Abstract: The present invention provides a blocking piece covering the sound hole of a loudspeaker and an assembling method thereof, and a loudspeaker module. The blocking piece covering the sound hole of the loudspeaker module is arranged at a position where the sound hole is located on the case of the loudspeaker module and covers the sound hole. The blocking piece is made of a nonmetallic flexible net. The nonmetallic net-shaped blocking piece and the case are formed integrally by injection moulding. The loudspeaker module and the blocking piece covering the sound hole thereof in the present invention have advantages of good acoustic performance, high reliability, high space utilization rate and high production efficiency. The assembling method for the blocking piece covering the sound hole of the loudspeaker module further makes the assembling of the blocking piece convenient for operation, and improves the assembling efficiency and assembling quality.

Abstract: The present invention provides a speaker module comprising a module housing, and a speaker unit accommodated in the module housing, and the speaker unit separates a cavity formed by the module housing into a front acoustic cavity and a rear acoustic cavity; sound absorbing particles are filled into the rear acoustic cavity, and the sidewall of the module housing is provided with an isolation mesh cloth for isolating the sound absorbing particles and the speaker unit; the isolating mesh cloth is fixed to a first fixing frame by injection molding, and the first fixing frame is fixed in the corresponding module housing by injection molding. According to the present invention, it can prevent the problems such as leakage, deviation or breakage of the mesh during the process of fixing the isolating mesh cloth.

Abstract: The present invention provides a sound generation device and a preparation method of a metal plastic part. The sound generation device comprises a metal plastic part. The metal plastic part comprises a plastic part and a metal insert that is combined with the plastic part. An oxidation film that is obtained through metal nanocrystallization and a nanopore that is formed in a surface of the oxidation film and has a pore diameter of 20-1,000 nm are arranged on a surface of the metal insert. The nanopore is filled with a resin composition from which the plastic part is made. As the nanopore is filled with the resin composition from which the plastic part is made, the metal insert and the plastic part are in close fit with each other, which greatly enhances the gluing capability of the metal insert and prevents the metal insert and the plastic part which are formed through injection molding from being separated.

Abstract: The present invention provides a speaker module comprising a module housing, and a speaker unit accommodated in the module housing, and the speaker unit separates a cavity formed by the module housing into a front acoustic cavity and a rear acoustic cavity; sound absorbing particles are filled into the rear acoustic cavity, and the sidewall of the module housing is provided with an isolation mesh cloth for isolating the sound absorbing particles and the speaker unit; the isolating mesh cloth is fixed to a first fixing frame by injection molding, and the first fixing frame is fixed in the corresponding module housing by injection molding. According to the present invention, it can prevent the problems such as leakage, deviation or breakage of the mesh during the process of fixing the isolating mesh cloth.

Abstract: The present invention discloses a speaker and a rear cover therefor. The rear cover comprises a rear cover body whose one side is provided with a first connection portion; and a connection assembly provided with a first surface and a second surface which are connected with each other. A contact is formed by extending and bending the first surface, and is provided with a conductor. A connection hole is further formed in the first surface. A limiting device and a second connection portion are arranged on the second surface; and the cross section of the limiting device is C-shaped. The connection assembly is connected to the first connection portion of the rear cover body through the second connection portion. The contact is configured to conduct the speaker with the outside. The connection hole is configured to fix the speaker or conduct the speaker with other components.

Abstract: The present invention provides a sound generation device and a preparation method of a metal plastic part. The sound generation device comprises a metal plastic part. The metal plastic part comprises a plastic part and a metal insert that is combined with the plastic part. An oxidation film that is obtained through metal nanocrystallization and a nanopore that is formed in a surface of the oxidation film and has a pore diameter of 20-1,000 nm are arranged on a surface of the metal insert. The nanopore is filled with a resin composition from which the plastic part is made. As the nanopore is filled with the resin composition from which the plastic part is made, the metal insert and the plastic part are in close fit with each other, which greatly enhances the gluing capability of the metal insert and prevents the metal insert and the plastic part which are formed through injection molding from being separated.

Abstract: An air valve and a speaker are provided. The air valve comprises a valve body, an elastic valve plate, an air inlet penetrating through an inner surface and an outer surface of the valve body, and an air outlet penetrating through an inner surface and an outer surface of the valve plate. The valve plate is connected with the valve body in a sealing manner to form an annular sealing area encircling the air outlet and the air inlet, and the inner surface of the valve body covers the air outlet, and/or the inner surface of the valve plate covers the air inlet. The speaker is provided with or incorporates the air valve. The air valve can be opened or closed via elastic deformation of the valve plate of the air valve.

Abstract: A speaker module comprising: a housing, the housing comprising an upper housing and a lower housing, the housing defining an inner cavity structure, at least one of the upper housing and the lower housing being provided with a group of micropores arranged in an array; and a speaker unit, comprising a magnetic circuit assembly and a vibrating assembly, the vibrating assembly dividing the inner cavity structure into a front cavity and a rear cavity, the magnetic circuit assembly being provided with a magnetic gap having a predetermined pattern, the magnetic circuit assembly being disposed close to the lower housing. A technical problem to be solved by the present invention is the heat dissipation of the speaker module.

Abstract: Disclosed is a loudspeaker module, comprising a housing and a loudspeaker unit accommodated in the housing. A sound hole is provided on the housing, and a protective net is provided at a position of the housing corresponding to the sound hole, wherein the protective net has a non-planar structure. In the loudspeaker module of the present invention, the protective net has a non-planar structure, and cancels, via deformation thereof, stress of the housing such that the stress does not act on the protective net to cause tearing or deformation of the net holes, thus improving reliability of the protective net, preventing external foreign matter from entering the interior of the loudspeaker module, and improving reliability of the loudspeaker module.

Abstract: The present invention discloses a speaker and a rear cover therefor. The rear cover comprises a rear cover body whose one side is provided with a first connection portion; and a connection assembly provided with a first surface and a second surface which are connected with each other. A contact is formed by extending and bending the first surface, and is provided with a conductor. A connection hole is further formed in the first surface. A limiting device and a second connection portion are arranged on the second surface; and the cross section of the limiting device is C-shaped. The connection assembly is connected to the first connection portion of the rear cover body through the second connection portion. The contact is configured to conduct the speaker with the outside. The connection hole is configured to fix the speaker or conduct the speaker with other components.

Abstract: A speaker module comprising: a housing, the housing comprising an upper housing and a lower housing, the housing defining an inner cavity structure, at least one of the upper housing and the lower housing being provided with a group of micropores arranged in an array; and a speaker unit, comprising a magnetic circuit assembly and a vibrating assembly, the vibrating assembly dividing the inner cavity structure into a front cavity and a rear cavity, the magnetic circuit assembly being provided with a magnetic gap having a predetermined pattern, the magnetic circuit assembly being disposed close to the lower housing. A technical problem to be solved by the present invention is the heat dissipation of the speaker module.

Abstract: Disclosed is a micro speaker, comprising a vibration system, a magnetic circuit system and a support system; the vibration system comprises a vibrating diaphragm; a dodging groove is provided on a dome portion of the vibrating diaphragm opposite to a groove structure of an upper housing; the depth of the dodging groove is not less than that of the groove structure; an orthographic projection area of the dodging groove covers that of the groove structure; a dodging structure is provided on a washer of the magnetic circuit system opposite to the dodging groove; the depth of the dodging structure is not less than that of the dodging groove; and the orthographic projection area of the dodging structure covers that of the dodging groove. This structure ensures the normal operation of a product and acoustic performance of a micro speaker while preventing collision of components.

Abstract: Disclosed is a loudspeaker module, comprising a housing and a loudspeaker unit accommodated in the housing. A sound hole is provided on the housing, and a protective net is provided at a position of the housing corresponding to the sound hole, wherein the protective net has a non-planar structure. In the loudspeaker module of the present invention, the protective net has a non-planar structure, and cancels, via deformation thereof, stress of the housing such that the stress does not act on the protective net to cause tearing or deformation of the net holes, thus improving reliability of the protective net, preventing external foreign matter from entering the interior of the loudspeaker module, and improving reliability of the loudspeaker module.

Abstract: The present invention provides a blocking piece covering the sound hole of a loudspeaker and an assembling method thereof, and a loudspeaker module. The blocking piece covering the sound hole of the loudspeaker module is arranged at a position where the sound hole is located on the case of the loudspeaker module and covers the sound hole. The blocking piece is made of a nonmetallic flexible net. The nonmetallic net-shaped blocking piece and the case are formed integrally by injection moulding. The loudspeaker module and the blocking piece covering the sound hole thereof in the present invention have advantages of good acoustic performance, high reliability, high space utilization rate and high production efficiency. The assembling method for the blocking piece covering the sound hole of the loudspeaker module further makes the assembling of the blocking piece convenient for operation, and improves the assembling efficiency and assembling quality.

Abstract: Described is an air valve and a speaker containing the air valve described. The air valve comprises a valve body, an elastic valve plate, an air inlet penetrating through an inner surface and an outer surface of the valve body, and an air outlet penetrating through an inner surface and an outer surface of the valve plate. The valve plate is connected with the valve body in a sealing manner to form an annular sealing area encircling the air outlet and the air inlet. The inner surface of the valve body covers the air outlet, and/or the inner surface of the valve plate covers the air inlet. The air valve can be opened or closed via elastic deformation of the valve plate of the air valve. Therefore, the air valve can be perfectly matched with smaller sized products, reducing the difficulty in adjusting the micro speaker in a limited space.

Abstract: A blocking piece covering the sound hole of a loudspeaker module may be arranged at a position where the sound hole is located on the case of the loudspeaker module and covers the sound hole. The blocking piece may be made of a nonmetallic flexible net. The nonmetallic net-shaped blocking piece and the case may be formed integrally by injection molding. The loudspeaker module and the blocking piece covering the sound hole thereof in the present invention may provide good acoustic performance, high reliability, high space utilization rate and/or high production efficiency. The assembling method for the blocking piece covering the sound hole of the loudspeaker module further makes the assembling of the blocking piece convenient for operation, and improves the assembling efficiency and assembling quality.

Abstract: Disclosed is a micro speaker, comprising a vibration system, a magnetic circuit system and a support system; the vibration system comprises a vibrating diaphragm; a dodging groove is provided on a dome portion of the vibrating diaphragm opposite to a groove structure of an upper housing; the depth of the dodging groove is not less than that of the groove structure; an orthographic projection area of the dodging groove covers that of the groove structure; a dodging structure is provided on a washer of the magnetic circuit system opposite to the dodging groove; the depth of the dodging structure is not less than that of the dodging groove; and the orthographic projection area of the dodging structure covers that of the dodging groove. This structure ensures the normal operation of a product and acoustic performance of a micro speaker while preventing collision of components.

Abstract: An ultrathin speaker module, comprising: a casing provided with a sound hole thereon; a speaker unit comprising a diaphragm; a first separating wall provided with a diaphragm accommodating hole, wherein the diaphragm is fixed in the diaphragm accommodating hole, and the first separating wall and the diaphragm separate the internal space of the casing into an upper space and a lower space; and a second separating wall, which separates the upper space into one first upper cavity and at least one second upper cavity, wherein the first upper cavity comprises the diaphragm and forms a front acoustic cavity, and the front acoustic cavity is in communication with the outside through the sound hole on the casing; and the at least one second upper cavity is in communication with the lower space through a through hole on the first separating wall, and forms a rear acoustic cavity.

Abstract: A blocking piece covering the sound hole of a loudspeaker module may be arranged at a position where the sound hole is located on the case of the loudspeaker module and covers the sound hole. The blocking piece may be made of a nonmetallic flexible net. The nonmetallic net-shaped blocking piece and the case may be formed integrally by injection moulding. The loudspeaker module and the blocking piece covering the sound hole thereof in the present invention may provide good acoustic performance, high reliability, high space utilization rate and/or high production efficiency. The assembling method for the blocking piece covering the sound hole of the loudspeaker module further makes the assembling of the blocking piece convenient for operation, and improves the assembling efficiency and assembling quality.

Abstract: The present invention provides a speaker module comprising a peripheral frame and speaker units housed in the peripheral frame, and the peripheral frame is provided with sound holes in communication with the outside, a front acoustic cavity in communication with the sound holes is defined between one side of the speaker units and the peripheral frame, and a rear acoustic cavity is defined between the peripheral frame and another side of the speaker units away from the front acoustic cavity; in which the speaker units are provided in plurality, and the rear acoustic cavity is divided into the same number of rear sub-cavities as that of the speaker units, and each of the speaker units corresponds to one of the rear sub-cavities and is in communication with its corresponding rear sub-cavity. The above structure makes it easier to adjust the acoustic performance and improves the stereo effect of the product.