CN204046807U - Microspeaker - Google Patents
Microspeaker Download PDFInfo
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- CN204046807U CN204046807U CN201420484912.6U CN201420484912U CN204046807U CN 204046807 U CN204046807 U CN 204046807U CN 201420484912 U CN201420484912 U CN 201420484912U CN 204046807 U CN204046807 U CN 204046807U
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- upper casing
- microspeaker
- help circle
- listening help
- casing
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Abstract
The utility model discloses a kind of Microspeaker, relate to electro-acoustic product technical field, comprise the upper casing and lower casing that combine, vibrational system and magnetic circuit system is contained in the space that described upper casing and described lower casing surround, described upper casing is arranged near described vibrational system, described Microspeaker also comprises listening help circle, and described listening help circle is fixed on described upper casing, and is positioned at the inner side of described upper casing.It is bad that the utility model Microspeaker solves the acoustics that in prior art, Microspeaker produces because of vibrating voice coil lead-in wire collision listening help circle, and the utility model Microspeaker acoustical behavior is good, and hearing aid effect is better.
Description
Technical field
The utility model relates to electro-acoustic product technical field, particularly a kind of Microspeaker with listening help circle.
Background technology
Microspeaker is the important acoustic element of portable electric appts, for completing the conversion between the signal of telecommunication and voice signal, is a kind of energy conversion device.Common Microspeaker generally includes shell, vibrational system and magnetic circuit system is contained in shell, vibrational system comprises vibrating diaphragm and vibrating voice coil, vibrating voice coil is subject to the active force of electromagnetic field, and do upper and lower motion according to alternately changing of the positive negative direction of audio electrical signal, thus drive vibrating diaphragm to sound, complete electricity-acoustic energy conversion.
But use now the old man of hearing aids being on the increase, when they answer the phone being provided with ventional loudspeakers, hearing aids can be uttered long and high-pitched sounds, and cannot use.Therefore technical staff adds listening help circle in common loud speaker, audio electrical signal becomes electromagnetic field by listening help circle, and hearing aids to which, picks up this signal by the induction coil of its inside by switching over, then amplifies and is reduced to sound.The primary structure of the loud speaker of current band listening help circle as shown in Figure 5, comprise the upper casing 10b and lower casing 20b that combine, vibrational system and magnetic circuit system is contained in the space that upper casing 10b and lower casing 20b surrounds, listening help circle 70b is fixed on lower casing 20b, and is looped around the periphery of magnetic circuit system.Space under its vibrating diaphragm of the Microspeaker of this kind of structure is very little, when vibrating voice coil up-down vibration, vibrating voice coil lead-in wire very easily encounters listening help circle, makes the high order harmonic component distortion of loud speaker, vibrating voice coil also can be caused to go between break, loud speaker generation noise etc. are bad simultaneously.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Microspeaker, and this Microspeaker high order harmonic component can not distortion, and acoustical behavior is good, and hearing aid effect is better.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of Microspeaker, comprise the upper casing and lower casing that combine, vibrational system and magnetic circuit system is contained in the space that described upper casing and described lower casing surround, described upper casing is arranged near described vibrational system, described Microspeaker also comprises listening help circle, described listening help circle is fixed on described upper casing, and is positioned at the inner side of described upper casing.
Wherein, described upper casing is hierarchic structure, and side thickness is comparatively large, and thickness is less first, and described listening help circle is fixed on the larger side of described upper thickness of the shell.
Wherein, the side that described upper thickness of the shell is larger is provided with the groove of annular, and described listening help circle is fixed in described annular groove, and the exposed surface inside described upper casing of described listening help circle flushes with the inner surface of described upper casing.
Wherein, the two ends that described annular groove is positioned at side in the middle part of described upper casing are respectively equipped with the extension slot extended outside described annular groove, the bottom of two described extension slots is equipped with the first pad for welding listening help circle lead-in wire, described upper casing is corresponding with on the end face that described lower casing contacts is provided with two the second pads of being electrically connected of first pad described with two respectively, and described second pad is electrically connected with loud speaker external circuit.
Wherein, on the end face of described lower casing, the position of corresponding two described second pads is respectively equipped with listening help circle pad, two described second pads are electrically connected with corresponding described listening help circle pad respectively, and described listening help circle pad is electrically connected with described loud speaker external circuit.
Wherein, described lower casing is the loop configuration of both ends open, and its one end away from described upper casing is hierarchic structure, and described listening help circle pad is positioned on the lower end face in described lower casing position.
Wherein, described magnetic circuit system comprises the frame be fixed on described lower casing and the magnet be successively set in described frame and washer, the higher end face of the outer surface bottom described frame and described lower casing position.
Wherein, the end face that the lower end face in described position is higher with described position connects as one by being connected sidewall, the position of the corresponding described frame of described connection sidewall is provided with opening, the sidewall of described frame is positioned at described opening part, and the outer surface of the sidewall of described frame flushes with the described outer surface being connected sidewall.
Wherein, described vibrational system comprises edge part and is fixed on vibrating diaphragm between described upper casing and described lower casing, is provided with gasket ring between the edge part of described vibrating diaphragm and described upper casing.
After have employed technique scheme, the beneficial effects of the utility model are:
Because the utility model Microspeaker comprises the upper casing and lower casing combined, vibrational system and magnetic circuit system is contained in the space that upper casing and lower casing surround, Microspeaker also comprises listening help circle, and listening help circle is fixed on the inner side of upper casing, and upper casing is arranged near vibrational system.Listening help circle is arranged on upper casing, take full advantage of the thickness space of upper casing, add the size of magnetic circuit system, too increase the space of vibrating diaphragm bottom simultaneously, when vibrating voice coil vibrates, vibrating voice coil lead-in wire can not collide with listening help circle again, thus the generation that the high order harmonic component distortion of having stopped to produce because vibrating voice coil lead-in wire collision listening help circle, vibrating voice coil lead-in wire broken string or noise etc. are bad, improve the acoustical behavior of Microspeaker, also extend the useful life of Microspeaker simultaneously.Another listening help circle is located on upper casing, and distance terminal client is nearer, the hearing aids that user wears can the magnetic field that produces of the listening help circle of perception stronger, so hearing aid effect is better.
In sum, it is bad that the utility model Microspeaker solves the acoustics that in prior art, Microspeaker produces because of vibrating voice coil lead-in wire collision listening help circle, and the utility model Microspeaker acoustical behavior is good, and hearing aid effect is better.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model Microspeaker;
Fig. 2 is the planar structure schematic diagram of the utility model Microspeaker;
Fig. 3 is the cross-sectional view of the utility model Microspeaker;
Fig. 4 is the structural representation that the upper casing of the utility model Microspeaker is combined with listening help circle;
Fig. 5 is the cross-sectional view of Microspeaker in prior art;
In figure: 10a, upper casing, 10b, upper casing, 12, acoustic aperture, 14, positioning boss, 20a, lower casing, 20b, lower casing, 30, ball top, 32, vibrating diaphragm, 34, vibrating voice coil, 40, frame, 42, magnet, 44, washer, 50, gasket ring, the 60, first pad, 62, the second pad, 64, vibrating voice coil pad, 66, listening help circle pad, 70a, listening help circle, 70b, listening help circle, 72, listening help circle lead-in wire.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.
As shown in Figure 1, a kind of Microspeaker, comprise the upper casing 10a and lower casing 20a that combine, vibrational system and magnetic circuit system is contained in the space that upper casing 10a and lower casing 20a surrounds, upper casing 10a is arranged near vibrational system, the position of the corresponding vibrational system of upper casing 10a is provided with acoustic aperture 12, and lower casing 20a is arranged near magnetic circuit system.
As shown in Figure 3, vibrational system comprises edge and is fixed on vibrating diaphragm 32 between upper casing 10a and lower casing 20a, vibrating diaphragm 32 is fixed with ball top 30 near the middle part of the side of upper casing 10a, the opposite side (namely near the side of magnetic circuit system) of vibrating diaphragm 32 is fixed with vibrating voice coil 34, and the coiling tap of vibrating voice coil 34 is vibrating voice coil lead-in wire.Magnetic circuit system comprises the frame 40 be fixed on lower casing 20a, frame 40 comprise rectangle bottom and be arranged on four side edge position, bottom with four sidewalls of bottom vertical, inner side bottom frame 40 is fixed with magnet 42 and washer 44 successively, be provided with magnetic gap between the sidewall of magnet 42 and washer 44 and frame 40, the end of vibrating voice coil 34 is positioned at magnetic gap.Vibrating voice coil 34 does reciprocal cutting magnetic line movement according to the size and Orientation by the audio electrical signal in its coiling in magnetic gap, vibrating diaphragm 32 vibrates along with the reciprocating motion of vibrating voice coil 34, instigate air sounding, thus complete the power conversion between electroacoustic.
As Fig. 3 and Fig. 4 jointly shown in, Microspeaker also comprises listening help circle 70a, and listening help circle 70a is fixed on the inner side of upper casing 10a.Upper casing 10a is hierarchic structure, its side thickness is larger, side thickness is less, the groove of an annular is provided with in the inner side of the larger side of upper casing 10a thickness, the groove of annular is avoided acoustic aperture 12 and is arranged on the sidepiece of acoustic aperture 12, listening help circle 70a is fixed in the groove of annular, and define the positioning boss 14 suitable with the inner ring of listening help circle 70a in the middle of annular groove, listening help circle 70a is fixed on upper casing 10a accurately by positioning boss 14.
As Fig. 2 and Fig. 4 jointly shown in, the end face that lower casing 20a is not combined with upper casing 10a is provided with two for being electrically connected the vibrating voice coil pad 64 of vibrating voice coil 34 (as shown in Figure 3) and loud speaker external circuit, also be provided with two are separately positioned on two vibrating voice coil pads 64 both sides for listening help circle pad 66, two the listening help circle pads 66 being electrically connected listening help circle 70a and loud speaker external circuit.The two ends of the side that annular groove is positioned in the middle part of upper casing 10a are respectively equipped with the extension slot extended outside annular groove, and the bottom of two extension slots is equipped with the first pad 60 for welding listening help circle lead-in wire 72.The end face that upper casing 10a combines with lower casing 20a is provided with two the second pads 62, two the second pads 62 are positioned at the two ends of upper casing 10a mono-side, corresponding with two the first pads 60 respectively and be electrically connected, two the second pads 62 are all electrically connected with two listening help circle pads 66 respectively by electrical connector (not shown).
As Fig. 3 and Fig. 4 jointly shown in, the side of vibrating diaphragm 32 edge part is fixed on the end face of lower casing 20a, lower casing 20a is fixed with the end face of end face lower than other position of vibrating diaphragm 32, and be fixed with gasket ring 50 between the opposite side of vibrating diaphragm 32 edge part and upper casing 10a, gasket ring 50 can strengthen the intensity of vibrating diaphragm 32.The surface of gasket ring 50 and lower casing 20a are not fixed with the end face of vibrating diaphragm 32, and the gasket ring 50 being positioned at lower casing 20a marginal position combines with upper casing 10a.The side that upper casing 10a is provided with the second pad 62 is combined with the end face that lower casing 20a is not fixed with vibrating diaphragm 32.
As Fig. 2 and Fig. 3 jointly shown in, lower casing 20a is the circulus of both ends open, and lower casing 20a is away from being hierarchic structure outside one end of upper casing 10a.Hierarchic structure comprises the lower end face in a position, also comprise the end face that a position is higher, two end faces parallel, connect as one by connecting sidewall between two end faces, the definition end face little with the spacing of upper casing 10a is the lower end face in position, and the end face large with the spacing of upper casing 10a is the higher end face in position.Vibrating voice coil pad 64 and listening help circle pad 66 are all positioned on the lower end face in position.Frame 40 exposes lower casing 20a from the opening part of lower casing 20a, and the higher end face in the position of outer surface bottom frame 40 and lower casing 20a flushes.The position connecting a sidewall of the corresponding frame 40 of sidewall is provided with perforate, and the sidewall of frame 40 exposes lower casing 20a from tapping, and the outer surface of this frame sidewall flushes with the outer surface being connected sidewall.This kind of structure of lower casing 20a not only increases the inner chamber of Microspeaker, thus increase the size of each parts of magnetic circuit system, improve the acoustical behavior of loud speaker, also reduce the thickness of loud speaker simultaneously, make Microspeaker can meet the demand of portable electric appts slimming development.
The utility model changes those skilled in the art's conventional design thought all the time, listening help circle is fixed on upper casing, thus effectively make use of the thickness space of upper casing, add the size of magnetic circuit system, too increase the space of vibrating diaphragm bottom, stop the generation of all bad phenomenon produced because vibrating voice coil lead-in wire collides with listening help circle in existing product, improve the acoustical behavior of the Microspeaker with listening help circle greatly, extend the useful life of Microspeaker simultaneously, and improve the hearing aid effect of this Microspeaker greatly.
The utility model is only carry out image and detailed description for the Microspeaker shown in Fig. 1 to Fig. 4 to the utility model technical scheme be located at by listening help circle on vibrational system side body, in practical application, this technical scheme is not only applicable to the Microspeaker of this kind of structure, as long as be provided with listening help circle and external and internal compositions allow Microspeaker all can adopt the technical solution of the utility model to obtain the technique effect identical with the utility model, therefore no matter whether its structure is identical with the utility model, as long as the product that its listening help circle is arranged on the housing of vibrational system side all falls in protection range of the present utility model.
The first pad involved in this specification and the name of the second pad, just in order to distinguish technical characteristic, do not represent position relationship therebetween, erection sequence and job order 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 (9)
1. Microspeaker, comprise the upper casing and lower casing that combine, vibrational system and magnetic circuit system is contained in the space that described upper casing and described lower casing surround, described upper casing is arranged near described vibrational system, it is characterized in that, described Microspeaker also comprises listening help circle, and described listening help circle is fixed on described upper casing, and is positioned at the inner side of described upper casing.
2. Microspeaker according to claim 1, is characterized in that, described upper casing is hierarchic structure, and side thickness is comparatively large, and thickness is less first, and described listening help circle is fixed on the larger side of described upper thickness of the shell.
3. Microspeaker according to claim 2, it is characterized in that, the side that described upper thickness of the shell is larger is provided with the groove of annular, and described listening help circle is fixed in described annular groove, and the exposed surface inside described upper casing of described listening help circle flushes with the inner surface of described upper casing.
4. Microspeaker according to claim 3, it is characterized in that, the two ends that described annular groove is positioned at side in the middle part of described upper casing are respectively equipped with the extension slot extended outside described annular groove, the bottom of two described extension slots is equipped with the first pad for welding listening help circle lead-in wire, described upper casing is corresponding with on the end face that described lower casing contacts is provided with two the second pads of being electrically connected of first pad described with two respectively, and described second pad is electrically connected with loud speaker external circuit.
5. Microspeaker according to claim 4, it is characterized in that, on the end face of described lower casing, the position of corresponding two described second pads is respectively equipped with listening help circle pad, two described second pads are electrically connected with corresponding described listening help circle pad respectively, and described listening help circle pad is electrically connected with described loud speaker external circuit.
6. Microspeaker according to claim 5, is characterized in that, described lower casing is the loop configuration of both ends open, and its one end away from described upper casing is hierarchic structure, and described listening help circle pad is positioned on the lower end face in described lower casing position.
7. Microspeaker according to claim 6, it is characterized in that, described magnetic circuit system comprises the frame be fixed on described lower casing and the magnet be successively set in described frame and washer, the higher end face of the outer surface bottom described frame and described lower casing position.
8. Microspeaker according to claim 7, it is characterized in that, the end face that the lower end face in described position is higher with described position connects as one by being connected sidewall, the position of the corresponding described frame of described connection sidewall is provided with opening, the sidewall of described frame is positioned at described opening part, and the outer surface of the sidewall of described frame flushes with the described outer surface being connected sidewall.
9. the Microspeaker according to the arbitrary claim of claim 1 to 8, is characterized in that, described vibrational system comprises edge part and is fixed on vibrating diaphragm between described upper casing and described lower casing, is provided with gasket ring between the edge part of described vibrating diaphragm and described upper casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484912.6U CN204046807U (en) | 2014-08-26 | 2014-08-26 | Microspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484912.6U CN204046807U (en) | 2014-08-26 | 2014-08-26 | Microspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204046807U true CN204046807U (en) | 2014-12-24 |
Family
ID=52247426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420484912.6U Active CN204046807U (en) | 2014-08-26 | 2014-08-26 | Microspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204046807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168527A (en) * | 2014-08-26 | 2014-11-26 | 歌尔声学股份有限公司 | Miniature loudspeaker |
-
2014
- 2014-08-26 CN CN201420484912.6U patent/CN204046807U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168527A (en) * | 2014-08-26 | 2014-11-26 | 歌尔声学股份有限公司 | Miniature loudspeaker |
| CN104168527B (en) * | 2014-08-26 | 2017-08-18 | 歌尔股份有限公司 | Microspeaker |
| US10111008B2 (en) | 2014-08-26 | 2018-10-23 | Goertek Inc. | Miniature 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. |