CN106526276A - Rogowski coil and skeleton, skeleton unit and skeleton manufacturing method thereof - Google Patents
Rogowski coil and skeleton, skeleton unit and skeleton manufacturing method thereof Download PDFInfo
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- CN106526276A CN106526276A CN201610929090.1A CN201610929090A CN106526276A CN 106526276 A CN106526276 A CN 106526276A CN 201610929090 A CN201610929090 A CN 201610929090A CN 106526276 A CN106526276 A CN 106526276A
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- skeleton
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- joinery
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a Rogowski coil and a skeleton, skeleton unit and skeleton manufacturing method thereof. The skeleton comprises more than two skeleton units, the skeleton units are spliced in an end-to-end mode to form the skeleton, and splicing positions are connected by use of mortise and tenon joint structures. The skeleton manufacturing method of the Rogowski coil comprises the step of forming an annular complete skeleton by splicing two skeleton units whose ends are provided with the mortise and tenon joint structures in an end-to-end mode through the mortise and tenon joint structures. Compared to a conventional integral processing mode, the method has the following advantages: the dimension of a workpiece can be reduced to a fraction of the original dimension, processing is facilitated, the die opening and material cost can be saved, and the processing difficulty and the production cost can be reduced. At the same time, what is different from an opening type Rogowski coil, the Rogowski coil skeleton provided by the invention employs the mortise and tenon joint structures and does not need to open an opening, the structure is stable after splicing is completed, and performance stability of a current transformer can be guaranteed.
Description
Technical field
The present invention relates to Luo-coil and its skeleton, skeleton unit and skeleton manufacture method.
Background technology
The Luo-coil for being traditionally used for measuring electric current typically has opening, two kinds of structures of remaining silent.Open type Rogowski coil is more
Inconvenient occasion, the such as live line measurement of conductor are dismounted for conductor.Which is installed and safeguards more convenient, but open type Rogowski
The precision of coil is lower slightly, and due to the reason such as frame for movement and processing and manufacturing, open type Rogowski coil is often with use time
Or number of times increase and precise decreasing.Rigid coil, including annular mostly are currently used for the open type Rogowski coil of live line measurement
Skeleton and the enamel-covered wire being uniformly wound on skeleton, skeleton adopts nonferromagnetic material, in the relative permeability of skeleton and air
Relative permeability it is identical, form air core coil, the enamel-cover line winding on air core coil is uniformly distributed, and formed per circle enamel-covered wire
Coil corresponding to plane through air core coil central shaft；During use, the Primary Conductor of cylinder is through in air core coil
The heart, both center overlapping of axles.The accuracy of measurement of Luo-coil depends on a stable mutual inductance constant M, in order to ensure coil
Stablizing for mutual inductance, must comply with following principle in design：1st, loop density is constant；2nd, skeleton constant cross section；3rd, line
Circle cross section and central axis.
Isolation circuit breakers are capable of achieving the integration manufacture of disconnecting switch, transformer, breaker, high by first and second equipment
Degree is integrated, realizes that function is combined, saves soil and investment.The problem that presently, there are is that 500kV and above landing pot type isolation are disconnected
Needed for the device of road, Luo-coil size is larger, and general external diameter is non-ferromagnetic in 1000mm or so, the material for making Luo-coil skeleton
Property material, the size difference of coil are accomplished by re-molding tool, and the excessive skeleton circularity produced of coil dimension, size
It is difficult to ensure that meet the requirements, therefore difficulty of processing is big, high cost.How large-scale Luo-coil skeleton is processed, and becoming
Problem certainly.
The content of the invention
It is an object of the invention to provide a kind of Luo-coil and its skeleton, skeleton unit and skeleton manufacture method, to solve
Large-scale Luo-coil difficulty of processing of the prior art is big, the problem of high cost.
For achieving the above object, in the present invention, the technical scheme of Luo-coil skeleton employing is：
Scheme 1：Luo-coil skeleton, the skeleton include more than two sections skeleton units, and each section of skeleton unit head and the tail splice and shape
Into the skeleton, stitching portion is connected using joinery and its construction.
Scheme 2：Luo-coil skeleton according to scheme 1, the termination of the skeleton unit has to be used for and adjacent bone
The clinch of the termination overlap joint of frame unit, the joinery and its construction is the joinery and its construction for including the clinch.
Scheme 3：Luo-coil skeleton according to scheme 2, the termination of one of skeleton unit are provided with T-shaped groove,
The T-shaped that the termination of adjacent skeleton unit is provided with shape with the groove coincide is raised, and the T-shaped groove and T-shaped projection are along bone
Frame axially extending in the middle part of the radial direction of corresponding termination, the joinery and its construction is raised by the T-shaped and T-shaped groove is formed.
Scheme 4：Luo-coil skeleton according to scheme 3, each skeleton unit shape are identical, and the two of each skeleton unit
Termination is respectively equipped with the T-shaped groove and the T-shaped is raised.
Scheme 5：Luo-coil skeleton according to scheme 1 or 2 or 3 or 4, fills out between the two ends of the joinery and its construction
Filled with adhesive.
In the present invention, the technical scheme of the skeleton unit employing of Luo-coil skeleton is：
Scheme 1：The skeleton unit of Luo-coil, the skeleton unit are used for wherein one section segmental arc for forming Luo-coil skeleton,
The two ends of skeleton unit are provided with for the joinery and its construction with other skeleton unit head and the tail splicings.
Scheme 2：Skeleton unit according to scheme 1, the termination of the skeleton unit with for adjacent skeleton list
The clinch of the termination overlap joint of unit, the joinery and its construction is the joinery and its construction for including the clinch.
Scheme 3：Skeleton unit according to scheme 2, the termination of one of skeleton unit are provided with T-shaped groove, adjacent
The termination of skeleton unit is provided with the projection that shape is coincide with the T-shaped groove, and the T-shaped groove and T-shaped projection are along skeleton
Axially extending and in the middle part of the radial direction of corresponding termination, the joinery and its construction is raised by the T-shaped and T-shaped groove is formed.
Scheme 4：Luo-coil skeleton according to scheme 3, the two ends of each skeleton unit are respectively equipped with the T-shaped
Groove and the T-shaped are raised.
In the present invention, the technical scheme of Luo-coil employing is：
Scheme 1：Luo-coil, including the skeleton and coil of annular, the skeleton include more than two sections skeleton units, each section of skeleton
Unit head and the tail are spliced to form the skeleton, and stitching portion is connected using joinery and its construction.
Scheme 2：Luo-coil according to scheme 1, the termination of the skeleton unit with for adjacent skeleton list
The clinch of the termination overlap joint of unit, the joinery and its construction is the joinery and its construction for including the clinch.
Scheme 3：Luo-coil according to scheme 2, the termination of one of skeleton unit are provided with T-shaped groove, adjacent
The T-shaped that the termination of skeleton unit is provided with shape with the groove coincide is raised, and the T-shaped groove and T-shaped projection are along skeleton
Axially extending and in the middle part of the radial direction of corresponding termination, the joinery and its construction is raised by the T-shaped and T-shaped groove is formed.
Scheme 4：Luo-coil according to scheme 3, each skeleton unit shape are identical, the two ends of each skeleton unit
It is respectively equipped with the T-shaped groove and the T-shaped is raised.
Scheme 5：Luo-coil according to scheme 1 or 2 or 3, filled with viscous between the two ends of the joinery and its construction
Mixture.
In the present invention, the technical scheme of the skeleton manufacture method employing of Luo-coil is：
Scheme 1：The skeleton manufacture method of Luo-coil, the skeleton manufacture method include the bone that two terminations are had joinery and its construction
The step of frame unit is spliced to form the complete skeleton of annular by joinery and its construction head and the tail.
Scheme 2：Skeleton manufacture method according to scheme 1, the termination of the skeleton unit has to be used for and adjacent bone
The clinch of the termination overlap joint of frame unit, the joinery and its construction is the joinery and its construction for including the clinch.
Scheme 3：Skeleton manufacture method according to scheme 2, the termination of one of skeleton unit are provided with T-shaped groove,
The T-shaped that the termination of adjacent skeleton unit is provided with shape with the groove coincide is raised, and the T-shaped groove and T-shaped projection are along bone
Frame axially extending in the middle part of the radial direction of corresponding termination, the joinery and its construction is raised by the T-shaped and T-shaped groove is formed,
Each skeleton unit splices along the axial direction of skeleton.
Scheme 4：Skeleton manufacture method according to scheme 3, each skeleton unit shape are identical, and the two of each skeleton unit
Termination is respectively equipped with the T-shaped groove and the T-shaped is raised.
Scheme 5：Skeleton manufacture method according to scheme 1 or 2 or 3, the skeleton manufacture method are additionally included in described
Between the two ends of joinery and its construction the step of filling adhesive.
Beneficial effect：The present invention adopts the skeleton of above-mentioned technical proposal, Luo-coil to include more than two sections skeleton units, respectively
Section skeleton unit head and the tail are spliced to form the skeleton, and stitching portion is connected using joinery and its construction, is integrally machined compared to existing
Mode, makes the size of workpiece be reduced to the one of original some points, is easy to processing, can save die sinking, Master Cost, so as to
Enough lower difficulty of processing and reduce production cost.Meanwhile, Luo-coil skeleton in the present invention different from open type Rogowski coil
Opening need not be opened using joinery and its construction, Stability Analysis of Structures after the completion of splicing ensure that the stable performance of current transformer.
Further, the termination of the skeleton unit with for adjacent skeleton unit termination overlap joint clinch,
The joinery and its construction is the joinery and its construction for including the clinch, and compared with the not joinery and its construction with clinch, Tenon is complete
It is more stable into rear structure, stitching portion can be avoided to loosen the impact to Luo-coil performance.
Further, the termination of one of skeleton unit is provided with T-shaped groove, and the termination of adjacent skeleton unit is provided with shape
The T-shaped projection coincideing with the groove, the T-shaped groove and T-shaped projection are along the axially extending of skeleton and positioned at corresponding termination
Radial direction in the middle part of, the joinery and its construction is raised by the T-shaped and T-shaped groove is formed, raised using T-shaped and the connection of T-shaped groove is strong
Degree is high, and stability is strong, easy to connect, and the T-shaped groove and T-shaped projection are along the axially extending of skeleton and positioned at corresponding termination
Radial direction in the middle part of, be easy to two skeleton units axially to be spliced along skeleton, it is easy to operate.
Further, adhesive is filled between the two ends of the joinery and its construction, auxiliary bonding is played by adhesive
Effect, it is to avoid Tenon is disengaged, while wire can be avoided to enter the gap of joinery and its construction, preferably improving stability.
Further, each skeleton unit shape is identical, the two ends of each skeleton unit be respectively equipped with the T-shaped groove and
The T-shaped is raised, so only need to produce a form of skeleton unit, is easy to processing, low cost.Preferably, skeleton is by two
Skeleton unit is formed, and is easy to splicing, and splicing construction is few, Stability Analysis of Structures.
Description of the drawings
Fig. 1 is the structural representation of one embodiment of the skeleton of Luo-coil in the present invention；
Fig. 2 is the structural representation of Fig. 1 middle skeleton units；
Fig. 3 is partial enlarged drawing at the A of Fig. 2；
Fig. 4 is partial enlarged drawing at the B of Fig. 2；
Fig. 5 is the top view of Fig. 2.
In figure, each reference is corresponding entitled：1- skeletons, 2- skeleton units, 3- grooves, 4- are raised.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the present invention are described further.
In the present invention, one embodiment of the skeleton of Luo-coil lands tank for 500kV and the above as shown in Fig. 1 ~ Fig. 5
Electronic current mutual inductor in formula isolation circuit breakers, skeleton 1 are made using nonferromugnetic material, including two semicircular bones
Frame unit 2, the shape of two skeleton units 2 are identical, and the two ends of each skeleton unit 2 are respectively equipped with groove 3 and raised 4, recessed
The shape of groove 3 and projection 4 is T-shaped, and groove 3 and raised 4 is along the axially extending of skeleton 1 and in the radial direction of corresponding termination
Portion, and the both sides cell wall of groove 3 and projection 4 constitute the knot of the Tenon with clinch along the clinch that is formed radially of skeleton 1
Structure.In order to avoid stress concentration, the outer wall of the inwall and projection 4 of groove 3 adopts smooth structure.In order to ensure that splicing is firm,
The stitching portion of projection 4 and groove 3 is filled with adhesive, also, the stitching portion of projection 4 and groove 3 adopts interference fit, and tolerance can
Require with reference to interference fit tolerance and GB/T1804-f.2 head and the tail of two above skeleton unit splice, you can form complete circle
Skeleton 1.
During making, projection 4 and groove 3 can be machined into engraving, processed using finishing, it is ensured that the surface of skeleton 1
It is smooth, it is to avoid during wound around coil, wire is impacted into the gap of faying face to the performance of Luo-coil.
During in the present invention, one embodiment of the skeleton unit of Luo-coil is the embodiment of skeleton 1 of above-mentioned Luo-coil
Skeleton unit 2, no longer describe in detail herein.In the present invention, one embodiment of Luo-coil includes the skeleton and line of annular
Circle, its middle skeleton is the skeleton 1 in above-described embodiment, is no longer described in detail herein.The skeleton manufacture of Luo-coil in the present invention
One embodiment of method：Skeleton unit 2 in the adopted above-described embodiment of the method, during manufacture skeleton 1, two terminations is had
The above-mentioned skeleton unit 2 for having joinery and its construction is spliced to form the complete skeleton 1 of annular, splicing by joinery and its construction head and the tail
Before, bonding agent is smeared respectively on the groove and projection for forming joinery and its construction.In other embodiments, it is also possible to do not use
Bonding agent, or the bonding agent that well can be penetrated in seam in joint painting again later in groove and male cooperation.
In the above-described embodiments, joinery and its construction is the joinery and its construction with clinch, and is by the groove 3 and T-shaped of T-shaped
Projection 4 formed.In other embodiments of the invention, joinery and its construction can also replace with other Tenon forms, for example, spelling
Tenon post is set on the section of the side skeleton unit 2 for meeting place, mortise is set on the section of opposite side skeleton unit 2, by tenon post
Riveting is realized in cooperation with mortise；For another example, hierarchic structure is set in the termination of the side skeleton unit 2 of stitching portion, in opposite side
The termination of skeleton unit 2 is arranged and above-mentioned hierarchic structure fastens the corresponding hierarchic structure of splicing, using pin along the footpath of skeleton 1
To the part that hierarchic structure at two is mutually overlapped is penetrated simultaneously, realize that Tenon is fixed；For another example, will be the T-shaped in above-described embodiment recessed
Groove 3 and T-shaped projection 4 are arranged to the form radially extended along skeleton 1, at this moment can be by the skeleton unit 2 of two semicircles radially
It is spliced to form Tenon to fix；For another example, the projection and groove in embodiment is set to into the shape such as circular arc, swallow-tail form, circle, square
Formula.It is pointed out that joinery and its construction is not limited to above-mentioned several forms, in other embodiments, the concrete form of Tenon can
To select other forms of the prior art.In addition, in other embodiments, skeleton 1 can also have more than three sections of skeleton list
Unit 2 is spliced to form, and the length of each section of skeleton unit 2 can be with difference.Furthermore, it is in other embodiments, even for by more than four sections
The skeleton 1 of several sections of the composition of skeleton unit 2, it is also possible to which the joinery and its construction at 2 two ends of skeleton unit is disposed as groove 3 is adjacent
The joinery and its construction at 2 two ends of skeleton unit is set to raised 4, can equally realize the splicing of skeleton 1.
Claims (10)
1. Luo-coil skeleton, it is characterised in that：The skeleton includes more than two sections skeleton units, and each section of skeleton unit head and the tail are spelled
Connect and form the skeleton, stitching portion is connected using joinery and its construction.
2. Luo-coil skeleton according to claim 1, it is characterised in that：The termination of the skeleton unit with for
The clinch of the termination overlap joint of adjacent skeleton unit, the joinery and its construction is the joinery and its construction for including the clinch.
3. Luo-coil skeleton according to claim 2, it is characterised in that：The termination of one of skeleton unit is provided with T
Connected in star, the termination of adjacent skeleton unit are provided with the T-shaped projection that shape is coincide with the groove, and the T-shaped groove and T-shaped are raised
Along the axially extending of skeleton and in the middle part of the radial direction of corresponding termination, the joinery and its construction is by T-shaped projection and T-shaped groove
Formed.
4. Luo-coil skeleton according to claim 3, it is characterised in that：Each skeleton unit shape is identical, each skeleton
The two ends of unit are respectively equipped with the T-shaped groove and the T-shaped is raised.
5. the Luo-coil skeleton according to claim 1 or 2 or 3 or 4, it is characterised in that：The two ends of the joinery and its construction
Adhesive is filled between head.
6. the skeleton unit of Luo-coil, it is characterised in that：The skeleton unit is used to form wherein the one of Luo-coil skeleton
Section segmental arc, the two ends of skeleton unit are provided with for the joinery and its construction with other skeleton unit head and the tail splicings.
7. skeleton unit according to claim 6, it is characterised in that：The termination of the skeleton unit with for it is adjacent
The clinch of the termination overlap joint of skeleton unit, the joinery and its construction is the joinery and its construction for including the clinch.
8. skeleton unit according to claim 7, it is characterised in that：It is recessed that the termination of one of skeleton unit is provided with T-shaped
Groove, the termination of adjacent skeleton unit are provided with the projection that shape is coincide with the T-shaped groove, the T-shaped groove and the raised edge of T-shaped
Skeleton axially extending in the middle part of the radial direction of corresponding termination, the joinery and its construction is by the T-shaped is raised and T-shaped groove type
Into.
9. the skeleton and coil of Luo-coil, including annular, it is characterised in that：The skeleton is any in claim 15
Skeleton described in one.
10. the skeleton manufacture method of Luo-coil, it is characterised in that：The skeleton manufacture method includes for two terminations thering is Tenon
The step of skeleton unit of structure is spliced to form the complete skeleton of annular by joinery and its construction head and the tail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929090.1A CN106526276A (en) | 2016-10-31 | 2016-10-31 | Rogowski coil and skeleton, skeleton unit and skeleton manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929090.1A CN106526276A (en) | 2016-10-31 | 2016-10-31 | Rogowski coil and skeleton, skeleton unit and skeleton manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106526276A true CN106526276A (en) | 2017-03-22 |
Family
ID=58292331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610929090.1A Pending CN106526276A (en) | 2016-10-31 | 2016-10-31 | Rogowski coil and skeleton, skeleton unit and skeleton manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN106526276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110181232A (en) * | 2019-05-30 | 2019-08-30 | 兰州科近泰基新技术有限责任公司 | A kind of processing method being bent skewed helix skeleton |
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Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Applicant after: STATE GRID CORPORATION OF CHINA Applicant after: XJ Group Corp. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Applicant before: State Grid Corporation of China Applicant before: XJ Group Corp. |
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Effective date of registration: 20230818 Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Applicant after: STATE GRID CORPORATION OF CHINA Applicant after: XJ Group Corp. Applicant after: XJ ELECTRIC Co.,Ltd. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Applicant before: STATE GRID CORPORATION OF CHINA Applicant before: XJ Group Corp. |