Voice coil and voice coil forming assembly

Abstract

The present utility model provides a voice coil and a voice coil forming assembly. The voice coil comprises: a voice coil body which is formed by winding a voice coil winding wire and has a rectangular annular structure, and a wire inlet section and a wire outlet section which extend from the voice coil body. The voice coil body comprises: two first straight edges which are arranged opposite to each other, two second straight edges which are arranged opposite to each other, and four arc-shaped portions which connect the two first straight edges and the two second straight edges. The wire inlet section and the wire outlet section each are arranged in the middle of any arc-shaped portion, and the wire inlet section and the wire outlet section respectively extend out of the lower portion and the upper portion of the voice coil body. Compared with the prior art, the voice coil of the present utility model can effectively avoid breakage and disconnection of the voice coil, thereby greatly improving the product performance and reliability.

Description

Voice coils and voice coil molding components Technical Field

[0001] The utility model relates to the technical field of electroacoustic conversion, in particular to a voice coil and a voice coil forming component. Background Art

[0002] With the advent of the internet age, the number of mobile devices continues to rise. Among these mobile devices, mobile phones are undoubtedly the most common and portable. Sound-generating components used to play music and other sounds are widely used in mobile devices like these, and voice coils are particularly important. Technical issues

[0003] In the past, voice coil manufacturing processes involved placing the inlet and outlet wires on the straight edge of the voice coil to save installation space. However, when these locations are located on the straight edge, the lack of adequate support and protection leads to weaker bonding, making it prone to wire dropouts, which in turn affects the product's sound purity, performance, and reliability.

[0004] Therefore, it is necessary to provide a new voice coil to solve the above technical problems. Technical Solutions

[0005] The purpose of the utility model is to provide a voice coil which can increase the bonding strength of the inlet and outlet wires, effectively avoid the voice coil from opening and falling wires, and greatly improve the product performance and reliability.

[0006] In order to achieve the above-mentioned object, in a first aspect, the present invention provides a voice coil, comprising a voice coil body formed by winding a voice coil wire and having a rectangular ring structure, and an inlet wire segment and an outlet wire segment extending from the voice coil body;

[0007] The voice coil body includes two first straight sides arranged opposite to each other, two second straight sides arranged opposite to each other, and four arc-shaped portions connecting the two first straight sides and the two second straight sides; the inlet segment and the outlet segment are respectively arranged at the middle position of any of the arc-shaped portions, and the inlet segment and the outlet segment respectively extend from the bottom and the top of the voice coil body.

[0008] Preferably, the inlet segment and the outlet segment are respectively arranged below and above the middle position of the adjacent arc-shaped portions.

[0009] Preferably, the length of the first straight side is greater than the length of the second straight side.

[0010] Preferably, the inlet segment and the outlet segment are respectively arranged below and above the middle position of the arc-shaped portion at both ends of the second straight side.

[0011] Preferably, the arc-shaped portion is an arc structure.

[0012] In a second aspect, an embodiment of the present invention provides a voice coil forming assembly, the voice coil forming assembly being used to form the above-mentioned voice coil, the voice coil forming assembly comprising a discharge plate;

[0013] The discharge plate includes a discharge plate body, an annular through hole penetrating the discharge plate body, a first arc-shaped groove and a second arc-shaped groove formed by the discharge plate body and spaced apart from each other, and a first groove and a second groove formed by the discharge plate body, wherein the first groove and the second groove are respectively located on a side of the first arc-shaped groove and the second arc-shaped groove away from the through hole; the through hole is used to accommodate the voice coil body;

[0014] A avoidance hole is formed through the connection between the first arc-shaped groove and the first groove or the connection between the second arc-shaped groove and the second groove;

[0015] The first groove is used to place the incoming wire segment of the voice coil, and the avoidance hole is used to place the outgoing wire segment of the voice coil.

[0016] Preferably, the first groove and the second groove have the same structure, and the first arc-shaped groove and the second arc-shaped groove have the same structure.

[0017] Preferably, the groove depth of the first groove is greater than the groove depth of the first arc-shaped groove.

[0018] Preferably, the voice coil forming assembly further includes a third arcuate groove and a fourth arcuate groove formed by the depression of the discharge plate body and spaced apart from each other, the third arcuate groove being away from one side of the first groove and being in the same straight line as the first arcuate groove; the fourth arcuate groove being away from one side of the second groove and being in the same straight line as the second arcuate groove.

[0019] Preferably, the first arc-shaped groove, the second arc-shaped groove, the third arc-shaped groove and the fourth arc-shaped groove have the same structure. Beneficial effects

[0020] Compared to existing technologies, the voice coil and voice coil molding assembly of the present invention feature inlet and outlet sections on the voice coil body, positioned below and above the center of the arc, respectively. The openings for the inlet and outlet wires are positioned in the center of the arc, increasing bonding strength and effectively preventing the voice coil from opening and wire dropout. This significantly improves product performance and reliability, meeting customer needs. Furthermore, a relief hole in the discharge plate of the voice coil molding assembly prevents direct contact between the voice coil's corner radius (R) and the plate, effectively preventing damage to the corner radius and improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0022] FIG1 is a schematic diagram of the structure of a voice coil provided in an embodiment of the present invention;

[0023] FIG2 is a schematic structural diagram of a voice coil molding assembly provided by an embodiment of the present invention;

[0024] FIG3 is a schematic structural diagram of the discharge plate of FIG2 ;

[0025] FIG4 is a cross-sectional view taken along line AA of FIG3 ;

[0026] FIG5 is a diagram of the B local amplifier in FIG3 . Modes for Carrying Out the Invention

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] As shown in FIG1 , an embodiment of the present invention provides a voice coil 100. The voice coil 100 includes a voice coil body 1 formed by winding voice coil wire into a rectangular ring structure, and an inlet wire segment 2 and an outlet wire segment 3 extending from the voice coil body 1. The voice coil body 1 supports the inlet wire segment 2 and the outlet wire segment 3, facilitating their installation.

[0030] The voice coil body 1 includes two opposing first straight sides 11, two opposing second straight sides 12, and four arcuate portions 13 connecting the two first straight sides 11 and the two second straight sides 12. The inlet and outlet segments are positioned in the middle of any of the arcuate portions 13, with the inlet and outlet segments 2 and 3 extending from the bottom and top of the voice coil body 1, respectively. By positioning the inlet and outlet cable openings in the middle of the arcuate portions 13, the bonding strength of the inlet and outlet cables is increased, effectively preventing the voice coil 100 from opening and disconnecting, and significantly improving product performance and reliability.

[0031] In this embodiment, the inlet section 2 and the outlet section 3 are respectively arranged below and above the middle position of the adjacent arc-shaped portion 13. This facilitates the installation of the incoming and outgoing wires on the inlet section 2 and the outlet section 3, respectively, reduces the length of the winding, improves the strength of the incoming and outgoing wires, and increases the service life.

[0032] In this embodiment, the length of the first straight side 11 is greater than the length of the second straight side 12 .

[0033] In this embodiment, the inlet segment 2 and the outlet segment 3 are respectively arranged below and above the middle position of the arc-shaped portion 13 at both ends of the second straight edge 12 .

[0034] In this embodiment, the arc-shaped portion 13 is an arc structure.

[0035] Example 2

[0036] 1 to 5 , an embodiment of the present invention provides a voice coil forming assembly 200 . The voice coil forming assembly 200 is used to form the voice coil 100 of the first embodiment. The voice coil forming assembly 200 includes a discharge plate 20 .

[0037] The discharge plate 20 includes a discharge plate body 201, an annular through hole 202 extending through the discharge plate body 201, a first arcuate groove 203 and a second arcuate groove 204 formed by depressions in the discharge plate body 201 and spaced apart from each other, and a first groove 205 and a second groove 206 formed by depressions in the discharge plate body 201. The first groove 205 and the second groove 206 are respectively located on a side of the first arcuate groove 203 and the second arcuate groove 204 away from the through hole 202. The through hole 202 is used to accommodate the voice coil body 1.

[0038] A relief hole 209 is formed at the connection between the first arc-shaped slot 203 and the first groove 205 or at the connection between the second arc-shaped slot 204 and the second groove 206. The first groove 205 is used to accommodate the incoming wire segment 2 of the voice coil 100, and the relief hole 209 is used to accommodate the outgoing wire segment 3 of the voice coil 100.

[0039] The inlet section 2 of the voice coil 100 is located in the first groove 205, and the outlet section 3 of the voice coil 100 is located in the avoidance hole 209. The avoidance hole 209 on the discharge plate 20 prevents the rounded corner of the voice coil 100 from directly contacting the discharge plate 20, effectively preventing damage to the rounded corner of the voice coil 100 and improving reliability.

[0040] In this embodiment, the first groove 205 and the second groove 206 have the same structure, and the first arc-shaped groove 203 and the second arc-shaped groove 204 have the same structure.

[0041] In this embodiment, the depth of the first groove 205 is greater than that of the first arcuate groove 203. Because the incoming wire segment 2 and the outgoing wire segment 3 are respectively disposed below and above the middle position of the arcuate portion 13, the greater depth of the first groove 205 than the first arcuate groove 203 facilitates the ingoing wire segment 2 and the outgoing wire segment 3 to avoid each other, preventing direct contact and pressure damage between the arcuate portion 13 of the voice coil 100 and the discharge plate 20, thereby enhancing reliability.

[0042] In this embodiment, the voice coil molding assembly 200 further includes a third arcuate groove 207 and a fourth arcuate groove 208 formed by recesses in the discharge plate body 201 and spaced apart from each other. The third arcuate groove 207 is located away from the first groove 205 and is aligned with the first arcuate groove 203. The fourth arcuate groove 208 is located away from the second groove 206 and is aligned with the second arcuate groove 204.

[0043] In this embodiment, the first arc-shaped groove 203 , the third arc-shaped groove 207 and the fourth arc-shaped groove 208 have the same structure.

[0044] In this embodiment, two fixing holes 210 are formed through the discharge plate body 201 at intervals, and the two fixing holes 210 are respectively located on both sides of the through hole 202. The fixing holes 210 are used to fix the discharge plate 20, thereby improving production stability.

[0045] Compared to existing technologies, the voice coil and voice coil molding assembly of the present invention feature inlet and outlet sections on the voice coil body, positioned below and above the center of the arc, respectively. The openings for the inlet and outlet wires are positioned in the center of the arc, increasing bonding strength and effectively preventing the voice coil from opening and wire dropout. This significantly improves product performance and reliability, meeting customer needs. Furthermore, a relief hole in the discharge plate of the voice coil molding assembly prevents direct contact between the voice coil's corner radius (R) and the plate, effectively preventing damage to the corner radius and improving reliability.

[0046] The above is only an embodiment of the present invention. It should be pointed out that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements are all within the scope of protection of the present invention.

Claims

1. A voice coil, comprising a voice coil body in a rectangular ring structure formed by winding a voice coil wire, and an inlet wire segment and an outlet wire segment extending from the voice coil body; characterized in that: The voice coil body includes two first straight sides arranged opposite to each other, two second straight sides arranged opposite to each other, and four arc-shaped portions connecting the two first straight sides and the two second straight sides; the inlet segment and the outlet segment are respectively arranged at the middle position of any of the arc-shaped portions, and the inlet segment and the outlet segment extend from the bottom and the top of the voice coil body respectively.

2. The voice coil according to claim 1, characterized in that The inlet line segment and the outlet line segment are respectively arranged below and above the middle positions of two adjacent arc-shaped portions.

3. The voice coil according to claim 2, characterized in that: The length of the first straight side is greater than the length of the second straight side.

4. The voice coil according to claim 3, characterized in that: The inlet line segment and the outlet line segment are respectively arranged below and above the middle position of the arc-shaped portion at both ends of the second straight side.

5. The voice coil according to claim 1, characterized in that: The arc-shaped portion is an arc structure.

6. A voice coil molding assembly, characterized in that: The voice coil forming assembly is used to form the voice coil according to any one of claims 1 to 5, and the voice coil forming assembly includes a discharge plate; The discharge plate comprises a discharge plate body, a ring-shaped through hole penetrating the discharge plate body, a first arc-shaped groove and a second arc-shaped groove formed by the discharge plate body and spaced from each other, and a first groove and a second groove formed by the discharge plate body, wherein the first groove and the second groove are respectively located on a side of the first arc-shaped groove and the second arc-shaped groove away from the through hole; the through hole is used to accommodate the voice coil body; A avoiding hole is formed through the connection between the first arc groove and the first groove or the connection between the second arc groove and the second groove; The first groove is used for accommodating the incoming wire segment of the voice coil, and the avoidance hole is used for accommodating the outgoing wire segment of the voice coil.

7. The voice coil molding assembly according to claim 6, characterized in that: The first groove and the second groove have the same structure, and the first arc groove and the second arc groove have the same structure.

8. The voice coil molding assembly according to claim 7, characterized in that: The groove depth of the first groove is greater than the groove depth of the first arc-shaped groove.

9. The voice coil molding assembly according to claim 6, characterized in that: The voice coil forming assembly also includes a third arc groove and a fourth arc groove formed by the depression of the discharge plate body and spaced apart from each other, the third arc groove is away from one side of the first groove and is located in the same straight line as the first arc groove; the fourth arc groove is away from one side of the second groove and is located in the same straight line as the second arc groove.

10. The voice coil molding assembly according to claim 9, characterized in that: The first arc-shaped groove, the second arc-shaped groove, the third arc-shaped groove and the fourth arc-shaped groove have the same structure.

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