Low-frequency loudspeaker

Abstract

The invention discloses a low-frequency loudspeaker, and particularly relates to the technical field of loudspeakers, the low-frequency loudspeaker comprises a reinforced polypropylene shell, a connecting assembly is arranged on the reinforced polypropylene shell, the connecting assembly comprises a butt joint arranged at the top of the reinforced polypropylene shell, and a reinforced supporting lining cylinder is embedded in the top of an inner cavity of the reinforced polypropylene shell. And a loudspeaker voice coil main body is arranged in the reinforced support lining cylinder. According to the loudspeaker, the reinforcing supporting strips are arranged and used for absorbing redundant vibration, interference and resonance between different frequency bands are reduced when sound production of the loudspeaker voice coil body is optimized, the low-frequency vibrating diaphragm body pushes more air when the loudspeaker voice coil body emits low frequency, the low-frequency performance is improved, and higher low-frequency response is generated; and the shunting cavity at the bottom of the low-frequency vibrating diaphragm main body is used for shunting air while pushing more air, so that the heat dissipation performance and the power bearing capacity are improved, the conversion efficiency is improved, low-frequency extension is realized, the power is improved, and resonance is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of loudspeakers, and more particularly to a low-frequency loudspeaker. Background Art

[0002] Loudspeakers are also called "horns". They are a very commonly used electroacoustic transducer device and can be found in electronic and electrical equipment that makes sound. A low-frequency speaker is a low-frequency speaker unit in a car speaker. Generally speaking, the larger the caliber, magnet and voice coil diameter of the low-frequency speaker, the better the low-frequency (long-wave) playback performance and transient characteristics, and the higher the sensitivity.

[0003] Among them, the patent with announcement number CN216673286U discloses a low-frequency speaker, including a voice coil, a magnet is fixedly connected at the center of one side of the voice coil, a housing is fixedly connected to the outer side of the magnet, a circuit is fixedly connected to the middle of the housing, a wire groove is fixedly connected to one side of the housing, a mounting ring is fixedly connected to the outer diameter of the voice coil, and a wiring hole is opened on one side of the mounting plate; When the structure is in use, the connection between the circular groove and the wire groove is utilized so that the line in the middle of the shell and the installation line can be directly entered into the wire groove after being merged, thereby setting the interface of the two lines near the wiring hole. The speaker can be installed first, and then the wiring hole is opened to connect the internal line, avoiding the need to support the main body to connect the line when installing the speaker. The wire groove is used to guide the line and the installation line to the direction of the wiring hole, avoiding the situation where the line contacts the voice coil in a scattered state and affects the pronunciation quality. However, the structure does not reserve low-frequency extension when in use, resulting in lower volume power to withstand and output, causing the speaker to easily generate unnecessary vibrations at specific frequencies, thereby reducing the clarity and accuracy of the sound. Summary of the invention

[0004] In order to overcome the above defects of the prior art, the present invention provides a low-frequency loudspeaker, aiming to solve the problems raised in the above background technology.

[0005] The present invention provides the following technical solution: a low-frequency speaker, comprising a reinforced polypropylene shell, wherein a connecting component is arranged on the reinforced polypropylene shell; The connection assembly includes a butt joint arranged on the top of a reinforced polypropylene shell, a reinforced support inner liner is embedded in the top of the inner cavity of the reinforced polypropylene shell, a speaker voice coil body is arranged inside the reinforced support inner liner, and a low-frequency diaphragm body for pushing air is arranged on the top of the speaker voice coil body; A protective ring body is provided in the middle of the docking head. An audio loudspeaker is provided in the middle of the protective ring body. A main board is provided at the bottom of the inner cavity of the reinforced polypropylene housing. An elastic support bar for elastic support is plugged on the main board. A damping energy-absorbing seat for absorbing excess vibration is provided at the top of the elastic support bar. Two limiting card slots are opened on the outer side of the elastic support bar, and wiring strips are embedded in each of the limiting card slots. One ends of the plurality of wiring strips are all provided with limiting blocks. A limiting hook groove for limiting the wire is opened on one side of the limiting block facing the elastic support bar. A wire slot cavity for combing the wire is opened on the limiting block; It can be seen that in the above technical solution, the wire is limited by the wire slot cavity, and the limiting hook groove can hook the wire to prevent the wire from being messy and contacting the speaker voice coil main body during the wiring of the device, and to avoid the situation that the wire in the scattered state contacts the speaker voice coil main body and affects the pronunciation quality. When the speaker voice coil main body is running, the elastic support bar provides the function of elastic support for the damping energy-absorbing seat to ensure the stable installation of the damping energy-absorbing seat and reduce the vibration transmission. The setting of the reinforcing support bar is used to absorb excess vibration to optimize the sound of the speaker voice coil main body, reduce the interference and resonance between different frequency bands. The reinforcing support inner cylinder ensures the stable connection between the low-frequency diaphragm main body and the protective ring body under high power of the speaker voice coil main body, avoiding mechanical failures. The low-frequency diaphragm main body pushes more air when the speaker voice coil main body emits low frequencies, improving the low-frequency performance and generating a stronger low-frequency response. The flow splitting cavity at the bottom of the low-frequency diaphragm main body is used to split the air while pushing more air, and at the same time realizes the ventilation design of the speaker, preventing the speaker voice coil main body from overheating and improving the heat dissipation performance and power bearing capacity; Optionally, in a possible implementation manner, clamping blocks are respectively clamped at both ends of the bottom of the main board, and each clamping block extends to the bottom of the inner wall of the reinforced polypropylene housing and is clamped with the reinforced polypropylene housing. A plurality of reinforcing support bars are distributed on the inner wall of the reinforced polypropylene housing, and a flow guiding air channel is formed between each adjacent two reinforcing support bars. Buttons are provided on both sides of the reinforced polypropylene housing. A plurality of flow splitting cavities are opened at the bottom of the low-frequency diaphragm main body. An embedded rib is embedded in the middle of the damping energy-absorbing seat and is clamped with the damping energy-absorbing seat. An extension cylinder is provided in the middle of the low-frequency diaphragm main body, and the top of the extension cylinder extends to the middle of the protective ring body. The vertical cross-sectional shape of the protective ring body is set to be conical. A constraint ring body is sleeved on the outer side of the elastic support bar, and the constraint ring body is located on the main board and is clamped with the main board. A clamping ring body is sleeved on the outer side of the protective ring body, and the clamping ring body is located in the middle of the docking head and is clamped with the docking head. The top of the reinforcing support inner cylinder extends to the top of the inner wall of the docking head and is clamped with the docking head. The damping energy-absorbing seat extends to the bottom of the speaker voice coil main body, and the elastic support bar is threadedly connected with the damping energy-absorbing seat.

[0006] Technical effects and advantages of the present invention: 1. When the main body of the speaker voice coil is operating, the elastic support strip provides an elastic support function for the damping energy absorption seat to ensure the stable installation of the damping energy absorption seat, reduce vibration transmission, and the strengthened support strip is provided to absorb excess vibration, so as to optimize the sound generation of the speaker voice coil main body, reduce interference and resonance between different frequency bands, and the strengthened support inner liner ensures the stable connection between the low-frequency diaphragm main body and the protective ring body under high power of the speaker voice coil main body, avoiding mechanical failures and improving conversion efficiency; 2. The low-frequency diaphragm main body of the present invention pushes more air when the speaker voice coil main body emits low frequencies, improving the low-frequency performance and generating a stronger low-frequency response. The shunt cavity at the bottom of the low-frequency diaphragm main body is used to push more air and shunt the air at the same time, realizing the ventilation design of the speaker, preventing the speaker voice coil main body from overheating, and improving the heat dissipation performance and power tolerance; 3. The present invention limits the wire through the wire groove cavity, and the limit hook groove can hook the wire to prevent the wire from being messy and contacting the speaker voice coil main body during wiring, avoiding the situation that the wire in the scattered state contacts the speaker voice coil main body and affects the pronunciation quality; In summary, the overall design is simple and the structure is reasonable. Through the corresponding cooperation of each structure, the elastic support strip provides an elastic support function for the damping energy absorption seat to ensure the stable installation of the damping energy absorption seat, reduce vibration transmission, and the strengthened support strip is provided to absorb excess vibration, so as to optimize the sound generation of the speaker voice coil main body, reduce interference and resonance between different frequency bands, and the strengthened support inner liner ensures the stable connection between the low-frequency diaphragm main body and the protective ring body under high power of the speaker voice coil main body, avoiding mechanical failures. The low-frequency diaphragm main body pushes more air when the speaker voice coil main body emits low frequencies, improving the low-frequency performance and generating a stronger low-frequency response. The shunt cavity at the bottom of the low-frequency diaphragm main body is used to push more air and shunt the air at the same time, realizing the ventilation design of the speaker, preventing the speaker voice coil main body from overheating, improving the heat dissipation performance and power tolerance, improving the conversion efficiency, realizing low-frequency extension, increasing power, and reducing resonance. Description of the Drawings

[0007] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings required for use in some embodiments. Obviously, the drawings in the following description are only the drawings of some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limitations on the actual sizes of the products, the actual processes of the methods, the actual timings of the signals, etc. involved in the embodiments of the present disclosure.

[0008] Figure 1 This is the front view of the overall structure of the present invention.

[0009] Figure 2 This is the sectional view of the overall structure of the present invention.

[0010] Figure 3 This is the perspective view of the main board, elastic support strips, damping energy absorption seats, restraint ring bodies and wire management strips of the present invention.

[0011] Figure 4 This is a schematic diagram when the voice coil body of the loudspeaker, the docking head, the protective ring body, the audio amplifier and the snap ring body of the present invention are installed together.

[0012] Figure 5 This is the perspective view of the reinforced polypropylene housing, the reinforced support strip and the button of the present invention.

[0013] Figure 6 This is the Figure 4 exploded view of the present invention.

[0014] Figure 7 This is the Figure 3 sectional view of the present invention.

[0015] The reference numerals in the drawings are: 1, reinforced polypropylene housing; 2, docking head; 3, reinforced support inner liner; 4, voice coil body of loudspeaker; 5, low-frequency diaphragm body; 6, protective ring body; 7, audio amplifier; 8, main board; 9, elastic support strip; 10, damping energy absorption seat; 11, limit card slot; 12, wire management strip; 13, limit block; 14, limit hook groove; 15, wire management groove cavity; 16, clamping block; 17, reinforced support strip; 18, diversion air duct; 19, button; 20, shunt cavity; 21, embedded rib; 22, extended cylinder; 23, restraint ring body; 24, snap ring body. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] As shown in the Figure 1 - Figure 7A low-frequency loudspeaker as shown can, through the connection components provided on the reinforced polypropylene housing 1, ensure the stable installation of the damping energy-absorbing seat 10 by the corresponding cooperation of various structures, and the elastic support strip 9 provides the function of elastic support for the damping energy-absorbing seat 10 to reduce vibration transmission. The setting of the reinforced support strip 17 is used to absorb excess vibration, so as to optimize the sound of the voice coil body 4 of the loudspeaker, reduce interference and resonance between different frequency bands. The reinforced support lining cylinder 3 ensures the stable connection between the low-frequency diaphragm body 5 and the protective ring body 6 under high power of the voice coil body 4 of the loudspeaker, avoiding mechanical failures. The low-frequency diaphragm body 5 pushes more air when the voice coil body 4 of the loudspeaker emits low frequencies, improving the low-frequency performance and generating a stronger low-frequency response. The shunt cavity 20 at the bottom of the low-frequency diaphragm body 5 is used to shunt the air while pushing more air, and at the same time realizes the ventilation design of the loudspeaker, preventing the voice coil body 4 of the loudspeaker from overheating, improving the heat dissipation performance and power tolerance, increasing the conversion efficiency, realizing low-frequency extension, increasing power and reducing resonance. The specific structural settings of the components are as follows; The connection components include a docking head 2 provided at the top of the reinforced polypropylene housing 1. The top of the inner cavity of the reinforced polypropylene housing 1 is embedded with a reinforced support lining cylinder 3. The inside of the reinforced support lining cylinder 3 is provided with a voice coil body 4 of the loudspeaker. The top of the voice coil body 4 of the loudspeaker is provided with a low-frequency diaphragm body 5 for pushing air; The middle of the docking head 2 is provided with a protective ring body 6. The middle of the protective ring body 6 is provided with an audio amplifier 7. The bottom of the inner cavity of the reinforced polypropylene housing 1 is provided with a main board 8. An elastic support strip 9 for elastic support is plugged on the main board 8. The top of the elastic support strip 9 is provided with a damping energy-absorbing seat 10 for absorbing excess vibration. Two limiting card slots 11 are opened on the outside of the elastic support strip 9, and a wire arranging strip 12 is embedded in each limiting card slot 11. One ends of a plurality of wire arranging strips 12 are all provided with limiting blocks 13. A limiting hook groove 14 for limiting the wire is opened on the side of the limiting block 13 facing the elastic support strip 9. A wire arranging groove cavity 15 for arranging the wire is opened on the limiting block 13; At both ends of the bottom of the main board 8, there are snap blocks 16 respectively, and each snap block 16 extends to the bottom of the inner wall of the reinforced polypropylene housing 1 and is snap-connected to the reinforced polypropylene housing 1. A number of reinforcing support bars 17 are distributed on the inner wall of the reinforced polypropylene housing 1, and a diversion air channel 18 is formed between every two adjacent reinforcing support bars 17. Buttons 19 are arranged on both sides of the reinforced polypropylene housing 1. A number of shunt cavities 20 are formed at the bottom of the low-frequency diaphragm main body 5. An embedded rib 21 is embedded in the middle of the damping and energy-absorbing seat 10, and the embedded rib 21 is snap-connected to the damping and energy-absorbing seat 10. An extension cylinder 22 is arranged in the middle of the low-frequency diaphragm main body 5, and the top of the extension cylinder 22 extends to the middle of the protective ring body 6. The vertical cross-sectional shape of the protective ring body 6 is set as a cone. A restraint ring body 23 is sleeved outside the elastic support bar 9, and the restraint ring body 23 is located on the main board 8 and is snap-connected to the main board 8. A snap ring body 24 is sleeved outside the protective ring body 6, and the snap ring body 24 is located in the middle of the docking head 2 and is snap-connected to the docking head 2. The top of the reinforced support inner liner cylinder 3 extends to the top of the inner wall of the docking head 2, and the reinforced support inner liner cylinder 3 is snap-connected to the docking head 2. The damping and energy-absorbing seat 10 extends to the bottom of the speaker voice coil main body 4, and the elastic support bar 9 is threadedly connected to the damping and energy-absorbing seat 10.

[0018] During the use of the device according to the above structure, when in use, the wire trough cavity 15 limits the wires, and the limit hook groove 14 can hook the wires, preventing the wires from being messy and contacting the speaker voice coil main body 4 during the wiring of the device, and avoiding the situation that the wires in the scattered state contact the speaker voice coil main body 4 and affect the sound quality; At the same time, when the speaker voice coil main body 4 is operating, the elastic support bar 9 provides the function of elastic support for the damping and energy-absorbing seat 10 to ensure the stable installation of the damping and energy-absorbing seat 10 and reduce the vibration transmission. The setting of the reinforcing support bars 17 is used to absorb the excess vibration, so as to optimize the sound of the speaker voice coil main body 4 when it emits sound, and reduce the interference and resonance between different frequency bands. The reinforced support inner liner cylinder 3 ensures the stable connection between the low-frequency diaphragm main body 5 and the protective ring body 6 under high power of the speaker voice coil main body 4, and avoids mechanical failures; At the same time, when the speaker voice coil main body 4 emits low frequencies, the low-frequency diaphragm main body 5 pushes more air, improving the low-frequency performance and generating a stronger low-frequency response. The shunt cavities 20 at the bottom of the low-frequency diaphragm main body 5 are used to shunt the air while pushing more air, and at the same time realize the ventilation design of the speaker, preventing the speaker voice coil main body 4 from overheating, and improving the heat dissipation performance and power bearing capacity; Differing from the prior art, the present application discloses a low-frequency loudspeaker. Through the corresponding cooperation of each structure, the elastic support strip 9 provides the function of elastic support for the damping energy-absorbing seat 10 to ensure the stable installation of the damping energy-absorbing seat 10 and reduce vibration transmission. The setting of the reinforcing support strip 17 is used to absorb excess vibration, so as to optimize the sound production of the loudspeaker voice coil body 4, reduce interference and resonance between different frequency bands. The reinforcing support inner cylinder 3 ensures the stable connection between the low-frequency diaphragm body 5 and the protective ring body 6 under high power of the loudspeaker voice coil body 4, avoiding mechanical failures. The low-frequency diaphragm body 5 pushes more air when the loudspeaker voice coil body 4 emits low frequencies, enhancing the low-frequency performance and generating a stronger low-frequency response. The flow-dividing cavity 20 at the bottom of the low-frequency diaphragm body 5 is used to divide the air while pushing more air, and at the same time realizes the ventilation design of the loudspeaker, preventing the loudspeaker voice coil body 4 from overheating, enhancing the heat dissipation performance and power-bearing capacity, improving the conversion efficiency, and achieving low-frequency extension, increased power, and reduced resonance.

[0019] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A low-frequency loudspeaker, comprising a reinforced polypropylene housing (1), characterized in that: A connection component is provided on the reinforced polypropylene housing (1). The connection component includes a docking head (2) provided at the top of the reinforced polypropylene housing (1). A reinforced support inner cylinder (3) is embedded at the top of the inner cavity of the reinforced polypropylene housing (1). A speaker voice coil body (4) is arranged inside the reinforced support inner cylinder (3). A low-frequency diaphragm body (5) for pushing air is arranged at the top of the speaker voice coil body (4). A protective ring body (6) is arranged in the middle of the docking head (2). An audio amplifier (7) is arranged in the middle of the protective ring body (6). A main board (8) is arranged at the bottom of the inner cavity of the reinforced polypropylene housing (1). An elastic support strip (9) for elastic support is plugged on the main board (8). A damping energy absorption seat (10) for absorbing excessive vibration is arranged at the top of the elastic support strip (9). Two limiting card slots (11) are formed on the outer side of the elastic support strip (9), and a wire management strip (12) is embedded in each of the limiting card slots (11). One ends of the plurality of wire management strips (12) are all provided with limiting blocks (13).

2. The low-frequency loudspeaker according to Claim 1, characterized in that: A limiting hook groove (14) for limiting the wire is formed on one side of the limiting block (13) facing the elastic support strip (9). A wire groove cavity (15) for combing the wire is formed on the limiting block (13).

3. The low-frequency loudspeaker according to claim 1, characterized in that: Clamping blocks (16) are clamped at both ends of the bottom of the main board (8), and each of the clamping blocks (16) extends to the bottom of the inner wall of the reinforced polypropylene housing (1) and is clamped with the reinforced polypropylene housing (1).

4. The low-frequency loudspeaker according to claim 1, characterized in that: A plurality of reinforcing support strips (17) are distributed on the inner wall of the reinforced polypropylene housing (1), and a flow guiding air duct (18) is formed between each adjacent two reinforcing support strips (17). Buttons (19) are arranged on both sides of the reinforced polypropylene housing (1).

5. The low-frequency loudspeaker according to claim 1, characterized in that: A plurality of flow dividing cavities (20) are formed at the bottom of the low-frequency diaphragm body (5). An embedded rib (21) is embedded in the middle of the damping energy absorption seat (10), and the embedded rib (21) is clamped with the damping energy absorption seat (10).

6. The low-frequency loudspeaker according to claim 1, wherein: An extension cylinder (22) is arranged in the middle of the low-frequency diaphragm body (5). The top of the extension cylinder (22) extends to the middle of the protective ring body (6), and the vertical cross-sectional shape of the protective ring body (6) is set to be conical.

7. The low-frequency loudspeaker according to claim 1, characterized in that: A restraint ring body (23) is sleeved on the outer side of the elastic support strip (9), and the restraint ring body (23) is located on the main board (8) and is clamped with the main board (8).

8. The low-frequency loudspeaker according to claim 1, wherein: A clamping ring body (24) is sleeved on the outer side of the protective ring body (6), and the clamping ring body (24) is located in the middle of the docking head (2) and is clamped with the docking head (2).

9. The low-frequency loudspeaker according to claim 1, wherein: The top of the reinforced support inner cylinder (3) extends to the top of the inner wall of the docking head (2), and the reinforced support inner cylinder (3) is clamped with the docking head (2).

10. The low-frequency loudspeaker according to claim 1, characterized in that: The damping energy absorption seat (10) extends to the bottom of the speaker voice coil body (4), and the elastic support strip (9) is in threaded connection with the damping energy absorption seat (10).

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