CN206098135U - Open current transformer convenient to maintenance - Google Patents
Open current transformer convenient to maintenance Download PDFInfo
- Publication number
- CN206098135U CN206098135U CN201621117516.5U CN201621117516U CN206098135U CN 206098135 U CN206098135 U CN 206098135U CN 201621117516 U CN201621117516 U CN 201621117516U CN 206098135 U CN206098135 U CN 206098135U
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- Prior art keywords
- winding
- current transformer
- iron core
- winding displacement
- heat
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Abstract
The utility model discloses an open current transformer convenient to maintenance, including the mutual -inductor main part, the winding displacement room, the top cap, mounting plate, the iron core, secondary winding and main winding, the lower surface of mutual -inductor main part is through the upper surface of welding mode fixed mounting at mounting plate, the top of mutual -inductor main part is through the surface of welding mode fixed mounting in the winding displacement room, there is the top cap on the upper portion of winding displacement room through bolt fixed mounting, the PCB board has been erect to the indoor portion's underrun branch of winding displacement, the inside of mutual -inductor main part is provided with the iron core, the outer lane winding of half part on the iron core left side has the secondary winding, the outer lane winding of half part on the iron core right side has the main winding, the surface of secondary winding and the cold junction face laminating of electric refrigeration piece, the right -hand member surface at the heat -conducting plate is pasted to the hot junction face of electric refrigeration piece, the heat -conducting plate is connected through the outside surperficial amount heating panel of heat conduction stick and mutual -inductor main part. The utility model discloses simple structure, reasonable in design, the radiating effect is good, and the dismouting of being convenient for maintains to have very high practical value.
Description
Technical field
This utility model is related to current transformer field, specifically a kind of open current transformer for being easy to keep in repair.
Background technology
According to electromagnetic induction principle, current transformer is by the iron core and winding group for closing to current transformer principle
Into.During electric power system fault, current transformer is subjected to the heat effect of the huge current flow that short circuit current causes and electronic masterpiece
Should have with, current transformer can bear and will not be subject to the ability destroyed, this ability born with it is thermally-stabilised and it is dynamic surely
Determine multiple to represent.Thermally-stabilised multiple refers to that the heating that current transformer is not caused in heat-stable current 1s exceedes the electricity for allowing limit
The ratio of the rated current of stream and current transformer.Dynamic stability multiple be the maximum current instantaneous value that can bear of current transformer with
The ratio of its rated current.
Also can need to be dispersed in time in surrounding with certain heat in the course of work at ordinary times；When generation electric power event
During barrier, the huge heat of generation is same, most current transformer be unable to reach compared with good radiating effect.Meanwhile, electric current is mutual
When breaking down, usually because its internal wiring board goes wrong, the current transformer of prior art is dismounted number sensor
Tired, maintenance gets up to be inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of open current transformer be easy to and keep in repair, to solve above-mentioned background
The problem proposed in technology.
For achieving the above object, this utility model provides following technical scheme：
A kind of open current transformer for being easy to keep in repair, including current transformer body, winding displacement room, top cover, mounting base, ferrum
Core, auxiliary winding and main winding, the lower surface of the current transformer body is fixedly mounted on the upper table of mounting base by welding manner
Face, the side edge surface of mounting base is further opened with screwed hole；The top of the current transformer body is fixedly mounted by welding manner
On the surface of winding displacement room；The top of the winding displacement room is bolted and is provided with top cover；The winding displacement chamber interior underrun
Rod rest is provided with pcb board, and a terminal, No. two terminals and No. three terminals are further respectively had on pcb board；The current transformer body
Iron core is internally provided with, the outer ring of iron core left-half is wound with auxiliary winding, and the outer ring of iron core right half part is wound with main winding；
The surface of the auxiliary winding is fitted with the cold end face of electric cooling piece, and the hot junction face of electric cooling piece is pasted onto the right-hand member table of heat-conducting plate
Face；The heat-conducting plate is connected by heat conductive rod with current transformer body outer surface amount heat sink；The current transformer body
Inside is also filled with epoxy resin.
As further program of the utility model：Wire hole is further opened with the right plate of the winding displacement room.
As further program of the utility model：The right lateral surface of the current transformer body is also all provided with being provided with multiple radiatings
It is raised.
As further program of the utility model：The electric cooling piece is electrically connected with by wire and a terminal；Institute
State auxiliary winding to be electrically connected with by wire and No. two terminals；The main winding is electrically connected with by wire and No. three terminals.
Compared with prior art, the beneficial effects of the utility model are：When in use, external power source is to electric cooling piece for device
Electric energy is provided, the hot junction face of electric cooling piece is attached on heat-conducting plate, and the cold end face of electric cooling piece is attached on auxiliary winding, auxiliary winding is produced
Heat by electric cooling piece and heat-conducting plate, Jing heat conductive rods are delivered on heat sink and distribute；The setting of bolt causes top
Lid is easily opened, and facilitates the maintenance of winding displacement chamber interior wiring board, improves work efficiency；Whole dress is easy in the setting of screwed hole
The installation put, it is simple and practical.To sum up, whole device simple structure, reasonable in design, good heat dissipation effect is easy to dismounting to safeguard, has
Very high practical value.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1- current transformer bodies, 2- epoxy resin, 3- winding displacements room, 4- wire holes, 5- top covers, 6- bolts, 7-PCB plates,
8- mounting bases, 9- heat sinks, 10- heat conductive rods, 11- heat-conducting plates, 12- electricity cooling pieces, 13- iron cores, 14- radiatings are raised, 15- pairs
Winding, 16- main windings, 17- screwed holes, number terminal of 18-, No. bis- terminals of 19-, No. tri- terminals of 20-.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Fig. 1 is referred to, in this utility model embodiment, a kind of open current transformer for being easy to keep in repair, including mutual inductance
Device main body 1, winding displacement room 3, top cover 5, mounting base 8, iron core 13, auxiliary winding 15 and main winding 16, under the current transformer body 1
Surface is fixedly mounted on the upper surface of mounting base 8 by welding manner, and the side edge surface of mounting base 8 is further opened with screwed hole
17, the effect of screwed hole 17 is easy for the installation of whole device；The top of the current transformer body 1 is fixed by welding manner and is pacified
It is mounted in the surface of winding displacement room 3；The top of the winding displacement room 3 is installed with top cover 5 by bolt 6；The inner bottom of winding displacement room 3
Face is provided with pcb board 7 by rod rest, and 18, No. two terminals 19 of a terminal and No. three terminals 20 are further respectively had on pcb board 7；Institute
That states current transformer body 1 is internally provided with iron core 13, and the outer ring of the left-half of iron core 13 is wound with auxiliary winding 15, iron core 13 right half
Partial outer ring is wound with main winding 16；The surface of the auxiliary winding 15 is fitted with the cold end face of electric cooling piece 12, electric cooling piece
12 hot junction face is pasted onto the right end face of heat-conducting plate 11；The heat-conducting plate 11 passes through outside heat conductive rod 10 and current transformer body 1
Surface amount heat sink 9 is connected；The electric cooling piece 12 is electrically connected with by wire with a terminal 18；The auxiliary winding 15
It is electrically connected with No. two terminals 19 by wire；The main winding 16 is electrically connected with by wire with No. three terminals 20；The row
Wire hole 4 is further opened with the right plate of line room 3, the effect of wire hole 4 is easy for the Internal PCB 7 of current transformer body 1 and outside
Connection between control circuit；The right lateral surface of the current transformer body 1 is also all provided with being provided with multiple radiatings raised 14, and radiating is raised
14 effect is the contact area for increasing the surface of current transformer body 1 and extraneous air, improves radiating efficiency；The current transformer body
1 inside is also filled with epoxy resin 2, improves the sealing of current transformer body 1.
Operation principle of the present utility model is：When in use, external power source to electric cooling piece 12 provides electric energy, electricity system to device
The hot junction face of cold 12 is attached on heat-conducting plate 11, and the cold end face of electric cooling piece 12 is attached on auxiliary winding 15, what auxiliary winding 15 was produced
Heat is delivered on heat sink 9 and is distributed by electric cooling piece 12 and heat-conducting plate 11, Jing heat conductive rods 10；The setting of bolt 6
So that top cover 5 is easily opened, the maintenance of the internal circuit board of winding displacement room 3 is facilitated, improve work efficiency；The setting of screwed hole 17
It is easy to the installation of whole device, it is simple and practical.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type is by claims rather than described above is limited, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as restriction
Involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that for clarity those skilled in the art should
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (4)
1. a kind of open current transformer for being easy to keep in repair, including current transformer body, winding displacement room, top cover, mounting base, ferrum
Core, auxiliary winding and main winding, it is characterised in that the lower surface of the current transformer body is fixedly mounted on installation by welding manner
The upper surface of base plate, the side edge surface of mounting base is further opened with screwed hole；The top of the current transformer body passes through welding side
Formula is fixedly mounted on the surface of winding displacement room；The top of the winding displacement room is bolted and is provided with top cover；In the winding displacement room
Portion's underrun rod rest is provided with pcb board, and a terminal, No. two terminals and No. three terminals are further respectively had on pcb board；It is described mutual
Sensor main body is internally provided with iron core, and the outer ring of iron core left-half is wound with auxiliary winding, the outer ring of iron core right half part twines
It is wound with main winding；The surface of the auxiliary winding is fitted with the cold end face of electric cooling piece, and the hot junction face of electric cooling piece is pasted onto heat conduction
The right end face of plate；The heat-conducting plate is connected by heat conductive rod with current transformer body outer surface amount heat sink；It is described mutual
The inside of sensor main body is also filled with epoxy resin.
2. it is according to claim 1 it is a kind of be easy to keep in repair open current transformer, it is characterised in that the winding displacement room
Right plate on be further opened with wire hole.
3. it is according to claim 1 it is a kind of be easy to keep in repair open current transformer, it is characterised in that the transformer
The right lateral surface of main body is also all provided with being provided with multiple radiating projections.
4. it is according to claim 1 it is a kind of be easy to keep in repair open current transformer, it is characterised in that it is described electricity refrigeration
Piece is electrically connected with by wire and a terminal；The auxiliary winding is electrically connected with by wire and No. two terminals；The main winding
It is electrically connected with by wire and No. three terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621117516.5U CN206098135U (en) | 2016-10-13 | 2016-10-13 | Open current transformer convenient to maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621117516.5U CN206098135U (en) | 2016-10-13 | 2016-10-13 | Open current transformer convenient to maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206098135U true CN206098135U (en) | 2017-04-12 |
Family
ID=58483617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621117516.5U Active CN206098135U (en) | 2016-10-13 | 2016-10-13 | Open current transformer convenient to maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206098135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769059A (en) * | 2017-11-30 | 2018-03-06 | 安徽广祺智能电器股份有限公司 | It is a kind of to realize the intelligent ring main unit cut soon of cable fault and its manufacture method |
-
2016
- 2016-10-13 CN CN201621117516.5U patent/CN206098135U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769059A (en) * | 2017-11-30 | 2018-03-06 | 安徽广祺智能电器股份有限公司 | It is a kind of to realize the intelligent ring main unit cut soon of cable fault and its manufacture method |
| CN107769059B (en) * | 2017-11-30 | 2024-03-15 | 安徽广祺智能电器股份有限公司 | Ring main unit for realizing intelligent fast cutting of cable faults and manufacturing method thereof |
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