37results about How to "Improved low frequency acoustic performance" patented technology

The invention provides a speaker box which comprises a shell made of a metal material, a sound production monomer and an annular bracket made of a plastic material, and the shell comprises a front cover and a rear cover, and the bracket comprises a bracket main body part and a bracket sound guide part extending from the bracket main body part; the sound production monomer is supported on the support and spaced from the front cover, the bracket surrounds the periphery of the sound production monomer and is hermetically fixed with the sound production monomer, the bracekt sound guide part penetrates through the shell and is at least partially exposed out of the shell, and the bracekt sound guide part is provided with a sound guide channel; the sound production monomer, the bracekt and the front cover jointly form a front vocal cavity, the sound production monomer, the bracekt, the front cover and the rear cover jointly form a rear vocal cavity, and the front vocal cavity is communicatedwith the outside through the sound guide channel. Compared with the prior art, the speaker box is large in cavity size and good in acoustic performance.

The invention provides a speaker box which comprises a shell, a sound production unit and a bracket made of a plastic material, and the shell is made of a metal material and comprises an upper cover and a lower cover; the upper cover comprises an upper cover plate, an upper cover side wall, a sound outlet and a side wall extension part surrounding the sound outlet; a support comprises an annular support fixing part and a support sound guide part which are fixed on the upper cover plate, the sound production unit is supported on the support fixing part and spaced from the upper cover, the support fixing part surrounds the periphery of the sound production unit and is hermetically fixed with the sound production unit, and the sound production unit, the support and the upper cover jointly define a front sound cavity. The sound production unit, the support, the upper cover and the lower cover jointly form a rear sound cavity. The support sound guide part is provided with a sound guide channel, and the sound guide channel communicates the front sound cavity with the outside through the sound outlet; the side wall extension part is arranged around the sound guide channel and is embeddedand fixed in the support sound guide part; compared with the prior art, the speaker box is large in cavity size and good in acoustic performance.

The invention provides a speaker box which comprises a shell and a sound production monomer fixedly accommodated in the shell, and the sound production monomer comprises a vibrating diaphragm for vibration sound production, and the shell is made of a metal material; the shell comprises a front cover and a rear cover which respectively cover two opposite sides of the sound production monomer alongthe vibration direction of the vibrating diaphragm, an annular first bracket fixed in the shell, and a sound outlet penetrating through the shell along the direction vertical to the vibration direction of the vibrating diaphragm, and the first bracket is fixed on the front cover; the side, provided with the vibrating diaphragm, of the sound production unit is supported and fixed to the first bracket and spaced from the front cover, a front sound cavity is defined by the sound production unit, the first bracket and the front cover jointly, the front sound cavity is communicated with the outsidethrough the sound outlet to form a side sound production structure, and a rear sound cavity is defined by the sound production unit, the bracket, the front cover and the rear cover jointly. Comparedwith the prior art, the speaker box is large in cavity size and good in acoustic performance.

The invention provides a sound absorption material. The sound absorption material comprises a heteroatom zeolite molecular sieve; the heteroatom zeolite molecular sieve comprises a framework and extra-framework cations; the framework comprises SiO2 and a metal oxide MxOy containing metal M, wherein the molar ratio of Si / M in the framework is 250-500, and the M comprises Fe; and the extra-frameworkcations are at least one selected from a group comprising cuprous ions, monovalent silver ions, monovalent gold ions, alkali metal ions or alkaline earth metal ions. The invention further provides aloudspeaker box applying the sound absorption material. Compared with the related art, the loudspeaker box has good acoustic low-frequency performance.

The invention provides a sound-absorbing material. The sound-absorbing material comprises zeolite molecular sieves and is characterized in that each zeolite molecular sieve comprises a plurality of particles, each particle comprises a plurality of grains, each grain comprises a porous framework and a positive ion outside the framework, and each framework comprises SiO2 and oxide MxOy containing element M; each zeolite molecular sieve further comprises mesopores which include intergranular mesopores among the grains and transgranular mesopores penetrating the grains; the atom mole ratio of Si / Min each framework is 100-2000. Compared with the prior art, the sound-absorbing material applied to the loudspeaker box can evidently improve the low frequency performance of a loudspeaker.

The embodiment of the invention relates to the technical field of sound absorbing materials and discloses a sound absorbing material. In the invention, the sound absorbing material comprises an MFI structure molecular sieve; the MFI structure molecular sieve comprises a framework and framework external positive ions; the framework comprises SiO2 and metal oxide MxOy; the Si / M atomic ratio in the framework is at least 100, wherein M comprises gallium; the framework external positive ions are at least one of hydrogen ions, alkaline metal ions or alkaline-earth metals. The invention also providesa preparation method of the sound absorbing material and a loudspeaker applying the sound absorbing material. According to the sound absorbing material, the preparation method and the loudspeaker applying the sound absorbing material, the performance of the loudspeaker can be improved, the molecular scene invalidation is reduced, and the performance stability of the loudspeaker is improved.

A low-frequency improvement material is disclosed and includes a plurality of zeolite granules including a plurality of zeolite particles including a plurality of zeolite crystal particles. The zeolite crystal particles include a skeleton and positive ions outside the skeleton. The skeleton includes SiO2 and an oxide MxOy containing an element M. The average crystal particle size of the zeolite crystal particles is 5-75 nm. The invention further provides a speaker system applying the low-frequency improvement material. The material and the system can achieve further improved performance of thesystem, reduction in disabled molecular sieve, and improvement in performance stability of the system.

The embodiment of the invention relates to the technical field of damping materials, and discloses a damping material. The damping material comprises a molecular sieve with an MFI structure, the molecular sieve with the MFI structure comprises a framework and cations outside the framework, the framework comprises SiO2 and metal oxide MxOy which contains a metallic element M, the damping material is characterized in that in the framework, the Si / M atomic mole ratio ranges from 220 to 600, wherein the metallic element M contains aluminum, the cations outside the framework are one or more kind ofhydrogen ions, alkali metal ions or alkaline earth metal. The invention further provides a preparation method of the damping material as well as a loudspeaker enclosure to which the damping materialis applied. According to the damping material and the preparation method thereof as well as the loudspeaker enclosure to which the damping material is applied, the loudspeaker enclosure performance can be further improved, the molecular sieve failure can be reduced, and the performance stability of the loudspeaker enclosure can be improved.

The present disclosure provides a sound absorbing material. The sound absorbing material comprising MFI-structural-type molecular sieves, the MFI-structural-type molecular sieves comprises frameworks and extra-framework cations, the framework comprising SiO2 and a metal oxide MxOy containing a metal element M, wherein a molar ratio of Si / M is between 220 and 600 in the framework, the metal element M comprises aluminum, and the extra-framework cations are at least one of hydrogen ions, alkali metal ions and alkaline earth metals. The present also provides a method for preparing a sound absorbing material and a speaker box using the sound absorbing material.

The present disclosure provides a sound absorbing material. The sound absorbing material comprising a heteroatom zeolite molecular sieve comprising a framework and an extra-framework cation, the framework comprising SiO2 and a metal oxide MxOy comprising a metal element M, wherein the framework has a molar ratio of Si / M between 250 to 500, wherein the M includes Fe, and that the extra-framework cation is at least one of a monovalent copper ion, a monovalent silver ion, a monovalent gold ion, an alkali metal ion or an alkaline earth metal ion. The sound absorbing material provided by the present disclosure, sound absorbing material to have better oxygen adsorption capacity, good waster repellency and stability. When such a sound absorbing material is applied to a speaker box, the speaker box will have better low frequency acoustic performance and better reliability.

The invention provides a loudspeaker box and an assembly process thereof. The loudspeaker box comprises a sound production single body, a front cover made of a metal material, an integrally injection-molded bracket fixedly supported on the front cover, and a rear cover made of a metal material, the support comprises a support body for supporting the sound production single body and an external connection body which is connected with the support body and defines an annular through hole. The external connection body is provided with a sound guide channel penetrating through the external connection body. The rear cover covers the front cover and the outer connecting body and defines a shell with an accommodating space together with the front cover and the outer connecting body; the sound production monomer and the support body are accommodated and fixed in the accommodating space of the shell; the front cover, the support body and the sound production single body jointly enclose a front sound cavity, and the sound guide channel communicates the front sound cavity with the outside; and the sound production single body, the outer connection body, the support body and the rear cover jointly form a rear sound cavity. According to the loudspeaker box, the volume of the cavity in the shell can be increased, the volume of the rear sound cavity defined by the sound production single bodyand the shell is increased, and the acoustic performance, especially the low-frequency acoustic performance, of the loudspeaker box is improved.

The invention provides a loudspeaker box, and the loudspeaker box comprises a shell with an accommodating space and made of a metal material, a sound production monomer, a bracket made of a metal material and a sound guide piece; the sound production monomer, the bracket and the sound guide piece are respectively accommodated in the accommodating space, the sound guide piece is fixedly connected to the bracket, and the sound production monomer comprises a vibrating diaphragm; the shell is provided with a sound outlet; the support is provided with a receding opening opposite to the sound outlet, the sound guide piece is located between the receding opening and the sound outlet, the two opposite sides of the sound guide piece are fixedly welded to the shell and the support respectively, andthe sound guide piece is arranged around the sound outlet and defines a sound guide channel together with the shell. The side, provided with the vibrating diaphragm, of the sound production unit is supported and fixed to the support and spaced from the shell, a front sound cavity is defined by the sound production unit, the support and the shell jointly, and the front sound cavity communicates with the sound outlet through the sound guide channel to form a side sound production structure. The bracket, the sound guide piece, the sound production single body and the shell jointly enclose a rearsound cavity. Compared with the prior art, the loudspeaker box is excellent in low-frequency acoustic performance.

The invention provides a loudspeaker box, and the box comprises a shell with an accommodating space and a sound production monomer fixedly accommodated in the accommodating space; the sound productionmonomer and the shell enclose a closed rear sound cavity, and the sound production monomer comprises a vibrating diaphragm for vibration sound production; the shell is made of a metal material, the loudspeaker box further comprises an auxiliary cavity shell which abuts against and is fixed to the outer side of the shell, the auxiliary cavity shell and the shell jointly define an auxiliary sound cavity, the shell is provided with a leakage opening penetrating through the shell, and the rear sound cavity is communicated with the auxiliary sound cavity through the leakage opening. Compared withthe prior art, the loudspeaker box is convenient to assemble, high in assembly reliability and good in sealing performance.

The present disclosure provides a sound absorbing material. The sound absorbing material comprising a heteroatom zeolite molecular sieve comprising a framework and an extra-framework cation, the framework comprising SiO2 and a metal oxide MxOy comprising a metal element M, wherein the framework has a molar ratio of Si / M between 250 to 500, wherein the M includes Fe, and that the extra-framework cation is at least one of a monovalent copper ion, a monovalent silver ion, a monovalent gold ion, an alkali metal ion or an alkaline earth metal ion. The sound absorbing material provided by the present disclosure, sound absorbing material to have better oxygen adsorption capacity, good waster repellency and stability. When such a sound absorbing material is applied to a speaker box, the speaker box will have better low frequency acoustic performance and better reliability.

The invention provides a sound absorbing material. The material comprises an MEL structure molecular sieve, the MEL structure molecular sieve comprises a skeleton and a skeleton outer cation, the skeleton comprises silicon oxide and an oxide MxOy of an element M containing a non-silicon element, the skeleton is characterized in that the mass ratio of Si / M in the skeleton is at least 80, the skeleton outer cation comprises at least one of a hydrogen ion, an alkali metal ion, an alkaline earth metal ion and a transition metal ion, and the content of the skeleton outer cation is between 0.05 wt.% and 1.5wt. %. The invention also provides a speaker using the sound absorbing material. Compared with the prior art, the sound absorbing material of the molecular sieve of the MEL structure is addedto the speaker, which can significantly improve the low frequency performance of the speaker, and the sound absorbing material has strong resistance to performance degradation in practical applications.

The invention provides a loudspeaker box. The loudspeaker box comprises a shell, a sound production single body fixedly accommodated in the shell, and an annular bracket which is positioned in the shell and is made of plastic, wherein the sound production single body and the shell jointly form a rear sound cavity, the sound production single body comprises a vibrating diaphragm, and the shell comprises a front cover made of a metal material, a rear cover which covers and is fixed on the front cover and is made of a metal material, and a sound outlet which penetrates through the front cover; the bracket surrounds the sound outlet and wraps the periphery of the sound outlet to be fixedly connected with the front cover, the side, provided with the vibrating diaphragm, of the sound productionsingle body faces the sound outlet, the bracket surrounds the periphery of the sound production single body and is fixed to the sound production single body in a sealed mode, and the sound productionsingle body, the bracket, the front cover and the rear cover jointly define a closed rear sound cavity. Compared with the prior art, the loudspeaker box is large in cavity size and good in acoustic performance.

The present disclosure discloses a speaker assembly, including: a housing with an accommodation space formed by a top wall, a bottom wall, and a sidewall; a speaker received in the accommodation space. The speaker includes a first unit having a first diaphragm and a second unit having a second diaphragm; a first back cavity formed by the first unit and the bottom wall; a second back cavity formed by the second unit and the top wall. An auxiliary cavity is formed by the second diaphragm and the bottom wall; a partition wall connecting between the top wall and the bottom wall for separating the auxiliary cavity from the first back cavity. The partition wall has a through hole corresponding to the second diaphragm. The second unit has a side adjacent to the second diaphragm fixed to the partition wall.

The embodiment of the invention relates to the technical field of damping materials, and discloses a damping material. The damping material comprises a molecular sieve with an MFI structure, the molecular sieve with the MFI structure comprises a framework, the framework comprises SiO2 and Ga2O3, and in the framework, the Si / Ga atomic mole ratio ranges from 100 to 600. The invention further provides a preparation method of the damping material and a loudspeaker enclosure to which the damping material is applied. According to the damping material and the preparation method thereof as well as theloudspeaker enclosure to which the damping material is applied, the loudspeaker enclosure performance can be further improved, the molecular sieve failure can be reduced, and the performance stability of the loudspeaker enclosure can be improved.

The invention provides a loudspeaker box and its assembly process. The loudspeaker box includes a sounding unit, a front cover made of metal material, an integrally injection-molded bracket fixed and supported on the front cover, and a back cover made of metal material; The bracket includes a support body supporting the sounding unit and an outer connecting body connected to the supporting body and forming a ring-shaped through hole. The outer connecting body is provided with a sound guide channel passing through it; the back cover is closed on the front cover and the outer connecting body. The body and the front cover and the outer connecting body form a housing with a storage space, and the sounding unit and the supporting body are accommodated and fixed in the housing space of the housing; the front cover, the supporting body and the sounding unit together form a front acoustic cavity, The sound guide channel connects the front acoustic cavity with the outside world; the sound emitting unit, the outer connecting body, the support body and the rear cover together form the rear acoustic cavity. The loudspeaker box of the present invention can increase the volume of the cavity in the housing, increase the volume of the rear acoustic cavity surrounded by the sound emitting unit and the housing, and further improve the acoustic performance of the loudspeaker box, especially the low-frequency acoustic performance.

The invention provides a loudspeaker box, which comprises a shell with an accommodating space and a sound production monomer partially accommodated and fixed in the accommodating space, and is characterized in that the shell comprises an upper cover and a lower cover which covers the upper cover and defines the accommodating space together with the upper cover, and the sound production monomer comprises a vibrating diaphragm for vibration sound production; the upper cover comprises an upper cover extension wall fixedly connected with the lower cover and a main body part bent and extended fromthe upper cover extension wall to the sound production monomer, the main body part is provided with a sound production port exposed out of the vibrating diaphragm in a penetrating manner, and the sound production monomer is provided with a positioning boss; the shell and the positioning boss are both made of metal materials, and the sound production single body is welded and fixed to the main bodypart through the positioning boss. The lower cover is located at one side, away from the vibrating diaphragm, of the sound production monomer and forms sealing with the upper cover extension wall. The upper cover, the lower cover and the sound production monomer jointly enclose a rear sound cavity. Compared with the prior art, the loudspeaker box has the advantages that the volume of the rear sound cavity is large, and the low-frequency acoustic performance is excellent.

The present disclosure provides a sound absorbing material, a manufacturing method thereof and a speaker using the sound absorbing material. The speaker comprises a shell with a receiving space, a sound production unit disposed in the shell, and a rear cavity encircled by the sound production unit and the shell. The rear cavity is filled with a sound absorbing material. The sound absorbing material comprises MEL structured molecular sieves. The framework of the MEL structured molecular sieves comprises silicon dioxide.

The present invention provides a loudspeaker box, which includes a housing with a storage space and a sound-generating unit partially accommodated and fixed in the storage space. The monomer includes a diaphragm for vibrating and sounding; the upper cover includes an upper cover extension wall fixedly connected to the lower cover, and a main body part that bends and extends from the upper cover extension wall to the sounding monomer, and the main part penetrates through the outer leaking diaphragm. The sound outlet, the sound unit is equipped with a positioning boss; the shell and the positioning boss are made of metal, and the sound unit is welded and fixed to the main body through the positioning boss; the lower cover is located on the side of the sound unit away from the diaphragm and is connected to the The extension wall of the upper cover forms a seal, and the upper cover, the lower cover and the sound emitting unit together form the rear acoustic cavity. Compared with the related art, the volume of the rear acoustic cavity of the speaker box of the present invention is large, and the low-frequency acoustic performance is excellent.

The invention provides a loudspeaker box. The sounding unit divides the storage space into a front cavity and a rear cavity, and a retaining wall separates the rear cavity into a first rear cavity and a second rear cavity. The lower cover includes a lower cover body, a convex wall, The through hole, the support step and the cover plate, the lower cover body and the convex wall together form a sound guide groove, and the sound guide groove communicates with the second back cavity; the through hole connects the first back cavity with the sound guide groove; the distance between the two support steps It is arranged on opposite sides of the through hole; the cover plate completely covers the through hole; the air-permeable spacer fits on the convex wall and completely covers the sound guide groove, the second rear cavity is filled with sound-absorbing particles, and the air-permeable spacer encapsulates the sound-absorbing particles In the second rear cavity to form a virtual acoustic cavity; the airflow in the first rear cavity bypasses the blocking wall and then passes through the through hole and the sound guide groove and enters the second rear cavity through the breathable spacer. The two supporting steps are respectively located in the channel The holes are parallel to opposite sides of the direction of airflow flow. Compared with related technologies, the speaker box of the present invention has excellent low-frequency acoustic performance.

The present disclosure discloses a speaker assembly, including: a housing with an accommodation space formed by a top wall, a bottom wall, and a sidewall; a speaker received in the accommodation space. The speaker includes a first unit having a first diaphragm and a second unit having a second diaphragm; a first back cavity formed by the first unit and the bottom wall; a second back cavity formed by the second unit and the top wall. An auxiliary cavity is formed by the second diaphragm and the bottom wall; a partition wall connecting between the top wall and the bottom wall for separating the auxiliary cavity from the first back cavity. The partition wall has a through hole corresponding to the second diaphragm. The second unit has a side adjacent to the second diaphragm fixed to the partition wall.

The invention provides a loudspeaker box, and the loudspeaker box comprises a shell and a sound production monomer fixedly accommodated in the shell; the sound production monomer and the shell jointlyenclose a rear sound cavity, the sound production monomer comprises a vibrating diaphragm for vibration sound production, and the shell comprises a front cover, a rear cover and a sound outlet penetrating through the front cover; the front cover comprises a front cover body, a front cover outer side wall extending from the front cover body and a front cover inner side wall extending from the front cover body. The loudspeaker box further comprises a support, the side, provided with the vibrating diaphragm, of the sound production single body faces the sound outlet, the support comprises a support body and a support extension wall, the inner side wall of the front cover is completely embedded in the support body, and at least part of the front cover body is embedded in the support body; thesupport body is arranged around the periphery of the sound production single body and forms sealed fixation with the sound production single body. The sound production unit, the support, the front cover and the rear cover jointly form a closed rear sound cavity. Compared with the prior art, the loudspeaker box is large in cavity size and good in acoustic performance.

The invention provides a speaker box, which includes a casing and a sound-generating unit fixedly accommodated in the casing. The sound-generating unit includes a diaphragm for vibrating and sounding; the casing is made of metal material, and the casing includes a first bracket and the front cover and the rear cover respectively covering the opposite sides of the first bracket along the vibration direction of the vibrating membrane, the first bracket is provided with a through hole passing through it; the sounding unit is provided with one side of the diaphragm facing the through hole and The front cover is supported and fixed to the first bracket; the front cover includes a front cover plate arranged opposite to the sounding unit and a side wall of the front cover that is bent and extended from the periphery of the front cover plate to the first bracket and fixed to the first bracket. The wall is provided with a sound outlet running through it; the front cover, the sounding unit and the first bracket together form a front sound cavity, and the sound outlet communicates the front sound cavity with the outside world; the sounding unit, the first branch and the back cover together form rear voice. Compared with the related art, the speaker box cavity of the present invention has a large volume and good acoustic performance.

The invention discloses a sound production device, which comprises a shell, a sound production single body and a fixing piece. The shell is made of a metal material and is provided with an accommodating cavity; the sound production single body is arranged in the accommodating cavity; the fixing piece is arranged in the containing cavity and provided with a limiting groove, and the sound production single body is limited in the limiting groove; and the fixing piece is provided with a first connecting part connected with the shell and a second connecting part connected with the sound production single body. The sound production unit is limited and fixed by arranging the fixing piece, so that the stability and the reliability of the sound production unit are improved.

The present disclosure provides a speaker box, including a housing having an accommodation space, an acoustic device accommodated in the accommodation space, a first air-permeable separation component, a second air-permeable separation component. The acoustic device separates the accommodation space into a front cavity and a rear cavity. The first air-permeable separation component is fixed inside the housing and separates the rear cavity into a first rear cavity and a second rear cavity in air communication with each other. The acoustic device is located in the first rear cavity. The second rear cavity is filled with acoustic absorption particles. The second air-permeable separation component separates the second rear cavity into at least two rear sub-cavities in air communication with each other. Types of the acoustic absorption particles filled in two of the rear sub-cavities are not completely the same. Acoustic performance of the speaker box in the present disclosure is better.

The invention provides a loudspeaker box, which includes a housing with a receiving space and a sounding unit fixedly accommodated in the receiving space, the sounding unit and the housing form a closed rear acoustic cavity, and the sounding unit includes a The diaphragm; the shell is made of metal material, and the speaker box also includes an auxiliary cavity shell that is abutted and fixed on the outside of the shell. The auxiliary cavity shell and the shell together form an auxiliary sound cavity, and the shell is provided with a leak port that runs through it. , the leak connects the rear acoustic cavity with the auxiliary acoustic cavity. Compared with the related art, the loudspeaker box of the invention is easy to assemble, has high assembly reliability and good sealing performance.

The invention provides a loudspeaker box, which includes a shell made of metal material, a sounding unit and a ring-shaped bracket made of plastic material, the shell includes a front cover and a rear cover, and the bracket includes a bracket main body and The sound guide part of the bracket extending from the main body of the bracket; the sound emitting unit is supported on the bracket and spaced from the front cover; Exposed to the shell, the sound guide part of the bracket is provided with a sound guide channel; the sound unit, the bracket and the front cover together form the front sound cavity, and the sound unit, the bracket, the front cover and the rear cover together form the rear sound cavity, and the sound guide channel will The front vocal cavity communicates with the outside world. Compared with the related art, the cavity of the loudspeaker box of the present invention has large volume and good acoustic performance.