CN111083263A

CN111083263A - Loudspeaker sound output structure of terminal equipment

Info

Publication number: CN111083263A
Application number: CN201911387804.0A
Authority: CN
Inventors: 张正春
Original assignee: Shanghai Wingtech Electronic Technology Co Ltd
Current assignee: Shanghai Wingtech Electronic Technology Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-28

Abstract

The invention discloses a loudspeaker sound output structure of terminal equipment, which comprises an upper shell, a lower shell, a loudspeaker and an earphone seat, wherein the upper shell and the lower shell are connected together, an installation cavity is formed between the upper shell and the lower shell, the loudspeaker is fixedly connected between the upper shell and the lower shell, a sound cavity is enclosed between a sound output surface of the loudspeaker and the upper shell, one end of the installation cavity extends to the edge of the upper shell and the lower shell to form an opening, the other end of the installation cavity is communicated with the sound cavity, the earphone seat is connected in the installation cavity in a penetrating manner through the opening and is fixedly connected with the upper shell and the lower shell, an earphone jack is arranged on the earphone seat, the earphone jack extends from one end surface of the earphone seat close to the opening to one end of the earphone seat far away from the opening, and a through hole for communicating the installation cavity with the earphone jack is arranged. The technology of the invention does not need to additionally arrange sound outlet holes on the terminal equipment, thereby reducing the number of the holes on the shell of the terminal equipment.

Description

Loudspeaker sound output structure of terminal equipment

Technical Field

The invention relates to the technical field of electronics, in particular to a loudspeaker sound output structure of terminal equipment.

Background

Like cell-phone, pad etc. terminal equipment, the vibrating diaphragm that utilizes loudspeaker usually changes the signal of telecommunication into sound, then passes to the terminal equipment outside through the play sound hole of seting up on the terminal equipment casing, and simultaneously, still need set up the earphone jack in addition on the casing of terminal equipment, like this, the hole that sets up in the casing outside is more, and water and dust get into inside the terminal equipment through the hole easily, consequently, how to integrate the hole on the terminal equipment to reduce the quantity of trompil on the terminal equipment casing, become the problem of treating urgently.

Disclosure of Invention

The invention mainly aims to provide a loudspeaker sound outlet structure of terminal equipment, which can enable a sound outlet hole and an earphone jack to be shared so as to reduce the number of holes on a shell of the terminal equipment.

In order to achieve the purpose, the invention adopts the following technical scheme:

the loudspeaker sound emitting structure of the terminal equipment comprises an upper shell, a lower shell, a loudspeaker and an earphone seat, wherein the upper shell and the lower shell are connected together, and a mounting cavity is formed between the upper shell and the lower shell, the horn is fixedly connected between the upper shell and the lower shell, and a sound cavity is enclosed between the sound outlet surface of the loudspeaker and the upper shell, one end of the installation cavity extends to the edges of the upper shell and the lower shell to form an opening, the other end of the mounting cavity is communicated with the sound cavity, the earphone seat is connected in the mounting cavity in a penetrating way through the opening and is fixedly connected with the upper shell and the lower shell, the earphone seat is provided with an earphone jack, the earphone jack is extended towards one end of the earphone seat away from the opening from the end face of the end close to the opening of the earphone seat, and the earphone seat is provided with a through hole which communicates the installation cavity with the earphone jack.

Preferably, the earphone seat is hermetically matched with the opening of the installation cavity.

Preferably, a fixing ring is installed on the end face, close to the opening, of the earphone seat, and the fixing ring is in airtight fit with the upper shell and the lower shell.

Preferably, the inner surface of the upper shell is convexly provided with an annular convex rib, the inner edge of the convex rib is provided with a step surface, the edge of the sound outlet surface of the loudspeaker abuts against the step surface, the lower shell abuts against the lower surface of the loudspeaker, and the sound cavity is enclosed by the upper shell, the convex rib and the sound outlet surface of the loudspeaker.

Preferably, one side of the convex rib close to the installation cavity forms a limiting wall, and a sound guide hole for communicating the sound cavity with the installation cavity is formed in the limiting wall.

Preferably, the lower shell is provided with a positioning flange abutting against the limiting wall.

Preferably, a gap is formed between the earphone seat and the inner wall of the mounting cavity, and through holes extending to the earphone jack are formed in the upper surface and the lower surface of the earphone seat.

According to the technical scheme, the earphone jack is used as a part of the sound guide channel to transmit sound emitted by the loudspeaker, so that the earphone jack has the function of a sound outlet hole, the sound outlet hole is not required to be additionally arranged on the terminal equipment, the number of holes formed in the shell of the terminal equipment is reduced, the earphone jack is relatively large in size, loss caused in the sound transmission process can be reduced, and user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the upper housing of FIG. 1;

FIG. 3 is a schematic view of the structure of the earphone base of FIG. 1;

fig. 4 is a cross-sectional view of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, 2, 3, and 4, a speaker sound emitting structure of a terminal device according to the present invention includes an upper casing 20, a lower casing 30, a speaker 10, and an earphone seat 40, where the upper casing 20 and the lower casing 30 are connected together, and the two may be fastened together by screws or fixed together by laser welding, the speaker 10 is fixed between the upper casing 20 and the lower casing 30, an upper surface of the speaker 20 is a sound emitting surface 11, and a sound cavity a is defined between the sound emitting surface 11 and the upper casing 20. An installation cavity is formed by the upper shell 20 and the lower shell 30, one end of the installation cavity extends to the surface of a shell assembly formed by the upper shell 20 and the lower shell 30 to form an opening, and the other end of the installation cavity is communicated with the sound cavity A; specifically, a concave 25 extending to the edge of the upper case 20 is formed on the lower case 30, a concave 32 extending to the edge of the lower case is formed on the lower case 30, after the upper case 20 and the lower case 30 are fixed together, the concave 25 and the concave 32 are closed to form the installation cavity, the earphone seat 40 is inserted into the installation cavity through the opening, an earphone jack 41 is arranged on the earphone seat 40, the earphone jack extends from the outer end surface (i.e. the end surface close to the opening end) of the earphone seat 40 to the inner end (i.e. the end far from the opening) of the earphone seat 40, a through hole 43 is arranged on the earphone seat 40, the through hole 43 extends from the surface of the earphone seat 43 to the inside of the earphone jack 41, i.e. the through hole 43 communicates the installation cavity with the earphone jack 41, therefore, the sound cavity a is communicated with the earphone jack 41 through the installation cavity and the through hole 43, i.e. the installation cavity, the through hole 43 and the earphone jack 41 form a sound, the sound emitted from the sound emitting surface 11 of the speaker 10 can be transmitted to the outside of the upper and

lower cases

20 and 30 through the sound guide passage.

The loudspeaker 10 of the invention is connected with the main board of the terminal equipment through the FPC, after the signal on the main board is transmitted into the loudspeaker 10 through the FPC12, the loudspeaker 10 converts the electronic signal into sound, and the sound is transmitted out from the earphone jack 41 through the sound guide channel. In the scheme, the earphone jack is used as a part of the sound guide channel to transmit the sound emitted by the loudspeaker, so that the earphone jack has the function of a sound hole, the sound hole does not need to be additionally formed in the terminal equipment, the number of holes formed in the shell of the terminal equipment is reduced, the size of the earphone jack is relatively large, the loss caused in the sound transmission process can be reduced, and the user experience is improved.

In a preferred embodiment, in order to ensure the normal use of the earphone jack 41 and the external aesthetic property of the terminal device, the earphone seat 40 of the present invention is hermetically fitted to the opening of the installation cavity, that is, after the earphone seat 40 is inserted into the installation cavity through the opening, the outer end of the earphone seat 40 just covers the opening and is hermetically fitted to the upper casing 20 and the lower casing 30. Furthermore, a fixing ring 42 may be installed on an end surface of an outer side end of the earphone seat 40, a peripheral edge of the fixing ring 42 has a portion protruding out of an outer surface of the earphone seat 40, and the protruding portion of the fixing ring 42 is used to compress the upper casing 20 and the lower casing 30 and is in close fit with the upper casing 20 and the lower casing 30; it should be noted that the structure of the earphone seat 40 and the upper and

lower shells

20 and 30 can be in other forms, for example, a sealing rubber strip is clamped between the upper and

lower shells

20 and 30 and the earphone seat 40 to achieve sealing.

In another preferred embodiment, in order to make the sound cavity a have enough volume, the present invention provides a ring-shaped rib 22 protruding from the inner surface of the upper shell 20, the inner edge of the rib 22 provides a step surface 221, the edge of the sound outlet surface 11 of the horn 10 abuts on the step surface 221, the lower shell 30 abuts on the lower surface of the horn 10, thus, the inner surface of the lower housing 30 and the step surface 221 are used to clamp the horn 10 to limit the degree of freedom of the horn 10 in the thickness direction of the upper housing 20 and the lower housing 30, the ribs 22 are disposed around the periphery of the horn 10 to prevent the horn 10 from moving laterally, so as to fix the horn 10, the speaker 10 is supported by the step surface 221, so that the sound emitting surface 11 of the speaker 10 is spaced apart from the upper case 20 by a predetermined distance, thus, the sound cavity a is surrounded by the upper case 20, the rib 22, and the sound output surface 11, and the sound cavity a has a sufficient volume. In addition, a limiting wall 23 is formed on one side of the rib 22 close to the installation cavity, and a sound guiding hole 24 is formed in the limiting wall 23, and the sound guiding hole 24 conducts the sound cavity a with the installation cavity. In addition, a gap is formed between the earphone seat 40 and the inner wall of the installation cavity, specifically, the inner side portion of the earphone seat 40 is in clearance fit with the inner surface of the installation cavity, so that the earphone seat 40 is provided with a through hole 43, the through hole 43 can conduct the installation cavity with the earphone jack 41, and the earphone seat 40 can be provided with two through holes 43, the two through holes 43 respectively extend from the upper surface and the lower surface of the earphone seat 40 to the earphone jack 41, so that sound is guided to the earphone jack 41 through the two through holes 43, which is more beneficial to sound transmission.

In addition, a positioning flange 31 is provided on the lower case 30, the positioning flange 31 abuts against the stopper wall 23, and when the upper case 20 and the lower case 30 are mounted, the positioning flange 31 abuts against the stopper wall 23 to position the upper case 20 and the lower case 30 in the mounting.

The terminal equipment can be a mobile phone, a pad, intelligent wearable equipment and the like.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The loudspeaker sound emitting structure of the terminal equipment is characterized by comprising an upper shell, a lower shell, a loudspeaker and an earphone seat, wherein the upper shell and the lower shell are connected together, and a mounting cavity is formed between the upper shell and the lower shell, the horn is fixedly connected between the upper shell and the lower shell, and a sound cavity is enclosed between the sound outlet surface of the loudspeaker and the upper shell, one end of the installation cavity extends to the edges of the upper shell and the lower shell and forms an opening, the other end of the mounting cavity is communicated with the sound cavity, the earphone seat is connected in the mounting cavity in a penetrating way through the opening and is fixedly connected with the upper shell and the lower shell, the earphone seat is provided with an earphone jack, the earphone jack is extended towards one end of the earphone seat away from the opening from the end face of the end close to the opening of the earphone seat, and the earphone seat is provided with a through hole which communicates the installation cavity with the earphone jack.

2. The speaker sound emitting structure of the terminal device according to claim 1, wherein the earphone seat is hermetically fitted to the opening of the installation cavity.

3. The speaker sound emitting structure of the terminal device according to claim 2, wherein a fixing ring is mounted on an end surface of the earphone seat near the opening, and the fixing ring is hermetically fitted to the upper housing and the lower housing.

4. The speaker sound emitting structure of a terminal device according to claim 1, wherein a rib having a ring shape is convexly provided on an inner surface of the upper case, an inner edge of the rib is provided with a step surface, an edge of the speaker sound emitting surface abuts on the step surface, the lower case abuts on a lower surface of the speaker, and the sound cavity is defined by the upper case, the rib, and the sound emitting surface of the speaker.

5. The speaker sound-emitting structure of a terminal device as claimed in claim 4, wherein a side of the rib near the mounting cavity forms a limiting wall, and the limiting wall is provided with a sound guide hole communicating the sound cavity and the mounting cavity.

6. The speaker sound emitting structure of a terminal device according to claim 5, wherein a positioning flange abutting on the stopper wall is provided on the lower case.

7. The speaker sound emitting structure of the terminal device according to claim 4, wherein a gap is formed between the earphone seat and the inner wall of the mounting cavity, and through holes extending to the earphone jack are formed on both the upper surface and the lower surface of the earphone seat.