CN110040610A - Lift car fan control device and rectilinear elevator - Google Patents
Lift car fan control device and rectilinear elevator Download PDFInfo
- Publication number
- CN110040610A CN110040610A CN201910353786.8A CN201910353786A CN110040610A CN 110040610 A CN110040610 A CN 110040610A CN 201910353786 A CN201910353786 A CN 201910353786A CN 110040610 A CN110040610 A CN 110040610A
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- Prior art keywords
- relay
- switch
- lift car
- fan
- control device
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- 238000004146 energy storage Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 7
- 230000000994 depressogenic effect Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
- B66B11/024—Ventilation systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a kind of lift car fan control device and rectilinear elevators, and wherein lift car fan control device includes the first trigger switch and switch state circuit；First trigger switch and fan are electrically connected；Switch state circuit includes signal acquisition unit, converting unit and control unit；Signal acquisition unit is used to acquire the working condition of door open switch and door closing switch；Control unit and the first trigger switch are electrically connected；When signal acquisition unit detects door open switch and door closing switch while being acted, converting unit is converted and keeps the control signal of control unit output；Lift car fan control device through the invention, the control to fan is realized using door open switch original in lift car and door closing switch, other switches for controlling fans need not be installed in lift car open interior, facilitate passenger, the existing structure of lift car interior trim will not be destroyed again, can effectively improve user experience.
Description
Technical field
The present invention relates to elevator control technology field more particularly to a kind of lift car fans for facilitating passenger's autonomous control
Control device and rectilinear elevator.
Background technique
To provide comfortable elevator ride environment to passenger, it is generally provided with fan in the carriage of present elevator, is incited somebody to action
External pure and fresh air-flow or cold airflow is blown into carriage, but the fan in lift car is typically all that system is controlled automatically now
System, passenger not can control its opening and closing, and fan is generally chronically at the state of opening or closing (during elevator is run).When multiplying
When visitor feels cold, it can not go to close fan；When passenger feels sultry, can not go to open fan.This contradiction, it is warm round the clock
It in difference biggish season, is especially apparent.
If increasing the switch of a control fan in carriage according to routine, which needs to be mounted in carriage.Newly
The switch of increasing needs the aperture on car walls, will destroy the aesthetics of cab decoration, especially in occasions such as villa elevators, especially
It is obvious.
Summary of the invention
The purpose of the present invention is provide one kind to solve above-mentioned technical problem and both passenger's autonomous control had been convenient for not broken
The lift car fan control device of bad existing inner wall of elevator cage.
It is another object of the present invention to provide a kind of both convenient for passenger's autonomous control fan to solve above-mentioned technical problem
Switch will not destroy the rectilinear elevator of existing inner wall of elevator cage again.
To achieve the goals above, the invention discloses a kind of lift car fan control device, it is used to control installation
In be equipped in the working condition of the fan in lift car, the lift car with elevator control system be electrically connected enabling
Switch and door closing switch, the lift car fan control device include the first trigger switch and switch state circuit；Institute
It states the first trigger switch and the fan is electrically connected, for converting the open/close state of the fan；The switch state
Circuit includes signal acquisition unit, converting unit and control unit；The signal acquisition unit is for acquiring the door open switch
With the working condition of the door closing switch；Described control unit and first trigger switch are electrically connected, described for controlling
The working condition of first trigger switch；When the signal acquisition unit detects the door open switch and the door closing switch simultaneously
When being acted, the converting unit is converted and keeps the control signal of described control unit output.
Compared with prior art, lift car fan control device of the present invention is provided with the first touching being electrically connected with fan
Hair switch, controlled by ON/OFF signal that control unit in switch state circuit exports the first trigger switch it is logical/
It is disconnected, when passenger needs to change the working condition of fan, door open switch in lift car and door closing switch need to be only pressed simultaneously i.e.
The control signal that can be exported by signal acquisition unit and converting unit TCU transfer control unit, i.e., every simultaneously operation are once opened
Pass and door closing switch, the control signal of control unit output occurs once to convert between on and off, and keeps transformation result, from
And achieve the purpose that convert fan operating state；It follows that lift car fan control device through the invention, passes through elevator
Original door open switch and door closing switch realize the control to fan in carriage, install other without in lift car open interior
The switch for controlling fan, that is, facilitate passenger, and will not destroy the existing structure of lift car interior trim, can effectively improve user's body
Test sense.
Preferably, described control unit includes the first relay, first relay is for converting first triggering
The working condition of switch.
Preferably, the signal acquisition unit include respectively with the converting unit be connected in series the second trigger switch and
Third trigger switch, when the door open switch is acted, the working condition of second trigger switch changes, when described
When door closing switch is acted, the working condition of the third trigger switch changes.
Preferably, the lift car fan control device further includes being respectively used to drive second trigger switch and institute
The second relay and third relay of third trigger switch conversion work state are stated, the door open switch is connected in series in described
In the power circuit of second relay, the door closing switch is connected in series in the power circuit of the third relay, described
Second relay and the third relay are also electrically connected by a pair of of normally opened contact and elevator control system respectively.
Preferably, the converting unit includes the 4th relay and the 5th relay, the one of first relay is normally closed
It is connected on after contact is in parallel with a normally opened contact of the 4th relay with a normally-closed contact of the 5th relay described
In the current supply circuit of 4th relay；One normally opened contact of one normally opened contact of first relay and the 5th relay
A normally-closed contact after parallel connection with the 4th relay is connected in the current supply circuit of the 5th relay；Described first after
Normally-closed contact after one normally opened contact of electric appliance is in parallel with a normally opened contact of the 4th relay with the 5th relay
It is connected in the current supply circuit of first relay.
Preferably, the both ends of first relay are also electrically connected with an energy-storage module, the energy-storage module can be institute
It states the first relay and electricity in short-term is provided.
Preferably, the energy-storage module includes a RC series circuit.
Preferably, being also connected in series with one and elevator control system electric connection in the power circuit of the fan
4th trigger switch.
Invention additionally discloses a kind of rectilinear elevators comprising carriage is provided with fan and as described above in the carriage
Lift car fan control device.
Detailed description of the invention
Fig. 1 is the circuit connection diagram of car door control switch in the embodiment of the present invention.
The position Fig. 2 is the electrical block diagram that switch state circuit is converted in the embodiment of the present invention.
The circuit connection diagram of fan in the embodiment of the present invention of the position Fig. 3.
Specific embodiment
For technology contents, structure feature, realization principle and the objects and the effects that the present invention will be described in detail, tie below
It closes embodiment and attached drawing is cooperated to be explained in detail.
As shown in Figure 1 to Figure 3, the invention discloses a kind of rectilinear elevators comprising carriage (not shown) is set in carriage
It is equipped with the door open switch KM and door closing switch GM being electrically connected with elevator control system, when elevator reaches leveling, when movement is opened the door
When switch KM, car door executes door opening action, and when acting door closing switch GM, car door executes shutdown movement.Setting in carriage
Have for aeration-cooling fan 10, to manipulate fan 10 convenient for passenger, be provided in carriage with fan 10 and door open switch KM,
The lift car fan control device that door closing switch GM is electrically connected, which acquires in real time opens
The status signal for closing KM and door closing switch GM, when door open switch KM and door closing switch GM is moved at the same time, the conversion of fan 10 one
Task state, i.e., be converted to close off by opening, or is converted to opening by closing, when passenger needs to close or open fan 10
When, the door open switch KM and door closing switch GM in carriage need to be only pressed simultaneously.
Specifically, such as Fig. 2 and Fig. 3, lift car fan control device includes that the first trigger switch 20 and switch state turn
Change circuit.First trigger switch 20 is electrically connected with fan 10, for converting the open/close state of fan 10.Switch state
Circuit includes signal acquisition unit 30, converting unit 31 and control unit 32.Signal acquisition unit 30 is for acquiring door open switch
The working condition of KM and door closing switch GM.Control unit 32 and the first trigger switch 20 are electrically connected, for controlling the first triggering
The working condition of switch 20.When signal acquisition unit 30 detects door open switch KM and door closing switch GM while being acted, turn
The control signal that unit 31 is converted and control unit 32 is kept to export is changed, current, if fan 10 is in the open state, when same
When movement door open switch KM and door closing switch GM after, fan 10 is converted to close off state by opening state；Similarly, working as
Before, if fan 10 is in close state, after moving at the same time a door open switch KM and door closing switch GM, fan 10 is by closing
State conversion is in an open state.
Above-mentioned control unit 32 includes the first relay JF1, by the first relay JF1 electric convert the with power loss
The working condition of one trigger switch 20.In the present embodiment, the first trigger switch 20 is wherein one normally closed on the first relay JF1
Contact, when the first relay JF1 is in release conditions, the first trigger switch 20 is maintained at closed state, connection fan 10
Power circuit, when the first relay JF1 is in attracting state, the first trigger switch 20 is converted to off-state, disconnects fan
10 power circuit.
Signal acquisition unit 30 includes that the second trigger switch 21 being connected in series respectively with converting unit 31 and third trigger
Switch 22, when door open switch KM is acted, the working condition of the second trigger switch 21 changes, when door closing switch GM is passive
When making, the working condition of third trigger switch 22 changes, when the work of the second trigger switch 21 and third trigger switch 22
When state changes simultaneously, indicate that door open switch KM and door closing switch GM is moved at the same time, converting unit 31 is to control unit
32 execute a secondary control signal switching motion.Preferably, can be driven respectively by the second relay JF2 and third relay JF3
Dynamic 22 conversion work state of second trigger switch 21 and third trigger switch, i.e., be connected in series in the second relay for door open switch KM
In the power circuit of device JF2, door closing switch GM is connected in series in the power circuit of third relay JF3, the second relay JF2
It is also electrically connected respectively by a pair of of normally opened contact and elevator control system with third relay JF3, so that the door open switch
It still normally inputs with the action state of the door closing switch to elevator control system, does not influence the door open switch and described
The function of door closing switch inherently.In the present embodiment, the second relay JF2 has two pairs of normally opened contacts, respectively normally opened touching
Point a2 and normally opened contact b2, third relay JF3 have two pairs of normally opened contacts, respectively normally opened contact a3 and normally opened contact b3,
Normally opened contact a2 and normally opened contact a3 is electrical with the opening signal input terminal of elevator control system and door signal input terminal respectively
Connection, normally opened contact b2 and normally opened contact b3 are used separately as the second trigger switch 21 and third trigger switch 22, with converting unit
31 are connected in series.As individually operated door open switch KM, the second relay JF2 obtain it is electric, be in attracting state so that normally opened contact
A2 is connected, and elevator control system obtains opening signal, and similarly, as individually operated door closing switch GM, elevator control system is obtained
Door signal, when elevator control system obtains opening signal and door signal simultaneously, car door is failure to actuate or car door is opened
Door (enabling when lift car stops at level position, but opening the door does not influence elevator normal operation).By above-mentioned
The setting of second relay JF2 and third relay JF3 reach while the open and close door movement for not influencing elevator and pass through electricity
The purpose of ladder existing door open switch KM and door closing switch GM control fan 10.
Further, such as Fig. 2, converting unit 31 includes the 4th relay JF4 and the 5th relay JF5, the 4th relay
Device JF4 has three pairs of contacts, respectively normally opened contact a4, normally opened contact b4 and normally-closed contact c4, and the 5th relay JF5 has
Three pairs of contacts, respectively normally-closed contact a5, normally-closed contact b5 and normally opened contact c5, in addition, the first relay in above-described embodiment
Device JF1 have four pairs of contacts, respectively normally opened contact a1, normally-closed contact b1, normally opened contact c1 and be used as the first trigger switch
20 normally-closed contact d1.With after the normally-closed contact b1 of first relay JF1 is in parallel with the normally opened contact b4 of the 4th relay JF4
The normally-closed contact b5 of five relay JF5 is connected in the current supply circuit of the 4th relay JF4；The normally opened touching of first relay JF1
Is connected on after point c1 is in parallel with a normally opened contact c5 of the 5th relay JF5 with a normally-closed contact c4 of the 4th relay JF4
In the current supply circuit of five relay JF5；The normally opened contact a4 of the normally opened contact a1 and the 4th relay JF4 of first relay JF1
It is connected in the current supply circuit of the first relay JF1 after parallel connection with the normally-closed contact a5 of the 5th relay JF5.
The course of work of 10 control device of lift car fan with above structure is as follows:
1.1 elevator initial power-ons
When elevator switchs to power-up state from off-position, on the one hand: door open switch KM and door closing switch GM not by
Movement, therefore the second relay JF2 and third relay JF3 are not attracted, normally opened contact b2 and normally opened contact b3 are disconnected, from
And the 4th relay JF4 and the 5th relay JF5 is made to be at release conditions, the normally opened contact a4 of the 4th relay JF4 is disconnected
Open, on the other hand: the first relay JF1 in elevator off-position in release conditions, normally opened contact a1 is disconnected.To sum up two
Known to aspect: when elevator switchs to power-up state, the first relay JF1 is continuously maintained in release conditions, so that normally-closed contact
D1 is in an ON state.
1.2 door open switch KM and door closing switch GM are concurrently depressed
When door open switch KM, door closing switch GM are concurrently depressed, the second relay JF2 and third relay JF3 are attracted,
Normally opened contact b2 is connected with normally opened contact b3, as shown in Figure 2, the normally-closed contact b1 of the 4th front end relay JF4 and normally closed touching
Point b5 is all in on-state, and the normally opened contact c1 and normally opened contact c5 of the 5th front end relay JF5 are in off-state,
Therefore the 4th relay JF4 will be attracted, and during the 4th relay JF4 is attracted, normally-closed contact c4 is first disconnected, so that the 5th
Relay JF5 cannot be attracted, and then normally opened contact a4 is connected, so that the first relay JF1 is attracted.When unclamp door open switch KM and
After door closing switch GM, the second relay JF2, third relay JF3 discharge, and normally opened contact 2 and normally opened contact b3 are disconnected, from
And the 4th relay JF4 and the 5th relay JF5 is made to be at release conditions.Since the first relay JF1 relay is attracted
Afterwards, normally opened contact a1 is connected, and therefore, after unclamping door open switch KM and door closing switch GM, the first relay JF1 is still maintained
In attracting state.After first relay JF1 is converted to attracting state from release conditions, normally-closed contact d1 is disconnected, and leads to fan
10 power circuit is converted to disconnection by being connected, to complete the conversion of 10 working condition of primary air fan.
1.3 door open switch KM, door closing switch GM are concurrently depressed again
When door open switch KM, door closing switch GM are concurrently depressed again, the second relay JF2, third relay JF3 inhale
It closes, normally opened contact b2 is connected with normally opened contact b3.According to above-mentioned 1.2 it is found that the first relay JF1 is maintained at attracting state,
Therefore, the normally-closed contact b1 of the 4th front end relay JF4 is disconnected, and normally opened contact b4 is disconnected, and is released so that the 4th relay JF4 is in
Put state.The normally opened contact c1 of 5th front end relay JF5 is connected, and normally-closed contact c4 is connected, therefore the 5th relay JF5 inhales
It closes, normally-closed contact a5 is caused to disconnect, normally opened contact c5 is connected, so that the first relay JF1 is converted to release shape by being attracted
State, so that normally-closed contact d1 is connected, the power circuit of fan 10 is converted to conducting by disconnecting, to complete fan 10 again
Working condition conversion.Then door open switch KM and door closing switch GM, the second relay JF2 and third relay JF3 are unclamped
It all discharges, normally opened contact b2 and normally-closed contact b3 are disconnected, so that the 4th relay JF4 and the 5th relay JF5 are at and release
State is put, and the first relay JF1 still maintains release conditions, i.e., so that fan 10 is maintained at opening state.
In this above-mentioned operating process, door open switch KM and door closing switch GM is pressed simultaneously again and is then unclamped, the
The state of one relay JF1 is converted to release, at this time on initial in the state of entire switch state circuit and above-mentioned 1.1
Electricity condition is identical.
To sum up, end-state of the first relay JF1 in the end-state in aforesaid operations process 1.3 is with 1.1 is identical,
Therefore, door open switch KM and when being concurrently depressed for door closing switch GM more times, the first relay JF1 by 1.3 end-state and
It is recycled between 1.2 end-state, i.e., the first relay JF1 is recycled between release conditions and attracting state, so that wind
Fan 10 recycles between opening and closing.
In addition, general normally-closed contact first disconnects, by certain when switching to attracting state from release conditions due to relay
After reaction time, normally opened contact is just closed.It is normally closed after the first relay JF1 obtains electric in above-mentioned 1.3 operating process
Contact a5 is first disconnected, to disconnect the current supply circuit of the first relay JF1, normally opened contact c5 is closed after certain reaction time
It closes, if normally opened contact c5 cannot complete closure, the first relay JF1 before closed normally opened contact c1 disconnection
And the 5th relay JF5 will be attracted, vibrate between release conditions in turn, then unclamping door open switch KM and door closing switch GM
Before, the current supply circuit of the first relay JF1 causes convert failed it is also possible to be again switched on.Therefore, the first relay JF1
Both ends be also electrically connected with an energy-storage module, energy-storage module can provide electricity in short-term for the first relay JF1.Preferably, storage
Energy module includes a RC series circuit being made of capacitor C1 and resistance R1,.
In aforesaid operations process 1.1, when elevator initial power-on, the storage for capacitor C1 and resistance the R1 composition being cascaded
Energy circuit does not store energy, will not influence the state of the first relay JF1.In aforesaid operations process 1.2, the first relay
JF1 is in attracting state, charges to the capacitor C1 and resistance R1 accumulator formed.In aforesaid operations process 1.3, the
Five relay JF5 obtain it is electric after, normally-closed contact a5 is first disconnected, thus disconnect the first relay JF1 current supply circuit.At this point, electric
The accumulator for holding C1 and resistance R1 composition discharges to the first relay JF1, so that the first relay JF1 still maintains actuation shape
State selects the capacitor C1 and resistance R1 of appropriate specification, so that the first relay JF1 continues to keep the time t, 0.1s of attracting state
≤ t≤0.4s avoids the first relay JF1 so that the normally opened contact c5 of the 5th relay JF5 has time enough connection
State convert failed.When the energy of above-mentioned accumulator has consumed, the first relay JF1 is converted to release conditions, and is maintained at
The state.
Consider to save electric energy, such as Fig. 3, one and elevator control system electricity are also connected in series in the power circuit of fan 10
Property connection the 4th trigger switch 23.When elevator is in idle state, elevator control system can control the 4th trigger switch 23
It is in an off state, to close 10 power supply of fan.
In conclusion the invention discloses a kind of rectilinear elevator for being provided with lift car fan control device, fan
10 have turned on (or closing), and door open switch KM, door closing switch GM can be pressed simultaneously and be unclamped again by passenger, so that the first relay
JF1 switchs to attracting state (or switching to release conditions from attracting state) from release conditions, so that normally-closed contact d1 disconnection (or connect
It is logical), to close (or unlatching) fan 10.
The above disclosure is only a preferred example of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore according to equivalent variations made by scope of the present invention patent, still falls within the range that the present invention is covered.
Claims (9)
1. a kind of lift car fan control device is used to control the working condition for the fan being installed in lift car, institute
State the door open switch and door closing switch for being equipped in lift car and being electrically connected with elevator control system, which is characterized in that described
Lift car fan control device includes:
First trigger switch, first trigger switch and the fan are electrically connected, for converting the ON/OFF shape of the fan
State；
Switch state circuit, the switch state circuit include signal acquisition unit, converting unit and control unit；
The signal acquisition unit is used to acquire the working condition of the door open switch and the door closing switch；Described control unit and institute
The electric connection of the first trigger switch is stated, for controlling the working condition of first trigger switch；When the signal acquisition unit
When detecting the door open switch and the door closing switch while being acted, the converting unit is converted and keeps the control single
The control signal of member output.
2. lift car fan control device according to claim 1, which is characterized in that described control unit includes first
Relay, first relay are used to convert the working condition of first trigger switch.
3. lift car fan control device according to claim 2, which is characterized in that the signal acquisition unit includes
The second trigger switch and third trigger switch being connected in series respectively with the converting unit, when the door open switch is acted
When, the working condition of second trigger switch changes, when the door closing switch is acted, the third trigger switch
Working condition change.
4. lift car fan control device according to claim 3, which is characterized in that further include being respectively used to driving institute
State the second relay and third relay of the second trigger switch and the third trigger switch conversion work state, the enabling
Switch is connected in series in the power circuit of second relay, and the door closing switch is connected in series in the third relay
Power circuit in, second relay and the third relay also pass through a pair of of normally opened contact and elevator controlling system respectively
System is electrically connected, so that the action state of the door open switch and the door closing switch is still normally input to elevator controlling system
System, does not influence the function of the door open switch and the door closing switch inherently.
5. lift car fan control device according to claim 4, which is characterized in that the converting unit includes the 4th
Relay and the 5th relay, a normally-closed contact of first relay are in parallel with a normally opened contact of the 4th relay
The normally-closed contact with the 5th relay is connected in the current supply circuit of the 4th relay afterwards；First relay
A normally opened contact it is in parallel with a normally opened contact of the 5th relay after a normally-closed contact string with the 4th relay
It is associated in the current supply circuit of the 5th relay；The one of one normally opened contact of first relay and the 4th relay
It is connected in the current supply circuit of first relay after normally opened contact is in parallel with the normally-closed contact of the 5th relay.
6. lift car fan control device according to claim 5, which is characterized in that the both ends of first relay
It is also electrically connected with an energy-storage module, the energy-storage module can provide electricity in short-term for first relay.
7. lift car fan control device according to claim 6, which is characterized in that the energy-storage module includes a RC
Series circuit.
8. lift car fan control device according to claim 1, which is characterized in that in the power circuit of the fan
Also it is connected in series with the 4th trigger switch being electrically connected with the elevator control system.
9. a kind of rectilinear elevator, which is characterized in that including carriage, fan is provided in the carriage and such as claim 1 to 8
Described in any item lift car fan control devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353786.8A CN110040610B (en) | 2019-04-28 | 2019-04-28 | Elevator car fan control device and vertical elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353786.8A CN110040610B (en) | 2019-04-28 | 2019-04-28 | Elevator car fan control device and vertical elevator |
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| Publication Number | Publication Date |
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| CN110040610A true CN110040610A (en) | 2019-07-23 |
| CN110040610B CN110040610B (en) | 2024-03-22 |
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| CN201910353786.8A Active CN110040610B (en) | 2019-04-28 | 2019-04-28 | Elevator car fan control device and vertical elevator |
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