CN215420747U - Novel voice coil loudspeaker voice coil, vibration subassembly and miniature speaker - Google Patents
Novel voice coil loudspeaker voice coil, vibration subassembly and miniature speaker Download PDFInfo
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- CN215420747U CN215420747U CN202120652020.2U CN202120652020U CN215420747U CN 215420747 U CN215420747 U CN 215420747U CN 202120652020 U CN202120652020 U CN 202120652020U CN 215420747 U CN215420747 U CN 215420747U
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Abstract
The utility model discloses a novel voice coil, which comprises a first voice coil and a second voice coil which are connected, wherein the first voice coil is positioned above the second voice coil, the first voice coil is formed by winding a first wire rod, the second voice coil is formed by winding a second wire rod, the density of the first wire rod is smaller than that of the second wire rod, and the cross section of the first wire rod and the cross section of the second wire rod are respectively rectangular; according to the novel voice coil, the vibration assembly and the micro loudspeaker, the first voice coil and the second voice coil are arranged, and the first voice coil is wound by adopting the wire made of lighter material, so that the weight of the novel voice coil is effectively reduced, and the acoustic performance of the novel voice coil is improved; first coil and second coil all adopt the wire rod of cross section personally submitting the rectangle, can reduce the clearance between the wire rod effectively, increase the total length of novel voice coil loudspeaker voice coil in the magnetic gap, have further improved the acoustic performance of novel voice coil loudspeaker voice coil.
Description
Technical Field
The utility model relates to the technical field of speakers, in particular to a novel voice coil, a vibration assembly and a micro speaker.
Background
With the development of society, micro speakers as an electroacoustic transducer have been widely used in microelectronic devices such as smart phones, camcorders, cameras, and notebook computers.
With the increasing requirements of micro-speakers, the product amplitude of the present large-amplitude micro-speaker has been increased from 0.28mm to 0.65 mm.
The increase of the amplitude requires a strong driving force, which is usually achieved by increasing the total length of the voice coil in the magnetic gap, but the voice coil as a driving member inevitably increases its own weight while increasing its total length, resulting in a decrease in performance sensitivity and thus a decrease in acoustic performance of the micro-speaker.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: provided are a novel voice coil, a vibration module, and a micro-speaker having excellent acoustic performance.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a novel voice coil loudspeaker voice coil, includes continuous first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil, first voice coil loudspeaker voice coil is located second voice coil loudspeaker voice coil top, first voice coil loudspeaker voice coil is formed by first wire rod coiling, the second voice coil loudspeaker voice coil is formed by second wire rod coiling, the density of first wire rod is less than the density of second wire rod, the cross section of first wire rod with the cross section of second wire rod is the rectangle respectively.
Further, the height of the first voice coil is smaller than or equal to the height of the second voice coil.
Further, the thickness of the first voice coil is smaller than or equal to the thickness of the second voice coil.
Furthermore, the single-sided section of the first voice coil comprises a plurality of cross sections of the first wire, the single-sided section of the second wire comprises a plurality of cross sections of the second wire, the top sides of the cross sections in the same layer in the first voice coil are collinear, and the side edges of the same side of the cross sections in the same column are collinear; the top edges of all the cross sections in the same layer in the second voice coil are collinear, and the side edges of the same side of all the cross sections in the same column are collinear.
Furthermore, the corners of the cross section of each first wire in the unilateral section of the first voice coil are respectively provided with a chamfer, and the chamfers of the cross sections of the adjacent four first wires form a quadrilateral notch.
Furthermore, the top of the outer side of the first voice coil is provided with an adhesive part.
Further, the first voice coil is bonded with the second voice coil.
In order to solve the technical problems, the utility model also adopts the following technical scheme: vibration subassembly, including above-mentioned novel voice coil loudspeaker voice coil.
In order to solve the technical problems, the utility model also adopts the following technical scheme: a micro speaker comprises the novel voice coil.
The utility model has the beneficial effects that: the voice coil comprises a first voice coil and a second voice coil, wherein the first voice coil serving as a framework adopts a first wire with lower density, so that the weight of the novel voice coil can be effectively reduced, and the performance sensitivity is improved; the first wire and the second wire are both wires with rectangular cross sections, so that gaps among the wires can be effectively reduced, the space utilization rate is improved, the total length of the voice coil in the magnetic gap is increased, the loudness and sensitivity of the micro-speaker are further improved, and the acoustic performance of the micro-speaker is greatly optimized.
Drawings
Fig. 1 is a schematic view of a novel voice coil according to a first embodiment of the present invention;
fig. 2 is a cross-sectional view of a micro-speaker according to a second embodiment of the present invention.
Description of reference numerals:
1. a first voice coil; 2. a second voice coil; 3. a quadrilateral notch;
4. an adhesive portion; 5. a basin stand; 6. vibrating diaphragm;
7. a magnetic circuit assembly.
Detailed Description
In order to explain technical contents, achieved objects, and 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 and 2, a novel voice coil includes a first voice coil 1 and a second voice coil 2 connected to each other, the first voice coil 1 is located above the second voice coil 2, the first voice coil 1 is formed by winding a first wire, the second voice coil 2 is formed by winding a second wire, the density of the first wire is smaller than that of the second wire, and the cross section of the first wire and the cross section of the second wire are rectangular.
From the above description, the beneficial effects of the present invention are: the voice coil comprises a first voice coil 1 and a second voice coil 2, wherein the first voice coil 1 serving as a framework adopts a first wire with lower density, so that the weight of the novel voice coil can be effectively reduced, and the performance sensitivity is improved; the first wire and the second wire are both wires with rectangular cross sections, so that gaps among the wires can be effectively reduced, the space utilization rate is improved, the total length of the voice coil in the magnetic gap is increased, the loudness and sensitivity of the micro-speaker are further improved, and the acoustic performance of the micro-speaker is greatly optimized.
Further, the height of the first voice coil 1 is less than or equal to the height of the second voice coil 2.
As can be seen from the above description, the height of the first voice coil 1 is less than or equal to the height of the second voice coil 2, so that the second voice coil 2 can have a larger total length in the magnetic gap, which is beneficial to improving the acoustic performance of the micro-speaker.
Further, the thickness of the first voice coil 1 is smaller than or equal to the thickness of the second voice coil 2.
As can be seen from the above description, the thickness of the first voice coil 1 is less than or equal to the thickness of the second voice coil 2, which can further reduce the weight of the first voice coil 1, thereby reducing the total weight of the novel voice coil.
Further, the single-sided section of the first voice coil 1 comprises a plurality of cross sections of the first wire, the single-sided section of the second wire comprises a plurality of cross sections of the second wire, the top sides of the cross sections in the same layer in the first voice coil 1 are collinear, and the same-side edges of the cross sections in the same column are collinear; the top sides of the cross sections in the second voice coil 2 located in the same layer are collinear, and the side edges of the same side of each cross section in the same column are collinear.
As can be seen from the above description, the top edges of the cross sections are arranged in a collinear manner, which is beneficial to ensuring the flatness of the bonding surfaces between the first voice coil 1 and the diaphragm assembly and between the second voice coil 2 and the diaphragm assembly, improving the bonding strength between the first voice coil 1 and the diaphragm assembly, and avoiding the voice coils from falling off due to external force; the same side edge of the cross section is collinear, so that the first wire and the second wire and the gap between the first wire and the second wire are further reduced, and the space utilization rate is improved.
Furthermore, the corners of the cross section of each first wire in the single-side cross section of the first voice coil 1 are respectively provided with a chamfer, and the chamfers of the cross sections of the adjacent four first wires form a quadrilateral notch 3.
As can be seen from the above description, the four adjacent chamfers with cross sections form a quadrilateral gap 3, that is, the chamfers between the four adjacent layers of the first wires and/or the second wires are connected to form a cavity, and the cavity can be used as a glue accommodating cavity and a deformation cavity.
Further, an adhesive part 4 is arranged at the top of the outer side of the first voice coil 1.
As can be seen from the above description, the adhesive part 4 is disposed on the top of the outer side of the first voice coil 1, which can effectively increase the adhesive area between the voice coil and the diaphragm assembly in the micro-speaker, and enhance the adhesive strength between the voice coil and the diaphragm assembly.
Further, the first voice coil 1 is bonded to the second voice coil 2.
It can be known from the above description that first voice coil loudspeaker voice coil 1 bonds with second voice coil loudspeaker voice coil 2, can strengthen first voice coil loudspeaker voice coil 1 and second voice coil loudspeaker voice coil 2's joint strength, prevents both to break away from because of external force, has improved the structural stability of novel voice coil loudspeaker voice coil.
A vibration assembly comprises the novel voice coil.
A micro-speaker comprises the novel voice coil.
Example one
Referring to fig. 1, a first embodiment of the present invention is: the utility model provides a novel voice coil loudspeaker voice coil, includes continuous first voice coil loudspeaker voice coil 1 and second voice coil loudspeaker voice coil 2, first voice coil loudspeaker voice coil 1 is located 2 tops of second voice coil loudspeaker voice coil, it is preferred, first voice coil loudspeaker voice coil 1 with second voice coil loudspeaker voice coil 2 bonds, first voice coil loudspeaker voice coil 1 is the skeleton voice coil loudspeaker voice coil, second voice coil loudspeaker voice coil 2 is the work voice coil loudspeaker voice coil, first voice coil loudspeaker voice coil 1 is formed by first wire rod coiling, second voice coil loudspeaker voice coil 2 is formed by the coiling of second wire rod, the density of first wire rod is less than the density of second wire rod, first wire rod adopts materials such as aluminium enameled wire or copper clad aluminium enameled wire lighter wire, the cross section of first wire rod with the cross section of second wire rod is the rectangle respectively.
As shown in fig. 1, the height of the first voice coil 1 is less than or equal to the height of the second voice coil 2, in this embodiment, the height of the first voice coil 1 is less than the height of the second voice coil 2; the thickness of first voice coil loudspeaker voice coil 1 is less than or equal to the thickness of second voice coil loudspeaker voice coil 2, the distance between the inner wall of the unilateral cross section of first voice coil loudspeaker voice coil 1 to the outer wall is the thickness of first voice coil loudspeaker voice coil 1, and similarly, the distance between the inner wall of the unilateral cross section of second voice coil loudspeaker voice coil 2 to the outer wall is the thickness of second voice coil loudspeaker voice coil 2, in this embodiment, the thickness of first voice coil loudspeaker voice coil 1 with the thickness of second voice coil loudspeaker voice coil 2 equals.
Referring to fig. 1, the single-sided section of the first voice coil 1 includes cross sections of a plurality of the first wires, the single-sided section of the second wire includes cross sections of a plurality of the second wires, top sides of the cross sections of the first voice coil 1 located in the same layer are collinear, and side edges of the same side of the cross sections located in the same column are collinear; the top sides of the cross sections of the second voice coil 2 located in the same layer are collinear, the side edges of the same side of the cross sections located in the same row are collinear, and preferably, the top of the outer side of the first voice coil 1 is provided with a bonding part 4.
As shown in fig. 1, the corners of the cross section of each first wire in the single-sided section of the first voice coil 1 are respectively provided with a chamfer, the chamfers of the cross sections of the adjacent four first wires form a quadrilateral notch 3, namely, four circles of the first wire and/or the second wire are connected by the chamfer angle between two adjacent vertical and horizontal circles to form a cavity, the first wire and the second wire are respectively provided with self-adhesive paint, the first wire in the first voice coil 1, the second wire in the second voice coil 2 and the first wire and the second wire between the binding surfaces of the first voice coil 1 and the second voice coil 2 are respectively tightly bound by a winding process and are more tightly bound together by the self-adhesive paint, the cavity may provide a space for deformation of the first wire and the second wire when performing the winding process.
Example two
Referring to fig. 2, the second embodiment of the present invention is: miniature speaker, including basin frame 5, vibration subassembly and magnetic circuit subassembly 7, the vibration subassembly includes above-mentioned novel voice coil loudspeaker voice coil and vibrating diaphragm subassembly, the vibrating diaphragm subassembly with the top surface of novel voice coil loudspeaker voice coil bonds, and is preferred, the bottom surface of vibrating diaphragm subassembly be equipped with be used for with 4 complex bosss of bonding portion, the boss with 4 bonds of bonding portion, novel voice coil loudspeaker voice coil is located in the basin frame 5, the vibrating diaphragm subassembly is connected basin frame 5 with the voice coil loudspeaker voice coil, magnetic circuit subassembly 7 is located on the basin frame 5.
Specifically, the vibrating diaphragm subassembly includes vibrating diaphragm 6 and locates ball top on the vibrating diaphragm 6, vibrating diaphragm 6 is located on the basin frame 5, the top surface of novel voice coil loudspeaker voice coil with vibrating diaphragm 6 bonds, the ball top is located the middle part region of vibrating diaphragm 6.
Further, the magnetic circuit component 7 comprises a magnetic cover and a magnetic steel component arranged on the magnetic cover, the magnetic cover is arranged on the basin frame 5, preferably, the magnetic circuit component 7 further comprises a washer component, and the washer component is arranged on the magnetic steel component.
In summary, the novel voice coil, the vibration assembly and the micro-speaker provided by the utility model are provided with the first voice coil and the second voice coil, and the first voice coil is wound by adopting the wire made of lighter material, so that the weight of the novel voice coil is effectively reduced, and the acoustic performance of the novel voice coil is favorably improved; first coil and second coil all adopt the wire rod of the transversal rectangle of personally submitting, can reduce the clearance between the wire rod effectively, increase the total length of novel voice coil loudspeaker voice coil in the magnetic gap, further improved the acoustic performance of novel voice coil loudspeaker voice coil, the novel voice coil loudspeaker voice coil structural stability in this scheme is good moreover, and first voice coil loudspeaker voice coil is difficult for taking place to break away from or phenomenon such as circle of loosing with the second voice coil loudspeaker voice coil.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (9)
1. A novel voice coil, its characterized in that: including continuous first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil, first voice coil loudspeaker voice coil is located second voice coil loudspeaker voice coil top, first voice coil loudspeaker voice coil is formed by first wire rod coiling, the second voice coil loudspeaker voice coil is formed by second wire rod coiling, the density of first wire rod is less than the density of second wire rod, the cross section of first wire rod with the cross section of second wire rod is the rectangle respectively.
2. The novel voice coil of claim 1, wherein: the height of the first voice coil is less than or equal to the height of the second voice coil.
3. The novel voice coil of claim 1, wherein: the thickness of the first voice coil is smaller than or equal to the thickness of the second voice coil.
4. The novel voice coil of claim 1, wherein: the single-side section of the first voice coil comprises a plurality of cross sections of the first wire, the single-side section of the second wire comprises a plurality of cross sections of the second wire, the top sides of the cross sections of the first voice coil on the same layer are collinear, and the side edges of the same side of the cross sections of the first voice coil on the same column are collinear; the top edges of all the cross sections in the same layer in the second voice coil are collinear, and the side edges of the same side of all the cross sections in the same column are collinear.
5. The novel voice coil of claim 1, wherein: and corners of the cross section of each first wire in the unilateral cross section of the first voice coil are respectively provided with a chamfer, and the chamfers of the cross sections of the adjacent four first wires form a quadrilateral notch.
6. The novel voice coil of claim 1, wherein: and the top of the outer side of the first voice coil is provided with a bonding part.
7. The novel voice coil of claim 1, wherein: the first voice coil is bonded with the second voice coil.
8. A vibratory assembly, comprising: comprising the novel voice coil according to any one of claims 1 to 7.
9. A micro-speaker, characterized by: comprising the novel voice coil according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120652020.2U CN215420747U (en) | 2021-03-30 | 2021-03-30 | Novel voice coil loudspeaker voice coil, vibration subassembly and miniature speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120652020.2U CN215420747U (en) | 2021-03-30 | 2021-03-30 | Novel voice coil loudspeaker voice coil, vibration subassembly and miniature speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215420747U true CN215420747U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120652020.2U Active CN215420747U (en) | 2021-03-30 | 2021-03-30 | Novel voice coil loudspeaker voice coil, vibration subassembly and miniature speaker |
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|---|---|
| CN (1) | CN215420747U (en) |
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- 2021-03-30 CN CN202120652020.2U patent/CN215420747U/en active Active
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