CN213126454U - Moving coil loudspeaker - Google Patents

Abstract

The utility model discloses a moving coil speaker, including magnetic component and sound membrane subassembly, magnetic component is equipped with the annular gap, and magnetic component is used for the cooperation to form magnetic field, and the sound membrane subassembly includes vibrating diaphragm and voice coil loudspeaker voice coil, and in the annular gap was stretched into to the one end of voice coil loudspeaker voice coil, the other end and the vibrating diaphragm contact setting of voice coil loudspeaker voice coil, the annular gap was worn to establish along the direction of keeping away from vibrating diaphragm to the introduction end line and/or the leading-out end line of voice coil loudspeaker voice coil. Compare in traditional mode that will introduce end line and leading-out end line and vibrating diaphragm bond, the lead-in end line has been reduced, the glue of leading-out end line and bonding usefulness is to vibrating diaphragm's vibration load, the vibration state that makes vibrating diaphragm's vibration more tend to the ideal, sound tone quality's discreteness is little, glue distributes unevenly on vibrating diaphragm and leads to vibrating diaphragm vibration unbalanced simultaneously can not appear, the condition of shaking, tone quality has high fidelity, high power, quick transient response, high frequency width response, more stable advantage, therefore above-mentioned movable coil speaker has better tone quality.

Description

Moving coil loudspeaker

Technical Field

The utility model relates to a speaker technical field especially relates to a moving coil speaker.

Background

With the progress of social development and the improvement of quality of life of people, the requirement of consumers on the tone quality is higher and higher, and compared with terminal speakers of a plurality of wearable devices, the requirements of miniaturization, low distortion, high sensitivity, wide frequency band, high tone quality and high efficiency are the directions of research of a plurality of manufacturers, and are also the bottlenecks to be broken through by the miniature speakers. The assembly process of the loudspeaker has a large influence on the sound quality, and the sound quality of the loudspeaker at the present stage is influenced due to the defect of the connection mode of the lead.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model discloses lie in overcoming prior art's defect, provide the better moving coil speaker of tone quality.

The technical scheme is as follows:

a moving coil speaker comprising:

the magnetic assembly is provided with an annular gap and is used for matching to form a magnetic field; and

the voice diaphragm assembly comprises a vibrating diaphragm and a voice coil, one end of the voice coil extends into the annular gap, the other end of the voice coil is in contact with the vibrating diaphragm, and the leading-in end line and/or the leading-out end line of the voice coil are/is far away from the vibrating diaphragm and penetrate through the annular gap.

In the moving coil loudspeaker, the magnetic assembly can be matched to form a magnetic field, the voice coil can be electrically connected with an external circuit by utilizing the leading-in end wire and the leading-out end wire, so that audio current passes through the voice coil, the voice coil can generate an induced magnetic field which changes along with the audio current, the induced magnetic field generated by the voice coil can interact with the magnetic field formed by the matching of the magnetic assembly, and the voice coil vibrates along the axial direction of the voice coil, so that the vibrating diaphragm is driven to vibrate and sound, because the leading-in end wire and/or the leading-out end wire penetrate through the annular gap along the direction far away from the vibrating diaphragm, the leading-in end wire and/or the leading-out end wire cannot be contacted with the vibrating diaphragm, compared with the traditional mode of bonding the leading-in end wire and the leading-out end wire with the vibrating diaphragm, the vibration load of the leading-in end wire, the leading-out end wire and glue for bonding, glue can not appear simultaneously and distribute the uneven circumstances that leads to vibrating diaphragm vibration unbalance, wave on the vibrating diaphragm, tone quality has high fidelity, high power, quick transient response, high frequency width response, more stable advantage, consequently above-mentioned movable coil speaker has better tone quality. In addition, at this time, the leading-in end line and the leading-out end line are wired by the inside of the moving coil loudspeaker, so that the exposed length of the leading-in end line and the leading-out end line can be reduced, the leading-in end line and the leading-out end line can be protected, and the overall reliability is improved.

In one embodiment, the magnetic assembly includes a magnet, a first support and a second support, the first support and the second support are made of magnetic materials, the second support is sleeved outside the first support, the annular gap is formed between the second support and the first support, and the second support and the first support are used for cooperating with the magnet to form the magnetic field.

In one embodiment, the first support comprises a guide pillar and a base which are connected, the magnet and the second support are sleeved outside the guide pillar, the magnet is erected on the base, a abdicating gap is arranged between the magnet and the base, the abdicating gap is communicated with the annular gap, and the leading-in end line and the leading-out end line sequentially penetrate through the annular gap and the abdicating gap.

In one embodiment, a position where the leading end line leaves the voice coil is a first leaving point, a position where the leading end line leaves the voice coil is a second leaving point, the first leaving point and the second leaving point are arranged on a side of the voice coil close to the abdicating gap, and an angle between the first leaving point and the second leaving point is a, and 0 ° < a <180 °.

In one embodiment, the base or the magnet is provided with a fixing portion, the leading-in end line and the leading-out end line are both fixed at the fixing portion, the fixing portion is located in the abdicating gap, the side surface of the magnet far away from the second support is a first surface, the surface of the magnet opposite to the guide post is a second surface, and the fixing portion is located at the position where the first surface is far away from the second surface.

In one embodiment, a linear distance between the first departure point and the fixed portion is L1, a line length of the leading end line between the first departure point and the fixed portion is L2 and is 0.2mm ≦ L2-L1 ≦ 0.8mm, and a line length of the leading end line between the second departure point and the fixed portion is L3 and is 0.2mm ≦ L3-L1 ≦ 0.8 mm.

In one embodiment, the first support is provided with a central hole penetrating through the guide post and the base, a tone quality adjustment sheet is arranged in the central hole, and the tone quality adjustment sheet is provided with a tone quality adjustment hole.

In one embodiment, a balance adjusting hole is formed in the base, the balance adjusting hole is communicated with the annular gap, and the leading-in end line and the leading-out end line penetrate through the abdicating gap from two sides of the balance adjusting hole.

In one embodiment, a notch is formed in the base, a step portion is arranged in the notch, the step portion and the magnet are arranged at intervals and matched to form the abdicating gap, and the balance adjusting hole is formed in the step portion.

In one embodiment, the second support is provided with an installation groove, the magnet and the first support are arranged in the installation groove, the annular gap is formed between the first support and the inner wall of the installation groove, the inner wall of the installation groove is provided with a wire routing hole, and the leading-in end wire and/or the leading-out end wire sequentially penetrate through the annular gap and the wire routing hole.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a cross-sectional view of a moving coil speaker according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a moving coil speaker according to another embodiment of the present invention;

FIG. 3 is a schematic view of the assembly of the first support and the voice coil of FIG. 1;

fig. 4 is a schematic structural diagram of a voice coil according to an embodiment of the present invention;

fig. 5 is a schematic view of the assembly of the magnet and the voice coil in fig. 1.

Description of reference numerals:

100. the magnetic assembly comprises a magnetic assembly, 101, an annular gap, 102, an abdicating gap, 110, a magnet, 111, a first surface, 112, a second surface, 120, a first support, 120a, a central hole, 121, a guide post, 122, a base, 122a, a balance adjusting hole, 122b, a notch, 122c, a step part, 123, a tone quality adjusting sheet, 123a, a tone quality adjusting hole, 130, a second support, 131, a wiring hole, 140, a fixing part, 200, a sound film assembly, 210, a vibrating diaphragm, 220, a voice coil, 221, a leading-in terminal wire, 222, a leading-out terminal wire, 223, a first departing point, 224, a second departing point, 225, a second reference surface, 300, a wiring board, 301, a process hole, 400, a limiting ring, 500 and a shell.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

As shown in fig. 1 to fig. 3, an embodiment discloses a moving coil speaker, which includes a magnetic assembly 100 and a voice diaphragm assembly 200, wherein the magnetic assembly 100 is provided with an annular gap 101, the magnetic assembly 100 is used for forming a magnetic field in a matching manner, the voice diaphragm assembly 200 includes a vibrating diaphragm 210 and a voice coil 220, one end of the voice coil 220 extends into the annular gap 101, the other end of the voice coil 220 is in contact with the vibrating diaphragm 210, and a leading-in terminal line 221 and/or a leading-out terminal line 222 of the voice coil 220 penetrate through the annular gap 101 along a direction away from the vibrating diaphragm 210.

In the moving coil speaker, the magnetic assembly 100 may cooperate to form a magnetic field, and the voice coil 220 may be electrically connected to an external circuit by using the leading-in terminal 221 and the leading-out terminal 222, so that an audio current passes through the voice coil 220, the voice coil 220 may generate an induced magnetic field varying with the audio current, the induced magnetic field generated by the voice coil 220 may interact with the magnetic field formed by the magnetic assembly 100, so that the voice coil 220 vibrates along the axial direction thereof, thereby driving the diaphragm 210 to vibrate and sound, because the leading-in terminal 221 and/or the leading-out terminal 222 penetrate the annular gap 101 along a direction away from the diaphragm 210, the leading-in terminal 221 and/or the leading-out terminal 222 may not contact the diaphragm 210, compared to a conventional manner of bonding the leading-in terminal 221 and the leading-out terminal 222 to the diaphragm 210, the vibration load of the leading-in terminal 221, the leading-out terminal 222 and the glue for bonding to the diaphragm 210 is reduced, make the vibration of vibrating diaphragm 210 more tend to the vibration state of ideal, sound tone quality's discreteness is little, glue uneven distribution can not appear simultaneously on vibrating diaphragm 210 leads to the vibrating diaphragm 210 vibration unbalance, the condition of rocking, tone quality has high-fidelity, high power, quick instantaneous response, high frequency width response, more stable advantage, consequently above-mentioned movable coil speaker has better tone quality. In addition, at this time, the leading-in end line 221 and the leading-out end line 222 are routed by the inside of the moving coil speaker, so that the exposed length of the leading-in end line 221 and the leading-out end line 222 can be reduced, the leading-in end line 221 and the leading-out end line 222 can be protected, and the overall reliability can be improved.

Alternatively, as shown in fig. 3, the voice coil 220 is a cylindrical structure formed by winding a metal wire, and the winding manner of the metal wire enables the leading-in terminal wire 221 and the leading-out terminal wire 222 to simultaneously leave the voice coil 220 from the same position in the axial direction of the voice coil 220, for example, the leading-in terminal wire 221 and the leading-out terminal wire 222 simultaneously leave from the upper end of the voice coil 220 and enter the annular gap 101; or the leading-in terminal wire 221 and the leading-out terminal wire 222 leave the voice coil 220 from different positions in the axial direction of the voice coil 220 and enter the annular gap 101, for example, one of the leading-in terminal wire 221 and the leading-out terminal wire 222 leaves the voice coil 220 from the upper end position of the voice coil 220, and the other leaves the voice coil 220 from the lower end position of the voice coil 220, wherein the upper end and the lower end of the voice coil 220 are both ends of the voice coil 220 in the axial direction thereof.

Specifically, the voice coil 220 and the diaphragm 210 are bonded together by an adhesive or the like, and the lead-in wire 221 and the lead-out wire 222 are separated from the voice coil 220 from the vicinity of the bonding portion. In this case, the leading-in wire 221 and the leading-out wire 222 can be restricted in a direction away from the voice coil 220, and the leading-in wire 221 and the leading-out wire 222 can be routed in the annular gap 101 in an expected manner, so that the performance of the moving coil speaker can be improved.

Alternatively, the leading-in terminal line 221 and the leading-out terminal line 222 enter the annular gap 101 at the same time and do not contact the diaphragm 210, so that the load on the diaphragm 210 is minimized, but when the leading-in terminal line 221 or the leading-out terminal line 222 passes through the annular gap 101 and does not contact the diaphragm 210, the load on the diaphragm 210 can be reduced, and a certain effect of improving the sound quality can be achieved.

In one embodiment, as shown in fig. 1, the magnetic assembly 100 includes a magnet 110, a first support 120 and a second support 130, the first support 120 and the second support 130 are made of magnetic materials, the second support 130 is sleeved outside the first support 120, an annular gap 101 is formed between the second support 130 and the first support 120, and the second support 130 and the first support 120 are used for cooperating with the magnet 110 to form a magnetic field. Because the first support 120 and the second support 130 are made of magnetic materials, the first support 120 and the second support 130 can be magnetized under the action of the magnetic field of the magnet 110 to form a corresponding magnetized magnetic field, and the magnetized magnetic field is matched with the magnetic field of the magnet 110, so that the first support 120, the second support 130 and the magnet 110 are matched to form a magnetic field, the magnetic lines of force of the magnetic field at the moment are regular and concentrated, the magnetic lines of force cannot be dispersed, the magnetic lines of force can better interact with the voice coil 220, and the performance of the loudspeaker is improved.

In other embodiments, the magnetic assembly 100 includes a magnetic conductive seat and a magnet 110, the magnet 110 is sleeved outside the magnetic conductive seat and spaced from the magnetic conductive seat, and the magnet 110 and the magnetic conductive seat cooperate to form the annular gap 101, and also cooperate with the sound diaphragm assembly 200 to generate sound.

In one embodiment, as shown in fig. 1 and 3, the first support 120 includes a guide post 121 and a base 122 connected to each other, the magnet 110 and the second support 130 are both sleeved outside the guide post 121, the magnet 110 is erected on the base 122, an abdicating gap 102 is formed between the magnet 110 and the base 122, the abdicating gap 102 is communicated with the annular gap 101, and the leading-in terminal line 221 and the leading-out terminal line 222 sequentially penetrate through the annular gap 101 and the abdicating gap 102. In the above structure, the moving coil speaker may cooperate to form an external magnetic speaker, the magnet 110 is set on the base 122, the magnet 110 and the second support 130 are both sleeved outside the guide post 121, so that the overall structure is more stable, and a more concentrated magnetic field can be formed, because the leading-in end line 221 and the leading-out end line 222 both pass through the annular gap 101 and are led out by the abdicating gap 102, it is ensured that the leading-in end line 221 and the leading-out end line 222 are not connected with the vibrating diaphragm 210 in the process of being electrically connected with an external circuit, the load of the vibrating diaphragm 210 is reduced, the mass distribution of the vibrating diaphragm 210 is more uniform, the response is faster in the vibrating process, the ideal vibrating state is more approached, the performance of the moving coil speaker is improved, and the leading-in end line 221 and the leading-out end line 222 are not pinched by the magnet 110 and the first support 120, so that the leading-in end line 221 and. In addition, at this time, since the leading-in terminal 221 and the leading-out terminal 222 pass through between the magnet 110 and the first holder 120, and the leading-in terminal 221 and the leading-out terminal 222 do not directly pass through the magnet 110 or the first holder 120, the mutual influence between the leading-in terminal 221 and the leading-out terminal 222, the magnet 110, and the first holder 120 is small, and the interference can be reduced, so that the moving coil speaker has a high-fidelity effect.

Alternatively, the number of the yielding gaps 102 may be one or two, and when the yielding gap 102 is one, the leading-in end line 221 and the leading-out end line 222 are led out from the same yielding gap 102; when there are two abdicating gaps 102, the leading-in end line 221 and the leading-out end line 222 are respectively led out from the two abdicating gaps 102.

Specifically, the number of the abdicating gap 102 is one, and at this time, since the first support 120 and/or the magnet 110 need to be processed to form a structure having a recess so as to form the abdicating gap 102, when the abdicating gap 102 is one, the processing of the first support 120 and/or the magnet 110 is simpler, and the overall cost of the moving coil speaker can be effectively reduced.

In other embodiments, the base 122 or the magnet 110 is provided with a through hole, the through hole is communicated with the annular gap 101, the leading-in terminal 221 and the leading-out terminal 222 are both provided with the through hole, and the leading-in terminal 221 and the leading-out terminal 222 do not affect the vibration effect of the vibrating diaphragm 210.

In one embodiment, as shown in fig. 3 and 4, the leading end line 221 is separated from the voice coil 220 by a first separation point 223, the leading end line 222 is separated from the voice coil 220 by a second separation point 224, the first separation point 223 and the second separation point 224 are disposed on the side of the voice coil 220 close to the abdicating gap 102, and an angle between the first separation point 223 and the second separation point 224 is a, 0 ° < a <180 °. The first departure point 223 and the second departure point 224 are disposed on one side of the voice coil 220 close to the abdicating gap 102, and the angle between the first departure point 223 and the second departure point 224 is smaller than 180 degrees and larger than 0 degree, so that the leading-in end line 221 and the leading-out end line 222 are prevented from contacting with the voice coil 220 again after leaving the voice coil 220, the displacement of the voice coil 220 is prevented from being influenced, and meanwhile, the leading-in end line 221 and the leading-out end line 222 are shorter in length, and the burden of the voice coil 220 can also be reduced.

Specifically, as shown in fig. 3 and 4, a first reference plane may be formed by any one point in the abdicating gap 102 and the central axis of the voice coil 220, the other plane passing through the central axis of the voice coil 220 and perpendicular to the first reference plane is a second reference plane 225, and the first departing point 223 and the second departing point 224 are both disposed on one side of the second reference plane 225 close to the abdicating gap 102.

Optionally, the positions of the first and second exit points 223, 224 may be adjusted; or the shapes of the leading-in end line 221 and the leading-out end line 222 in the annular gap 101, the sound quality is adjusted.

In one embodiment, as shown in fig. 5, the fixing portion 140 is disposed on the base 122 or the magnet 110, the leading-in terminal 221 and the leading-out terminal 222 are both fixed at the fixing portion 140, and the fixing portion 140 is located in the clearance 102. The fixing portion 140 can limit the leading-in end line 221 and the leading-out end line 222, and can arrange the leading-in end line 221 and the leading-out end line 222, so that the routing of the leading-in end line 221 and the leading-out end line 222 can be set according to a predetermined mode, and the leading-in end line 221 and the leading-out end line 222 are prevented from influencing the normal work of other components in the process of passing through the annular gap 101 and the abdicating gap 102.

Alternatively, the fixing portion 140 is provided on the magnet 110, and since the diaphragm 210, the voice coil 220, the second support 130 and the magnet 110 are pre-coupled together during assembly, the fixing portion 140 is provided on the magnet 110 to facilitate the overall assembly.

Optionally, the fixing portion 140 is formed by dropping glue on the magnet 110 to form a glue spot, and the leading-in end line 221 and the leading-out end line 222 penetrate through the glue spot and are fixed by the glue spot; or the fixing part 140 is a plastic piece with a channel, and the leading-in end line 221 and the leading-out end line 222 penetrate through the channel and are fixed by the plastic piece.

In one embodiment, as shown in fig. 5, the side of the magnet 110 away from the second support 130 is a first surface 111, the surface of the magnet 110 opposite to the guide post 121 is a second surface 112, and the fixing portion 140 is disposed at a position where the first surface 111 is away from the second surface 112. In the above structure, when the leading-in end line 221 and the leading-out end line 222 pass through the annular gap 101 and enter the abdicating gap 102, the leading-in end line 221 and the leading-out end line 222 are firstly limited by the fixing part 140, and the position of the fixing part 140 is close to the position where the leading-in end line 221 and the leading-out end line 222 just enter the abdicating gap 102, so that the leading-in end line 221 and the leading-out end line 222 do not swing randomly in the annular gap 101 and the abdicating gap 102, and the leading-in end line 221 and the leading-out end line 222.

In one embodiment, the linear distance between the first departure point 223 and the fixed portion 140 is L1, the line length of the leading end 221 between the first departure point 223 and the fixed portion 140 is L2, 0.2mm ≦ L2-L1 ≦ 0.8mm, and the line length of the leading end 222 between the second departure point 224 and the fixed portion 140 is L3, 0.2mm ≦ L3-L1 ≦ 0.8 mm. At this time, the leading-in end wire 221 and the leading-out end wire 222 are in a state of being bent and loosened between the first separation point 223 and the fixing part 140, and the leading-in end wire 221 and the leading-out end wire 222 do not exert a force on the first separation point 223 and the second separation point 224 of the voice coil 220 to cause a load and an abnormal operation of the voice coil 220, so that the overall performance of the moving coil speaker can be improved, and when the leading-in end wire 221 and the leading-out end wire 222 are within the above length range, the load of the voice coil 220 can be reduced, and the length is not too long, and contact or accidental collision with other components can be prevented.

In one embodiment, as shown in fig. 1, a central hole 120a is formed in the first support 120 and penetrates through the guide post 121 and the base 122, a sound quality adjustment sheet 123 is disposed in the central hole 120a, and a sound quality adjustment hole 123a is formed in the sound quality adjustment sheet 123. The tone quality can be adjusted by using the tone quality adjusting hole 123a, so that the performance is better.

Optionally, the thickness of the sound quality adjustment sheet 123 is 0.03mm to 0.5mm, which can reduce the influence on the sound quality and adjust the sound quality by matching with the sound quality adjustment hole 123 a.

Alternatively, the number of the tone quality adjustment holes 123a is one or more.

Specifically, at least one of the tone quality adjustment holes 123a is located at the center of the tone quality adjustment sheet 123.

Optionally, the cross-sectional area of the sound quality adjusting hole 123a is 0.008mm 2-0.283 mm 2. That is, no matter how many sound quality adjusting holes 123a are opened on the sound quality adjusting sheet 123, the total opening area on the sound quality adjusting sheet 123 is 0.008mm 2-0.283 mm 2.

In one embodiment, as shown in fig. 1 and 3, the base 122 is provided with a balance adjusting hole 122a, the balance adjusting hole 122a is communicated with the annular gap 101, and the leading-in end line 221 and the leading-out end line 222 penetrate through the yielding gap 102 from two sides of the balance adjusting hole 122 a. The balance adjustment hole 122a in the above configuration can balance the influence of the lead-in wire 221 and the lead-out wire 222 on the vibration of the voice coil 220, and can cancel the minute vibration of the lead-in wire 221 and the lead-out wire 222 in the annular gap 101. Meanwhile, when the sound quality adjustment is insufficient by using the sound quality adjustment hole 123a, the balance adjustment hole 122a for vibration is provided to prevent the divided vibration of the center spherical top portion and the annular portion of the vibration diaphragm 210.

Specifically, as shown in fig. 3, the leading-in end line 221 and the leading-out end line 222 are centrosymmetric with the balance adjustment hole 122a as the origin, and at this time, the influence of the leading-in end line 221 and the leading-out end line 222 on the voice coil 220 is more regular, and can be offset conveniently through the balance adjustment hole 122 a. Since the leading end wire 221 is fixed at the first separating point 223 and the fixing portion 140, respectively, and the leading end wire 222 is fixed at the second separating point 224 and the fixing portion 140, respectively, the leading end wire 221 and the leading end wire 222 are also fixed in the fitting clearance, for example, arranged in an arc.

In one embodiment, as shown in fig. 3, a notch 122b is formed on the base 122, a step portion 122c is formed in the notch 122b, the step portion 122c and the magnet 110 are arranged at an interval to form the abdicating gap 102, and the balance adjusting hole 122a is formed on the step portion 122 c. The step portion 122c can cooperate with the magnet 110 to guide the routing of the leading-in end line 221 and the leading-out end line 222, so that the leading-in end line 221 and the leading-out end line 222 are not damaged by being pinched, and meanwhile, the balance adjusting hole 122a is formed in the step portion 122c, so that the step portion can better cooperate with the leading-in end line 221 and the leading-out end line 222, the burden of the voice coil 220 is reduced, and the influence caused by the micro-vibration of the leading-in end line 221 and the leading-out end line 222 is counteracted.

Specifically, the base 122 and the step portion 122c are both fan-shaped, and the base 122 and the step portion 122c are coaxially disposed, wherein the thickness of the step portion 122c is smaller than that of the base 122, and the outer diameter of the step portion 122c is smaller than that of the base 122.

Optionally, as shown in fig. 1, the moving coil speaker further includes a wiring board 300, the wiring board 300 is disposed on a side of the base 122 away from the guide post 121, the leading-in terminal wire 221 and the leading-out terminal wire 222 are used for electrically connecting with the wiring board 300, a process hole 301 corresponding to the balance adjustment hole 122a is disposed on the wiring board 300, and the process hole 301 is communicated with the balance adjustment hole 122 a. The wiring board 300 is arranged reasonably, the compactness of the whole structure can be improved, the occupied space is reduced, and meanwhile, the offset effect of the balance adjusting hole 122a on the vibration of the leading-in end wire 221 and the leading-out end wire 222 cannot be influenced by the process hole 301 on the wiring board 300.

Specifically, as shown in fig. 1, the opening of the central hole 120a at one end of the base 122 is a trumpet-shaped opening, and the sound quality adjustment sheet 123 is disposed at the trumpet-shaped opening and is limited by the wiring board 300. The wiring board 300 is provided with a through hole corresponding to the central hole 120a, and the through hole is communicated with the central hole 120a, so that the air cannot be blocked, and the tone quality adjustment sheet 123 in the central hole 120 can play a role in adjusting tone quality.

Optionally, the relief gap 102 may be filled with an adhesive or the like for sealing the annular gap 101, improving the reliability of the overall structure.

In another embodiment, as shown in fig. 2, a mounting groove is formed on the second support 130, the magnet 110 and the first support 120 are disposed in the mounting groove, an annular gap 101 is formed between the first support 120 and an inner wall of the mounting groove, a wire hole 131 is formed on the inner wall of the mounting groove, and the leading-in end wire 221 and/or the leading-out end wire 222 sequentially penetrate through the annular gap 101 and the wire hole 131. At this moment, the moving coil loudspeaker can be matched to form an internal magnetic loudspeaker, because the leading-in end line 221 and/or the leading-out end line 222 pass through the annular gap 101 and penetrate out from the wiring hole 131 on the inner wall of the mounting groove, the leading-in end line 221 and/or the leading-out end line 222 cannot be in contact with the vibrating diaphragm 210 at this moment, no burden is caused to the vibration of the vibrating diaphragm 210, glue does not need to be arranged on the vibrating diaphragm 210 for connecting the leading-in end line 221 and/or the leading-out end line 222, the mass distribution on the vibrating diaphragm 210 is more balanced, and the improvement of the concentration degree of the emitted sound is facilitated.

Optionally, as shown in fig. 1 and fig. 2, the diaphragm assembly 200 further includes a limiting ring 400, the limiting ring 400 is sleeved outside the voice coil 220, the limiting ring 400 is disposed at an interval with the voice coil 220, one side surface of the limiting ring 400 is connected to an outer edge of the diaphragm 210, the other side surface of the limiting ring 400 is connected to the second support 130, and the middle portion of the diaphragm 210 is connected to the voice coil 220. The limiting ring 400 is used for positioning the diaphragm 210, so that the diaphragm 210 and the voice coil 220 can be conveniently installed and aligned, and a gap is ensured between the diaphragm 210 and an outer support, so that the diaphragm 210 cannot be contacted with the outer support in the vibration process.

Alternatively, the stop collar 400 may be circular, square, or other shape.

Optionally, as shown in fig. 1, the moving coil speaker further includes a housing 500, and the housing 500 is disposed outside the diaphragm 210. The housing 500 may support and protect the internal structure of the moving coil speaker.

Specifically, the voice coil 220 has an inner diameter ranging from 1.5mm to 7 mm. The length of the lead-in end line 221 from the first exit point 223 to the fixing part 140 is 2mm to 4 mm. The length of the lead-out end line 222 from the second exit point 224 to the fixing part 140 is 2mm to 4 mm. The gap between the step portion 122c and the magnet 110 is 0.05mm to 0.3 mm. The aperture of the balance adjusting hole 122a is 0.1 mm-0.5 mm. Under the above circumstances, the whole size of the moving coil speaker is small, the leading-in end line 221 and the leading-out end line 222 of the voice coil 220 are not in contact with the diaphragm 210, and the leading-in end line 221 and the leading-out end line 222 are in a bending state in the process that the leading-in end line 221 and the leading-out end line 222 penetrate through the annular gap 101 and the abdicating gap 102, so that no burden is caused to the vibration of the voice coil 220, the leading-in end line 221 and the leading-out end line 222 are not damaged by being pinched, the balance adjusting hole 122a can counteract the vibration of the leading-in end line 221 and the leading-out end line 222 in the annular gap 101, the moving coil speaker has a simple structure, is easy to assemble, has small discreteness of tone quality, is stable in quality, prevents the shaking phenomenon generated when the voice coil 220 vibrates, and has the characteristics of high fidelity, high power, fast instantaneous response, high-frequency wide response, completely cancels the load, better performance and sound quality can be obtained. The above values can be used for moving coil loudspeakers, and can be proportionally adjusted according to the above data so as to be used for moving coil loudspeakers with other sizes.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. A moving coil speaker, comprising:

the magnetic assembly is provided with an annular gap and is used for matching to form a magnetic field; and

the voice diaphragm assembly comprises a vibrating diaphragm and a voice coil, one end of the voice coil extends into the annular gap, the other end of the voice coil is in contact with the vibrating diaphragm, and the leading-in end line and the leading-out end line of the voice coil are far away from the annular gap in the direction of the vibrating diaphragm.

2. The moving coil loudspeaker according to claim 1, wherein the magnetic assembly comprises a magnet, a first support and a second support, the first support and the second support are made of magnetic materials, the second support is sleeved outside the first support, the annular gap is formed between the second support and the first support, and the second support and the first support are used for cooperating with the magnet to form the magnetic field.

3. The moving coil loudspeaker according to claim 2, wherein the first support comprises a guide post and a base which are connected, the magnet and the second support are both sleeved outside the guide post, the magnet is erected on the base, a abdicating gap is arranged between the magnet and the base, the abdicating gap is communicated with the annular gap, and the leading-in end line and the leading-out end line sequentially penetrate through the annular gap and the abdicating gap.

4. The moving coil speaker according to claim 3, wherein a position where the lead-in wire is separated from the voice coil is a first separation point, a position where the lead-out wire is separated from the voice coil is a second separation point, the first separation point and the second separation point are provided on a side of the voice coil near the abdicating gap, and an angle between the first separation point and the second separation point is a, 0 ° < a <180 °.

5. The moving-coil loudspeaker according to claim 4, wherein the base or the magnet is provided with a fixing portion, the leading-in wire and the leading-out wire are both fixed at the fixing portion, the fixing portion is located in the abdicating gap, a side surface of the magnet away from the second support is a first surface, a surface of the magnet opposite to the guide post is a second surface, and the fixing portion is located at a position where the first surface is away from the second surface.

6. The moving-coil speaker as claimed in claim 5, wherein a linear distance between the first departure point and the fixed portion is L1, a linear length of the leading end line between the first departure point and the fixed portion is L2, 0.2mm ≦ L2-L1 ≦ 0.8mm, and a linear length of the leading end line between the second departure point and the fixed portion is L3, 0.2mm ≦ L3-L1 ≦ 0.8 mm.

7. The moving coil speaker as claimed in claim 3, wherein the first support has a central hole passing through the guide post and the base, and a tuning tab is disposed in the central hole and has a tuning hole.

8. The moving coil loudspeaker according to claim 3 wherein the base has a balance adjustment hole, the balance adjustment hole is communicated with the annular gap, and the leading-in end line and the leading-out end line are inserted into the abdicating gap from both sides of the balance adjustment hole.

9. The moving coil loudspeaker according to claim 8, wherein the base has a notch, a step is provided in the notch, the step cooperates with the magnet at an interval to form the relief gap, and the balance adjusting hole is provided on the step.

10. The moving coil speaker according to claim 2, wherein a mounting groove is provided on the second support, the magnet and the first support are provided in the mounting groove, the annular gap is formed between the first support and an inner wall of the mounting groove, a wire-passing hole is provided on the inner wall of the mounting groove, and the lead-in end wire and/or the lead-out end wire sequentially passes through the annular gap and the wire-passing hole.

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