CN218830583U

CN218830583U - Phase reversal pipe structure and sound box

Info

Publication number: CN218830583U
Application number: CN202222588031.6U
Authority: CN
Inventors: 李豪
Original assignee: Shenzhen 3Nod Digital Technology Co Ltd
Current assignee: Shenzhen 3Nod Digital Technology Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-04-07
Anticipated expiration: 2032-09-28

Abstract

The application relates to audio amplifier equipment technical field, more specifically relates to a reverse tube structure, including paraphase pipe and center tube, the center tube cover is located in the paraphase pipe, with the paraphase pipe has the paraphase pipe clearance, the one end of center tube is connected the paraphase pipe. The application also relates to a loudspeaker box. The technical scheme that this application provided divides the operating region of the pipe that will invert originally into two at least regions, divide into an annular region and a circular region promptly, and two regions do not influence each other but can the autonomous working, under the condition that does not change the space that the pipe structure of inverting occupies, can prevent the potential safety hazard that the too big cause of pipe aperture of inverting again.

Description

Phase-reversing tube structure and sound box

Technical Field

The application relates to the technical field of sound box equipment, in particular to a reversing tube structure and a sound box.

Background

The inverter tube is used as an important component of the sound box, the structural size of the inverter tube can determine two sound qualities of low-frequency reproduction lower limit and wind noise reproduction of the sound box, and the working principle of the inverter tube is as follows: when the loudspeaker works, sound waves can be generated on the front side and the back side of the vibrating diaphragm, but the sound waves are in the same amplitude and reverse phase, if the sound waves of the two reverse phases are superposed in the listening position, the sound waves are counteracted, the closed sound box well isolates the reverse sound waves at the back side of the vibrating diaphragm, the problem that the sound waves are counteracted is avoided, particularly, the propagation of low frequency is counteracted, and the full low-sound listening feeling is ensured.

In the prior art, there are two configurations, one set of inverters (fig. 1) and two sets of inverters (fig. 2). The diameter of the inverter tube of a single group of inverter tubes (figure 1) is larger, foreign matters are easy to fall in, although an isolation net can be added, the isolation net is easy to deform when the area is too large, and the inherent frequency is closer to the resonance excitation frequency of the sound box to generate abnormal noise; the double set of inverter tubes (fig. 2) requires a large space inside the cabinet and the appearance of the double set of inverter tubes does not meet the user's needs for a specific structure of the cabinet, such as a cylindrical subwoofer.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application embodiment will solve is how to avoid the potential safety hazard that the too big cause in inverter tube aperture under the condition that does not influence the audio amplifier outward appearance, also can not additionally occupy the inside volume of audio amplifier simultaneously.

In order to solve the above technical problem, an embodiment of the present application provides an inverter tube structure, which adopts the following technical solutions:

the inverter tube structure includes: the phase inversion tube is sleeved in the central tube, a phase inversion tube gap exists between the central tube and the phase inversion tube, and one end of the central tube is connected with the phase inversion tube.

Further, the center tube has a center tube gap with a cross-sectional area that is close to or the cross-sectional area of the inverter tube gap.

Further, the inlet end of the phase inversion pipe and/or the central pipe is provided with a breathable net.

Further, the structure of the central tube corresponds to that of the inverter tube.

Further, the inverter tube comprises an inverter tube body and an inverter tube extension part, wherein the inverter tube extension part is arranged at the inlet end of the inverter tube body; the central pipe comprises a central pipe body and a central pipe extension part, and the central pipe extension part is arranged at the inlet end of the central pipe body; the inverter tube extension and the center tube extension extend in a vertical direction away from the axis of the inverter tube and form a curve.

Further, the inverter tube further comprises an inverter tube mounting part, and the inverter tube mounting part is connected with the inverter tube extension part; the central tube further comprises a central tube mounting part connected with the central tube extending part; the central tube mounting part is connected with the inverter tube mounting part.

Furthermore, the inverter tube and the central tube respectively comprise an inverter tube bending part and a central tube bending part; the inverter tube bending part is arranged at the outlet end of the inverter tube body, and the central tube bending part is arranged at the inlet and outlet end of the central tube body; the inverter tube bending part and the central tube bending part extend along the vertical direction far away from the axis of the inverter tube and form radians.

Furthermore, a connecting piece is arranged between the inverter tube and the central tube, and the connecting piece is arranged between the inner circumferential surface of the inverter tube and the outer circumferential surface of the central tube.

Further, the number of the connecting pieces is 3, and the connecting pieces are arranged along the axial line array of the central tube.

In order to solve the above technical problem, an embodiment of the present application further provides a sound box, which adopts the following technical scheme:

the audio amplifier includes: the loudspeaker is arranged in the box body, a mounting hole is formed in the box body, and the phase inversion tube structure is arranged in the mounting hole.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:

through establishing the center tube to the interior cover of paraphase pipe, the structure of center tube has realized the separation of paraphase pipe aperture, divides the operating region of paraphase pipe originally into two at least regions, divide into an annular region and a circular region promptly, and two regions do not influence but can independent work each other, under the condition that does not change the shared space of paraphase pipe structure, can prevent the potential safety hazard that the too big cause of paraphase pipe aperture again.

Drawings

In order to more clearly illustrate the present application or prior art solutions, a brief description of the drawings needed for the embodiments or prior art descriptions is provided below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic structural diagram of a single group of inverter tube speakers in the prior art;

FIG. 2 is a schematic diagram of a dual-group inverter tube speaker box in the prior art;

FIG. 3 is a schematic diagram of an inverter tube structure in an embodiment of the present invention;

FIG. 4 is a side view of the inverter tube structure in an embodiment of the present invention;

fig. 5 is a schematic structural view of the sound box in the embodiment of the present invention.

Reference numerals: an inverter tube 1, an inverter tube body 11, an inverter tube gap 12, an inverter tube extension 13, an inverter tube mounting part 14, an inverter tube bending part 15, a center tube 2, a center tube body 21, a center tube gap 22, a center tube extension 23, a center tube mounting part 24, a center tube bending part 25, a connector 3, a cabinet 4, a speaker 5, and a protection net 6.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the foregoing drawings are used for distinguishing between different objects and not for describing a particular sequential order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

Embodiments of inverter tube apparatus of the present application

Referring to fig. 3-4, the inverter structure includes: the inverter tube comprises an inverter tube 1 and a central tube 2, wherein the central tube 2 is sleeved in the inverter tube 1, an inverter tube gap 11 exists between the central tube and the inverter tube 1, and one end of the central tube 2 is connected with the inverter tube 1.

The central tube 2 is sleeved in the phase inverter tube 1, the central tube 2 divides the working area of the phase inverter tube 1 into two areas, namely, the inner area of the central tube 2 and the inner circumference of the phase inverter tube 1 and the outer circumference of the central tube 2 are enclosed to form an area, and the area of any area of the two areas is much smaller than that of a single phase inverter tube 1 in the prior art, so that the potential safety hazard caused by the overlarge aperture of the phase inverter tube is avoided under the condition that the appearance of the sound box is not influenced, and meanwhile, the volume in the sound box is not additionally occupied.

In other embodiments of the present application, the working area of the inverter tube 1 may be divided into a plurality of areas by sleeving a plurality of central tubes 2.

It is noted that the effective working area of the inverter tube 1 depends on the sum of the cross-sectional areas of the working areas, i.e. the sum of two or more areas as described above is superimposed, so that the central tube 2 is arranged in such a way that it does not affect the ergonomics of the inverter tube 1.

Specifically, the center tube 2 has a center tube gap 21, and the cross-sectional area of the center tube gap 21 is close to the cross-sectional area of the inverter tube gap 11.

Specifically, the center tube 2 has a center tube gap 21, and the cross-sectional area of the center tube gap 21 is the cross-sectional area of the inverter tube gap 11.

The central tube gap 22 and the inverter tube gap 12 correspond to the two regions, and the central tube body 21 separates the central tube gap 22 from the inverter tube gap 12 to prevent the central tube gap 22 from communicating with the inverter tube gap 12.

The central tube gap 22 is the same or close to the inverter tube gap 12 to reduce the extent to which the two regions will experience low frequency response mismatch, it being understood that the two regions are fully tuned when the cross-sectional area of the central tube gap 22 is the same as the cross-sectional area of the inverter tube 12 gap.

In particular, the inlet end of the phase inversion tube 1 and/or the central tube 2 is provided with a gas permeable mesh.

The inlet end of the inverter tube 1 and/or the inlet end of the central tube 2 are/is provided with a breathable net, breathable cloth or decorative sound net, so that the external visual sense effect of the inverter tube structure can be adjusted, the appearance of a large ventilation volume and a small-diameter opening is realized, and the exposure of an internal structure is avoided.

In particular, the structure of the central tube 2 corresponds to the structure of the inverter tube 1.

The shape of the central tube 2 corresponds to the structure of the inverter tube 1, i.e. the structure of the central tube 2 is adapted according to the structure of the inverter tube 1, for example: if the inverter tube 1 is bent at a certain position, the central tube 2 is also bent at the same position; if the inverter tube 1 is a straight tube, the center tube 2 is also a straight tube.

The central tube 2 corresponds to the phase inversion tube 1 in structure, so that the air duct can keep stable flow, and noise generated by air duct disorder is avoided.

Specifically, inverter tube 1 and center tube 2 respectively further include inverter tube extension 13 and center tube extension 23, both for guiding the airflow; the inverter tube extension 13 is disposed at the inlet end of the inverter tube body 11, and the center tube extension 23 is disposed at the inlet end of the center tube body 21; the inverter tube extension 13 and the center tube extension 23 extend in a vertical direction away from the axis of the inverter tube 1 and are formed into a curve.

The entry end of inverted phase pipe 1 and center tube 2 all sets up the extension for reduce the torrent of air current business turn over, avoid wind to make an uproar to produce, simultaneously, the entry end of inverted phase pipe body 11 and the entry end of center tube body 21 outwards extend simultaneously, and structural correspondence can reduce wind and make an uproar better.

Specifically, the inverter tube 1 further includes an inverter tube mounting portion 14, and the inverter tube mounting portion 14 is connected to the inverter tube extension portion 13; the center tube 2 further comprises a center tube mounting part 24, and the center tube mounting part 24 is connected with the center tube extending part 23; center tube mounting portion 24 is connected to inverter tube mounting portion 14.

This application central tube installation portion 24 connects inverted tube installation portion 14 for as the fixed area of inverted tube structure, if the inverted tube structure need assemble on specific certain part, then through fixed area with the part cooperation can, be convenient for install fast and dismantle, simultaneously, can also set up a fixed knot in fixed area and construct, for example riveted structure, joint structure, screw structure etc. and the part cooperation, specific structure need correspond the setting with the part, and it is no longer repeated here.

Specifically, the center tube mounting portion 24 and the inverter tube mounting portion 14 are perpendicular to the axial direction of the inverter tube, and the center tube mounting portion 24 is connected in parallel to the inverter tube mounting portion 14 to form a mounting portion of the inverter tube structure by which the inverter tube 1 and the center tube 2 can be fixed.

Specifically, the inverter tube 1 and the central tube 2 respectively further include an inverter tube bending part 15 and a central tube bending part 25; the inverter tube bending part 15 is arranged at the outlet end of the inverter tube body 11, and the central tube bending part 25 is arranged at the inlet and outlet end of the central tube body 21; the inverter tube bending part 15 and the center tube bending part 25 extend in a vertical direction away from the axis of the inverter tube 1 and form a curvature.

The outlet ends of the phase reversal pipe 1 and the central pipe 2 are respectively provided with a bending part which is also used for reducing the turbulence of the air flow in and out and avoiding the wind noise.

Specifically, a connection member 3 is provided between the inverter tube 1 and the center tube 2, and the connection member 3 is provided between an inner circumferential surface of the inverter tube 1 and an outer circumferential surface of the center tube 2.

The connecting piece 3 is used for supporting and fixing the central tube 2, and the position of the connecting piece 3 can be connected with the central tube body 11, the central tube extending part 13 and the central tube bending part 14 at any position of the inverter tube body 11, the inverter tube extending part 13 and the inverter tube bending part 14, namely the position of the connecting piece 3 can not be correspondingly arranged, for example, the connecting piece 3 can be arranged between the inverter tube body 11 and the central tube extending part 13; the connecting member 3 may be disposed at a corresponding position, and for example, the connecting member 3 may be disposed between the inverter pipe body 11 and the center pipe body 21.

It should be noted that the connecting members 3 may be a group, that is, the connecting members 3 may be disposed at only one position, and the connecting members 3 may also be a plurality of groups, that is, the connecting members 3 may be disposed at least two positions.

Specifically, the number of the connecting members 3 is 3, and the connecting members are arranged in an array along the axis of the central tube.

In other embodiments of the present application, the number of the connecting members is not limited to 3, and may be more than 3 or less than 3, which is set according to the actual situation.

Specifically, a protective net 6 is provided in the center pipe gap 22 for preventing foreign matter from entering.

Embodiments of the present invention for inverter tube apparatus

Referring to fig. 5, the speaker includes: the loudspeaker 5 is arranged in the box body 4, a mounting hole (not shown) is formed in the box body 4, and the inverter tube structure is arranged in the mounting hole.

The sound box with the phase inversion tube structure can solve the potential safety hazard caused by the overlarge through hole of the phase inversion tube under the condition of ensuring the attractive appearance of the sound box.

Specifically, the inverter tube structure is disposed at the top end of the cabinet 4, the speaker 5 is disposed at the bottom end of the sound box 4, and the position of the inverter tube structure corresponds to the position of the speaker 5.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and the embodiments are provided so that this disclosure will be thorough and complete. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. An inverter tube structure, comprising: the phase inverter comprises an inverter tube and a central tube, wherein the central tube is sleeved in the inverter tube, an inverter tube gap exists between the central tube and the inverter tube, and one end of the central tube is connected with the inverter tube.

2. The inverter tube structure of claim 1, wherein the center tube has a center tube gap having a cross-sectional area that is close to or the cross-sectional area of the inverter tube gap.

3. Inverter tube structure according to claim 1, characterised in that the inlet end of the inverter tube and/or the central tube is provided with a gas permeable mesh.

4. The inverter tube structure of claim 1, wherein the structure of the center tube corresponds to the structure of the inverter tube.

5. The inverter tube structure of claim 1, wherein the inverter tube includes an inverter tube body and an inverter tube extension portion, the inverter tube extension portion being disposed at an inlet end of the inverter tube body; the central tube comprises a central tube body and a central tube extension part, and the central tube extension part is arranged at the inlet end of the central tube body; the inverter tube extension and the center tube extension extend in a vertical direction away from an axis of the inverter tube and form a curve.

6. The inverter tube structure of claim 5, wherein the inverter tube further comprises an inverter tube mounting portion, the inverter tube mounting portion being connected to the inverter tube extension; the central tube further comprises a central tube mounting part which is connected with the central tube extending part; the central tube mounting part is connected with the inverter tube mounting part.

7. The inverter tube structure of claim 5, wherein the inverter tube and the center tube further comprise an inverter tube bend and a center tube bend, respectively; the bending part of the phase inversion pipe is arranged at the outlet end of the phase inversion pipe body, and the bending part of the central pipe is arranged at the inlet and outlet end of the central pipe body; the inverter tube bending part and the central tube bending part extend along the vertical direction far away from the axis of the inverter tube and form radians.

8. The inverter tube structure according to claim 1, wherein a connection member is provided between the inverter tube and the center tube, the connection member being provided between an inner peripheral surface of the inverter tube and an outer peripheral surface of the center tube.

9. The inverter tube structure of claim 8, wherein the number of connectors is 3 and is arranged in an array along the axis of the center tube.

10. A sound box, comprising a box body, a speaker, and the inverter tube structure of any one of claims 1-9, wherein the speaker is disposed in the box body, the box body is provided with a mounting hole, and the inverter tube structure is disposed in the mounting hole.