CN213073080U - Ladder voice coil and miniature speaker - Google Patents
Ladder voice coil and miniature speaker Download PDFInfo
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- CN213073080U CN213073080U CN202021296288.9U CN202021296288U CN213073080U CN 213073080 U CN213073080 U CN 213073080U CN 202021296288 U CN202021296288 U CN 202021296288U CN 213073080 U CN213073080 U CN 213073080U
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Abstract
The utility model discloses a ladder voice coil loudspeaker voice coil and miniature speaker, ladder voice coil loudspeaker voice coil include the body, the top of body is the echelonment. The top of ladder voice coil loudspeaker voice coil is the echelonment, novel structure, compare with current voice coil loudspeaker voice coil, the ladder voice coil loudspeaker voice coil will be close to the wire winding of the one end of vibrating diaphragm subassembly and compensate the one end that is close to magnetic circuit subassembly with the part that reduces, that is to say, the ladder voice coil loudspeaker voice coil has not reduced the part that is in the magnetic gap, and increased the part that is in the magnetic gap, thereby reduce the air-loss that traditional structure caused, can also improve micro-speaker's BL curve flatness, and then improve the symmetry of vibration system vibration, reduce harmonic distortion, can very effectual improvement micro-speaker's wholeness ability.
Description
Technical Field
The utility model relates to an electroacoustic transducer technical field especially relates to a ladder voice coil loudspeaker voice coil and miniature speaker.
Background
The micro-speaker is widely applied to portable electronic equipment such as mobile phones, notebook computers, hearing aids and the like. With the rapid development of these portable electronic devices, there is an increasing demand for miniature electro-acoustic devices to be used therein.
The micro speaker generally includes a frame, a vibration system and a magnetic circuit assembly, the vibration system and the magnetic circuit assembly are mounted on the frame, a magnetic gap is formed on the magnetic circuit assembly, a magnetic field is generated in the magnetic gap, and the vibration system includes a vibrating diaphragm and a voice coil assembly which is connected with the vibrating diaphragm and extends into the magnetic gap. When the micro loudspeaker works, the voice coil assembly is electrified and drives the vibrating diaphragm to vibrate under the action of the magnetic field of the magnetic gap so as to drive the air to produce sound. However, when the micro-speaker is in operation, a large number of structures of the voice coil assembly are not located in the magnetic gap, which results in idle consumption, and thus the power consumption of the micro-speaker is large.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a ladder voice coil and a micro-speaker with novel structure are provided, and the micro-speaker has small idle consumption.
In order to solve the technical problem, the utility model discloses a technical scheme be: a ladder voice coil comprises a body, wherein the top of the body is in a ladder shape.
Further, the body includes two at least regions from inside to outside, adjacent two the region reduces in proper order from inside to outside in order to form the step at the top of body.
Further, the body comprises at least two columns of winding wires, and each zone comprises at least one column of winding wires.
Further, in two adjacent regions, the number of layers of the winding wire in the region located on the inner side is 1 to 7 more than the number of layers of the winding wire in the region located on the outer side.
Further, in two adjacent regions, the number of layers of the winding wire in the region located on the inner side is 3 to 4 more than the number of layers of the winding wire in the region located on the outer side.
Further, the body comprises at least three columns of the winding wires, and the area positioned at the innermost side comprises at least two columns of the winding wires.
Further, the body comprises four rows of the winding wires, and the number of the areas is three.
Further, the body comprises five rows of the winding wires, the number of the areas is three, and the area located on the outermost side comprises two rows of the winding wires.
Further, the body comprises six rows of the winding wires, the number of the areas is three, and the area positioned on the outermost side comprises three rows of the winding wires.
In order to solve the technical problem, the utility model discloses still adopt following technical scheme: the miniature loudspeaker comprises a vibrating diaphragm component and the ladder voice coil, wherein the top end of the ladder voice coil is connected with the vibrating diaphragm component.
The beneficial effects of the utility model reside in that: the top of ladder voice coil loudspeaker voice coil is the echelonment, novel structure, compare with current voice coil loudspeaker voice coil, the ladder voice coil loudspeaker voice coil will be close to the wire winding of the one end of vibrating diaphragm subassembly and compensate the one end that is close to magnetic circuit subassembly with the part that reduces, that is to say, the ladder voice coil loudspeaker voice coil has not reduced the part that is in the magnetic gap, and increased the part that is in the magnetic gap, thereby reduce the air-loss that traditional structure caused, can also improve micro-speaker's BL curve flatness, and then improve the symmetry of vibration system vibration, reduce harmonic distortion, can very effectual improvement micro-speaker's wholeness ability.
Drawings
Fig. 1 is a cross-sectional view of a micro-speaker according to a first embodiment of the present invention;
fig. 2 is a cross-sectional view of a ladder voice coil according to a first embodiment of the present invention;
fig. 3 is a cross-sectional view of a stepped voice coil according to a second embodiment of the present invention;
fig. 4 is a cross-sectional view of a ladder voice coil according to a third embodiment of the present invention;
fig. 5 is a cross-sectional view of a stepped voice coil according to a fourth embodiment of the present invention;
fig. 6 is a cross-sectional view of a fifth step voice coil according to the present invention.
Description of reference numerals:
1. a diaphragm assembly;
2. a basin stand;
3. a magnetic circuit assembly;
4. a magnetic gap;
5. a stepped voice coil;
6. an area;
7. a step;
8. and (6) winding.
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.
The utility model discloses the most crucial design lies in: under the condition that other structures are not changed, only by changing the winding arrangement mode of the voice coil, more parts of structures of the voice coil can be effectively positioned in the magnetic gap, the idle consumption is reduced, and the overall performance of the micro-speaker is improved.
Referring to fig. 1 to 6, a step voice coil includes a body, wherein the top of the body is stepped.
From the above description, the beneficial effects of the present invention are: the top of ladder voice coil loudspeaker voice coil 5 is the echelonment, novel structure, compare with current voice coil loudspeaker voice coil, ladder voice coil loudspeaker voice coil 5 will be close to the wire winding 8 of the one end of vibrating diaphragm subassembly 1 and compensate the one end that is close to magnetic circuit subassembly 3 with the part that reduces, that is to say, ladder voice coil loudspeaker voice coil 5 has reduced the part that is not in magnetic gap 4, and increased the part that is in magnetic gap 4, thereby reduce the empty consumption that traditional structure caused, can also improve micro-speaker's BL curve flatness, and then improve the symmetry of vibration system vibration, reduce harmonic distortion, can be very effectual the wholeness ability of improvement micro-speaker.
Further, the body comprises at least two areas 6 from inside to outside, and two adjacent areas 6 are sequentially lowered from inside to outside to form a step 7 at the top of the body.
As can be seen from the above description, the stepped structure comprises at least one step 7, and when the number of said regions 6 is two, then the stepped structure comprises one step 7; when the number of said regions 6 is three, then the stepped structure comprises two steps 7; and so on.
Further, the body comprises at least two rows of windings 8, and each of the regions 6 comprises at least one row of windings 8.
Further, in two adjacent regions 6, the number of layers of the winding wire 8 in the inner region 6 is 1 to 7 more than the number of layers of the winding wire 8 in the outer region 6.
Further, in two adjacent regions 6, the number of layers of the winding wire 8 in the inner region 6 is 3 to 4 more than the number of layers of the winding wire 8 in the outer region 6.
As can be seen from the above description, the number of layers of the winding 8 in two adjacent regions 6 is appropriate, so that the number of layers of the winding 8 can be prevented from suddenly dropping, which causes the strength of the step voice coil 5 along the Z-axis direction to be insufficient, and thus the coil loosening phenomenon occurs.
Further, the body includes at least three columns of the windings 8, and the innermost region 6 includes at least two columns of the windings 8.
As can be seen from the above description, for the step voice coil 5 having three or more rows of windings 8, the number of layers of the windings 8 in the innermost region 6 is preferably the full layer, so that the glue bonding area between the step voice coil 5 and the diaphragm assembly 1 can be increased, the bonding force between the step voice coil 5 and the diaphragm assembly 1 can be effectively increased, and the phenomenon that the step voice coil 5 falls off due to reliability or long-term fatigue is prevented from affecting the life of the micro-speaker.
Further, the body comprises four rows of the winding wires 8, and the number of the areas 6 is three.
Further, the body comprises five rows of the winding wires 8, the number of the areas 6 is three, and the area 6 positioned at the outermost side comprises two rows of the winding wires 8.
Further, the body includes six rows of the winding wires 8, the number of the areas 6 is three, and the area 6 located at the outermost side includes three rows of the winding wires 8.
As can be seen from the above description, the specific configuration of the stepped voice coil 5 is various, which is beneficial to enrich the diversity of the stepped voice coil 5.
Miniature speaker still includes above-mentioned ladder voice coil loudspeaker voice coil 5 including vibrating diaphragm subassembly 1, the top of ladder voice coil loudspeaker voice coil 5 is connected vibrating diaphragm subassembly 1.
As is apparent from the above description, the micro-speaker has at least all the advantageous effects of the above-described stepped voice coil 5.
Example one
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: miniature speaker, including vibrating diaphragm subassembly 1, basin frame 2 and magnetic circuit subassembly 3, vibrating diaphragm subassembly 1 with magnetic circuit subassembly 3 connects respectively on the basin frame 2, magnetic circuit subassembly 3 has magnetic gap 4, still includes ladder voice coil loudspeaker voice coil 5, ladder voice coil loudspeaker voice coil 5 includes the body, the top of body is the echelonment, ladder voice coil loudspeaker voice coil 5's top is connected vibrating diaphragm subassembly 1, ladder voice coil loudspeaker voice coil 5's bottom is located in the magnetic gap 4.
The body comprises at least two areas 6 from inside to outside, and the adjacent two areas 6 are sequentially lowered from inside to outside to form a step 7 at the top of the body. Specifically, when the cross section is arranged in the height direction of the body, each of the regions 6 is rectangular, the bottom edge of each of the rectangles is located on the same straight line, and in two adjacent rectangles, the height of the rectangle located on the inner side is greater than the height of the rectangle located on the outer side, so that the step 7 is formed. It should be understood that it is also feasible that two adjacent regions 6 are sequentially lowered from outside to inside to form a step 7 on the top of the body, but preferably, two adjacent regions 6 are sequentially lowered from inside to outside to form a step 7 on the top of the body, so as to achieve a certain avoiding effect on the diaphragm assembly 1 (such as a folded ring portion of the diaphragm), prevent the diaphragm assembly 1 from interfering with the stepped voice coil 5, and further ensure the acoustic performance of the micro-speaker.
The body comprises at least two rows of windings 8, each of the zones 6 comprising at least one row of said windings 8.
In two adjacent regions 6, the number of layers of the winding wire 8 in the region 6 located on the inner side is 1 to 7 more than the number of layers of the winding wire 8 in the region 6 located on the outer side. Preferably, in two adjacent regions 6, the number of layers of the winding wire 8 in the inner region 6 is 3 to 4 more than the number of layers of the winding wire 8 in the outer region 6.
In order to ensure the stability of the connection between the step voice coil 5 and the diaphragm assembly 1, the body includes at least three rows of the winding wires 8, and the area 6 located at the innermost side includes at least two rows of the winding wires 8, so that the step voice coil 5 and the diaphragm assembly 1 can be ensured to have a sufficiently large bonding area.
In this embodiment, the body includes five rows of the winding wires 8, the number of the regions 6 is three, and the outermost region 6 includes two rows of the winding wires 8.
Example two
Referring to fig. 3, another specific structure of the ladder voice coil according to the second embodiment of the present invention is provided on the basis of the first embodiment, which is different from the first embodiment in that: the body comprises two rows of the windings 8, and the number of the areas 6 is two.
EXAMPLE III
Referring to fig. 4, a third embodiment of the present invention is another specific structure of the ladder voice coil based on the first embodiment, and is different from the first embodiment in that: the body comprises three columns of the windings 8, the number of the areas 6 is two, and the area 6 at the inner side comprises two columns of the windings 8.
Example four
Referring to fig. 5, a fourth embodiment of the present invention is another specific structure of the ladder voice coil based on the first embodiment, and is different from the first embodiment in that: the body comprises four rows of the windings 8, the number of the areas 6 is three, and the area 6 positioned at the innermost side comprises two rows of the windings 8.
EXAMPLE five
Referring to fig. 6, a fifth embodiment of the present invention is another specific structure of the ladder voice coil based on the first embodiment, and is different from the first embodiment in that: the body comprises six rows of said windings 8, the number of said areas 6 being three, the innermost said area 6 comprising two rows of said windings 8 and the outermost said area 6 comprising three rows of said windings 8.
To sum up, the utility model provides a ladder voice coil loudspeaker voice coil and micro loudspeaker, the top of ladder voice coil loudspeaker voice coil is the echelonment, novel structure, compare with current voice coil loudspeaker voice coil, the wire winding that ladder voice coil loudspeaker voice coil will be close to the one end of vibrating diaphragm subassembly reduces and compensates the one end that is close to magnetic circuit assembly with the part that reduces, that is to say, ladder voice coil loudspeaker voice coil has reduced the part that is not in the magnetic gap, and increased the part that is in the magnetic gap, thereby reduce the empty loss that traditional structure caused, can also improve micro loudspeaker's BL curve flat degree, and then improve the symmetry of vibration system vibration, reduce harmonic distortion, can be very effectual improvement micro loudspeaker's wholeness ability. The micro loudspeaker has stable structure and long service life.
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 (8)
1. A ladder voice coil, includes the body, its characterized in that: the top of the body is in a step shape; the body comprises at least two areas from inside to outside, and the two adjacent areas are sequentially lowered from inside to outside to form a step at the top of the body; the body comprises at least two rows of winding wires, and each area comprises at least one row of winding wires.
2. The stepped voice coil of claim 1, wherein: in two adjacent regions, the number of layers of the winding in the region located on the inner side is 1 to 7 more than the number of layers of the winding in the region located on the outer side.
3. The stepped voice coil of claim 2, wherein: in two adjacent regions, the number of layers of the winding in the region located on the inner side is 3 to 4 more than the number of layers of the winding in the region located on the outer side.
4. The stepped voice coil of claim 1, wherein: the body comprises at least three rows of the winding wires, and the area positioned at the innermost side comprises at least two rows of the winding wires.
5. The stepped voice coil of claim 4, wherein: the body comprises four rows of the winding wires, and the number of the areas is three.
6. The stepped voice coil of claim 4, wherein: the body comprises five rows of the winding wires, the number of the areas is three, and the area positioned on the outermost side comprises two rows of the winding wires.
7. The stepped voice coil of claim 4, wherein: the body comprises six rows of the winding wires, the number of the areas is three, and the area positioned on the outermost side comprises three rows of the winding wires.
8. Miniature speaker, including vibrating diaphragm subassembly, its characterized in that: the voice coil assembly of any of claims 1 to 7, further comprising a stepped voice coil, the top end of the stepped voice coil being connected to the diaphragm assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021296288.9U CN213073080U (en) | 2020-07-02 | 2020-07-02 | Ladder voice coil and miniature speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021296288.9U CN213073080U (en) | 2020-07-02 | 2020-07-02 | Ladder voice coil and miniature speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213073080U true CN213073080U (en) | 2021-04-27 |
Family
ID=75571102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021296288.9U Active CN213073080U (en) | 2020-07-02 | 2020-07-02 | Ladder voice coil and miniature speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213073080U (en) |
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2020
- 2020-07-02 CN CN202021296288.9U patent/CN213073080U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 3 / F, building A5, No. 463, South Ring Road, Heyi community, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Weishi Technology Co.,Ltd. Country or region after: China Address before: 3 / F, building A5, No. 463, South Ring Road, Heyi community, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN SUNWAY ACOUSTICS TECHNOLOGY Co.,Ltd. Country or region before: China |