CN110784811A

CN110784811A - Loudspeaker module and electronic terminal

Info

Publication number: CN110784811A
Application number: CN201910979471.4A
Authority: CN
Inventors: 李承伟; 李振军; 陈萌
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-02-11

Abstract

The invention provides a loudspeaker module, comprising: the side wall of the shell is provided with a sound outlet; a speaker unit disposed within the housing; a sensor assembly including a conductor disposed within the housing and at least two sensors in communication with an external circuit through the conductor; a mounting hole is formed in the side wall of the shell close to the sound outlet hole, and the sensor is mounted in the mounting hole; the sensor is configured to collect an ambient signal external to the speaker module. Through a plurality of sensors of near the sound outlet, overcome speaker module function singleness problem, make full use of speaker module's microphone space, improved speaker module's space utilization.

Description

Loudspeaker module and electronic terminal

Technical Field

The present invention relates to the field of electronic products, and more particularly, to a speaker module and an electronic terminal.

Background

A loudspeaker is an electroacoustic transmitting transducer that converts electrical energy into acoustic energy. The loudspeaker module is arranged in the electronic terminal, so that the sound production function of the electronic terminal can be realized.

However, the conventional speaker has a single function and occupies a large space in the electronic terminal. The prior art proposes a technical solution for mounting a sensor at a sound outlet of a speaker. The sensor is connected with the FPCB in the loudspeaker module. The sensor of installation is used for detecting the sound size of electronic terminal external environment, and then control electronic terminal according to the testing result automatically regulated speaker module's of sensor volume.

Although the function of speaker has been richened to a certain extent to above-mentioned scheme, it does not solve the low problem of space utilization of speaker module, also does not give sensor and FPCB's mounting means simultaneously.

Therefore, there is a need for improvement of the prior art to enrich the functions of the speaker and solve the problem of low utilization of the internal space of the speaker.

Disclosure of Invention

The invention aims to provide a loudspeaker module to solve the problems of single function and low space utilization rate of the traditional loudspeaker.

Another object of the present invention is to provide an electronic terminal having the speaker module.

A speaker module, comprising: the side wall of the shell is provided with a sound outlet; a speaker unit disposed within the housing; a sensor assembly including a conductor disposed within the housing and at least two sensors in communication with an external circuit through the conductor; a mounting hole is formed in the side wall of the shell close to the sound outlet hole, and the sensor is mounted in the mounting hole; the sensor is configured to collect an ambient signal external to the speaker module.

Optionally, the sensor assembly includes three sensors, the sensors are arranged on the side wall of the housing in an inverted triangle shape, and a probe of the sensor faces the outside of the speaker module.

Optionally, the sensors are a temperature sensor, a humidity sensor and a light sensor respectively.

Optionally, the housing includes an upper housing, a middle housing and a lower housing connected to each other, and the sound outlet and the mounting hole are adjacently disposed on a side wall of the middle housing.

Optionally, the sensor and the conducting element are connected by welding.

Optionally, the housing comprises an upper shell, a middle shell and a lower shell connected to each other, and the sensor assembly is configured to be embedded in the middle shell through an injection molding process of the middle shell.

Optionally, the speaker cell is electrically connected with the conductor, the conductor being configured for conducting electrical signals to the speaker cell.

Optionally, a pad is reserved on the conductor, and the speaker module is electrically connected with the outside through the pad.

Optionally, the conductive element is a rigid circuit board.

An electronic terminal comprises the loudspeaker module, the conducting piece is electrically connected with the electronic terminal, and the sensor is configured to be used for collecting an environment signal outside the electronic terminal.

The technical scheme of the invention has the beneficial effects that: through a plurality of sensors of near the sound outlet, overcome speaker module function singleness problem, make full use of speaker module's microphone space, improved speaker module's space utilization.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is an exploded view of a speaker module according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a speaker module according to an embodiment of the invention;

fig. 3 is a schematic diagram of the connection of the components of the speaker module according to the embodiment of the invention;

the figures are labeled as follows: 1-a housing; 11-an upper shell; 12-a middle shell; 121-sound outlet holes; 122-mounting holes; 13-a lower shell; 2-a loudspeaker unit; 21-a magnetic circuit assembly; 22-a diaphragm assembly; 3-a sensor; 31-a light sensor; 32-a temperature sensor; 33-a humidity sensor; 4-a conductor; 41-a pad; 51-UV glue; 52-UV glue.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

A speaker is a commonly used sound generating device, and is built in an electronic product to serve as a sound generating device. Electronic products generally have a microphone function, so a speaker module integrating the functions of a speaker and a microphone is often used as an acoustic device. The existing loudspeaker module occupies a large space of an electronic product, and generally only has an acoustic function, and the function is relatively single. Therefore, it is necessary to improve the prior art, so as to increase the space utilization inside the speaker module while enriching the functions of the speaker module.

The invention provides a loudspeaker module, comprising: the sound emitting device comprises a shell 1, wherein a sound outlet 121 is formed in the side wall of the shell; a speaker unit 2 disposed within the housing; a sensor assembly comprising a conductor 4 disposed within the housing and at least two sensors 3 in communication with an external circuit through the conductor; a mounting hole 122 is formed on the side wall of the shell close to the sound outlet hole, and the sensor is mounted in the mounting hole; the sensor is configured to collect an ambient signal external to the speaker module.

Specifically, the speaker module comprises a housing, and a sound outlet is formed in a side wall of the housing. In order to facilitate assembly, the shell can adopt a split structure. The speaker unit 2 is further installed in the housing, and the sound outlet hole 121 is used for radiating sound generated from the speaker unit to the outside. The microphone unit is arranged in the loudspeaker module, and the sound outlet hole formed in the side wall of the shell can also be used for receiving external sound.

The loudspeaker module further comprises a sensor assembly comprising a conductor 4 arranged within the housing 1 of the loudspeaker module. The conductors are arranged to transmit electrical signals. Alternatively, the conductive element may be an electrically conductive metallic element. The sensor assembly also includes two or more sensors coupled to the conductive element and in electrical communication therewith. One end of the conduction piece is electrically communicated with the sensor, and the other end of the conduction piece is communicated with a control circuit outside the loudspeaker module. The sensor is then used for gathering the outside ambient signal of speaker module, and it transmits the ambient signal who accomplishes the collection to external circuit through the conduction spare. The environment signal can be information such as sound, temperature, light, color and the like. The user can set the kind of sensor as desired. An external control circuit responds according to the acquired ambient signal. The side wall of the shell close to the sound outlet hole is provided with a mounting hole, and the sensor is mounted in the mounting hole. The position of the installation hole is arranged in the microphone space of the loudspeaker module. The installation mode of sensor has effectively utilized the microphone space of speaker module, has improved the space utilization of speaker module. The sensor detects the environmental signal, the control circuit outside the loudspeaker module responds according to the signal, and the electronic terminal connected with the loudspeaker module is used for providing corresponding service for a user, so that the function diversification of the loudspeaker module is realized.

Specifically, three sensors are arranged on the side wall of the loudspeaker module housing in an inverted triangular arrangement. The side wall is provided with mounting holes with the same number as the sensors for mounting the sensors. The mounting holes are also arranged in an inverted triangle shape, and the arrangement mode of the mounting holes is the same as that of the sensors. The sound outlet and the mounting hole are positioned on the same side wall of the shell and are close to each other. Optionally, the sensors may also be arranged in a line on the side wall of the housing, and the mounting holes are correspondingly opened in a line. The arrangement mode of the sensors is not particularly limited, and the space of the original loudspeaker module can be utilized as long as the sensors are arranged. The sensor is configured to detect an environment outside the speaker module, so the probe of the sensor can be directed to the outside of the speaker module. In this way, a variety of touch signals may be detected by the sensor.

Alternatively, the sensors are a temperature sensor 32, a humidity sensor 33 and a light sensor 31, respectively.

When three sensors are provided on the side wall of the housing, a temperature sensor, a humidity sensor, and a light sensor may be selected for detecting the temperature, humidity, and illumination intensity of the outside, respectively. The electronic terminal connected with the loudspeaker module can adjust parameters of the electronic terminal according to detection results to meet user requirements, and therefore better user experience is provided.

Optionally, the housing includes an upper shell 11, a middle shell 12 and a lower shell 13 connected to each other, and the sound outlet and the mounting hole are adjacently disposed on a side wall of the middle shell.

Can process into last casing, well casing and the casing down that can interconnect with the shell, at this moment, well casing is as the main part of shell, and the mounting hole of sound outlet and sensor is all seted up on the lateral wall of well casing, and sound outlet and mounting hole adjacent set up. Be close to the sound outlet and set up the sensor mounting hole, be favorable to improving the space utilization of speaker module. The loudspeaker module still includes two-layer UV glues, and UV glues and has played the fixed and sealed effect of bonding. The upper shell is used as an upper cover of the middle shell, the UV glue 51 is filled between the upper shell and the middle shell, and the upper shell is fixedly bonded with the middle shell through the UV glue. The lower shell is used as a bottom support of the middle shell, the UV glue 52 is filled between the middle shell and the lower shell, and the lower shell is fixedly bonded with the middle shell through the UV glue. Divide into the polylith with the shell of speaker module, made things convenient for the equipment of shell on the one hand, on the other hand is favorable to making things convenient for the part installation in the speaker module.

Optionally, the sensor and the conducting element are connected by welding. With sensor and conduction spare welded connection, not only can make both connect reliably, can guarantee the electric intercommunication of sensor and conduction spare simultaneously.

The middle shell can be used as a main body of the loudspeaker module shell, and the components such as the loudspeaker single body and the like can be intensively arranged on the middle shell. At this time, the structure of the middle shell is complex, and in order to reduce the manufacturing cost of the middle shell, the middle shell can be formed by an injection molding mode. Therefore, the manufacturing cost of the middle shell is reduced, and the forming efficiency is improved. The injection molding process of the middle shell can adopt the following steps: firstly, connecting the sensor with the conduction piece in a welding mode, such as welding by using laser as a heat source; then, placing the connecting body of the sensor and the conducting piece in a mold for injection molding of the middle shell; and finally, performing injection molding in a mold to obtain the middle shell. In this case, after the injection molding of the middle case is completed, the connecting body of the sensor and the conductive member is embedded in the middle case, and the probe of the sensor is exposed outside the middle case. A portion of the conductor is also exposed outside the mid-housing for connection to an external control circuit. The material of the middle shell can be plastic capable of being injection molded, such as ABS, PA and the like. The invention is not limited in this regard. With the integrative injection moulding of connector and well casing of sensor and conduction piece, greatly simplified the installation of sensor and conduction piece, improved the assembly efficiency of speaker module.

Optionally, the speaker unit 2 is electrically connected with the conductor 4, which is configured to conduct electrical signals to the speaker unit.

The speaker unit includes a magnetic circuit member 21 and a vibration member 22. And an electric signal is introduced into the vibration assembly, and the vibration assembly vibrates under the action of a magnetic field of the magnetic circuit system to drive air to vibrate, so that sound production is realized. The vibration component is electrically connected with the conduction piece, the conduction piece is used for receiving an electric signal of an external circuit and transmitting the electric signal to the loudspeaker single body, and the loudspeaker single body converts the received electric signal into sound to realize electroacoustic transduction. At this time, the conduction member not only plays a role of transmitting an external electric signal to the speaker unit, but also plays a role of transmitting a signal collected by the sensor to an external control circuit. The setting up of this conduction piece can obviously reduce the structural complexity of speaker module internal circuit, has alleviateed holistic weight simultaneously, has certain contribution to the acoustic performance of speaker module.

Optionally, a pad 41 is reserved on the conductor, and the speaker module is electrically connected with the outside through the pad.

After the middle shell is molded, the welding disc on the conducting piece is exposed outside the middle shell. The reserved bonding pad is connected with a control circuit outside the loudspeaker module. The external circuit passes through the pad and lets in the signal of telecommunication to the conduction piece, and the sensor is transmitted the signal of gathering to external control circuit by the conduction piece through the pad simultaneously. Namely, the loudspeaker module is electrically connected with the outside through a bonding pad reserved on the conducting piece.

Optionally, the conductive element is a rigid circuit board.

The conductive piece can be a hard circuit board, and the hard circuit board consists of a base material, a circuit, a drawing and the like. The substrate is usually made of a material which is insulating and heat-insulating and is not easily bent and deformed. The circuit is used as a tool for conducting between elements, and a large copper surface is additionally designed on the design as a grounding and power supply layer. The hard circuit board is integrated with transmission channels respectively used for signal transmission of the loudspeaker monomer and the sensor, and a welding disc connected with an external control circuit is reserved on the hard circuit board. When the loudspeaker module is used, the welding disc is welded with the control circuit, and the loudspeaker module can be electrically connected with an external circuit.

The invention also provides an electronic terminal which comprises the loudspeaker module, the conducting piece is electrically connected with the electronic terminal, and the sensor is configured to be used for collecting environmental signals outside the electronic terminal.

The loudspeaker module is arranged in the electronic terminal, and the loudspeaker single body in the shell can be electrically connected with the electronic terminal through the conducting piece. Specifically, the loudspeaker single body is electrically connected with the electronic terminal through a bonding pad reserved on the conducting piece. The speaker module may further include an electrical signal transmission channel independent of the conductor through which the speaker cell is in electrical communication with the electronic terminal. The invention is not limited in this regard. When the loudspeaker module is installed, the sound outlet on the shell corresponds to the sound outlet on the electronic terminal, so that sound can radiate outwards conveniently. The probe of the sensor is exposed out of the electronic terminal and used for collecting environmental signals outside the electronic terminal. The sensor transmits the acquired signal to a control circuit of the electronic terminal through a transmission piece connected with the sensor, and the electronic terminal responds corresponding to the acquired signal. For example, the electronic terminal may be a mobile phone, the sensor collects the illumination intensity of the environment, transmits the collected illumination intensity signal to the mobile phone, and the mobile phone adjusts the screen brightness according to the illumination intensity, so as to ensure that the user can clearly identify the screen information. In addition, the sensor can collect various signals, such as sound, temperature, distance and the like, and the electronic terminal is controlled to make corresponding adjustment so as to adapt to the requirements of users.

The loudspeaker module provided by the invention has the advantage of multiple functions, and the installation position of the sensor effectively utilizes the space of the loudspeaker module. The speaker unit is electrically connected to an external circuit through the conductor, so that the structure in the speaker module can be simplified. With the integrative injection moulding of connecting piece and well casing of sensor and conduction piece, simplified the assembling process of speaker module, improved the manufacturing efficiency of well casing simultaneously.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A speaker module, comprising:

the side wall of the shell is provided with a sound outlet;

a speaker unit disposed within the housing;

a sensor assembly including a conductor disposed within the housing and at least two sensors in communication with an external circuit through the conductor;

a mounting hole is formed in the side wall of the shell close to the sound outlet hole, and the sensor is mounted in the mounting hole; the sensor is configured to collect an ambient signal external to the speaker module.

2. The speaker module as claimed in claim 1, wherein the sensor assembly comprises three sensors, the sensors are arranged on the side wall of the housing in an inverted triangle shape, and the probes of the sensors face the outside of the speaker module.

3. The speaker module as claimed in claim 2, wherein the sensors are a temperature sensor, a humidity sensor and a light sensor, respectively.

4. The speaker module as claimed in claim 1, wherein the housing comprises an upper shell, a middle shell and a lower shell connected to each other, and the sound outlet and the mounting hole are adjacently disposed on a sidewall of the middle shell.

5. The speaker module as claimed in any one of claims 1-4, wherein the sensor is connected to the conductive member by welding.

6. The speaker module as recited in claim 5, wherein the enclosure comprises an upper shell, a middle shell and a lower shell connected to each other, the sensor assembly being configured to be embedded within the middle shell by an injection molding process of the middle shell.

7. The speaker module as claimed in claim 1, wherein the speaker unit is electrically connected to the conductor, the conductor being configured to conduct electrical signals to the speaker unit.

8. The speaker module as claimed in claim 1, wherein a pad is reserved on the conductive member, and the speaker module is electrically connected to the outside through the pad.

9. The speaker module as recited in claim 8, wherein the conductive element is a rigid circuit board.

10. An electronic terminal, comprising a speaker module according to any of claims 1-9, wherein the conductive element is electrically connected to the electronic terminal, and wherein the sensor is configured to collect an ambient signal external to the electronic terminal.