CN201114748Y - Miniature speaker - Google Patents
Miniature speaker Download PDFInfo
- Publication number
- CN201114748Y CN201114748Y CNU2007201226710U CN200720122671U CN201114748Y CN 201114748 Y CN201114748 Y CN 201114748Y CN U2007201226710 U CNU2007201226710 U CN U2007201226710U CN 200720122671 U CN200720122671 U CN 200720122671U CN 201114748 Y CN201114748 Y CN 201114748Y
- Authority
- CN
- China
- Prior art keywords
- magnetic circuit
- microspeaker
- voice coil
- layer
- circuit assembly
- 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 - Lifetime
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Abstract
The utility model discloses a micro loudspeaker. The micro loudspeaker of the utility model regulates the performance of the loudspeaker through using a magnetic circuit component, a runway-shaped voice coil, a rectangular vibrating diaphragm and air holes, wherein the air holes are arranged on the bottom of a magnetic frame and the two sides of a stent in the magnetic circuit component. The micro loudspeaker has the advantages of small influence on the volume of a back cavity of the loudspeaker, obtaining good acoustic performance, better low frequency response, lower distortion and higher sensitivity.
Description
[technical field]
The utility model relates to a kind of miniature electro-acoustic device, relates in particular to a kind of Microspeaker spare, as is used for the Microspeaker spare of miniature portable equipments such as mobile phone.
[background technology]
Along with the continuous variation of the market demand, make portable equipment product fast developments such as mobile phone, also more and more higher to the requirement of the components and parts that use thereon, Microspeaker spare is one of wherein important components and parts, and its requirement is also improved constantly.
Microspeaker spare in the portable equipment as shown in Figure 1 at present, 1 '-protecgulum, 2 '-vibrating diaphragm, 3 '-voice coil loudspeaker voice coil, 4 '-pole piece, 5 '-magnet steel, 6 '-support, 7 '-magnet frame, ellipse or the circular membranes of adopting more, and general has visible air-vent 8 ' bottom magnet frame 7 ', and air-vent 8 ' is easy to be plugged such design after installation, reduce the back cavity volume at needs owing to the portable equipment complete machine, or after installation, when air-vent is plugged, can not guarantee that Microspeaker keeps LF-response and low distortion, in order to address this problem, just require loud speaker itself that enough LF-response will be arranged, low distortion is subjected to the influence of cavity body structure as far as possible little.In order to reach these requirements, just the structure to loud speaker has proposed the innovation requirement.
[utility model content]
The technical problems to be solved in the utility model provides a kind of its performance that makes and is subjected to the influence of cavity body structure little, the Microspeaker structure that acoustical behavior is good.The technical scheme that the utility model adopted is: mainly the part-structure and the diaphragm structure of the magnetic circuit assembly by improving Microspeaker are realized.
The basic comprising of this Microspeaker is: protecgulum, rectangle vibrating diaphragm, runway shape voice coil loudspeaker voice coil, magnetic circuit assembly.Wherein the magnetic circuit components comprises: magnet frame, magnet steel, pole piece and support.This rectangle vibrating diaphragm is made up of the linner ball top of a softer ring and a multilayer, and soft ring is by the film process hot forming of thin good springiness again, and the multilayer linner ball pushes up the material layer by light weight and good rigidly, glue layer one, and aluminium foil layer and glue layer two are formed.The material layer of light weight and good rigidly, aluminium foil layer and ring are glued together by glue layer one and glue layer two; Runway shape voice coil loudspeaker voice coil and rectangle vibrating diaphragm link together by the mode of gummed; Magnet frame in the magnetic circuit assembly is a runway shape, has a plurality of slotted eyes as air-vent in its bottom.The both sides of the support in the magnetic circuit assembly have a plurality of hidden air-vents; The mode of the gummed that magnet frame, magnet steel, pole piece and support pass through is joined together to form the magnetic circuit assembly; Protecgulum, rectangle vibrating diaphragm and runway shape voice coil loudspeaker voice coil gummed part, magnetic circuit assembled constitute Microspeaker together.
The utility model is with respect to prior art, used the hidden air-vent of rectangle vibrating diaphragm and magnetic circuit assembly medium-height trestle side, in the rectangle vibrating diaphragm, soft ring has the better range of linearity, thereby the better low-frequency distortion that can obtain, the multilayer linner ball top of good rigidly then can obtain better high frequency response, and the size shape on this multilayer linner ball top of fine adjustment can obtain required high frequency response; Sensitivity and LF-response that the air-vent of the hidden air-vent of magnetic circuit assembly medium-height trestle side and magnet frame bottom can be regulated product on the one hand, also can guarantee on the other hand when product is packed casing into, can not influence performance because casing blocks the magnet frame bottom, even if because the magnet frame bottom is plugged, the air-vent of support both sides still works.By above-mentioned improvement, make that the LF-response of Microspeaker itself is better, distortion is lower, and sensitivity is higher, is subjected to the influence of cavity body structure less.
[description of drawings]
Fig. 1 is the decomposing schematic representation of prior art Microspeaker
Fig. 2 is the decomposing schematic representation of the embodiment of the utility model Microspeaker.
Fig. 3 is the decomposing schematic representation of the vibrating diaphragm of the utility model Microspeaker.
Fig. 4 is the cutaway view of the hidden air-vent in side of the magnetic circuit assembly medium-height trestle of the utility model Microspeaker.
[embodiment]
Please refer to Fig. 2, the execution mode of the utility model Microspeaker shown in 3,4.The basic comprising of this Microspeaker is: protecgulum 1, rectangle vibrating diaphragm 2, runway shape voice coil loudspeaker voice coil 3, magnetic circuit assembly 4.Wherein magnetic circuit assembly 4 parts comprise: pole piece 41, magnet steel 42, support 43, magnet frame 44.Rectangle vibrating diaphragm 2 is made up of the linner ball top 21 of a softer ring 22 and a multilayer, soft ring 22 is by the film process hot forming of thin good springiness again, multilayer linner ball top is by material (as wooden skin) layer 21a, glue layer one 21b, aluminium foil layer 21c and the glue layer two 21d composition of light weight and good rigidly.The material of light weight and good rigidly (as wooden skin) layer 21a, aluminium foil layer 21c and ring 22 are glued together by glue layer one 21b and glue layer two 21d; Runway shape voice coil loudspeaker voice coil 3 links together with the mode of rectangle vibrating diaphragm 2 by gummed.Magnet frame 44 in the magnetic circuit assembly 4 is a runway shape, has a plurality of slotted eyes as air-vent in its bottom, and 44a is one of them air-vent.The both sides of the support 43 in the magnetic circuit assembly 4 can have a plurality of hidden air-vents, and its cutaway view can not opened according to performance requirement shown in the 43a among Fig. 4 yet; Pole piece 41, magnet steel 42, support 43, the mode of the gummed that magnet frame 44 passes through is joined together to form magnetic circuit assembly 4.Protecgulum 1, rectangle vibrating diaphragm 2 and runway shape voice coil loudspeaker voice coil 3 gummed parts, the magnetic circuit assembly 4 formation Microspeaker that is assembled together.
From Fig. 3, as can be seen, this Microspeaker but can obtain effect preferably for the improvement method of in the past loud speaker and uncomplicated, is very beneficial for industrial production in 4.
Claims (3)
1. Microspeaker, basic comprising is: protecgulum, rectangle vibrating diaphragm, voice coil loudspeaker voice coil, magnetic circuit assembly, the magnetic circuit components comprises: magnet frame, magnet steel, pole piece and support is characterized in that: the both sides of the support of magnetic circuit assembly have air-vent.
2. Microspeaker as claimed in claim 1, it is characterized in that: described rectangle vibrating diaphragm is made up of the linner ball top of a softer ring and a multilayer, multilayer linner ball top is by the material layer of light weight and good rigidly, cementing layer one, aluminium foil layer and cementing layer two are formed, and the material layer of light weight and good rigidly, aluminium foil layer and ring are glued together by cementing layer one and cementing layer two.
3. Microspeaker as claimed in claim 1 is characterized in that: the air-vent of the both sides of the support of described magnetic circuit assembly is the Z font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201226710U CN201114748Y (en) | 2007-09-03 | 2007-09-03 | Miniature speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201226710U CN201114748Y (en) | 2007-09-03 | 2007-09-03 | Miniature speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201114748Y true CN201114748Y (en) | 2008-09-10 |
Family
ID=39966498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201226710U Expired - Lifetime CN201114748Y (en) | 2007-09-03 | 2007-09-03 | Miniature speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201114748Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562766B (en) * | 2009-05-22 | 2011-01-19 | 瑞声声学科技(深圳)有限公司 | Acoustic generator |
| CN103037293A (en) * | 2012-11-30 | 2013-04-10 | 惠州超声音响有限公司 | Speaker with two magnetic circuits and one hanging piece |
-
2007
- 2007-09-03 CN CNU2007201226710U patent/CN201114748Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562766B (en) * | 2009-05-22 | 2011-01-19 | 瑞声声学科技(深圳)有限公司 | Acoustic generator |
| CN103037293A (en) * | 2012-11-30 | 2013-04-10 | 惠州超声音响有限公司 | Speaker with two magnetic circuits and one hanging piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AAC TECHNOLOGIES PTE. LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 AAC TECHNOLOGIES BUILDING, NO. 18, XINXI ROAD, NORTH AREA, HIGH-TECH. INDUSTRIAL PARK, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518057 6/F, AAC TECHNOLOGIES BUILDING, NO. 18, XINXI ROAD, NORTH AREA, HIGH-TECH. INDUSTRIAL PARK, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110519 Address after: Six, 518057 floor, Rui Xin Technology Building, 18 West West Road, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Co-patentee after: Swiss Sound Technology Pte Ltd Patentee after: AAC Acoustic Technologies (Shenzhen) Co., Ltd. Address before: 518000 Rui technology building, 18 West West Road, Nanshan District hi tech Industrial Park, Guangdong, Shenzhen, China Patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |