CN213661938U - Loudspeaker and electronic terminal - Google Patents
Loudspeaker and electronic terminal Download PDFInfo
- Publication number
- CN213661938U CN213661938U CN202022485075.7U CN202022485075U CN213661938U CN 213661938 U CN213661938 U CN 213661938U CN 202022485075 U CN202022485075 U CN 202022485075U CN 213661938 U CN213661938 U CN 213661938U
- Authority
- CN
- China
- Prior art keywords
- steel ring
- bending
- rod
- welding
- flexible circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a loudspeaker and an electronic terminal, which comprises a basin frame with an accommodating space, a vibration system fixed on the basin frame, a magnetic circuit system for driving the vibration system and a flexible circuit board electrically connected with the vibration system; the basin frame is including enclosing the steel ring that closes and form accommodating space, and the steel ring is at least partly bent and is formed the portion of bending, and the portion of bending overlaps the setting at least partially and forms the welding part that is used for with the welding of flexible circuit board. In this embodiment, the steel ring is at least partly buckled and is formed the portion of bending, and the portion of bending is at least partly overlapped and form and be used for with flexible circuit board welded weld part, because the weld part is formed by the at least partial overlap of the portion of bending, and then make the area of the face of weld part be greater than the area of single steel ring and flexible circuit board contact, and then increased can with flexible circuit board welded area, and then make the welding that flexible circuit board can be stable on the steel ring, greatly reduced the probability of rosin joint, and then make the tone quality of speaker more stable.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electroacoustic field especially relates to a 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.
Some speakers in the correlation technique adopt the steel ring to replace the basin frame, and the flexible circuit board welds on the steel ring usually, but can appear the too little problem of steel ring and flexible circuit board welded part's area of contact, and then lead to flexible circuit board and steel ring welding insecure, and the condition of rosin joint between flexible circuit board and the steel ring takes place occasionally, causes the unstability of tone quality.
Therefore, it is necessary to provide a new speaker and an electronic terminal to solve the above problems.
[ Utility model ] content
An object of the utility model is to provide a speaker and electron terminal, the flexible circuit board welding of this speaker is more firm, and tone quality is more stable.
The technical scheme of the utility model as follows: a loudspeaker comprises a basin frame with a containing space, a vibration system fixed on the basin frame, a magnetic circuit system used for driving the vibration system and a flexible circuit board used for being electrically connected with the vibration system;
the basin frame comprises a steel ring which is enclosed to form the accommodating space, at least part of the steel ring is bent to form a bent part, and at least part of the bent part is overlapped and forms a welding part which is used for welding with the flexible circuit board.
As an embodiment of the utility model, the steel ring is including relative first steel ring and the second steel ring that sets up, the one end of first steel ring is connected on one end of second steel ring, the other end of first steel ring is connected on the other end of second steel ring, first steel ring with second steel ring encloses to close and forms accommodating space, the weld part is formed on first steel ring with on the second steel ring.
As an embodiment of the utility model, the portion of bending include by first steel ring and/or the second steel ring bending formation's first portion of bending and by first steel ring overlaps the second portion of bending that sets up the formation with second steel ring junction, the weld part include by first weld part that first portion of bending at least partially overlaps and forms and by the second weld part that second portion of bending at least partially overlaps and forms.
As an embodiment of the present invention, the first steel ring includes a first rod portion, a second rod portion disposed perpendicular to the first rod portion, a first connecting portion for connecting the first rod portion and the second rod portion, a first end portion formed by bending a free end of the first rod portion, and a second end portion formed by bending a free end of the second rod portion, wherein the first bent portion is formed by at least partially overlapping the first connecting portion; and/or
The second steel ring comprises a third rod part parallel to the first rod part, a fourth rod part perpendicular to the third rod part and parallel to the second rod part, a second connecting part used for connecting the third rod part and the fourth rod part, a third end part formed by bending a free end of the third rod part and a fourth end part formed by bending a free end of the fourth rod part, and the first bending part is formed by at least partially overlapping the second connecting part;
the second bending part is formed by overlapping the first end part and the fourth end part, and/or the second bending part is formed by overlapping the second end part and the third end part.
As an embodiment of the utility model, vibration system is including the vibrating diaphragm that is used for the sound production, the vibrating diaphragm includes the book ring portion, certainly roll over the first fixed part that the outer peripheral edge of ring portion extended the formation, certainly the ball top that the interior peripheral edge of book ring portion extended the formation, the steel ring butt is in on the first fixed part.
As an embodiment of the utility model, the vibrating diaphragm still includes certainly the outer peripheral edge orientation of first fixed part the spacing portion that the steel ring bending type extended formation, the steel ring is kept away from one side at ball top portion butt respectively is in on the spacing portion.
As an embodiment of the present invention, the magnetic circuit system includes a magnetic yoke, and the magnetic yoke is fixed on the steel ring.
As an embodiment of the utility model, the yoke includes second fixed part and the butt portion that is located second fixed part both sides, seted up on the steel ring with second fixed part adaptation is used for the installation the fixed slot of second fixed part, butt portion butt is in the steel ring orientation on one side of accommodating space.
As an embodiment of the utility model, flexible circuit board respectively the butt is in on the steel ring, just flexible circuit board distribute in the both sides that the yoke is relative.
The utility model discloses a another technical scheme as follows: an electronic terminal, comprising a terminal body and the speaker as described in any of the above embodiments, the speaker being disposed on the terminal body.
The beneficial effects of the utility model reside in that: the basin frame is including enclosing the steel ring that closes and form accommodating space, the steel ring is the part of bending at least partly, and the part of bending at least part overlaps and forms the weld part that is used for with the flexible circuit board welded, because the weld part is formed by the at least partial overlap of the part of bending, and then make the area of the face of weld part be greater than the area of single steel ring and flexible circuit board contact, and then increased can with flexible circuit board welded area, and then make the welding that the flexible circuit board can be stable on the steel ring, greatly reduced the probability of rosin joint, and then make the tone quality of speaker more stable.
[ 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 an exploded schematic view of the loudspeaker of FIG. 1;
FIG. 3 is a schematic structural view of the basin stand of FIG. 1;
FIG. 4 is a front view of the basin stand of FIG. 1;
FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;
fig. 6 is a schematic view of an overall structure of an electronic terminal according to an embodiment of the present invention;
1. a speaker; 2. a terminal body; 100. a basin stand; 101. an accommodating space; 110. a steel ring; 111. a first steel ring; 1111. a first rod portion; 1112. a second rod portion; 1113. a first connection portion; 1114. a first end portion; 1115. a second end portion; 112. a second steel ring; 1121. a third rod part; 1122. a fourth rod part; 1123. a second connecting portion; 1124. a third end portion; 1125. a fourth end portion; 113. fixing grooves; 120. welding the part; 121. welding a surface; 122. a first weld; 1221. a first welding surface; 123. a second weld; 1231. a second weld face; 200. a vibration system; 210. vibrating diaphragm; 211. a folded ring part; 212. a first fixed part; 213. a ball top; 214. a limiting part; 300. a magnetic circuit system; 310. a magnetic yoke; 311. a second fixed part; 312. an abutting portion; 400. a flexible circuit board; 410. and a bonding pad.
[ 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. 1-5, an embodiment of the present invention provides a speaker 1, in which the speaker 1 includes a frame 100 having an accommodating space 101, a vibration system 200 fixed on the frame 100, a magnetic circuit 300 for driving the vibration system 200, and a flexible circuit board 400 electrically connected to the vibration system 200.
It should be noted that, in the present embodiment, the part of the vibration system 200 and the part of the magnetic circuit system 300 are not explicitly shown because they do not relate to the invention point, and 200(300) in the drawings refers to not only a part of the structure of the vibration system 200 but also a part of the structure of the magnetic circuit system 300.
Referring to fig. 1 to 5, in an embodiment, the frame 100 includes a steel ring 110 enclosing to form an accommodating space 101, the steel ring 110 is at least partially bent to form a bent portion, and the bent portion is at least partially overlapped to form a welding portion 120 for welding with the flexible circuit board 400. Because the welding part 120 is bending type, and then the area of the welding face 121 of the welding part 120 is larger than the area of the contact between the single steel ring 110 and the flexible circuit board 400, and then the area of the welding with the flexible circuit board 400 is increased, and then the welding that the flexible circuit board 400 can be stable is on the steel ring 110, the probability of the false welding is greatly reduced, and then the tone quality of the loudspeaker 1 is more stable.
Preferably, the bending portions are at least partially overlapped in the horizontal direction to form the soldering portion 120, and the soldering portion 120 has a soldering surface 121 parallel to the horizontal plane and used for soldering with the flexible circuit board 400.
Referring to fig. 2 to 5, in an embodiment, the steel ring 110 includes a first steel ring 111 and a second steel ring 112 disposed opposite to each other, one end of the first steel ring 111 is connected to one end of the second steel ring 112, the other end of the first steel ring 111 is connected to the other end of the second steel ring 112, the first steel ring 111 and the second steel ring 112 enclose the accommodating space 101, and the welding portion 120 is formed on the first steel ring 111 and the second steel ring 112.
Referring to fig. 3 and 5, further, the bent portion includes a first bent portion formed by bending the first steel ring 111 and/or the second steel ring 112 and a second bent portion formed by overlapping a joint of the first steel ring 111 and the second steel ring 112, and the welding portion 120 includes a first welding portion 122 formed by at least partially overlapping the first bent portion and a second welding portion 123 formed by at least partially overlapping the second bent portion. The first soldering part 122 has a first soldering surface 1221 parallel to a horizontal plane and for soldering with the flexible circuit board 400, and the second soldering part 123 has a second soldering surface 1231 parallel to the horizontal plane and for soldering with the flexible circuit board 400. The welding portion 120 in this embodiment may be formed in the middle of the first steel ring 111 and the second steel ring 112, or may be formed at the end of the first steel ring 111 and the second steel ring 112.
Referring to fig. 3 and 5, in an embodiment, the first steel ring 111 includes a first rod portion 1111, a second rod portion 1112 perpendicular to the first rod portion 1111, a first connection portion 1113 for connecting the first rod portion 1111 and the second rod portion 1112, a first end portion 1114 bent from a free end of the first rod portion 1111, and a second end portion 1115 bent from a free end of the second rod portion 1112, wherein the first bent portion is formed by at least partially overlapping the first connection portion 1113; and/or the second steel ring 112 comprises a third rod part 1121 parallel to the first rod part 1111, a fourth rod part 1122 perpendicular to the third rod part 1121 and parallel to the second rod part 1112, a second connecting part 1123 connecting the third rod part 1121 and the fourth rod part 1122, a third end 1124 formed by bending a free end of the third rod part 1121, and a fourth end 1125 formed by bending a free end of the fourth rod part 1122, wherein the first bent part is formed by at least partially overlapping the second connecting part 1123.
Referring to fig. 3 and 5, the second bending portion is formed by overlapping the first end portion 1114 and the fourth end portion 1125, and/or the second bending portion is formed by overlapping the second end portion 1115 and the third end portion 1124.
Preferably, the first end 1114 and the fourth end 1125 are welded together, and particularly, the first end 1114 and the fourth end 1125 are fixed together by laser spot welding; second end 1115 and third end 1124 are welded together, and in particular, second end 1115 and third end 1124 may be fixed together by laser spot welding.
Specifically, the first steel ring 111 and the second steel ring 112 in this embodiment enclose to form a rectangular receiving space 101, and the welding portions 120 are located at four corners of the rectangle, wherein two first welding portions 122 are disposed diagonally and two second welding portions 123 are disposed diagonally.
It should be noted that, in some embodiments, the steel ring 110 is in a closed ring shape, such as a rectangular ring, and the welding portion 120 may be formed at a corner of the rectangular ring or at a straight edge of the rectangular ring.
In one embodiment, the flexible circuit board 400 is soldered to the soldering part 120 through the soldering pad 410.
In an embodiment, the flexible circuit board 400 abuts on the first steel ring 111 and the second steel ring 112 respectively, and preferably, the flexible circuit board 400 is fixed on the first steel ring 111 and the second steel ring 112 by gluing.
In addition, by increasing the welding part 120 formed on the first steel ring 111 and the second steel ring 112, the gluing area of the flexible circuit board 400 and the first steel ring 111 and the second steel ring 112 can be increased, the stability of gluing the flexible circuit board 400 and the first steel ring 111 and the second steel ring 112 is increased, and the flexible circuit board 400 is not easy to fall off from the first steel ring 111 and the second steel ring 112.
Referring to fig. 1 and fig. 2, in an embodiment, the vibration system 200 includes a diaphragm 210 for generating sound and a voice coil for driving the diaphragm 210 to vibrate and generate sound, and the diaphragm 210 is fixed on the first steel ring 111 and the second steel ring 112.
Referring to fig. 2, specifically, the diaphragm 210 includes a ring-folded portion 211, a first fixing portion 212 formed by extending from an outer periphery of the ring-folded portion 211, and a dome portion 213 formed by extending from an inner periphery of the ring-folded portion 211, and the first steel ring 111 and the second steel ring 112 are respectively abutted on the first fixing portion 212.
It should be noted that the horizontal direction in the above embodiment refers to a direction parallel to the ball top 213.
In an embodiment, the diaphragm 210 further includes a limiting portion 214 formed by bending and extending from an outer periphery of the first fixing portion 212 toward the first steel ring 111 and the second steel ring 112, and sides of the first steel ring 111 and the second steel ring 112 away from the ball top 213 abut against the limiting portion 214 respectively.
Referring to fig. 1 and 2, in an embodiment, the magnetic circuit system 300 includes a magnetic yoke 310, a main magnetic steel disposed in the center of the magnetic yoke 310, a sub magnetic steel disposed on the magnetic yoke 310 and surrounding the main magnetic steel to form a magnetic gap, a main pole core attached above the main magnetic steel, and a sub pole core surrounding the main pole core, attached to the sub magnetic steel, and fixed on a bracket, wherein the magnetic yoke 310 is fixed on the steel ring 110, and specifically, the magnetic yoke 310 is fixed on the first steel ring 111 and the second steel ring 112.
Referring to fig. 2 and fig. 3, the yoke 310 further includes a second fixing portion 311 and abutting portions 312 located at two sides of the second fixing portion 311, the steel ring 110 is opened with a fixing groove 113 adapted to the second fixing portion 311 for mounting the second fixing portion 311, and the abutting portions 312 abut on one side of the steel ring 110 facing the accommodating space 101.
Referring to fig. 2 and 3, specifically, the fixing groove 113 is formed on the second rod 1112 and the fourth rod 1122, and the abutting portion 312 abuts on a side of the second rod 1112 facing the ball top 213 and on a side of the fourth rod 1122 facing the ball top 213.
Referring to fig. 1, in an embodiment, flexible circuit boards 400 are disposed on two opposite sides of the magnetic yoke 310.
Specifically, the flexible circuit board 400 is distributed on both sides of the yoke 310 facing the first rod portion 1111 and the third rod portion 1121.
Referring to fig. 6, another embodiment of the present invention provides an electronic terminal, which includes a terminal body 2 and a speaker 1 as in any of the above embodiments, wherein the speaker 1 is disposed on the terminal body 2, in the speaker 1 of the above embodiments, the frame 100 includes a steel ring 110 enclosing to form an accommodating space 101, the steel ring 110 is at least partially bent to form a bent portion, and the bent portion is at least partially overlapped and forms a welding portion 120 for welding with the flexible circuit board 400, because the welding portion 120 is bent, the area of the welding surface 121 of the welding portion 120 is larger than the contact area of the single steel ring 110 and the flexible circuit board 400, thereby increasing the welding area with the flexible circuit board 400, further enabling the flexible circuit board 400 to be stably welded on the steel ring 110, greatly reducing the probability of insufficient welding, and further enabling the sound quality of the speaker 1 to be more stable, and the performance of the electronic terminal using the speaker 1 in the above embodiment is further improved.
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 (10)
1. A loudspeaker, characterized by: the vibration device comprises a basin frame with an accommodating space, a vibration system fixed on the basin frame, a magnetic circuit system used for driving the vibration system and a flexible circuit board used for being electrically connected with the vibration system;
the basin frame comprises a steel ring which is enclosed to form the accommodating space, at least part of the steel ring is bent to form a bent part, and at least part of the bent part is overlapped and forms a welding part which is used for welding with the flexible circuit board.
2. The loudspeaker of claim 1, wherein: the steel ring includes relative first steel ring and the second steel ring that sets up, the one end of first steel ring is connected on the one end of second steel ring, the other end of first steel ring is connected on the other end of second steel ring, first steel ring with the second steel ring encloses to close and forms accommodating space, the welding part is formed on first steel ring with on the second steel ring.
3. The loudspeaker of claim 2, wherein: the portion of bending include by first steel ring and/or the second steel ring is buckled the first portion of bending that forms and by first steel ring overlaps the second portion of bending that sets up the formation with second steel ring junction, the welding part include by first welding part that the at least part of first portion of bending overlapped and formed and by the second welding part that the at least part of second portion of bending overlapped and formed.
4. A loudspeaker according to claim 3, wherein: the first steel ring comprises a first rod part, a second rod part, a first connecting part, a first end part and a second end part, wherein the second rod part is perpendicular to the first rod part, the first connecting part is used for connecting the first rod part and the second rod part, the first end part is formed by bending the free end of the first rod part, the second end part is formed by bending the free end of the second rod part, and the first bending part is formed by at least partially overlapping the first connecting part; and/or
The second steel ring comprises a third rod part parallel to the first rod part, a fourth rod part perpendicular to the third rod part and parallel to the second rod part, a second connecting part used for connecting the third rod part and the fourth rod part, a third end part formed by bending a free end of the third rod part and a fourth end part formed by bending a free end of the fourth rod part, and the first bending part is formed by at least partially overlapping the second connecting part;
the second bending part is formed by overlapping the first end part and the fourth end part, and/or the second bending part is formed by overlapping the second end part and the third end part.
5. The loudspeaker of claim 1, wherein: vibration system is including the vibrating diaphragm that is used for the sound production, the vibrating diaphragm includes roll over ring portion, certainly roll over the first fixed part that ring portion outer peripheral edge extended the formation, certainly roll over the ball top that ring portion's internal periphery extended the formation, the steel loop butt is in on the first fixed part.
6. The loudspeaker of claim 5, wherein: the vibrating diaphragm further comprises a limiting portion formed by bending and extending the outer periphery of the first fixing portion towards the steel ring, and one side, away from the top of the ball, of the steel ring is respectively abutted to the limiting portion.
7. The loudspeaker according to any one of claims 1-6, wherein: the magnetic circuit system comprises a magnetic yoke, and the magnetic yoke is fixed on the steel ring.
8. The loudspeaker of claim 7, wherein: the magnet yoke comprises a second fixing part and abutting parts located on two sides of the second fixing part, a fixing groove matched with the second fixing part and used for installing the second fixing part is formed in the steel ring, and the abutting parts abut against one side, facing the accommodating space, of the steel ring.
9. The loudspeaker of claim 8, wherein: the flexible circuit boards are respectively abutted against the steel rings and distributed on two opposite sides of the magnetic yoke.
10. An electronic terminal, characterized by: comprising a terminal body and a loudspeaker according to any of the claims 1-9, arranged on the terminal body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022485075.7U CN213661938U (en) | 2020-10-30 | 2020-10-30 | Loudspeaker and electronic terminal |
| PCT/CN2020/128926 WO2022088278A1 (en) | 2020-10-30 | 2020-11-16 | Speaker and electronic terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022485075.7U CN213661938U (en) | 2020-10-30 | 2020-10-30 | Loudspeaker and electronic terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213661938U true CN213661938U (en) | 2021-07-09 |
Family
ID=76704920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022485075.7U Expired - Fee Related CN213661938U (en) | 2020-10-30 | 2020-10-30 | Loudspeaker and electronic terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213661938U (en) |
| WO (1) | WO2022088278A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218998263U (en) * | 2022-06-30 | 2023-05-09 | 瑞声科技(南宁)有限公司 | Loudspeaker box |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070031524A (en) * | 2005-09-15 | 2007-03-20 | 주식회사 비에스이 | Electret Condenser Microphone For Surface Mounting And Main Board Including The Same |
| CN206542569U (en) * | 2017-03-06 | 2017-10-03 | 瑞声光电科技(常州)有限公司 | A kind of loudspeaker |
| CN209314048U (en) * | 2019-01-08 | 2019-08-27 | 深圳市信维声学科技有限公司 | A kind of connection structure of speaker centring support sheet |
| CN209766516U (en) * | 2019-05-16 | 2019-12-10 | 昆山宝创新能源科技有限公司 | Battery module casing |
-
2020
- 2020-10-30 CN CN202022485075.7U patent/CN213661938U/en not_active Expired - Fee Related
- 2020-11-16 WO PCT/CN2020/128926 patent/WO2022088278A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022088278A1 (en) | 2022-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10602277B2 (en) | Acoustic device | |
| JP4997173B2 (en) | Electroacoustic transducer | |
| US11950071B2 (en) | Acoustic device | |
| US20200045471A1 (en) | Speaker | |
| CN210016629U (en) | Electroacoustic device | |
| CN108810767A (en) | The production method of loud speaker and loud speaker | |
| JP2012034338A (en) | Speaker | |
| CN213661938U (en) | Loudspeaker and electronic terminal | |
| JP3844074B2 (en) | Diaphragm for flat coil speaker and flat coil speaker using the same | |
| US20200314548A1 (en) | Speaker | |
| US20070286447A1 (en) | Speaker device | |
| CN109275073A (en) | The assembly method and loudspeaker of loudspeaker | |
| JP2005269335A (en) | Loudspeaker apparatus | |
| CN218473385U (en) | Coaxial loudspeaker | |
| CN213661940U (en) | Loudspeaker and electronic terminal | |
| CN213661939U (en) | Loudspeaker and electronic terminal | |
| WO2024044922A1 (en) | Coaxial loudspeaker | |
| CN214101770U (en) | Sound production device | |
| CN211531307U (en) | Loudspeaker | |
| CN209201323U (en) | Microphone device | |
| CA3147331C (en) | Speaker unit and speaker | |
| CN215734824U (en) | Hide coaxial loudspeaker of solder joint | |
| CN216491032U (en) | Loudspeaker | |
| CN219145596U (en) | Sounding device | |
| CN113727249B (en) | Sound production device and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210709 Termination date: 20211030 |