CN213126461U

CN213126461U - Sound production monomer, speaker and electronic terminal

Info

Publication number: CN213126461U
Application number: CN202022142183.4U
Authority: CN
Inventors: 吴军; 杨虎虎; 任圣
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-04
Anticipated expiration: 2030-09-25
Also published as: WO2022062033A1

Abstract

The utility model provides a sounding monomer, a loudspeaker and an electronic terminal, wherein the sounding monomer comprises a basin frame with a containing cavity, a magnet yoke, a first magnetic circuit component, a second magnetic circuit component, a first vibration system and a second vibration system which are contained in the basin frame; the magnetic yoke comprises a bottom part fixed with the first magnetic circuit assembly, a side part formed by bending and extending from the outer periphery of the bottom part towards the first vibration system, and a top part formed by bending and extending from one end of the side part far away from the bottom part towards the basin stand and fixed on the basin stand; the bottom and the side part enclose to form a first mounting cavity for accommodating the first magnetic circuit assembly, the first vibration system is fixed at the top, and the first magnetic circuit assembly drives the first vibration system to vibrate and sound; the basin frame with the yoke encloses to close and forms the second installation cavity that is used for acceping and fixes second magnetic circuit subassembly, and second vibration system is fixed in the basin frame and keeps away from the one end at top, second magnetic circuit subassembly drive second vibration subassembly vibration sound production.

Description

Sound production monomer, speaker and electronic terminal

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic field especially relates to a sound production monomer, speaker and electronic terminal.

[ background of the invention ]

In the current mobile internet era, the number of intelligent mobile terminal devices is increasing continuously, and the requirements for mobile terminals are higher and higher, one of which is the sound quality function requiring high quality.

The loudspeaker in the related art mostly has only one diaphragm, and in order to improve the acoustic performance of the loudspeaker, two loudspeakers are usually placed in an overlapping manner in the related art, but the space occupied by the loudspeakers is too large by the overlapping placement of the two loudspeakers, so that the thickness of the terminal is too large, and the terminal cannot conform to the development trend that the thickness of the terminal is thinner and thinner.

Therefore, it is necessary to provide a new sound generating unit, a speaker and an electronic terminal to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide a sound production monomer, speaker and electron terminal, this speaker acoustic performance is better, and the volume is littleer.

The technical scheme of the utility model as follows: a loudspeaker, the said sound production monomer includes the basin frame with containing cavity pocket, yoke fixed to said basin frame, first vibration system fixed to said yoke, second vibration system fixed to said basin frame, locate on one side of said yoke and with said first vibration system relatively spaced first magnetic circuit assembly set up and locate on another side of said yoke and with said second vibration system relatively spaced second magnetic circuit assembly set up;

the magnetic yoke comprises a bottom part fixed with the first magnetic circuit assembly, a side part formed by bending and extending from the outer periphery of the bottom part towards the first vibration system, and a top part formed by bending and extending from one end of the side part far away from the bottom part towards the basin stand and fixed on the basin stand; the bottom and the side part enclose to form a first mounting cavity for accommodating the first magnetic circuit component, the first vibration system is fixed at the top, and the first magnetic circuit component drives the first vibration system to vibrate and sound; the basin frame and the magnet yoke enclose to form a second mounting cavity for accommodating and fixing the second magnetic circuit component, the second vibration system is fixed at one end of the basin frame far away from the top, and the second magnetic circuit component drives the second vibration component to vibrate and sound.

As an embodiment of the utility model, first magnetic circuit assembly including set up in the bottom orientation the first main magnet steel of one side central authorities of lateral part, set up in the bottom orientation on one side of lateral part and encircle first main magnet steel sets up with the first auxiliary magnet steel that forms first magnetic gap, attached in the first main pole core and the encirclement of first main magnet steel top first main pole core is attached first auxiliary pole core on the first auxiliary magnet steel, first auxiliary magnet steel and the periphery butt of first auxiliary pole core is in the lateral part orientation on one side of bottom.

As an embodiment of the utility model, first vibration system is including first vibrating diaphragm and the drive that is used for the vibration sound production first voice coil loudspeaker voice coil of first vibrating diaphragm vibration sound production, first voice coil loudspeaker voice coil suspension in the first magnetic gap, first vibrating diaphragm is fixed in on the top.

As an embodiment of the utility model, first vibrating diaphragm includes first dog collar portion, certainly first fixed part that first dog collar portion outer peripheral edge extension formed and certainly first bulb top portion that first dog collar portion inner peripheral edge extension formed, first fixed part is fixed in on the top, first bulb top butt is in on the first sound ring.

As an embodiment of the utility model, the second magnetic circuit subassembly including set up in the bottom deviates from the second main magnetic steel of one side central authorities of lateral part, set up in the top orientation on one side of lateral part and encircle the second main magnetic steel sets up with the vice magnet steel of second that forms the second magnetic gap, attach in the second main pole core and the encirclement of second main magnetic steel top the second main pole core is attached the vice utmost point core of second on the vice magnet steel of second, the vice magnet steel of second and the periphery butt of the vice utmost point core of second is in just press from both sides on the inner wall of basin frame and be located the lateral part with between the basin frame.

As an embodiment of the utility model, the top orientation one side of lateral part is fixed in on the basin frame, the second vibration system is including second vibrating diaphragm and the drive that is used for vibrating the sound production the second voice coil loudspeaker voice coil of second vibrating diaphragm vibration sound production, the second voice coil loudspeaker voice coil suspension in the second magnetic gap, the second vibrating diaphragm is fixed in the basin frame is kept away from serve at the top.

As an embodiment of the utility model, the second vibrating diaphragm includes second flange portion, certainly the second fixed part that the second flange portion outer peripheral edge formed of extending reaches certainly the second bulb portion that the second flange portion inner peripheral edge formed of extending, the second fixed part is fixed in the basin frame is kept away from serve at the top, second bulb portion butt is in on the second ring.

The utility model discloses a another technical scheme as follows: a loudspeaker comprises a shell with a containing space and a sound generating single body which is contained and fixed in the containing space and is described in any one of the above embodiments.

As an embodiment of the present invention, the housing includes a bottom wall and a top cover disposed opposite to each other at an interval, and a side wall formed by bending and extending the bottom wall toward the top cover, the top cover is disposed on an end of the side wall toward the top cover, and the bottom wall, the side wall and the top cover enclose the accommodating space;

the diapire is close to one side court of top cap the protruding barricade that is equipped with of top cap direction, the barricade encloses to close and forms and is used for acceping the chamber is acceptd to the sound production monomer, the outer wall butt of basin frame is in on the inner wall of barricade.

As an embodiment of the present invention, the casing further includes a bottom cover opposite to the top cover and disposed at an interval, the bottom wall is provided with an opening communicating with the accommodating cavity at a position corresponding to the sounding unit, and the bottom cover is disposed on one end of the retaining wall facing the bottom wall and covers the opening;

the first vibration system and the top cover are opposite and arranged at intervals to form a first front sound cavity, and the second vibration system and the bottom cover are opposite and arranged at intervals to form a second front sound cavity.

As an embodiment of the present invention, the speaker further includes a first sound channel penetrating through the side wall and communicating with the first front sound cavity and a second sound channel penetrating through the side wall and communicating with the second front sound cavity, the first sound channel and the second sound channel are located on the same side of the side wall.

Another aspect of the present invention provides an electronic terminal, including a terminal body and a speaker as described in any of the above embodiments, wherein the speaker is disposed on the terminal body.

The beneficial effects of the utility model reside in that: the sound production monomer includes first vibration system, the second vibration system, first magnetic circuit subassembly and second magnetic circuit subassembly, make the speaker in this embodiment have two vibration systems, thereby can improve acoustic performance, in addition, fix first magnetic circuit subassembly and second magnetic circuit subassembly respectively through the both sides at a yoke, compare in the mode of placing two speaker superpositions in the correlation technique, the speaker in this embodiment reduces the shared space of a yoke, and then when making the volume of the speaker in this embodiment littleer, acoustic performance is better.

[ description of the drawings ]

Fig. 1 is a schematic overall structure diagram of a speaker according to an embodiment of the present invention;

FIG. 2 is a schematic view of the entire structure of the sounding unit in FIG. 1;

FIG. 3 is an exploded view of the sound generating unit of FIG. 2;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 5 is a schematic view of the yoke of FIG. 2;

FIG. 6 is an exploded view of the housing of FIG. 1;

FIG. 7 is a schematic view of a portion of the structure of FIG. 6;

fig. 8 is a schematic view of an overall structure of an electronic terminal according to an embodiment of the present invention;

[ detailed description ] embodiments

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1-7, an embodiment of the present invention provides a speaker 1, in which the speaker 1 includes a housing 10 having an accommodating space 11 and a sound generating unit 20 accommodated and fixed in the accommodating space 11.

Referring to fig. 2-4, the sounding unit 20 in this embodiment includes a frame 21 having a cavity, a yoke 22 fixed in the frame 21, a first vibration system 25 fixed to the yoke 22, a second vibration system 26 fixed to the frame 21, a first magnetic circuit assembly 23 disposed on one side of the yoke 22 and spaced from the first vibration system 25, and a second magnetic circuit assembly 24 disposed on the other side of the yoke 22 and spaced from the second vibration system 26, wherein the first magnetic circuit assembly 23 is configured to drive the first vibration system 25 to vibrate and sound, and the second magnetic circuit assembly 24 is configured to drive the second vibration system 26 to vibrate and sound. In the present embodiment, by housing the first vibration system 25, the second vibration system 26, the first magnetic circuit assembly 23, and the second magnetic circuit assembly 24 in the housing 10, the speaker 1 in the present embodiment has two vibration systems, and thus the acoustic performance can be improved.

Preferably, the frame 21 is annular.

Referring to fig. 2 to 5, the magnetic yoke 22 in this embodiment includes a bottom 221 fixed to the first magnetic circuit assembly 23, a side 222 formed by bending and extending from an outer periphery of the bottom 221 toward the first vibration system 25, and a top 223 formed by bending and extending from an end of the side 222 away from the bottom 221 toward the basin frame 21 and fixed to the basin frame, the bottom 221 and the side 222 enclose a first mounting cavity 224 for receiving and fixing the first magnetic circuit assembly 23, the first vibration system 25 is fixed to the top 223, the basin frame 21 and the magnetic yoke 22 enclose a second mounting cavity 211 for receiving and fixing the second magnetic circuit assembly 24, specifically, one side of the top 223 toward the side 222 is fixed to the basin frame 21, the first vibration system 25 is fixed to the top 223, and the second vibration system 26 is fixed to an end of the basin frame 21 away from the top 223. Through fixing first magnetic circuit component 23 and second magnetic circuit component 24 respectively in the both sides of a yoke 22, compare in the mode of placing two speaker 1 superpositions in the correlation technique, speaker 1 in this embodiment not only reduces the space that a casing 10 took up, still reduces the space that a yoke 22 took up, and then makes speaker 1 in this embodiment the volume when littleer, and acoustic performance is better.

Referring to fig. 3 and 4, in an embodiment, the first magnetic circuit assembly 23 includes a first main magnetic steel 231 disposed on a side of the bottom 221 facing the side portion 222, a first sub magnetic steel 233 disposed on the side of the bottom 221 facing the side portion 222 and surrounding the first main magnetic steel 231 to form a first magnetic gap 232, a first main pole core 234 attached above the first main magnetic steel 231, and a first sub pole core 235 surrounding the first main pole core 234 and attached to the first sub magnetic steel 233, wherein peripheries of the first sub magnetic steel 233 and the first sub pole core 235 abut against a side of the side portion 222 facing the bottom portion 221.

Referring to fig. 3 and 4, preferably, the first vibration system 25 includes a first diaphragm 251 for generating sound by vibration and a first voice coil 252 for driving the first diaphragm 251 to generate sound by vibration, the first voice coil 252 is suspended in the first magnetic gap 232, and the first diaphragm 251 is fixed on the top 223.

Referring to fig. 3 and fig. 4, specifically, the first diaphragm 251 includes a first collar portion 2511, a first fixing portion 2512 formed by extending from an outer periphery of the first collar portion 2511, and a first dome portion 2513 formed by extending from an inner periphery of the first collar portion 2511, the first fixing portion 2512 is fixed on the top portion 223, the first fixing portion 2512 is preferably fixed on one end of the top portion 223 close to the side portion 222, and the first dome portion 2513 abuts against the first voice coil 252.

Referring to fig. 3 and 4, in an embodiment, the second magnetic circuit assembly 24 includes a second main magnetic steel 241 disposed at a center of a side of the bottom 221 away from the side portion 222, a second sub magnetic steel 243 disposed on a side of the top 223 facing the side portion 222 and surrounding the second main magnetic steel 241 to form a second magnetic gap 242, a second main pole core 244 attached above the second main magnetic steel 241, and a second sub pole core 245 surrounding the second main pole core 244 and attached on the second sub magnetic steel 243, wherein peripheries of the second sub magnetic steel 243 and the second sub pole core 245 abut against an inner wall of the frame 21 and are sandwiched between the side portion 222 and the frame 21.

Referring to fig. 3 and 4, preferably, the second vibration system 26 includes a second diaphragm 261 for vibrating and generating sound and a second voice coil 262 for driving the second diaphragm 261 to vibrate and generate sound, the second voice coil 262 is suspended in the second magnetic gap 242, and the second diaphragm 261 is fixed to an end of the basin stand 21 away from the top 223.

Referring to fig. 3 and 4, specifically, the second diaphragm 261 includes a second flange portion 2611, a second fixing portion 2612 formed by extending from an outer peripheral edge of the second flange portion 2611, and a second ball-top portion 2613 formed by extending from an inner peripheral edge of the second flange portion 2611, the second fixing portion 2612 is fixed on one end of the basin frame 21 away from the top portion 223, and the second ball-top portion 2613 abuts against the second voice coil 262.

Referring to fig. 4, in the sound generating unit 20 of the present embodiment, the first vibration system 25 is accommodated in the first mounting cavity 224, the second vibration system 26 is accommodated in the second mounting cavity 211, the first fixing portion 2512 is fixed on one end of the top portion 223 close to the side portion 222, and the second fixing portion 2612 is fixed on the frame 21, so that the sizes of the first vibrating diaphragm 251 and the second vibrating diaphragm 261 are different in the present embodiment, and thus the sound generating frequency bands of the first vibrating diaphragm 251 and the second vibrating diaphragm 261 are different, so that the sound generating unit 20 of the present embodiment includes the sound generating frequency band of the first vibrating diaphragm 251 and the sound generating frequency band of the second vibrating diaphragm 261 at the same time, the sound generating frequency band of the sound generating unit 20 of the present embodiment is wider, and the acoustic performance of the speaker 1 of the present embodiment is further improved.

Referring to fig. 6 and 7, in an embodiment, the housing 10 includes a bottom wall 12 and a top cover 13 disposed opposite to each other at an interval, and a side wall 14 formed by bending and extending from the bottom wall 12 to the top cover 13, the top cover 13 is disposed on an end of the side wall 14 facing the top cover 13, and the bottom wall 12, the side wall 14 and the top cover 13 enclose an accommodating space 11.

Referring to fig. 6 and 7, preferably, a retaining wall 15 is convexly disposed on one side of the bottom wall 12 close to the top cover 13 toward the top cover 13, the retaining wall 15 encloses a housing cavity 151 for housing the sounding unit 20, and an outer wall of the basin stand 21 abuts against an inner wall of the retaining wall 15.

Referring to fig. 7, preferably, the retaining wall 15 is spaced apart from the sidewall 14 to form an annular cavity 152.

Referring to fig. 6 and 7, in an embodiment, the housing 10 further includes a bottom cover 16 opposite to the top cover 13 and disposed at an interval, the bottom wall 12 is opened with an opening 121 communicating with the accommodating cavity 151 at a position corresponding to the sound generating unit 20, and the bottom cover 16 covers an end of the retaining wall 15 facing the bottom wall 12 and covers the opening 121.

Referring to fig. 4, in an embodiment, the first vibration system 25 is disposed opposite to the top cover 13 at an interval to form a first front sound cavity 131, and the second vibration system 26 is disposed opposite to the bottom cover 16 at an interval to form a second front sound cavity 161. Specifically, the first diaphragm 251 is disposed opposite to the top cover 13 at an interval to form a first front acoustic cavity 131, and the first diaphragm 251 is disposed opposite to the bottom cover 16 at an interval to form a second front acoustic cavity 161.

Referring to fig. 2, in an embodiment, the first diaphragm 251, the second diaphragm 261 and the frame 21 enclose to form a rear acoustic cavity 212, and the rear acoustic cavity 212 is communicated with the annular cavity 152.

Referring to fig. 1, fig. 6 and fig. 7, in an embodiment, the speaker 1 further includes a first sound emitting channel 141 penetrating the sidewall 14 and communicating with the first front sound cavity 131, and a second sound emitting channel 142 penetrating the sidewall 14 and communicating with the second front sound cavity 161, and preferably, the first sound emitting channel 141 and the second sound emitting channel 142 are located on the same side of the sidewall 14.

In the present embodiment, by housing the first vibration system 25, the second vibration system 26, and the magnetic circuit assembly in the housing 10, the sound emitted from the first vibration system 25 and the sound emitted from the second vibration system 26 are emitted from the first sound emission path 141 and the second sound emission path 142, respectively, so that the acoustic performance of the speaker 1 in the present embodiment is improved.

Referring to fig. 8, another embodiment of the present invention provides an electronic terminal, which includes a terminal body 3 and a speaker 1 as in any of the above embodiments, the speaker 1 is disposed on the terminal body 3, in the speaker 1 of the above embodiments, the first vibration system 25 and the second vibration system 26 are accommodated in the housing 10, so that the speaker 1 has two vibration systems, thereby improving the acoustic performance, and in addition, compared with the related art in which two speakers 1 are stacked, the speaker 1 of the present embodiment not only reduces the space occupied by one housing 10, but also reduces the space occupied by one yoke 22, thereby making the volume of the speaker 1 smaller, and the acoustic performance better, so that the acoustic performance of the electronic terminal of the present embodiment is better, and it is not necessary to set the thickness of the electronic terminal in the present embodiment to be excessively large.

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

1. A sounding monomer is characterized by comprising a basin frame with a containing cavity, a magnet yoke fixed in the basin frame, a first vibration system fixed on the magnet yoke, a second vibration system fixed on the basin frame, a first magnetic circuit assembly arranged on one side of the magnet yoke and opposite to the first vibration system at a certain interval, and a second magnetic circuit assembly arranged on the other side of the magnet yoke and opposite to the second vibration system at a certain interval;

2. The sound generating unit of claim 1, wherein: the first magnetic circuit component comprises a first main magnetic steel arranged at the bottom and facing the center of one side of the side portion, a first auxiliary magnetic steel arranged at the bottom and facing one side of the side portion and surrounding the first main magnetic steel to form a first magnetic gap, a first main pole core attached above the first main magnetic steel, and a first auxiliary pole core surrounding the first main pole core and attached to the first auxiliary magnetic steel, wherein the peripheries of the first auxiliary magnetic steel and the first auxiliary pole core are abutted against one side of the side portion facing the bottom.

3. The sound generating unit of claim 2, wherein: first vibration system is including being used for vibrating the first vibrating diaphragm of sound production and drive first voice coil loudspeaker voice coil of first vibrating diaphragm vibration sound production, first voice coil loudspeaker voice coil suspend in the first magnetic gap, first vibrating diaphragm is fixed in on the top.

4. A sound generating unit as claimed in claim 3, characterized in that: the first diaphragm comprises a first folding ring part, a first fixing part and a first ball top, wherein the first fixing part is formed by extending the outer periphery of the first folding ring part, the first ball top is formed by extending the inner periphery of the first folding ring part, the first fixing part is fixed on the top, and the first ball top is abutted to the first diaphragm.

5. The sound generating unit of claim 1, wherein: the second magnetic circuit subassembly including set up in the bottom deviates from the second main magnet steel of one side central authorities of lateral part, set up in the top orientation on one side of lateral part and encircle the second main magnet steel sets up in order to form the second magnetic gap the second vice magnet steel, attached in the second main pole core of second main magnet steel top and encircle the second main pole core and attached the second vice pole core on the vice magnet steel of second, the vice magnet steel of second and the periphery butt of the vice pole core of second is in just press from both sides and locate on the inner wall of basin frame the lateral part with between the basin frame.

6. The sound generating unit of claim 5, wherein: the top orientation one side of lateral part is fixed in on the basin frame, second vibration system is including the second vibrating diaphragm that is used for the vibration sound production and drive the second voice coil loudspeaker voice coil of second vibrating diaphragm vibration sound production, the second voice coil loudspeaker voice coil suspension in the second magnetic gap, the second vibrating diaphragm is fixed in the basin frame is kept away from on the one end at top.

7. The sound generating unit of claim 6, wherein: the second vibrating diaphragm comprises a second flange part, a second fixing part and a second ball top part, wherein the second fixing part is formed by extending the outer periphery of the second flange part, the second ball top part is formed by extending the inner periphery of the second flange part, the second fixing part is fixed on the basin stand and is far away from one end of the top part, and the second ball top part is abutted to the second vibrating diaphragm.

8. A loudspeaker, characterized by: comprises a shell with a containing space and the sounding monomer as claimed in any one of the above claims 1-7 contained and fixed in the containing space.

9. The loudspeaker of claim 8, wherein: the shell comprises a bottom wall, a top cover and a side wall, wherein the bottom wall and the top cover are arranged oppositely and at intervals, the side wall is formed by bending and extending the bottom wall towards the top cover, the top cover is covered on one end, facing towards the top cover, of the side wall, and the bottom wall, the side wall and the top cover enclose the accommodating space;

10. The loudspeaker of claim 9, wherein: the casing further comprises a bottom cover which is opposite to the top cover and arranged at intervals, an opening communicated with the accommodating cavity is formed in the position, corresponding to the sounding monomer, of the bottom wall, and the bottom cover is arranged on one end, facing the bottom wall, of the retaining wall and covers the opening;

11. The loudspeaker of claim 10, wherein: the loudspeaker also comprises a first sound outlet channel which penetrates through the side wall and is communicated with the first front sound cavity and a second sound outlet channel which penetrates through the side wall and is communicated with the second front sound cavity, and the first sound outlet channel and the second sound outlet channel are positioned on the same side of the side wall.

12. An electronic terminal, characterized by: comprising a terminal body and a loudspeaker according to any of the claims 8-11 above, arranged on the terminal body.