Description:TECHNICAL FIELD
[0001] The present disclosure relates generally to the technical field of electrical. In particular, it pertains to a low voltage switch gear with a rotary mechanism to drive electrical switching devices.

BACKGROUND
[0002] Low or high voltage switchgears generally have a handle mechanism with a pivotal mechanism to open or close associated circuit. That is, the switching state of the auxiliary switch is dependent on a certain angular position of the handle insert with respect to the lower part. These switchgears are commonly known as fuse switch disconnectors. Depending on the different functions of a fuse switch-disconnector, different times of actuation of the auxiliary switch may be required with respect to the position of the handle insert relative to the base at the opening and closing of the fuse switch-disconnector. To ensure these different functions, thus a number of differently configured fuse-switch disconnectors are required, each having a different actuation point of the auxiliary switch in dependence on the angular position of the handle insert.
[0003] In prior arts, a number of mechanisms have been disclosed like a vacuum interrupter situated between first terminals and housing with a manual handle and lever mechanism for operation. Also in one prior art the power interrupter is designed with an internal contactor for use as a line or load switch constructed from lightweight materials.
[0004] In current system there are many complexities related to manufacturing and assembly which makes the design less feasible for large scale implementation. And also, it fails to satisfy some of the feature requirements of product, or the scope of features gets limited due to geometric constrains. The available space due to the multiple number of components is limited for further development. It involves complicated welding and intricate assembly which increase its cost and higher chances of failure.
[0005] FIG. 1 shows one such conventional switching device 100 including a vertical rotor 102, a horizontal gear 116 where both assisted by a plurality of spring 108 mechanism comprising spring arm 110 and spring pin 112 to drive the horizontal gear 116. The horizontal gear 116 is pivoted on a horizontal bush. A clockwise rotation of the vertical gear 102 rotates the horizontal gear 116 to engage the horizontal rotor through a pair of horizontal rotor pins to manually drive electrical contact assembly to one side on rotary mechanism contact of the switching device 100. It would therefore be additionally beneficial if the manual rotation can be replaced with a rotary mechanism with better features, less complexity, easier assembly and more reliability.
[0006] There is, therefore, a need to provide a simple, improved, and cost-effective solution that can eliminate the abovementioned problems of a conventional auxiliary axle.

OBJECTS OF THE INVENTION
[0007] A general object of the present disclosure is to provide a simple, cost-effective and technologically improved self-interlocking switching device.
[0008] An object of the present disclosure is to provide a switchgear device with minimum components, easy to manufacture results in more production efficiency.
[0009] An object of the present disclosure is to provide a switchgear device with no investment casting with press and machining components
[0010] An object of the present disclosure is to provide higher operating velocity mechanism by reducing rotary masses.

SUMMARY
[0011] Aspect of the present disclosure relate generally to the technical field of electrical. In particular, it pertains to a low voltage switch gear with a rotary mechanism to drive electrical switching devices.
[0012] In an aspect, the disclosure is a switchgear device with a rotary mechanism where the rotary mechanism includes a vertical rotor configured with a plurality of gears, a horizontal rotor configured with a horizontal rotor plate and a plurality of pins, a horizontal gear configured with a plurality of gear teeth, and a plurality of springs. The vertical rotor of the device is coupled to the horizontal gear to drive the horizontal gear and the horizontal gear is pivoted on a horizontal bush, that a clockwise rotation of the horizontal gear engages the horizontal rotor through a pair of horizontal rotor pins. The each horizontal rotor pin is coupled to one end of the mechanism spring guided by spring arm and another end of the mechanism spring is coupled to a spring pin acting as a pivot for a toggle process, and the horizontal rotor pins are extended outside the switchgear device to drive the at least one electrical contact assembly to at least one side on rotary mechanism contact of the switching device.
[0013] In an aspect, the rotation of the rotary mechanism is 90º to drive the at least one contact assembly to 45º of rotation in such a manner that the rotary mechanism converts the line of action of force at right angle.
[0014] In an aspect, the rotary mechanism is a toggle mechanism and the plurality of mechanical springs will be charged till a toggle point manually, and after the toggle point the horizontal rotor and the contact assemblies, both rotates by the mechanism spring energy independent of manual action.
[0015] In an aspect, the operation of the device 200 is configured for on, off, and test position separately.
[0016] In an aspect, the operation of the device from an off position to a test position is optimal at 45º anti-clockwise and not required for on, off, and test position separately.
[0017] In an aspect, the interlocking between the vertical rotor and the horizontal rotor is configured one over other such that the combination forms a changeover switch/bypass switch.
[0018] In an aspect, the horizontal gear facilitates the device completely independent from manual operation.
[0019] In an aspect, the making and breaking electrical contacts is more reliable and not influenced by any external driving force including the environmental factors.
[0020] In an aspect, material for the contact assemblies is selected any one from copper, brass, and iron.
[0021] Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0023] FIG. 1 illustrates a typical switchgear device with multiple gear assemblies and manual operation.
[0024] FIG. 2A, 2B, and 2C illustrates an exemplary representation of a front view, a general view and a bottom view of the disclosed switchgear device, in accordance with embodiments of the present disclosure.
[0025] FIG. 3A, 3B, and 3C illustrate exemplary compact views depicting front view, top view, and side views of the disclosed rotary mechanism, such as rotary mechanism shown in FIG. 2A, in accordance with embodiments of the present disclosure.
[0026] FIG. 4A, 4B, and 4C illustrates an exemplary operational view depicting on, dead center, and off positions of the disclosed rotary mechanism, in accordance with embodiments of the present disclosure.
[0027] FIG. 5A and 5B illustrates an exemplary operational view depicting off position and a bottom view of the disclosed rotary mechanism, in accordance with embodiments of the present disclosure.
[0028] FIG. 6A and 6B illustrates an exemplary operational view depicting test position and a bottom view of the disclosed rotary mechanism, in accordance with embodiments of the present disclosure.

DETAILED DESCRIPTION
[0029] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0030] Embodiments explained herein relate generally to the technical field of electrical. In particular, it pertains to a low voltage switch gear with a rotary mechanism to drive electrical switching devices.
[0031] In an embodiment, the disclosure is a switchgear device with a rotary mechanism where the rotary mechanism includes a vertical rotor configured with a plurality of gears, a horizontal rotor configured with a horizontal rotor plate and a plurality of pins, a horizontal gear configured with a plurality of gear teeth, and a plurality of springs. The vertical rotor of the device is coupled to the horizontal gear to drive the horizontal gear and the horizontal gear is pivoted on a horizontal bush, that a clockwise rotation of the horizontal gear engages the horizontal rotor through a pair of horizontal rotor pins. The each horizontal rotor pin is coupled to one end of the mechanism spring guided by spring arm and another end of the mechanism spring is coupled to a spring pin acting as a pivot for a toggle process, and the horizontal rotor pins are extended outside the switchgear device to drive the at least one electrical contact assembly to at least one side on rotary mechanism contact of the switching device.
[0032] Referring to FIG. 2A, 2B, and 2C where a front view, a general view and bottom views of the rotary mechanism 202 is shown. The present disclosure is to achieve rotation of a switchgear device 200 where the mechanical energy is used to get the desired velocity and energy of contact assemblies even if operated by any speed and energy. In the disclosure, rotation of mechanism is 90º, and it has to drive the contact assembly that has 45º of rotation. Also, the rotary mechanism 202 has to convert the line of action of force at right angle. As the rotary mechanism 202 is a toggle mechanism, a plurality of spring 108-1 and 108-2 will be charged till dead centre or the toggle point manually and hereafter rotation of the rotary mechanism 202 will be driven by the springs 108 independently without any manual operation.
[0033] In an embodiment, a low voltage switchgear device 200 with a rotary mechanism 202 where the rotary mechanism 202 includes a vertical rotor 102 configured with a plurality of gears 204, a horizontal rotor configured with a horizontal rotor plate 206 and a plurality of pins 110-1 and 110-2, a horizontal gear 116 configured with a plurality of gear teeth, and a plurality of springs 108. The vertical rotor 102 of the device 200 is coupled to the horizontal gear 116 to drive the horizontal gear 116 and the horizontal gear 116 is pivoted on a horizontal bush 106, that a clockwise rotation of the horizontal gear 116 engages the horizontal rotor 104 through a pair of horizontal rotor pins 110.
[0034] Furthermore, each horizontal rotor pin 110 is coupled to one end of the mechanism spring 108 guided by spring arm 112 and another end of the mechanism spring 108 is coupled to a spring pin 114 acting as a pivot for a toggle process, and the horizontal rotor pins 110 are extended outside the switchgear device 200 to drive the at least one electrical contact assembly to at least one side on rotary mechanism 202 contact of the switchgear device 200.
[0035] FIG. 3A, 3B, and 3C shows compact views 300 depicting front view, top view, and side views of the disclosed rotary mechanism 202. The front view (FIG. 3A) of the rotary mechanism 202 horizontal rotor 104 which is coupled with the horizontal gear 116 with a bush 106 and the vertical rotor 102, whereas the top view (FIG.3B) depicts the vertical rotor 102 at the centre and the protruding ends of the horizontal rotor 104 whereas the side view (FIG.3C) of the rotary mechanism 202 depicts the positions of horizontal rotor 104 and the vertical rotor 102.
[0036] FIG. 4A, 4B, and 4C illustrates an exemplary operational view 400 depicting ON, dead centre, and off positions of the disclosed rotary mechanism 202. The mechanism spring 108 and horizontal rotor 104 rotates along with the vertical rotor 104 till they reach a dead centre 210. As the dead centre 210 is reached, further any slight rotating causes the mechanism springs 108-1 and 108-2 to release the charged energy that rotates the horizontal rotor 104 along with mechanism springs 108-1 and 108-2 without rotating the vertical rotor 102 by the same initial degrees of rotation and further till final ON position as shown in FIG. 4A.
[0037] In an embodiment, the FIG. 4C shows the switchgear to be initially in off position. When the vertical rotor 102 is operated clockwise direction to few degrees, say 30 degrees, then the horizontal gear 116 rotates in clockwise direction as depicted in FIG. 4B, without rotating the horizontal rotor 104. This rotation does not charge the mechanism spring 108-1 and 108-2 or rotates the any of the electrical contact in contact assembly.
[0038] Furthermore, when vertical rotor 102 is rotated, it rotates the horizontal gear 116 that rotates the horizontal rotor 104 by the CAM action between horizontal gear 116 and the horizontal rotor pin 110-1 and 110-2. The rotation of horizontal rotor charges the mechanism spring 108-1 and 108-2 without rotating the electrical contacts.
[0039] In an embodiment, the electrical contacts coupled with the horizontal rotor pins 110-1 and 110-2 will only rotate after the dead centre 210 without rotating the vertical rotor 102 till electrical contacts in contact assemblies are made. This provides quick make operation without human intervention and provides high speed and reliability.
[0040] In an embodiment, the vertical rotor 102 can be rotated in counter-clockwise direction and have a stable test position as shown in FIG. 4A. As the vertical rotor 102 rotates in counter-clockwise direction, the biasing spring 108-3 charges and hold the vertical rotor by the CAM profile of the test position CAM 212. The same profile also helps to bias the vertical rotor 102 in stable off position.
[0041] FIG. 5A and 5B illustrates an exemplary operational view 500 depicting off position and a bottom view of the disclosed rotary mechanism 202. Embodiment shows that for an on to off operation, the vertical rotor 102 will rotates counter-clockwise direction which rotates the horizontal gear 116 and horizontal rotor 104 without any delay as compared to off-on operation. This results in charging of mechanism springs 108-1 and 108-2 as the handle (not shown) is rotated. That results in less rotation of the handle for better indication in adverse condition. The handle is more biased to indicate on condition to prevent any threat for operation and give true on indication in all conditions.
[0042] FIG. 6A and 6B illustrates an exemplary operational view 600 depicting test position and a bottom view of the disclosed rotary mechanism 202. The vertical rotor 102 can be rotated in counter-clockwise direction without rotating the horizontal rotor 104 and horizontal gear 116 which in earlier prior art was restricted. The operation from off position to a test position is improved from 20º to 45º that resulted in to more desecrate on, off (500) and test (600) positions.
[0043] In an embodiment, optionally, the rotation of the vertical rotor 102 rotation in counter-clockwise direction can be used for connecting multiple rotary mechanism 202 one above the other to operate different electrical contacts for various purposes. The making and breaking electrical contacts is more reliable and not influenced by any external driving force including the environmental factors.
[0044] In an embodiment, the dead centre 210 which was at around 72º in prior art is now shifted to 45º of handle rotation that resulted in a convenient and satisfactory operation. Also, with the dead centre at 45º, handle padlocking will not be possible during contact welded condition and the handle will come back to ON position.
[0045] Thus, the present disclosure provides an improved, simple, and cost-effective solution which can eliminate the existing limitations of the conventional switchgear device 200 with manual operation. Due to less internal components, manufacturing cost as well as material cost is saved making switchgear 200 cost-effective and due to improved horizontal gear 116 designs, the mechanism is completely manually independent and simple.
[0046] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

ADVANTAGES OF THE INVENTION
[0047] The present disclosure provides a simple, cost-effective and technologically improved self-interlocking switching device.
[0048] The present disclosure provides a switchgear device with minimum components, easy to manufacture results in more production efficiency.
[0049] The present disclosure provides a switchgear device with no investment casting with press and machining components
[0050] The present disclosure provides higher operating velocity mechanism by reducing rotary masses.
, Claims:1. A low voltage switchgear device (200) with a rotary mechanism (202), the rotary mechanism (202) comprising:
a vertical rotor (102) configured with a plurality of gears (204);
a horizontal rotor (104) configured with a horizontal rotor plate (206) and a plurality of pins (110);
a horizontal gear (116) configured with a plurality of gear teeth; and
a plurality of springs (108);
wherein the vertical rotor (102) is coupled to the horizontal gear (116) to drive the horizontal gear (116) wherein the horizontal gear (116) is pivoted on a horizontal bush (106), such that a clockwise rotation of the horizontal gear 116 engages the horizontal rotor (104) through a pair of horizontal rotor pins (110), wherein each horizontal rotor pin (110) is coupled to one end of the mechanism spring (108) guided by spring arm (112) and another end of the mechanism spring (108) is coupled to a spring pin (114) acting as a pivot for a toggle process, wherein the horizontal rotor pins (110) are extended outside the switchgear device (200) to drive the at least one electrical contact assembly to at least one side on rotary mechanism (202) contact of the switchgear device (200).
2. The rotary mechanism claimed in claim 1, wherein the rotation of the rotary mechanism (202) is 90º to drive the at least one contact assembly to 45º of rotation in such a manner that the rotary mechanism (202) converts the line of action of force at right angle.
3. The rotary mechanism as claimed in claim 1, wherein the rotary mechanism (202) is a toggle mechanism wherein the plurality of mechanical springs (108) will be charged till a toggle point manually, and after the toggle point the horizontal rotor (104) and the contact assemblies, both rotates by the mechanism spring (108) energy independent of manual action.
4. The rotary mechanism as claimed in claim 1, wherein the operation of the rotary mechanism (202) is configured for on, off (500), and test position (600) separately.
5. The rotary mechanism as claimed in claim 4, wherein the operation of the rotary mechanism (202) from an off position (500) to a test position (600) is optimal at 45º anti-clockwise and not required for on, off (500), and test position (600) separately.
6. The rotary mechanism as claimed in claim 1, wherein the interlocking between the vertical rotor (102) and the horizontal rotor (104) is configured one over other such that the combination form a changeover switch/bypass switch.
7. The rotary mechanism as claimed in claim 1, wherein the horizontal gear (116) facilitate the device (200) completely independent from manual operation.
8. The rotary mechanism as claimed in claim 1, wherein the making and breaking electrical contacts is more reliable and not influenced by any external driving force including the environmental factors.
9. The rotary mechanism as claimed in claim 1, wherein material for the contact assemblies is selected any one from copper, brass, and iron.