CN210093464U - Loudspeaker with rear sound cavity - Google Patents
Loudspeaker with rear sound cavity Download PDFInfo
- Publication number
- CN210093464U CN210093464U CN201921182153.7U CN201921182153U CN210093464U CN 210093464 U CN210093464 U CN 210093464U CN 201921182153 U CN201921182153 U CN 201921182153U CN 210093464 U CN210093464 U CN 210093464U
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- loudspeaker
- cavity
- sound
- vibrating diaphragm
- cavity shell
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Abstract
The utility model discloses a loudspeaker with a back sound cavity, which comprises a bracket, a vibrating diaphragm, a back cavity shell, a U-shaped cup, a magnet, a washer, a voice coil and a PCB (printed circuit board); the vibrating diaphragm and the rear cavity shell cover the front side and the back side of the bracket respectively, and the U cup is arranged on the bracket and extends into the rear cavity shell; the magnet is arranged in the U cup, the washer is stacked on the magnet, and the voice coil is arranged on the vibrating diaphragm and extends to a position between the magnet and the U cup; a rear sound cavity positioned at the rear side of the vibrating diaphragm is formed in the rear cavity shell; the PCB is arranged on the rear cavity shell. The rear cavity shell is arranged on the back surface of the support, the rear cavity shell and the support structure form a rear sound cavity with fixed capacity, the vibrating diaphragm is close to the rear sound cavity, the vibrating diaphragm vibrates in the fixed rear sound cavity, the pushing force of the vibrating diaphragm can be improved, the sound listening feeling is stronger, the loudspeaker with the rear sound cavity is assembled on the earphone shell, and the sound effect does not need to be adjusted automatically; compared with the prior loudspeaker which needs to adjust the sound effect by self, the installation process is more flexible and convenient.
Description
Technical Field
The utility model relates to a loudspeaker field technique especially indicates a loudspeaker from taking back tone chamber.
Background
The traditional loudspeaker generally comprises a bracket, a U-shaped cup and a vibrating diaphragm, wherein the U-shaped cup and the vibrating diaphragm are arranged on the bracket; the voice coil is electrically connected with the voice coil through a wire so as to vibrate the diaphragm to make sound.
When a loudspeaker with the structure is purchased by an electronic product manufacturer and installed in a corresponding product, the sound cavity needs to be designed and adjusted, so that the design and installation cost is increased, and the design flexibility is limited; for example, the earphone, just can form the back sound chamber in installing traditional loudspeaker in the cavity of earphone, because the volume and the shape in back sound chamber are relevant with the efficiency, still consider the audio of earphone when installing this kind of loudspeaker to the earphone, therefore, to the shape of earphone cavity, aspects such as structural design and the installation structural design of loudspeaker in the earphone cavity, lead to electronic product's design work load, design cost etc. is higher, the design flexibility is limited, it is not nimble simple and convenient enough to the installation of loudspeaker, the audio is adjusted troublesome, and, be difficult to guarantee that loudspeaker can embody best audio on electronic product. These undoubtedly bring inconvenience to the horn application manufacturer.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a loudspeaker from taking back sound chamber, and its structure sets up rationally, has solved effectively that there is the audio to adjust troublesome after loudspeaker installs the product in the past, makes the installation nimble, simple and convenient problem inadequately.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a loudspeaker with a rear sound cavity comprises a support, a vibrating diaphragm, a rear cavity shell, a U-shaped cup, a magnet, a washer, a voice coil and a PCB (printed circuit board); the vibrating diaphragm and the rear cavity shell cover the front side and the back side of the bracket respectively, and the U cup is arranged on the bracket and extends into the rear cavity shell; the magnet is arranged in the U cup, the washer is stacked on the magnet, and the voice coil is arranged on the vibrating diaphragm and extends to a position between the magnet and the U cup; a rear sound cavity positioned at the rear side of the vibrating diaphragm is formed by the rear cavity shell and the bracket; the PCB is arranged on the rear cavity shell.
As a preferred embodiment: the front side of the bracket is provided with a first mounting position, and the back side of the bracket is provided with a second mounting position and a third mounting position; the second mounting position is positioned at the periphery of the third mounting position; the diaphragm is assembled at the first installation position, the rear cavity shell is assembled at the second installation position, and the U cup is assembled at the third installation position.
As a preferred embodiment: the first mounting position and the third mounting position are mounting concave positions, and the vibrating diaphragm and the U cup are mounted in the corresponding mounting concave positions.
As a preferred embodiment: the second mounting position is a first mounting plane, the rear cavity shell is provided with a second mounting plane, and the second mounting plane and the first mounting plane are attached to each other.
As a preferred embodiment: the vibrating diaphragm, the rear cavity shell and the U cup are assembled in corresponding mounting positions by gluing or interference fit.
As a preferred embodiment: the reverse side of vibrating diaphragm is equipped with the binding face, and this voice coil loudspeaker voice coil laminating is on the binding face.
As a preferred embodiment: the rear cavity shell is provided with a concave position for limiting the PCB, and the PCB is attached to the rear side of the rear cavity shell and limited by the concave position.
As a preferred embodiment: the support is provided with a plurality of first through holes, and the rear cavity shell is provided with a plurality of second through holes.
As a preferred embodiment: and the outer surface of the rear cavity shell is provided with a tone tuning paper, and the tone tuning paper covers the second through hole.
As a preferred embodiment: the U-shaped cup is provided with a third through hole in a penetrating way, and a tuning net is covered on the third through hole.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme: the rear cavity shell is arranged on the back of the support and provided with the rear sound cavity, the rear cavity shell and the support form the rear sound cavity with fixed capacity, the vibrating diaphragm is close to the rear sound cavity, the vibrating diaphragm vibrates in the fixed rear sound cavity, the pushing force of the vibrating diaphragm can be improved, and after the loudspeaker with the rear sound cavity is assembled into the earphone, the sound listening feeling can be stronger, and the best sound effect can be adjusted when the loudspeaker leaves a factory; the loudspeaker is only required to be installed in a corresponding product, and the sound effect is not required to be adjusted automatically; compared with the prior loudspeaker which needs to adjust the sound effect by self, the installation process is more flexible and convenient.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic perspective view of a first preferred embodiment of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic perspective view of the first preferred embodiment of the present invention.
Fig. 4 is an exploded view of fig. 3.
Fig. 5 is a sectional view of the first preferred embodiment of the present invention.
Fig. 6 is a schematic perspective view of a second preferred embodiment of the present invention.
Fig. 7 is an exploded view of fig. 6.
Fig. 8 is a schematic perspective view of another angle according to a second preferred embodiment of the present invention.
Fig. 9 is an exploded view of fig. 8.
Fig. 10 is a sectional view of a second preferred embodiment of the present invention.
The attached drawings indicate the following:
10. bracket 11, first installation position
12. Second mounting location 13 third mounting location
14. First perforation 20, vibrating diaphragm
21. Binding surface 30, back cavity shell
31. Back sound cavity 32, concave
33. Second perforation 34, sound mixing paper
40. U cup 41, third through hole
42. Tuning net 50 and magnet
60. Washer 70 and voice coil
80. And (7) a PCB board.
Detailed Description
Referring to fig. 1 to 5, a speaker with a back cavity according to a first preferred embodiment of the present invention is shown, which includes a bracket 10, a diaphragm 20, a back cavity housing 30, a U-cup 40, a magnet 50, a washer 60, a voice coil 70 and a PCB 80.
The vibrating diaphragm 20 and the rear cavity shell 30 cover the front side and the back side of the bracket 10 respectively, and the U-shaped cup 40 is installed on the bracket 10 and extends into the rear cavity shell 30; the magnet 50 is arranged in the U cup 40, the washer 60 is stacked on the magnet 50, and the voice coil 70 is arranged on the diaphragm 20 and extends between the magnet 50 and the U cup 40; a magnetic gap is formed between the magnet 50 and the U-cup 40, the voice coil 70 extends into the magnetic gap, the voice coil 70 is connected to the PCB 80 through a wire, the PCB 80 controls the current of the voice coil 70, and the vibration of the voice coil 70 is realized by changing the current, because the voice coil 70 is connected to the diaphragm 20, the vibration of the voice coil 70 can drive the diaphragm 20 to vibrate.
In the present embodiment, the back cavity housing 30 and the support form a back sound cavity 31 located at the back side of the diaphragm 20; the PCB board 80 is provided on the rear cavity case 30. Through the arranged rear sound cavity 31, the sound effect of the loudspeaker can be adjusted on the basis of the rear sound cavity 31 when the loudspeaker leaves a factory; for a subsequent manufacturer who purchases the electronic product, for example, the earphone can be directly assembled in the shell of the earphone after purchasing the loudspeaker with the rear sound cavity 31, the sound effect of the loudspeaker is not required to be adjusted, the manufacturer only needs to design the shell capable of assembling the loudspeaker, the size of the sound cavity and the structure are not required to be considered, and the design workload and the design cost are reduced.
The front side of the bracket 10 is provided with a first mounting position 11, and the back side of the bracket 10 is provided with a second mounting position 12 and a third mounting position 13; the second mounting position 12 is positioned at the periphery of the third mounting position 13; the diaphragm 20 is mounted at the first mounting location 11, the back cavity housing 30 is mounted at the second mounting location 12, and the U-cup 40 is mounted at the third mounting location 13. Specifically, the first mounting position 11 and the third mounting position 13 are mounting recesses, and the diaphragm 20 and the U-cup 40 are mounted in the corresponding mounting recesses. The diaphragm 20, the back cavity shell 30 and the U-cup 40 are fitted in the respective mounting locations by gluing or interference fit. Through the installation position that sets up, can be convenient for the installation between each accessory, and adopt the mode of gluing or interference fit, be different from the mode that adopts the screw spiral shell to close in the past, can reduce the use of fastener.
The opposite side of the diaphragm 20 is provided with an attaching surface 21, and the voice coil 70 is attached to the attaching surface 21. The rear cavity housing 30 is provided with a concave position 32 for limiting the PCB board 80, and the PCB board 80 is attached to the rear side of the rear cavity housing 30 and limited by the concave position 32.
The bracket 10 is provided with a plurality of first through holes 14, and the rear cavity shell is provided with a plurality of second through holes 33; the outer surface of the rear cavity shell 30 is provided with a tuning paper 34, and the tuning paper 34 covers the second through hole 33. The U-cup 40 is provided with a third through hole 41, and a tuning net 42 is covered on the third through hole 41. The vibration amplitude of the vibrating diaphragm 20 can be more balanced through the arranged first through holes 14, the set tuning paper 34 and the set tuning net 42 are utilized, the density of the vibrating diaphragm is uniform, the density of the air holes is average, the thickness consistency is excellent, the good waterproof effect is achieved, the damping effect can be achieved on sound waves, sound sharp waves are planned, and the effect of improving the sound frequency characteristic is very effective.
Referring to fig. 6 to 10, a specific structure of a second preferred embodiment of the present invention is shown, which is substantially the same as the specific structure of the first preferred embodiment, except that the bracket 10 and the rear cavity housing 30 are arranged in another way; specifically, the second mounting position 12 is a first mounting plane, the rear cavity shell has a second mounting plane, and the second mounting plane and the first mounting plane are attached to each other; the loudspeaker is assembled in a plane attaching mode, so that the structure is simpler, and the inner space of the assembled loudspeaker is larger. And the PCB board 80 is mounted to the middle of the rear cavity case 30.
The utility model discloses a design focus lies in: through the rear cavity shell 30 arranged on the back of the support 10, the rear cavity shell 30 and the support 10 form a rear sound cavity 31 with fixed capacity, so that the vibrating diaphragm 20 is close to the rear sound cavity 31, the vibrating diaphragm 20 vibrates in the fixed rear sound cavity 31, the pushing force of the vibrating diaphragm 20 can be improved, and after the earphone is assembled by the loudspeaker with the rear sound cavity 31, the sound listening feeling can be stronger, and the best sound effect can be adjusted when the loudspeaker leaves a factory; the loudspeaker is only required to be installed in a corresponding product, and the sound effect is not required to be adjusted automatically; compared with the prior loudspeaker which needs to adjust the sound effect by self, the installation process is more flexible and convenient.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a from loudspeaker of taking back sound chamber which characterized in that: comprises a bracket (10), a vibrating diaphragm (20), a rear cavity shell (30), a U-shaped cup (40), a magnet (50), a washer (60), a voice coil (70) and a PCB (80); the vibrating diaphragm (20) and the rear cavity shell (30) cover the front side and the back side of the support (10) respectively, and the U cup (40) is installed on the support (10) and extends into the rear cavity shell (30); the magnet (50) is arranged in the U cup (40), the washer (60) is stacked on the magnet (50), and the voice coil (70) is arranged on the diaphragm (20) and extends between the magnet (50) and the U cup (40); a rear sound cavity (31) positioned at the rear side of the vibrating diaphragm (20) is formed by the rear cavity shell (30) and the bracket (10); the PCB (80) is arranged on the rear cavity shell (30).
2. The loudspeaker with the back sound cavity as claimed in claim 1, wherein: the front surface of the bracket (10) is provided with a first mounting position (11), and the back surface of the bracket (10) is provided with a second mounting position (12) and a third mounting position (13); the second mounting position (12) is positioned at the periphery of the third mounting position (13); the diaphragm (20) is assembled at a first installation position (11), the rear cavity shell (30) is assembled at a second installation position (12), and the U-shaped cup (40) is assembled at a third installation position (13).
3. The loudspeaker with the back sound cavity as claimed in claim 2, wherein: the first installation position (11) and the third installation position (13) are installation concave positions, and the vibrating diaphragm (20) and the U cup (40) are installed in the corresponding installation concave positions.
4. The loudspeaker with the back sound cavity as claimed in claim 2, wherein: the second mounting position (12) is a first mounting plane, the rear cavity shell is provided with a second mounting plane, and the second mounting plane and the first mounting plane are attached to each other.
5. The loudspeaker with the back sound cavity as claimed in claim 2, wherein: the diaphragm (20), the rear cavity shell (30) and the U-shaped cup (40) are assembled in corresponding mounting positions by adopting gluing or interference fit.
6. The loudspeaker with the back sound cavity as claimed in claim 1, wherein: the reverse side of vibrating diaphragm (20) is equipped with binding face (21), and this voice coil (70) is laminated on binding face (21).
7. The loudspeaker with the back sound cavity as claimed in claim 1, wherein: the rear cavity shell (30) is provided with a concave position (32) for limiting the PCB (80), and the PCB (80) is attached to the rear side of the rear cavity shell (30) and limited by the concave position (32).
8. The loudspeaker with the back sound cavity as claimed in claim 1, wherein: the support (10) is provided with a plurality of first through holes (14), and the rear cavity shell is provided with a plurality of second through holes (33).
9. The loudspeaker of claim 8 with a rear sound cavity, wherein: and the outer surface of the rear cavity shell (30) is provided with a sound mixing paper (34), and the sound mixing paper (34) covers the second through hole (33).
10. The loudspeaker of claim 8 with a rear sound cavity, wherein: the U-shaped cup (40) is provided with a third through hole (41) in a penetrating way, and a tuning net (42) is covered on the third through hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921182153.7U CN210093464U (en) | 2019-07-25 | 2019-07-25 | Loudspeaker with rear sound cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921182153.7U CN210093464U (en) | 2019-07-25 | 2019-07-25 | Loudspeaker with rear sound cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210093464U true CN210093464U (en) | 2020-02-18 |
Family
ID=69485398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921182153.7U Active CN210093464U (en) | 2019-07-25 | 2019-07-25 | Loudspeaker with rear sound cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210093464U (en) |
-
2019
- 2019-07-25 CN CN201921182153.7U patent/CN210093464U/en active Active
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