CN218920605U - Speaker monomer and sounding module - Google Patents
Speaker monomer and sounding module Download PDFInfo
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- CN218920605U CN218920605U CN202222729836.8U CN202222729836U CN218920605U CN 218920605 U CN218920605 U CN 218920605U CN 202222729836 U CN202222729836 U CN 202222729836U CN 218920605 U CN218920605 U CN 218920605U
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- circuit board
- voice coil
- coil
- receiving circuit
- loudspeaker
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Abstract
The utility model discloses a loudspeaker monomer and a sounding module, which comprises a vibration assembly and a receiving circuit board, wherein the vibration assembly comprises a vibrating diaphragm and a voice coil which are connected; the receiving circuit board is fixed on the vibrating diaphragm, a wireless receiving coil is arranged on the receiving circuit board, and the wireless receiving coil is electrically connected with the voice coil. This speaker monomer and sound production module utilize electromagnetic induction principle, through wireless mode power supply for the voice coil loudspeaker voice coil that charges, need not to use lead wire or centering piece, solved the easy cracked phenomenon of appearance of lead wire or centering piece, promoted the life of product, with lead wire or centering piece space that occupies originally, divide for other spare parts (for example magnetic circuit assembly) simultaneously, be favorable to the promotion of sound production module performance.
Description
Technical Field
The utility model relates to the technical field of electroacoustic conversion devices, in particular to a loudspeaker unit and a sounding module.
Background
The sounding module is a device capable of converting electric energy into acoustic energy and is widely applied to terminal equipment such as mobile phones and the like. In the existing sounding module, a voice coil is connected with an external power supply in a lead wire or centering support piece mode, so that conduction is achieved. However, lead wire or centering piece, in the long-time use of large amplitude, fatigue fracture's phenomenon appears easily, leads to the voice coil loudspeaker voice coil unable to switch on, influences the life-span of sound production module, and lead wire or centering piece are located inside the speaker monomer simultaneously, can occupy inner space to restrict other spare part, restricted the promotion of sound production module performance.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a speaker unit and a sound generating module are provided without using a lead wire or a centering support.
In order to solve the technical problems, the utility model adopts the following technical scheme: a speaker unit comprising:
the vibration assembly comprises a vibrating diaphragm and a voice coil which are connected;
and the receiving circuit board is fixed on the vibrating diaphragm and is provided with a wireless receiving coil, and the wireless receiving coil is electrically connected with the voice coil.
Further, an inner bonding pad is arranged on one side, close to the voice coil, of the receiving circuit board, and the wireless receiving coil is electrically connected with the voice coil through the inner bonding pad.
Further, the circuit assembly comprises a central washer, and an avoidance notch is formed in the position, corresponding to the inner bonding pad, of the central washer.
Further, a first opening window is formed in the vibrating diaphragm, and the receiving circuit board covers the first opening window.
Further, the wireless receiving coil is printed on the receiving circuit board.
In order to solve the technical problems, the utility model also adopts the following technical scheme: the utility model provides a sound production module, includes foretell speaker monomer, still includes:
the shell is provided with a containing groove, and the loudspeaker unit is arranged in the containing groove;
and the output circuit board is arranged on the shell, and is provided with a wireless transmitting coil matched with the wireless receiving coil.
Further, the housing includes an upper case and a lower case connected to each other, the output circuit board is disposed on the upper case, and the receiving groove is disposed on the lower case.
Further, a second opening window is formed in the top surface of the upper shell, a supporting plate is arranged at the second opening window, and the output circuit board is fixed on one side, close to the vibration assembly, of the supporting plate.
Further, a slot is formed in the top surface of the upper shell and close to the edge of the second window, and the output circuit board is provided with a wiring terminal which extends out of the second window through the slot.
Further, the loudspeaker comprises an elastic pad, wherein the elastic pad is arranged at the bottom of the accommodating groove, and the elastic pad abuts against the loudspeaker monomer.
The utility model has the beneficial effects that: this speaker monomer and sound production module utilize electromagnetic induction principle, through wireless mode power supply for the voice coil loudspeaker voice coil that charges, need not to use lead wire or centering piece, solved the easy cracked phenomenon of appearance of lead wire or centering piece, promoted the life of product, with lead wire or centering piece space that occupies originally, divide for other spare parts (for example magnetic circuit assembly) simultaneously, be favorable to the promotion of sound production module performance.
Drawings
Fig. 1 is a schematic structural diagram of a speaker unit according to an embodiment of the present utility model;
fig. 2 is a cross-sectional view of a speaker unit according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of an internal structure of a speaker unit according to an embodiment of the present utility model;
FIG. 4 is an exploded view of a sound module according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of an output circuit board of a sounding module according to an embodiment of the present utility model.
Description of the reference numerals:
1. a vibrating diaphragm; 11. a first window;
2. a voice coil;
3. a receiving circuit board; 31. a wireless receiving coil; 32. an inner bonding pad;
4. a central washer; 41. avoiding the notch;
5. a speaker unit;
6. a housing; 61. an upper case; 611. a second window; 612. a support plate; 613. slotting; 62. a lower case; 621. a receiving groove;
7. an output circuit board; 71. a wireless transmitting coil; 72. a terminal;
8. an elastic pad.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 5, a speaker unit includes a vibration assembly and a receiving circuit board 3, wherein the vibration assembly includes a diaphragm 1 and a voice coil 2 connected to each other; the receiving circuit board 3 is fixed on the vibrating diaphragm 1, a wireless receiving coil 31 is arranged on the receiving circuit board 3, and the wireless receiving coil 31 is electrically connected with the voice coil 2.
The working principle of the utility model is briefly described as follows: the loudspeaker unit utilizes the electromagnetic induction principle, and utilizes the wireless receiving coil 31 and the voice coil 2 to directly connect to supply power for the voice coil 2, thereby eliminating the original lead wire or centering support sheet and other structures in the loudspeaker unit.
From the above description, the beneficial effects of the utility model are as follows: this speaker monomer and sound production module utilize electromagnetic induction principle, through wireless mode power supply for the voice coil loudspeaker voice coil that charges, need not to use lead wire or centering piece, solved the easy cracked phenomenon of appearance of lead wire or centering piece, promoted the life of product, with lead wire or centering piece space that occupies originally, divide for other spare parts (for example magnetic circuit assembly) simultaneously, be favorable to the promotion of sound production module performance.
Further, an inner bonding pad 32 is disposed on the side of the receiving circuit board 3 close to the voice coil 2, and the wireless receiving coil 31 is electrically connected with the voice coil 2 through the inner bonding pad 32.
Further, the circuit assembly comprises a central washer 4, and an avoidance notch 41 is arranged at the position of the central washer 4 corresponding to the inner bonding pad 32.
From the above description, the avoidance notch is used for avoiding the inner bonding pad, so as to prevent the inner bonding pad from colliding with the central washer to cause the welding spot to break during vibration.
Further, a first opening window 11 is provided on the diaphragm 1, and the receiving circuit board 3 covers the first opening window 11.
It can be seen from the above description that the connection of the receiving circuit board with the diaphragm can play a role in enhancing the structural strength of the diaphragm to a certain extent, that is, the effect is consistent with that of the dome in the prior art, so that the receiving circuit board can replace the dome, and the receiving circuit board plays a multipurpose role at this time.
Further, the wireless receiving coil 31 is printed on the receiving circuit board 3.
As can be seen from the above description, the wireless receiving coil is printed on the receiving circuit board, which is beneficial to reducing the thickness of the whole receiving circuit board, thereby reducing the volume of the speaker unit.
The sound generating module comprises the loudspeaker single body 5, a shell 6 and an output circuit board 7, wherein the shell 6 is provided with a containing groove 621, and the loudspeaker single body 5 is arranged in the containing groove 621; the output circuit board 7 is arranged on the shell 6, and a wireless transmitting coil 71 matched with the wireless receiving coil 31 is arranged on the output circuit board 7.
Further, the housing 6 includes an upper case 61 and a lower case 62 connected to each other, the output circuit board 7 is provided on the upper case 61, and the receiving groove 621 is provided on the lower case 62.
As can be seen from the above description, the housing adopts a split structure, so that the speaker unit is conveniently mounted inside the housing.
Further, a second opening 611 is provided on the top surface of the upper case 61, a support plate 612 is provided at the second opening 611, and the output circuit board 7 is fixed on one side of the support plate 612 near the vibration component.
It can be seen from the above description that the second opening window is provided and the second opening window is closed by using the supporting plate, the material hardness of the supporting plate can be greater than that of the upper shell, and the volume of the front acoustic cavity of the sounding module is increased on the premise of ensuring that the upper shell has enough structural strength, thereby being beneficial to improving the acoustic performance of the sounding module.
Further, a slot 613 is formed in the top surface of the upper case 61 near the edge of the second window 611, and the output circuit board 7 has a terminal 72, and the terminal 72 protrudes out of the second window 611 through the slot 613.
From the above description, the terminals of the output circuit board extend from the slots, so as to be connected with an external power supply.
Further, the speaker unit further comprises an elastic pad 8, the elastic pad 8 is disposed at the bottom of the accommodating groove 621, and the elastic pad 8 abuts against the speaker unit 5.
As can be seen from the above description, the elastic pad is used for abutting and fixing the speaker unit to prevent the speaker unit from sliding and shifting.
Example 1
Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows: the loudspeaker unit comprises a vibration assembly, a magnetic circuit assembly and a receiving circuit board 3, wherein the vibration assembly comprises a basin frame, a vibrating diaphragm 1 and a voice coil 2, the vibrating diaphragm 1 comprises an inner fixing part, a folded ring part and an outer fixing part which are sequentially connected from inside to outside, the outer fixing part is connected with the basin frame, and the voice coil 2 is fixed on the inner fixing part; the magnetic circuit assembly comprises a yoke and magnetic steels, the yoke is connected with the basin frame, the magnetic steels are arranged on the yoke, the magnetic steels comprise a central magnetic steel and a plurality of side magnetic steels, a central washer is arranged at the top of the central magnetic steel, bian Huasi is arranged at the top of the side magnetic steel, the central magnetic steel is arranged between at least two opposite side magnetic steels, a magnetic circuit gap is formed between the central magnetic steel and the side magnetic steels, and at least one part of the voice coil 2 is positioned in the magnetic circuit gap; the receiving circuit board 3 is fixed on the vibrating diaphragm 1, a wireless receiving coil 31 is arranged on the receiving circuit board 3, and the wireless receiving coil 31 is electrically connected with the voice coil 2; in this embodiment, the wireless receiving coil 31 is printed on the receiving circuit board 3. The receiving circuit board 3 may be either a PCB board or an FPC board, and since the FPC board has an advantage of being thin in thickness, the receiving circuit board 3 is preferably an FPC board.
Referring to fig. 3, an inner bonding pad 32 is disposed on a side of the receiving circuit board 3 near the voice coil 2, the wireless receiving coil 31 is electrically connected to the voice coil 2 through the inner bonding pad 32, so as to avoid occurrence of a welding spot fracture caused by collision between the inner bonding pad and the central washer 4 during vibration, in this embodiment, an avoidance notch 41 is disposed at a position of the central washer 4 corresponding to the inner bonding pad 32.
Referring to fig. 2, a first opening window 11 is provided on the diaphragm 1, the receiving circuit board 3 covers the first opening window 11, and in this embodiment, the first opening window 11 is provided on the inner fixing portion.
Example two
Referring to fig. 1, 4 and 5, a second embodiment of the present utility model is as follows: a sounding module is applied to electronic equipment such as mobile phones, sound boxes, intelligent watches, tablet computers, notebook computers and the like.
The sound generating module comprises the speaker unit 5 in the first embodiment, and further comprises a housing 6 and an output circuit board 7, wherein the housing 6 is provided with a containing groove 621, and the speaker unit 5 is installed in the containing groove 621; the output circuit board 7 is arranged on the shell 6, and a wireless transmitting coil 71 matched with the wireless receiving coil 31 is arranged on the output circuit board 7; in this embodiment, the wireless transmitting coil 71 is printed on the output circuit board 7.
Referring to fig. 4, the housing 6 includes an upper case 61 and a lower case 62 connected to each other, the output circuit board 7 is disposed on the upper case 61, the receiving groove 621 is disposed on the lower case 62, in this embodiment, the upper case 61 and the lower case 62 are connected by a snap, and the upper case 61 is provided with a plurality of mounting holes for connecting to the electronic device main body.
Referring to fig. 4, a second opening 611 is provided on the top surface of the upper case 61, a supporting board 612 is provided at the second opening 611, the output circuit board 7 is fixed on one side of the supporting board 612 near the vibration component, in this embodiment, the second opening 611 is a stepped slot, and the supporting board 612 covers the second opening 611.
Referring to fig. 4, a slot 613 is formed in the top surface of the upper case 61 near the edge of the second opening 611, the output circuit board 7 has a terminal 72, and the terminal 72 extends out of the second opening 611 through the slot 613, in this embodiment, the terminal 72 and the output circuit board 7 are integrally formed as a one-piece structure.
Referring to fig. 4, the speaker unit further includes an elastic pad 8, the elastic pad 8 is disposed at the bottom of the accommodating groove 621, and the elastic pad 8 abuts against the speaker unit 5; optionally, the elastic pad 8 is an elastic foam, an elastic rubber pad, or an elastic latex pad, and in this embodiment, the elastic pad 8 is an elastic foam.
In summary, the speaker unit and the sounding module provided by the utility model supply power to the voice coil in a wireless charging manner by utilizing the electromagnetic induction principle, and a lead wire or a centering support sheet is not needed, so that the phenomenon that the lead wire or the centering support sheet is easy to break is solved, the service life of a product is prolonged, and meanwhile, the space originally occupied by the lead wire or the centering support sheet is divided into other parts (such as a magnetic circuit assembly), thereby being beneficial to improving the performance of the sounding module; the wireless receiving coil is printed on the receiving circuit board, so that the thickness of the whole receiving circuit board is reduced, and the size of a loudspeaker unit is further reduced; reasonable structure, convenient installation and convenient later maintenance.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. A speaker unit comprising:
the vibration assembly comprises a vibrating diaphragm and a voice coil which are connected;
and the receiving circuit board is fixed on the vibrating diaphragm and is provided with a wireless receiving coil, and the wireless receiving coil is electrically connected with the voice coil.
2. A loudspeaker unit according to claim 1, wherein: and an inner bonding pad is arranged on one side of the receiving circuit board, which is close to the voice coil, and the wireless receiving coil is electrically connected with the voice coil through the inner bonding pad.
3. A loudspeaker unit according to claim 2, wherein: the magnetic circuit assembly comprises a central washer, and an avoidance notch is formed in the position, corresponding to the inner bonding pad, of the central washer.
4. A loudspeaker unit according to claim 1, wherein: the vibrating diaphragm is provided with a first window, and the receiving circuit board covers the first window.
5. A loudspeaker unit according to claim 1, wherein: the wireless receiving coil is printed on the receiving circuit board.
6. A sound module comprising the speaker unit of any one of claims 1-5, further comprising:
the shell is provided with a containing groove, and the loudspeaker unit is arranged in the containing groove;
and the output circuit board is arranged on the shell, and is provided with a wireless transmitting coil matched with the wireless receiving coil.
7. The sound emitting module of claim 6, wherein: the shell comprises an upper shell and a lower shell which are connected with each other, the output circuit board is arranged on the upper shell, and the accommodating groove is arranged on the lower shell.
8. The sound emitting module of claim 7, wherein: the top surface of the upper shell is provided with a second opening window, a supporting plate is arranged at the second opening window, and the output circuit board is fixed on one side of the supporting plate, which is close to the vibration component.
9. The sound emitting module of claim 8, wherein: the top surface of the upper shell is provided with a slot near the edge of the second window, the output circuit board is provided with a wiring terminal, and the wiring terminal extends out of the second window through the slot.
10. The sound emitting module of claim 6, wherein: the loudspeaker further comprises an elastic pad, wherein the elastic pad is arranged at the bottom of the accommodating groove, and the elastic pad abuts against the loudspeaker monomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222729836.8U CN218920605U (en) | 2022-10-17 | 2022-10-17 | Speaker monomer and sounding module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222729836.8U CN218920605U (en) | 2022-10-17 | 2022-10-17 | Speaker monomer and sounding module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218920605U true CN218920605U (en) | 2023-04-25 |
Family
ID=86046761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222729836.8U Active CN218920605U (en) | 2022-10-17 | 2022-10-17 | Speaker monomer and sounding module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218920605U (en) |
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2022
- 2022-10-17 CN CN202222729836.8U patent/CN218920605U/en active Active
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| GR01 | Patent grant |