CN211531325U

CN211531325U - Loudspeaker and terminal equipment

Info

Publication number: CN211531325U
Application number: CN202020210176.0U
Authority: CN
Inventors: 童迪江
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-09-18
Anticipated expiration: 2030-02-25
Also published as: WO2021168872A1

Abstract

The utility model provides a speaker and terminal equipment, the speaker is including the casing that has accommodating space and the sound production monomer of acceping in accommodating space, the sound production monomer becomes antetheca and back chamber with accommodating space separation, set up the through-hole that is linked together with the back chamber on the casing, the speaker is still including being fixed in shown casing and the ventilative isolation subassembly that covers the through-hole, ventilative isolation subassembly is including the PET layer that stacks gradually the setting, glue film and ventilative isolation layer, the glue film clamp is located ventilative isolation layer upon layer and fixed with the casing laminating between with the casing, PET layer subsides are located the glue film and are kept away from one side of ventilative isolation layer and accept in the through-hole, the glue film runs through and has seted up the hole of revealing, the PET layer corresponds the intercommunicating pore of seting hole and through-hole, the hole of revealing is through intercom. By the technical scheme, the technical problem that in the prior art, the thickness of the loudspeaker is large due to the fact that the number of layers of the breathable isolation component is too large, and the loudspeaker is not beneficial to being applied to terminal equipment such as a mobile phone is solved.

Description

Loudspeaker and terminal equipment

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustoelectric conversion technical field especially relates to a speaker and terminal equipment.

[ background of the invention ]

With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among many mobile devices, the mobile phone is undoubtedly the most common and convenient mobile terminal device. At present, the functions of mobile phones are very diverse, one of them is a high-quality music function, so that a sound generating device for playing sound is widely applied to the current smart mobile devices.

In order to obtain a better acoustic effect, the sound production device in the related art often fills sound absorption particles in a cavity inside the loudspeaker; and simultaneously, leakage holes are formed to balance the internal and external air pressures. In order to prevent external dust from entering the speaker, the conventional integrated speaker generally requires a ventilation spacer fixed to the housing to cover the leakage hole, and the conventional ventilation spacer generally has a large thickness to increase the rigidity, so that the thickness and volume of the speaker are increased, which is not favorable for applying the speaker to a terminal device such as a mobile phone.

Therefore, there is a need for a speaker that improves upon the above problems.

[ Utility model ] content

An object of the utility model is to provide a loudspeaker to solve among the prior art because of the number of piles of ventilative isolation component is too much and lead to loudspeaker thickness great, be unfavorable for being applied to terminal equipment's such as cell-phones technical problem.

The technical scheme of the utility model as follows:

a loudspeaker comprises a shell with an accommodating space and a sound generating unit accommodated in the accommodating space, wherein the sound generating unit separates the accommodating space into a front cavity and a rear cavity, the shell is provided with a through hole communicated with the rear cavity, the loudspeaker further comprises a breathable isolation assembly fixed on the shell and covering the through hole, the breathable isolation assembly comprises a PET layer, a glue layer and a breathable isolation layer which are sequentially stacked, the glue layer is clamped between the breathable isolation layer and the shell and is fixedly attached to the shell, the PET layer is attached to one side, away from the breathable isolation layer, of the glue layer and is accommodated in the through hole, the glue layer is penetrated and provided with a leakage hole, the PET layer is correspondingly provided with a communication hole communicating the leakage hole with the through hole, and the leakage hole is communicated with the through hole through the communication hole, the breathable isolation layer completely covers the leakage hole.

Further, the aperture of the through hole is larger than the apertures of the leakage hole and the communication hole.

Further, the outer diameter of the PET layer is smaller than or equal to the aperture of the through hole.

Further, the PET layer is of a circular ring structure.

Further, the leakage hole, the communication hole, and the through hole are coaxially disposed.

Furthermore, the outer side of the shell is recessed towards the rear cavity to form a groove for correspondingly accommodating the adhesive layer and the breathable isolation layer.

Further, the casing include the upper cover and with the upper cover forms accommodating space's lower cover, the upper cover with the sound production monomer forms the antechamber, the lower cover, the sound production monomer reaches the upper cover forms the back chamber, the upper cover is opened and is equipped with the through-hole.

Further, a terminal device comprising a speaker as described above.

The beneficial effects of the utility model reside in that: the breathable isolation assembly comprises a PET layer, a glue layer and a breathable isolation layer which are sequentially stacked, wherein the glue layer is clamped between the breathable isolation layer and the shell to attach and fix the breathable isolation layer and the shell; the PET layer is then pasted and is located the glue film and keep away from ventilative isolation layer one side and accept in the through-hole, sets up the position and the size on PET layer, makes the PET layer pass through the glue film and ventilative isolation layer is fixed with this rigidity of having guaranteed ventilative isolation layer to the size on PET layer makes it can accept in the through-hole, thereby the number of piles of the ventilative isolation layer of dual reduction, prevents that the thickness of casing from increasing because of ventilative isolation unit. In order to guarantee the acoustic performance of speaker, the glue film runs through and has seted up the hole of leaking, and the intercommunicating pore that communicates the hole of leaking and through-hole is seted up to the correspondence on PET layer, and ventilative isolation layer covers the hole of leaking completely, and this technical scheme is through the cooperation of hole of leaking, intercommunicating pore and ventilative isolation layer on the one hand for the inside and outside atmospheric pressure of casing keeps balanced, simultaneously, also can be through the via hole to the filling of rear chamber acoustical absorbent. By the technical scheme, when the acoustic performance of the loudspeaker is good through the sound absorbing material and the leakage hole, the technical problem that in the prior art, the thickness of the loudspeaker is large due to the fact that the number of layers of the breathable isolation assembly is too large, and the loudspeaker is not beneficial to being applied to terminal equipment such as a mobile phone is solved.

[ description of the drawings ]

Fig. 1 is a schematic view of an overall structure of a speaker according to the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of the upper cover;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 1;

fig. 6 is a partially enlarged view at C in fig. 4.

[ detailed description ] embodiments

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. 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 application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present invention will be further described with reference to the accompanying drawings and embodiments. Referring to fig. 1-6, a speaker, the speaker includes a housing 10 having an accommodating space, a sound generating unit 20 accommodated in the accommodating space, the sound generating unit 20 dividing the accommodating space into a front cavity 41 and a rear cavity 42, the housing 10 being provided with a through hole 10a communicating with the rear cavity 42, the speaker further including a ventilation isolation assembly 30 fixed to the housing 10 and covering the through hole 10a, the ventilation isolation assembly 30 including a PET layer 32, a glue layer 33 and a ventilation isolation layer 31 sequentially stacked, the glue layer 33 being sandwiched between the ventilation isolation layer 31 and the housing 10 and being attached to and fixed to the housing 10, the PET layer 32 being attached to one side of the glue layer 33 away from the ventilation isolation layer 31 and being accommodated in the through hole 10a, the glue layer 33 being provided with a leakage hole 331 therethrough, the PET layer 32 being provided with a communication hole 321 communicating the leakage hole 331 and the through hole 10a correspondingly, the leakage hole 331 being communicated with the through the communication hole, the breathable isolation layer 31 completely covers the leakage hole 331.

Referring to fig. 5 in particular, the sound-generating unit 20 divides the accommodating space into a front cavity 41 and a rear cavity 42, the front cavity 41 is used for generating sound, the rear cavity 42 is used for improving the low-frequency acoustic performance of the speaker, and sound-absorbing particles can be filled into the rear cavity 42 from the through hole 10a to form a virtual sound cavity (i.e., a D-Bass sound cavity), so as to improve the low-frequency acoustic performance; meanwhile, the inside and outside air pressures are balanced by the through hole 10a communicating with the rear chamber 42, and the air-permeable isolating member 30 is used for sealing the through hole 10a to prevent external foreign matters from entering the rear chamber 42, thereby ensuring the reliability of the speaker and allowing the air flow in the rear chamber 42 to circulate with the external space.

In the technical scheme, the breathable isolation assembly 30 comprises a PET layer 32, a glue layer 33 and a breathable isolation layer 31 which are sequentially stacked, wherein the glue layer 33 is sandwiched between the breathable isolation layer 31 and the shell 10 to attach and fix the breathable isolation layer 31 and the shell 10; the PET layer 32 is attached to the side of the adhesive layer 33, which is far away from the breathable isolation layer 31, and is accommodated in the through hole 10a, and the position and size of the PET layer 32 are set, so that the PET layer 32 is fixed with the breathable isolation layer 31 through the adhesive layer 33, on one hand, the rigidity of the breathable isolation layer 31 is ensured, and on the other hand, the breathable isolation assembly 30 only comprises the breathable isolation layer 31, the PET layer 32 and the adhesive layer 33, namely, the number of layers of the breathable isolation assembly 30 is three; the PET layer 32 is sized to be received in the through hole 10a, thereby doubly reducing the number of layers of the air-permeable barrier layer 31 and preventing the thickness of the case 10 from being increased by the air-permeable barrier member 30. In order to ensure the acoustic performance of the speaker, the adhesive layer 33 is provided with a leakage hole 331 in a penetrating manner, the PET layer 32 is provided with a communication hole 321 communicating the leakage hole 331 and the through hole 10a correspondingly, and the breathable isolation layer 30 completely covers the leakage hole 331, that is, in the technical scheme, on one hand, the sound-absorbing material is filled into the rear cavity 42 through the through hole 10a, and on the other hand, the internal and external air pressures of the casing 10 are kept balanced through the cooperation of the leakage hole 331, the communication hole 321 and the breathable isolation layer 31. By applying the technical scheme, the sound absorbing material and the leakage holes 331 are used for ensuring good acoustic performance of the loudspeaker, the thickness of the breathable isolation component 30 is greatly reduced, and the technical problem that the loudspeaker is large in thickness and not beneficial to being applied to terminal equipment such as mobile phones due to the fact that the number of layers of the breathable isolation component 30 is too much in the prior art is solved.

In this embodiment, the air-permeable isolation layer 31 may be a non-woven fabric, a dust-free cloth, a nylon woven mesh, a metal mesh, or the like, and is used for the air-permeable isolation.

Referring to fig. 4 and 6, the aperture of the through hole 10a is larger than the apertures of the leakage hole 331 and the communication hole 321, and the through hole 10a is properly maintained to be larger than the leakage hole 331 and the communication hole 321, so that the operation of filling the sound-absorbing material through the through hole 10a is more convenient; on the other hand, the hole diameters of the leakage hole 331 and the communication hole 321 are smaller than the hole diameter of the through hole 10a, and the support and attachment of the adhesive layer 33 and the PET layer 32 to the breathable separation layer 31 can be properly maintained within the range.

Further, the outer diameter of the PET layer 32 is smaller than or equal to the aperture of the through hole 10a, and preferably, the outer diameter of the PET layer 32 is smaller than the aperture of the through hole 10a in the present embodiment, that is, when the PET layer 32 is accommodated in the through hole 10a, the PET layer 32 is spaced from the wall of the through hole 10 a. So that the PET layer 32 can be quickly and accurately sunk in the through hole 10a when the air-permeable separating member 30 is covered on the through hole 10a to ensure the assembling efficiency and the assembling quality.

Preferably, the PET layer 32 has a circular ring structure, and the leakage hole 331, the communication hole 321, and the through hole 10a are coaxially disposed. Referring to fig. 2 in particular, the positions of the leakage holes 331 and the communication holes 321 relative to the through hole 10a are set such that the PET layer 32 and the adhesive layer 33 are attached to the middle of the breathable isolation layer 31 with the central axis of the through hole 10a as the center, thereby ensuring that the adhesive layer 33 can attach the breathable isolation layer 31 to the casing 10 and the PET layer 32 can balance and uniformly reinforce the rigidity of the breathable isolation layer 31; on the other hand, the vibration between the air-permeable isolation assembly 30 and the housing 10 can be reduced, so that the vibration of the speaker itself can be reduced, and the noise generated by the vibration of the housing 10 can be prevented.

Referring to fig. 2-3, the outer side of the casing 10 is provided with a groove 10b recessed toward the rear cavity 42 to form a corresponding receiving glue layer 33 and the breathable isolation layer 31. The groove 10b is formed on the outer side of the shell 10 to fully utilize the thickness of the shell 10, and the breathable isolation layer 31 and the adhesive layer 33 are accommodated in the groove 10b, so that the increase of the thickness of the shell 10 due to the attachment of the breathable isolation layer 31 and the adhesive layer 33 is prevented; on the other hand, the size of the rear cavity 42 can be effectively ensured by forming the groove 10b on the outer side of the housing 10, that is, by attaching the breathable isolation layer 31 and the adhesive layer 33 to the outer side of the housing 10.

In the present embodiment, referring to fig. 2, the housing 10 includes an upper cover 11 and a lower cover 12 forming a receiving space with the upper cover 11, the upper cover 11 and the sound generating unit 20 form a front cavity 41, the lower cover 12, the sound generating unit 20 and the upper cover 11 form a rear cavity 42, and the upper cover 11 is provided with a through hole 10 a.

Further, the utility model also provides a terminal equipment, terminal equipment include like aforementioned speaker, this terminal equipment has the performance of aforementioned speaker promptly, and the thickness of speaker is less, more is applicable to this terminal equipment.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above are only embodiments of the present invention, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A loudspeaker, the said loudspeaker includes the body with containing space and the sound production monomer that is held in said containing space, the said sound production monomer will the said containing space separates into front chamber and back chamber, offer on the said body with the through hole that the said back chamber is linked together, the said loudspeaker still includes being fixed in the said body and covering the ventilative isolating assembly of the said through hole, characterized by that, the said ventilative isolating assembly includes PET layer, glue film and ventilative isolating layer that stacks gradually and sets up, the said glue film is pressed from both sides and locates between said ventilative isolating layer and the said body and laminate fixedly with the said body, the said PET layer is pasted and located one side that the said ventilative isolating layer is kept away from on the said glue film and held in the said through hole, the said glue film runs through and has offered the hole of revealing, the said PET layer corresponds to offer the said hole of revealing with the intercommunicating pore, the said hole is, the breathable isolation layer completely covers the leakage hole.

2. The speaker of claim 1, wherein an aperture of the through hole is larger than apertures of the leakage hole and the communication hole.

3. The loudspeaker of claim 1, wherein the outer diameter of the PET layer is less than or equal to the aperture of the through hole.

4. A loudspeaker according to claim 3, wherein the PET layer is in the form of a ring-shaped structure.

5. The speaker of claim 4, wherein the leakage hole, the communication hole, and the through hole are coaxially disposed.

6. The loudspeaker of claim 1, wherein the outer side of the housing is recessed toward the rear cavity to form a groove for correspondingly accommodating the adhesive layer and the air-permeable isolation layer.

7. The loudspeaker of claim 1, wherein the housing comprises an upper cover and a lower cover forming the receiving space with the upper cover, the upper cover and the sound generating unit form the front cavity, the lower cover, the sound generating unit and the upper cover form the rear cavity, and the upper cover is provided with the through hole.

8. A terminal device, characterized in that the terminal device comprises a loudspeaker according to any one of claims 1-7.