CN201514905U - Electronic transformer support of low-voltage circuit breaker - Google Patents
Electronic transformer support of low-voltage circuit breaker Download PDFInfo
- Publication number
- CN201514905U CN201514905U CN2009200485740U CN200920048574U CN201514905U CN 201514905 U CN201514905 U CN 201514905U CN 2009200485740 U CN2009200485740 U CN 2009200485740U CN 200920048574 U CN200920048574 U CN 200920048574U CN 201514905 U CN201514905 U CN 201514905U
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- support
- sidewall
- roof
- boss
- fit
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- Expired - Lifetime
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Abstract
The utility model discloses an electronic transformer support of a low-voltage circuit breaker, which comprises a first support, a second support and third supports which are spliced together, wherein the first support and the second support which have U-shaped structures envelope at least two I-shaped third supports; the first support is formed by a side wall, and a top wall and a bottom wall which extend from two ends of the side wall in the same direction for same length; the second support is formed by a side wall, and a top wall and a bottom wall which extend from two ends of the side wall in the same direction; and the third supports are respectively provided with a side wall, and a top wall and a bottom wall which extend from two ends of the side wall to two sides. The electronic transformer support simply and easily meets the requirement on assembly of three poles or four poles of the electronic circuit breaker; and the installation and positioning of the transformer is accurate, and the lead is arranged orderly.
Description
Technical field
The utility model relates to a kind of electronic trip unit that is installed in the low-voltage circuit breaker, relates in particular to the support of the instrument transformer in the fixing electronic trip unit.
Background technology
Low-voltage circuit breaker is commonly used the distribution type, protect electronic type, band residual current protecting type and electronic breaker.Electronic low pressure circuit breaker has overload long delay, short circuit short time delay, short circuit is instantaneous and function such as under voltage protection, and is more comprehensive than common circuit breaker on the function, and distribution line and electric equipment are played more reliable protection; The various functions of electronic type all rely on electronic trip unit to realize, electronic trip unit comprises: instrument transformer, circuit board and executive component, the every utmost point of circuit breaker all has an instrument transformer to detect the current situation that flows through circuit breaker in real time, instrument transformer is little current signal with big electric current conversion and is delivered to the treatment circuit plate, the instruction process signal that circuit board configures according to the user, whether the indication executive component moves.The instrument transformer of present electronic breaker generally directly navigates in the stopper slot that base cooperates with it, thereby is provided with many position limiting structures that cooperate with instrument transformer on base, and its defective is to make base complicated.The all leaded circuit board that is connected to of arbitrary instrument transformer, existing mounting means makes cabling confusing, connects not location of lead, and lead is damaged and runs into easily the major loop of circuit breaker easily when assembling, cause the potential safety hazard of circuit.
Summary of the invention
The purpose of this utility model provides a kind of electronic transducer bracket of low-voltage circuit breaker, can locate instrument transformer by assembly unit, and installation is simple, the location is reliable and volume is small and exquisite.
The technical solution adopted in the utility model is: be assemblied to form by three kinds of supports of first, second, third support, first, second at least two of support envelope that is U type structure is the 3rd support of " worker " type structure; Described first support is made of with roof and the diapire that development length is identical in the same way along the sidewall two ends sidewall, has a limited impression on the sidewall, a side opposite with bearing of trend on the roof has a positive stop lug boss, the roof outside is provided with one and cooperates boss, has cooperation boss corresponding on fit and second support or the 3rd support on the diapire and matches; Roof and diapire that second support has sidewall and extends in the same way along the sidewall two ends, the roof outside have with first support on the fit that cooperates boss to match, have on the diapire cooperate boss respectively with first support 1 on fit and the fit on the 3rd support match, all the other structures of second support all are symmetrical arranged with first support; Roof and diapire that described the 3rd support has sidewall and extends to both sides along the sidewall two ends; On two big faces of sidewall inner chamber, have respectively and first support, the corresponding limited impression of second rack side wall, at any one big of two big faces of sidewall inner chamber and have a detent near the diapire position; Have fit and the cooperation boss that cooperates boss, fit to match with first support, the second support roof respectively at the two ends that roof extends; Have on the diapire with first, second support diapire on fit, cooperation boss and the fit that cooperates boss to match.
The beneficial effects of the utility model are:
1, traditional electronic breaker three utmost points, four utmost points are directly to be installed to instrument transformer on the base or to adopt the three independent utmost points and four utmost point transducer brackets are realized assembling, assemble numerous and diverse, economic benefit is not high, and the assembled structure of the utility model transducer bracket can be realized the matching requirements of electronic breaker three utmost points, four utmost points simply like a cork.
2, the instrument transformer mounting means is that any two stands is from instrument transformer side envelope instrument transformer, the slot to make way that the instrument transformer rivet of stepping down is arranged on the support, the limited impression on the dependence support and the appearance profile of instrument transformer can accurately be located, than the top-down mounting means that is inserted in the base of traditional transducer bracket, it is more accurate to locate.
3, the cabling of traditional electronic breaker instrument transformer is numerous and diverse, chaotic, easily by other parts scratch and damage, causes certain potential safety hazard when assembling, and the lead-in wire cabling of the instrument transformer that the utility model is fixing is orderly, and the location is reliable.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structure chart of the present utility model;
Fig. 2 is the broken away view of Fig. 1;
Fig. 3 is the structure chart of Fig. 1 the 3rd support 3;
Among the figure: 1. first support; 11. sidewall; 12. roof; 13. diapire; 111. limited impression; 112. open slot; 121. positive stop lug boss; 122. groove; 123. cooperation boss; 131. fit; The groove 1111. step down; 1231. open slot;
2. second support; 21. sidewall; 22. roof; 23. diapire; 222. groove; 223. fit; 231. cooperation boss; 2231. boss;
3. the 3rd support; 31. sidewall; 32. roof; 33. diapire; 311. limited impression; 312. detent; 322. groove; 323. cooperation boss; 324. fit; 331. cooperation boss; 332. fit; 333. round tube hole; The groove 3111. step down;
4. instrument transformer; 41. lead-in wire; 5. nut.
Embodiment
As Fig. 1, transducer bracket has first support 1, second support 2 and 3 three kinds of supports of the 3rd support assembled, and described three kinds of supports are made by DMC or other plastic material injection moulding or other forming technology.In the locus of first support 1 and the 3rd support 3, and instrument transformer 4 is all installed in the locus of second support 2 and the 3rd support 3.
As Fig. 2, first support 1 is by sidewall 11, form along sidewall 11 two ends roof 12 that development length is identical in the same way and diapire 13, be U type structure, have a limited impression 111 on sidewall 11, this limited impression 111 is equipped with location instrument transformer 4 mutually with the appearance profile of instrument transformer 4.Four grooves 1111 of stepping down are arranged on the inwall of this limited impression 111, and when riveting the rivet of instrument transformer 4 silicon steel sheets, these four grooves 1111 of stepping down can be abdicated the riveted joint position.At the inner chamber of sidewall 11, the bilateral symmetry that is positioned at limited impression 111 is provided with a measure-alike open slot 112, is used to hold the lead-in wire 41 between 4 two coils of instrument transformer.A side opposite with bearing of trend extended a positive stop lug boss 121 on roof 12, is used for cooperating with corresponding limited impression on the base locating transducer bracket to base.Be provided with one in roof 12 outsides and cooperate boss 123, an open slot 1231 is arranged on this cooperation boss 123, this open slot 1231 is used for the cabling of instrument transformer 4; And fluted 122 on roof 12, this groove 122 is used to hold the lead-in wire 41 of instrument transformer 4, has fit 131 on diapire 13, matches with cooperation boss 231,331 corresponding on second support 2 or the 3rd support 3.
As Fig. 3, the 3rd support 3 is " worker " type structure, the roof 32 and the diapire 33 that have sidewall 31 and extend to both sides along sidewall 31 two ends.Have respectively on two big faces of the 3rd support 3 " worker " type structure side wall 31 inner chambers with first support 1, second support, 2 sidewalls on the groove 3111 of stepping down on corresponding limited impression 311 and this limited impression 311.As Fig. 2, has a detent 312 near on diapire 33 positions any one big of two big faces of sidewall 31 inner chambers of the 3rd support 3.In the approximate centre position of diapire 33 round tube hole 333 is arranged, described round tube hole 333 links to each other with detent 312, this detent 312 envelopes one nut 5, round tube hole 333 mounting screw of stepping down, and both actings in conjunction navigate to support 3 on the base.Fluted 322 on roof 32, this groove 322 is used to hold the lead-in wire 41 of instrument transformer 4.Have fit 324 and the cooperation boss 323 that cooperates boss 123, fit 223 to match with first support 1, second support, 2 roofs respectively at the two ends that roof 32 extends.Have equally on the diapire 33 with first, second support 1,2 diapires on fit 131, cooperation boss 331 and the fit 332 that cooperates boss 231 to match.
As Fig. 1, the general structure of transducer bracket is: the width and the thickness of first, second, third support 1,2,3 are roughly the same, first, second support 1,2 structures are symmetry roughly, the length of the 3rd support 3 and first, second support 1,2 are different, first, second support 1,2 at least two of envelopes that are U type structure are " worker " type the 3rd support 3, make transducer bracket be " mouth " type, can realize the needs of electronic breaker three utmost points and four utmost points.The lead-in wire 41 of first, second, third support 1,2,3 grooves, 122,222, the 322 common open slots 7 that form and trough 6 location and envelope instrument transformer; And the open slot of the symmetrical distribution on first, second, third support, 1,2,3 sidewalls is used to hold the connecting line between 4 liang of coils of instrument transformer and the lead-in wire 41 of instrument transformer 4, with the lead-in wire 41 of protection instrument transformer 4.
Claims (2)
1. electronic transducer bracket of low-voltage circuit breaker, it is characterized in that: be assemblied to form by three kinds of supports of first, second, third support (1,2,3), at least two of the envelopes of first, second support (1,2) that are U type structure are the 3rd support (3) of " worker " type structure; Described first support (1) by sidewall (11) with constitute along sidewall (11) the two ends roof (12) that development length is identical in the same way and diapire (13), has a limited impression (111) on the sidewall (11), roof (12) is gone up a side opposite with bearing of trend and is had a positive stop lug boss (121), roof (12) outside is provided with one and cooperates boss (123), has fit (131) on the diapire (13) and matches with second support (2) or the last corresponding cooperation boss (231,331) of the 3rd support (3); Roof (22) and diapire (23) that described second support (2) has sidewall (21) and extends in the same way along sidewall (21) two ends, roof (22) outside have with first support (1) on the fit (223) that cooperates boss (123) to match, have on the diapire (23) cooperation boss (231) respectively with first support (1) on fit (131) and the fit (332) on the 3rd support (3) match, all the other structures of second support (2) all are symmetrical arranged with first support (1); Roof (32) and diapire (33) that described the 3rd support (3) has sidewall (31) and extends to both sides along sidewall (31) two ends; On two big faces of sidewall (31) inner chamber, have respectively and first support (1), the corresponding limited impression of second support (2) sidewall (311), at any one big of two big faces of sidewall (31) inner chamber and have a detent (312) near diapire (33) position; Have fit (324) and the cooperation boss (323) that cooperates boss (123), fit (223) to match with first support (1), second support (2) roof respectively at the two ends that roof (32) extends; Have on the diapire (33) with first, second support (1,2) diapire on fit (131), cooperation boss (331) and the fit (332) that cooperates boss (231) to match.
2. a kind of electronic transducer bracket of low-voltage circuit breaker according to claim 1, it is characterized in that: sidewall (11) inner chamber of first support (1) and the bilateral symmetry of limited impression (111) are provided with identical open slot (112), have four grooves of stepping down (1111) on the inwall of limited impression (111), cooperate on the boss (123) to have an open slot (1231), have groove (122) on the roof (12); Have on the fit (223) of second support (2) with first support (1) on the boss (2231) that matches of open slot (1231) gap; Have groove (322) on the roof (32) of the 3rd support (3), have a round tube hole (333) that links to each other with detent (312) on the diapire (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200485740U CN201514905U (en) | 2009-10-23 | 2009-10-23 | Electronic transformer support of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200485740U CN201514905U (en) | 2009-10-23 | 2009-10-23 | Electronic transformer support of low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514905U true CN201514905U (en) | 2010-06-23 |
Family
ID=42486316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200485740U Expired - Lifetime CN201514905U (en) | 2009-10-23 | 2009-10-23 | Electronic transformer support of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163520A (en) * | 2011-03-03 | 2011-08-24 | 厦门宏美电子有限公司 | Integral electronic module of intelligent molded case circuit breaker |
-
2009
- 2009-10-23 CN CN2009200485740U patent/CN201514905U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163520A (en) * | 2011-03-03 | 2011-08-24 | 厦门宏美电子有限公司 | Integral electronic module of intelligent molded case circuit breaker |
| CN102163520B (en) * | 2011-03-03 | 2013-05-22 | 厦门宏美电子有限公司 | Integral electronic module of intelligent molded case circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100623 Effective date of abandoning: 20091023 |