CN212936118U - Phase reversal type sound box - Google Patents

Abstract

The utility model discloses a phase inversion formula audio amplifier, including sound chamber shell, screen panel and at least one speaker, be provided with the speaker mounting hole on the sound chamber shell, the speaker sets up in the speaker mounting hole, the screen panel is equipped with a plurality of bleeder vents, the screen panel cover is located one side of sound chamber shell, be equipped with the venthole on the sound chamber shell, the screen panel covers the venthole, the medial surface of screen panel with form the paraphase pipe between the lateral surface of sound chamber shell, through the mode of arranging the paraphase pipe in the sound chamber shell outside, be favorable to ensureing the effective volume in sound chamber, ensure the low frequency effect of audio amplifier.

Description

Phase reversal type sound box

Technical Field

The utility model relates to a sound box product, in particular to phase inversion formula audio amplifier.

Background

The phase inversion tube of the prior general phase inversion type sound box is generally arranged inside the sound cavity, however, the effective volume of the sound cavity can be reduced by the way that the phase inversion tube is arranged inside the sound cavity, and the reduction of the effective volume of the sound cavity can cause poor low-frequency response of the sound box.

Thus, the prior art has yet to be improved and enhanced.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a phase inversion type speaker capable of providing an effective volume of a sound cavity.

For solving the technical problem, the utility model discloses following technical scheme has been taken:

the utility model provides a phase inversion formula audio amplifier, includes sound chamber shell, screen panel and at least one speaker, be provided with the speaker mounting hole on the sound chamber shell, the speaker sets up in the speaker mounting hole, the screen panel is equipped with a plurality of bleeder vents, the screen panel cover is located one side of sound chamber shell, be equipped with the venthole on the sound chamber shell, the screen panel covers the venthole, the medial surface of screen panel with form the paraphase pipe between the lateral surface of sound chamber shell.

As an improvement of the utility model, the phase inversion formula audio amplifier, still include the screen cloth, the screen cloth wrap up in on the screen cloth.

As the improvement of the utility model, the sound cavity shell includes the tubulose casing and the sealed shell of sound cavity, the sealed shell of sound cavity sets up in the both ends of tubulose casing.

As the utility model discloses an improvement, sound chamber sealed shell including set up in the sound chamber sealed decoration of tubulose casing one end, set up in the sound chamber sealing member and the sound chamber decoration of the tubulose casing other end, the sound chamber decoration is located the outside of sound chamber sealing member.

As a further improvement of the utility model, the speaker mounting hole includes first speaker mounting hole, the neighbouring first speaker mounting hole setting of venthole, phase reversal formula audio amplifier still includes first paraphase pipe sealing member, first paraphase pipe sealing member is located between audio amplifier shell and the screen panel, and is located between venthole and the first speaker mounting hole, the one end of the sealed paraphase pipe of first paraphase pipe sealing member.

As a further improvement of the utility model, the speaker mounting hole includes the second speaker mounting hole, phase inversion formula audio amplifier still includes the second inverter tube sealing member, the second inverter tube sealing member is located between audio amplifier shell and the screen panel, and the setting of neighbouring second speaker mounting hole, the other end of the sealed inverter tube of second inverter tube sealing member.

As a further improvement of the present invention, the phase inversion type speaker further includes two third phase inversion tube sealing members, the third phase inversion tube sealing members are located between the speaker housing and the mesh enclosure, and the third phase inversion tube sealing members seal the two sides of the phase inversion tube.

As a further improvement of the utility model, the air holes comprise a speaker air hole and an inverter tube air hole.

As the utility model discloses further improvement again, the phase inversion formula audio amplifier, still including the control mainboard, be provided with input socket and output socket on the control mainboard.

As a further improvement of the present invention, the control board is disposed on the right side of the sound cavity housing, and the insertion portions of the input socket and the output socket are exposed outside the sound cavity housing.

Compared with the prior art, the utility model provides a pair of phase inversion formula audio amplifier, including sound chamber shell, screen panel and an at least speaker, be provided with the speaker mounting hole on the sound chamber shell, the speaker sets up in the speaker mounting hole, the screen panel is equipped with a plurality of bleeder vents, the screen panel cover is located one side of sound chamber shell, be equipped with the venthole on the sound chamber shell, the screen panel covers the venthole, the medial surface of screen panel with form the paraphase pipe between the lateral surface of sound chamber shell, through the mode of arranging the paraphase pipe in the sound chamber shell outside, be favorable to ensureing the effective volume in sound chamber, ensure the low frequency effect of audio amplifier.

Drawings

Fig. 1 is a schematic structural diagram of the phase inversion type sound box provided by the present invention.

Fig. 2 is a schematic structural view of the sound cavity housing of the inverted phase type sound box provided by the present invention.

Fig. 3 is a schematic structural view of the loudspeaker installed on the sound cavity casing of the phase inversion type sound box provided by the present invention.

Fig. 4 is a schematic structural view of the inverted-phase sound box provided with the mesh cloth.

Fig. 5 is a schematic view of the longitudinal cutting structure of the inverted-phase sound box provided by the present invention.

Fig. 6 is a schematic diagram of a transverse sectioning structure of the inverted-phase sound box provided by the present invention.

Fig. 7 is a schematic structural diagram of the mesh enclosure of the inverted phase type sound box according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a phase inversion type sound box, which includes a sound cavity housing 1, a mesh enclosure 2 and at least one speaker 3, wherein the sound cavity housing 1 is provided with a speaker 3 mounting hole (hereinafter, a first speaker mounting hole 11 and a second speaker mounting hole 1212), the speaker 3 mounting hole is circular, and the speaker 3 is disposed in the speaker 3 mounting hole.

In this embodiment, the mesh enclosure 2 is provided with a plurality of air holes 21, the air holes 21 include speaker air holes and inverter air holes, and the air holes 21 are circular or rectangular and arranged in a rectangular array for transmitting the sound emitted by the speaker 3. The guard 2 covers and locates one side of sound chamber shell 1, be equipped with venthole 13 on the sound chamber shell 1, venthole 13 is rectangle, and length is close to the width of sound chamber shell 1 one side, guard 2 covers venthole 13, guard 2's medial surface with form phase reversal pipe 10 between the lateral surface of sound chamber shell 1, through the mode of arranging phase reversal pipe 10 in the sound chamber shell 1 outside, be favorable to ensureing the effective volume in sound chamber, ensure the low frequency effect of audio amplifier.

Please refer to fig. 4, the phase inversion type speaker of the present invention further includes a mesh 4, the mesh 4 is wrapped on the mesh cover 2, and the mesh 4 is filled with air permeable pores, so as to achieve the dustproof effect while transmitting sound.

Preferably, the mesh 4 is fixed on the sound cavity housing 1 by a pressing strip (not numbered in the figure) to facilitate the installation and the removal of the mesh 4, so as to facilitate the cleaning of the mesh 4.

Referring to fig. 5, the sound cavity housing 1 includes a tubular housing 15 and sound cavity sealing housings 16, wherein the sound cavity sealing housings 16 are disposed at two ends of the tubular housing 15 for sealing the tubular housing 15. The cross section of the tubular shell 15 is in a round-corner rectangle shape, and the whole tubular shell 15 is in a strip shape, so that the appearance is attractive and simple.

In a specific embodiment, the sound cavity sealing case 16 includes a sound cavity sealing decoration 161, a sound cavity sealing part 162 and a sound cavity decoration 163, the sound cavity sealing decoration 161 is disposed at one end of the tubular case 15, the sound cavity sealing part 162 and the sound cavity decoration 163 are disposed at the other end of the tubular case 15, the sound cavity decoration 163 is located outside the sound cavity sealing part 162, both ends of the sound cavity case 1 are sealed by the sound cavity sealing decoration 161 and the sound cavity sealing part 162, the air flow of the sound cavity enters the inverter tube 10 from the air outlet 13, and the inverter tube 10 superposes the low-frequency positive wave and the low-frequency negative wave to increase the bass intensity.

Referring to fig. 1 to 5, the mounting holes of the speaker 3 include a first speaker mounting hole 11, and the air outlet 13 is disposed adjacent to the first speaker mounting hole 11, that is, the air outlet 13 is disposed close to the first speaker mounting hole 11, for example, the air outlet 13 is 1 CM to 10CM away from the first speaker mounting hole 11.

The phase inversion type sound box further includes a first inverter tube sealing member 17, the first inverter tube sealing member 17 being located between the cavity case 1 and the mesh enclosure 2 and between the air outlet hole 13 and the first speaker mounting hole 11, the first inverter tube sealing member 17 sealing one end of the inverter tube 10.

Optionally, the speaker 3 mounting hole includes a second speaker mounting hole 1212, and the inverter type sound box further includes a second inverter tube sealing member 18, where the second inverter tube sealing member 18 is located between the sound cavity case 1 and the mesh enclosure 2 and adjacent to the second speaker mounting hole 1212, that is, the second inverter tube sealing member 18 is located close to the second speaker mounting hole 1212, and if the second inverter tube sealing member 18 is located at a distance of 1 CM to 10CM from the second speaker mounting hole 1212, the second inverter tube sealing member 18 is used to seal the other end of the inverter tube 10.

Preferably, the first inverter tube seal 17 and the second inverter tube seal 18 are located as close to the two ends of the tubular housing 15 as possible, so as to maximize the length of the inverter tube 10 and ensure the best low frequency sound effect. Referring to fig. 6 and 7, the phase inversion type speaker of the present invention further includes two third inverter tube sealing members 19, wherein the third inverter tube sealing members 19 are located between the speaker enclosure 1 and the mesh enclosure 2, the third inverter tube sealing members 19 seal both sides of the inverter tube 10, and the inverter tube 10 is sealed around by the first inverter tube sealing members 17, the second inverter tube sealing members 18, and the third inverter tube sealing members 19, which is beneficial to enhancing the low frequency sound effect.

As shown in fig. 6 and 7, the cross section of the phase inversion tube 10 is slightly arc-shaped, that is, the mesh enclosure 2 is arc-shaped, which is beneficial to reflection and superposition of low-frequency positive-phase waves and reverse-phase waves of the sound box and increase of low-frequency sound effect.

Further, the utility model discloses a phase inversion formula audio amplifier still includes the control mainboard, be provided with input socket 51 and output socket 52 on the control mainboard. The control main board is disposed on the right side of the sound cavity housing 1, and the plugging portions of the input socket 51 and the output socket 52 are both exposed outside the sound cavity housing 1 for connection.

To sum up, the utility model provides a pair of phase inversion formula audio amplifier through the mode of arranging phase inversion pipe 10 in the 1 outside of audio cavity shell, is favorable to ensureing the effective volume in audio cavity, ensures the low frequency effect of audio amplifier. And, the first inverter tube 10 sealing member, the second inverter tube 10 sealing member are close to both ends of the tubular shell as much as possible, make the length of the inverter tube 10 maximize, and adopt the inverter tube 10 sealing member to seal between screen panel 2 and tubular shell, form the inverter tube 10, help to strengthen the low frequency sound effect.

Furthermore, the utility model discloses a phase inversion formula audio amplifier, compact structure, the space utilization maximize, its outward appearance is pleasing to the eye, succinct.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims (10)

1. The utility model provides a phase inversion formula audio amplifier, includes sound chamber shell, screen panel and at least one speaker, be provided with the speaker mounting hole on the sound chamber shell, the speaker sets up in the speaker mounting hole, the screen panel is equipped with a plurality of bleeder vents, the screen panel cover is located one side of sound chamber shell, its characterized in that, be equipped with the venthole on the sound chamber shell, the screen panel covers the venthole, form the inverter tube between the medial surface of screen panel and the lateral surface of sound chamber shell.

2. The sound box of claim 1, further comprising a mesh cloth, wherein the mesh cloth is wrapped around the mesh cover.

3. The sound box of claim 1, wherein the sound enclosure comprises a tubular housing and sound enclosure enclosures disposed at opposite ends of the tubular housing.

4. The phase inversion type loudspeaker according to claim 3, wherein the sound chamber enclosure comprises a sound chamber enclosure decorative member provided at one end of the tubular casing, a sound chamber sealing member provided at the other end of the tubular casing, and a sound chamber decorative member provided outside the sound chamber sealing member.

5. A sound box according to claim 1 or 2, wherein the speaker mounting holes comprise a first speaker mounting hole and the outlet hole is provided adjacent to the first speaker mounting hole, the sound box further comprising a first inverter tube seal between the chamber cover and the mesh enclosure and between the outlet hole and the first speaker mounting hole, the first inverter tube seal sealing one end of the inverter tube.

6. A phase inversion enclosure as claimed in claim 5, wherein the speaker mounting holes comprise a second speaker mounting hole, the phase inversion enclosure further comprising a second inverter tube seal located between the chamber enclosure and the mesh enclosure and disposed adjacent the second speaker mounting hole, the second inverter tube seal sealing the other end of the inverter tube.

7. The sound box of claim 6, further comprising two third inverter tube seals, said third inverter tube seals located between the chamber shell and the mesh enclosure, said third inverter tube seals sealing both sides of the inverter tube.

8. A sound box according to claim 1, characterised in that said vents comprise speaker vents and inverter duct vents.

9. The sound box of claim 1, further comprising a control board, wherein the control board has an input socket and an output socket.

10. The sound box of claim 9, wherein the control board is disposed on a right side of the sound cavity housing, and the insertion portions of the input socket and the output socket are exposed outside the sound cavity housing.

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