CN103996512A - Low-voltage current transformer with rotary primary line bank - Google Patents
Low-voltage current transformer with rotary primary line bank Download PDFInfo
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- CN103996512A CN103996512A CN201410266886.4A CN201410266886A CN103996512A CN 103996512 A CN103996512 A CN 103996512A CN 201410266886 A CN201410266886 A CN 201410266886A CN 103996512 A CN103996512 A CN 103996512A
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- housing
- primary connection
- voltage current
- mutual inductor
- current mutual
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Abstract
The invention discloses a low-voltage current transformer with a rotary primary line bank. The low-voltage current transformer with the rotary primary line bank comprises a shell and a primary fixing plate, wherein the primary fixing plate is assembled on the shell and is separated from the shell, the primary line bank is fixedly assembled on the primary fixing plate, and the primary line bank is positioned on the shell in a rotary mode. According to the low-voltage current transformer with the rotary primary line bank, the structure is simple, using is convenient, the primary line bank can be positioned on the shell in a rotary mode, the situation that the adaptability is poor due to the wiring method that a primary line bank on a traditional low-voltage current transformer is fixed is avoided, the wiring method is flexible and changeable, and the adaptability is high.
Description
Technical field
The present invention relates to instrument transformer technical field, be specifically related to a kind of primary connection and arrange rotatable low-voltage current mutual inductor.
Background technology
At present, for measuring, the housing of the low-voltage current mutual inductor of metering and used for relay protection generally adopts mould single injection-molded, make to can not be split between fixed head and housing, and then the primary connection row of fit on will one be fixed, finally make a kind of housing can only fix a kind of primary connection row of specification, Granted publication number for CN203118752U patent name be to propose in a kind of low-voltage current mutual inductor, fixed head and instrument transformer housing are assembled after injection mo(u)lding respectively again, a fixed head that makes a housing can assemble different size adapts to the primary connection row of different no-load voltage ratios, although this structure makes the assembling of product realize diversification.But after assembling moulding, fixed head and primary connection row are all fixed positioned on housing, between primary connection row and housing, can not mutually rotate rotation, while causing wiring, only can carry out wiring, bad adaptability with a kind of mode of connection.
Summary of the invention
For above-mentioned weak point of the prior art, the present invention aims to provide a kind of primary connection and arranges rotatable low-voltage current mutual inductor, and primary connection row can rotate location on housing, and the mode of connection is flexible and changeable, and adaptability is good.
To achieve these goals, technical scheme of the present invention: primary connection is arranged rotatable low-voltage current mutual inductor, the fixed head that it comprises housing and is assemblied on this housing and arranges with this housing split, on this fixed head, be fixedly equipped with primary connection row, wherein, rotatable being positioned on described housing of a described fixed head.
Further, a described fixed head comprise through described housing shell wall and the once exclusive baffle plate of axial limiting on this housing outer wall, and be connected mutually with described once exclusive baffle plate and the once row Internal baffle of axial limiting in described inner walls, described once row, on Internal baffle, there is the locating piece that can be fixed positioned on described housing.
Further, described locating piece is fixed positioned on described housing by removable fasteners.
Further, have with a fixing hole of described housing and relatively rotate the columnar step axle coordinating on described once exclusive baffle plate, the described Internal baffle of once arranging is fixed on the end of this columnar step axle.
Further, in described inner walls both sides, be equipped with the described locating piece spacing limited step that rotates in a circumferential direction.
Further, shape angle in 90 ° between described two limited steps.
Further, on described primary connection row, be provided with this primary connection row is limited in to the projection in described housing.
Further, described housing is fastened and is formed by the first housing and the second housing.
Beneficial effect of the present invention: simple in structure, easy to use, primary connection row can rotate location on housing, has avoided the situation of the fixing bad adaptability that the mode of connection causes of the last line bank of conventional low current transformer, its mode of connection is flexible and changeable, and adaptability is good.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is vertical view of the present invention;
Fig. 2 be in Fig. 1 the first housing or the second housing with once arrange the assembling schematic diagram of Internal baffle;
Fig. 3 is the assembling schematic diagram between primary connection row and a fixed head in Fig. 1.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, further describe the present invention.
A kind of primary connection as described in Fig. 1-Fig. 3 is arranged rotatable low-voltage current mutual inductor, the fixed head 2 that it comprises housing 1 and is assemblied on this housing 1 and arranges with this housing 1 split, on this fixed head 2, be fixedly equipped with primary connection row 3, a described fixed head 2 is rotatable to be positioned on described housing 1.
Main design main points of the present invention are, are positioned on described housing 1 a described fixed head 2 is rotatable, because described primary connection row 3 is fixedly assemblied on a fixed head 2, that is to say that described primary connection arranges 3 rotatable being positioned on described housing 1.Make like this product that assembles in use, mode of connection variation, flexible and changeable, can adapt to the not wiring of collinear condition, adaptability is good.Under current low-voltage current mutual inductor is tending towards ripe prerequisite, although this design is relatively simple, to proposing how to strengthen this technical problem of adaptability of low-voltage current mutual inductor, be difficult to expect to possess creationary mentality of designing.
For housing 1, can fasten and form by the first housing 11 and the second housing 12, like this, described primary connection row 3 is run through and is positioned on described the first housing 11, the second housing 12 by described fixed head 2 correspondences respectively, this primary connection row 3 is rectangular slab, on a described fixed head 2, establish 3 rectangular openings that match with this primary connection row, this primary connection row 3 is on a fixed head 2 on the first housing 11, the second housing 12.In order to guarantee this primary connection row 3 stable position, on described primary connection row 3, be provided with 3 projections 31 that are limited in described housing 1 by this primary connection row, this projection 31 is in close proximity to the inner side of a described fixed head 2, quantity is two, a fixed head 2 on corresponding described the first housing 11, the second housing 12 respectively, and using the inner side of this fixed head 2 as spacing benchmark.That is to say primary connection row 3 is limited between described No. twice fixed heads 2, and then guarantee that this primary connection row 3 is positioned in described housing 1.
For a fixed head 2, specifically as shown in Figure 3, a described fixed head 2 comprise through described housing 1 shell wall and the once exclusive baffle plate 21 of axial limiting on this housing 1 outer wall, and be connected mutually and the once row Internal baffle 22 of axial limiting on described housing 1 inwall with described once exclusive baffle plate 21, described once row, on Internal baffle 22, there is the locating piece 221 that can be fixed positioned on described housing 1.Particularly, described once exclusive baffle plate 21, once arrange Internal baffle 22 and make by polycarbafil.Described once exclusive baffle plate 21 adopts spherical crown shape structure, and it is combined into the outward appearance of whole instrument transformer in conjunction with housing 1, elegant in appearance.And the described Internal baffle 22 of once arranging adopts column structure, thickness can be 4mm.During assembling, on described once exclusive baffle plate 21, have with a fixing hole of described housing 1 and relatively rotate the columnar step axle 23 coordinating, the described Internal baffle 22 of once arranging is fixed on the end of this columnar step axle 23, be that 23 rotations of columnar step axle are located on the shell wall of housing 1, form the revolute between a described fixed head 2 and housing 1.The axial limiting of this columnar step axle 23 mainly once exclusive baffle plate 21, once arrange the corresponding and outer wall of housing 1 of Internal baffle 22, the plane restriction between inwall.
Circumferential location for a fixed head 2, to rely on to be located at the locating piece 221 of once arranging on Internal baffle 22, on this locating piece 221, be drilled with screwed hole 222, and corresponding position is drilled with hole 102 on housing 1, can hole 102 according to the concrete installation situation of instrument transformer product, can be drilled with a plurality of, such as shown in this Fig. 2, in housing 1 inwall both sides, be all drilled with porose 102, for carrying out assembling and positioning with described locating piece 221.When primary connection row 3 rotates to corresponding position, described locating piece 221 is fixed positioned on described housing 1 by removable fasteners.
In addition, in described housing 1 inwall both sides, be equipped with the described locating piece 221 spacing limited step 101 that rotates in a circumferential direction.Because once arranging Internal baffle 22, be to operate in housing 1 inside, the rotary state of once arranging Internal baffle 22 for this in wiring process is that operator is invisible, therefore, and by the setting of this limited step 101, facilitate the rotary stopper that this is once arranged to Internal baffle 22, improved wiring efficiency.Preferably, shape angle in 90 ° between described two limited steps 101.
Certainly, in actual production assembling, for the hole 102 on housing 1, the setting of limited step 101 positions such as the order of magnitude such as grade, can specifically arrange by concrete enforcement wiring situation, to guarantee the high-adaptability of this product low-voltage current mutual inductor, the flexible and changeable property of wiring.
The technical scheme above embodiment of the present invention being provided is described in detail, applied specific case herein the principle of the embodiment of the present invention and execution mode are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the embodiment of the present invention; , for one of ordinary skill in the art, according to the embodiment of the present invention, in embodiment and range of application, all will change, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (8)
1. primary connection is arranged rotatable low-voltage current mutual inductor, comprise housing (1) and be assemblied in the fixed head (2) that this housing (1) is upper and arrange with this housing (1) split, at the upper primary connection that is fixedly equipped with of this fixed head (2), arrange (3), it is characterized in that: a described fixed head (2) is rotatable to be positioned on described housing (1).
2. primary connection according to claim 1 is arranged rotatable low-voltage current mutual inductor, it is characterized in that: a described fixed head (2) comprise through described housing (1) shell wall and the once exclusive baffle plate (21) of axial limiting on this housing (1) outer wall, and be connected mutually with described once exclusive baffle plate (21) and the once row Internal baffle (22) of axial limiting on described housing (1) inwall, described once row, on Internal baffle (22), there is the locating piece (221) that can be fixed positioned on described housing (1).
3. primary connection according to claim 2 is arranged rotatable low-voltage current mutual inductor, it is characterized in that: described locating piece (221) is fixed positioned on described housing (1) by removable fasteners.
4. primary connection according to claim 2 is arranged rotatable low-voltage current mutual inductor, it is characterized in that: on described once exclusive baffle plate (21), have with a fixing hole of described housing (1) and relatively rotate the columnar step axle (23) coordinating, the described Internal baffle (22) of once arranging is fixed on the end of this columnar step axle (23).
5. according to the primary connection described in claim 2 or 3 or 4, arrange rotatable low-voltage current mutual inductor, it is characterized in that: in described housing (1) inwall both sides, be equipped with described locating piece (221) the spacing limited step (101) that rotates in a circumferential direction.
6. primary connection according to claim 5 is arranged rotatable low-voltage current mutual inductor, it is characterized in that: shape angle in 90 ° between described two limited steps (101).
7. primary connection according to claim 2 is arranged rotatable low-voltage current mutual inductor, it is characterized in that: on described primary connection row (3), be provided with this primary connection row (3) is limited in to the projection (31) in described housing (1).
8. primary connection according to claim 1 is arranged rotatable low-voltage current mutual inductor, it is characterized in that: described housing (1) is fastened and formed by the first housing (11) and the second housing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410266886.4A CN103996512B (en) | 2014-06-16 | 2014-06-16 | Primary connection arranges rotatable low-voltage current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410266886.4A CN103996512B (en) | 2014-06-16 | 2014-06-16 | Primary connection arranges rotatable low-voltage current mutual inductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103996512A true CN103996512A (en) | 2014-08-20 |
| CN103996512B CN103996512B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410266886.4A Active CN103996512B (en) | 2014-06-16 | 2014-06-16 | Primary connection arranges rotatable low-voltage current mutual inductor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5864276A (en) * | 1996-08-29 | 1999-01-26 | Smiths Industries Public Limited Company | Current transformer assemblies |
| CN201754369U (en) * | 2010-06-22 | 2011-03-02 | 天津百利机电研究院有限公司 | Electronic current transformer body |
| CN201804703U (en) * | 2010-08-24 | 2011-04-20 | 河南电力试验研究院 | Primary end structure of active electronic current transformer |
| JP2013514649A (en) * | 2009-12-17 | 2013-04-25 | フェニックス コンタクト ゲーエムベーハー ウント コムパニー カーゲー | Device for removably attaching a conductor to a transformer housing |
| CN203118752U (en) * | 2012-12-04 | 2013-08-07 | 重庆华虹仪表有限公司 | Low-voltage current transformer |
| CN203950668U (en) * | 2014-06-16 | 2014-11-19 | 重庆华虹仪表有限公司 | Primary connection is arranged rotatable low-voltage current mutual inductor |
-
2014
- 2014-06-16 CN CN201410266886.4A patent/CN103996512B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5864276A (en) * | 1996-08-29 | 1999-01-26 | Smiths Industries Public Limited Company | Current transformer assemblies |
| JP2013514649A (en) * | 2009-12-17 | 2013-04-25 | フェニックス コンタクト ゲーエムベーハー ウント コムパニー カーゲー | Device for removably attaching a conductor to a transformer housing |
| CN201754369U (en) * | 2010-06-22 | 2011-03-02 | 天津百利机电研究院有限公司 | Electronic current transformer body |
| CN201804703U (en) * | 2010-08-24 | 2011-04-20 | 河南电力试验研究院 | Primary end structure of active electronic current transformer |
| CN203118752U (en) * | 2012-12-04 | 2013-08-07 | 重庆华虹仪表有限公司 | Low-voltage current transformer |
| CN203950668U (en) * | 2014-06-16 | 2014-11-19 | 重庆华虹仪表有限公司 | Primary connection is arranged rotatable low-voltage current mutual inductor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103996512B (en) | 2016-03-02 |
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