CN105731202B - The diagnostic device and diagnostic method of elevator cooling fan - Google Patents
The diagnostic device and diagnostic method of elevator cooling fan Download PDFInfo
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- CN105731202B CN105731202B CN201510982762.0A CN201510982762A CN105731202B CN 105731202 B CN105731202 B CN 105731202B CN 201510982762 A CN201510982762 A CN 201510982762A CN 105731202 B CN105731202 B CN 105731202B
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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
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The elevator of the present invention can be judged with the diagnostic device and diagnostic method of cooling fan based on the temperature of cooling object, that is, regulation device of cooling fan come the state to cooling fan.The regulation device (203) that cooling fan (204A, 204B) changes temperature with the operation conditions of car (105) cools down.Elevator control gear (201) includes：The temperature prediction portion (208) predicted according to the operation conditions of car come the temperature to regulation device；And self-test in future provides state determination unit (209) of the detection temperature of the temperature detector (205) of the temperature of device compared with the predicted temperature that temperature prediction portion is predicted, so as to be judged the state of cooling fan.The state output of the cooling fan that reporting unit (210) is determined the service life of regulation device that service life estimating unit is deduced and abnormality determination unit is sent to outside.
Description
Technical field
The present invention relates to the diagnostic devices and diagnostic method of elevator cooling fan.
Background technology
So-called lift appliance is that hoist engine is instigated to rotate to make the people in car or cargo to lift to the device of destination.
In the power conversion device for driving the power of hoist engine is provided, there is the rectification that AC power is converted into dc power
Device device and dc power is converted into the DC-to-AC converter of AC power both devices.Rectifier unit and inverter
Device has multiple thyristors.By controlling the on/off action of these thyristors, to volume
It raises machine and desirable power is provided, to control the traveling of elevator.
AC power is being converted into dc power or is converting dc power to strike a bargain by rectifier unit or DC-to-AC converter
In the case of flowing power, loss can be generated.As such loss, such as have when making thyristor high speed on/off
Generated switching loss etc..Above-mentioned loss becomes heat and is released.When the heat with the continuous operation of elevator and slowly
When improving and reaching some temperature, service life of power conversion device, failure can be impacted.Therefore, it is necessary to convert power
The method that the heat of device radiates.
As a kind of heat dissipating method, it is known to power conversion device be made to be in contact with radiator and to the cooling wing of radiator
Piece conveys the air blast cooling mode of the wind from multiple cooling fans.It can ensure that power conversion device is providing by air blast cooling
Below temperature.
However, if dust etc. is attached in cooling fan and causes air quantity declines or fan motor generation is broken etc.
And cooling fan is caused to occur to stop failure, then the radiating efficiency for the power conversion device realized by radiator can decline, work(
The temperature of rate conversion equipment can rise.If putting the temperature to rise and ignore, the service life of power conversion device can shorten, Huo Zherong
It easily leads to and breaks down.
In the prior art, the voltage or electric current of the cooling fan in energization are being detected recorded in patent document 1,
Speculated according to its voltage value or current value come the rotating speed to cooling fan.Moreover, in the existing skill recorded in patent document 1
In art, judged according to the rotating speed of cooling fan come the degradation mode to cooling fan or remaining life is calculated.
Prior art literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2011-195273 publications
The content of the invention
The technical problems to be solved by the invention
In the prior art, judged according to the rotation speed of the fan deduced come the degradation mode to cooling fan, with
Judge the replacement period of cooling fan, unit and supposition power conversion device temperature without detection power conversion device temperature
Unit.Therefore, in the prior art, can not to the degradation mode of cooling fan to the influence caused by power conversion device into
Row calculates, and also the service life of power conversion device can not be speculated.
Therefore, it is an object of the present invention to provide a kind of diagnostic device and diagnostic method of elevator cooling fan, the electricity
Ladder with the diagnostic device and diagnostic method of cooling fan can the temperature based on cooling object, that is, regulation device of cooling fan come pair
The state of cooling fan is judged.Another object of the present invention is to provide a kind of diagnostic devices of elevator cooling fan
And diagnostic method, the diagnostic device and diagnostic method of the elevator cooling fan will provide dress to the cooling object of cooling fan
Temperature obtained by being predicted is put compared with the temperature detected by reality, is sentenced so as to the state to cooling fan
It is fixed, and the service life of regulation device can also be speculated.
Technical scheme applied to solve the technical problem
To solve the above-mentioned problems, the elevator involved by a viewpoint of the invention is pair with the diagnostic device of cooling fan
The diagnostic device for the elevator cooling fan that the cooling fan of elevator is diagnosed, cooling fan is to temperature with the operation shape of car
Condition and the regulation device that changes are cooled down, and the diagnostic device of the elevator cooling fan includes：Temperature prediction portion, the temperature
Prediction section is predicted according to the operation conditions of car come the temperature to regulation device；And state determination unit, the state judge
Portion's self-test in future provides the detection temperature of the temperature detector of the temperature of device and the pre- thermometric that temperature prediction portion is predicted
Degree compares, so as to judge the state of cooling fan.
Detection temperature than predicted temperature it is high as defined in it is more than first threshold in the case of, state determination unit can determine that for
The air quantity that air quantity in cooling fan is declining declines state, in detection temperature defined second threshold higher than predicted temperature
In the case that value is above and the second threshold is set to the value bigger than first threshold, state determination unit can determine that as place
In the halted state that cooling fan stops.
It can also include service life estimating unit, which is pushed away based on detection temperature come the service life to regulation device
It surveys.
Invention effect
According to the present invention, can based on regulation device temperature come the state of the cooling fan to being used to cool down regulation device into
Row judges.In addition, it can be speculated based on the temperature of regulation device come the service life to regulation device.
Description of the drawings
Fig. 1 is the overall structure figure of lift appliance.
Fig. 2 is represented between the detection temperature of power conversion device and the difference of predicted temperature and the state of cooling fan
The performance plot of relation.
Fig. 3 is the flow chart for representing the processing diagnosed to the state of cooling fan and the service life of power conversion device.
Fig. 4 is the exemplary definition graph for the installation site for representing the temperature detector involved by embodiment 2.
Specific embodiment
Hereinafter, an embodiment of the present invention will be described based on the drawings.As described later, the elevator 1 of present embodiment has：Control
Disk 102, which is arranged in lift path 111 or Machine Room；Elevator control gear 201, the elevator control gear
201 are arranged at control panel 102, and the operation of car 105 is controlled；Power conversion device 203, the power conversion device 203
Control panel 102 is arranged at, to being controlled from three-phase alternating-current supply 101 to the power supply of hoist engine 103；Radiator 202, the heat dissipation
Device 202 includes multiple cooling fans 204A, 204B cooled down to power conversion device 203；And temperature detector
205, which is installed on radiator 202.
The elevator 1 of present embodiment is for example when generating continuous operation, by the radiator detected by temperature detector 205
202 ascending temperature is compared with the prediction ascending temperature value that elevator control gear 201 is calculated.Elevator 1 is based on being detected
Difference between the ascending temperature and prediction ascending temperature that go out, judges come the state to cooling fan 204A, 204B, and root
It is calculated according to temperature detection value come the remaining life to power conversion device 203.Then, elevator 1 by cooling fan 204A,
The state of 204B and the remaining life of power conversion device 203 carry out transmission report to external device (ED) 402,403.This reality as a result,
The number of stoppages of cooling fan 204A, 204B and power conversion device 203 can be reduced by applying the elevator 1 of mode.In addition, this embodiment party
The elevator 1 of formula, which can reduce the elevator generated respectively during the failure because cooling fan 204A, 204B and power conversion device 203, to be stopped
Time.
[embodiment 1]
Illustrate embodiment 1 using Fig. 1~Fig. 3.The elevator 1 of the present embodiment, which can be roughly divided into, is lifted car 105
The elevator train of mechanism of action and the apparatus for controlling elevator controlled elevator train of mechanism.First to system of elevator mechanism
System illustrates, and then apparatus for controlling elevator is illustrated.
Elevator train of mechanism makes car 105 in each stop 300A, 300B vertically in building to carry out
It is lifted in the lift path 111 of setting.By the power that three-phase alternating-current supply 101 is provided by the power in control panel 102
Conversion equipment 203 is converted into arbitrary voltage value and frequency, and is provided to hoist engine 103.Hoist engine 103 is using by " regulation
The power that example, that is, power conversion device 203 of device " is provided is rotated to prescribed direction.When hoist engine 103 rotates,
Car 105 is using the driving force provided from the pulley 104 being connected with hoist engine 103 via main push-towing rope rope 110, in lift path
Lifting in 111.
One end of main push-towing rope rope 110 is connected with car frame 106, and the other end of main push-towing rope rope 110 is connected with clump weight 109.Sedan-chair
The destination floor registration device that is operated 107 is provided with by the user of car in compartment 105.User steps on destination
The operation (car call) of note device 107 is inputted through not shown signal wire to the main control unit in elevator control gear 201
207。
The loading inspection device being detected to the loading capacity in car is provided between car 105 and car frame 106
108A、108B.Loading capacity detected by each loading inspection device 108A, 108B is inputted through not shown signal wire to master control
Portion 207 processed.
Each floor 300A, 300B that car 105 is stopped are equipped with the stop door being linkedly opened and closed with the door of car 105
302A、302B.In addition, each floor 300A, 300B are equipped with landing button 301A, the 301B operated by user.It uses
Person inputs to main control unit 207 operation (elevator hall call) of landing button 301A, 301B through not shown signal wire.
Apparatus for controlling elevator is illustrated below.Control panel 102 is for example arranged at 111 inside of lift path or Machine Room
In.Equipped with elevator control gear 201 and the power converting means controlled by elevator control gear 201 in control panel 102
Put 203.In figure, power conversion device 203 is abbreviated as IPM (Intelligent Power Module：Intelligent power module).
Power conversion device 203 is included for power semiconductor device for example as thyristor 2031, (reference to be schemed
4) driving circuit and protection circuit being driven.
Power conversion device 203 can include the AC power provided by three-phase alternating-current supply 101 being converted into direct current work(
The rectifier unit and filter condenser (all not shown) of rate and the dc power is converted into any voltage value and frequency
The DC-to-AC converter (not shown) of AC power.DC-to-AC converter includes multiple thyristors 2031, makes these switches
Element 2031 carries out on/off action at high speed, so as to which dc power is converted into arbitrary AC power.Utilize current detector
206A, 206B are detected come the output current to power conversion device 203, and are input to main control unit 207.
Power conversion device 203 is installed on the radiator 202 with multiple cooling fins (not shown).Near radiator 202
Equipped with multiple cooling fans 204A, 204B, to cooling fin blow out air.Switch element 2031 by power conversion device 203 etc.
Generated heat is discharged from radiator 203 into air.In addition, on radiator 203, in the attached of power conversion device 203
Near position is equipped with temperature detector 205.Temperature detected by temperature detector 205 is inputted as electric signal to electricity
Abnormality determination unit 209 and service life estimating unit 211 in terraced control device 201.
Elevator control gear 201 controls the operation of car 105, speed.Elevator control gear 201 can for example be formed
As the computer system for including arithmetic processing apparatus, memory, imput output circuit, telecommunication circuit (all not shown) etc..
Elevator control gear 201 is as its function and including main control unit 207, temperature prediction portion 208, abnormality determination unit
209th, reporting unit 210, service life estimating unit 211 are sent.
Main control unit 207 based on the destination instruction inputted from destination floor registration device 107, from landing button
The elevator hall call of 301A, 301B input and the loading inspection signal from loading inspection device 108A, 108B, come
Determine the lifting action of car 1.Main control unit 207 generates the powered-on mode instruction for being used to implement determined lifting action, and
It is input to power conversion device 203.Thyristor 2031 in power conversion device 203 refers to according to powered-on mode
Order carries out break-make, and thus hoist engine 103 is driven.The powered-on mode instruction that main control unit 207 is generated is also defeated
Enter temperature prediction portion 208.
Specifically, in order to which power conversion device 203 is made to export arbitrary voltage value and frequency, main control unit 207 is based on
The output current of power conversion device 203 detected by current detector 206A, 206B, loading inspection device 108A, 108B
What the loading capacity and landing button 301A, 301B or destination floor registration device 107 of detected car 105 were registered
Calling, the conduction mode to generate to be supplied to thyristor 2031 instructs, and is input to power converting means
Put 203.
Temperature prediction portion 208 is based on the powered-on mode instruction generated by main control unit 207, to power conversion device
203 ascending temperature is predicted.The temperature predicted by temperature prediction portion 208 is inputted to abnormality determination unit 209.
Exemplary abnormality determination unit 209 as " state determination unit " (examines the temperature detected by temperature detector 205
Testing temperature) compared with the temperature (predicted temperature) that temperature prediction portion 208 is predicted, so as to cooling fan 204A, 204B
State judged.Species for the state judged as described later, there is state, Yi Jifa that air quantity declining
The state given birth to failure and stopped.In the following description, will detection temperature be known as the temperature detected by temperature detector 205
Or temperature detection value.
Detection temperature of the service life estimating unit 211 based on temperature detector 205, it is (surplus to the service life of power conversion device 203
The remaining service life) it is calculated.Reporting unit 210 is sent by the judgement result obtained by abnormality determination unit 209 and by the service life to speculate
The service life result of calculation that portion 211 is obtained is sent to external device (ED) 402,403.
As external device (ED), such as the maintenance and administration center being attached via communication network 401 can be included
402 and the terminal 403 that is directly connected to by wired or wireless with elevator control gear 201.
Hereinafter, " A " " B " will be marked to distinguish multiple structures of the same race sometimes to omit to illustrate.For example,
In the case of not distinguished especially to cooling fan 204A, 204B, cooling fan 204 is referred to as.Equally, by loading capacity
Detector 108A, 108B are abbreviated as loading inspection device 108, and current detector 206A, 206B are abbreviated as current detector
206, landing button 301A, 301B are abbreviated as landing button 301.
In the structure described in Fig. 1, if any one in loading capacity in the displacement distance of car 105 and car 105
It changes, then for car 105 is made to travel changing to the power supply of hoist engine 103 of needing.If to hoist engine 103
Power supply changes, then the powered-on mode instruction of the thyristor 2031 in power conversion device 203 can change,
Therefore, the waste in thyristor 2031 can change.As a result, caused by power conversion device 203
Heat dissipation capacity can also change.
As described above, it is calculated according to the loading capacity in the displacement distance of car 105, car 105 to semiconductor switch
The powered-on mode instruction that element 2031 is sent.Therefore, the temperature prediction portion 208 of the present embodiment based on powered-on mode instruction come pair
The temperature rising degree of power conversion device 203, the temperature risen are predicted.It is generally difficult to directly resin moulded to carrying out
The temperature of power conversion device 203 afterwards is measured, and therefore, in the present embodiment, the ascending temperature as radiator 202 comes
It is predicted.Using abnormality determination unit 209 come to dissipating detected by the ascending temperature predicted and temperature detector 205
The actual ascending temperature of hot device 202 compares, and judges so as to the state to cooling fan 204.
Fig. 2 be represent cooling fan 204 air quantity decline when and stop failure when and prediction ascending temperature value between pass
The performance plot of system.The prediction ascending temperature (Tpre) represented in Fig. 2 with solid line be according to the operation conditions of car 105 (such as
Displacement distance, loading capacity) and curve that the temperature of power conversion device 203 that predicts rises.Specifically, it is that will be predicted
The temperature change gone out rises the curve being indicated as the temperature of the setting near sites of temperature detector 205.
The detection temperature Ta represented in Fig. 2 with dotted line be represent 204 no exceptions of cooling fan it is normal when temperature
Spend the curve of variation.The curve show the power conversion device 203 detected by temperature detector 205 temperature (in detail and
Speech is the temperature for the radiator 202 for being equipped with power conversion device 203) time change.It is represented in Fig. 2 with single dotted broken line
Detection temperature (Tblc) be cooling fan 204 generate air quantity decline state in the case of as detected by temperature detector 205
The curve of temperature change.The detection temperature (Toff) represented in Fig. 2 with double dot dash line is that cooling fan 204 generates stopping event
As the curve of the temperature change detected by temperature detector 205 in the case of barrier state.
The air quantity that attachment of penalty, dust due to fan motor etc. sometimes results in cooling fan 204 becomes
Less than specified value.The state is known as air quantity and declines state.As shown by Fig. 2 single dotted broken lines, in cooling fan 204
In the case that generation air quantity declines (Tblc), in the continuous t0 when operation starts from elevator by the detection moment of or so a few minutes
Td starts to generate difference between prediction ascending temperature (Tpre) and measured temperature Tblc, which slowly increases.
On the other hand, by cooling fan 204 because the shape that can not be worked and then stop completely durings broken string of fan motor etc.
State is known as stopping malfunction.As shown by Fig. 2 double dot dash lines, occur to stop the feelings of failure in cooling fan 204
It is identical when declining with air quantity under condition (Toff), in detections of the continuous t0 when operation starts from elevator by or so a few minutes
Td is carved, starts to generate difference between prediction ascending temperature (Tpre) and measured temperature Toff.The difference is with the fortune of elevator
The extension of row time and constantly steeply rise.Since cooling fan 204 does not work, it is corresponding with the operation of car 105
Ground, the actual temperature of power conversion device 203 persistently rise.If the temperature Toff of power conversion device 203 is more than ceiling temperature
(Tbrk), then power conversion device 203 it is possible that can break down.
As described above, the rising manner of the temperature of power conversion device 203 according to the state of cooling fan 204 each not phase
Together.The mode that the temperature that cooling fan 204 deposits power conversion device 203 in an exceptional case rises is than cooling fan 204
The mode that the temperature of power conversion device 203 in the case of normal rises is anxious.
It discusses to the angle of elevation θ of the temperature rising curve of power conversion device 203.Cooling fan 204 is not produced
The angle of elevation predicted in the case of raw exception is set to θ pre, in the case that cooling fan 204 air quantity decline occur
Angle of elevation is set to θ blc, and the angle of elevation in the case that cooling fan 204 is stopped is set to θ off.Cooling fan 204 is normal
In the case of angle of elevation θ pre it is minimum, the angle of elevation θ off in the case that cooling fan 204 stops are maximum, cooling fan
Angle of elevation θ blc in the case that 204 generation air quantity decline are located between θ pre and θ off (θ off ＞ θ blc ＞ θ pre).
In the present embodiment, in order to which the state to cooling fan 204 judges, will prediction ascending temperature (Tpre) with it is cold
But test point td is set at the time of difference is generated between the ascending temperature (Tblc, Toff) in the case that fan 204 generates difference.
Then, (it is Ta when normal, air quantity is when declining by the prediction ascending temperature value Tpre0 at test point td and temperature detection value Ta
Tblc is Toff during stopping) it compares, judged according to its result come the state to cooling fan 204.
The threshold value of 2 condition adjudgements is set.First threshold value Δ T1 is to occur for grasping cooling fan 204 under air quantity
The threshold value of the situation of drop.Second threshold value Δ T2 is for grasping the threshold value of the stopping failure of cooling fan 204.Second threshold Δ
T2 is set as the value bigger than first threshold Δ T1 (Δ T2 ＞ Δ T1).It, can also be by as an example for understanding
One threshold value Δ T1 is set to 20 degree, and second threshold Δ T2 is set to 40 degree.It can also be set to the value different from these values.
In the temperature Ta detected by temperature detector 205 than the temperature that is predicted according to the operation conditions of car 105
Tpre0 is wanted in the case of big more than first threshold Δ T1 (Ta >=Tpre0+ Δ T1), can be judged as that air quantity occurs for cooling fan 204
This exception of decline state.In this case, the detection temperature Ta of temperature detector 205 becomes detection temperature when air quantity declines
Spend Tblc.
In the temperature Ta detected by temperature detector 205 than the temperature that is predicted according to the operation conditions of car 105
Tpre0 wants in the case of big more than second threshold Δ T2 (Ta >=Tpre0+ Δ T2), to be judged as that cooling fan 204 stops
Failure (stops) this exception due to failure.In this case, the detection temperature Ta of temperature detector 205, which becomes, stops failure
When detection temperature Toff.
The continuous t0 when operation starts from elevator until test point td is reached during, in periodically repeatedly
To the prediction ascending temperature value Tpre0 at test point td compared with the temperature detection value Ta of temperature detector 205.As a result,
Even if in the case that detection temperature Ta is more than any one threshold value Δ T1, Δ T2 before test point td, can also detect immediately
The exception of cooling fan 204.
In the present embodiment, as described above, be conceived to cooling fan 204 it is normal in the case of power conversion device 203
Difference between the temperature of power conversion device 203 rises in the case that temperature rises and cooling fan 204 is abnormal, comes
The state of cooling fan 204 is judged.Instead, as described above, the rising risen based on temperature can also be used
The structure that angle, θ pre, θ blc, θ off are judged come the state to cooling fan 204.
It alternatively, can also be based on the operation conditions of car 105 and the temperature etc. of lift path 111 come to cooling fan 204
Temperature variation characteristic in the case of normal is predicted, is detected according to the temperature predicted with temperature detector 205
Difference between the temperature gone out judges come the state to cooling fan 204.In this way, in the present embodiment, as " in the future
The detection temperature for the temperature detector 205 being detected from the temperature to regulation device 203 is predicted with temperature prediction portion 208
Predicted temperature compare, the example of state determination unit 209 " so as to be judged the state of cooling fan 204, with can be real
The mode applied discloses multiple configuration examples.Any of which method can also be used.
Fig. 3 is the flow chart for representing the processing diagnosed to the state of cooling fan 204.If landing button will be come from
(S1 is registered in 301 elevator hall call instruction or the destination instruction from destination floor registration device 107：It is),
Then elevator control gear 201 starts present treatment.
Elevator control gear 201 is according to the energization of the thyristor 2031 being supplied in power conversion device 203
Mode instruction calculates (S2) the prediction ascending temperature value Tpre at the test point td of radiator 202.
Elevator control gear 201 will be predicted detected by ascending temperature value Tpre0 (predicted temperature) and temperature detector 205
Temperature detection value Ta (detection temperature) compare (S3, S4).For example, elevator control gear 201 is to predicting ascending temperature Tpre
And whether the difference of temperature detection value Ta is more than second threshold Δ T2 to be judged (S3).If elevator control gear 201 is determined as
The difference for predicting ascending temperature Tpre and temperature detection value Ta is more than second threshold Δ T2 (S3：It is), then it is determined as cooling fan
204 stop (S5) due to failure.
The difference for being judged to predicting ascending temperature Tpre and temperature detection value Ta in elevator control gear 201 is less than second threshold
(S3 in the case of Δ T2：It is no), to the difference for predicting ascending temperature Tpre and temperature detection value Ta whether be first threshold Δ T1 with
On judged (S4).
If elevator control gear 201 is judged to predicting that the difference of ascending temperature Tpre and temperature detection value Ta is first threshold Δ
More than T1 (S4：It is), then it is determined as that cooling fan 204 occurs air quantity and declines state (S6).
If elevator control gear 201 is judged to predicting that the difference of ascending temperature Tpre and temperature detection value Ta is less than first threshold
ΔT1(S4：It is no), then it is determined as that cooling fan 204 is normal (S7).
In this way, after the state to cooling fan 204 judges (S5, S6, S7), 201 basis of elevator control gear
Temperature detection value Ta detected by temperature detector 205 is calculated (S8) come the remaining life to power conversion device 203.
Generally, if electrical equipment is in a long time in the condition of high temperature, internal circuit element can deteriorate, therefore, service life meeting
Shorten.Therefore, if the relational expression between temperature and service life is obtained beforehand through experiment or emulation etc., the relational expression can be based on
Carry out mathematic(al) expectation.In the present embodiment, Life Calculating Methods are not particularly limited.
Finally, elevator control gear 201 is by the state of cooling fan 204 and the life prediction value of power conversion device 203
From reporting unit 210 is sent transmission report (S9) is carried out to outside.
According to the present embodiment with said structure, elevator control gear 201 is pre- by the operation conditions institute according to car 105
Temperature (prediction ascending temperature Tpre) and the temperature detector 205 for the radiator 202 for being arranged at power conversion device 203 measured
Detected temperature (temperature detection value Ta) compares, so as to the state to cooling fan 204 be it is normal or it is abnormal into
Row judges.
Moreover, if the elevator control gear 201 of the present embodiment judges the state of cooling fan 204, from transmission
The state (normal condition, air quantity decline state, stopping malfunction) of cooling fan 204 is carried out transmission report by reporting unit 210.
The operator of maintenance and administration center 402 or the maintenance personnel at scene can grasp cooling fan without opening control panel 102 as a result,
204 state speculates its replacement period.Therefore, the efficiency of upkeep operation is improved.
In addition, in the present embodiment, the state based on cooling fan 204 can reduce cooling fan 204 the number of stoppages and
Frequency is replaced, accordingly, it is capable to shorten the operation dwell time of elevator, the usability of user is also improved.
In addition, it in the present embodiment, calculates the remaining life of power conversion device 203 and outward portion carries out transmission report
It accuses, accordingly, it is capable to shorten the operation stopping time of the elevator generated due to replacement or the failure of power conversion device 203 and operation stops
The only time.The usability of the user of elevator can be also improved as a result,.
[embodiment 2]
Illustrate embodiment 2 using Fig. 4.The present embodiment is the variation of embodiment 1, therefore, with the difference with embodiment 1
It is illustrated centered on point.
As described above, power conversion device 203 is built-in with according to powered-on mode instruction to carry out the semiconductor switch of break-make
Element 2031.Thyristor 2031 is " the defined power semiconductor member generated heat according to the operation conditions of car
The example of part ".Thyristor 2031 generates heat due to break-make.The heat is released into air via radiator 202
In.
In the present embodiment, it is conceived to radiator (heat source) i.e. thyristor 231, will be easier to detect certainly
The temperature sensing area 2021 of the fever of thyristor 2031 is set on radiator 202.Temperature sensing area 2021
The scope within center predetermined distance L1, L2 e.g. apart from thyristor 2031 can set conduct and be located at
The region on the surface of radiator 202.
The present embodiment having a structure in which also functions to effect similarly to Example 1.In addition, in the present embodiment
In, temperature detector 205 is set in the defined temperature sensing area 2021 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 the above embodiments.As long as those skilled in the art, just can be in the scope of the present invention
It is interior to carry out various additions, change etc..
Label declaration
1：Elevator
102：Control panel
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：Service life estimating unit.
Claims (5)
1. a kind of diagnostic device of elevator cooling fan, the diagnostic device of the elevator cooling fan is to the cooling fan of elevator
It is diagnosed, which is characterized in that
The cooling fan cools down the regulation device that temperature changes with the operation conditions of car,
The diagnostic device of the elevator cooling fan includes：
Temperature prediction portion, the temperature prediction portion carry out the temperature of the regulation device according to the operation conditions of the car pre-
It surveys；And
State determination unit, the detection temperature of the temperature detector of the temperature of regulation device described in the state determination unit self-test in future
Compared with the predicted temperature predicted with the temperature prediction portion, so as to judge the state of the cooling fan,
In the case of more than the detection temperature defined first threshold higher than the predicted temperature, the state determination unit
It is determined as that the air quantity that the air quantity in the cooling fan is declining declines state,
More than the detection temperature defined second threshold higher than the predicted temperature and the second threshold is set to
In the case of the value bigger than the first threshold, the determination unit determines that the stoppings stopped in the cooling fan for the state
State.
2. the diagnostic device of elevator cooling fan as described in claim 1, which is characterized in that
Service life estimating unit is further included, which is pushed away based on the detection temperature come the service life to the regulation device
It surveys.
3. the diagnostic device of elevator cooling fan as claimed in claim 2, which is characterized in that
Further include output section, the output section by by the state determination results that the state determination unit is obtained with being pushed away by the service life
The supposition service life that survey portion is obtained is mapped, and exports to external device (ED).
4. the diagnostic device of elevator cooling fan as described in any one of claim 1 to 3, which is characterized in that
The regulation device is the power conversion device being powered to hoist engine, and the hoist engine lifts the car,
The power conversion device is equipped with radiator,
The temperature detector is defined power semiconductor device possessed by the power conversion device, positioned at it is described
Near the defined power semiconductor device that the operation conditions of car is corresponding and generates heat, the radiator is arranged at.
5. a kind of diagnostic method of elevator cooling fan, the elevator with the diagnostic method of cooling fan using computer come to electricity
The cooling fan of ladder is diagnosed, which is characterized in that
The cooling fan cools down the regulation device that temperature changes with the operation conditions of car,
The computer predicts according to the operation conditions of the car come the temperature to the regulation device,
Provide that detection temperature and the temperature of the temperature detector of the temperature of device are pre- described in the self-test in computer future
The predicted temperature that survey portion is predicted compares, the detection temperature it is higher than the predicted temperature as defined in first threshold with
In the case of upper, it is determined as that the air quantity that the air quantity in the cooling fan is declining declines state, in the detection temperature
As defined in higher than the predicted temperature it is more than second threshold and the second threshold be set to it is bigger than the first threshold
Value in the case of, be determined as in the cooling fan stop halted state.
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| JP2014265409A JP6306500B2 (en) | 2014-12-26 | 2014-12-26 | Diagnostic device and diagnostic method for cooling fan for elevator |
| JP2014-265409 | 2014-12-26 |
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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 |
| CN106502168B (en) * | 2016-12-21 | 2019-07-26 | 中车株洲电力机车研究所有限公司 | A kind of intelligent power component control 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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| CN105731202A (en) | 2016-07-06 |
| JP6306500B2 (en) | 2018-04-04 |
| JP2016124648A (en) | 2016-07-11 |
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