WO2023135604A1 - A toggling arrangement for a switching device - Google Patents

A toggling arrangement for a switching device Download PDF

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Publication number
WO2023135604A1
WO2023135604A1 PCT/IN2022/050179 IN2022050179W WO2023135604A1 WO 2023135604 A1 WO2023135604 A1 WO 2023135604A1 IN 2022050179 W IN2022050179 W IN 2022050179W WO 2023135604 A1 WO2023135604 A1 WO 2023135604A1
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WO
WIPO (PCT)
Prior art keywords
rotor
switching device
operating handle
toggling
rotation
Prior art date
Application number
PCT/IN2022/050179
Other languages
French (fr)
Inventor
Amit Chaudhary
Original Assignee
Novateur Electrical & Digital Systems Private Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Novateur Electrical & Digital Systems Private Limited filed Critical Novateur Electrical & Digital Systems Private Limited
Publication of WO2023135604A1 publication Critical patent/WO2023135604A1/en

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Classifications

    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/365—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42—Knife-and-clip contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/20—Driving mechanisms allowing angular displacement of the operating part to be effective in either direction
    • H01H19/24—Driving mechanisms allowing angular displacement of the operating part to be effective in either direction acting with snap action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing

Definitions

  • the present invention generally relates to a switching device .
  • the present invention relates to a toggling arrangement for the switching device .
  • An embodiment of the present invention discloses A toggling arrangement for transitioning a switching device between different operational modes .
  • the toggling arrangement includes a top rotor operationally coupled to an operat ing handle on one face and a middle rotor on the other . Further, the middle rotor configured to rotationally couple to the top rotor and slidably communicate with spring sliders , such that the spring sliders are in same plane as the middle rotor .
  • the toggling arrangement also includes a bottom rotor configured to rotationally couple with the middle rotor and communicate with moving carrier .
  • the rotation of the top rotor, the middle rotor and the bottom rotor along anticlockwise and clockwise direction by the operating handle movement transitions the switching device into dif ferent operational modes amounting to one of : engagement and disengagement of the spring sliders and the moving carriers .
  • the middle rotor has two inverted V shaped profiles opposite to each other in a same plane , such that upon rotation of the middle rotor in one of : clockwise and anticlockwise direction the V shaped profiles contact with the spring sliders to engage the switching device in a first operational mode and upon rotation of the middle rotor in direction opposite to direction of engagement in the first operational mode the V shaped profiles slides beyond the spring sliders to engage the switching device in a second operational mode .
  • the first operational mode of the switching device is ON mode that facilitates in connecting one or more power sources to one or more loads as sociated with the switching device and wherein the second operational mode of the switching device is OFF mode that facilitates in disconnecting one or more power sources from one or more loads as sociated with the switching device .
  • the top rotor, the middle rotor and the bottom rotor continue rotating in the direction of movement of the operating handle till the two inverted V shaped profiles contact with the spring sliders on either side and the moving carrier is moved linearly up to connect the one or more power sources to the one or more loads and switching ON of the switching device .
  • the top rotor, the middle rotor and the bottom rotor continue rotating in direction of movement of the operating handle as the two inverted V shaped profiles slid beyond the spring sliders on either side and the moving carrier is moved linearly down to disconnect the one or more power sources from the one or more loads and switching OFF of the switching device .
  • An embodiment of the present invention discloses , a switching device for control of connection between one or more load and one or more power sources by transitioning between different operational modes .
  • the switching device includes a base , a cover, an operating handle and a toggling arrangement .
  • the toggling arrangement includes a top rotor operationally coupled to the operating handle on one face and a middle rotor on the other .
  • the middle rotor configured to rotationally couple to the top rotor and slidably communicate with spring sliders of the switching device , such that the spring sliders are in same plane as the middle rotor .
  • the toggling arrangement also includes a bottom rotor configured to rotationally couple with the middle rotor and communicate with moving carriers of the switching device .
  • the middle rotor has two inverted V shaped profiles opposite to each other in a same plane , such that upon rotation of the middle rotor in one of : clockwise and anticlockwise direction the V shaped profiles contact with the spring sliders to engage the switching device in a first operational mode and upon rotation of the middle rotor in direction opposite to direction of engagement in the first operational mode the V shaped profiles slides beyond the spring sliders to engage the switching device in a second operational mode .
  • the first operational mode of the switching device is ON mode that facilitates in connecting one or more power sources to one or more loads as sociated with the switching device and wherein the second operational mode of the switching device is OFF mode that facilitates in disconnecting one or more power sources from one or more loads as sociated with the switching device .
  • the present invention discloses a mechanical toggling arrangement for the switching devices having an isolation capability, which has capability to make , break and carry current .
  • the toggling arrangement also enables the quick make and quick break capability for multiple types of contact arrangement s . Further, the toggling arrangement switches the contact arrangement of a device load from one source to another source or break the power to the load through manual operation or through automatic operation .
  • the present invention discloses an as sembly of mechanical toggling arrangement comprising of one or more mobile members that can conduct current and one or more stationary members that can conduct current , a mobile bridge arrangement to house the mobile conducting members and contact pres sure springs , the as sembly being mount over the toggle support springs placed in insulated or noninsulated condition for ease of as sembly and being ef fective in coordinating the quicker switching operation .
  • Figure 1 illustrates an exploded view of a switching device in accordance with an embodiment of the present invention
  • Figures 2 (a) and 2 (b) illustrate an isometric view of switching device in accordance with an embodiment of the present invention
  • Figures 3 (a) -3 (g) illustrate an isometric view of internal arrangement of the switching device in different operational modes in accordance with an embodiment of the present invention
  • Figure 4 (a) illustrates an isometric view of toggling arrangement with knife type contacts in accordance with an embodiment of the present invention
  • Figure 4 (b) illustrates an isometric view of toggling arrangement with butt type contacts in accordance with an embodiment of the present invention
  • Figure 4 (c) illustrates an isometric view of toggling arrangement with wedge type contacts in accordance with an embodiment of the present invention
  • Figure 4 (d) illustrates an isometric view of toggling arrangement with blade type contacts in accordance with an embodiment of the present invention
  • Figure 5 illustrates an isometric view of springs associated with toggling arrangement of the switching device in accordance with an embodiment of the present invention
  • Figures 6 (a) and 6 (b) illustrate a cross sectional view of switching device in accordance with an embodiment of the present invention.
  • Figures 7 (a) -7 (d) illustrate an isometric view of various orientations of a toggling arrangement in accordance with an embodiment of the present invention.
  • Figure 1 illustrates an exploded view of a switching device 100 in accordance with an embodiment of the present invention .
  • the swit ching device 100 may control connection between one or more load and one or more power sources by transitioning between dif ferent operational modes .
  • the switching device 100 may be mounted on metal rail by mounting clip 101 inside the distribution board .
  • a first operational mode of the switching device 100 may be ON mode that facilitates in connecting one or more power sources to one or more loads as sociated with the switching device 100 . Further, a second operational mode of the switching device 100 may be OFF mode that facilitates in disconnecting one or more power sources from one or more loads as sociated with the switching device 100 .
  • the switching device 100 may include a base 102 , a cover 104 , an operating handle 10 6 and a toggling arrangement .
  • the toggling arrangement may include a top rotor 108 , a middle rotor 110 and a bottom rotor 112 .
  • the toggling arrangement may be modular or inbuilt that can drive the mobile contact member of numerous poles that is supporting the various phases of the supply system connected through a single carrier or multi-polar carrier either in linear motion or in rotating motion, to make and break the circuit and to ensure the continuous carrying of current s .
  • the top rotor 108 may be operationally coupled to the operating handle 10 6 on one face and a middle rotor 110 on the other . Further, the mrddle rotor 110 may be configured to rotationally couple to the top rotor 108 and slidably communicate with spring sliders 114 of the switching device 100 . In an embodiment of the present invention, the spring sliders 114 may be in same plane as the middle rotor 110 . Further, the spring sliders 114 may be coupled to their respective toggle support springs 118 that enable actuation of the spring sliders 114 along horizontal axis for make and break of circuit from source to load .
  • a bottom rotor 112 may be configured to rotationally couple with the middle rotor 110 and communicate with moving carriers 11 6 of the switching device 100 .
  • the moving carriers 11 6 may be coupled to their respective electrical support springs 120 that enable actuation of the moving carriers 11 6 along horizontal axis for make and break of circuit from source to load .
  • the top motor, the middle rotor 110 and the bottom rotor 112 may be concentrically coupled to each other, such that they have same axis of rotation .
  • the middle rotor 110 may have two inverted V shaped profiles opposite to each other in a same plane .
  • the moving carrier 11 6 may be of dif ferent types based on their shape , such as knife type moving carrier 11 6 , butt type moving carrier 11 6 , wedge type moving carrier 11 6 and blade type moving carrier 11 6 as illustrated in figures 4 ( a ) , 4 (b ) , 4 ( c ) and 4 ( d) , respectively .
  • the top rotor 108 , the middle rotor 110 and the bottom rotor 112 may continue rotating in the direction of movement of the operating handle 10 6 till the two inverted V shaped profiles contact with the spring sliders 114 on either side and the moving carrier may be moved linearly up to connect the one or more power sources to the one or more loads and to engage the switching device 100 in the first operational mode i . e . switch ON, as shown in Figures 3 ( g) .
  • the top rotor 108 , the middle rotor 110 and the bottom rotor 112 may continue rotating in the direction of movement of the operating handle 10 6till the two inverted V shaped profiles slid beyond the spring sliders 114 on either side and the moving carrier may be moved linearly down to disconnect the one or more power sources from the one or more loads and to engage the switching device 100 in the second operational mode i . e . switch OFF , as shown in Figures 2 ( a ) and 2 (b ) .
  • the direction opposite to switching ON direction may be understood as anticlockwise , when the movement of the operating handle 10 6 in the clockwise direction may amount to engagement of the switching device 100 in the first operational mode i . e . switch ON .
  • the direction opposite to switching ON direction may be understood as clockwise , when the movement of the operating handle 10 6 in the anticlockwise direction may amount to engagement of the switching device 100 in the first operational mode i.e. switch ON.
  • figure 3 (f) illustrates a nonequilibrium state of the toggling arrangement while transitioning between the equilibrium position of ON and OFF mode of operation.
  • Figure 3 (a) illustrates an isometric view of internal arrangement of the switching device 100 in different operational modes in accordance with an embodiment of the present invention. Specifically, figure 3 (a) illustrates gear arrangement in OFF position after removing the cover 104 and operating handle 106.
  • an arrangement of a linearly transitioning moving carriers 116, the top rotor 108, the middle rotor 110 and the bottom rotor 112 in the first operational mode i.e. switch ON is illustrated in figure 3 (b) .
  • arrangement of the linearly transitioning moving carriers 116, the top rotor 108, the middle rotor 110 and the bottom rotor 112 in the second operational mode i.e. switch OFF is illustrated in figure 3 (c) .
  • an arrangement of rotationally transitioning moving carriers 116, the top rotor 108, the middle rotor 110 and the bottom rotor 112 in the second operational mode i.e. switch OFF is illustrated in figure 3 (d) .
  • the rotation of the operating handle 106 beyond the first threshold angle and the second threshold angle amounts to rotation of the toggling arrangement beyond equilibrium position of ON and OFF . Further, the rotation of the toggling arrangement may continue under influence of springs attached with spring sliders 114 and the moving carrier till the toggling arrangement attains equilibrium position .
  • Figure 5 illustrates an isometric view of springs as sociated with toggling arrangement of the switching device 100 in accordance with an embodiment of the present invention .
  • Figure 5 also illustrates toggle support springs 118 in same plane as the spring sliders 114 and electrical support springs 120 in a plane perpendicular to the toggle support springs 118 .
  • Figure 6 ( a ) illustrate the arrangement of magnetic support member 602 whose features ensure the required functioning of the switching device 100 during abnormal condition especially during break operation .
  • the magnetic support member 602 ef fectively removes the arcing during the break operation through electromagnetic force interactions with the contact members of the switching device 100 .
  • the current s flowing in the contact members during abnormal operations leads to arcing for moment deteriorating the switching device 100 over time and operations .
  • the attraction forces created by the magnetic support member 602 during these abnormal conditions maintains the switching device 100 performance .
  • the arrangement of the magnetic support member 602 provides the magnetically aiding but electrically resistive and thermally cooling path for the abnormal arc current to flow through .
  • figure 6 (b ) illustrates the view of as sembly of knife type contact arrangement , with 2 numbers of magnetic support member 602 and two numbers of mobrle contact member support spring held together .
  • the middle rotor 110 and the bottom rotor 112 may contact with the spring sliders 114 and the moving carriers 11 6 , respectively, such that the inverted V profiles of the middle rotor 110 push the spring sliders 114 and the bottom rotor 112 moves the moving carries , amounting to the switching device 100 toggling into the equilibrium position of the first operational mode of switch ON .
  • the toggling arrangement may be disturbed from equilibrium position of the first operational mode of switch ON .
  • the direction opposite to switching ON direction may be understood as anticlockwise , when the movement of the operating handle 10 6 in the clockwise direction may amount to engagement of the switching device 100 in the first operational mode i . e . switch ON .
  • the direction opposite to switching ON direction may be understood as clockwise , when the movement of the operating handle 10 6 in the anticlockwise direction may amount to engagement of the switching device 100 in the first operational mode i . e . switch ON .
  • the middle rotor 110 and the bottom rotor 112 may continue to move in direction of movement of the operating handle 10 6 even if the user stops applying force for the rotation .
  • the middle rotor 110 and the bottom rotor 112 may slide out of contact with the spring sliders 114 and the moving carriers 11 6 , respectively, such that the inverted V profiles of the middle rotor 110 slide and pull away from the spring sliders 114 and the bottom rotor 112 moves away from the moving carriers 11 6 , amounting to the switching device 100 toggling into the equilibrium position of the second operational mode of switch OFF .
  • Figure 7 ( a ) illustrates the OFF position of switching device 100 with the direction of force coming from toggle support springs 118 to the middle rotor 110 through spring sliders 114 . Further, figure 7 (b ) illustrates energizing of the toggle support spring 118 by compres sion due to the rotation of top rotor 108 which further rotate the middle rotor 110 and move the spring sliders 114 .
  • Figure 7 ( c ) illustrate as that as the middle rotor 110 cros s the threshold angle , energy stored in toggle support spring 118 may get released, in the direction shown by arrow, which further move the middle rotor 110 . Further, figure 7 ( d) illustrate rotation of middle rotor 110 to equilibrium position due to the releasing of stored energy in toggle support spring 118 .
  • the rotation of the top rotor 108 , the middle rotor 110 and the bottom rotor 112 along anticlockwise and clockwise direction by the operating handle 10 6 movement may transition the switching device 100 into dif ferent operational modes amounting to engagement or disengagement of the spring sliders 114 and the moving carriers 11 6 and in proces s make and break circuit from source to load .
  • the present invention provides the following ef fect s or advantages .
  • the present invention discloses a mechanical toggling arrangement for the switching device 100 s having an isolation capability, which has capability to make , break and carry current .
  • the toggling arrangement also enables the quick make and quick break capability for multiple types of contact arrangement s . Further, the toggling arrangement switches the contact arrangement of a device load from one source to another source or break the power to the load through manual operation or through automatic operation .
  • the present invention discloses an as sembly of mechanical toggling arrangement comprising of one or more mobile members that can conduct current and one or more stationary members that can conduct current , a mobile bridge arrangement to house the mobile conducting members and contact pres sure springs , the as sembly being mount over the toggle support springs 118 placed in insulated or non-insulated condition for ease of as sembly and being ef fective in coordinating the quicker switching operation .
  • the higher electrodynamic forces experienced during fault conditions are controlled by the spring arrangement s that maintains the contact pres sure for the fault current repulsions and the toggling support springs for keeping the mobile contact member to displace during fault conditions .
  • the support springs are especially helpful during 2 conditions .
  • the 1 st condition is while in ON condition, wherein the contact members are kept constant during fault conditions for certain period .
  • the 2nd condition is when attempting to close the contact members , the toggling support springs ensures the quicker operation of the device enabling no arcing phenomena during making of contact members .
  • the switching device 100 architecture space and as sembly conditions are improved with the toggling arrangement as there are les ser number of component s present . In general , if an as sembly pos ses ses more component s , controlling the operating limit s of many component s during abnormal operation conditions will be dif ficult .
  • the present invention solves this problem by providing a unique constructional aspect in the as sembly members of the switching device 100 , multiple part s are reutilized acros s the devices to keep the simplicity and symmetricity of the arrangement s of the mechanical and contact members .

Abstract

A toggling arrangement for transitioning a switching device (100) between different operational modes. The toggling arrangement includes a top rotor (108) operationally coupled to an operating handle (106) on one face and a middle rotor (110) on the other, the middle rotor (110) configured to rotationally couple to the top rotor (108) and slidably communicate with spring sliders (114), such that the spring sliders (114) are in same plane as the middle rotor (110) and a bottom rotor (112) configured to rotationally couple with the middle rotor (110) and communicate with moving carrier. Rotation of the top rotor (108), the middle rotor (110) and the bottom rotor (112) along anticlockwise and clockwise direction by the operating handle (106) movement, transitions the switching device (100) into different operational modes amounting to one of: engagement and disengagement of the spring sliders (114) and the moving carriers (116).

Description

A TOGGLING ARRANGEMENT FOR A SWITCHING DEVICE
FIELD OF THE INVENTION
[ 0001 ] The present invention generally relates to a switching device . In particular, the present invention relates to a toggling arrangement for the switching device .
BACKGROUND OF THE INVENTION
[ 0002 ] Generally mobile contact s are spring loaded both mechanically and electrically to provide the required contact pres sure while switching and required stored energy condition for continuous quick make-break toggling operation to ensure the flow of current and quicker break of current within the safe thermal and insulation boundaries .
[ 0003 ] In abnormal conditions , i . e . during the fault conditions , the voltage and current in the switching device changes extremely rapidly and there is heavy interaction from the forces of electromagnetism over the mechanical systems and current carrying component s themselves . During said conditions , the mechanical structures inside the switching device experience a huge electrodynamic force that may amount to damage of the switching device .
[ 0004 ] In the light of the above , there is a need for an arrangement which provides robust toggling of the switching device in fault conditions .
SUMMARY OF THE INVENTION
[ 0005 ] An embodiment of the present invention discloses A toggling arrangement for transitioning a switching device between different operational modes . The toggling arrangement includes a top rotor operationally coupled to an operat ing handle on one face and a middle rotor on the other . Further, the middle rotor configured to rotationally couple to the top rotor and slidably communicate with spring sliders , such that the spring sliders are in same plane as the middle rotor . The toggling arrangement also includes a bottom rotor configured to rotationally couple with the middle rotor and communicate with moving carrier . The rotation of the top rotor, the middle rotor and the bottom rotor along anticlockwise and clockwise direction by the operating handle movement , transitions the switching device into dif ferent operational modes amounting to one of : engagement and disengagement of the spring sliders and the moving carriers .
[0006] Further, the middle rotor has two inverted V shaped profiles opposite to each other in a same plane , such that upon rotation of the middle rotor in one of : clockwise and anticlockwise direction the V shaped profiles contact with the spring sliders to engage the switching device in a first operational mode and upon rotation of the middle rotor in direction opposite to direction of engagement in the first operational mode the V shaped profiles slides beyond the spring sliders to engage the switching device in a second operational mode .
[0007 ] Further, the first operational mode of the switching device is ON mode that facilitates in connecting one or more power sources to one or more loads as sociated with the switching device and wherein the second operational mode of the switching device is OFF mode that facilitates in disconnecting one or more power sources from one or more loads as sociated with the switching device .
[0008] Furthermore , when the operating handle is moved by a user in one of : clockwise and anticlockwise direction by a first threshold angle , the top rotor, the middle rotor and the bottom rotor continue rotating in the direction of movement of the operating handle till the two inverted V shaped profiles contact with the spring sliders on either side and the moving carrier is moved linearly up to connect the one or more power sources to the one or more loads and switching ON of the switching device .
[0009] Additionally, when the operating handle is moved by a user in direction opposite to switching ON direction by a second threshold angle , the top rotor, the middle rotor and the bottom rotor continue rotating in direction of movement of the operating handle as the two inverted V shaped profiles slid beyond the spring sliders on either side and the moving carrier is moved linearly down to disconnect the one or more power sources from the one or more loads and switching OFF of the switching device .
[0010] Further, the rotation of the operating handle beyond the first threshold angle and the second threshold angle amount s to rotation of the toggling arrangement beyond equilibrium position of ON and OFF , and the rotation of the toggling arrangement continues under influence of springs attached with spring sliders and the moving carrier till the toggling arrangement attains equilibrium position .
[0011] An embodiment of the present invention discloses , a switching device for control of connection between one or more load and one or more power sources by transitioning between different operational modes . The switching device includes a base , a cover, an operating handle and a toggling arrangement . The toggling arrangement includes a top rotor operationally coupled to the operating handle on one face and a middle rotor on the other . The middle rotor configured to rotationally couple to the top rotor and slidably communicate with spring sliders of the switching device , such that the spring sliders are in same plane as the middle rotor . The toggling arrangement also includes a bottom rotor configured to rotationally couple with the middle rotor and communicate with moving carriers of the switching device . Rotation of the top rotor, the middle rotor and the bottom rotor along anticlockwise and clockwise direction by the operating handle movement , transitions the switching device into dif ferent operational modes amounting to one of : engagement and disengagement of the spring sliders and the moving carriers .
[0012 ] Further, the middle rotor has two inverted V shaped profiles opposite to each other in a same plane , such that upon rotation of the middle rotor in one of : clockwise and anticlockwise direction the V shaped profiles contact with the spring sliders to engage the switching device in a first operational mode and upon rotation of the middle rotor in direction opposite to direction of engagement in the first operational mode the V shaped profiles slides beyond the spring sliders to engage the switching device in a second operational mode .
[ 0013 ] Further, the first operational mode of the switching device is ON mode that facilitates in connecting one or more power sources to one or more loads as sociated with the switching device and wherein the second operational mode of the switching device is OFF mode that facilitates in disconnecting one or more power sources from one or more loads as sociated with the switching device .
[ 0014 ] Furthermore , when the operating handle is moved by a user in one of : clockwise and anticlockwise direction by a first threshold angle , the top rotor, the middle rotor and the bottom rotor continue rotating in the direction of movement of the operating handle till the two inverted V shaped profiles contact with the spring sliders on either side and the moving carrier is moved linearly up to connect the one or more power sources to the one or more loads and switching ON of the switching device .
[ 0015 ] Additionally, when the operating handle is moved by a user in direction opposite to switching ON direction by a second threshold angle , the top rotor, the middle rotor and the bottom rotor continue rotating in direction of movement of the operating handle as the two inverted V shaped profiles slid beyond the spring sliders on either side and the moving carrier is moved linearly down to disconnect the one or more power sources from the one or more loads and switching OFF of the switching device .
[0016] Further, the rotation of the operating handle beyond the first threshold angle and the second threshold angle amount s to rotation of the toggling arrangement beyond equilibrium position of ON and OFF , and the rotation of the toggling arrangement continues under influence of springs attached with spring sliders and the moving carrier till the toggling arrangement attains equilibrium position .
[0017 ] Thus , the present invention discloses a mechanical toggling arrangement for the switching devices having an isolation capability, which has capability to make , break and carry current . The toggling arrangement also enables the quick make and quick break capability for multiple types of contact arrangement s . Further, the toggling arrangement switches the contact arrangement of a device load from one source to another source or break the power to the load through manual operation or through automatic operation . The present invention discloses an as sembly of mechanical toggling arrangement comprising of one or more mobile members that can conduct current and one or more stationary members that can conduct current , a mobile bridge arrangement to house the mobile conducting members and contact pres sure springs , the as sembly being mount over the toggle support springs placed in insulated or noninsulated condition for ease of as sembly and being ef fective in coordinating the quicker switching operation . BRIEF DESCRIPTION OF DRAWINGS
[0018] The following drawings are illustrative of preferred embodiments for enabling the present invention 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.
[0019] Figure 1 illustrates an exploded view of a switching device in accordance with an embodiment of the present invention;
[0020] Figures 2 (a) and 2 (b) illustrate an isometric view of switching device in accordance with an embodiment of the present invention;
[0021] Figures 3 (a) -3 (g) illustrate an isometric view of internal arrangement of the switching device in different operational modes in accordance with an embodiment of the present invention;
[0022] Figure 4 (a) illustrates an isometric view of toggling arrangement with knife type contacts in accordance with an embodiment of the present invention;
[0023] Figure 4 (b) illustrates an isometric view of toggling arrangement with butt type contacts in accordance with an embodiment of the present invention;
[0024] Figure 4 (c) illustrates an isometric view of toggling arrangement with wedge type contacts in accordance with an embodiment of the present invention;
[0025] Figure 4 (d) illustrates an isometric view of toggling arrangement with blade type contacts in accordance with an embodiment of the present invention; [0026] Figure 5 illustrates an isometric view of springs associated with toggling arrangement of the switching device in accordance with an embodiment of the present invention;
[0027] Figures 6 (a) and 6 (b) illustrate a cross sectional view of switching device in accordance with an embodiment of the present invention; and
[0028] Figures 7 (a) -7 (d) illustrate an isometric view of various orientations of a toggling arrangement in accordance with an embodiment of the present invention.
DETAILED DESCRIPTION OF DRAWINGS
[0029] The following disclosure is provided in order to enable a person having ordinary skill in the art to practice the invention. Exemplary embodiments are provided only for illustrative purposes and various modifications will be readily apparent to persons skilled in the art. The general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the invention. Also, the terminology and phraseology used is for the purpose of describing exemplary embodiments and should not be considered limiting. Thus, the present invention is to be accorded the widest scope encompassing numerous alternatives, modifications and equivalents consistent with the principles and features disclosed. For the purpose of clarity, details relating to technical material that is known in the technical fields related to the invention have not been described in detail so as not to unnecessarily obscure the present invention. [ 0030 ] Figure 1 illustrates an exploded view of a switching device 100 in accordance with an embodiment of the present invention . The swit ching device 100 may control connection between one or more load and one or more power sources by transitioning between dif ferent operational modes . The switching device 100 may be mounted on metal rail by mounting clip 101 inside the distribution board .
[ 0031 ] In an embodiment of the present invention, a first operational mode of the switching device 100 may be ON mode that facilitates in connecting one or more power sources to one or more loads as sociated with the switching device 100 . Further, a second operational mode of the switching device 100 may be OFF mode that facilitates in disconnecting one or more power sources from one or more loads as sociated with the switching device 100 .
[ 0032 ] In an embodiment of the present invention, the switching device 100 may include a base 102 , a cover 104 , an operating handle 10 6 and a toggling arrangement . The toggling arrangement may include a top rotor 108 , a middle rotor 110 and a bottom rotor 112 . In an embodiment of the present invention, the toggling arrangement may be modular or inbuilt that can drive the mobile contact member of numerous poles that is supporting the various phases of the supply system connected through a single carrier or multi-polar carrier either in linear motion or in rotating motion, to make and break the circuit and to ensure the continuous carrying of current s .
[ 0033 ] The top rotor 108 may be operationally coupled to the operating handle 10 6 on one face and a middle rotor 110 on the other . Further, the mrddle rotor 110 may be configured to rotationally couple to the top rotor 108 and slidably communicate with spring sliders 114 of the switching device 100 . In an embodiment of the present invention, the spring sliders 114 may be in same plane as the middle rotor 110 . Further, the spring sliders 114 may be coupled to their respective toggle support springs 118 that enable actuation of the spring sliders 114 along horizontal axis for make and break of circuit from source to load . Furthermore , a bottom rotor 112 may be configured to rotationally couple with the middle rotor 110 and communicate with moving carriers 11 6 of the switching device 100 . In an embodiment of the present invention, the moving carriers 11 6 may be coupled to their respective electrical support springs 120 that enable actuation of the moving carriers 11 6 along horizontal axis for make and break of circuit from source to load . Accordingly, the top motor, the middle rotor 110 and the bottom rotor 112 may be concentrically coupled to each other, such that they have same axis of rotation . In an embodiment of the present invention, the middle rotor 110 may have two inverted V shaped profiles opposite to each other in a same plane .
[ 0034 ] In an exemplary embodiment of the present invention, the moving carrier 11 6 may be of dif ferent types based on their shape , such as knife type moving carrier 11 6 , butt type moving carrier 11 6 , wedge type moving carrier 11 6 and blade type moving carrier 11 6 as illustrated in figures 4 ( a ) , 4 (b ) , 4 ( c ) and 4 ( d) , respectively . [ 0035 ] Further, when the operating handle 10 6 may be moved by a user in clockwise or anticlockwise direction by a first threshold angle , the top rotor 108 , the middle rotor 110 and the bottom rotor 112 may continue rotating in the direction of movement of the operating handle 10 6 till the two inverted V shaped profiles contact with the spring sliders 114 on either side and the moving carrier may be moved linearly up to connect the one or more power sources to the one or more loads and to engage the switching device 100 in the first operational mode i . e . switch ON, as shown in Figures 3 ( g) .
[ 0036] Furthermore , when the operating handle 10 6 may be moved by the user in direction opposite to switching ON direction by a second threshold angle , the top rotor 108 , the middle rotor 110 and the bottom rotor 112 may continue rotating in the direction of movement of the operating handle 10 6till the two inverted V shaped profiles slid beyond the spring sliders 114 on either side and the moving carrier may be moved linearly down to disconnect the one or more power sources from the one or more loads and to engage the switching device 100 in the second operational mode i . e . switch OFF , as shown in Figures 2 ( a ) and 2 (b ) . The direction opposite to switching ON direction may be understood as anticlockwise , when the movement of the operating handle 10 6 in the clockwise direction may amount to engagement of the switching device 100 in the first operational mode i . e . switch ON . Alternatively, the direction opposite to switching ON direction may be understood as clockwise , when the movement of the operating handle 10 6 in the anticlockwise direction may amount to engagement of the switching device 100 in the first operational mode i.e. switch ON. In an exemplary embodiment of the present invention, figure 3 (f) illustrates a nonequilibrium state of the toggling arrangement while transitioning between the equilibrium position of ON and OFF mode of operation.
[0037] Figure 3 (a) illustrates an isometric view of internal arrangement of the switching device 100 in different operational modes in accordance with an embodiment of the present invention. Specifically, figure 3 (a) illustrates gear arrangement in OFF position after removing the cover 104 and operating handle 106.
[0038] In accordance with an exemplary embodiment of the present invention, an arrangement of a linearly transitioning moving carriers 116, the top rotor 108, the middle rotor 110 and the bottom rotor 112 in the first operational mode i.e. switch ON is illustrated in figure 3 (b) . Furthermore, arrangement of the linearly transitioning moving carriers 116, the top rotor 108, the middle rotor 110 and the bottom rotor 112 in the second operational mode i.e. switch OFF is illustrated in figure 3 (c) . In accordance with another exemplary embodiment of the present invention, an arrangement of rotationally transitioning moving carriers 116, the top rotor 108, the middle rotor 110 and the bottom rotor 112 in the second operational mode i.e. switch OFF is illustrated in figure 3 (d) .
[0039] In an embodiment of the present invention, the rotation of the operating handle 106 beyond the first threshold angle and the second threshold angle amounts to rotation of the toggling arrangement beyond equilibrium position of ON and OFF . Further, the rotation of the toggling arrangement may continue under influence of springs attached with spring sliders 114 and the moving carrier till the toggling arrangement attains equilibrium position .
[ 0040 ] Figure 5 illustrates an isometric view of springs as sociated with toggling arrangement of the switching device 100 in accordance with an embodiment of the present invention . Figure 5 also illustrates toggle support springs 118 in same plane as the spring sliders 114 and electrical support springs 120 in a plane perpendicular to the toggle support springs 118 .
[ 0041 ] Figure 6 ( a ) illustrate the arrangement of magnetic support member 602 whose features ensure the required functioning of the switching device 100 during abnormal condition especially during break operation . The magnetic support member 602 ef fectively removes the arcing during the break operation through electromagnetic force interactions with the contact members of the switching device 100 . The current s flowing in the contact members during abnormal operations leads to arcing for moment deteriorating the switching device 100 over time and operations . The attraction forces created by the magnetic support member 602 during these abnormal conditions maintains the switching device 100 performance . The arrangement of the magnetic support member 602 provides the magnetically aiding but electrically resistive and thermally cooling path for the abnormal arc current to flow through . Further, figure 6 (b ) illustrates the view of as sembly of knife type contact arrangement , with 2 numbers of magnetic support member 602 and two numbers of mobrle contact member support spring held together .
[ 0042 ] In operation, when a user rotates the operating handle 10 6 in either a clockwise or anticlockwise direction beyond the first threshold angle , the toggling arrangement may be disturbed from equilibrium position of the second operational mode of switch OFF . Further, under the impact of the toggle support springs 118 and the elect rical support springs 120 the middle rotor 110 and the bottom rotor 112 may continue to move in direction of the movement of the operating handle 10 6 even if the user stops applying force for the rotation . Next , the middle rotor 110 and the bottom rotor 112 may contact with the spring sliders 114 and the moving carriers 11 6 , respectively, such that the inverted V profiles of the middle rotor 110 push the spring sliders 114 and the bottom rotor 112 moves the moving carries , amounting to the switching device 100 toggling into the equilibrium position of the first operational mode of switch ON .
[ 0043 ] Further, when the user rotates the operating handle 10 6 in direction opposite to switching ON direction beyond the second threshold angle , the toggling arrangement may be disturbed from equilibrium position of the first operational mode of switch ON . The direction opposite to switching ON direction may be understood as anticlockwise , when the movement of the operating handle 10 6 in the clockwise direction may amount to engagement of the switching device 100 in the first operational mode i . e . switch ON . Alternatively, the direction opposite to switching ON direction may be understood as clockwise , when the movement of the operating handle 10 6 in the anticlockwise direction may amount to engagement of the switching device 100 in the first operational mode i . e . switch ON . Further, under the impact of the toggle support springs 118 and the electrical support springs 120 the middle rotor 110 and the bottom rotor 112 may continue to move in direction of movement of the operating handle 10 6 even if the user stops applying force for the rotation . Next , the middle rotor 110 and the bottom rotor 112 may slide out of contact with the spring sliders 114 and the moving carriers 11 6 , respectively, such that the inverted V profiles of the middle rotor 110 slide and pull away from the spring sliders 114 and the bottom rotor 112 moves away from the moving carriers 11 6 , amounting to the switching device 100 toggling into the equilibrium position of the second operational mode of switch OFF .
[ 0044 ] Figure 7 ( a ) illustrates the OFF position of switching device 100 with the direction of force coming from toggle support springs 118 to the middle rotor 110 through spring sliders 114 . Further, figure 7 (b ) illustrates energizing of the toggle support spring 118 by compres sion due to the rotation of top rotor 108 which further rotate the middle rotor 110 and move the spring sliders 114 .
[ 0045 ] Figure 7 ( c ) illustrate as that as the middle rotor 110 cros s the threshold angle , energy stored in toggle support spring 118 may get released, in the direction shown by arrow, which further move the middle rotor 110 . Further, figure 7 ( d) illustrate rotation of middle rotor 110 to equilibrium position due to the releasing of stored energy in toggle support spring 118 .
[ 0046] Thus , the rotation of the top rotor 108 , the middle rotor 110 and the bottom rotor 112 along anticlockwise and clockwise direction by the operating handle 10 6 movement may transition the switching device 100 into dif ferent operational modes amounting to engagement or disengagement of the spring sliders 114 and the moving carriers 11 6 and in proces s make and break circuit from source to load .
[ 0047 ] Accordingly, the present invention provides the following ef fect s or advantages . The present invention discloses a mechanical toggling arrangement for the switching device 100 s having an isolation capability, which has capability to make , break and carry current . The toggling arrangement also enables the quick make and quick break capability for multiple types of contact arrangement s . Further, the toggling arrangement switches the contact arrangement of a device load from one source to another source or break the power to the load through manual operation or through automatic operation . The present invention discloses an as sembly of mechanical toggling arrangement comprising of one or more mobile members that can conduct current and one or more stationary members that can conduct current , a mobile bridge arrangement to house the mobile conducting members and contact pres sure springs , the as sembly being mount over the toggle support springs 118 placed in insulated or non-insulated condition for ease of as sembly and being ef fective in coordinating the quicker switching operation . Further, the higher electrodynamic forces experienced during fault conditions are controlled by the spring arrangement s that maintains the contact pres sure for the fault current repulsions and the toggling support springs for keeping the mobile contact member to displace during fault conditions . The support springs are especially helpful during 2 conditions . The 1 st condition is while in ON condition, wherein the contact members are kept constant during fault conditions for certain period . The 2nd condition is when attempting to close the contact members , the toggling support springs ensures the quicker operation of the device enabling no arcing phenomena during making of contact members . Further, the switching device 100 architecture , space and as sembly conditions are improved with the toggling arrangement as there are les ser number of component s present . In general , if an as sembly pos ses ses more component s , controlling the operating limit s of many component s during abnormal operation conditions will be dif ficult . The present invention solves this problem by providing a unique constructional aspect in the as sembly members of the switching device 100 , multiple part s are reutilized acros s the devices to keep the simplicity and symmetricity of the arrangement s of the mechanical and contact members .
[ 0048 ] While the exemplary embodiment s of the present invention are described and illustrated herein, it will be appreciated that they are merely illustrative . It will be understood by those skilled in the art that various modifications in form and detail may be made therein without departing from or of fending the spirit and scope of the invention as defined by the appended claims .

Claims

Claims :
1 . A toggling arrangement for transitioning a switching device 100 between dif ferent operational modes , the toggling arrangement comprising : a top rotor 108 operationally coupled to an operating handle 10 6 on one face and a middle rotor 110 on the other ; the middle rotor 110 configured to rotationally couple to the top rotor 108 and slidably communicate with spring sliders 114 , such that the spring sliders 114 are in same plane as the middle rotor 110 ; and a bottom rotor 112 configured to rotationally couple with the middle rotor 110 and communicate with moving carrier, wherein rotation of the top rotor 108 , the middle rotor 110 and the bottom rotor 112 along anticlockwise and clockwise direction by the operating handle 10 6 movement , transitions the switching device 100 into dif ferent operational modes amounting to one of : engagement and disengagement of the spring sliders 114 and the moving carriers 11 6 .
2 . The toggling arrangement as claimed in claim 1 , wherein the middle rotor 110 has two inverted V shaped profiles opposite to each other in a same plane , such that upon rotation of the middle rotor 110 in one of : clockwise and anticlockwise direction the V shaped profiles contact with the spring sliders 114 to engage the switching device 100 in a first operational mode and upon rotation of the middle rotor 110 in direction opposite to direction of engagement in the first operational mode the V shaped profiles slides beyond the spring sliders 114 to engage the switching device 100 in a second operational mode .
3 . The toggling arrangement as claimed in claim 2 , wherein the first operational mode of the switching device 100 is ON mode that facilitates in connecting one or more power sources to one or more loads as sociated with the switching device 100 and wherein the second operational mode of the switching device 100 is OFF mode that facilitates in disconnecting one or more power sources from one or more loads as sociated with the switching device 100 .
4 . The toggling arrangement as claimed in claim 3 , wherein when the operating handle 10 6 is moved by a user in one of : a clockwise and anticlockwise direction by a first threshold angle , the top rotor 108 , the middle rotor 110 and the bottom rotor 112 continue rotating in the direction of movement of the operating handle 10 6 till the two inverted V shaped profiles contact with the spring sliders 114 on either side and the moving carrier is moved linearly up to connect the one or more power sources to the one or more loads and switching ON of the switching device 100 .
5 . The toggling arrangement as claimed in claim 4 , wherein when the operating handle 10 6 is moved by a user in direction opposite to switching ON direction by a second threshold angle , the top rotor 108 , the middle rotor 110 and the bottom rotor 112 continue rotating in the direction of movement of the operating handle 10 6 as the two inverted V shaped profiles slid beyond the spring sliders 114 on either side and the moving carrier i s moved linearly down to disconnect the one or more power sources from the one or more loads and switching OFF of the switching device 100 .
6 . The toggling arrangement as claimed in claim 5 , wherein the rotation of the operat ing handle 10 6 beyond the first threshold angle and the second threshold angle amount s to rotation of the toggling arrangement beyond equilibrium position of ON and OFF , and the rotation of the toggling arrangement continues under influence of springs attached with spring sliders 114 and the moving carrier till the toggling arrangement attains equilibrium position .
7 . A switching device 100 for control of connection between one or more load and one or more power source s by transitioning between different operational modes , the switching device 100 comprising : a base 102 ; a cover 104 ; an operating handle 10 6 ; and a toggling arrangement comprising : a top rotor 108 operationally coupled to the operating handle 10 6 on one face and a middle rotor 110 on the other ; the middle rotor 110 configured to rotationally couple to the top rotor 108 and slidably communicate with spring s liders 114 of the switching device 100 , such that the spring sliders 114 are in same plane as the middle rotor 110 ; and a bottom rotor 112 configured to rotatronally couple with the middle rotor 110 and communicate with moving carriers 11 6 of the switching device 100 , wherein rotation of the top rotor 108 , the middle rotor 110 and the bottom rotor 112 along anticlockwise and clockwise direction by the operating handle 106 movement , transitions the switching device 100 into dif ferent operational modes amounting to one of : engagement and disengagement of the spring sliders 114 and the moving carriers 11 6 .
8 . The switching device 100 as claimed in claim 7 , wherein the middle rotor 110 has two inverted V shaped profiles opposite to each other in a same plane , such that upon rotation of the middle rotor 110 in one of : clockwise and anticlockwise direction the V shaped profiles contact with the spring sliders 114 to engage the switching device 100 in a first operational mode and upon rotation of the middle rotor 110 in direction opposite to direction of engagement in the first operational mode the V shaped profiles slides beyond the spring sliders 114 to engage the switching device 100 in a second operational mode .
9 . The switching device 100 as claimed in claim 8 , wherein the first operational mode of the switching device 100 is ON mode that facilitates in connecting one or more power sources to one or more loads as sociated with the switching device 100 and wherein the second operational mode of the switching device 100 is OFF mode that facilitates in disconnecting one or more power sources from one or more loads associated wrth the switching device 100 .
10 . The switching as claimed in claim 9 , wherein when the operating handle 10 6 is moved by a user in one of : clockwise and anticlockwise direction by a first threshold angle , the top rotor 108 , the middle rotor 110 and the bottom rotor 112 continue rotating in the direction of movement of the operating handle 10 6 till the two inverted V shaped profiles contact with the spring sliders 114 on either side and the moving carrier is moved linearly up to connect the one or more power sources to the one or more loads and switching ON of the switching device 100 .
11 . The switching device 100 as claimed in claim 10 , wherein when the operating handle 10 6 is moved by a user in direction opposite to switching ON direction by a second threshold angle , the top rotor 108 , the middle rotor 110 and the bottom rotor 112 continue rotating in direction of movement of the operating handle 10 6 as the two inverted V shaped profiles slid beyond the spring sliders 114 on either side and the moving carrier i s moved linearly down to disconnect the one or more power sources from the one or more loads and switching OFF of the switching device 100 .
12 . The switching device 100 as claimed in claim 11 , wherein the rotation of the operat ing handle 10 6 beyond the first threshold angle and the second threshold angle amount s to rotation of the toggling arrangement beyond equilibrium position of ON and OFF , and the rotation of the toggling arrangement continues under influence of springs attached with spring sliders 114 and the moving carrier till the toggling arrangement attains equilibrium position .
PCT/IN2022/050179 2022-01-13 2022-03-02 A toggling arrangement for a switching device WO2023135604A1 (en)

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IN202221002032 2022-01-13

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110259718A1 (en) * 2008-04-01 2011-10-27 Ewac Holding B.V. Electrical rotary switch
US20120006659A1 (en) * 2009-03-17 2012-01-12 Tokyo Cosmos Electric Co., Ltd. Rotary Switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110259718A1 (en) * 2008-04-01 2011-10-27 Ewac Holding B.V. Electrical rotary switch
US20120006659A1 (en) * 2009-03-17 2012-01-12 Tokyo Cosmos Electric Co., Ltd. Rotary Switch

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