Abstract: The present invention provides a speaker including: a frame, a vibration system and a magnetic circuit system. The vibration system includes a vibration diaphragm and a voice coil. The magnetic circuit system includes a magnetic part, and the voice coil is arranged around the magnetic part. The vibration system further includes an elastic plate with two branch elastic plates. The branch elastic plate includes a connection part, an extension part, an elastic arm and a fixed part. The surfaces of the connection part and the extension part facing the connection surface are recessed together to form a welding slot, and the lead wire is accommodated in the welding slot. The speaker provided by the present invention can not only effectively prevent the voice coil from swaying, but also reduce the number of parts to simplify the product structure.

Abstract: A speaker including a frame; a magnetic circuit system fixed to the frame, comprises a plurality of magnetic circuit devices connected to each with a magnetic gap; a vibration system driven by the magnetic to vibrator, comprises a diaphragm fixed to the frame and a plurality of voice coil assembly inserted into the magnetic gap drive the diaphragm vibrate jointly. the speaker can drive the diaphragm to vibrate and produce sound with a greater driving force, and the magnetic circuit system has a higher magnetic field. The efficiency makes the speaker have a better sound effect.

Abstract: Provided is a vibration exciter, comprising a shell having a receiving space, a vibration unit suspended in the shell, a coil configured to drive the vibration unit, and an elastic member configured to suspend the vibration unit in the shell. The vibration unit comprises a mass block fixedly connected to the elastic member. The mass block comprises fixing planes opposite to each other along a vibration direction. The elastic member has one end fixed to the mass block and another end fixed to the shell, and a projection of the elastic member in the vibration direction is at least partially located in the fixing planes. Compared with the related art, the vibration exciter provided by the present invention can improve the vibration stability.

Abstract: The present disclosure provides a speaker, including a frame, a vibration system, a magnetic circuit system, the vibration system includes a first diaphragm and a second diaphragm which are fixed to two opposite sides of the frame, a first voice coil to drive the first diaphragm to vibrate, and a second voice coil assembly to drive the second diaphragm to vibrate. The vibration system further includes a first elastic wave assembly and a second elastic wave assembly which are fixed to the frame and are spaced from each other. The first elastic wave assembly and the second elastic wave assembly are in staggered distribution and antiphase vibration. By means of the staggered distribution of the first elastic wave assembly and the second elastic wave assembly, the first elastic wave assembly and the second elastic wave assembly make reasonable use of an internal space of the speaker.

Abstract: The present invention provides a speaker including: a frame, a vibration system and a magnetic circuit system. The vibration system includes a vibration diaphragm and a voice coil. The magnetic circuit system includes a magnetic part, and the voice coil is arranged around the magnetic part. The vibration system further includes an elastic plate with two branch elastic plates. The branch elastic plate includes a connection part, an extension part, an elastic arm and a fixed part. The surfaces of the connection part and the extension part facing the connection surface are recessed together to form a welding slot, and the lead wire is accommodated in the welding slot. The speaker provided by the present invention can not only effectively prevent the voice coil from swaying, but also reduce the number of parts to simplify the product structure.

Abstract: The present disclosure provides a speaker including a frame, a vibration system, and a magnetic circuit system, wherein the vibration system includes a first vibration diaphragm and a second vibration diaphragm which are fixed to two opposite sides of the frame, the magnetic circuit system includes a bobbin, a magnet fixed in the bobbin and spaced from an inner wall of the bobbin, a first pole plate fixed on one side of the magnet close to the first vibration diaphragm, a second pole plate fixed to one side of the magnet close to the second vibration diaphragm, and a third pole plate fixed outside the bobbin and spaced from an outer wall of the bobbin. The first voice coil assembly and the second voice coil assembly move inside and outside in a staggered manner, which saves a Z-directional space of the speaker and achieves higher magnetic field efficiency.

Abstract: A speaker including a frame;a magnetic circuit system fixed to the frame, comprises a plurality of magnetic circuit devices connected to each with a magnetic gap;a vibration system driven by the magnetic to vibrator, comprises a diaphragm fixed to the frame and a plurality of voice coil assembly inserted into the magnetic gap drive the diaphragm vibrate jointly. the speaker can drive the diaphragm to vibrate and produce sound with a greater driving force, and the magnetic circuit system has a higher magnetic field. The efficiency makes the speaker have a better sound effect.

Abstract: The present disclosure provides a speaker including a frame, a vibration system, and a magnetic circuit system, wherein the vibration system includes a first vibration diaphragm and a second vibration diaphragm which are fixed to two opposite sides of the frame, the magnetic circuit system includes a bobbin, a magnet fixed in the bobbin and spaced from an inner wall of the bobbin, a first pole plate fixed on one side of the magnet close to the first vibration diaphragm, a second pole plate fixed to one side of the magnet close to the second vibration diaphragm, and a third pole plate fixed outside the bobbin and spaced from an outer wall of the bobbin. The first voice coil assembly and the second voice coil assembly move inside and outside in a staggered manner, which saves a Z-directional space of the speaker and achieves higher magnetic field efficiency.

Abstract: The present disclosure provides a speaker, including a frame, a vibration system, a magnetic circuit system, the vibration system includes a first diaphragm and a second diaphragm which are fixed to two opposite sides of the frame, a first voice coil to drive the first diaphragm to vibrate, and a second voice coil assembly to drive the second diaphragm to vibrate. The vibration system further includes a first elastic wave assembly and a second elastic wave assembly which are fixed to the frame and are spaced from each other. The first elastic wave assembly and the second elastic wave assembly are in staggered distribution and antiphase vibration. By means of the staggered distribution of the first elastic wave assembly and the second elastic wave assembly, the first elastic wave assembly and the second elastic wave assembly make reasonable use of an internal space of the speaker.

Abstract: A vibration sounding device includes a panel, and an electromagnetic driver attached to the panel and configured to drive the panel to vibrate and sound. The electromagnetic driver includes a housing, a driving unit received in the housing, and a cover. The cover is attached to the panel. The driving unit includes a coil assembly mounted to the cover and a pair of magnet assemblies mounted to the housing. The coil assembly includes a coil defining an axial direction around which the coil is wound. The pair of magnet assemblies is located at opposite sides of the coil assembly with gaps formed therebetween in the axial direction. The electromagnetic driver includes a first elastic member configured to support the coil assembly in the housing. The first elastic member is connected between the coil assembly and the housing and configured to provide an elastic supporting force for the coil assembly.

Abstract: A sounding device includes a first housing having a first receiving space with a first opening end; a second housing disposed opposite to and spaced apart from the first housing, the second housing having a second receiving space with a second opening end facing the first opening end, the second housing comprising an end wall opposite to the second opening end; a magnetically conductive core received in the second receiving space and fixed to the end wall; a coil received in the second receiving space and wound around the magnetically conductive core; a first magnet received in the first receiving space; a second magnet received in the second receiving space, the second magnet being located at outside of the coil and spaced apart from the coil; and a third magnet received in the first receiving space and disposed on a peripheral side of the first magnet.

Abstract: A screen sound generation device includes a screen configured for vibrating and generating sound, an exciter configured for driving the screen to vibrate and generate sound, and a middle frame configured for receiving and fixing the screen and the exciter. The vibration direction of the exciter is perpendicular to the screen. The screen sound generation device further includes a fixing part by which the exciter is detachably fixed to a side of the screen. The fixing part includes a limit block with a threaded hole therein and a steel sheet attached to the screen, the limit block is fixed to the steel sheet, and the exciter is fixed to the steel sheet by a connecting structure with threads. The screen sound generation device according to the present disclosure provides a flexible assembly method, a reduced difficulty of assembly and an improved working efficiency.

Abstract: An electromagnetic driving device includes a panel, and an electromagnetic driver attached to the panel and configured to vibrate the panel in a vibrating direction to generate sound. The electromagnetic driver includes a housing, a cover, and a driving unit disposed between the housing and the cover. The cover is attached to the panel. The driving unit includes a magnetic core, a coil wound around the magnetic core and mounted to the cover with a gap formed between the coil and the housing, and a pair of magnetic assemblies mounted to the housing and disposed on opposite axial sides of the coil. Magnetic fluxes emitted from one of the magnetic assemblies arrive at the other of the magnetic assemblies after passing through the coil. Screens of mobile terminals using the electromagnetic driving device have good acoustic effect and good reliability.

Abstract: A vibration sounding device includes a panel, and an electromagnetic driver attached to the panel and configured to drive the panel to vibrate and sound. The electromagnetic driver includes a housing, a driving unit received in the housing, and a cover. The cover is attached to the panel. The driving unit includes a coil assembly mounted to the cover and a pair of magnet assemblies mounted to the housing. The coil assembly includes a coil defining an axial direction around which the coil is wound. The pair of magnet assemblies is located at opposite sides of the coil assembly with gaps formed therebetween in the axial direction. The electromagnetic driver includes a first elastic member configured to support the coil assembly in the housing. The first elastic member is connected between the coil assembly and the housing and configured to provide an elastic supporting force for the coil assembly.

Abstract: A sounding device includes a first housing having a first receiving space with a first opening end; a second housing disposed opposite to and spaced apart from the first housing, the second housing having a second receiving space with a second opening end facing the first opening end, the second housing comprising an end wall opposite to the second opening end; a magnetically conductive core received in the second receiving space and fixed to the end wall; a coil received in the second receiving space and wound around the magnetically conductive core; a first magnet received in the first receiving space; a second magnet received in the second receiving space, the second magnet being located at outside of the coil and spaced apart from the coil; and a third magnet received in the first receiving space and disposed on a peripheral side of the first magnet.

Abstract: A screen sound generation device includes a screen configured for vibrating and generating sound, an exciter configured for driving the screen to vibrate and generate sound, and a middle frame configured for receiving and fixing the screen and the exciter. The vibration direction of the exciter is perpendicular to the screen. The screen sound generation device further includes a fixing part by which the exciter is detachably fixed to a side of the screen. The fixing part includes a limit block with a threaded hole therein and a steel sheet attached to the screen, the limit block is fixed to the steel sheet, and the exciter is fixed to the steel sheet by a connecting structure with threads. The screen sound generation device according to the present disclosure provides a flexible assembly method, a reduced difficulty of assembly and an improved working efficiency.

Abstract: The present invention provides an electromagnetic actuator which includes a housing body having an accommodation space, a stator accommodated in the accommodation space, a vibrator arranged opposite to the stator with distance and an elastic assembly suspending the vibrator in the accommodation space. The elastic assembly comprises two springs in a planar structure, and the two springs are respectively provided on opposite sides of the vibrator along the vibration direction of the vibrator. Each of the springs is fixedly connected to the vibrator and extended to be fixed at the housing body. Compared with the related technology, the electromagnetic actuator of the present invention has good vibration stability and better vibration performance.

Abstract: Provided is a vibration exciter, comprising a shell having a receiving space, a vibration unit suspended in the shell, a coil configured to drive the vibration unit, and an elastic member configured to suspend the vibration unit in the shell. The vibration unit comprises a mass block fixedly connected to the elastic member. The mass block comprises fixing planes opposite to each other along a vibration direction. The elastic member has one end fixed to the mass block and another end fixed to the shell, and a projection of the elastic member in the vibration direction is at least partially located in the fixing planes. Compared with the related art, the vibration exciter provided by the present invention can improve the vibration stability.

Abstract: Embodiments relate generally to a limit switch comprising a switch housing; a contact block assembly comprising a contact plunger and a switch circuit; a head assembly comprising a lever; a reset plunger configured to fit within the housing, configured to interact with the head assembly and the contact plunger; and a reset assembly comprising a reset button and a reset axis, configured to attach to the housing and to interact with the reset plunger, wherein the head assembly moves the reset plunger downward against a bias, wherein, when the reset plunger is moved down a predetermined amount, the reset axis moves into an opening in the reset plunger, due to a bias on the reset axis, wherein when the reset plunger moves downward, the contact plunger also moves downward against a bias, and wherein the contact plunger is configured to control the switch circuit.