CN102360871B - Mutual inductor packaging assembly - Google Patents
Mutual inductor packaging assembly Download PDFInfo
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- CN102360871B CN102360871B CN2011102429361A CN201110242936A CN102360871B CN 102360871 B CN102360871 B CN 102360871B CN 2011102429361 A CN2011102429361 A CN 2011102429361A CN 201110242936 A CN201110242936 A CN 201110242936A CN 102360871 B CN102360871 B CN 102360871B
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- busbar
- housing
- package assembling
- instrument transformer
- inner housing
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Abstract
The invention relates to a mutual inductor packaging assembly which belongs to the technical field of low-voltage electrical appliances. The mutual inductor packaging assembly comprises a shell, a current mutual inductor and a voltage sampling circuit. The mutual inductor packaging assembly is characterized in that the middle of the shell is provided with a conducting bus abdicating hole for installing the mutual inductor packaging assembly on a conducting bus of a circuit breaker; an inner shell is formed on the shell and surrounds the periphery of the conducting bus abdicating hole; an accommodating cavity is formed between the outer wall of the inner shell and the inner wall of the shell; the current mutual inductor is packaged in the accommodating cavity; and the voltage sampling circuit is installed on the outer wall of the inner shell and electrically connected with the conducting bus. The mutual inductor packaging assembly has the advantages of being more convenient for installation, saving the internal space of the circuit breaker and improving safety.
Description
Technical field
The invention belongs to the low voltage electrical apparatus technology field, be specifically related to a kind of instrument transformer package assembling that is used for circuit breaker
Background technology
instrument transformer is to utilize certain principle to carry out the equipment of voltage, current transformation, is most important contact original paper between primary system and the electrical secondary system.The current transformer and the voltage transformer that are applied at present on the circuit breaker mostly adopt independent installation when mounted, and the elementary input of voltage transformer is generally gone into by the secondary connection termination of circuit breaker, have taken the secondary connection terminal of circuit breaker on the one hand; On the other hand owing to voltage transformer generally is installed on the inner pedestal of circuit breaker; Taken the circuit breaker inner space, be unfavorable for realizing the miniaturization of circuit breaker, and installed loaded down with trivial details; The voltage measurement precision is difficult for improving, and security reliability is poor.
To above-mentioned existing problems, the applicant has carried out good try, has found the way that solves the problems of the technologies described above, and the technical scheme that will introduce below produces under this background
Summary of the invention
the object of the present invention is to provide a kind of instrument transformer package assembling, and it does not only take the inner space of circuit breaker pedestal, helps realizing the miniaturization of circuit breaker, and easy for installation, and security reliability is high.
the objective of the invention is to reach like this; A kind of instrument transformer package assembling; Comprise housing, current transformer and voltage sampling circuit; Be characterized in: the centre of said housing offers one and is used for the instrument transformer package assembling is installed to the busbar resigning hole on the busbar of circuit breaker, constitutes an inner housing on the described housing and around said busbar resigning hole, between the inwall of the outer wall of said inner housing and said housing, constitutes a cavity volume; Described current transformer is packaged in the described cavity volume; Described voltage sampling circuit is installed in the outer wall place of said inner housing, and is electrically connected with busbar.
are in a specific embodiment of the present invention; Described voltage sampling circuit comprises electronic circuit board and the copper spring that is used for voltage sample; Wherein: be welded with high-tension resistive on the described electronic circuit board; One end of described copper spring is installed on the electronic circuit board, and the other end of copper spring passes that inner housing probes in the described busbar resigning hole and contacts with busbar in the busbar resigning hole.
are in another specific embodiment of the present invention; Be formed with on the outer wall of said inner housing one be used to install voltage sampling circuit draw-in groove; On wall body, offer an opening corresponding to the inner housing at said draw-in groove place; Described opening is used to make described busbar resigning hole and described draw-in groove to connect each other, and described copper spring places described opening.
are in another specific embodiment of the present invention; Described current transformer comprises measurement coil and the energy line coil assembly in the cavity volume that places housing, separates with high-temperature insulation material between described measurement coil and the described energy line coil assembly and fixes through the silica gel embedding.
are gone back in the specific embodiment of the present invention, and described energy line coil assembly comprises silicon steel sheet and is arranged in the energy coil on the silicon steel sheet.
in of the present invention and then specific embodiment, in the described cavity volume and along the inwall of housing bottom constitute one be used to install said measurement coil groove.
the present invention is owing to adopt technique scheme, and one of beneficial effect that has, voltage sample partly place in the current transformer, forms the instrument transformer package assembling, installs more convenient; Two, since voltage signal directly by busbar sampling, the secondary connection end of circuit breaker need not be equipped with the binding post that is used to insert voltage signal, can effectively save secondary connection end terminal, has saved the circuit breaker inner space; Three, voltage sample uses the mode of high-precision high voltage resistance Direct Sampling, voltage signal from busbar sampling back through directly sending into intelligent controller behind the high-precision high voltage resistance, as long as improve resistance precision; Can effectively improve the voltage measurement precision; After high-precision high voltage resistance summation current transformer was packaged in same instrument transformer, all from the busbar sampling, what instrument transformer was exported all was weak electric signal for voltage, current signal; Save the circuit breaker inner space, and improved fail safe.
Description of drawings
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is the structural representation of housing of the present invention.
Fig. 3 is an application examples structure diagram of the present invention.
Among
figure: 1. housing, 11. busbar resigning holes, 12. cavity volumes, 13. inner housings, 131. draw-in grooves, 132. openings, 14. grooves; 2. current transformer, 21. energy line coil assemblies, 211. silicon steel sheets, 212. energy coils, 22. are measured coil; 3. voltage sampling circuit, 31. electronic circuit boards, 32. copper springs; 4. busbar; 5. current signal, power supply signal go between; 6. voltage signal goes between.
Embodiment
Technical spirit of the present invention and beneficial effect can fully be understood in order to make the public in
; The applicant will combine the accompanying drawing specific embodiments of the invention to describe in detail below; But the applicant is not the restriction to technical scheme to the description of embodiment, anyly makes form but not the variation of essence all should be regarded as protection scope of the present invention according to the present invention design.
see also Fig. 1 and Fig. 2, and a kind of instrument transformer package assembling comprises housing 1, current transformer 2 and voltage sampling circuit 3.The centre of said housing 1 offers a busbar resigning hole 11; One side of said housing 1 and around said busbar resigning hole 11, constitute an inner housing 13; Between the inwall of the outer wall of said inner housing 13 and said housing 1, constitute a cavity volume 12; On the outer wall of said inner housing 13, be formed with a draw-in groove 131; On the wall body corresponding to the inner housing 13 at said draw-in groove 131 places, offer an opening 132, this opening 132 is used to make described busbar resigning hole 11 to connect each other with described draw-in groove 131, in described cavity volume 12 and along the inwall of housing 1 bottom, constitutes a groove 14.Described current transformer 2 comprises the measurement coil 22 and energy line coil assembly 21 that is packaged in the cavity volume 12; Described energy line coil assembly 21 comprises silicon steel sheet 211 and is arranged in the energy coil 212 on the silicon steel sheet 211 that described measurement coil 22 places in the groove 14 of housing 1.Described voltage sampling circuit 3 comprises the electronic circuit board 31 and copper spring 32 that is used for voltage sample, and wherein: high-precision high voltage resistance has been welded on the described electronic circuit board 31,
Electronic circuit board 31 is installed in the draw-in groove 131; Copper spring 32 places described opening 132; One end of copper spring 32 is installed on the electronic circuit board 31, and the other end of copper spring 32 probes in the described busbar resigning hole 11 and with busbar resigning hole 11 interior busbars 4 and contacts.
Fig. 1 and Fig. 2 please be continued to consult in
; Narrate installation process of the present invention: the electronic circuit board 31 that copper spring 32 at first will be installed is packed in the draw-in groove 131 of inner housing 13; Then the measurement coil 22 with current transformer 2 is installed in the groove 14 of housing 1; And then the energy line coil assembly 21 that will comprise energy coil 212 and silicon steel sheet 211 is packed in the cavity volume 12 of housing 1; Separate with high-temperature insulation material between measurement coil 22 and the energy line coil assembly 21, install the back and fix with the silica gel embedding.Described current transformer 2 separates through housing 1 with electronic circuit board 31, and housing generally adopts the thermoplastic injection mo(u)lding of high temperature resistant and good insulation preformance, and thickness of insulating layer is equal to or greater than 2.5mm.
Application examples
see also Fig. 3, and the instrument transformer package assembling is installed in through busbar resigning hole 11 on the busbar 4 of circuit breaker, and copper spring 32 reliably contacts with busbar 4 during installation.The current signal of instrument transformer package assembling, power supply signal lead-in wire 5 are received the input of intelligent controller; Voltage signal is from busbar 4 up-samplings;, by intelligent controller electric current, voltage signal are reduced again and show and handle after voltage signal lead-in wire 6 is received the input of intelligent controller through the step-down of high-precision high voltage resistance.
Circuit breaker had just had current measurement and voltage measurement function simultaneously after
installed the instrument transformer package assembling.
In sum, technical scheme provided by the invention has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant
Claims (5)
1.
a kind of instrument transformer package assembling; Comprise housing (1), current transformer (2) and voltage sampling circuit (3); It is characterized in that: the centre of said housing (1) offers one and is used for the instrument transformer package assembling is installed to the busbar resigning hole (11) on the busbar (4) of circuit breaker; Described housing (1) is gone up and around said busbar resigning hole (11), is constituted an inner housing (13), between the inwall of the outer wall of said inner housing (13) and said housing (1), constitutes a cavity volume (12); Described current transformer (2) is packaged in the described cavity volume (12); Described voltage sampling circuit (3) is installed in the outer wall place of said inner housing (13), and is electrically connected with busbar (4); Described voltage sampling circuit (3) comprises electronic circuit board (31) and the copper spring (32) that is used for voltage sample; Wherein: described electronic circuit board is welded with high-tension resistive on (31); One end of described copper spring (32) is installed on the electronic circuit board (31), and the other end of copper spring (32) passes that inner housing (13) probes in the described busbar resigning hole (11) and contacts with busbar (4) in the busbar resigning hole (11).
2.
a kind of instrument transformer package assembling according to claim 1; It is characterized in that being formed with one on the outer wall of said inner housing (13) is used to install the draw-in groove (131) of voltage sampling circuit (3); On the wall body of the inner housing of locating corresponding to said draw-in groove (131) (13), offer an opening (132); Described opening (132) is used to make described busbar resigning hole (11) and described draw-in groove (131) to connect each other, and described copper spring (32) places described opening (132).
3.
a kind of instrument transformer package assembling according to claim 1; It is characterized in that described current transformer (2) comprises measurement coil (22) and the energy line coil assembly (21) in the cavity volume (12) that places housing (1), separates with high-temperature insulation material between described measurement coil (22) and the described energy line coil assembly (21) and fixes through the silica gel embedding.
4.
a kind of instrument transformer package assembling according to claim 3 is characterized in that described energy line coil assembly (21) comprises silicon steel sheet (211) and is arranged in the energy coil (212) on the silicon steel sheet (211).
5.
A kind of instrument transformer package assembling according to claim 3, it is characterized in that in the described cavity volume (12) and along the inwall of housing (1) bottom constitute one be used to install said measurement coil (22) groove (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102429361A CN102360871B (en) | 2011-08-23 | 2011-08-23 | Mutual inductor packaging assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102429361A CN102360871B (en) | 2011-08-23 | 2011-08-23 | Mutual inductor packaging assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102360871A CN102360871A (en) | 2012-02-22 |
| CN102360871B true CN102360871B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102429361A Active CN102360871B (en) | 2011-08-23 | 2011-08-23 | Mutual inductor packaging assembly |
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| Country | Link |
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| CN (1) | CN102360871B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914737A (en) * | 2016-05-11 | 2016-08-31 | 国网北京市电力公司 | Power distribution cabinet and method and device of controlling power distribution cabinet to execute loop closing operation |
| CN108074711A (en) * | 2016-11-16 | 2018-05-25 | 天津光信光电科技有限公司 | A kind of preparation process of current transformer cover body |
| CN107146701B (en) * | 2017-06-28 | 2018-11-02 | 国网山东省电力公司烟台供电公司 | A kind of mutual inductor and termination |
| CN108333414B (en) * | 2018-03-29 | 2024-04-26 | 上海麦豆电气有限公司 | Current and voltage acquisition module |
| CN109142948A (en) * | 2018-07-20 | 2019-01-04 | 盐城工学院 | A kind of detachable sliding rail detection of electrical leakage robot device |
| CN112768198B (en) * | 2020-12-24 | 2022-04-05 | 江金北(北京)自动化技术有限公司 | Mutual inductor winding structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2494552Y (en) * | 2001-08-23 | 2002-06-05 | 常熟开关厂 | Current transformer |
| CN2515780Y (en) * | 2001-11-28 | 2002-10-09 | 常熟开关厂 | Current transformer |
| CN101615501A (en) * | 2008-06-24 | 2009-12-30 | 湖北盛佳电器设备有限公司 | Voltage, current integral sampling device |
| CN201910327U (en) * | 2010-11-30 | 2011-07-27 | 桐乡市伟达电子有限公司 | Electricity-stealing-preventive combined mutual inductor |
| CN202189668U (en) * | 2011-08-23 | 2012-04-11 | 常熟开关制造有限公司(原常熟开关厂） | Mutual inductor encapsulation component |
-
2011
- 2011-08-23 CN CN2011102429361A patent/CN102360871B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2494552Y (en) * | 2001-08-23 | 2002-06-05 | 常熟开关厂 | Current transformer |
| CN2515780Y (en) * | 2001-11-28 | 2002-10-09 | 常熟开关厂 | Current transformer |
| CN101615501A (en) * | 2008-06-24 | 2009-12-30 | 湖北盛佳电器设备有限公司 | Voltage, current integral sampling device |
| CN201910327U (en) * | 2010-11-30 | 2011-07-27 | 桐乡市伟达电子有限公司 | Electricity-stealing-preventive combined mutual inductor |
| CN202189668U (en) * | 2011-08-23 | 2012-04-11 | 常熟开关制造有限公司(原常熟开关厂） | Mutual inductor encapsulation component |
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| Publication number | Publication date |
|---|---|
| CN102360871A (en) | 2012-02-22 |
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