CN210781334U - Speaker and audio equipment - Google Patents
Speaker and audio equipment Download PDFInfo
- Publication number
- CN210781334U CN210781334U CN201922075460.1U CN201922075460U CN210781334U CN 210781334 U CN210781334 U CN 210781334U CN 201922075460 U CN201922075460 U CN 201922075460U CN 210781334 U CN210781334 U CN 210781334U
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- hole
- loudspeaker
- magnetic
- cavity
- vibration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Abstract
The utility model provides a loudspeaker and audio equipment, the loudspeaker comprises a frame, a rear cover, a sound film, a vibration system and a magnetic circuit system, the vibration system comprises a vibration film, the magnetic circuit system comprises a magnetic bowl, the vibration film, the magnetic bowl and the frame enclose and form an inner cavity; the vibrating diaphragm, the magnetic bowl and the basin frame are enclosed to form an inner cavity, the rear cover is positioned on one side of the magnetic bowl, which is far away from the vibrating diaphragm, and is enclosed with the magnetic bowl to form a rear cavity, and the rear cavity is communicated with the inner cavity; the rear cover is provided with a first through hole, and the sound film is fixed on the rear cover and covers and seals the first through hole. Therefore, the inner cavity is communicated with the rear cavity, and the vibration of the vibrating diaphragm enables the compression of the air in the inner cavity to influence the flow of the air in the rear cavity; because the sound film is an elastic part, the change of the air of the back cavity can cause the vibration of the sound film, thereby enlarging the volume of the back cavity, lowering the F0 (the lowest resonance frequency), further improving the low-frequency sensitivity of the loudspeaker and effectively reducing the power consumption. The utility model provides an audio equipment possesses whole beneficial effect of speaker because of having adopted above-mentioned speaker.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electroacoustic conversion technology field especially relates to a speaker and audio equipment.
[ background of the invention ]
The loudspeaker is a common electronic component and is mainly used for playing audio signals, and the working principle of the loudspeaker is that a voice coil is arranged in a magnetic loop formed by magnets, and the voice coil generates driving force in the vertical direction by current flowing through the voice coil, so that the vibrating diaphragm vibrates, and air vibrates to produce sound.
Along with the progress of science and technology, the popularity of electronic equipment with audio functions (hereinafter referred to as audio equipment) is higher and higher, and especially along with the coming of the 4G and 5G times, the performance requirements of people on the loudspeaker of the audio equipment are higher and higher, however, the existing loudspeaker still has the problems of low-frequency sensitivity and high power consumption, and cannot meet the performance requirements and cost requirements of users on the loudspeaker.
Therefore, there is a need to provide a new speaker to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a loudspeaker to the low frequency sensitivity who solves present loudspeaker is low, the higher technical problem of consumption.
The technical scheme of the utility model as follows:
the loudspeaker comprises a basin frame with an accommodating space, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are accommodated in the accommodating space;
the loudspeaker also comprises a rear cover which is positioned on one side of the magnetic bowl far away from the vibrating diaphragm and forms a rear cavity with the magnetic bowl in an enclosing manner, and the rear cavity is communicated with the inner cavity;
the rear cover is provided with a first through hole, and the loudspeaker further comprises a sound film which is fixed on the rear cover and covers and seals the first through hole.
As an improvement, the magnetic circuit system further comprises a magnet unit fixed on the magnetic bowl, the magnet unit is provided with a second through hole penetrating through the magnet unit along the vibration direction, the magnetic bowl is provided with a third through hole communicated with the second through hole, and the second through hole and the third through hole penetrate through the inner cavity and the rear cavity.
As an improvement, the speaker further includes a breathable diaphragm fixed to the magnetic circuit system, the breathable diaphragm covering at least one of the second through hole and the third through hole.
As an improvement, the first through hole, the second through hole and the third through hole are arranged opposite to each other along the vibration direction of the diaphragm.
As an improvement, the vibration system further comprises a voice coil for driving the vibrating diaphragm to vibrate and sound, the magnet unit comprises a first magnet part provided with the second through hole and a second magnet part surrounding the first magnet part, a magnetic gap is reserved between the first magnet part and the second magnet part, and the voice coil is inserted into the magnetic gap and surrounds the first magnet part.
As an improvement, the vibrating diaphragm comprises a ball top positioned in the middle and a folding ring fixedly connected with the ball top, and the folding ring is connected with the basin stand.
As an improvement, the speaker further includes a damper, and the damper is electrically connected to the voice coil and the external circuit.
As an improvement, the sound diaphragm includes a flat plate portion at a middle position and a bent portion surrounding the flat plate portion.
As an improvement, a leakage hole is formed in the rear cover and is communicated with the rear cavity and the external space.
The utility model also provides an audio equipment, audio equipment includes above-mentioned speaker.
The utility model provides a speaker's beneficial effect lies in: because the inner cavity is communicated with the rear cavity, the vibration of the vibrating diaphragm enables the compression of the air in the inner cavity to influence the flow of the air in the rear cavity; the change of the air in the back cavity can cause the vibration of the sound film, so that the volume of the back cavity can be enlarged, F0, namely the lowest resonance frequency, is reduced, the low-frequency sensitivity of the loudspeaker is improved, and the power consumption is effectively reduced.
The utility model provides an audio equipment is because of having adopted above-mentioned speaker to possess whole beneficial effect of speaker, no longer repeated here.
[ description of the drawings ]
Fig. 1 is a first schematic structural diagram of a speaker according to the present invention;
fig. 2 is a schematic structural diagram ii of a speaker according to the present invention;
fig. 3 is a schematic top view of a speaker according to the present invention;
FIG. 4 is a schematic sectional view taken along line A-A in FIG. 3;
fig. 5 is a schematic diagram of an explosion structure of the speaker according to the present invention;
fig. 6 is a schematic diagram of an explosion structure of the speaker according to the present invention.
[ detailed description ] embodiments
It should be noted that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 6, the present invention discloses a speaker 10, which includes a frame 100, a vibration system 200, a magnetic circuit 300, a back cover 400 and a sound film 500. The frame 100 has an accommodating space 110, the vibration system 200 and the magnetic circuit system 300 are both accommodated in the accommodating space 110, and the magnetic circuit system 300 drives the vibration system 200 to vibrate and generate sound.
Specifically, the vibration system 200 includes a vibrating diaphragm 210 and a voice coil 220, the vibrating diaphragm 210 is fixed to the frame 100 and is used for vibrating and sounding, the magnetic circuit system 300 includes a magnet unit 320 and a magnetic bowl 310, the magnetic bowl 310 is fixed to the frame, in this embodiment, the vibrating diaphragm 210, the magnetic bowl 310 and the frame 100 enclose to form an inner cavity 11, the rear cover 400 is connected to the frame 100 and is located on one side of the magnetic bowl 310 away from the vibrating diaphragm 210, the rear cover 400 and the magnetic bowl 310 enclose to form a rear cavity 12, and the inner cavity 11 and the rear cavity 12 are communicated with each other; in addition, a first through hole 410 is opened on the back cover 400, the first through hole 410 communicates the back cavity 12 with the external space, the sound membrane 500 is connected to the back cover 400 and covers the first through hole 410, and preferably, the sound membrane 500 is an elastic member.
Thus, because the inner cavity 11 is communicated with the back cavity 12, the vibration of the diaphragm 210 enables the air in the inner cavity 11 to be compressed to drive the air in the back cavity 12 to flow, and the change of the air in the back cavity 12 can cause the vibration of the sound film 500, so that the volume of the back cavity 12 is increased, the F0 (the lowest resonance frequency) is reduced, the low-frequency sensitivity of the loudspeaker 10 is further improved, and the power consumption is effectively reduced. In one embodiment of the present invention, a gap is left between the periphery of the magnetic bowl 310 and the frame 100, and the inner cavity 11 can communicate with the rear cavity 12 through the gap between the magnetic bowl 310 and the frame 100.
Preferably, the sound diaphragm 500 is bonded to the rear cover 400 by gluing.
In one embodiment, the sound membrane 500 is a flat plate. Therefore, the processing and assembling difficulty is low, and the cost is saved.
In another embodiment, the sound diaphragm 500 includes a flat plate portion 510 at the middle position and a bent portion 520 surrounding the flat plate portion 510, the bent portion 520 is connected to the flat plate portion 510 and is looped, and in this embodiment, the bent portion 520 protrudes from the flat plate portion 510 toward the direction away from the rear cavity 12, so that the volume of the rear cavity 12 can be further increased, the low frequency sensitivity can be optimized, and the power consumption can be reduced.
In an embodiment, the magnet unit 320 is fixed to the magnetic bowl 310, specifically, the magnet unit 320 is stacked on one side of the magnetic bowl 310 close to the diaphragm 210, wherein the magnet unit 320 is provided with a second through hole 3213, the magnetic bowl 310 is provided with a third through hole 311 communicated with the second through hole 3213, that is, the second through hole 3213 and the third through hole 311 penetrate through the inner cavity 11 and the rear cavity 12; the inner chamber 11 and the rear chamber 12 communicate with each other through the second through hole 3213 and the third through hole 311.
In an embodiment, in the vibration direction of the diaphragm 210, the first through hole 410, the second through hole 3213, and the third through hole 311 are opposite to each other. Thus, the air flow change in the inner cavity 11 can affect the air movement in the back cavity 12 to a greater extent, and more directly affect the vibration of the sound film 500, so that the volume of the back cavity 12 is expanded to a greater extent in the vibration and sound production process of the diaphragm 210, thereby further optimizing the low-frequency sensitivity of the loudspeaker 10 and reducing the power consumption.
In an embodiment, the speaker 10 further includes a permeable membrane 700 fixed to the magnetic circuit 300, the permeable membrane 700 is connected to the magnet unit 320 and blocks the second through hole 3213, so as to satisfy the condition that the inner cavity 11 communicates with the rear cavity 12, and also perform a certain blocking function, so that the gas communication speed between the inner cavity 11 and the rear cavity 12 is maintained within a certain range, and the sound quality of the speaker 10 is ensured.
In other embodiments of the present invention, the air permeable membrane 700 covers at least one of the second through hole 3213 and the third through hole 311, that is, the air permeable membrane 700 may be only disposed on the magnetic bowl 310 to cover the third through hole 311, or two air permeable membranes 700 are respectively fixed on the main magnet steel 3211 and the magnetic bowl 310 to cover the second through hole 3213 and the third through hole 311, which is not limited herein.
In an embodiment, the magnet unit 320 includes a first magnet portion 321 and a second magnet portion 322, wherein the second magnet portion 322 is disposed around the first magnet portion 321, and a magnetic gap 324 is left between the first magnet portion 321 and the second magnet portion 322, that is, the gap left between the first magnet portion 321 and the second magnet portion 322 satisfies a condition that magnetic induction exists therebetween. In addition, in the present embodiment, at least one of the first magnet portion 321 and the second magnet portion 322 is a permanent magnet.
One end of the voice coil 220 is inserted into the magnetic gap, and the other end of the voice coil 220 is in contact with the diaphragm 210, so that the current flowing through the voice coil 220 after being electrified is placed in the magnetic induction line between the first magnet portion 321 and the second magnet portion 322, and the current change can generate corresponding electromagnetic induction force, thereby driving the diaphragm 210 to vibrate and sound.
In an embodiment, the first magnet portion 321 includes a main magnetic steel 3211 and a main pole core 3212, the main pole core 3212 is stacked on a side of the main magnetic steel 3211 close to the diaphragm 210, and the air-permeable diaphragm 700 is sandwiched between the main pole core 3212 and the main magnetic steel 3211; the second magnet portion 322 includes two pairs of magnetic steels 3221 and two side magnetic steels 3222, wherein the two pairs of magnetic steels 3221 are respectively located at the left and right sides of the main magnetic steel 3211, and the two side magnetic steels 3222 are respectively located at the front and back sides of the main magnetic steel 3211.
In addition, in an embodiment, the magnet unit 320 further includes an upper clamping plate 323, the upper clamping plate 323 is stacked on a side of the two pairs of magnetic steels 3221 and the two sides of the magnetic steels 3222 close to the diaphragm 210, and is connected to the frame 100, so as to fix positions of the two pairs of magnetic steels 3221 and the two sides of the magnetic steels 3222.
In an embodiment, the magnetic bowl 310 includes a bottom plate and two side plates connected to two opposite ends of the bottom plate, the two side plates extend towards the direction of the diaphragm 210 relative to the plane of the bottom plate to form a groove, and the main magnetic steel 3211, the auxiliary magnetic steel 3221, and the side magnetic steel 3222 are all disposed in the groove. Thereby making the internal structure of the speaker 10 more compact and stable, optimizing the space occupation, and also improving the reliability of the structure.
In an embodiment, the diaphragm 210 includes a dome 211 at a middle position and a ring 212 fixedly connected to the dome 211, that is, the ring 212 is connected to the periphery of the dome 211, and the ring 212 is connected to the frame 100, so as to indirectly position the dome 211, and the dome 211 is in contact fit with an end of the voice coil 220 protruding out of the magnetic gap 324. In addition, the folding ring 212 is bent and extended from the plane of the spherical top 211 to the direction of the rear cavity 12.
In one embodiment, the speaker 10 further includes a centering pad 900, the centering pad 900 is a conductive member, and is disposed on two opposite sides of the voice coil 220 and electrically connected to the voice coil 220, and one end of the centering pad 900 extends out of the frame 100 for electrically connecting to an external power source, i.e., the centering pad 900 electrically connects the voice coil 220 and an external circuit. In this embodiment, the damper 900 functions to stabilize the vibration on the one hand, and functions to conduct electricity by introducing electrical energy to the voice coil 220 on the other hand.
In one embodiment, the rear cover 400 is provided with a leakage hole 420, the leakage hole 411 communicates with the rear cavity 12 and the external space, and the leakage hole 420 is covered by a gas permeable membrane 430. Therefore, an effective pressure relief effect can be achieved.
In one embodiment, the speaker 10 further includes a front cover 800, the front cover 800 includes a shielding plate 820 and a front frame 810, wherein the front frame 810 is connected to the periphery of the shielding plate 820 and connected to the frame 100, and the shielding plate 820 is opened with a sound outlet 821, and the sound outlet 821 is opposite to the dome 211. Thus, on one hand, the ball top 211 and the folding ring 212 are protected to a certain extent, and on the other hand, the sound generated by the vibration of the ball top 211 is conveniently and smoothly transmitted. Preferably, the shutter 820 is a metal member, and four sound holes 821 are provided.
The utility model provides an audio equipment, including above-mentioned speaker 10, therefore possessed the whole beneficial effects that above-mentioned speaker 10 had, no longer repeated here.
The above are only embodiments of the present invention, 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 (10)
1. A loudspeaker, characterized by: the loudspeaker comprises a basin frame with an accommodating space, and a vibration system and a magnetic circuit system which are accommodated in the accommodating space, wherein the vibration system comprises a vibrating diaphragm which is fixed on the basin frame and used for vibrating and sounding, and the magnetic circuit system comprises a magnetic bowl which is fixed on the basin frame;
the loudspeaker also comprises a rear cover which is positioned on one side of the magnetic bowl far away from the vibrating diaphragm and forms a rear cavity with the magnetic bowl in an enclosing manner, and the rear cavity is communicated with the inner cavity;
the rear cover is provided with a first through hole, and the loudspeaker further comprises a sound film which is fixed on the rear cover and covers and seals the first through hole.
2. The loudspeaker of claim 1, wherein: the magnetic circuit system further comprises a magnet unit fixed on the magnetic bowl, the magnet unit is provided with a second through hole penetrating through the magnet unit along the vibration direction, the magnetic bowl is provided with a third through hole communicated with the second through hole, and the second through hole and the third through hole penetrate through the inner cavity and the rear cavity.
3. The loudspeaker of claim 2, wherein: the loudspeaker also comprises a breathable diaphragm fixed on the magnetic circuit system, and the breathable diaphragm covers and seals at least one of the second through hole and the third through hole.
4. The loudspeaker of claim 2, wherein: the first through hole, the second through hole and the third through hole are arranged oppositely along the vibration direction of the vibrating diaphragm.
5. The loudspeaker of claim 2, wherein: the vibration system further comprises a voice coil for driving the vibrating diaphragm to vibrate and sound, the magnet unit comprises a first magnet part and a second magnet part, the first magnet part is provided with a second through hole, the second magnet part is provided with a second magnet part, a magnetic gap is reserved between the first magnet part and the second magnet part, and the voice coil is inserted into the magnetic gap and surrounds the first magnet part.
6. The loudspeaker of claim 5, wherein: the vibrating diaphragm comprises a ball top located in the middle and a folding ring fixedly connected with the ball top, and the folding ring is connected with the basin frame.
7. The loudspeaker of claim 5, wherein: the loudspeaker further comprises a centering branch piece, and the centering branch piece is electrically connected with the voice coil and an external circuit.
8. The loudspeaker according to any one of claims 1 to 7, wherein: the sound membrane comprises a flat plate part located in the middle and a bending part surrounding the flat plate part.
9. The loudspeaker according to any one of claims 1 to 7, wherein: and a leakage hole is formed in the rear cover and is communicated with the rear cavity and the external space.
10. An audio device, characterized by: the audio device comprising a loudspeaker according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922075460.1U CN210781334U (en) | 2019-11-25 | 2019-11-25 | Speaker and audio equipment |
| PCT/CN2019/122970 WO2021103070A1 (en) | 2019-11-25 | 2019-12-04 | Speaker and audio device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922075460.1U CN210781334U (en) | 2019-11-25 | 2019-11-25 | Speaker and audio equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210781334U true CN210781334U (en) | 2020-06-16 |
Family
ID=71049301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922075460.1U Active CN210781334U (en) | 2019-11-25 | 2019-11-25 | Speaker and audio equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210781334U (en) |
| WO (1) | WO2021103070A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836175A (en) * | 2020-06-24 | 2020-10-27 | 瑞声科技(新加坡)有限公司 | Micro loudspeaker |
| WO2022000519A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022061987A1 (en) * | 2020-09-25 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure and mobile terminal |
| WO2022061985A1 (en) * | 2020-09-25 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure and mobile terminal |
| WO2022061986A1 (en) * | 2020-09-25 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box and mobile terminal |
| CN117425114A (en) * | 2023-12-18 | 2024-01-19 | 瑞声光电科技(常州)有限公司 | Integrated sounding assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111147986A (en) * | 2020-02-28 | 2020-05-12 | 歌尔股份有限公司 | Sound producing device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1500711A (en) * | 1974-01-26 | 1978-02-08 | Tiefenbrun I | Loudspeaker systems |
| JP3154214B2 (en) * | 1992-09-25 | 2001-04-09 | ソニー株式会社 | headphone |
| CN104185102A (en) * | 2013-05-21 | 2014-12-03 | 宝德科技股份有限公司 | Tuning earphone |
| CN208836403U (en) * | 2018-09-17 | 2019-05-07 | 瑞声科技(沭阳)有限公司 | Loudspeaker mould group |
| CN209390330U (en) * | 2018-12-27 | 2019-09-13 | 瑞声科技(新加坡)有限公司 | A kind of loudspeaker |
-
2019
- 2019-11-25 CN CN201922075460.1U patent/CN210781334U/en active Active
- 2019-12-04 WO PCT/CN2019/122970 patent/WO2021103070A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836175A (en) * | 2020-06-24 | 2020-10-27 | 瑞声科技(新加坡)有限公司 | Micro loudspeaker |
| WO2022000519A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022061987A1 (en) * | 2020-09-25 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure and mobile terminal |
| WO2022061985A1 (en) * | 2020-09-25 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure and mobile terminal |
| WO2022061986A1 (en) * | 2020-09-25 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box and mobile terminal |
| CN117425114A (en) * | 2023-12-18 | 2024-01-19 | 瑞声光电科技(常州)有限公司 | Integrated sounding assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021103070A1 (en) | 2021-06-03 |
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