CN216017073U

CN216017073U - Phase-reversal sound box

Info

Publication number: CN216017073U
Application number: CN202122091975.8U
Authority: CN
Inventors: 史高峰
Original assignee: Fengshun Dehai Electronics Co ltd
Current assignee: Fengshun Dehai Electronics Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-03-11
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a phase inversion audio amplifier, including the shell that is equipped with the cavity with locate the loudspeaker in the cavity, the shell is including rotating lid and the base of connecting, the lid is opened at the lateral wall has the paraphase hole, still includes and can dismantle in the cavity and connect in the paraphase pipe in the paraphase hole. The utility model can adjust the sound emitting direction of the phase reversal hole by rotating the cover body, when a user places a sound box against the wall, the user does not need to worry about the influence of the wall blocking on the sound emitting effect, and the realization of the low frequency effect enhancement is ensured; in addition, the sound emitting direction of the inverter holes can be adjusted to face towards a listener, and the auditory experience is improved.

Description

Phase-reversal sound box

Technical Field

The utility model relates to a audio amplifier technical field especially relates to a phase inversion audio amplifier.

Background

The phase inversion speaker is also called a low frequency radiation speaker, and is also the most commonly used box design in multimedia speakers. The sound box is different from a closed sound box in that the outer wall of the box body of the sound box is provided with a cylindrical phase reversal hole to enable air inside and outside the box body to circulate, and the sound box has higher power bearing capacity and lower distortion than the closed box, has high sensitivity, and is suitable for common families and also can be used in halls or professional places.

In the prior art, in the design of a box body, a phase inversion sound box is provided with a phase inversion hole in the outer wall of the box body, a phase inversion tube is arranged in the phase inversion hole, when a loudspeaker works, sound waves are radiated to a specified direction through the phase inversion tube and are superposed with the sound waves radiated by the loudspeaker in the front direction, common radiation is realized, and the low-frequency effect is enhanced. The resonance of the cabinet and the inverter tube is utilized to expand the low frequency without changing the sound pressure of the loudspeaker. However, in the prior art, the sound emitting direction of the phase inverting hole is fixed and cannot be adjusted, which causes troubles to users in placing the sound box, for example: the fixed setting in the left side board of paraphase hole of audio amplifier, the direction of sounding in the paraphase hole must be towards left promptly, if the audio amplifier left side need hug closely the wall when putting, the wall can directly block the paraphase hole, influences the effect of sounding in the paraphase hole, is difficult to realize the low frequency effect reinforcing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a phase inversion sound box.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a phase inversion audio amplifier, is including the shell that is equipped with the cavity and locate the loudspeaker in the cavity, the shell is including the lid and the base of rotation connection, the lid is opened at the lateral wall has the phase inversion hole, still includes in the cavity and can dismantle the phase inversion pipe of connecting in the phase inversion hole.

Preferably, the inverter further comprises a baffle plate which is arranged outside the inverter hole and can cover the inverter hole.

Preferably, the baffle is annular and is rotatably sleeved on the cover body.

Preferably, the device further comprises a handle which is connected to the outer side of the baffle and is used for adjusting the position of the baffle.

Preferably, the baffle is provided with a plurality of sound adjusting holes arranged at intervals, and the diameter of each sound adjusting hole is smaller than or equal to that of the phase reversal hole.

Preferably, the cover further comprises a limiting mechanism which is arranged between the cover body and the baffle and used for limiting the baffle.

Preferably, the limiting mechanism comprises a groove arranged on the outer side of the cover body, a limiting block connected to the groove in a sliding manner, and a spring with two ends respectively connected with the bottom of the groove and the limiting block.

Preferably, the baffle is provided with a plurality of limiting holes for limiting the limiting mechanism.

Preferably, the cover body is provided with an inverted upper hole having the same diameter as the inverted upper hole at the top end.

Preferably, the device further comprises a sealing cover capable of closing the upper inverter hole, and the sealing cover is arranged on the upper inverter hole.

The utility model discloses following beneficial effect has:

1) the utility model can adjust the sound emitting direction of the phase reversal hole by rotating the cover body, when a user places a sound box against the wall, the user does not need to worry about the influence of the wall blocking on the sound emitting effect, and the realization of the low frequency effect enhancement is ensured; in addition, the sound emitting direction of the inverter holes can be adjusted to face towards a listener, and the auditory experience is improved.

2) When the sound box is idle for a long time and is not used, the inverter holes can be covered by adjusting the position of the baffle plate, so that dust or moist air is prevented from entering the inside of the sound box, and electronic devices in the sound box are protected.

3) Set up a plurality of tuning holes on the baffle, and the diameter of tuning hole all is less than or equal to the diameter in paraphase hole, through adjusting the baffle position, to tuning hole and the coincidence of paraphase hole center, can change the play sound aperture size in paraphase hole, demonstrate different tone quality effects.

Drawings

Fig. 1 is a schematic diagram of the internal structure of the phase inversion speaker of the present invention.

Fig. 2 is a schematic diagram of an external structure of the phase inversion speaker of the present invention.

Fig. 3 is a schematic view of a local structure of the phase inversion speaker of the present invention.

Description of the drawings: the loudspeaker comprises a cover body 1, a base 2, an inverter hole 3, a loudspeaker 4, an inverter tube 5, a baffle 6, a handle 7, a sound adjusting hole 8, a limiting mechanism 9, a limiting hole 10, an upper inverter hole 11 and a sealing cover 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides an embodiment: the utility model provides a phase inversion audio amplifier, is including the shell that is equipped with the cavity and locate the loudspeaker 4 in the cavity, the shell is including lid 1 and the base 2 that rotate the connection, lid 1 is opened at the lateral wall has phase inversion hole 3, still includes in the cavity and can dismantle phase inversion pipe 5 of connecting in phase inversion hole 3.

The utility model can adjust the sound emitting direction of the phase reversal hole 3 by rotating the cover body 1, when a user puts a sound box against the wall, the user does not need to worry about the influence of the wall blocking on the sound emitting effect, and the realization of the low frequency effect enhancement is ensured; in addition, the sound emission direction of the inverter hole 3 can be adjusted to face the listener, and the auditory experience can be improved.

In the present embodiment, it is preferable to further include a shutter 6 provided outside the inverter hole 3 and capable of covering the inverter hole 3. When the sound box is idle for a long time and is not used, the position of the baffle 6 is adjusted to cover the phase reversal hole 3, so that dust or moist air is prevented from entering the inside of the sound box, and electronic devices in the sound box are protected.

In this embodiment, preferably, the baffle 6 is annular and is rotatably sleeved on the cover 1. The baffle 6 with the annular structure can leave more expansion spaces on the baffle 6, better realize rotation switching and is more attractive in appearance.

In the present embodiment, it is preferable that a handle 7 is further included, which is connected to the outside of the barrier 6 and adjusts the position of the barrier 6. The user holds the handle 7 to push, and the position of the baffle 6 can be adjusted, so that the operation is more convenient.

In the present embodiment, preferably, the baffle 6 is provided with a plurality of tuning holes 8 arranged at intervals, and the diameter of the tuning hole 8 is smaller than or equal to the diameter of the inverter hole 3. Set up a plurality of tuning holes 8 on baffle 6, and the diameter of tuning hole 8 all is less than or equal to the diameter of paraphase hole 3, through adjusting baffle 6 position, to tuning hole 8 and the central coincidence of paraphase hole 3, can change the play sound aperture size of paraphase hole 3, demonstrate different tone quality effects. For example: the diameter of one sound adjusting hole 8 is the same as that of the inverter hole 3, and the inverter hole 3 emits sound with a hole diameter of a normal size; when the diameters of the remaining tuning holes 8 are different from each other and smaller than the diameter of the inverter hole 3, the inverter hole 3 emits sound with different diameters.

In this embodiment, it is preferable that the cover further includes a limiting mechanism 9 provided between the cover 1 and the baffle 6 and limiting the baffle 6.

In this embodiment, as preferred, stop gear 9 is including offering in the recess in the lid 1 outside, sliding connection in the stopper of recess, both ends connect the spring of recess bottom and stopper respectively. Set up stop gear 9 between lid 1 and baffle 6, can carry on spacingly to baffle 6, when the position control is made at rotating baffle 6, it is more convenient to operate, and the location is more accurate.

In this embodiment, preferably, the baffle 6 is provided with a plurality of limiting holes 10 for limiting by the limiting mechanism 9. The baffle 6 is provided with a limiting hole 10 corresponding to the limiting mechanism 9, and when the baffle 6 is rotated to adjust the position, the limiting mechanism 9 enters the limiting hole 10, so that the accuracy of position adjustment can be improved.

In this embodiment, the cover 1 preferably has an upper inverter hole 13 having the same diameter as the inverter hole 3 at the tip end. When the cover 1 is rotated, the inverter hole 3 rotates following the cover 1, and the sound emitting direction of the inverter hole 3 can be adjusted in a plane, but sound cannot be emitted from the top end of the speaker. The top end of the cover body 1 is provided with an upper phase reversal hole 13 with the same diameter as the phase reversal hole 3, when sound is required to be emitted from the top end direction of the sound box, the phase reversal pipe 5 is detached and sleeved in the upper phase reversal hole 13, and the position of the adjusting baffle 6 covers and seals the original phase reversal hole 3, so that the technical problem can be solved.

In the present embodiment, it is preferable that a seal cap 12 capable of closing the upper inverter hole 13 is further provided, and the seal cap 12 is provided to cover the upper inverter hole 13. When the upper inverter hole 13 is not needed, the sealing cover 12 is covered on the upper inverter hole 13, so that the upper inverter hole can be sealed, dust or moist air is prevented from entering the interior of the sound box, and electronic devices in the sound box are protected.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.

Claims

1. The utility model provides a paraphase audio amplifier, includes the shell that is equipped with the cavity and locates the loudspeaker in the cavity, its characterized in that: the shell comprises a cover body and a base which are connected in a rotating mode, wherein the side wall of the cover body is provided with an inverter hole, and the shell also comprises an inverter tube which is arranged in the cavity and is detachably connected with the inverter hole.

2. A phase inversion speaker as claimed in claim 1, wherein: the inverter circuit further comprises a baffle plate which is arranged outside the inverter hole and can cover the inverter hole.

3. A phase inversion speaker as claimed in claim 2, wherein: the baffle is annular and is rotatably sleeved on the cover body.

4. A phase inversion speaker as claimed in claim 2, wherein: the handle is connected to the outer side of the baffle and used for adjusting the position of the baffle.

5. A phase inversion speaker as claimed in claim 2, wherein: the baffle is provided with a plurality of sound adjusting holes which are arranged at intervals, and the diameters of the sound adjusting holes are smaller than or equal to the diameters of the phase reversal holes.

6. A phase inversion speaker as claimed in claim 2, wherein: the cover further comprises a limiting mechanism which is arranged between the cover body and the baffle and used for limiting the baffle.

7. A phase inversion speaker as claimed in claim 6, wherein: the limiting mechanism comprises a groove arranged on the outer side of the cover body, a limiting block connected to the groove in a sliding mode, and a spring with two ends respectively connected with the bottom of the groove and the limiting block.

8. A phase inversion speaker as claimed in claim 6, wherein: the baffle is provided with a plurality of limiting holes for limiting the limiting mechanism.

9. A phase inversion speaker as claimed in claim 1, wherein: the top end of the cover body is provided with an upper inverter hole with the same diameter as the inverter hole.

10. A phase inversion speaker as claimed in claim 9, wherein: the device also comprises a sealing cover capable of closing the upper inverter hole, and the sealing cover is arranged on the upper inverter hole.