CN204145724U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN204145724U CN204145724U CN201420524859.8U CN201420524859U CN204145724U CN 204145724 U CN204145724 U CN 204145724U CN 201420524859 U CN201420524859 U CN 201420524859U CN 204145724 U CN204145724 U CN 204145724U
- Authority
- CN
- China
- Prior art keywords
- fastening bolt
- magnet
- washer
- endoporus
- loudspeaker
- 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
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to slim small-bore horn art, in particular to a kind of loudspeaker, comprise support, magnet and washer, described support, magnet and washer are respectively with the endoporus that aperture is identical, with internal thread on described endoporus, described internal thread coordinates with fastening bolt, described fastening bolt is successively through described support, magnet and washer, the endoporus peripheral hardware limited location step of described support, the ring of described fastening bolt is all with the defining flange coordinated with described limited step, with counterbore on described fastening bolt.According to the technical solution of the utility model, these loudspeaker are formed in one structure, save viscose glue operation and hand riveting's operation, save cost of labor, and magnetic resilience is cleaner, not easily shelter metal impurities and collodion silk foreign material, virtually improve first-pass yield and the packaging efficiency of product, reduce labor cost; Meanwhile, improve product magnetic and return concentricity, make flux more concentrated, motive force more balances unanimously, improving product qualification rate.
Description
Technical field
The utility model relates to slim small-bore horn art, particularly a kind of loudspeaker.
Background technology
Loudspeaker are loud speaker again, be a kind of very conventional electro-acoustic transducer device, divide moving-coil type (electrodynamic type), condenser type (electrostatic), piezoelectric type (crystal or pottery), electromagnetic type (compressed spring type), electric ion type and pneumatic type loudspeaker etc. by transducing mechanism and structure.
The most common most typical be that cone formula loudspeaker are also called moving-coil type loudspeaker it is made up of three parts:
1. vibrational system, comprises taper cone, voice coil loudspeaker voice coil and centring disk etc.;
2. magnetic circuit system, comprises adopted magnet, magnetic conductive board and field stem etc. forever;
3. auxiliary system, comprises support, terminal block, flanging and dust cap etc.When being in the voice coil loudspeaker voice coil in magnetic field and having tone currents to pass through, just produce the magnetic field with tone currents change, the magnetic field of this magnetic field and permanent magnet interacts, and voice coil loudspeaker voice coil is axially vibrated, because horn structure is simple, bass is plentiful, tonequality is soft, bandwidth, but efficiency is lower.
Existing loudspeaker, the washer that magnetic after-tacks glue water type is arranged on the left side of magnet, the inner bottom surface of horn bracket and the right side of magnet directly fastens with glue.It is complicated that this magnetic after-tacks glue water type support assembly technology, and cost is high, and the dust of glue in dry run in easy absorbed air, formed thread, cause fraction defective high; In addition, easily cause magnetic to return concentricity in adhesive process partially askew inaccurate, and due to gluing fastness not enough, cause voice coil loudspeaker voice coil easily to produce noise in magnetic gap motion process, fraction defective promotes.
Utility model content
The technical problem that the utility model solves is to provide that a kind of assembling is simple, firm, efficiency is high, and magnetic returns good concentricity, and cost is low, the loudspeaker that fraction defective is low.
For achieving the above object, a kind of loudspeaker are provided according to the utility model, comprise support, magnet and washer, described support, magnet and washer are respectively with the endoporus that aperture is identical, with internal thread on described endoporus, described internal thread coordinates with fastening bolt, described fastening bolt is successively through described support, magnet and washer, the endoporus peripheral hardware limited location step of described support, the ring of described fastening bolt is all with the defining flange coordinated with described limited step, with counterbore on described fastening bolt.
Further, the degree of depth of described counterbore accounts for 1/5th of described fastening bolt length.
Further, the length of described fastening bolt is identical with the summation of described magnet, washer, backing thickness.
The beneficial effects of the utility model are: according to the technical solution of the utility model, these loudspeaker are formed in one structure, save viscose glue operation and hand riveting's operation, save cost of labor, and magnetic resilience is cleaner, not easily shelter metal impurities and collodion silk foreign material, virtually improve first-pass yield and the packaging efficiency of product, reduce labor cost; Meanwhile, improve product magnetic and return concentricity, make flux more concentrated, motive force more balances unanimously, improving product qualification rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing and preferred embodiment, a kind of loudspeaker, comprise support 1, magnet 2 and washer 3, described support, magnet and washer are respectively with the endoporus that aperture is identical, with internal thread 4 on described endoporus, described internal thread coordinates with fastening bolt 5, described fastening bolt is successively through described support, magnet and washer, the endoporus peripheral hardware limited location step 6 of described support, the ring week of described fastening bolt is with the defining flange 7 coordinated with described limited step, when fastening bolt is by support, magnet, washer is tightened to together, defining flange or drop in limited step.With counterbore 8 on described fastening bolt, counterbore is used for preventing interior six spanners.The degree of depth of described counterbore accounts for 1/5th of described fastening bolt length, if counterbore is crossed deeply can cause fastening bolt intensity step-down, through the degree of depth of overtesting 1/5th, the intensity of fastening bolt is maximum.The length of described fastening bolt is identical with the summation of described magnet, washer, backing thickness, namely ensures that fastening bolt does not expose washer and support when fastening.
According to the technical solution of the utility model, these loudspeaker are connected by fastening bolt, and increase fibre flange and limited step, save viscose glue operation and hand riveting's operation, save cost of labor, and magnetic resilience is cleaner, not easily shelters metal impurities and collodion silk foreign material, virtually improve first-pass yield and the packaging efficiency of product, reduce labor cost; Meanwhile, improve product magnetic and return concentricity, make flux more concentrated, motive force more balances unanimously, improving product qualification rate.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. loudspeaker, comprise support, magnet and washer, described support, magnet and washer are respectively with the endoporus that aperture is identical, with internal thread on described endoporus, described internal thread coordinates with fastening bolt, and described fastening bolt passes described support, magnet and washer successively, the endoporus peripheral hardware limited location step of described support, the ring of described fastening bolt is all with the defining flange coordinated with described limited step, with counterbore on described fastening bolt.
2. loudspeaker according to claim 1, is characterized in that, the degree of depth of described counterbore accounts for 1/5th of described fastening bolt length.
3. loudspeaker according to claim 1 and 2, is characterized in that, the length of described fastening bolt is identical with the summation of described magnet, washer, backing thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524859.8U CN204145724U (en) | 2014-09-12 | 2014-09-12 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524859.8U CN204145724U (en) | 2014-09-12 | 2014-09-12 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204145724U true CN204145724U (en) | 2015-02-04 |
Family
ID=52422385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420524859.8U Expired - Fee Related CN204145724U (en) | 2014-09-12 | 2014-09-12 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204145724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933832A (en) * | 2016-06-14 | 2016-09-07 | 歌尔股份有限公司 | Single loudspeaker and production method of single loudspeaker |
-
2014
- 2014-09-12 CN CN201420524859.8U patent/CN204145724U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933832A (en) * | 2016-06-14 | 2016-09-07 | 歌尔股份有限公司 | Single loudspeaker and production method of single loudspeaker |
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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 |
Granted publication date: 20150204 Termination date: 20160912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |