A speaker

Abstract

The present invention provides a loudspeaker, comprising a voice coil, an amplitude monitoring component, a washer body and a plurality of corrective magnetic field generating components; the voice coil is arranged above the washer body; the plurality of corrective magnetic field generating components are arranged at intervals on the washer body; the amplitude monitoring component is arranged on the voice coil and is electrically connected to the corrective magnetic field generating component; the amplitude monitoring component applies a corresponding current to the corrective magnetic field generating component at a corresponding position according to the vibration detection result of the voice coil; the corrective magnetic field generating component generates a corresponding magnetic field through the corresponding current to change the magnetic induction intensity of the magnetic field passing through the voice coil so as to ensure the consistency of vibration at different positions of the voice coil. The amplitude monitoring component is used to adjust the amplitude of the electrical signal of the plurality of corrective magnetic field generating components, and the principle of electromagnetism is used to change the magnetic induction intensity of different positions of the original magnetic field of the voice coil, so as to adjust the rolling vibration or swinging phenomenon of the voice coil.

Description

Technical Field

[0001] The present invention relates to the technical field of loudspeaker manufacturing, and in particular to a loudspeaker. Background Art

[0002] The current problem with the use of micro speakers and receivers in mobile terminals is the noise of the whole machine, such as the noise of piano music, the abnormal sound when playing drums and bass and other low-frequency components, and the distortion of female voices under high voltage. This kind of noise or abnormal sound and distortion is usually caused by the distorted frequency components caused by the swing of the vibration system when the speaker or speaker module is working, or even the noise caused by the vibration system colliding with the magnetic circuit system. This phenomenon is more common in the whole machine earpiece and speaker module, because the rolling vibration / swaying is mainly caused by the insufficient restraint of the suspension device of the vibration system, the asymmetric driving force caused by the process technology of the magnetic circuit part, and the asymmetric acoustic resistance. In the whole machine earpiece and speaker module, the position of the speaker unit in the whole machine or module shell is not centered, and the sound outlet is opened in one direction, resulting in abnormally complex sound holes in the front and rear cavities and asymmetric acoustic resistance. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a loudspeaker to improve the sound transmission quality of the loudspeaker.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A loudspeaker comprises a voice coil, an amplitude monitoring component, a washer body and a plurality of corrective magnetic field generating components;

[0006] The voice coil is arranged above the washer body;

[0007] The plurality of corrective magnetic field generating components are arranged at intervals on the washer body;

[0008] The amplitude monitoring component is arranged on the voice coil and is electrically connected to the correction magnetic field generating component;

[0009] The amplitude monitoring component applies a corresponding current to the correction magnetic field generating component at a corresponding position according to the vibration detection result of the voice coil;

[0010] The correction magnetic field generating component generates a corresponding magnetic field through the corresponding current to change the magnetic induction intensity of the magnetic field passing through the voice coil so as to ensure the consistency of vibration of different positions of the voice coil.

[0011] The beneficial effects of the present invention are as follows: a loudspeaker provided by the present invention comprises a voice coil, an amplitude monitoring component, a washer body and a plurality of corrective magnetic field generating components; the plurality of corrective magnetic field generating components are arranged at intervals on the washer body; the amplitude monitoring component is arranged on the voice coil and is electrically connected to the corrective magnetic field generating component; the amplitude monitoring component applies a corresponding current to the corrective magnetic field generating component at a corresponding position according to the vibration detection result of the voice coil; the corrective magnetic field generating component generates a corresponding magnetic field through the corresponding current to change the magnetic induction intensity of the magnetic field passing through the voice coil so as to ensure the consistency of vibration of different positions of the voice coil. When the voice coil rolls or swings, the amplitude monitoring component adjusts the amplitude of the electrical signal of the plurality of corrective magnetic field generating components, so that the corrective magnetic field generating components at this end change the magnetic induction intensity of different positions of the original magnetic field of the voice coil through the principle of electromagnetism, and adjust the rolling or swinging of the voice coil through the change of the magnetic induction intensity, so as to achieve the purpose of improving or enhancing the acoustic performance of the loudspeaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Shown is a front view of a speaker according to an embodiment of the present invention;

[0013] Figure 2 Shown is a top view of a loudspeaker according to an embodiment of the present invention;

[0014] Figure 3 Shown is a left side view of a loudspeaker according to an embodiment of the present invention;

[0015] Figure 4 Shown is a front view of the internal structure of a speaker according to an embodiment of the present invention;

[0016] Figure 5 Shown is a cross-sectional view of the internal structure of a speaker according to an embodiment of the present invention;

[0017] Figure 6 Shown is an exploded view of the assembled parts of a speaker according to an embodiment of the present invention;

[0018] Description of labels:

[0019] 1. Voice coil; 2. Washer body; 3. Correction magnetic field generating assembly; 4. Magnetic circuit assembly; 5. Diaphragm assembly; 6. Frame; 7. Support assembly; 8. Basin frame;

[0020] 31. Washer protrusion; 31. Metal winding group. DETAILED DESCRIPTION

[0021] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0022] Please refer to Figures 1 to 6 , a loudspeaker, comprising a voice coil, an amplitude monitoring component, a washer body and a plurality of corrective magnetic field generating components;

[0023] The voice coil is arranged above the washer body;

[0024] The plurality of corrective magnetic field generating components are arranged at intervals on the washer body;

[0025] The amplitude monitoring component is arranged on the voice coil and is electrically connected to the correction magnetic field generating component;

[0026] The amplitude monitoring component applies a corresponding current to the correction magnetic field generating component at a corresponding position according to the vibration detection result of the voice coil;

[0027] The correction magnetic field generating component generates a corresponding magnetic field through the corresponding current to change the magnetic induction intensity of the magnetic field passing through the voice coil so as to ensure the consistency of vibration of different positions of the voice coil.

[0028] Working principle of the present invention: When the voice coil is connected to an electrical signal of a certain amplitude, the voice coil will drive the vibration system to vibrate up and down. Since the amplitude monitoring component is arranged on the voice coil, the amplitude monitoring component will vibrate along with the voice coil. The amplitude monitoring component can detect the vibration of the voice coil when it is working. The working principle of the amplitude monitoring component belongs to the prior art and will not be described here. The amplitude monitoring component is electrically connected to the multiple corrective magnetic field generating components respectively to provide corresponding current. The corrective magnetic field generating components use the working principle of electromagnets to generate corresponding magnetic fields through current to change the magnetic induction intensity at different positions of the voice coil, thereby improving the phenomenon of rolling or swinging of the voice coil.

[0029] When the voice coil vibrates normally, the amplitude monitoring component will not apply current to the correction magnetic field generating component, the correction magnetic field generating component will not work, and the magnetic induction intensity of the original magnetic field will not change.

[0030] When the amplitude monitoring component detects that one or several ends of the voice coil are lower or higher in height, current is applied to the corrective magnetic field generating component at the corresponding position so that the corrective magnetic field generating component at that end generates a corresponding corrective magnetic field through the current size and direction to change the magnetic induction intensity of the original magnetic field. By changing the magnetic induction intensity, the Ampere force F=BIL exerted on the vibration of the voice coil is changed, so that the vibration heights of the four ends of the voice coil are kept consistent, the rolling vibration / swaying is solved, real-time correction is completed, and a balanced state is achieved, thereby improving the sound quality effect and reliability margin.

[0031] From the above description, it can be seen that the beneficial effects of the present invention are: a speaker provided by the present invention includes a voice coil, an amplitude monitoring component, a washer body and a plurality of corrective magnetic field generating components; the plurality of corrective magnetic field generating components are arranged at intervals on the washer body; the amplitude monitoring component is arranged on the voice coil and is electrically connected to the corrective magnetic field generating component; the amplitude monitoring component applies a corresponding current to the corrective magnetic field generating component at the corresponding position according to the vibration detection result of the voice coil; the corrective magnetic field generating component generates a corresponding magnetic field through the corresponding current to change the magnetic induction intensity of the magnetic field passing through the voice coil so as to ensure the consistency of vibration of different positions of the voice coil. When the voice coil rolls or swings, the amplitude monitoring component adjusts the amplitude of the electrical signal of the plurality of corrective magnetic field generating components, so that the corrective magnetic field generating components at this end change the magnetic induction intensity of different positions of the original magnetic field of the voice coil through the principle of electromagnetism, and adjust the rolling or swinging of the voice coil through the change of the magnetic induction intensity, so as to achieve the purpose of improving or enhancing the acoustic performance of the speaker.

[0032] Further, the correction magnetic field generating assembly includes a washer protrusion and a metal winding group;

[0033] The washer protrusions are arranged on the washer body at intervals;

[0034] The metal winding set is sleeved on the washer protrusion;

[0035] The metal winding set is electrically connected to the amplitude monitoring component.

[0036] From the above description, it can be seen that the metal winding set is set on the washer protrusion to form an electromagnet. The overall structure is simple. The magnetic induction intensity of the magnetic field is controlled by multiple electromagnets to improve the rolling vibration of the voice coil.

[0037] Furthermore, a gap is provided between the washer protrusion and the middle portion of the washer body;

[0038] The voice coil is arranged in the gap;

[0039] The correction magnetic field generating component ensures the consistency of vibration of different positions of the voice coil by changing the magnetic induction intensity in the gap.

[0040] It can be seen from the above description that the voice coil of the speaker is mounted on the washer body, and the correction magnetic field generating component adjusts the vibration of the voice coil when it is working by changing the magnetic induction intensity in the gap.

[0041] Furthermore, the plurality of corrective magnetic field generating components are arranged at equal intervals on the washer body.

[0042] It can be seen from the above description that the purpose of arranging the correction magnetic field generating components at equal intervals is to better achieve the rolling or swinging state of the balanced voice coil.

[0043] Furthermore, the plurality of corrective magnetic field generating components are symmetrically arranged about a center point of the voice coil.

[0044] It can be seen from the above description that the purpose of arranging the correction magnetic field generating components symmetrically about the center point of the voice coil is to better balance the rolling or swinging state of the voice coil.

[0045] Further, it also includes a magnetic circuit component;

[0046] The distances between the multiple corrective magnetic field generating components and the magnetic circuit component are equal.

[0047] It can be seen from the above description that when the voice coil rolls or sways, the correction operation can be simplified by making the distance between the magnetic field generating component and the magnetic circuit component equal.

[0048] Further, it comprises four of the corrective magnetic field generating components;

[0049] The four corrective magnetic field generating components are symmetrically arranged on the washer body at the corners close to the voice coil.

[0050] It can be seen from the above description that the purpose of symmetrically arranging the correction magnetic field generating assembly near the corner of the voice coil is to better balance the rolling vibration or swinging state of the voice coil.

[0051] Please refer to Figures 1 to 6 , Embodiment 1 of the present invention is: a loudspeaker, comprising a voice coil 1, an amplitude monitoring component, a washer body 2 and a plurality of corrective magnetic field generating components 3;

[0052] The voice coil 1 is arranged above the washer body 2;

[0053] The plurality of corrective magnetic field generating components 3 are arranged at intervals on the washer body 2;

[0054] The amplitude monitoring component is arranged on the voice coil 1 and is electrically connected to the correction magnetic field generating component 3;

[0055] The amplitude monitoring component applies a corresponding current to the correction magnetic field generating component 3 at a corresponding position according to the vibration detection result of the voice coil 1;

[0056] The correction magnetic field generating component 3 generates a corresponding magnetic field through the corresponding current to change the magnetic induction intensity of the magnetic field passing through the voice coil 1 so as to ensure the consistency of vibration of different positions of the voice coil 1.

[0057] Please refer to Figures 4 to 6Specifically, the correction magnetic field generating assembly 3 includes a washer protrusion 31 and a metal winding group 32;

[0058] The washer protrusions 31 are arranged on the washer body 2 at intervals;

[0059] The metal winding set 32 ​​is sleeved on the washer protrusion 31;

[0060] The metal winding set 32 ​​is electrically connected to the amplitude monitoring component.

[0061] Please refer to Figure 4 and Figure 5 Specifically, a gap is provided between the washer protrusion 32 and the middle portion of the washer body 2;

[0062] The voice coil 1 is arranged in the gap;

[0063] The correction magnetic field generating component 3 ensures the consistency of vibration of different positions of the voice coil 1 by changing the magnetic induction intensity in the gap.

[0064] Please refer to Figure 6 In the device, the magnetic circuit component 4 is arranged below the basin frame 8; the basin frame 8 and the washer body 2 are integrally injection molded; the voice coil 1 is arranged above the basin frame 8; the diaphragm component 5 is arranged above the voice coil 1; a skeleton 6 is also arranged between the voice coil 1 and the diaphragm component 5; the support component 7 is arranged below the voice coil 1 for supporting the voice coil 1.

[0065] Please refer to Figure 4 , Embodiment 2 of the present invention is: In this embodiment, based on Embodiment 1, the plurality of corrective magnetic field generating components 3 are arranged on the washer body 2 at equal intervals.

[0066] Please refer to Figure 4 , Embodiment 3 of the present invention is: In this embodiment, based on Embodiment 1, the multiple correction magnetic field 3 generating components are symmetrically arranged about the center point of the voice coil 1.

[0067] Please refer to Figure 5 , Embodiment 4 of the present invention is: This embodiment further includes a magnetic circuit component 4 on the basis of Embodiment 1;

[0068] The distances between the multiple corrective magnetic field generating components 3 and the magnetic circuit component 4 are equal.

[0069] Specifically, it includes four corrective magnetic field generating components 3;

[0070] The four corrective magnetic field generating components 3 are symmetrically arranged on the washer body 2 at the corners close to the voice coil 1 .

[0071] In summary, the present invention provides a loudspeaker, comprising a voice coil, an amplitude monitoring component, a washer body and a plurality of corrective magnetic field generating components; the plurality of corrective magnetic field generating components are arranged at intervals on the washer body; the amplitude monitoring component is arranged on the voice coil and is electrically connected to the corrective magnetic field generating component; the amplitude monitoring component applies a corresponding current to the corrective magnetic field generating component at a corresponding position according to the vibration detection result of the voice coil; the corrective magnetic field generating component generates a corresponding magnetic field through the corresponding current to change the magnetic induction intensity of the magnetic field passing through the voice coil so as to ensure the consistency of vibration of different positions of the voice coil. When the voice coil rolls or swings, the amplitude monitoring component adjusts the amplitude of the electrical signal of the plurality of corrective magnetic field generating components, so that the corrective magnetic field generating component at this end changes the magnetic induction intensity of different positions of the original magnetic field of the voice coil through the principle of electromagnetism, and adjusts the rolling or swinging of the voice coil through the change of the magnetic induction intensity, so as to achieve the purpose of improving or enhancing the acoustic performance of the loudspeaker. Furthermore, the correction magnetic field generating device includes a washer protrusion and a metal winding group. The metal winding group is sleeved on the washer protrusion to form an electromagnet. The magnetic induction intensity of the magnetic field is controlled by multiple electromagnets to improve the rolling vibration of the voice coil. The structure is simple, with few connecting parts, and effectively ensures the reliability of the work.

[0072] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A loudspeaker, characterized in that: It includes voice coil, amplitude monitoring component, washer body and multiple correction magnetic field generating components; The voice coil is arranged above the washer body; The plurality of corrective magnetic field generating components are arranged at intervals on the washer body; The amplitude monitoring component is arranged on the voice coil and is electrically connected to the correction magnetic field generating component; The amplitude monitoring component applies a corresponding current to the correction magnetic field generating component at a corresponding position according to the vibration detection result of the voice coil; The correction magnetic field generating component generates a corresponding magnetic field through the corresponding current to change the magnetic induction intensity of the magnetic field passing through the voice coil so as to ensure the consistency of vibration of different positions of the voice coil.

2. A speaker according to claim 1, characterized in that: The corrective magnetic field generating assembly includes a washer protrusion and a metal winding group; The washer protrusions are arranged on the washer body at intervals; The metal winding set is sleeved on the washer protrusion; The metal winding set is electrically connected to the amplitude monitoring component.

3. A speaker according to claim 2, characterized in that: A gap is provided between the washer protrusion and the middle portion of the washer body; The voice coil is arranged in the gap; The correction magnetic field generating component ensures the consistency of vibration of different positions of the voice coil by changing the magnetic induction intensity in the gap.

4. A loudspeaker according to any one of claims 1 to 3, characterized in that: The plurality of corrective magnetic field generating components are arranged on the washer body at equal intervals.

5. A loudspeaker according to any one of claims 1 to 3, characterized in that: The plurality of correction magnetic field generating components are symmetrically arranged about a center point of the voice coil.

6. A loudspeaker according to claim 1, characterized in that: Also included is a magnetic circuit assembly; The distances between the multiple corrective magnetic field generating components and the magnetic circuit component are equal.

7. A loudspeaker according to claim 6, characterized in that: It includes four corrective magnetic field generating components; The four corrective magnetic field generating components are symmetrically arranged on the washer body at the corners close to the voice coil.

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