CN203747999U - Micro sounder - Google Patents
Micro sounder Download PDFInfo
- Publication number
- CN203747999U CN203747999U CN201420019116.5U CN201420019116U CN203747999U CN 203747999 U CN203747999 U CN 203747999U CN 201420019116 U CN201420019116 U CN 201420019116U CN 203747999 U CN203747999 U CN 203747999U
- Authority
- CN
- China
- Prior art keywords
- magnetic circuit
- circuit system
- side wall
- upper side
- basin frame
- 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
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a micro sounder. The micro sounder comprises a cone rack, a magnetic circuit system connected with the cone rack and a vibration system arranged above the magnetic circuit system, wherein the cone rack, the magnetic circuit system and the vibration system commonly circle to form a back chamber, the magnetic circuit system comprises a center portion and an edge portion, the center portion and the edge portion are arranged with intervals, the edge portion has an upper surface facing the vibration system, the cone rack comprises an upper side wall connected with the vibration system and a lower side wall which is connected with the magnetic circuit system and the upper side wall, the upper side wall is provided with at least a release hole which penetrates through the upper side wall and is communicated with the back chamber, and the release hole is arranged above the upper surface. The micro sounder improves design of the release hole, does not influence the dimension of the magnetic circuit system, improves an adjustable scope of the release hole and facilitates performance debugging.
Description
[technical field]
The utility model relates to a kind of acoustical generator, relates in particular to a kind of minitype acoustic generator that is applied to mobile communication equipment.
[background technology]
In recent years along with the fast development of mobile communication technology, consumer uses the mobile communication equipment with phonetic function more and more, for example portable phone, handheld device, laptop computer, laptop computer, multimedia player and can be by other equipment public or that dedicated communications network communicates.And acoustical generator is as the playing device of voice, its design quality directly affects the performance of mobile communication equipment.
The minitype acoustic generator of correlation technique, comprise magnetic circuit system, vibrational system and accommodate magnetic circuit system and the basin frame of vibrational system, described basin frame is offered leak holes in bottom conventionally, yet owing to staggering with magnetic circuit system in the position of leak holes, such design can make magnetic circuit system size-constrained, is unfavorable for improving the acoustical behavior of minitype acoustic generator.
Therefore, be necessary to propose a kind of new minitype acoustic generator and solve the problems referred to above.
[utility model content]
The technical problem that the utility model need solve is to provide a kind of performance that is conducive to debug minitype acoustic generator, and does not affect the minitype acoustic generator of magnetic circuit system size.
The utility model is to realize by such technical scheme:
A kind of minitype acoustic generator, it comprises basin frame, the vibrational system that connects the magnetic circuit system of described basin frame and be positioned at described magnetic circuit system top, described basin frame, magnetic circuit system and vibrational system surround back cavity jointly, described magnetic circuit system comprise central part and with the spaced edge part of described central part, described edge part has the upper surface towards described vibrational system, described basin frame comprises the lower wall that connects the upper side wall of described vibrational system and connect described magnetic circuit system and be connected with described upper side wall, described upper side wall offers at least one leak holes that runs through described upper side wall and communicate with described back cavity, described leak holes is positioned at the top of described upper surface.
As a kind of improvement of the present utility model, described magnetic circuit system also comprises the pole piece being fixed on institute's edge part, described pole piece comprises main part and the some fixed parts that protrude out to described basin frame from described main part, described fixed part and described main part surround breach, and described breach communicates with described leak holes.
As a kind of improvement of the present utility model, described basin sets up the protuberance that connects described upper side wall and protrude out to described back cavity, and described protuberance is held in described fixed part.
As a kind of improvement of the present utility model, described basin frame comprises towards the inner surface of described back cavity and the outer surface relative with described inner surface, described protuberance comprises the top that tilts to extend towards the direction away from described vibrational system from described inner surface and connects described top and support the bottom of described fixed part, described bottom and described inner surface form stage portion, and described fixed part is contained in described stage portion.
As a kind of improvement of the present utility model, described lower wall is provided with the groove to described outer surface depression from described inner surface, and described groove is positioned at the below of described stage portion and described leak holes, and described edge part is contained in described groove.
As a kind of improvement of the present utility model, described protuberance also comprises the connecting portion that connects adjacent bottom, described connecting portion is contained in described breach and is held in described main part, and through hole is formed at described connecting portion and described bottom, and described through hole communicates with described leak holes.
The utlity model has following advantage: owing to having improved the design of leak holes, leak holes be arranged on the sidewall of basin frame and be positioned at magnetic circuit system top, leak holes is communicated with back cavity, can be in the situation that the size of magnetic circuit system in not affecting minitype acoustic generator, increase the adjustable range of leak holes, the performance that is conducive to debug minitype acoustic generator.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional exploded view of the utility model minitype acoustic generator embodiment 1;
Fig. 2 is the three-dimensional combination figure of the utility model minitype acoustic generator embodiment 1;
Fig. 3 is the three-dimensional structure diagram of the basin frame of the utility model minitype acoustic generator embodiment 1;
Fig. 4 is that Fig. 2 is along the cutaway view of A-A line;
Fig. 5 is the three-dimensional exploded view of the utility model minitype acoustic generator embodiment 2;
Fig. 6 is the three-dimensional combination figure of the utility model minitype acoustic generator embodiment 2;
Fig. 7 is the three-dimensional structure diagram of the basin frame of the utility model minitype acoustic generator embodiment 2;
Fig. 8 is that Fig. 6 is along the cutaway view of B-B line.
[embodiment]
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
(embodiment 1)
As Figure 1-4, the utility model minitype acoustic generator 1 comprises basin frame 10, connects the upper cover 14 that the magnetic circuit system 11 of described receipts 10, the vibrational system 12 that is positioned at described magnetic circuit system 11 tops, the conducting terminal 13 that is fixed on described basin frame 10 and lid are located at described vibrational system 12 tops.Described basin frame 10, magnetic circuit system 11 surround back cavity 100 jointly with vibrational system 12.
The pole piece 113 that described magnetic circuit system 11 comprises central part 111, arranges and form the edge part 112 of magnetic gap 110 and be positioned at described edge part 112 tops with described central part 111 intervals.In described central part 111 and described edge part 112, at least one is permanent magnet.Described edge part 112 is provided with the upper surface 1121 towards described vibrational system 12.In the present embodiment, described edge part 112, pole piece 113 and described basin frame 10 injection mo(u)ldings, be convenient to produce.
Described vibrational system 12 comprises the vibrating diaphragm 120 being fixed on described basin frame 10, the flexible circuit board 122 that is positioned at described vibrating diaphragm 120 belows and connects the voice coil loudspeaker voice coil 121 of described vibrating diaphragm 120 and connect respectively described vibrating diaphragm 120 and upper cover 14.Described voice coil loudspeaker voice coil 121 is contained in described magnetic gap 110.Described vibrating diaphragm 120 comprises annular ring portion 1201 and the ball top 1202 that is positioned at described ring portion 1201 middle parts, and described ring portion 1201 is positioned at described flexible circuit board 122 belows, and described ball top 1202 is fixed on described flexible circuit board 122 tops.
Described basin frame 10 comprises the lower wall 17 that connects the upper side wall 16 of described vibrational system 12 and connect described magnetic circuit system 11 and be connected with described upper side wall 16.Described upper side wall 16 offers some leak holes 160 that run through described upper side wall 16 and communicate with described back cavity 100, and described leak holes 160 is positioned at the top of described upper surface 1121.Described upper side wall 16 is provided with the bottom surface 162 being connected with described lower wall 17, and described upper surface 1121 connects described bottom surface 162.In the present embodiment, described leak holes 160 connects described bottom surface 162.Because leak holes 160 is opened on upper side wall 16, and be positioned at described magnetic circuit system 11 tops, can not affect the size of magnetic circuit system 11.
Described pole piece 113 comprises main part 1131 and the some fixed parts 1132 that protrude out to described basin frame 10 from described main part 1131, and described fixed part 1132 surrounds breach 1130 with described main part 1131, and described breach 1130 communicates with described leak holes 160.During minitype acoustic generator 1 work, air-flow flow to described leak holes 160 by described breach 1130, then from leak holes 160 to outside outflow of described basin frame 10, is conducive to balance acoustic pressure.
Described basin frame 10 is provided with the protuberance 161 that connects described upper side wall 16 and protrude out to described back cavity 100, and described protuberance 161 is held in described fixed part 1132.
Described basin frame 10 comprises towards the inner surface 101 of described back cavity 100 and the outer surface 102 relative with described inner surface 101, and described protuberance 161 comprises the top 1611 that tilts to extend towards the direction away from described vibrational system 12 from described inner surface 101 and connects described top 1611 and support the bottom 1612 of described fixed part 1132.Described bottom 1612 forms stage portion 1613 with described inner surface 101, and described fixed part 1132 is contained in described stage portion 1613, is conducive to the firm combination of pole piece 113 and basin frame 10.
Described lower wall 17 comprises the groove 170 to described outer surface 102 depressions from described inner surface 101, and described groove 170 is positioned at described stage portion 1613 and described leak holes 160 belows, and described edge part 112 is contained in described groove 170, can expand magnetic circuit as far as possible.
Owing to leak holes 160 being arranged on the upper side wall 16 of basin frame 10, can not affect the size of magnetic circuit system 11 in minitype acoustic generator 1, and breach 1130 is set on pole piece 113, coordinate leak holes 160, increase the adjustable range of leak holes 160, the performance that is conducive to debug minitype acoustic generator 1.
(embodiment 2)
As shown in Fig. 5-8, the utility model minitype acoustic generator 2 comprises basin frame 20, connects the magnetic circuit system 21 of described basin frame 20, is positioned at the upper cover 24 that the vibrational system 22 of described magnetic circuit system 21 tops, the conducting terminal 23 that is fixed on described basin frame 20 and lid are located at described vibrational system 22 tops.Described basin frame 20, magnetic circuit system 21 surround back cavity 200 jointly with vibrational system 22.
The pole piece 213 that described magnetic circuit system 21 comprises central part 211, arranges and form the edge part 212 of magnetic gap 210 and be positioned at described edge part 212 tops with described central part 211 intervals.In described central part 211 and described edge part 212, at least one is permanent magnet.Described edge part 212 is provided with the upper surface 2121 towards described vibrational system 22.In the present embodiment, described edge part 212, pole piece 213 and described basin frame 20 injection mo(u)ldings, be convenient to produce.
Described vibrational system 22 comprises the vibrating diaphragm 220 being fixed on described basin frame 20, the flexible circuit board 222 that is positioned at described vibrating diaphragm 220 belows and connects the voice coil loudspeaker voice coil 221 of described vibrating diaphragm 220 and connect respectively described vibrating diaphragm 220 and upper cover 24.Described voice coil loudspeaker voice coil 221 is contained in described magnetic gap 210.Described vibrating diaphragm 220 comprises annular ring portion 2201 and the ball top 2202 that is positioned at described ring portion 2201 middle parts, and described ring portion 2201 is positioned at described flexible circuit board 222 belows, and described ball top 2202 is fixed on described flexible circuit board 222 tops.
Described basin frame 20 comprises the lower wall 27 that connects the upper side wall 26 of described vibrational system 22 and connect described magnetic circuit system 21 and be connected with described upper side wall 26.Described upper side wall 26 offers some leak holes 260 that run through described upper side wall 26 and communicate with described back cavity 200, and described leak holes 260 is positioned at the top of described upper surface 2121.Described upper side wall 26 is provided with the bottom surface 262 being connected with described lower wall 27, and described upper surface 2121 connects described bottom surface 262.In the present embodiment, described leak holes 260 does not connect described bottom surface 262.Because leak holes 260 is opened on upper side wall 26, and be positioned at described magnetic circuit system 211 tops, can not affect the size of magnetic circuit system 21.
Described pole piece 213 comprises main part 2131 and the some fixed parts 2132 that protrude out to described basin frame 20 from described main part 2131, and described fixed part 2132 surrounds breach 2130 with described main part 2131, and described breach 2130 communicates with described leak holes 260.
Described basin frame 20 is provided with the protuberance 261 that connects described upper side wall 26 and protrude out to described back cavity 200, and described protuberance 261 is held in described fixed part 2132.
Described basin frame 20 comprises towards the inner surface 201 of described back cavity 200 and the outer surface 202 relative with described inner surface 201, and described protuberance 261 comprises the top 2611 that tilts to extend towards the direction away from described vibrational system 22 from described inner surface 201 and connects described top 2611 and support the bottom 2612 of described fixed part 2132.
Described protuberance 261 also comprises the connecting portion 2614 that connects adjacent bottom 2612, and described connecting portion 2614 is contained in described breach 2130 and is held in described main part 2131.Described connecting portion 2614 forms through hole 2610 with described bottom 2612, and described through hole 2610 communicates with described leak holes 260.During minitype acoustic generator 2 work, air-flow flow to described leak holes 260 by described through hole 2610, again from leak holes 260 to outside outflow of described basin frame 20, described such design, be conducive to balance acoustic pressure, when guaranteeing that leak holes 260 is difficult for being blocked, can also reduce the rigid contact surfaces of pole piece 213 and mould in production process, reduce production difficulty.
Described lower wall 27 comprises the groove 270 to described outer surface 202 depressions from described inner surface 201, and described groove 270 is positioned at described stage portion 2613 belows, and described edge part 212 is contained in described groove 270, can expand magnetic circuit as far as possible.
Owing to leak holes 260 being arranged on the sidewall 26 of basin frame 20, can not affect the size of magnetic circuit system 21 in minitype acoustic generator 2, and breach 2130 is set on pole piece 213, coordinate leak holes 260, increase the adjustable range of leak holes 260, the performance that is conducive to debug minitype acoustic generator 2.
Above-described is only execution mode of the present utility model; at this, it should be pointed out that for the person of ordinary skill of the art, do not departing under the prerequisite of the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (6)
1. a minitype acoustic generator, it comprises basin frame, the vibrational system that connects the magnetic circuit system of described basin frame and be positioned at described magnetic circuit system top, described basin frame, magnetic circuit system and vibrational system surround back cavity jointly, described magnetic circuit system comprise central part and with the spaced edge part of described central part, described edge part has the upper surface towards described vibrational system, it is characterized in that: described basin frame comprises the lower wall that connects the upper side wall of described vibrational system and connect described magnetic circuit system and be connected with described upper side wall, described upper side wall offers at least one leak holes that runs through described upper side wall and communicate with described back cavity, described leak holes is positioned at the top of described upper surface.
2. minitype acoustic generator according to claim 1, it is characterized in that: described magnetic circuit system also comprises the pole piece being fixed on institute's edge part, described pole piece comprises main part and the some fixed parts that protrude out to described basin frame from described main part, described fixed part and described main part surround breach, and described breach communicates with described leak holes.
3. minitype acoustic generator according to claim 2, is characterized in that: described basin sets up the protuberance that connects described upper side wall and protrude out to described back cavity, and described protuberance is held in described fixed part.
4. minitype acoustic generator according to claim 3, it is characterized in that: described basin frame comprises towards the inner surface of described back cavity and the outer surface relative with described inner surface, described protuberance comprises the top that tilts to extend towards the direction away from described vibrational system from described inner surface and connects described top and support the bottom of described fixed part, described bottom and described inner surface form stage portion, and described fixed part is contained in described stage portion.
5. minitype acoustic generator according to claim 4, it is characterized in that: described lower wall is provided with the groove to described outer surface depression from described inner surface, described groove is positioned at the below of described stage portion and described leak holes, and described edge part is contained in described groove.
6. minitype acoustic generator according to claim 5, it is characterized in that: described protuberance also comprises the connecting portion that connects adjacent bottom, described connecting portion is contained in described breach and is held in described main part, and through hole is formed at described connecting portion and described bottom, and described through hole communicates with described leak holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019116.5U CN203747999U (en) | 2014-01-13 | 2014-01-13 | Micro sounder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019116.5U CN203747999U (en) | 2014-01-13 | 2014-01-13 | Micro sounder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747999U true CN203747999U (en) | 2014-07-30 |
Family
ID=51347746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420019116.5U Expired - Fee Related CN203747999U (en) | 2014-01-13 | 2014-01-13 | Micro sounder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747999U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107360522A (en) * | 2017-08-07 | 2017-11-17 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic equipment |
| CN107396262A (en) * | 2017-08-07 | 2017-11-24 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic equipment |
| WO2019137191A1 (en) * | 2018-01-10 | 2019-07-18 | 歌尔股份有限公司 | Sounder |
| WO2019205720A1 (en) * | 2018-04-24 | 2019-10-31 | 歌尔股份有限公司 | Sound-emitting device |
-
2014
- 2014-01-13 CN CN201420019116.5U patent/CN203747999U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107360522A (en) * | 2017-08-07 | 2017-11-17 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic equipment |
| CN107396262A (en) * | 2017-08-07 | 2017-11-24 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic equipment |
| WO2019137191A1 (en) * | 2018-01-10 | 2019-07-18 | 歌尔股份有限公司 | Sounder |
| US11395071B2 (en) | 2018-01-10 | 2022-07-19 | Goertek Inc. | Sound generator |
| WO2019205720A1 (en) * | 2018-04-24 | 2019-10-31 | 歌尔股份有限公司 | Sound-emitting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201967118U (en) | Novel mini-type loudspeaker | |
| CN202818588U (en) | Loudspeaker | |
| CN203747999U (en) | Micro sounder | |
| CN203747990U (en) | Loudspeaker | |
| JP2017212713A (en) | speaker | |
| CN201467442U (en) | Capacitor microphone | |
| CN201563212U (en) | Sound cavity and mobile terminal thereof | |
| CN205356670U (en) | Mini loudspeaker | |
| CN204425642U (en) | Loud speaker | |
| CN204425613U (en) | Loudspeaker enclosure | |
| CN201426176Y (en) | Silicon capacitance microphone | |
| CN206433166U (en) | Minitype acoustic generator | |
| CN202050537U (en) | Sounder | |
| CN202425029U (en) | Sound production device | |
| CN203775396U (en) | Micro sound generator | |
| CN204305346U (en) | A kind of magnetic circuit device and moving-coil type acoustic generator part thereof | |
| CN208609175U (en) | A kind of outer magnetic speaker of U glasss of middle part tuning | |
| CN204425610U (en) | Loudspeaker enclosure | |
| CN201893917U (en) | Minitype acoustical generator | |
| CN203352785U (en) | Sounding device | |
| CN203775398U (en) | Mini-type sounder | |
| CN201967122U (en) | Magnetic circuit system and speaker applying same | |
| CN202009488U (en) | Acoustic generator | |
| CN205356669U (en) | Single loudspeaker | |
| CN202713593U (en) | Sounder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140730 Termination date: 20220113 |