CN203136152U - Electromagnetic loudspeaker - Google Patents
Electromagnetic loudspeaker Download PDFInfo
- Publication number
- CN203136152U CN203136152U CN 201320031538 CN201320031538U CN203136152U CN 203136152 U CN203136152 U CN 203136152U CN 201320031538 CN201320031538 CN 201320031538 CN 201320031538 U CN201320031538 U CN 201320031538U CN 203136152 U CN203136152 U CN 203136152U
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- China
- Prior art keywords
- magnet steel
- magnetic
- substrate
- limit
- conduction portion
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Abstract
The utility model provides an electromagnetic loudspeaker. The electromagnetic loudspeaker comprises a magnetic circuit system and a vibration system, wherein the magnetic circuit system comprises a base plate, an inner magnetic steel fixed on the base plate, an edge magnetic steel which is arranged to surround the inner magnetic steel and has a certain distance from the inner magnetic steel, and an upper clamp plate which is bonded on the edge magnetic steel, the upper clamp plate comprises a magnetic conductive portion bonded with the edge magnetic steel and a limit portion, and the limit portion is bent from the magnetic conductive portion, extends and presses against the base plate. The electromagnetic loudspeaker can realize effective fixing of the edge magnetic steel, so glue failure caused by high temperature, high moisture or falling-off is avoided, and failure of the edge magnetic steel is further avoided.
Description
[technical field]
The utility model relates to a kind of magnetic speaker, especially a kind of magnetic speaker that is applied in the mobile communication equipment.
[background technology]
Along with science and technology development, the progress of society, electronic product obtains a large amount of popularizing, and in order to obtain better enjoyment acoustically, people are more and more higher to the performance requirement of magnetic speaker.Magnetic circuit system is as one of vitals in the sound-producing device, and its quality directly affects the performance of magnetic speaker.
The magnetic circuit system of correlation technique magnetic speaker comprises substrate, be fixed on the described substrate interior magnet steel and around the limit magnet steel of magnet steel in described, be provided with magnetic gap between magnet steel and the described limit magnet steel in described.In the prior art, described interior magnet steel and limit magnet steel are sticked on substrate with glue usually.Can produce after interior magnet steel, limit magnet steel magnetize and attract each other.Such structure or under the improper use situation about falling, causes the glue of limit magnet steel to lose efficacy under hot and humid environment easily, is attracted by interior magnet steel and loses efficacy.
Therefore, being necessary to propose a kind of new magnetic speaker overcomes the problems referred to above in fact.
[utility model content]
The technical problem that the utility model need solve provides a kind of magnetic speaker of stable performance.
According to above-mentioned technical problem, designed a kind of magnetic speaker, it comprises magnetic circuit system and vibrational system, described magnetic circuit system comprises substrate, be fixed on interior magnet steel on the described substrate, around interior magnet steel setting and with interior magnet steel limit magnet steel separated by a distance and the train wheel bridge on the magnet steel of described limit of being sticked, described train wheel bridge comprises the magnetic conduction portion that is sticked mutually with the limit magnet steel and the limiting section that extends and connect with substrate from the bending of magnetic conduction portion.
Preferably, described substrate is provided with breach, and described limiting section is provided with the protuberance that extends to orientation substrate, and described protuberance is connected on the described breach.
Preferably, described limit magnet steel is attached on the described substrate.
Preferably, described train wheel bridge and described substrate are structure as a whole.
Preferably, described limiting section is positioned at magnetic conduction portion near a side of magnet steel, has two limiting sections in each magnetic conduction portion, lays respectively at the two ends of magnetic conduction portion, and described limiting section, magnetic conduction portion and substrate surround a hollow bulb.
Preferably, the protuberance that described limit magnet steel comprises body and the magnet steel direction is given prominence in the body mediad, described protuberance inserts described hollow bulb, and described body is connected on the limiting section.
Preferably, described substrate is strip, and the limiting section of described train wheel bridge is positioned on the major axis limit of substrate, and described substrate also is provided with from the minor axis limit to the kink of magnetic circuit system direction bending.
Preferably, described magnetic speaker also comprises the basin frame of accommodating substrate, and described basin frame comprises diapire and the sidewall that extends from diapire, and described sidewall is provided with the draw-in groove of fixing base.
Preferably, described limit magnet steel glues together mutually with described train wheel bridge and connects with the diapire of described basin frame.
The train wheel bridge of magnetic speaker of the present utility model is provided with the limiting section of rolling over extension and connecting with substrate to orientation substrate from magnetic conduction portion, fixed edge magnet steel effectively, thereby prevent that glue hot and humid or that situation such as fall causes lost efficacy, the limit magnet steel is attracted and lost efficacy.
[description of drawings]
Fig. 1 is the exploded view of first kind of execution mode of the utility model magnetic speaker;
Fig. 2 is the substrate of first kind of execution mode of the utility model magnetic speaker and the combination schematic diagram of train wheel bridge;
Fig. 3 is the part assembling schematic diagram of first kind of execution mode of the utility model magnetic speaker;
Fig. 4 is the decomposing schematic representation of the another kind of execution mode of the utility model magnetic speaker;
Fig. 5 is the schematic diagram of the another kind of execution mode magnet frame of the utility model magnetic speaker.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, be first kind of execution mode of the utility model magnetic speaker 100, it comprises basin frame 3 with receiving space, be contained in the magnetic circuit system 2 in the basin frame 3 and be immobilizated in vibrational system 1 on the basin frame 3.
Described vibrational system 1 comprises the vibrating diaphragm 11 that is overlapped on the basin frame 3 and the voice coil loudspeaker voice coil 12 that drives vibrating diaphragm 11 vibrations.Described vibrating diaphragm 11 comprises the ball top 111 that is positioned at middle position and the ring portion 112 that links to each other with the ball top.Described ball top can also can be other structures such as circular arc for slab construction, and described ball top and ring portion can also can be structure as a whole for the split structure.In the present embodiment, described ball top and ring portion are structure as a whole, and described ball top is slab construction.Can also be provided for adding the jolting plate 13 of strong vibration on the described vibrating diaphragm 11.
As depicted in figs. 1 and 2, described magnetic circuit system 2 comprises substrate 21, is fixed in interior magnet steel 221 and limit magnet steel 222 on the substrate 21.Described limit magnet steel 222 is separated by a distance with described interior magnet steel 221.Described substrate 21 is slab construction, and described substrate 21 is strip, is specially rectangle.The minor axis limit of described substrate 21 is provided with the kink 212 that extends to the bending of vibrational system direction.Four jiaos of described substrate 21 are provided with breach 213.Described magnetic circuit system 2 also comprises the pole piece 231 that is attached at interior magnet steel 221 surfaces and the train wheel bridge 232 that is attached at limit magnet steel 222 surfaces.Described pole piece 231 and train wheel bridge 232 are made by permeability magnetic material, the magnetic conduction effect of magnet steel 221 and limit magnet steel 222 in playing.Described train wheel bridge 232 comprises the magnetic conduction portion 2321 that is sticked mutually with limit magnet steel 222 and the limiting section 2322 that extends from 2321 bendings of magnetic conduction portion.Described limiting section 2322 is positioned at magnetic conduction portion 2321 near a side of magnet steel 221, has two limiting sections 2322 in each magnetic conduction portion 2321, and described limiting section 2322 lays respectively at the two ends of magnetic conduction portion 2321.Described limiting section 2322 is provided with the protuberance 2323 that extends to substrate 21 directions.Described protuberance 2323 is connected on the described breach 213, and fixing with described breach 213 gummeds.Surround a hollow bulb 210 between described limiting section 2322, magnetic conduction portion 2321 and the substrate 21.The protuberance 2222 that described limit magnet steel 222 comprises body 2221 and magnet steel 221 directions are given prominence in body 2221 mediads, described protuberance 2222 inserts described hollow bulb 210, and described body 2221 is connected on the limiting section 2322.
As shown in Figure 3, shown in basin frame 3 comprise diapire (not label) and the sidewall 30 that extends from diapire, described sidewall 30 and diapire surround the receiving space of accommodating substrate 21 jointly, described sidewall 30 is provided with a plurality of draw-in grooves 31 for fixing base 21.Described draw-in groove 31 comprises that one is supported wall 311 and supports wall 311 extended two limited walls 312 certainly.Described kink 212 inserts in the described draw-in groove 31, is sticked supporting on the wall 311 and connecting with two limited walls 312 respectively, thereby realizes fixing between substrate 21 and the basin frame 3.Certainly, fixing means is not limited only to this, and described draw-in groove also can be fixed other positions such as train wheel bridges.Described magnetic speaker can also be provided with and cover the protecgulum 4 that is connected on the basin frame 3, and described protecgulum 4 has vocal hole 41.
As shown in Figure 4, be another embodiment of the utility model magnetic speaker, roughly the same with first kind of embodiment, different is that in the present embodiment, substrate and train wheel bridge are structure as a whole, and are together to form a magnet frame.
Concrete, described electromagnet loud speaker 100 ' it comprise basin frame 3 with receiving space ', be housed in the magnetic circuit system 2 of basin frame 3 ' interior ' and vibrational system 1 '.Described basin frame 3 ' comprise diapire (not label) and the sidewall 30 that extends from diapire '.Described sidewall 30 ' surround receiving space jointly with diapire.Described vibrational system 1 ' comprise vibrating diaphragm 11 ', drive the voice coil loudspeaker voice coil 12 of vibrating diaphragm 11 ' motion ' and be attached on the vibrating diaphragm for the stiffener 13 that adds strong vibration '.
Described magnetic circuit system 2 ' comprise magnet frame 21 ', be fixed in magnet frame 21 ' interior magnet steel 221 ' and with the limit magnet steel 222 of interior magnet steel 221 ' separated by a distance '.The substrate 211 of described magnet frame 21 ' comprise slab construction ', with the magnetic conduction portion 214 of substrate 211 ' separated by a distance ' with extend from magnetic conduction portion 214 ' bending and with the limiting section 213 of substrate 211 ' link to each other '.Described substrate 211 ' be strip, be specially rectangle.The described substrate 211 of described limiting section 213 ' be positioned at ' the major axis limit on.Described substrate 211 ' the minor axis limit on also be provided with the kink 212 that extends to vibrational system 1 ' direction bending '.Each magnetic conduction portion 214 ' on respectively have two limiting sections 213 ', lay respectively at magnetic conduction portion 214 ' two ends.Described substrate 211 ', a hollow bulb 215 of limiting section 213 ' and magnetic conduction portion 214 ' surround jointly '.Described limit magnet steel 222 ' comprise body 2221 ' and magnet steel 221 ' direction is outstanding in body 2221 ' mediad protuberance 2222 '.Described limit magnet steel 222 ' comprise upper surface 2223 ' and lower surface on the other side (not label), described upper surface 2223 ' be sticked described magnetic conduction portion 214 ' on.The described hollow bulb 210 of described protuberance 2222 ' insertion ', described body 2221 ' be connected to limiting section 213 ' on.Described lower surface can be sticked described substrate 221 ' on, also can be sticked described basin frame 3 ' diapire on, in the present embodiment, described limit magnet steel be connected to basin frame 3 ' diapire on.In described magnet steel 221 ' be sticked described substrate 211 ' central authorities.Magnet steel 221 in described ' and limit magnet steel 222 ' between form magnetic gap (not shown), described voice coil loudspeaker voice coil 12 ' be inserted in the described magnetic gap.The pole piece 231 on magnet steel 221 in described magnetic circuit system 2 ' also comprise is attached at ' surface '.Described pole piece 231 ' made by permeability magnetic material, play in magnet steel 221 ' the magnetic conduction effect.Described magnet frame 21 is made by permeability magnetic material, described magnetic conduction portion 214 ' with described kink 212 ' all have the magnetic conduction effect, can guarantee that the magnetic field at voice coil loudspeaker voice coil 12 ' place evenly distributes.In the present embodiment, described substrate is rectangle, corresponding described in magnet steel be rectangle, described magnetic conduction portion has two, corresponding limit magnet steel has two, lays respectively at the outside on two major axis limits of described substrate.Certainly, this is one of them execution mode, in fact, described interior magnet steel also can be other shapes, and the quantity of limit magnet steel also is not limited only to this, can reference substrate and the shape of interior magnet steel and described magnetic field size cases and arrange, for example described substrate also can be square, is equipped with train wheel bridge on described four limits, and described substrate also can be polygon, corresponding, described limit magnet steel is a plurality of.As long as guarantee that the even distribution in magnetic field that produces namely is feasible.Magnet steel and limit magnet steel all are to fit with glue and described magnet frame in described, and certainly, the mode of its applying is not limited thereto.
The train wheel bridge of magnetic speaker of the present utility model is provided with the limiting section that bends extension and connect with substrate to orientation substrate from magnetic conduction portion, fixed edge magnet steel effectively, thereby prevent that glue hot and humid or that situation such as fall causes lost efficacy, the limit magnet steel is attracted and lost efficacy.
Above-described only is execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (9)
1. magnetic speaker, it comprises magnetic circuit system and vibrational system, described magnetic circuit system comprises substrate, be fixed on interior magnet steel on the described substrate, around interior magnet steel setting and with interior magnet steel limit magnet steel separated by a distance and the train wheel bridge on the magnet steel of described limit of being sticked, it is characterized in that: described train wheel bridge comprises the magnetic conduction portion that is sticked mutually with the limit magnet steel and the limiting section that extends and connect with substrate from the bending of magnetic conduction portion.
2. magnetic speaker according to claim 1, it is characterized in that: described substrate is provided with breach, and described limiting section is provided with the protuberance that extends to orientation substrate, and described protuberance is connected on the described breach.
3. magnetic speaker according to claim 2, it is characterized in that: described limit magnet steel is attached on the described substrate.
4. magnetic speaker according to claim 1, it is characterized in that: described train wheel bridge and described substrate are structure as a whole.
5. magnetic speaker according to claim 1, it is characterized in that: described limiting section is positioned at magnetic conduction portion near a side of magnet steel, have two limiting sections in each magnetic conduction portion, lay respectively at the two ends of magnetic conduction portion, described limiting section, magnetic conduction portion and substrate surround a hollow bulb.
6. magnetic speaker according to claim 5 is characterized in that: described limit magnet steel comprise body and in the body mediad the outstanding protuberance of magnet steel direction, described protuberance inserts described hollow bulb, described body is connected on the limiting section.
7. magnetic speaker according to claim 1, it is characterized in that: described substrate is strip, and the limiting section of described train wheel bridge is positioned on the major axis limit of substrate, and described substrate also is provided with from the minor axis limit to the kink of magnetic circuit system direction bending.
8. magnetic speaker according to claim 1, it is characterized in that: described magnetic speaker also comprises the basin frame of accommodating substrate, and described basin frame comprises diapire and the sidewall that extends from diapire, and described sidewall is provided with the draw-in groove of fixing base.
9. magnetic speaker according to claim 8 is characterized in that: described limit magnet steel glues together mutually with described train wheel bridge and connects with the diapire of described basin frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031538 CN203136152U (en) | 2013-01-18 | 2013-01-18 | Electromagnetic loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031538 CN203136152U (en) | 2013-01-18 | 2013-01-18 | Electromagnetic loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203136152U true CN203136152U (en) | 2013-08-14 |
Family
ID=48944084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320031538 Expired - Fee Related CN203136152U (en) | 2013-01-18 | 2013-01-18 | Electromagnetic loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203136152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686557A (en) * | 2013-11-28 | 2014-03-26 | 歌尔声学股份有限公司 | Electroacoustic transducer |
| CN107396262A (en) * | 2017-08-07 | 2017-11-24 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic equipment |
-
2013
- 2013-01-18 CN CN 201320031538 patent/CN203136152U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686557A (en) * | 2013-11-28 | 2014-03-26 | 歌尔声学股份有限公司 | Electroacoustic transducer |
| KR101782449B1 (en) * | 2013-11-28 | 2017-09-28 | 고어텍 인크 | Electroacoustic transducer |
| US9838796B2 (en) | 2013-11-28 | 2017-12-05 | Goertek Inc. | Electroacoustic transducer |
| CN107396262A (en) * | 2017-08-07 | 2017-11-24 | 瑞声声学科技(深圳)有限公司 | Loudspeaker and electronic equipment |
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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: 20130814 Termination date: 20220118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |