EP2083432A2 - Multi I/O electromechanical micro switch - Google Patents
Multi I/O electromechanical micro switch Download PDFInfo
- Publication number
- EP2083432A2 EP2083432A2 EP08425699A EP08425699A EP2083432A2 EP 2083432 A2 EP2083432 A2 EP 2083432A2 EP 08425699 A EP08425699 A EP 08425699A EP 08425699 A EP08425699 A EP 08425699A EP 2083432 A2 EP2083432 A2 EP 2083432A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- micro switch
- pins
- piston
- input
- feature
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
- H01H3/264—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor using a travelling nut mechanism
-
- 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
- H01H19/54—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 the operating part having at least five or an unspecified number of operative positions
- H01H19/60—Angularly-movable actuating part carrying no contacts
- H01H19/62—Contacts actuated by radial cams
-
- 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
- H01H19/64—Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches
Definitions
- the present invention relates to an electromechanical device named "small size micro switch” that features “m” input pins and “n” output pins and is able by means of electrically driven mechanical movements to actuate a galvanic connection between each one of the input pins and each one of the output ones ensuring that the actuated connections remain indefinitely stable until new electrical command change their states by means of new mechanical movements.
- the present invention offers switching functionality in a reduced space with a zero connection attenuation, by realizing the connection electromechanically so that, once it has been actuated, it will indefinitely be maintained in a stable way without any energy consumption.
- the micro switch that is the present invention is particularly suited for use in telephony application in force of realization details that will be clarified below in the description.
- the input pins and the output pins can by in any number, their limit being determined by the micro switch size.
- the micro switch is schematized in its package 1 with highlighted input pins B1,B2, etc. and output pins A1,A2, etc.
- more command pins have been highlighted and indicated by the letter C : they can be used to read the states of the micro switch connections.
- the micro switch is made of more planes.
- the number of planes defines the input modularity - also referred as “vertical modularity” - of the micro switch.
- an " m by n" micro switch - i.e. with "m” input pins and "n” output pins - is made of "m” planes: to each plane the "n” output pins are routed.
- Every input pin and every output pin is made of a pole pair with galvanic isolation even though, for ease of presentation, we will refer to them simply as input pin or output pin, meaning by that an input pole pair or an output pole pair.
- Piston 3 that is a properly shaped ring described below, brings the vertical connections B , one for each plane; in other words to each piston 3 of a given plane P a different input pin B is connected.
- Every ring nut 4 brings the "m" horizontal connections A1,A2,etc., in other words to every ring nut of every plane are connected all the output pins.
- connection brushes 5a, 5b allow to maintain the galvanic connection between the two rings. More precisely, the brush 5a between the outer and the inner ring and the brush 5b between the inner ring and a sector of the outer ring.
- the connection brushes 5 are two: the first 5a integral with the ring nut 4 scrapes on the piston 3 during the latter's rotation, the second 5b integral with piston 3 scrapes on the ring nut 4 up to the desired sector.
- all the ring nuts 4 are divided in sectors S with reciprocal galvanic isolation, each one being connected to an output pin A. All the ring nuts 4 are fixed and reciprocally integral even though they are separated. More precisely, the ring nut 4, FIG.3 , is formed by two overlapped surfaces , reciprocally isolated, each one being connected to one of the poles of the output pin A. The upper surface will be connected to the positive pole A+ of the pin, while the lower surface will be connected to the negative pole A- . Hence every ring nut sector is connected at the same time to the two poles, positive and negative, with a galvanic separation, of an output pin A .
- FIG.3 shows the section of a ring nut 4 where are evident the connection surfaces to the poles A+ e A- of the output pins with the interposition of the neutral surface Ao.
- the pistons 3 of the various P planes can rotate in a mutually independent way and each one allows the connection to a different sector of the ring nut 4 .
- the pistons 3 are actually formed by two overlapped surfaces, mutually isolated, each one being connected to one of the poles of the input pin B .
- the upper surface will be connected to the positive pole of the pin, while the lower surface will be connected to the negative pole.
- Between the two surfaces analogously to what has been seen for the ring nut 4 , there is a further neutral surface, necessary for reading the states of the micro switch connections as will appear clear in the description that follows below.
- the piston 3 is actually a ring, properly inside shaped, FIG.4 , in such a way that can be hooked by an uplifting and rotation mechanism 7 - called "jack" - that, moving vertically, once it reaches the interesting pistion 3 , it imparts it the rotation to displace the brush 5 , FIG.2 , up to the sector of the ring nut 4 to be connected.
- the jack 7 is screwed on a worm screw 8 that is put into rotation by a small electric engine 2 driven by one of the command pins C .
- the rotation of the worm screw 8 moves up and down the jack 7 between the P planes of the micro switch up to the desired plane.
- the jack 7 on the worm screw 8 can have two states: free or blocked.
- the free state 7a the rotation of the worm screw 8 shifts up vertically the jack to the desired P plane, hooked to the piston 3 of that plane; in the blocked state 7b the jack rotates integrally with the worm screw 8 imparting the rotation to piston 3 to which it is now hooked up.
- the FIG.6 highlights the two states of the jack 6a, 6b and the relevant movement to coincide with the rotation of the worm screw 8 : in the first case, i.e. free state, to the rotation of the screw corresponds a vertical movement of the jack; in the second case, i.e. blocked state, to the rotation of the screw corresponds the integral rotation of the jack.
- the present invention is advantageous because, being arbitrarily defined the m by n modularity of the micro switch, by choosing the values m and n according to the desired device maximum size, it constitutes an atomic element that, associated to other elements, creates in a modular way a bigger element, whose output and input modularity sum up. More precisely by connecting more elements in parallel the input are summed up while connecting them in serially the outputs are summed up. In order to better understand how this can happen let's consider the equivalent circuit of the 3 by 4 micro switch above describe and illustrated in FIG.7 .
- the micro switches 10 have been considered that, open or closed create the desired connections between the input pins B and the output pins A; in the case represented in FIG.7 the active connections are between the pins B1-A3, B2-A1 and B3-A2 as those actuated in the previously described micro switch.
- FIG.8 it is illustrated how to obtain a 12 by 12 modularity device by connecting more 3 by 4 modularity devices as the one formerly described.
- the micro switch physically appears as an electronic device provided with pins , FIG.1 , so, naturally, it is very simple to combine serially or in parallel more micro switches soldered on a normal electronic printed circuit board. In this way the board itself constitutes the desired composed modularity device: the presented invention allows to realize connection matrices of whatever size.
- the micro switch can be supplied with a memory element 11 directly connected to the output pins A, one memory cell for each pin.
- the memory is automatically loaded with the values 1 or 0 that represent the state of the active connections. It must be made clear that the memory 11 is connected to the neutral pole Ao of the ring nut sector.
- FIG.11 graphically illustrates the previously described method so that it appears evident, in the case of the considered micro switch, that the memory values correspond to the active connections; precisely, in the above mentioned example, the memory values, using the hexadecimal notation, will be "412" that correspond to the active connections B1-A3, B2-A1, B3-A2.
- connection to the memory cells that in a simple way can be read on some pins C of the micro switch, FIG.1 , allows to control in any moment in a simple and sure way the state of the input-output connections actuated by the micro switch.
Landscapes
- Mobile Radio Communication Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Structure Of Telephone Exchanges (AREA)
Abstract
Description
- The present invention relates to an electromechanical device named "small size micro switch" that features "m" input pins and "n" output pins and is able by means of electrically driven mechanical movements to actuate a galvanic connection between each one of the input pins and each one of the output ones ensuring that the actuated connections remain indefinitely stable until new electrical command change their states by means of new mechanical movements.
- On the market some electronic switches are known, normally using relay technology, that, variously combined, can create multiple I/O switching functionality like the one offered by the micro switch described in this paper. In comparison with those realizations the present invention offers switching functionality in a reduced space with a zero connection attenuation, by realizing the connection electromechanically so that, once it has been actuated, it will indefinitely be maintained in a stable way without any energy consumption. The micro switch that is the present invention is particularly suited for use in telephony application in force of realization details that will be clarified below in the description.
- The input pins and the output pins can by in any number, their limit being determined by the micro switch size. For ease of presentation, in the following description we refer to a number of input pins "m" equal to 3 and to a number of output pins "n" equal to 4: that means we describe a "3 by 4" modularity micro switch. Naturally all the considerations made for such a modularity do apply more generally to a whatever "m by n" modularity.
- The invention is here below described for illustrative and not limitative purpose, by making reference to the following included figures:
-
FIG.1 : Micro switch in standing position and in upside down position, -
FIG.2 : Switching mechanism, -
FIG.3 : Section of a connection ring, -
FIG.4 : Horizontal section view of the uplifting and rotation mechanism, -
FIG.5 : Vertical section view of the uplifting and rotation mechanism, -
FIG.6 : Uplifting and rotation elements, -
FIG.7 : Equivalent circuit of the micro switch, -
FIG.8 : Example of serial/parallel composition, -
FIG.9 : Horizontal section of the micro switch, -
FIG.10 : Vertical section of the micro switch, -
FIG.11 : Schematic representation of the connections to the state memories. - In
FIG.1 the micro switch is schematized in its package 1 with highlighted input pins B1,B2,etc. and output pins A1,A2,etc. In the same figure more command pins have been highlighted and indicated by the letter C : they can be used to read the states of the micro switch connections. - The micro switch,
FIG:2 , is made of more planes. The number of planes defines the input modularity - also referred as "vertical modularity" - of the micro switch. To each plane P all the output pin connections - also referred as "horizontal" - are routed, therefore the plane size defines the micro switch horizontal modularity. Hence an " m by n" micro switch - i.e. with "m" input pins and "n" output pins - is made of "m" planes: to each plane the "n" output pins are routed. - For ease of presentation, as mentioned above, we consider m=3 - hence 3 input pins, that is three planes - and n=4 - hence four pins are routed onto the three planes -. All the considerations that will be made for such a modularity do apply naturally for any modularity.
- Every input pin and every output pin is made of a pole pair with galvanic isolation even though, for ease of presentation, we will refer to them simply as input pin or output pin, meaning by that an input pole pair or an output pole pair.
- As shown in
FIG:2 , in every plane P1,P2,P3 there are two concentric rings: the inner 3 called "piston" and the outer 4 called "ring nut". Piston 3 , that is a properly shaped ring described below, brings the vertical connections B , one for each plane; in other words to eachpiston 3 of a given plane P a different input pin B is connected. Everyring nut 4 brings the "m" horizontal connections A1,A2,etc., in other words to every ring nut of every plane are connected all the output pins. In the case we are describing, reported inFIG:2 , we have on the first plane P1 thepiston 3 to which is connected the pin B1 and thering nut 4 , divided in four sectors S1,S2,etc., with galvanic isolation, each one being connected to a pin A - hence A1,A2,etc - each one to a sector. In the same way we have on the second plane P2 thepiston 3, to which the pin B2 is connected, and thering nut 4 divided in four sectors S1,S2,etc., with galvanic isolation, each one being connected to a pin A - hence A1,A2,A3,A4 - each one to a sector; analogously we will have on the third plane P3. Twobrush elements 5, defined as connection brushes 5a, 5b allow to maintain the galvanic connection between the two rings. More precisely, the brush 5a between the outer and the inner ring and the brush 5b between the inner ring and a sector of the outer ring. By means of a rotation of thepiston 3 with respect to thering nut 4 , the connection can be modified moving thebrush 5 up to the interesting ring nut sector. As illustrated inFIG:2 , theconnection brushes 5 are two: the first 5a integral with thering nut 4 scrapes on thepiston 3 during the latter's rotation, the second 5b integral withpiston 3 scrapes on thering nut 4 up to the desired sector. InFIG:2 are realized the connections between the pins B1-A3, B2-A1 and B3-A2. Then it is clear how the micro switch can provide for wider modularity than the one described, just simply increasing the number of planes P , that must be as many as the input pins B, and increasing the number of sectors S that partition thering nuts 4 , the number of sectors must be equal to the number of output pins A. It is evident at this point that by increasing the modularity the size of the micro switch increases because the number of planes P grows and the ring nut circumference, hence the plane size, grows too in order to hold a bigger number of sectors. - As already mentioned, all the
ring nuts 4 are divided in sectors S with reciprocal galvanic isolation, each one being connected to an output pin A. All thering nuts 4 are fixed and reciprocally integral even though they are separated. More precisely, thering nut 4,FIG.3 , is formed by two overlapped surfaces , reciprocally isolated, each one being connected to one of the poles of the output pin A. The upper surface will be connected to the positive pole A+ of the pin, while the lower surface will be connected to the negative pole A- . Hence every ring nut sector is connected at the same time to the two poles, positive and negative, with a galvanic separation, of an output pin A . Actually every ring nut sector provides for a further connection layer, that for ease of description we call neutral pole Ao, that, as will appear evident in the following, allows to read the states of the connections. TheFIG.3 shows the section of aring nut 4 where are evident the connection surfaces to the poles A+ e A- of the output pins with the interposition of the neutral surface Ao. - The
pistons 3 of the various P planes can rotate in a mutually independent way and each one allows the connection to a different sector of thering nut 4 . Even thepistons 3 are actually formed by two overlapped surfaces, mutually isolated, each one being connected to one of the poles of the input pin B . The upper surface will be connected to the positive pole of the pin, while the lower surface will be connected to the negative pole. Between the two surfaces, analogously to what has been seen for thering nut 4 , there is a further neutral surface, necessary for reading the states of the micro switch connections as will appear clear in the description that follows below. Thepiston 3 is actually a ring, properly inside shaped,FIG.4 , in such a way that can be hooked by an uplifting and rotation mechanism 7 - called "jack" - that, moving vertically, once it reaches theinteresting pistion 3 , it imparts it the rotation to displace thebrush 5,FIG.2 , up to the sector of thering nut 4 to be connected. Actually, as shown inFIG.5 e FIG.6 , thejack 7 is screwed on aworm screw 8 that is put into rotation by a smallelectric engine 2 driven by one of the command pins C . The rotation of theworm screw 8 moves up and down thejack 7 between the P planes of the micro switch up to the desired plane. At this point thejack 7 is blocked integrally with theworm screw 8 and therefore the successive rotation generated by theelectric engine 2 imparts the rotation to thejack 7 itself that in turn rotates thepiston 3 of the plane P where it arrived. Differently stated, thejack 7 on theworm screw 8 can have two states: free or blocked. In thefree state 7a the rotation of theworm screw 8 shifts up vertically the jack to the desired P plane, hooked to thepiston 3 of that plane; in the blockedstate 7b the jack rotates integrally with theworm screw 8 imparting the rotation topiston 3 to which it is now hooked up. TheFIG.6 highlights the two states of the jack 6a, 6b and the relevant movement to coincide with the rotation of the worm screw 8 : in the first case, i.e. free state, to the rotation of the screw corresponds a vertical movement of the jack; in the second case, i.e. blocked state, to the rotation of the screw corresponds the integral rotation of the jack. - The present invention is advantageous because, being arbitrarily defined the m by n modularity of the micro switch, by choosing the values m and n according to the desired device maximum size, it constitutes an atomic element that, associated to other elements, creates in a modular way a bigger element, whose output and input modularity sum up. More precisely by connecting more elements in parallel the input are summed up while connecting them in serially the outputs are summed up. In order to better understand how this can happen let's consider the equivalent circuit of the 3 by 4 micro switch above describe and illustrated in
FIG.7 . In this equivalent circuit, themicro switches 10 have been considered that, open or closed create the desired connections between the input pins B and the output pins A; in the case represented inFIG.7 the active connections are between the pins B1-A3, B2-A1 and B3-A2 as those actuated in the previously described micro switch. - Now, using the graphical representation of the equivalent circuit, it is easily understandable how the serial or parallel connection of more components provides a higher modularity device. In
FIG.8 , for instance, it is illustrated how to obtain a 12 by 12 modularity device by connecting more 3 by 4 modularity devices as the one formerly described. - The micro switch physically appears as an electronic device provided with pins ,
FIG.1 , so, naturally, it is very simple to combine serially or in parallel more micro switches soldered on a normal electronic printed circuit board. In this way the board itself constitutes the desired composed modularity device: the presented invention allows to realize connection matrices of whatever size. - At this point all the elements that constitute the micro switch and the way they interact have been illustrated and for clarity purpose are reported in
FIG.9 and inFIG.10 where the various elements can be seen in a horizontal section relative to a generic plane, and a vertical section a-a. - It is clear also, at this point, how the invention is particularly suited for use in telephony application because all the connection mechanism in based upon two-way paths so that every pin has a double polarity and can be consequently associated to the two wires of a telephone pair.
- Optionally the micro switch can be supplied with a memory element 11 directly connected to the output pins A, one memory cell for each pin. Hence, bi soliciting with a test signal the input pins B, the memory is automatically loaded with the values 1 or 0 that represent the state of the active connections. It must be made clear that the memory 11 is connected to the neutral pole Ao of the ring nut sector. The
FIG.11 graphically illustrates the previously described method so that it appears evident, in the case of the considered micro switch, that the memory values correspond to the active connections; precisely, in the above mentioned example, the memory values, using the hexadecimal notation, will be "412" that correspond to the active connections B1-A3, B2-A1, B3-A2. The method of realization of the connection to the memory cells, that in a simple way can be read on some pins C of the micro switch,FIG.1 , allows to control in any moment in a simple and sure way the state of the input-output connections actuated by the micro switch.
Claims (6)
- Multio I/O micro switch, electrically driven, featuring, FIG.1, input pins B, output pins A and command/control pins C, being constituted by more planes P, each one containing two concentric rings, called respectively piston 3 and ring nut 4, capable to mutually rotate maintaining their connection by means of the connection brushes 5, and being constituted by a worm screw 8, a small electric engine 2 capable to rotate the worm screw 8 and a jack 7 capable of a double motion of uplifting and rotation , and being provided with memory cells 11, available on the market, that report the connection state between the pins.
- Electromechanical micro switch according to Claim#1 having the feature that the number of input pins B and the number output pins A are big at will and mutually independent.
- Electromechanical micro switch according to Claim#1 having the feature that the pins are constituted by more poles with galvanic mutual separation.
- Electromechanical micro switch according to Claim#1 having the feature that the input pins B are each one connected to a different piston 3 and the output pins A are all connected to each ring nut 4.
- Electromechanical micro switch according to Claim#1 having the feature that the piston 3, the ring nut 4 and the brushes 5 are all constituted by more overlapped surfaces with mutual galvanic separation.
- Electromechanical micro switch according to Claim#1 having the feature that the piston 3, is an inside shaped ring in order to be put into rotation by the jack 7 which is in turn constituted by a toothed ring capable to be engaged with the shape of the piston 3.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM20080029 ITRM20080029A1 (en) | 2008-01-21 | 2008-01-21 | MULTI-WAY ELECTROMECHANICAL MICROCOMMUTATOR |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2083432A2 true EP2083432A2 (en) | 2009-07-29 |
EP2083432A3 EP2083432A3 (en) | 2011-08-24 |
Family
ID=40290316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08425699A Withdrawn EP2083432A3 (en) | 2008-01-21 | 2008-10-31 | Multi I/O electromechanical micro switch |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2083432A3 (en) |
IT (1) | ITRM20080029A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3480745A (en) * | 1967-04-06 | 1969-11-25 | Amp Inc | Universal multiple switch |
US4866222A (en) * | 1988-04-18 | 1989-09-12 | G&H Technology, Inc. | Rotatively power operated electrical switching device |
US6831237B1 (en) * | 2003-11-25 | 2004-12-14 | Honeywell International Inc. | Swing arm switch actuator assembly |
-
2008
- 2008-01-21 IT ITRM20080029 patent/ITRM20080029A1/en unknown
- 2008-10-31 EP EP08425699A patent/EP2083432A3/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3480745A (en) * | 1967-04-06 | 1969-11-25 | Amp Inc | Universal multiple switch |
US4866222A (en) * | 1988-04-18 | 1989-09-12 | G&H Technology, Inc. | Rotatively power operated electrical switching device |
US6831237B1 (en) * | 2003-11-25 | 2004-12-14 | Honeywell International Inc. | Swing arm switch actuator assembly |
Also Published As
Publication number | Publication date |
---|---|
EP2083432A3 (en) | 2011-08-24 |
ITRM20080029A1 (en) | 2009-07-22 |
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