Automobile loudspeaker

Abstract

The utility model provides an automobile loudspeaker. The automobile loudspeaker comprises a frame, a positioning column, a damper, a voice coil, a pole piece, neodymium iron boron, a U-shaped cup, a voice diaphragm and a wiring terminal. The positioning column is coaxially fixed at the inner bottom of the basin stand, the pole piece, the neodymium iron boron and the U cup are coaxially fixed at the upper end of the positioning column in sequence from bottom to top, the outer edge of the damper is fixed on the inner wall of the basin stand, the inner edge of the damper is fixed with the peripheral wall of the voice coil, and the wiring terminal is fixed on the side wall of the basin stand; the voice diaphragm comprises an annular supporting part and an annular diaphragm part; the supporting part comprises a horizontal section and an arc-shaped section, the horizontal section is fixed at an opening in the upper end of the basin stand, the arc-shaped section protrudes upwards, the outer edge of the arc-shaped section is connected with the inner edge of the horizontal section into a whole, the diaphragm part is of a bowl-shaped structure, and the upper end of the diaphragm part is fixed with the inner edge of the arc-shaped section; the lower end of the diaphragm part is fixed with the outer peripheral wall of the voice coil above the damper; the utility model has the advantage of good low-frequency response effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to loudspeaker technical field, specifically, relate to a car loudspeaker. BACKGROUND

[0002] The loudspeaker is a device for converting current signal into sound wave signal, the side wall of the sound film in the loudspeaker currently applied in the car is an annular bevel, that is, there is the shortcoming that the sound film has small deformability, thereby when the loudspeaker plays low frequency music, there is the shortcoming that the low frequency frequency response effect is poor. SUMMARY

[0003] The utility model wants to solve the technical problem to provide a car loudspeaker, it has the advantage that the low frequency frequency response effect is good.

[0004] The utility model provides a car loudspeaker, including basin frame, positioning column, elastic wave, voice coil, pole piece, neodymium iron boron, U cup, sound film and terminal, positioning column coaxial fixed on the inner bottom of basin frame, pole piece, neodymium iron boron and U cup are fixed in sequence on the upper end of positioning column from bottom to top, the outer edge of U cup is provided with the annular extension edge of downward extension, the annular extension edge and the outside wall of neodymium iron boron and the outside wall of pole piece form annular gap, the upper end of voice coil is inserted in annular gap and cooperates with annular extension edge, neodymium iron boron and pole piece gap, the outer edge of elastic wave is fixed on the inner wall of basin frame, the inner edge of elastic wave and the outer peripheral wall of voice coil are fixed, the terminal is fixed on the side wall of basin frame, and voice coil is electrically connected with terminal;Sound film includes annular support part and annular diaphragm part;The support part includes horizontal section and arc section, the horizontal section is fixed at the opening of basin frame upper end, the arc section is convex upwards and the outer edge of arc section and the inner edge of horizontal section are connected integrally, the diaphragm part is bowl-shaped structure, the upper end of diaphragm part and the inner edge of arc section are fixed, and the lower end of diaphragm part and the outer peripheral wall of voice coil above elastic wave are fixed.

[0005] The utility model discloses a kind of car loudspeakers, including basin frame, positioning column, elastic wave, voice coil, pole piece, neodymium iron boron, U cup, sound film and terminal, positioning column coaxial fixed on the inner bottom of basin frame, pole piece, neodymium iron boron and U cup are fixed in sequence on the upper end of positioning column from bottom to top, the outer edge of U cup is provided with the annular extension edge of downward extension, the annular extension edge and the outside wall of neodymium iron boron and the outside wall of pole piece form annular gap, the upper end of voice coil is inserted in annular gap and cooperates with annular extension edge, neodymium iron boron and pole piece gap, the outer edge of elastic wave is fixed on the inner wall of basin frame, the inner edge of elastic wave and the outer peripheral wall of voice coil are fixed, the terminal is fixed on the side wall of basin frame, and voice coil is electrically connected with terminal;Sound film includes annular support part and annular diaphragm part;The support part includes horizontal section and arc section, the horizontal section is fixed at the opening of basin frame upper end, the arc section is convex upwards and the outer edge of arc section and the inner edge of horizontal section are connected integrally, the diaphragm part is bowl-shaped structure, the upper end of diaphragm part and the inner edge of arc section are fixed, and the lower end of diaphragm part and the outer peripheral wall of voice coil above elastic wave are fixed.

[0006] In a possible implementation, the outer wall of the lower end of the positioning column is provided with an annular protrusion having an outer diameter larger than that of the positioning column, and the annular protrusion is fixed to the inner bottom of the basin frame by a plurality of circumferentially spaced screws.

[0007] In a possible implementation, a first annular step is arranged on the inner side wall of the basin frame, and the outer edge of the elastic wave is supported on and adhesively fixed to the first annular step; after the structure is adopted, the first annular step can reliably support the outer edge of the elastic wave under the action of the first annular step, and the elastic wave can be reliably and conveniently fixed to the basin frame due to the adhesion of the outer edge of the elastic wave to the first annular step.

[0008] In a possible implementation, the pole piece, the neodymium iron boron and the U cup are fixed to the upper end of the positioning column through bolts, the shank of the bolt penetrates the U cup, the neodymium iron boron and the pole piece from top to bottom in sequence and is fixed to the upper end of the positioning column; after the structure is adopted, the pole piece, the neodymium iron boron and the U cup can be reliably fixed coaxially to the upper end of the positioning column under the action of the bolt.

[0009] In a possible implementation, a second annular step is arranged on the inner wall of the upper end of the basin frame, and the horizontal section is supported on and adhesively fixed to the second annular step; after the structure is adopted, the second annular step can reliably support the horizontal section under the action of the second annular step, that is, can reliably support the sound film, and the sound film can be reliably and conveniently fixed to the basin frame due to the adhesion of the horizontal section to the second annular step, that is, the sound film can be reliably and conveniently fixed to the basin frame.

[0010] In a possible implementation, the bottom of the second annular step is provided with an annular cavity, the annular cavity is filled with an adhesive, and the horizontal section is adhesively fixed to the second annular step through the adhesive in the annular cavity; after the structure is adopted, the adhesive used for bonding the horizontal section and the second annular step can penetrate into the annular cavity, so that the bonding strength of the adhesive and the second annular step can be further improved, that is, the bonding strength of the horizontal section and the second annular step can be improved, and the fixing firmness of the sound film and the basin frame can be improved.

[0011] In a possible implementation, the automobile loudspeaker further comprises a mask; a plurality of sound holes are distributed on the mask, a vertical edge is arranged at the outer edge of the mask, and the vertical edge is inserted into the second annular step and adhesively fixed to the second annular step; through the arrangement of the mask, the mask can play a protective role on the sound film, so that the sound film can be prevented from being damaged by external force, and the mask can be reliably and conveniently fixed to the basin frame due to the adhesion of the vertical edge at the outer edge of the mask to the second annular step. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a front view structural schematic diagram of the utility model;

[0013] Fig. 2 is a sectional structure schematic view of the utility model.

[0014] Fig. 3 is an exploded view of the utility model. DETAILED DESCRIPTION

[0015] First, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.

[0016] In the description of the embodiments of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0017] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0018] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0019] Reference should be made to Figs. 1-3As shown, the embodiment of the present application discloses a car speaker, which comprises a spider 1, a locating column 2, a spring 3, a voice coil 4, a pole piece 5, a neodymium iron boron 6, a U cup 7, a sound film 8 and a terminal 9; the locating column 2 is coaxially fixed on the inner bottom of the spider 1, the pole piece 5, the neodymium iron boron 6 and the U cup 7 are coaxially fixed on the upper end of the locating column 2 from bottom to top, the outer edge of the U cup 7 is provided with a downward extending annular extension edge 71, the annular extension edge 71 and the outer side wall of the neodymium iron boron 6 and the outer side wall of the pole piece 5 form an annular gap 10, the upper end of the voice coil 4 is inserted into the annular gap 10 and is in gap cooperation with the annular extension edge 71, the neodymium iron boron 6 and the pole piece 5, the outer edge of the spring 3 is fixed on the inner wall of the spider 1, the inner edge of the spring 3 is fixed with the outer peripheral wall of the voice coil 4, the terminal 9 is fixed on the side wall of the spider 1, the voice coil 4 is electrically connected with the terminal 9; the sound film 8 comprises an annular support part 81 and an annular diaphragm part 82; the support part 81 comprises a horizontal section 811 and an arc section 812, the horizontal section 811 is fixed at the opening of the upper end of the spider 1, the arc section 812 is upwardly protruded and the outer edge of the arc section 812 is integrally connected with the inner edge of the horizontal section 811, the diaphragm part 82 is in a bowl-shaped structure, the upper end of the diaphragm part 82 is fixed with the inner edge of the arc section 812, the lower end of the diaphragm part 82 is fixed with the outer peripheral wall of the voice coil 4 above the spring 3.

[0020] The outer wall of the lower end of the locating column 2 is provided with an annular convex edge 21 with a larger outer diameter than the locating column 2, the annular convex edge 21 is fixed on the inner bottom of the spider 1 through a plurality of circumferentially spaced screws 22; after the annular convex edge is fastened to the inner bottom of the spider through the screws, the lower end of the locating column can be reliably fixed on the inner bottom of the spider by adopting the structure.

[0021] The inner side wall of the spider 1 is provided with a first annular step 11, the outer edge of the spring 3 is supported on the first annular step 11 and is adhesively fixed with the first annular step 11; the outer edge of the spring can be reliably supported by the first annular step under the action of the first annular step by adopting the structure, and the outer edge of the spring is adhesively fixed with the first annular step, so that the spring can be reliably and conveniently fixed with the spider.

[0022] The pole piece 5, the neodymium iron boron 6 and the U cup 7 are fixed on the upper end of the locating column 2 through bolts, the shank portions of the bolts are sequentially penetrated through the U cup 7, the neodymium iron boron 6 and the pole piece 5 from top to bottom and are fixed with the upper end of the locating column 2; the pole piece, the neodymium iron boron and the U cup can be coaxially fixed on the upper end of the locating column under the action of the bolts by adopting the structure.

[0023] The inner wall of the upper end of the frame 1 is provided with a second annular step 12, and the horizontal section 811 is supported on and adhesively fixed to the second annular step 12; after the adoption of this structure, the second annular step can reliably support the horizontal section, i.e., reliably support the diaphragm, under the action of the second annular step, and since the horizontal section is adhesively fixed to the second annular step, the diaphragm can be reliably and conveniently fixed to the frame, i.e., the diaphragm can be reliably and conveniently fixed to the frame.

[0024] The bottom of the second annular step 12 is provided with an annular cavity 121, the annular cavity 121 is filled with adhesive, and the horizontal section 811 is adhesively fixed to the second annular step 12 through the adhesive in the annular cavity 121; after the adoption of this structure, the adhesive used to adhesively fix the horizontal section to the second annular step can penetrate into the annular cavity, thereby further improving the adhesive strength of the adhesive and the second annular step, i.e., improving the adhesive strength of the horizontal section and the second annular step, i.e., improving the fixing firmness of the diaphragm and the frame.

[0025] The automobile loudspeaker further comprises a cover 20; the cover 20 is provided with a plurality of sound holes 201, and the outer edge of the cover 20 is provided with a vertical edge 202 which is inserted into the second annular step 12 and adhesively fixed to the second annular step 12; through the provision of the cover, the cover can protect the diaphragm, thereby avoiding the diaphragm from being damaged by external force, and since the vertical edge at the outer edge of the cover is inserted into the second annular step and adhesively fixed to the second annular step 12, the cover can be reliably and conveniently fixed to the frame.

[0026] The above merely describes a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A car loudspeaker, comprising a frame (1), a positioning post (2), a spider (3), a voice coil (4), a pole piece (5), a neodymium iron boron (6), a U-cup (7), a diaphragm (8), and a terminal block (9); the positioning post (2) is coaxially fixed to the inner bottom of the frame (1), the pole piece (5), the neodymium iron boron (6), and the U-cup (7) are coaxially fixed to the upper end of the positioning post (2) from bottom to top, and the outer edge of the U-cup (7) is provided with a downwardly extending annular extension edge (71), the annular extension edge (71) and the neodymium iron boron (6) are connected to the diaphragm (8) and the terminal block (9); An annular gap (10) is formed between the outer wall of the boron (6) and the outer wall of the electrode (5). The upper end of the voice coil (4) is inserted into the annular gap (10) and is in clearance fit with the annular extension edge (71), the neodymium iron boron (6), and the electrode (5). The outer edge of the spring (3) is fixed to the inner wall of the frame (1), and the inner edge of the spring (3) is fixed to the outer peripheral wall of the voice coil (4). The terminal block (9) is fixed to the side wall of the frame (1), and the voice coil (4) is electrically connected to the terminal block (9). The characteristic feature is that: The diaphragm (8) includes a ring-shaped support portion (81) and a ring-shaped diaphragm portion (82); the support portion (81) includes a horizontal section (811) and an arc-shaped section (812), the horizontal section (811) is fixed at the opening at the upper end of the frame (1), the arc-shaped section (812) protrudes upward and the outer edge of the arc-shaped section (812) is connected to the inner edge of the horizontal section (811) as a whole, the diaphragm portion (82) has a bowl-shaped structure, the upper end of the diaphragm portion (82) is fixed to the inner edge of the arc-shaped section (812), and the lower end of the diaphragm portion (82) is fixed to the outer peripheral wall of the voice coil (4) located above the spider (3).

2. The car speaker according to claim 1, characterized in that: The lower end of the positioning post (2) is provided with an annular protrusion (21) with an outer diameter larger than that of the positioning post (2). The annular protrusion (21) is fixed to the inner bottom of the basin frame (1) by a number of screws (22) that are circumferentially spaced.

3. The car speaker according to claim 1, characterized in that: The inner wall of the basin frame (1) is provided with a first annular step (11), and the outer edge of the elastic wave (3) is supported on the first annular step (11) and bonded and fixed to the first annular step (11).

4. The car speaker according to claim 1, characterized in that: The electrode (5), neodymium iron boron (6) and U-cup (7) are fixed to the upper end of the positioning post (2) by bolts. The bolt thread passes through the U-cup (7), neodymium iron boron (6) and electrode (5) from top to bottom and is then fixed to the upper end of the positioning post (2).

5. The car speaker according to any one of claims 1-4, characterized in that: The inner wall of the upper end of the basin frame (1) is provided with a second annular step (12), and the horizontal section (811) is supported on the second annular step (12) and bonded and fixed to the second annular step (12).

6. The car speaker according to claim 5, characterized in that: The bottom of the second annular step (12) is provided with an annular cavity (121), which is filled with adhesive. The horizontal segment (811) is also bonded and fixed to the second annular step (12) by the adhesive located in the annular cavity (121).

7. The car speaker according to claim 5, characterized in that: The car speaker also includes a mask (20); the mask (20) has a plurality of sound holes (201) distributed on it, and a vertical edge (202) is provided at the outer edge of the mask (20). The vertical edge (202) is inserted into the second annular step (12) and glued to the second annular step (12).

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