elevator

Abstract

To provide an elevator capable of suppressing the occurrence of condensation on a brake device even when the temperature of the brake device is different from the temperature of the environment. [Solution] The elevator is equipped with a brake device that brakes a sheave to which a car rope is attached, a device temperature detection unit that detects the device temperature, which is the temperature of the brake device, an environmental temperature detection unit that detects the environmental temperature, which is the temperature of the environment around the brake device, a suppression means that operates to suppress the formation of condensation in the brake device, and a processing unit that controls the operation of the suppression means based on the detected device temperature and environmental temperature.

Description

[Technical Field]

[0001] The present specification relates to an elevator. [Background technology]

[0002] Conventionally, for example, an elevator includes a brake device that brakes a sheave on which a car rope is fastened, a device temperature detection unit that detects the temperature of the brake device, an environmental humidity detection unit that detects the humidity of the environment around the brake device, and a processing unit (for example, Patent Document 1). The processing unit determines whether condensation has occurred on the brake device based on the detected temperature of the brake device and the environmental humidity. If the processing unit determines that condensation has occurred, it runs the car without load to prevent condensation from occurring on the brake device.

[0003] Incidentally, the temperature of the brake device may differ from the temperature of the environment. For example, but not limited to, when the temperature of the environment changes significantly (rising or falling) and the temperature of the brake device is slow to follow the change, the temperature of the brake device may differ from the temperature of the environment. In the elevator disclosed in Patent Document 1, the temperature of the brake device may differ from the temperature of the environment, which may cause condensation to form on the brake device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 4-53773 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, an object of the present invention is to provide an elevator that can prevent condensation from occurring on the brake device even when the temperature of the brake device is different from the temperature of the environment. [Means for solving the problem]

[0006] [1] The elevator is a braking device for braking a sheave on which a cage rope is hung; a device temperature detection unit that detects a device temperature, which is the temperature of the brake device; an environmental temperature detection unit that detects an environmental temperature that is the temperature of the environment of the brake device; suppression means operable to suppress condensation from occurring in the brake device; and a processing unit that controls the operation of the suppression means based on the detected device temperature and the detected environmental temperature.

[0007] [2] Also, the elevator in [1] above, an environmental humidity detection unit for detecting the environmental humidity, the processing unit calculates an environmental dew point based on the detected environmental temperature and environmental humidity; the processing unit executes the operation of the suppression means when an operation requirement is satisfied, the operational requirements include satisfying a first requirement; The first requirement is that the detected device temperature is equal to or lower than a first set temperature based on the calculated environmental dew point. The following configuration is also possible.

[0008] [3] Also, the elevator in [1] above, an environmental humidity detection unit for detecting the environmental humidity, the processing unit calculates an environmental dew point based on the detected environmental temperature and environmental humidity; the processing unit executes the operation of the suppression means when an operation requirement is satisfied, the operational requirements include satisfying at least one of a first requirement and a second requirement; the first requirement is that the detected device temperature is equal to or lower than a first set temperature based on the calculated environmental dew point; The second requirement is that the detected environmental humidity is equal to or greater than a first set humidity. The following configuration is also possible.

[0009] [4] In addition, any one of the elevators [1] to [3] above, A landing door is provided to open and close the entrance and exit of the elevator shaft, The brake device is disposed inside the hoistway; The operation of the suppression means includes an opening operation of the landing door to open the entrance. The following configuration is also possible.

[0010] [5] Also, the elevator in [4] above, a landing temperature detection unit that detects a landing temperature, which is the temperature of the landing; a landing humidity detection unit that detects the humidity of the landing, The processing unit calculates a landing dew point that is a dew point of the landing based on the detected landing temperature and landing humidity, The processing unit executes an opening operation of the landing door when an operation requirement is satisfied, the operational requirements include satisfying a third requirement; The third requirement is that the detected device temperature is greater than a second set temperature based on the calculated landing dew point. The following configuration is also possible.

[0011] [6] In addition, the elevators described in [4] or [5] above, including [2] or [3] above, a landing temperature detection unit that detects a landing temperature, which is the temperature of the landing; a landing humidity detection unit that detects the humidity of the landing, The processing unit calculates a landing dew point that is a dew point of the landing based on the detected landing temperature and landing humidity, The processing unit executes an opening operation of the landing door when the operation requirements are satisfied, The operational requirements include satisfying a fourth requirement; The fourth requirement is that the calculated landing dew point is lower than a third set temperature based on the calculated environmental dew point. The following configuration is also possible.

[0012] [7] In addition, any one of the elevators [4] to [6] above, a landing humidity detection unit that detects landing humidity, which is the humidity of the landing, The processing unit executes an opening operation of the landing door when an operation requirement is satisfied, The operational requirements include satisfying a fifth requirement; The fifth requirement is that the detected landing humidity is lower than a second set humidity. The following configuration is also possible.

[0013] [8] In addition, in any one of the elevators [1] to [7] above, The braking device is A rotating part that rotates integrally with the sheave; a braking portion that presses and contacts the rotating portion to brake the rotating portion, the elevator includes an air sending unit that sends air toward the rotating unit, The operation of the suppression means includes an air supply operation of the air supply unit. The following configuration is also possible. [Brief explanation of the drawings]

[0014] [Figure 1] Schematic diagram of an elevator according to an embodiment. [Figure 2] 1A and 1B are diagrams of a hoisting machine according to the embodiment (a: front view, b: side view); [Figure 3] Control block diagram of an elevator according to the embodiment. [Figure 4] FIG. 1 is a control flow diagram of an elevator according to the embodiment. [Figure 5] FIG. 10 is a front view of a hoist according to another embodiment. [Figure 6] FIG. 10 is a front view of a hoist according to still another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0015] In each drawing, the dimensions of the components may be enlarged or reduced relative to the actual dimensions, for example, to facilitate understanding, and the dimensional ratios between the drawings may not be consistent. Note that in each drawing, for example, to facilitate understanding, some of the components may be omitted.

[0016] Terms including ordinal numbers such as "first" and "second" are used to describe various components, but these terms are used only to distinguish one component from another, and the components are not particularly limited by these terms. The number of components including ordinal numbers is not particularly limited, and may be, for example, one. Furthermore, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

[0017] An embodiment of an elevator will be described below with reference to Figures 1 to 4. Note that the following embodiment is provided as an example to help understand the configuration of the elevator, and is not intended to limit the configuration of the elevator.

[0018] As shown in FIG. 1, the elevator 1 may include, for example, a car 2 for people (passengers) to ride in, a car rope 3 connected to the car 2, a counterweight 4 connected to the car rope 3, a hoist 5 that drives the car rope 3 to move the car 2 and the counterweight 4 in the vertical direction D3, a car rail 6 that guides the car 2, and a counterweight rail 7 that guides the counterweight 4.

[0019] In this embodiment, both ends of the car ropes 3 are fixed to the upper part (or lower part) of the hoistway X1, and the car ropes 3 are wound around the sheaves of the car 2 and the counterweight 4, respectively, thereby connecting the car ropes 3 to the car 2 and the counterweight 4, respectively. However, the present invention is not limited to this configuration. For example, a configuration in which a first end of the car ropes 3 is fixed to the car 2 and a second end of the car ropes 3 is fixed to the counterweight 4 may also be used.

[0020] In each figure, the first direction D1 is the first horizontal direction D1, the second direction D2 is the second horizontal direction D2 which is a horizontal direction perpendicular to the first horizontal direction D1, and the third direction D3 is the up-down direction D3 which is perpendicular to each of the horizontal directions D1 and D2, and is the lifting direction in which the car 2 and the counterweight 4 rise and fall.

[0021] The elevator 1 is equipped with hall doors 8 that move between an open position that opens the entrance and a closed position that closes it in order to open and close the entrances to the hoistway X1 and the hall X2. The car 2 may also be equipped with, for example, a car room 2a for passengers to ride in, car doors 2b that move between an open position that opens the entrance to the car room 2a and a closed position that closes it, and a door drive unit 2c that performs the opening and closing operation of the car doors 2b, as in this embodiment.

[0022] As a result, the door drive unit 2c moves the car door 2b, which opens and closes the entrance to the car chamber 2a. Then, as the car door 2b opens and closes the entrance to the car chamber 2a, the hall door 8 of the hall X2 where the car 2 is stopped opens and closes the entrance to the hall X2 in conjunction with the car door 2b, which may be configured as follows.

[0023] As shown in Fig. 2, the hoisting machine 5 includes, for example, a sheave 5a around which the car rope 3 is wound, and a brake device 9 that brakes the sheave 5a. The hoisting machine 5 may also include, for example, a hoisting machine main body 5b fixed to the hoistway X1, and a car drive unit 5c that rotates the sheave 5a. The hoisting machine 5 (brake device 9) is disposed inside the hoistway X1 (see Fig. 1).

[0024] The brake device 9 includes a rotating part 9a that rotates integrally with the sheave 5a, and a braking part 9b that applies pressure to and comes into contact with the rotating part 9a in order to brake the rotating part 9a. As a result, the rotating part 9a includes a braking surface 9c that comes into contact with the braking part 9b, and the braking part 9b brakes the rotating part 9a by generating friction between the braking surface 9c and the rotating part 9a.

[0025] For example, as in this embodiment, the rotating portion 9a may be a disk formed in a circular plate shape, and the braking portion 9b may be configured to pressurize and contact the braking surface 9c of the rotating portion 9a by sandwiching the rotating portion 9a in the thickness direction (rotation axis direction) D1 of the rotating portion 9a. That is, the brake device 9 may be, for example, a disk-type brake as in this embodiment.

[0026] However, the brake device 9 is not limited to such a configuration, and may be a drum brake. Specifically, the rotating portion 9a may be a drum formed in a cylindrical (or columnar) shape, and the braking portion 9b may be configured to press and contact a braking surface, which is the outer peripheral surface (or inner peripheral surface) of the rotating portion 9a, in the radial direction of the rotating portion 9a.

[0027] The brake device 9 may also include a device main body 9d, for example, as in this embodiment. The device main body 9d may also serve as the hoisting machine main body 5b, for example, as in this embodiment. The brake device 9 may also include a cover (not shown) that covers the rotating portion 9a.

[0028] The elevator 1 also includes a device temperature detection unit 11 that detects the device temperature, which is the temperature of the brake device 9. The device temperature detection unit 11 is not particularly limited and may be configured to detect the device temperature, and may be, for example, a contact-type temperature sensor or a non-contact-type temperature sensor.

[0029] For example, as in this embodiment, the device temperature detection unit 11 may detect the temperature of a portion (in FIG. 2, the device main body 9d arranged near the rotating unit 9a) that is at approximately the same temperature as the rotating unit 9a (particularly, the braking surface 9c). However, the device temperature detection unit 11 is not limited to this configuration, and may detect the temperature of the rotating unit 9a (particularly, the braking surface 9c), for example.

[0030] 1, the elevator 1 is equipped with an environmental temperature detection unit 12 that detects the environmental temperature, which is the temperature of the environment of the brake device 9, an environmental humidity detection unit 13 that detects the environmental humidity, which is the humidity of the environment of the brake device 9, a landing temperature detection unit 14 that detects the landing temperature, which is the temperature of the landing X2, and a landing humidity detection unit 15 that detects the landing humidity, which is the humidity of the landing X2. The elevator 1 also has a processing unit 20 that controls each unit of the elevator 1.

[0031] The temperature detectors 12 and 14 are not particularly limited and may be any type of temperature sensor as long as they are capable of detecting the temperature of the air at the detection position. The humidity detectors 13 and 15 are not particularly limited and may be any type of humidity sensor as long as they are capable of detecting the humidity of the air at the detection position.

[0032] The detection positions of the environmental temperature detection unit 12 and the environmental humidity detection unit 13 are positions inside the section (in this embodiment, the elevator shaft X1) where the brake device 9 is arranged. Although not particularly limited, the detection positions of the environmental temperature detection unit 12 and the environmental humidity detection unit 13 may be positions that are within a distance of 1.0 m from the brake device 9 (particularly, the rotating unit 9a), for example.

[0033] The detection positions of the landing temperature detection unit 14 and the landing humidity detection unit 15 may be, for example, as in this embodiment, at the position of landing X2, which is closest to the brake device 9. Although not particularly limited, the detection positions of the landing temperature detection unit 14 and the landing humidity detection unit 15 may be, for example, positions that are within 2.0 m of the entrances and exits of the elevator shaft X1 and landing X2.

[0034] 3, the elevator 1 may include, for example, an input unit 16 to which various data are input, and an output unit 17 to which various data are output. Although not particularly limited, the input unit 16 may be, for example, a switch (push button switch, select switch, etc.), a touch panel, etc., and the output unit 17 may be, for example, a display unit that displays data (for example, an electronic bulletin board, an indicator light), a sound generation unit that emits data as sound (for example, a buzzer, a speaker), a signal output unit that outputs a signal to the outside (for example, a central monitoring panel, etc.), etc.

[0035] Furthermore, although not shown, the input unit 16 may include, for example, a hall input unit arranged at hall X2, and a car input unit arranged inside car 2. Then, for example, call registration instruction data for car 2 and the like may be input to the hall input unit, and further, for example, destination floor registration instruction data, door open instruction data, door close instruction data and the like for car 2 may be input to the car input unit.

[0036] Furthermore, although not shown, the output unit 17 may include, for example, a hall output unit arranged at hall X2 and a car output unit arranged inside car 2. The hall output unit may output, for example, registered call data for car 2, current position data for car 2, etc., and the car output unit may output, for example, registered destination floor data for car 2, current position data for car 2, etc.

[0037] The processing unit 20 may include, for example, an acquisition unit 21 that acquires each piece of data from each of the units 11 to 16, a storage unit 22 that stores each piece of data, a calculation unit 23 that calculates each piece of data, and a control unit 24 that controls each of the units 2c, 5c, and 9. The processing unit 20 may also be a computer that includes, for example, a processor such as a CPU and an MPU (for example, the calculation unit 23, the control unit 24), memories such as a ROM and a RAM (for example, the acquisition unit 21, the storage unit 22), various interfaces, and the like.

[0038] As a result, the processor executes the program stored in the memory, and the software and hardware work together to realize the units 21 to 24 of the processing unit 20. The processing unit 20 may be configured, for example, by a software circuit, or may be configured, for example, by a hardware circuit, or may be configured, for example, by a combination of a software circuit and a hardware circuit.

[0039] The processing unit 20 may be configured as a single device, or may be configured as a plurality of devices that can communicate with each other. Specifically, the units 21 to 24 of the processing unit 20 may be provided in a single device, or may be distributed across a plurality of devices that can communicate with each other.

[0040] Incidentally, the elevator 1 is equipped with suppression means 10 that operates to suppress the occurrence of condensation on the brake device 9 (particularly, the rotating portion 9a). For example, in this embodiment, the suppression means 10 includes the hall door 8. Although not particularly limited, the suppression means 10 may include, for example, the car drive unit 5c, which is also a heating element, and the hall door 8, as in this embodiment.

[0041] As a result, the motor 5c generates heat as the motor 5c operates, which can increase the temperature of the brake device 9 (rotating portion 9a). Therefore, it is possible to prevent condensation from forming on the brake device 9 (rotating portion 9).

[0042] The brake device 9 is disposed inside the hoistway X1, and when the landing door 8 opens, the entrance to the hoistway X1 is opened. This allows air from the landing X2 to enter the inside of the hoistway X1. This makes it possible to prevent condensation from forming on the brake device 9.

[0043] Moreover, the operation of the motor 5c causes the car 2 to travel, which agitates the air inside the hoistway X1. This allows the air at the landing X2 to enter the inside of the hoistway X1, and also agitates the air in the hoistway X1. Therefore, the occurrence of condensation on the brake device 9 can be effectively suppressed.

[0044] Note that there is no particular limitation on the method of travel of the car 2 by the operation of the restraining means 10. For example, the car 2 may be configured to stop at all of the landings X2 in order from top to bottom, and at the landing X2 where the car 2 has stopped, the landing door 8 is opened and closed, and these operations are repeated.

[0045] Also, for example, the car 2 may be configured to stop only at a specific landing X2, and at the specific landing X2, the landing door 8 is opened and closed, and then the car 2 travels upward and downward before stopping again at the specific landing X2, and these operations are repeated. The specific landing X2 may be, for example, the landing X2 closest to the brake device 9, or may be, for example, the landing X2 where the landing temperature detection unit 14 and the landing humidity detection unit 15 are arranged.

[0046] The configuration of the elevator 1 according to this embodiment has been described above, and next, the control of suppression of condensation in the brake device 9 according to this embodiment will be described with reference to Fig. 4. Note that the following method is provided as an example to help understand the control of suppression of condensation in the brake device 9, and is not intended to limit the control of suppression of condensation in the brake device 9.

[0047] As shown in FIG. 4, first, the calculation unit 23 calculates the environmental dew point, which is the dew point of the environment of the brake device 9, based on the environmental temperature detected by the environmental temperature detection unit 12 and the environmental humidity detected by the environmental humidity detection unit 13 (S1).

[0048] Then, when the device temperature detected by the device temperature detection unit 11 is equal to or lower than the first set temperature and the first requirement is satisfied ("Y" in S2), the calculation unit 23 determines that operation of the suppression means 10 is necessary. The first set temperature is a temperature based on the environmental dew point calculated by the calculation unit 23. As a result, when the device temperature is equal to or lower than the first set temperature and condensation occurs on the brake device 9, it is determined that operation of the suppression means 10 is necessary.

[0049] Although not particularly limited, for example, the first set temperature may be a temperature that is 0°C to 5°C higher than the environmental dew point calculated by the calculation unit 23. For example, in this embodiment, the first set temperature is the environmental dew point calculated by the calculation unit 23.

[0050] Furthermore, even if the device temperature detected by the device temperature detection unit 11 is higher than the first set temperature ("N" in S2), or even if the environmental humidity detected by the environmental humidity detection unit 13 is equal to or higher than the first set humidity and the second requirement is satisfied ("Y" in S3), the calculation unit 23 determines that operation of the suppression means 10 is necessary. As a result, even if the device temperature is higher than the first set temperature, if the environmental humidity is high and condensation is likely to occur in the brake device 9, it is determined that operation of the suppression means 10 is necessary.

[0051] For example, when the environmental humidity is about 70%, water molecules are likely to begin adsorbing to the braking surface 9c, which is a metal surface, and when the environmental humidity is about 80%, a water film with a thickness (about 1 μm) that maximizes the corrosion rate is likely to adhere to the braking surface 9c, which is a metal surface. Therefore, although not particularly limited, the first set humidity may be set to, for example, 70% to 80%. For example, in this embodiment, the first set humidity is set to 80%.

[0052] Then, when it is determined that operation of the suppression means 10 is necessary because at least one of the first requirement and the second requirement is satisfied ("Y" in S2, "Y" in S3), the calculation unit 23 calculates the landing dew point, which is the dew point of landing X2, based on the landing temperature detected by the landing temperature detection unit 14 and the landing humidity detected by the landing humidity detection unit 15 (S4).

[0053] Thereafter, when the calculation unit 23 determines that all of the third to fifth requirements are met and the operation requirements are met ("Y" in S5, "Y" in S6, "Y" in S7), the control unit 24 executes the operation of the suppression means 10 (S8). That is, the operation of the motor 5c is executed, and the opening operation of the landing door 8 is executed.

[0054] Here, the third requirement is that the device temperature detected by the device temperature detection unit 11 is higher than the second set temperature (S5). The second set temperature is a temperature based on the hall dew point calculated by the calculation unit 23. As a result, the device temperature is higher than the second set temperature based on the hall dew point, and therefore the air at the hall X2 is air that is less likely to cause condensation on the brake device 9. Therefore, when the air at the hall X2 is in an appropriate state, the air at the hall X2 can be introduced into the elevator shaft X1.

[0055] Although not particularly limited, for example, the second set temperature may be set to a temperature that is 0°C to 5°C higher than the landing dew point calculated by the calculation unit 23. For example, in the present embodiment, the second set temperature is set to the calculated landing dew point.

[0056] Furthermore, a fourth requirement is that the landing dew point calculated by the calculation unit 23 is lower than a third set temperature (S6). The third set temperature is a temperature based on the environmental dew point calculated by the calculation unit 23. As a result, the landing dew point is lower than the third set temperature based on the environmental dew point, and therefore the air at landing X2 is less likely to cause condensation in the brake device 9 than the air inside the hoistway X1. Therefore, when the air at landing X2 is in an appropriate state, the air at landing X2 can be introduced into the hoistway X1.

[0057] Although not particularly limited, for example, the third set temperature may be a temperature that is 0°C to 5°C lower than the environmental dew point calculated by the calculation unit 23. For example, in this embodiment, the third set temperature is the calculated environmental dew point.

[0058] Furthermore, the fifth requirement is that the landing humidity detected by the landing humidity detection unit 15 is lower than the second set humidity (S7). As a result, for example, because the landing humidity is lower than the second set humidity, the air at landing X2 is unlikely to cause condensation in the brake device 9. Therefore, when the air at landing X2 is in an appropriate state, the air at landing X2 can be introduced into the elevator shaft X1.

[0059] Although not particularly limited, the second set humidity may be, for example, a humidity that is 0% to 10% different (higher or lower) than the first set humidity, or may be, for example, 70% to 80%. For example, in this embodiment, the second set humidity is the same as the first set humidity, that is, 80%.

[0060] Then, after the operation of the suppression means is executed (S8), if at least one of the first and second requirements is met ("Y" in S9) and all of the third to fifth requirements are met ("Y" in S10), and the calculation unit 23 determines that the operation requirements are met, the control unit 24 maintains the operation of the suppression means 10 (S8).

[0061] On the other hand, if the calculation unit 23 determines that the operation requirements are not met after the suppression means 10 has been operated (S8) because both the first and second requirements are not met ("N" in S9) or because at least one of the third to fifth requirements is not met ("N" in S10), the control unit 24 stops the operation of the suppression means 10 (S11). Then, the suppression control is repeated (S1 to S11).

[0062] In this way, the operation of the suppression means 10 is controlled based on the detected device temperature, environmental temperature, environmental humidity, landing temperature, and landing humidity. The operation of the suppression means 10 can suppress the occurrence of condensation in the brake device 9. As a result, even if the device temperature is different from the environmental temperature, the occurrence of condensation in the brake device 9 can be suppressed.

[0063] Although not particularly limited, the control to suppress condensation may be executed, for example, when no data is input to the input unit 16 (car input unit, hall input unit). For example, the control to suppress condensation may be executed when a predetermined time (for example, nighttime, etc.) arrives or when no data is input to the input unit 16 for a set time (for example, 1 to 2 hours, etc.). As a result, when the control to suppress condensation is being executed, the car 2 runs with no load (no passengers on board).

[0064] For example, when control to suppress condensation is being executed, if data is input to the input unit 16 (car input unit, hall input unit), the control to suppress condensation may be stopped. Then, for example, the processing unit 20 may be configured to execute normal operation control, that is, to control the running of the car 2 based on the data input to the input unit 16.

[0065] As described above, the elevator 1 in this embodiment has the following features: a brake device 9 for braking the sheave 5a on which the car rope 3 is hung; a device temperature detection unit 11 for detecting a device temperature, which is the temperature of the brake device 9; an environmental temperature detection unit 12 that detects an environmental temperature that is the temperature of the environment of the brake device 9; suppression means 10 that operates to suppress the occurrence of condensation on the braking device 9; a processing unit (20) that controls the operation of the suppression means (10) based on the detected device temperature and the detected environmental temperature. This configuration is preferred.

[0066] According to this configuration, the operation of the suppression means 10 is controlled based on the detected device temperature and environmental temperature. The operation of the suppression means 10 can suppress the occurrence of condensation in the brake device 9. As a result, even if the temperature of the brake device 9 differs from the temperature of the environment, the occurrence of condensation in the brake device 9 can be suppressed.

[0067] In addition, the elevator 1, as in this embodiment, an environmental humidity detection unit 13 for detecting the environmental humidity, The processing unit 20 calculates an environmental dew point, which is a dew point of the environment, based on the detected environmental temperature and environmental humidity, The processing unit 20 executes the operation of the suppression means 10 when the operation requirements are satisfied, the operational requirements include satisfying a first requirement; The first requirement is that the detected device temperature is equal to or lower than a first set temperature based on the calculated environmental dew point. This configuration is preferred.

[0068] According to this configuration, the environmental dew point is calculated based on the detected environmental temperature and humidity. The first requirement is met when the detected device temperature is equal to or lower than a first set temperature based on the calculated environmental dew point. If the operation requirement is met based on this, the suppression means 10 operates, thereby suppressing condensation from forming on the brake device 9.

[0069] In addition, the elevator 1, as in this embodiment, an environmental humidity detection unit 13 for detecting the environmental humidity, The processing unit 20 calculates an environmental dew point, which is a dew point of the environment, based on the detected environmental temperature and environmental humidity, The processing unit 20 executes the operation of the suppression means 10 when the operation requirements are satisfied, the operational requirements include satisfying at least one of a first requirement and a second requirement; the first requirement is that the detected device temperature is equal to or lower than a first set temperature based on the calculated environmental dew point; The second requirement is that the detected environmental humidity is equal to or greater than a first set humidity. This configuration is preferred.

[0070] According to this configuration, the environmental dew point is calculated based on the detected environmental temperature and humidity. The first requirement is met when the detected device temperature is equal to or lower than a first set temperature based on the calculated environmental dew point. If the operation requirement is met based on this, the suppression means 10 operates, thereby suppressing condensation from forming on the brake device 9.

[0071] Furthermore, even if the detected device temperature is higher than the first set temperature and the first requirement is not met, the second requirement is met if the detected environmental humidity is equal to or higher than the first set humidity. Based on this, if the operation requirement is met, the suppression means 10 operates, thereby suppressing the occurrence of condensation in the brake device 9.

[0072] In addition, in the elevator 1, as in this embodiment, A landing door 8 is provided to open and close the entrance of the elevator shaft X1, The brake device 9 is disposed inside the elevator shaft X1, The operation of the suppression means 10 includes an opening operation of the landing door 8 that opens the entrance / exit, This configuration is preferred.

[0073] According to this configuration, the brake device 9 is disposed inside the hoistway X1, and the entrance to the hoistway X1 is opened by executing the opening operation of the landing door 8. This allows air from the landing X2 to enter the inside of the hoistway X1.

[0074] In addition, the elevator 1, as in this embodiment, a landing temperature detection unit 14 that detects the landing temperature, which is the temperature of the landing X2; a landing humidity detection unit 15 that detects landing humidity, which is the humidity of the landing X2; The processing unit 20 calculates a landing dew point that is a dew point of the landing X2 based on the detected landing temperature and landing humidity, The processing unit 20 executes the opening operation of the landing door 8 when the operation requirements are satisfied, the operational requirements include satisfying a third requirement; The third requirement is that the detected device temperature is greater than a second set temperature based on the calculated landing dew point. This configuration is preferred.

[0075] According to this configuration, the landing dew point, which is the dew point of landing X2, is calculated based on the detected landing temperature and landing humidity. Then, when the detected device temperature is higher than the second set temperature based on the calculated landing dew point, the third requirement is met. If the operation requirement is met based on this, the opening operation of the landing door 8 is executed. Therefore, when the air at landing X2 is in an appropriate condition, the air at landing X2 can be let into the interior of the elevator shaft X1.

[0076] In addition, the elevator 1, as in this embodiment, a landing temperature detection unit 14 that detects the landing temperature, which is the temperature of the landing X2; a landing humidity detection unit 15 that detects landing humidity, which is the humidity of the landing X2; The processing unit 20 calculates a landing dew point, which is a dew point of the landing, based on the detected landing temperature and landing humidity, The processing unit 20 executes the opening operation of the landing door 8 when the operation requirements are satisfied, The operational requirements include satisfying a fourth requirement; The fourth requirement is that the calculated landing dew point is lower than a third set temperature based on the calculated environmental dew point. This configuration is preferred.

[0077] According to this configuration, the landing dew point, which is the dew point of landing X2, is calculated based on the detected landing temperature and landing humidity. Then, when the calculated landing dew point is lower than a third set temperature based on the calculated environmental dew point, the fourth requirement is met. If the operation requirement is met based on this, the opening operation of the landing door 8 is executed. Therefore, when the air at landing X2 is in an appropriate condition, the air at landing X2 can be let into the interior of the elevator shaft X1.

[0078] In addition, the elevator 1, as in this embodiment, A landing humidity detection unit 15 is provided which detects landing humidity, which is the humidity of the landing X2, The processing unit 20 executes the opening operation of the landing door 8 when the operation requirements are satisfied, The operational requirements include satisfying a fifth requirement; The fifth requirement is that the detected landing humidity is lower than a second set humidity. This configuration is preferred.

[0079] According to this configuration, when the detected landing humidity is lower than the second set humidity, the fifth requirement is met. Based on this, when the operation requirement is met, the landing door 8 is opened. Therefore, when the air at the landing X2 is in an appropriate state, the air at the landing X2 can be introduced into the hoistway X1.

[0080] The elevator 1 is not limited to the configuration of the above-described embodiment, nor is it limited to the above-described effects. Furthermore, various modifications can be made to the elevator 1 without departing from the spirit of the present invention. For example, it is possible to arbitrarily select one or more of the configurations, methods, etc. of the various modified examples described below and adopt them in the configurations, methods, etc. of the above-described embodiment.

[0081] (A) In the elevator 1 according to the above embodiment, the suppression means 10 is configured to include the motor 5c and the hall door 8. Specifically, the suppression means 10 is configured to include first suppression means 10a (see FIG. 2) having the motor 5c and second suppression means 10b (see FIG. 1) having the hall door 8. However, the elevator 1 is not limited to this configuration.

[0082] (A-1) For example, the suppression means 10 may be configured to include only the first suppression means 10a having the motor 5c, without including the second suppression means 10b. With this configuration, the motor 5c generates heat as it operates, and the temperature of the brake device 9 can be increased. This makes it possible to suppress condensation from forming on the brake device 9.

[0083] (A-2) Furthermore, for example, the suppression means 10 may be configured not to include the first suppression means 10a, but to include only the second suppression means 10b having the landing door 8. According to such a configuration, when the landing door 8 opens, the entrance to the hoistway X1 is opened, allowing air from the landing X2 to enter the interior of the hoistway X1. This makes it possible to suppress condensation from occurring on the brake device 9.

[0084] (A-3) For example, as shown in Figures 5 and 6, the suppression means may include at least one of third suppression means 10c and fourth suppression means 10d that are different from the first suppression means 10a and second suppression means 10b. The suppression means may include at least one (one, two, three, or all four) of the first to fourth suppression means 10a to 10d.

[0085] (A-3-1) For example, as shown in FIG. 5, the third suppression means 10c may be configured to include a heating element 18 that heats the brake device 9 (particularly, the rotating portion 9a), and the heating element 18 may be a heater 18. This allows the heater 18, which is the heating element 18, to generate heat, thereby increasing the temperature of the brake device 9. This makes it possible to suppress condensation from forming on the brake device 9.

[0086] (A-3-2) For example, as shown in FIG. 6, the fourth suppression means 10d may be configured to include an air blower (e.g., a blower fan) 19 that blows air toward the rotating part 9a of the braking device 9. As a result, the air blower 19 blows air toward the rotating part 9a, so that the temperature of the rotating part 9a can be made closer to the temperature of the environment. This makes it possible to suppress condensation from occurring in the braking device 9.

[0087] In this way, in the elevator 1, as shown in FIG. The braking device 9 is A rotating portion 9a that rotates integrally with the sheave 5a; a braking portion 9b that presses and contacts the rotating portion 9a to brake the rotating portion 9a, The elevator 1 includes an air supply unit 19 that supplies air toward the rotating unit 9a, The operation of the suppression means 10 includes the air supply operation of the air supply unit 19. The following configuration is also possible.

[0088] According to this configuration, when the braking unit 9b presses and contacts the rotating unit 9a, the rotating unit 9a is braked, and the air supply unit 19, which is the suppression means 10d, supplies air toward the rotating unit 9a. This allows the temperature of the rotating unit 9a of the braking device 9 to approach the temperature of the environment. Therefore, the occurrence of condensation in the braking device 9 can be suppressed.

[0089] (B) Furthermore, in the elevator 1 according to the above embodiment, the operational requirements for executing the operation of the suppression means 10 are that at least one of the first and second requirements is satisfied, and that all of the third to fifth requirements are satisfied. Specifically, the elevator 1 is equipped with a device temperature detection unit 11, an environmental temperature detection unit 12, an environmental humidity detection unit 13, a landing temperature detection unit 14, and a landing humidity detection unit 15, and the processing unit 20 controls the operation of the suppression means 10 based on the detected device temperature, environmental temperature, environmental humidity, landing temperature, and landing humidity. However, the elevator 1 is not limited to this configuration.

[0090] For example, the operational requirements may be configured to satisfy, for example, one of the first to fifth requirements, or to satisfy, for example, two of the requirements, or to satisfy, for example, three of the requirements, or to satisfy, for example, four of the requirements, or to satisfy, for example, all five of the requirements.

[0091] (B-1) For example, the only operational requirement may be that the first requirement be satisfied. Specifically, the elevator 1 may be configured to include a device temperature detection unit 11, an environmental temperature detection unit 12, and an environmental humidity detection unit 13, and the processing unit 20 may control the operation of the suppression means 10 based on the detected device temperature, environmental temperature, and environmental humidity. In other words, the elevator 1 may not be configured to include a landing temperature detection unit 14 and a landing humidity detection unit 15.

[0092] (B-2) Furthermore, for example, the operational requirements may be configured to include satisfying a sixth requirement that is different from the first to fifth requirements. And, for example, the operational requirements may be configured to satisfy at least one of the first to sixth requirements. Although not particularly limited, a first example and a second example will be described below as examples of such a configuration.

[0093] (B-2-1) As a first example, the sixth requirement may be a relationship using the detected device temperature and the environmental temperature. Although not particularly limited, the sixth requirement may be that the device temperature is lower than the environmental temperature and the difference between the device temperature and the environmental temperature is equal to or greater than a fourth set temperature (for example, 5°C to 10°C).

[0094] With this configuration, the sixth requirement is met when the device temperature is lower than the ambient temperature and the difference between the measured temperature and the ambient temperature is equal to or greater than the fourth set temperature. Based on this, when the operation requirement is met, for example, at least one of the first, third, and fourth suppression means 10a, 10c, and 10d operates to raise the temperature of the brake device 9. This makes it possible to suppress condensation from forming in the brake device 9.

[0095] For example, the only operational requirement may be that the sixth requirement be satisfied. In such a configuration, the elevator 1 includes the device temperature detection unit 11 and the environmental temperature detection unit 12, and the processing unit 20 controls the operation of the suppression means 10 based on the detected device temperature and environmental temperature. In such a configuration, the elevator 1 may not include the environmental humidity detection unit 13, the landing temperature detection unit 14, and the landing humidity detection unit 15, for example.

[0096] (B-2-2) As a second example, the sixth requirement may be a relationship between the detected device temperature, the environmental temperature, and the environmental humidity. Although not particularly limited, the sixth requirement may be, for example, that the processing unit 20 calculates a fifth set temperature based on the environmental humidity, and that the sixth requirement is that the device temperature is lower than the environmental temperature and the difference between the device temperature and the environmental temperature is equal to or greater than the fifth set temperature (for example, 5°C to 10°C).

[0097] According to this configuration, the fifth set temperature is calculated based on the environmental humidity, and the sixth requirement is met when the device temperature is lower than the environmental temperature and the difference between the device temperature and the environmental temperature is equal to or greater than the fifth set temperature. Based on this, when the operation requirement is met, for example, at least one of the first, third, and fourth suppression means 10a, 10c, and 10d operates to raise the temperature of the brake device 9. This makes it possible to suppress condensation from forming on the brake device 9.

[0098] For example, the only operational requirement may be that requirement 6 be satisfied. In such a configuration, the elevator 1 includes a device temperature detection unit 11, an environmental temperature detection unit 12, and an environmental humidity detection unit 13, and the processing unit 20 controls the operation of the suppression means 10 based on the detected device temperature, environmental temperature, and environmental humidity.

[0099] In such a configuration, the elevator 1 may not include, for example, the hall temperature detection unit 14 and the hall humidity detection unit 15. In such a configuration, the elevator 1 may include, for example, the environmental temperature detection unit 12 and the environmental humidity detection unit 13, but the processing unit 20 may not calculate the environmental dew point.

[0100] (C) In addition, in the elevator 1 according to the above embodiment, the brake device 9 (the hoisting machine 5) is configured to be disposed inside the hoistway X1. However, the elevator 1 is not limited to such a configuration.

[0101] For example, the brake device 9 (hoisting machine 5) may be arranged inside a machine room provided at the top of the hoistway X1. In such a configuration, the detection positions of the environmental temperature detection unit 12 and the environmental humidity detection unit 13 are positions inside the machine room (the compartment where the brake device 9 is arranged).

[0102] (D) For example, the order of execution of each step, such as the operations, procedures, steps, and stages, in the methods and apparatuses shown in the claims, specifications, and drawings, can be implemented in any order, as long as the result of a previous step is not used in a subsequent step. For example, even if a description is made using "first," "next," etc. for convenience, it does not mean that execution must be performed in that order. [Explanation of symbols]

[0103] 1... elevator, 2... car, 2a... car room, 2b... car door, 2c... door drive unit, 3... car rope, 4... counterweight, 5... hoisting machine, 5a... sheave, 5b... hoisting machine main body, 5c... car drive unit (motor), 6... car rail, 7... weight rail, 8... landing door, 9... brake device, 9a... rotating unit, 9b... braking unit, 9c... braking surface, 9d... device main body, 10... restraining means, 10a... first restraining means, 10b... second Suppression means, 10c...third suppression means, 10d...fourth suppression means, 11...device temperature detection unit, 12...environmental temperature detection unit, 13...environmental humidity detection unit, 14...landing temperature detection unit, 15...landing humidity detection unit, 16...input unit, 17...output unit, 20...processing unit, 21...acquisition unit, 22...storage unit, 23...calculation unit, 24...control unit, D1...first horizontal direction, D2...second horizontal direction, D3...vertical direction, X1...hoistway, X2...landing

Claims

1. a braking device for braking a sheave on which a cage rope is hung; a device temperature detection unit that detects a device temperature, which is the temperature of the brake device; an environmental temperature detection unit that detects an environmental temperature that is the temperature of the environment of the brake device; an environmental humidity detection unit that detects environmental humidity, which is the humidity of the environment; suppression means operable to suppress condensation from occurring in the brake device; a processing unit that calculates an environmental dew point based on the detected environmental temperature and environmental humidity, the processing unit executes the operation of the suppression means when an operation requirement is satisfied, the operational requirements include satisfying at least one of a first requirement and a second requirement; the first requirement is that the detected device temperature is equal to or lower than a first set temperature based on the calculated environmental dew point; The second requirement is that the detected environmental humidity is equal to or greater than a first set humidity. Equipped with landing doors that open and close the entrance to the elevator shaft, the brake device is disposed inside the hoistway; The operation of the restraining means includes an opening operation of the landing door to open the entrance / exit.

2. a braking device for braking a sheave on which a cage rope is hung; a device temperature detection unit that detects a device temperature, which is the temperature of the brake device; an environmental temperature detection unit that detects an environmental temperature that is the temperature of the environment of the brake device; suppression means operable to suppress condensation from occurring in the brake device; a processing unit that controls the operation of the suppression means based on the detected device temperature and the detected environmental temperature, Equipped with landing doors that open and close the entrance to the elevator shaft, the brake device is disposed inside the hoistway; The operation of the restraining means includes an opening operation of the landing door to open the entrance / exit.

3. an environmental humidity detection unit for detecting the environmental humidity, The processing unit calculates an environmental dew point based on the detected environmental temperature and environmental humidity, the processing unit executes the operation of the suppression means when an operation requirement is satisfied, the operational requirements include satisfying a first requirement; 3. The elevator of claim 2, wherein the first requirement is that the detected device temperature is equal to or less than a first set temperature based on the calculated environmental dew point.

4. a landing temperature detection unit that detects a landing temperature, which is the temperature of the landing; a landing humidity detection unit that detects the humidity of the landing, The processing unit calculates a landing dew point that is a dew point of the landing based on the detected landing temperature and landing humidity, The processing unit executes an opening operation of the landing door when an operation requirement is satisfied, the operational requirements include satisfying a third requirement; 4. The elevator according to claim 1, wherein the third requirement is that the detected device temperature is greater than a second set temperature based on the calculated landing dew point.

5. an environmental humidity detection unit that detects environmental humidity, which is the humidity of the environment; a landing temperature detection unit that detects a landing temperature, which is the temperature of the landing; a landing humidity detection unit that detects the humidity of the landing, The processing unit calculates an environmental dew point based on the detected environmental temperature and environmental humidity, The processing unit calculates a landing dew point that is a dew point of the landing based on the detected landing temperature and landing humidity, The processing unit executes an opening operation of the landing door when an operation requirement is satisfied, the operational requirements include satisfying a fourth requirement; 4. The elevator according to claim 1, wherein the fourth requirement is that the calculated landing dew point is lower than a third set temperature based on the calculated environmental dew point.

6. A landing humidity detection unit is provided which detects the landing humidity, which is the humidity of the landing, The processing unit executes an opening operation of the landing door when an operation requirement is satisfied, The operational requirements include satisfying a fifth requirement, 4. The elevator according to claim 1, wherein the fifth requirement is that the detected landing humidity is lower than a second set humidity.

7. The braking device is A rotating part that rotates integrally with the sheave; a braking portion that presses and contacts the rotating portion to brake the rotating portion, the elevator includes an air sending unit that sends air toward the rotating unit, 4. The elevator according to claim 1, wherein the operation of the suppression means includes an air supply operation of the air supply unit.

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