CN101199029A - Overvoltage protection with status signalling - Google Patents
Overvoltage protection with status signalling Download PDFInfo
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- CN101199029A CN101199029A CNA200680021791XA CN200680021791A CN101199029A CN 101199029 A CN101199029 A CN 101199029A CN A200680021791X A CNA200680021791X A CN A200680021791XA CN 200680021791 A CN200680021791 A CN 200680021791A CN 101199029 A CN101199029 A CN 101199029A
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- overvoltage protection
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- retainer
- scolder
- electrode
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Abstract
The present invention relates to an overvoltage protecting device which has state signal display and includes at least one nonlinear resistance element that has a cutting device connected with the overvoltage protection state signal display. The overvoltage protecting device comprises a single cutting device which is arranged with a mechanism that is used for the actuator according to the temperature of the nonlinear resistance element, and the actuator is connected with the staging shifting signal display of the actuator.
Description
Technical field
The present invention relates to have the overvoltage protection that status signal shows, it comprises at least one nonlinear resistive element, and this element has the shearing device that is connected with overvoltage protection status signal display.
Background technology
Overvoltage protection comprises one usually by the protection component of non-linear element (rheostat) expression, and the resistance value of this element can reduce gradually owing to the pulse load of its current loading and institute's protecting network.Owing to this reason, the electric current by protection component can progressively increase, and its temperature rise also can progressively increase.Therefore, overvoltage protection provides the temperature cutoff device, and this device is used for cutting off this protection component when this protection component no longer can suitably be fulfiled its function owing to its intensification.The cut-out of protection component and network can be passed through signalisation, and this notice or directly send with visual means on overvoltage protection is perhaps sent with remote mode by transmitting an appropriate signal.In case protection component cuts off from network, network is just no longer protected afterwards, therefore, must recover shielded state by the protection component of replacing overvoltage protection.
On the overvoltage protection that meets IEC 61643-11 Type II, special requirement have overvoltage protection state optical signal to show.This signal demonstration is divided into two state model, and a kind of is " kilter "-green color, and another kind is " malfunction "-red color.State model even can also represent by the different mode of color identifying therewith.The shortcoming that this type of signal shows is: overvoltage protection part reduce, yet when not being connected with the protected circuit disconnection by built-in shearing device yet, the signal demonstration is show state by any way not.Because the fact is to have only with the connection status of protected circuit or with protected circuit disconnection connection status just can show with signal; therefore; this type of situation will take place: during cutting off overvoltage protection owing to the overvoltage protection damage; and with invalid (cut-out) when overvoltage protection replaces with effective overvoltage protection; corresponding circuit is not protected, thereby the danger that not protected electric equipment damages owing to overvoltage can increase.
A kind of known solution is, comprises two shunt rheostats between live wire and zero line or ground wire, and each rheostat all has its oneself the device that cuts off from protected circuit.In case cut off owing to the fusion of temperature fuse causes first rheostat; by the compression spring effect; moving-member just moves to another position; this moving-member is had an effect to rotating parts on this position; thereby make it with only about half of overvoltage protection state optical signal display window shielding, form the optical information that worsens about overvoltage protection part thus.Moving-member activates the remote status signal demonstration of overvoltage protection simultaneously according to the change of its position.In case second rheostat is cut off, the whole window that optical signal shows forms the visual information that has been connected with the protected circuit disconnection about whole overvoltage protection thus just by identical machine-processed conductively-closed.
The shortcoming of this solution is: the complexity that several function element are quite high has been brought higher production cost with being connected.
Another kind of known solution is, its rheostat by a pair of parallel connection sends the overvoltage protection signal that damages of part, and these two rheostats are furnished with a pair of cut-out parts, and each parts all has the spring of oneself.Two functions of cutting off parts depend on two rheostatic temperature all the time, and one of them cuts off parts and can disconnect on the rheostat temperature lower than second parts and connecting.The optical signal display window shows green glow during for trouble-free state at overvoltage protection.Because operating load and rheostat are aging; these rheostats can progressively heat up; be disconnected connection until having the low shearing device that cuts off temperature; under the effect of first shearing device; the optical signal display window is covered by yellow; this has formed the relevant overvoltage protection visual information of part damage, and this signal begins to work thus.Simultaneously, by cutting off moving of parts, the remote status signal demonstration of overvoltage protection also is activated.Because the rheostat temperature further raises; under the acting in conjunction of second spring, second cut-out parts is disconnected connection, and moving of these parts covered the optical signal display window with redness; this means that overvoltage protection damages fully, and be connected with the protected circuit disconnection.
The shortcoming of this execution is: owing to using a pair of independently complete cut-out parts to bring quite high complexity, in addition, these parts have different enforcement structures, and this makes that this type of overvoltage protection cost is higher.
The objective of the invention is to eliminate or at least at utmost reduce the shortcoming of background technology.
Summary of the invention
Purpose of the present invention is by having the overvoltage protection realization that status signal shows; its principle is that it comprises single shearing device; this device is provided with the mechanism that is used for the displacement of two-stage at least of actuator according to the nonlinear resistive element temperature, and described actuator is connected with the classification shift signal display of described actuator.
When using single shearing device; with two shearing devices of use; each has a spring; promptly use the background technology of two springs to compare; the number of components of overvoltage protection has reduced; and the production complexity and the cost of overvoltage protection also are lowered, and have also kept whole functions simultaneously.
According to an advantageous embodiment; actuator is formed by a moving-member; moving-member is under thrust; work to being installed in the nonlinear resistive element electrode and the connection of the low melt (low-fusing) between the twisted wire that slip in the formula protection component main body with move mode; this moving-member has a surface that acts on the optical signal display pole at least; and have at least one to act on the surface that the remote signal that is positioned on the fixture shows setting element; and an end of described moving-member is distributed to described twisted wire; this end by a release temperature than twisted wire and nonlinear resistive element electrode between low melt connect the lower low melt of release temperature and connect, be connected with retainer.Rely on this retainer, described moving-member leans against the low melt that discharges on the described retainer and connects on the position and the space between the twisted wire of this moving-member twisted pair wire generation effect of back.
According to another advantageous embodiment, actuator is formed by the "T"-shaped bar that is connected with spring, and a support arm of described "T"-shaped lever is to described conduction Connection Element generation effect; The scolder of low melting temperature links to each other with adapter one end of described conduction Connection Element by having more; The scolder of high melting temperature links to each other with the electrode of nonlinear resistive element and described adapter is by having more; simultaneously; described adapter is connected with the overvoltage protection contact in the mode of conducting electricity on electric, and the mobile retainer of described Connection Element is distributed to described Connection Element.
According to another advantageous embodiment; actuator is formed by the conduction Connection Element that is connected with spring; and described Connection Element is connected to the electrode of nonlinear resistive element and the twisted wire of overvoltage protection contact in the mode of conducting electricity on electric; electrode is electric go up with the scolder link by having high melting temperature more of the mode of conduction with is connected continuous; the scolder of low melting temperature links to each other with the conduction Connection Element and this connection is by having more, and the retainer of conduction Connection Element is arranged in the described connection.
According to another advantageous embodiment; actuator is by forming with bar that spring is connected with conductive plate; this conductive plate passes a hole on the nonlinear resistive element electrode; and described conductive plate is in initial condition; when described overvoltage protection complete when intact; be connected to the electrode of nonlinear resistive element by having the scolder of low melting temperature more; the end of this conductive plate behind described electrode; described conductive plate is furnished with retainer, and this retainer can be by the heat release of the release temperature higher than the described solder temperature of fusing.
Simultaneously, in the time of can forming than the temperature required higher scolder of the described scolder of fusing by fusion temperature by the described retainer of heat release, favourable to equipment work.
Description of drawings
The present invention illustrates schematically in the drawings, and wherein, Fig. 1 illustrates the layout that overvoltage protection first is implemented example with end view; Fig. 2 illustrates the layout that overvoltage protection first is implemented example with perspective view; Fig. 3 a illustrates the enforcement example of moving-member among Fig. 1 and Fig. 2; Fig. 3 b illustrates the enforcement example of element among Fig. 1 and Fig. 2; Fig. 4 a illustrates the layout that overvoltage protection second is implemented example with perspective view; Fig. 4 b illustrates the layout of the overvoltage protection second enforcement example of Tape movement part cross section with perspective view; Fig. 5 a illustrates the layout that overvoltage protection the 3rd is implemented example with perspective view; Fig. 5 b illustrates the layout of overvoltage protection the 3rd enforcement example of Tape movement element cross section with perspective view; Fig. 6 a1,6a2,6a3 are respectively plane graph, schematic diagram and the upward views that band overvoltage protection transition condition signal shows overvoltage protection the 4th enforcement exemplary arrangement of (" gun-ho " position); Fig. 6 b1,6b2,6b3 are respectively plane graph, schematic diagram and the upward views that band overvoltage protection transition condition signal shows overvoltage protection the 4th enforcement exemplary arrangement of (" transition condition " position); Fig. 6 c1,6c2,6c3 are respectively plane graph, schematic diagram and the upward views that band overvoltage protection transition condition signal shows overvoltage protection the 4th enforcement exemplary arrangement of (" circuit is not protected " position); Fig. 6 d is that moving-member, twisted wire and retainer one implements the exemplary arrangement cross-sectional view; Fig. 6 e is another enforcement exemplary arrangement cross-sectional view of moving-member, twisted wire and retainer; Fig. 7 a slips into the side cross-sectional view that the formula protection component is implemented example, and this enforcements example has that code device and permission will slip into formula protection component Rotate 180 ° and the device that do not influence its function; Fig. 7 b illustrates a view of observing from the B direction of Fig. 7 A; Fig. 7 c illustrates code device and allows to slip into formula protection component Rotate 180 ° and do not influence the enforcement example details of the device of its function; Fig. 8 is another the alternative example of implementing that has the overvoltage protection of overvoltage transition condition signal Presentation Function; Fig. 9 is another the alternative example of implementing of overvoltage protection that has overvoltage transition condition signal Presentation Function; And Figure 10 shows another alternative example of implementing that band has the overvoltage protection of overvoltage transition condition signal Presentation Function.
The concrete example of implementing
Overvoltage protection comprises fixture 1, and the interchangeable formula protection component 2 that slips into has been installed in this fixture.In a fixture 1, can several formula protection components 2 that slip into placed side by side, for example, slip into formula protection component etc. for one of each phase configuration of three-phase wire.In addition, can also use instrument that several single hole fixtures 1 are connected into a unit as rivet and so on.The support arm 1a and the 1b of fixture 1 have unshowned clamp, are used to connect the electric wire of protected circuit.Shown in the overvoltage protection exemplifying embodiment that has state change remote signal Presentation Function in, fixture 1 bottom also includes the setting element 3 that remote signal shows, this element has the compression spring that is not illustrated.Fixture 1 has and will slip into the mechanism that formula protection component 2 carries out machinery and is electrically connected.For slipping into being electrically connected of formula protection component 2 and fixture 1, fixture 1 is furnished with electric wire and contact, is furnished with contact 5 and 6 and slip into formula protection component 2.
In main body 7 as the formula that the slips into protection component 2 of protection component, connected a nonlinear resistive element at least, in the example rheostat 8, or one group of shunt rheostat.The lead-in wire of the lower electrode 9 of rheostat 8 is connected with an end of twisted wire 10 by the low melt scolder; this connection can increase its rigidity by modification; for example, each line thigh that forms twisted wire is welded etc., the other end of twisted wire 10 then is connected with the contact 5 that slips into formula protection component 2.The lead-in wire of the upper electrode 11 of rheostat 8 is connected with the contact 2 that slips into formula protection component 2 by the mode such as Connection Element 12; Connection Element 12 both can be a retaining element of contact 6, also can be an independent component that is connected to upper electrode 11 lead-in wires and contact 6.
In the main body 7 that slips into formula protection component 2; moving-member is equipped with moving-member 4 in the mode that moves; these parts add by compression spring 15 direct elasticity and are pressed on the twisted wire 10, and the low melt of twisted pair wire 10 connects the generation effect, are leaning on the lead-in wire of the lower electrode 9 of rheostat 8.Shown in the compression spring 15 implemented in the example be installed among the cavity 4a of moving-member 4; leaning on the wall 7a that slips into formula guard block 2 main bodys 7; when compression spring 15 was pressed, moving-member 4 was maintained on its home position by the connection between twisted wire 10 and rheostat 8 lower electrodes 9.At Fig. 6 a in the enforcement example shown in the 6e, on the top of twisted wire 10, its with rheostat 8 lower electrodes 9 between have a temperature to be fit to the join domain be connected, be fixed with retainer 10a.It is lower that this temperature is fit to connect the required temperature of the release temperature more required than the connection of the link between twisted wire 10 and the lower electrode 9 release.In this embodiment, moving-member 4 rests on the retainer 10a (being pushed by spring 15), and main to the connection generation effect between retainer 10a and the twisted wire 10, in this way, when compression spring 15 was pressed, moving-member remained on its home position.By retainer 10a, moving-member 4 also works to being connected between the lead-in wire of lower electrode 9 and the twisted wire 10 in the dark.In the enforcement example shown in Fig. 6 d, the moving-member 4 that is positioned at initial position just in time rests on the corner 10a0 of retainer 10a.In the enforcement example according to Fig. 6 e, moving-member 4 and is leaning on the end portion 10a1 of retainer 10a on the corner 10a0 that rests on retainer 10a on its initial position.According to Fig. 6 a in the enforcement example of 6e, moving-member 4 is furnished with the outer wall 10b that pressure wall 40 is used to drive twisted wire 10, this has improved the driving of moving-member 4 twisted pair wires 10.In addition, can be transformed into the enforcement example of band retainer 10a according to Fig. 1 to the enforcement example of 5b, its purpose and function will be described below.
At Fig. 1 in the enforcement example of 4b, moving-member 4 has the bottom support arm 16a of an insertion between its wall 4b and 4c, this support arm is formed by an end of flat rod 16, and described flat rod is installed in rotation mode on the pin 7b that forms in the main body 7, and this pin is positioned at outside the plane graph surf zone of rheostat 8 or a plurality of rheostat 8.In the enforcement example of Fig. 5 a and 5b, moving-member 4 has gradual change wall 4d rather than wall 4b and 4c, and the bottom support arm 16a of bar 16 is leaning on this wall, and this bar is installed on the pin 7b that forms in the main body 7 with rotation mode.Tension spring 16c makes the bottom support arm 16a of bar 16 keep forever contacting with the gradual change wall 4d of moving-member 4, and this tension spring one end is connected on the main body 7, and the other end then is connected with bar 16.Tension spring 16c is replaced by in unshowned enforcement example to be fit to the compression spring that mode is installed.At Fig. 6 a in the enforcement example of 6c, moving-member 4 has wall 4b and 4c, they have formed the cover of a bending, insert the bottom support arm 16a that forms on flat rod 16 1 ends in the cover, and flat rod is installed in rotation mode on the pin 7b that forms in the main body 7, and this pin is positioned at outside the plane graph zone of rheostat 8 or a plurality of rheostat 8.
The lower part wall 7e and the concentrator marker 13 of main body 7 have ellipticity slot 7d and 13b, and above-mentioned setting element 3 passes these slots, and are leaning on moving-member 4.An end that is positioned at the setting element 3 on the formula that the slips into protection component 2 that inserts fixture 1 is positioned at the home position of moving-member 4; and be resisted against on the moving-member thus; by its position; it passes to the remote signal display to the overvoltage protection state information, and this device is fixed by the independent function element of not shown layout in the fixture 1.In the shift position of moving-member 4 (it will be described below), the setting element 3 terminal main bodys 7 that slip into formula protection component 2 of inserting.Concentrator marker 13 is furnished with the sign protrusion 13a of corresponding hole in fixture of being snapped to 1.
Fig. 7 a illustrates a kind of enforcement example to 7c, and its allows that the formula that slips into protection component 2 Rotate 180s in the fixture 1 ° are not influenced the protection and the signal that slip into formula protection component 2 and shows (long-range and visual) function.Implement in the example at this, the setting element 3 in the fixture is positioned at outside the symmetry axis a of contact 5,6, perhaps be positioned at outside the mid point of distance between the contact 5,6, and it also is positioned at outside the longitudinal axis b that slips into formula protection component 2 simultaneously. Oval slot 7d and 13b and axle a and b oblique.Moving-member 4 has the supporting walls 41 of band gradual change end 41a, in crooked oval slot 7d and each part of 13b, a part 410,411 of moving-member 4 supporting walls 41 is arranged all.On the home position of moving meter 4; in first position of slipping into formula protection component 2; the end of elasticity loading setting element 3 touches the first 410 of moving-member 4 supporting walls 41; and in the position of slipping into formula protection component 2 Rotate 180s °, the end that elasticity loads setting element 3 touches the second portion 411 of moving-member 4 supporting walls 41.On the shift position of moving-member 4; two parts 410,411 of supporting walls 41 all are positioned at outside the track of elasticity loading setting element 3; and can not hinder setting element to insert to slip into crooked oval slot 7d and 13b in the main body 7 of formula protection component 2, thereby the remote signal of carrying out the change of overvoltage protection state shows.In the angular spacing on circle around oval slot 7d, the 13b of arranged crosswise; sign excrescence 13a is installed, this excrescence make two positions slipping into formula protection component 2 (initial position and Rotate 180 ° after position) all with fixture 1 on the interlock mutually of corresponding hole.In unshowned enforcement example, slip into when formula protection component 2 is carried out and in fixture 1, to rotate.
At Fig. 1 in the enforcement example shown in the 3b; from direction perpendicular to nonlinear resistive element (rheostat 8) side; promptly when the direction of body width 7 is checked; under every kind of state of overvoltage protection, all elements and slipping into that are used to cut off the device of nonlinear resistive element and network are used for all elements (visual and long-range) that the overvoltage protection status signal shows and all are positioned at fully outside the space of nonlinear resistance (rheostat 8) contour limit in formula protection component 2 main bodys 7.Deposit at this cloth; can need not to revise under the situation that nonlinear resistive element and network is disconnected the device that is connected and overvoltage protection status signal display; on the Width of main body 7, the nonlinear resistive element in parallel (rheostat 8) of requirement is inserted side by side the formula that slips into protection component 2 main bodys 7 of a single type and size.At employed nonlinear resistive element (rheostat 8) when quantity is less than maximum quantity; the remaining space of main body 7 is idle between nonlinear resistive element (rheostat 8) sidewall and main body 7 sidewalls, and is used to cut off any element of device of nonlinear resistive element and network or overvoltage protection status signal and shows that the element of (visual and long-range) all can not get involved this space.
At Fig. 4 a in the enforcement example shown in the 6c, from direction perpendicular to nonlinear resistive element (rheostat 8) side, promptly when the direction of body width 7 is checked, the pin 7b that bar 16 is installed with rotation mode is positioned at outside the space of nonlinear resistive element (rheostat 8) body profile, and from the direction perpendicular to nonlinear resistive element (rheostat 8) side, promptly when the direction of body width 7 is checked, with the direction of nonlinear resistive element (rheostat 8) parallel sidewalls on, bar 16 forms flat rod, and underarm 16a and signal show that support arm 16b is positioned at outside the space of nonlinear resistive element (rheostat 8) body profile.In addition, the tension spring 16c that uses in the enforcement example of Fig. 5 a and Fig. 5 b is arranged in the surface with nonlinear resistive element (rheostat 8) parallel sidewalls.According to Fig. 4 a in the enforcement example of 6c; size can be installed in the main body 7 that external dimensions is identical and connection mechanism insertion fixture 1 is also identical to the nonlinear resistive element (rheostat 8) of the enforcement example of 3b according to Fig. 1 greater than (and performance also is better than); the main body 7 that this main body and Fig. 1 implement in the example in the 3b is consistent; like this, two kinds of " type " overvoltage protections in the main body 7 of same external dimensions all can use unified fixture 1.
Work in the following manner to the overvoltage protection in the enforcement example of 7c according to Fig. 1.
When overvoltage occurring in protected circuit, overvoltage protection is fulfiled its function, and soon the overvoltage in the protected circuit is reduced to the value of permission.Yet (the aging and overload of nonlinear resistive element (rheostat 8, one group of rheostat etc.), the attribute of protection component be because electric current flows through protection component (rheostat 8) gradually, makes protection component (rheostat 8) heat up and changing because protection component.The heat energy of protection component (rheostat 8) flows to lead-in wire 9 and 11 naturally.The lead-in wire of rheostat 8 lower electrodes 9 also heats up gradually.
According to Fig. 1 in the enforcement example of 5b, the 9 enough intensifications of rheostat 8 lower electrodes can make the solder fusing that connects lead-in wire and twisted wire 10.Owing to this reason, connection loses rigidity, and moving-member 4 begins the end of twisted wire 10 is promoted to contact 5 under the effect of compression spring 15.This makes lead-in wire and the twisted wire 10 of lower electrode 9 of rheostat 8 disconnect to be connected, thereby protection component (rheostat 8) is connected with the network disconnection.According to Fig. 1 in the enforcement example of 3b, moving-member 4 does not influence the position of bar 16 moving of starting stage.Yet; the wall of moving-member 4b is support bar 16 no longer in the position of not covering; and along with moving-member 4 being moved further on the support arm 16a of the bottom of bar 16; the wall 4c of moving-member 4 begins to work; and the bar 16 on its rotating dog 7b; and the signal of bar 16 shows that support arm 16b covers optical signal and shows narrow groove 7c, and this visual state signal that has changed overvoltage protection shows.In enforcement example according to Fig. 4 a and 4b; by moving to moving-member 4; bar 16 is owing to moving of the terminal 16a in flex housing middle and lower part between moving-member 4 wall 4b and the 4c rotated; and the signal of bar 16 shows that support arm 16b covers optical signal and shows narrow groove 7c, and the optical signal that changes overvoltage protection thus shows.In the enforcement example according to Fig. 5 a and 5b, the gradual change wall 4d that moves owing to moving-member 4 of moving-member 4 makes bar 16 rotations, and the lower end 16a of bar 16 keeps in touch with the gradual change wall under the effect of spring 16c.Like this, the signal of bar 16 shows that support arm 16a has covered optical signal and shown narrow groove 7c, and this makes the visual state signal of overvoltage protection show and changes.All these implement moving-member 4 in examples also by its unshowned compression spring effect be setting element 3 before declined out the space, and setting element 3 pushes ahead, the not shown remote signal that obtains the change of overvoltage protection state thus shows.Subsequently, the participant can be easily long-range or when checking overvoltage protection in person, recognize and must replace the given formula that slips into guard block 2.
According to Fig. 6 a in the enforcement example of 6e, the enough intensification meetings fusings earlier of rheostat 8 lower electrodes 9 connect the scolder of twisted wire 10 and retainer 10a.Connection between twisted wire 10 and the retainer 10a loses rigidity like this; and moving-member 4 begins retainer 10a is shifted to contact 5 under the effect of compression spring 15; stopped by twisted wire 10 until it; and twisted wire is connected with lower electrode 9 lead-in wires of rheostat 8 all the time; simultaneously, protection component (rheostat 8) then is connected to network all the time.The moving-member 4 this limited lower end 16a that move bar 16 work; and bar 16 also is rotated in place in limited mode; signal support arm 16b at this position bar 16 adjusts coloured surface at the narrow groove 7c of optical signal; send overvoltage protection " transition condition " (promptly; at nonlinear resistive element (rheostat 8) owing to various influences heat up, the state when still carrying out its function) signal.When in this " transition condition ", owing to disconnect the moment that is connected near overvoltage protection fully with protected circuit, therefore, for the purpose of prevention, the suggestion replacement slips into formula element 2.Simultaneously; changing appears in the setting element 3 that the limited mobile meeting of this of moving-member 4 shows remote signal; the long-range subsequently signal that sends malfunction " circuit is not protected " of this element has still ensured thus and in time replaced the possibility that slips into formula protection component 2 before overvoltage protection complete failure.Persistently overheating along with rheostat 8 lower electrodes 9 lead-in wire, connect lower electrode 9 lead-in wires of rheostat 8 and the solder fusing of twisted wire 10, thereby this is connected also lose rigidity, moving-member 4 moves the end and the retainer 10a of twisted wire 10 to contact 5 under the effect of compression spring 15, lower electrode 9 lead-in wires of rheostat 8 disconnect with twisted wire 10 and being connected thus, are connected thereby nonlinear resistive element (rheostat 8) is disconnected with network.This of moving-member 4 is moved further bar 16 is rotated once more, and its signal shows that support arm 16b navigates to optical signal and shows narrow groove 7c, and its coloured surface is sent the signal of " circuit is not protected " state.
In the enforcement example according to Fig. 8, overvoltage protection has with Fig. 1 implements the different inside deployment of example in 7c.Herein, independent cut-out parts comprise the spring 18 that "T"-shaped bar 180 is worked, and "T"-shaped bar works by 1801 pairs of conduction of one support arm Connection Element 181.Connection Element 181 ends 1810 are connected with adapter 184 by the lower scolder 185 of fusion temperature, and adapter is connected with the electrode 182 of nonlinear resistive element (rheostat) by the higher scolder 183 of fusion temperature again.The adapter 184 electric modes that go up with conduction are connected with overvoltage protection contact 186, and are connected to Connection Element 181 simultaneously, are assigned the retainer 187 that a restriction Connection Element 181 moves herein.Intensification by electrode 182; has more scolder 185 fusing earlier of low melting temperature; subsequently under the effect of spring 18; bar 180 rotation and Connection Element 181 move to the position relative with retainer 187; the signal display end 1802 of bar 180 moves and sends the signal that overvoltage protection partly damages thus; for example, it is adjusted to a yellow area in the signal display window.Overvoltage protection all the time in action.Further intensification along with electrode 182; having more, the scolder 183 of high melting temperature is melted; this makes bar 180 rotate once more under the effect of spring 18; Connection Element 181, adapter 184 and retainer 187 are shifted from the position of electrode 182; electrode 182 disconnects with contact 186 and being connected thus; and the signal display end 1802 of bar 180 is moved further and indicates overvoltage protection to damage fully, and for example, it is adjusted to a red area in the signal display window.Like this, overvoltage protection disconnects with protected circuit and being connected.
In enforcement example shown in Figure 9, overvoltage protection comprises the spring 19 that conduction Connection Element 190 is forever exerted pressure, and by this Connection Element, the electrode 191 of nonlinear resistive element (rheostat) is connected with twisted wire 192 in the mode of conducting electricity on electric.The scolder 193 of high melting temperature is connected with electrode 191 by having more in the mode of conduction on electric to connect 194.And connect 194 on electric with the mode of the conduction scolder 195 by having low melting temperature more with conduct Connection Element 190 and be connected.Connect 194 and distributed the retainer 196 that conducts Connection Element 190.The intensification of electrode 191 is at first melted and is had the more scolder 195 of low melting temperature, conducts Connection Element 190 thus and has moved the distance of Δ at the retainer 196 in connection 194 under the effect of spring 19.By moving of conduction Connection Element 190, formed the signal that relevant overvoltage protection partly damages, for example, the yellow area on the conduction Connection Element 190 is adjusted in the optical signal window displayed.By further intensification; having more, the scolder 193 of high melting temperature is melted; being thus connected 194 is discharged fully; conduction Connection Element 190 is shifted from contact 191 under the effect of spring 19; overvoltage protection disconnects with protected circuit and being connected thus; and formed the signal that relevant overvoltage protection damages fully, for example, the red area on the conduction Connection Element 190 is adjusted in the optical signal display window.
In enforcement example shown in Figure 10, overvoltage protection comprises spring 20, and spring is constantly had an effect to bar 21 owing to tension force, and bar is then had an effect to the conductive plate 22 that passes a hole on nonlinear resistive element (rheostat) electrode 23.Under the complete initial condition when intact of overvoltage protection, conductive plate 22 is connected to the electrode 23 of nonlinear resistive element (rheostat) by having the scolder 24 of low melting temperature more.Conductive plate 22 ends behind electrode 23, conductive plate 22 is furnished with the retainer that can discharge under the heat effect, for example, on conductive plate, be coated with last layer, or it is spherical, or other suitable shapes, have the more scolder 25 of high melting temperature, under the not molten state of scolder 25, can prevent conductive plate 22 slippage from the hole of electrode 23 like this.Since the intensification of varistor electrodes 23, scolder 24 fusing earlier, and under the effect of spring 20, bar 21 rotations pull to electrode 23 by scolder 25 with conductive plate 22.By moving of bar 21, form the signal that relevant overvoltage protection partly damages, for example, the yellow area on the information support arm 210 of bar 21 is adjusted in the optical signal display window, and may be formed for the signal that remote signal shows.Because heating up again of electrode 23; having more, the scolder 25 of high melting temperature is melted; conductive plate discharges from electrode 23; bar 21 is further rotated under the effect of spring 20; thereby form the signal that overvoltage protection damages fully; for example, the red area on the bar 21 information support arms 210 is adjusted to the optical signal display window, and may be formed for the signal that remote signal shows.
Above-mentioned various layout declarative descriptions cardinal principle of the present invention; this principle is embodied in: overvoltage protection partly reaches the gradual of each step of the signal demonstration that damages fully subsequently and is carried out by single cut-out parts, and the signal of realizing that overvoltage protection partly damages and damaging fully subsequently by moving of cut-out parts shows.
The present invention is not limited in the enforcement example of clearly describing or directly illustrating; also be included in the modification of within the pure professional technique scope of present technique field normal expert this principle being carried out; that is, by being that the classification of the single cut-out parts of foundation is shifted and forms overvoltage protection and partly reach the progressively signal that damages fully and show with single or multiple rheostat temperature.The present invention also is not limited to the second signal of part when damaging or damaging fully and shows.
Applicability
The present invention can be used for holding circuit to prevent overvoltage.
List of reference numerals
1 fixture
2 slip into the formula protection component
3 setting elements
4 moving-members
Cavity in the 4a moving-member
The wall of 4b moving-member
The wall of 4c moving-member
The wall of 4d moving-member
The pressure wall of 40 moving-members
41 supporting walls
The first of 410 supporting walls
The second portion of 411 supporting walls
The gradual change end of 41a supporting walls
5 slip into the contact of formula protection component
6 slip into the contact of formula protection component
7 slip into the main body of formula protection component
7a slips into the wall of formula protection component main body
The 7b pin
The 7c optical signal shows narrow groove
The oval slot of 7d
The lower part wall of 7e main body
8 rheostats
The lead-in wire of 9 rheostat lower electrodes
10 twisted wires
The 10a retainer
The 10a0 retainer becomes the angular position
10a1 retainer end portion
10b twisted wire face wall
11 upper electrodes lead-in wire
12 Connection Elements
13 slip into the concentrator marker of formula protection component
13a identifies excrescence
Vertical hole of 13b setting element
Concentrator marker on 14 fixtures
Vertical hole of concentrator marker on the 14a fixture
15 springs
16 bars
The bottom support arm of 16a bar
The signal of 16b bar shows support arm
The 16c tension spring
17 inserts
18 springs
180 "T"-shaped bars
1801 "T"-shaped bar ends
1802 "T"-shaped bar signals show terminal
181 conduction Connection Elements
The end of 1810 conduction Connection Elements
182 nonlinear resistive element electrodes
183 have the more scolder of high melting temperature
184 adapters
185 have the more scolder of low melting temperature
186 overvoltage protection contacts
The retainer that 187 restriction Connection Elements move
19 springs
190 conduction Connection Elements
191 nonlinear resistive element electrodes
192 twisted wires
193 have the more scolder of high melting temperature
194 connect
195 have the more scolder of low melting temperature
196 retainers
20 springs
21 bars
The information support arm of 210 bars
22 conductive plates
23 nonlinear resistive element electrodes
24 have the more scolder of low melting temperature
25 have the more scolder of high melting temperature
A slips into the symmetry axis of formula protection component contact
B slips into the longitudinal axis of formula protection component
Δ conduction Connection Element 190 under the effect of spring 19 to connecting on 194
The distance that retainer 196 moves
Claims (6)
1. one kind has the overvoltage protection that status signal shows; it comprises at least one nonlinear resistive element; described nonlinear resistive element has the shearing device that is connected with overvoltage protection status signal display; it is characterized in that; described overvoltage protection comprises single shearing device; this shearing device is provided with the mechanism that is used for the displacement of two-stage at least of actuator according to the nonlinear resistive element temperature, and described actuator is connected with the classification shift signal display of described actuator.
2. overvoltage protection as claimed in claim 1, it is characterized in that, actuator is formed by moving-member (4), described moving-member is in mobile mode and under thrust, and this thrust connects the generation effect to being installed in the electrode (9) and the low melt between the twisted wire (10) that slip into the described nonlinear resistive element in formula protection component (2) main body (7); This moving-member has a surface that acts on optical signal display pole (16) at least, and have at least one to act on the surface that is positioned at the last remote signal demonstration setting element of fixture (1) (3), and an end of described moving-member (4) is distributed to described twisted wire (10), at this end, connecting the lower low melt of release temperature by release temperature than the low melt between twisted wire (10) and the nonlinear resistive element electrode (9) connects, and be connected with retainer (10a), rely on this retainer, described moving-member (4) leans against on the position and the space between the twisted wire (10) of this moving-member twisted pair wire (10) generation effect after the low melt on the described retainer of release (10a) connects.
3. overvoltage protection as claimed in claim 1, it is characterized in that, described actuator is formed by the "T"-shaped bar that is connected with spring (180), and a support arm (1801) of described "T"-shaped bar (180) is to described conduction Connection Element (181) generation effect; One end (1810) of described conduction Connection Element is by having more the scolder of low melting temperature (185) and link to each other with adapter (184); And described adapter is by having more the scolder of high melting temperature (183) and link to each other with the electrode (182) of nonlinear resistive element; simultaneously; described adapter (184) is connected with overvoltage protection contact (186) in the mode of conducting electricity on electric, and the mobile retainer (187) of described Connection Element (181) is distributed to described Connection Element (182).
4. overvoltage protection as claimed in claim 1; it is characterized in that; described actuator is formed by the conduction Connection Element (190) that is connected with spring (19); and described Connection Element (190) is connected on the twisted wire (192) of the electrode (191) of nonlinear resistive element and overvoltage protection contact in the mode of conduction on electric; and electrode (191) on electric in the mode of conduction by having more the scolder of high melting temperature (193) and to be connected (194) continuous; the scolder of low melting temperature (195) links to each other with conduction Connection Element (190) by having more again in this connection (194), and the retainer (196) of conduction Connection Element (190) is arranged in the described connection (194).
5. overvoltage protection as claimed in claim 1; it is characterized in that; described actuator is by forming with bar (21) that spring (20) is connected with conductive plate (22); this conductive plate passes a hole on the nonlinear resistive element electrode (23); and described conductive plate (22) is in initial condition; complete when intact at described overvoltage protection; the scolder of low melting temperature (24) is connected on the electrode (23) of nonlinear resistive element by having more; end in described electrode (23) back in this conductive plate (22); described conductive plate (22) is furnished with retainer, and this retainer can be released under than the higher release temperature of fusing described scolder (24) temperature in the effect by heat.
6. overvoltage protection as claimed in claim 5 is characterized in that, can be formed than the required higher scolder (25) of temperature of fusing described scolder (24) by fusion temperature by the described retainer of heat release.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZ2005-498A CZ304697B6 (en) | 2005-08-05 | 2005-08-05 | Overvoltage protection |
| CZPV2005-498 | 2005-08-05 | ||
| CZPV2005498 | 2005-08-05 | ||
| CZPV2006-276 | 2006-04-28 | ||
| CZ20060276A CZ2006276A3 (en) | 2006-04-28 | 2006-04-28 | Overvoltage protection with status signaling |
| CZPV2006276 | 2006-04-28 | ||
| PCT/IB2006/002154 WO2007017736A1 (en) | 2005-08-05 | 2006-07-24 | Overvoltage protection with status signalling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101199029A true CN101199029A (en) | 2008-06-11 |
| CN101199029B CN101199029B (en) | 2011-03-30 |
Family
ID=37807788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680021791XA Expired - Fee Related CN101199029B (en) | 2005-08-05 | 2006-07-24 | Overvoltage protection device with status signaling display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101199029B (en) |
| CZ (1) | CZ304697B6 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104995696A (en) * | 2013-02-08 | 2015-10-21 | 德恩及索恩两合股份有限公司 | Overvoltage protection device with thermal disconnection |
| CN106415769A (en) * | 2014-06-04 | 2017-02-15 | 德恩及索恩两合股份有限公司 | Device for thermally triggering or thermally disconnecting an overvoltage protection device |
| CN107919727A (en) * | 2016-10-11 | 2018-04-17 | 菲尼克斯电气公司 | A kind of Group communication devices |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ304868B6 (en) * | 2011-04-01 | 2014-12-17 | Saltek S.R.O. | Surge voltage protector with exchangeable overvoltage protection module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4000717C2 (en) * | 1990-01-12 | 1994-12-01 | Kleinhuis Hermann Gmbh | Surge arresters |
| DE9305796U1 (en) * | 1993-04-17 | 1993-06-17 | Dehn + Soehne Gmbh + Co Kg, 8500 Nuernberg, De | |
| CN2209383Y (en) * | 1994-11-24 | 1995-10-04 | 西安无线电二厂 | Indication alarm type surge absorber |
| AT406207B (en) * | 1997-09-30 | 2000-03-27 | Felten & Guilleaume Ag Oester | PLUG-IN SURGE PROTECTOR |
| FR2783365B1 (en) * | 1998-09-15 | 2000-12-01 | Soule Materiel Electr | DEVICE FOR PROTECTING ELECTRICAL INSTALLATIONS AGAINST INTERFERENCE WITH THE POWER SUPPLY |
-
2005
- 2005-08-05 CZ CZ2005-498A patent/CZ304697B6/en unknown
-
2006
- 2006-07-24 CN CN200680021791XA patent/CN101199029B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104995696A (en) * | 2013-02-08 | 2015-10-21 | 德恩及索恩两合股份有限公司 | Overvoltage protection device with thermal disconnection |
| CN104995696B (en) * | 2013-02-08 | 2018-02-02 | 德恩及索恩两合股份有限公司 | Overvoltage protection device with thermal disconnection |
| CN106415769A (en) * | 2014-06-04 | 2017-02-15 | 德恩及索恩两合股份有限公司 | Device for thermally triggering or thermally disconnecting an overvoltage protection device |
| CN106415769B (en) * | 2014-06-04 | 2019-06-21 | 德恩及索恩两合股份有限公司 | Device for thermally triggering or thermally disconnecting an overvoltage protection device |
| CN107919727A (en) * | 2016-10-11 | 2018-04-17 | 菲尼克斯电气公司 | A kind of Group communication devices |
| CN107919727B (en) * | 2016-10-11 | 2021-05-25 | 菲尼克斯电气公司 | Cluster communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ304697B6 (en) | 2014-09-03 |
| CN101199029B (en) | 2011-03-30 |
| CZ2005498A3 (en) | 2007-03-07 |
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