CN219227815U - Electronic equipment - Google Patents

Abstract

The utility model discloses electronic equipment, and belongs to the technical field of electronics. An electronic device includes: a middle frame and a speaker module; the middle frame is provided with a first accommodating bin, and the loudspeaker module is positioned in the first accommodating bin; the loudspeaker module comprises a shell and a sound generating unit, wherein the sound generating unit is positioned in the shell and divides a containing cavity in the shell into an acoustic front cavity and an acoustic rear cavity; the shell is provided with a sound outlet, and the acoustic front cavity is communicated with the sound outlet; and an expansion part is arranged on a part of the shell corresponding to the side wall of the first accommodating bin in the shell surrounding the acoustic rear cavity, and the expansion part enables the acoustic rear cavity to be expanded to the side wall of the first accommodating bin outwards. According to the electronic equipment, the volume of the acoustic rear cavity of the loudspeaker module is expanded by 10% -20%, so that the improvement of the acoustic performance of the loudspeaker module is facilitated.

Description

Electronic equipment

Technical Field

The utility model relates to the technical field of electronics, in particular to electronic equipment.

Background

The loudspeaker is a large basic functional element of the electronic equipment, and can realize scene applications such as conversation, video and audio, games and the like of the electronic equipment through electroacoustic conversion.

Along with the continuous improvement of speaker technology, the requirements of people on the acoustic performance of a speaker and the external sound effect of a mobile phone are higher, wherein, increasing the acoustic rear cavity of the speaker to improve the acoustic performance of the speaker is one way.

Disclosure of Invention

The utility model provides electronic equipment, which can improve the acoustic performance of a loudspeaker by increasing the acoustic rear cavity of the loudspeaker.

The technical scheme is as follows:

an electronic device, the electronic device comprising: a middle frame and a speaker module;

the middle frame is provided with a first accommodating bin, and the loudspeaker module is positioned in the first accommodating bin;

the loudspeaker module comprises a shell and a sound generating unit, wherein the sound generating unit is positioned in the shell and divides a containing cavity in the shell into an acoustic front cavity and an acoustic rear cavity;

the shell is provided with a sound outlet, and the acoustic front cavity is communicated with the sound outlet;

and an expansion part is arranged on the shell, which corresponds to the side wall of the first accommodating bin, in the shell surrounding the acoustic rear cavity, and the expansion part enables the acoustic rear cavity to be expanded outwards to the side wall of the first accommodating bin.

In some embodiments, a seal is provided between an edge of the expansion and a sidewall of the first receiving compartment.

In some embodiments, the seal is at least one of a silicone seal, a foam seal, and a rubber seal.

In some embodiments, the middle frame is further provided with a second receiving compartment, the second receiving compartment being separated from the first receiving compartment by a retaining wall, at least a portion of the retaining wall forming a side wall of the first receiving compartment.

In some embodiments, the electronic device further comprises a battery module located within the second housing compartment.

In some embodiments, the side of the retaining wall contacting the battery module is flat, and the height of the retaining wall is greater than or equal to 80% of the height of the battery module.

In some embodiments, the housing is provided with a first side wall adjacent to the retaining wall, and the expansion part is positioned on the first side wall;

the thickness of the first sidewall is less than or equal to the average thickness of the housing.

In some embodiments, the housing comprises a first cover and a second cover connected to enclose the receiving cavity;

the first cover body is positioned at the sounding front end of the sounding unit, and the second cover body is positioned at the sounding rear end of the sounding unit;

the sound outlet is positioned on the first cover body, and the expansion part is positioned on at least one of the first cover body and the second cover body.

In some embodiments, the middle frame is further provided with a sound transmission hole, and the sound transmission hole is located at a side edge of the middle frame and corresponds to the sound outlet.

In some embodiments, the housing is further provided with a first assembly hole, a second assembly hole is arranged in the first accommodating bin, and the first assembly hole axially coincides with the second assembly hole.

The technical scheme provided by the utility model has the beneficial effects that at least:

according to the electronic equipment, the expansion part is arranged on the part of the shell of the loudspeaker module, so that the acoustic rear cavity of the loudspeaker module can utilize the side wall of the first accommodating bin as the boundary of the acoustic rear cavity, and the volume of the acoustic rear cavity can be expanded by 10% -20% under the condition that the occupied space of the loudspeaker module in the whole equipment is not influenced, so that the improvement of the acoustic performance of the loudspeaker module is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present utility model;

FIG. 2 is an exploded view of an electronic device provided by an embodiment of the present utility model;

fig. 3 is a partial structural sectional view of an electronic device provided in an embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a structural cross-sectional view of an electronic device according to another embodiment of the present utility model;

fig. 6 is an exploded view of a speaker module according to an embodiment of the present utility model.

Reference numerals in the drawings are respectively expressed as:

1. a middle frame;

11. a first accommodation chamber; 111. a second fitting hole; 12. a second accommodation bin; 13. a retaining wall; 14. a sound transmission hole;

2. a speaker module;

21. a housing; 210. a receiving chamber; 2101. an acoustic front cavity; 2102. an acoustic back cavity; 211. a sound outlet; 212. an expansion section; 213. a first sidewall; 214. a first cover; 215. a second cover; 216. a first fitting hole;

22. a sound generating unit;

3. a seal;

4. and a battery module.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1 are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Unless defined otherwise, all technical terms used in the embodiments of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art.

The speaker in the related art is tightly wrapped by a housing, and the interior of the speaker is enclosed into a sealed rear cavity by the housing. However, the shell surrounding the rear cavity occupies space in the whole machine, and space is wasted.

In addition, the shell of the loudspeaker generally adopts a cover-type shell, so that the thickness of the shell cannot be too thin in order to ensure the tightness and operability of cover-type, thereby increasing the occupation of the shell to the internal space of the whole loudspeaker.

Therefore, the utility model provides the electronic equipment, the volume of the acoustic rear cavity of the adopted loudspeaker module is expanded by 10-20%, and the improvement of the acoustic performance of the loudspeaker module is facilitated.

The electronic equipment in the embodiment of the utility model can be a mobile phone, a tablet personal computer, a notebook computer, an intelligent bracelet, an intelligent watch, an intelligent helmet, intelligent glasses and the like. The electronic device may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device having wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, or the like, as the embodiments of the utility model are not limited in this respect.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, the present embodiment provides an electronic device, including: a middle frame 1 and a speaker module 2.

The middle frame 1 is provided with a first accommodating bin 11, and the loudspeaker module 2 is positioned in the first accommodating bin 11; the speaker module 2 includes a housing 21 and a sound generating unit 22, the sound generating unit 22 being located inside the housing 21 and dividing a housing chamber 210 inside the housing 21 into an acoustic front chamber 2101 and an acoustic rear chamber 2102; the housing 21 is provided with a sound outlet 211, and the acoustic front cavity 2101 communicates with the sound outlet 211.

An expansion 212 is provided on a part of the housing 21 corresponding to the side wall of the first accommodation chamber 11 among the housings 21 enclosing the acoustic rear chamber 2102, and the expansion 212 expands the acoustic rear chamber 2102 to the side wall of the first accommodation chamber 11.

In the electronic device of this embodiment, the extension portion 212 is disposed on the part of the casing 21 of the speaker module 2, and the extension portion 212 enables the acoustic rear cavity 2102 of the speaker module 2 to utilize the side wall of the first accommodating bin 11 as the boundary of the acoustic rear cavity 2102, so that the volume of the acoustic rear cavity 2102 is extended by 10% -20% without affecting the occupied space of the speaker module 2 in the whole machine, thereby being beneficial to the improvement of the acoustic performance of the speaker module 2.

In some possible implementations, the expansion 212 is formed after the partial housing 21 is cut away, and the acoustic rear cavity 2102 of the speaker module 2 is opened before the speaker module 2 is mated with the first housing 11. After the speaker module 2 is mated with the first housing chamber 11, the side wall of the first housing chamber 11 blocks the acoustic rear chamber 2102, so that the acoustic rear chamber 2102 is sealed. With respect to the related art, the entire space occupied by the original thickness of the case 21 is expanded to form a part of the acoustic rear cavity 2102, thereby increasing the volume of the acoustic rear cavity 2102.

As shown in connection with fig. 4, in some embodiments, a seal 3 is provided between the edge of the extension 212 and the side wall of the first receiving compartment 11. When the speaker module 2 is mated with the first housing chamber 11, the sealing member 3 seals the edge of the extension 212 to the sidewall of the first housing chamber 11, thereby ensuring an effective seal of the acoustic rear cavity 2102.

In some possible implementations, the seal 3 is at least one of a silicone seal, a foam seal, a rubber seal.

Optionally, the material of the sealing member 3 includes, but is not limited to, plastic, polystyrene foam, sponge, etc., having a certain flexible deformability.

Wherein the plastic includes, but is not limited to, plastic, rubber, etc. Polystyrene foam is formed by heating expandable polystyrene beads containing volatile liquid foaming agent, pre-expanding by heating, and heating in a mold. The foam is formed by foaming plastic particles. The material has the advantages of good elasticity, light weight, reliable performance and the like, and can play a role in buffering and absorbing energy.

As shown in connection with fig. 2, in some embodiments, the middle frame 1 is further provided with a second receiving compartment 12, the second receiving compartment 12 being separated from the first receiving compartment 11 by a retaining wall 13, at least part of the retaining wall 13 forming a side wall of the first receiving compartment 11.

In the electronic device of the present embodiment, the extension portion 212 is sealed by using the retaining wall 13 between the first accommodating bin 11 and the second accommodating bin 12, so that the inherent structure on the middle frame 1 can be fully utilized, the structural modification to the product is reduced, and the practicality and applicability of the present embodiment are improved.

As shown in connection with fig. 5, in some embodiments, the electronic device further includes a battery module 4, the battery module 4 being located within the second housing compartment 12. In the electronic device of the present embodiment, the second accommodating chamber 12 is used for accommodating the battery module 4, and due to the safety requirement of the battery module 4 itself, the current requirement around the second accommodating chamber 12 has better flatness, so as to prevent the uneven structure from puncturing the battery module 4 to cause a safety accident. So that these well-flattened walls 13 can simultaneously provide flat, sufficiently-large sealing sides for the acoustic rear cavity 2102 of the speaker module 2.

As shown in fig. 5, in some embodiments, the side of the retaining wall 13 contacting the battery module 4 is flat, and the height of the retaining wall 13 is greater than or equal to 80% of the height of the battery module 4.

The larger the area of the expansion portion 212 in this embodiment, the larger the volume of the acoustic rear cavity 2102 of the speaker module 2 that can be expanded, the larger the height of the retaining wall 13 around the second accommodating chamber 12, and the larger the effective area of the retaining wall 13 that can be used for blocking the expansion portion 212, thereby being beneficial to improving the acoustic performance of the speaker module 2.

In addition, the height of the retaining wall 13 is greater than or equal to 80% of the height of the battery module 4, which is also beneficial to providing sufficient side protection for the battery module 4 and improving the safety performance of the battery module 4.

Illustratively, the height of the retaining wall 13 is, for example, 80%, 85%, 90%, 95%, 100%, 105% or the like of the height of the battery module 4. It should be noted that the heights of the retaining wall 13 and the battery module 4 are the structural dimensions in the stacking direction of the entire machine. 80% of the height of the battery module 4 is 0.8 times the height of the battery module 4, for example, when the height of the battery module 4 is 0.4mm, 80% of the height of the battery module 4 is 0.32mm, and the height of the retaining wall 13 is at least 0.32mm.

In addition, the maximum height of the retaining wall 13 can be reasonably selected according to the stacking requirement of the whole machine, and the utility model is not limited to this.

As shown in connection with fig. 5 and 6, in some embodiments, the housing 21 is provided with a first side wall 213 adjacent to the retaining wall 13, and the extension 212 is located on the first side wall 213; the thickness of the first sidewall 213 is less than or equal to the average thickness of the housing 21.

On the first side wall 213 of the speaker module 2, due to the existence of the extension portion 212, the first side wall 213 does not need to be subjected to ultrasonic welding or glue welding, so that the thickness of the first side wall 213 can be thinned as much as possible, thereby reducing the whole machine space occupied by the first side wall 213, further increasing the volume of the acoustic rear cavity 2102 and improving the acoustic performance of the speaker module 2.

As shown in connection with fig. 4 and 6, in some embodiments, the housing 21 includes a first cover 214 and a second cover 215, the first cover 214 and the second cover 215 being connected to enclose a receiving cavity 210; the first cover 214 is located at the sounding front end of the sounding unit 22, and the second cover 215 is located at the sounding rear end of the sounding unit 22; the sound outlet 211 is located on the first cover 214, and the expansion portion 212 is located on at least one of the first cover 214 and the second cover 215.

The sound generating unit 22 of the speaker module 2 is covered by the first cover 214 and the second cover 215, the sound generating front end of the first cover 214 and the sound generating unit 22 enclose an acoustic front cavity 2101, and the sound generating rear end of the second cover 215 and the sound generating unit 22, a part of the first cover 214 and a part of the retaining wall 13 enclose an acoustic rear cavity 2102.

Wherein the front and rear sound emitting ends of the sound emitting unit 22 are based on the direction in which sound is transmitted outward.

Optionally, the extension 212 is located on the first cover 214; alternatively, the extension 212 is located on the second cover 215; still alternatively, a portion of the extension 212 is located on the first cover 214 and the remaining portion is located on the second cover 215.

As shown in fig. 3 and 5, in some embodiments, the middle frame 1 is further provided with a sound transmission hole 14, and the sound transmission hole 14 is located at a side edge of the middle frame 1 and corresponds to the position of the sound outlet 211. With the sound outlet 211 and the sound-transmitting hole 14, the sound signal emitted from the sound emitting unit 22 can be transmitted to the outside of the electronic apparatus.

As shown in connection with fig. 2, in some embodiments, the housing 21 is further provided with a first assembly hole 216, and the first accommodating chamber 11 is provided with a second assembly hole 111 therein, and the first assembly hole 216 axially coincides with the second assembly hole 111. The speaker module 2 can be fixed in the first housing chamber 11 with fasteners such as screws by the first fitting hole 216 and the second fitting hole 111.

It should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model.

The foregoing description of the embodiments of the utility model is not intended to limit the utility model, but rather, the utility model is to be construed as limited to the embodiments disclosed.

Claims (10)

1. An electronic device, the electronic device comprising: a middle frame (1) and a loudspeaker module (2);

the middle frame (1) is provided with a first accommodating bin (11), and the loudspeaker module (2) is positioned in the first accommodating bin (11);

the loudspeaker module (2) comprises a shell (21) and a sound generating unit (22), wherein the sound generating unit (22) is positioned in a containing cavity (210) in the shell (21) and divides the containing cavity (210) into an acoustic front cavity (2101) and an acoustic rear cavity (2102);

the shell (21) is provided with a sound outlet (211), and the acoustic front cavity (2101) is communicated with the sound outlet (211);

an expansion part (212) is arranged on the shell (21) of a part, corresponding to the side wall of the first accommodating bin (11), of the shell (21) surrounding the acoustic rear cavity (2102), and the expansion part (212) enables the acoustic rear cavity (2102) to be expanded to the side wall of the first accommodating bin (11) outwards.

2. The electronic device according to claim 1, characterized in that a seal (3) is provided between the edge of the expansion (212) and the side wall of the first housing compartment (11).

3. The electronic device according to claim 2, wherein the sealing member (3) is at least one of a silicone sealing ring, a foam sealing ring, and a rubber sealing ring.

4. The electronic device according to claim 1, characterized in that the intermediate frame (1) is further provided with a second housing compartment (12), the second housing compartment (12) being separated from the first housing compartment (11) by a retaining wall (13), at least part of the retaining wall (13) forming a side wall of the first housing compartment (11).

5. The electronic device according to claim 4, further comprising a battery module (4), the battery module (4) being located within the second housing compartment (12).

6. The electronic device according to claim 5, characterized in that the side of the retaining wall (13) contacting the battery module (4) is flat, and the height of the retaining wall (13) is greater than or equal to 80% of the height of the battery module (4).

7. The electronic device according to claim 4, characterized in that the housing (21) is provided with a first side wall (213) located close to the retaining wall (13), the expansion (212) being located on the first side wall (213);

the thickness of the first side wall (213) is less than or equal to the average thickness of the housing (21).

8. The electronic device according to claim 1, wherein the housing (21) comprises a first cover (214) and a second cover (215), the first cover (214) and the second cover (215) being connected to enclose the accommodation cavity (210);

the first cover body (214) is positioned at the sounding front end of the sounding unit (22), and the second cover body (215) is positioned at the sounding rear end of the sounding unit (22);

the sound outlet (211) is positioned on the first cover body (214), and the expansion part (212) is positioned on at least one of the first cover body (214) and the second cover body (215).

9. The electronic device according to any one of claims 1-8, wherein the middle frame (1) is further provided with a sound transmission hole (14), and the sound transmission hole (14) is located at a side edge of the middle frame (1) and corresponds to the sound outlet (211) in position.

10. The electronic device according to any one of claims 1-8, characterized in that the housing (21) is further provided with a first assembly hole (216), a second assembly hole (111) is provided in the first housing compartment (11), and the first assembly hole (216) axially coincides with the second assembly hole (111).

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