CN214851804U - Miniature loudspeaker with double-sided sounding function - Google Patents
Miniature loudspeaker with double-sided sounding function Download PDFInfo
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- CN214851804U CN214851804U CN202120570330.XU CN202120570330U CN214851804U CN 214851804 U CN214851804 U CN 214851804U CN 202120570330 U CN202120570330 U CN 202120570330U CN 214851804 U CN214851804 U CN 214851804U
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Abstract
The utility model discloses a miniature loudspeaker with double-sided sounding, which comprises a magnetic steel component and a vibration component, wherein the vibration component comprises a first voice coil and a second voice coil, the magnetic steel component comprises a first magnetic steel and a second magnetic steel which are connected, one side of the first magnetic steel, which is far away from the second magnetic steel, is provided with a first groove, at least one part of the first voice coil is positioned in the first groove, one side of the second magnetic steel, which is far away from the first magnetic steel, is provided with a second groove, and at least one part of the second voice coil is positioned in the second groove; the first magnetic steel and the second magnetic steel form a magnetic steel assembly, and the first magnetic steel and the second magnetic steel can be selected to be matched and assembled according to the specific structures of different speakers, so that the structural diversity is enriched, and the structural applicability is enhanced; the setting of magnetic shield has been cancelled, can increase magnet steel component's overall height under the prerequisite that does not change this two-sided vocal miniature speaker overall height, can increase the utilization ratio of magnetic property simultaneously, does benefit to the promotion of acoustic performance.
Description
Technical Field
The utility model relates to an acoustics device technical field especially relates to a miniature speaker of two-sided sound production.
Background
In recent years, consumer electronic products such as mobile phones and tablet computers are popular with consumers, and with the development of related technologies of electronic products, in order to meet the use requirements of consumers, a loudspeaker capable of generating sound from two sides appears, and two sound generating units are overlapped and combined in a back-to-back mode through the loudspeaker capable of generating sound from two sides, namely a magnetic cover and a magnetic cover are attached together;
however, with the trend of miniaturization of the speaker, the size of the speaker becomes thinner and thinner, which limits the overall height of the speaker capable of generating sound on both sides, so that the height of the magnetic circuit assembly cannot be increased, and even the height of the magnetic circuit assembly needs to be reduced to meet the overall size requirement of the speaker, which undoubtedly limits the acoustic performance of the speaker capable of generating sound on both sides.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a double-sided sounding micro-speaker with good acoustic performance is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a miniature speaker of two-sided sound production, includes magnet steel component and vibration subassembly, the vibration subassembly includes first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil, magnet steel component includes continuous first magnet steel and second magnet steel, first magnet steel is kept away from first recess has been seted up to one side of second magnet steel, at least part of first voice coil loudspeaker voice coil is located in the first recess, the second magnet steel is kept away from the second recess has been seted up to one side of first magnet steel, at least part of second voice coil loudspeaker voice coil is located in the second recess.
Further, the vibration component further comprises a first vibrating diaphragm connected with the first voice coil and a second vibrating diaphragm connected with the second voice coil.
Further, still include first basin frame and second basin frame, first basin frame with first vibrating diaphragm and first magnet steel is connected, second basin frame with second vibrating diaphragm and second magnet steel is connected.
Furthermore, a first edge washer connected with the first magnetic steel is arranged on the first basin frame, and a second edge washer connected with the second magnetic steel is arranged on the second basin frame.
Further, the first magnetic steel comprises a first central magnetic part, a first connecting part and a plurality of first side magnetic parts, and the first side magnetic parts are connected with the first central magnetic part through the first connecting part; the second magnetic steel comprises a second central magnetic part, a second connecting part and a plurality of second edge magnetic parts, and the second edge magnetic parts are connected with the second central magnetic part through the second connecting part; the first central magnetic portion is connected with the second central magnetic portion.
Further, the number of the first side magnetic parts and/or the second side magnetic parts is two.
Further, the number of the first side magnetic parts and/or the second side magnetic parts is four.
Furthermore, the first central magnetic part is provided with a first central washer, and the second central magnetic part is provided with a second central washer.
Furthermore, the first magnetic steel is convexly provided with a first positioning part, and the second magnetic steel is concavely provided with a first positioning groove matched with the first positioning part.
Furthermore, a second positioning portion is arranged on the second magnetic steel in a protruding mode, a second positioning groove matched with the second positioning portion is arranged on the first magnetic steel in a protruding mode, and the volume of the first positioning portion is equal to that of the second positioning portion.
The beneficial effects of the utility model reside in that: the utility model provides a two-sided vocal micro-speaker has the characteristics of strong applicability and good acoustic performance; the first magnetic steel and the second magnetic steel form a magnetic steel assembly, the structures of the first magnetic steel and the second magnetic steel can be arranged according to actual application requirements, and the first magnetic steel and the second magnetic steel are selected to be matched and assembled according to the specific structures of different speakers, so that the structural diversity is enriched, and the structural applicability is enhanced; the setting of magnetic shield has been cancelled, can increase magnet steel component's overall height under the prerequisite that does not change this two-sided vocal miniature speaker overall height, can increase the utilization ratio of magnetic property simultaneously, does benefit to the promotion of acoustic performance.
Drawings
Fig. 1 is an exploded view of a dual-sided miniature speaker according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of a dual-sided sounding micro speaker according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a possible internal structure of a dual-surface sounding micro-speaker according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another possible internal structure of a dual-surface sounding micro-speaker according to an embodiment of the present invention;
fig. 5 is a schematic view of a partial cross-sectional structure of a dual-sided sounding micro-speaker according to an embodiment of the present invention.
Description of reference numerals:
1. a magnetic steel component; 11. a first magnetic steel; 111. a first central magnetic portion; 112. a first side magnetic part; 113. a first connection portion; 114. a first groove; 115. a first positioning portion; 12. a second magnetic steel; 121. a second central magnetic portion; 122. a second edge magnetic part; 123. a second connecting portion; 124. a second groove; 125. a second positioning portion; 2. a first voice coil; 3. a second voice coil; 4. a first diaphragm; 5. a second diaphragm; 6. a first frame; 61. a first curb washer; 7. a second frame; 71. a second border washer; 8. a first central washer; 9. second central washer.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 5, a dual-sided sounding micro speaker includes a magnetic steel assembly 1 and a vibration assembly, where the vibration assembly includes a first voice coil 2 and a second voice coil 3, the magnetic steel assembly 1 includes a first magnetic steel 11 and a second magnetic steel 12 connected to each other, a first groove 114 is formed in a side of the first magnetic steel 11 away from the second magnetic steel 12, at least a portion of the first voice coil 2 is located in the first groove 114, a second groove 124 is formed in a side of the second magnetic steel 12 away from the first magnetic steel 11, and at least a portion of the second voice coil 3 is located in the second groove 124.
It should be noted that, in prior art, the speaker of two-sided sound production is generally with the magnetic shield back to back superposition combination of two sound production monomers together, and this can make the holistic thickness of speaker increase undoubtedly, and the magnetic shield itself can occupy most space, has restricted the promotion of the inside center magnet steel of speaker and the volume of limit magnet steel.
From the above description, the beneficial effects of the present invention are: the first magnetic steel 11 and the second magnetic steel 12 form a magnetic steel assembly 1, the structures of the first magnetic steel 11 and the second magnetic steel 12 can be set according to actual application requirements, and the first magnetic steel 11 and the second magnetic steel 12 are selected to be matched and assembled according to the specific structures of different speakers, so that the structural diversity is enriched, and the structural applicability is enhanced; the setting of magnetic shield has been cancelled, can increase magnet steel component 1's whole height under the prerequisite that does not change this two-sided vocal miniature speaker overall height, can increase the utilization ratio of magnetic property simultaneously, does benefit to the promotion of acoustic performance.
Further, the vibration assembly further comprises a first diaphragm 4 connected with the first voice coil 2 and a second diaphragm 5 connected with the second voice coil 3.
As can be seen from the above description, the first diaphragm 4 vibrates along with the first voice coil 2 and outputs sound to one side of the double-sided miniature speaker, and the second diaphragm 5 vibrates along with the second voice coil 3 and outputs sound to the other side of the double-sided miniature speaker.
Further, still include first basin frame 6 and second basin frame 7, first basin frame 6 with first vibrating diaphragm 4 and first magnet steel 11 is connected, second basin frame 7 with second vibrating diaphragm 5 and second magnet steel 12 is connected.
As can be seen from the above description, the first frame 6 is used to mount the first diaphragm 4 to ensure the working stability of the first voice coil 2 and the first diaphragm 4, and the second frame 7 is used to mount the second diaphragm 5 to ensure the working stability of the second voice coil 3 and the second diaphragm 5.
Further, a first edge washer 61 connected with the first magnetic steel 11 is arranged on the first frame 6, and a second edge washer 71 connected with the second magnetic steel 12 is arranged on the second frame 7.
As can be seen from the above description, the first side washer 61 and the second side washer 71 can play a role in magnetic conduction and magnetic line correction, and are beneficial to the improvement of the acoustic performance of the double-sided sound speaker.
Further, the first magnetic steel 11 includes a first central magnetic portion 111, a first connection portion 113, and a plurality of first side magnetic portions 112, and the first side magnetic portions 112 are connected to the first central magnetic portion 111 through the first connection portion 113; the second magnetic steel 12 includes a second central magnetic part 121, a second connecting part 123 and a plurality of second side magnetic parts 122, and the second side magnetic parts 122 are connected to the second central magnetic part 121 through the second connecting part 123; the first central magnetic portion 111 is connected to the second central magnetic portion 121.
As can be seen from the above description, the magnetic steel component 1 has a simple structure, is convenient to machine and form, and is beneficial to reducing the production cost.
Further, the number of the first magnetic edge portions 112 and/or the second magnetic edge portions 122 is two.
Further, the number of the first side magnetic parts 112 and/or the second side magnetic parts 122 is four.
As can be seen from the above description, the number of the first magnetic edge portions 112 and the second magnetic edge portions 122 can be set according to the actual application requirements.
Further, the first central magnetic portion 111 is provided with a first central washer 8, and the second central magnetic portion 121 is provided with a second central washer 9.
It can be known from the above description that the center washer can play the roles of magnetic conduction and magnetic line correction, and is beneficial to the improvement of the acoustic performance of the double-sided sounding loudspeaker.
Further, the first magnetic steel 11 is convexly provided with a first positioning portion 115, and the second magnetic steel 12 is concavely provided with a first positioning groove matched with the first positioning portion 115.
As can be seen from the above description, the first positioning portion 115 is matched with the first positioning groove, so as to position the connection between the first magnetic steel 11 and the second magnetic steel 12, ensure the connection accuracy between the first magnetic steel 11 and the second magnetic steel 12, and ensure the working stability of the dual-sided sounding micro speaker.
Further, a second positioning portion 125 is convexly disposed on the second magnetic steel 12, a second positioning groove adapted to the second positioning portion 125 is concavely disposed on the first magnetic steel 11, and the volumes of the first positioning portion 115 and the second positioning portion 125 are equal.
As can be seen from the above description, the second positioning portion 125 is matched with the second positioning groove, so as to further enhance the connection accuracy between the first magnetic steel 11 and the second magnetic steel 12, and meanwhile, the volume of the first positioning portion 115 is equal to that of the second positioning portion 125, so as to improve the connection accuracy between the first magnetic steel 11 and the second magnetic steel 12 on the premise of not reducing the overall volume of the first magnetic steel 11 and the second magnetic steel 12.
Example one
Referring to fig. 1 to 4, a first embodiment of the present invention is: a miniature loudspeaker with double-sided sounding comprises a magnetic steel component 1 and a vibration component, wherein the vibration component comprises a first voice coil 2 and a second voice coil 3, the magnetic steel component 1 comprises a first magnetic steel 11 and a second magnetic steel 12 which are connected, and in the embodiment, the first magnetic steel 11 is connected with the second magnetic steel 12 in an adhesive manner; a first groove 114 is formed in one side of the first magnetic steel 11, which is far away from the second magnetic steel 12, at least one part of the first voice coil 2 is located in the first groove 114, a second groove 124 is formed in one side of the second magnetic steel 12, which is far away from the first magnetic steel 11, and at least one part of the second voice coil 3 is located in the second groove 124; specifically, first magnet steel 11 with second magnet steel 12 is integrated into one piece's integral type structure, first recess 114 is in form first magnetic gap on the first magnet steel 11, second recess 124 is in form second magnetic gap on the second magnet steel 12, first voice coil loudspeaker voice coil 2 is in vibration in the first magnetic gap, second voice coil loudspeaker voice coil 3 is in vibration in the second magnetic gap to do cutting magnetism respectively and feel linear motion, thereby convert the signal of telecommunication into sound signal and export.
Preferably, the vibration assembly further includes a first diaphragm 4 connected to the first voice coil 2 and a second diaphragm 5 connected to the second voice coil 3 (as shown in fig. 1), the first diaphragm 4 vibrates following the first voice coil 2 and outputs sound to one side of the double-sided miniature speaker (as shown in fig. 2), and the second diaphragm 5 vibrates following the second voice coil 3 and outputs sound to the other side of the double-sided miniature speaker (as shown in fig. 2).
Specifically, please refer to fig. 1 and 2, the dual-side speaker further includes a first frame 6 and a second frame 7, the first frame 6 is connected to the first diaphragm 4 and the first magnetic steel 11, the second frame 7 is connected to the second diaphragm 5 and the second magnetic steel 12, which is easy to understand, the first frame 6 and the second frame 7 are convenient for installing the vibration component, so as to ensure the working stability of the vibration component.
Referring to fig. 1 and fig. 2, in this embodiment, the first magnetic steel 11 includes a first central magnetic portion 111, a first connecting portion 113, and a plurality of first side magnetic portions 112, and the first side magnetic portions 112 are connected to the first central magnetic portion 111 through the first connecting portion 113; the second magnetic steel 12 includes a second central magnetic part 121, a second connecting part 123 and a plurality of second side magnetic parts 122, and the second side magnetic parts 122 are connected to the second central magnetic part 121 through the second connecting part 123; the first central magnetic part 111 is connected with the second central magnetic part 121;
specifically, a first edge washer 61 connected with the first magnetic steel 11 is arranged on the first frame 6, and a second edge washer 71 connected with the second magnetic steel 12 is arranged on the second frame 7; more specifically, the first edge washer 61 is connected to the first edge magnet part 112, and the second edge washer 71 is connected to the second edge magnet part 122; further, the first central magnetic part 111 is provided with a first central washer 8, and the second central magnetic part 121 is provided with a second central washer 9; it is easy to understand that the first side washer 61 is correspondingly matched with the first center washer 8, and the second side washer 71 is correspondingly matched with the second center washer 9, so that the functions of magnetic conduction and magnetic line force correction can be achieved (as shown in fig. 3 and 4), and the improvement of the acoustic performance of the double-sided sounding loudspeaker is facilitated; optionally, the first central washer 8, the second central washer 9, the first side washer 61 and the second side washer 71 may be SPCC (generally, cold-rolled carbon steel sheet and steel strip) or SPCE (cold-rolled carbon steel sheet and steel strip for deep drawing) with good magnetic permeability, and are preferably SPCE.
Optionally, the number of the first side magnetic parts 112 and/or the second side magnetic parts 122 is two, so that a three-magnetic-circuit structure can be formed, or the number of the first side magnetic parts 112 and/or the second side magnetic parts 122 is four, so that a five-magnetic-circuit structure can be formed; the number of the first magnetic edge portions 112 and the second magnetic edge portions 122 can be set according to the actual application requirement.
Example two
Referring to fig. 5, the second embodiment of the present invention is a further improvement of the magnetic steel assembly 1 on the basis of the first embodiment, and the difference from the first embodiment lies in: first magnet steel 11 is protruding to be equipped with first positioning portion 115, second magnet steel 12 go up the concave first constant head tank with first positioning portion 115 looks adaptation, easily understand, first positioning portion 115 with first constant head tank cooperatees, can be right first magnet steel 11 with second magnet steel 12's connection is fixed a position, ensures first magnet steel 11 with the accuracy that second magnet steel 12 is connected has ensured the stability of this two-sided vocal micro loudspeaker work.
In this embodiment, the second positioning portion 125 is convexly disposed on the second magnetic steel 12, the second positioning groove adapted to the second positioning portion 125 is concavely disposed on the first magnetic steel 11, the first positioning portion 115 and the second positioning portion 125 have the same size, which is easy to understand, the second positioning portion 125 and the second positioning groove are matched with each other, so as to further enhance the connection accuracy between the first magnetic steel 11 and the second magnetic steel 12, and meanwhile, the connection accuracy between the first magnetic steel 11 and the second magnetic steel 12 can be improved on the premise that the overall sizes of the first magnetic steel 11 and the second magnetic steel 12 are not reduced because the volumes of the first positioning portion 115 and the second positioning portion 125 are equal to each other.
Optionally, the first positioning portion 115 and the second positioning portion 125 may be cylindrical, pyramidal, or prismatic, and may be specifically configured according to practical application requirements.
To sum up, the double-sided sounding micro-speaker provided by the utility model has the characteristics of strong applicability and good acoustic performance; the first magnetic steel and the second magnetic steel form a magnetic steel assembly, the structures of the first magnetic steel and the second magnetic steel can be arranged according to actual application requirements, and the first magnetic steel and the second magnetic steel are selected to be matched and assembled according to the specific structures of different speakers, so that the structural diversity is enriched, and the structural applicability is enhanced; the magnetic cover is omitted, the overall height of the magnetic steel component can be increased on the premise of not changing the overall height of the double-sided sounding micro-speaker, and meanwhile, the utilization rate of magnetic performance can be increased, and the improvement of acoustic performance is facilitated; set up first location portion and second location portion on first magnet steel and second magnet steel, strengthened the accuracy of first magnet steel and second magnet steel hookup location, the volume that sets up first location portion simultaneously and second location portion equals, can not reduce first magnet steel and under the prerequisite of the whole volume of second magnet steel, promote first magnet steel with the accuracy of second magnet steel hookup location.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a miniature speaker of two-sided sound production, includes magnet steel component and vibration subassembly, the vibration subassembly includes first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil, a serial communication port, magnet steel component includes continuous first magnet steel and second magnet steel, first magnet steel is kept away from first recess has been seted up to one side of second magnet steel, at least a part of first voice coil loudspeaker voice coil is located in the first recess, the second magnet steel is kept away from the second recess has been seted up to one side of first magnet steel, at least a part of second voice coil loudspeaker voice coil is located in the second recess.
2. The dual-sided acoustic micro-speaker of claim 1, wherein the vibration assembly further comprises a first diaphragm coupled to the first voice coil and a second diaphragm coupled to the second voice coil.
3. The dual-sided miniature loudspeaker of claim 2, further comprising a first frame and a second frame, wherein the first frame is connected to the first diaphragm and the first magnetic steel, and the second frame is connected to the second diaphragm and the second magnetic steel.
4. The miniature loudspeaker of claim 3, wherein said first frame has a first edge washer connected to said first magnetic steel, and said second frame has a second edge washer connected to said second magnetic steel.
5. The dual-sided acoustic micro-speaker of claim 1, wherein the first magnetic steel comprises a first central magnetic portion, a first connecting portion and a plurality of first side magnetic portions, and the first side magnetic portions are connected to the first central magnetic portion through the first connecting portion; the second magnetic steel comprises a second central magnetic part, a second connecting part and a plurality of second edge magnetic parts, and the second edge magnetic parts are connected with the second central magnetic part through the second connecting part; the first central magnetic portion is connected with the second central magnetic portion.
6. The dual-sided miniature loudspeaker of claim 5, wherein the number of said first magnetic edge portions and/or said second magnetic edge portions is two.
7. The dual-sided acoustic micro-speaker of claim 5, wherein the number of the first side magnetic portions and/or the second side magnetic portions is four.
8. The dual-sided miniature loudspeaker of claim 5 wherein the first central magnetic portion is provided with a first central washer and the second central magnetic portion is provided with a second central washer.
9. The dual-sided miniature loudspeaker of claim 1, wherein the first magnetic steel has a first positioning portion protruding therefrom, and the second magnetic steel has a first positioning groove recessed therein, the first positioning groove being adapted to the first positioning portion.
10. The dual-sided acoustic micro-speaker of claim 9, wherein the second magnetic steel is provided with a second positioning portion protruding upward, the first magnetic steel is provided with a second positioning groove protruding upward, the second positioning groove being adapted to the second positioning portion, and the first positioning portion and the second positioning portion have the same volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120570330.XU CN214851804U (en) | 2021-03-19 | 2021-03-19 | Miniature loudspeaker with double-sided sounding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120570330.XU CN214851804U (en) | 2021-03-19 | 2021-03-19 | Miniature loudspeaker with double-sided sounding function |
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| Publication Number | Publication Date |
|---|---|
| CN214851804U true CN214851804U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120570330.XU Active CN214851804U (en) | 2021-03-19 | 2021-03-19 | Miniature loudspeaker with double-sided sounding function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115633296A (en) * | 2022-12-23 | 2023-01-20 | 共达电声股份有限公司 | Loudspeaker and magnetic circuit structure thereof |
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2021
- 2021-03-19 CN CN202120570330.XU patent/CN214851804U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115633296A (en) * | 2022-12-23 | 2023-01-20 | 共达电声股份有限公司 | Loudspeaker and magnetic circuit structure thereof |
| CN115633296B (en) * | 2022-12-23 | 2023-04-18 | 共达电声股份有限公司 | Loudspeaker and magnetic circuit structure thereof |
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