Loudspeaker

Abstract

The utility model relates to the field of loudspeakers, and provides a loudspeaker which comprises a support, a voice coil, a washer, a magnet, an FPC and a vibrating diaphragm. A through hole is formed in the middle of the support, and a U-shaped cup covering one end of the through hole and a top cover covering the other end of the through hole are arranged on the support. The magnet is arranged in the middle of the U-shaped cup, the washer is arranged on the top surface of the magnet, one end of the voice coil is arranged on the vibrating diaphragm, and the voice coil is sleeved outside the magnet in a clearance manner; one ends of the FPCs are arranged on the covering face between the support and the U cup, the other ends of the FPCs are arranged at the other end of the voice coil, and the two FPCs are symmetrically arranged. The FPC structure adopts a two-part structural design, the FPCs are arranged between the voice coil and the bracket for connection, and the two FPCs are symmetrically arranged, so that closed-loop design is not needed, waste can be avoided, and the production cost can be reduced. Meanwhile, the effect of outputting the audio signal can be achieved, and the performance of the loudspeaker is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of speakers, and particularly relates to a speaker. Background Art

[0002] A speaker is a transducer device that converts electrical signals into sound signals. The performance of the speaker has a great impact on the sound quality. The speaker is the weakest component in audio equipment, but it is also the most important component for the sound effect. The audio electrical energy makes its paper cone or diaphragm vibrate through electromagnetic, piezoelectric or electrostatic effects and resonate (sympathetic vibration) with the surrounding air to emit sound.

[0003] In traditional super-linear speakers, the FPC structure is printed in a whole circle, and the subsequent redundant parts need to be removed, which will generate a lot of waste materials, resulting in an increase in cost; moreover, for the production of products, the larger-sized FPC materials also increase the usage cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide a speaker, aiming to improve the problem of the relatively high production cost of existing super-linear speakers.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions: A speaker, comprising a bracket, a voice coil, a washer, a magnet, an FPC and a diaphragm;

[0006] A through hole is arranged in the middle of the bracket, and a U cup covering one end of the through hole and a top cover covering the other end of the through hole are arranged on the bracket;

[0007] The magnet is arranged in the middle of the U cup, the washer is arranged on the top surface of the magnet, one end of the voice coil is arranged on the diaphragm, and the voice coil is sleeved outside the magnet with a clearance;

[0008] One end of the FPC is arranged on the covering surface between the bracket and the U cup, the other end of the FPC is arranged on the other end of the voice coil, and two FPCs are symmetrically arranged.

[0009] Preferably, a positioning groove is arranged at one end of the bracket, and a communicating port that is communicated is arranged on the inner side wall between the positioning groove and the through hole.

[0010] Preferably, the outer side wall of the positioning groove is communicated with the outside, and a solder pad fitting position is arranged at the end of the bottom surface of the positioning groove.

[0011] Preferably, the FPC includes a first fixing portion disposed in the positioning groove, a second fixing portion disposed on the voice coil, and an elastic portion connecting the first fixing portion and the second fixing portion, and electrode contacts are provided on the first fixing portion and the second fixing portion.

[0012] Preferably, it further includes a reinforcing film, and the reinforcing film is disposed on the end face of the FPC.

[0013] Preferably, an avoidance notch for avoiding the electrode contact on the first fixing portion is provided on the U cup.

[0014] Preferably, a plurality of U cup flanges surrounding the middle region are provided on the U cup, and the plurality of U cup flanges are intermittently provided to form a protection groove.

[0015] Preferably, a cutting groove communicating with the bottom of the positioning groove is provided on the end face of the bracket.

[0016] After adopting the above technical solution, compared with the background technology, the present utility model has the following advantages:

[0017] 1. The FPC structure is designed with two parts. The FPC is disposed between the voice coil and the bracket for connection, and the two FPCs are symmetrically arranged. In this way, there is no need for a closed-loop design, which can avoid waste and achieve the purpose of reducing production costs. At the same time, the effect of outputting audio signals can be achieved, ensuring the performance of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the speaker of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the back of the speaker of the present utility model;

[0020] Figure 3 is a cross-sectional view of the speaker of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the bracket of the speaker of the present utility model;

[0022] Figure 5 is a schematic structural diagram of the U cup of the speaker of the present utility model;

[0023] Figure 6 is a schematic structural diagram of the FPC of the speaker of the present utility model.

[0024] Explanation of the reference numerals: (1023, 1041 are not modified from the perspective of the scope of protection)

[0025] 10. Bracket; 101. Through hole; 102. U-cup; 103. Top cover; 104. Positioning groove;

[0026] 1021. Avoidance notch; 1022. U-cup flange; 1023. Cutting groove;

[0027] 1041. Communication port; 1042. Pad fitting position;

[0028] 11. Voice coil; 12. Washer; 13. Magnet; 14. FPC;

[0029] 141. First fixing part; 142. Second fixing part; 143. Elastic part; 144. Electrode contact piece;

[0030] 15. Diaphragm;

[0031] 20. Reinforcing film. Detailed implementation manners

[0032] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] In addition, it should be noted that: the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element of the present utility model must have a specific orientation, so it cannot be understood as a limitation to the present utility model.

[0034] When an element is referred to as being "fixed to" or "disposed on" or "provided on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] Embodiment

[0037] Please refer to Figure 1 、Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, this embodiment provides a speaker, including a bracket 10, a voice coil 11, a washer 12, a magnet 13, an FPC 14 and a diaphragm 15; a through hole 101 is set in the middle of the bracket 10, and a U cup 102 covering one end of the through hole 101 and a top cover 103 covering the other end of the through hole 101 are set on the bracket 10; the magnet 13 is set in the middle of the U cup 102, the washer 12 is set on the top surface of the magnet 13, one end of the voice coil 11 is set on the diaphragm 15, and the voice coil 11 is sleeved outside the magnet 13; one end of the FPC 14 is set on the covering surface between the bracket 10 and the U cup 102, and the other end of the FPC 14 is set on the other end of the voice coil 11, and two FPCs 14 are symmetrically arranged. FPC 14 is a flexible circuit board made of polyimide or polyester film as a substrate, a highly reliable and excellently flexible printed circuit board.

[0038] Specifically, the FPC 14 is split into two parts for design, which can reduce the design of the edge or frame structure, remove redundant parts, reduce material consumption, and improve the purpose of utilization. When in use, the voice coil 11 cuts the magnetic field generated by the magnet 13 by moving up and down, and then drives the diaphragm 15 to transmit the signal through the FPC 14; that is, the voice coil 11 receives the digital signal, cooperates with the magnetic circuit system composed of the magnet 13 and the washer 12 to generate vibration, and the FPC 14 sends the corresponding digital signal to the voice coil 11. In this way, the effect of synchronous vibration of the diaphragm 15, voice coil 11 and FPC 14 is formed, which can avoid the fatigue breakage of the lead wire of the traditional voice coil 11 and improve the service life.

[0039] like Figure 4 As shown, in this embodiment, a positioning groove 104 is provided at one end of the bracket 10, and a conductive communication port 1041 is provided on the inner side wall between the positioning groove 104 and the through hole 101. In this way, the middle part of the FPC 14 is engaged with the communication port 1041, so that the FPC 14 can be bent and moved up and down to match the movement of the voice coil 11, thereby improving practicality.

[0040] like Figure 3 and Figure 4As shown, in this embodiment, the outer wall of the positioning groove 104 is in communication with the outside, and a pad fitting position 1042 is provided at the end of the bottom surface of the positioning groove 104. The FPC 14 can be adhered through the pad fitting position 1042 to avoid the situation of glue overflow; or, welding can be performed through the pad fitting position 1042 to avoid forming bumps on the positioning groove 104, so as to perform flat fitting on the FPC 14 for subsequent assembly. In this way, the position of the positioning groove 104 can be exposed and will not be blocked by the side wall, so as to be electrically connected to the outside, which is convenient for the connection design with other devices and has good practicability.

[0041] Furthermore, as Figure 6 shown, in this embodiment, the FPC 14 includes a first fixing portion 141 disposed in the positioning groove 104, a second fixing portion 142 disposed on the voice coil 11, and an elastic portion 143 connecting the first fixing portion 141 and the second fixing portion 142. Electrode contacts 144 are provided on the first fixing portion 141 and the second fixing portion 142.

[0042] Specifically, the first fixing portion 141 can be a structure similar to a long strip, which is approximately equal to the width of the bracket 10. In this way, a good connection and fixing effect can be provided, and electrode contacts 144 can be provided at both ends to form an avoidance at the corner positions of the bracket 10, which is convenient for electrical connection. The second fixing portion 142 is connected to the end face of the voice coil 11, and the electrical connection effect is ensured through the electrode contacts 144 (the connection method can be welding or bonding). The elastic portion 143 can be a serpentine bent structure, so as to provide good elasticity to move along with the voice coil 11.

[0043] Furthermore, as Figure 2 and Figure 3 shown, in this embodiment, a reinforcing film 20 is further included. The reinforcing film 20 is disposed on the end face of the FPC 14. The reinforcing film 20 can be a release film, which is attached to the surface of the FPC 14, and can improve the structural strength of the FPC 14. In this way, it is convenient for assembly during production, that is, it avoids the problem of difficult assembly due to the flexible characteristics of the FPC 14, and the release film can be removed after assembly or before use, which improves the production efficiency and practicability.

[0044] As Figure 6 shown, in this embodiment, an avoidance notch 1021 for avoiding the electrode contacts 144 on the first fixing portion 141 is provided on the U cup 102. In this way, when viewed directly from the end face of the U cup 102, the first fixing portion 141 and the electrode contacts 144 can be directly observed, which can form the effect of electrical connection by plugging the speaker, or facilitate the purpose of operating and connecting the power line, and improve the operation convenience.

[0045] As Figure 2 and Figure 5As shown, in this embodiment, the U-cup 102 is provided with a plurality of U-cup flanges 1022 surrounding the middle area, and the plurality of U-cup flanges 1022 are intermittently arranged to form a protective groove. The design of the U-cup flanges 1022 can form a surrounding effect on the voice coil 11, the washer 12 and the magnet 13 structure to provide a protective purpose; at the same time, a through opening can be formed on the U-cup 102 to facilitate the flow of air when the diaphragm 15 vibrates, thereby reducing air resistance and improving practicality.

[0046] like Figure 1 and Figure 4 As shown, in this embodiment, the end surface of the bracket 10 is provided with a cutting groove 1023 on the bottom of the groove connected to the positioning groove 104. After the FPC 14 is installed, there is a redundant part on the structure of the FPC 14, so that it can be positioned and assembled by machinery or manual, so that it can be cut off by a cutter later. Therefore, the design of the cutting groove 1023 can provide the function of alignment and cutting, forming a neat and aligned cutting effect, and improving the efficiency and quality of production.

[0047] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A loudspeaker, characterized in that: Including bracket, voice coil, washer, magnet, FPC and diaphragm; A through hole is provided in the middle of the bracket, and a U cup covering one end of the through hole and a top cover covering the other end of the through hole are provided on the bracket; The magnet is arranged in the middle of the U cup, the washer is arranged on the top surface of the magnet, one end of the voice coil is arranged on the diaphragm, and the voice coil gap is arranged outside the magnet; One end of the FPC is arranged on the covering surface between the bracket and the U cup, the other end of the FPC is arranged on the other end of the voice coil, and two FPCs are symmetrically arranged.

2. The loudspeaker according to claim 1, characterized in that: A positioning groove is arranged at one end of the bracket, and a conducting communication port is arranged on the inner side wall between the positioning groove and the through hole.

3. The loudspeaker according to claim 2, characterized in that: The outer side wall of the positioning groove is connected to the outside, and a welding pad fitting position is arranged on the end of the bottom surface of the positioning groove.

4. The loudspeaker according to claim 2, characterized in that: The FPC includes a first fixing portion arranged in the positioning groove, a second fixing portion arranged on the voice coil, and an elastic portion connecting the first fixing portion and the second fixing portion, and the first fixing portion and the second fixing portion are provided with electrode contact sheets.

5. The loudspeaker according to claim 1 or 4, characterized in that: It also includes a reinforcement film, which is arranged on the end surface of the FPC.

6. The loudspeaker according to claim 4, characterized in that: The U cup is provided with an escape notch for escaping the electrode contact piece on the first fixing part.

7. The loudspeaker according to claim 1, characterized in that: The U cup is provided with a plurality of U cup flanges surrounding the middle area, and the plurality of U cup flanges are intermittently arranged to form a protective groove.

8. The loudspeaker according to claim 3, characterized in that: The bracket end surface is provided with a cutting groove connected to the groove bottom of the positioning groove.

Images