CN204906682U - Magnetic drive mechanism and including this magnetic drive mechanism's receiver - Google Patents
Magnetic drive mechanism and including this magnetic drive mechanism's receiver Download PDFInfo
- Publication number
- CN204906682U CN204906682U CN201520522055.9U CN201520522055U CN204906682U CN 204906682 U CN204906682 U CN 204906682U CN 201520522055 U CN201520522055 U CN 201520522055U CN 204906682 U CN204906682 U CN 204906682U
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- driving mechanism
- middle level
- dividing plate
- magnetic driving
- lower shell
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Abstract
The utility model provides a magnetic drive mechanism and including this magnetic drive mechanism's receiver, wherein this magnetic drive mechanism includes casing and middle level baffle under the balanced armature of U type, the shell, the bottom fixed connection of casing under the one end of the balanced armature of U type and the shell, the other end is unsettled to be lain in in the first cavity that the casing enclosed under middle level baffle and the shell, casing and middle level baffle are used for providing the magnetic flow route under the shell. The utility model discloses a magnetic drive mechanism and including this magnetic drive mechanism's receiver has that the structure is simplified, advantage such as small.
Description
Technical field
The utility model relates to microminiature device layout technical field, relates in particular to a kind of magnetic driving mechanism and comprises the receiver of this magnetic driving mechanism.
Background technology
Receiver is widely used in the portable electric appts such as mobile phone, notebook computer, hearing aids.Along with the fast development of these portable electric appts, people are also more and more stronger to its Functional Requirement, the receiver be applied thereon is also corresponding to be developed rapidly.
The U-shaped magnetic driving mechanism of extensive use in general receiver, its operation principle is: the general principle utilizing electromagnetic conversion, during work, ac current signal passes through magnetic induction coil, coil-induced magnetisation, the U-shaped balanced armature being opposite to thiol carries out magnetic (pole) and changes, and is then repelled each other according to the same sex (pole), principle up-down vibration in two pieces of permanent magnets that the opposite sex (pole) is attracting by the U-shaped balanced armature that magnetic (pole) is changed.The sounding vibrating diaphragm of this magnetic driving mechanism is connected on U-shaped balanced armature by a metal conduction bar, and the up-down vibration of U-shaped balanced armature drives vibrating diaphragm up-down vibration, and then agitates the air in earphone cavity, thus sounds.In order to the acoustical quality of whole receiver can be improved, U-shaped balanced armature also can be made to fix, in the magnetic driving mechanism of traditional receiver, be generally all provided with iron core.
But, iron core in the U-shaped magnetic driving mechanism of tradition receiver is hollow structure, the complex structure of this hollow structure, iron core can be caused to take a large amount of spaces, make the cavity of whole receiver and volume become large, and due to the existence of this hollow structure, making when assembling receiver cannot quick position, the difficulty realizing automatic assembling is comparatively large, and cost of manufacture is high.
Utility model content
For this reason, technical problem to be solved in the utility model is to overcome large etc. the problem of the magnetic driving mechanism complex structure of receiver in prior art, volume, thus proposes the little magnetic driving mechanism of a kind of designs simplification, volume and comprise the receiver of this magnetic driving mechanism.
A kind of magnetic driving mechanism of the present utility model, comprises U-shaped balanced armature, housing lower shell and middle level dividing plate;
Described one end of U-shaped balanced armature is fixedly connected with the bottom of housing lower shell, and the other end is unsettled is positioned at the first hollow cavity that described middle level dividing plate and housing lower shell surround;
Described housing lower shell and middle level dividing plate are used for providing magnetic flux path.
Preferably, the bottom of described housing lower shell comprises a groove, and one end of described U-shaped balanced armature is positioned at described groove.
Preferably, the first permanent magnet, the second permanent magnet and coil is also comprised;
Described first permanent magnet is positioned at the upside of the other end of described U-shaped balanced armature, described second permanent magnet is positioned at the downside with the other end of the described U-shaped balanced armature of described first permanent magnet relative position, described coil is arranged with at described first permanent magnet and the other position closer to described U-shaped balanced armature other end end of the second permanent magnet, and described coil top is fixedly connected with described middle level dividing plate, described coil bottom is fixedly connected with the bottom of described housing lower shell.
Preferably, described middle level dividing plate comprises the first through hole, and described first through hole is used for penetrating for described first permanent magnet.
Preferably, the bottom of described housing lower shell comprises a upper projecting portion, and described coil bottom is fixedly connected in described upper projecting portion.
Preferably, the material of described housing lower shell and middle level dividing plate all adopts soft magnetic material.
Preferably, described one end of U-shaped balanced armature is fixedly connected with the bottom of housing lower shell and replaces with:
One end of described U-shaped balanced armature is fixedly connected with described middle level dividing plate.
Preferably, described middle level dividing plate comprises a lower convex portion, and described coil top is fixedly connected on described lower convex portion.
A kind of receiver of the utility model, comprises above-mentioned magnetic driving mechanism, conducting power rod, vibrating diaphragm mechanism and housing upper shell;
The middle level dividing plate of described magnetic driving mechanism also comprises the second through hole, described conducting power rod is through described second through hole, one end of described conducting power rod is connected with the other end of described U-shaped balanced armature, and the other end of described conducting power rod is connected with described vibrating diaphragm mechanism;
Described vibrating diaphragm mechanism is positioned at the second hollow cavity that described middle level dividing plate and described housing upper shell surround.
Preferably, described vibrating diaphragm mechanism comprises vibrating diaphragm, shell fragment, activity box and fixed frame;
Described fixed frame is fixedly connected with the sidewall of housing lower shell;
One side frame of described activity box is flexibly connected with described fixed frame, and the opposite side frame of the described activity box relative with a described side frame is fixedly connected with the other end of described conducting power rod;
Described vibrating diaphragm is connected with described activity box by shell fragment, and the other end of described conducting power rod is connected with described activity box.
Technique scheme of the present utility model has the following advantages compared to existing technology:
By arranging middle level dividing plate in magnetic driving mechanism of the present utility model, middle level dividing plate is matched with housing lower shell can be used for providing magnetic flux path, form closed magnetic circuit, that is middle level dividing plate and housing lower shell are doubled as the iron core in magnetic driving mechanism.And the set-up mode by one end of U-shaped balanced armature is directly fixedly connected with housing lower shell, form magnetic driving mechanism, thus eliminate the iron core of the hollow structure generally adopted in prior art, also abandoned the mode of fixing U-shaped balanced armature with the iron core of hollow structure, thus simplified the structure of magnetic driving mechanism and reduce the volume of magnetic driving mechanism.
By arranging a groove in the bottom of housing lower shell in magnetic driving mechanism of the present utility model, one end of U-shaped balanced armature is positioned at this groove, U-shaped balanced armature can be made to be embedded in housing lower shell, thus U-shaped balanced armature volume occupied in the first hollow cavity can be reduced, thus the volume of magnetic driving mechanism can be reduced further, in addition, also because be provided with this groove, when assembling U-shaped balanced armature, be conducive to quick position, greatly facilitate the assembling of magnetic driving mechanism, be conducive to the automation and the pile line operation that realize assembling, thus significantly reduce cost of manufacture.
By arranging the first through hole on the dividing plate of middle level in magnetic driving mechanism of the present utility model, make the first permanent magnet can penetrate this first to pass through, thus middle level dividing plate can down be installed to reduce the space shared by the first hollow cavity further, further reduces the volume of magnetic driving mechanism.
In magnetic driving mechanism of the present utility model, upper projecting portion is set by the bottom at housing lower shell, make when assembling coil, be conducive to quick position, thus facilitate the assembling of magnetic driving mechanism further, be conducive to the automation and the pile line operation that realize assembling, reduce further cost of manufacture.
By one end of U-shaped balanced armature is fixedly connected with middle level dividing plate in magnetic driving mechanism of the present utility model, instead of it and be fixedly connected with housing lower shell, thus enrich the installation form of armature in the first hollow cavity.One end due to U-shaped balanced armature fixes with middle level dividing plate, so after can first the parts such as U-shaped balanced armature, the first permanent magnet, coil being installed on the dividing plate of middle level when assembling, integrally be fixed with housing lower shell again and be connected, make the assembling of magnetic driving mechanism more reasonable, more be conducive to the application of industrial streamline, reduce cost of manufacture.
By arranging lower convex portion on the dividing plate of middle level in magnetic driving mechanism of the present utility model, when making first to assemble coil on the dividing plate of middle level, be conducive to quick position, thus facilitate the assembling of magnetic driving mechanism further, be conducive to the automation and the pile line operation that realize assembling, reduce further cost of manufacture.
By adopting the magnetic driving mechanism that said structure simplifies, volume is little in receiver of the present utility model, thus also make the designs simplification of receiver itself, volume little, and be conducive to industrial automatic assembling and pile line operation, also reduce the cost of manufacture of receiver.
By arranging activity box and fixed frame in receiver of the present utility model, fixed frame is fixedly connected with the sidewall of housing lower shell, activity box is flexibly connected with fixed frame, and vibrating diaphragm is connected on this activity box by shell fragment, the wearing and tearing produced because vibrating diaphragm is directly fixedly connected with the sidewall of housing lower shell can be avoided, extend the useful life of vibrating diaphragm, thus extend the useful life of whole receiver.In addition, because vibrating diaphragm is connected with activity box by shell fragment, this connected mode can be conducive to the oscillating movement of conduction and the vibrating diaphragm vibrated, and improves voice effect and quality.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the structured flowchart of a kind of magnetic driving mechanism of the utility model embodiment 1;
Fig. 2 is the structured flowchart of the magnetic driving mechanism of a kind of preferred implementation of the utility model;
Fig. 3 is the structured flowchart of a kind of magnetic driving mechanism of the utility model embodiment 2;
Fig. 4 is the structured flowchart of a kind of receiver of the utility model embodiment 3;
The vertical view of Tu5Shi Tu4Zhong vibrating diaphragm mechanism.
In figure, Reference numeral is expressed as: 1-U type balanced armature, 2-housing lower shell, 3-middle level dividing plate, 4-first permanent magnet, 5-second permanent magnet, 6-coil, 7-groove, 8-first through hole, 9-second through hole, one end of 11-U type balanced armature, the other end of 12-U type balanced armature, the bottom of 21-housing lower shell, the upper projecting portion of 22-housing lower shell, the lower convex portion of 31-middle level dividing plate, 101-magnetic driving mechanism, 102-conducting power rod, 103-housing upper shell, 104-vibrating diaphragm, 105-shell fragment, 106-activity box, 107-fixed frame, 108-vibrating diaphragm mechanism.
Embodiment
Term " first ", " second " etc. (if existence) in present specification for distinguishing between similar key element, and not necessarily describe specific order or order temporally.Be appreciated that these terms used like this are interchangeable under suitable environment, the embodiment of theme described here can be operated with the order different from the order that those illustrate or with other order described here in this way.
Fig. 1 shows the structured flowchart of a kind of magnetic driving mechanism of embodiment 1, and this magnetic driving mechanism comprises U-shaped balanced armature 1, housing lower shell 2 and middle level dividing plate 3; One end 11 of U-shaped balanced armature 1 is fixedly connected with the bottom 21 of housing lower shell 2, and the other end 12 is unsettled is positioned at the first hollow cavity that middle level dividing plate 3 and housing lower shell 2 surround; Housing lower shell 2 and middle level dividing plate 3, for providing magnetic flux path, can double as the iron core in magnetic driving mechanism.Preferably, the material of above-mentioned housing lower shell 2 and middle level dividing plate 3 all adopts soft magnetic material, such as, and the materials such as silicon steel sheet, soft magnetic ferrite, non-crystaline amorphous metal, permalloy.
By arranging middle level dividing plate in the present embodiment, middle level dividing plate being matched with housing lower shell and can be used for providing magnetic flux path, form closed magnetic circuit, that is middle level dividing plate and housing lower shell are doubled as the iron core in magnetic driving mechanism.And the set-up mode by one end of U-shaped balanced armature is directly fixedly connected with housing lower shell, form magnetic driving mechanism, thus eliminate the iron core of the hollow structure generally adopted in prior art, also abandoned the mode of fixing U-shaped balanced armature with the iron core of hollow structure, thus simplified the structure of magnetic driving mechanism and reduce the volume of magnetic driving mechanism.
Preferably, as shown in Figure 1, above-mentioned magnetic driving mechanism also comprises the first permanent magnet 4, second permanent magnet 5 and coil 6; First permanent magnet 4 is positioned at the upside of the other end 12 of U-shaped balanced armature 1, second permanent magnet 5 is positioned at the downside with the other end 12 of the U-shaped balanced armature 1 of the first permanent magnet 4 relative position, coil 6 is arranged with at the first permanent magnet 4 and the other position closer to U-shaped balanced armature 1 other end 12 end of the second permanent magnet 5, and coil 6 top is fixedly connected with middle level dividing plate 3, be fixedly connected with the bottom of housing lower shell 2 bottom described coil 6.
Fig. 2 shows a kind of structured flowchart of magnetic driving mechanism of preferred implementation, and as shown in Figure 2, the bottom 21 of housing lower shell 2 comprises a groove 7, and one end 11 of U-shaped balanced armature 1 is positioned at groove 7.
By arranging a groove in the bottom of housing lower shell in the present embodiment, one end of U-shaped balanced armature is positioned at this groove, U-shaped balanced armature can be made to be embedded in housing lower shell, thus U-shaped balanced armature volume occupied in the first hollow cavity can be reduced, thus the volume of magnetic driving mechanism can be reduced further, in addition, also because be provided with this groove, when assembling U-shaped balanced armature, be conducive to quick position, greatly facilitate the assembling of magnetic driving mechanism, be conducive to the automation and the pile line operation that realize assembling, thus significantly reduce cost of manufacture.
As shown in Figure 2, middle level dividing plate 3 comprises the first through hole 8, first through hole 8 for penetrating for described first permanent magnet 4.
By arranging the first through hole on the dividing plate of middle level in the present embodiment, make the first permanent magnet can penetrate this first to pass through, thus middle level dividing plate can down be installed to reduce the space shared by the first hollow cavity further, further reduces the volume of magnetic driving mechanism.
As shown in Figure 2, the bottom 21 of housing lower shell 2 comprises upper projecting portion 22, is fixedly connected in upper projecting portion 22 bottom coil 6.
By arranging the first upper projecting portion in the bottom of housing lower shell in the present embodiment, make, when assembling coil, to be conducive to quick position, thus to facilitate the assembling of magnetic driving mechanism further, be conducive to the automation and the pile line operation that realize assembling, reduce further cost of manufacture.
Fig. 3 shows the structured flowchart of a kind of magnetic driving mechanism of embodiment 2, and this magnetic driving mechanism is fixedly connected with the bottom 21 of housing lower shell 2 one end 11 of the U-shaped balanced armature 1 in above-described embodiment 1 to replace with: one end 11 of U-shaped balanced armature 1 is fixedly connected with middle level dividing plate 3.
That is, this magnetic driving mechanism comprises U-shaped balanced armature 1, housing lower shell 2 and middle level dividing plate 3; One end 11 of U-shaped balanced armature 1 is fixedly connected with middle level dividing plate 3, and the other end 12 is unsettled is positioned at the first hollow cavity that middle level dividing plate 3 and housing lower shell 2 surround; Housing lower shell 2 and middle level dividing plate 3, for providing magnetic flux path, can double as the iron core in magnetic driving mechanism.
By one end of U-shaped balanced armature is fixedly connected with middle level dividing plate in the present embodiment, instead of it and be fixedly connected with housing lower shell, thus enrich the installation form of armature in the first hollow cavity.One end due to U-shaped balanced armature fixes with middle level dividing plate, so after can first the parts such as U-shaped balanced armature, the first permanent magnet, coil being installed on the dividing plate of middle level when assembling, integrally be fixed with housing lower shell again and be connected, make the assembling of magnetic driving mechanism more reasonable, more be conducive to the application of industrial streamline, reduce cost of manufacture.
As shown in Figure 3, middle level dividing plate 3 comprises lower convex portion 31, and coil 6 top is fixedly connected on lower convex portion 31.
By arranging lower convex portion on the dividing plate of middle level in the present embodiment, when making first to assemble coil on the dividing plate of middle level, be conducive to quick position, thus facilitate the assembling of magnetic driving mechanism further, be conducive to the automation and the pile line operation that realize assembling, reduce further cost of manufacture.
Preferably, middle level dividing plate 3 also can comprise a groove, and one end 11 of U-shaped balanced armature 1 is positioned at this groove.U-shaped balanced armature can be embedded in the dividing plate of middle level, thus U-shaped balanced armature volume occupied in the first hollow cavity can be reduced, thus can reduce the volume of magnetic driving mechanism further.
Preferably, the bottom 21 of housing lower shell 2 also can comprise upper projecting portion 22, is fixedly connected in upper projecting portion 22 bottom coil 6, thus can fixed coil better.
Fig. 4 shows the structured flowchart of a kind of receiver of embodiment 3, and this receiver comprises the magnetic driving mechanism 101 of above-described embodiment 1 or 2, conducting power rod 102, vibrating diaphragm mechanism 108 and housing upper shell 103.The middle level dividing plate 3 of magnetic driving mechanism 101 also comprises the second through hole 9, and conducting power rod 102 is through the second through hole 9, and one end of conducting power rod 102 is connected with the other end 12 of U-shaped balanced armature 1, and the other end of conducting power rod 102 is connected with vibrating diaphragm mechanism 108.Vibrating diaphragm mechanism 108 is positioned at the second hollow cavity that middle level dividing plate 3 surrounds with housing upper shell 103.
As shown in Figure 4, housing upper shell 103 is a flat board, it will be understood by those of skill in the art that housing upper shell is not limited to be realized by above-mentioned flat board, also can be realized by the cover plate of other structures such as the upper cover such as with lower edge.
As a kind of implementation, the phonate hole of this receiver can be arranged on the sidewall of housing lower shell 2.
By adopting the magnetic driving mechanism that said structure simplifies, volume is little in the present embodiment, thus also make the designs simplification of receiver itself, volume little, and be conducive to industrial automatic assembling and pile line operation, also reduce the cost of manufacture of receiver.
Fig. 5 shows the vertical view of Tu4Zhong vibrating diaphragm mechanism, and as shown in Figures 4 and 5, this vibrating diaphragm mechanism 108 comprises vibrating diaphragm 104, shell fragment 105, activity box 106 and fixed frame 107; Fixed frame 107 is fixedly connected with the sidewall of housing lower shell 2; One side frame of activity box 106 is flexibly connected with fixed frame 107, and the opposite side frame of the activity box 106 relative with this side frame is fixedly connected with the other end of conducting power rod 102; Vibrating diaphragm 104 is connected with activity box 106 by shell fragment 105, and the other end of conducting power rod 102 is connected with activity box 106.Preferably, as shown in Figure 5, shell fragment 105 is four, lays respectively on four angles of vibrating diaphragm 104, edge in the inside casing that every a slice shell fragment is connected to the outer at a vibrating diaphragm angle and an angle of activity box.It will be understood by those of skill in the art that vibrating diaphragm mechanism is not limited to be realized by the vibrating diaphragm mechanism of above-mentioned concrete structure, also other vibrating diaphragm mechanisms be connected with shell can be provided to realize by being embodied as vibrating diaphragm.
By arranging activity box and fixed frame in the present embodiment, fixed frame is fixedly connected with the sidewall of housing lower shell, activity box is flexibly connected with fixed frame, and vibrating diaphragm is connected on this activity box by shell fragment, the wearing and tearing produced because vibrating diaphragm is directly fixedly connected with the sidewall of housing lower shell can be avoided, extend the useful life of vibrating diaphragm, thus extend the useful life of whole receiver.In addition, because vibrating diaphragm is connected with activity box by shell fragment, this connected mode can be conducive to the oscillating movement of conduction and the vibrating diaphragm vibrated, and improves voice effect and quality.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range that the utility model creates.
Claims (10)
1. a magnetic driving mechanism, is characterized in that, comprises U-shaped balanced armature (1), housing lower shell (2) and middle level dividing plate (3);
One end (11) of described U-shaped balanced armature (1) is fixedly connected with the bottom (21) of housing lower shell (2), and the other end (12) is unsettled is positioned at the first hollow cavity that described middle level dividing plate (3) and housing lower shell (2) surround;
Described housing lower shell (2) and middle level dividing plate (3) are for providing magnetic flux path.
2. magnetic driving mechanism according to claim 1, it is characterized in that, the bottom (21) of described housing lower shell (2) comprises a groove (7), and one end (11) of described U-shaped balanced armature (1) is positioned at described groove (7).
3. magnetic driving mechanism according to claim 1, is characterized in that, also comprises the first permanent magnet (4), the second permanent magnet (5) and coil (6);
Described first permanent magnet (4) is positioned at the upside of the other end (12) of described U-shaped balanced armature (1), described second permanent magnet (5) is positioned at the downside with the other end (12) of the described U-shaped balanced armature (1) of described first permanent magnet (4) relative position, described coil (6) is arranged with described first permanent magnet (4) and the other position closer to described U-shaped balanced armature (1) other end (12) end of the second permanent magnet (5), and described coil (6) top is fixedly connected with described middle level dividing plate (3), described coil (6) bottom is fixedly connected with the bottom of described housing lower shell (2).
4. magnetic driving mechanism according to claim 3, is characterized in that, described middle level dividing plate (3) comprises the first through hole (8), and described first through hole (8) is for penetrating for described first permanent magnet (4).
5. magnetic driving mechanism according to claim 3, it is characterized in that, the bottom (21) of described housing lower shell (2) comprises a upper projecting portion (22), and described coil (6) bottom is fixedly connected in described upper projecting portion (22).
6. magnetic driving mechanism according to claim 1, is characterized in that, the material of described housing lower shell (2) and middle level dividing plate (3) all adopts soft magnetic material.
7. magnetic driving mechanism according to claim 3, is characterized in that, one end (11) of described U-shaped balanced armature (1) is fixedly connected with the bottom (21) of housing lower shell (2) and replaces with:
One end (11) of described U-shaped balanced armature (1) is fixedly connected with described middle level dividing plate (3).
8. magnetic driving mechanism according to claim 7, it is characterized in that, described middle level dividing plate (3) comprises a lower convex portion (31), and described coil (6) top is fixedly connected on described lower convex portion (31).
9. a receiver, is characterized in that, comprises the arbitrary described magnetic driving mechanism (101) of claim 1-8, conducting power rod (102), vibrating diaphragm mechanism (108) and housing upper shell (103);
The middle level dividing plate (3) of described magnetic driving mechanism (101) also comprises the second through hole (9), described conducting power rod (102) is through described second through hole (9), one end of described conducting power rod (102) is connected with the other end (12) of described U-shaped balanced armature (1), and the other end of described conducting power rod (102) is connected with described vibrating diaphragm mechanism (108);
Described vibrating diaphragm mechanism is positioned at the second hollow cavity that described middle level dividing plate (3) surrounds with described housing upper shell (103).
10. receiver according to claim 9, is characterized in that, described vibrating diaphragm mechanism (108) comprises vibrating diaphragm (104), shell fragment (105), activity box (106) and fixed frame (107);
Described fixed frame (107) is fixedly connected with the sidewall of housing lower shell (2);
One side frame of described activity box (106) is flexibly connected with described fixed frame (107), and the opposite side frame of the described activity box (106) relative with a described side frame is fixedly connected with the other end of described conducting power rod (102);
Described vibrating diaphragm (104) is connected with described activity box (106) by shell fragment (105), and the other end of described conducting power rod (102) is connected with described activity box (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522055.9U CN204906682U (en) | 2015-07-17 | 2015-07-17 | Magnetic drive mechanism and including this magnetic drive mechanism's receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522055.9U CN204906682U (en) | 2015-07-17 | 2015-07-17 | Magnetic drive mechanism and including this magnetic drive mechanism's receiver |
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| Publication Number | Publication Date |
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| CN204906682U true CN204906682U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520522055.9U Expired - Fee Related CN204906682U (en) | 2015-07-17 | 2015-07-17 | Magnetic drive mechanism and including this magnetic drive mechanism's receiver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105187987A (en) * | 2015-07-17 | 2015-12-23 | 张晋良 | Magnetic driving mechanism and receiver comprising same |
| CN107920291A (en) * | 2017-07-25 | 2018-04-17 | 苏州逸巛声学科技有限公司 | A kind of receiver and its assembly method |
-
2015
- 2015-07-17 CN CN201520522055.9U patent/CN204906682U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105187987A (en) * | 2015-07-17 | 2015-12-23 | 张晋良 | Magnetic driving mechanism and receiver comprising same |
| CN105187987B (en) * | 2015-07-17 | 2019-03-15 | 张晋良 | A kind of magnetic driving mechanism and the receiver including the magnetic driving mechanism |
| CN107920291A (en) * | 2017-07-25 | 2018-04-17 | 苏州逸巛声学科技有限公司 | A kind of receiver and its assembly method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20190717 |