CN108574895A - A kind of no magnetic leakage receiver and preparation method thereof - Google Patents
A kind of no magnetic leakage receiver and preparation method thereof Download PDFInfo
- Publication number
- CN108574895A CN108574895A CN201710146868.6A CN201710146868A CN108574895A CN 108574895 A CN108574895 A CN 108574895A CN 201710146868 A CN201710146868 A CN 201710146868A CN 108574895 A CN108574895 A CN 108574895A
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- China
- Prior art keywords
- magnet
- coil
- high magnetic
- box body
- lower box
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The present invention discloses a kind of no magnetic leakage receiver and preparation method thereof, no magnetic leakage receiver includes motor sub-assembly, motor sub-assembly includes coil, high magnetic conduction filling member, armature, high magnetic conductive board, first magnet and the second magnet, coil is equipped with channel, the channel of coil and the interior bottom of lower box body are vertically arranged, one surface of the first magnet and the inner bottom surface of lower box body are fitted and connected, high magnetic conductive board is covered in the open top of lower box body, the surface of high magnetic conductive board and a surface of the second magnet are fitted and connected, second magnet the first magnet of direction, one end of armature is connect with coil by high magnetic conduction filling member, the other end of armature is located in the gap that the first magnet and the second magnet are formed, high magnetic conduction filling member is filled in the channel of coil, between coil and armature and between coil and the interior bottom of shell, tight between coil and high magnetic conduction filling member.The present invention is high, and magnetic conduction filling member is filled in inside coil channel, makes to be fully magnetised without air layer, coil in coil, no magnetic dispersion.
Description
Technical field
The invention belongs to receiver fields, are more particularly to a kind of motor of novel efficient no magnetic leakage receiver.
Background technology
The motor of all balanced armature formula receivers is since armature is in coil channel internal vibration on existing market so that line
Circle and armature certainly exist air layer.And the presence of this air layer, cause the magnetic flux that coil generates not completely by armature, and
It is a part of magnetic leakage in air, causes the decline of receiver conversion efficiency.
Invention content
The object of the present invention is to provide a kind of motors of the higher no magnetic leakage receiver of conversion efficiency.
According to an aspect of the invention, there is provided a kind of no magnetic leakage receiver comprising shell and be located at the shell
Motor sub-assembly, diaphragm unit in the cavity of body and connecting rod, the motor sub-assembly and the diaphragm unit are connected by connecting rod
It connects,
The shell is formed by connecting by upper cartridge body and lower box body make-up,
The motor sub-assembly includes coil, high magnetic conduction filling member, armature, high magnetic conductive board, the first magnet and the second magnet, institute
It states coil and is equipped with channel, the channel of the coil and the interior bottom of the lower box body are vertically arranged, a table of first magnet
Face and the inner bottom surface of the lower box body are fitted and connected, and the high magnetic conductive board is covered in the open top of the lower box body, described
The surface of high magnetic conductive board and a surface of second magnet are fitted and connected, and second magnet is towards first magnet, institute
The one end for stating armature is connect with the coil by the high magnetic conduction filling member, and the other end of the armature is located at first magnetic
In the gap that iron and the second magnet are formed, the armature does not contact with first magnet and second magnet, the height
Magnetic conduction filling member is filled in the channel of the coil, between the coil and the armature and the coil and the shell
Interior bottom between, tight between the coil and the high magnetic conduction filling member.
In some embodiments, the cross section of the high magnetic conduction filling member is I-shaped.
In some embodiments, the coil and second magnet are located at two of bottom in the lower box body
End.
In some embodiments, the armature is connect with the high magnetic conduction filling member by Laser Welding or resistance welding,
The high magnetic conduction filling member is connect with the coil by Laser Welding or resistance welding, the high magnetic conduction filling member and the shell
Interior bottom pass through Laser Welding or electric resistance welding connection.
In some embodiments, it is equipped with for the company of placement between the high magnetic conductive board and the end sidewalls of the lower box body
The gap of extension bar.
In some embodiments, the diaphragm unit includes the film frame, diaphragm and vibration plate, the film frame and institute
The madial wall connection of upper cartridge body is stated, the film frame is equipped with endoporus, and the diaphragm is pasted with the film frame to be connected and cover institute
The endoporus of film frame is stated, the vibration plate is pasted with the diaphragm to be connected, and the middle part of the vibration plate is equipped with protrusion.
In some embodiments, the armature is located at one in first magnet and second magnet formation gap
End is equipped with link block, and one end of the connecting rod is connect with the vibration plate, the other end of the connecting rod and the link block
Connection.
A kind of production method of no magnetic leakage receiver, includes the following steps：
The high magnetic conduction filling member is filled in the channel of the coil；
By with high magnetic conduction filling member the coil and first magnet be individually fixed in the interior bottom of the lower box body
The first position and the second position in portion, the channel of the coil are vertically arranged with the interior bottom of the lower box body；
One end of the armature is connect with the high magnetic conduction filling member, the other end of the armature is placed on described
The top of one magnet, the armature are not contacted with first magnet；
One surface of the second magnet is connect with a surface soldered of the high magnetic conductive board, second magnet will be welded with
High magnetic conductive board tip upside down in the open top of the lower box body, and make the end sidewalls of the high magnetic conductive board and the lower box body
Between there are the gaps for accommodating the connecting rod；
One end of the connecting rod is connect with the diaphragm unit, and by the outside of the diaphragm unit and the upper box
The madial wall of body connects；
Upper cartridge body with the diaphragm unit is tipped upside down on the lower box body, the other end and the institute of the connecting rod are made
After stating link block connection, the upper cartridge body and the lower box body are welded to connect, receiver is made.
The present invention is high, and magnetic conduction filling member is filled in inside coil channel, makes do not have air layer in coil so that coil can
It is fully magnetised, no magnetic dispersion, so that the receiver motor has high conversion efficiency, increases the acoustic pressure of receiver
Grade.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of no magnetic leakage receiver of an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the motor of no magnetic leakage receiver of an embodiment of the present invention.
Specific implementation mode
Fig. 1 schematically show one embodiment of the present invention without magnetic leakage receiver.As shown in Figure 1, this is without magnetic
Leakage receiver includes shell and motor sub-assembly, diaphragm unit and connecting rod in the cavity of shell, motor sub-assembly and film
Piece component is connected by connecting rod 4.
Shell is formed by connecting by upper cartridge body 11 and 12 make-up of lower box body.
Diaphragm unit includes film frame 21, diaphragm 22 and vibration plate 23.Film frame 21 is equipped with endoporus.Diaphragm 22 and film frame 21
Paste the endoporus for connecting and covering film frame 21.Vibration plate 23 is pasted with diaphragm 22 to be connected.The middle part of vibration plate 23 is equipped with protrusion.It can increase
The stiffness for adding vibration plate 23 improves the local frequency of receiver.Portion of the diaphragm 22 between vibration plate 23 and the endoporus of film frame 21
It is divided into convex 221.Space is provided for the vibration of vibration plate 23, ensures that vibration plate 23 has certain amplitude.Vibration plate 23 and film frame
21 are located at the same side of diaphragm 22.In this embodiment, vibration plate 23 is respectively positioned on the top of diaphragm 22 with film frame 21.Make vibration plate 23
It can freely up and down shake, while diaphragm 22 being made to play the role of support to vibration plate 23.The outer edge of diaphragm unit and shell
Madial wall connects.In particular the madial wall of the outer edge and shell of film frame 21 pastes connection.Diaphragm unit is by the sky of shell
Chamber is divided into ante-chamber and back cavity.Sound mouth 112 is offered on the side wall of the shell of ante-chamber.Motor sub-assembly is located in back cavity.
As depicted in figs. 1 and 2, motor sub-assembly includes coil 31, high magnetic conduction filling member 32, armature 33, high magnetic conductive board 34,
One magnet 35 and the second magnet 36.Coil 31 is equipped with channel.In this embodiment, coil 31 is cylindroid pipe body shape, coil 31
Interior channel is Elliptic Cylinder shape.The channel of coil 31 and the interior bottom of lower box body 12 are vertically arranged.One table of the first magnet 35
Face and the inner bottom surface of lower box body 12 are fitted and connected.Specifically, the first magnet 35 is connected with the interior bottom laser welding of lower box body 12.
Coil 31 and the second magnet 36 are located at the both ends of bottom in lower box body 12.High magnetic conductive board 34 is made of permeability magnetic material.Height is led
Magnetic sheet 34 is covered in the open top of lower box body 12.It is equipped between high magnetic conductive board 34 and the end sidewalls of lower box body 12 for putting
Set the gap of connecting rod.Connecting rod does not contact with high magnetic conductive board 34 and lower box body 12.The surface of high magnetic conductive board 34 and the second magnetic
One surface of iron 36 is fitted and connected, and specifically, is connected by laser welding.Second magnet 36 is towards the first magnet 35, the first magnetic
Gap is formed between iron 35 and the second magnet 36.One end of armature 33 is connect with coil 31 by high magnetic conduction filling member 32.Specifically
Ground, armature 33 are connect with high magnetic conduction filling member 32 by Laser Welding or resistance welding, and high magnetic conduction filling member 32 passes through with coil 31
Laser Welding or resistance welding connection.The other end of armature 33 is located in the gap that the first magnet 35 and the second magnet 36 are formed.For
The both ends of armature 33 are made to place in place, armature 33 can be bent.Armature 33 and the first magnet 35 and second
Magnet 36 does not contact.High magnetic conduction filling member 32 is also made of high permeability material.In this embodiment, high magnetic conductive board 34 with
It is to have preferable magnetic conduction effect made of 1j50 magnetically soft alloys that high magnetic conduction filling member 32, which is the domestic trade mark,.High magnetic conduction is filled out
Part 32 is filled to be filled in the channel of coil 31, between coil 31 and armature 33 and between coil 31 and the interior bottom of shell.For
The coil 31 and high magnetic conduction filling member 32 is set to be fixed in lower box body 12, high magnetic conduction filling member 32 and the interior bottom of shell are logical
Cross Laser Welding or electric resistance welding connection.In order to obtain so that high magnetic conduction filling member 32 be completely filled in the channel of coil 31, coil
Between 31 and armature 33 and between coil 31 and the interior bottom of shell, the cross section of high magnetic conduction filling member 32 is I-shaped.It is existing
Have in technology, since armature 33 is needed in 31 channel internal vibration of coil, so must armature 33 and 31 interchannel of coil be bound to
Promising free vibration slot milling, leads to magnetic dispersion.Armature 33 is not in 31 channel internal vibration of coil in the present invention, and coil 31
The tight between high magnetic conduction filling member 32,31 channel of coil are filled by Alperm completely, and when work is fully magnetised,
There is no magnetic dispersion.Bottom the first magnetic loop of composition of high magnetic conduction filling member 32, armature 33, the second magnet 36 and shell, high magnetic conduction
Bottom the second magnetic loop of composition of filling member 32, armature 33, the first magnet 35, high magnetic conductive board 34 and shell.Armature 33 by this two
The effect of a magnetic loop is attracted and of reciprocating vibration by upper and lower magnet.After coil 31 is powered, by high magnetic conduction filling member 32 to armature
33 are magnetized, and the armature 33 after magnetization does lower round-trip vibration jointly the first magnet 35 and the second magnet 36.
A kind of production method of no magnetic leakage receiver, includes the following steps：High magnetic conduction filling member 32 is filled in coil 31
Channel in.By with high magnetic conduction filling member 32 coil 31 and first magnet 35 be individually fixed in the interior bottom of lower box body 12
First position and the second position, the channel of coil 31 are vertically arranged with the interior bottom of lower box body 12.By one end of armature 33 and height
Magnetic conduction filling member 32 connects, and the other end of armature 33 is placed on to the top of the first magnet 35, armature 33 and the first magnet 35 are not
Contact.One surface of the second magnet 36 is connect with a surface soldered of high magnetic conductive board 34, the height of the second magnet 36 will be welded with
Magnetic conductive board 34 tips upside down in the open top of lower box body 12, and make between high magnetic conductive board 34 and the end sidewalls of lower box body 12 there are
Accommodate the gap of connecting rod.One end of connecting rod is connect with diaphragm unit, and by the outside of diaphragm unit and upper cartridge body 11
Madial wall connects.Upper cartridge body 11 with diaphragm unit is tipped upside down on lower box body 12, the other end and link block of connecting rod are made
After 331 connections, upper cartridge body 11 and lower box body 12 are welded to connect, receiver is made.
In other embodiments, high 32 cross section of magnetic conduction filling member is T-type, and production method is：By coil 31 and first
Magnet 35 is individually fixed in the first position and the second position of the interior bottom of lower box body 12, channel and the lower box body 12 of coil 31
Interior bottom is vertically arranged.The straight bar part for the high magnetic conduction filling member 32 that cross section is T fonts is put into the channel of coil 31, and
The end that high magnetic conduction is filled is fixedly connected with the bottom of lower box body 12.One end of armature 33 and high magnetic conduction filling member 32 are connected
It connects, the other end of armature 33 is placed on to the top of the first magnet 35, armature 33 is not contacted with the first magnet 35.By the second magnet
36 surface is connect with a surface soldered of high magnetic conductive board 34, and the high magnetic conductive board 34 for being welded with the second magnet 36 is tipped upside down on down
In the open top of box body 12, and make between high magnetic conductive board 34 and the end sidewalls of lower box body 12 there are accommodate connecting rod sky
Gap.One end of connecting rod is connect with diaphragm unit, and the outside of diaphragm unit is connect with the madial wall of upper cartridge body 11.By band
There is the upper cartridge body 11 of diaphragm unit to tip upside down on lower box body 12, after so that the other end of connecting rod is connect with link block 331, by upper box
Body 11 is welded to connect with lower box body 12, receiver is made.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, it is not taking off
Under the premise of conceiving from the invention, various modifications and improvements can be made, these are all within the scope of protection of the present invention.
Claims (8)
1. a kind of no magnetic leakage receiver comprising shell and motor sub-assembly, diaphragm unit in the cavity of the shell
And connecting rod, the motor sub-assembly are connected with the diaphragm unit by connecting rod, which is characterized in that
The shell is formed by connecting by upper cartridge body and lower box body make-up,
The motor sub-assembly includes coil, high magnetic conduction filling member, armature, high magnetic conductive board, the first magnet and the second magnet, the line
Circle is equipped with channel, and the channel of the coil and the interior bottom of the lower box body be vertically arranged, a surface of first magnet and
The inner bottom surface of the lower box body is fitted and connected, and the high magnetic conductive board is covered in the open top of the lower box body, and the height is led
The surface of magnetic sheet and a surface of second magnet are fitted and connected, and second magnet is towards first magnet, the electricity
One end of pivot is connect with the coil by the high magnetic conduction filling member, the other end of the armature be located at first magnet and
In the gap that second magnet is formed, the armature does not contact with first magnet and second magnet, the high magnetic conduction
Filling member is filled in the channel of the coil, between the coil and the armature and the coil and the shell it is interior
Between bottom, tight between the coil and the high magnetic conduction filling member.
2. no magnetic leakage receiver according to claim 1, which is characterized in that the cross section of the high magnetic conduction filling member is work
Font.
3. no magnetic leakage receiver according to claim 1, which is characterized in that the coil and second magnet distinguish position
Both ends in bottom in the lower box body.
4. no magnetic leakage receiver according to claim 1, which is characterized in that the armature is logical with the high magnetic conduction filling member
It crosses Laser Welding or resistance welding connection, the high magnetic conduction filling member is connect with the coil by Laser Welding or resistance welding, institute
High magnetic conduction filling member is stated to connect by Laser Welding or electric resistance welding with the interior bottom of the shell.
5. no magnetic leakage receiver according to claim 1, which is characterized in that the end of the high magnetic conductive board and the lower box body
The gap for placing connecting rod is equipped between portion's side wall.
6. no magnetic leakage receiver according to claim 1, which is characterized in that the diaphragm unit include the film frame,
Diaphragm and vibration plate, the film frame are connect with the madial wall of the upper cartridge body, and the film frame is equipped with endoporus, the diaphragm and institute
It states film frame and pastes the endoporus for connecting and covering the film frame, the vibration plate is pasted with the diaphragm to be connected, the vibration plate
Middle part is equipped with protrusion.
7. no magnetic leakage receiver according to claim 6, which is characterized in that the armature is located at first magnet and institute
It states the one end that the second magnet is formed in gap and is equipped with link block, one end of the connecting rod is connect with the vibration plate, the company
The other end of extension bar is connect with the link block.
8. a kind of such as production method of the claim 1-7 any one of them without magnetic leakage receiver, which is characterized in that including following
Step：
The high magnetic conduction filling member is filled in the channel of the coil；
By with high magnetic conduction filling member the coil and first magnet be individually fixed in the interior bottom of the lower box body
First position and the second position, the channel of the coil are vertically arranged with the interior bottom of the lower box body；
One end of the armature is connect with the high magnetic conduction filling member, the other end of the armature is placed on first magnetic
The top of iron, the armature are not contacted with first magnet；
One surface of the second magnet is connect with a surface soldered of the high magnetic conductive board, the height of second magnet will be welded with
Magnetic conductive board tips upside down in the open top of the lower box body, and makes between the high magnetic conductive board and the end sidewalls of the lower box body
There are the gaps for accommodating the connecting rod；
One end of the connecting rod is connect with the diaphragm unit, and by the outside of the diaphragm unit and the upper cartridge body
Madial wall connects；
Upper cartridge body with the diaphragm unit is tipped upside down on the lower box body, the other end of the connecting rod and the company are made
After connecing block connection, the upper cartridge body and the lower box body are welded to connect, receiver is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146868.6A CN108574895B (en) | 2017-03-13 | 2017-03-13 | A kind of no magnetic leakage receiver and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146868.6A CN108574895B (en) | 2017-03-13 | 2017-03-13 | A kind of no magnetic leakage receiver and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108574895A true CN108574895A (en) | 2018-09-25 |
| CN108574895B CN108574895B (en) | 2019-11-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710146868.6A Active CN108574895B (en) | 2017-03-13 | 2017-03-13 | A kind of no magnetic leakage receiver and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108574895B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222818A (en) * | 2017-07-13 | 2017-09-29 | 楼氏Ipc（马来西亚）私人有限公司 | Acoustic-electric conversion equipment and audio frequency apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000074436A3 (en) * | 1999-06-01 | 2001-07-12 | Microtronic Nederland Bv | Mounting of the coil in an electroacoustic transducer |
| US6853735B2 (en) * | 2001-04-02 | 2005-02-08 | Star Micronics Co., Ltd. | Receiver and portable communication device |
| CN105979454A (en) * | 2016-07-27 | 2016-09-28 | 深圳倍声声学技术有限公司 | Moving iron horn |
-
2017
- 2017-03-13 CN CN201710146868.6A patent/CN108574895B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000074436A3 (en) * | 1999-06-01 | 2001-07-12 | Microtronic Nederland Bv | Mounting of the coil in an electroacoustic transducer |
| US6853735B2 (en) * | 2001-04-02 | 2005-02-08 | Star Micronics Co., Ltd. | Receiver and portable communication device |
| CN105979454A (en) * | 2016-07-27 | 2016-09-28 | 深圳倍声声学技术有限公司 | Moving iron horn |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222818A (en) * | 2017-07-13 | 2017-09-29 | 楼氏Ipc（马来西亚）私人有限公司 | Acoustic-electric conversion equipment and audio frequency apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108574895B (en) | 2019-11-29 |
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