CN210694349U

CN210694349U - Automobile horn magnetic assembly

Info

Publication number: CN210694349U
Application number: CN201922289128.5U
Authority: CN
Inventors: 罗明
Original assignee: Ningbo Newland Magnet Industry Corp Ltd
Current assignee: Ningbo Newland Magnet Industry Corp Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-06-05
Anticipated expiration: 2029-12-19

Abstract

A magnetic component of an automobile horn sequentially comprises a shell, tile-shaped magnetic steel and a core from outside to inside, wherein the shell is an integrally formed ring, a vertical line where the geometric center of the shell is located is a central axis, and a first bending part which is bent inwards is integrally formed at the bottom of the shell; the tile-shaped magnetic steels are a plurality of tile-shaped magnetic steels uniformly distributed along the circumferential direction of the inner wall of the shell, the outer walls of the tile-shaped magnetic steels are bonded with the inner wall of the shell, a gap exists between every two adjacent tile-shaped magnetic steels, and the magnetization direction of each magnetic steel is from the horizontal direction of the central shaft to the outer direction and is from N level to S level; the core is the annular, and the core outer wall bonds with tile type magnet steel inner wall, and there is the second portion of bending of outside core bottom, and first portion of bending and second remain certain clearance between the portion of bending, still are provided with the aluminium circle between shell and the core, this practicality changes the magnet steel into tile shape, has strengthened the magnetic field of voice coil loudspeaker voice coil gap department, but aluminium circle magnetic stabilization field uses the utility model discloses the loudspeaker audio of making is good, and power is little, can use on high-end car.

Description

Automobile horn magnetic assembly

Technical Field

The utility model relates to a sound product technical field especially relates to a car horn magnetic component.

Background

With the improvement of quality of life, the requirements of people on the tone quality of a horn on an automobile, especially a horn installed on a high-end automobile, are continuously improved, a magnetic component in the horn is an important component of the horn, the performance of the magnetic component influences the sound pressure frequency characteristic, the sound pressure level, the impedance curve, distortion, transient characteristics, loudspeaker parameters, the tone quality and the like of the horn, especially the bearing power and the service life of the horn are related, generally, the permanent magnet horn is provided with the disc magnetic steel, but the magnetic field of the disc magnetic steel is not high, the using amount is large, the sound effect with high quality cannot be achieved, meanwhile, the performance of the magnetic field is not stable, and the magnetic group needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the problem to prior art exists provides one kind can form strong magnetic field, improve the car horn magnetic component of loudspeaker tone quality.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a magnetic component of an automobile horn sequentially comprises a shell, tile-shaped magnetic steel and a core from outside to inside, wherein the shell is an integrally formed ring, a vertical line of a geometric center of the shell is a central axis, and a first bending part which is bent inwards is integrally formed at the bottom of the shell; the tile-shaped magnetic steel is a plurality of tile-shaped magnetic steels uniformly distributed along the circumferential direction of the inner wall of the shell, the outer wall of each tile-shaped magnetic steel is bonded with the inner wall of the shell through glue, a gap exists between every two adjacent tile-shaped magnetic steels, the magnetization directions of the tile-shaped magnetic steels are the same, and are from the horizontal direction of the central shaft to the outward direction and from the N level to the S level; the core is an integrally formed annular structure, the outer wall of the core is bonded with the inner wall of the tile-shaped magnetic steel through glue, a second bending portion which is bent outwards is integrally formed at the bottom of the core, and a gap is reserved between the first bending portion and the second bending portion.

Further, still be provided with the aluminium circle between shell and the core, aluminium circle outer wall bonds in the shell inner wall, be provided with on the core outer wall with aluminium circle high assorted inner groovy.

Furthermore, the outer wall of the core is provided with an anti-slip bulge matched with the height of the magnetic steel.

Furthermore, a plurality of mounting platforms are uniformly distributed on the outer wall of the shell, and mounting through holes are formed in the middle of each mounting platform.

Furthermore, the mounting tables are three in number, and the center of each mounting through hole is connected with the central shaft at an included angle of 120 degrees.

Further, the upper part of the inner wall of the core is an inward-inclined cambered surface.

Furthermore, the tile-shaped magnetic steel has six blocks;

further, the interval distance between the first bending part and the second bending part is 1 mm.

Further, the outer diameter of the housing is 35.6mm, the inner diameter of the core is 16.1mm, and the height of the magnetic assembly is 13.7 mm.

Further, tile type magnet steel adopts N50 neodymium iron boron material, shell and core all adopt A3 steel material.

Compared with the prior art, the utility model discloses car horn magnetic component changes the magnet steel into the tile shape, and a plurality of magnet steels are arranged around center pin equidistance interval, and the restraint through shell and core makes the magnet steel arrange and circularizes to the magnetizer through interior outer lane is with the leading-in voice coil loudspeaker voice coil gap department of the magnet steel of tile type, makes the magnetic field of voice coil loudspeaker voice coil gap department reach 1.29T, and this numerical value belongs to very high magnetic field in the loudspeaker the inside. Meanwhile, an aluminum ring is additionally arranged in the position of the voice coil, and the aluminum ring has the effects of finely adjusting the magnetic field, stabilizing the magnetic field and absorbing the influence of vibration waves of the voice coil on the magnetic assembly through the eddy current effect of aluminum when the loudspeaker works; the loudspeaker audio that uses this practical magnetic component to make is good, and power is little, can use on high-end car.

Drawings

Fig. 1 is a schematic perspective view of the magnetic assembly of the car horn in the overlooking direction.

Fig. 2 is a schematic perspective view of the magnetic assembly of the car horn according to the present invention.

Fig. 3 is a top view of the magnetic assembly of the car horn of the present invention.

Fig. 4 is a cross-sectional view of the magnetic assembly of the car horn of the present invention.

Fig. 5 is a perspective view of the housing of the present invention.

Fig. 6 is a perspective view of the cartridge of the present invention.

Fig. 7 is a cross-sectional view of the cartridge of the present invention.

Reference numerals: 1. a housing; 11. a central shaft; 12. a first bending portion; 13. an installation table; 131. mounting a through hole; 2. tile-shaped magnetic steel; 3. a core; 31. a second bending portion; 32. an inner groove; 33. anti-slip bumps; 34. an inwardly-inclined arc surface; 4. an aluminum ring;

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 7, an automobile horn magnetic assembly sequentially comprises a shell 1, tile-shaped magnetic steel 2 and a core 3 from outside to inside, wherein the shell 1 is an integrally formed ring, a vertical line of a geometric center of the shell 1 is a central axis 11, and a first bending part 12 which is bent inwards is integrally formed at the bottom of the shell 1; the tile-shaped magnetic steels 2 are a plurality of tile-shaped magnetic steels uniformly distributed along the circumferential direction of the inner wall of the shell 1, the outer walls of the tile-shaped magnetic steels 2 are bonded with the inner wall of the shell 1 through glue, a gap exists between every two adjacent tile-shaped magnetic steels 2, the magnetization directions of the tile-shaped magnetic steels 2 are the same, are in the horizontal direction from the central shaft 11 to the outer direction and are from N level to S level; in the embodiment, six tile-shaped magnetic steels 2 are provided; core 3 is integrated into one piece's annular structure, 3 outer walls of core and 2 inner walls of tile type magnet steel bond through glue, the top installation of 3 inner walls of tile type magnet steel 2 laminating core, 3 bottom integrated into one piece of core have the second portion of bending 31 outward, core 3 does not directly bond with shell 1, after shell 1 and core 3 through the bonding of tile type magnet steel 2 in the middle of between them, keep certain clearance between the portion of bending 31 of first portion of bending 12 and second, interval 1mm between the portion of bending 31 of first portion of bending 12 and the second in this embodiment.

Preferably, still be provided with aluminium circle 4 between shell 1 and the

core

3, 4 outer walls of aluminium circle are bonded at shell 1 inner wall, be provided with on the core 3 outer wall with 4 high assorted inner groovies 32 of aluminium circle, make to have certain clearance between core 3 and aluminium circle 4, aluminium circle 4's effect is that the effect of messenger's loudspeaker reach fine setting magnetic field, steady magnetic field, absorb the influence of the vibration wave of voice coil loudspeaker voice coil to magnetic component simultaneously through the vortex effect of aluminium when working.

Preferably, the outer wall of the core 3 is further provided with an anti-slip bulge 33 matched with the height of the magnetic steel, and the anti-slip bulge 33 is arranged above the inner groove 32 and used for limiting the tile-shaped magnetic steel 2 on the basis of bonding, so that the tile-shaped magnetic steel 2 is prevented from slipping off and the service life is prolonged.

Preferably, a plurality of mounting platforms 13 are uniformly distributed on the outer wall of the housing 1, a mounting through hole 131 is formed in the middle of each mounting platform 13, three mounting platforms 13 are shared in the embodiment, the center of each mounting through hole 131 is connected with the central axis 11 at an included angle of 120 °, and the mounting platforms 13 are used for being connected with other components in the loudspeaker.

Preferably, the upper portion of the inner wall of the core 3 is an inward-inclined arc surface 34, i.e. an arc surface inclined towards the central axis 11, so that the structure of the magnetic assembly is more fluid and reasonable.

Preferably, the tile-shaped magnetic steel 2 is made of N50 NdFeB material, and the shell 1 and the core 3 are made of A3 steel material.

Preferably, in the present embodiment, the outer diameter of the housing 1 is 35.6mm, the inner diameter of the core 3 is 16.1mm, and the height of the magnetic assembly is 13.7 mm; the magnetic field at the voice coil gap can reach 1.29T.

In the assembly process, the concentricity requirement is required to be paid attention to, and the shell, the core, the aluminum ring and each tile-shaped magnetic steel form a ring shape in a surrounding way, and the shell, the core, the aluminum ring and each tile-shaped magnetic steel are all concentric; the assembled magnetic assembly can be applied to a loudspeaker, so that the loudspeaker has good sound effect and low power.

Finally, it should be noted that: the above embodiments are merely illustrative of the technical solutions of the present invention, and not limitative thereof; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an automobile horn magnetic component which characterized in that: the steel pipe comprises a shell (1), tile-shaped magnetic steel (2) and a core (3) from outside to inside in sequence, wherein the shell (1) is an integrally formed circular ring, a vertical line in which the geometric center of the shell (1) is located is a central shaft (11), and a first bending part (12) which is bent inwards is integrally formed at the bottom of the shell (1); the tile-shaped magnetic steel (2) is a plurality of tile-shaped magnetic steels uniformly distributed along the circumferential direction of the inner wall of the shell (1), the outer wall of each tile-shaped magnetic steel (2) is bonded with the inner wall of the shell (1) through glue, a gap exists between every two adjacent tile-shaped magnetic steels (2), the magnetization directions of the tile-shaped magnetic steels (2) are the same, and are from N level to S level, and the magnetization directions of the tile-shaped magnetic steels are from the horizontal direction of the central shaft (11) to the outer direction; core (3) are integrated into one piece's annular structure, core (3) outer wall bonds through glue with tile type magnet steel (2) inner wall, core (3) bottom integrated into one piece has outside second bending portion (31) of buckling, it is gapped between first bending portion (12) and the second bending portion (31).

2. The magnetic assembly of the automobile horn is characterized in that an aluminum ring (4) is further arranged between the shell (1) and the core (3), the outer wall of the aluminum ring (4) is bonded on the inner wall of the shell (1), and an inner groove (32) matched with the aluminum ring (4) in height is formed in the outer wall of the core (3).

3. The magnetic assembly of a horn of a car according to claim 1, characterized in that the outer wall of the core (3) is provided with anti-slip projections (33) matching the height of the magnetic steel.

4. The magnetic assembly of the automobile horn according to claim 1, wherein a plurality of mounting platforms (13) are uniformly distributed on the outer wall of the shell (1), and a mounting through hole (131) is formed in the middle of each mounting platform (13).

5. The magnetic assembly of claim 4, wherein the number of the mounting platforms (13) is three, and the center of each mounting through hole (131) is 120 ° from the line connecting the center axis (11).

6. The magnetic assembly of a horn of a vehicle according to claim 1, wherein the upper portion of the inner wall of the core (3) is an inwardly inclined arc surface (34).

7. Automotive horn magnet assembly according to claim 1, characterized in that the tile magnet steel (2) has six pieces in total.

8. The automotive horn magnet assembly of claim 1, wherein the first and second bends (12, 31) are spaced apart by a distance of 1 mm.

9. Automotive horn magnet assembly according to claim 1, characterized in that the outer diameter of the housing (1) is 35.6mm, the inner diameter of the core (3) is 16.1mm and the height of the magnet assembly is 13.7 mm.

10. The magnetic assembly of a horn of a car according to claim 1, characterized in that the tile-shaped magnetic steel (2) is made of N50 ndfeb material, and the shell (1) and the core (3) are made of A3 steel material.