CN107017076B - A kind of steel glue composite current transformer - Google Patents
A kind of steel glue composite current transformer Download PDFInfo
- Publication number
- CN107017076B CN107017076B CN201610602039.XA CN201610602039A CN107017076B CN 107017076 B CN107017076 B CN 107017076B CN 201610602039 A CN201610602039 A CN 201610602039A CN 107017076 B CN107017076 B CN 107017076B
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- CN
- China
- Prior art keywords
- coil
- main body
- current transformer
- mutual inductor
- silicon rubber
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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
- 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
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a kind of steel glue composite current transformer, the mutual inductor coil including wearing a circuit；Coil is cast in the current transformer body of silicon rubber formation, and support coil is additionally provided in main body and meets the metallic framework of agent structure intensity；The secondary wiring terminals group of coil is located at body outer surface；Metallic framework includes metal substrate, and metal supporting rings are vertically installed on substrate and wear the through-hole of a circuit, coil sets around through-hole and is fixed in support ring；Through-hole wears the metal guide rod for being connected to and extending to outside main body；Mutual inductor coil and metallic framework are integrally poured into a mould silicon rubber and form mutual inductor by the present invention, the insulating requirements of mutual inductor are met using the good insulation performance of silicon rubber, while more environmentally friendly；And silicon rubber is lower compared to plastics, the fusing point of nylon, will not cause the damage of coil；And metallic framework then plays the role of supportive body and coil, avoids the problem of silicon rubber is yielding, meets the structural strength of mutual inductor, it is safer durable.
Description
Technical field
The present invention relates to current transformer, especially a kind of steel glue composite current transformer.
Background technology
Epoxy resin has that good insulating performance, fusing point be low, the preferable physical property of intensity is widely used in electric power electricity
On device product, such as common current transformer, it is typically to be made in mutual inductor coil surface casting epoxy resin mixed glue,
But epoxy resin is carcinogenic, and is difficult to degrade, and seriously pollutes environment, and scientists from all over the world are energetically finding alternative materials.
For environmental issue, the insulation pouring layer of part new transformer is adopted made of plastic, but the fusing point of plastics is higher,
It is more serious to the injury of the enameled wire of mutual inductor coil during integrated injection molding, it is higher to manufacturing process and material requirements；And plastics
Insulation performance it is relatively poor, it is difficult to make the current transformer product of more than 6kV.
In addition some manufacturers also attempt all to be far superior to using heat resistance and insulation performance the silicon rubber of epoxy resin come
Realize the insulation and environmental protection of mutual inductor, but silicon rubber is soft, yielding, can not meet dynamic and thermal stability performance.
Invention content
It for overcome the deficiencies in the prior art, concentrates on studies through inventor, a kind of steel glue composite current transformer is provided.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of steel glue composite current transformer, the mutual inductor coil including wearing a circuit；The coil is cast
In the current transformer body formed in silicon rubber, the support coil is additionally provided in the main body and meets the agent structure intensity
Metallic framework；The secondary wiring terminals group of the coil is located at the body outer surface；The metallic framework includes Metal Substrate
Plate is vertically installed with metal supporting rings on the substrate and wears the through-hole of a circuit, and the coil is set around the through-hole
And it is fixed in the support ring；The through-hole wears the metal guide rod for being connected to and extending to outside the main body.
The substrate extends on the outside of the main body and equipped with mutual inductor installation position.
The main body is externally provided with metal mounting base, which is provided with mutual inductor installation position；The mounting base and the master
Internal metallic framework is fixedly connected.
Metal reinforcing is equipped in the main body；The reinforcing rib setting is on the substrate.
Metal reinforcing is equipped in the main body；The reinforcing rib is arranged on mounting base and/or substrate.
The coil is equipped with multiple taps.
The beneficial effects of the invention are as follows：Mutual inductor coil and metallic framework are integrally poured into a mould silicon rubber and form mutual inductance by the present invention
Device meets the insulating requirements of mutual inductor using the good insulation performance of silicon rubber, while more environmentally friendly；And silicon rubber is compared to modeling
Material, the fusing point of nylon are lower, will not cause the damage of coil；And metallic framework then plays the role of supportive body and coil, keeps away
Exempt from the problem of silicon rubber is yielding, meet the structural strength of mutual inductor, it is safer durable.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of an embodiment of the present invention；
Fig. 2 is the structure diagram of metallic framework in Fig. 1；
Fig. 3 is second of embodiment of the present invention；
Fig. 4 is the third embodiment of the present invention；
Fig. 5 is the stereogram of Fig. 4；
Fig. 6 is the structure diagram of metallic framework in Fig. 4.
Specific embodiment
With reference to Fig. 1, Fig. 2, a kind of steel glue composite current transformer, the mutual inductor coil 1 including wearing a circuit；Institute
It states coil 1 to be cast in the current transformer body 3 of silicon rubber formation, is equipped in the main body 3 and supports the coil 1 and meet institute
State the metallic framework 2 of 3 structural strength of main body；The secondary wiring terminals group 4 of the coil 1 is located at 3 outer surface of main body access
In secondary line, the insulating requirements of mutual inductor are met using the good insulation performance of silicon rubber, it is more environmentally friendly；And silicon rubber is compared
Plastics, the fusing point of nylon are lower, will not cause the damage of coil；And metallic framework 2 then plays the work of supportive body 3 and coil 1
With, the problem of silicon rubber is yielding is avoided, meets the structural strength of mutual inductor, it is safer durable.
With reference to Fig. 2, the metallic framework 2 includes metal substrate 21, and metal supporting rings are vertically installed on the substrate 21
22 and the through-hole 23 of a circuit is worn, the coil 1 sets around the through-hole 23 and is fixed in the support ring 22, described
Coil 1 can be wound on 22 outside of support ring or card is placed on 22 inside of support ring.
Further, the through-hole 23 wears the metal guide rod 7 for being connected to and extending to outside the silica gel main body 3 and forms busbar
A circuit is accessed at type current transformer, the both ends of a metal guide rod 7.
The substrate 21 extends 3 outside of main body and equipped with mutual inductor installation position 6, full by integrated moulding by casting
Sufficient bus type and core through type current transformer are installed and used, and are manufactured very convenient simple.
With reference to Fig. 5, for different installation requirements, metal mounting base 5 can be externally provided in the silica gel main body 3, installed
The position that bottom plate 5 exposes silica gel main body 3 can be equipped with mutual inductor installation position 6；It can lead between the mounting base 5 and metallic framework 2
The mode for crossing welding is fixedly connected, and the making of current transformer is completed finally by cast silica gel, more easy.
And a metal guide rod 7 is different according to its installation position of installation settings mode, as shown in Figure 3, Figure 4, as
The mesh font of support type current transformer and goat's horn type meet the installation requirement of current transformer at different conditions, are applicable in model
It encloses wider.
With reference to Fig. 2 and Fig. 6, in order to further strengthen the structural strength of current transformer, gold is equipped in the silica gel main body 3
Belong to reinforcing rib 8；The reinforcing rib 8 is arranged on the mounting base 5 and/or the substrate 21.
In addition, the coil 1 can be equipped with multiple taps, and the quantity of secondary wiring terminals group 4 is then according to practical tap number
Amount decision forms polytropic ratio, and flexibility is stronger.
After technical solution using the present invention, by the cooperation of silicon rubber and metallic framework 2, have current transformer
It is more environmentally friendly while good insulating performance, durable, it can be widely used in electric power field.
Claims (6)
1. a kind of steel glue composite current transformer, it is characterised in that：Mutual inductor coil (1) including wearing a circuit；Institute
It states coil (1) to be cast in the current transformer body (3) of silicon rubber formation, the support coil is additionally provided in the main body (3)
(1) and meet the metallic framework (2) of the main body (3) structural strength；The secondary wiring terminals group (4) of the coil (1) is located at
Main body (3) outer surface；The metallic framework (2) includes metal substrate (21), and gold is vertically installed on the substrate (21)
Belong to support ring (22) and wear the through-hole (23) of a circuit, the coil (1) sets around the through-hole (23) and is fixed on institute
It states in support ring (22)；The through-hole (23), which wears to be connected to, extends to the metal guide rod (7) of the main body (3) outside.
2. current transformer according to claim 1, it is characterised in that：The substrate (21) extends the main body (3)
Outside is simultaneously equipped with mutual inductor installation position (6).
3. current transformer according to claim 1, it is characterised in that：The main body (3) is externally provided with metal mounting base
(5), it which is provided with mutual inductor installation position (6)；The mounting base (5) and the fixed company of metallic framework (2) in the main body (3)
It connects.
4. current transformer according to claim 1, it is characterised in that：Metal reinforcing is equipped in the main body (3)
(8)；The reinforcing rib (8) is arranged on the substrate (21).
5. current transformer according to claim 3, it is characterised in that：Metal reinforcing is equipped in the main body (3)
(8)；The reinforcing rib (8) is arranged on the mounting base (5) and/or substrate (21).
6. current transformer according to claim 1, it is characterised in that：The coil (1) is equipped with multiple taps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602039.XA CN107017076B (en) | 2016-07-27 | 2016-07-27 | A kind of steel glue composite current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602039.XA CN107017076B (en) | 2016-07-27 | 2016-07-27 | A kind of steel glue composite current transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107017076A CN107017076A (en) | 2017-08-04 |
| CN107017076B true CN107017076B (en) | 2018-06-15 |
Family
ID=59439360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610602039.XA Active CN107017076B (en) | 2016-07-27 | 2016-07-27 | A kind of steel glue composite current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107017076B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3069272B2 (en) * | 1995-06-27 | 2000-07-24 | 東光電気株式会社 | Switch current transformer holder |
| CN2433722Y (en) * | 2000-07-21 | 2001-06-06 | 北京电研华源电力技术有限公司 | Full-outdoor-type dry high-tension current inductor |
| DE102005027943A1 (en) * | 2005-06-16 | 2006-12-28 | Epcos Ag | Carrier device for a toroidal core choke, holder for an inductive component and inductive component |
| CN103632824A (en) * | 2012-03-12 | 2014-03-12 | 魏孝铭 | Annular symmetrical shunting type current transformer |
| CN204130335U (en) * | 2014-07-22 | 2015-01-28 | 上海伊顿通用设备有限公司 | A kind of wall-penetrating type current transformer |
| CN204464031U (en) * | 2015-01-14 | 2015-07-08 | 厦门振泰成科技有限公司 | A kind of contact pin type current transformer |
| CN205920848U (en) * | 2016-07-27 | 2017-02-01 | 何排枝 | Compound current transformer is glued to steel |
-
2016
- 2016-07-27 CN CN201610602039.XA patent/CN107017076B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107017076A (en) | 2017-08-04 |
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