CN216217516U

CN216217516U - Sound production structure based on car roof

Info

Publication number: CN216217516U
Application number: CN202121648905.1U
Authority: CN
Inventors: 涂孝网; 王华伟
Original assignee: Wuxi Yiwei Automobile Technology Co ltd
Current assignee: Wuxi Yiwei Automobile Technology Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-04-05
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses a sound production structure based on an automobile ceiling, which has simple and reasonable structural design and simple and quick installation and operation, can reduce the investment cost and improve the sound transmission effect.

Description

Sound production structure based on car roof

Technical Field

The utility model relates to the technical field of automobiles, in particular to a sound production structure based on an automobile ceiling.

Background

The existing automobile sound system is mainly connected with an external loudspeaker driven by a power amplifier through a Bluetooth module, a radio module or an external USB flash disk to realize sound production, call receiving and calling, music listening and the like. The traditional automobile loudspeaker widely applied is a moving-coil loudspeaker, the sound production principle of the automobile loudspeaker is from the Fleming left-hand law, a track line with current and perpendicular to magnetic lines of force is placed between north and south poles of a magnet, a wire can move under the interaction of the magnetic lines of force and the current, a vibrating diaphragm is attached to the track line, the vibrating diaphragm moves back and forth along with the change of the current, the vibrating diaphragm vibrates to push air to generate sound waves, and the sound is transmitted.

The traditional automobile loudspeaker (moving-coil loudspeaker) is used as an independent monomer and assembled inside an automobile door guard board or an instrument panel, and honeycomb-shaped small holes are required to be formed in the position of an automobile inner end plastic part corresponding to the loudspeaker so as to facilitate sound transmission; however, the installation and the sound production mode enable sound transmission to be concentrated, sound can only be transmitted from specific parts of the automobile, sound effect and user experience are affected, if the surrounding music atmosphere is generated inside the automobile, at least 4-6 loudspeakers are required to be arranged inside the automobile, and the installation and the sound production mode not only needs to be provided with a plurality of installation grooves in an automobile inner guard plate, is complex in installation and operation, but also is high in input cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sound production structure based on an automobile ceiling, which is simple and reasonable in structural design, simple and rapid in installation and operation, capable of reducing input cost and improving sound transmission effect and aims to solve the problems that in the prior art, an automobile loudspeaker is installed inside an automobile door guard board or an instrument board, a surrounding music atmosphere can be generated only by at least 4-6 loudspeakers, and the installation structure and operation are complex and high in input cost.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the sound production structure based on the automobile ceiling comprises an audio oscillator, wherein the audio oscillator is connected with audio equipment, and the sound production structure is characterized in that the audio oscillator is fixed at the inner end of the automobile ceiling and used for generating audio vibration which drives the automobile ceiling to vibrate along with the audio oscillator and amplifies the audio through the automobile ceiling.

It is further characterized in that the method further comprises the steps of,

the audio oscillator is a vibration type audio driver;

the audio oscillator is fixed at the inner end of the automobile ceiling through a mounting seat;

the inner end of the automobile ceiling is provided with a first groove, the mounting seat is fixed in the first groove and comprises a shell with an open bottom end and a hollow interior and a base fixed at the open end of the shell, the base and the open end of the shell are covered to form a cavity, the audio oscillator is fixed in the cavity, and the bottom end of the base is fixed with the first groove;

the base and the shell are clamped and fixed;

the bottom end of the outer surface of the shell is provided with an extending part, the extending part is provided with at least two clamping grooves, clamping plates corresponding to the clamping grooves are distributed at the top end of the base, the bottom ends of the clamping plates are vertically fixed with the base, clamping blocks matched with the clamping grooves are arranged at the top ends of the clamping plates, and the base is correspondingly clamped with the clamping grooves through the clamping blocks;

the number of the clamping grooves is the same as that of the clamping plates, and the number of the clamping grooves and the number of the clamping plates are four;

the fixture block is wedge-shaped; the wide part of the clamping block is slightly larger than the maximum length of the clamping groove, and when the clamping block is clamped with the clamping groove, the clamping block can conveniently penetrate through the clamping groove due to the wedge-shaped structure;

the extension part is in a plum blossom shape, and the shape of the outer edge of the base is matched with that of the extension part;

a second groove is formed in the middle of the top end of the base, and the audio oscillator is placed in the second groove;

a third groove is formed in the first groove, glue is filled in the third groove, and the bottom end of the base is fixed in the first groove through the glue;

the third groove comprises a circular groove arranged in the middle of the first groove, arc-shaped grooves distributed along the circumferential direction of the outer side of the first groove at intervals, and glue is filled in the circular groove and the arc-shaped grooves.

By adopting the structure of the utility model, the following beneficial effects can be achieved: the audio oscillator is fixed at the inner end of the automobile ceiling and used for generating audio vibration, and under the vibration action of the audio oscillator, the automobile ceiling is driven to synchronously vibrate and conduct sound, so that audio amplification is realized; and because the car roof covers the whole car cavity top, consequently can produce better sound effect in the car inside. It need not to set up a plurality of grooves in automobile door guard plate and instrument board inside, and mounting structure and easy operation also need not to set up a plurality of speakers and can produce better sound effect, and structural design is simple, has reduced the input cost.

Drawings

FIG. 1 is a schematic perspective view of an audio oscillator mounted at an inner end of a vehicle roof;

FIG. 2 is a perspective view of the mounting base;

FIG. 3 is a schematic sectional perspective view of the mounting base;

fig. 4 is a schematic structural view of the first groove and the third groove of the vehicle roof.

Detailed Description

Referring to fig. 1 to 4, a sound production structure based on an automobile ceiling comprises an audio oscillator 1, the audio oscillator 2 is connected with an audio device, the audio oscillator 1 is fixed at the inner end of the automobile ceiling 2, the audio oscillator 1 is used for generating audio vibration, the audio vibration drives the automobile ceiling 2 to vibrate along with the audio vibration, and audio conduction is realized through vibration of the automobile ceiling 2. The audio oscillator 1 in this embodiment is mounted in the middle of the front end of the roof 2 of the vehicle.

Audio oscillator 1 is fixed in the inner of car roof 2 through mount pad 3, specifically is: the inner end of the automobile roof 2 is provided with a first groove 21, and the mounting seat 3 is fixed in the first groove 21. Mount pad 3 includes that the bottom is uncovered and inside hollow casing 31, is fixed in the base 32 of casing 31 opening end, and base 32 clamps with casing 31 fixedly, and base 32 closes with casing 31 opening end lid and forms the cavity, and audio oscillator 1 is fixed in the cavity, and the bottom of base 32 is fixed with first recess 21, and the concrete mode that base 32 and first recess 21 are fixed is: seted up the third recess in the first recess 21, the third recess is including setting up in the circular recess 22 at first recess 21 middle part, along the outside circumference of first recess 21, even interval distribution's arc 23, and all filled glue in circular recess 22, the arc 23, and glue bonds in first recess 21 is passed through to the bottom of base 32. The third groove is a combined structure of the circular groove 22 and the arc-shaped groove 23, so that the base 32 can be firmly bonded in the first groove 21. The top end of the shell 31 is provided with a plurality of heat dissipation holes 36, when the audio oscillator vibrates to generate heat, the heat dissipation is realized through the heat dissipation holes 36, and the audio oscillator is prevented from being damaged due to overheating.

The bottom end of the outer surface of the shell 31 is provided with an extending part, the extending part is provided with clamping grooves 33, clamping plates corresponding to the clamping grooves 33 are distributed at the top end of the base 32, the number of the clamping grooves 33 is the same as that of the clamping plates, and the number of the clamping grooves 33 and the number of the clamping plates are four in the embodiment; the bottom end of the clamping plate is vertically fixed with the base 32, the top end of the clamping plate is provided with a clamping block 34 matched with the clamping groove 33, and the base 32 is correspondingly clamped with the clamping groove 33 through the clamping block 34. The latch 34 is wedge-shaped, and the wide portion of the latch 34 is slightly larger than the maximum length of the latch slot 33, so that when the latch 34 is latched to the latch slot 33, the wedge-shaped structure facilitates the latch 34 to pass through the latch slot 33. The extension portion of casing 31 is the plum blossom form, and the outer fringe shape of base 32 is unanimous with the shape of extension portion, and the top middle part of base 32 is provided with second recess 35, and audio frequency oscillator 1 places in second recess 35, is clearance fit between 1 top of audio frequency oscillator and the casing 31. When audio oscillator 1 vibrates, setting up of mount pad 3 has ensured that its vibration can conduct to car roof 2, base 32 and cardboard, fixture block, the second recess 35 integrated into one piece in this embodiment, casing, louvre and its extension integrated into one piece.

The audio oscillator 1 in this embodiment is a vibration type audio driver. The vibration type audio driver is connected with the USB device, or connected with the radio device through a connecting wire, or in communication connection with the mobile phone through the Bluetooth device. The audio signal is transmitted to the audio oscillator 1 through a mobile phone, a USB device or a radio, the audio signal generates an alternating magnetic field in the coil through a power amplifier inside the audio oscillator 1, the rare earth giant magnetostrictive material in the coil generates stretching deformation under the action of the magnetic field, the audio signal is converted into a vibration signal, the vibration signal is conducted to the automobile ceiling 2 through the mounting seat, the vibration signal is restored into the audio signal through the automobile ceiling 2, the audio signal is amplified, and the sound production effect is achieved. Because the automobile roof 2 covers the whole automobile cavity, the audio signal is not limited to a certain local position, and a better sound effect can be generated in the automobile. The audio oscillator is fixed with the automobile roof 2 through the mounting seat 3, during installation, the audio driver is placed in a cavity formed by enclosing the shell 31 and the base 32, the shell and the base are clamped through the clamping groove and the clamping plate, and the installation operation is simple and rapid.

The above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is to be understood that other modifications and variations directly derivable or suggested by those skilled in the art without departing from the spirit and concepts of the utility model are to be considered within the scope of the utility model.

Claims

1. The utility model provides a vocal structure based on car roof, its includes audio oscillator, audio oscillator is connected with audio equipment, a serial communication port, audio oscillator is vibration type audio driver for produce the audio vibration, audio oscillator is fixed in through the mount pad the inner of car roof, open the inner of car roof has first recess, the mount pad is fixed in the first recess, the mount pad includes the open and inside hollow casing in bottom, is fixed in the base of casing opening end, the base closes with the opening end lid of casing and forms the cavity, audio oscillator is fixed in the cavity, the bottom of base with first recess is fixed, the audio vibration drive the car roof vibrates thereupon, and passes through the car roof enlargies the audio frequency.

2. The automotive headliner-based sound generation structure as recited in claim 1, wherein the base is fixedly fastened to the housing; the bottom end of the outer surface of the shell is provided with an extending portion, the extending portion is provided with at least two clamping grooves, clamping plates corresponding to the clamping grooves are distributed at the top end of the base, the bottom ends of the clamping plates are vertically fixed with the base, clamping blocks matched with the clamping grooves are arranged at the top ends of the clamping plates, and the base is correspondingly clamped with the clamping grooves through the clamping blocks.

3. The automotive ceiling-based sound production structure according to claim 2, wherein the number of the slots is the same as that of the clamping plates, and the number of the slots and the clamping plates is four.

4. The automotive headliner-based sound emitting structure as claimed in claim 3, wherein the latch is wedge-shaped.

5. The automotive headliner-based sound emitting structure as claimed in claim 4, wherein a second groove is formed in a middle portion of a top end of the base, and the audio oscillator is placed in the second groove.

6. The automobile ceiling-based sounding structure according to claim 5, wherein a third groove is formed in the first groove, glue is filled in the third groove, and the bottom end of the base is fixed in the first groove through the glue.

7. The automobile ceiling-based sound production structure of claim 6, wherein the third groove comprises a circular groove arranged in the middle of the first groove and arc-shaped grooves distributed at even intervals along the outer circumference of the first groove, and glue is filled in both the circular groove and the arc-shaped grooves.