Tape paper for sound coil

Abstract

The invention provides tape paper for a sound coil, which comprises a main body, and a plurality of air outlet parts are arranged on the main body. According to the utility model, the plurality of air outlet parts are arranged on the tape paper, air accumulation during adhesion of the tape paper can be prevented, and air can be quickly discharged from the air outlet parts, so that the adhesive force of the roll paper is improved, disconnection between parts caused by poor adhesion is prevented, and the performance stability of the loudspeaker is further improved.

Description

Technical Field

[0001] The invention mainly relates to the technical field of speaker coils, and in particular to a tape paper for speaker coils. Background Art

[0002] The speaker coil (also known as the voice coil) is an important component of a speaker. In the prior art, the speaker coil usually includes a frame and a coil wound on the frame. During speaker assembly, the speaker coil needs to be connected to other components of the speaker, such as the elastic wave.

[0003] As described in the background section of U.S. Patent Publication No. US2009046885A1, in conventional speakers, a voice coil is inserted into a paper cone, which is then glued directly to a damper and the paper cone. However, due to the limited bonding area between the voice coil and the damper, the glue can melt due to the heat generated by the vibration of the voice coil, causing the voice coil and the damper to become disconnected. To address this issue, the same U.S. patent application discloses a mounting structure for a speaker damper, which is used to securely attach the damper to the voice coil. The structure includes an upper support cup secured to the speaker cone to secure the damper around the voice coil, an inner horizontal portion, an annular flange extending vertically downward from the inner horizontal portion and inserted into a central through-hole in the damper, and a lower support cup having an inner step and a plurality of top hooks that are inserted into the mounting holes of the damper and secured to the positioning holes of the upper support cup.

[0004] However, adopting this structure will make the structure of the speaker complicated, which will make assembly difficult and increase the cost when manufacturing and assembling the speaker.

[0005] Therefore, in the prior art, paper tape is used to secure the speaker coil and connect it to other speaker components, preventing the speaker coil from shifting or falling out of the speaker. For example, Chinese patent publication CN113727261A discloses a speaker coil positioning structure using kraft paper. The speaker coil comprises a hollow cylindrical frame and a coil, which is wrapped around the outer surface of the frame. The kraft paper is adhered to the connection between the frame and the coil to secure the coil, preventing it from falling out under high vibration conditions.

[0006] However, conventional tape often develops twisted or wrinkled areas when adhesive is applied to the adhesive area. Air can become trapped in these areas, causing the tape to swell. Because these areas are not fully bonded to the coil bobbin, overall adhesion is poor. During speaker assembly, the tape is often also bonded to other speaker components, such as the speaker damper. Because the areas between the coil bobbin and the tape where air has accumulated are not bonded to each other, this can lead to poor adhesion and even disconnection between the components, resulting in poor speaker performance. Summary of the Invention

[0007] Therefore, the main object of the present invention is to provide a tape paper for a speaker coil, which can solve the problems of air accumulation and poor adhesion caused by using conventional tape paper in the prior art.

[0008] To achieve the above objectives, the present invention provides a tape for speaker coils. The tape comprises a main body provided with a plurality of air outlets. The plurality of air outlets prevents air accumulation caused by adhesion of the tape, allowing air to be quickly expelled from the air outlets, thereby preventing poor adhesion.

[0009] Preferably, the air outlet portion on the speaker coil tape of the present invention is a through hole. Furthermore, the shape of the through hole can be any one of circular, elliptical, rectangular, square, and triangular.

[0010] Preferably, the through holes are arranged at equal intervals. This uniform arrangement results in more uniform bonding and improved adhesion performance. Preferably, the spacing between the through holes can be 2.5 mm to 3.5 mm. Experiments have shown that a spacing between the holes of 2.5 mm to 3.5 mm provides the best bonding performance.

[0011] Preferably, the spacing between the through holes can be 3 mm. Furthermore, the aperture of the plurality of through holes can be 0.6 mm. Experiments have shown that when the hole spacing is 3 mm and the aperture is 0.6 mm, the bonding effect is better.

[0012] Preferably, the material of the tape paper can be selected from any one of metal, polyimide film, glass fiber, Nomi paper, Xuanhua paper or a composite material of these materials. Further, the metal can be aluminum.

[0013] The present invention also provides a voice coil using the voice coil tape. The voice coil further includes a coil bobbin, wherein the voice coil tape can be configured to be adhered to the coil bobbin by an adhesive so that air between the coil bobbin and the tape is discharged through an air outlet on the tape.

[0014] The present invention also provides a speaker using the above-mentioned voice coil, further comprising a damper, which can be bonded to the voice coil tape using an adhesive. In this speaker, the voice coil tape can be configured so that the adhesive permeates around the air outlet of the tape to increase the adhesion between the tape and the damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] It should be noted that one or more embodiments of the present invention are only schematically shown in the accompanying drawings by way of example, wherein: Figure 1 Schematic diagram of an embodiment of the tape paper for speaker coils of the present invention; Figure 2 This is a schematic diagram of an embodiment before the speaker coil is adhered with tape paper; Figure 3 is Figure 2 A schematic diagram of an embodiment of the present invention wherein the tape paper is adhered to the speaker coil; Figure 4 and Figure 5 The diagram is a schematic diagram of an embodiment of using tape paper with different hole spacings to wind a speaker coil.

[0016] In the figure: 1, tape paper; 10, tape paper body; 101, air outlet; 2, speaker coil; 21, skeleton; 22, coil; d1, hole spacing; d2, hole spacing. DETAILED DESCRIPTION

[0017] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention.

[0019] The tape paper for a voice coil of the present invention comprises a main body provided with a plurality of air outlets. Figure 1 3 is a schematic diagram of a tape paper for a voice coil according to the present invention. The tape paper 1 includes a main body 10 on which a plurality of air outlets 101 are provided.

[0020] Preferably, the plurality of air outlets 101 are through holes. In some embodiments, the air outlets 101 may be circular through holes, but in other embodiments, the through holes may be elliptical, rectangular, square, or triangular, or any combination of these shapes.

[0021] Figure 2 FIG. 2 is a schematic diagram of a voice coil before the tape paper of the present invention is attached. The voice coil 2 includes a bobbin 21 and a coil 22 . Figure 3 Shown in Figure 2 Schematic diagram of an embodiment of the present invention wherein the voice coil tape 1 is adhered to the voice coil 2. Figure 3 In the embodiment, the tape 1 is wound around and adhered to the skeleton 21 of the voice coil 2.

[0022] Since the tape 1 is provided with a plurality of air outlets, as shown in the embodiment of FIG3 , even if the tape 1 is twisted or wrinkled when adhesive is applied, the air in these areas can be quickly discharged through the air outlets 101 on the tape 1, thereby preventing air accumulation and poor adhesion. This will improve the production efficiency of the speaker coil and stabilize the performance of the speaker.

[0023] Although Figure 3 It is not shown in the figure, but the tape 1 can also fix some wires of the speaker coil to the frame 21. In some embodiments, the tape 1 can also fix other components of the speaker to the frame 21, thereby making the structure of the speaker coil simpler and more beautiful, and reducing the overall weight.

[0024] The tape paper 1 of the present invention can not only be used to compress and fix the wire, but also play the role of reinforcing and connecting other parts of the speaker, preventing the speaker coil from being displaced or falling off in the speaker.

[0025] In these cases, due to the different shapes of the wires or speaker components, wrinkles or twists are more likely to appear on the tape during bonding, and the accumulation of air in these areas will further cause poor bonding. However, by using the tape with multiple air outlets of the present invention, excellent bonding effects can be achieved even if the shapes of the wires or speaker components are different.

[0026] The tape paper of the present invention can be made of a material with a certain degree of air permeability. Preferably, in some embodiments, the tape paper can be made of a material with a certain degree of air permeability, such as Xuanhua (SENKA) paper or Nomi paper. In other embodiments, the tape paper of the present invention can also be made of metal, such as aluminum. Furthermore, in some embodiments, the tape paper of the present invention can also be made of a material that is not air permeable, such as polyimide film or fiberglass.

[0027] When using non-breathable materials such as polyimide film or glass fiber (e.g., impregnated glass fiber), air accumulation on the tape during adhesion becomes more noticeable. However, by providing air vents on the tape, air accumulation can be prevented, further improving adhesion performance.

[0028] In some preferred embodiments of the present invention, multiple air outlets 101 are arranged at equal intervals on the main body of the tape. This uniform arrangement results in more uniform bonding and improved adhesion. Different hole spacing can also affect the adhesive strength of the tape.

[0029] Figure 4 and Figure 5 The embodiment of using paper wound coils with different hole spacing is shown in a schematic manner. Figure 4 The distance d1 between the middle air outlet is less than Figure 5 The distance d2 between the middle air outlet. Figure 4 and Figure 5 The same material tape paper is used, and the material of the tape paper can be selected from any one of the above-mentioned metals, polyimide films, glass fibers, Nomi paper, Xuanhua paper or composite materials of these materials.

[0030] In the following, the air outlet portion 101 is a circular through hole with a hole diameter of 0.6 mm as an example, and the bonding effect experiment is conducted by changing the hole spacing on the tape paper.

[0031] In a set of comparative experiments, the hole spacing was set to 6 mm, 4.5 mm, 3 mm, and 1.5 mm. The experimental results showed that compared with other spacings, when the hole spacing was 3 mm, there was no air accumulation and the bonding effect was better.

[0032] In another set of comparative experiments, experiments were conducted on different hole spacings within the range of 2.5mm to 3.5mm. For example, the hole spacing was set to 2.5mm, 3mm and 3.5mm respectively. The results showed that air accumulation would not occur in these three spacings, and the paper bonding effect was better.

[0033] Further, after repeated experiments, it was found that when the hole spacing was within the range of 2.5mm to 3.5mm, the tape and paper did not have air accumulation, and the tape and paper bonding strength was better. In a preferred embodiment, when the hole spacing was 3mm, the tape and paper bonding effect was better.

[0034] Furthermore, during speaker assembly, the spider is bonded to the speaker coil via tape. However, if the tape surface is hard, the adhesive will not penetrate well.

[0035] For example, when using Xuanhua paper or Nomi paper as the tape paper, the fibers are very dense and the adhesive cannot penetrate properly, resulting in poor bonding of the elastic wave and reduced speaker performance.

[0036] By using the tape paper provided with a plurality of air outlets of the present invention, the adhesive can penetrate through the air outlets, thereby improving the bonding strength and stabilizing the performance of the speaker.

[0037] Similarly, when using metal such as aluminum, polyimide film or glass fiber as the tape paper, multiple air outlets can be provided to improve the adhesion between the tape paper and the damper, thereby making the speaker performance more stable.

[0038] Preferably, holes can be punched evenly at equal intervals throughout the tape paper, which facilitates processing of the tape paper and allows it to be used for various types of coils in the same manner.

[0039] In addition, the tape paper of the present invention is very durable and not easily damaged during the coil processing process, and compared with conventional tape paper, the tape paper of the present invention has a better bonding effect.

[0040] The speaker coil tape of the present invention can be applied to a wide variety of coils in the field, not just the coil examples shown in the accompanying drawings. Furthermore, because the tape, equipped with multiple air outlets, offers excellent durability during coil processing, it can be produced using conventional equipment.

Claims

1. A tape for an audio coil, characterized in that: The paper strip comprises a main body, and a plurality of air outlets are provided on the main body.

2. The tape paper for speaker coils according to claim 1, wherein: The air outlet is a through hole.

3. The tape paper for speaker coils according to claim 2, wherein: The through hole has any one of a circular, oval, rectangular, square and triangular shape.

4. The tape paper for an audio coil according to claim 2, wherein: The through holes are arranged at equal intervals.

5. The tape paper for speaker coils according to claim 4, wherein: The spacing between the through holes is 2.5 mm to 3.5 mm.

6. The tape paper for speaker coils according to claim 5, wherein: The spacing between the through holes is 3 mm.

7. The tape paper for an acoustic coil according to claim 6, wherein: The diameter of the plurality of through holes is 0.6 mm.

8. The tape paper for speaker coils according to claim 1, wherein The material of the tape paper is selected from any one of metal, polyimide film, glass fiber, Nomi paper, Xuanhua paper or a composite material of these materials.

9. The tape paper for an acoustic coil according to claim 8, wherein: The metal is aluminum.

10. A speaker coil, characterized in that: The speaker coil tape according to any one of claims 1 to 9 is included.

11. The speaker coil according to claim 10, wherein A bobbin is further included, and the speaker coil tape is configured to be adhered to the bobbin by an adhesive so that air between the bobbin and the tape is discharged through an air outlet on the tape.

12. A loudspeaker, characterized in that: The speaker coil comprises the speaker coil according to any one of claims 10 to 11.

13. The loudspeaker according to claim 12, wherein: The device further includes a damper bonded to the voice coil tape using an adhesive.

14. The loudspeaker according to claim 13, wherein The voice coil tape is configured such that adhesive penetrates around an air outlet portion of the tape to increase adhesion between the tape and the damper.

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