CN105469967B - Outdoor open-close type current transformer is pressed in one kind - Google Patents
Outdoor open-close type current transformer is pressed in one kind Download PDFInfo
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- CN105469967B CN105469967B CN201610006999.XA CN201610006999A CN105469967B CN 105469967 B CN105469967 B CN 105469967B CN 201610006999 A CN201610006999 A CN 201610006999A CN 105469967 B CN105469967 B CN 105469967B
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- iron core
- plastic
- upper yoke
- lower half
- shape iron
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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
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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
-
- 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
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- 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
- H01F27/2895—Windings disposed upon ring cores
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
Outdoor open-close type current transformer is pressed in one kind, include the plastic casing of winding, upper yoke frame of plastic and lower half frame shape iron core, upper yoke is correspondingly provided with upper yoke frame of plastic, half frame shape iron core is correspondingly provided with lower half frame shape iron core plastic casing, upper yoke frame of plastic and lower half frame shape iron core plastic casing side are hinged, upper yoke frame of plastic is connected with the opposite side of the plastic casing of lower half frame shape iron core by quickly opening and closing attachment means, intracavity bottom on upper yoke frame of plastic is integrally formed with shell fragment, and shell fragment is withstood on the upper yoke of half frame shape iron core;When upper yoke frame of plastic and lower half frame shape iron core plastic casing fasten, above-mentioned shell fragment can be brought into close contact upper yoke and iron core.It has good insulation and humidity resistance to the present invention, is extremely easy to install, dismantle and safeguard, shell fragment ensures that iron core group is brought into close contact, measurement accuracy is improved, mounting means is very easy, is significantly reduced the set-up time, efficiency and security performance are improved, it has good thief-proof electrical property.
Description
Technical field
The invention belongs to electric device, more particularly to a kind of open-close type Outdoor Current Transformer.
Background technology
Middle pressure Outdoor Current Transformer generally use poured with epoxy resin forms, and has good insulating properties and moisture resistance
Can, secondary line terminals band lead sealing plastic jacket.Because in order to keep high accuracy, usual annular core is not folding, is caused
During installation, it is necessary to first transformer is enclosed on busbar, then busbar connection is installed, otherwise, transformer can not be installed.Meanwhile mutual inductance
When device needs to change, it is also necessary to pull down busbar, busbar is reinstalled again after changing transformer, cause the time of replacing needs very
It is long, and waste of material is very big, wastes time and energy.Therefore the middle pressure Outdoor Current Transformer of poured with epoxy resin also has using folding
Formula structure.Open-close type product is divided into two, and product is fixed together by generally use anchor ear.This anchor ear connected mode can be due to
Degree difference is tightened, whether interface aligns and influence properties of product;In addition, repeatedly installation after, can cause anchor ear screw fail and
So that product can not normal operation.Due to pressing Outdoor Current Transformer to be consolidated using epoxy resin in outdoor open-close type
Envelope, production difficulty is big, complex process, and environmentally friendly and recyclable degree extreme difference.Outdoor Current Transformer is pressed in outdoor open-close type
Secondary terminals are connected with binding post, also to increase anti-electricity-theft cover, installation is complicated, and also there is the risk of second short circuit.
Because outdoor products require good sealing property, Outdoor Current Transformer is pressed in the open-close type of shell-type due to interface
Place does not protect, can be because intaking for Outdoor Current Transformer, it is easy to which getting rusty causes Product Precision to decline or even scrap, institute
So that shell-type open-close type current transformer cannot be used for open air.Be used in it is indoor, also often because humidity cause problem of rustiness;
And after two iron cores of open-close type current transformer fasten, often occur that fitting is not close, influence mutual inductor measuring accuracy of measurement, because
This retractable structure will not be used in the middle pressure Outdoor Current Transformer of shell-type.In addition, middle pressure Outdoor Current Transformer is adopted
With terminal deriving structure, its thief-proof poor electrical performance.
The content of the invention
The present invention be directed to above-mentioned shortcoming, there is provided a kind of middle pressure Outdoor Current Transformer of shell-type, using folding
Formula, it has good an insulating properties and humidity resistance, and dismounting, installation are extremely convenient, and its iron core section coincide intact, measurement essence
Degree is high, and has anti-stealing electricity function.
Present invention solves the technical problem that used technical scheme is:
Outdoor open-close type current transformer is pressed in one kind, it is characterized in that including winding 12, upper yoke frame of plastic 1 and lower half frame
The plastic casing 2 of shape iron core 4, is correspondingly provided with upper yoke 3 in upper yoke frame of plastic 1, corresponding in the plastic casing 2 of lower half frame shape iron core 4
Provided with half frame shape iron core 4, above-mentioned winding 12 is wound on half frame shape iron core 4, upper yoke frame of plastic 1 and the plastics of lower half frame shape iron core 4
The side of housing 2 is hinged, and the opposite side of upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4 is connected by quickly opening and closing
Connection device connects, and the joint between upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4 is surrounded by seal
11, the intracavity bottom on upper yoke frame of plastic 1 is integrally formed with shell fragment 8, and shell fragment 8 is withstood on the upper yoke 3 of half frame shape iron core 4;On
When iron yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4 fasten, above-mentioned shell fragment 8 can be brought into close contact upper yoke 3 and iron core,
Above-mentioned seal 11 ensures to seal between upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4;Lower half frame shape iron core 4
Wire hole is provided with plastic casing 2, the output end of winding 12 directly passes through the plastic casing 2 of lower half frame shape iron core 4 by lead 9
Wire hole is drawn, and lead 9 at wire hole with being provided with sealing ring 10.
Joint between upper yoke frame of plastic and lower half frame shape iron core plastic casing is surrounded by seal, lead
With being provided with sealing ring at wire hole, its integrally-built sealing is ensure that, there are good insulating properties and humidity resistance, make
It can apply occasion out of doors, and the output end of winding is directly drawn by drawing through transformer housing, that is, ensure that product
Sealing property, solve the risk problem of second short circuit again, meanwhile, install and use very easy, ensure that its thief-proof electrical property.
Other upper yoke does not have winding, therefore top and the bottom do not need connecting line, ensure that the sealing of product, in addition upper yoke plastics
Intracavity bottom on frame is integrally formed with shell fragment, and shell fragment can make half frame shape iron core in upper and lower mutual inductor plastic housing and upper yoke tight
Closely connected conjunction, iron core section coincide intact, and iron core closure is complete, improves measurement accuracy.Shell fragment and iron yoke frame of plastic integrative-structure,
When it makes, shell fragment is integrally formed with iron yoke frame of plastic, and cost is low, and is not in offset phenomena, and installation is very convenient, no
Easily failure.
When it is implemented, quickly opening and closing attachment means include hasp 5 and projection 6, hasp 5 includes iron hoop 52 and buckle 51,
Iron hoop 52 is hinged with buckle 51, and projection 6 is located on upper yoke frame of plastic 1, buckle 51 and the plastic casing 2 of lower half frame shape iron core 4
It is hinged, when upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4 fasten, buckle 51 can drive iron hoop 52 to be pressed into projection
6.As long as in use, lifting buckle, iron hoop is disengaged from projection, and transformer can is opened, and transformer is enclosed on cable, weight
Newly close, buckle drives iron hoop press-in projection, and buckle tenses, and with regard to installation, dismounting, installation are extremely convenient.The technical program
Structure, it is intact both to ensure that iron core section coincide, and be extremely easy to install, dismantle and safeguard again, and be a kind of very easy installation side
Formula, the set-up time can greatly be reduced, improve efficiency and security performance.
When it is implemented, upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4 are closed by left-right parts mould and formed,
13 use ultrasonic bonding at mould conjunction.The present invention use air insulation mode, with ultrasonic bonding at plastic housing matched moulds conjunction, be product and
External environment reliably completely cuts off, and is effectively guaranteed the service life of product, moreover, simple to operate, recyclable degree is high.
When it is implemented, shell fragment 8 is integrally located at the both sides of the intracavity bottom on upper yoke frame of plastic 1,8 curved knot of shell fragment
Structure.
The beneficial effects of the invention are as follows:Technical solution of the present invention structure, it has good insulating properties and humidity resistance,
It is extremely easy to install, dismantle and safeguard, shell fragment ensure that iron core group is brought into close contact, and improve measurement accuracy, and mounting means is very simple
Just, the set-up time can be greatly reduced, improves efficiency and security performance, there is good thief-proof electrical property.
Brief description of the drawings
Invention is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is outline structural diagram of the embodiment of the present invention.
Fig. 2 is the internal structure schematic diagram of the embodiment of the present invention.
Fig. 3 is closure state side structure schematic view of the embodiment of the present invention.
Fig. 4 is upper yoke frame of plastic structural representation of the embodiment of the present invention.
Fig. 5 is upper yoke frame of plastic cross section structure diagram of the embodiment of the present invention.
Fig. 6 is hasp structure schematic diagram of the embodiment of the present invention.
Fig. 7 is seal configuration schematic diagram of the embodiment of the present invention.
Fig. 8 is ring structure schematic diagram of the embodiment of the present invention.
In figure:1st, upper yoke frame of plastic 2, plastic casing 3, upper yoke 4, half frame shape iron core 5, hasp 6, projection 7,
Rotating shaft 8, shell fragment 9, lead 10, sealing ring 11, seal 12, winding 13,51, buckle 52, iron hoop at mould conjunction.
Embodiment
In Fig. 1 into Fig. 8, outdoor open-close type current transformer is pressed in a kind of, it is characterized in that being moulded including winding 12, upper yoke
Material frame 1 and the plastic casing 2 of lower half frame shape iron core 4, upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4 are by left and right portion
Divide mould to close to form, 13 use ultrasonic bonding at mould conjunction.Upper yoke 3, lower half frame shape iron core 4 are correspondingly provided with upper yoke frame of plastic 1
Half frame shape iron core 4 is correspondingly provided with plastic casing 2, winding 12 is wound on half frame shape iron core 4, upper yoke frame of plastic 1 and lower half frame
The side of 4 plastic casing of shape iron core 2 is hinged by rotating shaft 7, upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4
Opposite side is connected by quickly opening and closing attachment means, and quickly opening and closing attachment means include hasp 5 and projection 6, and hasp 5 includes iron hoop
52 and buckle 51, iron hoop 52 be hinged with buckle 51, projection 6 is located on upper yoke frame of plastic 1, buckle 51 and lower half frame shape iron core
4 plastic casings 2 are hinged, and when upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4 fasten, buckle 51 can drive iron hoop
52 press-in projections 6.Joint between upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4 is surrounded by seal
11, the intracavity bottom on upper yoke frame of plastic 1 is integrally formed with shell fragment 8, and shell fragment 8 is integrally located at the inner chamber on upper yoke frame of plastic 1
The both sides of bottom, 8 curved structure of shell fragment, shell fragment 8 are withstood on the upper yoke 3 of half frame shape iron core 4;Upper yoke frame of plastic 1 is with
When the plastic casing 2 of half frame shape iron core 4 fastens, shell fragment 8 can be brought into close contact upper yoke 3 and iron core, in the above-mentioned guarantee of seal 11
Sealed between iron yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4;Outlet is provided with the plastic casing 2 of lower half frame shape iron core 4
Hole, the output end of winding 12 are directly drawn by the wire hole of lead 9 through the plastic casing 2 of lower half frame shape iron core 4, lead 9 with
Sealing ring 10 is provided with wire hole.
As long as in use, lifting buckle 51, iron hoop 52 is disengaged from projection 6, and transformer can is opened, by transformer set
On cable, close again, buckle 51 drives iron hoop 52 to be pressed into projection 6, and buckle 51 tenses, with regard to installation, dismounting, installation pole
It is convenient.Joint between upper yoke frame of plastic 1 and the plastic casing 2 of lower half frame shape iron core 4 is surrounded by seal 11,
Lead 9 ensure that its integrally-built sealing, have good insulating properties and protection against the tide with being provided with sealing ring 10 at wire hole
Performance, occasion out of doors can be applied, the output end of winding 12 is directly drawn by lead 9 through transformer housing, i.e.,
The sealing property of product is ensure that, the risk problem for solving second short circuit again, meanwhile, install and use very easy, ensure that
Its thief-proof electrical property.Other upper yoke 3 does not have winding 12, therefore top and the bottom do not need connecting line, ensure that the sealing of product
Property, the intracavity bottom on upper yoke frame of plastic 1 is integrally formed with shell fragment 8 in addition, and shell fragment 8 can make up and down in mutual inductor plastic housing 2
Half frame shape iron core 4 and upper yoke 3 be brought into close contact, iron core section coincide intact, and iron core closure is complete, improves measurement accuracy.
Shell fragment 8 and the integrative-structure of iron yoke frame of plastic 1, when it makes, shell fragment 8 is integrally formed with iron yoke frame of plastic 1, and cost is low, and not
Offset phenomena occurs, installs very convenient, it is not easy to fail.The present invention uses air insulation mode, 13 at plastic housing matched moulds conjunction
With ultrasonic bonding, it is that product reliably completely cuts off with external environment, is effectively guaranteed the service life of product.
Claims (1)
1. outdoor open-close type current transformer is pressed in one kind, it is characterized in that including winding (12), upper yoke frame of plastic (1) and lower half
Frame shape iron core (4) plastic casing (2), upper yoke frame of plastic (1) is interior to be correspondingly provided with upper yoke (3), the modeling of lower half frame shape iron core (4)
Lower half frame shape iron core (4) is correspondingly provided with material shell body (2), above-mentioned winding (12) is wound on lower half frame shape iron core (4), upper yoke modeling
Material frame (1) and lower half frame shape iron core (4) plastic casing (2) side are hinged, upper yoke frame of plastic (1) and lower half frame shape iron core
(4) opposite side of plastic casing (2) is connected by quickly opening and closing attachment means, upper yoke frame of plastic (1) and lower half frame shape iron core
(4) joint between plastic casing (2) is surrounded by seal (11), intracavity bottom one on upper yoke frame of plastic (1)
Body is provided with shell fragment (8), and shell fragment (8) is withstood on the upper yoke (3) of lower half frame shape iron core (4);Upper yoke frame of plastic (1) and lower half frame
When the plastic casing (2) of shape iron core (4) fastens, above-mentioned shell fragment (8) can be brought into close contact upper yoke (3) and iron core, above-mentioned sealing
Part (11) ensures to seal between upper yoke frame of plastic (1) and lower half frame shape iron core (4) plastic casing (2);Lower half frame shape iron core (4)
Plastic casing (2) place is provided with wire hole, and the output end of winding (12) directly passes through lower half frame shape iron core (4) by lead (9)
Plastic casing (2) wire hole is drawn, and lead (9) at wire hole with being provided with sealing ring (10);Quickly opening and closing attachment means include taking
Button (5) and projection (6), hasp (5) include iron hoop (52) and buckle (51), and iron hoop (52) is hinged with buckle (51), projection (6)
It is located on upper yoke frame of plastic (1), buckle (51) is hinged with lower half frame shape iron core (4) plastic casing (2), upper yoke frame of plastic
(1) when and lower half frame shape iron core (4) plastic casing (2) fastens, buckle (51) can drive iron hoop (52) to be pressed into projection (6);Shell fragment
(8) both sides for the intracavity bottom being integrally located on upper yoke frame of plastic (1), shell fragment (8) curved structure;
Upper yoke frame of plastic (1) and lower half frame shape iron core (4) plastic casing (2) close by left-right parts mould to be formed, at mould conjunction
(13) ultrasonic bonding is used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610006999.XA CN105469967B (en) | 2016-01-06 | 2016-01-06 | Outdoor open-close type current transformer is pressed in one kind |
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CN201610006999.XA CN105469967B (en) | 2016-01-06 | 2016-01-06 | Outdoor open-close type current transformer is pressed in one kind |
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CN105469967A CN105469967A (en) | 2016-04-06 |
CN105469967B true CN105469967B (en) | 2018-01-16 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106373737B (en) * | 2016-10-14 | 2018-03-09 | 嵊州市仲明新材料科技有限公司 | A kind of iron core of convenient use |
CN108172386A (en) * | 2018-03-06 | 2018-06-15 | 浙江天际互感器有限公司 | A kind of Open Type Electric Current Mutual Inductor of outdoor desirable voltage signal |
CN108987082B (en) * | 2018-06-28 | 2020-06-19 | 江阴市星火电子科技有限公司 | Open-close type current transformer with electromagnetic shielding layer and assembling method thereof |
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CN2924329Y (en) * | 2006-07-19 | 2007-07-18 | 陈建华 | Lighter |
CN101447328A (en) * | 2008-09-12 | 2009-06-03 | 郑元豹 | Open-close type current transformer |
CN203433984U (en) * | 2013-08-09 | 2014-02-12 | 江山市三江互感器省级高新技术研究开发中心 | Split type current transformer |
CN204315380U (en) * | 2014-12-02 | 2015-05-06 | 广东电网有限责任公司东莞供电局 | A kind of open-close type current transformer |
CN205319019U (en) * | 2016-01-06 | 2016-06-15 | 浙江天际互感器有限公司 | Outdoor split type current transformer of middling pressure |
-
2016
- 2016-01-06 CN CN201610006999.XA patent/CN105469967B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2924329Y (en) * | 2006-07-19 | 2007-07-18 | 陈建华 | Lighter |
CN101447328A (en) * | 2008-09-12 | 2009-06-03 | 郑元豹 | Open-close type current transformer |
CN203433984U (en) * | 2013-08-09 | 2014-02-12 | 江山市三江互感器省级高新技术研究开发中心 | Split type current transformer |
CN204315380U (en) * | 2014-12-02 | 2015-05-06 | 广东电网有限责任公司东莞供电局 | A kind of open-close type current transformer |
CN205319019U (en) * | 2016-01-06 | 2016-06-15 | 浙江天际互感器有限公司 | Outdoor split type current transformer of middling pressure |
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Address after: No. 8, Jingtian Road, Jiangshan Economic Development Zone, Jiangshan City, Quzhou City, Zhejiang Province 324102 Patentee after: Zhejiang Tianji Instrument Transformer Co.,Ltd. Address before: No. 2, Shanhai Road, Shanhai Cooperation Zone, Jiangshan Economic Development Zone, Quzhou City, Zhejiang Province, 324123 Patentee before: ZHEJIANG HORIZON INSTRUMENT TRANSFORMERS Co.,Ltd. |