CN102328887A - Control device for brake of elevator - Google Patents
Control device for brake of elevator Download PDFInfo
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- CN102328887A CN102328887A CN2011101958993A CN201110195899A CN102328887A CN 102328887 A CN102328887 A CN 102328887A CN 2011101958993 A CN2011101958993 A CN 2011101958993A CN 201110195899 A CN201110195899 A CN 201110195899A CN 102328887 A CN102328887 A CN 102328887A
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- elevator
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- magnet stopper
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Abstract
The present invention provides a control device for a brake of an elevator, wherein contact reliability of contacts of electromagnetic contactors and so on used in the control of an electromagnetic brake can be ensured, and replacements also can be performed according to real lss states of the contacts. The control device for the brake comprises: an electromagnetic contactor (5) which is connected in parallel with a plurality of normally open contacts (5a1, 5a2) capable of opening and closing synchronously between an electromagnetic brake (2) and a power supply (3); normally closed contacts (6b, 7b) which are connected in series to the contacts with the normally open contacts (5a1, 5a2); and a control circuit (1), wherein the control circuit selects one of the normally closed contacts (6b, 7b) to keep close, and performs control so that the residual normally closed contacts (6b, 7b) only break for a while before or after the electromagnetic contactor (5) switches the opening/closing of the normally open contacts (5a1, 5a2), and the control circuit also can change the selected normally closed contact according to the opening/closing times of the normally open contacts (5a1, 5a2) performed by the electromagnetic contactor (5).
Description
The application is with the Japanese patent application 2010-159140 (applying date: on July 13rd, 2010) be the basis, and enjoy the preceence of this application.On basis, comprise its full content with reference to this application.
Technical field
The present invention relates to be used for to be controlled at the arrester control device of the elevator of the magnet stopper that the braking of elevator uses.
Background technology
Safety in order to ensure operation possesses a plurality of safety devices in elevator.Wherein the most basic device is the brake equipment of winch.As the brake equipment of winch, generally be the magnet stopper that has utilized electromagnet.Through via electromagnetic contactor power supply being provided to this magnet stopper, release the brake, elevator is become can running state.And, when elevator stops, providing through the power supply that utilizes electromagnetic contactor to cut off to magnet stopper, keep braking mode.
When the contact of electromagnetic contactor becomes bad contact, can't carry out providing of drg power supply, therefore, can't release the brake, elevator becomes can not running state.Therefore, as the countermeasure of the bad contact of electromagnetic contactor, the scheme that the contact with electromagnetic contactor is connected in parallel and uses has been proposed.Through the contact of the electromagnetic contactor that is connected in parallel, can reduce the service stopping that elevator faults caused that causes owing to bad contact.But, since operating frequency, the contact loss of electromagnetic contactor.Therefore, for fear of the elevator faults that causes owing to bad contact, it is important before the contact reaches the life-span, changing the contact.
About the switching number of times institute of the contact endurance of electromagnetic contactor by the method for application (load type, voltage, electric current etc.) of contact and load.But, according to the specification of elevator, working voltage, electric current and different.In addition, also need consider the deviation of each electromagnetic contactor performance.Therefore, do not have same replacing benchmark, but confirm to have the replacing benchmark in abundant leeway according to the data of experiment, manufacturer prompting etc.Because such reason is not used even in fact reach the life-span fully, will change electromagnetic contactor yet.Therefore, present situation is articles for use and changes required unnecessary economical burden such as labour cost and take place chronically.
Summary of the invention
Problem to be solved by this invention provides the arrester control device of elevator, the contact reliability of the contact of electromagnetic contactor that it guarantees in the control of magnet stopper, to use etc., and change according to the loss state of the contact of reality.
This embodiment is the arrester control device that is used for being controlled at the magnet stopper that the brake equipment of elevator uses; It is characterized in that; Possess: a plurality of open contacts that electromagnetic contactor, its contact are connected in parallel between above-mentioned magnet stopper and power supply and open and close synchronously; A plurality of normally closed contacts, its respectively with above-mentioned each open contact contact that is connected in series; And control circuit; It selects in above-mentioned a plurality of normally closed contact; The normally closed contact of this selection is remained closed; Control thus remaining normally closed contact only at the front and back of the switching of switching above-mentioned each open contact through above-mentioned electromagnetic contactor disconnection certain hour, and the switching number of times of above-mentioned each open contact that carries out according to above-mentioned electromagnetic contactor changes the normally closed contact of above-mentioned selection.
According to the arrester control device of the elevator of above-mentioned formation, the contact reliability of the contact of the electromagnetic contactor that can guarantee in the control of magnet stopper, to use etc., and change according to the loss state of the contact of reality.
Description of drawings
Fig. 1 is the summary pie graph of arrester control device that expression relates to the elevator of the 1st embodiment.
Fig. 2 is the diagram of circuit that expression relates to the drg control operation of the 1st embodiment.
Fig. 3 is the figure of operation timing of each contact of presentation graphs 1.
The specific embodiment
The arrester control device of following elevator with reference to the description of drawings embodiment.
The 1st embodiment
Fig. 1 is the summary pie graph that the arrester control device of the elevator that relates to the 1st embodiment is shown.The 1st, the elevator control circuit that carries out the operation control of elevator, the 2nd, be used to brake the magnet stopper of the winch of elevator, the 3rd, the power supply of magnet stopper 2, the 4th, the brake service aware switch of the serviceability of perception magnet stopper 2.
The 5th, by the electromagnetic contactor of elevator control circuit 1 operation, its open contact 5a1,5a2 connect between magnet stopper 2 and drg power supply 3.In addition, for open contact 5a1,5a2, must use the contact that has sufficient switching performance for the voltage and current that provides to magnet stopper 2.
In addition, the 6, the 7th, by the power relay of elevator control circuit 1 operation, its normally closed contact 6b, 7b connect between magnet stopper 2 and drg power supply 3.In addition, normally closed contact 6b, 7b get final product for the contact that the electric current that provides to magnet stopper 2 has a sufficient energising performance.
Between magnet stopper 2 and drg power supply 3, be connected with two power supply connecting portions parallelly connectedly.More specifically, between magnet stopper 2 and drg power supply 3, the 1st open contact 5a1 of electromagnetic contactor 5 and the normally closed contact 6b of power relay 6 are connected in series.Further, between magnet stopper 2 and drg power supply 3, the 2nd open contact 5a2 of electromagnetic contactor 5 and the normally closed contact 7b of power relay 7 are connected in series.That is, open contact 5a1 and normally closed contact 6b constitute the 1st power supply connecting portion, and open contact 5a2 and normally closed contact 7b constitute the 2nd power supply connecting portion.The detection signal of brake service aware switch in addition, 4 sends to elevator control circuit 1.
The operation of this embodiment of such formation is described with reference to Fig. 2 and Fig. 3.Fig. 2 is the diagram of circuit that the drg control operation is shown.Fig. 3 is the operation timing figure of switching (OFF/ON) state of each contact of expression.When elevator went, through the 6 output excitation instructions of 1 pair of power relay of elevator control circuit, the normally closed contact 6b of power relay 6 became off-state (step S1).At this moment, because the open contact 5a1 of electromagnetic contactor 5 is off-states, therefore, do not produce the electrical load relevant at the normally closed contact 6b place of power relay 6, contact not loss of 6b with opening and closing operations.In addition, the normally closed contact 7b of power relay 7 is kept closed.
Then, through the 5 output excitation instructions of 1 pair of electromagnetic contactor of elevator control circuit, the open contact 5a1 of electromagnetic contactor 5 and 5a2 are closed, and via the normally closed contact 7b of power relay 7, drg power supply 3 is connected (step S2) with magnet stopper 2.Like this, magnet stopper 2 is released, and elevator becomes the state that can go.
At this moment, the open contact 5a2 of electromagnetic contactor 5 is owing to the closed circuit electrical load of bearing of circuit, therefore, and contact 5a2 loss.But the open contact 5a1 of electromagnetic contactor 5 and the normally closed contact 6b of power relay 6 (contact open a way 1 side) become closed circuit behind the closing of circuit that the open contact 5a2～normally closed contact 7b that is connected in parallel (contact open a way 2 sides) forms.Therefore, do not produce the electrical load relevant, contact not loss of 5a1 with opening and closing operations.
When going of elevator begins, meanwhile,, detect magnet stopper 2 and whether be released (step S3) according to signal from brake service aware switch 4.When detecting magnet stopper 2 and be released, elevator control circuit 1 stops the excitation instruction (step S4) to power relay 6.Like this, the normally closed contact 6b of power relay 6 becomes closure.At this moment, pass through the open contact 5a2 of electromagnetic contactor 5 and the normally closed contact 7b conducting of power relay 7 between drg power supply 3 and the magnet stopper 2.Therefore, do not produce the electrical load relevant at the normally closed contact 6b place of power relay 6, contact not loss of 6b with opening and closing operations.
In addition, in the time can not detecting magnet stopper 2 through brake service aware switch 4 and be released, elevator control circuit 1 stops the excitation instruction (step S5) of electromagnetic contactor 5.That is, come in contact bad and can not drive magnet stopper 2 time, elevator control circuit 1 stops the excitation instruction of electromagnetic contactor 5 as the open contact 5a2 of electromagnetic contactor 5.
Then, explain that elevator arrives the situation that the purpose floor stops.
Elevator control circuit 1 is when elevator stops, to power relay 6 output excitation instructions (step S6).Like this, the normally closed contact 6b of power relay 6 becomes off-state.At this moment, because the circuit (contact circuit 2 sides) that the open contact 5a2 that is connected in parallel～normally closed contact 7b forms, circuit remains closed.Therefore, the electrical load relevant with opening and closing operations do not take place, contact not loss of 6b.
Then, stop the excitation instruction through 1 pair of electromagnetic contactor 5 of elevator control circuit, the open contact 5a1 of electromagnetic contactor 5 and 5a2 break off, and the power supply of magnet stopper 2 provides and is cut off (step S7).Like this, braked by magnet stopper 2, elevator stops.At this moment, the open contact 5a2 of electromagnetic contactor 5 is owing to the open circuit of circuit is born electrical load, therefore, and contact 5a2 loss.But the open contact 5a1 of electromagnetic contactor 5 is opened a way through the normally closed contact 6b of power relay 6 in advance.Therefore, do not produce the electrical load relevant, contact not loss of 5a1 with opening and closing operations.
After elevator stopped, elevator control circuit 1 stopped the excitation instruction (step S8) to power relay 6.Like this, the normally closed contact 6b of power relay 6 becomes closure.At this moment, because the open contact 5a1 of electromagnetic contactor 5 is off-states, therefore, do not produce the electrical load relevant, contact not loss of 6b with opening and closing operations at the normally closed contact 6b of power relay 6.
As stated, for the open contact 5a2 of electromagnetic contactor 5, though follow opening and closing operations to produce electrical load,,, then do not produce the electrical load of following opening and closing operations for open contact 5a1.Further, for normally closed contact 6b, the 7b of power relay 6,7, do not produce the electrical load of following opening and closing operations yet.That is, in above-mentioned flow process, have only open contact 5a2 to be depleted.
In addition, when becoming the state of above-mentioned step S5, elevator control circuit 1 generation error information, and to outside output error message (step S9).Further, the operation timing of power switched relay 6 and power relay 7, the power supply that is carried out magnet stopper 2 by the circuit of open contact 5a1～normally closed contact 6b provides (contact circuit 1 side) (step S10).Then, relay 6 is replaced as relay 7 and implements previous step S1～S8.Like this, in the operation service that continues elevator, the mis-information that can utilize communication line to be generated to maintenance company circular.
In addition, for above-mentioned series of operation, as long as do not detect the unusual of magnet stopper 2, with regard to operand power relay 6, and power relay 7 is in halted state.But, even do not having under the unusual situation, also can be whenever at a distance from certain number of operations (the open contact 5a1 that electromagnetic contactor 5 carries out, the switching number of times of 5a2), the operation timing of power switched relay 6 and power relay 7.This is based on following reason.
In Fig. 2 and operation shown in Figure 3, the normally closed contact 7b of power relay 7 remains closed, and when the open contact 5a1 of closed electromagnetic contactless switch 5,5a2, before closure, breaks off the normally closed contact 6b of power relay 6.Further, when breaking off open contact 5a1,5a2, after breaking off, break off normally closed contact 6b.That is, normally closed contact 7b remains closed, and controls so that only switching the front and back certain hour of the switching of each open contact 5a1,5a2 through electromagnetic contactor 5, breaks off normally closed contact 6b.
Like this, follow the electrical load of opening and closing operations only to bear, can not bear electrical load at open contact 5a1 by open contact 5a2.If like this, then open contact 5a2 reaches the life-span than open contact 5a1 is more Zao always.Therefore, through the for example operation timing of per 100 power switched relays 6,7, can realize the equalization of the loss of open contact 5a1,5a2.Its result can realize the long lifetime of electromagnetic contactor 5.
Further, when taking place halfway when unusual, and at this constantly in the operation timing of power switched relay 6,7, output abnormality message.Like this, can elevator be stopped and replacing that carrying out electromagnetic contactor 5 is prepared.At this, the side generation of so-called open contact 5a1 at electromagnetic contactor 5,5a2 is bad to mean that the life-span of electromagnetic contactor 5 is approaching.Therefore, as stated, the replacing that receives unexpected message and carry out electromagnetic contactor 5 is prepared and can be changed according to the loss state of contact.Therefore, can guarantee the safety of elevator, and suppress the generation of unnecessary economical burden.
In addition, electromagnetic contactor 5 generally has a plurality of contacts, uses these contacts through parallel connection, and the electromagnetic contactor 5 of high price can be provided with a plurality of power supply linkage units.That is, in this embodiment, new electromagnetic contactor needn't be set, and can use existing electromagnetic contactor to constitute necessary circuit.Further, the power relay 56 with normally closed contact 6b is compared with electromagnetic contactor 5 with the power relay with normally closed contact 7b 7, is small-sized and sufficient, and these additional costs can suppress minimumly.
According to such embodiment; Open and close open contact 5a1, the 5a2 of the electromagnetic contactor 5 of usefulness through the magnet stopper power supply that is connected in parallel; Even come in contact in a side contact when bad, also can proceed the operation service of elevator through using the opposing party's contact.Further, circulate a notice of the unusual of bad contact, can carry out suitable prevention and save from damage, therefore, can reduce the service stopping time of elevator through carving at this moment to services company.
In addition,, can follow the contact 5a1 of power supply switching, the loss of 5a2, therefore, can stably obtain the performance of electromagnetic contactor 5 in a plurality of contacts equalization through every operation timing at a distance from certain number of operations power switched relay 6 and power relay 7.
Mode of texturing
In addition, the invention is not restricted to above-mentioned embodiment.Though in embodiment, adopt electromagnetic contactor,, so long as have a plurality of open contacts of synchronous switching and have sufficient cut-out ability and pressure-proof device, can replace using.Further, though adopt power relay in order to drive normally closed contact,, normally closed contact is not needed special cut-out ability, as long as have abundant energising performance.Therefore, also can use power relay various on-off elements in addition.
In addition, in embodiment, though be made as the circuit of two systems,,, also can constitute the circuit of 3 systems if electromagnetic contactor has 3 open contacts.In this case, 3 open contacts that between magnet stopper and drg power supply, are connected in parallel, each open contact is connected in series with a plurality of normally closed contacts respectively.Then, a contact in the normally closed contact is remained closed, and control so that remaining two contacts are only broken off certain hour in the front and back of the switching of switching each open contact through electromagnetic contactor and got final product.For situation with the open contact more than 4, also can be suitable equally.
Embodiment is just pointed out as an example, is not intended to limit scope of the present invention.New embodiment can other various forms be implemented, and in the scope that does not break away from main idea of the present invention, can carry out various omissions, displacement, change.This embodiment and distortion thereof are also contained in scope of the present invention and the main idea, and are also contained in the invention that the scope of claim puts down in writing and in the scope that is equal to.
Claims (7)
1. the arrester control device of an elevator is used for being controlled at the magnet stopper that the brake equipment of elevator uses, and it is characterized in that possessing:
A plurality of power supply linkage units, it is connected in parallel between above-mentioned magnet stopper and power supply; And
Control unit, it controls the operation timing of above-mentioned a plurality of power supply linkage units respectively.
2. the arrester control device of elevator according to claim 1 is characterized in that, also possesses:
Operation sense notice of invitation unit, the serviceability of the above-mentioned magnet stopper of its perception; And
The condition judgement unit, it judges the normal or unusual of above-mentioned power supply linkage unit according to the brake status of above-mentioned control unit to the above-mentioned magnet stopper of the state of a control of above-mentioned power supply linkage unit and aforesaid operations perception unit perception.
3. the arrester control device of elevator according to claim 2 is characterized in that,
When above-mentioned control unit is confirmed above-mentioned magnet stopper unusual in above-mentioned condition judgement unit, switch the operation timing of above-mentioned a plurality of power supply linkage units, and report above-mentioned judged result to the outside.
4. according to the arrester control device of any described elevator of claim 1 to 3, it is characterized in that, also possess:
Switch the unit of the operation timing of above-mentioned a plurality of power supply linkage units according to the number of operations of above-mentioned magnet stopper.
5. the arrester control device of an elevator is used for being controlled at the magnet stopper that the brake equipment of elevator uses, and it is characterized in that possessing:
Electromagnetic contactor, it has a plurality of open contacts of synchronous switching, and these open contacts are connected in parallel between above-mentioned magnet stopper and power supply;
A plurality of normally closed contacts, it is connected in series with above-mentioned each open contact respectively; And
Control circuit; It selects in above-mentioned a plurality of normally closed contact; The normally closed contact of this selection is remained closed; And control thus remaining normally closed contact only at the front and back of the switching of switching above-mentioned each open contact through above-mentioned electromagnetic contactor disconnection certain hour, and the switching number of times of above-mentioned each open contact that carries out according to above-mentioned electromagnetic contactor changes the normally closed contact of above-mentioned selection.
6. the arrester control device of elevator according to claim 5 is characterized in that, also possesses:
The condition judgement circuit, it judges the serviceability of above-mentioned magnet stopper when each open contact of the above-mentioned electromagnetic contactor of closure;
When above-mentioned control circuit is confirmed the operation exception of above-mentioned magnet stopper at above-mentioned condition judgement circuit, change the normally closed contact of above-mentioned selection, and unusual to outside report aforesaid operations.
7. according to the arrester control device of claim 5 or 6 described elevators, it is characterized in that above-mentioned normally closed contact is the contact by the power relay of above-mentioned control circuit control.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP159140/2010 | 2010-07-13 | ||
| JP2010159140A JP2012020825A (en) | 2010-07-13 | 2010-07-13 | Brake control device of elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102328887A true CN102328887A (en) | 2012-01-25 |
| CN102328887B CN102328887B (en) | 2014-12-24 |
Family
ID=45480886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110195899.3A Expired - Fee Related CN102328887B (en) | 2010-07-13 | 2011-07-13 | Control device for brake of elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2012020825A (en) |
| CN (1) | CN102328887B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555641A (en) * | 2013-10-11 | 2015-04-29 | 株式会社日立制作所 | Safety system of elevator |
| CN104692206A (en) * | 2013-12-03 | 2015-06-10 | 株式会社日立制作所 | Elevator maintenance inspection brake controller |
| CN104944246A (en) * | 2014-03-28 | 2015-09-30 | 刘守林 | Magneto-electric elevator speed governor |
| CN107601198A (en) * | 2016-07-11 | 2018-01-19 | 株式会社日立制作所 | Elevator |
| WO2023241329A1 (en) * | 2022-06-16 | 2023-12-21 | 苏州汇川控制技术有限公司 | Elevator non-isolated safety brake power supply and elevator equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522127A (en) * | 2017-09-14 | 2017-12-29 | 杭州优迈科技有限公司 | A kind of drive circuit of elevator brake |
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| CN1302276A (en) * | 1999-01-25 | 2001-07-04 | 三菱电机株式会社 | Elevator brake control device |
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| CN1553878A (en) * | 2002-07-10 | 2004-12-08 | 三菱电机株式会社 | Elevator controller |
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| CN101224831A (en) * | 2007-01-10 | 2008-07-23 | 株式会社日立制作所 | Elevator brake control device |
| CN201409106Y (en) * | 2009-03-17 | 2010-02-17 | 上海梅山钢铁股份有限公司 | Braking device for electrical motor contracting brake |
| CN101663219A (en) * | 2007-05-08 | 2010-03-03 | 三菱电机株式会社 | Brake control device for elevator |
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2010
- 2010-07-13 JP JP2010159140A patent/JP2012020825A/en not_active Withdrawn
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2011
- 2011-07-13 CN CN201110195899.3A patent/CN102328887B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302276A (en) * | 1999-01-25 | 2001-07-04 | 三菱电机株式会社 | Elevator brake control device |
| CN1553878A (en) * | 2002-07-10 | 2004-12-08 | 三菱电机株式会社 | Elevator controller |
| CN2586676Y (en) * | 2002-11-04 | 2003-11-19 | 李立忠 | Elevator power off emergency apparatus |
| CN101056813A (en) * | 2005-10-17 | 2007-10-17 | 三菱电机株式会社 | Elevator device |
| CN101164855A (en) * | 2006-10-20 | 2008-04-23 | 王秋楠 | Device for escaping elevator abnormal state |
| CN101164856A (en) * | 2006-10-20 | 2008-04-23 | 王秋楠 | Electric device for escaping elevator abnormal state |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555641A (en) * | 2013-10-11 | 2015-04-29 | 株式会社日立制作所 | Safety system of elevator |
| CN104692206A (en) * | 2013-12-03 | 2015-06-10 | 株式会社日立制作所 | Elevator maintenance inspection brake controller |
| CN104692206B (en) * | 2013-12-03 | 2017-11-03 | 株式会社日立制作所 | The maintenance overhaul arrester control device of elevator |
| CN104944246A (en) * | 2014-03-28 | 2015-09-30 | 刘守林 | Magneto-electric elevator speed governor |
| CN107601198A (en) * | 2016-07-11 | 2018-01-19 | 株式会社日立制作所 | Elevator |
| WO2023241329A1 (en) * | 2022-06-16 | 2023-12-21 | 苏州汇川控制技术有限公司 | Elevator non-isolated safety brake power supply and elevator equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102328887B (en) | 2014-12-24 |
| JP2012020825A (en) | 2012-02-02 |
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