CN205179350U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
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- CN205179350U CN205179350U CN201520938435.0U CN201520938435U CN205179350U CN 205179350 U CN205179350 U CN 205179350U CN 201520938435 U CN201520938435 U CN 201520938435U CN 205179350 U CN205179350 U CN 205179350U
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- washer
- halfbody
- short
- magnet
- loud speaker
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Abstract
The utility model discloses a loudspeaker relates to electro -acoustic products technical field, including the shell, and accept vibration system and magnetic circuit in the shell, magnetic circuit includes magnetic force transmission member and fixes in proper order last magnet and the hua si of magnetic force transmission member, loudspeaker still includes the short circuit ring, the short circuit ring is fixed one side of magnetic gap is close to in china department, china department goes up and corresponds the position of short circuit ring is equipped with the annular, the short circuit ring is fixed in the annular, just the surface of short circuit ring with this side surface of china department flushes. The utility model discloses loudspeaker has solved loudspeaker sensitivity low grade technical problem among the prior art, the utility model discloses loudspeaker's high -frequency characteristic is good, and linear range is big in work, and sensitivity is high, and whole acoustic performance is good.
Description
Technical field
The utility model relates to electro-acoustic product technical field, particularly a kind of loud speaker.
Background technology
Loud speaker, for completing the conversion between the signal of telecommunication and voice signal, is a kind of energy conversion device.Existing loud speaker involving vibrations system and magnetic circuit system, magnetic circuit system mainly comprises T iron and is arranged on magnet and the washer of T iron edge, magnet and be provided with magnetic gap between washer and T iron, and the voice coil loudspeaker voice coil in vibrational system is positioned at magnetic gap.When speaker operation, the external acoustic waves signal of telecommunication drives voice coil loudspeaker voice coil in magnetic gap internal vibration, while voice coil vibrations, reverse induced field can be produced, this induced field can make the high-frequency resistance of loud speaker rise fast, suppresses high frequency output, causes higher frequency to respond impaired.
In order to overcome above-mentioned technical problem, technical staff can arrange a short-circuited conducting sleeve in magnetic gap, and this short-circuited conducting sleeve can offset the induced field that voice coil loudspeaker voice coil produces, and reduces its impact on magnetic field, improves the high frequency response of loud speaker.But, the space that short-circuited conducting sleeve can take magnetic gap is set in magnetic gap, causes magnetic gap space to reduce, the sensitivity of loud speaker can be caused to decline, reduce the overall acoustical behavior of loud speaker.
Utility model content
For above defect, technical problem to be solved in the utility model is to provide a kind of loud speaker, and this loudspeaker high frequency performance is good, highly sensitive, and overall acoustical behavior is good.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of loud speaker, comprise shell, and the vibrational system be housed in described shell and magnetic circuit system, described magnetic circuit system comprises magnetic conductive part and the magnet be fixed on successively on described magnetic conductive part and washer, described loud speaker also comprises short-circuited conducting sleeve, and described short-circuited conducting sleeve is fixed on the side of described washer near magnetic gap, and on described washer, the position of corresponding described short-circuited conducting sleeve is provided with annular groove, described short-circuited conducting sleeve is fixed in described annular groove, and the outer surface of described short-circuited conducting sleeve flushes with this side surface of described washer.
Wherein, described washer comprises the first washer halfbody and the second washer halfbody of superposition setting, described first washer halfbody is identical with described second washer half body structure and be symmetrical arranged, described first washer halfbody and described second washer halfbody are near described magnetic gap side and the two position contacted is equipped with depressed part, and two described depressed parts form described annular groove jointly.
Wherein, described washer protrudes from described magnet near the side of described magnetic gap, and the position that described first washer halfbody and described second washer halfbody protrude from described magnet is respectively equipped with to the convex edge away from described annular groove direction projection.
Wherein, the longitudinal section of described convex edge is right-angled triangle or right-angled trapezium.
Wherein, described magnet comprises the internal magnet be fixed on successively in the middle part of described magnetic conductive part and the external magnet being looped around described internal magnet periphery, described internal magnet and described external magnet are fixed with interior washer and outer washer respectively, described internal magnet and interior washer and be provided with described magnetic gap between described external magnet and described outer washer; Described interior washer and described outer washer are formed by described first washer halfbody and described second washer halfbody.
Wherein, described interior washer and described outer washer are all fixed with described short-circuited conducting sleeve.
Wherein, the inner side of described external magnet is fixed with another short-circuited conducting sleeve.
Wherein, the outside of described internal magnet is fixed with a short-circuited conducting sleeve again.
After have employed technique scheme, the beneficial effects of the utility model are:
Short-circuited conducting sleeve due to the utility model loud speaker is fixed on the side of washer near magnetic gap, and washer is provided with annular groove, and short-circuited conducting sleeve is fixed in annular groove, and the outer surface of short-circuited conducting sleeve flushes with this side surface of washer.Short-circuited conducting sleeve counteracts the induced field that voice coil loudspeaker voice coil produces, and inhibits the rising of high-frequency resistance, improves the high frequency output of loud speaker, reduces the induced field of voice coil loudspeaker voice coil generation to the impact of Nonlinear Magnetic Circuit, thus reduces harmonic distortion; Short-circuited conducting sleeve is embedded in washer simultaneously, its outer surface flushes with this side surface of washer, and side short-circuited conducting sleeve does not take the space of magnetic gap, avoids the impact of short-circuited conducting sleeve on magnetic field intensity, improve the sensitivity of loud speaker, thus improve the overall acoustical behavior of loud speaker.
Because washer comprises the first washer halfbody and the second washer halfbody of superposition setting, first washer halfbody is identical with the second washer half body structure and be symmetrical arranged, the position that first washer halfbody and the second washer halfbody contact is equipped with depressed part, and two depressed parts form annular groove jointly.A washer is divided into two halfbodies superposed up and down, is so more conducive to the processing of annular groove, reduce the difficulty of annular groove processing, be conducive to the production efficiency improving loud speaker.
Because washer protrudes from magnet near the side of magnetic gap, the position that the first washer halfbody and the second washer halfbody protrude from magnet is respectively equipped with to the convex edge away from annular groove direction projection.The setting of convex edge adds the thickness that washer is positioned at magnetic gap side, adds the width of uniform magnetic field, thus considerably increases the range of linearity of speaker operation, improves Oscillation Amplitude and the sensitivity of loud speaker.
Because the inner side at external magnet is also fixed with a short-circuited conducting sleeve, this short-circuited conducting sleeve can offset the magnetic field that voice coil loudspeaker voice coil produces equally, further suppresses the rising of high-frequency resistance, improves the high frequency response of loud speaker, further improves the overall acoustical behavior of loud speaker.
Because the outside of internal magnet is also fixed with another short-circuited conducting sleeve, this short-circuited conducting sleeve can offset the magnetic field that voice coil loudspeaker voice coil produces equally, further inhibit the rising of high-frequency resistance, improve the high frequency response of loud speaker, further improve the overall acoustical behavior of loud speaker.
In sum, the utility model loud speaker solves the technical problems such as loudspeaker sensitivity in prior art is low, and the high frequency performance of the utility model loud speaker is good, and the work range of linearity is large, and highly sensitive, overall acoustical behavior is good.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of the utility model loud speaker;
Fig. 2 is the constitutional diagram of Fig. 1;
Fig. 3 is the A-A line cutaway view of Fig. 2;
Fig. 4 is the structural representation of the magnetic circuit system of the utility model loud speaker;
Fig. 5 is the structural representation of the outer washer of the utility model loud speaker;
Fig. 6 is the structural representation of the interior washer of the utility model loud speaker;
In figure: 10, shell, 12, edge, 20, dust cover, 22, ring, 24, cone basin, 26, voice coil loudspeaker voice coil, 28, play ripple, 30, magnetic circuit system, 300, washer halfbody in first, 302, washer halfbody in second, 304, first annular groove, 31, convex edge, 320, first outer washer halfbody, 322, second outer washer halfbody, 324, second annular groove, 34, internal magnet, 36, external magnet, 38, magnetic conductive board, 380, connecting hole, 40, first short-circuited conducting sleeve, 42, second short-circuited conducting sleeve, 44, 3rd short-circuited conducting sleeve, 46, 4th short-circuited conducting sleeve, 50, sealing ring, 60, screw.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.
The side of nearly speaker center is depended in the inner side related in this specification, and outside refers to the side away from speaker center; The orientation related in this specification refers to the direction being provided with vibrational system, under orientation, refer to the direction being provided with magnetic circuit system.
As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, a kind of loud speaker is circular configuration, comprises shell 10, contains vibrational system and magnetic circuit system 30 in shell 10.Magnetic circuit system comprises the magnetic conductive part be fixed on bottom shell 10, and in present embodiment, magnetic conductive part is magnetic conductive board 38, and magnetic conductive board 38 is fixed with magnet and washer successively, and magnet comprises internal magnet 34 and external magnet 36, and washer comprises interior washer and outer washer.The center of magnetic conductive board 38 is fixed with internal magnet 34 and interior washer successively, and the marginal position of magnetic conductive board 38 is fixed with the external magnet 36 of annular and outer washer successively.The internal magnetic circuit of internal magnet 34 and interior washer composition magnetic circuit system, the external magnetic circuit of external magnet 36 and outer washer composition magnetic circuit system, be provided with magnetic gap between internal magnetic circuit and external magnetic circuit, the voice coil loudspeaker voice coil 26 of vibrational system is positioned at magnetic gap.
As Fig. 1, Fig. 4 and Fig. 6 jointly shown in, interior washer is circular configuration, by superpose be set together first of circle in washer halfbody 300 and second washer halfbody 302 form, in first, washer halfbody 300 and plane symmetry of relative to the two combining identical with washer halfbody 302 structure in second is arranged, and namely in washer halfbody 300 and second, washer halfbody about 302 is symmetrical arranged in first.The edge part that in first, in washer halfbody 300 and second, washer halfbody 302 is adjacent is provided with depressed part, and depressed part is right-angle structure; The edge part that in second, in washer halfbody 302 and first, washer halfbody 300 is adjacent is also provided with the depressed part of right-angle structure, two depressed parts jointly form a horizontal direction opening and opening towards the first annular groove 304 of magnetic gap, namely the first annular groove 304 is arranged on the side of interior washer near magnetic gap.The outer surface (being namely exposed at the side surface in magnetic gap) being provided with the first short-circuited conducting sleeve 40, first short-circuited conducting sleeve 40 in the first annular groove 304 flushes with the outer surface of interior washer.
As Fig. 1, Fig. 4 and Fig. 5 jointly shown in, outer washer is cirque structure, be made up of the first outer washer halfbody 320 and the second outer washer halfbody 322 that superpose the annular be set together, first outer washer halfbody 320 and plane symmetry of relative to the two combining identical with the second outer washer halfbody 322 structure is arranged, and namely the first outer washer halfbody 320 and the second outer washer halfbody 322 are also be symmetrical arranged up and down.The inner edge portion that first outer washer halfbody 320 is adjacent with the second outer washer halfbody 322 is provided with depressed part, and depressed part is similarly right-angle structure; The inner edge portion that second outer washer halfbody 322 is adjacent with the first outer washer halfbody 322 is also provided with the depressed part of right-angle structure, these two depressed parts jointly form a horizontal direction opening and opening towards the second annular groove 324 of magnetic gap, namely the second annular groove 324 is arranged on the side of outer washer near magnetic gap.The outer surface (being namely exposed at the side surface in magnetic gap) being provided with the second short-circuited conducting sleeve 42, second short-circuited conducting sleeve 42 in the second annular groove 324 flushes with the inner surface of outer washer.
As Fig. 4, Fig. 5 and Fig. 6 jointly shown in, the outer ledge of interior washer protrudes from internal magnet 34 and arranges, and namely, the diameter of washer is greater than the diameter of internal magnet 34.The edge that in first, in washer halfbody 300 and second, washer halfbody 302 protrudes from internal magnet 34 is equipped with one to the convex edge 31 away from the first annular groove 304 direction projection.The inside edge of outer washer protrudes from the inside edge setting of external magnet 36, and the edge that the first outer washer halfbody 320 and the second outer washer halfbody 322 protrude from external magnet 36 is equipped with one to the convex edge 31 away from the second annular groove 324 direction projection.The longitudinal section of the preferred convex edge 31 of present embodiment is right-angled triangle or right-angled trapezium, and namely, the edge part thickness of washer is greater than the thickness of its central part, and the thickness of the inner side edge edge of outer washer is greater than the thickness of its side edge section.The setting of convex edge 31 can add the thickness that interior washer and outer washer are positioned at magnetic gap side, adds uniform magnetic field width in vertical direction, considerably increases the range of linearity of speaker operation, be conducive to the acoustical behavior promoting loud speaker.
As Fig. 1 and Fig. 4 jointly shown in, the thickness madial wall of external magnet 36 being fixed with the 3rd short-circuited conducting sleeve the 44, three short-circuited conducting sleeve 44 is less than the width that outer washer protrudes from external magnet 36 position; The thickness lateral wall of internal magnet 34 being fixed with the 4th short-circuited conducting sleeve the 46, four short-circuited conducting sleeve 46 is less than the width that interior washer protrudes from internal magnet 34 position, and namely the 3rd short-circuited conducting sleeve 44 and the 4th short-circuited conducting sleeve 46 all can not interfere with the vibration of voice coil loudspeaker voice coil 26.3rd short-circuited conducting sleeve 44 is fixed on external magnet 36 one end near magnetic conductive board 38, and the 4th short-circuited conducting sleeve 46 is also fixed on internal magnet 34 one end near magnetic conductive board 38, and the height of the 3rd short-circuited conducting sleeve 44 is greater than the height of the 4th short-circuited conducting sleeve 46.
As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, vibrational system comprises peripheral portion and is fixed on ring 22 on shell 10 end face, the inner edge portion of ring 22 is fixed with trumpet-shaped cone basin 24, the middle part of cone basin 24 is provided with manhole, the skeleton of voice coil loudspeaker voice coil 26 is fixed on this through hole, and the skeleton upper end of voice coil loudspeaker voice coil 26 covers and is fixed with dust cover 20, and the skeleton periphery of voice coil loudspeaker voice coil 26 is fixed with and plays ripple 28, the peripheral portion playing ripple 28 is fixed on shell 10, effectively can prevent voice coil loudspeaker voice coil 26 polarization.Voice coil loudspeaker voice coil 26 is subject to the effect of magnetic field force, thus do reciprocal moving up and down according to the size and Orientation by the alternating current in its coiling, cone basin 24 and dust cover 20 vibrate along with moving up and down of voice coil loudspeaker voice coil 26, instigate air sounding, thus complete the power conversion between electroacoustic.
As shown in Figure 1, magnetic conductive board 38 is provided with three connecting holes 380, and the position of corresponding three connecting holes 380 in bottom of shell 10 is provided with three through holes, and magnetic conductive board 38 is fixed in shell 10 through respective through hole and connecting hole 380 by three screws 60 respectively simultaneously.
As Fig. 1 and Fig. 3 jointly shown in, the periphery of shell 10 is provided with the edge 12 for being connected with terminal, and the downside at edge 12 is provided with sealing ring 50.
Short-circuited conducting sleeve by setting up short-circuited conducting sleeve, and is embedded in washer inside by the utility model, avoids short-circuited conducting sleeve and takies magnetic gap space, improves the sensitivity of loud speaker while effectively inhibit high-frequency resistance to rise.Simultaneously, identical and two washer halfbodies superposing setting are up and down formed by structure for washer and outer washer, considerably increase the range of linearity of speaker operation, further improve the acoustical behavior of the utility model loud speaker while reducing difficulty of processing.
The band sequenced name (as washer halfbody in washer halfbody and second in first) related in this specification is only to distinguish technical characteristic, does not represent the position relationship between each feature, assemble sequence etc.
The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion made, all drop within protection range of the present utility model.
Claims (8)
1. loud speaker, comprise shell, and the vibrational system be housed in described shell and magnetic circuit system, described magnetic circuit system comprises magnetic conductive part and the magnet be fixed on successively on described magnetic conductive part and washer, it is characterized in that, described loud speaker also comprises short-circuited conducting sleeve, described short-circuited conducting sleeve is fixed on the side of described washer near magnetic gap, on described washer, the position of corresponding described short-circuited conducting sleeve is provided with annular groove, described short-circuited conducting sleeve is fixed in described annular groove, and the outer surface of described short-circuited conducting sleeve flushes with this side surface of described washer.
2. loud speaker according to claim 1, it is characterized in that, described washer comprises the first washer halfbody and the second washer halfbody of superposition setting, described first washer halfbody is identical with described second washer half body structure and be symmetrical arranged, described first washer halfbody and described second washer halfbody are near described magnetic gap side and the two position contacted is equipped with depressed part, and two described depressed parts form described annular groove jointly.
3. loud speaker according to claim 2, it is characterized in that, described washer protrudes from described magnet near the side of described magnetic gap, and the position that described first washer halfbody and described second washer halfbody protrude from described magnet is respectively equipped with to the convex edge away from described annular groove direction projection.
4. loud speaker according to claim 3, is characterized in that, the longitudinal section of described convex edge is right-angled triangle or right-angled trapezium.
5. the loud speaker according to the arbitrary claim of claim 2 to 4, it is characterized in that, described magnet comprises the internal magnet be fixed on successively in the middle part of described magnetic conductive part and the external magnet being looped around described internal magnet periphery, described internal magnet and described external magnet are fixed with interior washer and outer washer respectively, described internal magnet and described interior washer and be provided with described magnetic gap between described external magnet and described outer washer; Described interior washer and described outer washer are formed by described first washer halfbody and described second washer halfbody.
6. loud speaker according to claim 5, is characterized in that, described interior washer and described outer washer are all fixed with described short-circuited conducting sleeve.
7. loud speaker according to claim 6, is characterized in that, the inner side of described external magnet is fixed with another short-circuited conducting sleeve.
8. loud speaker according to claim 7, is characterized in that, the outside of described internal magnet is fixed with a short-circuited conducting sleeve again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520938435.0U CN205179350U (en) | 2015-11-20 | 2015-11-20 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520938435.0U CN205179350U (en) | 2015-11-20 | 2015-11-20 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205179350U true CN205179350U (en) | 2016-04-20 |
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ID=55743275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520938435.0U Active CN205179350U (en) | 2015-11-20 | 2015-11-20 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205179350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058852A1 (en) * | 2016-09-30 | 2018-04-05 | 歌尔股份有限公司 | Microacoustic device |
-
2015
- 2015-11-20 CN CN201520938435.0U patent/CN205179350U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058852A1 (en) * | 2016-09-30 | 2018-04-05 | 歌尔股份有限公司 | Microacoustic device |
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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. |