CN204204621U - Current transformer - Google Patents
Current transformer Download PDFInfo
- Publication number
- CN204204621U CN204204621U CN201420653650.1U CN201420653650U CN204204621U CN 204204621 U CN204204621 U CN 204204621U CN 201420653650 U CN201420653650 U CN 201420653650U CN 204204621 U CN204204621 U CN 204204621U
- Authority
- CN
- China
- Prior art keywords
- housing
- interface
- wiring board
- current transformer
- iron core
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920013636 polyphenyl ether polymer Polymers 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 239000007937 lozenge Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 101150012579 ADSL gene Proteins 0.000 description 1
- 102100020775 Adenylosuccinate lyase Human genes 0.000 description 1
- 108700040193 Adenylosuccinate lyases Proteins 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a kind of current transformer, its drip irrigation device comprises housing, iron core and secondary terminals, described iron core is placed in housing, coil is wound with outside iron core, it is characterized in that: be provided with for being the wiring board of voltage signal by current conversion in described housing, described wiring board input connecting coil output, wiring board output connecting secondary terminal, described secondary terminals is RJ45 interface, housing is provided with opening, and described RJ45 interface is placed in opening, aims to provide a kind of easy to connect, contact stabilization, the current transformer of highly versatile.
Description
Technical field
The utility model relates to a kind of current transformer, and more particularly, it relates to a kind of instrument transformer big current being converted to low-voltage signal.
Background technology
The secondary terminals of existing instrument transformer is generally the conducting strip of metal material, usually needs to connect wire by trip bolt and make it be connected with other external equipments during use.In recent years along with the various electronic electric energy meter of progress of Digital Electronic Technique and some portable electronic measuring equipments are just progressively used more widely, the accuracy that such connected mode seems very inconvenient and the unstable easily impact of contact between instrument transformer and equipment is measured.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of easy to connect, contact stabilization, the current transformer of highly versatile.
For achieving the above object, the utility model provides following technical scheme: a kind of current transformer, comprise housing, iron core and secondary terminals, described iron core is placed in housing, is wound with coil outside iron core, described secondary terminals is RJ45 interface, be provided with for being the wiring board of voltage signal by current conversion in described housing, described wiring board input connecting coil output, wiring board output connects RJ45 interface, housing is provided with opening, and described RJ45 interface is placed in opening
The utility model is set to further: described RJ45 joint weld, in wiring board output, is provided with the position limiting structure for preventing RJ45 interface from loosening in described housing.
The utility model is set to further: described position limiting structure is the cannelure arranged inside shell nozzle, and described RJ45 interface is embedded in cannelure.
The utility model is set to further: described housing adopts polyphenyl ether material to make.
Script secondary terminals exports and exports as voltage signal for size of current changes into by the utility model, and be connected with external equipment by RJ45 port, compare traditional use conducting strip to be connected external equipment by trip bolt mode with wire convenient, connection between product and external equipment is more firm, and use RJ45 port to strengthen the versatility of product as secondary terminals, make its existing various electronic electric energy meter of suitable connection and portable electronic measuring equipment more.
Accompanying drawing explanation
Fig. 1 is the structure diagram of the utility model current transformer embodiment;
Fig. 2 is the utility model current transformer embodiment internal structure schematic diagram;
Fig. 3 is the structural representation of the utility model current transformer embodiment housing.
Description of reference numerals: 1, housing; 2, iron core; 3, wiring board; 4, RJ45 interface; 5, opening; 6, position limiting structure.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model current transformer embodiment is described further.
A kind of current transformer, comprise housing 1, iron core 2 and secondary terminals, iron core 2 is placed in housing 1, be wound with coil (not shown) outside iron core 2, secondary terminals is RJ45 interface 4, is provided with the wiring board 3 for by current conversion being voltage signal in described housing 1, wiring board 3 input connecting coil output, wiring board 3 output connects RJ45 interface 4, and housing 1 is provided with opening 5, RJ45 interface 4 and is placed in opening 5.Exporting as size of current changes output into by wiring board 3 by script secondary terminals is that (the primary current scope of application of the product of current our factory's exploitation is 60 to 1600A to voltage signal, secondary rated output voltage is generally 330mV), and be connected with external equipment by RJ45 port, compare traditional use conducting strip to be connected external equipment by trip bolt mode with wire convenient, the connection between product and external equipment is more firm; RJ45 interface 4 is also called the connection that crystal head is widely used in the LA Management Room netting twine of local area network (LAN) and ADSL broadband access network user, RJ45 interface 4 is used to strengthen the versatility of product as the secondary terminals of product, make its existing various electronic electric energy meter of suitable connection and portable electronic measuring equipment, more be convenient to realize the automatically-monitored of circuit, realize the safe operation of power transmission and distribution.
RJ45 interface 4 is welded in wiring board 3 output, is provided with the position limiting structure 6 for preventing RJ45 interface 4 from loosening in housing 1.Position limiting structure 6 can be the cannelure arranged at the marginal position of housing 1 inside opening 5, RJ45 interface 4 is made to be embedded in cannelure, carrying out spacing when extracting wire from RJ45 interface 4 to RJ45 interface 4 user, preventing RJ45 interface 4 from loosening with the pad of wiring board 3 and then being damaged; Position limiting structure 6 also can be set to the lozenges abutted against with the lozenges on RJ45 interface 4 inside the lozenges that arranges on the sidewall of RJ45 interface 4 and housing 1, prevents from making RJ43 interface and wiring board 3 loosen when extracting wire by the mutual abutting of two lozenges.Because the position limiting structure 6 arranging corresponding lozenges inside housing 1 and on RJ45 interface 4 sidewall needs to transform original RJ45 interface 4 mould, and offer inside housing 1 cannelure be more convenient to processing, therefore preferably offer cannelure in the inner side of housing 1 opening 5 position in the present embodiment.
Housing 1 adopts polyphenyl ether material to make.Because polyphenylene oxide has excellent dimensional stability, and can within the scope of-127 ~ 121 DEG C Long-Time Service, serviceability temperature scope is wide, and its dielectric constant and dielectric loss are also lower, and housing 1 adopts polyphenyl ether material making to improve accuracy and the scope of application of product measurement.
Above-described embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection range of the present utility model.
Claims (4)
1. a current transformer, comprise housing, iron core and secondary terminals, described iron core is placed in housing, be wound with coil outside iron core, it is characterized in that: described secondary terminals is RJ45 interface, be provided with for being the wiring board of voltage signal by current conversion in described housing, described wiring board input connecting coil output, wiring board output connects RJ45 interface, and housing is provided with opening, and described RJ45 interface is placed in opening.
2. current transformer according to claim 1, is characterized in that: described RJ45 joint weld, in wiring board output, is provided with the position limiting structure for preventing RJ45 interface from loosening in described housing.
3. current transformer according to claim 2, is characterized in that: described position limiting structure is the cannelure arranged inside shell nozzle, and described RJ45 interface is embedded in cannelure.
4. the current transformer according to claim 1 or 2 or 3, is characterized in that: described housing adopts polyphenyl ether material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420653650.1U CN204204621U (en) | 2014-10-31 | 2014-10-31 | Current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420653650.1U CN204204621U (en) | 2014-10-31 | 2014-10-31 | Current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204621U true CN204204621U (en) | 2015-03-11 |
Family
ID=52662552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420653650.1U Expired - Fee Related CN204204621U (en) | 2014-10-31 | 2014-10-31 | Current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204204621U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110875121A (en) * | 2019-12-11 | 2020-03-10 | 山东铂晶智能科技有限公司 | Three-phase integrated current transformer |
| EP4553866A1 (en) * | 2023-11-10 | 2025-05-14 | Celsa Messgeräte GmbH | Current transformer with integrated short-circuit bridge |
-
2014
- 2014-10-31 CN CN201420653650.1U patent/CN204204621U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110875121A (en) * | 2019-12-11 | 2020-03-10 | 山东铂晶智能科技有限公司 | Three-phase integrated current transformer |
| CN110875121B (en) * | 2019-12-11 | 2025-04-01 | 山东铂晶智能科技有限公司 | Three-phase integrated current transformer |
| EP4553866A1 (en) * | 2023-11-10 | 2025-05-14 | Celsa Messgeräte GmbH | Current transformer with integrated short-circuit bridge |
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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: 20150311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |