Loudspeaker module

Abstract

The utility model discloses a loudspeaker module, which comprises a module shell, an electroacoustic device and a loudspeaker monomer, a first mounting cavity and a second mounting cavity are arranged in the module shell, the module shell is provided with a sound production channel communicated with the outside and the first mounting cavity and an air flow channel communicated with the outside and the second mounting cavity, and the sound production channel is integrally Y-shaped. The sound production channel comprises two sub-channels and a convergence channel, one end of the convergence channel is connected with the two sub-channels, the other end of the convergence channel is communicated with the outer surface of the module shell, and the second mounting cavity is located above the sound production channel; the electroacoustic device is arranged in the second mounting cavity, and the electroacoustic device is a sound production unit and / or a receiver; the loudspeaker single body is arranged in the first installation cavity and comprises an outer magnetic circuit assembly, a vibration assembly, an upper cover, an upper annular inner magnetic assembly, a lower cover and a lower annular inner magnetic assembly. The loudspeaker module is novel in structure, high in integration level and excellent in acoustic performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a loudspeaker module. Background Art

[0002] Nowadays, mobile terminals such as mobile phones and tablets are enriching people's lives, and electroacoustic converters play an indispensable role as audio devices.

[0003] As consumers have increasingly higher requirements for the sound quality and loudness of mobile terminals, the performance of speaker modules needs to be further improved. Moreover, in mobile terminals, there are often multiple electroacoustic transducers, but the overall internal space of the mobile terminal is limited, and the integration of multiple electroacoustic transducers arranged in a dispersed manner is low, making it increasingly difficult to meet the needs of mobile terminal development. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a high-performance loudspeaker module with high integration.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a speaker module, comprising:

[0006] A module housing, wherein a first mounting cavity and a second mounting cavity are provided within the module housing. The module housing is provided with a sound channel connecting the outside world with the first mounting cavity and an air flow channel connecting the outside world with the second mounting cavity. The sound channel is Y-shaped as a whole and includes two sub-channels and a converging channel. One end of the converging channel connects the two sub-channels, and the other end of the converging channel connects to the outer surface of the module housing. The second mounting cavity is located above the sound channel.

[0007] an electroacoustic device, the electroacoustic device being disposed in the second mounting cavity, the electroacoustic device being a sounding unit and / or a receiver;

[0008] A speaker unit, the speaker unit is arranged in the first installation cavity, and the speaker unit includes

[0009] An outer magnetic circuit assembly, the outer magnetic circuit assembly comprising an annular outer magnetic steel, an upper annular outer washer provided on the top surface of the annular outer magnetic steel, and a lower annular outer washer provided on the bottom surface of the annular outer magnetic steel;

[0010] A vibration assembly, comprising an upper diaphragm assembly, an upper voice coil, a middle sticker, a lower voice coil, and a lower diaphragm assembly, wherein the middle sticker is located inside the outer magnetic circuit assembly, the top surface of the middle sticker is connected to the upper voice coil, the bottom surface of the middle sticker is connected to the lower voice coil, the upper diaphragm assembly is connected to the top of the outer magnetic circuit assembly and the upper voice coil, and the lower diaphragm assembly is connected to the bottom of the outer magnetic circuit assembly and the lower voice coil;

[0011] An upper cover connected to the top of the outer magnetic circuit assembly, with an upper sound outlet provided on one side of the upper cover, the upper sound outlet being connected to one of the sub-channels;

[0012] an upper annular inner magnetic assembly, the upper annular inner magnetic assembly comprising an upper annular inner magnetic steel connected to the upper cover, an upper magnetic gap formed between the upper annular inner magnetic assembly and the outer magnetic circuit assembly for movement of the upper voice coil, and an upper channel provided on the upper annular inner magnetic steel for communication with the upper sound outlet;

[0013] a lower cover, the lower cover being connected to the bottom of the outer magnetic circuit assembly, and a lower sound outlet being provided on one side of the lower cover, the lower sound outlet being connected to another sub-channel;

[0014] The lower annular inner magnetic assembly includes a lower annular inner magnetic steel connected to the lower cover, a lower magnetic gap is formed between the lower annular inner magnetic assembly and the outer magnetic circuit assembly for the movement of the lower voice coil, and a lower channel connected to the lower sound outlet is provided on the lower annular inner magnetic steel.

[0015] In one embodiment, the sound channel and the air flow channel are connected to the same side of the module housing.

[0016] In one embodiment, the sub-channel connected to the upper sound outlet has a bending portion, and the bending portion of the sub-channel is used to avoid the second installation cavity.

[0017] In one embodiment, the upper annular inner magnetic assembly in the speaker unit further includes an upper annular inner washer, and the bottom surface of the upper annular inner magnetic steel is connected to the upper annular inner washer.

[0018] In one embodiment, the lower annular inner magnetic assembly in the speaker unit further includes a lower annular inner washer, and the top surface of the lower annular inner magnetic steel is connected to the lower annular inner washer.

[0019] In one embodiment, the upper cover and the lower cover of the speaker unit are respectively made of magnetic conductive metal materials.

[0020] In one embodiment, the upper channel in the speaker unit is disposed close to and corresponding to the upper sound outlet.

[0021] In one embodiment, the upper channel in the speaker unit is connected to the interface between the upper annular inner magnetic steel and the upper cover.

[0022] In one embodiment, the speaker unit has a vertically symmetrical structure.

[0023] In one embodiment, the module housing has an upper window and a lower window that are arranged opposite to each other, a partial area of ​​the upper cover is located in the upper window, and a partial area of ​​the lower cover is located in the lower window.

[0024] The beneficial effects of the present invention are as follows: the structure of the speaker module is novel, and the speaker units installed therein adopt a dual voice coil structure that shares a common center patch, which effectively improves the acoustic performance of the speaker module, improves the resonance problem of the speaker units, and helps to increase the consumer experience. In the speaker module, both the upper cover and the lower cover of the speaker unit can be exposed to the module housing. Compared with the conventional back-to-back structure, the thickness of the speaker module is thinner; moreover, the two sound outlets of the speaker unit are connected to the same confluence channel, and the speaker module has only one sound outlet. Under certain circumstances, the sound is canceled out, so that a private call is formed in the call mode of the mobile terminal equipped with this speaker module. In addition, the speaker module has a second installation cavity that is connected to the outside world through an air flow channel. An additional sound unit and / or receiver can be installed in the second installation cavity, which helps to improve the integration of the speaker module and meet the development trend of thin and light integration of mobile terminal devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 This is a cross-sectional view of the speaker module according to the first embodiment of the present invention;

[0027] Figure 2 Schematic diagram of the structure of the speaker unit in the speaker module of the first embodiment of the present invention.

[0028] Description of Figure Numbers:

[0029] 10. Speaker unit; 1. External magnetic circuit assembly; 11. Annular outer magnet; 12. Upper annular outer washer; 13. Lower annular outer washer; 2. Vibration assembly; 21. Upper diaphragm assembly; 22. Upper voice coil; 23. Center mount; 24. Lower voice coil; 25. Lower diaphragm assembly; 3. Upper cover; 31. Upper sound outlet; 4. Upper annular inner magnet assembly; 41. Upper annular inner magnet; 411. Upper channel; 42. Upper annular inner washer; 5. Lower cover; 51. Lower sound outlet; 6. Lower annular inner magnet assembly; 61. Lower annular inner magnet; 611. Lower channel; 62. Lower annular inner washer;

[0030] 20. Electroacoustic devices;

[0031] 30. Module housing; 301. First installation cavity; 302. Second installation cavity; 303. Sub-channel; 304. Converging channel; 305. Bend portion; 306. Air flow channel. DETAILED DESCRIPTION

[0032] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0036] In addition, if the word "and / or" appears throughout the text, it means that three parallel solutions are included. For example, "and / or" includes solutions, or solutions, or solutions that meet all of the requirements simultaneously. In addition, the technical solutions of various embodiments may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. If the combination of technical solutions is mutually contradictory or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0037] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0038] Example 1

[0039] Please refer to Figure 1 and Figure 2 , Embodiment 1 of the present utility model is: a speaker module, comprising a module housing 30, an electroacoustic device 20 and a speaker unit 10, wherein a first mounting cavity 301 and a second mounting cavity 302 are provided in the module housing 30, the speaker unit 10 is arranged in the first mounting cavity 301, and the electroacoustic device 20 is arranged in the second mounting cavity 302, and a sound channel connecting the outside with the first mounting cavity 301 and an air flow channel 306 connecting the outside with the second mounting cavity 302 is provided on the module housing 30, the sound channel is Y-shaped as a whole, and the sound channel includes two sub-channels 303 and a converging channel 304, one end of the converging channel 304 connects the two sub-channels 303, and the other end of the converging channel 304 is connected to the outer surface of the module housing 30, and the second mounting cavity 302 is located above the sound channel;

[0040] The electroacoustic device 20 is a sound unit and / or a receiver. In this embodiment, the electroacoustic device 20 is a sound unit. Specifically, the speaker unit 10 is a bass sound device, and the sound unit is a treble sound device. That is, the high and low frequencies in the speaker module are respectively emitted by different electroacoustic converters, which helps to improve the listening experience of the speaker module and enhance the user's listening experience.

[0041] The speaker unit 10 includes an external magnetic circuit component 1, a vibration component 2, an upper cover 3, an upper annular internal magnetic component 4, a lower cover 5 and a lower annular internal magnetic component 6. The external magnetic circuit component 1 includes an annular external magnetic steel 11, an upper annular external washer 12 provided on the top surface of the annular external magnetic steel 11 and a lower annular external washer 13 provided on the bottom surface of the annular external magnetic steel 11; the vibration component 2 includes an upper diaphragm component 21, an upper voice coil 22, a middle sticker 23, a lower voice coil 24 and a lower diaphragm component 25. The middle sticker 23 is located on the inner side of the external magnetic circuit component 1, the top surface of the middle sticker 23 is connected to the upper voice coil 22, the bottom surface of the middle sticker 23 is connected to the lower voice coil 24, the upper diaphragm component 21 connects the top of the external magnetic circuit component 1 and the upper voice coil 22, the lower diaphragm component 25 connects the bottom of the external magnetic circuit component 1 and the lower voice coil 24; the upper cover 3 connects the external magnetic circuit component 1 At the top, an upper sound outlet 31 is provided on one side of the upper cover 3, and the upper sound outlet 31 is connected to one of the sub-channels 303; the upper annular inner magnetic component 4 includes an upper annular inner magnetic steel 41 connected to the upper cover 3, and an upper magnetic gap for the upper voice coil 22 to move is formed between the upper annular inner magnetic component 4 and the outer magnetic circuit component 1, and an upper channel 411 connected to the upper sound outlet 31 is provided on the upper annular inner magnetic steel 41; the lower cover 5 is connected to the bottom of the outer magnetic circuit component 1, and a lower sound outlet 51 is provided on one side of the lower cover 5, and the lower sound outlet 51 is connected to another sub-channel 303; the lower annular inner magnetic component 6 includes a lower annular inner magnetic steel 61 connected to the lower cover 5, and a lower magnetic gap for the lower voice coil 24 to move is formed between the lower annular inner magnetic component 6 and the outer magnetic circuit component 1, and a lower channel 611 connected to the lower sound outlet 51 is provided on the lower annular inner magnetic steel 61.

[0042] Optionally, the sound channel and the air channel 306 are connected to the same side of the module housing 30. In a specific product, the connection point between the sound channel and the outer surface of the module housing 30 and the connection point between the air channel 306 and the outer surface of the module housing 30 may also be located on different sides of the module housing 30. The specific design can be based on the structure of the mobile terminal product.

[0043] In order to reduce the overall volume of the speaker module and optimize the internal layout of the speaker module, in this embodiment, the sub-channel 303 connected to the upper sound outlet 31 has a bending portion 305, and the bending portion 305 of the sub-channel 303 is used to avoid the second installation cavity 302. Optionally, the cross-section of the sub-channel 303 is obtuse.

[0044] In the speaker unit 10, the upper annular inner magnetic component 4 also includes an upper annular inner washer 42, and the bottom surface of the upper annular inner magnetic steel 41 is connected to the upper annular inner washer 42; the lower annular inner magnetic component 6 also includes a lower annular inner washer 62, and the top surface of the lower annular inner magnetic steel 61 is connected to the lower annular inner washer 62.

[0045] In order to enable the upper cover 3 and the lower cover 5 to play a magnetic conductive role, the upper cover 3 and the lower cover 5 in the speaker unit 10 are respectively made of magnetic conductive metal materials, such as iron, iron alloy, etc.

[0046] The upper channel 411 in the speaker unit 10 is arranged close to and corresponding to the upper sound outlet 31 , so that the upper diaphragm assembly 21 can produce sound more smoothly. Similarly, the lower channel 611 is arranged close to and corresponding to the lower sound outlet 51 .

[0047] To facilitate the processing of the upper annular inner magnetic steel 41, the upper channel 411 connects the interface between the upper annular inner magnetic steel 41 and the upper cover 3. Similarly, to facilitate the processing of the lower annular inner magnetic steel 61, the lower channel 611 connects the interface between the lower annular inner magnetic steel 61 and the lower cover 5.

[0048] As a preferred embodiment, the speaker unit 10 has a vertically symmetrical structure.

[0049] To maintain the thinness and lightness of the speaker module, in this embodiment, the module housing 30 has an upper window and a lower window positioned opposite each other. Part of the upper cover 3 is located within the upper window, and part of the lower cover 5 is located within the lower window. Specifically, the top edge of the upper cover 3 is provided with an upper pressure edge, and the upper window has an upper step that mates with the upper pressure plate. Similarly, the bottom edge of the lower cover 5 is provided with a lower pressure edge, and the lower window has a lower step that mates with the lower pressure plate.

[0050] Preferably, the top surface of the upper cover 3 is coplanar with the top surface of the module housing 30 , and the bottom surface of the lower cover 5 is coplanar with the bottom surface of the module housing 30 .

[0051] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A speaker module, characterized in that: include A module housing, wherein a first mounting cavity and a second mounting cavity are provided within the module housing. The module housing is provided with a sound channel connecting the outside world with the first mounting cavity and an air flow channel connecting the outside world with the second mounting cavity. The sound channel is Y-shaped as a whole and includes two sub-channels and a converging channel. One end of the converging channel connects the two sub-channels, and the other end of the converging channel connects to the outer surface of the module housing. The second mounting cavity is located above the sound channel. an electroacoustic device, the electroacoustic device being disposed in the second mounting cavity, the electroacoustic device being a sounding unit and / or a receiver; A speaker unit, the speaker unit is arranged in the first installation cavity, and the speaker unit includes An outer magnetic circuit assembly, the outer magnetic circuit assembly comprising an annular outer magnetic steel, an upper annular outer washer provided on the top surface of the annular outer magnetic steel, and a lower annular outer washer provided on the bottom surface of the annular outer magnetic steel; A vibration assembly, comprising an upper diaphragm assembly, an upper voice coil, a middle sticker, a lower voice coil, and a lower diaphragm assembly, wherein the middle sticker is located inside the outer magnetic circuit assembly, the top surface of the middle sticker is connected to the upper voice coil, the bottom surface of the middle sticker is connected to the lower voice coil, the upper diaphragm assembly is connected to the top of the outer magnetic circuit assembly and the upper voice coil, and the lower diaphragm assembly is connected to the bottom of the outer magnetic circuit assembly and the lower voice coil; An upper cover connected to the top of the outer magnetic circuit assembly, with an upper sound outlet provided on one side of the upper cover, the upper sound outlet being connected to one of the sub-channels; an upper annular inner magnetic assembly, the upper annular inner magnetic assembly comprising an upper annular inner magnetic steel connected to the upper cover, an upper magnetic gap formed between the upper annular inner magnetic assembly and the outer magnetic circuit assembly for movement of the upper voice coil, and an upper channel provided on the upper annular inner magnetic steel for communication with the upper sound outlet; a lower cover, the lower cover being connected to the bottom of the outer magnetic circuit assembly, and a lower sound outlet being provided on one side of the lower cover, the lower sound outlet being connected to another sub-channel; The lower annular inner magnetic assembly includes a lower annular inner magnetic steel connected to the lower cover, a lower magnetic gap is formed between the lower annular inner magnetic assembly and the outer magnetic circuit assembly for the movement of the lower voice coil, and a lower channel connected to the lower sound outlet is provided on the lower annular inner magnetic steel.

2. The speaker module according to claim 1, wherein: The sound channel and the air flow channel are connected to the same side of the module housing.

3. The speaker module according to claim 1, wherein: The sub-channel connected to the upper sound outlet has a bending portion, and the bending portion of the sub-channel is used to avoid the second installation cavity.

4. The speaker module according to claim 1, wherein: The upper annular inner magnetic assembly in the speaker unit further includes an upper annular inner washer, and the bottom surface of the upper annular inner magnetic steel is connected to the upper annular inner washer.

5. The speaker module according to claim 1, wherein: The lower annular inner magnetic assembly in the speaker unit further includes a lower annular inner washer, and the top surface of the lower annular inner magnetic steel is connected to the lower annular inner washer.

6. The speaker module according to claim 1, wherein: The upper cover and the lower cover of the speaker unit are respectively made of magnetic conductive metal materials.

7. The speaker module according to claim 1, wherein: The upper channel in the speaker unit is arranged close to and corresponding to the upper sound outlet.

8. The speaker module according to claim 1, wherein: The upper channel in the speaker unit is connected to the interface between the upper annular inner magnetic steel and the upper cover.

9. The speaker module according to claim 1, wherein: The speaker unit has a vertically symmetrical structure.

10. The speaker module according to claim 1, wherein: The module housing has an upper window and a lower window that are arranged opposite to each other. A partial area of ​​the upper cover is located in the upper window, and a partial area of ​​the lower cover is located in the lower window.

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