CN206117473U - Radial permanent magnet coupling of high power density - Google Patents
Radial permanent magnet coupling of high power density Download PDFInfo
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- CN206117473U CN206117473U CN201621204885.8U CN201621204885U CN206117473U CN 206117473 U CN206117473 U CN 206117473U CN 201621204885 U CN201621204885 U CN 201621204885U CN 206117473 U CN206117473 U CN 206117473U
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- power density
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Abstract
The utility model relates to a coupler, concretely relates to radial permanent magnet coupling of high power density. This coupler includes outer base member, external diaphragm, outer magnet body, seals outward to be sealed in, inner magnet base member in and, and inner magnet and outer magnet body's quantity is 14 respectively, realizes power along the transmission of radial orientation through interact's between 14 interior outer magnet body magnetic force, and the opposite direction that magnetizes of double -phase adjacent magnet places external diaphragm between adjacent outer magnet body, and external diaphragm is outer magnet body 1, and typical material is copper, and adjacent inner magnet closely arranges, does not just place the baffle, external diaphragm's gross thickness, for the outer magnet body mean radius, 13.8% to 14.2% of department's girth. The utility model discloses the quantity of permanent magnet can be practiced thrift, the interelectrode invalid magnetic flux of adjacent magnetism is reduced to improved the power density that radial permanent magnet coupling can transmit, can on a large scale promote and use.
Description
Technical field：
The utility model is related to a kind of coupler, and in particular to a kind of high power density radial permanent magnet coupler.
Background technology：
Radial permanent magnet coupler is by the interaction force transmission power between permanent magnet so that input need not with output end
Contact can torsion pass.Radial permanent magnet coupler operation principle is simple, compact conformation, operating reliability are high, service life is longer,
Jing is widely used in the field of industrial production such as military project, chemical industry, oil, medicine, energy-conservation.Due to conventional radial permanent magnetic coupling
Middle adjacent magnets close-packed arrays, can cause the part magnetic induction line between adjacent magnets that closed-loop path is produced inside magnet, it is impossible to reach
To the purpose of transmission power.This part magnetic flux belongs to invalid magnetic flux, has had a strong impact on the work(that radial permanent magnet coupler can be transmitted
Rate density.So, it is very necessary to design a kind of high power density radial permanent magnet coupler.
Utility model content：
There are a large amount of invalid magnetic fluxs to solve conventional radial permanent magnetic coupling inside, so as to affect what device can be transmitted
Power density issue, the utility model is carried out on the basis of conventional radial permanent magnetic coupling to the structure arrangement of its permanent magnet
Improve, there is provided a kind of new radial permanent magnet coupler, the consumption of permanent magnet can be saved, reduce the invalid magnetic flux between adjacent pole
Amount, so as to improve the power density that radial permanent magnet coupler can be transmitted, can on a large scale promote and use.
The technical solution adopted in the utility model is：A kind of high power density radial permanent magnet coupler, the coupler includes
Outer matrix, external partition, outer magnet, outer encapsulating, interior encapsulating, the quantity of inner magnet and endobasal-body, inner magnet and outer magnet are respectively
14, power transmission radially, two adjacent magnetic are realized by the magnetic force of 14 interior outer magnet interphase interactions
The magnetizing direction of body conversely, external partition is placed between adjacent outer magnet, external partition is NULL, typical material is copper, it is adjacent in
Magnet close-packed arrays, and do not place dividing plate.
The gross thickness of described external partition（Dividing plate gross thickness=dividing plate quantity × each block board thickness）For outer magnet average half
The 13.8% to 14.2% of footpath { mean radius=1/2 (outer magnet external diameter+outer magnet internal diameter) } place's girth.
The beneficial effects of the utility model：The consumption of permanent magnet can be saved, the ineffective magnetic fluxes between adjacent pole are reduced, from
And the power density that radial permanent magnet coupler can be transmitted is improve, can on a large scale promote and use.
Description of the drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is that gained magnetic induction line distribution map is emulated to conventional radial permanent magnetic coupling；
Fig. 3 is the partial enlarged drawing of magnetic flux distributions situation between adjacent permanent magnet in Fig. 2；
Fig. 4 is to calculate the utility model radial permanent magnet coupler gained magnetic induction line distribution map using ANSY softwares；
Fig. 5 is the partial enlarged drawing of magnetic flux distributions situation between adjacent permanent magnet and its dividing plate in Fig. 4.
Specific embodiment：
With reference to each figure, a kind of high power density radial permanent magnet coupler.As shown in figure 1, radial permanent magnet coupler adjacent two
The magnetizing direction of magnet is conversely, input and output end are by the gravitation F between opposite pole1Repulsion F between like pole2It is real
The transmission of existing torque.This coupler increases on the basis of conventional radial permanent magnetic coupling structure is retained between adjacent outer magnet
External partition 20, the material of external partition 20 is NULL, and typical material is copper.The relative permeability of copper is relatively low, can play obstruction
The effect that a part of magnetic flux passes through, so as to reduce the invalid magnetic flux between adjacent outer magnet, increases the torque transmission capacity of device.But increase
The volume of permanent magnet can be reduced while dividing plate, that is, reduces the magnetic energy that device is included, can to a certain extent cause dress
The torque transmission capacity put is reduced, therefore dividing plate is fitted without between inner magnet, is closed in given permanent magnetic coupling inside/outside diameter size ratio
Under system, the width of rational external partition 20 is have selected, so as to reach highest torque transmission capacity, realize that the high power of coupler is close
Degree.
Using ANSYS the torque transmission capacity of traditional structure radial permanent magnet coupler and the radial permanent magnet coupler is entered respectively
Row finite element stimulation (ensures structure number of magnetic poles and each part inside/outside diameter size all same), verifies this radial permanent magnet coupler
Compared with the effect of the lifting that traditional structure compares torque transmission capacity.Can see in the magnetic induction line distribution map of traditional permanent magnetic coupling,
There are substantial portion of ineffective magnetic fluxes 31 between the contrary inside/outside magnet of adjacent two magnetizing direction, close inside two magnets,
Outer/inner magnet is not flowed through, this part magnetic flux can not play a part of to transmit power, belong to invalid magnetic flux.Can from figure
Invalid magnetic flux in every piece of outer magnet accounts for the 51.85% of total magnetic flux（14/27=51.85%）Left and right.Observe the magnetic of this coupler
Sense line distribution situation, it can be seen that the ineffective magnetic fluxes 32 between adjacent outer magnetic pole are significantly reduced, by the relatively low copper dividing plate of magnetic conductivity
Affect, most of magnetic induction line flows between interior outer magnet, play a part of to transmit power.From Fig. 5 80 are external magnetic field, and 31 are
The ineffective magnetic fluxes of conventional radial permanent magnetic coupling, 32 is the ineffective magnetic fluxes of new radial permanent magnet coupler, it can be seen that outward
The gross thickness of dividing plate 20（Dividing plate gross thickness=dividing plate quantity × each block board thickness）Account for outer magnet mean radius { mean radius=1/
2 (outer magnet external diameters+outer magnet internal diameter) } place's girth 14% or so when, the invalid magnetic flux in every piece of outer magnet 30 only accounts for total magnetic flux
The 44.4% of amount（12/27=44.4%）, torque transmission capacity is compared with traditional structure lifting 4.25% or so.From simulation result,
On the premise of ensureing the inside/outside diameter size all same of device number of magnetic poles and each part, the transmission power density of the coupler will
Higher than the power density that conventional radial permanent magnet can be transmitted.
Claims (2)
1. a kind of high power density radial permanent magnet coupler, it is characterised in that：The coupler includes outer matrix（10）, external partition
（20）, outer magnet（30）, outer encapsulating（40）, interior encapsulating（50）, inner magnet（60）And endobasal-body（70）, inner magnet（60）With outer magnetic
Body（30）Quantity be respectively 14, realized by the magnetic force of 14 interior outer magnet interphase interactions power radially side
To transmission, the magnetizing direction of two adjacent magnets between adjacent outer magnet conversely, place external partition（20）, external partition（20）It is every magnetic
Material, adjacent inner magnet close-packed arrays.
2. a kind of high power density radial permanent magnet coupler according to claim 1, it is characterised in that：The external partition
（20）Gross thickness be outer magnet（60）The 13.8% to 14.2% of girth at mean radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621204885.8U CN206117473U (en) | 2016-11-09 | 2016-11-09 | Radial permanent magnet coupling of high power density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621204885.8U CN206117473U (en) | 2016-11-09 | 2016-11-09 | Radial permanent magnet coupling of high power density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206117473U true CN206117473U (en) | 2017-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201621204885.8U Active CN206117473U (en) | 2016-11-09 | 2016-11-09 | Radial permanent magnet coupling of high power density |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300890A (en) * | 2016-11-09 | 2017-01-04 | 中国船舶重工集团公司第七0三研究所 | A kind of high power density radial permanent magnet bonder |
| CN109617369A (en) * | 2019-01-21 | 2019-04-12 | 诸暨和创电机科技有限公司 | Permanent-magnet speed governor |
-
2016
- 2016-11-09 CN CN201621204885.8U patent/CN206117473U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300890A (en) * | 2016-11-09 | 2017-01-04 | 中国船舶重工集团公司第七0三研究所 | A kind of high power density radial permanent magnet bonder |
| CN109617369A (en) * | 2019-01-21 | 2019-04-12 | 诸暨和创电机科技有限公司 | Permanent-magnet speed governor |
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