CN205051870U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
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- CN205051870U CN205051870U CN201520888441.XU CN201520888441U CN205051870U CN 205051870 U CN205051870 U CN 205051870U CN 201520888441 U CN201520888441 U CN 201520888441U CN 205051870 U CN205051870 U CN 205051870U
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- voice coil
- magnet
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- frame
- loudspeaker
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Abstract
The application discloses loudspeaker, including basin frame, magnet, hua si and voice coil loudspeaker voice coil, magnet lies in the basin frame, still including set up in the blind end of basin frame and with the terminal surface fixed connection's of magnet adjusting part, the axis that the basin frame can be followed to the adjusting part moves moving magnet, the terminal surface of china department is fixed with another terminal surface of magnet, when the interior end face contaction of the terminal surface of magnet and basin frame, the plane at the terminal surface place of voice coil loudspeaker voice coil is located between the plane at two terminal surfaces places of china department, when magnet moved to the extreme position of the interior terminal surface of keeping away from basin frame, the plane at the terminal surface place of voice coil loudspeaker voice coil lay in between the plane at two terminal surfaces places of magnet. Through the position of the relative voice coil loudspeaker voice coil of adjusting part adjustable china department, the function that realizes adjusting loudspeaker distortion and sensitivity.
Description
Technical field
The utility model relates to electronic technology field, particularly a kind of loudspeaker.
Background technology
Loudspeaker are a kind of electro-acoustic element of voice signal by transform electrical signals, existing a kind of loudspeaker generally include frame, magnet, washer, voice coil loudspeaker voice coil and vibrating diaphragm etc., magnet and washer are all fixed in frame, vibrating diaphragm is covered in the openend of frame, voice coil loudspeaker voice coil is positioned at frame and is connected with vibrating diaphragm, washer and magnet laminating are fixed, for the magnetic field line of homogenizing magnet, voice coil loudspeaker voice coil is the hollow cyclic structure of coiling, cover in the periphery of washer, after voice coil loudspeaker voice coil passes into electric current, can cutting magnetic induction line, produce the variation of displacement, drive diaphragm oscillations, sound, thus be voice signal by transform electrical signals.
But when voice coil designs, if the axial length of voice coil loudspeaker voice coil is shorter, namely the axial length of voice coil loudspeaker voice coil is than the axial length (i.e. the thickness of washer) hour of air gap, voice coil vibrations is positioned at by the adjusted uniform magnetic field region of washer, and voice coil loudspeaker voice coil stress balance, polarization can not occur, effectively can avoid nonlinear distortion, but the utilance in magnetic field is lower, the magnetic field force suffered by voice coil loudspeaker voice coil is less, causes sensitivity lower; And when the axial length of voice coil loudspeaker voice coil is long, namely the axial length of voice coil loudspeaker voice coil is larger than the thickness of washer, part voice coil loudspeaker voice coil is beyond the thickness border of washer, the part that then voice coil loudspeaker voice coil exceeds washer thickness border has been jumped out by the adjusted uniform magnetic field region of washer, although magnetic field utilance improves, sensitivity strengthens, but, magnetic force suffered by voice coil loudspeaker voice coil is uneven, and cause voice coil loudspeaker voice coil polarization serious, nonlinear distortion increases.Generally, be difficult to during voice coil designs to ensure sensitivity relatively high while distortion lower, and distortion and sensitivity are the technology that user compares concern, and a loudspeaker cannot meet the different demands of different user to distortion and sensitivity simultaneously.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of loudspeaker, to meet the different demands of user to loudspeaker distortion and sensitivity.
For achieving the above object, the utility model provides following technical scheme:
A kind of loudspeaker, comprise frame, magnet, washer and voice coil loudspeaker voice coil, described magnet is arranged in described frame, also comprise the blind end being arranged at described frame and the adjusting part be fixedly connected with the end face of the blind end of the close described frame of described magnet, described adjusting part can move axially described magnet along described frame, and the end face of the blind end away from described frame of described magnet and the end face of described washer are fixed; When the end face of the blind end of the close described frame of described magnet contacts with the inner face of the blind end of described frame, the plane at the free end end face place of described voice coil loudspeaker voice coil is between the plane at two end face places of described washer; When described magnet moves to the extreme position away from the blind end inner face of described frame, the plane at the free end end face place of described voice coil loudspeaker voice coil is between the plane at two end face places of described magnet.
Preferably, in above-mentioned loudspeaker, described adjusting part is magnet adjusting knob, and the blind end of described frame offers the screwed hole be threaded with described magnet adjusting knob, and one end and the described magnet of described magnet adjusting knob are fixed.
Preferably, in above-mentioned loudspeaker, the material of described magnet adjusting knob is magnetic conductive metal.
Preferably, in above-mentioned loudspeaker, the axis of described magnet adjusting knob and the dead in line of described frame.
Preferably, in above-mentioned loudspeaker, the end face of the blind end of the end face of described magnet adjusting knob and the close described frame of described magnet is adhesively fixed.
Preferably, in above-mentioned loudspeaker, the end face of the blind end away from described frame of described magnet and the end face of described washer are adhesively fixed.
Compared with prior art, the beneficial effects of the utility model are:
In the loudspeaker that the utility model provides, the adjusting part being fixed for the axis moving magnet along frame with the end face of magnet is provided with at the blind end of frame, because magnet and washer are fixed, therefore, by the adjustment of adjusting part, magnet is moved along the axis of frame, and then regulate washer at the axis direction of frame relative to the position of voice coil loudspeaker voice coil, when the end face of magnet contacts with the inner face of frame, the plane at the free end end face place of voice coil loudspeaker voice coil is between two planes at two end face places of washer; When magnet moves to the extreme position away from the inner face of frame, the plane at the free end end face place of voice coil loudspeaker voice coil is between the plane at two end face places of magnet.This is two accommodation limit positions of adjusting part.When adjusting part makes magnet move near the inner face of frame, the free end end face of voice coil loudspeaker voice coil does not exceed the lower surface of washer, and voice coil vibrations is in field homogeneity district, effectively can avoid nonlinear distortion, and sensitivity is relatively low; When adjusting part makes magnet move away from the inner face of frame, the end face of voice coil loudspeaker voice coil exceeds the lower surface of washer, and voice coil vibrations is beyond field homogeneity district, and nonlinear distortion increases, but sensitivity is relatively high.Visible, in a loudspeaker, user according to the demand of oneself, by regulating and controlling assembly, can select the lower distortion of preferential guarantee or preferentially ensures higher sensitivity.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of a kind of loudspeaker that Fig. 1 provides for the utility model embodiment;
The decomposition texture schematic diagram of a kind of loudspeaker that Fig. 2 provides for the utility model embodiment;
Fig. 3 is generalized section when a kind of loudspeaker that the utility model embodiment provides are in low distortion state;
Fig. 4 is generalized section when a kind of loudspeaker that the utility model embodiment provides are in high distortion status.
In Figs. 1-4,1 be frame, 101 be screwed hole, 2 be adjusting part, 3 be magnet, 4 be washer, 5 be voice coil loudspeaker voice coil, 6 be vibrating diaphragm, 7 for pcb board.
Embodiment
Core of the present utility model there is provided a kind of loudspeaker, the relative voice coil loudspeaker voice coil of washer can be regulated in the position of axis direction by adjusting part, reaches the object regulating loudspeaker distortion and sensitivity.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1-Fig. 4, the utility model embodiment provides a kind of loudspeaker, comprise frame 1, magnet 3, washer 4, voice coil loudspeaker voice coil 5, vibrating diaphragm 6, pcb board 7 and adjusting part 2, be described with the orientation in Fig. 3, the lower surface of magnet is the end face of the blind end near frame, the upper surface of magnet is the end face away from frame blind end, the lower surface of washer is the end face of the blind end near frame, wherein, vibrating diaphragm 6 is covered in the openend of frame 1, magnet 3, washer 4 and voice coil loudspeaker voice coil 5 are all positioned at frame 1, one end of voice coil loudspeaker voice coil 5 is connected with vibrating diaphragm 6, and voice coil loudspeaker voice coil 5 covers in the periphery of washer 4, pcb board 7 is fixed in frame 1, and be electrically connected with voice coil loudspeaker voice coil 5, adjusting part 2 is arranged at the blind end of frame 1, and adjusting part 2 is fixed with the lower surface of magnet 3, for the shape of adjusting part 2 for column structure is described, the upper end of adjusting part 2 and the lower surface of magnet are fixed, for moving axially magnet 3 along frame 1, the lower surface of washer 4 and the upper surface of magnet 3 are fixed, when the lower surface of magnet 3 contacts with the inner face of the blind end of frame 1, magnet 3 is in the first extreme position, and the plane at the free end end face place of voice coil loudspeaker voice coil 5 is between two planes at two end face places of washer 4, when magnet 3 moves to the extreme position away from the blind end inner face of frame 1, magnet 3 is in the second extreme position, and the plane at the free end end face place of voice coil loudspeaker voice coil 5 is between two planes at two end face places of magnet 3.
The operation principle of above-mentioned loudspeaker with the course of work is: adjusting part 2 can make magnet 3 move along the axial of frame 1 relative to frame 1, because washer 4 and magnet 3 are fixed, therefore, washer 4 axially moving relative to frame 1 equally along frame 1, and voice coil loudspeaker voice coil 5 is fixed on vibrating diaphragm 6, position immobilizes, therefore, washer 4 moves relative to the axis of voice coil loudspeaker voice coil 5 along frame 1, washer 4 relatively voice coil loudspeaker voice coil 5 has two extreme positions, extreme position is position as shown in Figure 3, for convenience of describing, be described with the orientation in Fig. 3, namely the plane at the end face place of the free end (lower end) of voice coil loudspeaker voice coil 5 is between two planes at two end face places of washer 4, the state that this extreme position is corresponding is that voice coil loudspeaker voice coil 5 vibration is positioned at by the adjusted uniform magnetic field region of washer 4, voice coil loudspeaker voice coil 5 vibrates steadily, nonlinear distortion is little, but magnetic field utilance is lower, sensitivity is lower, another extreme position as shown in Figure 4, namely the plane at the lower end surface place of voice coil loudspeaker voice coil 5 is between two planes at two end face places of magnet 3, the state that this extreme position is corresponding is the lower surface of lower surface beyond washer 4 of voice coil loudspeaker voice coil 5, voice coil loudspeaker voice coil 5 vibrates beyond by the adjusted uniform magnetic field region of washer 4, voice coil loudspeaker voice coil 5 discontinuity, polarization is comparatively large, and nonlinear distortion is larger, but magnetic field utilance is higher, loudspeaker sensitivity is higher.Therefore, when adjusting part 2 regulating magnet 3 moves to the blind end side near frame 1, namely when shown in Fig. 3, position is moved, the distortion of loudspeaker diminishes, sensitivity step-down; When adjusting part 2 regulating magnet 3 moves to the blind end side away from frame 1, namely when shown in Fig. 4, position is moved, the distortion of loudspeaker becomes large, and sensitivity improves.Visible, in a loudspeaker, user according to the demand of oneself, by the adjustment of adjusting part 2, can select the lower distortion of preferential guarantee or selects preferentially to ensure higher sensitivity.
As Figure 1-Figure 4, present embodiments provide a kind of concrete adjusting part 2, adjusting part 2 is magnet adjusting knob, magnet adjusting knob is cylindrical structural, its outer ring is provided with the external screw thread of certain altitude, the blind end of frame 1 offers the screwed hole 101 be threaded with magnet adjusting knob, and one end and the magnet 3 of magnet adjusting knob are fixed.During adjustment, rotary magnet adjusting knob, makes its precession of relative frame 1 or back-out, and then band moving magnet 3 and washer 4 move along the axis of frame 1, reaches the object regulating washer 4 and the relative position of voice coil loudspeaker voice coil 5.
As optimization, the material of the magnet adjusting knob in the present embodiment is magnetic conductive metal, magnetic conductive metal can be one in iron, cobalt, nickel or its combine arbitrarily.
In order to protect the alignment that magnet 3 regulates, ensureing washer 4 and the alignment of voice coil loudspeaker voice coil 5, making voice coil loudspeaker voice coil stress balance, the axis of magnet adjusting knob in the present embodiment and the dead in line of frame.Certainly, both axis also can not overlap.
In the present embodiment, the end face of magnet adjusting knob and the lower surface of magnet 3 are adhesively fixed, convenient fixing and dismounting.Certainly, other connectors also can be adopted to complete connection.
In like manner, the upper surface of magnet 3 and the lower surface of washer 4 are adhesively fixed, convenient fixing and dismounting.Other connectors can certainly be adopted to connect.
In the present embodiment, adjusting part 2 is except can adopting magnet adjusting knob, the adjusting rod be slidably connected with frame 1 can also be adopted, namely adjusting rod and frame 1 are provided with chute and slide rail that the axis along frame 1 is slidably matched mutually, one end of adjusting rod is fixedly connected with magnet 3, when being adjusted to a certain position, by trip bolt, adjusting rod location is fixed in frame 1, the adjustment of magnet height can be realized equally, just do not have the structure of magnet adjusting knob simple, easy to operate.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. loudspeaker, comprise frame (1), magnet (3), washer (4) and voice coil loudspeaker voice coil (5), described magnet (3) is arranged in described frame (1), it is characterized in that, also comprise the blind end being arranged at described frame (1) and the adjusting part (2) be fixedly connected with the end face of the blind end of the close described frame (1) of described magnet (3), described adjusting part (2) can move axially described magnet (3) along described frame (1), the end face of the blind end away from described frame (1) of described magnet (3) and the end face of described washer (4) are fixed, when the end face of the blind end of the close described frame (1) of described magnet (3) contacts with the inner face of the blind end of described frame (1), the plane at the free end end face place of described voice coil loudspeaker voice coil (5) is positioned between the plane at two end face places of described washer (4), when described magnet moves to the extreme position away from the blind end inner face of described frame (1), the plane at the free end end face place of described voice coil loudspeaker voice coil (5) is positioned between the plane at two end face places of described magnet (3).
2. loudspeaker according to claim 1, it is characterized in that, described adjusting part (2) is magnet adjusting knob, the blind end of described frame (1) offers the screwed hole (101) be connected with the external screw thread of described magnet adjusting knob, and one end of described magnet adjusting knob and described magnet (3) are fixed.
3. loudspeaker according to claim 2, is characterized in that, the material of described magnet adjusting knob is magnetic conductive metal.
4. loudspeaker according to claim 2, is characterized in that, the axis of described magnet adjusting knob and the dead in line of described frame (1).
5. loudspeaker according to claim 2, is characterized in that, the end face of the blind end of the end face of described magnet adjusting knob and the close described frame (1) of described magnet (3) bonds fixing.
6. loudspeaker according to claim 1, is characterized in that, the end face of the blind end away from described frame (1) of described magnet (3) and the end face of described washer (4) bond fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888441.XU CN205051870U (en) | 2015-11-09 | 2015-11-09 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888441.XU CN205051870U (en) | 2015-11-09 | 2015-11-09 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205051870U true CN205051870U (en) | 2016-02-24 |
Family
ID=55345408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520888441.XU Active CN205051870U (en) | 2015-11-09 | 2015-11-09 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205051870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891232A (en) * | 2019-11-29 | 2020-03-17 | 歌尔股份有限公司 | Magnet mounting structure and speaker |
-
2015
- 2015-11-09 CN CN201520888441.XU patent/CN205051870U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891232A (en) * | 2019-11-29 | 2020-03-17 | 歌尔股份有限公司 | Magnet mounting structure and speaker |
| CN110891232B (en) * | 2019-11-29 | 2021-02-19 | 歌尔股份有限公司 | Magnet mounting structure and speaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |