CN108054066B - Cold bending rotating shaft structure of electromagnetic release of circuit breaker - Google Patents
Cold bending rotating shaft structure of electromagnetic release of circuit breaker Download PDFInfo
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- CN108054066B CN108054066B CN201711359937.8A CN201711359937A CN108054066B CN 108054066 B CN108054066 B CN 108054066B CN 201711359937 A CN201711359937 A CN 201711359937A CN 108054066 B CN108054066 B CN 108054066B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
- H01H71/405—Combined electrothermal and electromagnetic mechanisms in which a bimetal forms the inductor for the electromagnetic mechanism
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Abstract
The utility model provides a cold bending rotating shaft structure of circuit breaker electromagnetic release, the circuit breaker includes adjusting screw, contact, electromagnetic release's yoke, coil and bimetallic strip, coil and yoke welding form the coil welded part, the one side of coil welded part is the contact side and is provided with the contact, and the opposite side of coil welded part is the adjusting side, is provided with bimetallic strip, and adjustable yoke's adjusting screw, bimetallic strip's one end and yoke welding form bimetallic welding part, bimetallic strip's the other end is the bendable end and sets up with the hasp relatively; a rigidity weakening gap a is formed between the coil welding part and the double-gold welding part, a gap x is formed between the side face of the double-gold welding part and the bending part of the coil welding part, which is close to one side of the double-gold welding part, and the rigidity weakening gap a enables all or part of a rotating shaft of the magnetic yoke, which is regulated by the regulating screw to rotate, to be positioned at the regulating side. The invention provides a cold bending rotating shaft structure of an electromagnetic release of a circuit breaker, which has the advantages of simple structure and high release performance reliability.
Description
Technical Field
The invention relates to the technical field of piezoelectric devices, in particular to a cold bending rotating shaft structure of an electromagnetic release of a circuit breaker.
Background
As shown in fig. 1, the conventional circuit breaker structure comprises an adjusting screw 4, a contact, a magnetic yoke 1 of an electromagnetic release, a coil 2 and a bimetallic strip 3, wherein the distance between the bimetallic strip of the electromagnetic release and a lock catch is controlled by the adjusting screw so as to adjust the time delay action characteristic of a product. The adjustment principle is as follows: the adjusting screw makes the magnetic yoke of the electromagnetic release deform to drive the double-gold to deflect, so as to achieve the purpose of adjusting the distance between the double-gold and the lock catch, thereby controlling the action time of the product. The coil 2 and the magnetic yoke 1 are welded to form a coil welding part 20, one end of the bimetallic strip 3 and the magnetic yoke 1 are welded to form a bimetallic welding part 30, and a welding boss of the coil welding part 20 is basically clung to the bimetallic welding part 30, so that an adjusting screw is used for adjusting the magnetic yoke 1 by taking the vicinity of a contact as an axis, and the coil can be pushed to move forward in the adjusting process, so that the relative position between the coil and an iron core is changed, and a magnetic tripping curve is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a cold bending rotating shaft structure of an electromagnetic release of a circuit breaker, which has the advantages of simple structure and high release performance reliability.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a cold bending rotating shaft structure of circuit breaker electromagnetic release, the circuit breaker includes adjusting screw 4, contact, electromagnetic release's yoke 1, coil 2 and bimetallic strip 3, coil 2 and yoke 1 welding form coil welded part 20, coil welded part 20's one side is provided with the contact for the contact side, and coil welded part 20's opposite side is the adjusting side, is provided with bimetallic strip 3, and adjustable yoke 1's adjusting screw 4, bimetallic strip 3's one end welds into bimetallic strip welded part 30 with yoke 1, bimetallic strip 3's the other end is bendable end 31 and hasp 5 relative setting; a rigidity weakening gap a is formed between the coil welding part 20 and the double-metal welding part 30, a gap x exists between the side surface of the double-metal welding part 30 and the bending part of the coil welding part 20 at the side close to the double-metal welding part 30, and the rigidity weakening gap a enables the rotating shaft 110 of the magnetic yoke 1, which is regulated by the regulating screw 4 to rotate, to be located at the regulating side in whole or in part.
Preferably, the rotating shaft 110 is located between the double-metal welding part 30 and the coil welding part 20, and the minimum value of the gap x between the side surface of the double-metal welding part 30 and the rotating shaft 110, that is, the bending part of the coil welding part 20 near the double-metal welding part 30 is 0.77.
Preferably, the horizontal distance between the side surface of the coil welding part 20 and the rotating shaft 110 is 0.5mm, and the vertical distance between the top surface of the double-gold welding part 30 and the rotating shaft 110 is 1.5mm; a is more than 1.27mm and less than 2mm.
Preferably, the magnetic yoke 1 is an integrally formed structure made of carbon steel and copper composite materials.
Preferably, the yoke 1 is provided with a welding boss 11 for welding the coil welding part 20.
Preferably, the welding boss 11 is punched, so that the yoke 1 is formed with a welding boss 11 protruding from the top surface and a punching groove 13 corresponding to the welding boss 11 and recessed from the bottom surface.
Preferably, the bimetal 3 is L-shaped, the part of the yoke 1 located at the adjusting side is an adjustable part 12, which comprises a flat plate 121 and an inclined plate 122 that are connected, the double-metal welding part 30 of the bimetal 3 is welded on the top surface of the flat plate 121 in a stacked manner, the inclined plate 122 of the adjustable part 12 is tilted upward and located at one side of the bent end 31 of the bimetal 3, the lock catch 5 is located at the other side of the bent end 31, and the adjusting screw 4 can be abutted against the bottom surface of the inclined plate 122.
Preferably, the electromagnetic release further comprises an iron core component and a coil framework 6 which are arranged on the magnetic yoke 1, and the coil 2 is sleeved on the outer wall of the coil framework 6; the iron core component is arranged in a cylinder cavity of the coil skeleton 6 and comprises a movable iron core 7, an ejector rod, a static iron core 8 and a counter-force spring arranged between the ejector rod and the static iron core 8, wherein the ejector rod can drive the lock catch 5 to swing when being ejected.
Preferably, one end of the movable iron core 7 is arranged in the coil framework 6 and is connected with one end of the ejector rod, the other end of the movable iron core 7 extends out of the coil framework 6, the other end of the ejector rod passes through the static iron core 8 and can pop out of the coil framework 6, one end of the static iron core 8 extends out of the coil framework 6 and is fixed on the magnetic yoke 1, and the counter-force spring is sleeved on the ejector rod, and two ends of the counter-force spring are abutted between the static iron core 8 and the ejector rod.
Preferably, the part of the magnetic yoke 1 located at the contact side is a mounting part 10, which comprises a bottom plate 100 and a U-shaped frame arranged on the bottom plate 100 and used for mounting the coil framework 6 and the iron core assembly, and a gap 101 is arranged on the bottom plate 100 of the magnetic yoke 1 and aligned with the inner side edge of the adjustable part 12.
According to the cold bending rotating shaft structure of the electromagnetic release of the circuit breaker, the rigidity weakening gap which can enable the rotating shaft of the magnetic yoke to be located on the adjusting side is arranged between the double-metal welding point and the welding point of the coil, and the rigidity weakening gap enables a gap x to exist between the side face of the double-metal welding part 30 and the bending part of the coil welding part 20, which is close to one side of the double-metal welding part 30, so that the coil does not move along with the magnetic yoke in the adjusting process, the structure is simple, the coil is prevented from moving to influence the magnetic release curve of the circuit breaker, the reliability of the tripping performance of the circuit breaker is improved, the rotating space of the cold bending rotation of the adjustable part of the magnetic yoke is controlled, the delay action time of the circuit breaker is adjusted, and the reliability of the product delay performance is improved.
Drawings
Fig. 1 is a schematic structural view of a prior art circuit breaker;
FIG. 2 is a schematic diagram of the structure of an electromagnetic trip of the present invention;
FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 in accordance with the present invention;
fig. 4 is a schematic diagram showing the rotation of the yoke and bi-metallic strip during adjustment in accordance with the present invention;
fig. 5 is a schematic diagram of a partial structure of an electromagnetic release according to the present invention;
FIG. 6 is a dimensional and angular relationship of the partial structure of the electromagnetic trip of the present invention;
fig. 7 is a schematic structural view of the yoke of the present invention.
Detailed Description
The following is a further description of embodiments of the cold-roll rotary shaft structure of an electromagnetic trip for a circuit breaker according to the present invention, in conjunction with the examples shown in fig. 2 to 7. The cold-bending shaft structure of the electromagnetic release of the circuit breaker of the present invention is not limited to the description of the following embodiments.
As shown in fig. 2-4, the cold bending rotating shaft structure of the electromagnetic release of the circuit breaker comprises an adjusting screw 4, a contact, a magnetic yoke 1 of the electromagnetic release, a coil 2 and a bimetallic strip 3, wherein the coil 2 and the magnetic yoke 1 are welded to form a coil welding part 20, one side of the coil welding part 20 is provided with the contact, the other side of the coil welding part 20 is provided with the adjusting side, the bimetallic strip 3 and the adjusting screw 4 of the adjustable magnetic yoke 1 are arranged, one end of the bimetallic strip 3 and the magnetic yoke 1 are welded to form a bimetallic welding part 30, and the other end of the bimetallic strip 3 is provided with a bendable end 31 opposite to the lock catch 5; specifically, a rigidity-weakening gap a is formed between the coil welded portion 20 and the double-gold welded portion 30, and a gap x exists between the side surface of the double-gold welded portion 30 and the bent portion of the coil welded portion 20 on the side close to the double-gold welded portion 30, the rigidity-weakening gap a causing the rotation shaft 110, which is rotated by the yoke 1 adjusted by the adjusting screw 4, to be located wholly or partially on the adjusting side. It should be noted that the rotation axis 110 is an imaginary axis, and is not a real axis that actually exists.
The circuit breaker controls the distance between the bimetallic strip 3 and the lock catch 5 of the electromagnetic release through the adjusting screw 4 so as to adjust the time delay action characteristic of the product. During adjustment, the adjusting screw 4 deforms the adjustable part 12 of the magnetic yoke 1 to drive the bimetallic strip 3 to deflect so as to adjust the distance between the bendable end 31 of the bimetallic strip 3 and the lock catch 5, thereby controlling the action time of a product. According to the cold bending rotating shaft structure of the electromagnetic release of the circuit breaker, the rigidity weakening gap which can enable the rotating shaft of the magnetic yoke to be located on the adjusting side in whole or in part is arranged between the welding point of the double-metal and the welding point of the coil, so that the coil does not move along with the magnetic yoke in the adjusting process, the structure is simple, the coil is prevented from moving to influence the magnetic release curve of the circuit breaker, the reliability of the release performance of the circuit breaker is improved, the rotating space of cold bending rotation of the adjustable part of the magnetic yoke is controlled, the time delay action time of the circuit breaker is adjusted, and the reliability of the product time delay performance is improved.
As shown in FIGS. 5-6, preferably 1mm < a < 2mm. Further, the rotating shaft 110 is located between the double-metal welding portion 30 and the coil welding portion 20, the rotating shaft 110 is usually located at a bent portion of the coil welding portion 20, which is bent to form a welding boss 11, and is close to the double-metal welding portion 30, a gap is formed between a side surface of the double-metal welding portion 30 and the rotating shaft 110, a horizontal distance between the side surface of the double-metal welding portion 30 and the rotating shaft 110, that is, a bent portion of the coil welding portion 20, which is close to the double-metal welding portion 30, is x, and a minimum value of x is 0.77. Preferably, the coil welding portion 20 is bent to form a welding boss, the horizontal distance between the side surface of the coil welding portion 20 and the rotating shaft 110 is 0.5mm, which is an approximate value of actual measurement, and the vertical distance between the top surface of the double-metal welding portion 30 and the rotating shaft 110 is 1.5mm, which is an actual value, specifically, 1/2 of the thickness of the magnetic yoke 1+the thickness of the bimetal 3, which is affected by the thickness and the material of the magnetic yoke; a is more than 1.27mm and less than 2mm.
The maximum value of a is selected: since the resistivity of the yoke 1 is high. According to the resistance r=ρl/S, the power p=i 2*R, the larger a is, the larger the resistance is, which in turn causes an increase in the heating value of the electromagnetic trip. Because the product standard has temperature rise requirement, the current specification of 125A (the specification has highest temperature rise) is set to be 2mm, the temperature rise of the 4-pole connecting terminal is about 55K on average (the standard requirement does not exceed 60K), and the upper limit of the standard temperature rise is already close to the upper limit of the standard temperature rise after a certain margin is reserved, so the upper limit of the a is 2mm, and the value of the a can be selected according to the current specification and the actual temperature rise condition of the product.
The minimum value of a is selected:
as shown in fig. 5 to 6, there is provided: the horizontal distance between the side surface of the double-gold welding part 30 of the bimetal 3 and the rotating shaft 110 is x, the distance between the top edge of the coil welding part 20 and the rotating shaft 110 is r, the rotating angle of the double-gold welding part 30 of the bimetal 3 is θ, and the included angles formed by the bimetal 3 and the double-gold welding part 30 during bending and resetting are α and β respectively.
Known r 2 ＝x 2 +1.5 2 ，θ+α+β＝π；
Based on the formula: sin (α+β) =sin αcos β+cos αsin β;
obtaining:
the maximum required rotation angle of the bimetal welding part 30 due to the bimetal 3 is about 45 deg
Substitution intoObtaining:
substitution of r 2 ＝x 2 +1.5 2 Obtaining:
0.51x 4 +0.845x 2 -0.68=0 gives: x=0.77 then the minimum value of a is set to x+0.5=0.77+0.5=1.27.
Through controlling the space between the welding point of the double-metal and the welding point of the coil within a reasonable range, the structure is simple, and the rotating space of the cold bending rotation of the adjustable part of the magnetic yoke is controlled, so that the time delay action time of the circuit breaker can be adjusted to the greatest extent, the reliability of the time delay performance of the product is improved, the phenomenon that the temperature rise of the circuit breaker exceeds the standard due to overlarge distance between the welding points is avoided, and the quality and the performance of the product are ensured.
In addition, the magnetic yoke 1 is an integrally formed structure made of carbon steel and copper composite materials. The magnetic yoke is compounded by carbon steel and copper, so that the magnetic yoke has good conductivity of copper, and good formability and cold bending performance of the carbon steel; integrated into one piece, simple structure is firm, is convenient for manufacturing. The yoke 1 is provided with a welding boss 11 for welding the coil welding portion 20. The welding boss 11 is punched, so that the welding boss 11 protruding from the top surface and the punching groove 13 corresponding to the welding boss 11 and recessed from the bottom surface are formed on the magnetic yoke 1. Simple structure, and is convenient for production and manufacture.
The bimetal 3 is L-shaped, the adjustable part 12 of the yoke 1 on the adjusting side comprises a flat plate 121 and an inclined plate 122 which are connected, the double-metal welding part 30 of the bimetal 3 is welded on the top surface of the flat plate 121 in a stacked manner, the inclined plate 122 of the adjustable part 12 is tilted upwards and positioned on one side of the bent end 31 of the bimetal 3, the lock catch 5 is positioned on the other side of the bent end 31, and the adjusting screw 4 can be abutted against the bottom surface of the inclined plate 122. This structural design, it is convenient to adjust, labour saving and time saving.
As shown in fig. 2, the electromagnetic release of the invention further comprises an iron core component and a coil framework 6 which are arranged on the magnetic yoke 1, wherein the coil 2 is sleeved on the outer wall of the coil framework 6; the iron core component is arranged in a cylinder cavity of the coil skeleton 6 and comprises a movable iron core 7, an ejector rod, a static iron core 8 and a counter-force spring arranged between the ejector rod and the static iron core 8, wherein the ejector rod can drive the lock catch 5 to swing when being ejected. One end of the movable iron core 7 is arranged in the coil framework 6 and is connected with one end of the ejector rod, the other end of the movable iron core 7 extends out of the coil framework 6, the other end of the ejector rod penetrates through the static iron core 8 and can pop out of the coil framework 6, one end of the static iron core 8 extends out of the coil framework 6 and is fixed on the magnetic yoke 1, and the counter-force spring is sleeved on the ejector rod, and two ends of the counter-force spring are abutted between the static iron core 8 and the ejector rod.
As shown in fig. 7, the part of the yoke 1 located at the contact side is a mounting portion 10, which includes a bottom plate 100 and a U-shaped frame disposed on the bottom plate 100 for mounting the coil bobbin 6 and the iron core assembly, and a slit 101 is provided on the bottom plate 100 of the yoke 1 aligned with the inner edge of the adjustable portion 12. The deformation adjustment of the adjustable part is convenient. The back vertical plate 102 of the U-shaped frame is vertically connected to the bottom plate 100, the vertical plates 103 on two sides of the U-shaped frame are suspended above the bottom plate 100, the side vertical plates 103 are respectively provided with a bayonet 104 relatively, one end of the static iron core 8 is clamped in the bayonet 104 of the side vertical plate 103 on the left side, the other end of the static iron core 8 is arranged in the coil framework 6, and one end of the coil framework 6 is clamped in the bayonet 104 of the side vertical plate 103 on the right side. The installation structure is simple, the installation stability of the coil framework and the iron core component is guaranteed, and the installation efficiency is improved. In the prior art, the adjusting screw is adjusted by taking the vicinity of the side vertical plate 103 of the bottom plate 100, which is close to the contact side, as an axis, and the coil is pushed to move forward in the adjusting process by taking the axis as the axis, so that the relative position between the coil and the iron core component is changed, and the magnetic tripping curve is influenced.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a cold bending rotating shaft structure of circuit breaker electromagnetic release, the circuit breaker includes adjusting screw (4), contact, yoke (1) of electromagnetic release, coil (2) and bimetallic strip (3), coil (2) and yoke (1) welding formation coil welded part (20), one side of coil welded part (20) is provided with the contact for the contact side, and the opposite side of coil welded part (20) is the regulation side, is provided with bimetallic strip (3) and adjusting screw (4) of adjustable yoke (1), bimetallic strip (3) one end and yoke (1) welding formation bimetallic weld part (30), and the other end of bimetallic strip (3) is bendable end (31) and hasp (5) set up relatively; the method is characterized in that: a rigidity weakening gap a is formed between the coil welding part (20) and the double-gold welding part (30), a gap x exists between the side surface of the double-gold welding part (30) and the bending part of the coil welding part (20) at one side close to the double-gold welding part (30), and the rigidity weakening gap a enables the magnetic yoke (1) to be adjusted by the adjusting screw (4) so that the rotating shaft (110) rotating is located at the adjusting side in whole or in part.
2. The cold-roll axis structure of an electromagnetic trip for a circuit breaker of claim 1, wherein: the rotating shaft (110) is positioned between the double-gold welding part (30) and the coil welding part (20), and the minimum value of a gap x between the side surface of the double-gold welding part (30) and the rotating shaft (110), namely the bending part of the coil welding part (20) on the side close to the double-gold welding part (30), is 0.77.
3. The cold-roll axis structure of an electromagnetic trip for a circuit breaker of claim 1, wherein: the horizontal distance between the side surface of the coil welding part (20) and the rotating shaft (110) is 0.5mm, and the vertical distance between the top surface of the double-gold welding part (30) and the rotating shaft (110) is 1.5mm; a is more than 1.27mm and less than 2mm.
4. The cold-roll axis structure of an electromagnetic trip for a circuit breaker of claim 1, wherein: the magnetic yoke (1) is an integrally formed structure made of carbon steel and copper composite materials.
5. The cold-roll axis structure of an electromagnetic trip for a circuit breaker of claim 1, wherein: a welding boss (11) for welding a coil welding part (20) is arranged on the magnetic yoke (1).
6. The cold-roll axis structure of an electromagnetic trip for a circuit breaker of claim 5, wherein: the welding boss (11) is stamped, so that the magnetic yoke (1) is provided with the welding boss (11) protruding from the top surface and the stamping groove (13) corresponding to the welding boss (11) and recessed from the bottom surface.
7. The cold-roll axis structure of an electromagnetic trip for a circuit breaker of claim 1, wherein: the bimetallic strip (3) is L-shaped, the part of the magnet yoke (1) located at the adjusting side is an adjustable part (12), the adjustable part comprises a flat plate (121) and an inclined plate (122) which are connected, the double-metal welding part (30) of the bimetallic strip (3) is welded on the top surface of the flat plate (121) in a stacked mode, the inclined plate (122) of the adjustable part (12) is tilted upwards and located on one side of a bendable end (31) of the bimetallic strip (3), the lock catch (5) is located on the other side of the bendable end (31), and the adjusting screw (4) can be abutted against the bottom surface of the inclined plate (122).
8. The cold-roll axis structure of an electromagnetic trip for a circuit breaker of claim 1, wherein: the electromagnetic release further comprises an iron core component and a coil framework (6), wherein the iron core component and the coil framework (6) are arranged on the magnetic yoke (1), and the coil (2) is sleeved on the outer wall of the coil framework (6); the iron core assembly is arranged in a cylinder cavity of the coil framework (6) and comprises a movable iron core (7), an ejector rod, a static iron core (8) and a counter-force spring arranged between the ejector rod and the static iron core (8), wherein the ejector rod can drive the lock catch (5) to swing when being ejected.
9. The cold-roll axis structure of an electromagnetic trip for a circuit breaker of claim 8, wherein: one end of the movable iron core (7) is arranged in the coil framework (6) and connected with one end of the ejector rod, the other end of the movable iron core (7) extends out of the coil framework (6), the other end of the ejector rod penetrates through the static iron core (8) and can pop out of the coil framework (6), one end of the static iron core (8) extends out of the coil framework (6) and is fixed on the magnetic yoke (1), and the counter-force spring is sleeved on the ejector rod and two ends of the counter-force spring are abutted between the static iron core (8) and the ejector rod.
10. The cold-roll axis structure of an electromagnetic trip for a circuit breaker of claim 8, wherein: the part of the magnetic yoke (1) positioned at the contact side is a mounting part (10) and comprises a bottom plate (100) and a U-shaped frame arranged on the bottom plate (100) and used for mounting a coil framework (6) and an iron core component, and a gap (101) is formed in the inner side edge of the bottom plate (100) of the magnetic yoke (1) aligned with the adjustable part (12).
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| CN201711359937.8A CN108054066B (en) | 2017-12-15 | 2017-12-15 | Cold bending rotating shaft structure of electromagnetic release of circuit breaker |
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| CN201711359937.8A CN108054066B (en) | 2017-12-15 | 2017-12-15 | Cold bending rotating shaft structure of electromagnetic release of circuit breaker |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2676592A1 (en) * | 1991-05-13 | 1992-11-20 | Telemecanique | THERMAL AND MAGNETIC PROTECTION CURRENT SWITCHING APPARATUS. |
| JP2000200535A (en) * | 1998-12-31 | 2000-07-18 | Tempearl Ind Co Ltd | Circuit breaker |
| DE10324390A1 (en) * | 2003-05-30 | 2004-12-23 | Abb Patent Gmbh | Electrical release device for an electric switch, fits in a casing with moving and fixed contacts, a switch latch, an electromagnetic tripping device with an armature, a core, a coil and a yoke |
| CN2870150Y (en) * | 2005-09-27 | 2007-02-14 | 宁波奇乐电器实业总公司 | Over-current releasing device of low-voltage circuit breaker |
| CN101930883A (en) * | 2010-09-16 | 2010-12-29 | 方华朋 | Small-sized breaker |
| FR2958447A1 (en) * | 2010-04-02 | 2011-10-07 | Schneider Electric Ind Sas | Electromagnetic tripping device for double-break low voltage multi-polar type breaker, has airgap between heads and adjustable core maximum to rest position, and adjustment units adjusting airgap value along displacement axis of core |
| WO2014083191A1 (en) * | 2012-11-29 | 2014-06-05 | Eaton Industries (Austria) Gmbh | Circuit breaker having a passively heated bimetal element |
| WO2016079206A1 (en) * | 2014-11-20 | 2016-05-26 | Eaton Industries (Austria) Gmbh | Circuit breaker comprising a passively heated bimetal element acting on a striking armature of an electromagnetic tripping device |
| CN106898528A (en) * | 2015-12-21 | 2017-06-27 | 浙江正泰电器股份有限公司 | The Pyromagnetic release of breaker |
| CN206422024U (en) * | 2017-01-11 | 2017-08-18 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
| CN207731888U (en) * | 2017-12-15 | 2018-08-14 | 浙江正泰电器股份有限公司 | The clod wash pivot structure of circuit breaker electric magnetic release |
-
2017
- 2017-12-15 CN CN201711359937.8A patent/CN108054066B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2676592A1 (en) * | 1991-05-13 | 1992-11-20 | Telemecanique | THERMAL AND MAGNETIC PROTECTION CURRENT SWITCHING APPARATUS. |
| JP2000200535A (en) * | 1998-12-31 | 2000-07-18 | Tempearl Ind Co Ltd | Circuit breaker |
| DE10324390A1 (en) * | 2003-05-30 | 2004-12-23 | Abb Patent Gmbh | Electrical release device for an electric switch, fits in a casing with moving and fixed contacts, a switch latch, an electromagnetic tripping device with an armature, a core, a coil and a yoke |
| CN2870150Y (en) * | 2005-09-27 | 2007-02-14 | 宁波奇乐电器实业总公司 | Over-current releasing device of low-voltage circuit breaker |
| FR2958447A1 (en) * | 2010-04-02 | 2011-10-07 | Schneider Electric Ind Sas | Electromagnetic tripping device for double-break low voltage multi-polar type breaker, has airgap between heads and adjustable core maximum to rest position, and adjustment units adjusting airgap value along displacement axis of core |
| CN101930883A (en) * | 2010-09-16 | 2010-12-29 | 方华朋 | Small-sized breaker |
| WO2014083191A1 (en) * | 2012-11-29 | 2014-06-05 | Eaton Industries (Austria) Gmbh | Circuit breaker having a passively heated bimetal element |
| WO2016079206A1 (en) * | 2014-11-20 | 2016-05-26 | Eaton Industries (Austria) Gmbh | Circuit breaker comprising a passively heated bimetal element acting on a striking armature of an electromagnetic tripping device |
| CN106898528A (en) * | 2015-12-21 | 2017-06-27 | 浙江正泰电器股份有限公司 | The Pyromagnetic release of breaker |
| CN206422024U (en) * | 2017-01-11 | 2017-08-18 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
| CN207731888U (en) * | 2017-12-15 | 2018-08-14 | 浙江正泰电器股份有限公司 | The clod wash pivot structure of circuit breaker electric magnetic release |
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| CN108054066A (en) | 2018-05-18 |
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