CN112533128A

CN112533128A - Loudspeaker sound cavity

Info

Publication number: CN112533128A
Application number: CN202011515734.5A
Authority: CN
Inventors: 杨太发; 林喆
Original assignee: Shanghai Sunmi Technology Group Co Ltd; Shenzhen Michelangelo Technology Co Ltd
Current assignee: Shanghai Sunmi Technology Group Co Ltd; Shanghai Sunmi Technology Co Ltd; Shenzhen Michelangelo Technology Co Ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-03-19

Abstract

The invention discloses a loudspeaker sound cavity, comprising: the device comprises an upper sealing cover, a lower sealing cover clamped with the upper sealing cover and a horn semi-finished product structure arranged on the upper sealing cover; the semi-finished structure of the loudspeaker comprises a loudspeaker vibrating diaphragm arranged on the upper sealing cover, a loudspeaker conical basin contacted with the loudspeaker vibrating diaphragm and a permanent magnet arranged on the lower sealing cover, and a loudspeaker coil is wound on the loudspeaker conical basin. According to the invention, the assembly is convenient, the maintainability is improved, and the overall cost of the sound cavity is greatly reduced.

Description

Loudspeaker sound cavity

Technical Field

The invention relates to the technical field of loudspeakers, in particular to a loudspeaker sound cavity.

Background

The design of the sound cavity of the unified horn is that a complete horn single body is placed in a sound cavity shell, the upper shell and the lower shell of the sound cavity are sealed by glue dispensing or ultrasonic hot melting, and the cost of the complete horn single body is high; the loudspeaker mainly comprises a loudspeaker body, a loudspeaker vibrating diaphragm, magnetic steel, a coil, a loudspeaker metal support, a sound cavity upper shell, a sound cavity lower shell, a loudspeaker membrane material, glue dispensing sealing or ultrasonic hot melting sealing and the like after process assembly. The cost of materials, labor, assembly, process and the like is high, and meanwhile, the product cannot be maintained after being defective due to sealing by ultrasonic hot melting or dispensing and other processes, and finally the integral rejection of the independent sound cavity is caused.

Most of current scheme is loudspeaker for independent sound chamber, and structural design is complicated, and sealed technology is complicated, and the sound chamber equipment is inconvenient around, and unable maintenance after whole loudspeaker ultrasonic wave or point are glued and are sealed, and numerous bad and factor such as reprocessing lead to independent sound chamber costsly.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a loudspeaker sound cavity which is convenient to assemble, improves the maintainability and greatly reduces the overall cost of the sound cavity. To achieve the above objects and other advantages in accordance with the present invention, there is provided a horn sound cavity comprising:

the device comprises an upper sealing cover, a lower sealing cover clamped with the upper sealing cover and a horn semi-finished product structure arranged on the upper sealing cover;

the semi-finished structure of the loudspeaker comprises a loudspeaker vibrating diaphragm arranged on the upper sealing cover, a loudspeaker conical basin contacted with the loudspeaker vibrating diaphragm and a permanent magnet arranged on the lower sealing cover, and a loudspeaker coil is wound on the loudspeaker conical basin.

Preferably, a horn groove is formed in the upper end face of the upper sealing cover, the horn groove is stepped, and a horn vibrating diaphragm is embedded in the horn groove.

Preferably, at least two clamping blocks are fixedly connected to the peripheral edge of the upper sealing cover, at least two clamping grooves are formed in the peripheral inner wall of the lower sealing cover, and the clamping blocks are matched with the clamping grooves.

Preferably, a magnet accommodating groove is fixedly connected to the lower sealing cover, a permanent magnet is embedded in the magnet accommodating groove, and the magnet accommodating groove and the permanent magnet are in the same shape and are cylindrical.

Preferably, a sealing ring is arranged at the joint between the upper sealing cover and the lower sealing cover, and sealing foam is arranged on the periphery of the lower sealing cover.

Compared with the prior art, the invention has the beneficial effects that: through last sealed lid and the joint of lower sealing cover, convenient equipment and dismantlement maintenance practice thrift loudspeaker sound chamber material reduce the cost, loudspeaker tone quality obtains improving and optimizing, promotion volume production promotion, refuse to adopt glue simultaneously, harmful substance such as glue solution prevents human injury and environmental pollution, improves traditional loudspeaker assembly process and sealed mode, practices thrift and reduces the design and uses the structure. The complexity of horn design and sealing can be effectively solved, the product quality is improved, and the total cost of a horn sound cavity is saved simultaneously by secondary ultrasonic technology and the like.

Drawings

FIG. 1 is a schematic diagram of a horn cavity according to the present invention;

in the figure: 10. an upper sealing cover; 20. a lower sealing cover; 30. sealing the foam; 40. a permanent magnet; 50. a horn coil; 60. a horn cone; 70. loudspeaker vibrating diaphragm.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a horn sound cavity comprises: the structure comprises an upper sealing cover 10, a lower sealing cover 20 clamped with the upper sealing cover 10 and a horn semi-finished product structure arranged on the upper sealing cover 10; loudspeaker semi-manufactured goods structure including set up loudspeaker vibrating diaphragm 70 on last sealed lid 10, with loudspeaker vibrating diaphragm 70 contact loudspeaker cone basin 60 and set up in the permanent magnet 40 of lower sealing lid 20, the winding has loudspeaker coil 50 on the loudspeaker cone basin 60, through assemble respectively after loudspeaker vibrating diaphragm 70 and permanent magnet 40 split on lower sealing lid 20, the rethread last sealed lid 10 is sealed with lower sealing lid 20 buckle and sealing member equipment, has practiced thrift loudspeaker metal support, the mould material that the loudspeaker is relevant, loudspeaker assembly cost, the sealed expense of sound chamber point gluing or supersound hot melt.

Further, a horn groove is formed in the upper end face of the upper sealing cover 10, the horn groove is stepped, and a horn diaphragm 70 is embedded in the horn groove.

Further, the rigid coupling has two at least fixture blocks on the border all around of last sealed lid 10, two at least draw-in grooves have been seted up on the inner wall all around of lower sealed lid 20, the fixture block with the draw-in groove phase-match is through the mode of joint, and convenient the dismantlement also appears badly in the use when loudspeaker test, can be through dismantling relevant binding putting, the maintenance with change bad structure can.

Further, a magnet accommodating groove is fixedly connected to the lower sealing cover 20, a permanent magnet 40 is embedded in the magnet accommodating groove, and the magnet accommodating groove and the permanent magnet 40 have the same shape and are cylindrical.

Further, a sealing ring is arranged at the joint between the upper sealing cover 10 and the lower sealing cover 20, and sealing foam 30 is arranged on the peripheral edge of the lower sealing cover 20.

The working principle is as follows: when the speaker receives the electrical signal output by the audio source device, the current passes through the speaker coil 50 and generates a magnetic field response. The current passing through the horn coil 50 is an alternating current, and the positive and negative poles thereof are constantly changed; the positive pole and the negative pole meet and attract each other, and the horn coil 50 is attracted by the permanent magnet 40 on the horn to drive the horn cone 60 and the horn diaphragm 70 to move towards the inside of the sound cavity; the positive poles and the negative poles are mutually repelled when meeting, and the horn coil 50 moves to the outside of the sound cavity. This contraction and expansion rhythm generates sound waves and air currents and emits sound. Meanwhile, the invention adopts an assembled cavity design sealing scheme, so that the loudspeaker sound cavity is softer and more pleasant after sounding, and the sound quality testing requirements of desk type and cabinet type related products are met.

The number of devices and the scale of the processes described herein are intended to simplify the description of the invention, and applications, modifications and variations of the invention will be apparent to those skilled in the art.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. A horn sound cavity, comprising:

the device comprises an upper sealing cover (10), a lower sealing cover (20) clamped with the upper sealing cover (10) and a horn semi-finished product structure arranged on the upper sealing cover (10);

the semi-finished structure of the loudspeaker comprises a loudspeaker vibrating diaphragm (70) arranged on an upper sealing cover (10), a loudspeaker cone-shaped basin (60) contacted with the loudspeaker vibrating diaphragm (70) and a permanent magnet (40) arranged on a lower sealing cover (20), and a loudspeaker coil (50) is wound on the loudspeaker cone-shaped basin (60).

2. A loudspeaker sound cavity according to claim 1, wherein the upper sealing cover (10) has a loudspeaker groove on its upper end surface, the loudspeaker groove is stepped, and the loudspeaker diaphragm (70) is embedded in the loudspeaker groove.

3. The loudspeaker sound cavity as claimed in claim 1, wherein at least two clamping blocks are fixedly connected to the peripheral edge of the upper sealing cover (10), at least two clamping grooves are formed in the peripheral inner wall of the lower sealing cover (20), and the clamping blocks are matched with the clamping grooves.

4. A horn sound chamber as defined in claim 1, wherein a magnet receiving groove is fixed in the lower sealing cover (20), a permanent magnet (40) is embedded in the magnet receiving groove, and the magnet receiving groove and the permanent magnet (40) have the same shape and are cylindrical.

5. A horn sound cavity according to claim 1, characterized in that a sealing ring is arranged at the joint between the upper sealing cover (10) and the lower sealing cover (20), and sealing foam (20) is arranged on the peripheral edge of the lower sealing cover (20).