CN108668211B

CN108668211B - Non-magnetic leakage vertical coil receiver motor

Info

Publication number: CN108668211B
Application number: CN201710211988.XA
Authority: CN
Inventors: 阿兰斯拉力克
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-01
Filing date: 2017-04-01
Publication date: 2020-03-31
Anticipated expiration: 2037-04-01
Also published as: CN108668211A

Abstract

The invention discloses a magnetic leakage-free vertical coil telephone receiver motor. The technical scheme of the invention is as follows: a non-magnetic leakage vertical coil telephone receiver motor comprises a coil, a high-magnetizer filling piece, a high-magnetizer plate, an armature, a first magnet, a second magnet and a lower shell (made of high-magnetizer materials). The coil is provided with a channel, the channel of the coil is perpendicular to the inner bottom of the lower shell, and the high-permeability filler is filled in the channel of the coil and forms an I-shaped section. There is no gap between the coil and the high-permeability magnetic filling piece, so that there is no air layer in the coil, and the magnetic force lines generated by the coil are collected by the high-permeability magnetic filling piece without magnetic leakage.

Description

Non-magnetic leakage vertical coil receiver motor

Technical Field

The invention relates to the technical field of balanced armature type receivers, in particular to a receiver motor with a non-magnetic leakage vertical coil.

Background

The motor of the receiver on the existing market makes the coil and the armature have air layer inevitably because the armature vibrates in the coil channel. The existence of the air layer causes the magnetic flux generated by the coil not to completely pass through the armature, but a part of the magnetic flux leaks in the air, so that the transduction efficiency of the receiver is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention mainly aims to provide a non-magnetic leakage vertical coil receiver motor with good structural performance.

In order to achieve the purpose, the invention provides the following technical scheme: a magnetic leakage-free vertical coil telephone receiver motor comprises a coil, a high-magnetic-permeability filling piece, an armature, a high-magnetic-permeability plate, a first magnet, a second magnet and a lower shell (made of high-magnetic-permeability materials) assembly. The coil is provided with a channel, the channel of the coil is perpendicular to the inner bottom of the lower shell, and the high-permeability filler is filled in the channel of the coil and forms an I-shaped section. The surface of first magnet is connected with the interior bottom surface laminating of casing down, high magnetic conductive plate covers the surface of the top high magnetic conductive plate of casing and is connected with the laminating of a surface of second magnet down, the second magnet is towards first magnet, the one end of armature is connected through high magnetic conduction filling member with the coil, the other end of armature is arranged in the space that first magnet and second magnet formed, high magnetic conduction filling member fills in the passageway of coil, between coil and the armature and between the interior bottom of coil and casing, there is not the space between coil and the high magnetic conduction filling member. The high-permeability filling piece is filled in the coil channel, so that no air layer exists in the coil, and the high-permeability filling piece fully provides a passage for a magnetic field generated by the coil and has no magnetic leakage. The coil and the second magnet are respectively positioned at two ends of the bottom in the lower box body. The armature is connected with the high-permeability filling piece through laser welding or resistance welding, the high-permeability filling piece is connected with the coil through glue, and the high-permeability filling piece is connected with the inner bottom of the shell through laser welding or resistance welding.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is a cut-away view of embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of embodiment 2 of the present invention;

fig. 4 is a cut-away view of embodiment 2 of the present invention;

FIG. 5 is a schematic structural view of embodiment 3 of the present invention;

fig. 6 is a sectional view of embodiment 3 of the present invention.

Detailed Description

[ example 1 ]

The invention will be further explained with reference to the drawings.

Referring to fig. 1 and 2, the assembly of a vertical coil receiver motor without magnetic leakage comprises a coil 1, a high magnetic conductive filling member 2, an armature 3, a high magnetic conductive plate 6, a first magnet 5, a second magnet 7 and a lower box body 4. The coil 1 is provided with a passage. In this embodiment, the coil 1 is in the shape of an elliptical cylinder and the passage in the coil 1 is in the shape of an elliptical cylinder. The passage of the coil 1 is arranged perpendicular to the inner bottom of the lower case 4. One surface of the first magnet 5 is attached to the inner bottom surface of the lower case 4. Specifically, the first magnet 5 and the inner bottom of the lower case 4 are laser welded. The coil 1 and the second magnet 7 are respectively positioned at two ends of the bottom in the lower box body 4. The high magnetic conductive plate 6 is made of a magnetic conductive material. The high magnetic conductive plate 6 covers the top opening of the lower box body 4. The surface of the high magnetic conductive plate 6 is attached to a surface of the second magnet 7, specifically, by laser welding. The second magnet 7 faces the first magnet 5, and a gap is formed between the first magnet 5 and the second magnet 7. One end of the armature 3 is connected with the coil 1 through the high-permeability filler 2. Specifically, the armature 3 is connected with the high-permeability filling piece 2 through laser welding or resistance welding, and the high-permeability filling piece 2 is wound together with the coil 1 through the motor and connected through glue. The other end of the armature 3 is located in the gap formed by the first magnet 5 and the second magnet 7. The channels of the coil 1 are completely filled with the high-permeability filling pieces, and an optimal path is provided for the magnetic field generated by the coil during operation, and no magnetic leakage exists. The high-permeability filler 2, the armature 3, the second magnet 7 and the bottom of the lower box body 4 form a magnetic circuit, and the magnetized armature 3 vibrates back and forth under the combined action of the first magnet 5 and the second magnet 7. The vibration direction of the armature 3 is parallel to the passage direction of the coil 1.

[ example 2 ]

The invention will be further explained with reference to the drawings.

Referring to fig. 3 and 4, the motor assembly of the receiver motor without magnetic leakage and vertical coil comprises a slotted high-permeability lower box body 4, the lower part of the lower box body 4 comprises a bent part and a through hole which are formed by punching, and the bent part is combined with an armature 3 to form an electromagnetic circuit of the receiver motor. So that the armature can be magnetized under the action of the alternating signal and can generate reciprocating vibration under the action of the static magnetic flux. The high-permeability double-bending armature comprises a coil 1, a high-permeability double-bending armature 3, a high-permeability plate 6, a first magnet 5 and a second magnet 7. In this embodiment, the coil 1 is in the shape of an elliptical cylinder and the passage in the coil 1 is in the shape of an elliptical cylinder. The passage of the coil 1 is arranged perpendicular to the inner bottom of the lower case 4. One surface of the first magnet 5 is attached to the inner bottom surface of the lower case 4. Specifically, the first magnet 5 and the inner bottom of the lower case 4 are laser welded. The coil 1 and the second magnet 7 are respectively positioned at two ends of the bottom in the lower box body 4. The high magnetic conductive plate 6 is made of a magnetic conductive material. The high magnetic conductive plate 6 covers the top opening of the lower box body 4. The surface of the high magnetic conductive plate 6 is attached to the surface of the second magnet 7, specifically, by laser welding. The second magnet 7 faces the first magnet 5, and a gap is formed between the first magnet 5 and the second magnet 7. One end of the armature 3 passes through the slot of the lower housing and protrudes to the outside of the lower housing by about 1 mm. Specifically, the armature 3 is connected to the lower case 4 by laser welding or resistance welding, and the other end of the armature 3 is located in a gap formed by the first magnet 5 and the second magnet 7.

[ example 3 ]

The invention will be further explained with reference to the drawings.

Referring to fig. 5 and 6, the motor assembly of the receiver without magnetic leakage and with vertical coil comprises a slotted high-permeability lower box body 4, a through hole formed by punching is arranged at the lower part of the lower box body 4, and an inward bending part is arranged beside the through hole and is combined with an armature 3 to form an electromagnetic circuit of the receiver motor. So that the armature can be magnetized under the action of the alternating signal and can generate reciprocating vibration under the action of the static magnetic flux. The high-permeability double-bending armature comprises a coil 1, a high-permeability double-bending armature 3, a high-permeability plate 6, a first magnet 5 and a second magnet 7. In this embodiment, the coil 1 is in the shape of an elliptical cylinder and the passage in the coil 1 is in the shape of an elliptical cylinder. The passage of the coil 1 is arranged perpendicular to the inner bottom of the lower case 4. One surface of the first magnet 5 is attached to the inner bottom surface of the lower box 4. Specifically, the first magnet 5 and the inner bottom of the lower case 4 are laser welded. The coil 1 and the second magnet 7 are respectively positioned at two ends of the bottom in the lower box body 4. The high magnetic conductive plate 6 is made of a magnetic conductive material. The high magnetic conductive plate 6 covers the top opening of the lower box body 4. The surface of the high magnetic conductive plate 6 is attached to the surface of the second magnet 7, specifically, by laser welding. The second magnet 7 faces the first magnet 5, and a gap is formed between the first magnet 5 and the second magnet 7. Specifically, the armature 3 is connected to the lower case 4 by laser welding or resistance welding, and the other end of the armature 3 is located in a gap formed by the first magnet 5 and the second magnet 7.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. A non-magnetic leakage vertical coil telephone receiver motor comprises a coil, a high-permeability filler, an armature, a high-permeability plate, a first magnet, a second magnet and a lower shell, wherein the lower shell is made of a high-permeability material, the coil is provided with a channel, the channel of the coil is vertically arranged with the inner bottom of the lower shell, the high-permeability filler is filled in the coil channel and forms an I-shaped cross section, one surface of the first magnet is attached to the inner bottom of the lower shell, the high-permeability plate covers the top of the lower shell, the surface of the high-permeability plate is attached to one surface of the second magnet, the second magnet faces the first magnet, one end of the armature is connected with the coil through the high-permeability filler, the other end of the armature is positioned in a gap formed by the first magnet and the second magnet, the high-permeability filler is filled in the channel of the coil, between the coil and the armature and between the coil and the inner bottom of the shell, there is not the space between coil and the high magnetic conduction filling member, and the high magnetic conduction filling member is filled in the coil passageway, makes no air bed in the coil, and the high magnetic conduction filling member fully provides the route for the magnetic field that the coil produced, does not have the magnetism and leaks.

2. The vertical coil receiver motor without magnetic leakage of claim 1, wherein the cross section of the high magnetic conductive filler is i-shaped.

3. The non-magnetic-leakage vertical-coil receiver motor according to claim 1, wherein the coil and the second magnet are respectively located at two ends of the bottom inside the lower housing.

4. The non-magnetic-leakage vertical coil telephone receiver motor according to claim 1, wherein the armature is connected with the high magnetic conductive filler by laser welding or resistance welding, the high magnetic conductive filler is connected with the coil by glue, and the high magnetic conductive filler is connected with the inner bottom of the housing by laser welding or resistance welding.

5. The vertical coil receiver motor without magnetic leakage of claim 1, wherein the vibration direction of the armature is parallel to the channel direction of the coil.