TWI491267B - Sound box structure of electronic device - Google Patents

Description

Speaker structure of electronic device

The present invention relates to a speaker structure of an electronic device.

In an electronic device, an electronic device carrying a speaker structure is more common to meet the requirements of the consumer's external sound playback function. The speaker structure comprises a speaker, the speaker is mounted in a chamber of the housing, and the circuit board abuts the opening of the chamber, and the sound diffusing surface of the speaker forms a front sound chamber with the housing and the side wall of the chamber. The back side of the speaker forms a rear chamber with the circuit board and the side walls of the chamber. The airtightness of the front and rear chambers constitutes an important factor in the sound quality of the speaker. Since the speaker structure forms the front and rear sound chambers through the cooperation between the plastic shells, since the plastic parts are not elastic, the airtightness between the parts is poor, so that the airtightness of the front and rear sound chambers is insufficient. ideal. When the speaker sounds, the front and rear sound chambers are prone to sound leakage or broken sound, which makes the sound quality not good. In addition, the conventional speaker structure is generally adapted to the assembly of the speaker component by modifying the housing structure of the housing during the design change, and the speaker structure is likely to cause waste of the housing.

In view of the above, it is necessary to provide a speaker structure of an airtight electronic device.

A speaker structure of an electronic device includes a casing, a front rubber member, a speaker, a rear rubber member and a circuit board, the casing having a receiving cavity, the front rubber The rubber member and the rear rubber member are respectively received in the receiving cavity of the casing, and the circuit board covers the receiving cavity, and the front rubber member forms a front sound chamber with the speaker side, and the front portion The rubber member cooperates with the housing, and the rear rubber member forms a rear chamber with the speaker side and the circuit board, and the rear rubber member abuts against the circuit board.

Compared with the speaker structure of the conventional electronic device, the present invention forms a front sound chamber by using a front rubber member and a speaker, and the front rubber member is matched with the speaker, and the front sound chamber is airtight, thereby avoiding direct connection with the speaker through the speaker. The housing cooperates to form an easy-to-leak sound chamber; a rear chamber is formed by using a rear rubber member and the speaker and the circuit board, and the rear rubber member is matched with the circuit board, and the rear chamber is airtight. In this way, the speaker structure of the electronic device can be made airtight.

100‧‧‧Speaker structure

10‧‧‧shell

12‧‧‧ containment chamber

14‧‧‧First bottom wall

142‧‧‧ sound hole

144‧‧‧Flange

16‧‧‧First week wall

162‧‧‧Material

20‧‧‧Pre-rubber parts

22‧‧‧ recessed space

24‧‧‧ second bottom wall

242‧‧‧Sound hole

26‧‧‧Second week wall

262‧‧‧ annular groove

28‧‧‧ screen

30‧‧‧Speakers

32‧‧‧Party face

320‧‧‧Pre-sound room

34‧‧‧Electrical connection surface

340‧‧‧After sound room

342‧‧‧Electrical connection terminal

40‧‧‧After rubber parts

42‧‧‧ accommodating space

44‧‧‧ Third week wall

442‧‧‧ first end edge

444‧‧‧second edge

446‧‧‧ bumps

50‧‧‧ boards

1 is a first perspective exploded view of a speaker device structure of an electronic device according to a preferred embodiment of the present invention; FIG. 2 is a second perspective exploded view of a speaker device structure of an electronic device according to a preferred embodiment of the present invention; FIG. 3 is a preferred embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An overall schematic view of a speaker device structure of an electronic device is shown in FIG.

Referring to FIG. 1 , a speaker structure 100 of an electronic device (such as a mobile phone, etc.) includes a housing 10 , a front rubber member 20 , a speaker 30 , a rear rubber member 40 , and a circuit board 50 . .

Referring to FIG. 2 , a receiving cavity 12 is defined in one end of the housing 10 , and is formed in the housing 10 . On the inner surface, it has a square frame structure. The receiving cavity 12 is surrounded by a first bottom wall 14 and a first peripheral wall 16 . A sound hole 142 is defined in the first bottom wall 14 , and a flange 144 is formed on the hole wall of the sound hole 142 for engaging with the front rubber member 20 . The first peripheral wall 16 is surrounded by the irregularly shaped side walls and surrounds the sound hole 142. The top of the first peripheral wall 16 has an irregularly shaped mating surface 162 for mating with the rear rubber member 40.

The front rubber member 20 has a frame structure for engaging with the sound hole 142, and has a recessed space 22, and defines a second bottom wall 24 and a second peripheral wall 26 of the recessed space 22. . A sound hole 242 having a square hole structure is defined in the second bottom wall 24. In the embodiment, the bottom of the recessed space 22 is further provided with a thin screen 28, which covers the sound hole 242. An annular groove 262 is defined in an outer side of the second peripheral wall 26 for engaging with a flange 144 on the wall of the sound hole 142.

The speaker 30 has a square structure, and includes a sound absorbing surface 32 and an electrical connection surface 34. The speaker 30 emits sound through the sound absorbing surface 32, and the sound absorbing surface 32 is used for the front rubber member 20. Cooperate. Two electrical connection terminals 342 are formed on the electrical connection surface 34 for electrically connecting to circuits on the circuit board 50.

The rear rubber member 40 has a substantially quadrangular frame structure, and has an accommodating space 42 and a third peripheral wall 44 surrounding the accommodating space 42. The third peripheral wall 44 is connected to each other by a four-shaped irregular sidewall to form a quadrangular frame. The third peripheral wall 44 includes a first end edge 442 and a second end edge 444. The surface of the first end edge 442 The shape corresponds to the shape of the mating surface 162 of the first peripheral wall 16 of the housing 10 to cooperate with the mating surface 162 of the first peripheral wall 16. The second end edge 444 is a flat surface, and the second end edge 444 is for mating with the surface of the circuit board 50. a plurality of convexities are formed on the inner side of the third peripheral wall 44 144, the plurality of protrusions 446 constitute a holding edge of the accommodating space 42. The plurality of protrusions 446 and the third peripheral wall 44 define the accommodating space 42 to accommodate the speaker 30 therein. .

The circuit board 50 is a planar board structure having two electrical connection points 52 formed thereon, and the two electrical connection points 52 are electrically connected to the two electrical connection terminals 342 of the speaker 30.

Referring to FIG. 3 and FIG. 4, when assembling the speaker structure 100 of the electronic device, the front rubber member 20 is first placed into the receiving cavity 12 of the housing 10, and the sound hole of the first bottom wall 14 is sounded. The flange 144 of the 142 engages with the annular groove 262 of the second peripheral wall 26 of the front rubber member 20.

Then, the sound absorbing surface 32 of the speaker 30 is abutted against the surface of the rubber peripheral wall 22 of the front rubber member 20, and the sound absorbing surface 32 and the recessed space 22 of the front rubber member 20 form a front sound chamber 320. Since the front rubber member 20 has a certain elasticity of the rubber material, the front rubber member 20 cooperates with the sound absorbing surface 32 of the speaker 30 to achieve a good airtightness effect, that is, the sound effect of the front sound chamber 320 on the speaker 30. More ideal.

The rear rubber member 40 is then engaged with the receiving cavity 12 of the housing 10, and the first end edge 442 of the third peripheral wall 44 of the rear rubber member 40 and the first peripheral wall of the housing 10 The mating surface 162 of the 16 is matched, and the speaker 30 is received in the accommodating space 42 of the rear rubber member 40. Meanwhile, the plurality of protrusions 446 of the rear rubber member 40 support the electrical connection surface 34 of the speaker 30. The speaker 30 is mounted securely. Finally, the circuit board 50 is assembled, and the circuit board 50 abuts against the third peripheral wall 44 of the rear rubber member 40, that is, the surface of the circuit board 50 cooperates with the second end edge 444 of the rear rubber member 40. The third peripheral wall 44 of the rear rubber member 40 forms a rear chamber 340 with the electrical connection surface 34 of the speaker 30 and the circuit board 50. Since the rear rubber member 40 has a certain elasticity of the rubber material, the second end edge 444 has good airtightness with the surface of the circuit board 50 and the speaker 30, that is, the rear sound chamber 340 Good air tightness.

When the speaker 30 is dissipated, the sound is transmitted to the outside through the screen 28 in the front rubber member 20, the sound hole 242, and the sound hole 142 in the casing 10. In the speaker structure 100, the front sound chamber 320 and The rear chamber 340 is airtight and does not leak, so that a better sound quality effect can be obtained. In addition, the dimensions of the front sound chamber 320 and the rear sound chamber 340 need to be modified according to the design requirements of the electronic device, and the size of the front rubber member 20 or the rear rubber member 30 can be modified compared to the housing cavity 12 of the modified housing 10. Suitable for speaker structure, more convenient.

It will be appreciated that the screen 28 can be replaced with other materials such as foam or the like.

It can be understood that the screen 28 can be omitted, and when the speaker 30 is scattered, the sound is directly transmitted from the sound hole 242 and the sound hole 142 on the casing 10 to the outside.

100‧‧‧Speaker structure

10‧‧‧shell

12‧‧‧ containment chamber

14‧‧‧First bottom wall

142‧‧‧ sound hole

144‧‧‧Flange

16‧‧‧First week wall

162‧‧‧Material

20‧‧‧Pre-rubber parts

22‧‧‧ recessed space

24‧‧‧ second bottom wall

242‧‧‧Sound hole

26‧‧‧Second week wall

262‧‧‧ annular groove

28‧‧‧ screen

30‧‧‧Speakers

34‧‧‧Electrical connection surface

342‧‧‧Electrical connection terminal

40‧‧‧After rubber parts

42‧‧‧ accommodating space

44‧‧‧ Third week wall

444‧‧‧second edge

446‧‧‧ bumps

50‧‧‧ boards

Claims (7)

A speaker structure of an electronic device includes a casing, a speaker and a circuit board. The casing has a receiving cavity. The speaker is disposed in the receiving cavity and is covered by the circuit board. The improvement is: The speaker structure of the electronic device further includes a front rubber member and a rear rubber member. The front rubber member and the rear rubber member are respectively received in the receiving cavity of the housing after the speaker is clamped, and the front rubber member and the front rubber member are Holding the housing, the housing includes a first peripheral wall forming the receiving cavity, the first peripheral wall includes an irregularly shaped mating surface, and the rear rubber member includes a third peripheral wall, the third The peripheral wall includes a first end edge having a shape corresponding to the mating surface, the first end edge mating with the mating surface, and the rear rubber member abutting the circuit board. The speaker structure of the electronic device of claim 1, wherein the housing has a first bottom wall forming the receiving cavity, and the first bottom wall defines a sound hole, the sound hole a flange is formed on the wall of the hole, the front rubber member has a second peripheral wall, and the second peripheral wall is formed with an annular groove that cooperates with the flange to make the front rubber member and the shell Body card. The speaker structure of the electronic device of claim 2, wherein the front rubber member further defines a recessed space and a second bottom wall constituting the recessed space, and the second bottom wall defines a sound hole The speaker structure further includes a screen disposed at the bottom of the recessed space to cover the sound hole. The speaker structure of the electronic device of claim 3, wherein the speaker has a sound absorbing surface, and the second peripheral wall of the front rubber member abuts the sound absorbing surface, and the concave portion of the front rubber member Forming a front sound chamber with the sound absorbing surface. The speaker structure of the electronic device of claim 4, wherein the rear rubber member is formed with an accommodating space and a third peripheral wall enclosing the accommodating space, and a plurality of protrusions are formed on the inner side of the third peripheral wall. The speaker is placed in the accommodating space, and the protrusion supports the speaker. The speaker structure of the electronic device of claim 5, wherein the third peripheral wall further includes a second end edge, the second end edge is a plane, and the speaker is placed in the accommodating space The circuit board is abutted against the second end edge, and the electrical connection surface of the speaker forms a rear sound chamber with the third peripheral wall and the circuit board. The speaker structure of the electronic device of claim 1, wherein the speaker further has an electrical connection surface, two electrical connection terminals are formed on the electrical connection surface, and two electrical connection points are formed on the circuit board. The electrical connection points are respectively connected to the electrical connection terminals.