CN113474274B - Ventilation control device for elevator for controlling ventilation in car - Google Patents
Ventilation control device for elevator for controlling ventilation in car Download PDFInfo
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- CN113474274B CN113474274B CN201980093018.1A CN201980093018A CN113474274B CN 113474274 B CN113474274 B CN 113474274B CN 201980093018 A CN201980093018 A CN 201980093018A CN 113474274 B CN113474274 B CN 113474274B
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- ventilation
- car
- control device
- estimated value
- elevator
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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- 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
Abstract
Provided is a ventilation control device for an elevator, which can properly ventilate the inside of a car. The ventilation control device of an elevator is provided with: a ventilation amount estimation unit that calculates an estimated value of a total ventilation amount of the car by adding an estimated value of a ventilation amount of the car related to opening of a car door of the car to an estimated value of a ventilation amount of the car related to driving of the ventilation fan; and a ventilation fan control unit that stops driving of the ventilation fan when the estimated value of the integrated ventilation rate calculated by the ventilation rate estimation unit exceeds a preset threshold value.
Description
Technical Field
The present invention relates to a ventilation control device for an elevator, which controls ventilation in a car.
Background
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 3-177295
Disclosure of Invention
Problems to be solved by the invention
However, in the ventilation control device described in patent document 1, when a predetermined time has elapsed, the ventilation fan is stopped. Therefore, depending on the operating conditions of the car, the ventilation amount of the car may be inappropriate.
The present invention has been made to solve the above problems. The invention aims to provide a ventilation control device of an elevator, which can properly ventilate the interior of a car.
Means for solving the problems
The ventilation control device for an elevator of the present invention comprises: a ventilation amount estimation unit that calculates an estimated value of a total ventilation amount of a car by adding an estimated value of a ventilation amount of the car related to opening of a car door of the car to an estimated value of the ventilation amount of the car related to driving of a ventilation fan of the car of the elevator; and a ventilation fan control unit that stops driving of the ventilation fan when the estimated value of the integrated ventilation rate calculated by the ventilation rate estimation unit exceeds a preset threshold value.
The ventilation control device for an elevator of the present invention comprises: a ventilation amount estimation unit that calculates an estimated value of a total ventilation amount of a car by adding an estimated value of a ventilation amount of the car involved in driving of a ventilation fan of the car of an elevator to an estimated value of a ventilation amount of the car involved in opening of a car door of the car and an estimated value of a ventilation amount of the car involved in traveling of the car; and a ventilation fan control unit that stops driving of the ventilation fan when the estimated value of the integrated ventilation amount calculated by the ventilation amount estimation unit exceeds a preset threshold value.
Effects of the invention
According to these inventions, the control device calculates the estimated value of the total ventilation amount of the car by adding the estimated value of the car ventilation amount related to the opening of the car door of the car to the estimated value of the car ventilation amount related to the driving of the ventilation fan. The control device stops the driving of the ventilation fan when the estimated value of the comprehensive ventilation amount of the car exceeds a preset threshold value. Therefore, the inside of the car can be appropriately ventilated.
Drawings
Fig. 1 is a configuration diagram of an elevator to which a ventilation control device of an elevator according to embodiment 1 is applied.
Fig. 2 is a perspective view of a car to which a ventilation control device for an elevator according to embodiment 1 is applied.
Fig. 3 is a block diagram of a control device as a ventilation control device for an elevator according to embodiment 1.
Fig. 4 is a diagram for explaining the ventilation amount of the car to which the ventilation control device for an elevator of embodiment 1 is applied.
Fig. 5 is a diagram for explaining an example of the ventilation amount when the car is in a door closing standby state to which the ventilation control device for an elevator of embodiment 1 is applied.
Fig. 6 is a diagram for explaining an example of the ventilation amount when a user is carried by a car to which the ventilation control device for an elevator of embodiment 1 is applied.
Fig. 7 is a diagram for explaining a variation of the car ventilation amount in the ventilation control device for an elevator according to embodiment 1.
Fig. 8 is a diagram for explaining an example of setting a ventilation stop line of a car to which the ventilation control device for an elevator of embodiment 1 is applied.
Fig. 9 is a diagram for explaining an example of setting a ventilation stop line of a car to which the ventilation control device for an elevator of embodiment 1 is applied.
Fig. 10 is a flowchart for explaining an outline of an operation of a control device as a ventilation control device for an elevator according to embodiment 1.
Fig. 11 is a flowchart for explaining the details of the operation of the control device as the ventilation control device for an elevator according to embodiment 1.
Fig. 12 is a hardware configuration diagram of a control device as a ventilation control device for an elevator according to embodiment 1.
Detailed Description
A mode for carrying out the invention is explained with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Repetitive description of this part is appropriately simplified or omitted.
Fig. 1 is a configuration diagram of an elevator to which a ventilation control device of an elevator according to embodiment 1 is applied.
The elevator of fig. 1 is a machine room-less elevator. In this elevator, a hoistway 1 penetrates each floor of a building not shown. A plurality of landings, not shown, are provided on each floor of the building. Each of the plurality of landings faces the hoistway 1.
The hoisting machine 2 is disposed at the bottom of the hoistway 1. The main ropes 3 are wound around the traction machine 2.
The car 4 is disposed inside the hoistway 1. The car 4 is supported on one side of the main ropes 3. The counterweight 5 is disposed inside the hoistway 1. The counterweight 5 is supported on the other side of the main rope 3.
A plurality of landing doors, not shown, are provided at each doorway of a plurality of landings. The car door 6 is provided at an entrance of the car 4.
The control device 7 is provided at the bottom of the hoistway 1. The control device 7 is arranged to be able to control the elevator as a whole.
Next, the car 4 will be described with reference to fig. 2.
Fig. 2 is a perspective view of a car to which a ventilation control device for an elevator according to embodiment 1 is applied.
As shown in fig. 2, the car 4 includes a door switch 8, a ventilation fan 9, and a drive device 10.
The door switch 8 is provided at an upper edge portion of the doorway of the car 4. The door switch 8 is provided to be able to detect the open/close state of the car doors 6. The ventilation fan 9 is provided on the ceiling of the car 4. The ventilation fan 9 is provided to ventilate the inside of the car 4 by air intake from the inside of the car 4 or air exhaust to the inside of the car 4. The drive device 10 is provided on the ceiling of the car 4. The driving device 10 is provided to be capable of driving and stopping the ventilation fan 9.
Next, the control device 7 will be described with reference to fig. 3.
Fig. 3 is a block diagram of a control device as a ventilation control device for an elevator according to embodiment 1.
As shown in fig. 3, the controller 7 also functions as a ventilation controller. Specifically, the control device 7 includes a ventilation amount estimation unit 7a and a ventilation fan control unit 7b.
The ventilation amount estimating unit 7a receives inputs of date and time information, travel time information of the car 4, and travel speed information of the car 4 from other functions of the control device 7. The ventilation amount estimation unit 7a receives input of opening/closing time information of the car door 6 from the door switch 8. The ventilation amount estimation unit 7a receives input of driving time information of the ventilation fan 9 from the driving device 10.
The ventilation rate estimating unit 7a calculates an estimated value of the total ventilation rate of the car 4 based on the inputted information. For example, the ventilation rate estimating unit 7a calculates the estimated value of the total ventilation rate of the car 4 by adding the estimated value of the ventilation rate of the car 4 related to the opening of the car door 6 of the car 4 and the estimated value of the ventilation rate of the car 4 related to the traveling of the car 4 to the estimated value of the ventilation rate of the car 4 related to the driving of the ventilation fan 9. Specifically, the ventilation rate estimating unit calculates an estimated value Q of the integrated ventilation rate of the car 4 using the following expression (1).
Q＝γ×t od +δ×v m ×t m +ε×t f (1)
Where γ is a coefficient of ventilation involved in opening the car door 6. t is t od Is the time that the car door 6 is open. δ is a coefficient of ventilation involved in the running of the car 4. v. of m Is the running speed of the car 4. t is t m Is the travel time of the car 4. Epsilon is a ventilation coefficient related to driving of the ventilation fan 9. t is t f Is the driving time of the ventilator 9. In addition, epsilon is proportional to the air volume of the ventilation fan 9.
The ventilation fan control unit 7b controls the driving of the ventilation fan 9 via the driving device 10 based on the estimated value of the total ventilation rate calculated by the ventilation rate estimation unit 7 a. For example, the ventilation fan control unit 7b stops the driving of the ventilation fan 9 when the estimated value of the integrated ventilation amount calculated by the ventilation amount estimation unit 7a exceeds a preset threshold value. Specifically, the ventilation fan control unit 7b determines that the total estimated value Q of the car 4 exceeds the value represented by the following expression (2)Threshold Q b In the case of (3), the driving of the ventilation fan 9 is stopped.
Q b ＝α+β+V (2)
Where α is the seasonal factor. β is a coefficient of the time period. V is the volume of the car 4.
Next, the ventilation amount of the car will be described with reference to fig. 4.
Fig. 4 is a diagram for explaining the ventilation amount of the car to which the ventilation control device for an elevator of embodiment 1 is applied.
In fig. 4, a indicates the amount of ventilation of the car 4 related to driving by the ventilation fan 9. B is the ventilation volume of the car 4 with respect to the opening of the car door 6. C is the ventilation amount of the car 4 involved in the running of the car 4.
When the car door 6 is opened, air inside the car 4 is rapidly replaced through the doorway of the car 4. Therefore, the temporal rate of change of the ventilation volume B is larger than the temporal rate of change of the ventilation volume a. When the car 4 travels, air inside the car 4 is gradually replaced via the gap of the car 4. Therefore, the temporal change rate of the ventilation rate C is smaller than the temporal change rate of the ventilation rate a.
Next, an example of the ventilation amount of the car 4 during the door closing standby time will be described with reference to fig. 5.
Fig. 5 is a diagram for explaining an example of the ventilation amount of the car in the door closing standby state to which the ventilation control device for an elevator of embodiment 1 is applied.
In fig. 5, the volume of the car 4 is set in advance. The air volume of the ventilation fan 9 is preset. The time for which the car door 6 is opened is 0 second. The running speed of the car 4 is 0km/h. The travel time of the car 4 is 0 second. The driving time of the ventilator 9 is 10 minutes.
In fig. 5 (a), the driving of the ventilation fan 9 is started. In fig. 5 (b) and (c), the ventilation amount of the car 4 increases according to the time during which the ventilation fan 9 is driven. As a result, as shown in fig. 5 (d), at time T1, the ventilation amount of the car 4 reaches the ventilation stop line.
Next, an example of the ventilation amount when the car 4 transports the user will be described with reference to fig. 6.
Fig. 6 is a diagram for explaining an example of ventilation amount when a user is carried by a car to which the ventilation control device for an elevator of embodiment 1 is applied.
In fig. 6, the volume of the car 4 is set in advance. The air volume of the ventilation fan 9 is preset. The time for which the car door 6 is opened is 5 seconds. The running speed of the car 4 is 15km/h. The travel time of the car 4 is 0 second. The driving time of the ventilator 9 is 8 minutes.
In fig. 6 (a), the driving of the ventilation fan 9 is started. In fig. 6 (b), the ventilation amount of the car 4 increases not only in accordance with the time during which the ventilation fan 9 is driven but also in accordance with the time during which the car door 6 is opened. In fig. 6 (c), the ventilation amount of the car 4 increases not only in accordance with the time during which the ventilation fan 9 is driven but also in accordance with the time during which the car 4 travels. As a result, as shown in fig. 6 (d), the ventilation amount of the car 4 reaches the ventilation stop line at time T2 earlier than time T1.
Next, an example of changes in the car ventilation amount will be described with reference to fig. 7.
Fig. 7 is a diagram for explaining an example of changes in the car ventilation amount in the ventilation control device for an elevator according to embodiment 1.
In fig. 7, E1 is an example of a change in the ventilation amount of the car 4 during the door closing standby. E2 is an example of the ventilation amount when the car 4 transports the user.
In E1, the car 4 waits for a door to be closed from time T0 to time T1. The car 4 is kept in a door closing standby state from time T1 to time T2. The car 4 remains in a door-closed standby state from time T2 to time T3. The car 4 remains in the door-closed standby state from time T3 to time T4. The car 4 remains in a door-closed standby state from time T4 to time T5.
In this case, the time rate of change in the ventilation rate of the car 4 during the period from the time T1 to the time T2 is equal to the time rate of change in the ventilation rate a in fig. 4. During the period from the time T2 to the time T3, the time rate of change in the ventilation amount of the car 4 is equal to the time rate of change in the ventilation amount a in fig. 4. During the period from the time T3 to the time T4, the time rate of change in the ventilation rate of the car 4 is equal to the time rate of change in the ventilation rate a in fig. 4. During the period from the time T4 to the time T5, the time rate of change in the ventilation amount of the car 4 is equal to the time rate of change in the ventilation amount a of fig. 4.
In E2, the car 4 waits for the door to be closed from time T0 to time T1. The car 4 opens the car door 6 from time T1 to time T2. The car 4 travels from time T2 to time T3. The car 4 opens the car door 6 at time T3 to time T4. The car 4 waits for the door to be closed from time T4 to time T5.
In this case, the time rate of change in the ventilation rate of the car 4 is equal to the time rate of change in the ventilation rate a of fig. 4 from the time T1 to the time T2. During the period from the time T2 to the time T3, the time change rate of the ventilation amount of the car 4 is equal to the total time change rate of the ventilation amount a and the ventilation amount B in fig. 4. During the period from the time T3 to the time T4, the time change rate of the ventilation amount of the car 4 is equal to the total time change rate of the ventilation amount a and the ventilation amount C in fig. 4. During the period from the time T4 to the time T5, the time rate of change in the ventilation amount of the car 4 is equal to the time rate of change in the ventilation amount a of fig. 4.
Next, the setting of the ventilation stop line will be described with reference to fig. 8 and 9.
Fig. 8 and 9 are diagrams for explaining an example of setting a ventilation stop line of a car to which the ventilation control device for an elevator of embodiment 1 is applied.
Fig. 8 is an example of a summer ventilation stop line. In summer, the temperature and humidity inside the car 4 are high. Further, the sensitivity of the nose of the user is also high. Therefore, the ventilation stop line in summer is set to a relatively large ventilation amount.
Fig. 9 is an example of a winter ventilation stop line. In winter, the temperature and humidity inside the car 4 are low. Further, the sensitivity of the nose of the user is also low. Therefore, the ventilation stop line in winter is set to a relatively small ventilation amount.
Next, an outline of the operation of the control device 7 will be described with reference to fig. 10.
Fig. 10 is a flowchart for explaining an outline of an operation of a control device as a ventilation control device for an elevator according to embodiment 1.
In step S1, the control device 7 drives the ventilation fan 9 via the drive device 10 based on a preset condition. After that, the control device 7 performs the operation of step S2. In step S2, the controller 7 calculates an estimated value of the integrated ventilation amount of the car 4.
After that, the control device 7 performs the operation of step S3. In step S3, the control device 7 determines whether or not the estimated value of the integrated ventilation amount of the car 4 exceeds a preset threshold.
When it is determined in step S3 that the estimated value of the integrated ventilation amount of the car 4 does not exceed the preset threshold value, the control device 7 performs the operation of step S2. When it is determined in step S3 that the estimated value of the integrated ventilation amount of the car 4 exceeds the preset threshold, the control device 7 performs the operation of step S4.
In step S4, the control unit 7 stops the ventilation fan 9 via the drive unit 10. After that, the control device 7 ends the operation.
Next, the operation of the control device 7 will be described in detail with reference to fig. 11.
Fig. 11 is a flowchart for explaining details of an operation of a control device as a ventilation control device for an elevator in embodiment 1.
In step S11, the control device 7 determines whether or not the ventilation fan 9 is operating. When it is determined in step S11 that the ventilation fan 9 is not operating, the control device 7 performs the operation of step S11. When it is determined in step S11 that the ventilation fan 9 is operating, the control device 7 performs the operation of step S12.
In step S12, the control device 7 calculates an estimated value of the amount of ventilation of the car 4 that the ventilation fan 9 drives. After that, the control device 7 performs the operation of step S13. In step S13, the control device 7 determines whether or not the car door 6 is open.
When it is determined in step S13 that the car door 6 is open, the control device 7 performs the operation of step S14. In step S14, the control device 7 calculates an estimated value of the ventilation amount of the car 4 related to the opening of the car door 6.
If it is determined in step S13 that the car door 6 is not open, the controller 7 performs the operation of step S15. In step S15, the control device 7 determines whether the car 4 is traveling.
When it is determined in step S15 that the car 4 is traveling, the control device 7 performs the operation of step S16. In step S16, the control device 7 calculates an estimated value of the ventilation amount of the car 4 involved in the travel of the car 4.
After step S14, if it is determined in step S15 that the car 4 is not running, the control device 7 performs the operation of step S17 after step S16. In step S17, the control device 7 updates the estimated value of the integrated ventilation amount of the car 4. After that, the control device 7 performs the operation of step S18. In step S18, the control device 7 determines whether or not the total ventilation amount of the car 4 exceeds a preset threshold.
When it is determined in step S18 that the integrated ventilation amount of the car 4 does not exceed the preset threshold, the control device 7 performs the operation of step S12. When it is determined in step S18 that the total ventilation amount of the car 4 exceeds the preset threshold, the control device 7 performs the operation of step S19.
In step S19, the control unit 7 stops the ventilation fan 9 via the drive unit 10. After that, the control device 7 performs the operation of step S11.
According to the embodiment 1 described above, the controller 7 calculates the estimated value of the total ventilation rate of the car 4 by adding the estimated value of the ventilation rate of the car 4 related to driving by the ventilation fan 9, the estimated value of the ventilation rate of the car 4 related to opening of the car door 6 of the car 4, and the estimated value of the ventilation rate of the car 4 related to traveling of the car 4. The controller 7 stops the driving of the ventilation fan 9 when the estimated value of the integrated ventilation amount of the car 4 exceeds a preset threshold value. Therefore, the inside of the car 4 can be appropriately ventilated. As a result, the power consumption of the ventilation fan 9 can be suppressed while maintaining the comfort inside the car 4.
At this time, no new equipment is required. Therefore, the comfort of the car 4 can be maintained while suppressing the cost.
The estimated value of the ventilation amount of the car 4 related to driving by the ventilation fan 9 may be added to the estimated value of the ventilation amount of the car 4 related to opening of the car door 6 of the car 4 to calculate the estimated value of the total ventilation amount of the car 4. In this case, too, the inside of the car 4 can be appropriately ventilated with a certain degree of accuracy.
The control device 7 determines whether or not to stop the driving of the ventilation fan 9 based on a threshold value corresponding to a ventilation stop line that changes depending on the season. Therefore, the driving of the ventilation fan 9 can be stopped at a more appropriate timing.
Further, whether or not to stop the driving of the ventilation fan 9 may be determined based on a threshold value that changes according to the time zone. In this case, the driving of the ventilation fan 9 can be stopped at a more appropriate timing.
In the elevator in which the hoisting machine 2 is installed on the ceiling of the hoistway 1, the driving of the ventilation fan 9 may be controlled in the same manner as in embodiment 1. In addition, in an elevator provided with a machine room, the driving of the ventilation fan 9 may be controlled in the same manner as in embodiment 1. In these cases, the interior of the car 4 can be ventilated appropriately.
Next, an example of the control device 7 will be described with reference to fig. 12.
Fig. 12 is a hardware configuration diagram of a control device as a ventilation control device for an elevator according to embodiment 1.
The respective functions of the control device 7 can be realized by a processing circuit. For example, the processing circuit is provided with at least 1 processor 100a and at least 1 memory 100b. For example, the processing circuit includes at least 1 dedicated hardware 200.
When the processing circuit includes at least 1 processor 100a and at least 1 memory 100b, each function of the control device 7 is realized by software, firmware, or a combination of software and firmware. At least one of the software and the firmware is described as a program. At least one of the software and the firmware is stored in at least 1 memory 100b. The at least 1 processor 100a reads out and executes the program stored in the at least 1 memory 100b, thereby realizing each function of the control device 7. The at least one processor 100a is also referred to as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a DSP. For example, the at least one memory 100b is a nonvolatile or nonvolatile semiconductor memory such as RAM, ROM, flash memory, EPROM, EEPROM, or the like, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD, or the like.
In the case of a processing circuit having at least 1 dedicated piece of hardware 200, the processing circuit is implemented, for example, by a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof. For example, each function of the control device 7 is realized by a processing circuit. For example, the respective functions of the control device 7 are realized by a processing circuit in a lump.
The functions of the control device 7 may be partially implemented by dedicated hardware 200, and the other parts may be implemented by software or firmware. For example, the functions of the ventilation amount estimation unit 7a and the ventilation fan control unit 7b may be realized by a processing circuit as dedicated hardware 200, and functions other than the functions of the ventilation amount estimation unit 7a and the ventilation fan control unit 7b may be realized by at least 1 processor 100a reading and executing a program stored in at least 1 memory 100b.
In this way, the processing circuit implements the functions of the control device 7 by hardware 200, software, firmware, or a combination thereof.
Possibility of industrial utilization
As described above, the ventilation control device for an elevator of the present invention can be used in an elevator system.
Description of the reference symbols
1: a hoistway; 2: a traction machine; 3: a main rope; 4: a car; 5: a counterweight; 6: a car door; 7: a control device; 7a: a ventilation volume estimation unit; 7b: a ventilator control unit; 8: a door switch; 9: a ventilation fan; 10: a drive device; 100a: a processor; 100b: a memory; 200: hardware.
Claims (3)
1. An elevator ventilation control device, comprising:
a ventilation rate estimating unit that calculates an estimated value of a total ventilation rate of a car by adding an estimated value of a ventilation rate of the car, which is related to driving of a ventilation fan of the car of the elevator, to an estimated value of a ventilation rate of the car, which is related to opening of a car door of the car; and
and a ventilation fan control unit that stops driving of the ventilation fan when the estimated value of the integrated ventilation rate calculated by the ventilation rate estimation unit exceeds a preset threshold value.
2. An elevator ventilation control device, comprising:
a ventilation amount estimation unit that calculates an estimated value of a total ventilation amount of a car by adding an estimated value of a ventilation amount of the car involved in driving of a ventilation fan of the car of an elevator to an estimated value of a ventilation amount of the car involved in opening of a car door of the car and an estimated value of a ventilation amount of the car involved in traveling of the car; and
and a ventilation fan control unit that stops driving of the ventilation fan when the estimated value of the integrated ventilation rate calculated by the ventilation rate estimation unit exceeds a preset threshold value.
3. The ventilation control device for an elevator according to claim 1 or 2,
the ventilation fan control unit determines whether to stop driving of the ventilation fan according to a threshold value that varies according to a season or a time period.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/011758 WO2020188798A1 (en) | 2019-03-20 | 2019-03-20 | Elevator ventilation control device for controlling ventilation in car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113474274A CN113474274A (en) | 2021-10-01 |
| CN113474274B true CN113474274B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980093018.1A Active CN113474274B (en) | 2019-03-20 | 2019-03-20 | Ventilation control device for elevator for controlling ventilation in car |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6881698B2 (en) |
| KR (1) | KR102338033B1 (en) |
| CN (1) | CN113474274B (en) |
| WO (1) | WO2020188798A1 (en) |
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- 2019-03-20 KR KR1020217018953A patent/KR102338033B1/en active IP Right Grant
- 2019-03-20 JP JP2020573377A patent/JP6881698B2/en active Active
- 2019-03-20 CN CN201980093018.1A patent/CN113474274B/en active Active
- 2019-03-20 WO PCT/JP2019/011758 patent/WO2020188798A1/en active Application Filing
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| JP2011121767A (en) * | 2009-12-14 | 2011-06-23 | Mitsubishi Electric Building Techno Service Co Ltd | Ventilation control system in elevator car |
| JP2013170032A (en) * | 2012-02-20 | 2013-09-02 | Toshiba Elevator Co Ltd | Elevator car ventilation control device |
| CN104229572A (en) * | 2013-06-20 | 2014-12-24 | 株式会社日立制作所 | Elevator |
| JP2015160697A (en) * | 2014-02-27 | 2015-09-07 | 三菱電機株式会社 | Elevator control device |
| CN105173952A (en) * | 2014-06-05 | 2015-12-23 | 三菱电机株式会社 | Control device and control method for elevators |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102338033B1 (en) | 2021-12-10 |
| JPWO2020188798A1 (en) | 2021-04-08 |
| KR20210084640A (en) | 2021-07-07 |
| WO2020188798A1 (en) | 2020-09-24 |
| JP6881698B2 (en) | 2021-06-02 |
| CN113474274A (en) | 2021-10-01 |
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