CN209017298U - Loudspeaker - Google Patents

Abstract

The utility model discloses a kind of loudspeaker, including vibrational system, and vibrational system includes vibrating diaphragm and Voice coil assemblies, and Voice coil assemblies include: the first voice coil, including the first noumenon and two first leads, and the first noumenon has the first end of neighbouring first lead；Second voice coil, including the second ontology and two second leads, the second ontology have the second end of neighbouring second lead；First voice coil is connected with the second voice coil, and first end fits in the second end.The utility model loudspeaker can realize the correction to Voice coil assemblies position, so that vibration of the Voice coil assemblies in magnetic field is more stable, to keep vibration vibration of membrane also more stable, effectively improve the whole acoustical behavior of loudspeaker.

Description

Loudspeaker

Technical field

The utility model relates to acoustic-electric apparatus field, in particular to a kind of loudspeaker.

Background technique

Minimized electro-acoustic device is widely used in the portable electronic devices such as mobile phone, laptop, hearing aid.With these The fast development of portable electronic device, people are also higher and higher to the requirement for being applied to Minimized electro-acoustic device therein.Voice coil As the moving part of mini-sound device, when alternation tone currents passes through voice coil, voice coil, which is generated, to be changed and changes with tone currents Magnetic field, the effect that the magnetic field of the magnetic circuit system of changing magnetic field and Minimized electro-acoustic device is attracted or repelled leads to voice coil Mechanical oscillation are generated to drive the diaphragm oscillations of Minimized electro-acoustic device, diaphragm oscillations push air repeatedly and make a sound, can See that voice coil affects the performance of entire Minimized electro-acoustic device.Traditional voice coil is usually single integrated molding, ideally sound Circle should be vibrated repeatedly in predeterminated position, but in actual operation, voice coil can deviate default setting in vibration processes, deviate Cause to change by the magnetic field strength of voice coil after predeterminated position, and the offset of this position is difficult to be monitored to, i.e., can not Correction, it is unstable so as to cause voice coil vibrations, and then keep vibration vibration of membrane also unstable, influence the acoustics of electro-acoustic element entirety Energy.

Utility model content

The main purpose of the utility model is to propose a kind of loudspeaker, it is intended to solve how to improve loudspeaker acoustical behavior Technical problem.

To achieve the above object, the utility model proposes loudspeaker, including vibrational system, the vibrational system includes vibrating diaphragm And Voice coil assemblies, the Voice coil assemblies include:

First voice coil, including the first noumenon and two first leads, the first noumenon have the neighbouring first lead First end；

Second voice coil, including the second ontology and two second leads, second ontology have neighbouring second lead The second end；First voice coil is connected with the second voice coil, and the first end fits in the second end.

Preferably, first voice coil is Nian Jie by glue with the second voice coil.

Preferably, first voice coil and the second voice coil are formed using the coiling of enamel-cover wire rod, the surface of the enamel-cover wire rod Coated with tack paint, first voice coil is bonded in second voice coil by the tack paint on neighbouring enamel-cover wire rod Together.

Preferably, the first end is formed with embedded structure, and the second end is formed with suitable with the embedded structure The fit structure matched.

Preferably, the first end be formed with radially adjacent setting first protrusion and first recess, described second It is end formed to have corresponding second protrusion and the second recess.

Preferably, the first end is formed with the first protrusion and/or the first recess circumferentially, the second end Portion is formed with corresponding second protrusion and/or the second recess.

Preferably, the first noumenon and second ontology are rectangular ring structure, the first noumenon and described the Two ontologies have two opposite the first turnings and two opposite the second turnings；

Two first leads are drawn from two first corner locations respectively, two second leads respectively from Two second corner locations are drawn.

Preferably, two first leads and two second leads according to clockwise direction fair line or according to Counter clockwise direction fair line.

Preferably, the loudspeaker further includes frame, and the frame has accommodating cavity, and the Voice coil assemblies are placed in described Accommodating cavity, the frame are equipped with two the first conductive parts for be electrically connected with two first leads, and be used for Two the second conductive parts of two the second lead electrical connections.

Preferably, the vibrational system further includes the centring disk being fixed together with the vibrating diaphragm；

The centring disk includes the interior fixed part connecting with the central part of the vibrating diaphragm, the edge part company with the vibrating diaphragm The outer fixing portion connect and the cantilever being connected between the interior fixed part and the outer fixing portion；

The interior fixed part is equipped with interior pad, and the outer fixing portion is equipped with outer pad, two first leads and Two second leads are electrically connected with the interior pad.

Preferably, it is set on the interior fixed part there are four interior pad, the outer fixing portion is equipped with and four interior pads one Four outer pads of one corresponding electrical connection, two first leads and two second leads respectively with four interior welderings Disk electrical connection.

Preferably, first voice coil and second voice coil are connected in series.

The utility model loudspeaker in the first voice coil and the second voice coil of split settings by that will be connected, so that in voice coil During component operation, the first voice coil and the second voice coil since the position in magnetic field is different, pass through the first voice coil and The magnetic induction intensity of second voice coil is also different, so that the induced electromotive force that the first voice coil and the second voice coil generate is also different, passes through The voltage difference of the first voice coil and the second voice coil junction is detected, the first voice coil and the second voice coil can be calculated in real time in magnetic field Relative position, i.e. the whole vibration position in magnetic field of Voice coil assemblies.If Voice coil assemblies deviate default position in vibration processes It sets, then the position of the first voice coil and the second voice coil can change, and pass through the magnetic induction of the first voice coil and the second voice coil at this time Intensity can also change, so that the induced electromotive force that the first voice coil and the second voice coil generate can also change, i.e. the first sound It encloses and changes with the voltage difference of the second voice coil junction, by detecting that the variation of voltage difference can obtain Voice coil assemblies entirety Offset is realized so as to make Voice coil assemblies return to predeterminated position in such a way that external input compensates electric current to Voice coil assemblies position The correction set, to keep vibration vibration of membrane also more stable, effectively mentions so that vibration of the Voice coil assemblies in magnetic field is more stable The whole acoustical behavior of high loudspeaker.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the seperated schematic diagram of one embodiment of Voice coil assemblies in the utility model；

Fig. 2 is the Structure explosion diagram of one embodiment of the utility model loudspeaker.

Drawing reference numeral explanation:

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding, Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture) Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.

In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one A this feature.In addition, the meaning of the "and/or" occurred in full text is, including three schemes arranged side by side, by " A and/or B for ", The scheme met simultaneously including A scheme or B scheme or A and B.In addition, the technical solution between each embodiment can be mutual In conjunction with, but must be based on can be realized by those of ordinary skill in the art, when mutual lance occurs in the combination of technical solution Shield or cannot achieve when, will be understood that the combination of this technical solution is not present, also not in the protection scope of the requires of the utility model Within.

The utility model proposes a kind of loudspeakers.

In the utility model embodiment, as depicted in figs. 1 and 2, which includes vibrational system, the vibrational system Including vibrating diaphragm 40 and Voice coil assemblies, which includes:

First voice coil 10, including the first noumenon 11 and two first leads 12, the first noumenon 11 have neighbouring described The first end 13 of first lead 12；

Second voice coil 20, including the second ontology 21 and two second leads 22, second ontology 21 have neighbouring described The second end 23 of second lead 22；First voice coil 10 is connected with the second voice coil 20, and the first end 13 is bonded In the second end 23.

In the present embodiment, loudspeaker generally includes frame 30, vibrational system and magnetic circuit system, wherein frame 30 encloses Accommodating cavity is formed, magnetic circuit system and vibrational system are set to accommodating cavity, and magnetic circuit system includes conductive magnetic yoke 70 and is mounted on magnetic conduction Centring magnet 71 and side magnet 72 on yoke 70, further include the center magnetic conductive board 80 being set on centring magnet 71 and be set to side magnetic Side magnetic conductive board on iron 72, wherein side magnetic conductive board is molded in the present embodiment in frame 30；Centring magnet 71, center magnetic conduction Plate 80 and while magnet 72, while magnetic conductive board between form flux gap, vibrational system includes vibrating diaphragm 40 and Voice coil assemblies, Voice coil assemblies It is located on flux gap, vibrating diaphragm 40 is connected to one end of Voice coil assemblies.Vibrational system can also include for vibrating diaphragm 40 and sound Reinforcement part 50 can be also arranged in the centring disk 60 that coil assembly plays a supportive role, the other side of vibrating diaphragm 40, to adjust whole acoustics Performance.In the course of work of loudspeaker, magnetic field is generated in flux gap, Voice coil assemblies are powered, and the Voice coil assemblies of energization are in magnetic The effect by Ampere force is understood in and generates vibration, and the Voice coil assemblies of vibration will drive vibrating diaphragm 40 and vibrate together, to make vibrating diaphragm 40 instigate air sounding.Voice coil assemblies are usually formed by conductive metal wire coiling, after voice coil coiling molding, it will usually be formed cyclic annular Ontology and be connected to the lead in body peripheral face, the one end of the usual adjacent body of lead.

It should be noted that first end 13 refers to neighbouring in the axial upper end walls of the first noumenon 11 in the present embodiment One end of two first leads 12, first end 13 can be in planar, can also concave-convex surface；The definition and first end of the second end 23 Portion 13 is corresponding, and only need to meet first end 13 may connect to the second end 23.Vibrating diaphragm 40 be connected to the first voice coil 10 or The one end of second voice coil 20 not connecting with another one, for example, the first voice coil 10 also have far from two first leads 12 third end, vibrating diaphragm 40 may connect to third end.

The utility model loudspeaker, which will pass through, to be connected in series in the first voice coil 10 and the second voice coil 20 of split settings, so that During Voice coil assemblies work, the first voice coil 10 and the second voice coil 20 are passed through due to the position difference in magnetic field The magnetic induction intensity of first voice coil 10 and the second voice coil 20 is also different, thus the induction that the first voice coil 10 and the second voice coil 20 generate Electromotive force is also different, and by detecting the voltage difference of the first voice coil 10 and 20 junction of the second voice coil, first can be calculated in real time The whole vibration position in magnetic field in the relative position of voice coil 10 and the second voice coil 20 in magnetic field, i.e. Voice coil assemblies.If voice coil Component deviates predeterminated position in vibration processes, then the position of the first voice coil 10 and the second voice coil 20 can change, at this time It can also change across the magnetic induction intensity of the first voice coil 10 and the second voice coil 20, thus the first voice coil 10 and the second voice coil 20 The induced electromotive force of generation can also change, i.e. the first voice coil 10 and the voltage difference of 20 junction of the second voice coil change, By detecting that the variation of voltage difference can obtain the offset of Voice coil assemblies entirety, so as to compensate the side of electric current by external input Formula makes Voice coil assemblies return to predeterminated position, the correction to Voice coil assemblies position is realized, so that vibration of the Voice coil assemblies in magnetic field It is more stable, to keep the vibration of vibrating diaphragm 40 also more stable, effectively improve the whole acoustical behavior of loudspeaker.

Further, first voice coil 10 is Nian Jie by glue with the second voice coil 20.In the present embodiment, by first end Portion 13 is be bonded with glue with the second end 23, realizes the firm of the first voice coil 10 and the second voice coil 20 by simply and easily mode Connection.It is understood that glue would not influence the electric current flowing between the first voice coil 10 and the second voice coil 20, to realize first The electrical series of voice coil 10 and the second voice coil 20.

Further, first voice coil 10 and the second voice coil 20 are formed using the coiling of enamel-cover wire rod, the enamel-cover wire rod Surface be coated with tack paint, first voice coil 10 passes through the self-adhesion on neighbouring enamel-cover wire rod with second voice coil 20 Property paint bonds together.In the present embodiment, the enamel-cover wire rod itself coated with tack paint has certain viscosity, by enameled wire Material around combinate form at the junction of the first voice coil 10 and the second voice coil 20 can be connected with each other under the action of enameled wire stickiness itself, To realize the connection of the first voice coil 10 and the second voice coil 20.

Further, the first end 13 is formed with embedded structure, the second end 23 be formed with it is described chimeric The fit structure of physical fit.In the present embodiment, embedded structure, which can be, is additionally connected to first end 13, be also possible to First voice coil 10 is integrally formed；The generation type of fit structure is identical as embedded structure.Pass through embedded structure and fit structure Mutually interlocking, can increase the contact area of first end 13 Yu the second end 23, while also can increase first end 13 and second The direction that end 23 limits mutually makes the limit mutually in a plurality of directions of first end 13 and the second end 23, improves first The bonding strength of voice coil 10 and the second voice coil 20, to improve stability of the Voice coil assemblies in vibration processes.

Further, the first end 13 is formed with the first protrusion and the first recess of radially adjacent setting, described The second end 23 is formed with corresponding second protrusion and the second recess.In the present embodiment, the number of the first protrusion and the second recess Amount can be multiple and be arranged along the spaced radial of first end 13 that the quantity of second protrusion and the second recess can also be multiple and edge The spaced radial of the second end 23 is arranged, and the first protrusion cooperates with the second recess, and the second protrusion cooperates with the first recess, to increase The contact area of first end 13 and the second end 23, thus the bonding strength of enhancing the first voice coil 10 and the second voice coil 20.

Further, described as shown in Fig. 2, the first noumenon 11 and second ontology 21 are rectangular ring structure The first noumenon 11 and second ontology 21 have two opposite the first turnings and two opposite the second turnings；Described in two First lead 12 is drawn from two first corner locations respectively, and two second leads 22 are respectively from two described second Corner location is drawn.In the present embodiment, preferably in tool, there are four the rectangles of curved corners to be arranged for the first noumenon 11, four arcs It include two opposite first turnings in turning, two first leads 12 are drawn from two first corner locations respectively, can be reduced the first sound Influence of two first leads 12 connecting in 10 vibration processes with other structures to the first voice coil 10 is enclosed, keeps the first voice coil 10 whole Uniform force reduces waving for the first voice coil 10.The shape of second ontology 21 is corresponding with the first noumenon 11, and two second draw Line 22 is drawn from two second corner locations respectively.By the way that first lead 12 is drawn from two first corner locations of the first noumenon 11 Out, while by the second lead 22 from two second corner locations of the second ontology 21 it draws, it is vibrated Voice coil assemblies can be effectively reduced The influence of first lead 12 and the second lead 22 to Voice coil assemblies in journey improves the stability of Voice coil assemblies vibration, to mention The high acoustical behavior of loudspeaker entirety.

Further, two first leads 12 and two second leads 22 according to clockwise direction fair line or According to counter clockwise direction fair line.In the present embodiment, two first leads 12 are identical as the fair line direction of two second leads 22, energy It is convenient that coiling is synchronized to the first voice coil 10 and the second voice coil 20 in process of production, production efficiency is improved, while making to vibrate The Wiring structure of system more normative and reasonable.

Further, the loudspeaker further includes frame 30, and the frame 30 has accommodating cavity, the Voice coil assemblies accommodating In the accommodating cavity, the frame 30 is equipped with two the first conductive parts for being electrically connected with two first leads 12, And two the second conductive parts for being electrically connected with two second leads 22.Two first conductive parts are for realizing to first The energization of voice coil 10, two second conductive parts realize the first sound for realizing the energization to the second voice coil 20, then by outside line Circle 10 is electrically connected with the second voice coil 20.

Further, as shown in Fig. 2, the vibrational system further includes the centring disk being fixed together with the vibrating diaphragm 40 60；The centring disk 60 includes the interior fixed part connecting with the central part of the vibrating diaphragm 40, the edge part with the vibrating diaphragm 40 The outer fixing portion of connection and the cantilever being connected between the interior fixed part and the outer fixing portion；It is set on the interior fixed part Have an interior pad, the outer fixing portion is equipped with outer pad, two first leads 12 and two second leads 22 with The interior pad electrical connection.

In the present embodiment, centring disk 60 is used to form vibrational system and flexibly support, and guarantees voice coil vertically without sending out Raw skew is effectively prevented the polarization of vibrating diaphragm 40；Centring disk 60 is made by flexible circuit board in the present embodiment simultaneously, voice coil The lead of component directly be electrically connected with the interior pad on centring disk 60 after drawing, and is not needed to hang and is set lead, therefore can be into one Step avoids polarizing；Specifically, interior fixed part connect setting by cantilever feature integral with outer fixing portion, and interior pad is with outer pad by leading The electrical connection of electric layer copper foil, outer pad with external circuit for being electrically connected, interior pad and two first leads 12 and two second leads 22 Electrical connection, to realize being electrically connected for Voice coil assemblies and external circuit.

Further, it is set on the interior fixed part there are four interior pad, the outer fixing portion is equipped with and four interior pads Correspond four outer pads of electrical connection, two first leads 12 and two second leads 22 respectively with four institutes State interior pad electrical connection.In the present embodiment, two first leads 12 and two second leads 22 are electrically connected with four interior pads respectively, Four interior pads are electrically connected with four outer pads respectively, so as to make the company of each interior pad and first lead 12 and the second lead 22 It connects more stable, improves the stability of loudspeaker entirety.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (11)

1. a kind of loudspeaker, including vibrational system, the vibrational system includes vibrating diaphragm and Voice coil assemblies, which is characterized in that described Voice coil assemblies include:

First voice coil, including the first noumenon and two first leads, the first noumenon have the of the neighbouring first lead One end；

Second voice coil, including the second ontology and two second leads, second ontology have the of neighbouring second lead Two ends；First voice coil is connected with the second voice coil, and the first end fits in the second end.

2. loudspeaker as described in claim 1, which is characterized in that first voice coil is Nian Jie by glue with the second voice coil.

3. loudspeaker as described in claim 1, which is characterized in that first voice coil and the second voice coil using enamel-cover wire rod around System is formed, and the surface of the enamel-cover wire rod is coated with tack paint, and first voice coil and second voice coil pass through neighbouring Tack paint on enamel-cover wire rod bonds together.

4. loudspeaker as described in claim 1, which is characterized in that the first end is formed with embedded structure, and described second It is end formed to have the fit structure being adapted to the embedded structure.

5. loudspeaker as claimed in claim 4, which is characterized in that the first end is formed with the of radially adjacent setting One protrusion and the first recess, the second end are formed with corresponding second protrusion and the second recess.

6. loudspeaker as described in claim 1, which is characterized in that the first noumenon and second ontology are rectangular ring Structure, the first noumenon and second ontology have two opposite the first turnings and two opposite the second turnings；

Two first leads are drawn from two first corner locations respectively, and two second leads are respectively from two Second corner location is drawn.

7. loudspeaker as claimed in claim 6, which is characterized in that two first leads and two second leads are equal According to clockwise direction fair line or according to counter clockwise direction fair line.

8. loudspeaker as claimed in claim 7, which is characterized in that the loudspeaker further includes frame, and the frame, which has, to be held Chamber is set, the Voice coil assemblies are placed in the accommodating cavity, and the frame is equipped with for being electrically connected with two first leads Two the first conductive parts, and two the second conductive parts for being electrically connected with two second leads.

9. loudspeaker as described in claim 1, which is characterized in that the vibrational system further includes being fixed on one with the vibrating diaphragm The centring disk risen；

The centring disk includes the interior fixed part connecting with the central part of the vibrating diaphragm, connect with the edge part of the vibrating diaphragm Outer fixing portion and the cantilever being connected between the interior fixed part and the outer fixing portion；

The interior fixed part is equipped with interior pad, and the outer fixing portion is equipped with outer pad, two first leads and two Second lead is electrically connected with the interior pad.

10. loudspeaker as claimed in claim 9, which is characterized in that interior pad there are four being set on the interior fixed part, it is described outer Fixed part, which is equipped with, corresponds four outer pads being electrically connected with four interior pads, described in two first leads and two Second lead is electrically connected with four interior pads respectively.

11. the loudspeaker as described in claims 1 to 10 any claim, which is characterized in that first voice coil and described Second voice coil is connected in series.