Loudspeaker framework voice coil

Abstract

The utility model relates to the technical field of framework voice coils, and discloses a loudspeaker framework voice coil, which comprises a voice coil framework main body, a coil is sleeved on the voice coil framework main body, a plurality of positioning bumps which are arranged at intervals along the circumferential direction are convexly arranged on the outer side of the voice coil framework main body, and the bottom of the coil is abutted against the top of the positioning bumps. Cooling fins are arranged in the voice coil framework body, through the arranged transmission sliding blocks, movable clamping blocks, coils, positioning protruding blocks and other structures, when the coils are detached from the voice coil framework body, the two transmission sliding blocks can be driven to get close to each other by rotating a transmission gear, and then movable blocks on the two transmission sliding blocks retract into a transmission cavity. At the moment, the coil loses top limiting, so that the coil can be taken down from the voice coil framework body, on the contrary, the coil can be installed, the disassembling and assembling difficulty of the coil is reduced to a great extent, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of skeleton voice coil technology, specifically to loudspeaker skeleton voice coils. Background Technology

[0002] A voice coil, simply defined as a coil carrying audio current, is a crucial component of the vibrating system of an electrodynamic loudspeaker, often considered its heart. The performance of the voice coil affects the loudspeaker's sound pressure level (SPL), impedance curve, distortion, transient response, loudspeaker parameters, and sound quality, particularly its power handling capacity and lifespan. Just as a fatal factor in heart disease, loudspeaker damage often begins with the voice coil. Current methods, where voice coils are glued to a frame, hinder installation and replacement when the voice coil fails, increasing worker workload and reducing efficiency. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a speaker frame voice coil, thus solving the aforementioned technical problems.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a loudspeaker frame voice coil, including a voice coil frame body, a coil being sleeved on the voice coil frame body, a plurality of positioning protrusions spaced apart along the circumferential direction protruding from the outer side of the voice coil frame body, the bottom of the coil abutting against the top of the positioning protrusions, a heat sink being provided inside the voice coil frame body, a transmission cavity extending into the voice coil frame body being opened in the heat sink, two transmission sliders being slidably installed in the transmission cavity, through holes communicating with the outside being opened on both inner walls of the transmission cavity, movable locking blocks adapted to the size of the through holes being connected to the two transmission sliders, a transmission gear being rotatably installed in the transmission cavity, and transmission teeth adapted to the transmission gear being opened on the two transmission sliders.

[0007] Preferably, the bottom surfaces of both movable blocks abut against the top of the coil.

[0008] Preferably, the bottom of the transmission gear is provided with a limiting rotating block, and the bottom inner wall of the transmission cavity is provided with a rotating hole that matches the limiting rotating block.

[0009] Preferably, the transmission cavity is provided with two mutually symmetrical fixing blocks, each fixing block having a protruding guide rod, and both transmission sliders having guide holes adapted to the guide rods.

[0010] Preferably, a return spring is sleeved on the guide rod, with one end of the return spring abutting against the fixed block and the other end of the return spring abutting against the transmission slider.

[0011] Preferably, an adjusting block is rotatably mounted on the top of the heat sink, the adjusting block extends into the transmission cavity and is connected to the adjusting block, and an internal hexagonal groove is formed on the top of the adjusting block.

[0012] Preferably, the top of the heat sink is provided with a plurality of heat dissipation blocks, which are arranged at intervals along the circumferential direction on the heat sink.

[0013] Compared with the prior art, this utility model provides a speaker frame voice coil, which has the following beneficial effects: This utility model, through the provision of a transmission slider, movable block, coil and positioning protrusion, etc., can, when removing the coil from the voice coil frame body, drive the two transmission sliders to move closer to each other by rotating the transmission gear, thereby causing the movable block on the two transmission sliders to retract into the transmission cavity. At this time, the coil loses the top limit, so the coil can be removed from the voice coil frame body. Conversely, the coil can be installed, which greatly reduces the difficulty of coil disassembly and assembly and improves maintenance efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the transmission gear and guide rod of this utility model;

[0016] Figure 3 This is a bottom view sectional structural diagram of the transmission gear, transmission slider, and guide rod of this utility model;

[0017] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] The components include: 1. Voice coil frame body; 2. Coil; 3. Positioning protrusion; 4. Movable locking block; 5. Heat sink; 6. Heat sink block; 7. Fixing block; 8. Transmission cavity; 9. Guide rod; 10. Return spring; 11. Guide hole; 12. Transmission slider; 13. Transmission gear; 14. Transmission gear; 15. Adjustment block; 16. Internal hexagonal slot; 17. Limiting rotation block. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-4 The speaker frame voice coil includes a voice coil frame body 1, on which a coil 2 is fitted. Multiple positioning protrusions 3 are spaced apart along the circumference on the outer side of the voice coil frame body 1. The bottom of the coil 2 abuts against the top of the positioning protrusions 3. A heat sink 5 is provided inside the voice coil frame body 1. A transmission cavity 8 extending into the voice coil frame body 1 is opened within the heat sink 5. Two transmission sliders 12 are slidably installed inside the transmission cavity 8. Through holes communicating with the outside are opened on both inner walls of the transmission cavity 8. Movable locking blocks 4, matching the size of the through holes, are connected to both transmission sliders 12. A transmission gear 14 is rotatably installed inside the transmission cavity 8. Transmission teeth 13, matching the transmission gear 14, are opened on both transmission sliders 12.

[0023] By incorporating a structure including a transmission slider 12, a movable locking block 4, a coil 2, and a positioning protrusion 3, when removing the coil 2 from the voice coil frame body 1, the transmission gear 14 can be rotated to drive the two transmission sliders 12 closer together, thereby causing the movable blocks on the two transmission sliders 12 to retract into the transmission cavity 8. At this time, the coil 2 loses its top limit, thus allowing the coil 2 to be removed from the voice coil frame body 1. Conversely, the coil 2 can be installed, greatly reducing the difficulty of disassembling and assembling the coil 2 and improving maintenance efficiency.

[0024] Specifically, in this embodiment, the bottom surfaces of the two movable blocks 4 abut against the top of the coil 2, which can effectively restrict the position of the coil 2.

[0025] Specifically, in this embodiment, a limiting rotating block 17 is protruding from the bottom of the transmission gear 14, and a rotating hole adapted to the limiting rotating block 17 is opened on the bottom inner wall of the transmission cavity 8.

[0026] By setting the limiting rotation block 17, the position of the transmission gear 14 can be effectively restricted, and the rotation process of the transmission gear 14 can be made smoother.

[0027] Specifically, in this embodiment, two symmetrical fixing blocks 7 are provided in the transmission cavity 8. A guide rod 9 protrudes from the fixing block 7. A guide hole 11 adapted to the guide rod 9 is provided on each of the two transmission sliders 12. A return spring 10 is sleeved on the guide rod 9. One end of the return spring 10 abuts against the fixing block 7, and the other end of the return spring 10 abuts against the transmission slider 12.

[0028] By setting the guide rod 9 and the return spring 10, the movement direction of the transmission slider 12 can be guided, and the transmission slider 12 can be automatically reset. Under normal conditions, the two transmission sliders 12 can always be kept away from each other, thereby achieving stable limitation of the coil 2.

[0029] Specifically, in this embodiment, an adjusting block 15 is rotatably mounted on the top of the heat sink 5. The adjusting block 15 extends into the transmission cavity 8 and is connected to the adjusting block 15. The top of the adjusting block 15 is provided with an internal hexagonal slot 16, which can facilitate the adjustment block 15 to rotate by inserting a hexagonal plug into the internal hexagonal slot 16, thereby driving the transmission gear 14 to rotate.

[0030] Specifically, in this embodiment, a plurality of heat dissipation blocks 6 are protruding from the top of the heat sink 5, and the plurality of heat dissipation blocks 6 are arranged at intervals along the circumferential direction on the heat sink 5.

[0031] The heat dissipation area of ​​the voice coil frame body 1 can be increased by setting heat dissipation block 6 and heat dissipation fin 5, thereby improving the heat dissipation effect.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A loudspeaker bobbin voice coil comprising a voice coil bobbin body, characterised in that: The coil is sleeved on the voice coil skeleton body, the outer side of the voice coil skeleton body is provided with a plurality of positioning protrusions arranged in the circumferential direction, the bottom of the coil abuts against the top of the positioning protrusions, the voice coil skeleton body is provided with a heat sink, the heat sink is provided with a transmission cavity extending into the voice coil skeleton body, two transmission sliders are slidably installed in the transmission cavity, the inner walls of the two sides of the transmission cavity are both provided with a through hole in communication with the outside, the two transmission sliders are both connected with a movable clamping block matched with the through hole in size, a transmission gear is rotatably installed in the transmission cavity, and the two transmission sliders are both provided with transmission teeth matched with the transmission gear.

2. The speaker basket voice coil of claim 1, wherein: The bottom surfaces of the two movable clamping blocks abut against the top of the coil.

3. The loudspeaker basket voice coil of claim 1, wherein: The bottom of the transmission gear is provided with a limiting rotation block, and the bottom inner wall of the transmission cavity is provided with a rotation hole matched with the limiting rotation block.

4. The loudspeaker basket voice coil of claim 1, wherein: The transmission cavity is provided with two symmetrical fixed blocks, the fixed blocks are provided with guide rods, and the two transmission sliders are both provided with guide holes matched with the guide rods.

5. The loudspeaker basket voice coil of claim 4, wherein: The guide rods are sleeved with return springs, one end of the return springs abuts against the fixed blocks, and the other end of the return springs abuts against the transmission sliders.

6. The speaker basket voice coil of claim 1, wherein: The top of the heat sink is rotatably provided with an adjusting block, the adjusting block extends into the transmission cavity and is connected with the adjusting block, and the top of the adjusting block is provided with an internal hexagonal groove.

7. The loudspeaker basket voice coil of claim 1, wherein: The top of the heat sink is provided with a plurality of heat dissipation blocks, and the plurality of heat dissipation blocks are arranged on the heat sink in the circumferential direction.

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