CN203910517U - Anti-loosening current mutual inductor - Google Patents

Anti-loosening current mutual inductor Download PDF

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Publication number
CN203910517U
CN203910517U CN201420355617.0U CN201420355617U CN203910517U CN 203910517 U CN203910517 U CN 203910517U CN 201420355617 U CN201420355617 U CN 201420355617U CN 203910517 U CN203910517 U CN 203910517U
Authority
CN
China
Prior art keywords
cotter way
pin block
secondary terminals
block
line hole
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.)
Expired - Fee Related
Application number
CN201420355617.0U
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Chinese (zh)
Inventor
秦晓瓯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WENZHOU ZHIKAI ELECTRICAL TECHNOLOGY Co Ltd
Original Assignee
WENZHOU ZHIKAI ELECTRICAL TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WENZHOU ZHIKAI ELECTRICAL TECHNOLOGY Co Ltd filed Critical WENZHOU ZHIKAI ELECTRICAL TECHNOLOGY Co Ltd
Priority to CN201420355617.0U priority Critical patent/CN203910517U/en
Application granted granted Critical
Publication of CN203910517U publication Critical patent/CN203910517U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an anti-loosening current mutual inductor. The key point of the technical scheme is that the anti-loosening current mutual inductor comprises a transformer body and a secondary terminal, wherein the secondary terminal is conductively fixed on the transformer body; the secondary terminal is shaped like a square block; one end of the secondary terminal is conductively connected with a fixed part; a pin slot is arranged in the secondary terminal; a pin block is arranged in the pin slot; one end of the pin block extends out of the pin slot; one end, close to the fixed part, of the secondary terminal and the pin block are equipped with wire holes which interpenetrate with each other; and an elastic piece used for outwards pushing out the pin block is arranged in the pin slot. The anti-loosening current mutual inductor disclosed by the utility model has the advantages of being simple in structure, capable of effectively preventing the secondary terminal from loosening, and capable of improving using safety.

Description

Locking current transformer
Technical field
The utility model relates to a kind of instrument transformer, and more particularly, it relates to a kind of locking current transformer.
Background technology
Current transformer is a kind ofly high electric current can be converted in proportion to the electronic devices and components of low current, is widely used in electricity field.The secondary terminals of current transformer is the vitals that connects Other Instruments instrument, and current transformer on the market much has pair secondary terminals to protect, but the safeguard measure that conventionally just it is increased to some moistureproof anti-corrosions lacks locking protection.If the secondary terminals of current transformer is loosening or fixing unstable, can cause problems, as:
1. can make secondary impedance increase, thereby cause the precise decreasing of current transformer, measure error increases.
2. can make the core sataration of current transformer cause heating, when serious, even burn.
3. also have the danger of open circuit, the open circuit operation of Current Transformer Secondary terminal is very dangerous, can produce very high secondary voltage, jeopardizes equipment and personal safety.
To sum up tell, it is very necessary that secondary terminals is carried out to locking protection, especially at some, has the current transformer of the occasion work of vibrations.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of locking current transformer, and it is simple in structure, can effectively prevent that the generation of secondary terminals is loosening, improves safety in utilization.
For achieving the above object, the utility model provides following technical scheme: a kind of locking current transformer, comprise instrument transformer body, secondary terminals, secondary terminals conduction is fixed on instrument transformer body, described secondary terminals is square shape, one end conduction of described secondary terminals is connected with fixture, in described secondary terminals, be provided with cotter way, in described cotter way, be provided with pin block, and extend outside cotter way one end of pin block, the line hole that described secondary terminals is provided with mutual perforation near one end and the pin block of fixture, in described cotter way, be provided with for by the extrapolated elastic component of pin block.
By adopting technique scheme, in use, pin block is pushed in cotter way, make the line hole in secondary terminals corresponding with the line hole on pin block, skinned wire is passed from line hole, by fixture, be fixedly connected on secondary terminals, and pin block is subject to spring all the time to its outside thrust, the wire that makes to pierce into hole, cotter way interior lines is by the inwall in the inwall that is butted on cotter way tightly and line hole, reach dual fixing effect, anti-loosening property is better, and simple in structure, has effectively improved the fail safe of using.
The utility model is further set to: cotter way is vertically run through in described line hole.
By adopting technique scheme, make spring more concentrated to the thrust of pin block, do not disperse, wire is passed when the thrust of pin block by spring is connected to cotter way inwall or line hole inwall and can obtain better fastening effect.
The utility model is further set to: described cotter way is provided with for stopping that pin block skids off the block of cotter way in the opening part of cotter way, a side of the relative block of described pin block be provided with for the fixing inlay card portion of the staggered inlay card of block.
By adopting technique scheme, pin block can not departed from cotter way, its one end is fixed in cotter way, it is lived by block and the phase inlay card of inlay card portion, and pin block also can not skidded off when being installed with wire, prevents that pin block from skidding off the loss that cotter way causes outward.
The utility model is further set to: described secondary terminals is placed in instrument transformer body, described pin block extends part outside cotter way and is through to instrument transformer this is external, and instrument transformer body is provided with the Wire channel in building in UNICOM's line hole outward, and Wire channel in building and line hole are in same straight line.
By adopting technique scheme, make secondary terminals integral body in instrument transformer body, better to be protected, wire still can be worn in entrance hole by the Wire channel in building of connection threading hole, Wire channel in building and line hole passing in same straight line also more convenient wire.
Accompanying drawing explanation
Fig. 1 is the structural representation of the locking current transformer embodiment of the utility model;
Fig. 2 is the secondary terminals internal structure schematic diagram of the locking current transformer embodiment of the utility model.
Description of reference numerals: instrument transformer body 1, secondary terminals 2, Wire channel in building 11, fixture 21, cotter way 22, pin block 23, line hole 24, spring 25, groove 26, block 221, inlay card portion 231.
Embodiment
Referring to figs. 1 through Fig. 2, the locking current transformer embodiment of the utility model is described further.
The locking current transformer of the present embodiment, comprise instrument transformer body 1, secondary terminals 2, secondary terminals 2 is fixed on instrument transformer body 1, described secondary terminals 2 is square shape, one end conduction of described secondary terminals 2 is connected with fixture 21, fixture 21 is for being fixedly connected with wire, and what adopt is screw herein, certainly adopts other fixture that can be used for fixing cord also can.In described secondary terminals 2, be provided with cotter way 22; in described cotter way 22, be provided with pin block 23; and extend outside cotter way 22 one end of pin block 23; the part that pin block 23 extends outside cotter way 22 is insulating material; or protect by suit insulating material, what adopt is plastic material herein, the part of pin block 23 in cotter way 22 inside is that the metal material of conduction is made; as copper, iron etc., both are fixedly connected with.The line hole 24 that described secondary terminals 2 is provided with mutual perforation near one end and the pin block 23 of fixture 21, described line hole 24 linearly, is provided with in described cotter way 22 the extrapolated spring 25 of pin block 23.Cotter way 22 bottom surfaces and pin block 23 contact one end and are equipped with the groove 26 for spring 25 clampings with cotter way 22 bottom surfaces, spring 25 is connected between the two.Be not limited to 25 1 kinds of embodiments of spring herein, also can use other elastic component that can reach said function, as shell fragment etc., based on spring 25 good springiness, not yielding, and the fixing consideration of convenience, therefore using spring 25 as preferred embodiment.In use, only need be by pin block 23 to the interior extruding of cotter way 22, make the line hole 24 on secondary terminals 2 corresponding with the line hole 24 in pin block 23, skinned wire is passed from line hole 24, by fixture 21, be fixedly connected on the upper end of secondary terminals 2, and pin block 23 is subject to spring 25 all the time to its outside thrust, the wire that makes to pierce into cotter way 22 holes, interior lines 24 is by being butted on cotter way 22 inwalls and line hole 24 inwalls tightly, reach dual fixing effect, anti-loosening property is better, and simple in structure, effectively improved the fail safe of using.
Cotter way 22 is vertically run through in described line hole 24, can not disperse so that the thrust of 25 pairs of pin blocks 23 of spring is more concentrated, wire is passed when the thrust of pin block 23 by spring 25 is connected to cotter way 22 inwalls or line hole 24 inwall and can obtain best fastening effect.
Described cotter way 22 is provided with for stopping that pin block 23 skids off the block 221 of cotter way 22 in the opening part integral type of cotter way 22, one side of described pin block 23 relative blocks 221 be provided with for the fixing inlay card portion 231 of the staggered inlay card of block 221, inlay card portion 231 is the cascaded surface of bending, such design can be so that pin block 23 can not depart from cotter way 22, its one end is fixed in cotter way 22, it is lived by block 221 and the phase inlay card of inlay card portion 231, pin block 23 also can not skidded off when being installed with wire, prevent that pin block 23 from skidding off the outer loss causing of cotter way 22.The present embodiment just to cotter way 22 and the structure of pin block 23 make improvements, make it can reach above-mentioned effect, although also can make it reach same effect by the device that increases other on cotter way 22 or pin block 23, as directly pin block 23 tensions connected by spring 25 is fixing, it is limited that but it fastens power, fixed effect is not enough, so preferred present embodiment herein.
Described secondary terminals 2 is placed in instrument transformer body 1, and the part that described pin block 23 extends outside cotter way 22 is through to outside instrument transformer body 1, and the outer Wire channel in building 11 that is provided with UNICOM's line hole 24 of instrument transformer body 1, and Wire channel in building 11 with line hole 24 in same straight line.Design herein can secondary terminals 2 integral body in instrument transformer body 1, better protected, wire still can be worn in entrance hole 24 by the Wire channel in building 11 of connection threading hole 24, Wire channel in building 11 and line hole 24 passing in same straight line also more convenient wire.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within design concept of the present utility model, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims (4)

1. a locking current transformer, comprise instrument transformer body, secondary terminals, secondary terminals conduction is fixed on instrument transformer body, it is characterized in that: described secondary terminals is square shape, one end conduction of described secondary terminals is connected with fixture, in described secondary terminals, be provided with cotter way, in described cotter way, be provided with pin block, and extend outside cotter way one end of pin block, the line hole that described secondary terminals is provided with mutual perforation near one end and the pin block of fixture, is provided with in described cotter way for by the extrapolated elastic component of pin block.
2. locking current transformer according to claim 1, is characterized in that: cotter way is vertically run through in described line hole.
3. locking current transformer according to claim 1 and 2, it is characterized in that: described cotter way is provided with for stopping that pin block skids off the block of cotter way in the opening part of cotter way, a side of the relative block of described pin block be provided with for the fixing inlay card portion of the staggered inlay card of block.
4. locking current transformer according to claim 3, it is characterized in that: described secondary terminals is placed in instrument transformer body, described pin block extends part outside cotter way and is through to instrument transformer this is external, and instrument transformer body is provided with the Wire channel in building in UNICOM's line hole outward, and Wire channel in building and line hole are in same straight line.
CN201420355617.0U 2014-06-28 2014-06-28 Anti-loosening current mutual inductor Expired - Fee Related CN203910517U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420355617.0U CN203910517U (en) 2014-06-28 2014-06-28 Anti-loosening current mutual inductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420355617.0U CN203910517U (en) 2014-06-28 2014-06-28 Anti-loosening current mutual inductor

Publications (1)

Publication Number Publication Date
CN203910517U true CN203910517U (en) 2014-10-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420355617.0U Expired - Fee Related CN203910517U (en) 2014-06-28 2014-06-28 Anti-loosening current mutual inductor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110824406A (en) * 2019-11-12 2020-02-21 盐城市雷击环保科技有限公司 Ferromagnetic resonance test device for capacitive voltage transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110824406A (en) * 2019-11-12 2020-02-21 盐城市雷击环保科技有限公司 Ferromagnetic resonance test device for capacitive voltage transformer

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141029

Termination date: 20150628

EXPY Termination of patent right or utility model