy more and also can positive correlation ground increasing human body because of the increase of amount of electromagnetic radiation and intensity are the extent of injury; Also the increase because of power is also significantly shortened the time that battery life significantly shortens, use the back of at every turn charging; Even if reduce emission and received power to reduce electromagnetic hazard and pollution and battery consumption to improve directivity (the radio wave directivity is very strong); But this just makes that wireless audio communication device orientation property is extremely strong; Speech quality such as sound suddenly big or suddenly small, smudgy, intermittent in addition the conversation fault as repeatedly the broken string etc. functional reliability and other performance are greatly reduced, solution remain add high-power, so its harmful consequences is basic identical; And these factors also all can have a strong impact on the product market competition ability increases the increase (battery of mobile phone is generally all more expensive, tens of at least even up to a hundred yuans) of scrapping the environmental pollution accelerating etc. to produce and use cost because of battery with serious; Increase loud speaker and can effectively reduce the electromagnetic radiation and the harm of and surrounding enviroment next to the shin, but have aforesaid such as increasing not enough problems such as components and parts and volume thereof, area, weight, cost to human body because of answering to die with respect to the remote-wireless that receiver is sayed.Obviously; Innovation sounding components and parts that if can the low radiation hazard of the confidentiality of receiver and loud speaker be combined and be equipped with innovation and can (be prone to) control and drive power amplifier; Then it can not only effectively overcome above-mentioned prior art and Products in Series shortcoming, and its serial main advantages is that advantages such as the market share all are conspicuous all will finally be embodied in the market competitiveness especially.

Total be exactly the double-wire equidirectional spaced double-winding moving-coil loudspeaker from one goal of the invention of the present invention for solving that prior art and Products in Series problem design, existing with principle, scheme and major advantage continue to introduce as after.The present invention directly utilizes receiver and the position that is had thereof, volume, area, weight with it; And get rid of and decide circle and vibrating diaphragm and iron core, change so that the vibrating diaphragm of direct sounding is integrated respectively but wire circle seldom is moving-coil and strong magnetic permanent-magnet alloy replaces, with change receiver lean on the superfine number of turns in line footpath a lot of and resistance is big, power consumption and heat production are all more decide circle generate an electromagnetic field earlier and magnetize iron core, the indirect sounding of vibrating diaphragm is inhaled, put to the suction, the thrust that are produced by the iron core after the magnetization again operation principle and pattern; Big and the little tonequality of integrated distortion, the number of turns few and easy increase line higher with sensitivity more true to nature is directly so resistance energy consumption and heating are littler because of the moving-coil space; But it can bear and export very big audio power; Not only solve receiver and decided serious distortion even hoarse unpleasant to hear all difficult problems such as serious noise that circle is little such as power, energy consumption is high, the easy distortion of sound causes because of the vibrating membrane space is extremely limited when especially sound is big; Also magnetic material just can obtain powerful permanent magnetic because of the superpower magnetic that adopts strong magnetic permanent-magnet alloy and have only needs seldom with same powerful magnetic reserve capability; Make product of the present invention can extremely easily do very for a short time, very gently, very thin but its tonequality, power and sensitivity is very excellent; Thereby small-sized, ultra-thin, the ultralight that has solved that existing product needs to be resolved hurrily, a high-power and serial difficult problem such as high tone quality, high sensitivity have satisfactorily realized the present invention and goal of the invention from a total inventive concept comprehensively.

Accompanying drawing and operation principle and advantage explanation:

Contrast accompanying drawing: Y is a loud speaker; V is the magnet of Y; Q is moving (sound) circle of Y, and B is for reinforcing the specially designed backplane level of Q; X is the hollow magnetic core, be the internal magnetic pole of Q; Z is the vibrating membrane of Y, and P is the fixed support of the Z Q outer magnetic pole of holding concurrently; Two group windings of the coil M of Q are respectively FF ' and GG '.

The contrast accompanying drawing is further introduced structure, function and innovation advantage: loud speaker Y is because of adopting the permanent magnetism ferromagnetic material, so its magnet V does very thinly, magnetic core X also makes hollow type, this has just alleviated weight and volume greatly; In addition, because of magnetic core be hollow type, so available in it space as lay moving-coil Q and activity space, this makes loud speaker miniaturization more with regard to having saved moving-coil and movable a lot of spaces that should account in addition thereof again; Moreover; But moving coil winding of the present invention is a coil change traditional single line list around single group series connection for double-wire spaced two groups and can be singly be absolute coil with the independent winding of multiple usage such as serial or parallel connection again and purposes; Make inside and outside footpath and the weight of every group of coil and effectively (promptly produce and cutting magnetic line) line length with the exert oneself size and the uniformity and resistance (comprising D.C. resistance and AC impedance) etc. and volume and increase power output and reduce that distortion promptly improves the closely-related serial important indicator of tonequality (see after and state) and data are all accomplished highly consistent simultaneously; And these just traditional voice coil loudspeaker voice coil significant drawback with too far behind to catch up; (D.C. resistance reduces power output because of direct power consumption and generates heat even the thing of burning voice coil loudspeaker voice coil also happens occasionally, is not rare like the D.C. resistance of its single coil and energy consumption thereof; Comparatively speaking AC resistance be impedance generally do not consume energy do not generate heat yet) be merely tradition series connection voice coil loudspeaker voice coil 1/2, be under receiver or hands-free state, all can only appoint one group of voice coil loudspeaker voice coil when only needing small volume to reduce volume and economize on electricity to prolong battery service time and life-span; When the big volume of needs parallel connection voice coil loudspeaker voice coil D.C. resistance be merely tradition series connection voice coil loudspeaker voice coil 1/4, these are because the number of turns and the D.C. resistance of each of two absolute coils are merely 1/2 of its series coil; Because of being equivalent to strengthen one times of line footpath, its D.C. resistance, parallel connection is able to reduce by half again again simultaneously; When needs utmost point amount of bass, also can connect; This shows that its adaptability, applicability and bag (holding concurrently) capacitive is very wide very strong; Advantage is more really also important, because the place of the major function of these most just audio communication instruments and use value; The 4th; Not only make coil diameter increasing and direction also outside because of expanding; Magnetic core is designed to the hollow magnetic core and moving-coil is designed to inner ring and corresponding internal layer winding thereof; Inner ring particularly of the present invention because of coil attached on the speech coil framework inwall, only if the probability that can be difficult to by the protective effect of the voice coil loudspeaker voice coil outer wall of no winding promptly take place with the serious this possibility of degree that all is worn through to outer wall of magnetic core friction is very little; But the backplane level B that also is an about 0.1-1mm Bao Kehou in the voice coil loudspeaker voice coil bottom in addition is to strengthen support force; Add that voice coil loudspeaker voice coil top and vibrating membrane directly firmly glued joint even with inside and outside type voice coil loudspeaker voice coil and vibrating membrane directly being made of one and resistance to deformation effectively; These also are the serial important distinct advantages that the present invention just possibly have; So can effectively prevent the real core magnetic core of magnetic seam formula loud speaker that common traditional double-deck magnetic pole constitutes because of moving-coil coil long-term motion and heating or make moist dilatancy and make double-deck magnetic pole produce displacement because of the fastener of collision or fixing double-deck magnetic pole such as Luo silk nail or binding agent such as glue are loosening, make the powerful noise of coil and the magnetic core little distortion of friction sound and generation after coil covering (because of the enamelled wire enamelled coating very thin and descended by thermal softening or sex change such as adhesive force even break etc. very easy to be very fast) is by the magnetic core worn-off] or dual-purpose space operation formula; Distortion and displacement and adverse consequences thereof have not only effectively been prevented; Also effectively alleviated weight and/or volume, and efficiently utilized inner magnet field force and density of line of magnetic force far above outside, magnetic flux density also far above the magnetic signature of outside; When it interacts (homo-polarity magnetic repels each other, the coupling of heteropolarity magnetic force) at the powerful constant permanent magnetic that produces with permanent magnet even this only can produce more weak alternating magnetic field and magnetic force with regard to making moving-coil only pass to light current, also can produce the active force that same powerful suction, repulsion enlarged markedly (being equal to amplification) to it because of powerful permanent magnetic; Thereby strengthened the movable energy of moving-coil, the energy that to make its vibrating membrane that promotes to be bonded as one with it be sounding body Z is also grown simultaneously; That is less alternating magnetic field (power) can be by means of stronger permanent magnetic, only to need to consume less sounding power be that portion of energy that cost just can be at an easy rate also converts the strength of part permanent magnetic to sounding required consumption promptly promotes the moving kinetic energy of voice coil loudspeaker voice coil and vibrating membrane fortune (shaking) and is converted into further therefrom that to promote kinetic energy that air fortune (shaking) moves be the acoustic energy of sounding; Thereby available less input power also can obtain big volume; That is increased the power output of moving-coil; That is to say that less alternation magnetic force can be amplified, can make so available less input power obtains bigger power output the electric energy and the caloric value of further frivolous small-sized and high-qualityization of loud speaker of the present invention and power driving circuit and corresponding components and parts thereof, consumption also littler because of the increase of power output according to the law of conservation of energy principle by stronger permanent magnetic; Thereby significantly reduce sending and receiving power and caloric value and battery and power consumption thereof and environmental pollution and use cost; As because of only needing less sounding input power, just make and only need very little audio input signal just can reach the conversation purpose, be equivalent to improve machine sensitivity and speech quality as reducing correspondent tropism and broken string etc., this just can make to launch all two-wayly to reduce, mean no matter be that the transmitting-receiving power of the promptly corresponding with it IVR receiving equipment of quantity and transmitting power or the receiving equipment of cell site and transmitter thereof can both two-wayly reduce with received power; Fixing branch (holder) the frame P of the vibrating membrane Z of loud speaker Y and voice coil loudspeaker voice coil Q make with magnet with wide and parallel; And because of its with magnet with wide and parallel, again be use with magnet be that the identical permanent magnetic material of hollow magnetic core is made with the powerful permanent magnetic force of tool; So be also used as outer magnetic pole and invigoration effect in the permanent magnetic of moving-coil and effect, the magnetic force strengthening effect of inner ring extremely significantly and is further made the frivolous miniaturization of loud speaker; Thereby make the overall volume of loud speaker and weight reduce to bottom line; These favorable factors all further reduce volume, weight, caloric value and energy resource consumption and the environmental pollution and the use cost of the mobile phone that the especially extensive production and marketing of complete machine uses more effectively, as extending battery life and the sending and receiving power that reduces cell site's quantity and (transmitting power) scale and emission and receiving equipment etc. cause to environmental pollution such as the electromagnetic hazard of human body and refuse battery quantity and reduce the battery power consumption and prolong the battery stand-by time and serial significant advantage such as the raising market competitiveness (frivolous miniaturization be fundamental mark and lower calorific value is frivolous small-sized basic prerequisite).

Embodiment and operation principle of the present invention and advantage supplementary notes: contrast accompanying drawing; So loud speaker Y because of adopt permanent magnetism ferromagnetic material its magnet V and magnetic core X all do very thin, general 0.2-0.5cm in addition more (surpass) thin promptly enough; Magnetic core X makes hollow type and will move the unsettled the top that is placed in magnetic core of (sound) circle Q is that magnetic pole place, moving-coil wall are to keep 0.1-0.2mm intermittently to be advisable with magnet core wall; The magnetic line of force at magnetic pole place is the most concentrated, the die magnetic force of density is the most powerful because have only; The degree of depth of laying with facial planes in the voice coil loudspeaker voice coil winding and magnetic core topmost the plane flush basically, to ensure the voice coil loudspeaker voice coil Shi Douke cutting magnetic line and produce maximum promotion vibrating membrane and be synchronized with the movement that thereby to obtain the maximal audio power output be max volume for the power of i.e. vibration to greatest extent that no matter moves up and down; The shape of vibrating membrane can be that matrix, convex, plane, round, square type or other Any shape or its combined shaped all can; Present embodiment is that further conserve space adopts plane, but this to be not the present invention can only adopt planar shaped.

Serial main advantages below the present invention also has: because the voice coil loudspeaker voice coil of loud speaker of the present invention is the separate double winding, can change impedance and power through single the use between each winding with, series, parallel or combination, but so the double as receiver; And serial great innovation and advantages such as ultra-thin, ultralight, subminaturization (can do also little also gently also thin more much than receiver earphone) and high sensitivity, high effect and high-output power and tonequality grace, distortion be little are arranged; These advantages freely are selected arbitrarily to converse for the needs at any time and the hobby that realize and satisfy melodious grace of product frivolous miniaturization, especially tonequality and consumer and the crucial serviceability and the consumption demand aspect of many decision market shares such as Music Appreciation mode provide very big convenience and competitiveness; As be beneficial to that so-called ear (plug) machine etc. popular in the great mobile phone of correction such as consumption alleviates radiation and to user's erroneous tendancies such as harm, because of using earphone not only to bother inconvenience and being equivalent to and to have prolonged radiation real in having increased radiation and harmfulness because of the earphone line.

The present invention integrates above-mentioned serial main advantages; So tool applications well and market prospects; As except that the above and mobile phone etc. require the frivolous small-sized low energy consumption lower calorific value application, such as wide too with the application in frivolous small-sized high tone quality electronic applications such as the notebook computer in the huge market of tool, sounding electronic dictionary and products thereof with mobile phone.

Claims (1)

1. double-wire equidirectional spaced double-winding moving-coil loudspeaker, ferromagnetism alloy permanent magnet connect and fixedly vibrating membrane fixed support and hollow magnetic core, connection of vibrating membrane fixed support and fixing vibrating membrane; The hollow magnetic core is made up of inside and outside magnetic pole; The built-in double winding moving-coil of internal magnetic pole, the double winding moving-coil is double-wire spaced, separate, and the double winding moving-coil is divided into interior and outer two; The interior type double winding moving coil winding of double winding moving-coil is fixed on the moving-coil inwall; External form double winding moving coil winding is for fixing single layer winding is on the moving-coil inside and outside wall respectively, and the double winding moving-coil has backplane level, and vibrating membrane connects and fixing moving-coil; Vibrating membrane fixed support double as outer magnetic pole, the moving coil winding list is used, serial or parallel connection uses; It is characterized in that shared vibrating membrane of this double-wire equidirectional spaced double-winding moving-coil loudspeaker and inside and outside wall moving-coil.