CN101711417B - Overvoltage protection device with mechanical disconnection means which can be activated in the event of a thermal overload - Google Patents

Overvoltage protection device with mechanical disconnection means which can be activated in the event of a thermal overload Download PDF

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Publication number
CN101711417B
CN101711417B CN2008800198975A CN200880019897A CN101711417B CN 101711417 B CN101711417 B CN 101711417B CN 2008800198975 A CN2008800198975 A CN 2008800198975A CN 200880019897 A CN200880019897 A CN 200880019897A CN 101711417 B CN101711417 B CN 101711417B
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CN
China
Prior art keywords
safety device
over
sliding part
pressure safety
shelf
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Expired - Fee Related
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CN2008800198975A
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Chinese (zh)
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CN101711417A (en
Inventor
E·策纳
G·维特曼
S·路德维希
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Dence
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Dehn and Soehne GmbH and Co KG
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12Overvoltage protection resistors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/02Details
    • H01H37/08Indicators; Distinguishing marks
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00Details of spark gaps
    • H01T1/12Means structurally associated with spark gap for recording operation thereof
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00Details of spark gaps
    • H01T1/14Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00Overvoltage arresters using spark gaps
    • H01T4/06Mounting arrangements for a plurality of overvoltage arresters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • H01H2037/762Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • H01H2037/762Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts
    • H01H2037/763Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts the spring being a blade spring

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Fuses (AREA)
  • Protection Of Static Devices (AREA)

Abstract

The invention relates to an overvoltage protection device comprising a mechanical disconnection device which is activated in the event of a thermal overload, said disconnection device comprising connection elements which can be moved from a closed position into a current-interrupting or potential-disconnecting position by means of a spring-loaded or pretensioned slider (4), and wherein the closed position of the connection elements is fixed by means of solder or a thermally detachable adhesive. According to the invention, each connecting element comprises a pair of branched metal brackets (1, 1'), the ends of which pointing towards the overvoltage protection unit extend in parallel and receive a corresponding contact lug (14) of the overvoltage protection unit at the midpoint thereof. The ends of the brackets (1, 1') facing away from the overvoltage protection unit are connected to one another in a free space and have sections (12) for external connecting elements or terminals. A sliding element (4) with a pretensioning spring (2) is inserted into the free space, wherein the pretensioning force of the spring is oriented in the direction of the contact plate of the overvoltage protection unit. Furthermore, the slide (4) has a wedge shape and/or the segments of the bracket have an inclined surface in order to generate a force component acting on the parallel-extending ends of the bracket when the slide is moved, so that the ends can be moved away from the contact plate. A welded or bonded connection is formed in the region of the parallel-running ends of the brackets and the contact lugs.

Description

Over-pressure safety device with the mechanical type separator that under the thermal overload situation, starts
Technical field
The present invention relates to a kind of over-pressure safety device with the mechanical separation device that under the thermal overload situation, starts; This separator comprises a plurality of Connection Elements; Each said Connection Element can move to the position of current interruptions or current potential separation through spring force sliding part that load or pretension from the position of closure, and wherein the position of the closure of Connection Element is fixed by the binding agent of scolder or ability thermal release (melting).
Background technology
For a long time, the over-pressure safety device of separator that has heat just belongs to known systems.The task of separator is at over-pressure safety device, when unallowed intensification appears in for example variable resistor/piezo-resistance (Varistor), before discharger breaks down, it to be separated with electrical network.
By EP 0987803B1 or EP 0905839B1 known separation devices, said separator is designed to solid sliding part.Corresponding sliding part is in the effect of initial tension of spring and descends and protect respectively a variable resistor not receive unallowed heat heating.The make position of each corresponding link position is fixed by scolder.Said scolder receives the initial tension of spring effect that continues of transmitting through sliding part, and this constitutes an important shortcoming.According to the difference of power, that is,, need a plurality of separators, the shortcoming on the cost of this formation according to the difference of the impulse current ability to bear of hope.Verified in addition, the motion excursion along with sliding part can drive the scolder granule and form solder line (Lotfaden) in separation process in the prior art solutions of being quoted, and this causes inadequate electricity to separate.
By the known a kind of over-pressure safety device of utility model DE 29519313U1, wherein separator is positioned apart with actual variable resistor through a partition wall with separator of hot type.The separator here only has little impulse current ability to bear.The welding position also receives the effect of lasting initial tension of spring in this prior art.
In interconnection structure according to a plurality of separators of EP 0716493, for each set variable resistor an independent separator must be provided, wherein even proof, each protection path all needs a plurality of separators.
Summary of the invention
Therefore; Set out by content noted earlier; The objective of the invention is; A kind of improved over-pressure safety device with the mechanical type separator that under the thermal overload situation, starts is provided, wherein being welded to connect the position and should not bearing the load aspect the mechanical force all the time of under the situation of separating, the opening of Connection Element (disconnection) particularly.Another object of the present invention is, the Connection Element of separator is designed to, and make and realize high impulse current ability to bear, and target is, produces the class contact pressure of be used for discharging (Ableitvorgang) through impulse current itself.
For the cost of over-pressure safety device is kept within limits, should only use in electricity, heat according to the present invention or the material of special high request is mechanically arranged at selected position.
Over-pressure safety device according to the present invention is realized the object of the invention, and is described below suitable form of implementation and improvement project.
By over-pressure safety device of the present invention; Be included in the mechanical separator that starts under the thermal overload situation; Said separator comprises Connection Element; Each said Connection Element can move to the position of current interruptions or current potential separation through spring force sliding part that load or pretension from the position of closure, and wherein the position of the said closure of each Connection Element is fixed by the binding agent of scolder or ability thermal release, it is characterized in that; Each said Connection Element comprises the metal shelf of a pair of shunting; The corresponding contact chip that each end parts parallel towards the Overvoltage protecting unit sensing is extended and the some place holds Overvoltage protecting unit therein of said shelf, each end of the Overvoltage protecting unit dorsad of each said shelf interconnect with surrounding a free space and have and be used for the outside link or the section of terminals, and in said free space, packing into has the sliding part of preloading spring; Wherein initial tension of spring is directed towards the direction of the contact chip of Overvoltage protecting unit; In addition, the section that sliding part has wedge-type shape and/or shelf has the inclined-plane, so that when sliding part moves, produce the force component on the end that extends in parallel that acts on shelf; Thereby can move and leave said contact chip in each said end, and formation is welded to connect or bonds and is connected in the zone end that extends in parallel of shelf and contact chip.
Therefore; Separation device according to the present invention structurally is designed to; The Overvoltage protecting unit, the particularly variable-resistance input part that are used for deboost formed along the conductor segment that identical direction flows through by impacting circuit by two, and said conductor segment extends in parallel in end regions and common is fixedly coupled the mutual transition in position by scolder one.
Because parallel electric current and relevant therewith power effect attract each other in the correspondent section that impulse current situation lower conductor or shelf occur, and realize being welded to connect the raising of the hope of the contact force on the position constantly at this.
Can the welding position be designed to only to be used for fixing separately said section of shelf thus.This makes that it is responsive especially can the mechanical dimension of welding position being restricted to absolute minimum value and thus it being designed to heat.In other words, the welding position only has especially little thermal capacity.The contact pressure that discharge process is necessary produces through impulse current itself according to instruction of the present invention.
The Connection Element of being made up of the metal shelf of a pair of shunting can be made up of the lower material of mechanical strength.Through being divided into said two parallel connections/parallel current circuit, can less expensive ground confirm the size of conductor segment, because current density is halved.
The task of the spring of separator is; Under the situation of welding position fusing; Sliding part is moved between the said current circuit and interruptive current loop thus, said spring can be designed with less spring force, thereby realizes the low sustained load in welding position.
Each shelf section or the particularly advantageous symmetrical configuration of whole shelf make it possible to achieve through shelf sliding part location and guiding placed in the middle and that do not stress thus.The sliding part for example configuration of wedge shape directly helps separation process.Because sliding part directly moves into the welding position under the situation of separating, can be suppressed at the unfavorable effect in the separation process effectively, the solder line that for example exists in the prior art, and can realize reliable, no-voltage separation.
According to prior art, in having variable-resistance over-pressure safety device, said variable resistor is arranged in the shell.Here the variable resistor unit is through cast or powder coated and other parts electric insulation.Each variable resistor is packed in the shell as prefabricated construction package with separately Connection Element.In this flexible program of prior art, the part of variable-resistance electricity and mechanical property, for example the overload characteristic when breaking down is born through specially designed sheathing material.In other words, can not be simply the material of economy be used for shell according to prior art, but must selects high temperature resistant and incombustible material.
For fear of this shortcoming, the suggestion according to the present invention, each over-pressure safety device, particularly variable resistor encapsulate dividually, that is and, each said over-pressure safety device is packed in the encapsulating housing.Here have only the material of encapsulating housing to select according to said special requirement.
Connection Element is made up of the metal shelf of a pair of shunting according to the present invention, and the end parts parallel ground that said shelf points to Overvoltage protecting unit, for example variable resistor/piezo-resistance extends the contact chip separately (Kontaktfahne) that also holds Overvoltage protecting unit therein.
The end that deviates from Overvoltage protecting unit of shelf surrounds a free space and interconnects.The said end of shelf have in addition one be used for external connecting part or terminals section.
The said sliding part with preloading spring of in said free space, packing into, wherein initial tension of spring is directed along the direction of the contact chip of Overvoltage protecting unit.In addition, the section that sliding part is designed with wedge-type shape and/or shelf respectively has an inclined-plane, so that when sliding part moves, produce the force component on the end that extends in parallel that acts on shelf, leaves contact chip so that can move in said end.In the zone of end that shelf extends in parallel and contact chip, form said at least one welding or the connecting portion that bonds.
Sliding part has a flat basically surface portion in a form of implementation of the present invention, so that the slide positions accordingly of expression (use signal indication on the optics) visually, and specifically be with respect to the slide positions that is arranged on the window in the shell.
Below the said surface portion of sliding part movably, be provided with the other face that can expose by sliding part, be used for visually representing (using signal indication on the optics) released state.The said surface portion of sliding part and said other face are preferably designed to various colors.
One is used for holding an end of preloading spring or the cavity of a section longitudinally is positioned at movable sliding part.In addition, in the bottom of sliding part, process a gathering sill, so that in the motion that will implement, prevent inclination.
The fixed position is carried out through scolder or binding agent in the end that shelf extends in parallel.But in separation process, push open through the internal stress of the machinery that can set each other said end, and this helps separation process.
Under the situation of separating, sliding part moves into welding or the join domain and pass said zone of boning, and preventing particularly solder line, thereby realizes separating completely and reliably.
Sliding part itself by electric insulation, particularly plastic material is formed.
As stated, said at least one Overvoltage protecting unit is arranged in the encapsulating housing, and said encapsulating housing has the opening that is used for the electric contact connection, and wherein sliding part is arranged on this encapsulating housing.Encapsulating housing can have a track here, and this track is rabbeted in the gathering sill of sliding part bottom.
Being used to of shelf connects outside terminals or other link said section and is fixed on the encapsulating housing or is bearing in here.
A plurality of Overvoltage protecting units, particularly variable resistor dish can be arranged in the encapsulating housing parallelly connectedly.
The encapsulating housing of a plurality of this shelves that have the Overvoltage protecting unit that is arranged on wherein and be provided with respectively and sliding part can gather indicator elment by the position that is parallel to each other and and be in and be connected, and indicates possible released state so that concern by " or (ODER) " of logic.
The section that is used for outside link or outside terminals particularly is designed for the screw contacting that can realize economically, and has corresponding bent angle and have one or more holes in case of necessity.
Lay respectively at Overvoltage protecting unit in the encapsulating housing and pack in the serial line interface housing (Reihen-
Figure GSB00000499995700051
), said housing can be processed by the plastic material of cheapness.
Also there is such possibility in additional ground, that is, the inside of serial line interface housing is provided with at least one gas discharge protector (Gasentladungsableiter) by the corresponding electrical wiring form with respect to other Overvoltage protecting unit.
Description of drawings
Below according to an embodiment and by means of the present invention being elaborated with each accompanying drawing.
Here:
Fig. 1 illustrate one be arranged in the variable resistor dish of encapsulating housing decomposition view, wherein this construction package is packed in the serial line interface shell, and is additionally provided with the gas discharge protector by 1+1 type of attachment (circuit);
Fig. 2 illustrates and decomposition view like the view of Fig. 1, but has three gas discharge protectors that lay respectively at the variable resistor dish in the encapsulating housing and have other setting altogether, and they also all are arranged in the serial line interface shell;
Fig. 3 illustrates the thin portion view of the variable resistor unit of encapsulation, wherein has appreciable separator;
Fig. 4 illustrates another thin portion view of the variable resistor unit that is arranged in encapsulating housing, and wherein, separator is in the state that does not trigger;
Fig. 5 illustrates the view that is similar to according to the view of Fig. 4, but is in the state of triggering;
Fig. 6 illustrates the view of encapsulating housing from following observation, and this encapsulating housing has the visible brace and the link of variable resistor dish, and said link has the opening of a slit-shaped, is used to hold the brace that is used to weld purpose;
Fig. 7 illustrates the view that is similar to according to the view of Fig. 6, but has two at the inner variable resistor dish of encapsulating housing;
Fig. 8 illustrates the view that is similar to according to the view of Fig. 7, but has had linkage unit and terminals and mounted gas discharge protector;
Fig. 9 illustrates a plurality of multipole arrangement forms that are arranged in the overvoltage arrester of encapsulating housing, and said overvoltage arrester has the busbar as the state indication;
Figure 10 illustrates a plurality of many pin arrangement forms that are arranged in the overvoltage arrester of encapsulating housing, and said overvoltage arrester has as the busbar of state indication and the visible housing parts that has observation window, and said observation window makes to observe and gathers indicator elment;
Figure 11 a and 11b illustrate the view that is similar to according to the view of Figure 10, but have the discharger position correspondingly mobile with gathering indicator elment of left side separation in the drawings;
Figure 12 a and 12b illustrate the view that is similar to according to the view of Figure 11 a and 11b, but have overvoltage arrester setting placed in the middle, that be in released state;
Figure 13 a and 13b illustrate the view that is similar to according to the view of Figure 11 a to 12b, wherein are arranged on the state that the discharger in upper right side among the figure is in separation; And
Figure 14 a and 14b illustrate the view that is similar to according to the view of Figure 11 a to 13b, and wherein all dischargers all are in the state of separation.
Embodiment
In the view according to Fig. 1 and 2, serial line interface shell 11 holds and has the variable resistor dish that is positioned at wherein 7,7 ' encapsulating housing 6.Separation device according to the present invention is positioned on the upside of encapsulating housing 6, and this separator has a sliding part 4 as resolution element.A pair of shelf 1,1 ' constitutes the sheet metal bending part of metal, and wherein each shelf has substantially parallel distribution trend in the end on right side in the drawings.Each shelf also surrounds a free space in addition, is used under installment state, holding sliding part 4.
Shelf 1,1 ' carry out the transition to one be used for the other element of contacting 13 the section 12, wherein the connection between the parts 12 and 13 for example can realize through being threaded.
For 1+1 type of attachment,, and this gas discharger packed in the serial line interface shell 11 also through corresponding electric device contacting gas discharger 8 according to Fig. 1.
Fig. 2 comprise one altogether three lay respectively at a variable resistor group 7,7 ' 3+1 type of attachment in the encapsulating housing 6; According to Fig. 2; Exist one to gather indicator elment 5; This gather indicator elment and each sliding part 4 by " or " relation interacts, promptly can correspondingly operate, thereby can correspondingly discern variable resistor group 7,7 ' fault.
Fig. 3 illustrates the state of the part of pre-installing separator of encapsulating housing 6, comprises the contacting element 13 through 10 connections that are threaded.
Variable resistor 7 is pushed in the encapsulating housing 6 of opening below, wherein the contact chip 14 of variable resistor 7 occupies its space between two shelf ends.Welding position 3 this moment fixes contact chip 14 and shelf 1,1 ' parallel end.
Vertical view according to Fig. 4 also can be seen sliding part 4, and this sliding part has a surface portion 15, and this surface portion other face portion 16 below being positioned at it on color is different.Under the state that does not have to trigger according to the view of pressing Fig. 4, surface portion 15 is positioned at the face portion 16 under it near covering fully.
In the trigger position according to Fig. 5, sliding part 4 is in the drawings to upper right side motion, thereby saidly other for example exposes and represent malfunction for red face portion 16.
Snap the part (see figure 3) that sliding part 4 is placed the sliding motion of hope and passes the portion of being welded to connect 3 when connecing in succession through spring 2 and the spring force that freely discharges beating (breaking).Machined at sliding part 4 goes out a cavity 17, and this cavity holds a spring section.
Fig. 6 and 7 illustrates and have the variable resistor (Fig. 6) of packing into or with the downside of the encapsulating housing 6 under variable resistor 7,7 ' the complete occupied state of two parallel connections, said two variable resistors link to each other with cross structure 18 through welding in zone 9.
Cross structure 18 according to the view of Fig. 8 also be used for contacting and mechanically fixed gas discharge prevention device 8 with hold the screw thread terminals parts 19 that are used for corresponding connecting line.
Fig. 9 according to many pin arrangement form of the variable resistor unit that the encapsulation with positioning indicator is shown; Gathering indicator elment 5 with one is designed to; Making this gather indicator elment can be controlled by each sliding part individually, and specifically is to control according to the mode of logical "or" relation.
Specify the effect that gathers indicator elment that has positioning indicator by means of Figure 10 to 14.
In Figure 10,11a, 12a, 13a and 14a, illustrate respectively one have an observation window 21 housing parts 20.
Through observation window 21, can see the position of gathering indicator elment 5 that is positioned at observation window 21 belows.In position according to the accompanying drawing of Figure 10, for example can see green in the observation window 21, green corresponding to the sign that gathers the corresponding colour on the indicator elment 5.
If for example carry out in the overvoltage arrester in separation process left side below according to Figure 11 a; Then gathering indicator elment 5 moves along the direction of arrow; Promptly gather the part of dying green or being provided with viridine green of indicator elment 5 and leave observation window 21; And expose the color that is positioned at its below, and preferably red, so that the expression malfunction.
Is saving under the illustrated situation of housing parts 20 respectively shown in Figure 11 b, 12b, 13b and the 14b position of gathering indicator elment 5 of moving relatively therewith.
Gathering the movable property of indicator elment has guaranteed; Under separation case; Even during the separation process of the overvoltage arrester in the middle of having accomplished (Figure 12 b) or in the drawings during the separation process of the overvoltage arrester shown in the upper right side or when all overvoltage arresters according to Figure 14 a and 14b separate, all realize the shift position of hope having accomplished according to Figure 13 b.
Reference numerals list
1,1 ' conductor segment/shelf
2 springs
3 welding positions
4 sliding parts
5 gather indicator elment (Sammelanzeigeelement)
6 encapsulating housings
7,7 ' variable resistor
8 gas discharge protectors
9 Connection Elements
10 are threaded
11 serial line interface shells
12 sections
13 contacting elements
14 contact chips
15 surface portions
16 face portion
17 cavitys
18 cross structures
19 screw thread terminals parts
20 housing sections
21 observation windows

Claims (17)

1. over-pressure safety device; Be included in the mechanical separator that starts under the thermal overload situation; Said separator comprises Connection Element; Each said Connection Element can move to the position of current interruptions or current potential separation through spring force sliding part that load or pretension from the position of closure, and wherein the position of the said closure of each Connection Element is fixed by the binding agent of scolder or ability thermal release, it is characterized in that; Each said Connection Element comprises the metal shelf of a pair of shunting; The corresponding contact chip that each end parts parallel towards the Overvoltage protecting unit sensing is extended and the some place holds Overvoltage protecting unit therein of said shelf, each end of the Overvoltage protecting unit dorsad of each said shelf interconnect with surrounding a free space and have and be used for the outside link or the section of terminals, and in said free space, packing into has the sliding part of preloading spring; Wherein initial tension of spring is directed towards the direction of the contact chip of Overvoltage protecting unit; In addition, the section that sliding part has wedge-type shape and/or shelf has the inclined-plane, so that when sliding part moves, produce the force component on the end that extends in parallel that acts on shelf; Thereby can move and leave said contact chip in each said end, and formation is welded to connect or bonds and is connected in the zone end that extends in parallel of shelf and contact chip.
2. over-pressure safety device according to claim 1 is characterized in that, said sliding part has a flat surface portion, is used for visually with the corresponding slide positions of signal indication.
3. over-pressure safety device according to claim 2 is characterized in that, below the said surface portion of movable sliding part, is provided with the other face that can be exposed by sliding part, is used for visually using the signal indication released state.
4. over-pressure safety device according to claim 1 and 2 is characterized in that, in movable sliding part, longitudinally is provided with a cavity, is used to hold an end of preloading spring.
5. over-pressure safety device according to claim 1 and 2 is characterized in that, in the bottom of sliding part, processes gathering sill.
6. over-pressure safety device according to claim 1 and 2 is characterized in that, fixed-site is carried out through scolder or binding agent in the said end of each that extends in parallel, but the internal stress through machinery is pushed open each other in separation process.
7. over-pressure safety device according to claim 1 and 2 is characterized in that, said shelf constitutes symmetrical.
8. over-pressure safety device according to claim 1 and 2 is characterized in that, under the situation of separating, sliding part moves into welding or the join domain and pass said zone to avoid occurring solder line of boning.
9. over-pressure safety device according to claim 1 and 2 is characterized in that said sliding part is made up of electrical insulating material.
10. over-pressure safety device according to claim 1 and 2 is characterized in that Overvoltage protecting unit comprises one or more variable resistors.
11. over-pressure safety device according to claim 1; It is characterized in that; At least one Overvoltage protecting unit is arranged in the encapsulating housing, and said encapsulating housing has a plurality of openings that are used for the electric contact connection, and wherein sliding part is arranged on this encapsulating housing.
12. over-pressure safety device according to claim 11 is characterized in that, the section that is used for outside terminals of said shelf is bearing in encapsulating housing.
13. over-pressure safety device according to claim 11 is characterized in that, a plurality of Overvoltage protecting units are arranged in the encapsulating housing parallelly connectedly.
14. over-pressure safety device according to claim 11; It is characterized in that; A plurality of encapsulating housings and that have the Overvoltage protecting unit that is positioned at wherein and shelf that is provided with respectively and sliding part gather indicator elment and link to each other, so that indicate possible released state by the logical "or" relation.
15. over-pressure safety device according to claim 11 is characterized in that, is used for outside link or terminals each said section and constitutes and be used for the screw contacting.
16., it is characterized in that each Overvoltage protecting unit that is arranged in encapsulating housing serial line interface shell of packing into according to each described over-pressure safety device in the claim 11 to 15.
17. over-pressure safety device according to claim 16; It is characterized in that; Each Overvoltage protecting unit that is arranged in encapsulating housing separately constitutes the variable resistor of dish type, wherein in the serial line interface enclosure at least one gas discharge protector is set additionally.
CN2008800198975A 2007-06-11 2008-03-28 Overvoltage protection device with mechanical disconnection means which can be activated in the event of a thermal overload Expired - Fee Related CN101711417B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102007026852 2007-06-11
DE102007026852.3 2007-06-11
DE102007042991.8 2007-09-10
DE102007042991A DE102007042991B4 (en) 2007-06-11 2007-09-10 Surge protection device with mechanical disconnection device activated in thermal overload
PCT/EP2008/053750 WO2008151861A1 (en) 2007-06-11 2008-03-28 Overvoltage protection device with mechanical arresting device activated in the case of thermal overload

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CN101711417A CN101711417A (en) 2010-05-19
CN101711417B true CN101711417B (en) 2012-02-01

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EP2047487B1 (en) 2010-05-26
DE102007042991A1 (en) 2008-12-18
PL2047487T3 (en) 2010-10-29
DE502008000709D1 (en) 2010-07-08
CN101711417A (en) 2010-05-19
WO2008151861A1 (en) 2008-12-18
RU2009146876A (en) 2011-07-20
ATE469427T1 (en) 2010-06-15
DE102007042991B4 (en) 2009-09-17
EP2047487A1 (en) 2009-04-15

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