CN102143418B - Air convection type inverter speaker - Google Patents

Abstract

The present invention relates to the field of audio, and in particular to an air convection bass reflex speaker that can achieve significant heat dissipation effects through air flow. An air convection bass reflex speaker is characterized in that there are two frustum-shaped bass reflex tubes inside the box, which are installed in reverse. When the speaker is working, the air in the internal space and the air in the external space flow through the bass reflex tube; since the air outside and inside the speaker box continuously flows in one direction, not only is the heat dissipation speed fast and efficient, but the structure is simple and easy to implement, which increases the service life of the speaker, and leads the bass reflex speaker into a new era of high efficiency, high energy and low carbon that achieves good heat dissipation effects through air convection.

Description

Air convection type inverter speaker

technical field

The invention relates to the field of audio, in particular to an air convection type inverter sound box capable of achieving a significant heat dissipation effect through air flow.

Background technique

Inverted speakers are generally composed of a speaker box, a horn fixed on the speaker box, and an inverter tube. Its notable feature is that the inside of the box is communicated with the outside space through the inverter tube, and the outlet that communicates with the outside world is the inverter hole. When the speaker is working, the diaphragm will move back and forth continuously to push the air, making people Hear the sound; the function of the inverter tube is to make the vibrating air inside the box in phase with the sound wave radiated forward by the speaker, increasing the sound pressure level.

However, the inverter tubes used in all vented speakers are straight tubes. When the speaker is working, there is almost no pressure difference in the air inside the box, and there will be no air flow. The only way to dissipate heat is through conduction. or radiation cooling.

Contents of the invention

In order to solve the above problems, the present invention provides a truncated conical inverted tube, which utilizes the continuous flow of air to achieve the purpose of fast heat dissipation.

In order to achieve the above object, the technical solution adopted in the present invention is: an air convection phase-inverted speaker, the speaker box is in the shape of a cuboid, a speaker installation hole is opened on the front side of the box body, and two phase-inverted holes are opened on the back side of the box body. It is characterized in that: the two ends of the phase-inverting hole have different sizes, one end of the phase-inverting tube extends inside the box, and the other end is fixed and communicated with the outer space of the box, so that the air in the inner space and the air in the outer space are generated flow. the

Wherein, the hole area of the inverter tube 2 communicating with the external space is equal to the hole area of the inverter tube 3 communicating with the inner space of the box body, and the hole area of the inverter tube 2 communicating with the inner space of the box body is equal to the hole area of the inverter tube 3 communicating with the inner space of the box body. The area of the hole communicating with the external space.

Wherein, the area of the hole communicating with the external space of the inverter tube 2 is more than twice the area of the hole communicating with the external space of the inverter tube 3 .

Wherein, the inverter tube is installed inside the speaker box.

The beneficial effect of the present invention is: because the technical scheme adopted in the invention is a special inverter tube, the speaker cabinet is in the shape of a cuboid, a speaker installation hole is opened on the front of the cabinet, and two inverter holes are opened on the back of the cabinet, The areas of the two phase-inverting holes are different in size, so that the air in the inner space and the air in the outer space can flow. The pressure difference is generated by two inverted tubes with different opening areas, so that the air outside and inside the speaker continues to flow to achieve the effect of heat dissipation. The heat dissipation speed is fast and the efficiency is high, which improves the service life of the speaker and leads the inverter speaker. It has come to a new era of high efficiency and high energy through air convection to achieve good heat dissipation.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is the A-A sectional view in Fig. 2 of the present invention.

Fig. 4 is a B-B sectional view in Fig. 2 of the present invention.

Fig. 5 is a rear view of the present invention.

Description of reference numerals: 1-cabinet; 2-inverting tube; 3-inverting tube; 4-horn installation hole; 5-external terminal board hole.

Detailed ways

Below, in conjunction with the accompanying drawings, the specific implementation manners of the present invention will be introduced.

As shown in Figure 1-5, the air convection type inverter speaker, the speaker box 1 is in the shape of a cuboid, and the speaker installation hole 4 can be opened on the front or any side of the box body 1, and two inverter holes are opened on the back of the box body 1 , the size of the horn installation hole 4 covers a part of the two inverter tubes respectively, such as about 1/3; The area of the holes communicated with the space is equal to the hole area of the inverter tube 3 communicated with the inner space of the box body 1, the area of the holes communicated with the inner space of the box body 1 by the inverter tube 2 is equal to the hole area of the inverter tube 3 communicated with the external space, and the phase inverter The diameter of the end of tube 2 communicating with the outside world is D=85mm (not limited), and the diameter of the end communicating with the inside is D=60mm (not limited); The diameter of the connected end is D=85mm (not limited); one end of the inverter tube extends inside the box body 1, and the other end is fixed to the box body 1 through an inverter hole; the hole area of the inverter tube 2 communicating with the external space is inverted The area of the hole that the phase tube 3 communicates with the external space is more than twice the area, so that the air in the internal space and the air in the external space generate convection; the end of the phase-inverting tube that communicates with the internal space has a certain distance from the inside of the front panel; the sound box A hole 5 for an external terminal board is provided.

From the above embodiments, the area of the hole at one end of the inverter tube 2 communicating with the outside world is greater than or equal to twice the area of the hole at the end of the inverter tube 3 communicating with the inside. convection phenomenon.

The method of checking the air convection phenomenon between the inside and the outside of the present invention is as follows: First, stick paper strips on the holes connecting the two inverter tubes with the outside space. When the speaker is started to work at low frequency, the diaphragm vibrates back and forth, and the box There is a pressure difference between the air inside and the outside, forcing the air in the box 1 to flow; when the diaphragm vibrates toward the inside of the box 1, the air in the box 1 is pressed inward, and the air will flow to the outside through the inverter tube. Space flow, because the area of the hole connecting the phase-inverting tube and the interior is different, the pressure generated is also different, so the air flowing to the phase-leading tube with a large hole area will be much smaller than the hole area, so the hole communicating with the internal space The area of the inverter tube whose area is larger than the area of the communication hole with the external space will cause air to flow from the internal space to the external space, so the paper pasted on the hole 2 of the inverter tube will be blown outward; when the diaphragm moves toward the box 1 When the external direction vibrates, the air outside the box body 1 is pressed outward, and the air will flow to the external space through the inverter tube. Since the area of the hole communicating with the inside of the inverter tube is different, the pressure generated is also different. The flow air of the conduit with a large hole area will be much smaller than the hole area, so the inverted tube with a larger hole area communicating with the external space than the internal space will cause air to flow from the external space to the internal space, so it is attached to the inverted tube. The paper on the 3rd hole of the phase tube will be adsorbed inward; and the diaphragm is constantly vibrating back and forth, so the air is constantly convected, so the two papers are continuously blown and adsorbed, which can explain the air flow of the present invention. The convection-type inverter speaker can produce air convection, and the continuous convection between the inside of the cabinet 1 and the outside air can achieve a good heat dissipation effect; the inspection method can be replaced by smoke, and the smoke can occur from a When a small-area hole enters and exits from another large-area hole. It can be shown that the present invention can realize the convection phenomenon between the air inside the box body 1 and the outside, and can achieve a good heat dissipation effect.

To sum up, the air convection sound box structure of the present invention uses the truncated conical inverted tube, and the sound box can produce obvious convection phenomenon between the internal and external air when it works at low frequency, and achieves a good sound quality without affecting the sound quality. The heat dissipation effect caused by air convection not only has a fast heat dissipation speed, but also can improve the service life of the speaker.

The above descriptions are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention in any way. Those skilled in the industry can make some deformations and modifications under the enlightenment of this technical solution, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to the technology of the present invention within the scope of the program.

Claims (1)

1. an air convection type phase reversal sound box; sound box is cuboid body; casing front has a loudspeaker installing hole; box back surface has two paraphase holes; it is characterized in that: the phase-reversing tube that is separately installed with two truncated cone-shaped on described paraphase hole; phase-reversing tube two ends area differs in size; the installation direction of two phase-reversing tubes is contrary; described phase-reversing tube one end extends box house; one end is fixed and is connected with the extraneous space of casing in addition, makes the air in inner space air and extraneous space produce mobile; The hole area that described phase-reversing tube one communicates with extraneous space equals the hole area that phase-reversing tube two communicates with box house space, and the hole area that phase-reversing tube two communicates with box house space equals the hole area that phase-reversing tube one communicates with extraneous space; The hole area that described phase-reversing tube one communicates with extraneous space is more than the twice of the hole area that communicates with extraneous space of phase-reversing tube two.