CN101231925B - Electromagnetic releasing device of protect switch and protect switch thereof - Google Patents
Electromagnetic releasing device of protect switch and protect switch thereof Download PDFInfo
- Publication number
- CN101231925B CN101231925B CN2008100041701A CN200810004170A CN101231925B CN 101231925 B CN101231925 B CN 101231925B CN 2008100041701 A CN2008100041701 A CN 2008100041701A CN 200810004170 A CN200810004170 A CN 200810004170A CN 101231925 B CN101231925 B CN 101231925B
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- release device
- electromagnetic release
- adapter
- spacing
- adapter bar
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- 230000003044 adaptive effect Effects 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims description 25
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 14
- 230000003139 buffering effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- RHBRMCOKKKZVRY-ITLPAZOVSA-N naltrexone hydrochloride Chemical compound Cl.N1([C@@H]2CC3=CC=C(C=4O[C@@H]5[C@](C3=4)([C@]2(CCC5=O)O)CC1)O)CC1CC1 RHBRMCOKKKZVRY-ITLPAZOVSA-N 0.000 description 1
- 238000010010 raising Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7463—Adjusting only the electromagnetic mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2463—Electromagnetic mechanisms with plunger type armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1054—Means for avoiding unauthorised release
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention relates to an electromagnetic release device (2) for a protection switch (1). In order to apply the protection switch(1) in a wider network voltage range, the release device is provided with at least an adaptive equipment(15) which is used for adapting to at least a keeper(6) relative to release characteristics of a circuit breaker(3) of the protection switch(1). The protection switch (1) having the electromagnetic release device (2) can be driven by the integrative circuit breaker (3) in a wider network voltage range.
Description
Technical field
The present invention relates to a kind of electromagnetic release device of protection switch.In addition, the invention still further relates to a kind of protection switch, particularly have the differential current protection switch of electromagnetic release device.
Background technology
The dangerous electric current that flows through human body is known as the people when in electric equipment, using protection switch to avoid contacting the environment division of conducting voltage with the protection people.In this protection switch, failure current protection switch is different with differential current protection switch, and wherein failure current protection switch does not rely on line voltage and comes work, and on the contrary, differential current protection switch then depends on line voltage work.The principle structure of failure current protection switch and differential current protection switch is for example explained in DE 198 42 469 A1.
Because differential current protection switch depends on line voltage work and when voltage ripple of power network, also must cut off the power supply safely; So produce such problem; Promptly depend on line voltage, effect has different release forces on the circuit breaker of differential current protection switch.For fear of infringement and long life-span of assurance, the circuit breaker of differential current protection switch must so mechanically be provided with, although promptly circuit breaker stands big voltage fluctuation, circuit breaker is also in proper working order.The shortcoming of known differential current protection switch is, based on the adaptive different release force of voltage range to be covered the time, when known circuit breaker together uses with simple electromagnetic release device, can bring problem.
Summary of the invention
The objective of the invention is to, can in bigger line voltage scope, use protection switch, particularly use differential current protection switch with simple mode.
This purpose realizes through the characteristic of independent claims 1.Relate to these assemblies at the electromagnetic release device according to protection switch of the present invention, it has:
A. at least one has the solenoid of coil axis,
B. at least one armature of moving of coil axis along the line,
C. at least one and solenoid and the coefficient yoke of armature, and
D. at least one adapting appts is used for adaptive at least one armature with respect to protection switch
The release characteristics of circuit breaker, this adapting appts has:
I. at least one adapter matrix,
Ii. at least one adapter bar that can rotate and can be driven by at least one armature around rotation with respect to the adapter matrix is with cut-off breaker, and
Iii. at least one and adapter matrix and the coefficient spring part of adapter bar.
By means of at least one rotating adapter bar, can realize release travel and release force adaptive of the adaptive of release characteristics, particularly at least one armature with simple mode.At least one and the coefficient spring part of adapter bar produce the moment of reaction with respect to the moment that is produced by the release force of at least one armature on the one hand, and after driving at least one armature, are used to make at least one adapter bar to reset on the other hand.
Through at least one adapter bar and at least one spring part coefficient with it; The power that affacts on the circuit breaker of protection switch also can be provided with when bigger voltage fluctuation (for example 50V is to 400V) in this wise; Promptly prescribe a time limit at the following of voltage range on the one hand, circuit breaker is discharged reliably, and on voltage range, prescribes a time limit on the other hand; High release force can not make the circuit breaker damage, thus the life-span of improving circuit breaker.Therefore, electromagnetic release device has realized that with simple mode the protection switch with incorporate circuit breaker uses in the scope of the broad of line voltage.Thus, only at least one adapting appts mechanically is set, and with the mode of complicacy the circuit breaker of protection switch is set, thereby provide cost savings unlike such before for bigger line voltage scope.In addition, cost savings realize thus, promptly can use the circuit breaker of this failure current protection switch, and this circuit breaker is set for constant release force.
Favourable design of the present invention is drawn by the characteristic of the claim that is subordinated to claim 1.
Advantageously; At least one adapter bar have with coefficient first contact zone of at least one armature and with coefficient second contact zone of circuit breaker; Wherein first contact zone constitutes first spacing with respect to rotation, and second contact zone constitutes second spacing with respect to rotation, and second spacing with respect to the ratio of first spacing greater than 1.5; Particularly greater than 2.0, especially greater than 2.5.Through this proportionate relationship of spacing, make releasing device be matched with given circuit breaker with simple mode.What have decisive significance for coupling is the minimum force when the lower voltage limit of 50V, thereby circuit breaker is discharged reliably.
Reasonably; At least one adapter bar has and coefficient the 3rd contact zone of at least one spring part, and wherein the 3rd contact zone constitutes the 3rd spacing with respect to rotation, and first spacing with respect to the ratio of the 3rd spacing less than 1.5; Especially less than 1.0, especially less than 0.5.Through this proportionate relationship of spacing, can regulate at least one spring part with simple mode and affact the reaction force at least one adapter bar, the ratio of its pitch is more little, can reduce the structure space of adapting appts more.At this, spring part is provided with like this, and promptly armature can be returned to its initial position effectively on the one hand, when the lower voltage limit of 50V, guarantees enough release reliabilities on the other hand.
In addition; Advantageously propose; Electromagnetic release device has at least one and at least one adapter matrix and the coefficient buffer unit of at least one adapter bar to cushion at least one adapter bar; When the high line voltage of the for example 400V of protection switch, be limited in the power that affacts when discharging on the circuit breaker and the acceleration energy of adapter bar through at least one buffer unit.
Reasonably, at least one buffer unit is adjacent to the 3rd contact zone setting, can be implemented in the high restraining moment at least one adapter bar near the setting of the 3rd contact zone.
In addition, at least one buffer unit can design with at least one adapter bar integratedly.The design of one is with low cost.
Advantageously, at least one buffer unit all is made of plastics with at least one adapter bar.The design that is made of plastics is with low cost, and has prevented that magneticaction is at least one adapter bar and at least one buffer unit.
Advantageously propose, at least one buffer unit is designed to clavate.The design of the clavate of buffer unit can be made simply and be firm, and the bending rigidity through at least one buffer unit can be adjusted in the restraining moment at least one adapter bar with simple mode.
In addition, the protection switch of the characteristic of this purpose through having claim 11, particularly differential current protection switch is realized.The advantage of protection switch is corresponding to the said advantage according to electromagnetic release device of the present invention.
Description of drawings
Next, through the description of embodiment being provided other characteristic, advantage and details of the present invention with reference to accompanying drawing.
Fig. 1 shows the schematic diagram of protection switch in initial condition with electromagnetic release device, and
Fig. 2 shows the schematic diagram of protection switch in release condition with electromagnetic release device.
Embodiment
Protection switch 1 is designed to differential current protection switch (DI protection switch).Protection switch 1 have electromagnetic release device 2 and with the coefficient circuit breaker 3 of this releasing device.
In addition, electromagnetic release device 2 comprises adapting appts 15, is used for the release travel X and the release force F of adaptive armature 6
AAdapting appts 15 has adapter matrix 16, and it is fixed on the unshowned housing of protection switch 1 and is used to hold solenoid 4, armature 6 and yoke 7.Adapter matrix 16 is on a side of circuit breaker 3, having the protuberance 17 that extends along coil axis 5, and on this protuberance, adapter bar 18 is provided with respect to adapter matrix 16 around the rotation 19 that extends transverse to coil axis 5 rotationally.Adapter bar 18 designs like this, and promptly it operationally is used for discharging circuit breaker 3 through armature 6 and release pin 11.
In addition, adapting appts 15 comprises buffer unit 25, itself and adapter matrix 16 and 18 actings in conjunction of adapter bar with the motion of buffering adapter bar 18 and adjacent to the 3rd contact zone 24 be arranged on adapter bar 18 on a side of adapter matrix 16.Buffer unit 25 be clavate and form with adapter bar 18 and substantial lateral own is extended in adapter bar 18.The buffer unit 25 of clavate constitutes angle [alpha] with adapter bar 18, and wherein angle [alpha] is between 45 ° and 90 °, especially between 60 ° and 90 °, especially between 60 ° and 85 °.Against adapter matrix 16, buffer unit 25 bends to semicircle on its free end for better.
Circuit breaker 3 be designed to latching device and comprise first interface components 26, with coefficient second interface components 27 of this first interface components and backstopping assembly 28.First interface components 26 is designed to clavate basically and is provided with rotationally around the first interface components rotation 29, and wherein the free end of first interface components 26 extends in the zone of action of adapter bar 18.First interface components 26 has the first linking stopper section 30 on the side of second interface components 27.Second interface components 27 is provided with rotationally and on free end, has second a linking stopper section 32 around the second interface components rotation 31.Be connected stopper section 30, the 32 common cohesive positions 33 that form.The side away from adapter bar 18 at first interface components 26 is provided with backstopping assembly 28.
In addition, protection switch 1 comprises unshowned summation current transformer and unshowned release electronic equipment, and protection switch 1 is connected on the supply network by means of these equipment, with the protection personal security.Supply network has line voltage U
NIn the design at the two poles of the earth of protection switch 1, this protection switch typically in supply network with 50V to the line voltage U between the 230V
NCome work.In the design of three utmost points of protection switch 1 or four utmost points, this protection switch typically in supply network with 50V to the line voltage U between the 400V
NWork.In DE 19,842 469 A1, explain for the principle setting of protection switch 1 in supply network.
Next the operation principle of protection switch 1 will be described, Fig. 1 shows the protection switch 1 in the initial condition.In this initial condition, worked in fault-free ground by the supply network of protection switch 1 protection.Do not have electric current to flow through solenoid 4, thereby do not have release force to affact on the armature 6.Adapter bar 18 is pressed to release pin 11 based on the spring part 20 of bias voltage through first contact zone 22, wherein release pin 11 through pin stopper section 14 to adapter matrix 16 or alternatively to the side 9 of yoke 7 against.Circuit breaker 3 is connected cohesive position 33 by means of being connected stopper section 30,32, thereby circuit breaker 3 is not activated and electric current can flow through supply network.
If in the supply network by protection switch 1 protection, break down, for example because personnel touch the part of conducting voltage, thereby the summation current transformer of protection switch 1 detects differential current.This differential current is sensed a voltage at summation current transformer, and this voltage is that of differential current is worth and depends on line voltage U
NAnd amplify through electronic equipment.Voltage causes electric current to flow in solenoid 4, to such an extent as to by solenoid 4 generation magnetic fields, its magnetic line of force is arranged essentially parallel to coil axis 5 and extends in solenoid 4.Amplify through yoke 7 in magnetic field.Make magneticaction to armature 6 through magnetic field, this magnetic force is called release force F
AAnd being arranged essentially parallel to coil axis 5 points to the direction of adapter bar 18.
Based on release force F
A, armature 6 is with the direction motion of adapter bar 18, and wherein release pin 11 makes adapter bar 18 rotate around rotation 19.Through release force F
ARelease force F is depended in the torque around rotation 19 that on adapter bar 18, produces
AValue and spacing A
1When adapter bar 18 rotated, spring part 20 was by together extruding, and wherein spring part 20 applies spring force F on adapter bar 18
FThrough spring force F
FThe moment of reaction that generation is pointed to respect to the rotation of adapter bar 18, and this moment of reaction depends on spring force F
FNumerical value and spacing A
3By release force F
AThe torque that produces and by spring force F
FThe moment of reaction of the relative point that produces draws synthetic torque, and this synthetic torque is to adapter bar 18 and make it center on rotation 19 rotations.
Through rotation forward; Adapter bar 18 with second contact zone 23 collides on biased first interface components 26; And this interface components during this period around the first interface components rotation 29 rotate up to be connected stopper section 30,32 no longer each other against, cohesive position 33 is disconnected thus.Through breaking off cohesive position 33, biased second interface components 27 rotates around the second interface components rotation 31.Through the rotation of second interface components 27, circuit breaker 3 is disconnected, and the electric current that wherein flows to the supply network by protection switch 1 protection is interrupted.When first interface components 26 rotated, adapter bar 18 applied power F
K, this power depends on the synthetic torque on adapter bar 18 on the one hand, depends on spacing A on the other hand
2Because release force F
ADepend on the release force that line voltage and circuit breaker 3 must discharge effectively on the one hand and when the high pressure of 230V or 400V, form several times of raisings on the other hand when the low pressure of 50V; So adapting appts 15 must be able to be contained in necessary energy, to avoid to the infringement of circuit breaker 3 and the life-span of having realized length therefrom.Affact the power F on the circuit breaker 3
KCan be on the one hand by the second spacing A
2To the first spacing A
1Ratio influence power F wherein
KMore little, spacing ratio A then
2/ A
1Big more.On the other hand, affact power F on the circuit breaker 3
KCan receive the moment of reaction influence that produces by spring part 20.The moment of reaction that is produced by spring part 20 is big more, then affacts the power F on the circuit breaker 3
KMore little.The moment of reaction can receive the influence of the spring rate of spring part 20 on the one hand, can receive the first spacing A on the other hand
1To the 3rd spacing A
3The influence of ratio.Bigger and the spacing ratio A of the spring rate of spring part 20
3/ A
1Big more, then the moment of reaction is big more.Preferably, the moment of reaction becomes greatly according to the elastic stiffness of spring part 20, thus less spacing ratio A
3/ A
1The small construction space requirement that will cause adapter bar 18.
At high release force F
AIn, adapter bar 18 rotates around rotations 19 like this, and promptly buffer unit 25 is against adapter matrix 16 and utilize adapter bar 18 rotation forward crooked.Based on the bigger bending stiffness of buffer unit 25, the extra moment of reaction will affact on the adapter bar 18, and this moment of reaction itself has limited rotation greatly and effectively through adapter bar 18 rotation change forward.To avoid at bigger release force F through buffer unit 25
AThe time adapter bar 18 this degree ground rotate, promptly first interface components 26 hits by backstopping assembly 28 and makes circuit breaker 3 bear high mechanical load thus.Only when the situation of exception, backstopping assembly is used to limit the motion of first interface components 26.
By means of circuit breaker 3 interrupt flows behind electric current by the supply network of protection switch 1 protection, will decay by the magnetic field that solenoid 4 produces, wherein release force F
ABecome zero.Based on the moment of reaction that produces by spring part 20; Adapter bar 18 turns back to the initial condition shown in Fig. 1 from the release condition shown in Fig. 2; Wherein armature 6 moves a period of time along coil axis 5, up to pin stopper section 14 once more against adapter matrix 16 or yoke 7.Circuit breaker 3 must manually rotate with closure.
Through adapting appts 15; Electromagnetic release device 2 matees with simple mode like this; Promptly can use the circuit breaker 3 of one, wherein preferably can use identical circuit breaker 3 with differential current protection switch for failure current protection switch for bigger line voltage scope.Through adapter bar 18, spring part 20 and buffering parts 25, release travel X with affact the power F on the circuit breaker 3
KCan be provided with neatly and limit.With respect to the design of the clavate of buffer unit 25, this buffer unit also can be alternatively be designed to rubber bumper or other spring part with the form of helical spring or dish-type spring.
Claims (23)
1. electromagnetic release device that is used for protection switch has:
A. at least one has the solenoid (4) of coil axis (5),
B. at least one armature (6) that can move along said coil axis (5),
C. at least one and said solenoid (4) and the coefficient yoke of said armature (6) (7), and
D. at least one adapting appts (15) is used for the release characteristics of adaptive said at least one armature (6) with respect to the circuit breaker (3) of protection switch (1), and said adapting appts has:
I. at least one adapter matrix (16),
Ii. at least one adapter bar (18) that can rotate and can be driven by at least one armature (6) around rotation (19) with respect to said adapter matrix (16) to be discharging said circuit breaker (3), and
Iii. at least one and said adapter matrix (16) and the coefficient spring part of said adapter bar (18) (20).
2. electromagnetic release device according to claim 1; It is characterized in that; Said at least one adapter bar (18) have with coefficient first contact zone of said at least one armature (6) (22) and with coefficient second contact zone of said circuit breaker (3) (23), wherein said first contact zone (22) constitutes the first spacing (A with respect to said rotation (19)
1), said second contact zone (23) constitutes the second spacing (A with respect to said rotation (19)
2), and the said second spacing (A
2) with respect to the said first spacing (A
1) ratio greater than 1.5.
3. electromagnetic release device according to claim 2 is characterized in that, the said second spacing (A
2) with respect to the said first spacing (A
1) ratio greater than 2.0.
4. electromagnetic release device according to claim 2 is characterized in that, the said second spacing (A
2) with respect to the said first spacing (A
1) ratio greater than 2.5.
5. according to each described electromagnetic release device in the claim 2 to 4; It is characterized in that; Said at least one adapter bar (18) has and coefficient the 3rd contact zone of said at least one spring part (20) (24), and wherein said the 3rd contact zone (24) constitutes the 3rd spacing (A with respect to said rotation (19)
3), and the said first spacing (A
1) with respect to said the 3rd spacing (A
3) ratio less than 1.5.
6. electromagnetic release device according to claim 5 is characterized in that, the said first spacing (A
1) with respect to said the 3rd spacing (A
3) ratio less than 1.0.
7. electromagnetic release device according to claim 5 is characterized in that, the said first spacing (A
1) with respect to said the 3rd spacing (A
3) ratio less than 0.5.
8. according to each described electromagnetic release device in the claim 1 to 4; It is characterized in that said electromagnetic release device has at least one and said adapter matrix (16) and the coefficient buffer unit of said adapter bar (18) (25) to cushion said adapter bar (18).
9. electromagnetic release device according to claim 5 is characterized in that, said electromagnetic release device has at least one and said adapter matrix (16) and the coefficient buffer unit of said adapter bar (18) (25) to cushion said adapter bar (18).
10. electromagnetic release device according to claim 6 is characterized in that, said electromagnetic release device has at least one and said adapter matrix (16) and the coefficient buffer unit of said adapter bar (18) (25) to cushion said adapter bar (18).
11. electromagnetic release device according to claim 7 is characterized in that, said electromagnetic release device has at least one and said adapter matrix (16) and the coefficient buffer unit of said adapter bar (18) (25) to cushion said adapter bar (18).
12. electromagnetic release device according to claim 8 is characterized in that, said at least one buffer unit (25) is provided with adjacent to said the 3rd contact zone (24).
13. electromagnetic release device according to claim 8 is characterized in that, said at least one buffer unit (25) designs with said at least one adapter bar (18) integratedly.
14. electromagnetic release device according to claim 12 is characterized in that, said at least one buffer unit (25) designs with said at least one adapter bar (18) integratedly.
15. electromagnetic release device according to claim 8 is characterized in that, said at least one buffer unit (25) and said at least one adapter bar (18) all are made of plastics.
16. electromagnetic release device according to claim 12 is characterized in that, said at least one buffer unit (25) and said at least one adapter bar (18) all are made of plastics.
17. electromagnetic release device according to claim 14 is characterized in that, said at least one buffer unit (25) and said at least one adapter bar (18) all are made of plastics.
18. electromagnetic release device according to claim 8 is characterized in that, said at least one buffer unit (25) is designed to clavate.
19. electromagnetic release device according to claim 12 is characterized in that, said at least one buffer unit (25) is designed to clavate.
20. electromagnetic release device according to claim 14 is characterized in that, said at least one buffer unit (25) is designed to clavate.
21. electromagnetic release device according to claim 15 is characterized in that, said at least one buffer unit (25) is designed to clavate.
22. a protection switch has according to each described electromagnetic release device in the claim 1 to 21.
23. protection switch according to claim 22 is characterized in that, said protection switch is a differential current protection switch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200710003242 DE102007003242B3 (en) | 2007-01-23 | 2007-01-23 | Electromagnetic release device for protection switch, has electromagnetic coil fixed with coil axis, armature moving along coil axis, and yoke acting together with electromagnetic coil and armature |
| DE102007003242.2 | 2007-01-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101231925A CN101231925A (en) | 2008-07-30 |
| CN101231925B true CN101231925B (en) | 2012-06-27 |
Family
ID=39670354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100041701A Expired - Fee Related CN101231925B (en) | 2007-01-23 | 2008-01-23 | Electromagnetic releasing device of protect switch and protect switch thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101231925B (en) |
| DE (1) | DE102007003242B3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008011595A1 (en) * | 2007-09-28 | 2009-04-16 | Siemens Aktiengesellschaft | Shock-resistant tripping device for triggering a switch, in particular a circuit breaker |
| CN101770909B (en) * | 2010-01-28 | 2012-07-11 | 江苏大全凯帆电器股份有限公司 | Back-up protection tripping device of electronic type molded case circuit breaker |
| CN102184811B (en) * | 2011-05-15 | 2013-10-02 | 邳州市国龙电器有限公司 | Electronic multi-sectional overcurrent protection device |
| EP3133447B1 (en) * | 2015-08-06 | 2021-09-22 | EUCHNER GmbH + Co. KG | Safety switch |
| CN105115358A (en) * | 2015-08-25 | 2015-12-02 | 陈云桥 | Rotational centrifugal launcher |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR501415A (en) * | 1919-07-04 | 1920-04-14 | Const Electr De Delle Sa Des A | Improvement in electrical maximum relays |
| GB387037A (en) * | 1931-09-26 | 1933-02-02 | Aaron Barnett | An improved electrical cut-out |
| DE2854568A1 (en) * | 1978-12-18 | 1980-06-26 | Bbc Brown Boveri & Cie | Selective protection device for current limiting circuit breaker - has lever mechanism engaging and disengaging armature to open switch lock and to actuate contact lever |
| CN2088739U (en) * | 1991-02-01 | 1991-11-13 | 武进县新安电器开关厂 | small electromagnetic tripping device |
| DE19842469A1 (en) * | 1998-09-16 | 2000-03-23 | Siemens Ag | Safety cut-out device |
-
2007
- 2007-01-23 DE DE200710003242 patent/DE102007003242B3/en not_active Expired - Fee Related
-
2008
- 2008-01-23 CN CN2008100041701A patent/CN101231925B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR501415A (en) * | 1919-07-04 | 1920-04-14 | Const Electr De Delle Sa Des A | Improvement in electrical maximum relays |
| GB387037A (en) * | 1931-09-26 | 1933-02-02 | Aaron Barnett | An improved electrical cut-out |
| DE2854568A1 (en) * | 1978-12-18 | 1980-06-26 | Bbc Brown Boveri & Cie | Selective protection device for current limiting circuit breaker - has lever mechanism engaging and disengaging armature to open switch lock and to actuate contact lever |
| CN2088739U (en) * | 1991-02-01 | 1991-11-13 | 武进县新安电器开关厂 | small electromagnetic tripping device |
| DE19842469A1 (en) * | 1998-09-16 | 2000-03-23 | Siemens Ag | Safety cut-out device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101231925A (en) | 2008-07-30 |
| DE102007003242B3 (en) | 2008-09-04 |
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