CN203279164U - Magnetic circuit structure of loudspeaker - Google Patents
Magnetic circuit structure of loudspeaker Download PDFInfo
- Publication number
- CN203279164U CN203279164U CN 201320320667 CN201320320667U CN203279164U CN 203279164 U CN203279164 U CN 203279164U CN 201320320667 CN201320320667 CN 201320320667 CN 201320320667 U CN201320320667 U CN 201320320667U CN 203279164 U CN203279164 U CN 203279164U
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- China
- Prior art keywords
- magnet
- train wheel
- wheel bridge
- locating ring
- positioning ring
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- Expired - Fee Related
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to a magnetic circuit structure of a loudspeaker, comprising a T-shaped iron piece (1), a magnet (2), an upper splint (3), a magnet positioning ring (5) integrated on the lower splint of the T-shaped iron piece (1), an upper splint positioning ring (6) made of non-conductive magnet materials and a groove positioned on the bottom of the upper splint (3) for containing the upper splint positioning ring (6). The outer circumferential surface of the magnet positioning ring (5) is complementary to the inner circumferential surface of the annular magnet (2). The upper splint positioning ring (6) is embedded within the groove on the bottom of the upper splint (3). The outer circumferential surface of the upper splint positioning ring (6) is complementary to the circumferential wall of the groove. The outer circumferential surface of the upper splint positioning ring (6) is complementary to the outer circumferential surface of the magnet-conductive column of the T-shaped iron piece (1). By adding the magnet positioning ring (5) and the upper splint positioning ring (6), the gluing procedure can be performed synchronously in the assembling process, which simplifies the technological process, guarantees the center holes of the T-shaped iron piece (1), the magnet (2) and the upper splint (3) to be identical and ensures consistency of the frequency response of the loudspeaker.
Description
Technical field
The utility model relates to a kind of magnetic structure, especially a kind of magnetic circuit structure for loudspeaker.
Background technology
Magnetic circuit structure for loudspeaker generally comprises T shape iron, annular magnet and the train wheel bridge that connects successively.Wherein, T shape iron is by lower plate with conducting magnetic column is integrated forms.Magnet and train wheel bridge are placed on the conducting magnetic column of T shape iron, make and form the toroid gap between the central through hole of the conducting magnetic column of T shape iron and train wheel bridge, and voice coil loudspeaker voice coil is arranged in this toroid gap, thereby consist of loud speaker magnetism loop.The centre bore of guaranteeing T shape iron, annular magnet and train wheel bridge three is concentric, just can make the magnetic circuit gap symmetrical, and the magnetic flux distributions in the loud speaker magnetic gap is even, thereby makes the loud speaker frequency response be consistent.The magnetic circuit of loudspeaker of existing structure is concentric for the centre bore that guarantees T shape iron, magnet and train wheel bridge three, need when bonding T shape iron and magnet by the magnetic predetermined bits, until T shape iron and magnet bonding firmly after, relend and help fork clip location to beat gluing connecing to magnet and train wheel bridge, whole technological process is loaded down with trivial details, spended time is long, and cost of labor is large, and efficient is low.In addition, magnetic rule and fork clip are unavoidable in reusing process for a long time exists wearing and tearing, uses the magnetic of wearing and tearing to advise and the fork clip location can cause T shape iron, magnet and train wheel bridge three's centre bore decentraction, makes the magnetic circuit gap asymmetric, affects loud speaker frequency response consistency.
The utility model content
The utility model technical issues that need to address are: a kind of magnetic circuit structure for loudspeaker is provided, and it can simplify assemble flow, guarantees that T shape iron, magnet and train wheel bridge three's centre bore is concentric, improves loud speaker frequency response consistency.
for solving the problems of the technologies described above, the utility model adopts a kind of like this magnetic circuit structure for loudspeaker, it comprises lower plate and the integrated T shape of conducting magnetic column iron, annular magnet and the train wheel bridge with central through hole with central through hole, annular magnet and train wheel bridge are placed on the conducting magnetic column of T shape iron successively, formation toroid gap between the middle through-hole of conducting magnetic column and train wheel bridge, the magnet locating ring that it also comprises on the conducting magnetic column that is placed on T shape iron and fixes with lower plate, the train wheel bridge locating ring that non-magnet_conductible material consists of and be located at the groove that the train wheel bridge bottom is used for accommodating train wheel bridge locating ring, the inner peripheral surface of described magnet locating ring outer circumference surface and annular magnet matches, described train wheel bridge locating ring is embedded in the groove of train wheel bridge bottom, and the circle wall of outer circumference surface and groove matches, and the outer circumference surface of inner peripheral surface and T iron conducting magnetic column matches, the axis of the axis of described T shape iron, the axis of magnet locating ring, annular magnet, the axis of train wheel bridge locating ring, the axis of train wheel bridge groove and the dead in line of train wheel bridge.
After adopting above structure, the utility model compared with prior art, have the following advantages: owing to having increased magnet locating ring and train wheel bridge locating ring, in assembling process, can make T shape iron, annular magnet relative with train wheel bridge three's position fixing, this makes easy assurance T shape iron, annular magnet and train wheel bridge three's centre bore concentric, and, T shape iron, annular magnet and train wheel bridge synchronously can be beaten gluing connecing, simplified technological process, greatly shorten built-up time, reduced production cost.In addition, can also overcome the magnetic circuit gap asymmetry problem that causes because of the wearing and tearing of track and fork clip positioning component, guarantee that the loud speaker frequency response is consistent, improve the result of use of loud speaker.
As improvement, described magnet locating ring is shaped on the lower plate of T iron, makes technique simpler.
Description of drawings
Accompanying drawing 1 is the structural representation of magnetic circuit structure for loudspeaker of the present utility model.
Description of reference numerals: 1, T shape iron, 2, annular magnet, 3, train wheel bridge, 4, the toroid gap, 5, the magnet locating ring, 6, the train wheel bridge locating ring.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but be not limited to this.
As depicted in figs. 1 and 2, magnetic circuit structure for loudspeaker of the present utility model, it comprises lower plate and the integrated T shape of conducting magnetic column iron 1, have the annular magnet 2 of central through hole and have the train wheel bridge 3 of central through hole, annular magnet 2 and train wheel bridge 3 are placed on the conducting magnetic column of T shape iron 1 successively, formation toroid gap 4 between the central through hole of conducting magnetic column and train wheel bridge 3.It also comprises on the conducting magnetic column that is placed on T shape iron 1 and the magnet locating ring 5 that fixes with lower plate, train wheel bridge locating ring 6 that non-magnet_conductible material consists of and be located at the groove that train wheel bridge 3 bottoms are used for accommodating train wheel bridge locating ring 6.The inner peripheral surface of described magnet locating ring 5 outer circumference surfaces and annular magnet 2 matches, what is called matches, and the inner peripheral surface that refers to magnet locating ring 5 outer circumference surfaces and annular magnet 2 is big or small, size equates, fit mutually, make in assembling process, T shape iron 1 is relative with the position of magnet 2 fixing, guarantees that both centre bores of T shape iron 1 and annular magnet 2 are concentric.in addition, described train wheel bridge locating ring 6 is embedded in the groove of train wheel bridge 3 bottoms, the circle wall of outer circumference surface and groove matches, the outer circumference surface of inner peripheral surface and T shape iron 1 conducting magnetic column matches, make in assembling process, T shape iron 1 is relative with the position of train wheel bridge 3 fixing, guarantee that both centre bores of T shape iron 1 and train wheel bridge 3 are concentric, the match size of the inner peripheral surface and the outer circumference surface that refer to two annulus of what is called, size equates, fit mutually, and the very thin thickness of train wheel bridge locating ring 6, increase train wheel bridge locating ring 6 and can not affect the proper motion of rounding voice ring in this toroid gap 4.In addition, the axis of the axis of T shape iron 1, the axis of magnet locating ring 5, annular magnet 2, the axis of train wheel bridge locating ring 6, the axis of train wheel bridge 3 grooves and the axis of train wheel bridge 3 overlap mutually, form symmetrical toroid gap 4.By increasing magnet locating ring 5 and train wheel bridge locating ring 6, make T shape iron 1, annular magnet 2 and train wheel bridge 3 threes' position relatively stable, the centre bore that easily guarantees T shape iron 1, magnet 2 and train wheel bridge 3 threes is concentric, effectively improves product percent of pass, guarantees loud speaker frequency response consistency.And, after increasing magnet locating ring platform 5 and train wheel bridge locating ring 6, need not to kill rear taking-up positioning component until glue and carry out again next assembling flow path, and can synchronously beat gluing connecing, simplification of flowsheet has greatly shortened built-up time, has reduced cost of labor.
As the improvement project of the present embodiment, described magnet locating ring 5 is shaped on the lower plate of T shape iron 1.
Above-described embodiment of the present utility model is can not be used for restriction the utility model to explanation of the present utility model, and the implication suitable with claims of the present utility model and any change in scope all should be thought to comprise in claims scope.
Claims (2)
1. magnetic circuit structure for loudspeaker, it comprises lower plate and the integrated T shape of conducting magnetic column iron (1), have the annular magnet (2) of central through hole and have the train wheel bridge (3) of central through hole, annular magnet (2) and train wheel bridge (3) are placed on the conducting magnetic column of T shape iron (1) successively, form toroid gap (4) between the central through hole of conducting magnetic column and train wheel bridge (3), it is characterized in that, the magnet locating ring (5) that it also comprises on the conducting magnetic column that is placed on T shape iron (1) and fixes with lower plate, the train wheel bridge locating ring (6) that non-magnet_conductible material consists of and be located at train wheel bridge (3) bottom for the groove of accommodating train wheel bridge locating ring (6), the inner peripheral surface of described magnet locating ring (5) outer circumference surface and annular magnet (2) matches, described train wheel bridge locating ring (6) is embedded in the groove of train wheel bridge (3) bottom, and the circle wall of outer circumference surface and groove matches, and the outer circumference surface of inner peripheral surface and T shape iron (1) conducting magnetic column matches, the axis of the axis of the axis of the axis of the axis of described T shape iron (1), magnet locating ring (5), annular magnet (2), train wheel bridge locating ring (6), train wheel bridge (3) groove and the axis of train wheel bridge (3) overlap mutually.
2. magnetic circuit structure for loudspeaker as claimed in claim 1, is characterized in that, described magnet locating ring (4) is shaped on the lower plate of T iron (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320320667 CN203279164U (en) | 2013-06-04 | 2013-06-04 | Magnetic circuit structure of loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320320667 CN203279164U (en) | 2013-06-04 | 2013-06-04 | Magnetic circuit structure of loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203279164U true CN203279164U (en) | 2013-11-06 |
Family
ID=49509480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320320667 Expired - Fee Related CN203279164U (en) | 2013-06-04 | 2013-06-04 | Magnetic circuit structure of loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203279164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018161659A1 (en) * | 2017-03-06 | 2018-09-13 | 深圳市冠旭电子股份有限公司 | Radial magnetic circuit assembly device and assembling method |
-
2013
- 2013-06-04 CN CN 201320320667 patent/CN203279164U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018161659A1 (en) * | 2017-03-06 | 2018-09-13 | 深圳市冠旭电子股份有限公司 | Radial magnetic circuit assembly device and assembling method |
| US11387027B2 (en) | 2017-03-06 | 2022-07-12 | Shenzhen Grandsun Electronic Co., Ltd. | Radial magnetic circuit assembly device and radial magnetic circuit assembly method |
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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: 20131106 Termination date: 20190604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |