CN209880380U - Outdoor open-type combined current transformer of silicon rubber - Google Patents
Outdoor open-type combined current transformer of silicon rubber Download PDFInfo
- Publication number
- CN209880380U CN209880380U CN201920682218.8U CN201920682218U CN209880380U CN 209880380 U CN209880380 U CN 209880380U CN 201920682218 U CN201920682218 U CN 201920682218U CN 209880380 U CN209880380 U CN 209880380U
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- China
- Prior art keywords
- iron core
- current transformer
- sleeve
- silicon rubber
- silicone rubber
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 97
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000004945 silicone rubber Substances 0.000 claims description 36
- 230000001681 protective effect Effects 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 14
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 6
- 238000013040 rubber vulcanization Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 abstract description 7
- 239000004593 Epoxy Substances 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 210000000867 larynx Anatomy 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 12
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 9
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses an outdoor open-type combination current transformer of silicon rubber. The utility model discloses a current transformer obtains first iron core and second iron core by the cutting of the annular iron core of circle to obtain a system in the outside first silicon rubber overcoat of parcel of first iron core, form the solenoid at the outside wire winding of second iron core, obtain the secondary system in the outside parcel second silicon rubber overcoat of solenoid, then obtain system and secondary system fastening combination together through the larynx hoop. The utility model discloses an adopt first silicon rubber overcoat and second silicon rubber overcoat, insulate and seal, replace the main insulation and the ABS shell that epoxy poured into, avoided the ageing fracture of the main insulation overcoat that epoxy poured into and the shell of ABS material, cause the condemned technical defect of product, can long-time outdoor use.
Description
Technical Field
The utility model relates to a power electronics field, in particular to outdoor open-type combination current transformer of silicon rubber.
Background
The traditional silicone rubber outdoor open type combined current transformer generally adopts ABS (acrylonitrile Butadiene Styrene, ABS refers to acrylonitrile-Butadiene-Styrene copolymer) material as the outer shell of the product, a coil which takes an iron core as a main element is manufactured by casting epoxy resin and then serves as a main insulating material, the transformer is machined into two symmetrical halves, then hoops are assembled together to form the silicone rubber outdoor open type combined current transformer, the traditional silicone rubber outdoor open type combined current transformer is generally suitable for indoor, a protective sleeve with a protection effect needs to be manufactured separately when the traditional silicone rubber outdoor open type combined current transformer is used outdoors, the protective sleeve needs to be waterproof, ultraviolet-proof and anti-aging, although the protective sleeve can play a role in protecting the transformer, the epoxy resin and the ABS shell of the product are easy to age and crack, the product is scrapped, primary line measurement is inaccurate, and line faults are easy to cause. How to provide a silicon rubber outdoor open-type combined current transformer which is suitable for the outdoor becomes a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an outdoor open-type combination current transformer of silicon rubber to a be applicable to outdoor open-type combination current transformer of silicon rubber is provided.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides an outdoor open-type combination current transformer of silicon rubber, current transformer includes: the semi-circular primary system and the semi-circular secondary system are fastened together through a hose clamp to form a circular current transformer;
the primary system comprises a semicircular first iron core and a first silicon rubber outer sleeve; the first silicon rubber outer sleeve is wrapped outside the first iron core;
the secondary system comprises a semicircular second iron core, a secondary coil and a second silicon rubber outer sleeve, the secondary coil is wound on the second iron core to form a coil, and the second silicon rubber outer sleeve is wrapped outside the coil;
the first iron core and the second iron core are obtained by cutting annular iron cores.
Optionally, the primary system further comprises a ferrule; the ferrule is sleeved outside the first silicon rubber outer sleeve.
Optionally, the ferrule includes a square sleeve and a circular sleeve;
the round pipe sleeve is arranged on the side wall of the square pipe sleeve, the axis of the round pipe sleeve is perpendicular to the axis of the square pipe sleeve, and the axis of the round pipe sleeve is parallel to the side wall; the square pipe sleeve and the round pipe sleeve are of an integrally formed structure;
the square pipe sleeve is sleeved outside the first silicon rubber outer sleeve.
Optionally, the ferrule is made of silicone rubber.
Optionally, the secondary system further comprises a protective box; the protective box is sleeved outside the second iron core, and the secondary coil is wound on the protective box.
Optionally, the protective box comprises a semi-circular hollow iron core sleeve and two rectangular ring sleeves;
the shape of the inner ring of the rectangular ring sleeve is the same as that of the inner ring of the end face of the hollow iron core sleeve, the inner rings of the two rectangular ring sleeves are respectively superposed with the inner rings of the end faces of the two ends of the hollow iron core sleeve, and the hollow iron core sleeve and the two rectangular ring sleeves are of an integrally formed structure;
the second iron core is sleeved in the hollow iron core sleeve, and two ends of the second iron core respectively extend out of the inner rings of the two rectangular ring sleeves; the secondary coil is wound on the hollow iron core sleeve.
Optionally, the material of the protective box is ABS plastic.
Optionally, the first silicone rubber outer sleeve is obtained by putting the first iron core into a mold for silicone rubber vulcanization molding.
Optionally, the second silicone rubber outer sleeve is obtained by putting the coil into a mold for silicone rubber vulcanization molding.
Optionally, the current transformer further comprises two sealing plugs;
the two sealing plugs are respectively arranged inside two ends of the second silicon rubber outer sleeve.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
the utility model discloses an outdoor open-type combination current transformer of silicon rubber. The current transformer includes: the semi-circular primary system and the semi-circular secondary system are fastened together through a hose clamp to form a circular current transformer; the primary system comprises a semicircular first iron core and a first silicon rubber outer sleeve; the first silicon rubber outer sleeve is wrapped outside the first iron core; the secondary system comprises a semicircular second iron core, a secondary coil and a second silicon rubber outer sleeve, the secondary coil is wound on the second iron core to form a coil, and the second silicon rubber outer sleeve is wrapped outside the coil. The utility model discloses a current transformer obtains first iron core and second iron core by the cutting of the annular iron core of circle to obtain a system in the outside first silicon rubber overcoat of parcel of first iron core, form the solenoid at the outside wire winding of second iron core, obtain the secondary system in the outside parcel second silicon rubber overcoat of solenoid, then obtain system and secondary system fastening combination together through the larynx hoop. The utility model discloses an adopt first silicon rubber overcoat and second silicon rubber overcoat, insulate and seal, replace the main insulation and the ABS shell that epoxy poured into, avoided the ageing fracture of the main insulation overcoat that epoxy poured into and the shell of ABS material, cause the condemned technical defect of product, can long-time outdoor use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a structural diagram of a silicone rubber outdoor open-type combined current transformer provided by the present invention; wherein, fig. 1a is a front view of a structure of a silicone rubber outdoor open type combined current transformer, and fig. 1b is a cross-sectional view of the structure of the silicone rubber outdoor open type combined current transformer;
fig. 2 is an overall appearance diagram of the silicone rubber outdoor open-type combined current transformer provided by the present invention;
fig. 3 is a structural diagram of a hose clamp of a three-phase integrated current transformer provided by the present invention;
fig. 4 is a structural diagram of a first iron core of a three-phase integrated current transformer provided by the present invention;
fig. 5 is a structural diagram of a first silicone rubber outer sleeve of the three-phase integrated current transformer provided by the present invention;
fig. 6 is a structural diagram of a second silicone rubber outer sleeve of the three-phase integrated current transformer provided by the present invention;
fig. 7 is a structural diagram of a ferrule of a three-phase integrated current transformer provided by the present invention;
fig. 8 is a structural diagram of a protective box of a three-phase integrated current transformer provided by the present invention;
fig. 9 is a structural diagram of the assembled second iron core and protective box of the three-phase integrated current transformer provided by the present invention;
fig. 10 is a structural diagram of a sealing plug of a three-phase integrated current transformer provided by the present invention;
fig. 11 is a structural diagram of the second silicone rubber outer sleeve of the sealing plug of the three-phase integrated current transformer provided by the utility model.
Detailed Description
The utility model aims at providing an outdoor open-type combination current transformer of silicon rubber to a be applicable to outdoor open-type combination current transformer of silicon rubber is provided.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.
The utility model provides an outdoor open-type combination current transformer of silicon rubber, as shown in figure 1 and 2, current transformer includes: the semi-circular primary system A and the semi-circular secondary system B are fastened together through a hose clamp C shown in figure 3 to form a circular current transformer; the primary system a comprises a semi-circular first iron core 1 shown in fig. 4 and a first silicon rubber casing 2 shown in fig. 5; the first silicon rubber outer sleeve 2 is made of a silicon rubber material; the first silicon rubber outer sleeve 2 is wrapped outside the first iron core 1; secondary system B includes annular second iron core 3 of semicircle, secondary coil (not shown in fig. 1 and 2) and as shown second silicon rubber overcoat 4 of fig. 6, the secondary coil winding is in on the second iron core 3, form the solenoid, second silicon rubber overcoat 4 parcel is in the outside of solenoid, first iron core 1 with second iron core 3 is obtained by the cutting of ring shape iron core.
As shown in fig. 1, the primary system further comprises a ferrule 5; the ferrule 5 is sleeved outside the first silicon rubber outer sleeve 2. As shown in fig. 7, the ferrule 5 includes a square socket 501 and a circular socket 502; the circular pipe sleeve 502 is arranged on the side wall of the square pipe sleeve 501, the axis of the circular pipe sleeve 502 is perpendicular to the axis of the square pipe sleeve 501, and the axis of the circular pipe sleeve 502 is parallel to the side wall; the square pipe sleeve 501 and the round pipe sleeve 502 are of an integrally formed structure; the square pipe sleeve is sleeved outside the first silicon rubber outer sleeve 2. The ferrule is made of silicon rubber.
As shown in fig. 1, the secondary system further includes a sheath box 6; the protective box 6 is sleeved outside the second iron core 3, and the secondary coil is wound on the protective box 6. As shown in fig. 8, the protective case 6 includes a hollow core sleeve 601 of a semi-circular ring type and two rectangular ring sleeves 602; the shape of the inner ring of the rectangular ring sleeve 602 is the same as the shape of the inner ring of the end face of the hollow core sleeve 601, the inner rings of the two rectangular ring sleeves 602 are respectively overlapped with the inner rings of the end faces of the two ends of the hollow core sleeve 601, and the hollow core sleeve 601 and the two rectangular ring sleeves 602 are of an integrally formed structure; the second iron core 3 is sleeved in the hollow iron core sleeve 601, and two ends of the second iron core 3 respectively extend out of the inner rings of the two rectangular ring sleeves 602; the secondary coil is wound around the hollow core sleeve 601. The structure of the second core assembled with the protective case is shown in fig. 9. The material of the protective box 6 is ABS plastic.
The first silicon rubber outer sleeve 2 is obtained by putting the first iron core into a mold to perform silicon rubber vulcanization molding.
The second silicone rubber outer sleeve 4 is obtained by putting the wire package into a mold for silicone rubber vulcanization molding.
The current transformer also comprises two sealing plugs 7; the shape of the sealing plugs 7 is a rectangular ring as shown in fig. 10, two sealing plugs 7 are respectively sleeved inside two ends of the second silicone rubber housing 4, and fig. 11 is a structural diagram of the second silicone rubber housing 4 in which the sealing plugs are installed. Two ends of the first iron core 1 are respectively sleeved inside the two sealing plugs 7.
The utility model discloses the primary system of mutual-inductor is assembled into with first silicon rubber overcoat 2 to first iron core that will not carry out wire winding processing, and wherein the material of first silicon rubber overcoat 2 is silicon rubber, because silicon rubber has higher elastic deformation, is particularly suitable for doing the sealing material, so silicon rubber material's this moment first silicon rubber overcoat 2 both plays insulating role and plays sealed effect again.
And a protective box is separately manufactured outside the second iron core, the protective box is made of ABS (acrylonitrile butadiene styrene), the secondary coil is wound on the protective box, and the protective box plays a role in protecting a lead and preventing a paint film of the secondary coil from being broken. And a semi-finished product formed by assembling the wire-wound protective box and the second iron core is called a wire package, and the wire package is placed into a silicon rubber mold and vulcanized and molded under high temperature and high pressure to form the second silicon rubber outer sleeve 4.
In order to ensure the sealing of the joint of the second silicone rubber jacket 4 and the first silicone rubber jacket 2, a sealing plug is specially designed to ensure the sealing of the joint of the two parts of the product with the outside.
In order to ensure that the two parts of the product are tightly connected and are not loosened, the hose clamp is specially designed, the hose clamp is made of 1Cr18Ni9Ti stainless steel, and the outdoor use condition is fully ensured.
The design of the ferrule considers that the connection between the primary lead and the mutual inductor needs to be firm and flexible, and meanwhile, the application range of the primary lead is expanded.
To sum up, the utility model discloses an open current transformer has following characteristics:
1) the performance characteristics are as follows:
the utility model discloses a open current transformer of current transformer for outsourcing silicon rubber has advantages such as corrosion-resistant, ultraviolet resistance radiation is strong, ageing-resistant, non-maintaining.
And secondly, the second silicon rubber outer sleeve formed by the silicon rubber through injection molding plays a role in main insulation, so that the insulation strength is improved, and the requirements of the national standard GB1208-2014 in China can be met.
And thirdly, the device is suitable for outdoor use.
2) The use conditions are as follows:
ambient temperature: -40 ℃ to +70 ℃;
average daily temperature: less than or equal to +40 ℃;
altitude: less than or equal to 2000 m;
the pollution grade is as follows: and II, level II.
3) The technical parameters are as follows:
rated primary insulation voltage: 12kV/45kV/75 kV;
rated frequency: 50 Hz;
transformation ratio: 600/5, respectively;
and (3) accurate grade: grade 0.5;
and a load: 5 VA.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained by applying specific embodiments, the description of the above embodiments is only used to help understand the method and the core idea of the present invention, and the described embodiments are only a part of the embodiments of the present invention, but not all embodiments, and based on the embodiments of the present invention, all other embodiments obtained by the person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
Claims (10)
1. An outdoor open-type combined current transformer of silicon rubber, characterized in that the current transformer comprises: the semi-circular primary system and the semi-circular secondary system are fastened together through a hose clamp to form a circular current transformer;
the primary system comprises a semicircular first iron core and a first silicon rubber outer sleeve; the first silicon rubber outer sleeve is wrapped outside the first iron core;
the secondary system comprises a semicircular second iron core, a secondary coil and a second silicon rubber outer sleeve, the secondary coil is wound on the second iron core to form a coil, and the second silicon rubber outer sleeve is wrapped outside the coil;
the first iron core and the second iron core are obtained by cutting annular iron cores.
2. The silicone rubber outdoor open combination current transformer according to claim 1, wherein the primary system further comprises a ferrule; the ferrule is sleeved outside the first silicon rubber outer sleeve.
3. The silicone rubber outdoor open combination current transformer according to claim 2, wherein the ferrule comprises a square tube sleeve and a circular tube sleeve;
the round pipe sleeve is arranged on the side wall of the square pipe sleeve, the axis of the round pipe sleeve is perpendicular to the axis of the square pipe sleeve, and the axis of the round pipe sleeve is parallel to the side wall; the square pipe sleeve and the round pipe sleeve are of an integrally formed structure;
the square pipe sleeve is sleeved outside the first silicon rubber outer sleeve.
4. The silicone rubber outdoor open combination current transformer according to claim 2, wherein the ferrule is made of silicone rubber.
5. The silicone rubber outdoor open combination current transformer according to claim 1, wherein the secondary system further comprises a protective case; the protective box is sleeved outside the second iron core, and the secondary coil is wound on the protective box.
6. The silicone rubber outdoor open type combined current transformer according to claim 5, wherein the protective box comprises a hollow core sleeve of a semi-circular ring type and two rectangular ring sleeves;
the shape of the inner ring of the rectangular ring sleeve is the same as that of the inner ring of the end face of the hollow iron core sleeve, the inner rings of the two rectangular ring sleeves are respectively superposed with the inner rings of the end faces of the two ends of the hollow iron core sleeve, and the hollow iron core sleeve and the two rectangular ring sleeves are of an integrally formed structure;
the second iron core is sleeved in the hollow iron core sleeve, and two ends of the second iron core respectively extend out of the inner rings of the two rectangular ring sleeves; the secondary coil is wound on the hollow iron core sleeve.
7. The silicone rubber outdoor open type combined current transformer according to claim 5, wherein the material of the protective box is ABS plastic.
8. The outdoor open type combined silicone rubber current transformer as claimed in claim 1, wherein said first silicone rubber casing is obtained by placing said first iron core into a mold for silicone rubber vulcanization molding.
9. The outdoor open type combined silicone rubber current transformer as claimed in claim 1, wherein the second silicone rubber casing is obtained by putting the coil into a mold and performing silicone rubber vulcanization molding.
10. The silicone rubber outdoor open type combined current transformer according to claim 1, wherein the current transformer further comprises two sealing plugs;
the two sealing plugs are respectively arranged inside two ends of the second silicon rubber outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682218.8U CN209880380U (en) | 2019-05-14 | 2019-05-14 | Outdoor open-type combined current transformer of silicon rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682218.8U CN209880380U (en) | 2019-05-14 | 2019-05-14 | Outdoor open-type combined current transformer of silicon rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209880380U true CN209880380U (en) | 2019-12-31 |
Family
ID=68965020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920682218.8U Withdrawn - After Issue CN209880380U (en) | 2019-05-14 | 2019-05-14 | Outdoor open-type combined current transformer of silicon rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209880380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136942A (en) * | 2019-05-14 | 2019-08-16 | 北京恒源利通电力技术有限公司 | A kind of silicon rubber outdoor open-type combination current mutual inductor |
-
2019
- 2019-05-14 CN CN201920682218.8U patent/CN209880380U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136942A (en) * | 2019-05-14 | 2019-08-16 | 北京恒源利通电力技术有限公司 | A kind of silicon rubber outdoor open-type combination current mutual inductor |
| CN110136942B (en) * | 2019-05-14 | 2024-05-24 | 北京恒源利通电力技术有限公司 | Outdoor open-type combined current transformer of silicone rubber |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191231 Effective date of abandoning: 20240524 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191231 Effective date of abandoning: 20240524 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |