CN107464658B - A kind of current transformer convenient for quick assembling - Google Patents
A kind of current transformer convenient for quick assembling Download PDFInfo
- Publication number
- CN107464658B CN107464658B CN201710669316.3A CN201710669316A CN107464658B CN 107464658 B CN107464658 B CN 107464658B CN 201710669316 A CN201710669316 A CN 201710669316A CN 107464658 B CN107464658 B CN 107464658B
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- CN
- China
- Prior art keywords
- housing cylinder
- cylinder wall
- mutual inductor
- annular bottom
- bottom 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.)
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Classifications
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- 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
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- 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
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- 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
- H01F27/022—Encapsulation
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- 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
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a kind of current transformers convenient for quick assembling; including transformer casing and mutual inductor primary connection column; the transformer casing includes protection outer cover body and protection closure head, and the protection outer cover body includes that shell annular bottom wall, lower end connect the inside housing cylinder wall of shell annular bottom wall inside edge, lower end connects the outside housing cylinder wall of the shell annular bottom wall outer ledge；The shell annular bottom wall, the inside housing cylinder wall and the outside housing cylinder wall are coaxial；The mutual inductor primary connection column includes cylindrical flow-guiding bar and the flat wire plate positioned at the cylindrical flow-guiding bar both ends, the cylinder flow-guiding bar diameter is identical as the internal diameter of the inside housing cylinder wall, and the width of the flat wire plate is greater than the internal diameter of the inside housing cylinder wall.It is convenient, rapid that the present invention assembles insulating top cover with insulation crust, and the connectivity robustness of insulating top cover and insulation crust is good.
Description
Technical field
It is especially a kind of mutual convenient for the electric current of quick assembling the present invention relates to a kind of accuracy mutual inductor product technical field
Sensor.
Background technique
Current transformer is the equipment of scaling transformation electric current, is mainly used for high current scaling transformation into the small electricity of standard
Stream, in order to realize the standardization or miniaturization of measuring instrumentss, protection equipment and automatic control equipment.
Current transformer is mainly made of the iron core, first side winding and the secondary side winding that are closed in structure, primary
Side umber of turn is seldom, goes here and there in the route for the electric current for needing to measure, therefore it often has whole electric currents of route to flow through, secondly
Secondary side umber of turn is relatively more, is serially connected in measuring instrumentss and protective loop, and at work, its secondary side returns current transformer
Road is closure, therefore the impedance very little of measuring instrumentss and protective loop series coil, the working condition of current transformer always
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 in the prior art are usually insulated by insulation crust open at one end and capping
The insulating top cover at shell collar extension end is constituted, and insulating top cover generallys use the mode that gluing connects or is interference fitted with insulation crust and connect
Fixed, gluing, which connects, to be had long processing time and is easy to have part leakage to cohere, once when interference fit insulating top cover or
Insulation crust local deformation then causes to be not connected firmly, so that external protective structures be made to lose protecting effect.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of current transformer convenient for quick assembling, make absolutely
Edge top cover and insulation crust assembling are convenient, rapid, and the connectivity robustness of insulating top cover and insulation crust is good.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of current transformer convenient for quick assembling, including transformer casing and mutual inductor primary connection column, it is described mutual
Sensor shell includes protection outer cover body and protection closure head, and the protection outer cover body includes shell annular bottom wall, lower end
Connect the inside housing cylinder wall of shell annular bottom wall inside edge, lower end connects the shell annular bottom wall outer ledge
Outside housing cylinder wall；The shell annular bottom wall, the inside housing cylinder wall and the outside housing cylinder wall are same
Axis；The mutual inductor primary connection column includes cylindrical flow-guiding bar and the flat wire positioned at the cylindrical flow-guiding bar both ends
Plate, the cylinder flow-guiding bar diameter is identical as the internal diameter of the inside housing cylinder wall, and the width of the flat wire plate is big
In the internal diameter of the inside housing cylinder wall.
As a further improvement of the above technical scheme, the flat wire plate connects one end of the cylindrical flow-guiding bar
One end for terminal plate fixing end, from the flat wire backboard to the cylindrical flow-guiding bar is terminal plate end, described flat
The width of terminal plate is gradually reduced from middle part to the terminal plate fixing end, and the width of the flat wire plate is from middle part to institute
Terminal plate end is stated also to be gradually reduced.
As a further improvement of the above technical scheme, further include transformer core and mutual inductor secondary winding, it is described mutually
Sensor magnetic core is circular ring shape, and the mutual inductor secondary winding is wrapped in the transformer core surface；It is wound with the mutual inductor
The transformer core of secondary winding is set between the inside housing cylinder wall and the outside housing cylinder wall, and institute
It states shell annular bottom wall and the protection closure head is located at the mutual inductor for being wound with the mutual inductor secondary winding
The axial ends of magnetic core.
As a further improvement of the above technical scheme, the mutual inductor secondary winding is provided with extraction wiring, the guarantor
The wiring fairlead passed through for the extraction wiring is provided on shield closure head；The top, described of the protection closure head
Encapsulation shrink film is enclosed on the outside of the bottom of shell annular bottom wall and the outside housing cylinder wall.
As a further improvement of the above technical scheme, the transformer core includes magnetic core isolation shell and is set to described
Magnetic band inside magnetic core isolation shell winds ring, and the magnetic core isolation shell includes insulation inner casing ontology and insulation inner casing top cover,
Medial surface, lateral surface and the axial ends face of the magnetism band winding ring are provided with silicone resin adhesive.
Compared with prior art, the beneficial effects of the present invention are:
A kind of current transformer convenient for quick assembling provided by the present invention, silicone resin adhesive can both play buffering and make
With, and there is cohesive action, and there is preferable heat resistance and leakproofness, therefore insulate inner casing ontology and insulation inner casing top cover are matched
It closes convenient and efficient；Pass through the fixed protection outer cover body of the position-limiting action at mutual inductor primary connection column both ends and protection closure head；
Finally setting encapsulation shrink film, is fixed and protects again to the edge of protection closure head；In fully protecting
Portion's electronic device.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of structural schematic diagram of current transformer convenient for quick assembling of the present invention.
Specific embodiment
Referring to Fig.1, Fig. 1 is the structural schematic diagram of a specific embodiment of the invention.
As shown in Figure 1, a kind of current transformer convenient for quick assembling, including transformer casing and mutual inductor primary connection
Column, the transformer casing include protection outer cover body and protection closure head 11, and the protection outer cover body includes outer girdle
Shape bottom wall 12, lower end connect the inside housing cylinder wall 13 of 12 inside edge of shell annular bottom wall, lower end connects outside described
The outside housing cylinder wall 14 of 12 outer ledge of shell annular bottom wall；The shell annular bottom wall 12, the inside housing cylinder wall
13 and the outside housing cylinder wall 14 it is coaxial；The mutual inductor primary connection column is including cylindrical flow-guiding bar 21 and is located at institute
State the flat wire plate 22 at cylindrical 21 both ends of flow-guiding bar, cylinder 21 diameter of flow-guiding bar and the inside housing cylinder wall
13 internal diameter is identical, and the width of the flat wire plate 22 is greater than the internal diameter of the inside housing cylinder wall 13.
Specifically, one end that the flat wire plate 22 connects the cylindrical flow-guiding bar 21 is terminal plate fixing end, institute
It is terminal plate end, the width of the flat wire plate 22 that flat wire plate 22, which is stated, backwards to one end of the cylindrical flow-guiding bar 21
It is gradually reduced from middle part to the terminal plate fixing end, and the width of the flat wire plate 22 is from middle part to the terminal plate end
End is also gradually reduced.
Preferably, further including transformer core and mutual inductor secondary winding 31, the transformer core is circular ring shape,
The mutual inductor secondary winding 31 is wrapped in the transformer core surface；It is wound with the described of the mutual inductor secondary winding 31
Transformer core is set between the inside 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 mutual inductor secondary winding 31
Axial ends.The mutual inductor secondary winding 31, which is provided with, draws wiring 32, is provided with confession on the protection closure head 11
The wiring fairlead 15 drawing wiring 32 and passing through；The top of the protection closure head 11, the shell annular bottom wall 12
Bottom and the outside housing cylinder wall 14 outside be enclosed with encapsulation shrink film 16.The transformer core includes that magnetic core is exhausted
Edge shell and the magnetic band being set to inside the magnetic core isolation shell wind ring 41, and the magnetic core isolation shell includes insulation inner casing sheet
Body 42 and insulation inner casing top cover 43, medial surface, lateral surface and the axial ends face of the magnetism band winding ring 41 are respectively provided with
There is silicone resin adhesive 44.
When assembling, one layer of silicon is coated in medial surface, lateral surface and the axial ends face of the magnetic band winding ring 41
Then Resin adhesive 44 is encapsulated, the silicone resin gluing with the insulation inner casing ontology 42 and the insulation inner casing top cover 43
Agent 44 can not only work as a buffer, but also have cohesive action, and have preferable heat resistance and leakproofness, therefore in the insulation
Shell ontology 42 and the insulation inner casing top cover 43 cooperate convenient and efficient；Then the mutual inductor secondary winding 31 is wound, then is encapsulated
The protection outer cover body and the protection closure head 11, then install the mutual inductor primary connection column, by described mutual
The fixed protection outer cover body of the position-limiting action at sensor primary connection column both ends and the protection closure head 11；Finally it is arranged
The encapsulation shrink film 16 is fixed and protects again to the edge of the protection closure head 11.
Preferable implementation of the invention is illustrated above, certainly, the present invention can also use and above-mentioned implementation
The different form of mode, those skilled in the art's made equivalent transformation on the premise of without prejudice to spirit of the invention
Or corresponding change, all it should belong in protection scope of the present invention.
Claims (3)
1. a kind of current transformer convenient for quick assembling, it is characterised in that: including transformer casing and mutual inductor primary connection
Column, the transformer casing include protection outer cover body and protection closure head (11), and the protection outer cover body includes shell
Annular bottom wall (12), lower end connect the inside housing cylinder wall (13) of shell annular bottom wall (12) inside edge, lower end connects
Connect the outside housing cylinder wall (14) of shell annular bottom wall (12) outer ledge；It is the shell annular bottom wall (12), described
Inside housing cylinder wall (13) and the outside housing cylinder wall (14) are coaxial；The mutual inductor primary connection column includes cylinder
Shape flow-guiding bar (21) and the flat wire plate (22) for being located at described cylindrical flow-guiding bar (21) both ends, the cylinder flow-guiding bar
(21) diameter is identical as the internal diameter of the inside housing cylinder wall (13), and the width of the flat wire plate (22) is greater than in described
The internal diameter of side housing cylinder wall (13)；One end of flat wire plate (22) the connection cylindrical flow-guiding bar (21) is wiring
Plate fixing end, the flat wire plate (22) is terminal plate end backwards to one end of the cylindrical flow-guiding bar (21), described flat
The width of flat terminal plate (22) is gradually reduced from middle part to the terminal plate fixing end, and the width of the flat wire plate (22)
It is also gradually reduced from middle part to the terminal plate end, wherein the terminal plate fixing end only supports the protection closure head respectively
(11) and the shell annular bottom wall (12)；
It further include transformer core, the transformer core includes magnetic core isolation shell and is set to inside the magnetic core isolation shell
Magnetic band winds ring (41), and the magnetic core isolation shell includes insulation inner casing ontology (42) and insulate inner casing top cover (43), described
Medial surface, lateral surface and the axial ends face of magnetic band winding ring (41) are provided with silicone resin adhesive (44).
2. a kind of current transformer convenient for quick assembling according to claim 1, it is characterised in that: the mutual inductor magnetic
Core is circular ring shape, and the current transformer further includes mutual inductor secondary winding (31), mutual inductor secondary winding (31) winding
On the transformer core surface；The transformer core for being wound with the mutual inductor secondary winding (31) is set in described
Between side housing cylinder wall (13) and the outside housing cylinder wall (14), and the shell annular bottom wall (12) and the protection
Closure head (11) is located at the axial ends for being wound with the transformer core of the mutual inductor secondary winding (31).
3. a kind of current transformer convenient for quick assembling according to claim 2, it is characterised in that: the mutual inductor two
Secondary winding (31), which is provided with, draws wiring (32), is provided on the protection closure head (11) and wears for the extraction wiring (32)
The wiring fairlead (15) crossed；The top of protection closure head (11), the bottom of the shell annular bottom wall (12) and institute
It states and is enclosed with encapsulation shrink film (16) on the outside of outside housing cylinder wall (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669316.3A CN107464658B (en) | 2017-08-08 | 2017-08-08 | A kind of current transformer convenient for quick assembling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669316.3A CN107464658B (en) | 2017-08-08 | 2017-08-08 | A kind of current transformer convenient for quick assembling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107464658A CN107464658A (en) | 2017-12-12 |
| CN107464658B true CN107464658B (en) | 2019-01-22 |
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ID=60547406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710669316.3A Active CN107464658B (en) | 2017-08-08 | 2017-08-08 | A kind of current transformer convenient for quick assembling |
Country Status (1)
| Country | Link |
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| CN (1) | CN107464658B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777225B (en) * | 2018-05-18 | 2024-02-20 | 河南森源电气股份有限公司 | Wiring cover positioning tool |
| CN108922735A (en) * | 2018-07-20 | 2018-11-30 | 芜湖君华材料有限公司 | A kind of amorphous alloy magnetic core of resistance to TRANSIENT HIGH TEMPERATURE |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09190932A (en) * | 1996-01-08 | 1997-07-22 | Tamura Seisakusho Co Ltd | Reactor |
| JP2001035729A (en) * | 1999-07-26 | 2001-02-09 | Mitsumi Electric Co Ltd | Board-mounting coil device |
| 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
- 2017-08-08 CN CN201710669316.3A patent/CN107464658B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09190932A (en) * | 1996-01-08 | 1997-07-22 | Tamura Seisakusho Co Ltd | Reactor |
| JP2001035729A (en) * | 1999-07-26 | 2001-02-09 | Mitsumi Electric Co Ltd | Board-mounting coil device |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN107464658A (en) | 2017-12-12 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20181205 Address after: 230088 No. 1800, Xi you road, hi tech Zone, Hefei, Anhui. Applicant after: ANHUI JIYUAN SOFTWARE CO., LTD. Applicant after: STATE GRID INFORMATION & TELECOMMUNICATION GROUP 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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