Loudspeaker capable of improving distortion

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker capable of improving distortion, which comprises a vibrating diaphragm assembly, a voice coil and a magnetic circuit assembly, the vibrating diaphragm assembly comprises a vibrating diaphragm folding ring, and the magnetic circuit assembly comprises an outer magnetic conductive piece located outside the voice coil and an inner magnetic conductive piece located inside the voice coil. The outer magnetic conductive member extends to a position below the diaphragm folding ring, the outer magnetic conductive member protrudes out of the inner magnetic conductive member in the vertical direction, and a chamfer is arranged on one side, close to the voice coil, of a protruding part, protruding out of the inner magnetic conductive member, of the outer magnetic conductive member. Through the structural design of the outer magnetic conductive part, the symmetry of a BL curve in a magnetic circuit of the super-linear large-amplitude loudspeaker is improved, and the nonlinear distortion of the loudspeaker influenced by the asymmetry is solved, so that the sound quality of a product is improved, and better auditory experience is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker with improved distortion. Background Art

[0002] As an indispensable component in electronic products, large-amplitude ultra-linear speakers are becoming the current mainstream design as people's requirements for sound quality continue to increase. In large-amplitude designs, speakers need to reserve a larger vibration margin, that is, the distance between the diaphragm and the magnetic circuit components needs to be larger to ensure that there will be no collision and noise during operation. However, this also brings a problem, that is, the BL (electromechanical coupling factor) symmetry of the voice coil in the magnetic field will be biased towards the diaphragm direction. This asymmetry will affect the nonlinear distortion of the speaker, thereby affecting the auditory experience. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide a loudspeaker with improved distortion in order to overcome the deficiencies in the prior art.

[0004] The utility model solves the technical problem by adopting a technical solution: a speaker with improved distortion, comprising a diaphragm assembly, a voice coil and a magnetic circuit assembly.

[0005] The diaphragm assembly includes a diaphragm fold ring,

[0006] The magnetic circuit assembly includes an outer magnetic conductive part located outside the voice coil and an inner magnetic conductive part located inside the voice coil.

[0007] The outer magnetic conductive member extends to the bottom of the diaphragm fold, making full use of the arched feature of the diaphragm fold, and extending the outer magnetic conductive member outside the voice coil to the bottom of the arched fold to compensate for the asymmetry of the BL curve caused by the large distance between the magnetic circuit assembly and the diaphragm assembly.

[0008] Through simulation, the safety margin of the external magnetic conductor design under the maximum amplitude can be calculated.

[0009] The outer magnetic conductive part protrudes from the inner magnetic conductive part in the vertical direction, and a chamfer is set on the side of the protrusion of the outer magnetic conductive part protruding from the inner magnetic conductive part close to the voice coil. Through the structural design of the outer magnetic conductive part, the symmetry of the BL curve in the magnetic circuit of the super linear large amplitude speaker is improved, thereby improving the sound quality of the product and obtaining a better listening experience.

[0010] Furthermore, the voice coil is located in a groove formed by the outer magnetic conductive member and the inner magnetic conductive member, and the voice coil is connected below the diaphragm assembly.

[0011] The beneficial effects of the utility model are as follows: the loudspeaker of the utility model fully utilizes the arched feature of the diaphragm fold ring, and extends the outer magnetic conductive member outside the voice coil to the bottom of the arched fold ring, so as to compensate for the asymmetry of the BL curve caused by the large distance between the magnetic circuit component and the diaphragm component;

[0012] The outer magnetic conductive part protrudes from the inner magnetic conductive part in the vertical direction, and a chamfer is set on the side of the protrusion of the outer magnetic conductive part protruding from the inner magnetic conductive part near the voice coil. Through the structural design of the outer magnetic conductive part, the symmetry of the BL curve in the magnetic circuit of the super linear large amplitude speaker is improved, and the nonlinear distortion of the speaker affected by asymmetry is solved, thereby improving the sound quality of the product and obtaining a better listening experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the improved design of the utility model. Figure 1 ;

[0015] Figure 2 It is a schematic diagram of the structure of a conventional design;

[0016] Figure 3 This utility model Figure 1 Improve the BL curve and Figure 2 Comparison chart of BL curves in conventional design;

[0017] Figure 4 This is a schematic diagram of the structure of the utility model Figure 2 .

[0018] Numbers in the figure: 1-diaphragm assembly, 11-diaphragm fold, 2-voice coil, 3-magnetic circuit assembly, 31-external magnetic conductive part, 32-internal magnetic conductive part. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] Figure 1 The loudspeaker with improved distortion shown in the figure comprises a diaphragm assembly 1, a voice coil 2 and a magnetic circuit assembly 3.

[0022] The diaphragm assembly 1 includes a diaphragm fold 11,

[0023] The magnetic circuit assembly 3 includes an outer magnetic conductive member 31 located outside the voice coil 2 and an inner magnetic conductive member 32 located inside the voice coil 2.

[0024] The outer magnetic conductive member 31 extends upward to the bottom of the diaphragm fold 11.

[0025] The outer magnetic conductive member 31 protrudes from the inner magnetic conductive member 32 in the vertical direction, and a chamfer is provided on the side of the protrusion of the outer magnetic conductive member 31 protruding from the inner magnetic conductive member 32 close to the voice coil 2. The structural design of the outer magnetic conductive member 31 improves the symmetry of the BL curve in the magnetic circuit of the super linear large amplitude speaker, thereby improving the sound quality of the product and obtaining a better auditory experience.

[0026] The voice coil 2 is located in a groove formed by the outer magnetic conductive member 31 and the inner magnetic conductive member 32 in a ring shape, and the voice coil 2 is connected to the bottom of the diaphragm assembly 1 .

[0027] like Figure 3 As shown, Figure 2 Compared with the conventional design, Figure 1 The improved design makes full use of the arched feature of the diaphragm fold 11, and extends the outer magnetic conductive member 31 outside the voice coil to the bottom of the arched fold to compensate for the asymmetry of the BL curve caused by the large distance between the magnetic circuit component 3 and the diaphragm component. Through simulation, the safety margin of the design of the outer magnetic conductive member 31 under the maximum amplitude can be calculated.

[0028] Example 2

[0029] The difference from Example 1 is that when applied to a double-sided speaker, the upper end of the outer magnetic conductive component 31 extends upward to the bottom of the upper diaphragm fold ring 11, and the lower end of the outer magnetic conductive component 31 extends downward to the top of the lower diaphragm fold ring 11; the upper and lower ends of the outer magnetic conductive component 31 in the vertical direction both protrude from the inner magnetic conductive component 32.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A speaker with improved distortion, characterized in that: It comprises a diaphragm assembly (1), a voice coil (2) and a magnetic circuit assembly (3). The diaphragm assembly (1) comprises a diaphragm fold (11), The magnetic circuit assembly (3) comprises an outer magnetic conductive part (31) located outside the voice coil (2) and an inner magnetic conductive part (32) located inside the voice coil (2). The outer magnetic conductive part (31) extends to the bottom of the diaphragm fold ring (11), and the outer magnetic conductive part (31) protrudes from the inner magnetic conductive part (32) in the vertical direction. A chamfer is provided on the side of the protruding part of the outer magnetic conductive part (31) protruding from the inner magnetic conductive part (32) close to the voice coil (2).

2. The speaker with improved distortion according to claim 1, characterized in that: The voice coil (2) is located in a ring shape in a groove formed by the outer magnetic conductive part (31) and the inner magnetic conductive part (32), and the voice coil (2) is connected to the bottom of the diaphragm assembly (1).

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