CN203015104U - Loudspeaker - Google Patents

Abstract

The utility model relates to a loudspeaker, which comprises a basin frame provided with a side wall of the basin frame, a vibration system accommodated in the basin frame for vibrating and sounding, and a magnet fixed on the pot frame for driving the vibration system to vibrate and sound. A circuit system, the vibration system includes a diaphragm and a voice coil that drives the diaphragm to vibrate and has a voice coil lead wire, the magnetic circuit system includes a magnetic cup and is assembled in the magnetic cup to form a The magnetic steel of the magnetic gap, the voice coil is placed in the magnetic gap, the magnetic bowl is provided with a magnetic bowl side wall, and the magnetic bowl side wall is provided with a groove directly below the lead wire of the voice coil. The groove runs through the side wall of the magnetic bowl in the horizontal direction, the groove is provided with a groove bottom, and the distance between the lead wire of the voice coil and the groove bottom of the groove is greater than the maximum vibration amplitude of the diaphragm. The loudspeaker provided by the utility model effectively reduces the disconnection probability of the lead wire of the voice coil, and improves the reliability of the loudspeaker.

Description

speaker

【Technical field】

The utility model relates to an electroacoustic transducer, in particular to a loudspeaker for converting electric signals into sound signals in the electroacoustic transducer.

【Background technique】

With the rapid development of wireless communication, there are more and more mobile phones in the world. People's requirements for mobile phones are not limited to basic calls, but also require more requirements for the reliability of traditional mobile phones. Especially with the advent of the 3G era, mobile multimedia technology has also developed. Many mobile phones have multiple entertainment functions, such as video playback, digital photography, games, and GPS navigation.

Related loudspeakers are generally equipped with a pot frame, a vibration system and a magnetic circuit system. The vibration system includes a diaphragm and a voice coil that drives the diaphragm to vibrate and has a voice coil lead. The magnetic circuit system includes a magnetic bowl with a magnetic bowl side wall. And the magnetic steel assembled in the magnetic bowl and forming a magnetic gap with the magnetic bowl, the voice coil is suspended in the magnetic gap. In this way, in order to electrically connect the voice coil lead wire with the outside world, it must be partly located above the side wall of the magnetic bowl. When the speaker is working, the voice coil will generate high-frequency vibration, which will drive the voice coil lead wire to vibrate. The amplitude of the voice coil vibration When it is too large, the voice coil lead often hits the side wall of the magnetic bowl, which may easily cause the voice coil lead to break, thus seriously affecting the reliability of the speaker.

Therefore, it is necessary to provide a new loudspeaker to address the above disadvantages.

【Content of utility model】

The purpose of the utility model is to solve the problem that the above-mentioned loudspeaker is disconnected due to the impact of the lead wire of the voice coil against the side wall of the magnetic bowl, which seriously affects the reliability of the loudspeaker, and provides a loudspeaker.

A loudspeaker, comprising a basin frame with a side wall of the basin frame, a vibration system accommodated in the basin frame for vibrating and sounding, and a magnetic circuit system fixed on the basin frame for driving the vibration system to vibrate and sound, the The vibration system includes a diaphragm and a voice coil that drives the diaphragm to vibrate and has voice coil leads. The magnetic circuit system includes a magnetic bowl and a magnetic steel assembled in the magnetic bowl to form a magnetic gap with the magnetic bowl , the voice coil is placed in the magnetic gap, the magnetic bowl is provided with a magnetic bowl side wall, and the magnetic bowl side wall is provided with a groove located directly below the lead wire of the voice coil, and the groove is horizontally Through the side wall of the magnetic bowl, the groove is provided with a groove bottom, and the distance between the lead wire of the voice coil and the groove bottom of the groove is greater than the maximum vibration amplitude of the diaphragm.

Preferably, the number of the grooves is four and arranged symmetrically with respect to the central axis of the magnetic bowl.

Preferably, the bottom of the groove is provided with a boss extending from the bottom of the groove to the direction of the lead wire of the voice coil, and the boss extends upward along the horizontal direction away from the magnetic bowl to form a flange, and the flange is fixed to the pot shelf.

Preferably, the side wall of the pot frame is provided with a protrusion extending from the inner side of the side wall of the pot frame and used for holding the flange, and the flange is superimposed and fixed with the protrusion.

The beneficial effect of the utility model is that: the loudspeaker provided by the utility model effectively reduces the disconnection probability of the lead wire of the voice coil, and improves the reliability of the loudspeaker.

【Description of drawings】

Fig. 1 is the three-dimensional exploded view of loudspeaker of the present invention;

Fig. 2 is a sectional view of the loudspeaker in Fig. 1;

Fig. 3 is a perspective view of the speaker in Fig. 1 without a front cover and a diaphragm.

【Detailed ways】

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1 and Figure 2, the utility model provides a loudspeaker 1, which includes a basin frame 10 provided with a side wall 101 of the basin frame, a magnetic circuit system 11 accommodated in the basin frame 10, and a vibrator fixed to the basin frame 10. The system 12 , the front cover 13 fixed above the frame 10 and forming a receiving space with the frame 10 , the welding piece 14 embedded in the frame 10 , and the hearing aid voice coil 15 . The magnetic circuit system 11 includes a magnetic bowl 16 housed in the basin frame 10, a magnetic steel 17 assembled in the magnetic bowl 16 to form a magnetic gap with the magnetic bowl 16, and a magnet attached to the magnetic steel 17. Pole core 18 on the surface. The vibration system 12 includes a diaphragm 19 fixed to the frame 10 at the periphery and a voice coil 20 that drives the diaphragm 19 to vibrate and has a voice coil lead wire 201. One end of the voice coil 20 is suspended in the magnetic gap. The other end is fixed under the diaphragm 19 . There are two soldering pieces 14, which are respectively embedded in the basin frame 10. The wire ends of the voice coil lead wires 201 are welded to the welding pieces 14, and the welding pieces 14 are partially exposed on the outer surface of the basin frame 10 so as to be electrically connected with the outside world. . The hearing aid voice coil 15 is placed on the frame 10 and between the frame 10 and the diaphragm 19 .

3, the magnetic bowl 16 is provided with a magnetic bowl side wall 161, and the magnetic bowl side wall 161 is provided with grooves 162 directly below the voice coil lead wire 201, and the number of the grooves 162 is four. and arranged symmetrically with respect to the central axis of the magnetic bowl 16. The groove 162 runs through the sidewall 161 of the magnetic bowl in the horizontal direction. The groove 162 is provided with a groove bottom 1621 , and the distance between the voice coil lead wire 201 and the groove bottom 1621 of the groove 162 is greater than the maximum vibration amplitude of the diaphragm 19 . The groove bottom 1621 of the groove 162 is provided with a boss 1622 extending from the groove bottom 1621 to the direction of the voice coil lead wire 201, because the boss 1622 is derived from the groove bottom 1621 and is integral with the groove bottom 1621, Therefore, in the present utility model, the surface of the boss 1622 facing the voice coil lead wire 201 is also counted as a part of the groove bottom 1621, and the distance between the voice coil lead wire 201 and the surface of the boss 1622 facing the voice coil lead wire 201 is also greater than that of the diaphragm 19 maximum amplitude. The raised platform 1622 extends upward along the horizontal direction away from the magnetic bowl 16 to extend a flange 1623 , and the flange 1623 is fixed to the basin frame 10 .

The side wall 101 of the basin frame is provided with a protrusion 1011 extending from the inner side of the side wall 101 of the basin frame and used to hold the flange 1623. The flange 1623 is superimposed and fixed with the protrusion 1011, as shown in the figure 2, specifically, the flange 1623 is fixed on the lower surface of the protrusion 1011.

The loudspeaker 1 provided by the utility model provides grooves 162 on the magnetic bowl side wall 161 directly below the voice coil lead wire 201, which effectively reduces the disconnection probability of the voice coil lead wire and improves the reliability of the loudspeaker.

What has been described above is only a preferred embodiment of the utility model, and it should be pointed out that, for those of ordinary skill in the art, improvements can also be made without departing from the inventive concept of the utility model, but these All belong to the protection scope of the present utility model.

Claims (4)

1. A loudspeaker, comprising a basin frame provided with a basin side wall, a vibration system accommodated in the basin frame for vibrating and sounding, and a magnetic circuit system fixed on the basin frame for driving the vibration system to vibrate and sound, The vibration system includes a diaphragm and a voice coil that drives the diaphragm to vibrate and has voice coil leads. The magnetic circuit system includes a magnetic bowl and a magnetic gap assembled in the magnetic bowl to form a magnetic gap with the magnetic bowl. Magnetic steel, the voice coil is placed in the magnetic gap, and it is characterized in that: the magnetic bowl is provided with a magnetic bowl side wall, and the magnetic bowl side wall is provided with a groove located directly below the lead wire of the voice coil. The groove runs through the side wall of the magnetic bowl in the horizontal direction, the groove is provided with a groove bottom, and the distance between the lead wire of the voice coil and the groove bottom of the groove is greater than the maximum vibration amplitude of the diaphragm. 2. The loudspeaker according to claim 1, characterized in that: the number of the grooves is four and arranged symmetrically with respect to the central axis of the magnetic bowl. 3. The loudspeaker according to claim 1 or 2, characterized in that: the bottom of the groove is provided with a boss extending from the bottom of the groove to the direction of the lead wire of the voice coil, and the boss is along a level away from the magnetic bowl. A flange is derived and extended upwards, and the flange is fixed to the pot frame. 4. The loudspeaker according to claim 3, characterized in that: the side wall of the pot frame is provided with a protruding portion extending from the inner side of the side wall of the pot frame and used to hold the flange, and the flange and The protrusions are superimposed and fixed.

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