CN221240496U

CN221240496U - Speaker module and electronic equipment

Info

Publication number: CN221240496U
Application number: CN202323139241.8U
Authority: CN
Inventors: 张俊利; 张文华
Original assignee: Shenzhen Weishi Acoustics Co Ltd
Current assignee: Shenzhen Weishi Acoustics Co Ltd
Priority date: 2023-11-20
Filing date: 2023-11-20
Publication date: 2024-06-28
Anticipated expiration: 2033-11-20

Abstract

The utility model discloses a loudspeaker module and electronic equipment, wherein the loudspeaker module comprises a module shell, a loudspeaker monomer and a vibration motor, the module shell is provided with a rear cavity and a mounting cavity, and a through hole communicated with the rear cavity is formed in the module shell; the loudspeaker monomer is arranged in the mounting cavity, and the inner space of the loudspeaker monomer is communicated with the rear cavity; the vibration motor is arranged in the rear cavity, the vibration motor comprises a shell, a vibration unit and a driving unit, the vibration unit and the driving unit are respectively arranged in the shell, the driving unit is used for driving the vibration unit, the driving unit comprises a circuit board fixed on a module shell and a coil arranged on one side of the circuit board, the circuit board is arranged corresponding to a through hole, a conducting area electrically connected with the coil is arranged on the other side of the circuit board, and the conducting area is exposed through the hole. In this speaker module, with vibrating motor integrated in the back chamber, reduced the occupation space of components and parts in electronic equipment is inside effectively, vibrating motor's conduction region adopts hole formula to expose the structure for vibrating motor's conduction structure need not to invade outer space.

Description

Speaker module and electronic equipment

Technical Field

The present utility model relates to electroacoustic transducers, and more particularly, to a speaker module and an electronic device.

Background

At present, electronic devices such as mobile phones and tablet computers enrich the lives of people, and electroacoustic converters play an indispensable role as audio devices.

However, as electronic devices are developed toward light and thin, the stacking technology of the whole design of the electronic devices is increasingly tested, and the more components are, the more the size of the electronic devices is not beneficial to be reduced, so that the integration of several components is a necessary development trend. In the prior art, although there is a technical solution of integrating a vibration motor on an electroacoustic transducer, in the prior art, the vibration motor generally needs to occupy a limited space of a magnetic circuit assembly of the electroacoustic transducer, for example, the chinese patent of utility model with the reference CN214901292U, which inevitably reduces the B value of the electroacoustic transducer, so that the acoustic performance of the electroacoustic transducer is greatly affected.

Disclosure of utility model

The technical problems solved by the utility model are as follows: provided are a speaker module integrated with a vibration motor without reducing magnetic field intensity, and an electronic device having the speaker module.

In order to solve the technical problems, the first technical scheme adopted by the utility model is as follows: a speaker module, comprising:

The module comprises a module shell, a first connecting piece and a second connecting piece, wherein the module shell is provided with a rear cavity and a mounting cavity, and a through hole communicated with the rear cavity is formed in the module shell;

The loudspeaker monomer is arranged in the mounting cavity, and the inner space of the loudspeaker monomer is communicated with the rear cavity;

the vibration motor is arranged in the rear cavity and comprises a shell, a vibration unit and a driving unit, wherein the vibration unit and the driving unit are respectively arranged in the shell, the driving unit is used for driving the vibration unit, the driving unit comprises a circuit board fixed on the module shell and a coil arranged on one side of the circuit board, the circuit board corresponds to the through hole, a conducting area electrically connected with the coil is arranged on the other side of the circuit board, and the conducting area is exposed through the through hole.

In an embodiment, the vibration unit includes balancing weight, magnet steel and piece that resets, the both ends of balancing weight are equipped with respectively reset the piece, reset the piece and connect the balancing weight with the casing, the magnet steel is located on the balancing weight and correspond to the coil sets up.

In an embodiment, the balancing weight is provided with a through groove, and the magnetic steel is arranged in the through groove.

In an embodiment, a magnetic conductive plate is disposed on a side of the balancing weight away from the driving unit.

In an embodiment, the module housing has a first wall and a second wall disposed opposite to each other, the via is disposed on the first wall, and the housing contacts the first wall and the second wall, respectively.

In one embodiment, the vibration motor is located in the center of the rear cavity.

In an embodiment, a buffer is provided between the housing and the second wall, and the housing indirectly contacts the second wall through the buffer.

In an embodiment, the module shell is provided with a venting hole communicated with the rear cavity and the outside, and a damping mesh cloth is arranged at the venting hole.

In an embodiment, the via hole is provided with a sealant contacting the circuit board, and the sealant is arranged along the edge of the via hole in a circle.

In order to solve the technical problems, the second technical scheme adopted by the utility model is as follows: the electronic equipment comprises the loudspeaker module.

The utility model has the beneficial effects that: in this speaker module, with vibrating motor integrated in the back chamber, reduced the occupation space of components and parts in electronic equipment inside effectively, satisfied the development trend that electronic equipment frivolous, moreover, vibrating motor's conduction region adopts hole formula structure that exposes for vibrating motor's conduction structure need not to encroach on the external space, does benefit to the occupation space of further reducing components and parts in electronic equipment inside, makes the space availability of electronic equipment inside obtain improving.

Drawings

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

Fig. 1 is a schematic structural diagram of a speaker module according to a first embodiment of the present utility model;

fig. 2 is a cross-sectional view of a speaker module according to a first embodiment of the present utility model;

Fig. 3 is a schematic structural diagram of a vibration motor in a speaker module according to a first embodiment of the present utility model.

Reference numerals illustrate:

1. A module housing; 11. a rear cavity; 12. a via hole; 13. a first wall; 14. a second wall; 15. a plastic structural member;

2. A speaker unit;

3. a vibration motor; 31. a housing; 32. a circuit board; 321. a conduction region; 33. a coil; 34. balancing weight; 35. magnetic steel; 36. a reset member; 37. a magnetic conductive plate;

4. Damping mesh cloth.

Detailed Description

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear … … are referred to merely for explaining a relative positional relationship, a movement condition, and the like between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature.

In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; 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 application can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows: electronic devices, including but not limited to cell phones, tablet computers, smart watches, and the like.

The electronic equipment comprises a body and a loudspeaker module arranged on the body, wherein the loudspeaker module comprises a module shell 1, a loudspeaker monomer 2 and a vibration motor 3, the module shell 1 is provided with a rear cavity 11 and an installation cavity, and a through hole 12 for communicating the rear cavity 11 with the outside is arranged on the module shell 1; the loudspeaker unit 2 is arranged in the mounting cavity, and the inner space of the loudspeaker unit 2 is communicated with the rear cavity 11; the vibration motor 3 is arranged in the rear cavity 11, the vibration motor 3 comprises a shell 31, a vibration unit and a driving unit, the vibration unit and the driving unit are respectively arranged in the shell 31, the driving unit is used for driving the vibration unit, the driving unit comprises a circuit board 32 fixed on the module shell 1 and a coil 33 arranged on one side of the circuit board 32, the circuit board 32 is arranged corresponding to the through hole 12, a conducting area 321 electrically connected with the coil 33 is arranged on the other side of the circuit board 32, and the conducting area 321 is exposed through the through hole 12. The circuit board 32 may be a hard PCB board or a flexible FPC board, and may be specifically selected according to actual needs; the via 321 may be a pad.

As a preferred embodiment, the installation cavity and the rear cavity 11 are arranged side by side, an air passage which communicates the installation cavity with the rear cavity 11 is arranged on the wall of the installation cavity, and the inner space of the speaker unit 2 communicates with the rear cavity 11 via the air passage. Therefore, the loudspeaker module can be flattened, and the loudspeaker module can be better suitable for light and thin electronic equipment. In other embodiments, it is also possible that the mounting cavity is located above the rear cavity 11.

Specifically, the vibration unit includes balancing weight 34, magnet steel 35 and piece 36 resets, the both ends of balancing weight 34 are equipped with respectively piece 36 resets, piece 36 can be spring, shell fragment etc. resets, piece 36 resets is connected balancing weight 34 with casing 31, magnet steel 35 locates balancing weight 34 is last and correspond the setting of coil 33.

In this embodiment, the balancing weight 34 is provided with a through slot, the magnetic steel 35 is disposed in the through slot, and a magnetic conduction plate 37 is disposed on a side of the balancing weight 34 away from the driving unit.

The module housing 1 has a first wall 13 and a second wall 14 disposed opposite to each other, the via hole 12 is disposed on the first wall 13, the housing 31 contacts the first wall 13 and the second wall 14, and the housing 31 contacts the first wall 13 and the second wall 14, so that the housing 31 can play a role of supporting the first wall 13 and the second wall 14, and prevent the first wall 13 and/or the second wall 14 from collapsing, thereby improving the structural stability of the rear cavity 11 of the speaker module.

In other embodiments, the vibration motor 3 may be located at the center of the rear cavity 11, so that the housing 31 better supports the first wall 13 and the second wall 14, thereby improving the structural strength of the speaker module to a greater extent. In the present embodiment, however, in order to reduce the influence of the operation of the vibration motor 3 on the speaker unit, the vibration motor 3 is disposed away from the mounting chamber.

Optionally, a buffer (not shown in the figure) is disposed between the housing 31 and the second wall 14, and the housing 31 indirectly contacts the second wall 14 through the buffer, where the buffer may be foam, silica gel pad, or the like. The buffer piece can reduce the impact of the vibration motor 3 on the module shell 1, so that the influence of the vibration motor 3 on the loudspeaker single body 2 is reduced, more importantly, the buffer piece can reduce the machining precision requirement and the assembly precision requirement of parts, and the manufacturing cost of the loudspeaker module is reduced.

Optionally, the module housing 1 includes a plastic structural member 15 and at least one metal plate, the plastic structural member 15 is fixedly connected with the metal plate, the mounting cavity is disposed on the plastic structural member 15, and the first wall 13 and/or the second wall 14 of the rear cavity 11 are/is the metal plate. Thus, the structural strength of the module housing 1 and the overall volume of the rear cavity 11 can be considered. When the material of the housing 31 is metal, the housing 31 may be welded to the metal plate, thereby improving the stability of the installation of the vibration motor 3.

In other embodiments, the housing 31 may be adhesively connected to the module housing 1.

In order to improve the acoustic performance of the speaker unit 2, the module housing 1 is provided with a venting hole for communicating the rear cavity 11 with the outside, and the venting hole is provided with a damping mesh 4.

Optionally, the via hole 12 is provided with a sealant contacting the circuit board 32, and the sealant is disposed along the edge of the via hole 12 in a circle, so that the tightness of the rear cavity 11 can be improved to ensure the acoustic performance of the speaker unit 2.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A speaker module, characterized in that: comprising

2. A loudspeaker module according to claim 1, wherein: the vibration unit comprises a balancing weight, magnetic steel and a resetting piece, wherein the resetting piece is arranged at two ends of the balancing weight respectively, the resetting piece is connected with the balancing weight and the shell, and the magnetic steel is arranged on the balancing weight and corresponds to the coil arrangement.

3. A loudspeaker module according to claim 2, wherein: the balancing weight is provided with a through groove, and the magnetic steel is arranged in the through groove.

4. A loudspeaker module according to claim 3, wherein: one side of the balancing weight, which is far away from the driving unit, is provided with a magnetic conduction plate.

5. A loudspeaker module according to claim 1, wherein: the module shell is provided with a first wall and a second wall which are oppositely arranged, the through hole is formed in the first wall, and the shell body is respectively contacted with the first wall and the second wall.

6. The speaker module as recited in claim 5, wherein: the vibration motor is located at the center of the rear cavity.

7. The speaker module as recited in claim 5, wherein: a buffer member is arranged between the shell and the second wall, and the shell indirectly contacts the second wall through the buffer member.

8. A loudspeaker module according to claim 1, wherein: the module shell is provided with a venting hole communicated with the rear cavity and the outside, and a damping mesh cloth is arranged at the venting hole.

9. A loudspeaker module according to claim 1, wherein: and the via hole is provided with sealant contacting the circuit board, and the sealant is arranged along the edge of the via hole in a circle.

10. An electronic device, characterized in that: comprising a loudspeaker module according to any of claims 1-9.