CN203013432U - Superconducting magnet - Google Patents
Superconducting magnet Download PDFInfo
- Publication number
- CN203013432U CN203013432U CN 201220637101 CN201220637101U CN203013432U CN 203013432 U CN203013432 U CN 203013432U CN 201220637101 CN201220637101 CN 201220637101 CN 201220637101 U CN201220637101 U CN 201220637101U CN 203013432 U CN203013432 U CN 203013432U
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- base
- superconducting
- cover plate
- exciting coil
- superconduction
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Abstract
The utility model relates to a superconducting magnet, which comprises a base and a cover plate, wherein one side of the center of the base is provided with an protruded cylindrical core part; the side surface of the core part is wound with a superconducting excitation coil; the other side of the center of the base is further provided with a groove which is penetrated into the core part; magnetic material is put into the groove; and the cover plate is tightly combined with the superconducting excitation coil and the base via fasteners. The superconducting magnet disclosed by the utility model has the advantages of compact structure, high integral intensity, low heat leakage and high heat conduction efficiency and is suitable for being applied in a superconducting motor, the magnetic field performance can be effectively improved, and the axial length of the motor is effectively reduced.
Description
Technical field
The utility model relates to a kind of superconducting magnet, belongs to the high-temperature superconducting motor technical field.
Background technology
Superconducting magnet is that high-temperature superconducting motor is achieved one of two large basic elements of character of energy converting between mechanical.Whether superconducting magnet works, and is directly connected to the success or failure of high-temperature superconducting motor.The superconducting state that superconducting motor needs superconducting magnet to be in all the time profound hypothermia is moved, normally superconducting magnet is placed in the environment of heat-insulation vacuum, when normal working temperature, to the requirement of working temperature, if can't instantaneously taking away, superconduction excitation winding amount of localized heat under magnetic field will cause the superconducting magnet quench based on the characteristics of hts tape bad mechanical property and wire rod; The excitation winding of superconduction simultaneously will be subject to larger electromagnetic force, and displacement slightly occurs under the effect of electromagnetic force, also can cause the superconducting magnet quench.Therefore, superconducting magnet is the high-temperature superconducting motor vitals, and it affects size, volume, overall performance and the refrigeration work consumption of motor, simultaneously the superconducting motor reliability of operation is also played an important role.
The superconducting magnet that US Patent No. 6605886B2 introduces adopts in the superconducting magnet periphery around the pipeline mode, and coolant media carries out cooling by pipeline to magnet; After the part that the superconduction winding is made by stainless sheet steel wrapped up, infusion epoxy resin became as a whole.
The superconducting magnet that US Patent No. 6911759B2 introduces, magnet is undertaken cooling by cold drawing, at cold drawing internal placement circulating cooling pipeline; Between inner each coil of superconduction excitation winding, separator is arranged, reduce coil inside stress by increasing separator, each coil is outside simultaneously connects by mechanical means with the stainless steel framework of ring-type and separator.
US Patent No. 6509819 superconducting magnets that B2 introduces, whole coil tapering type, single superconducting coil upper and lower surface has respectively structured metal layer to prop up overfill protection to superconducting coil, and tapering carries out coiling, with the hardware conformal; Have and coil conformal axle in whole coil top; This three routine high-temperature superconducting magnet complicated in mechanical structure is implemented difficulty larger.
A kind of superconducting magnet prior art is arranged, and wherein magnet is divided into supporting member, top board, clamping plate and superconduction winding four parts, adopts conduction cooling, and the magnet winding adopts clamp ring to fix, clamp ring both ends bolted; This magnet structure end is longer, and clamping plate can cause magnet winding two ends to clamp the middle part larger space problem, thereby can retain more resin when whole VPI, can affect whole magnet heat transfer efficiency.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of prior art, a kind of compact conformation is provided, bulk strength is high, the low heat of leaking, heat transfer efficiency is high, can effectively improve the magnetic field performance, effectively reduces the axial length of motor, can satisfy the superconducting motor demand high strength, low leak heat and heat transfer efficiency highly is adapted at using in superconducting motor, modular superconducting magnet.
The technical solution of the utility model is:
A kind of superconducting magnet comprises base and cover plate, and a side at described base center has the cylindric core of projection, be wound with the superconduction magnet exciting coil on the side of this core, the opposite side at described base center is also fluted, and is deep into core, places magnetic material in groove; Described cover plate is combined closely by securing member and superconduction magnet exciting coil and base.
Described superconduction magnet exciting coil is comprised of a plurality of disc coils and heat conduction member, and heat conduction member is connected with base.
Cover plate and base contact site coated with conductive glue or stickup indium sheet.
The upper lead-in wire of superconduction magnet exciting coil and lower lead-in wire are separately positioned in the groove of opening on described cover plate and base.
Described cover plate is comprised of top board and outer shroud, and described outer shroud is close to side and the base of superconduction magnet exciting coil, and described top board is close to end face and the outer shroud of core.
The utility model technique effect is mainly:
The upper lead-in wire of superconduction magnet exciting coil, lower lead-in wire are placed on respectively in the groove of opening on aforesaid cover plate and base, and this structure makes lead-in wire, lower lead-in wire contact resistance is little, power loss is little, heat conduction efficiency is high, fixation, reliable and stable.
Superconducting magnet of the present utility model, compact conformation, bulk strength is high, the low heat of leaking, heat transfer efficiency is high, can effectively improve the magnetic field performance, effectively reduces the axial length of motor, is adapted at using in superconducting motor.
Description of drawings
Fig. 1 is superconducting magnet overall structure figure
Fig. 2 is superconduction magnet exciting coil enlarged drawing;
Fig. 3 is superconducting magnet and external support component connection diagram.
Respectively be labeled as in figure: the 1-cover plate, the 2-base, 3-superconduction magnet exciting coil, the 4-magnetic material, the upper lead-in wire of 5-goes between under 6-, 7-disc coil, 8-heat conduction member, 9-core, 10-groove, 11-cover plate and base contact site, 12-external support component.
Embodiment
It is as follows that the utility model is described in further detail in conjunction with the accompanying drawings and embodiments:
Embodiment 1:
As shown in Figure 1, a kind of superconducting magnet, comprise base 2 and cover plate 1, one side at described base 2 centers has the cylindric core 9 of projection, this core 9 is supports of superconduction magnet exciting coil, is wound with superconduction magnet exciting coil 3 on the side of core 9, the opposite side at described base 2 centers also fluted 10, and be deep into core 9, the interior placement magnetic material 4 of groove 10; Described cover plate 1 is combined closely by securing member and superconduction magnet exciting coil 3 and base 2, opens the effect of protection superconduction magnet exciting coil.Described superconduction magnet exciting coil 3 is comprised of a plurality of disc coils 7 and heat conduction member 8, and heat conduction member 8 is connected with base 2.The upper lead-in wire 5 of described superconduction magnet exciting coil 3 and lower lead-in wire 6 are separately positioned in the groove of opening on described cover plate 1 and base 2.Described cover plate 1 is comprised of top board and outer shroud, and described outer shroud is close to side and the base 2 of superconduction magnet exciting coil 3, and described top board is close to end face and the outer shroud of core 9.
The present embodiment is a kind of superconducting magnet for four very high temperature superconducting motors.
As shown in Figure 2, described superconduction magnet exciting coil is comprised of a plurality of disc coils 7 and heat conduction member 8, and heat conduction member 8 is connected with base 2.Described connection is by riveted joint or securing member is fastening or welding manner is connected with base, guarantees cooling to the superconduction magnet exciting coil by base.Described heat conduction member 8 materials are aluminium or aluminium alloy or stainless steel or copper, and principal security superconduction magnet exciting coil uniform heat distribution improves heat conduction efficiency.Superconduction magnet exciting coil conduction cooling path radially is provided, reduces radially thermal resistance.The insulation oxidation processes is done on the heat conduction member surface, reduces vapour lock when guaranteeing to insulate between double-cake coils, improves heat transfer efficiency.At cover plate 1 and base 2 contact site coated with conductive glue or stickup indium sheet, can fine raising heat transfer efficiency.Described base 2 is processed by insulating oxide with described superconduction magnet exciting coil 3 contact positions, and there is an oxide layer on the surface, reduces vapour lock and improves heat transfer efficiency.The material of described base 2 and cover plate 1 is aluminium alloy or stainless steel.The upper lead-in wire 5 of superconduction magnet exciting coil 3 and lower lead-in wire 6 are placed on respectively in the groove of opening on described cover plate and base.Described cover plate is comprised of top board and outer shroud, and described outer shroud is close to side and the base of superconduction magnet exciting coil, and described top board is close to end face and the outer shroud of core.
That superconducting wire is carried out coiling around core 9 during concrete the making, become one with core 9 after 7 coilings of superconduction disc coil, to assemble with the coaxial tight fit of base 2, add heat conduction member 8 in assembling process between disc coil, heat conduction member 8 will make spread heat even, can not make the coil local overheating cause quench.After the superconduction magnet exciting coil assembles, according to superconduction magnet exciting coil size, cover plate is carried out fine finishining, then assemble, because the magnet cover plate is whole cover plate, therefore fine larger transversal electromagnetic force and the centrifugal force resisted.Apply low-temperature conductive adhesive or paste the indium sheet with 11 places, base 2 contact site at cover plate 1, can strengthen heat transfer efficiency.After whole magnet assembles, place the magnetic material 4 of high-permeability high magnetic permeability and high saturation magnetic induction at the magnet bottom groove, by securing member, magnet is assemblied on external support component 12, as shown in Figure 3.
Embodiment 2:
Different from above-described embodiment is: compact in order to make magnet structure, and be convenient to processing, cover plate can be further divided into top board and outer shroud two parts.Outer ring size is processed according to the excitation winding size, guarantees that superconduction magnet exciting coil and outer shroud gap are less.Outer shroud is close to side and the base of superconduction magnet exciting coil, and top board is close to end face and the outer shroud of core.The material of outer shroud and top board, submount material are consistent.
The utility model claim protection range is not limited to above-described embodiment.
Claims (4)
1. superconducting magnet, it is characterized in that, comprise base (2) and cover plate (1), one side at described base (2) center has the cylindric core (9) of projection, be wound with superconduction magnet exciting coil (3) on the side of this core (9), the opposite side at described base (2) center is fluted (10) also, and are deep into core (9), place magnetic material (4) in groove (10); Described cover plate (1) is combined closely by securing member and superconduction magnet exciting coil (3) and base (2).
2. superconducting magnet as claimed in claim 1, is characterized in that, described superconduction magnet exciting coil (3) is comprised of a plurality of disc coils (7) and heat conduction member (8), and heat conduction member (8) is connected with base (2).
3. superconducting magnet as claimed in claim 1 or 2, is characterized in that, the upper lead-in wire (5) of superconduction magnet exciting coil (3) and lower lead-in wire (6) are separately positioned in the groove of opening on described cover plate (1) and base (2).
4. superconducting magnet as claimed in claim 1 or 2, is characterized in that, described cover plate (1) is comprised of top board and outer shroud, and described outer shroud is close to side and the base (2) of superconduction magnet exciting coil (3), and described top board is close to end face and the outer shroud of core (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220637101 CN203013432U (en) | 2012-11-28 | 2012-11-28 | Superconducting magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220637101 CN203013432U (en) | 2012-11-28 | 2012-11-28 | Superconducting magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203013432U true CN203013432U (en) | 2013-06-19 |
Family
ID=48604999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220637101 Expired - Lifetime CN203013432U (en) | 2012-11-28 | 2012-11-28 | Superconducting magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203013432U (en) |
-
2012
- 2012-11-28 CN CN 201220637101 patent/CN203013432U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |