CN105731202A - Apparatus for diagnosing cooling fan for elevator and method for diagnosing - Google Patents
Apparatus for diagnosing cooling fan for elevator and method for diagnosing Download PDFInfo
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- CN105731202A CN105731202A CN201510982762.0A CN201510982762A CN105731202A CN 105731202 A CN105731202 A CN 105731202A CN 201510982762 A CN201510982762 A CN 201510982762A CN 105731202 A CN105731202 A CN 105731202A
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- temperature
- cooling fan
- elevator
- state
- regulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The invention provides an apparatus for diagnosing a cooling fan for an elevator and a method for diagnosing which can determine a state of the cooling fan on the basis of the temperature of a cooling object of the cooling fan, i.e., the temperature of a determined apparatus. The cooling fan (204A, 204B) cools a determined apparatus (203) of which the temperature changes along with the operation condition of an elevator car (105). An elevator control apparatus (201) includes: a temperature predicting part (208) which predicts the temperature of the determined apparatus based on the operation condition of the elevator car; and a state determining part (209) which compares a detection temperature obtained by a temperature detector (205) detects the temperature of the determined apparatus with a predicting temperature predicted by the temperature predicting part and determines the state of the cooling fan. A report transmitting part (210) transmits a service life of the determined apparatus predicted by a service life predicting part and a state of the cooling fan determined by an abnormity determining part to the outside.
Description
Technical field
The present invention relates to the diagnostic equipment of elevator cooling fan and diagnostic method.
Background technology
So-called lift appliance is to instigate hoist engine rotation to make the people in car or goods lift the device to destination.In the power conversion device of power being used for driving hoist engine is provided, there is the rectifier unit that AC power converts to dc power and dc power is converted to DC-to-AC converter both devices of AC power.Rectifier unit and DC-to-AC converter have multiple thyristor.By the on/off action of these thyristors is controlled, come to the power desired by hoist engine offer, to control the traveling of elevator.
Rectifier unit or DC-to-AC converter, when AC power converting to dc power or converting dc power to AC power, can produce loss.As such loss, for instance there is produced switching loss etc. when making thyristor high speed on/off.Above-mentioned loss becomes heat and is released.When this heat slowly improves along with running continuously of elevator and reaches certain temperature, the life-span of power conversion device, fault can be impacted.Accordingly, it would be desirable to the method being undertaken dispelling the heat by the heat of power conversion device.
As a kind of heat dissipating method, it is known to make power conversion device contact with radiator and carry the air blast cooling mode of the wind from multiple cooling fans to the cooling fins of radiator.Can ensure that power conversion device is below set point of temperature by air blast cooling.
But, if cooling fan being attached with dust etc. and causing that air quantity declines, or fan motor occur broken string wait and cause cooling fan occur stopping fault, then the radiating efficiency of the power conversion device realized by radiator can decline, and the temperature of power conversion device can rise.If putting this temperature to rise and ignore, then the life-span of power conversion device can shorten, or be easily caused and break down.
In the prior art described in patent documentation 1, voltage or electric current to the cooling fan in energising detect, and according to its magnitude of voltage or current value, the rotating speed of cooling fan are speculated.And, in the prior art described in patent documentation 1, according to the rotating speed of cooling fan, the degradation mode of cooling fan is judged, or residual life is calculated.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2011-195273 publication
Summary of the invention
Invent technical problem to be solved
In the prior art, according to the rotation speed of the fan deduced, the degradation mode of cooling fan being judged, to judge the replacing period of cooling fan, does not have the unit of detection power conversion device temperature and speculate the unit of power conversion device temperature.Therefore, in the prior art, it is impossible to the impact that power conversion device is caused by the degradation mode cooling down fan is calculated, and also cannot the life-span of power conversion device be speculated.
Therefore, it is an object of the invention to, there is provided the diagnostic equipment and the diagnostic method of a kind of elevator cooling fan, the diagnostic equipment of this elevator cooling fan and diagnostic method based on the temperature of the cooling object of cooling fan and regulation device, the state of cooling fan can be judged.Another object of the present invention is to, the diagnostic equipment and the diagnostic method of a kind of elevator cooling fan are provided, this elevator cooling diagnostic equipment of fan and diagnostic method by temperature that cooling object and the regulation device of cooling fan are predicted and obtain compared with the temperature detected by reality, it is thus possible to the state of cooling fan is judged, and the life-span of regulation device can also be speculated.
Solve the technical scheme that technical problem adopts
In order to solve the problems referred to above, the diagnostic equipment of the cooling fan of the elevator involved by one viewpoint of the present invention is the diagnostic equipment of the elevator cooling fan that the cooling fan to elevator diagnoses, the regulation device that temperature is changed by cooling fan with the operation conditions of car cools down, the diagnostic equipment of described elevator cooling fan includes: temperature prediction portion, the temperature of regulation device is predicted by this temperature prediction portion according to the operation conditions of car；And state detection unit, this state detection unit Autonomous test in the future specifies that the detection temperature of the temperature detector of the temperature of device is compared with the predicted temperature that temperature prediction portion dopes, thus the state of cooling fan is judged.
More than the first threshold detecting temperature regulation higher than predicted temperature, state detection unit can determine that as the air quantity decline state that the air quantity being in cooling fan is declining, more than the Second Threshold detecting temperature regulation higher than predicted temperature and described Second Threshold is set to the value bigger than first threshold, state detection unit can determine that as being in the halted state that cooling fan stops.
Can also including life-span estimating unit, the life-span of regulation device is speculated by this life-span estimating unit based on detection temperature.
Invention effect
According to the present invention, based on the temperature of regulation device, the state of the cooling fan for cooling down regulation device can be judged.Additionally, the life-span of regulation device can be speculated based on the temperature of regulation device.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of lift appliance.
Fig. 2 indicates that the performance plot of the relation between the state of the detection temperature of power conversion device and the difference of predicted temperature and cooling fan.
Fig. 3 indicates that the flow chart of the process that the life-span to the cooling state of fan and power conversion device diagnoses.
Fig. 4 indicates that the explanation figure of the example of the installation site of the temperature detector involved by embodiment 2.
Detailed description of the invention
Hereinafter, based on accompanying drawing, embodiments of the present invention are described.As described later, the elevator 1 of present embodiment has: control dish 102, and this control dish 102 is arranged in lift path 111 or Machine Room；Elevator control gear 201, this elevator control gear 201 is arranged at control dish 102, and the operation of car 105 is controlled；Power conversion device 203, this power conversion device 203 is arranged at control dish 102, is controlled from three-phase alternating-current supply 101 to the power supply of hoist engine 103；Radiator 202, this radiator 202 includes multiple cooling fan 204A, the 204B for power conversion device 203 is cooled down；And temperature detector 205, this temperature detector 205 is installed on radiator 202.
The elevator 1 of present embodiment is such as when producing to run continuously, by the ascending temperature of the radiator 202 detected by temperature detector 205 compared with the prediction ascending temperature value that elevator control gear 201 calculates.The state of cooling fan 204A, 204B, based on the difference between detected ascending temperature and prediction ascending temperature, is judged, and according to temperature detection value, the residual life of power conversion device 203 is calculated by elevator 1.Then, the state of cooling fan 204A, 204B and the residual life of power conversion device 203 are transmitted report to external device (ED) 402,403 by elevator 1.Thus, the elevator 1 of present embodiment can reduce the number of stoppages of cooling fan 204A, 204B and power conversion device 203.Additionally, the elevator 1 of present embodiment can reduce the elevator dwell time produced respectively because of the fault of cooling fan 204A, 204B and power conversion device 203.
[embodiment 1]
Use Fig. 1～Fig. 3 that embodiment 1 is described.The elevator 1 of the present embodiment can be roughly divided into and make the elevator machine construction system that car 105 carries out lifting action and the apparatus for controlling elevator that elevator machine construction system is controlled.First elevator machine construction system is illustrated, then apparatus for controlling elevator is illustrated.
Elevator machine construction system makes car 105 lift in the lift path 111 that vertically each stop 300A, the 300B in building is configured.The power conversion device 203 that the power provided by three-phase alternating-current supply 101 is controlled in dish 102 converts arbitrary magnitude of voltage and frequency to, and is provided to hoist engine 103.Hoist engine 103 utilizes the power that the example by " regulation device " and power conversion device 203 provide, and to rotate to prescribed direction.When hoist engine 103 rotates, car 105 utilizes the driving force provided from the pulley 104 being connected with hoist engine 103 via main push-towing rope rope 110, lifts in lift path 111.
One end of main push-towing rope rope 110 is connected to car frame 106, and the other end of main push-towing rope rope 110 is connected to balancing weight 109.The destination floor registration device 107 being operated by the user of car it is provided with in car 105.The operation (car call) of destination floor registration device 107 is inputted the master control part 207 to elevator control gear 201 via not shown holding wire by user.
Loading inspection device 108A, 108B that the loading capacity in car is detected it is provided with between car 105 and car frame 106.Loading capacity detected by each loading inspection device 108A, 108B is via not shown holding wire input to master control part 207.
Each floor 300A, 300B that car 105 stops is provided with the door with car 105 and carries out stop door 302A, 302B of opening and closing linkedly.Additionally, each floor 300A, 300B are provided with landing button 301A, 301B of being operated by user.The operation (elevator hall call) of landing button 301A, 301B is inputted to master control part 207 by user via not shown holding wire.
Below apparatus for controlling elevator is illustrated.Control dish 102 is such as arranged in lift path 111 inside or Machine Room.Elevator control gear 201 and the power conversion device 203 being controlled by elevator control gear 201 it is provided with in control dish 102.In figure, power conversion device 203 is abbreviated as IPM (IntelligentPowerModule: SPM).Power conversion device 203 includes the drive circuit and the protection circuit that are driven for power semiconductor device (with reference to Fig. 4) as such as thyristor 2031.
Rectifier unit that power conversion device 203 can include the AC power provided by three-phase alternating-current supply 101 converts to dc power and filter capacitor (all not shown) and this dc power is converted to the not shown DC-to-AC converter of AC power of any voltage value and frequency.DC-to-AC converter includes multiple thyristor 2031, makes these switch elements 2031 carry out on/off action at high speed, thus dc power converts to arbitrary AC power.Utilize amperometric 206A, 206B that the output electric current of power conversion device 203 is detected, and be input to master control part 207.
Power conversion device 203 is installed on the radiator 202 with not shown multiple fin.Multiple cooling fan 204A, 204B it is provided with, to fin blow out air near radiator 202.Heat produced by switch element 2031 grade of power conversion device 203 is discharged to air from radiator 203.It addition, on radiator 203, the position near power conversion device 203 is provided with temperature detector 205.Temperature detected by temperature detector 205 is inputted as the signal of telecommunication abnormality determination unit 209 to elevator control gear 201 and life-span estimating unit 211.
The operation of car 105, speed are controlled by elevator control gear 201.Elevator control gear 201 such as can be constituted as the computer system including arithmetic processing apparatus, memorizer, imput output circuit, telecommunication circuit (all not shown) etc..
Elevator control gear 201 includes master control part 207, temperature prediction portion 208, abnormality determination unit 209, sends reporting unit 210, life-span estimating unit 211 as its function.
Master control part 207, based on the destination instruction inputted from destination floor registration device 107, the elevator hall call from landing button 301A, 301B input and the loading inspection signal from loading inspection device 108A, 108B, determines the lifting action of car 1.Master control part 207 generates for realizing the powered-on mode instruction of lifting action determined, and is input to power conversion device 203.Thyristor 2031 in power conversion device 203 carries out break-make according to powered-on mode instruction, thus comes hoist engine 103 is driven.The powered-on mode instruction that master control part 207 is generated also input temp prediction section 208.
Specifically, in order to make power conversion device 203 export arbitrary magnitude of voltage and frequency, the calling that master control part 207 is registered based on the loading capacity of car 105 detected by output electric current, loading inspection device 108A, 108B of the power conversion device 203 detected by amperometric 206A, 206B and landing button 301A, 301B or destination floor registration device 107, generate the conduction mode instruction for being supplied to thyristor 2031, and be input to power conversion device 203.
The ascending temperature of power conversion device 203, based on the powered-on mode instruction generated by master control part 207, is predicted by temperature prediction portion 208.The temperature doped by temperature prediction portion 208 is inputted to abnormality determination unit 209.
As the abnormality determination unit 209 of example of " state detection unit " by the temperature (detection temperature) detected by temperature detector 205 compared with the temperature (predicted temperature) that temperature prediction portion 208 dopes, thus the state of cooling fan 204A, 204B is judged.For carrying out the kind of the state judged, as described later, there are the state that air quantity is declining and the state breaking down and stopping.In the following description, the temperature detected by temperature detector 205 is called detection temperature or temperature detection value.
The life-span (residual life) of power conversion device 203, based on the detection temperature of temperature detector 205, is calculated by life-span estimating unit 211.Send reporting unit 210 to send the result of determination obtained by abnormality determination unit 209 and the Life Calculation result that obtained by life-span estimating unit 211 to external device (ED) 402,403.
As external device (ED), for instance the maintenance and administration center 402 being attached via communication network 401 can be listed and by terminal 403 that is wired or wireless and that be directly connected to elevator control gear 201.
Hereinafter, sometimes illustrate marking " A " " B " omission to distinguish multiple structures of the same race.Such as, when cooling fan 204A, 204B not being made a distinction especially, referred to as cooling fan 204.Equally, loading inspection device 108A, 108B are abbreviated as loading inspection device 108, amperometric 206A, 206B are abbreviated as amperometric 206, landing button 301A, 301B are abbreviated as landing button 301.
In the structure described in Fig. 1, if any one in the loading capacity in the displacement of car 105 and car 105 changes, then the power supply to hoist engine 103 needed for making car 105 travel can change.If the power supply of hoist engine 103 is changed, then the powered-on mode instruction of the thyristor 2031 in power conversion device 203 can change, and therefore, the waste in thyristor 2031 can change.As a result of which it is, heat dissipation capacity also can change produced by power conversion device 203.
As it has been described above, calculate the powered-on mode instruction sent to thyristor 2031 according to the loading capacity in the displacement of car 105, car 105.Therefore, the temperature rising degree of power conversion device 203, the temperature that namely rises are predicted by the temperature prediction portion 208 of the present embodiment based on powered-on mode instruction.Generally be difficult to directly to carry out resin moulded after the temperature of power conversion device 203 be measured, therefore, in the present embodiment, the ascending temperature as radiator 202 is predicted.Utilize abnormality determination unit 209 to this ascending temperature doped compared with the actual ascending temperature of the radiator 202 detected by temperature detector 205, it is thus possible to the state of cooling fan 204 is judged.
The performance plot of relation when Fig. 2 indicates that when the air quantity of cooling fan 204 declines and stops fault and between prediction ascending temperature value.The curve that the temperature of the power conversion device 203 that the prediction ascending temperature (Tpre) represented with solid line in Fig. 2 is the operation conditions (such as displacement, loading capacity) according to car 105 and dopes rises.Specifically, it is that the variations in temperature doped is risen the curve that is indicated as the temperature arranging near sites of temperature detector 205.
The detection temperature Ta represented with dotted line in Fig. 2 indicates that the curve of variations in temperature during cooling fan 204 no exceptions normal.The curve show the change of the time of the temperature of the power conversion device 203 detected by temperature detector 205 (being specifically the temperature of the radiator 202 being equipped with power conversion device 203).The detection temperature (Tblc) represented with single dotted broken line in Fig. 2 is cooling fan 204 curve of variations in temperature detected by temperature detector 205 when producing air quantity decline state.The detection temperature (Toff) represented with double dot dash line in Fig. 2 is that cooling fan 204 produces to stop the curve of variations in temperature detected by temperature detector 205 when malfunction.
Setting is got lower than owing to the attachment etc. of the penalty of fan motor, dust sometimes results in the air quantity cooling down fan 204.This state is called air quantity decline state.As shown by Fig. 2 single dotted broken line, when cooling down fan 204 and occurring air quantity to decline (Tblc), the t0 detection moment td through about a few minutes when starting from the continuous operation of elevator, starting to produce difference between prediction ascending temperature (Tpre) and measured temperature Tblc, this difference slowly increases.
On the other hand, cooling fan 204 cannot be worked because of the broken string of fan motor etc. and then the state that stops completely is called stopping malfunction.As shown by Fig. 2 double dot dash line, when cooling down fan 204 generation stopping fault (Toff), when declining with air quantity identical, the t0 detection moment td through about a few minutes when starting from the continuous operation of elevator, it was predicted that start to produce difference between ascending temperature (Tpre) and measured temperature Toff.This difference steeply rises constantly along with the prolongation running the time of elevator.Owing to cooling fan 204 does not work, therefore, accordingly, the actual temperature of power conversion device 203 continues to rise the operation with car 105.If the temperature Toff of power conversion device 203 exceedes ceiling temperature (Tbrk), then power conversion device 203 likely can break down.
As it has been described above, the rising manner of the temperature of power conversion device 203 is different according to the state of cooling fan 204.The mode that the temperature of the power conversion device 203 when cooling fan 204 is abnormal rises is more anxious than the mode that the temperature of the power conversion device 203 in the normal situation of cooling fan 204 rises.
The angle of elevation θ of the temperature rising curve of power conversion device 203 is discussed.The angle of elevation doped when not producing abnormal by cooling fan 204 is set to θ pre, and angle of elevation when occurring air quantity to decline in cooling fan 204 is set to θ blc, and angle of elevation when being stopped by cooling fan 204 is set to θ off.Angle of elevation θ pre in the cooling normal situation of fan 204 is minimum, angle of elevation θ off when cooling fan 204 stops is maximum, the angle of elevation θ blc (θ off > θ blc > θ pre) between θ pre and θ off when cooling fan 204 occurs air quantity to decline.
In the present embodiment, in order to the state of cooling fan 204 is judged, the moment producing difference between the ascending temperature (Tblc, Toff) when prediction ascending temperature (Tpre) and cooling fan 204 are produced difference is set to test point td.Then, the prediction ascending temperature value Tpre0 at test point td place and temperature detection value Ta (being Ta time normal, air quantity is Tblc when declining, and is Toff during stopping) being compared, according to its result, the state of cooling fan 204 is judged.
The threshold value of 2 condition adjudgement is set.First threshold value Δ T1 is the threshold value for grasping the situation that cooling fan 204 occurs air quantity to decline.Second threshold value Δ T2 is the threshold value of the stopping fault for grasping cooling fan 204.Second Threshold Δ T2 is set as the value (Δ T2 > Δ T1) bigger than first threshold Δ T1.As an example for understanding, it is also possible to first threshold Δ T1 is set to 20 degree, Second Threshold Δ T2 is set to 40 degree.The value different from these values can also be set to.
When the first threshold Δ T1 more than bigger than the temperature Tpre0 doped according to the operation conditions of car 105 of the temperature Ta detected by temperature detector 205 (Ta >=Tpre0+ Δ T1), this is abnormal to be judged as air quantity decline state occurring cooling fan 204.In this case, the detection temperature Ta of temperature detector 205 becomes detection temperature Tblc when air quantity declines.
When the Second Threshold Δ T2 more than bigger than the temperature Tpre0 doped according to the operation conditions of car 105 of the temperature Ta detected by temperature detector 205 (Ta >=Tpre0+ Δ T2), this is abnormal to be judged as occurring to stop fault (stopping because of fault) by cooling fan 204.In this case, the detection temperature Ta of temperature detector 205 becomes detection temperature Toff when stopping fault.
Until arriving the period till test point td t0 when from the beginning of operation continuously of elevator, in periodically repeatedly the prediction ascending temperature value Tpre0 at test point td place and the temperature detection value Ta of temperature detector 205 being compared.Thus, even if detection temperature Ta exceedes any one threshold value Δ T1, Δ T2 before test point td, the exception of cooling fan 204 can also be detected immediately.
In the present embodiment, as mentioned above, it is conceived to the difference between the temperature rising of power conversion device 203 in the cooling normal situation of fan 204 and the temperature rising cooling down power conversion device 203 when fan 204 occurs abnormal, the state of cooling fan 204 is judged.Instead, as mentioned above, it is also possible to adopt the structure state of cooling fan 204 judged based on the angle of elevation θ pre of temperature rising, θ blc, θ off.
Or, based on the temperature of the operation conditions of car 105 and lift path 111 etc., the temperature variation characteristic in the cooling normal situation of fan 204 can also be predicted, the difference between temperature detected by this temperature doped and temperature detector 205, judges the state of cooling fan 204.So, in the present embodiment, as the example of " by the detection temperature from the temperature detector 205 that the temperature of regulation device 203 is detected compared with the predicted temperature that temperature prediction portion 208 dopes thus the state detection unit 209 that the state of cooling fan 204 is judged ", disclose multiple structure example by enforceable mode.Any of which method can also be adopted.
Fig. 3 indicates that the flow chart to the process that the state cooling down fan 204 diagnoses.If being undertaken registering (S1: yes) by the elevator hall call instruction from landing button 301 or the destination instruction from destination floor registration device 107, then elevator control gear 201 starts present treatment.
The elevator control gear 201 powered-on mode instruction according to the thyristor 2031 being supplied in power conversion device 203, is calculated (S2) to the prediction ascending temperature value Tpre at the test point td place of radiator 202.
Elevator control gear 201 will predict that ascending temperature value Tpre0 (predicted temperature) is compared with the temperature detection value Ta (detection temperature) detected by temperature detector 205 (S3, S4).Such as, elevator control gear 201 is to whether the difference of prediction ascending temperature Tpre and temperature detection value Ta is Second Threshold Δ T2 judgement carried out above (S3).If the difference that elevator control gear 201 is judged to prediction ascending temperature Tpre and temperature detection value Ta is Second Threshold more than Δ T2 (S3: yes), then it is judged to that cooling fan 204 stops (S5) because of fault.
When elevator control gear 201 is judged to the difference of prediction ascending temperature Tpre and temperature detection value Ta less than Second Threshold Δ T2 (S3: no), whether the difference to prediction ascending temperature Tpre and temperature detection value Ta is first threshold Δ T1 judgement carried out above (S4).
If the difference that elevator control gear 201 is judged to prediction ascending temperature Tpre and temperature detection value Ta is first threshold more than Δ T1 (S4: yes), then it is judged to that air quantity decline state (S6) occurs cooling fan 204.
If elevator control gear 201 is judged to that the difference of prediction ascending temperature Tpre and temperature detection value Ta is less than first threshold Δ T1 (S4: no), then be judged to cooling fan 204 normal (S7).
So, after the state cooling down fan 204 is judged (S5, S6, S7), the residual life of power conversion device 203 is calculated (S8) by the elevator control gear 201 temperature detection value Ta detected by temperature detector 205.Generally, if electrical equipment is in the condition of high temperature in long-time, then internal component can worsen, and therefore, the life-span can shorten.Therefore, if obtaining the relational expression between temperature and life-span beforehand through experiment or emulation etc., then mathematic(al) expectation can be carried out based on this relational expression.In the present embodiment, Life Calculating Methods is not particularly limited.
Finally, the state of cooling fan 204 and the biometry value of power conversion device 203 are transmitted report (S9) from sending reporting unit 210 by elevator control gear 201 to outside.
According to the present embodiment with said structure; elevator control gear 201 by the temperature (prediction ascending temperature Tpre) that dopes according to the operation conditions of car 105 compared with the temperature (temperature detection value Ta) detected by the temperature detector 205 of the radiator 202 being arranged at power conversion device 203, it is thus possible to be normally to the state of cooling fan 204 or abnormal judge.
And, if the state of cooling fan 204 is judged by the elevator control gear of the present embodiment 201, then from transmission reporting unit 210, the state (normal condition, air quantity decline state, stopping malfunction) of cooling fan 204 is transmitted report.Thus, the operator of maintenance and administration center 402 or the attendant at scene are not switched on control dish 102 and just can grasp the state cooling down fan 204 or speculate its replacing period.Therefore, the efficiency of upkeep operation is improved.
Additionally, in the present embodiment, the state based on cooling fan 204 can reduce the number of stoppages of cooling fan 204 and change frequency, accordingly, it is capable to shorten the operation dwell time of elevator, the usability of user is also improved.
It addition, in the present embodiment, calculate power conversion device 203 residual life and outward portion be transmitted report, accordingly, it is capable to shorten operation stopping time and the operation dwell time of the elevator produced because of replacing or the fault of power conversion device 203.Thus, the usability of the user of elevator can also be improved.
[embodiment 2]
Use Fig. 4 that embodiment 2 is described.The present embodiment is the variation of embodiment 1, therefore, by with the difference of embodiment 1 centered by illustrate.
As it has been described above, power conversion device 203 is built-in with the thyristor 2031 carrying out break-make according to powered-on mode instruction.Thyristor 2031 is the example of " power semiconductor device according to the regulation that the operation conditions of car is generated heat ".Thyristor 2031 produces heat because of break-make.This heat is released in air via radiator 202.
In the present embodiment, it is conceived to radiator (thermal source) i.e. thyristor 231, the temperature sensing area 2021 being easier to detect the heating from thyristor 2031 is set on radiator 202.Temperature sensing area 2021 is such as the scope within center predetermined distance L1, L2 of distance thyristor 2031, can set the region as the surface being positioned at radiator 202.
The present embodiment having a structure in which also functions to action effect similarly to Example 1.Additionally, in the present embodiment, temperature detector 205 is located in the temperature sensing area 2021 being set in the regulation near thyristor 2031, accordingly, it is capable to the temperature of power conversion device 203 is detected with higher precision.
Additionally, this invention is not limited to above-mentioned embodiment.As long as those skilled in the art, various additional, changes etc. just can be carried out within the scope of the invention.
Label declaration
1: elevator
102: control dish
105: car
201: elevator control gear
202: radiator
203: power conversion device
204A, 204B: cooling fan
205: temperature detector
208: temperature prediction portion
209: abnormality determination unit
210: send reporting unit
211: life-span estimating unit
Claims (6)
1. an elevator diagnostic equipment for cooling fan, the cooling fan of elevator is diagnosed by the diagnostic equipment of this elevator cooling fan, it is characterised in that
The regulation device that temperature is changed by described cooling fan with the operation conditions of car cools down,
The diagnostic equipment of described elevator cooling fan includes:
Temperature prediction portion, the temperature of described regulation device is predicted by this temperature prediction portion according to the operation conditions of described car；And
State detection unit, described in this state detection unit Autonomous test in the future, the detection temperature of the temperature detector of the temperature of regulation device is compared with the predicted temperature that described temperature prediction portion dopes, thus the state of described cooling fan is judged.
2. the elevator as claimed in claim 1 diagnostic equipment of cooling fan, it is characterised in that
More than the first threshold of described detection temperature regulation higher than described predicted temperature, described state detection unit is judged to be in the air quantity decline state that the air quantity of described cooling fan is declining,
When more than described detection temperature is than the Second Threshold of the high regulation of described predicted temperature and described Second Threshold is set to the value bigger than described first threshold, described state detection unit is judged to be in the halted state that described cooling fan stops.
3. the elevator as claimed in claim 2 diagnostic equipment of cooling fan, it is characterised in that
Also including life-span estimating unit, the life-span of described regulation device is speculated by this life-span estimating unit based on described detection temperature.
4. the elevator as claimed in claim 3 diagnostic equipment of cooling fan, it is characterised in that
Also include output portion, described state detection unit the state determination results obtained is mapped by this output portion with the supposition life-span obtained by described life-span estimating unit, and exports to external device (ED).
5. the diagnostic equipment of cooling fan of the elevator as described in any one of Claims 1-4, it is characterised in that
Described regulation device is the power conversion device being powered to hoist engine, and described hoist engine makes described car lift,
Described power conversion device is provided with radiator,
Described temperature detector is the power semiconductor device of the regulation that described power conversion device has, be positioned at corresponding with the operation conditions of described car and near the power semiconductor device of regulation generated heat, be arranged at described radiator.
6. an elevator diagnostic method for cooling fan, the diagnostic method of this elevator cooling fan utilizes computer that the cooling fan of elevator is diagnosed, it is characterised in that
The regulation device that temperature is changed by described cooling fan with the operation conditions of car cools down,
The temperature of described regulation device is predicted by described computer according to the operation conditions of described car,
Described in described computer Autonomous test in the future, the detection temperature of the temperature detector of the temperature of regulation device is compared with the predicted temperature that described temperature prediction portion dopes, more than the first threshold of described detection temperature regulation higher than described predicted temperature, it is judged to be in the air quantity decline state that the air quantity of described cooling fan is declining, more than the Second Threshold of described detection temperature regulation higher than described predicted temperature, and described Second Threshold is when being set to the value bigger than described first threshold, it is judged to be in the halted state that described cooling fan stops.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014265409A JP6306500B2 (en) | 2014-12-26 | 2014-12-26 | Diagnostic device and diagnostic method for cooling fan for elevator |
| JP2014-265409 | 2014-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105731202A true CN105731202A (en) | 2016-07-06 |
| CN105731202B CN105731202B (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510982762.0A Active CN105731202B (en) | 2014-12-26 | 2015-12-24 | The diagnostic device and diagnostic method of elevator cooling fan |
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| Country | Link |
|---|---|
| JP (1) | JP6306500B2 (en) |
| CN (1) | CN105731202B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106502168A (en) * | 2016-12-21 | 2017-03-15 | 中车株洲电力机车研究所有限公司 | A kind of intelligent power component control system |
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| EP3368459B1 (en) * | 2015-10-29 | 2019-10-16 | Inventio AG | Drive engine arrangement with sensor-monitored fan for an elevator system |
| WO2018073943A1 (en) | 2016-10-20 | 2018-04-26 | 三菱電機株式会社 | Lifespan prediction device |
| CN108613815B (en) * | 2016-12-09 | 2020-07-28 | 上海大郡动力控制技术有限公司 | Method for judging working abnormity of pure electric vehicle cooling system |
| JP6729973B2 (en) * | 2018-03-01 | 2020-07-29 | 東芝エレベータ株式会社 | Elevator control device and cooling state detection method |
| WO2021131076A1 (en) * | 2019-12-27 | 2021-07-01 | ジャパンエレベーターサービスホールディングス株式会社 | Information processing device and information processing program |
| JP7171832B1 (en) | 2021-06-18 | 2022-11-15 | 東芝エレベータ株式会社 | ELEVATOR FAILURE DIAGNOSIS DEVICE AND ELEVATOR FAILURE DIAGNOSIS METHOD |
| JP7434449B2 (en) | 2022-07-27 | 2024-02-20 | 東芝エレベータ株式会社 | Elevator control device and elevator control method |
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Also Published As
| Publication number | Publication date |
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| CN105731202B (en) | 2018-06-05 |
| JP6306500B2 (en) | 2018-04-04 |
| JP2016124648A (en) | 2016-07-11 |
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