CN201754369U - Electronic current transformer body - Google Patents
Electronic current transformer body Download PDFInfo
- Publication number
- CN201754369U CN201754369U CN2010202316379U CN201020231637U CN201754369U CN 201754369 U CN201754369 U CN 201754369U CN 2010202316379 U CN2010202316379 U CN 2010202316379U CN 201020231637 U CN201020231637 U CN 201020231637U CN 201754369 U CN201754369 U CN 201754369U
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- China
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- electronic current
- mutual inductor
- current mutual
- shell body
- inductor device
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Abstract
The utility model discloses an electronic current transformer body which comprises a shell body with a lower opening at the bottom and a top port at the top, and a shell cover covered at the top end of the shell body. The top end of the shell body is provided with a fixed plate for supporting a current signal box of a built-in printed circuit board (PCB); supporting rods which are respectively used for supporting a low-power current transformer (LPCT) coil and a Rogowski coil are vertically arranged in the shell body and below the fixed plate; and a fixing structure for supporting and fixing both ends of a conducting rod which horizontally penetrates through the shell body is correspondingly embedded into two corresponding side walls of the shell body. The electronic current transformer body has simple structure, reasonable arrangement and small occupied space; the PCB, the coils, a conductive wire and other electronic components can be reasonably integrated in the limited closed space formed by the shell body and the shell cover, various components are combined into a whole body by means of the structural characteristics of the shell body and the shell cover, thereby forming an essential working unit of the electronic current transformer. In the utility model, various parts are convenient to process; the structure is compact; and the assembling process is simple and easy.
Description
Technical field
The utility model belongs to a kind of electronic current mutual inductor, particularly relates to a kind ofly can in limited space the electronic current mutual inductor device body of electronic components such as PCB circuit board, coil, lead being set rationally.
Background technology
Electric power mutual-inductor comprises the voltage transformer summation current transformer, is the visual plant that carries out electric energy metrical in the electric power system and obtain protection, control signal, and the fail safe and the economical operation of its precision and reliability and electric power system are closely related.
Traditional electromagnetic type electric power mutual-inductor is faced with acid test at electrical network in big capacity, superhigh pressure evolution, expose a series of serious problems: insulation system becomes increasingly complex, and cost also is index to be increased along with the rising of electric pressure; Range of dynamic measurement is little, frequency band is narrow; Most of insulating oil that relies on is done main insulation, thereby inflammable and explosive.There is the possibility of ferro resonance in voltage transformer, causes overvoltage easily; There is the magnetic saturation problem in current transformer, becomes very outstanding in hicap.Not only numerical value is very big for the short circuit current of big capacity, extra high voltage system, and contains very big aperiodic component.Excessive short circuit current causes the current transformer core supersaturation, and exciting current becomes the increase of tens times even hundred times, can cause the serious distortion of Current Transformer Secondary current values and waveform, causes the misoperation of system protection then.In addition, the output signal of traditional instrument transformer 100V or 5A can not directly be connected with digital measuring device, microcomputer protecting device.The problems referred to above explanation, traditional electromagnetic transformer has been difficult to satisfy the development needs such as online detection, high accuracy failure diagnosis, computer control and management of modern power systems, and it is imperative to seek better novel electric power instrument transformer.
Electronic mutual inductor is as instrument transformer of new generation, and at aspects such as operation power, the automations of transformation substations, traditional relatively instrument transformer has very remarkable advantages, is the big focus in the industry.Therefore, be devoted to the research work of this instrument transformer both at home and abroad.
Electronic mutual inductor stable when the needs electronic technology guarantees requires the mechanical structure that matches with it must compact and reasonable, so as arranging electronic element, reduced volume in order, the useful life of raising electronic mutual inductor.
Summary of the invention
The utility model provides a kind of and can in limited space the electronic current mutual inductor device body of electronic components such as PCB circuit board, coil, lead be set rationally for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of electronic current mutual inductor device body, comprise that the bottom is formed with under shed, the top is formed with the body of top port and is placed on the cap on body top, the top of described body is provided with the fixed head of the current signal box that is used to support built-in pcb board, the below that is positioned at fixed head in the body is vertically installed with the support bar that is used for supporting respectively LPCT coil and Luo-coil, and corresponding embedding is useful on and supports and fixing horizontal runs through the fixed structure at the conducting rod two ends of body on two corresponding sidewalls of described body.
The top port of described body is formed with the outer edge of outside protrusion respectively and to projecting inward inside edge, has the fixing hole that is used for fixing cap on the described outer edge, has the through hole that is used for fixing fixed head on the described inside edge.
Be provided with 4 support bars in the described body, the body bottom that is fixed on of the bottom correspondence of described 4 support bars forms on the periphery of bottom opening, and the top of described 4 support bars is used for fixed support LPCT coil and Luo-coil respectively.
Described body bottom forms and correspondingly on the periphery of bottom opening is formed with four screws, and the bottom of described support bar is formed with the external screw thread that combines with described screw.
Be formed with the chimb of outside protrusion on the periphery of described cap, be formed with the corresponding fixing hole of fixing hole on the outer edge with body on the described chimb.
The fixed structure that described correspondence is embedded on the body sidewall includes insulation system and the corresponding uninsulated structure that is arranged at opposite side that embeds on the side sidewall.
Described insulation system includes the insulating press boards and the seal washer that is enclosed within on the insulating press boards that the interior centre of through hole that is embedded in the body sidewall is formed with the through hole that runs through conducting rod, and described insulating press boards combines by bolt with seal washer.
Described uninsulated structure comprises that described body and end pressing plate correspondence are formed with the through hole that runs through conducting rod by being bolted to the end pressing plate on the body lateral surface.
Advantage and the good effect that the utlity model has are: electronic current mutual inductor device body of the present utility model, simple in structure, be provided with rationally, occupy little space, can be in the limited confined space of forming by body and cap, electronic components such as reasonable integration PCB circuit board, coil, lead are by the design feature of body and cap, each element is formed a whole, must obligato working cell thereby form electronic current mutual inductor.It is simple that each parts of electronic current mutual inductor device body of the present utility model are convenient to processing, compact conformation, assembling process.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the vertical view of body.
Label among the figure is respectively:
Terminal of 1-; The 2-sign board; The 3-body; The 4-LPCT coil; The 5-Luo-coil; The 6-conducting rod; 7-end pressing plate; The 8-insulating press boards; The 9-seal washer; The 10-cap; 11-current signal box; The isometric stud of 12-; The 13-fixed head; The 14-support bar; The 15-through hole; The 16-outer edge; The 17-inside edge; The 18-fixing hole; The 19-bottom opening; The 201-insulation system; The 202-uninsulated structure; The 21-chimb; The 22-top port.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, enumerate following examples now, and conjunction with figs. describes in detail of the present utility model as follows:
As Fig. 1, Fig. 2, shown in Figure 3, electronic current mutual inductor device body of the present utility model, comprise that the bottom is formed with under shed 19, the top is formed with the body 3 of top port 22 and is placed on the cap 10 on body 3 tops, the top of described body 3 is provided with the fixed head 13 of the current signal box 11 that is used to support built-in pcb board, the below that is positioned at fixed head 13 in the body 3 is vertically installed with the support bar 14 that is used for supporting respectively LPCT coil 4 and Luo-coil 5, and described support bar 14 also can be realized the location.Corresponding embedding is useful on and supports and fixing horizontal runs through the fixed structure 201,202 at conducting rod 6 two ends of body 3 on two corresponding sidewalls of described body 3.
The top port of described body 3 is formed with the outer edge 16 of outside protrusion respectively and to projecting inward inside edge 17, have the fixing hole 18 that is used for fixing cap 10 on the described outer edge 16, have the through hole 15 that is used for fixing fixed head 13 on the described inside edge 17.Be formed with the chimb 21 of outside protrusion on the periphery of described cap 10, be formed with the fixing hole 18 corresponding fixing holes on the outer edge 16 with body 3 on the described chimb 21.
Be provided with 4 support bars 14 in the described body 3, the bottom of described 4 support bars 14, body 3 bottoms that are fixed on of rectangular distribution form on the periphery of bottom opening 19, and the top of described 4 support bars 14 is used for fixed support LPCT coil 4 and Luo-coil 5 respectively.
Wherein, described body 3 bottoms form and correspondingly on the periphery of bottom opening 19 to be formed with four screws, and the bottom of described support bar 14 is formed with the external screw thread that combines with described screw.The double-screw bolt of described support bar part cooperate with body bottom thread hole finish fixing.
The fixed structure 201,202 that described correspondence is embedded on body 3 sidewalls includes insulation system 201 and the corresponding uninsulated structure that is arranged at opposite side 202 that embeds on the side sidewall.
Described insulation system 201 includes centre in the through hole that is embedded in body 3 sidewalls and is formed with the insulating press boards 8 of the through hole that runs through conducting rod 6 and is enclosed within seal washer 9 on the insulating press boards 8, and described insulating press boards 8 and seal washer 9 combine by bolt.
Described uninsulated structure 202 comprises by isometric stud 15 and is fixed on end pressing plate 7 on body 3 lateral surfaces, described body 3 is at the thickness at the described uninsulated structure 202 places thickness greater than other position, and body herein 3 and end pressing plate 7 correspondences are formed with the through hole that runs through conducting rod 6.
The assembling process of electronic current mutual inductor device body of the present utility model is:
At first, four support bars 14 are tightened be fixed in body 3 inside, further two coils are installed on the support bar 14 by screw;
Secondly, conducting rod 6 is run through fixed structure 201,202 and the LPCT coil 4 and the Luo-coil 5 of body 3 both sides, and fix, then two terminals 1 are set in the both sides of conducting rod 6;
Once more, fixed head 13 is placed in body 3 top platforms by screw, thus for current signal box 11 provides support, fixed current signal box 11, and finish corresponding installation work;
At last, build cap 10, finish the assembly work of whole instrument transformer device body.
Claims (8)
1. electronic current mutual inductor device body, comprise that the bottom is formed with under shed (19), the top is formed with the body (3) of top port (22) and is placed on the cap (10) on body (3) top, it is characterized in that: the top of described body (3) is provided with the fixed head (13) of the current signal box (11) that is used to support built-in pcb board, the below that is positioned at fixed head (13) in the body (3) is vertically installed with the support bar (14) that is used for supporting respectively LPCT coil (4) and Luo-coil (5), and corresponding embedding is useful on and supports and fixing horizontal runs through the fixed structure (201 at conducting rod (6) two ends of body (3) on two corresponding sidewalls of described body (3), 202).
2. electronic current mutual inductor device body according to claim 1, it is characterized in that: the top port of described body (3) is formed with the outer edge (16) of outside protrusion respectively and to projecting inward inside edge (17), have the fixing hole (18) that is used for fixing cap (10) on the described outer edge (16), have the through hole (15) that is used for fixing fixed head (13) on described inside edge (17).
3. electronic current mutual inductor device body according to claim 1, it is characterized in that: be provided with 4 support bars (14) in the described body (3), body (3) bottom that is fixed on of the bottom correspondence of described 4 support bars (14) forms on the periphery of bottom opening (19), and the top of described 4 support bars (14) is used for fixed support LPCT coil (4) and Luo-coil (5) respectively.
4. electronic current mutual inductor device body according to claim 3, it is characterized in that: described body (3) bottom forms and correspondingly on the periphery of bottom opening (19) is formed with four screws, and the bottom of described support bar (14) is formed with the external screw thread that combines with described screw.
5. electronic current mutual inductor device body according to claim 2, it is characterized in that: be formed with the chimb (21) of outside protrusion on the periphery of described cap (10), be formed with the corresponding fixing hole of fixing hole (18) on the outer edge (16) with body (3) on the described chimb (21).
6. electronic current mutual inductor device body according to claim 1 is characterized in that: the fixed structure (201,202) that described correspondence is embedded on body (3) sidewall includes insulation system (201) and the corresponding uninsulated structure that is arranged at opposite side (202) that embeds on the side sidewall.
7. electronic current mutual inductor device body according to claim 6, it is characterized in that: the centre that described insulation system (201) includes in the through hole that is embedded in body (3) sidewall is formed with the insulating press boards (8) of the through hole that runs through conducting rod (6) and is enclosed within seal washer (9) on the insulating press boards (8), and described insulating press boards (8) combines by bolt with seal washer (9).
8. electronic current mutual inductor device body according to claim 6, it is characterized in that: described uninsulated structure (202) comprises that described body (3) and end pressing plate (7) correspondence are formed with the through hole that runs through conducting rod (6) by being bolted to the end pressing plate (7) on body (3) lateral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202316379U CN201754369U (en) | 2010-06-22 | 2010-06-22 | Electronic current transformer body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202316379U CN201754369U (en) | 2010-06-22 | 2010-06-22 | Electronic current transformer body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201754369U true CN201754369U (en) | 2011-03-02 |
Family
ID=43622101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202316379U Expired - Fee Related CN201754369U (en) | 2010-06-22 | 2010-06-22 | Electronic current transformer body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201754369U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996512A (en) * | 2014-06-16 | 2014-08-20 | 重庆华虹仪表有限公司 | Low-voltage current transformer with rotary primary line bank |
| CN105321659A (en) * | 2015-12-09 | 2016-02-10 | 天津市百利纽泰克电气科技有限公司 | High-voltage side shielding shell of high-voltage electronic type current transformer |
| CN113687123A (en) * | 2021-08-27 | 2021-11-23 | 合肥科威尔电源系统股份有限公司 | Rogowski coil detection mechanism, detection device with Rogowski coil detection mechanism and detection method |
-
2010
- 2010-06-22 CN CN2010202316379U patent/CN201754369U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996512A (en) * | 2014-06-16 | 2014-08-20 | 重庆华虹仪表有限公司 | Low-voltage current transformer with rotary primary line bank |
| CN103996512B (en) * | 2014-06-16 | 2016-03-02 | 重庆华虹仪表有限公司 | Primary connection arranges rotatable low-voltage current mutual inductor |
| CN105321659A (en) * | 2015-12-09 | 2016-02-10 | 天津市百利纽泰克电气科技有限公司 | High-voltage side shielding shell of high-voltage electronic type current transformer |
| CN113687123A (en) * | 2021-08-27 | 2021-11-23 | 合肥科威尔电源系统股份有限公司 | Rogowski coil detection mechanism, detection device with Rogowski coil detection mechanism and detection method |
| CN113687123B (en) * | 2021-08-27 | 2024-05-28 | 科威尔技术股份有限公司 | Rogowski coil detection mechanism, detection device with same and detection method |
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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: 20110302 Termination date: 20150622 |
|
| EXPY | Termination of patent right or utility model |