CN205050772U - High reliability safety loop - Google Patents

High reliability safety loop Download PDF

Info

Publication number
CN205050772U
CN205050772U CN201520862210.1U CN201520862210U CN205050772U CN 205050772 U CN205050772 U CN 205050772U CN 201520862210 U CN201520862210 U CN 201520862210U CN 205050772 U CN205050772 U CN 205050772U
Authority
CN
China
Prior art keywords
stitch
resistance
detection module
return circuit
circuit detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201520862210.1U
Other languages
Chinese (zh)
Inventor
盛文龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LINCOLN ELEVATOR (CHINA) CO Ltd
Original Assignee
LINCOLN ELEVATOR (CHINA) CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LINCOLN ELEVATOR (CHINA) CO Ltd filed Critical LINCOLN ELEVATOR (CHINA) CO Ltd
Priority to CN201520862210.1U priority Critical patent/CN205050772U/en
Application granted granted Critical
Publication of CN205050772U publication Critical patent/CN205050772U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a high reliability safety loop, the contact failure that contacts is avoided to simple high efficiency, it includes DC power supply (1), the circuit comprises a switch module, a plurality of safety loop detection module, the switch module includes a plurality of switches (2), from the 2nd safety loop detection module, first input in back level safety loop detection module each trigger switch (3) is connected with the input of preceding stage safety loop detection module's direct current step -down unit, each safety loop detection module's negative pole end is connected with DC power supply's (1) negative pole, each safety loop detection module all includes opto -coupler (4), and in a safety loop detection module, a safety loop detection module's input, direct current step -down unit, opto -coupler (4), negative pole end are established ties according to the preface, and in other safety loop detection module, its input, each trigger switch (3), direct current step -down unit, opto -coupler (4), negative pole end are established ties according to the preface.

Description

High-reliability safety loop
Technical field
The utility model relates to circuit engineering field, is specifically a kind of high-reliability safety loop.
Background technology
In some environments for use, because environment is long-term dark moist, so it is bad to cause circuit contact easily to come in contact, such as elevator, it is provided with many safety return circuits, correct to ensure each action executing, very high to reliability requirement, but, in Long-Time Service, sporadic fault still exists, this is one of reason wherein, is just the loose contact caused as contact oxidation such as the relay of switch or contactors most probably, therefore, how simply to solve the problem efficiently, become one of research emphasis in industry.
Utility model content
Technical problem to be solved in the utility model is, overcomes the defect of prior art, provides a kind of high-reliability safety loop simply efficiently avoiding poor contact of contacts.
For solving the problems of the technologies described above, the utility model proposes a kind of high-reliability safety loop, it comprises DC power supply, switch module, multiple safety return circuit detection module, switch module comprises multiple switch, multiple switch is respectively the first switch to M switch, each switch is sequentially connected, multiple safety return circuit detection module is respectively the first safety return circuit detection module to N safety return circuit detection module, each safety return circuit detection module is in parallel, described M, N are natural number, and M is equal to or greater than one, N is equal to or greater than two; First switch is connected with the positive pole of DC power supply, M switch is connected with the input of the DC decompression unit of the first safety return circuit detection module, the input of other safety return circuit detection module except the first safety return circuit detection module is at least in series with a trigger switch, from the second safety return circuit detection module, the input of first in each trigger switch of rear class safety return circuit detection module is connected with the input of the DC decompression unit of prime safety return circuit detection module, and each negative pole end of safety return circuit detection module is connected with the negative pole of DC power supply; Each safety return circuit detection module includes optocoupler, in the first safety return circuit detection module, the input of the first safety return circuit detection module, DC decompression unit, optocoupler, negative pole end are sequentially connected, in other safety return circuit detection module, its input, each trigger switch, DC decompression unit, optocoupler, negative pole end are sequentially connected.
Utility model works principle is, under conducting, is exported the signal of each safety return circuit detection module by optocoupler, optocoupler has buffer action, strong anti-interference performance, reliability is high, only has when the signal of each safety return circuit detection module is all normal, equipment of the present utility model is housed just can start, such as elevator, therefore, ground conducting of only remaining valid, can maintain elevator normally to work for a long time, reliability requirement is high.
After adopting said structure, compared with prior art, the utility model has the following advantages: owing to having DC decompression unit, so DC power supply can adopt high voltage direct current, such as 110V, 220V direct current etc., adopt high voltage direct current, the easy conducting of circuit on the one hand, do not allow easily broken, especially contact place, largely avoid fault, on the other hand, switch etc. by contact realize oxide layer on its contact of components and parts of break-make under high pressure easily produce spark and ablated fall, contact turning part is sustained its quality through age, further guarantee conducting, avoid loose contact, the utility model overall structure is simple, there is the feature from safeguarding, without the need to additionally increasing multicomponent device to avoid loose contact, comprehensively above-mentioned, the utility model has simply efficiently avoids poor contact of contacts, the advantage of high reliability.
As improvement, each safety return circuit detection module includes some voltage stabilizing didoes, first resistance, second resistance, 3rd resistance, first electric capacity, second electric capacity, prevent connecing anti-diode, some voltage stabilizing didoes sequentially connect formed described in DC decompression unit, one end of first resistance is connected with DC decompression unit, one end of second resistance, one end of first electric capacity is connected with the other end of the first resistance respectively, one end of 3rd resistance, the positive pole of optocoupler input is connected with the other end of the second resistance respectively, the other end of the 3rd resistance, the negative pole of optocoupler input is connected with the anti-anode connecing anti-diode respectively, the anti-negative terminal connecing anti-diode, the other end of the first electric capacity is connected to form described negative pole end, one end of second electric capacity is connected with the positive pole of optocoupler output, the other end of the second electric capacity is connected with the negative pole of optocoupler output, like this, components and parts are few, structure is simply efficient, and prevent that connecing anti-diode can ensure to prevent from when connecting connecing instead, thus protect other components and parts, in addition, the anti-halfwave rectifier effect connecing anti-diode can be utilized when debugging, thus simplification debug process.
As improvement, be connected with the negative pole of DC power supply again after negative pole end series connection light-emitting diode, like this, the conducting state of safety return circuit detection module can be indicated simply efficiently, be more convenient to later stage repair and maintenance.
As improvement, each safety return circuit detection module includes ceramic wafer, in the same surface of ceramic wafer, described some voltage stabilizing didoes are set, first resistance, second resistance, 3rd resistance, first electric capacity, second electric capacity, prevent connecing anti-diode, optocoupler, some voltage stabilizing didoes are positioned at the left side of ceramic wafer, and sequentially distribute from bottom to top, optocoupler is positioned at the right side of ceramic wafer, first resistance, second resistance, 3rd resistance, first electric capacity, prevent connecing anti-diode all between some voltage stabilizing didoes and optocoupler, first resistance, first electric capacity, second resistance sequentially distributes from left to right, and the first resistance, first electric capacity, second resistance region is for being positioned at some voltage stabilizing didoe upper right sides, prevent that connecing anti-diode is positioned at some voltage stabilizing didoe lower right sides, 3rd resistance is positioned on the left of optocoupler, second electric capacity is positioned on the upside of optocoupler, be positioned on the downside of ceramic wafer below voltage stabilizing didoe and be provided with the first stitch, the second stitch, be positioned on the downside of ceramic wafer below optocoupler and be provided with the 3rd stitch, the 4th stitch, be positioned on the downside of ceramic wafer on the left of the 3rd stitch and be provided with the 5th stitch, the 6th stitch, first stitch is the input of DC decompression unit, second stitch is negative pole end, and the 3rd stitch, the 4th stitch are respectively the both positive and negative polarity of optocoupler output, first stitch, second stitch, some voltage stabilizing didoes, first resistance, second resistance, 3rd resistance, first electric capacity, second electric capacity, prevent connecing anti-diode, optocoupler, 3rd stitch, the copper cash that the copper facing of electric connection between 4th these components and parts of stitch on ceramic wafer is formed connects, like this, because direct current reduces to low pressure from high pressure, the caloric requirement produced is derived in time, otherwise easily cause fault, ceramic wafer not only intensity is high, good insulating, and radiating effect might as well, so be more conducive to improving reliability of the present utility model and stability, meanwhile, the distribution of each components and parts is reasonable, mutually disturbs few while of compacter, the circuit of the copper cash that copper facing is formed is brief, after ceramic wafer carrying, the major part of safety return circuit detection module has been made into sheet plug-in unit, and the quantity increase and decrease of safety return circuit detection module is more flexible and convenient, more be convenient to design and produce, there is modularization feature, be more conducive to reducing design and production cost, improve production efficiency and product quality.
As improvement, each voltage stabilizing didoe is paster voltage-stabiliser tube, first resistance, the second resistance, the 3rd resistance are fixed carbon resister, first electric capacity is electrochemical capacitor, like this, is more convenient to be arranged on ceramic wafer, enhance productivity, reduce production cost, meanwhile, paster voltage-stabiliser tube, fixed carbon resister, electrochemical capacitor reach balance between cost and required stability, durability.
As improvement; ceramic wafer outer surface is provided with described some voltage stabilizing didoes, the first resistance, the second resistance, the 3rd resistance, the first electric capacity, the second electric capacity, the anti-electron level epoxy resin connecing anti-diode, optocoupler covering; like this; one side is to each components and parts more protection and fix; improve insulating properties on the other hand; insulating properties such as between each components and parts, this improvement is advantageously in raising durability, stability and reliability.
As improvement, first stitch, the second stitch, the 3rd stitch, the 4th stitch, the 5th stitch, the 6th stitch are zinc-plated draw point, like this, each stitch intensity and toughness high, ceramic wafer can be supported, advantageously in raising durability of the present utility model, stability and reliability reliable and stablely.
As improvement, the spacing between the first stitch and the second stitch is greater than the spacing between the 3rd stitch and the 4th stitch, the 3rd stitch, 4th stitch, 5th stitch, spacing between 6th stitch is equal, and the spacing between the second stitch and the 5th stitch is at least greater than 8 millimeters, like this, due to the 5th stitch, 6th stitch is sky pin in fact, there is not electric connection, the 5th stitch, the effect of the 6th stitch is to provide ceramic wafer to strengthen supporting, and the 3rd stitch, 4th stitch is that light current exports, so the 5th stitch, 6th stitch is arranged on the 3rd stitch, more reasonable benefit/risk on the left of 4th stitch, structure is more compact, and the spacing between the second stitch and the 5th stitch is at least greater than 8 millimeters, can effectively isolate, and prevents the first stitch, the strong power part impact of the second stitch is positioned at the weak current part on right side, the first stitch, the object that second stitch spacing is large is also the first stitch, strengthen isolation between second stitch, avoid as far as possible influencing each other, said structure is ensureing that compact conformation is simple while, and emphasis has carried out strengthening supporting and isolation design, thus advantageously in raising durability of the present utility model, stability and reliability.
Accompanying drawing explanation
Fig. 1 is the circuit theory schematic diagram in the utility model high-reliability safety loop.
Fig. 2 is the ceramic wafer part-structure schematic diagram in the utility model high-reliability safety loop.
Shown in figure, 1, DC power supply, 2, switch, 3, trigger switch, 4, optocoupler, 5, voltage stabilizing didoe, the 6, first resistance, 7, the second resistance, the 8, the 3rd resistance, the 9, first electric capacity, 10, the second electric capacity, 11, anti-connect anti-diode, 12, light-emitting diode, 13, the first stitch, the 14, second stitch, the 15, the 3rd stitch, 16, the 4th stitch, the 17, the 5th stitch, the 18, the 6th stitch.
Embodiment
Below the utility model is described in further detail:
The utility model high-reliability safety loop, it comprises DC power supply 1, switch module, multiple safety return circuit detection module, switch module comprises multiple switch 2, multiple switch 2 is respectively the first switch to M switch, and each switch 2 is sequentially connected, and multiple safety return circuit detection module is respectively the first safety return circuit detection module to N safety return circuit detection module, each safety return circuit detection module is in parallel, described M, N are natural number, and M is equal to or greater than one, N is equal to or greater than two, first switch is connected with the positive pole of DC power supply 1, M switch is connected with the input of the DC decompression unit of the first safety return circuit detection module, the input of other safety return circuit detection module except the first safety return circuit detection module is at least in series with a trigger switch 3, from the second safety return circuit detection module, the input of first in each trigger switch 3 of rear class safety return circuit detection module is connected with the input of the DC decompression unit of prime safety return circuit detection module, the input of first in each trigger switch 3 of i.e. the second safety return circuit detection module is connected with the input of the DC decompression unit of the first safety return circuit detection module, the input of first in each trigger switch 3 of the 3rd safety return circuit detection module is connected with the input of the DC decompression unit of the second safety return circuit detection module, the like, finally, the input of first in each trigger switch 3 of N safety return circuit detection module is connected with the input of the DC decompression unit of N-1 safety return circuit detection module, the negative pole end of each safety return circuit detection module is connected with the negative pole of DC power supply 1, each safety return circuit detection module includes optocoupler 4, in the first safety return circuit detection module, the input of the first safety return circuit detection module, DC decompression unit, optocoupler 4, negative pole end are sequentially connected, in other safety return circuit detection module, its input, each trigger switch 3, DC decompression unit, optocoupler 4, negative pole end are sequentially connected.
Each safety return circuit detection module includes some voltage stabilizing didoes 5, first resistance 6, second resistance 7, 3rd resistance 8, first electric capacity 9, second electric capacity 10, prevent connecing anti-diode 11, some voltage stabilizing didoes 5 sequentially connect formed described in DC decompression unit, one end of first resistance 6 is connected with DC decompression unit, one end of second resistance 7, one end of first electric capacity 9 is connected with the other end of the first resistance 6 respectively, one end of 3rd resistance 8, the positive pole of optocoupler 4 input is connected with the other end of the second resistance 7 respectively, the other end of the 3rd resistance 8, the negative pole of optocoupler 4 input is connected with the anti-anode connecing anti-diode 11 respectively, the anti-negative terminal connecing anti-diode 11, the other end of the first electric capacity 9 is connected to form described negative pole end, one end of second electric capacity 10 is connected with the positive pole of optocoupler 4 output, the other end of the second electric capacity 10 is connected with the negative pole of optocoupler 4 output.
Be connected with the negative pole of DC power supply 1 again after negative pole end series connection light-emitting diode 12.
Each safety return circuit detection module includes ceramic wafer, in the same surface of ceramic wafer, described some voltage stabilizing didoes 5 are set, first resistance 6, second resistance 7, 3rd resistance 8, first electric capacity 9, second electric capacity 10, prevent connecing anti-diode 11, optocoupler 4, some voltage stabilizing didoes 5 are positioned at the left side of ceramic wafer, and sequentially distribute from bottom to top, optocoupler 4 is positioned at the right side of ceramic wafer, first resistance 6, second resistance 7, 3rd resistance 8, first electric capacity 9, prevent connecing anti-diode 11 all between some voltage stabilizing didoes 5 and optocoupler 4, first resistance 6, first electric capacity 9, second resistance 7 sequentially distributes from left to right, and the first resistance 6, first electric capacity 9, second resistance 7 region is for being positioned at some voltage stabilizing didoe 5 upper right sides, prevent that connecing anti-diode 11 is positioned at some voltage stabilizing didoe 5 lower right sides, 3rd resistance 8 is positioned on the left of optocoupler 4, second electric capacity 10 is positioned on the upside of optocoupler 4, be positioned on the downside of ceramic wafer below voltage stabilizing didoe 5 and be provided with the first stitch 13, second stitch 14, be positioned on the downside of ceramic wafer below optocoupler 4 and be provided with the 3rd stitch 15, the 4th stitch 16, be positioned on the downside of ceramic wafer on the left of the 3rd stitch 15 and be provided with the 5th stitch 17, the 6th stitch 18, first stitch 13 is the input of DC decompression unit, second stitch 14 is negative pole end, and the 3rd stitch 15, the 4th stitch 16 are respectively the both positive and negative polarity of optocoupler 4 output, the copper cash that first stitch 13, second stitch 14, some voltage stabilizing didoes 5, first resistance 6, second resistance 7, the 3rd resistance 8, first electric capacity 9, second electric capacity 10, the copper facing of the anti-electric connection connect between anti-diode 11, optocoupler 4, the 3rd stitch 15, the 4th these components and parts of stitch 16 on ceramic wafer are formed connects.
Each voltage stabilizing didoe 5 is paster voltage-stabiliser tube, and the first resistance 6, second resistance 7, the 3rd resistance 8 are fixed carbon resister, and the first electric capacity 9 is electrochemical capacitor.
Ceramic wafer outer surface is provided with described some voltage stabilizing didoes 5, first resistance 6, second resistance 7, the 3rd resistance 8, first electric capacity 9, second electric capacity 10, anti-connects anti-diode 11, electron level epoxy resin that optocoupler 4 covers.
First stitch 13, second stitch 14, the 3rd stitch 15, the 4th stitch 16, the 5th stitch 17, the 6th stitch 18 are zinc-plated draw point.
Spacing between first stitch 13 and the second stitch 14 is greater than the spacing between the 3rd stitch 15 and the 4th stitch 16, spacing between 3rd stitch 15, the 4th stitch 16, the 5th stitch 17, the 6th stitch 18 is equal, and the spacing between the second stitch 14 and the 5th stitch 17 is at least greater than 8 millimeters.
In this example, the output of DC power supply 1 is the 220V direct current with pulsatile characteristics obtained after full-bridge rectification city's 220V alternating current, and not only structure is simple, and efficiency is high, and effective to the ablation of oxide layer; Switch module is the switches 2 of six series connection, and namely M is six, and each switch 2 can by as a point of safes; Safety return circuit detection module is three, namely N is three, the input of the second safety return circuit detection module is in series with one for judging the trigger switch 3 whether elevator cage door closes, car door lock alleged in the industry at once, the input of the 3rd safety return circuit detection module is in series with two for judging the trigger switch 3 whether elevator balcony door closes, balcony door lock alleged in the industry at once; For 220V direct current, in a safety return circuit detection module, be provided with four voltage stabilizing didoes 5, if the output of DC power supply 1 is 110V direct current, so only need two voltage stabilizing didoes 5.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.

Claims (8)

1. a high-reliability safety loop, it is characterized in that, it comprises DC power supply (1), switch module, multiple safety return circuit detection module, switch module comprises multiple switch (2), multiple switch (2) is respectively the first switch to M switch, each switch (2) is sequentially connected, multiple safety return circuit detection module is respectively the first safety return circuit detection module to N safety return circuit detection module, each safety return circuit detection module is in parallel, described M, N are natural number, and M is equal to or greater than one, N is equal to or greater than two, first switch is connected with the positive pole of DC power supply (1), M switch is connected with the input of the DC decompression unit of the first safety return circuit detection module, the input of other safety return circuit detection module except the first safety return circuit detection module is at least in series with a trigger switch (3), from the second safety return circuit detection module, the input of first in each trigger switch (3) of rear class safety return circuit detection module is connected with the input of the DC decompression unit of prime safety return circuit detection module, the negative pole end of each safety return circuit detection module is connected with the negative pole of DC power supply (1), each safety return circuit detection module includes optocoupler (4), in the first safety return circuit detection module, the input of the first safety return circuit detection module, DC decompression unit, optocoupler (4), negative pole end are sequentially connected, in other safety return circuit detection module, its input, each trigger switch (3), DC decompression unit, optocoupler (4), negative pole end are sequentially connected.
2. high-reliability safety loop according to claim 1, it is characterized in that, each safety return circuit detection module includes some voltage stabilizing didoes (5), first resistance (6), second resistance (7), 3rd resistance (8), first electric capacity (9), second electric capacity (10), prevent connecing anti-diode (11), some voltage stabilizing didoes (5) sequentially connect formed described in DC decompression unit, one end of first resistance (6) is connected with DC decompression unit, one end of second resistance (7), one end of first electric capacity (9) is connected with the other end of the first resistance (6) respectively, one end of 3rd resistance (8), the positive pole of optocoupler (4) input is connected with the other end of the second resistance (7) respectively, the other end of the 3rd resistance (8), the negative pole of optocoupler (4) input is connected with the anti-anode connecing anti-diode (11) respectively, the anti-negative terminal connecing anti-diode (11), the other end of the first electric capacity (9) is connected to form described negative pole end, one end of second electric capacity (10) is connected with the positive pole of optocoupler (4) output, the other end of the second electric capacity (10) is connected with the negative pole of optocoupler (4) output.
3. high-reliability safety loop according to claim 2, is characterized in that, is connected after negative pole end series connection light-emitting diode (12) with the negative pole of DC power supply (1) again.
4. high-reliability safety loop according to claim 2, is characterized in that, each safety return circuit detection module includes ceramic wafer, arranges described some voltage stabilizing didoes (5) in the same surface of ceramic wafer, first resistance (6), second resistance (7), 3rd resistance (8), first electric capacity (9), second electric capacity (10), prevent connecing anti-diode (11), optocoupler (4), some voltage stabilizing didoes (5) are positioned at the left side of ceramic wafer, and sequentially distribute from bottom to top, and optocoupler (4) is positioned at the right side of ceramic wafer, the first resistance (6), second resistance (7), 3rd resistance (8), first electric capacity (9), prevent that connecing anti-diode (11) is all positioned between some voltage stabilizing didoes (5) and optocoupler (4), the first resistance (6), first electric capacity (9), second resistance (7) sequentially distributes from left to right, and the first resistance (6), first electric capacity (9), second resistance (7) region is for being positioned at some voltage stabilizing didoes (5) upper right side, prevent that connecing anti-diode (11) is positioned at some voltage stabilizing didoes (5) lower right side, 3rd resistance (8) is positioned at optocoupler (4) left side, and the second electric capacity (10) is positioned at optocoupler (4) upside, be positioned at voltage stabilizing didoe (5) below on the downside of ceramic wafer and be provided with the first stitch (13), second stitch (14), be positioned at optocoupler (4) below on the downside of ceramic wafer and be provided with the 3rd stitch (15), 4th stitch (16), be positioned at the 3rd stitch (15) left side on the downside of ceramic wafer and be provided with the 5th stitch (17), 6th stitch (18), the input that first stitch (13) is DC decompression unit, second stitch (14) is negative pole end, 3rd stitch (15), 4th stitch (16) is respectively the both positive and negative polarity of optocoupler (4) output, the copper cash that first stitch (13), the second stitch (14), some voltage stabilizing didoes (5), the first resistance (6), the second resistance (7), the 3rd resistance (8), the first electric capacity (9), the second electric capacity (10), the copper facing of the anti-electric connection connect between anti-diode (11), optocoupler (4), the 3rd stitch (15), the 4th stitch (16) these components and parts on ceramic wafer are formed connects.
5. high-reliability safety loop according to claim 4, it is characterized in that, each voltage stabilizing didoe (5) is paster voltage-stabiliser tube, first resistance (6), the second resistance (7), the 3rd resistance (8) are fixed carbon resister, and the first electric capacity (9) is electrochemical capacitor.
6. high-reliability safety loop according to claim 4, it is characterized in that, ceramic wafer outer surface is provided with described some voltage stabilizing didoes (5), the first resistance (6), the second resistance (7), the 3rd resistance (8), the first electric capacity (9), the second electric capacity (10), anti-connects anti-diode (11), electron level epoxy resin that optocoupler (4) covers.
7. high-reliability safety loop according to claim 4, it is characterized in that, the first stitch (13), the second stitch (14), the 3rd stitch (15), the 4th stitch (16), the 5th stitch (17), the 6th stitch (18) are zinc-plated draw point.
8. high-reliability safety loop according to claim 4, it is characterized in that, spacing between first stitch (13) and the second stitch (14) is greater than the spacing between the 3rd stitch (15) and the 4th stitch (16), spacing between 3rd stitch (15), the 4th stitch (16), the 5th stitch (17), the 6th stitch (18) is equal, and the spacing between the second stitch (14) and the 5th stitch (17) is at least greater than 8 millimeters.
CN201520862210.1U 2015-10-30 2015-10-30 High reliability safety loop Withdrawn - After Issue CN205050772U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520862210.1U CN205050772U (en) 2015-10-30 2015-10-30 High reliability safety loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520862210.1U CN205050772U (en) 2015-10-30 2015-10-30 High reliability safety loop

Publications (1)

Publication Number Publication Date
CN205050772U true CN205050772U (en) 2016-02-24

Family

ID=55344323

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520862210.1U Withdrawn - After Issue CN205050772U (en) 2015-10-30 2015-10-30 High reliability safety loop

Country Status (1)

Country Link
CN (1) CN205050772U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105280439A (en) * 2015-10-30 2016-01-27 林肯电梯(中国)有限公司 High-reliability safety loop

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105280439A (en) * 2015-10-30 2016-01-27 林肯电梯(中国)有限公司 High-reliability safety loop

Similar Documents

Publication Publication Date Title
CN201075124Y (en) Transient forward voltage tester for recuperation duration of DC converter valve
CN204858571U (en) Low pressure reactive power compensator
CN205050772U (en) High reliability safety loop
CN105207666A (en) Signal conversion circuit
CN205087734U (en) Elevator state detection circuitry
CN102623220B (en) High-pressure electronic arc-suppressing switch
CN105280439A (en) High-reliability safety loop
CN205070978U (en) Signal converting circuit
CN202282640U (en) Dual power supply automatic switching circuit
CN203561848U (en) Heavy-current switching value control circuit for electric execution mechanism
CN201594506U (en) Relay socket with built-in circuit
CN204613312U (en) A kind of three-phase load unbalance warning device
CN205087733U (en) Inspection module
CN205070783U (en) Direct current voltage reducing module
CN203513001U (en) Elevator integrated controller
CN204349922U (en) A kind of EL test circuit with protection assembly
CN204122942U (en) Anti-High-frequency Interference two-stage isolation trigger control circuit
CN202797863U (en) Time sequence protection circuit of electronic product
CN205070784U (en) Direct current voltage reducing module
CN207264976U (en) Novel breaker electricity manipulation making sheet
CN207602497U (en) The power-down protection circuit of electric operating mechanism of circuit-breaker
CN203859692U (en) Power supply device and N line lack protection circuit thereof
CN207939194U (en) A kind of overvoltage crowbar
CN202435257U (en) Protection bypass of power unit of high-voltage transducer
CN105236229A (en) Elevator state detection circuit

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20160224

Effective date of abandoning: 20171031

AV01 Patent right actively abandoned