CN110444989A - A kind of high-temperature superconductive cable and its connector connecting method - Google Patents
A kind of high-temperature superconductive cable and its connector connecting method Download PDFInfo
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- CN110444989A CN110444989A CN201910807890.XA CN201910807890A CN110444989A CN 110444989 A CN110444989 A CN 110444989A CN 201910807890 A CN201910807890 A CN 201910807890A CN 110444989 A CN110444989 A CN 110444989A
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- band
- single layer
- long band
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- piece
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/021—Soldered or welded connections between two or more cables or wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/68—Connections to or between superconductive connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
The present invention relates to a kind of high-temperature superconductive cable and its connector connecting methods, belong to high temperature superconducting materia technical field, solve the problems, such as existing high-temperature superconductive cable connector volume is big, resistance is big, it is thermally conductive it is slow, difficulty of processing is big and connector stability is poor.The connector connecting method includes the following steps: step 1: a plurality of high-temperature superconductor band successively being stacked from beginning to end and is welded into the long band of single layer；Step 2: the long band of multiple single layers is stacked, and the pad of the long band of adjacent two layers single layer is spaced setting in the horizontal direction；Step 3: the long band of multiple single layers stacked is bundled into high-temperature superconductor using bundled piece and is folded.A kind of high-temperature superconductive cable based on the connector connecting method is also provided.Connector connecting method manufacture craft of the invention is simple, is easily worked, and using cable connector volume made of inventive joint connection method is small, resistance is small, thermally conductive fast, application prospect is extensive.
Description
Technical field
The present invention relates to high temperature superconducting materia technical field more particularly to a kind of high-temperature superconductive cable and its connector connection sides
Method.
Background technique
High-temperature superconductor is the trend of superconduction development, and the performance of current two generations high-temperature superconductor band has been no less than low-temperature superconducting
Niobium titanium wire, but there are several factors to restrict its large-scale application at present.For example, bandlet anisotropic, cannot be processed into Lu
Plucked instrument good fortune cable, unmature cable working technology, price height etc., so current high-temperature superconductor is only applied in small test
On room magnet and interpolation magnet, there are no the applications of large high-temperature superconducting magnet.
Domestic and international some research institutions are developing always high-temperature superconductive cable, till now there are no one it is mature can
In a manner of the cable winding of the two generation high-temperature superconductor band ReBCO (RE, Ba and Cu oxide) used in batches.For example, MIT
The TSTC (Twisted Stacked-Tape Cable) that (Massachusetts Institute of Technology) is developed
Different layers of ReBCO bands are put into two copper sheets, and are tied up with stainless steel wire by high-temperature superconductor ReBCO cable, are then turned round
It twists, but this high-temperature superconductive cable is suitble to the magnet of the compact small size of coiling, can not be applied to large scale magnet.MIT is also based on
The high-temperature superconductive cable of TSTC has developed single channel cable and triple channel cable, but needs continuously to slot on copper rod, precision and
The very difficult assurance of length, it is also necessary to TSTC cable be imbedded, not only cost is very high, difficult to control, it is also difficult to realize that long cable is led
The processing of body.CORC (the Conductor on that ACT (Advanced Conductor Technologies LLC) is developed
Round Core) cable has excessively poor cable band length ratio, for example needs 100 meters of CORC cable, need single height
Just nearly 200 meters of the length of temperature superconductive band, the limited length of single REBCO band is produced at this stage, is substantially hundred meters of amounts
Grade, length is bigger, and cost can be higher, while relatively low engineering current density.General Cable
RACC (Roebel Assembled Coated Conductor) cable that Superconductors Ltd is developed wastes high temperature
Superconducting tape, expense is high, anisotropy.
High-temperature superconductive cable connector is inevitable problem in cable development process, due to current high-temperature superconductor band list
The superconducting tape of root limited length, producer's batch production is substantially hundred meters of magnitudes, if first processing cable, can only use one
The band of sample length is substantially more than 100 meters of length, and the band for causing producer to produce has many waste materials, short not
It can use, grow needs and dismissed, and every more than 100 meters of cable just need to process a connector, and the size of connector is much larger than electricity
Cable size causes cable uneven, and coiling is relatively difficult.So to be made into hyperconductive cable must solve the difficulty of cable connector
Topic, current hyperconductive cable connector both domestic and external have a various forms, but no matter which kind of form, the size of connector is all bigger, very
It is extremely more much larger than the size of former cable, and processing technology is complicated, and difficulty of processing is big, and the stability of connector is not also high, if done
One large-scale superconducting coil, when will face hundreds of superconducting joints, coil winding is difficult, and workload will be very huge.Therefore, anxious
It need to develop that a kind of simple process, resistance is small, thermally conductive fast, small in size cable connector connection method.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of high-temperature superconductive cable and its connector connecting method, to solve
Certainly existing high-temperature superconductive cable connector volume is big, resistance is big, thermally conductive slow, difficulty of processing is big and the problem of connector stability difference.
The purpose of the present invention is mainly achieved through the following technical solutions:
On the one hand, a kind of high-temperature superconductive cable connector connecting method is provided, is included the following steps:
Step 1: a plurality of high-temperature superconductor band is successively stacked from beginning to end and is welded into the long band of single layer；
Step 2: the long band of multiple single layers is stacked, the pad of the long band of adjacent two layers single layer in the horizontal direction between
Every setting；
Step 3: the long band of multiple single layers stacked is bundled into high-temperature superconductor using bundled piece and is folded.
It further, further include step 4: in the aluminium-coating surface that high-temperature superconductor is folded.
Further, in step 1, the arrangement mode of band in the long band of single layer are as follows: remove the first piece of tape and last
The both ends pad of piece of tape, intermediate each piece of tape is located at the two sides of the piece of tape, alternatively, intermediate each piece of tape
Both ends pad is located at the ipsilateral of the piece of tape.
Further, in step 2, the lateral distance between m-th of pad of the long band of adjacent two layers single layer is D2, m
For the integer more than or equal to 1.
Further, it on the basis of first pad of the long band of top layer single layer, stacks from top to bottom, n-th layer single layer
The lateral distance of first pad of first pad of long band apart from the long band of top layer single layer is (n-1) × D2,
In, n is the integer more than or equal to 2；The length of first piece of tape of the long band of single layer is greater than the length of pad, and is less than or equal to
The factory length of single strips.
On the other hand, a kind of high-temperature superconductive cable based on above-mentioned connector connecting method is provided, high-temperature superconductive cable includes
High-temperature superconductor is folded, and high-temperature superconductor is folded to stack setting by the long band of multiple single layers；The long band of single layer by a plurality of high-temperature superconductor band according to
Secondary head and the tail, which stack, to be welded, and the pad of the long band of adjacent two layers single layer is spaced setting in the horizontal direction.
It further, further include bundled piece, bundled piece is used to the long band of multiple single layers stacked being bundled into high-temperature superconductor
It is folded；The folded surface of high-temperature superconductor is equipped with alclad.
Further, the lateral distance between m-th of pad of the long band of adjacent two layers single layer is D2, m be greater than etc.
In 1 integer；On the basis of first pad of the long band of top layer single layer, stack from top to bottom, the long band of n-th layer single layer
The lateral distance of first pad of first pad apart from the long band of top layer single layer is (n-1) × D2, wherein n is big
In the integer for being equal to 2；The length of first piece of tape of the long band of single layer is greater than the length of pad, and is less than or equal to single strips
Factory length.
Further, the folded upper and lower surfaces of high-temperature superconductor are respectively equipped with one layer of aluminium backing.
Further, bundled piece is aluminium wire or aluminium flake.
Compared with prior art, the present invention one of at least has the advantages that:
A) high-temperature superconductive cable connector connecting method provided by the invention first successively folds a plurality of high-temperature superconductor band from beginning to end
It puts and is welded into the long band of single layer；The long band of multiple single layers is stacked again, the pad of the long band of adjacent two layers single layer is in level side
Interval setting upwards；The long band of multiple single layers stacked is bundled into high-temperature superconductor using bundled piece to fold, this method is single electricity
The big connector of cable becomes the connector of single strips and is uniformly distributed in the cable, cable connector pair made of the connector connecting method
The size of cable changes small, solves that cable connector is more, and complex process, difficulty of processing is big, the problems such as coiling difficulty, energy
It is enough to realize the cable for being processed into random length, and this joint style is suitable for high-temperature superconductive cables all at present, application
Prospect is extensive.
B) high-temperature superconductive cable connector connecting method provided by the invention, the requirement to the length of high-temperature superconductor band is small,
It solves the problems, such as the high-temperature superconductor band limited length of current producer's production and length is non-uniform, reduce hts band
The production cost of material producer.
C) high-temperature superconductive cable provided by the invention, high-temperature superconductor is folded to stack setting by the long band of multiple single layers；Single layer is long
Band is successively stacked from beginning to end by a plurality of high-temperature superconductor band and is welded, and the pad of the long band of adjacent two layers single layer is in level side
The big connector of individual cable is become the connector of single strips and is evenly distributed on cable by interval setting upwards, structure design
In, cable dimension is uniform, increases without part, substantially reduces connector volume, and joint structure is simple, handling ease, work
Work amount is small, and band does not waste, and band how long can be used, and reduces cost.Further, since connector is small in size, electric cable heating is more equal
It is even, and weld length can be adjusted according to demand, and then adjusts connection resistance, it is with a wide range of applications.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Other feature and advantage of invention will illustrate in the following description, also, certain advantages can become from specification it is aobvious and
It is clear to, or understand through the implementation of the invention.The objectives and other advantages of the invention can by specification, claims with
And it is achieved and obtained in specifically noted content in attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is middle cable connector of embodiment of the present invention schematic diagram；
Fig. 2 is long cable joint schematic diagram in the embodiment of the present invention；
Fig. 3 is multi-layer cable connector schematic diagram in the embodiment of the present invention；
Fig. 4 is the folded schematic diagram of the high-temperature superconductor using aluminium wire binding in the embodiment of the present invention；
Fig. 5 is the folded schematic diagram of the high-temperature superconductor using aluminium flake binding in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram that aluminium component is covered in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram that extrusion head in aluminium component is covered in the embodiment of the present invention；
Fig. 8 is square cable structural schematic diagram in the embodiment of the present invention；
Fig. 9 is round cable structural schematic diagram in the embodiment of the present invention.
Appended drawing reference:
1- aluminium backing；2- high-temperature superconductor is folded；201- high-temperature superconductor band；3- bundled piece；4- extrusion head；5- aluminium bar material；6-
Leading-out terminal；7- export mouth.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention, it is not intended to limit the scope of the present invention.
Embodiment one
Since the high-temperature superconductor band length of high-temperature superconductor band producer production is different, from several meters to several hundred rice etc., criticize
The longest length for being substantially more than 100 meters of quantization production.If first processing cable, the band of the same length can only be used,
It is substantially more than 100 meters of length, the band for causing producer to produce has many waste materials, and it is short to use, grow needs
It dismisses, and every more than 100 meters of cable just need to process a connector, and the size of connector is much larger than cable dimension, causes electricity
Cable is uneven, and coiling is relatively difficult.A kind of new high-temperature superconductive cable joint style is present embodiments provided, the high temperature is super
The big connector of traditional cable being become the connector of single strips and being uniformly distributed in the cable for cable connector connecting method, should
High-temperature superconductive cable connector connecting method includes the following steps:
Step 1: a plurality of high-temperature superconductor band 201 is successively stacked from beginning to end and is welded into the long band of single layer.
The N layers of long band of single layer are made according to the design needs, and each long band of single layer needs to weld M high-temperature superconductor band
201 (can abbreviation band 201), as shown in Figure 1 to Figure 3, and successively name L1, L2, L3, L4... Ln…LN, N >=2, each single layer
The pad of long band is successively named as K1, K2, K3... Km..., KM, M >=2 determine weldering based on the performance requirement to cable resistance
The length D connect1, weld length D1Namely adjacent two high-temperature superconductor bands 201 stack coincidence length.In practical operation, according to
The limit value of required connection resistance determines weld length D1Numerical value or numberical range, it is preferred that D1It is 5cm into 20cm
A certain numerical value or numberical range.
In the present embodiment, in the long band of single layer there are two types of the arrangement modes of band: first way is to remove the first band
The both ends pad of material and the last item band, each piece of tape in centre of the long band of single layer is located at the two sides of the piece of tape；The
Two kinds of modes are to remove the first piece of tape and the last item band, the both ends welding of each piece of tape in centre of the long band of single layer
Point is located at the ipsilateral of the piece of tape, as shown in Fig. 2 to 3.In view of high-temperature superconductor band has front and back sides, front has YBCO's
Face, two bands of welding are just arranged facing to front, i.e., the face YBCO of one band and the face the YBCO face of another band
It is welded, this welding manner can reduce welding kesistance.
Step 2: the long band of multiple single layers is stacked, the pad of the long band of adjacent two layers single layer in the horizontal direction between
Every setting.
The long band of multiple single layers in step 1 is vertical stacked, when being stacked, by the weldering of the long band of the single layer of different layers
Contact disperses in the cable, that is to say, that m-th of pad of the long band of adjacent two layers single layer is arranged at vertical upper interval, hangs down
Projection is not overlapped upwards, and the big connector of traditional cable is become the connector of the long band of single layer and is uniformly distributed in the cable.It is preferred that
Ground, the lateral distance between m-th of pad of the long band of adjacent two layers single layer are D2, wherein m is the integer more than or equal to 1.
Preferably, D2Greater than 1m.It should be noted that the lateral distance between m-th of pad of the long band of adjacent two layers single layer can
It can also be different with identical, as long as lateral distance between the two is greater than 1m, therefore, connector connecting method pair of the invention
The length of band greatly reduces band waste material in cable manufacturing process without strict demand, and short strip material or long band do not need to dismiss,
It can also rationally utilize, cost can be significantly reduced.
In order to further decrease connector volume, further the vertical upper stacking mode of the long band of multiple single layers is optimized,
It on the basis of first pad of the long band of top layer single layer, stacks from top to bottom, first welding of the long band of n-th layer single layer
The lateral distance of first pad of the point apart from the long band of top layer single layer is (n-1) × D2, wherein n is whole more than or equal to 2
Number, the length of the first piece of tape of the long band of top layer single layer are greater than the length D of pad1.When n is 1, only a single layer is long
Band is not required to stack, and cable of the connector connecting method of the present embodiment for the number of plies of the long band of single layer more than or equal to 2 layers connects
It connects.Due to being limited by single strips factory length, the length of the first piece of tape of the long band of single layer is less than or equal to single strips
Maximum length, when a certain long band of layer single layer the first piece of tape according to incremental calculation length be greater than single strips maximum
When length, completing the first round is stacked, and is arranged from the beginning, and the connector arrangements of multiple long bands of single layer is as shown in figure 3, the
Ln-1First piece of tape length of the layer long band of single layer is D3, and the maximum length of single strips is D3, therefore, opened from LN layers
Begin, carry out the second wheel according to first round stacking mode and stack, so recycle, until the number of plies satisfaction of the long band of single layer stacked is set
Meter demand.Alternatively, the first piece of tape of the long band of single layer is according to D after stacking the completion first round2Length successively decrease setting,
When the first piece of tape length of the long band of a certain single layer is less than or equal to weld length D1When, it completes the second wheel and stacks, it is then each
First piece of tape of the layer long band of single layer is according to D2Increasing lengths setting, i.e., according to the first round stack operation carry out third round
It stacks, circuits sequentially, until the number of plies of the long band of single layer stacked meets design requirement.For 120 meters of single band length,
1200 meters of long cables are such as needed, 10 bands is taken around and welds together, 5 layers of cable needs about 50 bands.
One preferred embodiment of the present embodiment, production high-temperature superconductor folded 2 use the high-temperature superconductor band 201 of equal length,
It is preferred that using the length of high-temperature superconductor band 201 for 120m ± 0.5m.The long band of the single layer made of equal length band, structure
Identical, the position of pad is also identical, when stacking, the pad of adjacent two layers same sequence number is staggered and is stacked, stack completion
Afterwards, the shortest band in 2 both ends is folded according to high-temperature superconductor to be cut, since the band length specification of use is identical, convenient welding,
Batch may be implemented to weld, to improve working efficiency.
Another preferred embodiment of the present embodiment, the high-temperature superconductor band different using length of production high-temperature superconductor folded 2
201, specially the first piece of tape is different with the length of the last item band.Specifically, designing need according to cable length, resistance etc.
It wants, the length of the first piece of tape and the last item band is pre-established, the use equal length of intermediate strip.It is exemplary
, the long band of multiple single layers stacked is taken turns for every, the length of long the first piece of tape of band of single layer presents to add from top to bottom sets,
The length of the last item band tapers off setting from top to bottom, the setting alternatively, length of the first piece of tape tapers off from top to bottom,
The length of the last item band is presented to add and be set from top to bottom, when stacking, is stacked according to the long band head and the tail alignment of single layer, no
It must be cut, so that band be avoided to waste.
It should be noted that hyperconductive cable connector connecting method provided in this embodiment, used single strips length
Without specifically limited, can using equal length band and also use the band of different length.One of preferred embodiment,
Using the high-temperature superconductor band 201 of different length, the band of different length is numbered before being welded into the long band of single layer
And the length data of each high-temperature superconductor band 201 is recorded, when the long band production superconduction of single stacked is folded, guarantee adjacent two layers
The pad of the long band of single layer is not overlapped, therefore, to the length of high-temperature superconductor band without strict demand, to solve mesh
The high-temperature superconductor band limited length and the non-uniform problem of length of preceding producer's production, improve band utilization rate, reduce high
The production cost of temperature superconductive band producer.
Step 3: the long band of multiple single layers stacked is bundled into high-temperature superconductor folded 2 using bundled piece 3.
The long band lamination of multiple single layers that step 2 makes is bundled using bundled piece 3, high-temperature superconductor folded 2 is made,
Preferably, bundled piece 3 is aluminium wire or aluminium flake.
In order to improve the performance of high-temperature superconductive cable, before using the winding binding of bundled piece 3,2 are folded in high-temperature superconductor
Upper and lower surfaces respectively add one layer of aluminium backing 1, the width and high-temperature superconductor folded 2 of aluminium backing 1 it is of same size, as shown in Fig. 4 to Fig. 5,
The multiple single layers long band lamination for placing aluminium backing 1 is carried out with aluminium wire or aluminium flake wrapped, forms a high-temperature superconductor and fold 2,
Respectively add one layer of aluminium backing 1 that can protect high-temperature superconductor band in the upper and lower surfaces that high-temperature superconductor folds 2, reduces folded in production superconduction
It is unfavorable to bring in high-temperature superconductive cable structure with the factors such as stretching, extruding and high temperature in high-temperature superconductive cable production process
It influences.
Step 4: 2 aluminium-coating surface is folded in high-temperature superconductor.
In the present embodiment, using aluminium as liptinite, with the metal phases ratio such as copper, the fusing point of aluminium is low, conductivity is high, thermal conductivity
Height uses aluminium to have the advantage that (1) is quenched in superconducting tape or when overcurrent, aluminium can be used as conductor conduction as liptinite,
It protects superconducting tape not to be burned out, ensure that the job stability of high-temperature superconductive cable, extend service life；(2) coiling is big
When type magnet, aluminium can be used as support construction, and high-temperature superconductive cable itself can undertake big absolutely under the action of aluminium support construction
Partial electromagnetic stress and shrinkage stress, thus improve the job stability of high-temperature superconductive cable.
Aluminium process is covered in this step, is carried out using aluminium coating machine, includes the following steps: to fold high-temperature superconductor into 2 infeed aluminium
Coating machine；Cover aluminium component by way of frictionally heating aluminium bar material 5 extruding be heated to 450 or so, so that aluminium is softened, then again
The aluminium extruded of softening is pressed on high-temperature superconductor folded 2, and the structural schematic diagram for covering aluminium component is as shown in Figure 6.Wherein, the extruding of aluminium coating machine
First 4 structure folds the identical export mouth 7 in 2 cross sections with high-temperature superconductor as shown in fig. 7, extrusion head 4 is equipped with, and the aluminium of softening enters
In extrusion head 4 outer wall to the space between leading-out terminal 6, high-temperature superconductor folded 2 through export mouth 7 during 6 outlet of leading-out terminal, aluminium
It is coated on high-temperature superconductor and folds 2 surfaces.Since aluminium is relatively soft, in order to form as early as possible, leading-out terminal 6 is equipped with cooling device, it is preferred to use
The cooling mode of water.The cable shape of final molding includes but does not limit following two, and one is rectangle as shown in Figure 8 electricity
Cable, another kind is round cable as shown in Figure 9, for different magnets.
Compared with prior art, high-temperature superconductive cable connector connecting method provided in this embodiment, first surpasses a plurality of high temperature
Conduction band material 201 successively stacks from beginning to end is welded into the long band of single layer；High-temperature superconductor folded 2, adjacent two layers single layer is made in long band again
The pad of long band is spaced setting in the horizontal direction, and the big connector of traditional cable is become the connector of the long band of single layer and equal
In the cable, connector made of the method is small in size for even distribution, small to the size change of cable, and the structure of connector is simple, processes
Be easy, workload it is small, solve that cable connector is more, and complex process, difficulty of processing is big, the problems such as coiling difficulty utilize
Connector connecting method of the invention can be processed into the cable of random length, and this joint style is suitable for all kinds of at present
High-temperature superconductive cable.In addition, requirement of this method to the length of high-temperature superconductor band 201 is small, solves current producer's production
201 limited length of high-temperature superconductor band and the non-uniform problem of length reduce the production cost of high-temperature superconductor band producer,
It is with a wide range of applications.
Embodiment two
Of the invention has one embodiment, discloses a kind of high-temperature superconductive cable, which is based on embodiment
Cable connector connection method in one is formed by connecting, which includes: high-temperature superconductor folded 2, and high-temperature superconductor folded 2 is by more
A long band of single layer stacks setting；The long band of single layer is successively stacked from beginning to end by a plurality of high-temperature superconductor band 201 and is welded, adjacent
The pad of the long band of two layers of single layer is spaced setting in the horizontal direction；It further include bundled piece 3, bundled piece 3 is multiple by what is stacked
The long band of single layer is bundled into high-temperature superconductor folded 2.
In order to improve the performance of high-temperature superconductive cable, the upper and lower surfaces of high-temperature superconductor folded 2 are respectively equipped with one layer of aluminium backing 1,
Bundled piece 3 bundlees aluminium backing 1 and the folded winding of superconduction, it is preferable that bundled piece 3 is aluminium wire or aluminium flake.High-temperature superconductor folded 2
Upper and lower surfaces are respectively set aluminium backing 1, the width and high-temperature superconductor folded 2 of aluminium backing 1 it is of same size, as shown in Fig. 4 to Fig. 5.
Respectively add one layer of aluminium backing 1 that can protect high-temperature superconductor band in the upper and lower surfaces that high-temperature superconductor folds 2, reduces folded in production superconduction
It is unfavorable to bring in high-temperature superconductive cable structure with the factors such as stretching, extruding and high temperature in high-temperature superconductive cable production process
It influences.
In order to improve the performance of high-temperature superconductive cable, the surface of high-temperature superconductor folded 2 is equipped with alclad, using aluminium as stabilization
Body, with the metal phases ratio such as copper, the fusing point of aluminium is low, conductivity is high, thermal conductivity is high, and aluminium is used to have the advantage that (1) as liptinite
It is quenched in superconducting tape or when overcurrent, aluminium can be used as conductor conduction, and superconducting tape protect not to be burned out, ensure that high temperature surpasses
The job stability of cable, extends service life；(2) when coiling large size magnet, aluminium can be used as support construction, in aluminium branch
High-temperature superconductive cable itself can undertake the electromagnetic stress and shrinkage stress of the overwhelming majority under the action of support structure, thus improve
The job stability of high-temperature superconductive cable.
In the present embodiment, the N layers of long band of single layer are made according to the design needs, and each long band of single layer needs to weld M band
Material, and successively name L1, L2, L3, L4... Ln…LN, the pad of N >=2, each long band of single layer is successively named as K1, K2,
K3... Km..., KM, M >=2 determine the length D of welding based on the performance requirement to cable resistance1, weld length D1Namely adjacent two
High-temperature superconductor band 201 stacks coincidence length.In practical operation, according to the limit value of required connection resistance, weldering is determined
Spreading degree D1Numerical value or numberical range, it is preferred that D1The a certain numerical value or numberical range that are 5cm into 20cm.
In the present embodiment, in the long band of single layer there are two types of the arrangement modes of band: first way is to remove the first band
The both ends pad of material and the last item band, each piece of tape in centre of the long band of single layer is located at the two sides of the piece of tape；The
Two kinds of modes are to remove the first piece of tape and the last item band, the both ends welding of each piece of tape in centre of the long band of single layer
Point is located at the ipsilateral of the piece of tape, as shown in Fig. 2 to 3.In view of high-temperature superconductor band has front and back sides, front has YBCO's
Face, two bands of welding are just arranged facing to front, i.e., the face YBCO of one band and the face the YBCO face of another band
It is welded, this welding manner can reduce welding kesistance.
In the present embodiment, high-temperature superconductor folded 2 is stacked together by the long band of layer single layer, the welding of the long band of adjacent two layers single layer
Point interval setting in the horizontal direction.When the long band of multiple single layers is vertical stacked, by the weldering of the long band of the single layer of different layers
Contact disperses in the cable, that is to say, that m-th of pad of the long band of adjacent two layers single layer is arranged at vertical upper interval, hangs down
Projection is not overlapped upwards, and the big connector of traditional cable is become the connector of the long band of single layer and is uniformly distributed in the cable.It is preferred that
Ground, the lateral distance between m-th of pad of the long band of adjacent two layers single layer are D2, wherein m is the integer more than or equal to 1.
Preferably, D2Greater than 1m.It should be noted that the lateral distance between m-th of pad of the long band of adjacent two layers single layer can
It can also be different with identical, as long as lateral distance between the two is greater than 1m, therefore, connector connecting method pair of the invention
The length of band greatly reduces band waste material in cable manufacturing process without strict demand, and short strip material or long band do not need to dismiss,
It can also rationally utilize, cost can be significantly reduced.
In order to further decrease connector volume, further the vertical upper stacking mode of the long band of multiple single layers is optimized,
It on the basis of first pad of the long band of top layer single layer, stacks from top to bottom, first welding of the long band of n-th layer single layer
The distance of first pad of the point apart from the long band of top layer single layer is (n-1) × D2, the first band of the long band of top layer single layer
The length of material is greater than the length D of pad1.Due to being limited by single strips factory length, the first band of the long band of single layer
The length of material is less than or equal to the maximum length of single strips, when the first piece of tape of a certain long band of layer single layer is according to incremental calculation
Length be greater than single strips maximum length when, complete the first round stack, arrange from the beginning, multiple long bands of single layer connect
Head arrangement is as shown in figure 3, Ln-1First piece of tape length of the layer long band of single layer is D3, and single strips most greatly enhance
Degree is D3, therefore, from LNLayer starts, and carries out the second wheel according to first round stacking mode and stacks, so recycles, until stack
The number of plies of the long band of single layer meets design requirement.Alternatively, the first piece of tape of the long band of single layer is pressed after stacking the completion first round
According to D2Length successively decrease setting, when the first piece of tape length of the long band of a certain single layer is less than or equal to weld length D1When, it completes
Second wheel stacks, and the first piece of tape of the subsequent each layer of long band of single layer is according to D2Increasing lengths setting, i.e., according to first
Wheel stacks operation progress third round and stacks, and circuits sequentially, until the number of plies of the long band of single layer stacked meets design requirement.With list
For 120 meters of piece of tape length, 1200 meters of long cables are such as needed, 10 bands is taken around and welds together, 5 layers of cable
Need about 50 bands.
One preferred embodiment of the present embodiment, production high-temperature superconductor folded 2 use the high-temperature superconductor band 201 of equal length,
It is preferred that using the length of high-temperature superconductor band 201 for 120m ± 0.5m.The long band of the single layer made of equal length band, structure
Identical, the position of pad is also identical, when stacking, the pad of adjacent two layers same sequence number is staggered and is stacked, stack completion
Afterwards, the shortest band in 2 both ends is folded according to high-temperature superconductor to be cut, since the band length specification of use is identical, convenient welding,
Batch may be implemented to weld, to improve working efficiency.
Another preferred embodiment of the present embodiment, the high-temperature superconductor band different using length of production high-temperature superconductor folded 2
201, specially the first piece of tape is different with the length of the last item band.Specifically, designing need according to cable length, resistance etc.
It wants, the length of the first piece of tape and the last item band is pre-established, the use equal length of intermediate strip.It is exemplary
, the long band of multiple single layers stacked is taken turns for every, the length of long the first piece of tape of band of single layer presents to add from top to bottom sets,
The length of the last item band tapers off setting from top to bottom, the setting alternatively, length of the first piece of tape tapers off from top to bottom,
The length of the last item band is presented to add and be set from top to bottom, when stacking, is stacked according to the long band head and the tail alignment of single layer, no
It must be cut, so that band be avoided to waste.
Compared with prior art, high-temperature superconductive cable provided in this embodiment, including high-temperature superconductor fold 2, high-temperature superconductor folded 2
Setting is stacked by the long band of multiple single layers；The long band of single layer is successively stacked from beginning to end by a plurality of high-temperature superconductor band 201 and is welded,
The pad of the long band of adjacent two layers single layer is spaced setting in the horizontal direction, which, which designs, becomes the big connector of individual cable
At single strips connector and be uniformly distributed in the cable, cable dimension is uniform, without part increase, substantially reduce fitting body
Product significantly reduces the difficulty of coiling, and joint structure is simple, handling ease, and workload is small, and band does not waste, more
Long band can be used, and cost is reduced.Further, since connector is small in size, electric cable heating more evenly, and can adjust according to demand
Weld length, and then connection resistance is adjusted, it is with a wide range of applications.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of high-temperature superconductive cable connector connecting method, which comprises the steps of:
Step 1: a plurality of high-temperature superconductor band (201) is successively stacked from beginning to end and is welded into the long band of single layer；
Step 2: the long band of multiple single layers is stacked, and the pad of the long band of adjacent two layers single layer is spaced in the horizontal direction to be set
It sets；
Step 3: the long band of multiple single layers stacked is bundled into high-temperature superconductor using bundled piece and folds (2).
2. high-temperature superconductive cable connector connecting method according to claim 1, which is characterized in that further include step 4: In
The high-temperature superconductor folds the aluminium-coating surface of (2).
3. high-temperature superconductive cable connector connecting method according to claim 1, which is characterized in that in step 1, single layer is long
The arrangement mode of band in band are as follows: remove the first piece of tape and the last item band, the both ends weldering of intermediate each piece of tape
Contact is located at the two sides of the piece of tape, alternatively, the both ends pad of intermediate each piece of tape is located at the ipsilateral of the piece of tape.
4. high-temperature superconductive cable connector connecting method according to claim 1-3, which is characterized in that step 2
In, the lateral distance between m-th of pad of the long band of adjacent two layers single layer is D2, m is the integer more than or equal to 1.
5. high-temperature superconductive cable connector connecting method according to claim 4, which is characterized in that with the long band of top layer single layer
First pad on the basis of, stack from top to bottom, first pad of the long band of n-th layer single layer is long apart from top layer single layer
The lateral distance of first pad of band is (n-1) × D2, wherein n is the integer more than or equal to 2；
The length of first piece of tape of the long band of single layer is greater than the length of pad, and is less than or equal to the factory director out of single strips
Degree.
6. a kind of high-temperature superconductive cable based on connector connecting method described in any one of claim 1 to 5, which is characterized in that
The high-temperature superconductive cable includes that high-temperature superconductor folds (2), and high-temperature superconductor folds (2) and stacks setting by the long band of multiple single layers；Single layer
Long band is successively stacked from beginning to end by a plurality of high-temperature superconductor band (201) and is welded, the pad of the long band of adjacent two layers single layer
Interval setting in the horizontal direction.
7. high-temperature superconductive cable according to claim 6, which is characterized in that further include bundled piece (3), the bundled piece
(3) (2) are folded for the long band of multiple single layers stacked to be bundled into high-temperature superconductor；
The surface that the high-temperature superconductor folds (2) is equipped with alclad.
8. high-temperature superconductive cable according to claim 6, which is characterized in that m-th of weldering of the long band of adjacent two layers single layer
Lateral distance between contact is D2, m is the integer more than or equal to 1；
It on the basis of first pad of the long band of top layer single layer, stacks from top to bottom, first of the long band of n-th layer single layer
The lateral distance of first pad of the pad apart from the long band of top layer single layer is (n-1) × D2, wherein n is more than or equal to 2
Integer；
The length of first piece of tape of the long band of single layer is greater than the length of pad, and is less than or equal to the factory director out of single strips
Degree.
9. high-temperature superconductive cable according to claim 6, which is characterized in that high-temperature superconductor folds the upper and lower surfaces difference of (2)
Equipped with one layer of aluminium backing (1).
10. according to high-temperature superconductive cable described in claim 6-9, which is characterized in that the bundled piece (3) is aluminium wire or aluminium
Piece.
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| CN111403103A (en) * | 2020-04-29 | 2020-07-10 | 上海国际超导科技有限公司 | Superconducting tape |
| CN112207468A (en) * | 2020-09-14 | 2021-01-12 | 立讯精密组件(昆山)有限公司 | Material belt welding system, double-layer material belt welding method and material belt |
| CN112614623A (en) * | 2020-11-30 | 2021-04-06 | 广东电网有限责任公司 | Long-line wiring method for second-generation high-temperature superconducting stacked conductor |
| CN113345642A (en) * | 2021-06-21 | 2021-09-03 | 上海交通大学 | Preparation method of high-temperature superconducting narrow stack wire and high-temperature superconducting narrow stack wire |
| CN114792593A (en) * | 2022-06-01 | 2022-07-26 | 哈尔滨工业大学 | Superconducting magnet based on rectangular superconducting lamination and assembling method |
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