CN103905951B - A kind of loud speaker and its sound wave divide guider - Google Patents

Abstract

The invention provides a loudspeaker, comprising a box body, a high frequency driver, a low frequency driver, a sound wave voltage divider guide and a horn, the high frequency driver and the low frequency driver are built in the box body, the high frequency driver and the sound wave voltage divider The guide is connected, and the acoustic wave divider guide includes a pressure divider, a voltage divider and at least two guide tubes, the pressure divider is built in the pressure divider, and the guide tube extends outward from the pressure divider. The pressure divider is connected to the high-frequency driver of the speaker, the horn is connected to the guide tube, and the sound wave is divided into different sound pressure airflows through the voltage divider, which are transmitted to different guide tubes and output through the horn to realize the sound of the speaker. Multi-stage pressure division and multi-direction of sound waves.

Description

A loudspeaker and its acoustic wave dividing guide

technical field

The invention relates to a loudspeaker, in particular to a multi-horn loudspeaker and a sound wave dividing pressure guide.

Background technique

In the traditional loudspeaker design, it is often encountered that a high-frequency driver and a low-frequency driver are used to form a two-way speaker. Sound waves are projected into the use space. Since the sound pressure of the sound wave of the common high-frequency driver will be much higher than the sound pressure of the sound wave of the low-frequency driver, if the current high-frequency driver is equipped with a horn to cooperate with the low-frequency driver, the sound wave of the high-frequency driver cannot be made The energy is projected to the required space, because a horn has a fixed projection angle and the carrying limit of the sound pressure of the sound wave. In this structure, the electro-acoustic energy cannot be fully projected to the sound-receiving space, and the application efficiency of the electro-acoustic energy is low. question.

In addition, many existing speakers use built-in power dividers to send high-frequency signals to the high-frequency driver and low-frequency signals to the low-frequency driver, because the sound pressure of the high-frequency driver's sound waves will be much higher than that of the low-frequency driver. The sound pressure of the sound wave, if the sound wave energy of the high-frequency driver is completely released and projected through a horn, this will also cause a mismatch between the high-frequency and low-frequency sound pressure level signals, which will cause too many high-frequency sound waves in the axial direction of the low-frequency driver. And the high-frequency sound waves decrease sharply outside the position of the horn's axis. At the same time, the built-in power divider will cause a huge delay in the transient response of the high-frequency driver and the low-frequency driver, and increasing the horn length will cause the speaker's pointing angle to change. Narrow and other issues

Contents of the invention

Based on the deficiencies in the prior art, the main purpose of the present invention is to provide a kind of high-frequency driver and low-frequency driver sound waves can be carried out pressure-dividing process, the sound wave voltage-dividing director of dispersed diffusion output, and adopt the described sound wave voltage-dividing director speaker.

In order to achieve the purpose of the above invention, the present invention provides a sound wave guide for loudspeakers, which includes a pressure divider, a voltage divider and at least two guide tubes, the voltage divider is built in the pressure divider, and the guide The tube extends outward from the pressure divider port, which is connected to the sound wave emission port of the high-frequency driver of the speaker, and the sound waves emitted by the high-frequency driver are divided into different sound pressure airflows by the voltage divider and transmitted to different guide tubes Middle output to achieve multi-stage voltage division and multi-direction of the sound waves emitted by the high-frequency driver.

Preferably, the guide tube includes a sound wave inlet and a sound wave output port, and the sound wave inlet is connected to the sound wave emission port of the high-frequency driver. The sound wave output port is trumpet-shaped, and the sound wave inlet ports of the different guide tubes are connected.

Preferably, the pressure divider is arranged at the center of the pressure dividing port, and according to the sound wave pressure required by the sound wave output ports of different guide tubes, the sound waves of different pressures are distributed to different guide tubes for output.

The present invention also provides a loudspeaker, which includes a box body, a high-frequency driver, a low-frequency driver, a sound wave voltage dividing guide and a horn, wherein the high-frequency driver and the low-frequency driver are built in the box body, and the high-frequency driver It is connected with the acoustic wave partial pressure guide, and the acoustic wave partial pressure guide includes a pressure divider, a voltage divider and at least two guide pipes, the pressure divider is built in the pressure divider, and the guide pipe is connected from the pressure divider to the Extending outward, the pressure divider is docked with the sound wave emission port (traditionally called the throat) of the high-frequency driver of the speaker, the horn is connected with the guide tube, and the sound wave is divided into different sound pressure airflows by the voltage divider , transmitted to different guide tubes, and output through the horn to achieve multi-stage pressure division and multi-point guidance of the sound waves emitted by the high-frequency driver.

Compared with the prior art, the present invention adopts the sound wave divider guide on the loudspeaker to disperse and output the sound waves emitted by the high-frequency driver according to the difference in sound pressure. The divider guide is connected to the two horns through two guide tubes , so as to output and diffuse the sound waves from the high-frequency driver, through this voltage divider guide, the sound waves from the high-frequency driver can be divided and guided to different spaces that require sound waves from the high-frequency unit, thus improving the high-frequency The electroacoustic conversion efficiency of the frequency driver saves the attenuation resistance of the high frequency driver in the original built-in power divider, and also achieves the effect of frequency division output, which improves the use efficiency of the electroacoustic energy of the high frequency driver, making the high frequency The sound quality reproduction of the driver is greatly improved.

In addition, the horns are placed on both sides of the high-frequency driver and the low-frequency driver, which expands the transmission and diffusion range of the sound, making the sound image position of the sound played by the speaker more in line with the actual sound field. The two horns are simultaneously amplified on both sides of the speaker , which solves the problem of narrow pointing angle of the speaker. At the same time, the effective low frequency lower limit of the high-frequency driver is also reduced through the acoustic wave voltage dividing guide of the present invention, so that the frequency division point of the high-frequency driver and the low-frequency driver can accurately fall within the effective frequency range.

Description of drawings

Fig. 1 is the structural representation of the sound wave dividing pressure guide device of a kind of loudspeaker of the present invention;

Fig. 2 is a structural schematic diagram of a loudspeaker of the present invention.

Detailed ways

Referring to Fig. 1, the present invention provides a sound wave guide 100 for a loudspeaker, which includes a pressure divider 1, a voltage divider 2 and at least two guide tubes 3, and the voltage divider 2 is built in a pressure divider In port 1, the guide pipe 3 extends outward from the pressure dividing port 1, and the pressure dividing port 1 is connected to the sound wave emission port of the driver, and the sound waves emitted by the driver are divided into different sound pressure airflows through the voltage divider 2, It is transmitted to different guide pipes 3 for output, so as to realize multi-stage pressure division and multi-direction of the sound waves emitted by the driver.

Wherein, the pressure divider 1 is docked with the high-frequency driver of the loudspeaker, and the voltage divider 2 is built in the pressure divider 1, preferably, is located at the center of the pressure divider 1, according to the required sound wave output port of the guide tube 3 The sound wave pressure distributes sound waves of different pressures to different guide tubes 3 for output.

There are two guide pipes 3, which include a sound wave inlet 30 and a sound wave output port 32. The sound wave inlet 30 is connected to one side of the voltage divider 2, and the sound wave inlets 30 of the different guide pipes pass through the pressure divider. The device 2 is connected, and the sound wave sent by the driver can be divided by the voltage divider 2 to different sound wave input ports 30 to be distributed to different sound wave output ports 32 for output through the pressure divider port 1, and the sound wave output port 32 is in the shape of a horn . The guide pipe 3 is formed by injection molding or die casting.

Referring to Fig. 2, the present invention also provides a loudspeaker 200 using the acoustic wave voltage divider, which includes a cabinet 4, a high frequency driver 5, a low frequency driver 6, an acoustic wave voltage divider 100 and a horn 7, Wherein, the high-frequency driver 5 and the low-frequency driver 6 are built in the box body 1, and the high-frequency driver 6 is connected with the sound wave voltage divider 100, and the sound wave sent by the high frequency driver is transmitted by the sound wave voltage divider 100 according to the Sound pressure needs to disperse the output.

The acoustic wave divider guide 100 includes a pressure divider 1, a voltage divider 2 and at least two guide tubes 3, the pressure divider 2 is built in the pressure divider 1, and the guide tube 3 is formed by the pressure divider 1 Extending outward, the pressure divider 1 is connected to the high-frequency driver 6 of the loudspeaker, and the horn 7 is connected to the guide tube, and the sound waves emitted by the high-frequency driver are divided into different sound pressure airflows by the voltage divider 2 for transmission. To different guide tubes 3, output via the horn 7, in order to realize multi-stage pressure division and multi-direction of the sound wave of the speaker. The horn 7 is trumpet-shaped, one end of which is docked with the sound wave output port 32 of the guide tube 3, and the other end is fixed to the inner wall of the box to transmit the sound waves output by the guide tube 3 to the horn 7 for delivery and diffusion.

The sound wave divider guide is used on the loudspeaker to disperse and output the sound waves emitted by the high-frequency driver according to the sound pressure. The sound wave is output and spread out, thus eliminating the attenuation resistance of the high frequency driver in the original built-in power divider, and also achieving the effect of frequency division output, improving the use efficiency of the electroacoustic energy of the high frequency driver, making the high frequency The sound quality reproduction of the driver is greatly improved. In addition, the horns are placed on both sides of the high-frequency driver and the low-frequency driver, which expands the transmission and diffusion range of the sound, making the sound image position of the sound played by the speaker more in line with the actual sound field. The two horns are simultaneously amplified on both sides of the speaker , which solves the problem of narrow pointing angle of the speaker. At the same time, the effective low frequency lower limit of the high-frequency driver is also reduced through the acoustic wave voltage dividing guide of the present invention, so that the frequency division point of the high-frequency driver and the low-frequency driver can accurately fall within the effective frequency range.

Claims (9)

1. a kind of sound wave of loud speaker divides guider, it is characterised in that：It is oriented to including partial pressure mouth, divider and at least two Pipe, the divider are built in partial pressure mouth, and the guide pipe is extended outwardly by partial pressure mouth, the height of the partial pressure mouth and loud speaker The sound wave emission port of frequency driver docks, and the guide pipe is connected to each other with bugle, by divider by high frequency driver institute sounding Wave is divided into different acoustic pressure air-flows, is transmitted in different guide pipes, is exported by bugle, to realize to high frequency driver institute sounding The multistage partial pressure of wave and many places are oriented to.

2. the sound wave of loud speaker according to claim 1 divides guider, it is characterised in that：The guide pipe includes sound wave Access port and sound wave delivery outlet, the sound wave access port connect with divider side, the sound wave access port of the difference guide pipe It is communicated by divider.

3. the sound wave of loud speaker according to claim 2 divides guider, it is characterised in that：The divider is set to partial pressure The sound wave of different pressures is assigned to difference by the center of mouth, the acoustic pressure needed for sound wave delivery outlet according to different guide pipes Guide pipe in export.

4. the sound wave of loud speaker according to claim 2 divides guider, it is characterised in that：The sound wave delivery outlet is in loudspeaker Shape.

5. it is a kind of using sound wave as described in claim 1 divide guider loud speaker comprising babinet, high frequency driver, Low frequency drivers, sound wave partial pressure guider and bugle, it is characterised in that：The high frequency driver and Low frequency drivers are built in case In body, the high frequency driver and sound wave partial pressure guider connects, the sound wave partial pressure guider include divide mouth, divider and At least two guide pipes, the divider are built in partial pressure mouth, and the guide pipe is extended outwardly by partial pressure mouth, the partial pressure mouth It is docked with the high frequency driver of loud speaker, the bugle is connected to each other with guide pipe, is sent out high frequency driver by divider Sound wave is divided into different acoustic pressure air-flows, is transmitted in different guide pipes, is exported via bugle, to realize to high frequency driver institute The multistage partial pressure of the sound wave of hair and many places are oriented to；The bugle is in horn-like, and be placed in high frequency driver and Low frequency drivers Both sides.

6. loud speaker according to claim 5, it is characterised in that：The guiding of sound wave partial pressure guider contained by the loud speaker Pipe includes sound wave access port and sound wave delivery outlet, the sound wave emission port pair of the high frequency driver of the sound wave access port and loud speaker It connects.

7. loud speaker according to claim 6, it is characterised in that：The partial pressure of sound wave partial pressure guider contained by the loud speaker Device is set to the center of partial pressure mouth, the acoustic pressure needed for sound wave delivery outlet according to different guide pipes, by the sound wave of different pressures It is assigned in different guide pipes and exports.

8. loud speaker according to claim 6, it is characterised in that：The sound wave of sound wave partial pressure guider contained by the loud speaker Delivery outlet is in horn-like.

9. loud speaker according to claim 6, it is characterised in that：The difference of sound wave partial pressure guider contained by the loud speaker The sound wave access port of guide pipe is communicated by divider.