CN109040918B

CN109040918B - Sound cavity structure and electronic equipment

Info

Publication number: CN109040918B
Application number: CN201810757167.0A
Authority: CN
Inventors: 张宝超
Original assignee: SuperD Co Ltd
Current assignee: SuperD Co Ltd
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2021-03-30
Anticipated expiration: 2038-07-11
Also published as: CN109040918A

Abstract

The invention relates to the technical field of electronic equipment, and discloses a sound cavity structure and electronic equipment. The sound cavity structure comprises an upper shell support, a lower shell support, a loudspeaker and a small plate, and is characterized in that a first cavity and a second cavity which are adjacently arranged are formed between the upper shell support and the lower shell support, the loudspeaker and the small plate are respectively arranged in the first cavity and the second cavity, the loudspeaker and the small plate are electrically connected, and the small plate, the loudspeaker and the upper shell support enclose a sound cavity space. The electronic equipment comprises a machine body and the sound cavity structure. The sound cavity structure and the electronic equipment have the advantages of thickness and sound effect at the same time, and the manufacturing cost is not additionally increased.

Description

Sound cavity structure and electronic equipment

Technical Field

The present invention relates to the field of electronic devices, and in particular, to a sound cavity structure applied to an electronic device and an electronic device.

Background

The main functions of the mobile phone include voice communication and audio playing, the sound cavity of the mobile phone is an important factor influencing the sound quality of the mobile phone, the sound quality played by different sound cavity structures has great difference, however, the current intelligent mobile phone shows a trend of being thinner and thinner, the volume of the sound cavity is very limited on the premise of meeting the requirements of high configuration and large battery of the mobile phone, if the conventional sound cavity structure is adopted, the volume of the sound cavity required by the mobile phone cannot be achieved at all, and in order to ensure the high sound quality of the mobile phone, the sound cavity space with enough size must be ensured.

At present, the sound cavity structure of the mobile phone commonly used in the market is divided into two types: full BOX cavity structures and half BOX cavity structures.

The full BOX sound cavity structure generally comprises a front sound cavity cover plate, a rear sound cavity cover plate and a loudspeaker, wherein a loudspeaker sealing space is formed between the front sound cavity cover plate and the rear sound cavity cover plate.

The semi-BOX sound cavity structure comprises a support, a loudspeaker, a small plate and a surrounding bone, the loudspeaker is generally clamped between the small plate and the surrounding bone by the semi-BOX sound cavity structure, the support is used for pressing the loudspeaker, the small plate and the surrounding bone to form a sound cavity space, and the loudspeaker with the structure is arranged on the small plate, so that the integral height of the sound cavity is increased, and the whole machine of the mobile phone is not light and thin.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the sound cavity structure, which adopts a half-BOX sound cavity structure, the loudspeaker and the small plate plane are respectively arranged in the first cavity and the second cavity in a staggered way, the thickness of the sound cavity is reduced, and the saved internal space can be used as the volume of the sound cavity, so that the volume of the sound cavity can meet the requirement of the optimal tone quality and volume.

The invention also provides electronic equipment which has the advantages of better thickness and better tone quality effect by adopting the sound cavity structure.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a sound cavity structure, includes casing support, speaker and platelet down, its characterized in that, go up casing support, form adjacent first cavity and the second cavity that sets up between the casing support down, the speaker with the platelet divide row in first cavity with in the second cavity, just the speaker with electric connection between the platelet, the speaker and go up the casing support and enclose into a sound cavity space.

As a further improvement of the above technical solution, a first sealing member is disposed between the upper casing support and the small plate, and after the upper casing support and the lower casing support are assembled, the upper casing support presses the first sealing member onto the small plate to achieve the sealing connection between the upper casing support and the small plate.

As a further improvement of the above technical solution, the first sealing member is provided along a periphery of the small plate and is provided with an opening on a side facing the speaker.

As a further improvement of the above technical solution, the lower shell support is provided with a surrounding bone along the periphery of the small plate, and the upper surface of the small plate is as high as the upper surface of the surrounding bone.

As a further improvement of the above technical solution, a surrounding bone is arranged on the lower shell support along the periphery of the small plate, and a second sealing element is embedded between the side wall of the surrounding bone and the side wall of the small plate.

As a further improvement of the above technical solution, a section of auxiliary assembling bone extending toward the upper housing support is respectively disposed on the surrounding bone and the second sealing member to increase the installation height of the second sealing member.

As a further improvement of the above technical solution, the upper shell support is further provided with a top rib, a groove is formed in a side edge of the small plate, and the top rib is embedded in the groove to limit displacement of the small plate in the horizontal direction.

As a further improvement of the above technical solution, the upper housing support is further provided with a positioning column, the small plate is provided with a positioning hole, and the positioning column is inserted into the positioning hole to limit the displacement of the small plate in the longitudinal direction.

As a further improvement of the above technical solution, a buckle is further fixedly arranged on the upper shell support, and the buckle is arranged on the periphery of the small plate to limit the displacement of the small plate in the vertical direction.

The invention also provides electronic equipment which comprises a machine body and the sound cavity structure, wherein the sound cavity structure is fixedly arranged in the machine body.

The invention has the beneficial effects that:

compared with the traditional sound cavity structure, the sound cavity structure has the advantages that the thickness of the small plate is reduced on the whole, the small plate is thinner, the volume of the sound cavity can be designed by utilizing the saved internal space, and the sound cavity tone quality and volume effect is better.

The electronic equipment adopts the semi-BOX sound cavity structure, the thickness of the electronic equipment can be further reduced, and the saved internal space can be used as the volume of the sound cavity, so that the requirement of the sound quality and the volume of the sound cavity can be met.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic top view of the acoustic chamber structure of the present invention;

FIG. 2 is a schematic longitudinal cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of a structure at a platelet seal;

FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;

FIG. 5 is a schematic diagram of another embodiment of the acoustic cavity structure of FIG. 4;

FIG. 6 is a top view of another embodiment of the acoustic cavity structure of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

fig. 8 is a partially enlarged view at B in fig. 6.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the descriptions of up, down, left, right, front, rear, etc. used in the present invention are only relative to the positional relationship of the respective components of the present invention with respect to each other in the drawings.

Furthermore, 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. The terminology used in the description 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 combination of one or more of the associated listed items.

Referring to fig. 1 and 2, the sound cavity structure of the present invention includes an upper housing support 1, a lower housing support 2, a speaker 3, a small plate 4, and an adaptor FPC 5.

Go up casing support 1 and locate casing support 2's top down, go up casing support 1 and the whole frame of this sound cavity structure of casing support 2 enclosure synthesis down, and at last casing support 1, form adjacent first cavity 10 down between casing support 2, second cavity 11, speaker 3 is located in first cavity 10, platelet 4 is located in the second cavity 11, be provided with FPC5 between speaker 3 and the platelet 4, FPC5 is connected with speaker 3 and platelet 4 electricity respectively, thereby be in the same place speaker 3 and platelet 4 electric connection, speaker 3, enclose synthetic sound cavity space 6 between platelet 4 and the last casing support 1, the sound that speaker 3 produced transmits in sound cavity space 6, the processing through sound cavity space 6 makes tone quality obtain promoting. In this embodiment, because loudspeaker 3 and platelet 4 are located first cavity 10, second cavity 11 respectively, and both adopt the mode setting of dislocation, compare in traditional electronic equipment sound cavity structure, it has reduced a platelet thickness, and the holistic thickness in sound cavity is thinner to can utilize the interior space design sound cavity volume of getting down, make the sound cavity volume satisfy the requirement of tone quality volume.

The sound cavity structure of the invention adopts the structure that the loudspeaker 3 and the small plate 4 are arranged in a staggered way, and the sealing of the sound cavity space 6 becomes a crucial link. In this embodiment, the first sealing member 40 is provided between the upper casing support 1 and the small plate 4, and after the upper casing support 1, the lower casing support 2, and the small plate 4 are assembled, the upper casing support 1 presses the first sealing member 40 against the small plate 4, and the sealing property between the upper casing support 1 and the small plate 4 is ensured by the characteristic that the first sealing member 40 expands to the periphery after being forced.

The first sealing member 40 is disposed along the periphery of the small plate and has an opening on the side facing the speaker 3, and the side of the small plate 4 facing the speaker 3 is sealed by tightly pressing the upper casing support 1, the lower casing support 2 and the speaker 3, so as to ensure that the sound generated by the speaker 3 can be transmitted to the sound cavity space 6.

In order to realize the positioning and supporting of the small plate 4, the lower casing support 2 is provided with a surrounding bone 20 along the periphery of the small plate 4, and in order to ensure that the first sealing member 40 can uniformly seal the peripheral surface of the small plate 4, the upper surface of the surrounding bone 20 is arranged at the same height as the upper surface of the small plate 4.

In addition, in actual installation, there is a certain gap between the surrounding bone 20 and the small plate 4, which is typically about 5mm, for this reason, a second sealing member 7 is embedded in the gap between the side surface of the small plate 4 and the surrounding bone 20 for sealing, and the second sealing member 7 is made of a flexible material, such as silicone, rubber, carbon fiber, and the like.

In the common sound cavity structure, the thickness of platelet 4 is generally about 0.5mm, like this, the side of platelet 4 and the clearance department between the casing support 2 down only have height about 0.5mm generally, this sealed troublesome that causes for second sealing member 7, for solving this problem, in this embodiment, still set firmly supplementary assembly bone 8 on second sealing member 7 and enclose bone 20, the clearance between two supplementary assembly bones 8 and the side of platelet 4, the size of the clearance between enclosing bone 8 equals, through the high promotion in the clearance between two supplementary assembly bones 8 with the side of platelet 4 to casing support 2 down, make things convenient for second sealing member 7 to seal both.

Preferably, a circle of silk-screen sealing area 41 is further disposed on the periphery of the small plate 4, and the silk-screen sealing area 41 is an area where the first sealing member 40 is attached to the small plate 4.

As shown in fig. 6 to 8, referring to fig. 6, the direction of the sound cavity structure is described, in fig. 6, the direction indicated by the X axis indicates the horizontal direction of the sound cavity structure, the direction indicated by the Y axis indicates the longitudinal direction of the sound cavity structure, and the direction perpendicular to the plane of the X axis and the Y axis indicates the vertical direction of the sound cavity structure.

Furthermore, the upper shell support 1 is further fixedly provided with positioning columns 13, the positioning columns 13 are distributed along the periphery of the small plate 4, positioning holes are formed in the small plate 4, and the positioning columns 13 are inserted into the positioning holes so as to limit the displacement of the small plate 4 in the longitudinal direction.

Further, still set firmly buckle 14 on support 1, buckle 14 sets up in the periphery of platelet 4, and when platelet 4 installed on support 1, buckle 12 was died platelet 4 on last casing support 1 through last casing support 1 to prevent that platelet 4 from taking place the skew of position in vertical direction.

In the invention, the top bone 12 and the positioning column 13 ensure the horizontal and longitudinal fixed positioning of the small plate 4, ensure the gap between the side surface of the small plate 4 and the lower shell support 2, provide favorable environment for the good sealing between the small plate 4 and the surrounding bone, further ensure the fixation of the small plate 4 in the vertical direction through the buckle 12, and further ensure the fixation of the small plate 4 in the three-dimensional direction.

In this embodiment, the small plate 4 is further fixedly provided with an electrical component for supporting the operation of the sound cavity, so as to ensure the good operation of the sound cavity structure.

The invention also provides electronic equipment, which comprises a machine body and the sound cavity structure, wherein the sound cavity structure is fixedly arranged in the machine body, the thickness of the electronic equipment can be further reduced, the tone quality effect of the electronic equipment can be ensured, and in addition, the manufacturing cost of the electronic equipment cannot be additionally increased.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A sound cavity structure comprises an upper shell support, a lower shell support, a loudspeaker and a small plate, and is characterized in that a first cavity and a second cavity which are adjacently arranged are formed between the upper shell support and the lower shell support, the loudspeaker and the small plate are respectively arranged in the first cavity and the second cavity, the loudspeaker and the small plate are electrically connected, the small plate, the loudspeaker and the upper shell support enclose a sound cavity space, a first sealing element is arranged between the upper shell support and the small plate, after the upper shell support and the lower shell support are assembled, the upper shell support presses the first sealing element on the small plate to realize the sealing connection between the upper shell support and the small plate, the first sealing element is arranged along the periphery of the small plate, and an opening is arranged on one side facing the loudspeaker, the side of the small plate facing the loudspeaker is sealed by tightly pressing the upper shell support, the lower shell support and the loudspeaker.

2. The sound cavity structure as claimed in claim 1, wherein the lower casing support is provided with a surrounding bone along the periphery of the small plate, and the upper surface of the small plate is flush with the upper surface of the surrounding bone.

3. The sound cavity structure as claimed in claim 2, wherein the lower casing support is provided with a surrounding bone along the periphery of the small plate, and a second sealing member is embedded between the side wall of the surrounding bone and the side wall of the small plate.

4. The sound cavity structure as claimed in claim 3, wherein a length of auxiliary assembling bone protruding toward the upper housing support is provided on each of the surrounding bone and the second sealing member to increase the installation height of the second sealing member.

5. The sound cavity structure according to any one of claims 1-4, wherein the upper shell support is further provided with a top rib, and the side of the small plate is provided with a groove, and the top rib is embedded in the groove to limit the displacement of the small plate in the horizontal direction.

6. The sound cavity structure according to any one of claims 1-4, wherein the upper housing support is further provided with a positioning post, the small plate is provided with a positioning hole, and the positioning post is inserted into the positioning hole to limit the displacement of the small plate in the longitudinal direction.

7. The sound cavity structure according to any one of claims 1-4, wherein a buckle is further fixed on the upper housing support, and the buckle is arranged on the periphery of the small plate to limit the displacement of the small plate in the vertical direction.

8. An electronic device, comprising a body and the sound cavity structure as claimed in any one of claims 1-7, wherein the sound cavity structure is fixed to the body.