DESC:FIELD OF THE INVENTION
The present invention relates to the field of protection devices, particularly circuit breakers, involving a novel system to reset the Thermo Magnetic release (TMR) by bringing back the breaker to normal condition by a link through mechanism when mechanism resets itself when the Thermo Magnetic release senses the fault & gives signal to the Mechanism.
BACKGROUND OF THE INVENTION
The Mechanical input from the TMR is from a single or plurality of links is called tripping from TMR. After tripping the link has to be reset to its initial position to be ready for next time. The Resetting of the mechanical link from the TMR is normally done by a separate link (reset component) riveted on to the mechanism as an integral part by fork (a driving rotating member in the circuit breaker mechanism).
The disadvantages with the existing systems/mechanism are:
· The resetting component on mechanism is dependent for tripping;
· It is free to rotate in the given constraint by gravity;
· To overcome the above, a separate spring is required;
· Assembly is difficult;
· Too many linking of components to achieve the resetting.

Therefore, present invention provides a system which overcomes the disadvantages present in existing system. The present invention provides a mechanism resets the thermal magnetic release when the Thermo Magnetic release senses the fault & gives signal to the Mechanism.

OBJECTS OF THE INVENTION
One object of the invention is to overcome the disadvantages/drawbacks of the prior art.
A basic object of the present invention is to provide a system for actuation and resetting of thermo-magnetic release.
Another object of the present invention is to integrate modular or inbuilt TMR with mechanism for resetting when it disengages mechanically from the TMR.
These and other advantages of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.

SUMMARY OF THE INVENTION
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. This summary is not an extensive overview of the present invention. It is not intended to identify the key/critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concept of the invention in a simplified form as a prelude to a more detailed description of the invention presented later.

In an aspect of the present invention, there is provided a system for actuation and resetting of a thermo-magnetic release in circuit breaker(s), the system comprising:
a mechanism assembly comprises a mechanism link assembly and a rotatable fork with an angled bend cam profile, connected to a single pole assembly of the circuit breaker;
a thermal magnetic release link riveted to the mechanism link assembly ;
a thermal magnetic release assembly comprises a lever for dispensing a trip signal from the thermal magnetic release assembly to a de-latcher of the mechanism assembly;
a thermal magnetic release latch system for latching and delatching the lever for with the mechanism assembly for resetting of the circuit breaker;
wherein the fork exerting force on the thermal magnetic release link, therefore provides a tangential force to the lever for resetting the thermal magnetic release in the circuit breaker.
Other aspects, advantages, and salient features of the invention will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the invention.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The following drawings are illustrative of particular examples for enabling methods of the present invention, are descriptive of some of the methods, and are not intended to limit the scope of the invention. The drawings are not to scale (unless so stated) and are intended for use in conjunction with the explanations in the following detailed description.
Figure 1 shows the circuit breaker at ON condition in perspective view.
Figure 2 shows the circuit breaker at TRIP condition in perspective view
Figure 3 shows the circuit breaker at RESET condition of TMR lever in perspective view
Fig 4 shows Single pole assembly
Fig 5 shows TMR Lever
Fig 6 shows TMR link
Fig 7 shows TMR washer
Fig 8 shows Mechanism Link Assembly
Fig 9 shows De-Latcher Pivot pin
Fig 10 shows De-Latcher
Fig 11 shows Biasing spring
Fig 12 shows TMR Latch system
Fig 13 shows the Fork
Fig 14 shows the TMR assembly
Persons skilled in the art will appreciate that elements in the figures are illustrated for simplicity and clarity and may have not been drawn to scale. For example the dimensions of some of the elements in the figure may be exaggerated relative to other elements to help to improve understanding of various exemplary embodiments of the present disclosure.
Throughout the drawings, it should be noted that like reference numerals are used to depict the same or similar elements, features and structures.

DETAILED DESCRIPTION OF THE PRESENT INVENTION
The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the invention as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the invention. Accordingly, it should be apparent to those skilled in the art that the following description of exemplary embodiments of the present invention are provided for illustration purpose only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.
It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise.
By the term “substantially” it is meant that the recited characteristic, parameter, or value need not be achieved exactly, but that deviations or variations, including for example, tolerances, measurement error, measurement accuracy limitations and other factors known to those of skill in the art, may occur in amounts that do not preclude the effect the characteristic was intended to provide.
Accordingly, present invention provides a system for actuation and resetting of a thermo-magnetic release in circuit breaker(s).
The Construction of the assembly mechanism of the present invention is explained with reference to the accompanying figures.
The Fork 12 is a driving rotating member of the mechanism assembly 6. The Mechanism assembly 6 comprises of mechanism link assembly 7 mounted on a single pole assembly 2 after which the plurality of the single pole assembly 2 is assembled at the sides to form a full breaker assembly 1 on to which the TMR assembly is fitted 13 to form a complete circuit breaker 1. When the fork 12 is rotated to reset the circuit breaker 1 when the system trips. While resetting the angled bend cam 121 exerts a force on front bend 42 of TMR link 4, which in turn delivers a tangential force on the rear cam 41 by a torque which is inhibited on the TMR link 4. The Tangential force is disseminated to the TMR lever 3 through cam profile B 32. Thus results in achieving the reset function by latching the latch point 31 on the TMR lever 3. This latching and delatching happens with the help of TMR latch system. Then the system is turned to ON by a fork 12 to make the contact. When the TMR assembly 13 senses the fault it dispenses the trip signal to delatcher 9 on tripping portion 91 of mechanism assembly 6 through cam profile A 33 on tmr lever 3.The biasing spring 10 which is not only used to retain the delatcher 9 in its position but also retains the TMR link 4.
The biasing spring is a double legged torsion spring. It has two arms one fixed 102 & other moving arm 102 apart from this there is live moving bridge 103. The live moving bridge 103 is used retain the delatcher& moving arm 101 will load TMR link4. The TMR washer 5 is used to avoid jamming of TMR link 4 while riveting, which ensures free rotary motion of the link. The TMR washer also minimizes the tilting of the TMR link4 while functioning. The Rear bend 43 stops the motion of the TMR link 4 during breaker ON condition, which is required because the link is spring loaded.
The invention comprises of a Mechanism assembly 6 in which mechanism link assembly 7 in which TMR link 4 & TMR washer 5 is riveted. TMR assembly 13 contains a TMR lever 3, which is used to dispense the trip signal from TMR & cam profile B on the same is used for reset by a leverage delivered rear cam 41 on the TMR link 4.
When the fork’s 12 angled bend cam 121 exerts a force on front bend 42 of TMR link 4, which in turn delivers a tangential force on the rear cam 41 by a torque which is inhibited on the TMR link 4. The Tangential force is disseminated to the TMR lever 3 through cam profile B 32. Thus results in achieving the function.
1. Circuit breaker
2 Single pole assembly
3. TMR Lever
31 Latch point
32 cam profile A
33 Cam profile B
4. TMR link
41 Rear cam
42 Front bend
43 Rear bend
44 pivot axis
5. TMR washer
6. Mechanism assembly
7. Mechanism Link Assembly
8. De-Latcher Pivot pin
9. De-Latcher
91 Tripping portion
10. Biasing spring
101 Moving arm
102 fixed arm
103 live moving bridge
11. TMR Latch system
12. Fork
121 Angled bend cam
13. TMR assembly

ADVANTAGES:
· Resetting is independent of tripping
· Spring loaded to avoid mumbling of the link.
· Spring is already a part of mechanism
· Modular assembly- Can be surpassed if not required
· Multiple cam profiles on a single member. ,CLAIMS:1. A system for actuation and resetting of a thermo-magnetic release in circuit breaker(s), the system comprising:
a mechanism assembly comprises a mechanism link assembly and a rotatable fork with an angled bend cam profile, connected to a single pole assembly of the circuit breaker;
a thermal magnetic release link connected to the mechanism link assembly ;
a thermal magnetic release assembly comprises a lever for dispensing a trip signal from the thermal magnetic release assembly to a de-latcher of the mechanism assembly;
a thermal magnetic release latch system for latching and delatching the lever with the mechanism assembly for resetting of the circuit breaker;
wherein the fork exerting force on the thermal magnetic release link, therefore provides a tangential force to the lever for resetting the thermal magnetic release in the circuit breaker.
2. The system as claimed in claim 1, wherein the fork is rotated during tripping the circuit breaker, whereby the angled bend cam profile exerting a force on a front bend of the thermal magnetic release link for resetting the circuit breaker.

3. The system as claimed in claim 2, wherein the front bends of the thermal magnetic release link transversinga tangential force on a rear cam profile of the link by torque.

4. The system as claimed in claim 3, wherein the tangential force disseminates to the lever through a cam profile, therefore latching the lever to a latch point on the latch system to facilitate resetting of the thermal magnetic release in the circuit breaker.
5. The system as claimed in claim 1, wherein the thermal magnetic release link is riveted to the mechanism link assembly using a washer for facilitating rotary motion of the link.
6. The system as claimed in claim 1, wherein motion of the thermal magnetic release link is stopped by rear bend of the thermal magnetic release link, in On condition of the circuit breaker.
7. The system as claimed in claim 1, wherein the mechanism assembly comprises a biasing spring for retaining the position of the de-latcher and the link.
8. The system as claimed in claim 7 wherein the biasing spring comprises a fixed arm, a moving arm and a live moving bridge.
9. The system as claimed in claim 1, wherein the live moving bridge retaining the position of the de-latcher and the moving arm retaining the position of the link.
10. The system as claimed in claim 1, wherein the thermal magnetic release assembly sensing a fault in the circuit breaker and dispensing the trip signal to tripping part of the delatcher through another cam profile of the lever.
11. The system as claimed in claim 1, wherein the lever having a structure comprises plurality of cam profile(s) and the latch point.