Jumping section type voice coil structure

Abstract

The utility model provides a jump section type voice coil structure, which comprises a framework and a coil, the coil is formed by winding a copper wire on the framework, the coil comprises a plurality of coil layers which are sequentially overlapped from inside to outside, each coil layer comprises a plurality of doubling sections which are arranged at intervals and a plurality of jump section connecting sections, the doubling sections are formed by winding copper wires in a doubling manner, and the jump section connecting sections are connected with the doubling sections. And the jump section connecting section is formed by winding a copper wire from the tail end of the previous doubling section to the head end of the next doubling section. By arranging the jump section connecting section on the coil layer, the number of winding coils is reduced, and the winding length of the coil at some parts can be reduced, so that the BL value of some parts of the voice coil in a loudspeaker magnetic circuit is adjusted, the peak shape of a BL curve of the voice coil is avoided, the BL curve is smoother, and the characteristic requirement of a loudspeaker is met.

Description

Technical Field

[0001] This utility model relates to the field of voice coil technology, and more particularly to a skip-segment voice coil structure. Background Technology

[0002] The voice coil is a crucial component of a loudspeaker, primarily composed of a frame and a coil. The BL value, the product of the magnetic field strength (B) in the coil gap and the length (L) of the voice coil conductor, reflects the electromagnetic characteristics of the loudspeaker unit. A higher BL value indicates higher electromagnetic conversion efficiency, enabling the loudspeaker to generate a stronger magnetic field to drive the diaphragm. Therefore, loudspeakers with a high BL value typically exhibit better transient response and higher sensitivity. A loudspeaker with good transient response can quickly and accurately follow changes in the audio signal, resulting in clearer and more natural sound.

[0003] In a traditional voice coil, the coil is made of a copper wire wound in parallel on a frame. When the voice coil is installed in the magnetic circuit of the speaker, the BL curve generated by the magnetic flux B and the voice coil wire length L is peak-shaped, which means that the BL value is particularly large in the middle of the coil, which has an adverse effect on the characteristics of the speaker. Summary of the Invention

[0004] The problem to be solved by this utility model is to provide a skip-segment voice coil structure, which makes the BL curve of the voice coil smooth and meets the characteristic requirements of the speaker.

[0005] To solve the above-mentioned technical problems, a skip-segment voice coil structure provided by this utility model is provided, which includes a skeleton and a coil. The coil is formed by winding a copper wire on the skeleton. The coil includes several coil layers stacked sequentially from the inside to the outside. The coil layer includes several parallel segments and several skip-segment connecting segments. The parallel segments are formed by winding copper wire in parallel. The skip-segment connecting segments are formed by winding copper wire from the end of the previous parallel segment to the beginning of the next parallel segment.

[0006] Preferably, at least one coil layer contains more than one jumper connection segment.

[0007] Preferably, the jumper segments are concentrated in the middle of the coil layer.

[0008] Preferably, it also includes a first lead wire and a second lead wire, which are respectively soldered to both ends of the copper wire.

[0009] The beneficial effects of this utility model are as follows: This utility model provides a jump-segment voice coil structure. The first parallel segment is formed by winding copper wire in parallel on the frame. Then, the copper wire is jump-wired from the end of the first parallel segment and pulled to the starting position of the next parallel segment to form the first jump-segment connecting segment. The end of the first jump-segment connecting segment is then wound in parallel on the frame to form the second parallel segment, and so on. By setting jump-segment connecting segments on the coil layer, the number of winding coils is reduced, which can reduce the winding length of the coil in certain parts, thereby adjusting the BL value of certain parts of the voice coil in the speaker magnetic circuit, avoiding the peak-shaped BL curve of the voice coil, making the BL curve smoother, and meeting the characteristic requirements of the speaker. Attached Figure Description

[0010] Figure 1 A front view of the present invention is shown.

[0011] Figure 2 A top view of the present invention is shown.

[0012] The diagram shows the following symbols: 1. Skeleton; 2. Coil; 3. Coil layer; 4. Parallel segment; 40. Jumper segment connection segment; 41. First lead; 5. Second lead. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.

[0014] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0015] refer to Figure 1-2 .

[0016] This utility model provides a skip-segment voice coil structure, comprising a frame 1 and a coil 2. The coil 2 is formed by winding a copper wire 3 on the frame 1. The coil 2 includes several coil layers 4 stacked sequentially from the inside to the outside. The coil layers 4 include several parallel segments 40 and several skip-segment connecting segments 41 arranged at intervals. The parallel segments 40 are formed by winding the copper wire 3 in parallel. The skip-segment connecting segments 41 are formed by winding the copper wire 3 from the end of the previous parallel segment 40 to the beginning of the next parallel segment 40.

[0017] Its working principle is as follows: the first parallel segment is formed by winding copper wire in parallel onto the frame. Then, the copper wire is skipped from the end of the first parallel segment and pulled to the starting position of the next parallel segment to form the first skipped segment connecting segment. The end of the first skipped segment connecting segment is then wound in parallel onto the frame to form the second parallel segment, and so on. After the innermost coil layer 4 is wound, the copper wire is wound around the surface of the innermost coil layer 4, and the winding of the second coil layer 4 can then begin. By setting the skipped segment connecting segment 41 on the coil layer 4, the number of coils is reduced, which can shorten the winding length of coil 2 in certain parts, thereby adjusting the BL value of certain parts of the voice coil in the speaker magnetic circuit. This avoids the BL curve of the voice coil from having peaks, making the BL curve smoother and meeting the characteristic requirements of the speaker.

[0018] Based on the above embodiments, at least one coil layer 4 contains one or more jumper connection segments 41 to avoid the appearance of peaks on the BL curve.

[0019] Based on the above embodiment, the jumper connection segments 41 are concentrated in the middle of the coil layer 4. Since the center of the BL curve is prone to peak-like shapes, it is necessary to concentrate the jumper winding in the middle of the coil layer 4 to shorten the winding length in the middle of the coil layer 4.

[0020] Based on the above embodiments, it also includes a first lead wire 5 and a second lead wire 6, which are respectively soldered to both ends of the copper wire 3 to facilitate the energization connection of the voice coil.

[0021] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A skip-segment voice coil structure, comprising a frame and a coil, characterized in that, The coil is formed by winding a copper wire around the frame. The coil includes several coil layers stacked sequentially from the inside to the outside. Each coil layer includes several parallel segments and several jumper connecting segments. The parallel segments are formed by winding the copper wire in parallel. The jumper connecting segments are formed by winding the copper wire from the end of the previous parallel segment to the beginning of the next parallel segment.

2. The skip-segment voice coil structure according to claim 1, characterized in that, At least one of the coil layers contains one or more of the jumper connection segments.

3. The skip-segment voice coil structure according to claim 2, characterized in that, The jumper segments are concentrated in the middle of the coil layer.

4. The skip-segment voice coil structure according to claim 3, characterized in that, It also includes a first lead wire and a second lead wire, which are respectively welded to both ends of the copper wire.

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