Title of Invention	A MULTI-POLE OR SINGLE-POLE SWITCH FOR LOW VOLTAGE SYSTEMS
Abstract	The present invention relates to an automatic switch (1) to be used preferably in low-voltage systems. The automatic switch (1) comprises an outer casing (2) containing for each pole at least one fixed contact (10) and at least one mobile contact (20) housed in a corresponding seat (25) provided on a mobile element (50) operatively connected to a control mechanism (60) to enable its movement. The automatic switch (1) according to the invention comprises means for the support of the mobile element (50), which are constrained to a structural part (70) of the control mechanism (60). Said supporting means support the mobile element (50) through hinge connection means to provide a center of rotation for the mobile element itself.

Title of Invention

A MULTI-POLE OR SINGLE-POLE SWITCH FOR LOW VOLTAGE SYSTEMS

Abstract

The present invention relates to an automatic switch (1) to be used preferably in low-voltage systems. The automatic switch (1) comprises an outer casing (2) containing for each pole at least one fixed contact (10) and at least one mobile contact (20) housed in a corresponding seat (25) provided on a mobile element (50) operatively connected to a control mechanism (60) to enable its movement. The automatic switch (1) according to the invention comprises means for the support of the mobile element (50), which are constrained to a structural part (70) of the control mechanism (60). Said supporting means support the mobile element (50) through hinge connection means to provide a center of rotation for the mobile element itself.

Full Text	CIRCUITBREAKER WITH SUSPENDED MOBILE CONTACT ASSEMBLY DESCRIPTION The present invention relates to a switch comprising a suspended mobile element to be used preferably in low-voltage systems. switches designed for providing high performance in terms of rated currents and of breaking capacity in order to create more compact assembly structures that can be readily assembled and made 19 of a limited number of components. considerably the operations of assembly and maintenance of the switch. Further characteristics and advantages of the invention will emerge more clearly from the description of preferred but non-exclusive embodiments of the switch according to the outer casing 2, for instance through the use of tie-rods 62, as specified in greater detail hereinafter. With reference to Figure 1, the switch 1 comprises an energy-accumulation conrtrol mechanism 60, normally used in applications that envisage high values of rated current and/or switches of the so-called "open" or "air circuit breaker" (ACB) type. Figure 9 provides a clearer view of the inner side of the bottom 3 of the containing casing 2, on which the fixed contacts 10 are pre-ananged, each electrically connected to an therein will have a common axis of rotation 100 with respect to the mobile element itself. The latter is physically constituted by transverse rotation pins arranged on appropriate housings 23 obtained in each of the seats 25. which ar the mechanical means necessary for movement of the mobile element 50. Set between these sides 71 and 72 is a transverse wall 74, which has the purpose of increasing the mechanical rigidity of the control 60. Located at the side of this transverse wall 74 is a loading lever 35, which instead has the function of actuating a device 36 for loading the springs of the calibrated portion 112 enables rotation of the mobile element itself with respect to the supporting arms 80 and 81 supporting it From the standpoint of assembly, the solution described is extremely advantageous in so far as each rotation pin has contained axial dimensions that facilitate its positioning within the mobile element 50 in a position through the aforesaid electrical-junction means 21. Next, the mobile element 50 is placed within the outer casing 2 generated by the coupling between the bottom 3 and the lid 4, and is A control mechanism of a direct type 61 can hence be easily replaced with an energy-accumulation control mechanism 60 by simply pulling out the driving pin 131, separating the CLAIMS 1, A multi-pole or single-pole switch (1) for low-voltage systems comprising: - an outer casing (2) containing for each pole at least one fixed contact (10) and at least respective electrodes (22) of said switch (1). 7. The switch (1) according to one or more ofclaims 1 to 6, characterized in that said mobile contacts (20) are mounted on a plurality of transverse rotation pins, aligned and The switch (1) according to one or more of Claims 11 to 17, characterized in that said hinge connection means comprise, for each supporting arm (80, 81), a rotation pin (110, 111), which is inserted in a first hole (84) made on said operative end (85) and in a said control mechanism (60), each of said supporting arms (80, 81) being operatively connected to said mobile element (SO) through a rotation pin (110, 111) and being constrained to said structural part (70) of said control mechanism (60) through removable fixing means (73), each of said operative ends (85) of said supporting arms (80, 81) being inserted in one of said radial recesses (51, 52) of said mobile element (50).

Full Text

CIRCUITBREAKER WITH SUSPENDED MOBILE CONTACT ASSEMBLY
DESCRIPTION The present invention relates to a switch comprising a suspended mobile element to be used preferably in low-voltage systems.

switches designed for providing high performance in terms of rated currents and of breaking capacity in order to create more compact assembly structures that can be readily assembled and made 19 of a limited number of components.

considerably the operations of assembly and maintenance of the switch.
Further characteristics and advantages of the invention will emerge more clearly from the description of preferred but non-exclusive embodiments of the switch according to the

outer casing 2, for instance through the use of tie-rods 62, as specified in greater detail hereinafter.
With reference to Figure 1, the switch 1 comprises an energy-accumulation conrtrol mechanism 60, normally used in applications that envisage high values of rated current and/or

switches of the so-called "open" or "air circuit breaker" (ACB) type.
Figure 9 provides a clearer view of the inner side of the bottom 3 of the containing casing 2, on which the fixed contacts 10 are pre-ananged, each electrically connected to an

therein will have a common axis of rotation 100 with respect to the mobile element itself. The latter is physically constituted by transverse rotation pins arranged on appropriate housings 23 obtained in each of the seats 25.

which ar the mechanical means necessary for movement of the mobile element 50. Set between these sides 71 and 72 is a transverse wall 74, which has the purpose of increasing the mechanical rigidity of the control 60. Located at the side of this transverse wall 74 is a loading lever 35, which instead has the function of actuating a device 36 for loading the springs of the

calibrated portion 112 enables rotation of the mobile element itself with respect to the supporting arms 80 and 81 supporting it From the standpoint of assembly, the solution described is extremely advantageous in so far as each rotation pin has contained axial dimensions that facilitate its positioning within the mobile element 50 in a position

through the aforesaid electrical-junction means 21. Next, the mobile element 50 is placed within the outer casing 2 generated by the coupling between the bottom 3 and the lid 4, and is

A control mechanism of a direct type 61 can hence be easily replaced with an energy-accumulation control mechanism 60 by simply pulling out the driving pin 131, separating the

CLAIMS 1, A multi-pole or single-pole switch (1) for low-voltage systems comprising:
- an outer casing (2) containing for each pole at least one fixed contact (10) and at least

respective electrodes (22) of said switch (1). 7. The switch (1) according to one or more ofclaims 1 to 6, characterized in that said mobile contacts (20) are mounted on a plurality of transverse rotation pins, aligned and

The switch (1) according to one or more of Claims 11 to 17, characterized in that said hinge connection means comprise, for each supporting arm (80, 81), a rotation pin (110, 111), which is inserted in a first hole (84) made on said operative end (85) and in a

said control mechanism (60), each of said supporting arms (80, 81) being operatively connected to said mobile element (SO) through a rotation pin (110, 111) and being constrained to said structural part (70) of said control mechanism (60) through removable fixing means (73), each of said operative ends (85) of said supporting arms (80, 81) being inserted in one of said radial recesses (51, 52) of said mobile element (50).

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Patent Number

268971

Indian Patent Application Number

5747/CHENP/2007

PG Journal Number

40/2015

Publication Date

02-Oct-2015

Grant Date

25-Sep-2015

Date of Filing

13-Dec-2007

Name of Patentee

ABB S.p.A.

Applicant Address

VIA VITTOR PISANI, 16, I-20124 MILANO, ITALY.

Inventors:

#	Inventor's Name	Inventor's Address
1	BRESCIANI, NICOLA	VIA CAVACCIO 3, I-24129 BERGAMO, ITALY.
2	BONETTI, LUIGI	VIA SAN BERNARDINO 93/A, I-24126 BERGAMO, ITALY.

PCT International Classification Number

H01H 71/02

PCT International Application Number

PCT/EP2006/062024

PCT International Filing date

2006-05-03

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	BG2005A000026	2005-05-13	Italy