CN207460490U - A kind of acoustical generator - Google Patents
A kind of acoustical generator Download PDFInfo
- Publication number
- CN207460490U CN207460490U CN201721414450.0U CN201721414450U CN207460490U CN 207460490 U CN207460490 U CN 207460490U CN 201721414450 U CN201721414450 U CN 201721414450U CN 207460490 U CN207460490 U CN 207460490U
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- Prior art keywords
- magnetic
- acoustical generator
- side wall
- voice coil
- utility
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Abstract
The utility model provides a kind of acoustical generator, and the acoustical generator includes the housing with accommodating chamber and the vibrational system and magnetic circuit system that are housed in accommodating chamber；Vibrational system includes voice coil and lead, and lead includes the leading-out terminal drawn from voice coil；The magnetic circuit system includes conductive magnetic yoke, and conductive magnetic yoke includes the first side, and first side includes the first side wall corresponding with lead leading-out terminal, and the first side wall includes magnetic conduction side wall and with reference to the side magnetic conductive board for being fixed on the magnetic conduction inside sidewalls surface.The utility model allows the utility model to solve the problems, such as that voice coil 5 vibrates unbalanced by way of increasing side magnetic conductive board, and will not increase voice coil weight, so as to improve the acoustical behavior of acoustical generator；And can cost it is relatively low, simple in structure, the technological process of production is simple, being capable of effectively save production cost.In addition, the utility model can be suitable for single magnetic circuit and three magnetic circuit acoustical generators, applied widely, application is strong.
Description
Technical field
The utility model is related to electro-acoustic product technical fields.More particularly, to a kind of acoustical generator.
Background technology
Acoustical generator is the important acoustic element in electronic equipment, existing acoustical generator include housing with accommodating chamber and
The vibrational system and magnetic circuit system being housed in accommodating chamber, vibrational system include voice coil and lead.In the course of work of loud speaker
In, voice coil leads are leading-out terminal by one end that voice coil is drawn, and voice coil leads are fixing end with the fixed one end of pad, due to voice coil
Lead leading-out terminal and fixed end structure are asymmetric, cause voice coil amplitude uneven, the phenomenon that apparent polarization occurs in voice coil, makes to raise one's voice
The acoustical behavior of device reduces, and especially in Microspeaker, the polarization of voice coil influences bigger to the overall performance of loud speaker.For
It solves the above problems, changes voice coil outgoing line position using the mode of centring disk mostly in the prior art, so as to avoiding voice coil
The imbalance of lead leading-out terminal and fixed end structure, but centring disk cost is excessively high, complex process, and the presence of centring disk
Voice coil vibrations quality is caused to increase, is substantially reduced the acoustical behavior of acoustical generator.
Accordingly, it is desirable to provide a kind of acoustical generator, to solve the above problems.
Utility model content
The purpose of this utility model is that be to provide a kind of acoustical generator, to solve in acoustical generator because of voice coil leads leading-out terminal and
The voice coil polarization problem that fixing end Imbalance in weight is brought.
In order to achieve the above objectives, the utility model uses following technical proposals：
The utility model provides a kind of acoustical generator, and the acoustical generator includes the housing with accommodating chamber and is housed in appearance
Receive the vibrational system and magnetic circuit system of intracavitary；Vibrational system includes voice coil and lead, and lead includes the outlet drawn from voice coil
End, acoustical generator include two be oppositely arranged first while and two be oppositely arranged second while, the lead leading-out terminal corresponds to the first side
Side；The magnetic circuit system includes conductive magnetic yoke, and conductive magnetic yoke includes horizontally arranged base portion and is located at least in the first avris and knot
The first side for being fixed on base edge is closed, first side includes the first side wall corresponding with lead leading-out terminal, described
The first side wall includes magnetic conduction side wall and with reference to the side magnetic conductive board for being fixed on the magnetic conduction inside sidewalls surface.
Preferably, first side has further included second sidewall corresponding with the first side wall, the second sidewall
Magnetic conductivity be less than the first side wall magnetic conductivity.
Preferably, the magnetic conductivity of the magnetic conduction side wall is less than the magnetic conductivity of the side magnetic conductive board.
Preferably, the magnetic conduction side wall includes the recessed portion for being recessed inwardly and being formed by magnetic conduction inside sidewalls surface, described
Side magnetic conductive board is with reference to being fixed in the recessed portion.
Preferably, the bottom of the recessed portion is penetrated through to the upper surface of the base portion.
Preferably, along the first avris extending direction, the recessed portion at least runs through the one end surface of the magnetic conduction side wall
It sets.
Preferably, the conductive magnetic yoke is further included positioned at the second avris and with reference to the second side for being fixed on the base edge
Portion；Second side includes the 3rd side wall and the 4th side wall for integrally being upwardly extended and being formed by the base edge；It is described
Magnetic circuit system further includes the centring magnet for being fixed on the base upper surface；First side and centring magnet and the second side with
The magnetic gap for accommodating the voice coil is collectively formed in centring magnet.
Preferably, the magnetic circuit system further includes the centring magnet for being fixed on the base upper surface；And positioned at second
Avris and with reference to the side magnet for being fixed on the base edge；First side is total to centring magnet and side magnet with centring magnet
With the magnetic gap for forming the receiving voice coil.
Preferably, the magnetic conduction side wall is integrally upwardly extended by the base edge forms.
Preferably, the second sidewall is integrally upwardly extended by the base edge and formed.
The beneficial effects of the utility model are as follows：
Acoustical generator provided by the utility model will not increase sound by way of increasing side magnetic conductive board in magnetic circuit system
On the premise of enclosing weight, solve the problem of traditional acoustical generator voice coil vibrations are uneven, and acoustical behavior is low, improve acoustical generator
Acoustical behavior.On this basis, acoustical generator provided by the utility model further includes the turnup structure being formed on magnetic conduction side wall,
The turnup structure can preferably gather the magnetic line of force, increase the magnetic flux of magnetic circuit system, improve the whole acoustical behavior of loud speaker.
In addition acoustical generator provided by the utility model can be suitable for single magnetic circuit acoustical generator or three magnetic circuit acoustical generators, applied widely,
Application is strong, and also has that cost is relatively low, and simple in structure, the technological process of production is simple, can effectively save production cost etc. it is excellent
Gesture.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the installation diagram of acoustical generator in a kind of embodiment provided by the utility model.
Fig. 2 shows the left view of the magnetic circuit system of Fig. 1.
Fig. 3 shows the sectional view of Fig. 2.
Reference numeral：1- housings, 21- base portions, 22- second sidewalls, 23- magnetic conduction side walls, 24- sides magnetic conductive board, the 3rd sides of 25-
Wall, the 4th side walls of 26-, 3- centring magnets, 5- voice coils, the leading-out terminal of 51- voice coil leads, the fixing end of 52- voice coil leads.
Specific embodiment
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit the scope of protection of the utility model with this.
It should be noted that " first " described in the utility model, " second " be only used for distinguishing one of them and it is wherein another
One；Such as " first while " represent any pair (two) it is opposite while, " the second side " represents that another pair (two) is opposite
Side is not departing from the introduction of the utility model design, and " first " and " second " can also be with reference to the accompanying drawings in 1-3
Direction is named, and such as " the first side wall " can be named as " front side wall " according to Fig. 1, and the utility model repeats no more.
In the course of work of loud speaker, since the leading-out terminal and fixing end of voice coil leads are compared with acoustical generator overall structure
It is disposed asymmetrically, voice coil amplitude imbalance is easily led to, voice coil the phenomenon that apparent polarization occurs, drops the acoustical behavior of loud speaker
It is low.To solve the above-mentioned problems, the utility model is by the improvement to conventional conductive magnetic yoke, and increases in acoustical generator magnetic circuit system
Side magnetic conductive board, so as to eliminate leading-out terminal and fixation end structure due to lead because asymmetry makes acoustical generator entirety acoustical behavior
Into influence.
Specifically, the utility model provides a kind of acoustical generator, Fig. 1 is shown in a kind of embodiment provided by the utility model
Acoustical generator structure diagram, Fig. 2 shows the left view of Fig. 1.As shown in Figure 1, 2, the acoustical generator is included with accommodating chamber
Housing 1 and the vibrational system being housed in accommodating chamber and magnetic circuit system；Vibrational system includes voice coil 5 and lead, and lead includes
Have from voice coil 5 draw leading-out terminal 51, acoustical generator include two be oppositely arranged first while and two be oppositely arranged second while, it is described
Lead leading-out terminal 51 corresponds to the first avris；The magnetic circuit system includes conductive magnetic yoke, and conductive magnetic yoke includes horizontally arranged base portion
21 the first side with the first avris is located at least in and with reference to 21 edge of base portion is fixed on, first side includes and lead
51 corresponding the first side wall of leading-out terminal, the first side wall include magnetic conduction side wall 23 and with reference to being fixed on the magnetic conduction side wall
The side magnetic conductive board 24 of 23 inner surfaces, first side further include the second sidewall being correspondingly arranged with the first side wall
22.Preferably, the magnetic conduction side wall 23 is integrally upwardly extended by 21 edge of base portion and formed, and the second sidewall 22 is by described
21 edge of base portion integrally upwardly extends to be formed.For the different combination of side magnetic conductive board 24 and magnetic conduction side wall 23, described first
Side wall and the thickness of second sidewall 22 may be the same or different, and the utility model is not limited.It should be noted that this
Utility model provides the improvement carried out to the structure of the first side wall in conductive magnetic yoke, compared to conventional second sidewall 22 and magnetic conduction
The symmetrical structure of side wall 23, the utility model proposes increase side magnetic conductive board so that the structure of the first side wall and second sidewall is not in right
Claim to set, therefore those skilled in that art, it is to be understood that in the case where not departing from aforementioned body design, said program has been
It is complete feasible.
Based on above-mentioned improvement, the utility model needs solve be 5 lead leading-out terminal 51 of voice coil and 52 structure of fixing end not
Voice coil 5 vibrates unbalanced problem caused by balance, and therefore, above-mentioned improvement fixes voice coil leads leading-out terminal 51 and voice coil leads
Hold 52 corresponding the first side walls and second sidewall 22 that there is otherness in structure, the otherness of the structure makes the utility model can
To solve the problems, such as that it is unbalanced that voice coil 5 vibrates, and voice coil weight will not be increased, so as to improve the acoustical behavior of acoustical generator.
Under normal circumstances, 5 amplitude of voice coil of 5 lead leading-out terminal 51 of voice coil is smaller compared to 5 lead fixing end 52 of voice coil, makees
For the optimal technical scheme of the above embodiment, the magnetic conductivity of the second sidewall 22 is less than the magnetic conductivity of the first side wall,
Obviously, the magnetic conductivity of the magnetic conduction side wall 23 is less than the magnetic conductivity of the side magnetic conductive board 24.Side magnetic conductive board can be by superconducting magnetic material
Material is made, and the utility model is without being limited thereto.The side magnetic conductive board 24 of high magnetic permeability improves the magnetic of 5 lead leading-out terminal of voice coil, 51 avris
Flux, and then the amplitude of the avris voice coil is increased, therefore can eliminate due to 5 lead leading-out terminal 51 of voice coil and fixing end 52
The amplitude that Imbalance in weight is brought reduces.
In addition, in order not to increase the thickness of the first side wall, the utility model also provides a kind of preferred embodiment, with reference to
Shown in Fig. 1,2,3, specifically, the magnetic conduction side wall 23 includes the recess for being recessed inwardly and being formed by 23 inner surface of magnetic conduction side wall
Portion, the side magnetic conductive board 24 is with reference to being fixed in the recessed portion.Also, in order to which the structure of above-mentioned side magnetic conductive board 24 is made to improve most
Increase the magnetic flux that 5 lead leading-out terminal 51 of voice coil corresponds to avris to big degree, along the first avris extending direction, the recessed portion is extremely
It is set less through the one end surface of the magnetic conduction side wall 23, wherein it is highly preferred that the recessed portion runs through the magnetic conduction side wall
23 two end surfaces.Based on it is identical the reasons why, the bottom of the recessed portion is penetrated through to the upper surface of the base portion 21.In addition, this
Embodiment also provides a kind of preferred embodiment, and the top of the recessed portion keeps certain distance with the roof of magnetic conduction side wall 23, i.e.,
23 top of magnetic conduction side wall as shown in Figure 3 has further included turnup structure 231, which can preferably gather magnetic force
Line so as to further increase the magnetic flux of 5 lead leading-out terminal of voice coil, 51 avris, improves the acoustical behavior of acoustical generator.
Certainly, the above embodiment can be suitable for single magnetic circuit system acoustical generator as shown in Figure 1, as shown in Figure 1, described
Conductive magnetic yoke is further included positioned at the second avris and with reference to the second side for being fixed on 21 edge of base portion；Second side includes
Have and the 3rd side wall 25 and the 4th side wall 26 that are formed integrally are upwardly extended by 21 edge of base portion；The magnetic circuit system further includes
It is fixed on the centring magnet 3 of 21 upper surface of base portion；First side and 3 and second side of centring magnet and centring magnet 3
The magnetic gap for accommodating the voice coil 5 is collectively formed.
Further, the utility model can be applicable to the acoustical generator of three magnetic circuit systems, specifically, the utility model carries
For another embodiment, the magnetic circuit system further includes the centring magnet for being fixed on the base upper surface；And positioned at
Two avris and with reference to the side magnet for being fixed on the base edge；First side and centring magnet and side magnet and centring magnet
The magnetic gap for accommodating the voice coil is collectively formed, i.e., on the basis of a upper embodiment, by the 3rd side wall and the 4th side wall
Correspondence be changed to side magnet, equally can be suitable for the utility model, the above-mentioned usual setting for being arranged to those skilled in the art,
Its advantage and above-mentioned single magnetic circuit system acoustical generator are identical compared to advantage possessed by the prior art, and details are not described herein again.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The row of protection domain.
Claims (10)
1. a kind of acoustical generator, which is characterized in that the acoustical generator includes the housing with accommodating chamber and is housed in accommodating chamber
Vibrational system and magnetic circuit system；
Vibrational system includes voice coil and lead, and lead includes the leading-out terminal drawn from voice coil, and acoustical generator is oppositely arranged including two
First while and two be oppositely arranged second while, the lead leading-out terminal corresponds to the first avris；
The magnetic circuit system includes conductive magnetic yoke, and conductive magnetic yoke includes horizontally arranged base portion and is located at least in the first avris and knot
The first side for being fixed on base edge is closed, first side includes the first side wall corresponding with lead leading-out terminal, described
The first side wall includes magnetic conduction side wall and with reference to the side magnetic conductive board for being fixed on the magnetic conduction inside sidewalls surface.
2. a kind of acoustical generator according to claim 1, which is characterized in that first side has further included and first side
The corresponding second sidewall of wall, the magnetic conductivity of the second sidewall are less than the magnetic conductivity of the first side wall.
3. a kind of acoustical generator according to claim 1, which is characterized in that the magnetic conductivity of the magnetic conduction side wall is led less than the side
The magnetic conductivity of magnetic sheet.
4. a kind of acoustical generator according to claim 1, which is characterized in that the magnetic conduction side wall includes by magnetic conduction inside sidewalls
Surface is recessed inwardly the recessed portion to be formed, and the side magnetic conductive board is with reference to being fixed in the recessed portion.
5. a kind of acoustical generator according to claim 4, which is characterized in that the bottom of the recessed portion is penetrated through to the base portion
Upper surface.
6. a kind of acoustical generator according to claim 4, which is characterized in that along the first avris extending direction, the recessed portion is extremely
It is set less through the one end surface of the magnetic conduction side wall.
7. a kind of acoustical generator according to claim 1, which is characterized in that the conductive magnetic yoke is further included positioned at the second avris and knot
Close the second side for being fixed on the base edge；
Second side includes the 3rd side wall and the 4th side wall for integrally being upwardly extended and being formed by the base edge；
The magnetic circuit system further includes the centring magnet for being fixed on the base upper surface；
The magnetic gap for accommodating the voice coil is collectively formed with centring magnet with centring magnet and the second side in first side.
8. a kind of acoustical generator according to claim 1, which is characterized in that the magnetic circuit system, which further includes, is fixed on the base portion
The centring magnet of upper surface；And
Positioned at the second avris and with reference to the side magnet for being fixed on the base edge；
The magnetic gap for accommodating the voice coil is collectively formed with centring magnet with centring magnet and side magnet in first side.
9. a kind of acoustical generator according to claim 1, which is characterized in that the magnetic conduction side wall from the base edge one to
On extend to form.
10. a kind of acoustical generator according to claim 2, which is characterized in that the second sidewall is by base edge one
It upwardly extends to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414450.0U CN207460490U (en) | 2017-10-30 | 2017-10-30 | A kind of acoustical generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414450.0U CN207460490U (en) | 2017-10-30 | 2017-10-30 | A kind of acoustical generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207460490U true CN207460490U (en) | 2018-06-05 |
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ID=62282425
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721414450.0U Expired - Fee Related CN207460490U (en) | 2017-10-30 | 2017-10-30 | A kind of acoustical generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207460490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062115A1 (en) * | 2020-09-23 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Sound production device |
-
2017
- 2017-10-30 CN CN201721414450.0U patent/CN207460490U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062115A1 (en) * | 2020-09-23 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Sound production device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180605 Termination date: 20201030 |