Abstract
Disclosed is a vibration loudspeaker, comprising a housing, a back lid matching the housing, and a vibration system and a magnetic circuit system in the housing; the housing and the back lid are both square-shaped structures; the four corners of the square-shaped structure of the housing are provided with a recess, and the four corners of the back lid corresponding to the four corners of the housing are provided with a step, such that the back lid and the housing snap together and fix to each other. The vibration loudspeaker of the present invention effectively enhances the firmness of the fitting between the back lid and the housing, thereby enhancing the overall strength of the vibration loudspeaker product of the present invention. The vibration loudspeaker of the present invention has high overall strength, good reliability, and strong shock resistance.
Claims
1. A vibration loudspeaker, comprising a housing, a back lid matching the housing, and a vibration system and a magnetic circuit system accommodated in the housing, wherein the housing and the back lid both have square-shaped structures, four corners of the square-shaped structure of the housing are provided with recesses, and the back lid is provided with steps at places corresponding to the recesses of the corners of the housing, and the back lid and the housing snap together and fix to each other, wherein positioning structures are provided in the recesses of the four corners of the housing, the recess of each of the corners of the housing is provided with two positioning structures, the housing is provided with eight positioning structures, and the back lid is provided with eight location holes at positions corresponding to the position structures.
2. The vibration loudspeaker according to claim 1, wherein the positioning structures are hot-melt columns.
3. The vibration loudspeaker according to claim 1, wherein the housing having the square-shaped structure is further provided with positioning bosses extending laterally.
4. The vibration loudspeaker according to claim 3, wherein a number of the positioning bosses are two, and the two positioning bosses are provided at both ends of a side of the square-shaped housing, respectively.
5. The vibration loudspeaker according to claim 3, wherein a number of the positioning bosses are two, and the two positioning bosses are provided at the middle of a side of the square-shaped housing, respectively.
6. The vibration loudspeaker according to claim 3, wherein the vibration loudspeaker further comprises electric connecting pieces, the electric connecting pieces are provided on the positioning bosses.
7. The vibration loudspeaker according to claim 6, wherein the electric connecting pieces are springs.
8. The vibration loudspeaker according to claim 6, wherein the electric connecting pieces are leaf springs.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) FIG. 1 is a perspective view of a vibration loudspeaker according to a particular embodiment of the present invention;
(2) FIG. 2 is an exploded view of the vibration loudspeaker shown in FIG. 1;
(3) FIG. 3 is a cross-sectional view of the vibration loudspeaker shown in FIG. 1;
(4) FIG. 4 is a perspective view of the structure of the housing of a vibration loudspeaker of the present embodiment;
(5) FIG. 5 is a perspective view of the structure of the back lid of the vibration loudspeaker of the present embodiment; and
(6) FIG. 6 is an enlarged view of part I of the vibration loudspeaker shown in FIG. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
(7) The contents of the present invention will be described in detail with reference to the accompanying drawings.
(8) As shown in FIGS. 1, 2 and 3, the vibration loudspeaker according to the present invention comprises a housing 1, a back lid 2 fixedly matching with one end of the housing 1, and a front cover 11 fixed to the other end of the housing 1. The housing 1, the back lid 2 and the front cover 11 cooperate to form a cavity for accommodating and fixing a vibration system and a magnetic circuit system. As shown in FIGS. 2 and 3, the vibration system comprises a diaphragm 32, a reinforcing portion 31 fixed to the diaphragm and a voice coil 33. The voice coil 33 and the reinforcing portion 31 are fixed to the housing 1 through the diaphragm 32. The magnetic circuit system comprises a washer 51, a magnet 52 and a basin frame 53, which are fixedly combined together sequentially. The magnet 52 and the washer 51 are fixed inside the basin frame 53 and form a magnetic gap between side walls of the basin frame 53, and the voice coil 33 of the vibration system is suspended in the magnetic gap. As shown in FIGS. 2 and 3, the vibration loudspeaker of the present invention further comprises a support piece 41 and a mass block 42. As shown in FIG. 3, the mass block 42 has an annular structure, and the mass block 42 is circlewise provided on the outer side of the basin frame 53 and fixed to the basin frame 53. The support piece 41 comprises a second fixing portion provided inside and a first fixing portion fixed to the housing, and the second fixing portion of the support piece 41 is fixed to the frame basin 53. The basin frame 53 is suspended inside the housing 1 through the support piece 41. When the vibration loudspeaker of the present invention is operated, the voice coil 33 is supplied with a drive current. As the voice coil 33 is provided in the magnetic gap, the voice coil is applied with Lorentz force due to the varied current in the voice coil 33 provided in the magnetic field. At the same time, the magnetic circuit system suspended in the housing 1 is applied with a reaction force. When the voice coil 33 is supplied with a low frequency signal, the reaction force applied to the magnetic circuit system is resonated with the mass block, and thus the vibration sense of the vibration loudspeaker is obvious, and the vibration loudspeaker may function to vibrate. When the voice coil 33 is supplied with a relatively higher frequency signal, the voice coil 33 vibrates significantly so as to drive the diaphragm 32 to vibrate and emit a sound, and thus the vibration loudspeaker functions to emit the sound. The vibration loudspeaker of the present invention is added with a vibration function on the basis of a loudspeaker, and saves the internal space and the assembling process of a portable electronic terminal.
(9) As shown in FIGS. 1, 4 and 6, in the vibration loudspeaker of the present invention, the housing 1 has a square-shaped structure, and the back lid 2 correspondingly has a square-shaped structure. The four corners of the housing 1 are provided with recesses 1a, the back lid 2 is provided with steps 2a at places corresponding to the recesses 1a, that is, both ends of the four sides of the square-shaped back lid 2 are provided with steps 2a, and the back lid 2 and the housing 1 are snapped together and fixed by the recesses 1a and the steps 2a. The vibration loudspeaker of such structure effectively enhances the firmness of the fixation between the back lid 2 and the housing 1, thereby enhancing the overall strength of the vibration loudspeaker of the present invention.
(10) As a preferred embodiment, positioning structures 1b are provided in the recesses 1a of the corners of the housing 1, as shown in FIGS. 4 and 6. The housing 2 is provided with location holes 2b corresponding to the positioning structures 1b, as shown in FIGS. 5 and 6. In the vibration loudspeaker according to the present embodiment, two positioning structures 1b are provided in the recesses 1a, and the positioning structures 1b are provided at both ends of the four sides of the square-shaped housing 1, respectively. The location holes 2b in the back lid 2 are provided to correspond to the positioning structures 1b. The positioning structures 1b of the present embodiment are hot-melt columns. The hot-melt columns 1b are hot-melted after fitted with the location holes 2b, thereby further improving the firmness of the fitting between the back lid 2 and the housing 1. In addition, the eight hot-melt columns 1b are tightly combined with the back lid after being hot-melted, which effectively disperses the external pressure applied to the back lid 2, thereby preventing the deformation of the back lid 2, and improving the impact resistance capacity of the product.
(11) As shown in FIG. 4, in order to improve the effective cooperation with the external portable electronic device when the vibration loudspeaker is assembled, the vibration loudspeaker of the present invention is further provided with positioning bosses 1c which are lateral extensions on the housing 1. In the present embodiment, the number of the positioning bosses 1c is two, and the positioning bosses are provided at both ends of the long side of the housing 1. In practical applications, the positioning bosses may be provided at both ends of the short side or may be provided at the middle of the side, both of which can achieve the advantages of the vibration loudspeaker of the present invention.
(12) The vibration loudspeaker of the present invention further comprises electric connecting pieces which electrically connect the voice coil with the external drive circuit. In order to improve the utilization of the internal space of the vibration loudspeaker, the electric connecting pieces can be arranged on the positioning bosses, which do not occupy the internal space of the vibration loudspeaker, and facilitates the improvement of the performance of the vibration loudspeaker. In practical applications, the electric connecting pieces may be springs or leaf springs.
(13) In the vibration loudspeaker of the present invention, the four corners of the square-shaped structure of the housing are provided with recesses, and the back lid is provided with steps at places corresponding to the recesses, that is, the ends of the sides of the square-shaped back lid are provided with steps, and the stepped structures of the back lid correspond to the recesses of the housing, and the back lid and the housing snap together. The vibration loudspeaker of such structure effectively enhances the firmness of the fitting between the back lid and the housing, thereby enhancing the overall strength of the vibration loudspeaker product of the present invention.
(14) The vibration loudspeaker of the present invention has a high overall strength, a good reliability, and a strong impact resistance.
(15) The above mentioned are only embodiments of the present invention and are not for limiting the present invention, thus the equivalent modification or variation made by those skilled in the art according to the present invention should be incorporated into the protection scope recited in the claims.
