CN208507358U - A kind of current transformer - Google Patents
A kind of current transformer Download PDFInfo
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- CN208507358U CN208507358U CN201821337139.5U CN201821337139U CN208507358U CN 208507358 U CN208507358 U CN 208507358U CN 201821337139 U CN201821337139 U CN 201821337139U CN 208507358 U CN208507358 U CN 208507358U
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Abstract
The utility model relates to transformer technical fields, especially a kind of current transformer, including current transformer ontology, the current transformer ontology is arranged in case inside, current transformer ontology lower end is provided with connector lug, shell lower end side lower end offers the wire guide through shell, conducting wire is connected on the connector lug, the conducting wire of the hull outside is wrapped on rolling-up mechanism, the rolling-up mechanism includes the first circular block and the second circular block, and first circular block it is identical as the second circular block diameter, first circular block is connected with the second circular block by clamping mechanism, the outside of first circular block and the second circular block offers circular trough, the conducting wire is wrapped on the inside of circular trough, positioning mechanism is additionally provided at the center of first circular block and the second circular block.The utility model stable structure can wind the conducting wire of mutual inductor, thus the case where avoiding conducting wire from being broken because of winding.
Description
Technical field
The utility model relates to transformer technical field more particularly to a kind of current transformers.
Background technique
Primary side high current is converted into secondary side low current to measure according to electromagnetic induction principle by current transformer
Instrument.Current transformer is made of the iron core and winding being closed.Therefore it often there are whole electric currents of route to flow through, it is secondary around
Group turn ratio is more, is serially connected in measuring instrumentss and protective loop, at work, its secondary side circuit is always for current transformer
It is closure, therefore the impedance very little of measuring instrumentss and protective loop series coil, the working condition of current transformer is close to short
Road.Current transformer is high current to be converted into secondary low current to measure.
Current transformer on existing market when in use, since the length of conducting wire can not be adjusted, to cause measuring
When data and place apparatus, the phenomenon that conducting wire will appear winding, or even will appear that conducting wire is broken during pullling, show
As to be unfavorable for the long-time service of equipment, therefore being unfavorable for promoting.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of Current Mutual Inductance proposed
Device.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of current transformer, including current transformer ontology are designed, the current transformer ontology is arranged in shell
Side, current transformer ontology lower end are provided with connector lug, and shell lower end side lower end offers leading through shell
String holes is connected with conducting wire on the connector lug, and the conducting wire other end through wire guide and extends to hull outside, outside the shell
The conducting wire of side is wrapped on rolling-up mechanism, and the rolling-up mechanism includes the first circular block and the second circular block, and first is round
Block is identical as the second circular block diameter, and first circular block is connected with the second circular block by clamping mechanism, and described first
The outside of circular block and the second circular block offers circular trough, and two circular troughs are located at opposite side, and the conducting wire twines
It is wound on the inside of circular trough, is additionally provided with positioning mechanism at the center of first circular block and the second circular block.
Preferably, the positioning mechanism includes that fixation is provided with the card slot at the first circular block side center and is welded on
Fixture block at second circular block side center, the fixture block are fastened in card slot, and card slot and fixture block clearance fit.
Preferably, the clamping mechanism includes the annular groove being provided on the first circular block and is welded on the second circular block
Two link blocks of side, the angle between two link blocks is the straight angle, and link block is mutually not in contact with each other with fixture block, described
Fixing card is set there are two arc block on annular groove, and the depth of the annular groove is twice of arc block thickness, and two arc blocks
With annular groove upper end formed two arcuate sockets, and two arcuate sockets be it is arranged symmetrically, the link block upper end is welded with arc
Fixture block, the mutual cooperation of the arc fixture block and arcuate socket, and the thickness of arc fixture block, arc block and link block is identical, institute
State the height that arc fixture block upper surface is greater than fixture block to the distance of link block bottom.
Preferably, the case inside offers square groove, and current transformer body bottom portion is fastened in square groove, and
Current transformer ontology and square groove clearance fit.
Preferably, the case inside upper end is bonded with dummy block, and the lower surface of dummy block and current transformer ontology
Upper surface be in contact.
The utility model proposes a kind of current transformer, beneficial effect is: the current transformer can be by equipment
Conducting wire is wound, so that the phenomenon that equipment when in use, is not in conducting wire winding and fracture, to extend equipment
Using the time, survey crew is shortened to the finishing time of conducting wire, to improve work efficiency, and the rolling-up mechanism is convenient for tearing open
It unloads, it is convenient to operate, which can be stably fixed in shell, improve the stability of device, therefore be conducive to promote.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of current transformer structure top view.
Fig. 2 be the utility model proposes a kind of current transformer structure front view.
Fig. 3 be the utility model proposes a kind of first round block structure of current transformer face enlarged drawing.
Fig. 4 be the utility model proposes a kind of current transformer the first round block structure top perspective view.
Fig. 5 be the utility model proposes the structure of the second circular block of current transformer a kind of face enlarged drawing.
Fig. 6 be the utility model proposes a kind of current transformer the second circular block structure top perspective view.
In figure: the first circular block 1, card slot 2, annular groove 3, arc fixture block 4, circular trough 5, conducting wire 6, arcuate socket 7, fixture block 8,
It is arc block 9, link block 10, the second circular block 11, wire guide 12, connector lug 13, shell 14, current transformer ontology 15, rectangular
Slot 16, dummy block 17.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-6, a kind of current transformer, including current transformer ontology 15, the setting of current transformer ontology 15 exist
On the inside of shell 14, square groove 16 is offered on the inside of shell 14, and 15 bottom of current transformer ontology is fastened in square groove 16, and
Current transformer ontology 15 and 16 clearance fit of square groove, by the way that current transformer ontology 15 is fastened on 16 bottom of square groove,
So that current transformer ontology 15 is when in use, will not be in contact with shell 14, to effectively play protective current
The effect of mutual inductor ontology 15.
14 inner top side of shell is bonded with dummy block 17, and the lower surface of dummy block 17 and current transformer ontology 15 is upper
Surface is in contact, and is squeezed by dummy block 17 current transformer ontology 15, so that current transformer ontology 15 is protected always
Keep steady fixed state, and dummy block 17 is soft, has retractility, will not damage to current transformer ontology 15.
15 lower end of current transformer ontology is provided with connector lug 13, and 14 lower end side lower end of shell is offered through shell 14
Wire guide 12, conducting wire 6 is connected on connector lug 13, and 6 other end of conducting wire through wire guide 12 and extends to 14 outside of shell,
The conducting wire 6 in 14 outside of shell is wrapped in, and conducting wire 6 is wound by rolling-up mechanism, so that in current transformer sheet
It is not in the situation of the winding of conducting wire 6 and fracture during 15 use of body, and rolling-up mechanism is easy to disassemble, installation is quick,
To improve work efficiency.
Rolling-up mechanism includes the first circular block 1 and the second circular block 11, and the first circular block 1 and the second circular block 11 are straight
Diameter is identical, and the first circular block 1 is connected with the second circular block 11 by clamping mechanism, and clamping mechanism includes being provided with the first circle
Annular groove 3 on block 1 and two link blocks 10 for being welded on 11 side of the second circular block, and link block 10 and fixture block 8 are mutual
It does not contact, fixing card is set there are two arc block 9 on annular groove 3, and two arc blocks 9 and 3 upper end of annular groove form two arcs
Hole 7,10 upper end of link block are welded with arc fixture block 4, and the mutual cooperation of arc fixture block 4 and arcuate socket 7 rotates the second circular block
11, so that two arc fixture blocks 4 on the second circular block 11 extend through two arcuate sockets 7 and enter 3 inside of annular groove, it is rotated further by
Second circular block 11, so that two arc fixture blocks 4 are not overlapped mutually with the position of two arcuate sockets 7, to play
The effect that two circular blocks 11 engage with the first circular block 1 rotates the second circular block when needing to dismantle rolling-up mechanism
11, so that the position of two arc fixture blocks 4 and two arcuate sockets 7 overlaps, the second circular block 11 and the first circular block 1 at this time
Between without any connection relationship, so as to separate the second circular block 11 with the first circular block 1, the design operation is easy,
And close stable structure.
4 upper surface of arc fixture block is greater than the height of fixture block 8 to the distance of 10 bottom of link block, only when on arc fixture block 4
When the distance of surface to 10 bottom of link block is greater than the height of fixture block 8, arc fixture block 4 can enter annular through arcuate socket 7
In slot 3, the second circular block 11 is engaged with the first circular block 1.
The depth of annular groove 3 is twice of 9 thickness of arc block, and the thickness of arc fixture block 4, arc block 9 and link block 10
It spends identical, by the design, enables to arc fixture block 4 that can enter in annular groove 3 through arcuate socket 7, and 4 turns of arc fixture block
It is dynamic to be arranged between 3 inside bottom of arc block 9 and annular groove, also can while improving the stability of the rotation of arc fixture block 4
It prevents that opposite shake occurs between the second circular block 11 and the first circular block 1.
Angle between two link blocks 10 is the straight angle, and two arcuate sockets 7 be it is arranged symmetrically, can by the design
So that the angle that two arc fixture blocks 4 rotate in annular groove 3 is identical when the second 11 a certain angle of circular block of rotation, while partially
Angle from arcuate socket 7 is identical, to improve the effect of engaging.
The outside of first circular block 1 and the second circular block 11 offers circular trough 5, and two circular troughs 5 are located at phase
To side, conducting wire 6 is wrapped in 5 inside of circular trough, and the first circular block 1 and 11 opposite side of the second circular block offer circular trough
5, and two circular troughs 5 contact with each other, when the first circular block 1 and the second circular block 11 are fastened togather, enable to lead
Line 6 is wrapped in 5 inside of circular trough, plays the role of winding to conducting wire 6.
Positioning mechanism is additionally provided at the center of first circular block 1 and the second circular block 11, positioning mechanism includes that fixation is opened
The card slot 2 being located at 1 side center of the first circular block and the fixture block 8 being welded at 11 side center of the second circular block, fixture block 8
It is fastened in card slot 2, and card slot 2 and 8 clearance fit of fixture block, is fastened in card slot 2 by fixture block 8, so that round by first
When block 1 and the second circular block 11 are engaged, while improving the speed of engaging, the accuracy of position is also improved, from
And it can guarantee engaging stable between the first circular block 1 and the second circular block 11.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of current transformer, including current transformer ontology (15), the current transformer ontology (15) is arranged in shell
(14) inside, which is characterized in that current transformer ontology (15) lower end is provided with connector lug (13), under the shell (14)
End side lower end offers the wire guide (12) through shell (14), is connected with conducting wire (6) on the connector lug (13), and conducting wire
(6) other end through wire guide (12) and extends on the outside of shell (14), and the conducting wire (6) on the outside of the shell (14) is wrapped in receipts
It rolls up in mechanism, the rolling-up mechanism includes the first circular block (1) and the second circular block (11), and the first circular block (1) and the
Two circular blocks (11) diameter is identical, and first circular block (1) is connected with the second circular block (11) by clamping mechanism, described
The outside of first circular block (1) and the second circular block (11) offers circular trough (5), and two circular troughs (5) are located at phase
To side, the conducting wire (6) is wrapped on the inside of circular trough (5), the center of first circular block (1) and the second circular block (11)
Place is additionally provided with positioning mechanism.
2. a kind of current transformer according to claim 1, which is characterized in that the positioning mechanism includes that fixation is provided with
Card slot (2) at first circular block (1) side center and the fixture block (8) being welded at the second circular block (11) side center,
The fixture block (8) is fastened in card slot (2), and card slot (2) and fixture block (8) clearance fit.
3. a kind of current transformer according to claim 1, which is characterized in that the clamping mechanism includes being provided with first
Annular groove (3) on circular block (1) and two link blocks (10) for being welded on the second circular block (11) side, two companies
Connecing the angle between block (10) is the straight angle, and link block (10) is mutually not in contact with each other with fixture block (8), fixed on the annular groove (3)
It is arranged with two arc blocks (9), the depth of the annular groove (3) is twice of arc block (9) thickness, and two arc blocks (9)
Two arcuate sockets (7) are formed with annular groove (3) upper end, and two arcuate sockets (7) are arranged symmetrically, link block (10) upper end
It is welded with arc fixture block (4), the mutual cooperation of the arc fixture block (4) and arcuate socket (7), and arc fixture block (4), arc block
(9) and the thickness of link block (10) is identical, and the distance of arc fixture block (4) upper surface to link block (10) bottom is greater than card
The height of block (8).
4. a kind of current transformer according to claim 1, which is characterized in that offered on the inside of the shell (14) rectangular
Slot (16), and current transformer ontology (15) bottom is fastened in square groove (16), and current transformer ontology (15) with it is rectangular
Slot (16) clearance fit.
5. a kind of current transformer according to claim 1, which is characterized in that shell (14) inner top side is bonded with
Dummy block (17), and the lower surface of dummy block (17) is in contact with the upper surface of current transformer ontology (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821337139.5U CN208507358U (en) | 2018-08-18 | 2018-08-18 | A kind of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821337139.5U CN208507358U (en) | 2018-08-18 | 2018-08-18 | A kind of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507358U true CN208507358U (en) | 2019-02-15 |
Family
ID=65300458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821337139.5U Active CN208507358U (en) | 2018-08-18 | 2018-08-18 | A kind of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063506A (en) * | 2019-12-26 | 2020-04-24 | 中国能源建设集团华东电力试验研究院有限公司 | Current transformer and test method thereof |
-
2018
- 2018-08-18 CN CN201821337139.5U patent/CN208507358U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063506A (en) * | 2019-12-26 | 2020-04-24 | 中国能源建设集团华东电力试验研究院有限公司 | Current transformer and test method thereof |
| CN111063506B (en) * | 2019-12-26 | 2024-04-30 | 中国能源建设集团华东电力试验研究院有限公司 | Current transformer and test method thereof |
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