CN209897263U - Sound production monomer and speaker - Google Patents

Sound production monomer and speaker Download PDF

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Publication number
CN209897263U
CN209897263U CN201920614918.3U CN201920614918U CN209897263U CN 209897263 U CN209897263 U CN 209897263U CN 201920614918 U CN201920614918 U CN 201920614918U CN 209897263 U CN209897263 U CN 209897263U
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China
Prior art keywords
retaining
voice coil
circuit board
flexible circuit
abutting
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CN201920614918.3U
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Chinese (zh)
Inventor
任璋
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AAC Technologies Pte Ltd
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AAC Technologies Pte Ltd
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Priority to CN201920614918.3U priority Critical patent/CN209897263U/en
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Abstract

The utility model provides a sound production monomer and speaker, the sound production monomer includes basin frame and magnetic circuit, vibration system is including setting firmly vibrating diaphragm on the basin frame, the voice coil loudspeaker voice coil of drive vibrating diaphragm vibration sound production and the flexible circuit board of being connected with the voice coil loudspeaker voice coil electricity, the basin frame is including the installation face that is used for fixed flexible circuit board, be provided with the first electrically conductive piece of being connected with the voice coil loudspeaker voice coil electricity on the installation face, be provided with the second electrically conductive piece of being connected with the flexible circuit board electricity on the flexible circuit board, through the cooperation of first electrically conductive piece and the electrically conductive buckle of second, so that the flexible circuit. The technical proposal of the utility model realizes the direct plug contact of the flexible circuit board on the basin frame, and is convenient for assembly; in addition, first electrically conductive piece can just weld before the voice coil loudspeaker voice coil equipment, neither influences the voice coil loudspeaker voice coil and installs on the basin frame, also can prevent effectively that welding process from producing the influence to the voice coil loudspeaker voice coil performance to guarantee the free normal use of sound production.

Description

Sound production monomer and speaker
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electroacoustic conversion technical field, in particular to sound production monomer and speaker.
[ background of the invention ]
With the rapid development of science and technology, the popularity of audio equipment is higher and higher, and people's requirements on audio equipment are not only limited to the playing of video and audio, but also require more requirements on the reliability of audio equipment. Especially, in the development of mobile multimedia, many audio devices have multiple entertainment functions, such as video playing, digital camera shooting, games, GPS navigation, etc., and electronic components in the audio devices are required to be more and more precise and compact, but the more electronic components, the poorer the reliability of the audio devices.
In audio equipment, a speaker is a commonly used electronic component, and is mainly used for playing audio signals. The sounding unit in the existing loudspeaker is often electrically connected with an external circuit by using a flexible circuit board. The prior art welds basin frame and flexible circuit board after assembling the sound production monomer earlier, at the welded in-process, appears exploding the problem of welding easily to make tiny tin pearl enter into the free inside of sound production and the adhesion at the lateral wall of voice coil loudspeaker voice coil, lead to the bad condition of noise to appear, influence the free normal use of sound production. In addition, the flexible circuit board needs to be accurately welded to the conductive pad area of the basin stand to ensure normal use, which is inconvenient for assembly of the flexible circuit board.
Therefore, there is a need to provide a new sounding unit to solve the above problems.
[ Utility model ] content
An object of the utility model is to provide a can make things convenient for the assembly of flexible circuit board and can not influence the sound production monomer of voice coil loudspeaker voice coil performance again.
The technical scheme of the utility model as follows:
the utility model provides a sound production monomer, the basin frame that has accommodating space with accept in magnetic circuit, the fixing in the basin frame the vibration system of basin frame, vibration system including set firmly in vibrating diaphragm, drive on the basin frame the voice coil loudspeaker voice coil of vibrating diaphragm vibration sound production and with the flexible circuit board that the voice coil loudspeaker voice coil electricity is connected, the basin frame is including being used for fixing flexible circuit board's installation face, be provided with on the installation face with the first electrically conductive piece that the voice coil loudspeaker voice coil electricity is connected, be provided with on the flexible circuit board with the second electrically conductive piece that the flexible circuit board electricity is connected, through first electrically conductive piece with the buckle cooperation is led to the second, so that flexible circuit board can dismantle connect in basin frame.
In one embodiment, the first conductive member includes a protruding portion, a top portion and a bending portion connecting the protruding portion and the top portion, the second conductive member includes a clamping portion and a connecting portion connecting the clamping portion and the flexible circuit board, the protruding portion, the bending portion and the top portion are enclosed to form a clamping groove, and the clamping portion is clamped in the clamping groove.
In one embodiment, the connecting portion is fixed in abutment with the boss.
In one embodiment, the abutting portion is obliquely extended from one end of the bending portion away from the protruding portion toward the direction of the protruding portion, the free end of the abutting portion is bent to form a flange, the flange includes a first flange bent from one end of the abutting portion away from the bending portion and a second flange bent from one end of the first flange away from the free end of the abutting portion toward the direction away from the clamping portion, and the first flange abuts against the clamping portion.
In one embodiment, the retaining portion is U-shaped, the retaining portion includes a first retaining portion extending from an end of the connecting portion close to the abutting portion, a second retaining portion close to the protruding portion, and a third retaining portion connecting the first retaining portion and the second retaining portion, and the first flange abuts against the first retaining portion.
In one embodiment, the protruding portion includes an arc-shaped middle portion and an extending portion extending from an end of the middle portion, the extending portion extends vertically from one end of the middle portion to a position far away from the connecting portion and along a vibration direction, the extending portion includes a first extending portion far away from the retaining groove and a second extending portion close to the retaining groove, the middle portion is in abutting connection with the connecting portion, and the second extending portion is in abutting connection with the second retaining portion.
In one embodiment, the second extending portion includes a holding surface fixed in abutment with the second holding portion and an abutting groove recessed from the holding surface to a position far away from the second holding portion, and the second holding portion abuts against the abutting groove.
In one embodiment, a width between a surface of the first flange abutting against the first retaining portion and a surface of the second retaining portion abutting against the abutting groove is larger than a width between a surface of the first flange abutting against the first retaining portion and a surface of the abutting groove abutting against the second retaining portion.
In one embodiment, the third clamping portion is spaced apart from the bent portion.
In one embodiment, the first conductive member is integrally formed with the frame by injection molding, spot welding or soldering, and the second conductive member is integrally formed with the flexible circuit board by surface mounting.
In one embodiment, the basin stand comprises an installation part, the vibrating diaphragm is fixedly arranged on one side of the installation part, the installation surface is arranged on one side, far away from the vibrating diaphragm, of the installation part, the magnetic circuit system comprises a lower clamping plate, the lower clamping plate is arranged on the installation surface in a covering mode, a notch is formed in the lower clamping plate, and the notch is used for allowing the first conductive piece to be installed on the installation surface.
In one of them embodiment, be provided with the leakage hole between lower plate and the basin frame, the basin frame still includes the shielding part, the shielding part set up in the installation department is kept away from one side of vibrating diaphragm, and right the leakage hole part shelters from, the shielding part with the installation department encloses to close and forms and is used for the holding the storage tank of first electrically conductive piece, the installation face set up in the storage tank.
A loudspeaker comprises a shell and a sounding single body contained in the shell, wherein the sounding single body comprises the sounding single body.
The beneficial effects of the utility model reside in that: the first conductive piece electrically connected with the voice coil is arranged on the mounting surface of the basin frame, the second conductive piece electrically connected with the flexible circuit board is arranged on the flexible circuit board, and the first conductive piece and the second conductive piece are in snap fit so that the flexible circuit board can be detachably connected to the basin frame, the flexible circuit board can be directly inserted and pulled out and contacted on the basin frame, and assembly is facilitated; in addition, the first conductive member may be soldered before the voice coil is assembled. Therefore, the voice coil is not influenced to be installed on the basin frame, and the influence of the performance of the voice coil during the welding process can be effectively prevented, so that the normal use of the sounding monomer is ensured.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of an embodiment of the sound generating unit of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an exploded view of the sound generating unit of FIG. 1;
fig. 4 is a schematic structural diagram of the first conductive member in fig. 1;
fig. 5 is a schematic structural diagram of the second conductive member in fig. 1.
[ detailed description ] embodiments
The present invention will be further described with reference to the accompanying drawings and embodiments.
One embodiment provides a sound emitting cell 10. Fig. 1 to fig. 3 show the structure of the sounding unit 10, in which the sounding unit 10 includes a frame 100 having a receiving space, a magnetic circuit 200 received in the frame 100, and a vibration system 300 fixed to the frame 100, and the vibration system 300 includes a diaphragm 310 fixed to the frame 100, a voice coil for driving the diaphragm 310 to vibrate and sound, and a flexible circuit board 320 electrically connected to the voice coil.
The tub stand 100 has a hollow rectangular shape as a whole. The basin stand 100 comprises a mounting surface 110 used for fixing the flexible circuit board 320, a first conductive piece 400 electrically connected with the voice coil is arranged on the mounting surface 110, a second conductive piece 500 electrically connected with the flexible circuit board 320 is arranged on the flexible circuit board 320, and the flexible circuit board 320 is detachably connected to the basin stand 100 through the buckling and matching of the first conductive piece 400 and the second conductive piece 500, so that the flexible circuit board 320 can be conveniently detached and replaced on the basin stand 100. Because the first conductive member 400 and the second conductive member 500 have a conductive function, and are electrically connected to an external power source through the flexible circuit board 320, a current passes through the flexible circuit board 320, the first conductive member 400, and the second conductive member 500 in sequence to reach the voice coil, and after the voice coil is energized, the voice coil vibrates under the action of the magnetic field of the magnetic circuit system 200, so that the voice coil drives the diaphragm 310 to vibrate together, thereby realizing the sound production of the sound production unit 10.
Referring to fig. 2, in the embodiment, the first conductive member 400 includes a protruding portion 410, an abutting portion 420, and a bending portion 430 connecting the protruding portion 410 and the abutting portion 420, the second conductive member 500 includes a clamping portion 510 and a connecting portion 520 connecting the clamping portion 510 and the flexible circuit board 320, the protruding portion 410, the bending portion 430, and the abutting portion 420 surround to form a clamping groove 440, and the clamping portion 510 is clamped in the clamping groove 440. The snap connection of the flexible circuit board 320 and the basin stand 100 is realized through the cooperation of the catch part 520 and the catch groove 440.
Further, referring to fig. 2, the connection portion 520 is abutted and fixed to the protrusion portion 410, so that the protrusion portion 410 supports the connection portion 520 and keeps the first conductive member 400 and the second conductive member 500 conductive.
Referring to fig. 2 and fig. 4, in the present embodiment, the abutting portion 420 is obliquely extended from one end of the bending portion 430 away from the protruding portion 410 toward the protruding portion 410, so that the abutting portion 420 generates an elastic force when contacting the holding portion 510; the free end of the abutting part 420 is bent to form a flanging 421, the flanging 421 comprises a first flanging 401 bent from the end of the abutting part 420 far away from the bending part 430 and a second flanging 402 extending from the end of the first flanging 401 far away from the free end of the abutting part 420 to the direction far away from the clamping part 510, and the first flanging 401 abuts against the clamping part 510, so that the abutting part 420 is convenient to contact with the clamping part 510, and the clamping part 510 is convenient to insert and pull in the clamping groove 440; and the first conductive member 400 and the second conductive member 500 are in double-contact, so that the contact reliability is increased, and the use effect is ensured.
Referring to fig. 2 and 5, in the present embodiment, the retaining portion 510 is U-shaped, the retaining portion 510 includes a first retaining portion 511 extending from one end of the connecting portion 520 near the abutting portion 420, a second retaining portion 512 near the protruding portion 410, and a third retaining portion 513 connecting the first retaining portion 511 and the second retaining portion 512, and the first flange 401 abuts against the first retaining portion 511. Specifically, the U-shaped retaining portion 510 and the protrusion portion 410 are used together, so that the first conductive member 400 and the second conductive member 500 can have strong impact resistance when being matched, and the reliability of the conductive members can be further improved. Further, the third catching portion 513 and the bending portion 430 are spaced apart from each other, so that a buffering distance is maintained between the catching portion 510 and the bending portion 430, and the buffering effect is more desirable.
Referring to fig. 2, 4 and 5, in the present embodiment, the protrusion 410 includes an arc middle portion 411 and an extension portion 412 extending from an end of the middle portion 411, the extension portion 412 extends from one end of the middle portion 411 to a position far away from the connecting portion 520 and vertically along the vibration direction, the extension portion 412 includes a first extension portion 403 far away from the retaining groove 440 and a second extension portion 404 close to the retaining groove 440, the middle portion 411 is fixed in abutment with the connecting portion 520, and similarly, the structures of the first extension portion 403 and the second extension portion 404 also play a role in buffering the second conductive member 500 during the impact. The second extending portion 404 is abutted and fixed with the second retaining portion 512, which is beneficial for the protruding portion 410 to fix and limit the retaining portion 510.
Further, referring to fig. 2, fig. 4 and fig. 5, the second extending portion 404 includes a holding surface 405 abutting against and fixed to the second holding portion 512, and an abutting groove 406 recessed from the holding surface 405 to a position far away from the second holding portion 512, and the second holding portion 512 abuts against and is held in the abutting groove 406. When the clamping portion 510 completely enters the clamping groove 440, the abutting groove 406 limits the clamping portion 510, so that the clamping portion 510 cannot be easily separated from the clamping groove 440 without external force, thereby improving the reliability of the use between the first conductive member 400 and the second conductive member 500.
Further, referring to fig. 2, fig. 4 and fig. 5, in the present embodiment, a width between a surface of the first flap 511 and a surface of the second flap 512 abutting the retaining groove 440 is greater than a width between a surface of the first flap 401 and a surface of the second flap 440 abutting the second retaining portion 512; that is, in the installation process, the first clamping portion 511 and the second clamping portion 512 respectively press the first flanging 401 and the abutting groove 406 outwards, and after the installation, the first clamping portion 511 and the second clamping portion 512 are fixed by the inward pressing force of the first flanging 401 and the abutting groove 406, so that the clamping firmness of the second conductive member 500 to the first conductive member 400 is ensured.
Referring to fig. 3, in the present embodiment, the first conductive member 400 is integrally formed with the frame 100 by injection molding, spot welding or soldering, and the second conductive member 500 is integrally formed with the flexible circuit board 320 by surface mounting. By such arrangement, the first conductive member 400 and the second conductive member 500 do not fall off in the using process, and the using effect is ensured.
Referring to fig. 2 and fig. 3, in the embodiment, the frame 100 includes a mounting portion 111, the diaphragm 310 is fixedly disposed on one side of the mounting portion 111, the mounting surface 110 is disposed on one side of the mounting portion 111 away from the diaphragm 310, the magnetic circuit system 200 includes a lower clamp 210, the lower clamp 210 is covered on the mounting surface 110, a notch 211 is formed in the lower clamp 210, and the notch 211 is used for allowing the first conductive member 400 to be mounted on the mounting surface 110, so as to facilitate mounting.
Referring to fig. 3, in the embodiment, a leakage hole 112 is formed between the lower clamp plate 210 and the basin stand 100, the basin stand 100 further includes a shielding portion 113, the shielding portion 113 is disposed on a side of the mounting portion 111 away from the diaphragm 310 and partially shields the leakage hole 112, the shielding portion 113 and the mounting portion 111 surround to form a receiving groove 114 for receiving the first conductive member 400, and the mounting surface 110 is disposed in the receiving groove 114. In the process of soldering the first conductive member 400 with tin, in order to prevent the problem of solder explosion, the shielding portion 113 is disposed at the position of the leakage hole 112, so as to effectively block the fine solder balls, thereby preventing the interior of the frame 100 from being contaminated during the soldering process and ensuring the normal installation of the voice coil.
Referring to fig. 3 and 4, in the present embodiment, the flexible circuit board 320 includes a fixing portion 321 fixedly connected to the connecting portion 520 and a circuit board 322 extending outward from the fixing portion 321, and the fixing portion 321 and the circuit board 322 enclose to form an avoiding groove 323. Through the arrangement of the abdicating groove 323, the flexible circuit board 320 is convenient to be installed on the basin frame 100, the whole size of the sounding unit 10 is reduced, and therefore the loudspeaker is suitable for narrow assembling space in the loudspeaker.
According to the technical scheme of the utility model, the first conductive piece 400 electrically connected with the voice coil is arranged on the mounting surface 110 of the basin frame 100, the second conductive piece 500 electrically connected with the flexible circuit board 320 is arranged on the flexible circuit board 320, and the first conductive piece 400 is in snap fit with the second conductive piece 500, so that the flexible circuit board 320 can be detachably connected with the basin frame 100, and the flexible circuit board 320 can be directly plugged and contacted on the basin frame 100, thereby facilitating assembly; in addition, the first conductive member 400 may be soldered before the voice coil is assembled. Thus, the voice coil is not influenced to be installed on the basin frame 100, and the influence of the welding process on the performance of the voice coil can be effectively prevented, so that the normal use of the sounding single body 10 is ensured. Meanwhile, the shielding part 113 is arranged on the basin frame 100, so that the inside of the basin frame 100 can be effectively protected from being polluted in the welding process, the normal installation of the voice coil is ensured, the structure is simple, the design is ingenious, and the practicability is high.
The utility model discloses still provide a speaker, this speaker include the casing and accept in the sound production monomer 10 of casing, and the concrete structure of sound production monomer 10 refers to above-mentioned embodiment, because this speaker has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims (13)

1. The utility model provides a sound production monomer, including the basin frame that has accommodating space with accept in magnetic circuit, the fixing in the basin frame the vibration system, vibration system including set firmly in vibrating diaphragm, drive on the basin frame the voice coil loudspeaker voice coil of vibrating diaphragm vibration sound production and with the flexible circuit board that the voice coil loudspeaker voice coil electricity is connected, a serial communication port, the basin frame is including being used for fixing the installation face of flexible circuit board, be provided with on the installation face with the first electrically conductive piece of voice coil loudspeaker voice coil electricity connection, be provided with on the flexible circuit board with the second electrically conductive piece of flexible circuit board electricity is connected is electrically conductive, through first electrically conductive piece with the cooperation of second electrically conductive piece buckle, so that the flexible circuit board can dismantle connect in basin frame.
2. The sounding unit according to claim 1, wherein the first conductive member includes a protrusion portion, a top portion and a bending portion connecting the protrusion portion and the top portion, the second conductive member includes a clamping portion and a connecting portion connecting the clamping portion and the flexible circuit board, the protrusion portion, the bending portion and the top portion surround to form a clamping groove, and the clamping portion is clamped in the clamping groove.
3. The sound generating unit as claimed in claim 2, wherein the connecting portion is fixed in abutment with the boss portion.
4. The sounding unit according to claim 2, wherein the abutting portion is disposed to extend obliquely from an end of the bending portion away from the protruding portion toward the protruding portion, the free end of the abutting portion is bent to form a flange, the flange includes a first flange bent from an end of the abutting portion away from the bending portion and a second flange extending from an end of the first flange away from the free end of the abutting portion toward the direction away from the retaining portion, and the first flange abuts against the retaining portion.
5. The sounding unit according to claim 4, wherein the retaining portion is U-shaped, the retaining portion includes a first retaining portion extending from an end of the connecting portion near the abutting portion, a second retaining portion near the protruding portion, and a third retaining portion connecting the first retaining portion and the second retaining portion, and the first flange abuts against the first retaining portion.
6. The sounding unit according to claim 5, wherein the protrusion includes an arc-shaped middle portion and an extending portion extending from an end of the middle portion, the extending portion extends vertically from one end of the middle portion to a position away from the connecting portion and along a vibration direction, the extending portion includes a first extending portion away from the retaining groove and a second extending portion close to the retaining groove, the middle portion is fixed in abutment with the connecting portion, and the second extending portion is fixed in abutment with the second retaining portion.
7. The sounding unit according to claim 6, wherein the second extending portion includes a holding surface fixed in contact with the second holding portion and an abutting groove recessed from the holding surface to a position away from the second holding portion, and the second holding portion abuts against the abutting groove.
8. The sounding unit according to claim 7, wherein a width between a surface of the first flange abutted against the first retaining portion and a surface of the second retaining portion abutted against the abutting groove is larger than a width between a surface of the first flange abutted against the first retaining portion and a surface of the abutting groove abutted against the second retaining portion.
9. The sound generating unit as claimed in claim 5, wherein the third retaining portion is spaced apart from the curved portion.
10. The sounding unit according to claim 1, wherein the first conductive member is integrally formed with the frame by injection molding, spot welding or soldering, and the second conductive member is integrally formed with the flexible printed circuit board by surface mounting.
11. The sounding unit according to claim 1, wherein the frame includes an installation portion, the diaphragm is fixedly disposed on one side of the installation portion, the installation surface is disposed on a side of the installation portion away from the diaphragm, the magnetic circuit system includes a lower plate, the lower plate is covered on the installation surface, and a notch is formed in the lower plate, and the notch is used for allowing the first conductive member to be installed on the installation surface.
12. The sounding monomer of claim 11, wherein a leakage hole is formed between the lower plate and the basin frame, the basin frame further comprises a shielding portion, the shielding portion is disposed on one side of the mounting portion away from the diaphragm and is shielded by the leakage hole, the shielding portion and the mounting portion enclose to form a containing groove for containing the first conductive component, and the mounting surface is disposed in the containing groove.
13. A speaker comprising a housing and a sound generating unit accommodated in the housing, wherein the sound generating unit comprises the sound generating unit of any one of claims 1 to 12.
CN201920614918.3U 2019-04-29 2019-04-29 Sound production monomer and speaker Active CN209897263U (en)

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CN201920614918.3U CN209897263U (en) 2019-04-29 2019-04-29 Sound production monomer and speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920614918.3U CN209897263U (en) 2019-04-29 2019-04-29 Sound production monomer and speaker

Publications (1)

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CN209897263U true CN209897263U (en) 2020-01-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641895A (en) * 2020-06-15 2020-09-08 瑞声科技(新加坡)有限公司 Loudspeaker box
CN112565988A (en) * 2020-12-24 2021-03-26 瑞声新能源发展(常州)有限公司科教城分公司 Loudspeaker and method for manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641895A (en) * 2020-06-15 2020-09-08 瑞声科技(新加坡)有限公司 Loudspeaker box
CN112565988A (en) * 2020-12-24 2021-03-26 瑞声新能源发展(常州)有限公司科教城分公司 Loudspeaker and method for manufacturing the same

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