CN203747980U - Magnetic circuit system and electroacoustic device employing magnetic circuit system - Google Patents
Magnetic circuit system and electroacoustic device employing magnetic circuit system Download PDFInfo
- Publication number
- CN203747980U CN203747980U CN201420017574.5U CN201420017574U CN203747980U CN 203747980 U CN203747980 U CN 203747980U CN 201420017574 U CN201420017574 U CN 201420017574U CN 203747980 U CN203747980 U CN 203747980U
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- magnet steel
- circuit system
- magnetic
- magnetic circuit
- electro
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Abstract
The utility model provides a magnetic circuit system and an electroacoustic device employing the magnetic circuit system. The magnetic circuit system comprises a magnetic conductive board, two main magnetic steels which are arranged with intervals, a secondary magnetic steel arranged between the two main magnetic steels, two edge magnetic steels arranged at two sides of the main magnetic steels and the secondary magnetic steel, a secondary pole core pasted on the secondary magnetic steel and an upper clamping board pasted on the edge magnetic steels, the main magnetic steels, the secondary magnetic steel and the edge magnetic steels are arranged on the magnetic conduction board, the main magnetic steels and the edge magnetic steels commonly surround the secondary magnetic steel, the upper clamping board is provided with an inner side edge close to the secondary pole core and an outer side edge opposite to the inner side edge, the upper clamping board is further provided with a groove sinking from the inner side edge to the outer side edge, and the secondary pole core is buckled and fixed in the groove. The electroacoustic device can effectively position the magnetic circuit system, and stability of the electroacoustic device is improved.
Description
[technical field]
The utility model relates to a kind of magnetic circuit system and applies the electro-acoustic element of described magnetic circuit system.
[background technology]
Along with scientific and technical development, the progress of society, electronic product obtains a large amount of popularizing, and then makes magnetic circuit system obtain a large amount of uses, and in order to obtain better enjoyment acoustically, people are more and more higher to the performance requirement of electro-acoustic element.Especially the magnetic circuit system of multipath magnetic circuit is as one of vitals in sound-producing device for magnetic circuit system, and its quality directly affects the performance of electro-acoustic element.
The multipath magnetic circuit magnetic circuit system of correlation technique electro-acoustic element comprises magnetic conductive board, be sticked main magnet steel on described magnetic conductive board and the some limits magnet steel corresponding with main magnet steel, conventionally in order to improve magnetic circuit performance, also can between multiple main magnet steel, secondary magnet steel be set, described main magnet steel and secondary magnet steel are sticked on described magnetic conductive board with glue.The left and right consistency of such structural requirement magnetic circuit system will be got well, otherwise, after main magnet steel, secondary magnet steel and limit magnet steel all magnetize, between described magnet steel, can produce and attract each other, cause skew to be lost efficacy, or clip voice coil loudspeaker voice coil, greatly affect the stability of magnetic circuit system, and then affected the acoustical behavior of electro-acoustic element.
Therefore, being necessary to propose a kind of new electro-acoustic element overcomes the problems referred to above in fact.
[utility model content]
The technical problem that the utility model need solve is to provide a kind of magnetic circuit system of stable performance.
According to above-mentioned technical problem, design a kind of magnetic circuit system, it comprises magnetic conductive board, spaced two main magnet steel, secondary magnet steel between adjacent two main magnet steel, be positioned at two limit magnet steel of main magnet steel and secondary magnet steel both sides, be attached at the consequent pole core of secondary magnet steel, and be attached at the train wheel bridge of limit magnet steel, described main magnet steel, secondary magnet steel and limit magnet steel are all positioned on magnetic conductive board, described main magnet steel and limit magnet steel surround described secondary magnet steel jointly, described train wheel bridge is provided with inner side edge and the outer side edges relative with described inner side edge near described consequent pole core, described train wheel bridge is provided with the groove from inner side edge outward side direction depression, described consequent pole core is fixed in described groove.
Preferably, described two train wheel bridges are equipped with groove, be fixed the respectively two ends of described consequent pole core of two grooves.
The utility model further provides a kind of electro-acoustic element, and it comprises magnetic circuit system as above, and it further comprises a basin frame being surrounded by sidewall.
Preferably, two longitudinal end of described train wheel bridge are provided with the Embedded Division that embeds basin frame, and described basin sets up the resettlement section that holds described Embedded Division.
Preferably, described train wheel bridge is provided with the protuberance outstanding to outside from outer side edges, and described basin sets up the draw-in groove that holds described protuberance.
Preferably, described train wheel bridge is provided with through hole, and the position of the corresponding through hole of described basin frame is provided with the reference column with described through hole interference engagement.
Preferably, the side plate that described magnetic conductive board comprises flat board and extends from flat plate buckling, described side plate is between two Embedded Divisions.
Preferably, described electro-acoustic element is multipath magnetic circuit system, and it has two voice coil loudspeaker voice coils, and each voice coil loudspeaker voice coil is respectively around a main magnet steel.
Electro-acoustic element train wheel bridge of the present utility model is provided with the groove of the described consequent pole core that is fixed, and has prevented that secondary magnet steel from producing skew and losing efficacy under attracting, and improved the stability of electro-acoustic element.
[brief description of the drawings]
Fig. 1 is the exploded view of the utility model electro-acoustic element;
Fig. 2 is the schematic diagram of the combination of the utility model magnetic circuit system;
Fig. 3 is the part combination schematic diagram of the utility model electro-acoustic element;
Fig. 4 is the schematic diagram of the utility model electro-acoustic element basin frame.
[embodiment]
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model electro-acoustic element 100 it comprise have by sidewall 31 surround receiving space basin frame 3, be contained in the magnetic circuit system 1 in basin frame 3 and be immobilizated in the vibrational system 2 on basin frame 3.
Vibrational system 2 comprises vibrating diaphragm 21 and the voice coil loudspeaker voice coil 22 that drives vibrating diaphragm 21 to vibrate.
As depicted in figs. 1 and 2, magnetic circuit system 1 comprises magnetic conductive board 13, being sticked is provided with a secondary magnet steel 113 between spaced thereon two main magnet steel 111 of main magnet steel 111, two.Respectively be provided with a limit magnet steel 112 in the both sides of main magnet steel 111 and secondary magnet steel 113.Described main magnet steel 111 and secondary magnet steel 113 are all between both sides magnet steel 112.Described main magnet steel 111 and limit magnet steel 112 are jointly around described secondary magnet steel 113.
Between described main magnet steel 111 and limit magnet steel 113 and secondary magnet steel 112, form magnetic gap (not label), described voice coil loudspeaker voice coil 22 inserts in described magnetic gap.In the present embodiment, described electro-acoustic element 100 is multipath magnetic circuit system, and it has two voice coil loudspeaker voice coils 22, and each voice coil loudspeaker voice coil 22 is respectively around a main magnet steel 111.Described vibrating diaphragm can be the multiple vibrating diaphragms corresponding with voice coil loudspeaker voice coil 22, also an overall vibrating diaphragm.
Described magnetic circuit system 1 also comprises and is attached at the main pole core 121 on main magnet steel 111 surfaces and is sticked at the consequent pole core 132 on secondary magnet steel 113 surfaces.Described main pole core 121 and consequent pole core 123 are made by permeability magnetic material, play magnetic conduction effect.Described magnetic circuit system 1 also comprises the train wheel bridge 14 that is attached at limit magnet steel 112 surfaces.
Described train wheel bridge 14 is slab construction, which is provided with inner side edge and the outer side edges relative with described inner side edge near consequent pole core.Described train wheel bridge 14 is provided with the groove 141 from the outside sidewall direction depression of inner side edge, and described consequent pole core 123 is fixed in this groove 141.Described secondary magnet steel 113 fits tightly with consequent pole core 123.Like this, can play the positioning action of secondary magnet steel 113, prevent that secondary magnet steel 113 from producing skew and affecting the performance of magnetic circuit system 1 under the attraction of main magnet steel 111.
Be different from traditional multipath magnetic circuit system, in the utility model, multiple main magnet steel 111 common corresponding same limit magnet steel 112, can reduce the part of product like this, and simple and easy assembling link makes the left and right consistency of multipath magnetic circuit system better simultaneously, improves the performance of product.
As shown in Figure 3 and Figure 4, described train wheel bridge 14 further comprises that described train wheel bridge 14 is also provided with the Embedded Division 143 along its long axis direction to basin frame sidewall 31 edges from outwards outstanding protuberance 142 of its outer side edges.Corresponding, described basin frame 3 is provided with the resettlement section 32 from the outside surface direction depression of basin frame inner surface, described Embedded Division 143 is accommodated in described resettlement section 32, make described train wheel bridge 14 be fixed on described basin frame 3, on the sidewall 31 of described basin frame 3, be also further provided with some draw-in grooves 311, described draw-in groove 311 and protuberance 142 interference engagement, in the present embodiment, described basin frame 3 is also provided with the reference column 33 proposing on it, described Embedded Division 142 is provided with the through hole with this reference column 33 interference engagement, described Embedded Division 142 is set on described fixed leg 33, thereby further realize coordinating between magnetic circuit system 1 and basin frame 3.
Magnetic conductive board 13 is fixed on the inwall of basin frame 3, and in present embodiment, described magnetic conductive board 13 comprises the side plate 132 of placing the flat board 131 of magnet steel and extending from dull and stereotyped 131 bendings.Described side plate 132 is between two Embedded Divisions 143 of secondary magnet steel 113 homonymies.Preferably, described basin frame inwall is also provided with and accommodates and the sticking part 34 of the described side plate 132 of fitting.Further, described magnetic conductive board 13 can glue together with basin frame 3, and described magnet steel is also fitted on magnetic conductive board 13 by glue, and further fixes by glue and pole piece and train wheel bridge.Certainly, the mode of its laminating is not limited to this.In addition, so-called magnetic conductive board, is also not limited only to tabularly, can be also the bowl bodies with sidewall.
Electro-acoustic element train wheel bridge of the present utility model is provided with the groove of the described consequent pole core that is fixed, and has prevented that secondary magnet steel from producing skew and losing efficacy under attracting, and improved the stability of electro-acoustic element.
Above-described is only execution mode of the present utility model; it should be pointed out that for the person of ordinary skill of the art at this, 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 (8)
1. a magnetic circuit system, it is characterized in that: it comprises magnetic conductive board, spaced two main magnet steel, secondary magnet steel between two main magnet steel, be positioned at two limit magnet steel of main magnet steel and secondary magnet steel both sides, be attached at the consequent pole core of secondary magnet steel and be attached at the train wheel bridge of limit magnet steel, described main magnet steel, secondary magnet steel and limit magnet steel are all positioned on magnetic conductive board, described main magnet steel and limit magnet steel are jointly around described secondary magnet steel, described train wheel bridge is provided with inner side edge and the outer side edges relative with described inner side edge near described consequent pole core, described train wheel bridge is provided with the groove from inner side edge outward side direction depression, described consequent pole core is fixed in described groove.
2. magnetic circuit system according to claim 1, is characterized in that: described two train wheel bridges are equipped with groove, be fixed the respectively two ends of described consequent pole core of two grooves.
3. an electro-acoustic element, is characterized in that: it comprises magnetic circuit system as claimed in claim 1 or 2, and this electro-acoustic element further comprises basin frame and the voice coil loudspeaker voice coil being surrounded by sidewall.
4. electro-acoustic element according to claim 3, is characterized in that: two longitudinal end of described train wheel bridge are provided with the Embedded Division that embeds basin frame, and described basin sets up the resettlement section that holds described Embedded Division.
5. electro-acoustic element according to claim 4, is characterized in that: described train wheel bridge is provided with the protuberance outstanding to outside from outer side edges, and described basin sets up the draw-in groove that holds described protuberance.
6. electro-acoustic element according to claim 5, is characterized in that: described train wheel bridge is provided with through hole, and the position of the corresponding through hole of described basin frame is provided with the reference column with described through hole interference engagement.
7. electro-acoustic element according to claim 6, is characterized in that: the side plate that described magnetic conductive board comprises flat board and extends from flat plate buckling, described side plate is between two Embedded Divisions.
8. electro-acoustic element according to claim 7, is characterized in that: described electro-acoustic element is multipath magnetic circuit system, and it has two voice coil loudspeaker voice coils, and each voice coil loudspeaker voice coil is respectively around a main magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017574.5U CN203747980U (en) | 2014-01-10 | 2014-01-10 | Magnetic circuit system and electroacoustic device employing magnetic circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017574.5U CN203747980U (en) | 2014-01-10 | 2014-01-10 | Magnetic circuit system and electroacoustic device employing magnetic circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747980U true CN203747980U (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017574.5U Expired - Fee Related CN203747980U (en) | 2014-01-10 | 2014-01-10 | Magnetic circuit system and electroacoustic device employing magnetic circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020258143A1 (en) * | 2019-06-27 | 2020-12-30 | 瑞声声学科技(深圳)有限公司 | Sound generation device |
-
2014
- 2014-01-10 CN CN201420017574.5U patent/CN203747980U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020258143A1 (en) * | 2019-06-27 | 2020-12-30 | 瑞声声学科技(深圳)有限公司 | Sound generation device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20220110 |