CN201868176U - Voice coil electromagnet - Google Patents
Voice coil electromagnet Download PDFInfo
- Publication number
- CN201868176U CN201868176U CN201020595173XU CN201020595173U CN201868176U CN 201868176 U CN201868176 U CN 201868176U CN 201020595173X U CN201020595173X U CN 201020595173XU CN 201020595173 U CN201020595173 U CN 201020595173U CN 201868176 U CN201868176 U CN 201868176U
- Authority
- CN
- China
- Prior art keywords
- conductive shell
- permanent magnet
- voice coil
- linear bearing
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model relates to a voice coil electromagnet which comprises a linear bearing, a magnetic-conductive shell, a permanent magnet, a fixed iron core, a guide push rod and a coil kit; the permanent magnet and the fixed iron core are arranged inside the magnetic-conductive shell; the axle centers of the magnetic-conductive shell, the permanent magnet and the fixed iron core correspond to one another; the permanent magnet is arranged between the magnetic-conductive shell and the fixed iron core; the tail end of the linear bearing penetrates the insides of the magnetic-conductive shell, the permanent magnet and the fixed iron core; the coil kit is fixed on the guide push rod; and the guide push rod penetrates the inside of the linear bearing. The voice coil electromagnet has the advantages of high reaction speed, low working noise, large working stroke and uniform force, and in addition, the moving direction is controlled through conversion of the energized positive and negative poles of the coil, and the program control is conveniently realized.
Description
Technical field
The utility model relates to a kind of electromagnet, especially a kind of voice coil loudspeaker voice coil electromagnet.
Background technology
At present, general electromagnet generally all is to have only a direction of motion after the energising, needs after the outage to be returned to initial position by external force, can't control another direction of motion by the signal of telecommunication, causes the reaction time long; Because the strength of the whole moving process of electromagnet alters a great deal, therefore in the electromagnet moving process, can produce very big sound, it moves strength and can culminate when electromagnet moves to the other end by an end, and produced simultaneously impulsive sound also is maximum, also can shorten the useful life of electromagnet.
The utility model content
At the weak point that exists in the above-mentioned technology, the utility model provides a kind of can control its operative orientation, moves and to balance in power and a kind of voice coil loudspeaker voice coil electromagnet that noise is low.
For achieving the above object, the utility model provides a kind of voice coil loudspeaker voice coil electromagnet, constitute by linear bearing, magnetic conductive shell, permanent magnet, secured core, guiding push rod and coil block, described permanent magnet and described secured core are arranged on the inside of described magnetic conductive shell, the end of described linear bearing is through the inside of described magnetic conductive shell, described permanent magnet and described secured core, described coil block is fixed on the described guiding push rod, and described guiding push rod is through the inside of described linear bearing.
The front end of described linear bearing is fastened on the top of described magnetic conductive shell.
The axle center of described magnetic conductive shell, described permanent magnet and described secured core is corresponding.
Described permanent magnet is arranged between described magnetic conductive shell and the described secured core.
Compared with prior art, the utlity model has following advantage:
The utility model provides a kind of voice coil loudspeaker voice coil electromagnet, constitute by linear bearing, magnetic conductive shell, permanent magnet, secured core, guiding push rod and coil block, permanent magnet and secured core are arranged on the inside of magnetic conductive shell, the axle center of magnetic conductive shell, permanent magnet and secured core is corresponding, permanent magnet is arranged between magnetic conductive shell and the secured core, the end of linear bearing is through the inside of magnetic conductive shell, permanent magnet and secured core, coil block is fixed on the guiding push rod, and the guiding push rod is through the inside of linear bearing.The utility model reaction speed is fast, and operating noise is little, and impulse stroke is big, and it is even to form strength, and moving direction is convenient to realize program control by coil electricity both positive and negative polarity conversion and control.
Description of drawings
Fig. 1 is a stereogram of the present utility model;
Fig. 2 is the exploded view of Fig. 1;
Fig. 3 is positive electricity suction condition figure of the present utility model;
Fig. 4 is negative electricity return of the present utility model state diagram.
The main element symbol description is as follows:
1 linear bearing, 2 magnetic conductive shells
3 permanent magnets, 4 secured cores
5 guiding push rods, 6 coil blocks
Embodiment
For clearer statement the utility model, the utility model will be further described below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, the utility model provides a kind of voice coil loudspeaker voice coil electromagnet, is made of linear bearing 1, magnetic conductive shell 2, permanent magnet 3, secured core 4, guiding push rod 5 and coil block 6.Wherein, permanent magnet 3 and secured core 4 are arranged on the inside of magnetic conductive shell 2, and the axle center of magnetic conductive shell 2, permanent magnet 3 and secured core 4 is corresponding, and permanent magnet 3 is arranged between magnetic conductive shell 2 and the secured core 4.The end of linear bearing 1 is through the inside of magnetic conductive shell 2, permanent magnet 3 and secured core 4, and the front end of linear bearing 1 is fastened on the top of magnetic conductive shell.Coil block 6 is fixed on the guiding push rod 5, and guiding push rod 5 is through the inside of linear bearing 1.Because coil block is fixed on the guiding push rod, and this guiding push rod is placed in the linear bearing that is penetrated with magnetic conductive shell, the push rod that therefore leads can drive coil block and slide in magnetic conductive shell.
The utility model is placed a permanent magnet between magnetic conductive shell and secured core, make electromagnet have a permanent-magnetic field, and the guiding push rod that is fixed with coil block is placed in the linear bearing that is penetrated with magnetic conductive shell.Behind the direct current of coil block input different directions, and coil block produces the magnetic field and the former magnetic field generation relativity of different directions, causes the guiding push rod to be moved.
More than disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection range of the present utility model.
Claims (4)
1. voice coil loudspeaker voice coil electromagnet, constitute by linear bearing, magnetic conductive shell, permanent magnet, secured core, guiding push rod and coil block, it is characterized in that, described permanent magnet and described secured core are arranged on the inside of described magnetic conductive shell, the end of described linear bearing is through the inside of described magnetic conductive shell, described permanent magnet and described secured core, described coil block is fixed on the described guiding push rod, and described guiding push rod is through the inside of described linear bearing.
2. a kind of voice coil loudspeaker voice coil electromagnet as claimed in claim 1 is characterized in that the front end of described linear bearing is fastened on the top of described magnetic conductive shell.
3. a kind of voice coil loudspeaker voice coil electromagnet as claimed in claim 1 is characterized in that the axle center of described magnetic conductive shell, described permanent magnet and described secured core is corresponding.
4. as claim 1 or 3 described a kind of voice coil loudspeaker voice coil electromagnet, it is characterized in that described permanent magnet is arranged between described magnetic conductive shell and the described secured core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020595173XU CN201868176U (en) | 2010-11-05 | 2010-11-05 | Voice coil electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020595173XU CN201868176U (en) | 2010-11-05 | 2010-11-05 | Voice coil electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201868176U true CN201868176U (en) | 2011-06-15 |
Family
ID=44139325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020595173XU Expired - Fee Related CN201868176U (en) | 2010-11-05 | 2010-11-05 | Voice coil electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201868176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087905A (en) * | 2010-11-05 | 2011-06-08 | 深圳市亚欣电器制造有限公司 | Voice coil electromagnet |
| CN108183593A (en) * | 2017-11-30 | 2018-06-19 | 沈阳工业大学 | uniform parallel magnetic field type voice coil motor |
-
2010
- 2010-11-05 CN CN201020595173XU patent/CN201868176U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102087905A (en) * | 2010-11-05 | 2011-06-08 | 深圳市亚欣电器制造有限公司 | Voice coil electromagnet |
| CN108183593A (en) * | 2017-11-30 | 2018-06-19 | 沈阳工业大学 | uniform parallel magnetic field type voice coil motor |
| CN108183593B (en) * | 2017-11-30 | 2020-10-16 | 沈阳工业大学 | Uniform parallel magnetic field type voice coil motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20131105 |