Loudspeaker with nylon silk threads connected with damper

Abstract

The utility model discloses a loudspeaker with a nylon silk thread connected with a damper. The loudspeaker comprises a voice coil, the damper, the nylon silk thread and a terminal board. The brocade silk thread is connected between the voice coil and the terminal board, the brocade silk thread is integrally located above the damper, and one connection point on the brocade silk thread is fixedly connected with the damper. The connecting point divides the brocade silk thread area into a first line segment located between the voice coil and the connecting point and a second line segment located between the connecting point and the terminal board, and the first line segment and the second line segment are arc-shaped. According to the loudspeaker, the connecting points on the brocade silk threads are fixedly connected with the damper, the brocade silk threads are divided into the first line segments and the second line segments, the length of the suspended brocade silk threads is reduced, the problem that the brocade silk threads collide with a paper cone or the damper can be effectively solved, and the effects of improving the structure of the loudspeaker and improving the tone quality of the loudspeaker are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of loudspeakers, and in particular to a loudspeaker with a spring wave connected by a silk thread. Background Art

[0002] A speaker is a transducer device that converts electrical signals into sound signals. The speaker uses electromagnetic, piezoelectric or electrostatic effects to make its cone vibrate and resonate with the surrounding air to produce sound. The performance of the speaker has a great impact on the sound quality. A speaker with good sound quality will make people feel relaxed and happy when it produces sound. Speakers can be installed in home TVs, multimedia home audio, outdoor audio, cars, KTV venues, square broadcasts, computers, etc., as sound units.

[0003] Dynamic speakers are a common type of speaker, which mainly include voice coil, paper cone, spring and magnetic system. When the changing current passes through the voice coil wire on the voice coil, a changing magnetic field will be generated. The changing magnetic field interacts with the magnetic system to generate a driving force, causing the paper cone connected to the voice coil to vibrate and make sound. The voice coil is connected to the spring, and the spring is used to ensure that the voice coil can only move in the vertical direction. Usually, the voice coil wire on the voice coil is connected to the terminal board of the speaker through a silk wire, and the silk wire is used as the path for transmitting the current signal.

[0004] Currently, there are usually two ways to connect speakers in the industry (i.e., the way to connect the silk wire).

[0005] The first is that the voice coil comes with a silk thread, which is directly welded to the terminal board. In this method: due to structural limitations, the space between the speaker's spring wave and the paper cone is designed to be small, and when the voice coil outlet is far away from the terminal board, the silk thread has a long travel. Under high-power vibration conditions, the silk thread is very likely to hit the paper cone or spring wave, resulting in a headache-inducing wire-bonding problem, which seriously affects the sound quality of the speaker.

[0006] The second is the front-wire welding process, in which a hole is opened on the paper cone, the voice coil wire and the Jinsi wire are welded at the hole position of the paper cone, and then the Jinsi wire is welded to the terminal board. In this method: the travel of the Jinsi wire is reduced, and the wire bonding problem is improved, but the manufacturing cost is greatly increased compared with the former due to the addition of multiple processes, and the waterproof performance is reduced due to the hole in the paper cone. At present, more and more customers need to achieve IP67 and IP68 waterproof levels, and this method is difficult to achieve the aforementioned waterproof levels. In addition, this method requires eight-shaped glue to be applied on the surface of the paper cone. At the same time, this process is usually manual glue injection, which is more dependent on the operation method. If the glue is not applied carefully, it will affect the overall appearance of the product. Utility Model Content

[0007] The main technical problem to be solved by this application is to provide a speaker with a brocade wire connecting the spider, which is used to improve the sound quality of the speaker.

[0008] A speaker with a brocade wire connecting the spider proposed by this application includes: a voice coil, a spider, a brocade wire, and a terminal board; the brocade wire is connected between the voice coil and the terminal board, and the whole brocade wire is located above the spider, and a connection point on the brocade wire is fixedly connected to the spider. The connection point divides the brocade wire into a first line segment between the voice coil and the connection point and a second line segment between the connection point and the terminal board. Both the first line segment and the second line segment are arc-shaped.

[0009] In some optional embodiments, the connection point on the brocade wire is fixedly connected to the spider by sewing.

[0010] In some optional embodiments, the spider is corrugated and includes a plurality of vibration patterns connected in sequence from the inside to the outside; the connection point on the brocade wire is fixedly connected to the vertex of one of the vibration patterns.

[0011] In some optional embodiments, the first distance from the vibration pattern fixedly connected to the connection point to the voice coil is greater than the second distance to the outer edge of the spider.

[0012] In some optional embodiments, the ratio of the first distance to the second distance is between 1.2 and 1.8.

[0013] In some optional embodiments, the connection point is the lowest point of the brocade wire, and both the first line segment and the second line segment are convex upward arcs.

[0014] In some optional embodiments, the highest points of the first line segment and the second line segment are substantially at the same height.

[0015] In some optional embodiments, it further includes a diaphragm; the vertical distance from the highest point of the first line segment to the diaphragm is substantially equal to the vertical distance to the spider.

[0016] In some optional embodiments, the voice coil includes a voice coil soldering point for connecting the brocade wire, and the voice coil soldering point is located between the diaphragm and the spider in the vertical direction.

[0017] In some optional embodiments, there is a gap between the voice coil soldering point and the spider, and the highest point of the first line segment is higher than the voice coil soldering point.

[0018] It can be seen from the above technical solutions that the embodiments of this application have the following advantages:

[0019] Compared with the first method of the prior art, in the present application, the connection point on the nylon thread is fixedly connected to the diaphragm, and the nylon thread is divided into a first line segment and a second line segment, reducing the length of the suspended nylon thread and decreasing the vibration amplitude of the nylon thread between the diaphragm and the paper cone. This can avoid the "skipping rope" phenomenon caused by the excessive length and large vibration amplitude of the nylon thread, thus effectively solving the problem of the nylon thread hitting the paper cone or the diaphragm, achieving the effect of improving the speaker structure and enhancing the speaker sound quality. In addition, during the speaker R & D process, there is no need to worry too much about the problem of the nylon thread wiring due to the space structure limit, reducing the design limitations. The present application scheme can be adopted for speakers of different sizes. Exemplarily, it can be adopted for speakers as small as 1.5 inches and 2 inches in diameter and as large as over 10 inches in diameter, with stronger versatility. Moreover, since the problem of nylon thread wiring (i.e., the nylon thread hitting the paper cone or the diaphragm) is solved, the power can be further increased on the basis of the existing product design to meet the needs of different customers.

[0020] Compared with the second method of the prior art, the present application does not need to open holes in the paper cone, which can avoid the decline of the speaker waterproof performance caused by the holes, ensuring that the speaker can achieve the waterproof grades of IP67 and IP68. At the same time, there is no need to apply glue on the paper cone, without affecting the aesthetic appearance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments and the prior art will be briefly introduced below.

[0022] Figure 1 It is a partial longitudinal sectional structural schematic diagram of a speaker with a nylon thread connecting the diaphragm in the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0024] In the description and claims of this application, and in the above-mentioned drawings, the terms "first", "second", "third", etc. are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products, or devices.

[0025] Specific embodiments will be described in detail below.

[0026] Reference Figure 1 , an embodiment of this application provides a loudspeaker with a brocade wire connecting a diaphragm (hereinafter referred to as a loudspeaker).

[0027] As Figure 1 shown, the loudspeaker of the embodiment of this application may include a vibration system, a magnetic system, and a bracket 15. The bracket is used to carry the vibration system and the magnetic system. The vibration system may include: a voice coil 10, a diaphragm 11, a brocade wire 12, a terminal plate 13, and a paper cone 14. The brocade wire 12 is connected between the voice coil 10 and the terminal plate 13, and the entire brocade wire 12 is located above the diaphragm 11. A connection point 121 on the brocade wire 12 is fixedly connected to the diaphragm 11. The connection point 121 divides the brocade wire 12 into a first line segment 122 located between the voice coil 10 and the connection point 121 and a second line segment 123 located between the connection point 121 and the terminal plate 13. Both the first line segment 122 and the second line segment 123 are arc-shaped.

[0028] In some alternative embodiments, the length of the first line segment 122 is greater than that of the second line segment 123.

[0029] In some alternative embodiments, the terminal plate 13 may be provided on the bracket 15.

[0030] In some alternative embodiments, the connection point 121 on the brocade wire 12 is fixedly connected to the diaphragm 11 by sewing. That is, the brocade wire 12 and the diaphragm 11 are tied together by a sewing thread.

[0031] In some alternative embodiments, the diaphragm 11 is corrugated and includes a plurality of vibration patterns 111 connected in sequence from the inside out; the connection point 121 on the brocade wire 12 is fixedly connected to the vertex of one of the vibration patterns 111.

[0032] In some alternative embodiments, the first distance L1 from the vibration pattern 111 fixedly connected to the connection point 121 to the voice coil 10 is greater than the second distance L2 to the outer edge of the diaphragm 11.

[0033] In some alternative embodiments, the ratio of the first distance L1 to the second distance L2 is between 1.2 and 1.8. Exemplarily, the ratio can be 1.5 or 1.4 or 1.6, etc.

[0034] In some alternative embodiments, the connection point 121 is the lowest point of the brocade silk thread 12, and both the first line segment 122 and the second line segment 123 are upwardly convex arcs.

[0035] In some alternative embodiments, the highest points of the first line segment 122 and the second line segment 123 are substantially at the same height.

[0036] In some alternative embodiments, the vertical distance from the highest point of the first line segment 122 to the diaphragm 14 is substantially equal to the vertical distance to the surround 11.

[0037] In some alternative embodiments, the voice coil 10 includes a voice coil solder joint 101 for connecting the brocade silk thread 12. The voice coil solder joint 101 is located between the diaphragm 14 and the surround 11 in the vertical direction. The voice coil 10 includes a voice coil bobbin and a voice coil wire wound around the voice coil bobbin. The voice coil solder joint 101 is the joint of the voice coil wire. The brocade silk thread 12 is connected to the voice coil wire through the voice coil solder joint 101 (for example, by welding).

[0038] In some alternative embodiments, there is a gap between the voice coil solder joint 101 and the surround 11, and the highest point of the first line segment 122 is higher than the voice coil solder joint 101.

[0039] In some alternative embodiments, the manufacturing process of the present application may include: after bonding the voice coil and the surround, placing the voice coil / surround assembly on a sewing device. After the brocade silk thread of the voice coil is positioned through a jig to form an arc, the brocade silk thread is sewn and connected to the surround, and the other end of the brocade silk thread is connected to a terminal board. Optionally, the terminal board may have welding holes, and the end of the brocade silk thread may pass through the welding holes and be connected to the terminal board by welding. Among them, the voice coil and the brocade silk thread may be pre-electrically connected together (before bonding the surround).

[0040] The beneficial effects obtained by the embodiments of the present application include but are not limited to:

[0041] In this application, the connection points on the nylon thread are fixedly connected (e.g., directly sewn) to the surround (e.g., the surround vibration pattern), and the nylon thread is divided into a first line segment and a second line segment, reducing the suspended length of the nylon thread (the lengths of the first line segment and the second line segment are greatly shortened relative to the total length of the nylon thread), reducing the amplitude of vibration of the nylon thread between the surround and the diaphragm, and avoiding the "skipping rope" phenomenon caused by the excessive length and vibration amplitude of the nylon thread, thus effectively solving the problem of the nylon thread hitting the diaphragm or the surround, achieving the effect of improving the speaker structure and enhancing the speaker sound quality. This application breaks through the current difficulties in wiring in the speaker industry and solves the wiring problems in the industry.

[0042] In addition, during the speaker R & D process, there is no need to worry too much about the wiring problem of the nylon thread due to the space structure limit, reducing the design limitations. The solutions of this application can be adopted for speakers of different sizes. Exemplarily, it can be adopted for speakers as small as 1.5 inches and 2 inches in diameter and as large as over 10 inches in diameter, with stronger versatility. In addition, because the wiring problem of the nylon thread (i.e., the nylon thread hitting the diaphragm or the surround) is solved, the power can be further increased on the basis of the existing product design to meet the needs of different customers.

[0043] By adopting the nylon thread process of directly sewing on the surround with a short stroke, this application has a very excellent advantage in preventing wiring when the space between the surround and the diaphragm of the speaker product is small and the required power is large. Therefore, the solution of this application is preferably applied to speaker products with a small design space and a large power, which can reduce the wiring defect rate from more than 15% currently to 0% or close to 0%, almost completely solving this defect problem, greatly reducing the rework repair and scrap costs, and greatly improving the product first-pass rate.

[0044] The speaker of this application does not need to open holes on the diaphragm. Compared with the solution of opening holes on the diaphragm, it can avoid the decline of the speaker waterproof performance caused by the diaphragm holes, ensuring that the speaker can achieve IP67 and IP68 waterproof grades. At the same time, there is no need to apply glue on the diaphragm, which does not affect the aesthetic appearance of the product.

[0045] The brocade wire of the loudspeaker of the present application is completely located above the spider, without any part passing through the spider. There are no openings on the spider, and there is only one connection point with the spider. Compared with the scheme where the brocade wire passes through the spider, it can completely avoid the influence on the symmetry of the spider caused by the opening of the spider, and the positioning effect of the speaker on the voice coil can be achieved. It can completely avoid the deterioration of the sound quality caused by the relative sliding and friction that may occur between the brocade wire passing through the spider and the spider, thereby improving the sound quality of the loudspeaker. In the existing scheme of punching holes in the spider and threading the brocade wire, after the incoming spider is punched, the brocade wire is threaded and welded to the voice coil, with a complex process and a high defective rate. The scheme of the present application can directly lead out the wire from the voice coil, that is, the brocade wire is pre-electrically connected to the voice coil. Therefore, the present application does not require welding the voice coil, punching holes, threading, and gluing for fixation, reducing the process, lowering the cost, and being suitable for operation by automated equipment. In addition, the scheme where the brocade wire passes through the spider is only suitable for large speakers, such as speakers above 10 inches. The scheme of the present application can be applied to smaller-sized speakers, such as speakers below 10 inches, and the smallest size can be 1.5 inches or below.

[0046] There may also be a scheme, that is, a connecting piece / support is provided outside the spider. After the brocade wire is led out from the voice coil and fixed to the connecting piece / support, the other end is led out and welded to the terminal board of the loudspeaker. However, this scheme cannot reduce the length / travel of the brocade wire within the range of the spider. When the loudspeaker is working and the vibration amplitude of the brocade wire is relatively large, there is still a high risk of hitting the spider or the diaphragm. In addition, the scheme of setting a connecting piece / support outside the spider also has the following defects: ① After assembly, due to the space design problem of the connecting piece / support, such as the appearance of noise, after assembling the diaphragm, the entire software system (the spider, voice coil, and brocade wire cannot be visually inspected) cannot be effectively analyzed, increasing the analysis difficulty. In most cases, defective products can only be disassembled and scrapped, increasing the cost of the speaker, and this design will invisibly increase the R & D and material costs, with too many uncontrollable factors; ② By increasing the connecting piece / support to fix the brocade wire, if there is a clearance fit (tolerance, incoming material defect) at the matching position between the connecting piece / support and the brocade wire, the brocade wire will become loose at this time. When adjusting the wire, the looseness of the brocade wire will cause the arc of the brocade wire to be inconsistent (become longer or shorter), resulting in poor wire bonding and wire pulling; if there is an interference fit, there is a risk that the brocade wire is difficult or impossible to be inserted into the wire groove of the support; ③ The scheme of setting a connecting piece / support outside the spider has a small scope of application and is not suitable for most loudspeakers.

[0047] As above, the technical solution of the present application has been described in detail through specific embodiments. In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0048] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Those of ordinary skill in the art can modify the technical solutions recorded in the above embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A speaker with a spring wave connected by a silk thread, characterized in that: include: Voice coil, spring, wire and terminal board; The brocade wire is connected between the voice coil and the terminal board, and the brocade wire is located above the elastic wave as a whole, and a connection point on the brocade wire is fixedly connected to the elastic wave, and the connection point divides the brocade wire into a first line segment located between the voice coil and the connection point and a second line segment located between the connection point and the terminal board, and the first line segment and the second line segment are both arc-shaped.

2. The speaker with silk thread connected to the spring wave according to claim 1, characterized in that: The connection point on the brocade thread is fixedly connected to the elastic wave by sewing.

3. The speaker with silk thread connected to the spring wave according to claim 1, characterized in that: The elastic wave is in a corrugated shape, and includes a plurality of vibration patterns connected in sequence from the inside to the outside; the connection point on the brocade thread is fixedly connected to the apex of one of the vibration patterns.

4. The speaker with silk thread connected to the spring wave according to claim 3, characterized in that: A first distance from the vibration pattern fixedly connected to the connection point to the voice coil is greater than a second distance from the vibration pattern to the outer edge of the elastic wave.

5. The speaker with silk thread connected to the spring wave according to claim 4, characterized in that: The ratio of the first distance to the second distance is between 1.2 and 1.

8.

6. The speaker with silk thread connected to the spring wave according to claim 1, characterized in that: The connection point is the lowest point of the brocade thread, and the first line segment and the second line segment are both convex arcs.

7. The speaker with silk thread connected to the spring wave according to claim 6, characterized in that: The highest point of the first line segment and the highest point of the second line segment are substantially at the same height.

8. The speaker with silk thread connected to the spring wave according to claim 6, characterized in that: Also includes paper cones; The vertical distance from the highest point of the first line segment to the paper cone is substantially equal to the vertical distance from the highest point of the first line segment to the spring wave.

9. The speaker with silk thread connected to the spring wave according to claim 8, characterized in that: The voice coil includes a voice coil welding point for connecting the brocade wire, and the voice coil welding point is located between the paper cone and the elastic wave in the vertical direction.

10. The speaker with silk thread connected to the spring wave according to claim 9, characterized in that: There is a gap between the voice coil welding point and the spring, and the highest point of the first line segment is higher than the voice coil welding point.

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