CN205622863U - Vibrating diaphragm - voice coil loudspeaker voice coil subassembly and system - Google Patents
Vibrating diaphragm - voice coil loudspeaker voice coil subassembly and system Download PDFInfo
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Abstract
The utility model discloses a vibrating diaphragm voice coil loudspeaker voice coil subassembly and system, wherein the former includes vibrating diaphragm, vibration voice coil loudspeaker voice coil and magnetic sensor, the vibrating diaphragm include the vibrating diaphragm body with the plane portion of being fixed in the vibrating diaphragm body on DOME, the vibration voice coil loudspeaker voice coil is fixed in one side of vibrating diaphragm body, intensity of overflow tank is gathered, and magnetic sensor is fixed in on the vibrating diaphragm to the magnetic sensor measurable quantity. The utility model discloses a vibrating diaphragm the voice coil loudspeaker voice coil subassembly has set up a magnetic sensor that can gather intensity of overflow tank on the vibrating diaphragm, can monitor through intensity of overflow tank and vibrate the relative position of voice coil loudspeaker voice coil in the magnetic gap, according to positional information alright the demand of pressing of vibration voice coil loudspeaker voice coil, adjusts the relative position of vibration voice coil loudspeaker voice coil in the magnetic gap through the modes such as direct current that change the pressure in the operatic tunes of back or change among the audio signal, guarantees that the speaker maintains minimum distortion state.
Description
Technical Field
The utility model relates to an acoustics product field, more specifically relates to a vibrating diaphragm-voice coil loudspeaker voice coil subassembly, has applied this vibrating diaphragm-voice coil loudspeaker voice coil system of subassembly.
Background
The loudspeaker is widely applied to daily production and life of people as a sounding device for electronic products such as mobile phones, televisions, computers and the like. The conventional loudspeakers mainly comprise moving-coil loudspeakers, electromagnetic loudspeakers, capacitive loudspeakers, piezoelectric loudspeakers and the like, wherein the moving-coil loudspeakers have the characteristics of relatively simple manufacture, low cost, better low-frequency sound production advantages and the like.
An existing moving-coil speaker is also called a moving-coil speaker module, and generally includes a speaker module housing and a speaker unit, wherein the typical structure of the speaker module housing includes an upper shell and a lower shell, the upper shell and the lower shell are assembled together to form a cavity for accommodating the speaker unit, the speaker unit is positioned in the cavity, and the speaker unit divides the cavity into a front sound cavity and a rear sound cavity. The typical structure of the loudspeaker monomer comprises a vibration system, a magnetic circuit system and an auxiliary system, wherein the auxiliary system comprises a shell capable of accommodating the vibration system and the magnetic circuit system, the vibration system comprises a vibrating diaphragm and a vibrating voice coil fixed on one side of the vibrating diaphragm, the vibrating diaphragm comprises a vibrating diaphragm body and a DOME (Dome top part) fixed on the vibrating diaphragm body, and the vibrating diaphragm body comprises a fixed part fixed with the shell, a folded ring part of a concave or convex structure integrally arranged with the fixed part and a plane part positioned in the folded ring part; the magnetic circuit system comprises a basin frame, a central magnet fixed on the basin frame, a side magnet and a washer; the auxiliary system comprises a housing; a gap is arranged between the central magnet and the side magnets and is called as a magnetic gap, and the vibration voice coil is suspended in the magnetic gap.
Since the relative position of the vibration voice coil in the magnetic gap affects the vibration of the diaphragm, and thus the acoustic performance of the speaker, the poor relative position of the vibration voice coil in the magnetic gap will cause severe distortion of the speaker. However, due to the manufacturing process and environmental influences, such as changes in ambient air pressure, the relative position of the vibrating voice coil in the magnetic gap cannot be maintained at the optimal position, and thus the loudspeaker cannot be maintained in the lowest distortion state.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vibrating diaphragm-voice coil loudspeaker voice coil subassembly, this vibrating diaphragm-voice coil loudspeaker voice coil subassembly can adjust the relative position of vibration voice coil loudspeaker voice coil in the magnetic gap in a flexible way to guarantee that the speaker maintains minimum distortion state.
According to the utility model discloses an aspect provides a vibrating diaphragm-voice coil loudspeaker voice coil subassembly, including vibrating diaphragm, vibration voice coil loudspeaker voice coil and magnetic sensor, wherein, the vibrating diaphragm includes the vibrating diaphragm body and is fixed in DOME on the plane portion of vibrating diaphragm body, the vibration voice coil loudspeaker voice coil is fixed in one side of vibrating diaphragm body, magnetic sensor measurable quantity and collection magnetic induction intensity, just the magnetic sensor is fixed in on the vibrating diaphragm.
Preferably, the magnetic sensor is a hall sensor, and the hall sensor comprises a hall sensor body and a sensor flat cable connected with the hall sensor body.
Preferably, the hall sensor body is located at a center position of the planar portion of the diaphragm body.
More preferably, the DOME is disposed on a side of the diaphragm body away from a magnetic circuit of a speaker unit, the hall sensor body is fixed on a side of the diaphragm body away from the DOME, the four sensor bus lines are disposed on a side of the diaphragm body adjacent to the magnetic circuit, and one end of the sensor bus line connected to the hall sensor body sequentially passes through the diaphragm body and the DOME to connect to the hall sensor body.
Further, be equipped with two on the vibration voice coil loudspeaker voice coil with the voice coil loudspeaker voice coil lead wire that the vibration voice coil loudspeaker voice coil links to each other, two the voice coil loudspeaker voice coil lead wire is respectively certainly short side orientation of vibration voice coil loudspeaker voice coil is kept away from the direction of vibration voice coil loudspeaker voice coil extends, four two liang of orientation differences of sensor winding displacement the voice coil loudspeaker voice coil lead wire direction extends.
Furthermore, the four sensor flat cables are symmetrically arranged in pairs.
Another object of the present invention is to provide a diaphragm-voice coil system, which can automatically calibrate the relative position of the vibrating voice coil in the magnetic gap, so as to ensure that the speaker is kept in the lowest distortion state at any time.
According to the utility model discloses a second aspect provides a vibrating diaphragm-voice coil loudspeaker voice coil system, include the utility model discloses a vibrating diaphragm-voice coil loudspeaker voice coil subassembly and processing unit, processing unit can receive the signal of the magnetic induction density that the magnetic inductor gathered, and according to magnetic induction density acquires the relative position of vibration voice coil loudspeaker voice coil in the magnetic gap, and according to the vibration voice coil loudspeaker voice coil in the magnetic gap the optimal position with relative position acquires the direct current parameter that needs to add in the audio signal, still sends with direct current that direct current parameter corresponds adds the signal in the input current of vibration voice coil loudspeaker voice coil to the relative position of adjustment vibration voice coil loudspeaker voice coil in the magnetic gap.
The utility model discloses a utility model people discovers, among prior art, really there is the serious distortion problem of speaker that leads to because of the relative position of vibration voice coil loudspeaker voice coil in the magnetic gap is not good. Therefore, the technical task to be achieved or the technical problems to be solved by the present invention are never thought or not expected by those skilled in the art, and therefore the present invention is a new technical solution.
The beneficial effects of the utility model reside in that, the utility model discloses a vibrating diaphragm-voice coil loudspeaker voice coil subassembly has set up a magnetic sensor that can gather magnetic induction intensity on the vibrating diaphragm, because the vibration voice coil loudspeaker voice coil is together fixed with the vibrating diaphragm, consequently, the magnetic induction intensity that the magnetic sensor that sets up on the vibrating diaphragm gathered is correlated with the position of vibration voice coil loudspeaker voice coil, can monitor the relative position of vibration voice coil loudspeaker voice coil in the magnetic gap through magnetic induction intensity promptly, according to the positional information alright according to the demand of vibration voice coil loudspeaker voice coil, through the relative position of mode adjustment vibration voice coil loudspeaker voice coil in the magnetic gap such as the direct current that changes the pressure in the back sound intracavity or change audio signal, guarantee that the speaker maintains at minimum.
The utility model discloses a further beneficial effect lies in, the utility model discloses a vibrating diaphragm-voice coil loudspeaker voice coil system's processing unit can receive the signal of the magnetic induction intensity that the magnetic inductor gathered, and the dynamic balance of the relative position of vibration voice coil loudspeaker voice coil in the magnetic gap is realized to the relative position of self-calibration vibration voice coil loudspeaker voice coil in the magnetic gap.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a view angle of an embodiment of a diaphragm-voice coil assembly according to the present invention;
fig. 2 is a schematic structural diagram of another view angle of the diaphragm-voice coil assembly according to the present invention;
fig. 3 is an exploded view of an embodiment of a diaphragm-voice coil assembly according to the present invention;
fig. 4 is an electrical schematic diagram of an embodiment of the diaphragm-voice coil system of the present invention;
FIG. 5 is a flow chart of an embodiment of a method of adjusting the balance of a vibrating voice coil.
The figures are labeled as follows:
the sensor comprises a vibrating diaphragm-1, a vibrating diaphragm body-11, DOME-12, a vibrating voice coil-2, a voice coil lead-21, a Hall sensor body-3 and a sensor flat cable-4.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In order to solve the problem that the speaker that the relative position of vibration voice coil loudspeaker voice coil in the magnetic gap is not good leads to produces serious distortion, the utility model provides a vibrating diaphragm-voice coil loudspeaker voice coil subassembly, as shown in fig. 1 to 3, including vibrating diaphragm 1, vibration voice coil loudspeaker voice coil 2 and magnetic sensor, wherein, vibrating diaphragm 1 includes vibrating diaphragm body 11 and is fixed in DOME12 on the plane portion of vibrating diaphragm body 11, vibration voice coil loudspeaker voice coil 2 is fixed in one side of vibrating diaphragm body 11, magnetic sensor measurable quantity and collection magnetic induction intensity, just magnetic sensor is fixed in on the vibrating diaphragm 1, magnetic sensor is referred in particular to above-mentioned magnetic sensor, and the magnetic field in its measurable quantity space can adopt realization such as hall sensor in practical application.
The utility model provides a magnetic induction intensity detectable and gather the magnetic induction intensity of its fixed department, because the position when magnetic induction intensity and the vibration of vibrating diaphragm 1 is relevant, consequently can obtain the position of vibrating diaphragm 1 in vibration process through magnetic induction intensity, the skilled person in the art should be clear, vibrating diaphragm 1 is together fixed with vibration voice coil loudspeaker voice coil 2, vibration voice coil loudspeaker voice coil 2 is following vibration together when vibrating diaphragm 1 vibrates, consequently this magnetic induction intensity is in the same place with vibration voice coil loudspeaker voice coil 2's position direct correlation, also can know the relative position of vibration voice coil loudspeaker voice coil 2 in the magnetic gap through magnetic induction intensity. The process of obtaining the relative position of the vibration voice coil 2 in the magnetic gap according to the magnetic induction intensity can be determined according to actual requirements, or can be realized by the following method: a table of the magnetic induction and the relative position of the vibration coil 2 in the magnetic gap is established, which may be obtained experimentally or calculated, from which the relative position of the vibration coil 2 in the magnetic gap at a certain magnetic induction value is determined, for example, when the magnetic induction is determined, a parameter of the relative position of the vibration coil 2 in the magnetic gap is determined.
After the structure of the loudspeaker module is fixed, the vibration voice coil 2 has an optimal position in the magnetic gap, and the vibration voice coil at the optimal position can ensure that the loudspeaker is in the lowest distortion state. Therefore, according to the obtained relative position of the vibration voice coil 2 in the magnetic gap, a person skilled in the art can adjust the relative position of the vibration voice coil 2 in various ways to make the vibration voice coil 2 return to the optimal position, and the above-mentioned way of adjusting the relative position of the vibration voice coil 2 can be implemented by the following method: the position of the diaphragm 1 is adjusted by changing the pressure intensity in the back sound cavity, so that the aim of adjusting the relative position of the vibration voice coil 2 in the magnetic gap is fulfilled; or a certain direct current component is added into the audio signal input into the loudspeaker, and the vibration displacement of the vibrating diaphragm 1 in the vibration along the direction vertical to the plane part of the vibrating diaphragm 1 is changed, so that the aim of adjusting the relative position of the vibration voice coil 2 in the magnetic gap is fulfilled. Of course, other variations of the vibration of the diaphragm 1 and/or the position of the vibration coil 2 may be used by those skilled in the art to optimize the position of the vibration coil 2 in the magnetic gap.
The utility model discloses a vibrating diaphragm-voice coil loudspeaker voice coil subassembly has set up a magnetic sensor that can gather magnetic induction intensity on vibrating diaphragm 1, because it is together fixed with vibrating diaphragm 1 to vibrate voice coil loudspeaker voice coil 2, consequently, the magnetic induction intensity that the magnetic sensor that sets up on vibrating diaphragm 1 gathered is correlated with the position of vibration voice coil loudspeaker voice coil 2, can monitor the relative position of vibration voice coil loudspeaker voice coil 2 in the magnetic gap through magnetic induction intensity promptly, according to the positional information alright according to vibration voice coil loudspeaker voice coil 2, through changing the relative position of modes such as the direct current of pressure or the change audio signal in the back sound cavity in the magnetic gap, guarantee that the speaker maintains at minimum distortion state.
Because hall sensor simple structure, sensitivity is high, consequently the utility model discloses a preferred embodiment, magnetic sensor is hall sensor, hall sensor include hall sensor body 3 and with the sensor winding displacement 4 that hall sensor body 3 links to each other. The hall sensor body 3 can be arranged on the diaphragm body 11 of the diaphragm 1 or on the DOME12 as required, and the sensor bus 4 can also be arranged as required on the premise of interfering with other components as little as possible.
Further, in order to more accurately obtain the relative position of the vibration voice coil 2 in the magnetic gap, the hall sensor body 3 is located at the central position of the planar portion of the diaphragm body 11, and the hall sensor body 3 may be fixed on the diaphragm body 11 by, for example, gluing.
Further, in another preferred embodiment of the present invention, the DOME12 is located one side of diaphragm body 11 away from the magnetic circuit of the speaker unit, hall sensor body 3 is fixed on one side of diaphragm body 11 away from DOME12, sensor bus 4 includes four, and four sensor bus 4 is located one side of diaphragm body 11 adjacent to magnetic circuit, and sensor bus 4 and the one end that hall sensor body 3 is connected pass in proper order from diaphragm body 11 with in DOME12 to link to each other with hall sensor body 3, of course, above-mentioned sensor bus 4 need seal the passing place when passing in diaphragm body 11. Because of the higher strength of DOME12 itself, it is more convenient to fix hall sensor body 3 to it, and moreover, the above-mentioned arrangement of sensor bus 4 is favorable to avoiding interfering with peripheral components, and this arrangement can also more accurately acquire the relative position of vibration voice coil 2 in the magnetic gap.
Further, be equipped with on the vibration voice coil loudspeaker voice coil 2 two with the voice coil loudspeaker voice coil lead wire 21 that the vibration voice coil loudspeaker voice coil 2 links to each other, two voice coil loudspeaker voice coil lead wire 21 is respectively certainly the short side orientation of vibration voice coil loudspeaker voice coil 2 is kept away from the direction of vibration voice coil loudspeaker voice coil 2 is extended, four two liang of different orientation of sensor winding displacement 4 the voice coil loudspeaker voice coil lead wire 21 direction is extended, and this kind of arrangement mode is favorable to more conveniently arranging sensor winding displacement 4 and voice coil loudspeaker voice coil lead wire 21. Furthermore, as shown in fig. 2, the single sensor bus 4 may be preferably arranged in a shape of two adjacent sides of a diamond, and the bending point of the shape is located at a position where the vibration voice coil 2 is fixedly connected to the diaphragm body 11.
In order to arrange the sensor lines 4 more conveniently, four of the sensor lines 4 are arranged two by two symmetrically.
As shown in fig. 4, the utility model also provides a vibrating diaphragm-voice coil loudspeaker voice coil system, include the utility model discloses a vibrating diaphragm-voice coil loudspeaker voice coil subassembly and processing unit, processing unit can receive the signal of the magnetic induction density that the magnetic inductor gathered, and according to magnetic induction density acquires the relative position of vibration voice coil loudspeaker voice coil 2 in the magnetic gap, and according to vibration voice coil loudspeaker voice coil 2 in the magnetic gap the optimal position with relative position acquires the direct current parameter that needs to add in the audio signal, still sends will direct current that direct current parameter corresponds adds the signal in the input current of vibration voice coil loudspeaker voice coil 2 to the relative position of adjustment vibration voice coil loudspeaker voice coil 2 in the magnetic gap. The processing unit may be implemented by a Central Processing Unit (CPU) or the like, and the optimal position is the position of the vibrating voice coil 2 in the magnetic gap when the loudspeaker is in the lowest distortion state.
The process of obtaining the relative position of the vibration voice coil 2 in the magnetic gap according to the magnetic induction intensity can be determined according to actual requirements, or can be realized by the following method: a table of the magnetic induction and the relative position of the vibration coil 2 in the magnetic gap is established, which may be obtained experimentally or calculated, from which the relative position of the vibration coil 2 in the magnetic gap at a certain magnetic induction value is determined, for example, when the magnetic induction is determined, a parameter of the relative position of the vibration coil 2 in the magnetic gap is determined. In addition, the process of obtaining the direct current parameter to be added to the audio signal according to the optimal position and the relative position of the vibration voice coil 2 in the magnetic gap can be determined according to actual requirements, or can be realized by the following method: establishing a relation table of the optimal position of the vibration voice coil 2 in the magnetic gap, the relative position of the vibration voice coil 2 in the magnetic gap and the direct current parameter, wherein the table can be obtained through experiments or calculation, and the table can find the corresponding relation between the optimal position of the vibration voice coil 2 in the magnetic gap and the direct current parameter under the relative position parameter of a certain vibration voice coil 2 in the magnetic gap, for example, when the relative position of the vibration voice coil 2 in the magnetic gap is determined, the table can find a direct current parameter corresponding to the optimal position of the vibration voice coil 2 in the magnetic gap.
A certain dc component is added to the audio signal input to the speaker, so that the vibration displacement of the diaphragm 1 when vibrating in the direction perpendicular to the plane of the diaphragm 1 can be changed, thereby achieving the purpose of adjusting the relative position of the vibration voice coil 2 in the magnetic gap.
The utility model discloses a vibrating diaphragm-voice coil loudspeaker voice coil system's processing unit can receive the signal of the magnetic induction density that the magnetic inductor gathered, and the relative position of automatic calibration vibration voice coil loudspeaker voice coil 2 in the magnetic gap realizes vibrating the dynamic balance of the relative position of voice coil loudspeaker voice coil 2 in the magnetic gap.
As shown in fig. 5, the utility model also discloses a method for adjusting the balance of the vibrating voice coil corresponding to the vibrating diaphragm-voice coil assembly and system, which comprises the following steps:
(1) collecting magnetic induction intensity at a certain position on the vibrating diaphragm, wherein the collection of the magnetic induction intensity can be realized by arranging a magnetic sensor on the vibrating diaphragm;
(2) according to the magnetic induction intensity, the relative position of the vibration voice coil in the magnetic gap is obtained, and the process of obtaining the relative position of the vibration voice coil in the magnetic gap according to the magnetic induction intensity can be determined according to actual requirements or realized through the following modes: establishing a relation table of the magnetic induction intensity and the relative position of the vibration voice coil in the magnetic gap, wherein the table can be obtained through experiments or calculation, and the table can be used for searching the relative position of the vibration voice coil in the magnetic gap under a certain magnetic induction intensity value, for example, when the magnetic induction intensity is determined, a parameter of the relative position of the vibration voice coil in the magnetic gap can be searched through the table;
(3) The process of acquiring the direct current parameter to be added into the audio signal according to the optimal position and the relative position of the vibration voice coil in the magnetic gap can be determined according to actual requirements or realized through the following method: establishing a relation table of the optimal position of the vibration voice coil in the magnetic gap, the relative position of the vibration voice coil in the magnetic gap and the direct current parameter, wherein the table can be obtained through experiments or calculation, the table can find the corresponding relation between the optimal position of the vibration voice coil in the magnetic gap and the direct current parameter under the relative position parameter of a certain vibration voice coil in the magnetic gap, for example, when the relative position of the vibration voice coil in the magnetic gap is determined, the table can find the direct current parameter corresponding to the optimal position of the vibration voice coil in the magnetic gap;
(4) the direct current corresponding to the direct current parameters is added into the input current of the vibration voice coil, the relative position of the vibration voice coil in the magnetic gap is adjusted, a certain direct current component is added into the audio signal of the input loudspeaker, the vibration displacement of the vibration diaphragm in the direction vertical to the plane part of the vibration diaphragm can be changed, and therefore the purpose of adjusting the relative position of the vibration voice coil in the magnetic gap is achieved.
Of course, one skilled in the art can readily appreciate that the above steps (1) to (4) can be cycled such that the speaker is always in the lowest distortion state.
The utility model discloses an adjust method accessible vibration voice coil loudspeaker voice coil balanced and obtain the direct current parameter with relative position at the optimum position of magnetic gap with the relative position of vibration voice coil loudspeaker voice coil to add the direct current composition in order to adjust the relative position of vibration voice coil loudspeaker voice coil in the magnetic gap in audio signal, so that the speaker maintains at minimum distortion state.
In order to more accurately acquire the relative position of the vibration voice coil in the magnetic gap, the step (1) is specifically as follows:
and collecting the magnetic induction intensity of the central position of the plane part of the vibrating diaphragm.
Because the optimal position of vibration voice coil loudspeaker voice coil can receive operational environment's influence when the speaker is worked, consequently the utility model discloses an adjust balanced method of vibration voice coil loudspeaker voice coil step (3) specifically preferably can be:
acquiring direct current parameters needing to be added into the audio signal according to the dynamic optimal position and the relative position of the vibration voice coil in the magnetic gap, wherein the dynamic optimal position refers to the position of the vibration voice coil in the magnetic gap when the loudspeaker is in the lowest distortion state under the working condition of the loudspeaker, and the process of acquiring the direct current parameters needing to be added into the audio signal according to the dynamic optimal position and the relative position of the vibration voice coil in the magnetic gap can be determined according to actual requirements or realized by the following method: establishing a relation table of the dynamic optimal position of the vibration voice coil in the magnetic gap, the relative position of the vibration voice coil in the magnetic gap and the direct current parameter, wherein the table can be obtained through experiments or calculation, the table can find the corresponding relation between the dynamic optimal position of the vibration voice coil in the magnetic gap and the direct current parameter under the relative position parameter of a certain vibration voice coil in the magnetic gap, for example, when the relative position of the vibration voice coil in the magnetic gap is determined, the table can find the direct current parameter corresponding to the dynamic optimal position of the vibration voice coil in the magnetic gap; wherein,
The dynamic optimal position is obtained by the following method:
collecting working environment parameters and magnetic induction intensity at a certain position on a vibrating diaphragm, wherein the working environment parameters refer to parameters related to the working environment of the loudspeaker, such as working environment air pressure, working environment humidity or working environment magnetic field and the like;
according to the operational environment parameter, the magnetic induction intensity and the static optimal position of vibration voice coil loudspeaker voice coil in the magnetic gap acquire the dynamic optimal position of vibration voice coil loudspeaker voice coil in the magnetic gap, the above-mentioned static optimal position refers to the speaker and makes the back out, can guarantee the theoretical optimal position of vibration voice coil loudspeaker voice coil in the magnetic gap under the minimum distortion state condition of speaker, according to the process of operational environment parameter, magnetic induction intensity, the static optimal position of vibration voice coil loudspeaker voice coil in the magnetic gap and the dynamic optimal position of vibration voice coil loudspeaker voice coil in the magnetic gap can be confirmed according to actual demand, or realize through following mode: establishing a relation table of working environment parameters, magnetic induction intensity, the static optimal position of the vibration voice coil in the magnetic gap and the dynamic optimal position of the vibration voice coil in the magnetic gap, wherein the table can be obtained through experiments or calculation, the table can be used for searching the corresponding relation of the working environment parameters, the static optimal position of the vibration voice coil in the magnetic gap and the dynamic optimal position of the vibration voice coil in the magnetic gap under a certain magnetic induction intensity, for example, when the magnetic induction intensity and the static optimal position of the vibration voice coil in the magnetic gap are determined, the table can be used for searching the dynamic optimal position parameter of the vibration voice coil in the magnetic gap corresponding to the working environment parameters.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (7)
1. The utility model provides a vibrating diaphragm-voice coil loudspeaker voice coil subassembly, its characterized in that, includes vibrating diaphragm, vibration voice coil loudspeaker voice coil and magnetic sensor, wherein, the vibrating diaphragm includes the vibrating diaphragm body and is fixed in DOME on the plane portion of vibrating diaphragm body, the vibration voice coil loudspeaker voice coil is fixed in one side of vibrating diaphragm body, magnetic sensor measurable quantity and collection magnetic induction intensity, just magnetic sensor is fixed in on the vibrating diaphragm.
2. The diaphragm-voice coil assembly of claim 1, wherein the magnetic sensor is a hall sensor, and the hall sensor comprises a hall sensor body and a sensor bus connected to the hall sensor body.
3. The diaphragm-voice coil assembly of claim 2, wherein the hall sensor body is located at a center of the planar portion of the diaphragm body.
4. The diaphragm-voice coil assembly of claim 2, wherein the DOME is disposed on a side of the diaphragm body away from a magnetic circuit of a speaker unit, the hall sensor body is fixed on a side of the DOME away from the diaphragm body, the number of the sensor cables includes four, and the four sensor cables are disposed on a side of the diaphragm body adjacent to the magnetic circuit, and an end of the sensor cables connected to the hall sensor body sequentially passes through the diaphragm body and the DOME to connect to the hall sensor body.
5. The diaphragm-voice coil assembly of claim 4, wherein two voice coil leads connected to the vibration voice coil are disposed on the vibration voice coil, the two voice coil leads extend from a short side of the vibration voice coil toward a direction away from the vibration voice coil, and every two of the four sensor wires extend toward different directions of the voice coil leads.
6. The diaphragm-voice coil assembly of claim 4 or 5, wherein the four flat sensor wires are arranged in a pairwise symmetric manner.
7. A diaphragm-voice coil system, comprising the diaphragm-voice coil assembly and the processing unit as claimed in any one of claims 1 to 5, wherein the processing unit is capable of receiving the signal of the magnetic induction intensity collected by the magnetic inductor, acquiring the relative position of the vibrating voice coil in the magnetic gap according to the magnetic induction intensity, acquiring the DC parameter to be added into the audio signal according to the optimal position of the vibrating voice coil in the magnetic gap and the relative position, and sending a signal for adding the DC corresponding to the DC parameter into the input current of the vibrating voice coil to adjust the relative position of the vibrating voice coil in the magnetic gap.
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| CN201620246296.XU CN205622863U (en) | 2016-03-28 | 2016-03-28 | Vibrating diaphragm - voice coil loudspeaker voice coil subassembly and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611473A (en) * | 2016-03-28 | 2016-05-25 | 歌尔声学股份有限公司 | Diaphragm-voice coil assembly and system and method for adjusting balance of vibrating voice coil |
| WO2018107512A1 (en) * | 2016-12-14 | 2018-06-21 | 华为技术有限公司 | Method for adjusting diaphragm vibration balancing position and speaker |
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2016
- 2016-03-28 CN CN201620246296.XU patent/CN205622863U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611473A (en) * | 2016-03-28 | 2016-05-25 | 歌尔声学股份有限公司 | Diaphragm-voice coil assembly and system and method for adjusting balance of vibrating voice coil |
| WO2018107512A1 (en) * | 2016-12-14 | 2018-06-21 | 华为技术有限公司 | Method for adjusting diaphragm vibration balancing position and speaker |
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