CN210469661U

CN210469661U - Portable sound box

Info

Publication number: CN210469661U
Application number: CN201922199426.5U
Authority: CN
Inventors: 余业祺
Original assignee: New Zeyu Audio Technology Co ltd
Current assignee: New Zeyu Audio Technology Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-05-05
Anticipated expiration: 2029-12-10

Abstract

The utility model provides a portable sound box, including box, digital signal processor, subwoofer, left sound channel loudspeaker, right sound channel loudspeaker, two passive radiators and baffle, the box is located left sound channel loudspeaker department is formed with first closed chamber, the box is located right sound channel loudspeaker department is formed with the second closed chamber. Above-mentioned portable audio amplifier, it effectively reduces the sound interference problem to increase the washer, make the subwoofer, left sound channel loudspeaker, the sound phase between the right sound channel loudspeaker coincide better, wherein, the middle and high frequency left/right sound channel of audio amplifier is totally by the independent high-effect vocal production of left sound channel loudspeaker and right sound channel loudspeaker, the intermediate frequency, the well low frequency is passed through the box vocal production by the subwoofer, make the sound pressure totally interfere the vibrations that can not reach left sound channel loudspeaker and right sound channel loudspeaker, and accomplish by passive radiator below the ultralow 100Hz, ultra-thin audio amplifier cavity has been formed and has been reduced high sound pressure, and is high-power, the low distortion, the design that.

Description

Portable sound box

Technical Field

The utility model relates to a audio amplifier technical field, in particular to portable audio amplifier.

Background

With the development of science and technology, sound box products are displayed in the direction that the size is smaller and the volume is thinner; the small size portable type becomes a development trend, and the thickness of the sound box becomes a bottleneck of sound box development.

The problem that the high-power, large-sound-pressure, low-distortion and low-sound restoring ultrathin sound box structure is difficult to overcome from the past is solved; sound interference and internal airflow interference between the two parts cause that the lower limit frequency ranges of sound pressure, distortion degree and bass are difficult to achieve better solutions.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a portable audio amplifier to sound between the loudspeaker of solving current audio amplifier can the problem of mutual interference.

The utility model provides a portable sound box, digital signal processor in including the box with locating the box, portable sound box is still including locating subwoofer, the symmetry at box middle part are located the left channel loudspeaker and the right channel loudspeaker, the symmetry of subwoofer left and right sides are located two passive radiator in the box, and locate the baffle at subwoofer edge, the box is located left channel loudspeaker department is formed with first closed chamber, the box is located right channel loudspeaker department is formed with the second closed chamber.

Above-mentioned portable audio amplifier, it effectively reduces the acoustic interference problem to increase the washer, make the subwoofer, left sound channel loudspeaker, the sound phase between the right sound channel loudspeaker coincide better, wherein, the middle and high frequency left/right sound channel of audio amplifier is totally by the independent high-effect vocal production of left sound channel loudspeaker and right sound channel loudspeaker, the intermediate frequency, the well low frequency is passed through the box vocal production by the subwoofer, make the acoustic pressure totally interfere the vibrations that can not reach left sound channel loudspeaker and right sound channel loudspeaker, and accomplish by passive radiator below the ultralow 100Hz, the design that ultra-thin audio amplifier cavity restores high acoustic pressure, high-power, the low distortion, the low frequency degree of restoration is low.

Further, the left channel loudspeaker is obliquely arranged towards the left side of the box body.

Further, the inclination angles of the left channel horns are all 3 °.

Further, the right channel loudspeaker is obliquely arranged towards the right side of the box body.

Further, the inclination angle of the right channel horn is 3 °.

Furthermore, the left sound channel loudspeaker comprises a first shell and a first sealing convex edge arranged on the edge of the first shell, and the first sealing convex edge, the baffle and the box body jointly form the first closed cavity.

Furthermore, the right channel loudspeaker comprises a second shell and a second sealing convex edge arranged on the edge of the second shell, and the second sealing convex edge, the baffle and the box body jointly form the second closed cavity.

Drawings

Fig. 1 is a front view of a portable sound box in an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure view of the portable sound box in fig. 1;

FIG. 3 is a schematic diagram of the acoustic vibration of the subwoofer of the portable sound box of FIG. 1;

FIG. 4 is a front view of a left channel speaker of the portable sound box of FIG. 1;

fig. 5 is a side view of the left channel speaker of fig. 1.

Description of the main element symbols:

box body	10	Left sound track loudspeaker	30	Passive radiator	50
						A first closed chamber	11	First shell	31	Baffle plate	60
Second closed cavity	12	First sealing convex edge	32
						Bass speaker	20	Right track loudspeaker	40

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" 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. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, an embodiment of the present invention provides a portable sound box, including a box body 10, a digital signal processor (not shown) disposed in the box body 10, a subwoofer 20 disposed in the middle of the box body 10, a left channel speaker 30 and a right channel speaker 40 symmetrically disposed on the left and right sides of the subwoofer 20, two passive radiators 50 symmetrically disposed in the box body 10, and a baffle 60 disposed on the edge of the subwoofer 20, wherein the box body 10 is located at the left channel speaker 30 and is formed with a first closed cavity 11, and the box body 10 is located at the right channel speaker 40 and is formed with a second closed cavity 12.

Above-mentioned portable audio amplifier, it interferes the problem effectively to reduce the sound to increase the baffle 60, make the sound phase between subwoofer 20, left channel loudspeaker 30, right channel loudspeaker 40 coincide better, wherein, the middle and high frequency left/right channel of audio amplifier is by left channel loudspeaker 30 and the independent high-effect sound production of right channel loudspeaker 40 completely, the intermediate frequency, the middle and low frequency is by subwoofer 20 through the sound production of box 10, make the sound pressure totally interfere not to the vibrations of left channel loudspeaker 30 and right channel loudspeaker 40, and the ultra-low 100Hz is accomplished by passive radiator 50 below, the design that ultra-thin audio amplifier cavity restores high sound pressure, high power, low distortion, the low frequency reduction degree is low has been formed.

Specifically, in this embodiment, the left channel speaker 30 is disposed to be inclined toward the left side of the cabinet 10, and the inclination angles of the left channel speaker 30 are all 3 °. The right channel horn 40 is inclined toward the right side of the cabinet 10, and the inclination angle of the right channel horn 40 is 3 °. By inclining the left channel speaker 30 to the left and the right channel speaker 40 to the right, the radiation range and the penetrating power of the middle frequency can be effectively increased.

Specifically, in this embodiment, the left channel speaker 30 includes a first shell 31 and a first sealing flange 32 disposed on an edge of the first shell 31, and the first sealing flange 32, the baffle 60 and the cabinet 10 together form the first closed cavity 11.

Specifically, in this embodiment, the right channel speaker 40 includes a second shell (not shown) and a second sealing flange (not shown) provided at an edge of the second shell, and the second sealing flange, the baffle 60 and the cabinet 10 together form the second closed cavity 12.

It should be noted that in the implementation, subwoofer 20 is not limited to a single horn or a dual horn; the left channel speaker 30 and the right channel speaker 40 are not limited to being stereo or mono; the left channel speaker 30 and the right channel speaker 40 are not limited to forming a sealed chamber with the cabinet 10 or providing a corresponding sealed chamber structure.

Specifically, the passive radiator 50 is not limited to being provided at the front end or the rear end of the cabinet 10.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a portable sound box, includes the box and locates the digital signal processor in the box, a serial communication port, portable sound box is still including locating subwoofer, the symmetry at box middle part are located the left sound channel loudspeaker and the right sound channel loudspeaker, the symmetry of subwoofer left and right sides are located two passive radiator in the box, and locate the baffle at subwoofer edge, the box is located left sound channel loudspeaker department is formed with first closed chamber, the box is located right sound channel loudspeaker department is formed with the second closed chamber.

2. The portable sound box according to claim 1, wherein the left channel speaker is disposed obliquely toward a left side of the box body.

3. The portable sound box according to claim 2, wherein the left channel speakers are each inclined at an angle of 3 °.

4. The portable sound box according to claim 1, wherein the right channel speaker is disposed to be inclined toward a right side of the cabinet.

5. The portable sound box according to claim 4, wherein the right channel speaker is inclined at an angle of 3 °.

6. The portable sound box according to claim 1, wherein the left channel speaker comprises a first housing and a first sealing flange provided at an edge of the first housing, and the first sealing flange, the baffle and the box body together form the first closed cavity.

7. The portable sound box according to claim 1, wherein the right channel speaker comprises a second housing and a second sealing flange provided at an edge of the second housing, and the second sealing flange, the baffle and the box body together form the second closed cavity.