CN102452594A - Insulation resistance measuring device for elevator - Google Patents
Insulation resistance measuring device for elevator Download PDFInfo
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- CN102452594A CN102452594A CN2010105256779A CN201010525677A CN102452594A CN 102452594 A CN102452594 A CN 102452594A CN 2010105256779 A CN2010105256779 A CN 2010105256779A CN 201010525677 A CN201010525677 A CN 201010525677A CN 102452594 A CN102452594 A CN 102452594A
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Abstract
The invention provides an insulation resistance measuring device for an elevator, which can be used for measuring the insulation resistance of a shared circuit without cutting the supply of power to a control device. A power supply terminal of a landing arranged in an elevator shaft is provided with a grounding terminal, a shared circuit grounding terminal, a shared power supply terminal, a detection resistor and a switching-on and off device; the grounding terminal is connected with a grounding wire; the shared circuit grounding terminal is connected with a grounding terminal of a control panel; the shared power supply terminal is connected with an alternating-current power supply of the control panel through a terminal; the detection resistor is connected between the grounding terminal and the circuit grounding terminal; one end of the switching-on and off device is connected with the grounding terminal, and the other end is movable; the switching-on and off device switches on when the other end thereof contact the circuit grounding terminal and switches off when other end thereof does not contact the circuit grounding terminal; a voltmeter is connected between the grounding terminal and the terminal and used for measuring the voltage drop of the resistor when the switching-on and off device switches off; and the voltage drop measurement result is used to calculating and measuring the insulation resistance of a shared circuit in the control device which is connected with the terminal of the control panel.
Description
Technical field
The present invention relates to elevator and use the insulation measurement device, in this elevator, in the hoistway that car goes up and down, be provided with towing machine and control panel and do not need machine room.
Background technology
In the past; As with this kind elevator with the relevant known technology of the method for measurement of insulation resistance; For example known have following " method of measurement of the insulation resistance of circuit ": a line that makes circuit is through switch circuit controller (switch) ground connection; To with the state of this circuit bonded assembly load supply power under, use insulating-resistance meter (being commonly referred to " megger (megger) ") to come the insulation resistance of sensing lead circuit.
Patent documentation 1: japanese kokai publication hei 6-331667 communique
Method of measurement about the insulation resistance of the related circuit of above-mentioned patent documentation 1; If be applied to the measurement of the insulation resistance of the common circuit in the control panel bonded assembly control setup with elevator, if the power supply of cutting control device can't measurement insulation resistance.
But, if cut off as stated the power supply of control setup is supplied with, then elevator can't provide operation service, and the passenger of use is forced in inconvenience, thereby is unfavorable.
In addition; Under current social situation; On ordinary days or the operation service that stops elevator daytime in general be extremely difficult, even such thing for the main flow that becomes present elevator, towing machine is set with control panel and not need the elevator of type of machine room also be the same in hoistway.
Summary of the invention
The present invention accomplishes in view of such problem, its technical task be to provide a kind of need not to cut off the power supply of control setup supplied with the elevator that just can measure the insulation resistance in the common circuit use the insulation measurement device.
In order to reach above-mentioned technical task; The related invention of first aspect of the present invention is that a kind of elevator is used the insulation measurement device; In this elevator, in the hoistway that car goes up and down, be provided with towing machine and control panel, and this elevator does not need machine room; Wherein, said elevator comprises with the insulation measurement device: the stop terminals for power supplies portion that is arranged at the stop adjacent with said hoistway; And through lead and said stop terminals for power supplies portion bonded assembly potentiometer, said stop terminals for power supplies portion has: the source of AC through lead and said control panel is with terminal bonded assembly common source terminal; Earth terminal bonded assembly circuit ground terminal through lead and said control panel; Grounding jumper bonded assembly earth terminal with said hoistway; Intervention is connected the detection resistance between said earth terminal and the said circuit ground terminal; And switch circuit controller; Distolateral and the said earth terminal of one of which is connected; And another distolateral can be movable; Said switch circuit controller is closed under the state of its another distolateral and said circuit ground termination contact, and under contactless state, breaks off, and said potentiometer intervention is connected between said earth terminal and the said circuit ground terminal; And the loss in voltage of the said detection resistance of instrumentation under the off-state of said switch circuit controller, said instrumentation result is used for calculating the insulation resistance of the common circuit of measuring the said earth terminal bonded assembly control setup that passes through lead and said control panel.
In addition; The invention that second aspect of the present invention relates to is that a kind of elevator is used the insulation measurement device; In this elevator, in the hoistway that car goes up and down, be provided with towing machine and control panel, and this elevator does not need machine room; Wherein, said elevator comprises with the insulation measurement device: the stop terminals for power supplies portion that is arranged at the stop adjacent with said hoistway; And through lead and said stop terminals for power supplies portion bonded assembly insulation resistance measurement circuit, said stop terminals for power supplies portion has: the source of AC through lead and said control panel is with terminal bonded assembly common source terminal; Earth terminal bonded assembly circuit ground terminal through lead and said control panel; Grounding jumper bonded assembly earth terminal with said hoistway; Intervention is connected the detection resistance between said earth terminal and the said circuit ground terminal; And switch circuit controller; Distolateral and the said earth terminal of one of which is connected; And another distolateral can be movable; Said switch circuit controller is closed under the state of its another distolateral and said circuit ground termination contact, and disconnection under contactless state, and said insulation resistance measurement circuit comprises: the direction change-over switch; It is connected with the common source terminal of an electrode side of said common source terminal through lead, and is connected with oppositely directed each other a pair of rectifier in the terminals side of the two-way contact of this direction change-over switch; Filter circuit, it is connected with the common source terminal of another electrode side of said common source terminal through lead; Detect resistance, distolateral and said a pair of rectifier of one of which and said filter circuit are connected; Force grounding resistance, the distolateral and said detection resistance of one of which is connected, and another distolateral and said earth terminal is connected; And potentiometer; Its intervention is connected the distolateral with another is distolateral of said detection resistance; The loss in voltage of said potentiometer said detection resistance of the said insulation resistance measurement circuit of instrumentation under the closure state of said switch circuit controller, said instrumentation result is used for calculating the insulation resistance of the said source of AC of measurement and said control panel with the common circuit of terminal bonded assembly control setup.
In addition; The related invention of the third aspect of the invention is that a kind of elevator is used the insulation measurement device; In this elevator, in the hoistway that car goes up and down, be provided with towing machine and control panel, and this elevator does not need machine room; Wherein, said elevator comprises with the insulation measurement device: the terminals for power supplies portion that is equipped on said control panel; And through lead and said terminals for power supplies portion bonded assembly potentiometer; Said terminals for power supplies portion uses terminal to be the common source terminal with the source of AC of said control panel; And the earth terminal with this control panel is the circuit ground terminal, and said terminals for power supplies portion has: with the grounding jumper bonded assembly earth terminal of said hoistway; Intervention is connected the detection resistance between said earth terminal and the said circuit ground terminal; And switch circuit controller; Distolateral and the said earth terminal of one of which is connected; And another distolateral can be movable; Said switch circuit controller is closed under the state of its another distolateral and said circuit ground termination contact, and under contactless state, breaks off, and said potentiometer intervention is connected between said earth terminal and the said circuit ground terminal; And the loss in voltage of the said detection resistance of instrumentation under the off-state of said switch circuit controller, said instrumentation result is used for calculating the insulation resistance of measuring through the common circuit of lead and said circuit ground terminal bonded assembly control setup.
In addition; The invention that fourth aspect of the present invention relates to is that a kind of elevator is used the insulation measurement device; In this elevator, in the hoistway that car goes up and down, be provided with towing machine and control panel, and this elevator does not need machine room; Wherein, said elevator comprises with the insulation measurement device: the terminals for power supplies portion that is equipped on said control panel; And through lead and said terminals for power supplies portion bonded assembly insulation resistance measurement circuit; Said terminals for power supplies portion uses terminal to be the common source terminal with the source of AC of said control panel; And the earth terminal with this control panel is the circuit ground terminal, and said terminals for power supplies portion has: with the grounding jumper bonded assembly earth terminal of said hoistway; Intervention is connected the detection resistance between said earth terminal and the said circuit ground terminal; And switch circuit controller; Distolateral and the said earth terminal of one of which is connected; And another distolateral can be movable; Said switch circuit controller is closed under the state of its another distolateral and said circuit ground termination contact, and disconnection under contactless state, and said insulation resistance measurement circuit comprises: the direction change-over switch; It is connected with the common source terminal of an electrode side of said common source terminal through lead, and is connected with oppositely directed each other a pair of rectifier in the terminals side of the two-way contact of this direction change-over switch; Filter circuit, it is connected with the common source terminal of another electrode side of said common source terminal through lead; Detect resistance, distolateral and said a pair of rectifier of one of which and said filter circuit are connected; Force grounding resistance, the distolateral and said detection resistance of one of which is connected and another distolateral and said earth terminal is connected; And potentiometer; Its intervention is connected the distolateral with another is distolateral of said detection resistance; The loss in voltage of said potentiometer said detection resistance of the said insulation resistance measurement circuit of instrumentation under the closure state of said switch circuit controller, said instrumentation result is used for calculating the insulation resistance of measuring with the common circuit of said common source terminal bonded assembly control setup.
The present invention can not make under the situation that elevator stops not cutting off the power supply of control setup supplied with; Under the state of keeping basic action and function, calculate the insulation resistance of the common circuit in the measuring and controlling; Therefore; Can not force inconvenience, can improve elevator to using passenger's operation service property with comparing in the past the user of elevator.In addition owing to can measurement mechanism be arranged at stop according to the facility environment of elevator; Perhaps be arranged in the hoistway; Carry out the calculating of the insulation resistance of the common circuit in the control setup and measure, therefore also have the excellent advantage of convenience in the maintenance inspection process of service personnel.
Description of drawings
Fig. 1 is the figure of the related elevator of expression embodiments of the invention 1 with the schematic configuration of insulation measurement device.
Fig. 2 representes and elevator shown in Figure 1 circuit diagram with the schematic configuration of the control panel bonded assembly control setup of insulation measurement device.
Fig. 3 is the figure of the elevator that relates to of expression embodiments of the invention 2 with the schematic configuration of insulation measurement device.
Fig. 4 is the figure of the related elevator of expression embodiments of the invention 3 with the schematic configuration of insulation measurement device.
Fig. 5 is the figure of the related elevator of expression embodiments of the invention 4 with the schematic configuration of insulation measurement device.
The specific embodiment
Below, enumerate some embodiment, with reference to accompanying drawing elevator of the present invention is elaborated with the insulation measurement device.
[embodiment 1]
Fig. 1 is the figure of the related elevator of expression embodiments of the invention 1 with the schematic configuration of insulation measurement device.In addition, Fig. 2 is expression and the circuit diagram of this elevator with the schematic configuration of the control panel 1-2 of insulation measurement device, 2-2 bonded assembly control setup.
As shown in Figure 1, this embodiment 1 related elevator is applied to and establishes elevator with the insulation measurement device.In Fig. 1, about being marked with each several part, the hoistway of a machine of label 1 expression with reference to label; Label 1-1 representes the towing machine of a machine, and label 1-2 representes the control panel of a machine, and label 1-3 representes the main rope of a machine; Label 1-4 representes the car of a machine; Label 1-5 representes the counterweight of a machine, and label 1-6 representes the energy disperser of a machine, and label 1-7 representes the stop of a machine.About the hoistway 1 here, car 1-4 goes up and down in this hoistway 1, is the type that in hoistway 1, is provided with towing machine 1-1 and control panel 1-2.
In addition, in the circuit of the control setup of Fig. 2, label 1-8 representes the electric power converter of a machine; Label S1 representes the power supply of a machine, and label FFB1 representes the power supply master cutter of a machine, and label Ry1 representes the running relay contact of a machine; Label Tr1 representes that the power supply of a machine detects voltage transformer, and label FFB1-1 representes the cutter of voltage detecting transformer Tr1, and label Do representes rectifier; Label Ry0 representes that power supply detects relay; Label So representes common source portion, and label Tr2, Tr3 represent the common source voltage transformer, and label FFB1-2 representes the common source cutter; Label Ry0-1 representes that power supply detects connection (make) contact of relay R y0; Label Ry0-2 representes that power supply detects the break of relay R y0, and label AVR1, AVR2 represent a machine and No. two shared constant voltage power suspplys of machine, and label Sw representes a machine and No. two shared ac power switch of machine; Label C1～C3 representes a machine and No. two shared common circuits of machine; Label T1, T2 represent that the source of AC of the control panel 1-2 that machine and No. two machines are shared uses terminal, and label E1 representes the earth terminal of control panel 1-2, and label E0 representes and carries out ground connection GD bonded assembly grounding jumper L0 bonded assembly earth terminal.
In addition, with reference to Fig. 1, this elevator with the insulation measurement device in, be provided with stop terminals for power supplies portion 3 and carrying out bonded assembly potentiometer V through lead with hoistway 1 adjacent stop 1-7 with this stop terminals for power supplies portion 3.In stop terminals for power supplies portion 3; Label E0 representes and carries out ground connection GD bonded assembly grounding jumper L0 bonded assembly earth terminal; Label T3 representes to be connected with the earth terminal E1 of control panel 1-2 and the circuit ground terminal shared with circuit through lead L1; Label T4, T5 represent source of AC through lead L1 and control panel 1-2 with terminal T1, T2 bonded assembly common source terminal, and label R1 representes to get involved the detection resistance that is connected between earth terminal E0 and the circuit ground terminal T3, and label B representes switch circuit controller; One of this switch circuit controller B distolaterally is connected with earth terminal E0; And opposite side can be movable, and this switch circuit controller B is closed under its another distolateral and circuit ground terminal T3 state of contact, and disconnection under contactless state.
Potentiometer V gets involved and is connected between earth terminal E0 and the circuit ground terminal T3, and instrumentation detects the loss in voltage of resistance R 1 under the off-state of switch circuit controller B.This instrumentation result is used for measuring through the calculating of the insulation resistance of the common circuit C1 of the earth terminal E1 bonded assembly control setup of lead and control panel 1-2, C2.
In addition, the structure of No. two machines is carried out the bonded assembly circuit ground terminal E2 through lead L2 except control panel 2-2 has from the circuit ground terminal T3 of control panel 1-2, and is roughly the same with a machine, and makes the corresponding each other and omission explanation with reference to label.
Promptly; When for when in hoistway 1,2, being provided with the elevator that towing machine 1-1,2-1, car 1-4,2-4, control panel 1-2,2-2 wait the control of turning round; Through the power supply S1 in the control setup, S2, power supply master cutter FFB1, FFB2, running relay contact Ry1, Ry2, the So of common source portion, electric power converter 1-8,2-8; Control towing machine 1-1,2-1 via control panel 1-2,2-2, thereby control operation.
In control setup; In the So of common source portion; When loss of power S1, detect the forfeiture that relay R y0 detects power supply S1 through power supply detection voltage transformer Tr1, rectifier Do, power supply, the break Ry0-2 that detects relay R y0 through power supply connects common source voltage transformer Tr3; Keep shared constant voltage power suspply AVR1, AVR2 (that is, shared source of AC).Thus, common circuit C1～C3 normal operation, car 2-4 normally works.
Like this; In control setup, lose a power supply S1 even constitute, another power supply S2 also can normally work and turn round; Therefore; About the inspection of annual obligation enforcement, the insulation measurement of so-called common circuit C1～C3, if stop terminals for power supplies portion that states after not adopting 3 and potentiometer V generally are that the power supply supply of not cutting off two sides just can't be implemented.In addition, particularly in hoistway 1,2, have in the elevator of no machine room type of towing machine 1-1,2-1 and control panel 1-2,2-2 etc.,, then can't implement inspection (insulation measurement) if service personnel does not get in the hoistway 1,2.
Relative therewith; The related elevator of embodiment 1 with the insulation measurement device in; Can carry out under the power supply condition of supplying control setup in continuation, use the stop terminals for power supplies portion 3 and potentiometer V that are arranged at stop 1-7, calculate the insulation resistance of measuring common circuit C1, C2.
Specifically, through with stop terminals for power supplies portion 3 in circuit ground terminal T3 and earth terminal E0 bonded assembly potentiometer V, make switch circuit controller B become the value that off-state and instrumentation detect the loss in voltage of resistance R 1 and be used as measured voltage values V2.According to measured voltage values V2, calculate the common circuit C1 in the measuring and controlling, the insulating resistance value R of C2 as this instrumentation result.
Promptly; Between measured voltage values V2 and insulating resistance value R,, then there is following relational expression to set up: R=V1R11/V2-R11 in that to make V1 be common circuit power source voltage value, R11 is detected under the situation of resistance value of resistance R 1; Therefore, can obtain insulating resistance value R according to measured voltage values V2.
Like this; Use the insulation measurement device according to embodiment 1 related elevator, the power supply that need not to cut off control setup is supplied with, and just can carry out the calculating of the insulation resistance of common circuit C1, C2 and measure; Therefore, can not diminish fundamental operation and the function of common circuit C1, C2.Therefore, just can carry out the calculating measurement of the insulation resistance of common circuit C1, C2 at stop 1-7 owing to need not to stop the operation of elevator, therefore, service personnel need not enter in the hoistway 1,2, can avoid inconvenience is forced at user's situation.Its result is can improve the operation service property of elevator to the use passenger, and improve and safeguard the convenience of people in the maintenance inspection process.
[embodiment 2]
Fig. 3 is the figure of the related elevators insulation of expression embodiments of the invention 2 with the schematic configuration of electric resistance measuring apparatus.
The insulation resistance measurement circuit 10 here comprises: the direction change-over switch SW1 that is connected and is connected with in the terminals side of two-way contact oppositely directed each other a pair of rectifier D-1, D-2 through lead with the common source terminal T4 of an electrode side; Common source terminal T5 bonded assembly filter circuit 10-1 through lead and another electrode side; One distolateral and a pair of rectifier D-1, D-2 and filter circuit 10-1 bonded assembly detect resistance R 1; One distolateral the connection with detection resistance R 1 and another earth terminal E0 bonded assembly pressure grounding resistance R2 distolateral and stop terminals for power supplies portion 3; And intervention is connected distolateral and another the distolateral potentiometer V that detects resistance R 1.The loss in voltage of the detection resistance R 1 of instrumentation insulation resistance measurement circuit 10 under the closure state of switch circuit controller B of the potentiometer V here.This instrumentation result is used for measuring with the calculating of the insulation resistance of the common circuit C3 of terminal T1, T2 bonded assembly control setup with the source of AC of control panel 1-2.
In addition, in direction change-over switch Sw1,, an end a is connected with the common source terminal T4 of stop terminals for power supplies portion 3, other end b is connected with rectifier D1, make it outer other end c and be connected with rectifier D2 as the terminal of two-way contact.Filter circuit 10-1 has used the known circuit structures such as lc circuit that the two ends of device G such as cond coupled together through device H such as coils; The end of filter circuit 10-1 is connected with the common source terminal T5 of stop terminals for power supplies portion 3, and the other end is connected with rectifier D-1, D-2 and detection resistance R 1.This detection resistance R 1 is connected in series with forcing grounding resistance R2, and this detection resistance R 1 is connected in parallel with potentiometer V.Forcing grounding resistance R2 to be connected with the earth terminal E0 of stop terminals for power supplies portion 3.
In such stop terminals for power supplies portion 3, be connected with in the structure of the insulation resistance measurement circuit 10 that contains potentiometer V; Use the common circuit C3 in terminal T1, the T2 bonded assembly control setup to be object with source of AC with control panel 1-2; The insulation that under the closure state of switch circuit controller B, forms common circuit C3 reduce point, with from the grounding jumper bonded assembly earth terminal E0 of ground connection GD, force grounding resistance R2, detect the path of resistance R 1 and filter circuit 10-1; And flow through electric current; Therefore; Come the loss in voltage of the detection resistance R 1 in the instrumentation insulation resistance measurement circuit 10 to obtain measured voltage values V2 through potentiometer V, can calculate the insulating resistance value R of the common circuit C3 that measures in the control setup according to this measured voltage values V2.
Promptly; Between measured voltage values V2 and insulating resistance value R; In that to make V1 be common circuit power source voltage value, make R11 is the resistance value that detects resistance R 1, R21 is forced under the situation of resistance value of grounding resistance R2; Then have following relational expression to set up: R=V1R11/V2-(R11+R21) therefore, can calculate insulating resistance value R according to measured voltage values V2.
In addition; In direction change-over switch SW1; Terminal a with respect to rectifier D1 bonded assembly terminal b, or be connected with respect to can at random switching with rectifier D2 bonded assembly terminal c; Wherein, it is opposite with rectifier D1 that rectifier D2 is adapted to polarity, also can measure for another insulation reduction point of common circuit C3.
Like this; Electric resistance measuring apparatus is used in 2 related elevator insulation according to embodiment; Can calculate the insulation resistance of measuring common circuit C3 as half wave rectification power supply, have the action effect identical with the situation of embodiment 1 based on the selected rectifier D1 of direction of passage change-over switch SW1, D2 and filter circuit 10-1.
In addition; The structure of above-mentioned each embodiment for hoistway 1 adjacent stop 1-7 have stop terminals for power supplies portion 3 and with 3 bonded assembly potentiometer V of this stop terminals for power supplies portion or insulation resistance measurement circuit 10; But, sometimes can the narrow space that is difficult to guarantee to be provided with measurement mechanism according to the different stop 1-7 of the facility environment of elevator.Under these circumstances, preferably measurement mechanism is arranged on the insulation resistance that calculates the common circuit C1～C3 in the measuring and controlling in the hoistway 1, therefore, among each embodiment below dependency structure is described.
[embodiment 3]
Fig. 4 is the figure of the related elevator of expression embodiments of the invention 3 with the schematic configuration of insulation measurement device.
The related elevator of embodiment 3 is with in the insulation measurement device; To be configured among the control panel 1-2 that is located at a machine in the hoistway 1 with the terminals for power supplies portion of related stop terminals for power supplies portion 3 same structures of embodiment shown in Figure 11, the principle of measurement then situation with embodiment 1 is identical.
Promptly; The terminals for power supplies portion that is disposed at control panel 1-2 here uses terminal T1, T2 to be the common source terminal with the source of AC of control panel 1-2; And as circuit ground terminal T3 ', this terminals for power supplies portion comprises: with the grounding jumper L0 bonded assembly earth terminal E0 ' of hoistway 1 with the earth terminal E1 of control panel 1-2 shown in Figure 1; Intervention is connected the detection resistance R 1 between earth terminal E0 ' and the circuit ground terminal T3 '; And switch circuit controller B ', one of which is distolateral to be connected with earth terminal E0 ', and another distolateral can be movable, this switch circuit controller B ' is closed under another distolateral and circuit ground terminal T3 ' state of contact, and disconnection under contactless state.
In addition, the potentiometer V here gets involved and is connected between earth terminal E0 ' and the circuit ground terminal T3 ', and instrumentation detects the loss in voltage of resistance R 1 under the off-state of switch circuit controller B '.This instrumentation result is used for calculating and measures through lead and the common circuit C1 of circuit ground terminal T3 ' bonded assembly control setup, the insulation resistance of C2.
Measuring process is described below: service personnel gets in the hoistway 1 of a machine; A dynamo-electric ladder is stopped (still; It still is on-state that the power supply of control setup is supplied with); Potentiometer V is connected between the circuit ground terminal T3 ' and earth terminal E0 ' that is provided with among the control panel 1-2 of a machine in being located at hoistway 1; Make switch circuit controller B ' be off-state, measure measured voltage values V2, calculate the insulating resistance value R that measures common circuit C1, C2 according to the relational expression of explaining among the embodiment 1 as the value of the loss in voltage that detects resistance R 1 through potentiometer V.
Like this; Under the situation of the structure of embodiment 3; In service personnel need enter into hoistway 1; All the other are identical with the situation of the above embodiments 1, need not to cut off the power supply of control setup is supplied with the insulation resistance that just can calculate measurement common circuit C1, C2, and elevator is all stopped.
[embodiment 4]
Fig. 5 is the figure of the related elevator of expression embodiments of the invention 4 with the schematic configuration of insulation measurement device.
The related elevator of embodiment 4 is configured in the control panel 1-2 that is arranged at a machine in the hoistway 1 with the terminals for power supplies portion of stop terminals for power supplies portion 3 same structures that the insulation measurement device will relate to embodiment 2 shown in Figure 2; And connected insulation resistance measurement circuit 10, and principle of measurement is identical with the situation of embodiment 2 with spline structure.
Promptly; The terminals for power supplies portion that is disposed at control panel 1-2 here be with previous embodiment 3 in the identical structure of situation explained; Its source of AC with control panel 1-2 uses terminal T1, T2 to be the common source terminal; And as circuit ground terminal T3 ', this terminals for power supplies portion comprises: with the grounding jumper L0 bonded assembly earth terminal E0 ' of hoistway 1 with the earth terminal E1 of control panel 1-2 shown in Figure 1; Intervention is connected the detection resistance R 1 between earth terminal E0 ' and the circuit ground terminal T3 '; And switch circuit controller B ', one of which is distolateral to be connected with earth terminal E0 ', and another distolateral can be movable, this switch circuit controller B ' is closed under another distolateral and circuit ground terminal T3 ' state of contact, and disconnection under contactless state.
In addition, the loss in voltage of potentiometer V detection resistance R 1 of instrumentation insulation resistance measurement circuit 10 under the closure state of switch circuit controller B ' of insulation resistance measurement circuit 10 here.This instrumentation result be used for calculating measure with as the source of AC of common source terminal insulation resistance with the common circuit C3 of terminal T1, T2 bonded assembly control setup.
Measuring process is described below: the same with the situation of embodiment 3; Service personnel gets in the hoistway 1 of a machine; A dynamo-electric ladder is stopped (still; It still is on-state that the power supply of control setup is supplied with), the end a of the direction change-over switch SW1 that contains in the insulation resistance measurement circuit 10 is connected to as the source of AC of common source terminal uses terminal T1, other end b is connected to rectifier D1; And the end of filter circuit 10-1 is connected to as the source of AC of common source terminal uses terminal T2, will force grounding resistance R2 to be connected to earth terminal E0 '.In addition, connect rectifier D1, D2 in advance and detect resistance R 1, be connected in series in advance and force grounding resistance R2 with respect to detecting resistance R 1 at the other end of filter circuit 10-1, and with respect to detecting the resistance R 1 potentiometer V that is connected in parallel.The two ends of filter circuit 10-1 are maintained voltage V0.
That is, in insulation resistance measurement circuit 10, generally be the form that each one is equipped on substrate etc., therefore, need carry out the connection at bonded assembly position with respect to the control panel 1-2 that is equipped with potentiometer V or terminals for power supplies portion as long as carry out.
In a word; Here also be to use the common circuit C3 in terminal T1, the T2 bonded assembly control setup to be object with source of AC with control panel 1-2; The insulation that under the closure state of switch circuit controller B ', forms common circuit C3 reduce point, with from the grounding jumper bonded assembly earth terminal E0 ' of ground connection GD, force grounding resistance R2, detect the path of resistance R 1 and filter circuit 10-1; And flow through electric current; Therefore; Come the loss in voltage of the detection resistance R 1 in the instrumentation insulation resistance measurement circuit 10 to obtain measured voltage values V2 through potentiometer V, can calculate the insulating resistance value R of the common circuit C3 that measures in the control setup according to this measured voltage values V2 based on the relational expression of explaining among the embodiment 2.
Like this; Under the situation of the structure of embodiment 4, in service personnel need enter into hoistway 1, all the other are identical with the situation of the above embodiments 2; Need not to cut off the power supply of control setup is supplied with the insulation resistance that just can calculate measurement common circuit C3, and elevator is all stopped.
Claims (4)
1. an elevator is used the insulation measurement device, in this elevator, in the hoistway that car goes up and down, is provided with towing machine and control panel, and this elevator do not need machine room, it is characterized in that,
Said elevator comprises with the insulation measurement device: the stop terminals for power supplies portion that is arranged at the stop adjacent with said hoistway; And through lead and said stop terminals for power supplies portion bonded assembly potentiometer,
Said stop terminals for power supplies portion has: the source of AC through lead and said control panel is with terminal bonded assembly common source terminal; Earth terminal bonded assembly circuit ground terminal through lead and said control panel; Grounding jumper bonded assembly earth terminal with said hoistway; Intervention is connected the detection resistance between said earth terminal and the said circuit ground terminal; And switch circuit controller, the distolateral and said earth terminal of one of which is connected, and another distolateral can be movable, said switch circuit controller is in the state of its another distolateral and said circuit ground termination contact closure down, and disconnection under contactless state,
Said potentiometer is got involved and is connected between said earth terminal and the said circuit ground terminal, and under the off-state of said switch circuit controller the loss in voltage of the said detection resistance of instrumentation,
Said instrumentation result is used for calculating the insulation resistance of the common circuit of measuring the said earth terminal bonded assembly control setup that passes through lead and said control panel.
2. an elevator is used the insulation measurement device, in this elevator, in the hoistway that car goes up and down, is provided with towing machine and control panel, and this elevator do not need machine room, it is characterized in that,
Said elevator comprises with the insulation measurement device: the stop terminals for power supplies portion that is arranged at the stop adjacent with said hoistway; And through lead and said stop terminals for power supplies portion bonded assembly insulation resistance measurement circuit,
Said stop terminals for power supplies portion has: the source of AC through lead and said control panel is with terminal bonded assembly common source terminal; Earth terminal bonded assembly circuit ground terminal through lead and said control panel; Grounding jumper bonded assembly earth terminal with said hoistway; Intervention is connected the detection resistance between said earth terminal and the said circuit ground terminal; And switch circuit controller, the distolateral and said earth terminal of one of which is connected, and another distolateral can be movable, said switch circuit controller is in the state of its another distolateral and said circuit ground termination contact closure down, and disconnection under contactless state,
Said insulation resistance measurement circuit comprises: the direction change-over switch; It is connected with the common source terminal of an electrode side of said common source terminal through lead, and is connected with oppositely directed each other a pair of rectifier in the terminals side of the two-way contact of this direction change-over switch; Filter circuit, it is connected with the common source terminal of another electrode side of said common source terminal through lead; Detect resistance, distolateral and said a pair of rectifier of one of which and said filter circuit are connected; Force grounding resistance, the distolateral and said detection resistance of one of which is connected and another distolateral and said earth terminal is connected; And potentiometer, its intervention is connected the distolateral with another is distolateral of said detection resistance,
The loss in voltage of said potentiometer said detection resistance of the said insulation resistance measurement circuit of instrumentation under the closure state of said switch circuit controller,
Said instrumentation result is used for calculating the insulation resistance of the said source of AC of measurement and said control panel with the common circuit of terminal bonded assembly control setup.
3. an elevator is used the insulation measurement device, in this elevator, in the hoistway that car goes up and down, is provided with towing machine and control panel, and this elevator do not need machine room, it is characterized in that,
Said elevator comprises with the insulation measurement device: the terminals for power supplies portion that is equipped on said control panel; And through lead and said terminals for power supplies portion bonded assembly potentiometer,
Said terminals for power supplies portion uses terminal to be the common source terminal with the source of AC of said control panel, and is the circuit ground terminal with the earth terminal of this control panel, and said terminals for power supplies portion has: with the grounding jumper bonded assembly earth terminal of said hoistway; Intervention is connected the detection resistance between said earth terminal and the said circuit ground terminal; And switch circuit controller, the distolateral and said earth terminal of one of which is connected, and another distolateral can be movable, said switch circuit controller is in the state of its another distolateral and said circuit ground termination contact closure down, and disconnection under contactless state,
Said potentiometer is got involved and is connected between said earth terminal and the said circuit ground terminal, and under the off-state of said switch circuit controller the loss in voltage of the said detection resistance of instrumentation,
Said instrumentation result is used for calculating the insulation resistance of measuring through the common circuit of lead and said circuit ground terminal bonded assembly control setup.
4. an elevator is used the insulation measurement device, in this elevator, in the hoistway that car goes up and down, is provided with towing machine and control panel, and this elevator do not need machine room, it is characterized in that,
Said elevator comprises with the insulation measurement device: the terminals for power supplies portion that is equipped on said control panel; And through lead and said terminals for power supplies portion bonded assembly insulation resistance measurement circuit,
Said terminals for power supplies portion uses terminal to be the common source terminal with the source of AC of said control panel, and is the circuit ground terminal with the earth terminal of this control panel, and said terminals for power supplies portion has: with the grounding jumper bonded assembly earth terminal of said hoistway; Intervention is connected the detection resistance between said earth terminal and the said circuit ground terminal; And switch circuit controller, the distolateral and said earth terminal of one of which is connected, and another distolateral can be movable, said switch circuit controller is in the state of its another distolateral and said circuit ground termination contact closure down, and disconnection under contactless state,
Said insulation resistance measurement circuit comprises: the direction change-over switch; It is connected with the common source terminal of an electrode side of said common source terminal through lead, and is connected with oppositely directed each other a pair of rectifier in the terminals side of the two-way contact of this direction change-over switch; Filter circuit, it is connected with the common source terminal of another electrode side of said common source terminal through lead; Detect resistance, distolateral and said a pair of rectifier of one of which and said filter circuit are connected; Force grounding resistance, the distolateral and said detection resistance of one of which is connected and another distolateral and said earth terminal is connected; And potentiometer, its intervention is connected the distolateral with another is distolateral of said detection resistance,
The loss in voltage of said potentiometer said detection resistance of the said insulation resistance measurement circuit of instrumentation under the closure state of said switch circuit controller,
Said instrumentation result is used for calculating the insulation resistance of measuring with the common circuit of said common source terminal bonded assembly control setup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105256779A CN102452594A (en) | 2010-10-27 | 2010-10-27 | Insulation resistance measuring device for elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105256779A CN102452594A (en) | 2010-10-27 | 2010-10-27 | Insulation resistance measuring device for elevator |
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| Publication Number | Publication Date |
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| CN102452594A true CN102452594A (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105256779A Pending CN102452594A (en) | 2010-10-27 | 2010-10-27 | Insulation resistance measuring device for elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698127A (en) * | 2016-11-24 | 2017-05-24 | 上海交通大学 | Method and device for monitoring resistances of elevator tensioning components |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06331667A (en) * | 1993-05-27 | 1994-12-02 | Hitachi Building Syst Eng & Service Co Ltd | Measuring method for insulation resistance of cable way |
| JPH09288135A (en) * | 1996-04-23 | 1997-11-04 | Mitsubishi Denki Bill Techno Service Kk | Measuring apparatus for elevator control panel |
| JP2002214278A (en) * | 2001-01-22 | 2002-07-31 | Toshiba Corp | Apparatus for diagnosing high voltage machinery and diagnostic method using the same |
| CN1518518A (en) * | 2002-04-12 | 2004-08-04 | 东芝电梯株式会社 | Elevator maintenance system |
| JP2008239324A (en) * | 2007-03-28 | 2008-10-09 | Hitachi Building Systems Co Ltd | Insulation resistance measuring method of elevator |
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2010
- 2010-10-27 CN CN2010105256779A patent/CN102452594A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06331667A (en) * | 1993-05-27 | 1994-12-02 | Hitachi Building Syst Eng & Service Co Ltd | Measuring method for insulation resistance of cable way |
| JPH09288135A (en) * | 1996-04-23 | 1997-11-04 | Mitsubishi Denki Bill Techno Service Kk | Measuring apparatus for elevator control panel |
| JP2002214278A (en) * | 2001-01-22 | 2002-07-31 | Toshiba Corp | Apparatus for diagnosing high voltage machinery and diagnostic method using the same |
| CN1518518A (en) * | 2002-04-12 | 2004-08-04 | 东芝电梯株式会社 | Elevator maintenance system |
| JP2008239324A (en) * | 2007-03-28 | 2008-10-09 | Hitachi Building Systems Co Ltd | Insulation resistance measuring method of elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698127A (en) * | 2016-11-24 | 2017-05-24 | 上海交通大学 | Method and device for monitoring resistances of elevator tensioning components |
| CN106698127B (en) * | 2016-11-24 | 2022-06-07 | 上海交通大学 | Method and device for monitoring resistance of tension member of elevator |
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Application publication date: 20120516 |