CN107275065A - It is a kind of to be easily installed the current transformer used - Google Patents
It is a kind of to be easily installed the current transformer used Download PDFInfo
- Publication number
- CN107275065A CN107275065A CN201710688824.6A CN201710688824A CN107275065A CN 107275065 A CN107275065 A CN 107275065A CN 201710688824 A CN201710688824 A CN 201710688824A CN 107275065 A CN107275065 A CN 107275065A
- Authority
- CN
- China
- Prior art keywords
- transformer
- post
- mutual inductor
- housing cylinder
- cylinder wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
- H01F2038/305—Constructions with toroidal magnetic core
Abstract
The invention discloses a kind of current transformer for being easily installed and using; including transformer casing and the first mutual inductor interstar connection post and the second mutual inductor interstar connection post; the transformer casing includes protection outer cover body and protection closure head, and the protection outer cover body includes shell annular bottom wall, inner side housing cylinder wall, outside housing cylinder wall；The first mutual inductor interstar connection post includes cylindrical flow-guiding bar and post is drawn in the wiring of L-shaped structure, one end of the cylindrical flow-guiding bar is fixedly connected with the wiring and draws post, the other end of the cylindrical flow-guiding bar is provided with binding post screw, and the binding post screw and the cylindrical flow-guiding bar are coaxial；The second mutual inductor interstar connection post is provided with the binding post bolt for coordinating the binding post screw, and the binding post bolt and the second mutual inductor interstar connection post are coaxial.Primary side binding post of the present invention is U-shaped and primary side binding post is easy for installation, and operating efficiency is high and current transformer casing will not be caused to rupture.
Description
Technical field
The present invention relates to a kind of accuracy transformer product technical field, particularly a kind of to be easily installed the electric current used mutual
Sensor.
Background technology
Current transformer is mainly made up of in structure the iron core closed, first side winding and secondary side winding, and it is once
Side umber of turn seldom, is gone here and there in the circuit for the electric current for needing to measure, therefore whole electric currents that it often has circuit flow through, secondly
Secondary side umber of turn is relatively more, is serially connected in measuring instrumentss and protective loop, and operationally, its secondary side is returned current transformer
Road is to close all the time, therefore measuring instrumentss and the impedance very little of protective loop series coil, the working condition of current transformer
Close to short circuit；Primary side high current is converted into secondary side low current to carry out operation or measurement by current transformer.
Current transformer external protective structures of the prior art are generally insulated by the insulation crust and capping of one end open
The insulating top cover at shell collar extension end is constituted, and insulating top cover is generally connected with insulation crust by the way of gluing connects or is interference fitted
Fixed, gluing connects the problem of there is long processing time and easily cohered in the presence of local leakage, once during interference fit insulating top cover or
Insulation crust local deformation, then cause connection insecure, so that external protective structures lose protecting effect；In addition routinely once
Side joint terminal can make two binding posts close to each other for the current transformer of U-shaped, consequently facilitating transformer is installed and used,
But above-mentioned transformer process is more complicated, it is necessary to first squeeze into primary side binding post, and primary side binding post is then bent again, because
This operating efficiency is relatively low and is easily caused transformer casing rupture.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of current transformer for being easily installed and using, once
Side joint terminal is U-shaped and primary side binding post is easy for installation, and operating efficiency is high and current transformer casing will not be caused to rupture.
The technical solution adopted for the present invention to solve the technical problems is：
It is a kind of to be easily installed the current transformer used, including transformer casing and the first mutual inductor interstar connection post and the second transformer
Binding post, the transformer casing includes protection outer cover body and protection closure head, and the protection outer cover body includes shell
Annular bottom wall, lower end connect the inner side housing cylinder wall of the shell annular bottom wall inside edge, lower end and connect the outer girdle
The outside housing cylinder wall at shape bottom wall outer edge；The shell annular bottom wall, the inner side housing cylinder wall and the outside
Housing cylinder wall is coaxial；The first mutual inductor interstar connection post includes cylindrical flow-guiding bar and post, institute are drawn in the wiring of L-shaped structure
The one end for stating cylindrical flow-guiding bar is fixedly connected with the wiring extraction post, and the other end of the cylindrical flow-guiding bar is provided with wiring
Post screw, the binding post screw and the cylindrical flow-guiding bar are coaxial；The second mutual inductor interstar connection post is provided with cooperation institute
The binding post bolt of binding post screw is stated, the binding post bolt and the second mutual inductor interstar connection post are coaxial.
As the further improvement of above-mentioned technical proposal, the diameter of the cylindrical flow-guiding bar and the inner side housing cylinder
The internal diameter of wall is identical；The first spacing preiection ring, first spacing preiection are coaxially arranged with the second mutual inductor interstar connection post
The external diameter of ring is more than the internal diameter of the inner side housing cylinder wall；The second spacing preiection is provided with the first mutual inductor interstar connection post
Ring, the external diameter of the first spacing preiection ring is more than the internal diameter of the inner side housing cylinder wall, the second spacing preiection ring with
The cylindrical flow-guiding bar is coaxial, and the second spacing preiection ring is arranged at the cylindrical flow-guiding bar and the wiring is drawn
The junction of post.
It is described mutual as the further improvement of above-mentioned technical proposal, in addition to transformer core and transformer secondary winding
Sensor magnetic core is annular, and the transformer secondary winding is wrapped in the transformer core surface；It is wound with the transformer
The transformer core of secondary winding is arranged between the inner side housing cylinder wall and the outside housing cylinder wall, and institute
State shell annular bottom wall and the protection closure head and be located at the transformer for being wound with the transformer secondary winding respectively
The axial two ends of magnetic core.
As the further improvement of above-mentioned technical proposal, the transformer secondary winding is provided with extraction wiring, the guarantor
The wiring fairlead passed through for the extraction wiring is provided with shield closure head.
As the further improvement of above-mentioned technical proposal, the transformer core includes magnetic core isolation shell and is arranged at described
Magnetic band winding ring inside magnetic core isolation shell, the magnetic core isolation shell includes insulation inner casing body and insulation inner casing top cover,
Medial surface, lateral surface and the axial both ends of the surface of the magnetic band winding ring are provided with silicone resin adhesive.
Compared with prior art, the beneficial effects of the invention are as follows：
It is provided by the present invention it is a kind of be easily installed the current transformer used, primary side binding post is U-shaped and primary side wiring
Post is easy for installation, and operating efficiency is high and current transformer casing will not be caused to rupture；And silicone resin adhesive can both play buffering
Effect, has cohesive action again, and with preferable heat resistance and sealing, therefore insulate inner casing body and insulation inner casing top cover
Coordinate convenient and swift；Limited by the first spacing preiection ring on the first mutual inductor interstar connection post and the second mutual inductor interstar connection post and second
Position protruding ring grips effect, makes protection outer cover body and protection closure head tight fit, so as to fully protecting
Protect internal electronic device.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structural representation for being easily installed the current transformer used of the present invention.
Embodiment
Reference picture 1, Fig. 1 is the structural representation of a specific embodiment of the invention.
As shown in figure 1, a kind of be easily installed the current transformer used, including transformer casing and the first mutual inductor interstar connection
Post and the second mutual inductor interstar connection post 30, the transformer casing include protection outer cover body and protection closure head 11, described to protect
Protecting outer cover body includes shell annular bottom wall 12, the inner side housing cylinder of the lower end connection inside edge of shell annular bottom wall 12
Wall 13, lower end connect the outside housing cylinder wall 14 of the outer ledge of shell annular bottom wall 12；The shell annular bottom wall 12,
The inner side housing cylinder wall 13 and the outside housing cylinder wall 14 are coaxial；The first mutual inductor interstar connection post includes cylinder
Post 22 is drawn in the wiring of shape flow-guiding bar 21 and L-shaped structure, and one end of the cylindrical flow-guiding bar 21 is fixedly connected with the wiring and drawn
Go out post 22, the other end of the cylindrical flow-guiding bar 21 is provided with binding post screw 23, the binding post screw 23 and the circle
Cylindricality flow-guiding bar 21 is coaxial；The second mutual inductor interstar connection post 30 is provided with the binding post bolt for coordinating the binding post screw 23
31, the binding post bolt 31 and the second mutual inductor interstar connection post 30 are coaxial.
As preferred, the diameter of the cylindrical flow-guiding bar 21 is identical with the internal diameter of the inner side housing cylinder wall 13；
The first spacing preiection ring 32, the external diameter of the first spacing preiection ring 32 are coaxially arranged with the second mutual inductor interstar connection post 30
More than the internal diameter of the inner side housing cylinder wall 13；The second spacing preiection ring 24 is provided with the first mutual inductor interstar connection post,
The external diameter of the first spacing preiection ring 32 is more than the internal diameter of the inner side housing cylinder wall 13, the second spacing preiection ring 24
It is coaxial with the cylindrical flow-guiding bar 21, and the second spacing preiection ring 24 is arranged at the cylindrical flow-guiding bar 21 and described
The junction of post 22 is drawn in wiring.
As preferred, in addition to transformer core and transformer secondary winding 51, the transformer core is annular,
The transformer secondary winding 51 is wrapped in the transformer core surface；It is wound with the described of the transformer secondary winding 51
Transformer core is arranged between the inner side housing cylinder wall 13 and the outside housing cylinder wall 14, and shell annular
Bottom wall 12 and the protection closure head 11 are located at the transformer core for being wound with the transformer secondary winding 51 respectively
Axial two ends.The transformer secondary winding 51 is provided with extraction wiring 52, the protection closure head 11 and is provided with confession
It is described to draw the wiring fairlead 15 that wiring 52 is passed through.The transformer core includes magnetic core isolation shell and is arranged at the magnetic core
Magnetic band winding ring 41 inside insulation shell, the magnetic core isolation shell includes insulation inner casing body 42 and insulation inner casing top cover
43, medial surface, lateral surface and the axial both ends of the surface of the magnetic band winding ring 41 are provided with silicone resin adhesive 44.
During assembling, the medial surface, lateral surface and axial both ends of the surface for winding ring 41 in the magnetic band are coated with one layer of silicon
Resin adhesive 44, is then encapsulated, the silicones gluing with the insulation inner casing body 42 and the insulation inner casing top cover 43
Agent 44 can both play cushioning effect, have cohesive action again, and with preferable heat resistance and sealing, therefore the insulation
Shell body 42 and the insulation inner casing top cover 43 coordinate convenient and swift；Then the transformer secondary winding 51 is wound, then is encapsulated
The protection outer cover body and protection closure head 11, then installs the first mutual inductor interstar connection post and described second mutual
Sensor binding post 30, fixes described by the clamping action of the first spacing preiection ring 32 and the second spacing preiection ring 24
Protect outer cover body and the protection closure head 11.
The preferable implementation to the present invention is illustrated above, certainly, and the present invention can also be used and above-mentioned implementation
The different form of mode, the equivalent conversion that those skilled in the art are made on the premise of without prejudice to spirit of the invention
Or corresponding change, it should all belong in protection scope of the present invention.
Claims (5)
1. a kind of be easily installed the current transformer used, it is characterised in that：Including transformer casing and the first mutual inductor interstar connection
Post and the second mutual inductor interstar connection post（30）, the transformer casing is including protection outer cover body and protects closure head（11）, institute
Stating protection outer cover body includes shell annular bottom wall（12）, lower end connect the shell annular bottom wall（12）The inner side of inside edge
Housing cylinder wall（13）, lower end connect the shell annular bottom wall（12）The outside housing cylinder wall of outer ledge（14）；It is described
Shell annular bottom wall（12）, the inner side housing cylinder wall（13）With the outside housing cylinder wall（14）It is coaxial；Described
One mutual inductor interstar connection post includes cylindrical flow-guiding bar（21）Post is drawn in wiring with L-shaped structure（22）, the cylindrical flow-guiding bar
（21）One end be fixedly connected with the wiring and draw post（22）, the cylindrical flow-guiding bar（21）The other end be provided with binding post
Screw（23）, the binding post screw（23）With the cylindrical flow-guiding bar（21）Coaxially；The second mutual inductor interstar connection post
（30）It is provided with the cooperation binding post screw（23）Binding post bolt（31）, the binding post bolt（31）With described second
Mutual inductor interstar connection post（30）Coaxially.
2. a kind of the current transformer used is easily installed according to claim 1, it is characterised in that：The cylinder is led
Flow rod（21）Diameter and the inner side housing cylinder wall（13）Internal diameter it is identical；The second mutual inductor interstar connection post（30）It is upper same
Axle is provided with the first spacing preiection ring（32）, the first spacing preiection ring（32）External diameter be more than the inner side housing cylinder wall
（13）Internal diameter；The second spacing preiection ring is provided with the first mutual inductor interstar connection post（24）, the first spacing preiection ring
（32）External diameter be more than the inner side housing cylinder wall（13）Internal diameter, the second spacing preiection ring（24）With the cylinder
Flow-guiding bar（21）Coaxially, and the second spacing preiection ring（24）It is arranged at the cylindrical flow-guiding bar（21）Draw with the wiring
Go out post（22）Junction.
3. a kind of the current transformer used is easily installed according to claim 1, it is characterised in that：Also include transformer
Magnetic core and transformer secondary winding（51）, the transformer core is annular, the transformer secondary winding（51）It is wrapped in
The transformer core surface；It is wound with the transformer secondary winding（51）The transformer core be arranged at the inner side
Housing cylinder wall（13）With the outside housing cylinder wall（14）Between, and the shell annular bottom wall（12）Outside the protection
Shell top cover（11）It is located at respectively and is wound with the transformer secondary winding（51）The transformer core axial two ends.
4. a kind of the current transformer used is easily installed according to claim 3, it is characterised in that：The transformer two
Secondary winding（51）It is provided with extraction wiring（52）, the protection closure head（11）On be provided with for the extraction wiring（52）Wear
The wiring fairlead crossed（15）.
5. a kind of the current transformer used is easily installed according to claim 1, it is characterised in that：The transformer magnetic
Core includes magnetic core isolation shell and the magnetic band being arranged inside magnetic core isolation shell winding ring（41）, the magnetic core isolation shell
Including insulation inner casing body（42）With insulation inner casing top cover（43）, the magnetic band winding ring（41）Medial surface, lateral surface
And axial both ends of the surface are provided with silicone resin adhesive（44）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710688824.6A CN107275065B (en) | 2017-08-13 | 2017-08-13 | It is a kind of to be easily installed the current transformer used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710688824.6A CN107275065B (en) | 2017-08-13 | 2017-08-13 | It is a kind of to be easily installed the current transformer used |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107275065A true CN107275065A (en) | 2017-10-20 |
| CN107275065B CN107275065B (en) | 2019-04-23 |
Family
ID=60077385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710688824.6A Active CN107275065B (en) | 2017-08-13 | 2017-08-13 | It is a kind of to be easily installed the current transformer used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107275065B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB414261A (en) * | 1932-12-19 | 1934-08-02 | Asea Ab | Current transformer of coil type |
| EP0037796B1 (en) * | 1980-03-27 | 1984-02-29 | Siemens Aktiengesellschaft | Current transformer having fluid insulant |
| CN2074932U (en) * | 1990-06-08 | 1991-04-10 | 沈阳变压器厂 | Current mutual-inductor |
| CN204215890U (en) * | 2014-10-21 | 2015-03-18 | 徐涛 | Current transformer |
| CN205104356U (en) * | 2015-11-11 | 2016-03-23 | 江苏苏爱尔电力设备有限公司 | Current inducer |
| CN105977005A (en) * | 2016-06-12 | 2016-09-28 | 嘉兴威士顿电子科技有限公司 | Assembly method of current transformer and current transformer |
| CN106783115A (en) * | 2017-02-13 | 2017-05-31 | 安徽君华舜义恩佳非晶材料有限公司 | A kind of anti-DC component current transformer of double-iron core |
-
2017
- 2017-08-13 CN CN201710688824.6A patent/CN107275065B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB414261A (en) * | 1932-12-19 | 1934-08-02 | Asea Ab | Current transformer of coil type |
| EP0037796B1 (en) * | 1980-03-27 | 1984-02-29 | Siemens Aktiengesellschaft | Current transformer having fluid insulant |
| CN2074932U (en) * | 1990-06-08 | 1991-04-10 | 沈阳变压器厂 | Current mutual-inductor |
| CN204215890U (en) * | 2014-10-21 | 2015-03-18 | 徐涛 | Current transformer |
| CN205104356U (en) * | 2015-11-11 | 2016-03-23 | 江苏苏爱尔电力设备有限公司 | Current inducer |
| CN105977005A (en) * | 2016-06-12 | 2016-09-28 | 嘉兴威士顿电子科技有限公司 | Assembly method of current transformer and current transformer |
| CN106783115A (en) * | 2017-02-13 | 2017-05-31 | 安徽君华舜义恩佳非晶材料有限公司 | A kind of anti-DC component current transformer of double-iron core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107275065B (en) | 2019-04-23 |
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Effective date of registration: 20190322 Address after: 102200 Beijing Changping District Science and Technology Park, Zhenxing Road, No. 2 Courtyard, Building 5, East Half Building, 6 Floors 601 Applicant after: Beijing Dipper Galaxy Technology Co., Ltd. Address before: 241080 No. 1 Xiajiahu Road, Sanshan Economic Development Zone, Wuhu City, Anhui Province Applicant before: Anhui Junhua Shunyi Enjia Amorphous Materials Co., Ltd. |
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