CN205179348U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN205179348U CN205179348U CN201520934364.7U CN201520934364U CN205179348U CN 205179348 U CN205179348 U CN 205179348U CN 201520934364 U CN201520934364 U CN 201520934364U CN 205179348 U CN205179348 U CN 205179348U
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- magnetic
- ring
- iron
- strutting piece
- 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 is including fixing U iron on the shell, the inside of U iron is equipped with support piece, support piece's outside cover is equipped with ring magnetism, the ring magnetism with be equipped with the magnetic gap between the U iron, just the magnetic field direction of ring magnetism is radial. The utility model discloses loudspeaker work linear range was narrow when technical problem during loudspeaker had solved prior art, the utility model discloses loudspeaker magnetic field width is big, and the linear range of work is wide, 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.Wherein magnet is loop configuration, and the N pole of magnet and S pole are separately positioned on the two ends up and down of magnet, and namely its magnetic field produced is axially, consistent with the direction of vibration of vibrational system, by T iron magnetic conduction, forms magnetic gap with washer, forms uniform magnetic field in magnetic gap.The magnetic field width of its magnetic circuit of loud speaker of this kind of structure is subject to the restriction of washer thickness, can not be applied to Oscillation Amplitude comparatively large, and in the higher loud speaker of magnetic circuit linear requirements.
Utility model content
For above defect, technical problem to be solved in the utility model is to provide a kind of loud speaker, and the magnetic field width of this loud speaker can adjust flexibly, has the uniform magnetic field of enough width, and no longer by the restriction of washer thickness, the range of linearity of work is wide.
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 fixing U iron on the housing, the inside of described U iron is provided with strutting piece, the outside of described strutting piece is arranged with ring magnetic, is provided with magnetic gap between described ring magnetic and described U iron, and the magnetic direction of described ring magnetic is radial.
Wherein, described ring disk pack draws together the first ring magnetic and the second ring magnetic that superpose and be set in outside described strutting piece.
Wherein, the described strutting piece between described first ring magnetic and described second ring magnetic is arranged with short-circuited conducting sleeve.
Wherein, described strutting piece one end bottom described U iron is provided with the land of protrusion, and the bottom of described ring magnetic is dropped in described land.
Wherein, described strutting piece is iron core.
After have employed technique scheme, the beneficial effects of the utility model are:
Magnetic circuit system due to the utility model loud speaker comprises U iron, and the inside of U iron is provided with strutting piece, and the outside of strutting piece is arranged with ring magnetic, is provided with magnetic gap between ring magnetic and U iron, and the magnetic direction of ring magnetic is radial.The magnetic direction of ring magnetic is radial, namely the N pole of ring magnetic and S pole are separately positioned on the inside and outside both sides of ring magnetic, ring magnetic directly and U iron form uniform magnetic field, the width in magnetic field can be adjusted by the high flexible of adjustment ring magnetic, no longer by the restriction of washer thickness, the magnetic field of enough width can be obtained, improve the range of linearity of speaker operation greatly; Simultaneously radial magnetic field can also reduce the impact on magnetic nonlinearity when voice coil loudspeaker voice coil works.Thus the utility model loud speaker acoustical behavior is good, Oscillation Amplitude can be applicable to large, and in the high loud speaker of magnetic circuit linear requirements.
Because ring disk pack draws together the first ring magnetic and the second ring magnetic axially superposing and be set in outside strutting piece, be more conducive to processing and assembling while two ring magnetic superpositions are arranged on and add magnetic field width, the production efficiency of loud speaker can be improved.
Due to the strutting piece between first ring magnetic and the second ring magnetic being arranged with short-circuited conducting sleeve, the induced field that short-circuited conducting sleeve produces when can offset voice coil loudspeaker voice coil work, effectively inhibit the rising of high-frequency resistance, improve the high frequency output of loud speaker, reduce the induced field of voice coil loudspeaker voice coil generation to the impact of Nonlinear Magnetic Circuit, thus reduce low-frequency distortion, further improve the overall acoustical behavior of loud speaker.
In sum, the utility model loud speaker solves the technical problems such as the speaker operation range of linearity in prior art is narrow, and the utility model loud speaker magnetic field width is large, and the range of linearity of work is wide, and 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;
In figure: 10, shell, 12, edge, 20, dust cover, 22, ring, 24, cone basin, 26, voice coil loudspeaker voice coil, 28, play ripple, 300, first ring magnetic, the 302, second ring magnetic, 32, short-circuited conducting sleeve, 34, strutting piece, 340, land, 36, U iron, 40, sealing ring.
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 in shell 10.Magnetic circuit system comprises the U iron 36 being fixed on shell 10 lower center portion, the bottom of U iron 36 is loop configuration, namely a through hole is provided with in the middle part of it, a cylindrical support part 34 is fixed with in the inner side of U iron 36, strutting piece 34 is fixed on the edge of through hole, and the internal diameter of strutting piece 34 and the diameter of through hole consistent, strutting piece 34 is iron core.The outboard shafts of strutting piece 34 is to being arranged with ring magnetic, in present embodiment, preferred ring magnetic is provided with two, be respectively first ring magnetic 300 and the second ring magnetic 302, first ring magnetic 300 and the superposition of the second ring magnetic about 302 are set on strutting piece 34, and namely axially superposition is set in the outside of strutting piece 34.First ring magnetic 300 and the second ring magnetic 302 form magnetic gap jointly and between the sidewall of U iron 36, the magnetic direction of first ring magnetic 300 and the second ring magnetic 302 is radial, namely the N pole of first ring magnetic 300 and the second ring magnetic 302 and S pole are separately positioned on both sides inside and outside it, namely the direction in magnetic field and the direction of vibration of vibrational system vertical.
As Fig. 1 and Fig. 3 jointly shown in, the strutting piece 34 between first ring magnetic 300 and the second ring magnetic 302 is also arranged with short-circuited conducting sleeve 32, and short-circuited conducting sleeve 32 is copper ring, can improve low-frequency distortion and the high frequency frequency response of loud speaker.
As shown in Figure 3, the height of strutting piece 34 is consistent with the Sidewall Height of U iron 36, and the sidewall upper of U iron 36 is fixed on the lower end of shell 10.
As Fig. 1 and Fig. 3 jointly shown in, strutting piece 34 is provided with land 340 near one end of the bottom of U iron 36, land 340 protrudes from the outer surface of strutting piece 34, and the upper surface of land 340 forms a support face, and the bottom of the second ring magnetic 302 is dropped on the upper surface of land 340.
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 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.
The quantity of ring magnetic is not limited to above-mentioned two, the design of two ring magnetic is only the decision design that technical staff has considered speaker performance and the factor such as processing and assembling and makes, in practical application, technical staff can follow the quantity selecting ring magnetic according to the size of loud speaker and performance requirement flexibly, one or three etc. can be designed to, because the embodiment arranging other quantity ring magnetic is substantially identical with above-mentioned execution mode, therefore will not enumerate at this.
The utility model, by being the ring magnetic that axial magnet has changed that magnetic direction is radial direction into by original magnetic direction, making the width of uniform magnetic field no longer by the restriction of washer thickness, improves the range of linearity of speaker operation greatly; Simultaneously radial magnetic field can also reduce the impact on magnetic nonlinearity when voice coil loudspeaker voice coil works.Thus the utility model loud speaker acoustical behavior is good, Oscillation Amplitude can be applicable to large, and in the high loud speaker of magnetic circuit linear requirements.
The name of the first ring magnetic related in this specification and the second ring magnetic is only to distinguish technical characteristic, does not represent position relationship therebetween, 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 (5)
1. loud speaker, comprise shell, and the vibrational system be housed in described shell and magnetic circuit system, it is characterized in that, described magnetic circuit system comprises fixing U iron on the housing, and the inside of described U iron is provided with strutting piece, and the outside of described strutting piece is arranged with ring magnetic, be provided with magnetic gap between described ring magnetic and described U iron, and the magnetic direction of described ring magnetic is radial.
2. loud speaker according to claim 1, is characterized in that, described ring disk pack draws together the first ring magnetic and the second ring magnetic that superpose and be set in outside described strutting piece.
3. loud speaker according to claim 2, is characterized in that, the described strutting piece between described first ring magnetic and described second ring magnetic is arranged with short-circuited conducting sleeve.
4. the loud speaker according to the arbitrary claim of claims 1 to 3, is characterized in that, described strutting piece one end bottom described U iron is provided with the land of protrusion, and the bottom of described ring magnetic is dropped in described land.
5. loud speaker according to claim 4, is characterized in that, described strutting piece is iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934364.7U CN205179348U (en) | 2015-11-20 | 2015-11-20 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934364.7U CN205179348U (en) | 2015-11-20 | 2015-11-20 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205179348U true CN205179348U (en) | 2016-04-20 |
Family
ID=55743273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520934364.7U Active CN205179348U (en) | 2015-11-20 | 2015-11-20 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205179348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465977A (en) * | 2017-09-29 | 2017-12-12 | 钟礼通 | Concentric shafts radiate magnetic circuit loudspeaker |
| CN109842841A (en) * | 2017-11-27 | 2019-06-04 | 深圳市三诺数字科技有限公司 | A kind of speaker unit |
-
2015
- 2015-11-20 CN CN201520934364.7U patent/CN205179348U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465977A (en) * | 2017-09-29 | 2017-12-12 | 钟礼通 | Concentric shafts radiate magnetic circuit loudspeaker |
| CN109842841A (en) * | 2017-11-27 | 2019-06-04 | 深圳市三诺数字科技有限公司 | A kind of speaker unit |
| CN109842841B (en) * | 2017-11-27 | 2024-04-02 | 深圳市三诺数字科技有限公司 | Loudspeaker 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. |