CN107465978B

CN107465978B - Loudspeaker capable of enhancing bass sound effect and related electronic device

Info

Publication number: CN107465978B
Application number: CN201610383750.0A
Authority: CN
Inventors: 刘峰铭; 张嘉仁; 黄志学; 陈建仲
Original assignee: Acer Inc
Current assignee: Acer Inc
Priority date: 2016-06-02
Filing date: 2016-06-02
Publication date: 2020-04-07
Anticipated expiration: 2036-06-02
Also published as: CN107465978A

Abstract

A speaker device comprises a first speaker housing, a speaker unit, a second speaker housing and a duct housing, the first sound box shell is arranged in a device shell, a first cavity is formed in the first sound box shell, the loudspeaker unit is arranged in the first cavity, the second sound box shell is connected with the device shell and provided with a sound outlet opening, a second cavity communicated with the sound outlet opening is formed in the second sound box shell, the conduit shell is connected with the first sound box shell and the second sound box shell, a conduit chamber communicating the first chamber and the second chamber is formed in the conduit housing, wherein a sound wave emitted by the horn unit is pressurized by the first chamber and transmitted to the second chamber through the conduit chamber, and then emitted from the sound outlet opening.

Description

Loudspeaker capable of enhancing bass sound effect and related electronic device

Technical Field

The present invention relates to a speaker device and a related electronic device, and more particularly, to a speaker device and a related electronic device capable of enhancing bass sound effect.

Background

With the development of technology and the improvement of life, portable electronic devices (such as mobile phones, tablet computers, etc.) are meeting the work requirements of people, and are also being applied to the game industry more and more recently, such as a tablet computer for electronic games. Generally, the volume of a competitive tablet computer is limited to a certain extent so that a user can use the competitive tablet computer in a hand-held manner. However, the volume limitation of the tablet pc further limits the design of the speaker and the sound box, so that the bass sound effect and the sound field of the tablet pc do not have a certain effect, and the audio-visual feeling of the user during the game is reduced.

Disclosure of Invention

Therefore, the present invention provides a speaker device and related electronic device capable of enhancing bass sound effect to solve the above problems.

In order to achieve the above object, the present invention discloses a speaker device installed in a device housing of an electronic device, the speaker device includes a first speaker housing, a speaker unit, a second speaker housing and a duct housing, the first speaker housing is disposed in the device housing, a first cavity is formed in the first speaker housing, the speaker unit is disposed in the first cavity, the speaker unit is used for emitting a sound wave, the second speaker housing is connected to the device housing and has a sound outlet opening, a second cavity is formed in the second speaker housing and is communicated with the sound outlet opening, the duct housing is connected to the first speaker housing and the second speaker housing, a duct cavity is formed in the duct housing and is communicated with the first cavity and the second cavity, wherein the sound wave emitted by the horn unit is pressurized by the first chamber and transmitted to the second chamber through the conduit chamber, and then emitted from the sound outlet opening.

According to one embodiment of the present invention, the duct housing has an inlet and an outlet, the inlet and the outlet are respectively disposed at two opposite ends of the duct housing, the first chamber is communicated with the duct chamber through the inlet, the duct chamber is communicated with the second chamber through the outlet, and the area of the inlet is equal to the area of the outlet.

According to one embodiment of the present invention, the second sound box housing has a sound wave blocking piece, and the sound wave blocking piece protrudes from one side of the second sound box housing and is used to define the sound outlet opening, so that the area of the sound outlet opening is between 1.5 times and 100 times of the area of the outlet.

According to one embodiment of the invention, the acoustic baffle is perpendicular to the normal of the outlet.

According to one embodiment of the invention, the volume of the second chamber is less than half the volume of the first chamber or the volume of the second chamber is less than one third of the volume of the first chamber.

According to one embodiment of the present invention, the first cabinet housing has a side wall parallel to a side edge portion of the device housing and a top wall connected to the side wall, the top wall being parallel to a front case of the device housing, the duct housing being connected to the side wall, wherein the sound outlet opening is formed on the side edge portion.

According to one embodiment of the present invention, the speaker device further includes a resonant housing coupled to the side wall and configured to carry the speaker unit, and the resonant housing, the side wall and the top wall together define the first cavity.

According to one embodiment of the present invention, the speaker device further includes a resonant housing coupled to the first speaker housing and configured to support the speaker unit, and the resonant housing and the first speaker housing together define the first cavity.

According to one embodiment of the present invention, a resonance chamber is formed in the resonance housing, and the horn unit emits the sound wave by using the resonance chamber.

In order to achieve the above object, the present invention further discloses an electronic device, which includes a device housing and a speaker device, wherein the speaker device is installed in the device housing and includes a first speaker housing, a speaker unit, a second speaker housing and a duct housing, the first speaker housing is disposed in the device housing, a first chamber is formed in the first speaker housing, the speaker unit is disposed in the first chamber, the speaker unit is configured to emit a sound wave, the second speaker housing is connected to the device housing and is provided with a sound outlet, a second chamber is formed in the second speaker housing and is communicated with the sound outlet, the duct housing is connected to the first speaker housing and the second speaker housing, and a duct chamber is formed in the duct housing and is communicated with the first chamber and the second chamber, wherein the sound wave emitted by the horn unit is pressurized by the first chamber and transmitted to the second chamber through the conduit chamber, and then emitted from the sound outlet opening.

In summary, the present invention utilizes the first speaker housing, the second speaker housing, the duct housing, and the structural design that the area of the inlet is equal to the area of the outlet, the volume of the sound wave blocking piece and the second chamber is less than half of the volume of the first chamber, or the volume of the second chamber is less than one third of the volume of the first chamber, so that the speaker device can not only increase the sound effect in the bass section, but also maintain the sound effect in the bass section, so that the bass sound effect and the sound field of the electronic device can exhibit certain effects, thereby enhancing the audio-visual experience of the user when in use. The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings.

Drawings

Fig. 1 is a schematic front view of an electronic device according to an embodiment of the invention.

Fig. 2 is a rear view of an electronic device according to an embodiment of the invention.

Fig. 3 is a schematic view of a speaker device according to an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of the speaker device shown in fig. 3 along the sectional line X-X.

Fig. 5 is a cross-sectional view of the speaker device shown in fig. 3 along the section line Y-Y.

Fig. 6 is a schematic diagram of a first frequency curve of a speaker apparatus without a second enclosure housing and a duct housing and a second frequency curve of the speaker apparatus with the second enclosure housing and the duct housing according to an embodiment of the present invention.

Wherein the reference numerals are as follows:

1000 electronic device

1 device case

10 front case

11 rear shell

12 side edge part

2 loudspeaking device

20 first sound box shell

201 first chamber

2010 volume

202 side wall

203 top wall

21 horn unit

22 second sound box shell

220 sound outlet opening

2201 area

221 second chamber

2210 volume

222 sound wave baffle

23 duct housing

230 catheter lumen

231 inlet

2310 area

232 outlet

2320 area

2321 Normal

24 resonance shell

240 resonant cavity

3 touch control display panel

4 sound wave

C1 first frequency curve

Second frequency curve of C2

Section line X-X, Y-Y

Detailed Description

Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are directions with reference to the attached drawings only. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting. Referring to fig. 1 and fig. 2, fig. 1 is a front view of an electronic device 1000 according to an embodiment of the invention, and fig. 2 is a rear view of the electronic device 1000 according to the embodiment of the invention. As shown in fig. 1 and 2, the electronic device 1000 includes a device housing 1 and a speaker device 2, and the speaker device 2 is mounted in the device housing 1, so that the device housing 1 can protect the speaker device 2 from being damaged by external impact. In this embodiment, the electronic device 1000 may be a tablet computer for electronic contests, but the invention is not limited thereto, for example, the electronic device 1000 may also be a notebook computer, an integrated desktop (All In One) computer, a two-In-One (2In 1) tablet computer, or the like. In addition, the device housing 1 may include a front housing 10 and a rear housing 11, the front housing 10 and the rear housing 11 are assembled with each other, and the front housing 10 may be used to carry a touch display panel 3, so that a user can execute a touch operation command through the touch display panel 3. In this embodiment, the speaker 2 may be located in the accommodating space formed by assembling the front housing 10 and the rear housing 11 and disposed on the rear housing 11, but the invention is not limited thereto.

Referring to fig. 1 to 5, fig. 3 is a schematic front view of a speaker device 2 according to an embodiment of the present invention, fig. 4 is a schematic cross-sectional view of the speaker device 2 shown in fig. 3 along a sectional line X-X, and fig. 5 is a schematic cross-sectional view of the speaker device 2 shown in fig. 3 along a sectional line Y-Y. As shown in fig. 1 to 5, the speaker device 2 includes a first enclosure 20, a speaker unit 21, a second enclosure 22, a duct enclosure 23 and a resonant enclosure 24, wherein the first enclosure 20 is disposed in the device housing 1. Further, the first speaker housing 20 has a side wall 202 and a top wall 203 connected to the side wall 202, the device housing 1 further has a side wall 12 (as shown in fig. 2), the side wall 12 connects the front housing 10 and the rear housing 11, the side wall 202 is parallel to the side wall 12, and the top wall 203 is parallel to the front housing 10. A first cavity 201 is formed in the first speaker housing 20, the speaker unit 21 is disposed in the first cavity 201 and is used for emitting a sound wave 4, the second speaker housing 22 is connected to the device housing 1 and has a sound outlet opening 220 formed on the device housing 1, a second cavity 221 communicating with the sound outlet opening 220 is formed in the second speaker housing 22, the duct housing 23 is connected to the first speaker housing 20 and the second speaker housing 22, and a duct cavity 230 communicating the first cavity 201 and the second cavity 221 is formed in the duct housing 23.

In this embodiment, the duct housing 23 may be connected to the side wall 202 of the first speaker housing 20, and the sound outlet opening 220 may be formed on the side portion 12 of the device housing 1, i.e., the duct housing 23 may extend from the side wall 202 of the first speaker housing 20 to the side portion 12 of the device housing 1. In addition, the resonant housing 24 is combined with the sidewall 202 of the first speaker housing 20 and is used for carrying the speaker unit 21, so that the speaker unit 21 can be located in the first cavity 201. In this embodiment, the resonant enclosure 24, the side walls 202 and the top wall 203 of the first enclosure may together define a first chamber 201. In addition, a resonant cavity 240 is formed in the resonant housing 24, when the speaker unit 21 is powered on, the sound wave 4 emitted by the speaker unit 21 can enter the first cavity 201 after resonating in the resonant cavity 240, that is, the speaker unit 21 utilizes the resonant cavity 240 to emit the sound wave 4 toward the first cavity 201.

Further, the duct housing 23 has an inlet 231 and an outlet 232, the inlet 231 and the outlet 232 are respectively disposed at two opposite ends of the duct housing 23, the first chamber 201 is communicated with the duct chamber 230 through the inlet 231, the duct chamber 230 is communicated with the second chamber 221 through the outlet 232, and an area 2310 of the inlet 231 is equal to an area 2320 of the outlet 232, that is, the size of the inlet 231 is equal to the size of the outlet 232. In addition, the second speaker housing 22 has a sound wave blocking piece 222, and the sound wave blocking piece 222 protrudes from one side of the second speaker housing 22 and extends toward the geometric center of the sound outlet opening 220 to limit the size of the sound outlet opening 220. In this embodiment, the sound wave blocking plate 222 of the second enclosure 22 defines the sound outlet opening 220, such that an area 2201 of the sound outlet opening 220 is between 1.5 times and 100 times of the area 2320 of the outlet 232. In this embodiment, the acoustic wave blocking plate 222 is perpendicular to a normal 2321 of the outlet 232, but the invention is not limited thereto, for example, the acoustic wave blocking plate 222 may also have an acute angle with the normal 2321 of the outlet 232, that is, the acoustic wave blocking plate 222 may not be perpendicular to the normal 2321 of the outlet 232, depending on the actual requirement. In this embodiment, a volume 2210 of the second chamber 221 may be smaller than a half of a volume 2010 of the first chamber 201, but the invention is not limited thereto, for example, the volume 2210 of the second chamber 221 may be smaller than a third of the volume 2010 of the first chamber 201, depending on the actual requirement. It should be noted that the duct housing 23 of the present invention is a straight structure, but the present invention is not limited thereto, for example, the duct housing 23 of the present invention is also a curved structure, depending on the actual requirement.

Referring to fig. 6, fig. 6 is a schematic diagram of a first frequency curve C1 of the speaker device 2 without the second speaker housing 22 and the duct housing 23 and a second frequency curve C2 of the speaker device 2 with the second speaker housing 22 and the duct housing 23 according to the embodiment of the present invention. As shown in fig. 6, when the speaker device 2 is not provided with the second enclosure 22 and the duct enclosure 23, the sound wave 4 emitted from the speaker unit 21 by the resonance chamber 240 and entering the first chamber 201 is directly emitted through the first enclosure 20, and the first frequency curve C1 corresponding to the sound wave 4 has a peak at about the resonance frequency (i.e., f0) of the speaker device 2. On the other hand, when the speaker device 2 is configured with the second enclosure 22 and the duct housing 23, the sound wave 4 emitted from the speaker unit 21 by the resonance chamber 240 and entering the first chamber 201 is pressurized by the first chamber 201 and transmitted to the second chamber 221 through the duct chamber 230, and then emitted from the sound outlet 220, at this time, the second frequency curve C2 corresponding to the sound wave 4 has a peak value about half of the resonance frequency of the speaker device 2 (i.e. f0/2), and the second frequency curve C2 is overlapped with the first frequency curve C1 in a section of frequency greater than the resonance frequency (i.e. f 0). In other words, the present invention can increase the sound effect of the low-pitched sound stage and maintain the sound effect of the high-pitched sound stage by the speaker device 2 by using the first enclosure housing 20, the second enclosure housing 22 and the duct housing 23 and by using the structure design that the area 2310 of the inlet 231 is equal to the area 2320 of the outlet 232, and the volume 2210 of the sound baffle 222 and the second chamber 221 is less than half of the volume 2010 of the first chamber 201 or the volume 2210 of the second chamber 221 is less than one third of the volume 2010 of the first chamber 201.

Compared with the prior art, the invention utilizes the first sound box shell, the second sound box shell and the duct shell, and utilizes the structural design that the area of the inlet is equal to the area of the outlet, the volume of the sound wave blocking piece and the second cavity is less than half of the volume of the first cavity, or the volume of the second cavity is less than one third of the volume of the first cavity, thereby not only increasing the sound effect of the loudspeaker in a bass section, but also maintaining the sound effect of the loudspeaker in a treble section, and enabling the bass sound effect and the sound field of the electronic device to show certain effects so as to improve the audio-visual feeling of a user in use.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A loudspeaker device capable of enhancing bass sound effect is installed in a device shell of an electronic device, and is characterized by comprising:

the first sound box shell is arranged in the device shell, and a first cavity is formed in the first sound box shell;

the resonant shell is combined with the first sound box shell, the resonant shell and the first sound box shell jointly define the first cavity, and a resonant cavity is formed in the resonant shell;

the loudspeaker unit is carried on the resonance shell and arranged in the first cavity, and is used for sending a sound wave to the first cavity by utilizing the resonance cavity;

the second sound box shell is connected with the device shell and provided with a sound outlet opening, and a second cavity communicated with the sound outlet opening is formed in the second sound box shell; and

a pipe casing, connect first audio amplifier casing with the second audio amplifier casing, form in the pipe casing and communicate first cavity with a pipe cavity of second cavity, wherein the sound wave that loudspeaker monomer sent is borrowd by first cavity pressurization and through the pipe cavity transmits to the second cavity, and then by it sends to go out the sound opening.

2. The acoustic speaker device of claim 1 wherein said duct housing has an inlet and an outlet, said inlet and said outlet being disposed at opposite ends of said duct housing, respectively, said first chamber being in communication with said duct chamber through said inlet, said duct chamber being in communication with said second chamber through said outlet, and said inlet having an area equal to an area of said outlet.

3. The acoustic speaker device of claim 2 wherein said second enclosure has a sound wave blocking piece protruding from one side of said second enclosure and defining said sound outlet opening, such that the area of said sound outlet opening is between 1.5 times and 100 times the area of said outlet opening.

4. The acoustic speaker apparatus of claim 3 wherein said acoustic baffle is perpendicular to a normal to said outlet.

5. The acoustic speaker device of claim 1 wherein the volume of said second chamber is less than one half of the volume of said first chamber or the volume of said second chamber is less than one third of the volume of said first chamber.

6. The acoustic speaker device of claim 1 wherein said first enclosure housing has a side wall and a top wall connected to said side wall, said side wall being parallel to a side edge portion of said device housing, said top wall being parallel to a front housing of said device housing, said duct housing being connected to said side wall, wherein said sound outlet opening is formed in said side edge portion.

7. The acoustic speaker device of claim 6 wherein said resonant enclosure is bonded to said side wall, said resonant enclosure, said side wall and said top wall together defining said first chamber.

8. An electronic device, comprising:

a device housing; and

an acoustic speaker device mounted within the device housing, the acoustic speaker device comprising:

a resonant shell combined with the first sound box shell, wherein the resonant shell and the first sound box shell define the first cavity together, and a resonant cavity is formed in the resonant shell

9. The electronic device of claim 8, wherein the conduit housing has an inlet and an outlet, the inlet and the outlet are disposed at opposite ends of the conduit housing, the first chamber is in communication with the conduit chamber through the inlet, the conduit chamber is in communication with the second chamber through the outlet, and the area of the inlet is equal to the area of the outlet.

10. The electronic device of claim 9, wherein the second enclosure has a sound wave blocking plate protruding from a side of the second enclosure and defining the sound outlet opening, such that an area of the sound outlet opening is between 1.5 times and 100 times an area of the outlet.

11. The electronic device of claim 10, wherein the acoustic barrier is perpendicular to a normal of the outlet.

12. The electronic device of claim 8, wherein the volume of the second chamber is less than half the volume of the first chamber or the volume of the second chamber is less than one third the volume of the first chamber.

13. The electronic device according to claim 8, wherein the first acoustic enclosure has a side wall parallel to a side edge portion of the device housing and a top wall connected to the side wall, the top wall being parallel to a front housing of the device housing, the duct housing being connected to the side wall, wherein the sound outlet opening is formed on the side edge portion.

14. The electronic device of claim 13, wherein the resonant housing is coupled to the side wall, the resonant housing, the side wall, and the top wall collectively defining the first chamber.