CN205080999U - Open type current transformer - Google Patents
Open type current transformer Download PDFInfo
- Publication number
- CN205080999U CN205080999U CN201520912597.7U CN201520912597U CN205080999U CN 205080999 U CN205080999 U CN 205080999U CN 201520912597 U CN201520912597 U CN 201520912597U CN 205080999 U CN205080999 U CN 205080999U
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- Prior art keywords
- protective case
- base
- coil
- groove
- current transformer
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Abstract
The utility model provides an open type current transformer, including the base, characterized by: base ring cover has the protective case, be provided with the coil in the protective case cavity of protective case, the wire is drawn forth to the winding connection, be provided with communicating protective case through -hole and base through -hole on protective case and the base, draw -in groove on the protective case, be provided with on the base with the draw -in groove that the draw -in groove cooperation was used is protruding. The utility model discloses having optimized user experience, having made things convenient for current transformer's use, need not not dismantle the generating line one time, can install at will in the arbitrary place of circuit during the repacking circuit, raised the efficiency, the commonality is relatively good to be suitable for the scale metaplasia.
Description
Technical field
The utility model relates to current transformer field, specifically, relates to a kind of open type current transformer.
Background technology
Current transformer is one of device commonly used in electrical system, for by the big current signal in circuit or high voltage signal, be converted into the small area analysis signal in circuit or low voltage signal, to the high voltage in circuit or big current, carry out monitoring or controlling.Current transformer plays unsteady flow and electrical isolation effect.Be convenient to secondary meter measurement need to be converted to more unified electric current, avoid the danger of direct measurement circuitry.
When conventional current instrument transformer is applied to distribution system transformation project, need first deenergization, dismounting bus, by its bus through the current transformer center of circle, then installs bus.This traditional approach not only affects the normal electricity consumption of user, and needs to reconfigure complicated circuit, and human and material resources, financial resources all need very large input.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of open type current transformer, and versatility is relatively good, and is suitable for large-scale production.
The utility model adopts following technical scheme to realize utility model object:
A kind of open type current transformer, comprise base, it is characterized in that: described base ring set has protective case, coil is provided with in the protective case cavity of described protective case, described coil connects draws wire, described protective case and base are provided with the protective case through hole and base plate through holes that communicate, described protective case are provided with draw-in groove, described base is provided with described draw-in groove with the use of draw-in groove protruding.
As the further restriction to the technical program, described protective case comprises the upper protective case of annular and lower protective case, described upper protective case comprises upper left protective case and upper right protective case, described lower protective case comprises lower-left protective case and bottom right protective case, the side of described upper left protective case, upper right protective case, lower-left protective case and bottom right protective case is hinged on hollow copper post by rotating circular shaft, the opposite side of described upper left protective case, upper right protective case, lower-left protective case and bottom right protective case is threaded by protective case screw hole, and the side of described protective case screwed hole is provided with opening.
As the further restriction to the technical program, described upper left protective case and upper right protective case are provided with protective case groove, described lower-left protective case and bottom right protective case are provided with the protective case projection with described groove fit.
As the further restriction to the technical program, described rotation circular shaft is provided with breach, described hollow copper post is provided with circular hole.
As the further restriction to the technical program, described base comprises the lower bottom base of band pedestal lobe and the upper bed-plate of band base groove, is provided with base cavity pocket, described upper bed-plate is provided with base screw hole in described upper bed-plate and lower bottom base.
As the further restriction to the technical program, described coil comprises coil and lower coil, and described upper coil and lower coil comprise the iron core with insulating barrier, and described iron core periphery holds enamelled wire.
Compared with prior art; advantage of the present utility model and good effect are: the utility model optimizes Consumer's Experience; facilitate the use of current transformer; a bus need not be dismantled; any place of circuit arbitrarily can be arranged on during repacking circuit; raise the efficiency, versatility is relatively good, and it is raw to be suitable for scale.
Accompanying drawing explanation
Fig. 1 a Fig. 1 b and Fig. 1 c is overall structure schematic diagram of the present utility model.
Fig. 2 is protective case of the present utility model four monomer schematic top plan view.
Fig. 3 is that protective case of the present utility model rotates circular shaft and hollow copper rod structure schematic diagram.
Fig. 4 is protective case the latter half structural representation of the present utility model.
Fig. 5 is base overall structure schematic diagram of the present utility model.
Fig. 6 a and Fig. 6 b is base of the present utility model two monomer structure schematic diagrames.
Fig. 7 is loop construction schematic diagram of the present utility model.
Fig. 8 is the utility model instrument transformer manufacturing flow chart.
In figure: 1. protective case; 2. base; 3. coil; 4. draw wire;
11a. upper left protective case; 11b. upper right protective case; 12a. lower-left protective case; 12b. bottom right protective case; 13a. protective case groove; 13b. protective case is protruding; 14. protective case cavitys; 14a. opening; 15. draw-in grooves; 16. rotate circular shaft; 16a. breach; 17. protective case screw holes; 18. protective case through holes; 19. hollow copper posts; 19a. circular hole;
21a. lower bottom base; 21b. upper bed-plate; 22. base cavity pockets; 23. base screw holes; 24. base grooves; 25. pedestal lobes; 26. base plate through holes; 27. draw-in grooves are protruding;
The upper coil of 31a.; 31b. lower coil; 32. iron cores; 33. enamelled wires.
Embodiment:
Below in conjunction with embodiment, further illustrate the utility model.
See Fig. 1-Fig. 8, the utility model comprises base 2, described base 2 ring set has protective case 1, coil 3 is provided with in the protective case cavity 14 of described protective case 1, described coil 3 connects draws wire 4, described protective case 1 and base 2 are provided with the protective case through hole 18 and base plate through holes 26 that communicate, described protective case 1 are provided with draw-in groove 15, described base 2 is provided with described draw-in groove 15 with the use of draw-in groove projection 27.
Described protective case 1 comprises the upper protective case of annular and lower protective case, described upper protective case comprises upper left protective case 11a and upper right protective case 11b, described lower protective case comprises lower-left protective case 12a and bottom right protective case 12b, the side of described upper left protective case 11a, upper right protective case 11b, lower-left protective case 12a and bottom right protective case 12b is hinged on hollow copper post 19 by rotating circular shaft 16, the opposite side of described upper left protective case 11a, upper right protective case 11b, lower-left protective case 12a and bottom right protective case 12b is threaded by protective case screw hole 17, and the side of described protective case screw hole 17 is provided with opening 14a.
Described upper left protective case 11a and upper right protective case 11b is provided with protective case groove 13a, described lower-left protective case 12a and bottom right protective case 12b is provided with the protruding 13b of the protective case coordinated with described protective case groove 13a.
Described rotation circular shaft 16 is provided with breach 16a, described hollow copper post 19 is provided with circular hole 19a.
Described base 2 comprises the lower bottom base 21a of band the pedestal lobe 25 and upper bed-plate 21b of band base groove 24, is provided with base cavity pocket 22, described upper bed-plate 21b is provided with base screw hole 23 in described upper bed-plate 21b and lower bottom base 21a.
Described coil 3 comprises coil 31a and lower coil 31b, and described upper coil 31a and lower coil 31b comprises the iron core 32 with insulating barrier, and described iron core periphery holds enamelled wire 33.
Described upper left protective case 11a and upper right protective case 11b is fitted together to the first half forming protective case 1, places the first half that coil 31a forms the utility model instrument transformer in its cavity 14.Same, described lower-left protective case 12a and bottom right protective case 12b is fitted together to the latter half forming protective case 1, and built-in lower coil 31b forms the latter half of instrument transformer.The folding of the utility model instrument transformer realizes by rotating circular shaft 16.The rotation circular shaft 16 of protective case 1 four monomers is connected by hollow copper post 19.Rotate the various piece of circular shaft 16 and all have breach 16a, to realize after protective case 1 encapsulates, not to be squeezed wear and rupture by the enamelled wire 32 of hollow copper post 19 cabling.On the other hand, the opposite side of protective case 1 has a protective case screw hole 17, and this protective case screw hole 17 has four protective case combination of monomers to form, and controlled the folding of this instrument transformer by screw, ensure that tightness degree when iron core 32 two parts close, and do not affect its performance.
Protective case about 1 two parts form by two monomers are chimeric, wherein said upper left protective case 11a and upper right protective case 11b is with protective case groove 13a, described lower-left protective case 12a and bottom right protective case 12b is with the protruding 13b of protective case, the assembling of described upper left protective case 11a and upper right protective case 11b and the assembling of described lower-left protective case 12a and bottom right protective case 12b by chimeric the completing of protective case groove 13a and the protruding 13b part of protective case, then complete the welding of protective case 1 the first half and the latter half by ultrasonic welding technique.
Bottom right protective case 12b there is protective case through hole 18, to complete the extraction of drawing wire, realizes the utility model instrument transformer and exchange with external information.The size of this protective case through hole 18 is consistent with the cross section of drawing wire 4, and the extraction wire 4 that it should be noted that here refers to the wire of tyre insulating barrier, and diameter selects 4mm usually.Moreover reserved draw-in groove 15 on protective case 1, can be chimeric with the draw-in groove projection 27 on base 2, plays the effect of firm banking 2.
By lower bottom base 21a and upper bed-plate 21b is chimeric, base 2 adds that two cover screws fixedly form.Two parts of base 2 are by being fastened on protective case 1, and chimeric by base groove 24 and pedestal lobe 25, by docking of draw-in groove protruding 27 and draw-in groove 15 on protective case 1, the installation realizing base 2 is fixed.Base 2 realizes welding by ultrasonic welding technique.For realizing the detachable of base 2, generally do not carry out soldering.Base 2 there are two base screw holes 23, have ensured by two pairs of screws the fastness that base 2 is fixing.Base 2 also has base plate through holes 26, and this base plate through holes 26 is consistent with protective case through hole 18 size on protective case, realizes exchanging of the utility model instrument transformer and external information.
Coil 3 is divided into coil 31a and lower coil 31b, and two parts coil forms by with enamelled wire 33 in iron core 32 coiling of insulating barrier.Two parts coil is all with two lead-in wires, and product finally only exports two lead-in wires, is drawn out to outside protective case 1.The two lead-in wire needs or not to be drawn out to outside protective case 1 are welded together, are linked to be an entirety with the enamelled wire realizing two parts coil.It should be noted that, two lead-in wires of extraction provide with two lead-in wires that need weld.Here can suppose that the enamelled wire number of turn of two parts coil winding is N circle, and the product coil number of turn needed is 2N circle, the coil welded after two lead-in wires is N+N (correct solution) or N+ (-N) (mistake solution).N+ (-N) may be interpreted as, after two wire bonds, by an electric current in the utility model instrument transformer center of circle, the inductive current direction that two parts coil produces is contrary, play the effect of cancelling out each other, can be considered that the coil turn of coiling is 0, i.e. N+ (-N).
In order to realize the information interchange of two parts coil 3, two lead-in wires being drawn wire by protective case through hole 18 simultaneously, needing two of upper coil 31a to go between by rotating circular shaft 16, guiding in lower coil 31b, in lower coil 31b, carrying out extraction of welding and go between.It is significant to note that, when going between by rotating circular shaft 16, need extremely to note protective paint envelope curve 33, the appearance of the problem such as prevent that its extrusion abrasion from hanging up.The rotation circular shaft 16 future insufficiency 16a of the utility model instrument transformer, goes between by cover Huang Laguan, penetrates, draw, reach the function of protective paint envelope curve 33 from one end of hollow copper post 19 from the circular hole 19a of hollow copper post 19, reach the effect improving rate of finished products.
Concrete, as shown in Figure 5, illustrate the manufacture method of a kind of open type current transformer of the utility model.
First, protective case 1 and base 2 adopt mold injection molding processes to form; Iron core 32 adopts directional cold-rolling silicon steel tape wrapping to form; Secondary wiring adopts high-strength magnetic enamelled wire.
Insulating barrier process is added to iron core 32, ensures that enamelled wire 33 does not directly contact with iron core 32.
The enamelled wire 33 of the specific number of turns of coiling on iron core, and detect with tester, carry out number of turns compensation tuning.
Upper coil 31a is fixed on the protective case 12a of lower-left, requires core section and protective case register.Same, lower coil 31b is fixed on the protective case 12a of lower-left.
Lower-left protective case 12a and lower-left protective case 12a is docked, and inserts hollow copper post 19.The lead-in wire of upper coil 31a is put cotton varnished sleeve, through copper post circular hole 19a, guides in lower coil 31b, complete the welding of two parts lead-in wire.
Successively upper left protective case 11a and upper right protective case 11b is loaded onto, and carry out ultrasonic bonding.
Upper bed-plate 21b and lower bottom base 21a loads onto, and is drawn by two lead-in wires, so far, completes the manufacture of whole the utility model instrument transformer.
Protective case 1, base 2 material are macromolecular material, and described macromolecular material is flame-retardant PBT material.Iron core 32 material is silicon steel, and enamelled wire 33 is the copper cash of plated surface insulating varnish.Have insulating barrier between iron core 32 and enamelled wire 33, insulating layer material is epoxy resin hard coat or polyester film or PVC.
The above embodiment is technical conceive of the present utility model, and the usual change that those skilled in the art carry out within the scope of technical solutions of the utility model and replacement all should be included in protection range of the present utility model.
Claims (6)
1. an open type current transformer, comprise base, it is characterized in that: described base ring set has protective case, coil is provided with in the protective case cavity of described protective case, described coil connects draws wire, described protective case and base are provided with the protective case through hole and base plate through holes that communicate, described protective case are provided with draw-in groove, described base is provided with described draw-in groove with the use of draw-in groove protruding.
2. open type current transformer according to claim 1, it is characterized in that: described protective case comprises the upper protective case of annular and lower protective case, described upper protective case comprises upper left protective case and upper right protective case, described lower protective case comprises lower-left protective case and bottom right protective case, the side of described upper left protective case, upper right protective case, lower-left protective case and bottom right protective case is hinged on hollow copper post by rotating circular shaft, the opposite side of described upper left protective case, upper right protective case, lower-left protective case and bottom right protective case is threaded by protective case screw hole, and the side of described protective case screwed hole is provided with opening.
3. open type current transformer according to claim 2, is characterized in that: described upper left protective case and upper right protective case are provided with protective case groove, and described lower-left protective case and bottom right protective case are provided with the protective case projection with described protective case groove fit.
4. open type current transformer according to claim 2, is characterized in that: described rotation circular shaft is provided with breach, and described hollow copper post is provided with circular hole.
5. open type current transformer according to claim 2, it is characterized in that: described base comprises the lower bottom base of band pedestal lobe and the upper bed-plate of band base groove, be provided with base cavity pocket in described upper bed-plate and lower bottom base, described upper bed-plate be provided with base screw hole.
6. open type current transformer according to claim 2, is characterized in that: described coil comprises coil and lower coil, and described upper coil and lower coil comprise the iron core with insulating barrier, and described iron core periphery holds enamelled wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912597.7U CN205080999U (en) | 2015-11-16 | 2015-11-16 | Open type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912597.7U CN205080999U (en) | 2015-11-16 | 2015-11-16 | Open type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205080999U true CN205080999U (en) | 2016-03-09 |
Family
ID=55433386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520912597.7U Expired - Fee Related CN205080999U (en) | 2015-11-16 | 2015-11-16 | Open type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205080999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346270A (en) * | 2018-10-23 | 2019-02-15 | 河北中开明泰电气设备有限公司 | A kind of environment-friendly type assembly plastic housing and mutual inductor |
-
2015
- 2015-11-16 CN CN201520912597.7U patent/CN205080999U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346270A (en) * | 2018-10-23 | 2019-02-15 | 河北中开明泰电气设备有限公司 | A kind of environment-friendly type assembly plastic housing and mutual inductor |
| CN109346270B (en) * | 2018-10-23 | 2020-04-17 | 河北中开明泰电气设备有限公司 | Environment-friendly assembled plastic shell and mutual inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160309 Termination date: 20171116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |