CN200976538Y - Electric vibration driving device - Google Patents
Electric vibration driving device Download PDFInfo
- Publication number
- CN200976538Y CN200976538Y CN 200620160628 CN200620160628U CN200976538Y CN 200976538 Y CN200976538 Y CN 200976538Y CN 200620160628 CN200620160628 CN 200620160628 CN 200620160628 U CN200620160628 U CN 200620160628U CN 200976538 Y CN200976538 Y CN 200976538Y
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- CN
- China
- Prior art keywords
- yoke
- permanent magnet
- moving
- gap
- coil
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- Expired - Fee Related
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- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model relates to an electric vibration drive device, belonging to the drive device of vibration experimental device, which comprises a yoke iron, a permanent magnet and a moving coil component. The utility model is characterized in that: the yoke iron comprises an internal yoke iron and two external yoke irons in both sides. Two clearances are existed between the internal yoke iron and the external yoke irons, wherein the permanent magnet is uniformly positioned in the wall of the external yoke irons of the clearance, and the driving coil of the moving coil component is arranged in the clearance between the permanent magnet and the internal yoke iron. By using the permanent magnet as the direct current magnetic field, the electric vibration drive device is of small volume and light weight. Under the condition of achieving the objective of large displacement, the nonlinearity of the magnetic field is small, and the work interference can be controlled under 0.06 percent, and the travel range of the moving coil is limited in 0 to 1000 millimeter. The electric vibration drive device can widely be used in the industrial field and the skylab that need vibration place with small volume and large displacement.
Description
Technical field
The utility model belongs to the drive unit of vibration testing device, is specifically related to a kind of drive unit of electrodynamic type vibration experiment table.
Background technology
The exciting force that electrodynamic vibration generator produces is to pass to high alternating current results of interaction by stationary magnetic field and drive coil.Existing electric vibrating device all adopts magnet exciting coil or permanent magnet that magnetic field is provided, because magnet exciting coil generates heat easily, volume is big, but is difficult to be applicable to the small size vibrating device that requires thrust little.
Existing small-sized electric vibrating device is to adopt permanent magnet and magnetic conductor in conjunction with balanced magnetic field is provided, but air gap height is limited at the air gap place, in big displacement, can not experience uniform magnetic field to drive coil, make that the magnetic field of drive coil movement locus is non-linear big, can't satisfy the requirement of new equipment.
The utility model content
The purpose of this utility model provide a kind ofly have the uniform magnetic field loop, volume is little, power output is big, lightweight electrodynamic type oscillation drive, the requirement of magnetic field intensity can't be satisfied in the magnetic field that has solved existing small-sized electric vibration testing device, the uneven defective in magnetic field.
For achieving the above object, the technical solution adopted in the utility model is as follows;
A kind of electrodynamic type oscillation drive, comprise yoke, permanent magnet and moving-coil assembly, it is characterized in that described yoke is made up of two outer yokes of interior yoke and its both sides, have two gaps between interior yoke and outer yoke, permanent magnet blocks is evenly pasted and is placed on the outer yoke wall in gap, and the drive coil of moving-coil assembly is positioned between space between permanent magnet and yoke.
Described two outer yokes are " recessed " type, after its inner concave and interior yoke are fixing, and the square gap of formation between interior yoke and outer yoke.
Described permanent magnet is the rectangular build permanent magnet of polylith, and the rectangular build permanent magnet of polylith evenly pastes to be put on the outer yoke wall that is distributed in the gap.
The skeleton of moving-coil assembly is a frame type, yoke outer rim in being sleeved on, and drive coil is arranged on the moving-coil assembly skeleton between permanent magnet and interior yoke.
Described two gaps are long and narrow gap, and the drive coil of moving-coil assembly moves on the length direction in this gap.
This drive unit adopts three square yokes composition magnetic gap that is fixed together, for satisfying the big displacement of driven unit, this magnetic gap is the long and narrow gaps of two ends by the yoke sealing, the clearance wall that square permanent magnetism is being shown consideration for outer yoke evenly is provided with, general square permanent magnet is adjacent to setting, forms uniform magnetic field, and the drive coil skeleton is a yoke outer rim in frame type is sleeved on, the drive coil skeleton passes two magnetic gap, and passes fixed drive coil on the both sides drive coil skeleton of magnetic gap.
Used permanent magnet preferably selects for use high magnetic characteristics, hard magnetic material neodymium iron boron as permanent magnetic material, can access very strong magnetic flux density like this in the loop.Permanent magnet is designed to the cuboid of polylith, is evenly distributed on the both sides of drive coil, can form uniform field circuit.
The beneficial effects of the utility model are, this electrodynamic type oscillation drive adopts permanent magnet as D.C. magnetic field, volume is little, in light weight, satisfying under the situation of big displacement, magnetic field non-linear little, anti-interference can effectively being suppressed at below 0.06% of working, the moving-coil stroke range can realize 0～1000mm.This electrodynamic type oscillation drive can be widely used in industrial circle and space laboratory device etc. needs the vibration place that volume is little, displacement is big.
Description of drawings
The invention will be further elaborated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the cross-sectional view of the utility model embodiment;
Fig. 2 is that the A of Fig. 1 is to the cut-away section topology view;
Fig. 3 is that the B-B of Fig. 1 is to the cross-section structure enlarged diagram.
Embodiment
As figure, this electrodynamic type oscillation drive is made of yoke, permanent magnet 4, moving-coil assembly, yoke is made up of the interior yoke 2 of block length side's bodily form and two outer yokes 1 and 3 of its both sides, two outer yokes are " recessed " type, the one side of its cuboid is provided with the indent of rectangular build, after inner concave and interior yoke 2 are fixing, two long and narrow square gaps 5 of formation between interior yoke and outer yoke.4 one of the cuboid permanent magnets of the NdFeB material of polylith are close on the outer yoke wall that fast even subsides are placed on two long and narrow gaps, form uniform magnetic field.Outside on the yoke wall, the two ends of two outer yokes and interior yoke are by bolt by screw for permanent magnet.The skeleton 7 of moving-coil assembly is a frame type, yoke outer rim in being sleeved on, drive coil 6 is arranged on the moving-coil assembly skeleton between permanent magnet and interior yoke, and drive coil is positioned between space between permanent magnet and yoke, and drive coil can move on the length direction in this long and narrow gap.
Claims (5)
1. electrodynamic type oscillation drive, comprise yoke, permanent magnet and moving-coil assembly, it is characterized in that described yoke is made up of two outer yokes of interior yoke and its both sides, have two gaps between interior yoke and outer yoke, permanent magnet blocks is evenly pasted and is placed on the outer yoke wall in gap, and the drive coil of moving-coil assembly is positioned between space between permanent magnet and yoke.
2. electrodynamic type oscillation drive according to claim 1 is characterized in that described two outer yokes are " recessed " type, after its inner concave and interior yoke are fixing, and the square gap of formation between interior yoke and outer yoke.
3. electrodynamic type oscillation drive according to claim 1 is characterized in that described permanent magnet is the rectangular build permanent magnet of polylith, and the rectangular build permanent magnet of polylith evenly pastes to be put on the outer yoke wall that is distributed in the gap.
4. electrodynamic type oscillation drive according to claim 1 is characterized in that the skeleton of moving-coil assembly is a frame type, yoke outer rim in being sleeved on, and drive coil is arranged on the moving-coil assembly skeleton between permanent magnet and interior yoke.
5. electrodynamic type oscillation drive according to claim 1 is characterized in that described two gaps are long and narrow gap, and the drive coil of moving-coil assembly moves on the length direction in this gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160628 CN200976538Y (en) | 2006-11-17 | 2006-11-17 | Electric vibration driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160628 CN200976538Y (en) | 2006-11-17 | 2006-11-17 | Electric vibration driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200976538Y true CN200976538Y (en) | 2007-11-14 |
Family
ID=38902818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620160628 Expired - Fee Related CN200976538Y (en) | 2006-11-17 | 2006-11-17 | Electric vibration driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200976538Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594082A (en) * | 2012-02-20 | 2012-07-18 | 何熊熊 | Vibration power generation device |
| CN106597267A (en) * | 2016-11-15 | 2017-04-26 | 西安交通大学 | Uniform magnetic field generation and control system and method for vacuum arc experiment |
-
2006
- 2006-11-17 CN CN 200620160628 patent/CN200976538Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594082A (en) * | 2012-02-20 | 2012-07-18 | 何熊熊 | Vibration power generation device |
| CN102594082B (en) * | 2012-02-20 | 2014-02-26 | 何熊熊 | Vibration power generation device |
| CN106597267A (en) * | 2016-11-15 | 2017-04-26 | 西安交通大学 | Uniform magnetic field generation and control system and method for vacuum arc experiment |
| CN106597267B (en) * | 2016-11-15 | 2019-02-05 | 西安交通大学 | A kind of uniform magnetic field generation and regulator control system and method for vacuum arc experiment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Electric vibration driving device Effective date of registration: 20110303 Granted publication date: 20071114 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2011990000063 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120331 Granted publication date: 20071114 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2011990000063 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20131117 |