JP2007062905A - Dew condensation prevention device for car of elevator and elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent dew condensation from occurring on an outer peripheral surface of a car of an elevator when the inside of the car of the elevator is cooled down. <P>SOLUTION: The dew condensation prevention device has a dry air supply part 2 mounted to the elevator car 1, and a nozzle body 3 which is mounted to the elevator car 1, connected to the dry air supply part 2, and has a nozzle 12 where the dry air supplied from the dry air supply part 2 is blown toward the outer peripheral surface of the elevator car 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator car dew condensation prevention device and an elevator, and more particularly, to an elevator car dew condensation prevention device provided with a cooling device for cooling the inside of an elevator car and an elevator provided with this elevator car dew condensation prevention device.

For example, as described in Patent Document 1 below, in order to make the ride comfort of an elevator car comfortable, a cooling device is installed on the upper part of the elevator car, and cooling air is supplied from the cooling device into the elevator car. There is known an elevator car that supplies a car.
Japanese Patent Laid-Open No. 09-25075

  When cooling air is supplied into the elevator car from the cooling system, a temperature difference occurs between the temperature inside the elevator car and the temperature outside the elevator car, and this temperature difference and the humidity outside the elevator car. When the value reaches a certain value, condensation occurs on the outer peripheral surface of the elevator car.

  When condensation occurs on the outer peripheral surface of the elevator car, the metal portion on the outer peripheral surface of the elevator car is likely to rust due to the generated condensation. In addition, the generated condensation may flow down as water droplets, and the water droplets that have flowed down may adhere to the electrical system device, causing the device to malfunction.

  In order to prevent the occurrence of condensation on the outer peripheral surface of the elevator car, it is conceivable to apply a heat insulating material to the outer wall plate of the elevator car. However, there is a case where the heat insulating material is peeled off due to partial imperfect bonding of the heat insulating material or deterioration of the adhesive used for the bonding. Then, dew condensation occurs on the outer surface of the outer wall plate corresponding to the part where the heat insulating material is not fully applied or the part where the heat insulating material is peeled off.

  SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and its purpose is to prevent condensation in an elevator car that prevents condensation on the outer peripheral surface of the elevator car when the inside of the elevator car is cooled. It is providing an elevator provided with the prevention device and the dew condensation prevention device of this elevator car.

  A first feature according to an embodiment of the present invention is an apparatus for preventing dew condensation in an elevator car. A dry air supply unit attached to the elevator car, and a dry air supply unit attached to the elevator car and connected to the dry air supply unit. And a nozzle body having a nozzle from which the dry air supplied from the dry air supply section blows out toward the outer peripheral surface of the elevator car.

  The 2nd characteristic concerning an embodiment of the invention is that an elevator is provided with the dew condensation prevention device of the elevator car concerning the 1st characteristic.

  According to the present invention, it is possible to reliably prevent the occurrence of condensation on the outer peripheral surface of the elevator car.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the dew condensation prevention device for an elevator car according to the first embodiment of the present invention is attached to the elevator car 1 and dried by being attached to the elevator car 1. And a plurality of nozzle bodies 3 connected to the air supply unit 2. The elevator equipped with the dew condensation prevention device for the elevator car includes an elevator car 1, a hoisting machine that winds up a rope that suspends the elevator car 1, and an elevator car 1 that is suspended from the other end of the rope. And a counterweight that is raised and lowered in the opposite direction.

  The elevator car 1 includes a car body 4 formed in a hexahedron-shaped box shape and a car frame 5. The car body portion 4 has a ceiling plate 6 and a floor plate (not shown) opposed in the vertical direction, and three of the four surfaces between the ceiling plate 6 and the floor plate are surrounded by the side plate 7, A door (not shown) is provided on the remaining surface between the plate 6 and the floor plate. The car frame 5 includes a pair of upright frames 8 arranged at positions sandwiching the opposing two side plates 7, and an upper beam 9 connected to the upper ends of the pair of upright frames 8 and arranged in parallel with the ceiling plate 6. And a lower beam (not shown) connected to the lower ends of the pair of upright frames 8 and the lower surface of the floor board. A car sheave (not shown) on which a rope (not shown) for raising and lowering the elevator car 1 is wound around the upper beam 9 and a cooling device for supplying cooling air into the car body 4 (Not shown).

  The dry air supply unit 2 is a part that generates dry air (hereinafter referred to as dry air) with low moisture content by dehumidifying the air sucked from outside, and supplies the generated dry air. (Not shown), a desiccant rotor (not shown) formed of zeolite or silica gel, a heater, and the like. A mounting arm 10 is connected to the upper beam 9, and the dry air supply unit 2 is connected to the mounting arm 10.

  The nozzle body 3 is formed in a long rectangular tube shape having a length dimension substantially the same as the vertical dimension of the car body portion 4, and is attached to the outer surface of the side plate 7 with the longitudinal direction facing the vertical direction. Yes. A supply hose 11 to which dry air generated in the dry air supply unit 2 is supplied is connected to the upper end portion of the nozzle body 3. The nozzle body 3 is formed with a plurality of nozzles 12 that eject the supplied dry air toward the outer surface of the side plate 7 that is a part of the outer peripheral surface of the elevator car 1. The nozzles 12 are formed at equal intervals along the longitudinal direction of the nozzle body 3, and the opening area of each nozzle 12 is formed larger as the nozzle 12 located below. The arrows shown in FIG. 1 indicate the flow of dry air supplied from the dry air supply unit 2 to the nozzle body 3 and the flow of dry air ejected from the nozzle 12. The direction in which the dry air is ejected from the nozzle 12 is a direction along the outer surface of the side plate 7 and is a direction orthogonal to the ascending / descending direction of the elevator car 1.

  An operation panel (not shown) for driving the cooling device and the dry air supply unit 2 is provided inside the car body 4. By performing a setting operation on this operation panel, it is possible to perform an on / off switching operation, a strength switching operation of the cooling device, an on / off switching operation, and a strength switching operation of the dry air supply unit 2.

  In such a configuration, when an operation on the operation panel is performed and the cooling device is turned on, the cooling air generated in the cooling device is supplied into the car body 4. By supplying the cooling air into the car body 4, a temperature difference is generated between the temperature inside the car body 4 and the temperature outside the car body 4. When the humidity reaches a certain value, condensation occurs on the outer surface of the side plate 7. Condensation on the outer surface of the side plate 7 is more likely to occur as the temperature difference between the inside and outside of the car body 4 increases and the humidity in the hoistway increases.

  Therefore, when the cooling device is turned on, an operation on the operation panel is performed as necessary, and the dry air supply unit 2 is turned on. By turning on the dry air supply unit 2, dry air is generated in the dry air supply unit 2, and the generated dry air is supplied to the nozzle body 3 via the supply hose 11. The dry air supplied to the nozzle body 3 is ejected from each nozzle 12. The dry air ejected from the nozzle 12 is ejected along the outer surface of the side plate 7, so that the humidity of the air layer in contact with the outer surface of the side plate 7 is lowered and the occurrence of condensation on the outer surface of the side plate 7 is prevented.

  Here, the opening area of the plurality of nozzles 12 formed in each nozzle body 3 is such that the nozzle 12 located below the nozzle body 3, that is, the nozzle 12 farther from the position where the supply hose 11 is connected. Largely formed. As a result, the amount of dry air ejected from each nozzle 12 can be made uniform, and condensation can be prevented from occurring in the entire area of the side plate 7 in the vertical direction.

  Further, since the dry air ejected from the nozzle 12 is ejected along the outer surface of the side plate 7 in the horizontal direction perpendicular to the lifting direction of the elevator car 1, the blown dry air can reach the entire area of the side plate 7 in the horizontal direction. It is possible to prevent dew condensation from occurring in the entire area of the side plate 7 in the horizontal direction.

  In the first embodiment, the case where the area from which the dry air is blown is the outer surface of the side plate 7 has been described as an example. However, this is because the side plate 7 is compared with the upper surface of the ceiling plate 6 and the lower surface of the floor plate. This is because heat in the basket main body 4 is easily transmitted and condensation is likely to occur. The upper surface of the ceiling board 6 and the lower surface of the floor board are also a part of the outer peripheral surface of the elevator car 1, and when condensation easily occurs in these parts, the nozzle body 3 is also attached to these parts. The same applies to the following embodiments.

(Second Embodiment)
A dew condensation prevention apparatus for an elevator car according to a second embodiment of the present invention will be described with reference to FIGS. Note that, in the second embodiment and subsequent embodiments, the same components as those in the embodiments described above are denoted by the same reference numerals, and redundant descriptions are omitted.

  The elevator car dew condensation prevention apparatus according to the second embodiment includes a temperature sensor 13 that measures the outer surface temperature of the side plate 7 that is the temperature of the outer peripheral surface of the elevator car 1, and a hoistway in which the elevator car 1 moves up and down. A humidity sensor 14 for measuring the humidity inside (not shown) is attached to the outer surface of the side plate 7.

  As shown in FIG. 3, the temperature sensor 13 and the humidity sensor 14 are connected to a control unit 15 that controls the dry air supply unit 2. The control unit 15 includes a RAM that stores temperature data that is a measurement result of the temperature sensor 13 and humidity data that is a measurement result of the humidity sensor 14, a ROM that stores a control program, and the temperature data and humidity stored in the RAM. And a CPU that calculates whether or not the dew condensation generation condition has been reached using the data, and outputs a signal corresponding to the calculation result to the dry air supply unit 2.

  The drive of the dry air supply part 2 is performed by the control part 15 as shown in FIG. First, the measurement result of the temperature sensor 13 is input to the control unit 15 (S1), and then the measurement result of the humidity sensor 14 is input to the control unit 15 (S2). Note that the input of the measurement result of the humidity sensor 14 may be first in the input order of the measurement result of the temperature sensor 13 and the measurement result of the humidity sensor 14.

  When the measurement result of the temperature sensor 13 and the measurement result of the humidity sensor 14 are input, it is determined whether or not the outer surface of the side plate 7 has reached the dew condensation generation condition based on the two input measurement results (S3). Here, means for determining whether or not the dew condensation occurrence condition has been reached is executed. If it is determined that the dew condensation occurrence condition is not reached (NO in S3), it is again determined whether the dew condensation occurrence condition has been reached based on the newly input measurement result of the temperature sensor 13 and the measurement result of the humidity sensor 14. To be judged.

  If it is determined in step S3 that the dew condensation generation condition has been reached (YES in S3), a drive signal is output to the dry air supply unit 2 (S4). A means for driving is executed.

  By outputting a drive signal to the dry air supply unit 2, the dry air supply unit 2 is driven, and dry air is generated in the dry air supply unit 2. The generated dry air is supplied to the nozzle body 3 via the supply hose 11 and ejected from each nozzle 12 of the nozzle body 3. The dry air ejected from the nozzle 12 is ejected along the outer surface of the side plate 7, so that the humidity of the air layer in contact with the outer surface of the side plate 7 is lowered and the occurrence of condensation on the outer surface of the side plate 7 is prevented.

  In such a configuration, according to the elevator car dew condensation prevention apparatus according to the second embodiment, the outer surface of the side plate 7 is subject to the dew condensation generation condition based on the measurement result of the temperature sensor 13 and the measurement result of the humidity sensor 14. The dry air supply unit 2 is automatically driven when the dew condensation generation condition is reached.

  For this reason, the dry air supply unit 2 is not driven even though the outer surface of the side plate 7 does not reach the dew generation condition, and the power consumption can be reduced.

  Further, the dry air supply unit 2 is not driven in spite of the fact that the outer surface of the side plate 7 has reached the dew generation condition, and the generation of dew condensation can be reliably prevented.

(Third embodiment)
An elevator car dew condensation prevention apparatus according to a third embodiment of the present invention will be described with reference to FIGS.

  In the elevator car dew condensation prevention device according to the third embodiment, temperature sensors 13 a for measuring the outer surface temperature of each side plate 7 are attached to the outer surfaces of the three side plates 7, respectively, and the elevator is attached to the outer surface of one side plate 7. A humidity sensor 14 for measuring the humidity in a hoistway (not shown) in which the car 1 moves up and down is attached.

  Each supply hose 11 that supplies dry air from the dry air supply unit 2 to each nozzle body 3 is provided with an electromagnetic valve 16 that is an intermittent portion that intermittently blows out the dry air from the nozzle 12 for each nozzle body 3. ing.

  As shown in FIG. 6, the three temperature sensors 13 a and the humidity sensor 14 are connected to a control unit 15 a that controls the dry air supply unit 2 and the electromagnetic valve 16. The control unit 15a includes a RAM that stores temperature data that is a measurement result of the temperature sensor 13a and humidity data that is a measurement result of the humidity sensor 14, a ROM that stores a control program, and temperature data and humidity stored in the RAM. And a CPU that calculates which outer surface of the side plate 7 has reached the dew condensation generation condition using the data, and outputs a signal corresponding to the calculation result to the dry air supply unit 2 and the electromagnetic valve 16.

  The drive of the dry air supply part 2 and the solenoid valve 16 is performed by the control part 15a as shown in FIG. First, the measurement result of the temperature sensor 13a is input to the control unit 15 (S11), and then the measurement result of the humidity sensor 14 is input to the control unit 15a (S12). In addition, the input of the measurement result of the humidity sensor 14 may precede the input order of the measurement result of the temperature sensor 13a and the measurement result of the humidity sensor 14.

  When the measurement result of the temperature sensor 13a and the measurement result of the humidity sensor 14 are input, it is determined whether or not the outer surface of each side plate 7 has reached the dew generation condition based on the two types of input measurement results ( S13) Here, means for determining whether or not the dew generation condition has been reached for each side plate 7 is executed. When it is determined that the outer surfaces of all the side plates 7 do not reach the dew condensation generation condition (NO in S13), each side plate 7 is determined based on the newly input measurement result of the temperature sensor 13a and the measurement result of the humidity sensor 14. It is determined again whether or not the dew condensation occurrence condition has been reached.

  If it is determined in step S13 that there is a side plate 7 determined to have reached the dew condensation generation condition (YES in S13), a drive signal is output to the dry air supply unit 2 (S14), where the dry air A means for driving the supply unit 2 is executed.

  Furthermore, a valve opening signal is output to the electromagnetic valve 16 of the supply hose 11 connected to the nozzle body 3 that blows dry air to the side plate 7 that has reached the dew condensation generation condition (S15). Means for driving the electromagnetic valve 16 is executed.

  By outputting a drive signal to the dry air supply unit 2, the dry air supply unit 2 is driven, and dry air is generated in the dry air supply unit 2. Further, when a valve opening signal is output to the electromagnetic valve 16, the dry air generated in the dry air supply unit 2 is supplied to the nozzle body 3 via the supply hose 11, and the supplied nozzle body 3 is supplied. From each nozzle 12. The dry air ejected from the nozzle 12 is ejected along the outer surface of the side plate 7, so that the humidity of the air layer in contact with the outer surface of the side plate 7 is lowered and the occurrence of condensation on the outer surface of the side plate 7 is prevented.

  In such a configuration, according to the elevator car dew condensation prevention device according to the third embodiment, the side plate 7 is provided for each side plate 7 based on the measurement result of the temperature sensor 13 a and the measurement result of the humidity sensor 14. It is determined whether or not the outer surface has reached the dew generation condition, and dry air is blown out only to the outer surface of the side plate 7 that has reached the dew generation condition.

  For this reason, when the side plate 7 that has reached the dew condensation generation condition is one surface or two surfaces, it suffices to blow dry air only to the outer surfaces of those side plates 7, and to the outer surfaces of all the side plates 7. Compared with the case where dry air is blown out, the amount of dry air blown out can be reduced. For this reason, the output of the dry air supply part 2 which produces | generates dry air can be lowered | hung, and reduction of power consumption can be aimed at.

  Further, by determining whether or not the dew condensation occurrence condition has been reached for each of the three side plates 7, it is possible to prevent the occurrence of a situation in which it is impossible to detect that one of the side plates 7 has reached the dew condensation occurrence condition. It is possible to reliably prevent the occurrence of condensation.

  In the third embodiment, the temperature sensor 13a is provided for each side plate 7, and the case where it is determined whether or not the dew generation condition is reached for each side plate 7 is described as an example. Two or more temperature sensors may be attached every 7 and it may be determined whether or not each side plate 7 is divided into a plurality of regions and reaches the dew condensation generation condition.

(Fourth embodiment)
An elevator car dew condensation prevention apparatus according to a fourth embodiment of the present invention will be described with reference to FIGS.

  In the elevator car dew condensation prevention apparatus according to the fourth embodiment, the nozzle body 3a to which dry air is supplied from the dry air supply unit 2 is shorter than the vertical dimension of the car main body 4 (for example, It is formed to 1/2 to 1/4) of the vertical dimension of the car body 4. A plurality of rails 17 extending in the vertical direction are connected to the outer surface of the side plate 7, and a nozzle body 3 a is attached to each rail 17. The nozzle body 3a is attached to the rail 17 such that the nozzle body 3a is vertically movable along the rail 17 by a moving mechanism (not shown) without the nozzle body 3a being detached from the rail 17.

  The moving mechanism includes a rack (not shown) provided in parallel with the rail 17 along the rail 17, a pinion (not shown) that meshes with the rack, a nozzle body 3 a, and a rotating shaft connected to the pinion. And a motor 19.

  A plurality of temperature sensors 13b for measuring the outer surface temperature of each side plate 7 are attached to the outer surface of each side plate 7 along the vertical direction (moving direction of the nozzle body 3a), and the elevator car 1 moves up and down on the outer surface of one side plate 7. A humidity sensor 14 for measuring the humidity in the hoistway (not shown) is attached.

  Each supply hose 11 that supplies dry air from the dry air supply unit 2 to each nozzle body 3a is provided with an electromagnetic valve 16 that is an intermittent portion that intermittently blows out the dry air from the nozzle 12 for each nozzle body 3a. ing.

  As shown in FIG. 9, the plurality of temperature sensors 13 b and humidity sensors 14 are connected to a control unit 15 b that controls the dry air supply unit 2, the electromagnetic valve 16, and the motor 19. The control unit 15b includes a RAM that stores temperature data that is a measurement result of the temperature sensor 13b and humidity data that is a measurement result of the humidity sensor 14, a ROM that stores a control program, and temperature data and humidity stored in the RAM. And a CPU for calculating which position in the vertical direction on the outer surface of which side plate 7 has reached the dew condensation generation condition using the data, and signals corresponding to the calculation result to the dry air supply unit 2 and the solenoid valve 16 and the motor 19.

  The drive of the dry air supply part 2, the electromagnetic valve 16, and the motor 19 is performed by the control part 15b as shown in FIG. First, the measurement result of the temperature sensor 13b is input to the control unit 15b (S21), and then the measurement result of the humidity sensor 14 is input to the control unit 15b (S22). In addition, the input of the measurement result of the humidity sensor 14 may precede the input order of the measurement result of the temperature sensor 13b and the measurement result of the humidity sensor 14.

  When the measurement result of the temperature sensor 13b and the measurement result of the humidity sensor 14 are input, whether the vertical regions of the outer surface of each side plate 7 have reached the dew condensation generation condition based on the two types of input measurement results It is determined whether or not (S23), and means for determining whether or not the dew condensation generation condition has been reached for each region of the outer surface of each side plate 7 is executed. When it is determined that all the regions on the outer surface of all the side plates 7 do not reach the dew condensation generation condition (NO in S23), based on the newly input measurement result of the temperature sensor 13b and the measurement result of the humidity sensor 14. It is determined again whether or not the dew condensation generation condition has been reached for each region of the outer surface of each side plate 7.

  If it is determined in step S23 that a certain area on the outer surface of any of the side plates 7 has reached the dew condensation generation condition (YES in S23), a drive signal is output to the dry air supply unit 2 ( S24) Here, means for driving the dry air supply unit 2 is executed.

  Furthermore, a movement signal for moving the nozzle body 3a to the area that has reached the dew generation condition is output to the motor 19 attached to the nozzle body 3a that can move to the area that has reached the dew generation condition (S25). Here, the means for moving the nozzle body 3a to the area that has reached the dew condensation generation condition is executed.

  Further, a valve opening signal is output to the electromagnetic valve 16 of the supply hose 11 connected to the nozzle body 3a that has moved to the region where the dew condensation generation condition has been reached (S26). A means for driving is executed.

  By outputting a drive signal to the dry air supply unit 2, the dry air supply unit 2 is driven, and dry air is generated in the dry air supply unit 2. Further, when a drive signal is output to the motor 19, the nozzle body 3a driven by the motor 19 moves to a region where the dew condensation generation condition is reached. Further, when a valve opening signal is output to the electromagnetic valve 16, the dry air generated in the dry air supply unit 2 is supplied to the nozzle body 3a via the supply hose 11, and the supplied nozzle body 3a. From each nozzle 12. The dry air ejected from the nozzle 12 is ejected along the outer surface of the side plate 7, so that the humidity of the air layer in contact with the outer surface of the side plate 7 is lowered and the occurrence of condensation on the outer surface of the side plate 7 is prevented.

  In such a configuration, according to the elevator car dew prevention device according to the fourth embodiment, the vertical direction of the outer surface of each side plate 7 is based on the measurement result of the temperature sensor 13b and the measurement result of the humidity sensor 14. It is determined whether or not the dew condensation generation condition has been reached for each of a plurality of areas along the line, the nozzle body 3a is moved toward the area that has reached the dew condensation generation condition, and the dew generation condition is changed from the nozzle 12 of the moved nozzle body 3a Blow dry air only to the area reached.

  For this reason, when only a partial region of a certain side plate 7 reaches the dew condensation generation condition, it is only necessary to blow dry air to only that region, and the entire side plate 7 having the region reaching the dew condensation generation condition is dried. Compared with the case of blowing out air, the amount of blown out dry air can be reduced. For this reason, the output of the dry air supply part 2 which produces | generates dry air can be lowered | hung, and reduction of power consumption can be aimed at.

  In addition, by determining whether or not the dew condensation generation condition has been reached in a plurality of areas for each side plate 7, it is impossible to detect that a part of the area on the side plate 7 has reached the dew generation condition. Generation | occurrence | production can be prevented and condensation generation | occurrence | production can be prevented reliably.

(Fifth embodiment)
An elevator car dew condensation prevention apparatus according to a fifth embodiment of the present invention will be described with reference to FIGS.

  In the elevator car dew condensation prevention apparatus according to the fifth embodiment, each nozzle body 3 is provided with a variable mechanism 20 that varies the direction in which dry air is ejected from the nozzles 12 in the vertical direction. The variable mechanism 20 is provided at a position facing each nozzle 12 and is capable of rotating in a vertical direction around a fulcrum 21 and a wire that is connected to all the guide plates 22 and extends in the vertical direction. 23 and a motor 24 connected to one end of the wire 23 to move the wire 23 up and down. The motor 24 is driven in conjunction with the lifting operation of the elevator car 1.

  FIG. 11 shows the elevator car 1 when it is lifted. When the elevator car 1 is raised, the motor 24 is driven by a control unit (not shown), and the means for driving the variable mechanism 20 is executed to move the wire 23 to the lower position. When the wire 23 moves to the lower position, each guide plate 22 rotates downward about the fulcrum 21, and each guide plate 22 is inclined upward toward the nozzle 12. As a result, the dry air supplied into the nozzle body 3 flows while being guided by the guide plate 22 as indicated by an arrow, and is ejected obliquely upward from the nozzle 12. And the dry air which blows off from the nozzle 12 turns diagonally upward, and when the elevator car 1 moves upward, the dry air which blows off from the nozzle 12 spreads along the outer surface of the side plate 7 in the horizontal direction. Therefore, the dry air ejected from the nozzle 12 can reach the entire area of the side plate 7 in the horizontal direction, and condensation can be prevented from occurring in the entire area of the side plate 7 in the horizontal direction.

  FIG. 12 shows the elevator car 1 when it is lowered. When the elevator car 1 is lowered, the motor 24 is driven by a control unit (not shown), and the means for driving the variable mechanism 20 is executed to move the wire 23 to the upper position. As the wire 23 moves to the upper position, each guide plate 22 rotates upward about the fulcrum 21, and each guide plate 22 is inclined downward toward the nozzle 12. As a result, the dry air supplied into the nozzle body 3 flows while being guided by the guide plate 22 as indicated by an arrow, and is ejected obliquely downward from the nozzle 12. And the dry air which blows off from the nozzle 12 turns diagonally downward, and when the elevator car 1 moves downward, the dry air blown from the nozzle 12 spreads along the outer surface of the side plate 7 in the horizontal direction. Therefore, the dry air ejected from the nozzle 12 can reach the entire area of the side plate 7 in the horizontal direction, and condensation can be prevented from occurring in the entire area of the side plate 7 in the horizontal direction.

  FIG. 13 shows the elevator car 1 when it is stopped. When the elevator car 1 is stopped, the motor 24 is driven by a control unit (not shown), and the means for driving the variable mechanism 20 is executed, so that the wire 23 moves to an intermediate position between the vertical positions. By moving the wire 23 to the intermediate position, each guide plate 22 is in a posture facing the nozzle 12 in the horizontal direction. As a result, the dry air supplied into the nozzle body 3 flows while being guided by the guide plate 22 as indicated by an arrow, and is blown horizontally from the nozzle 12, and the dry air blown from the nozzle 12 is applied to the outer surface of the side plate 7. Along the horizontal direction. Therefore, the dry air ejected from the nozzle 12 can reach the entire area of the side plate 7 in the horizontal direction, and condensation can be prevented from occurring in the entire area of the side plate 7 in the horizontal direction.

  In such a configuration, according to the elevator car dew prevention device according to the fifth embodiment, not only when the elevator car 1 is stopped, but also when the elevator car 1 is raised and lowered. The dry air ejected from 12 can be spread over the entire area in the horizontal direction along the outer surface of the side plate 7. Therefore, even in a situation where the elevator car 1 is continuously operated, it is possible to prevent dew condensation from occurring in the entire horizontal region of the side plate 7.

(Sixth embodiment)
An anti-condensation device for an elevator car according to a sixth embodiment of the present invention will be described with reference to FIG.

  In the elevator car dew condensation prevention apparatus according to the sixth embodiment, the cover 26 that forms the flow path 25 through which the dry air blown from the nozzle 12 flows between the elevator car 1 and the side plate 7 of the elevator car 1 is provided in the elevator car 1. Is attached. Although various materials can be used for the cover 26, a synthetic resin plate that can be easily reduced in weight is preferable.

  In such a configuration, the dry air ejected from the nozzle 12 stays in the flow path 25 and takes a long time until it is separated from the side plate 7 and diffused into the hoistway. Thereby, even if the amount of the dry air ejected from the nozzle 12 is reduced, the humidity of the air layer in contact with the outer surface of the side plate 7 can be lowered efficiently, and the power consumption for driving the dry air supply unit 2 can be reduced. In addition, the occurrence of condensation can be reliably prevented.

1 is a perspective view showing a dew condensation preventing device for an elevator car according to a first embodiment of the present invention. It is a perspective view which shows the dew condensation prevention apparatus of the elevator car which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the electrical connection of the dew condensation prevention apparatus of the elevator car. It is a flowchart which shows the control operation | movement of the dew condensation prevention apparatus of the elevator car. It is a perspective view which shows the dew condensation prevention apparatus of the elevator car which concerns on the 3rd Embodiment of this invention. It is a block diagram which shows the electrical connection of the dew condensation prevention apparatus of the elevator car. It is a flowchart which shows the control operation | movement of the dew condensation prevention apparatus of the elevator car. It is a perspective view which shows the dew condensation prevention apparatus of the elevator car which concerns on the 4th Embodiment of this invention. It is a block diagram which shows the electrical connection of the dew condensation prevention apparatus of the elevator car. It is a flowchart which shows the control operation | movement of the dew condensation prevention apparatus of the elevator car. It is a vertical front view which shows the state at the time of the raising of the elevator car in the dew prevention apparatus of the elevator car which concerns on the 5th Embodiment of this invention. It is a vertical front view which shows the state at the time of the descent | fall of the elevator car in the dew condensation prevention apparatus of the elevator car. It is a vertical front view which shows the state at the time of the stop of the elevator car in the dew condensation prevention apparatus of the elevator car. It is a perspective view which shows the dew condensation prevention apparatus of the elevator car which concerns on the 6th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator car 2 Dry air supply part 3 Nozzle body 3a Nozzle body 12 Nozzle 13 Temperature sensor 13a Temperature sensor 13b Temperature sensor 14 Humidity sensor 16 Intermittent part 20 Variable mechanism 26 Cover

Claims (8)

A dry air supply unit mounted on the elevator car;
A nozzle body having a nozzle attached to the elevator car and connected to the dry air supply unit, and the dry air supplied from the dry air supply unit is jetted toward the outer peripheral surface of the elevator car;
An anti-condensation device for an elevator car characterized by comprising:   The anti-condensation of an elevator car according to claim 1, wherein a plurality of the nozzles are provided in the nozzle body, and the nozzles have an opening area in which the amount of the dry air ejected from each nozzle is uniform. apparatus. A temperature sensor for measuring the temperature of the outer peripheral surface of the elevator car;
A humidity sensor for measuring the humidity in the hoistway where the elevator car goes up and down;
Means for determining whether or not a dew condensation occurrence condition has been reached based on the measurement result of the temperature sensor and the measurement result of the humidity sensor;
Means for driving the dry air supply unit when the dew condensation generation condition is reached;
The dew condensation prevention device for an elevator car according to claim 1, further comprising: A plurality of temperature sensors for individually measuring the temperatures of a plurality of regions on the outer peripheral surface of the elevator car;
A humidity sensor for measuring the humidity in the hoistway where the elevator car goes up and down;
An intermittent portion for intermittently discharging the dry air from the nozzle for each region;
Means for determining whether or not a dew generation condition has been reached for each region based on the measurement result of the temperature sensor and the measurement result of the humidity sensor;
Means for driving the dry air supply unit when any of the regions reaches a dew condensation generation condition;
Means for driving the intermittent portion;
The dew condensation prevention device for an elevator car according to claim 1, further comprising: A plurality of temperature sensors for individually measuring the temperatures of a plurality of regions on the outer peripheral surface of the elevator car;
A humidity sensor for measuring the humidity in the hoistway where the elevator car goes up and down;
A moving mechanism for moving the nozzle body to two or more different regions;
Means for determining whether or not a dew generation condition has been reached for each region based on the measurement result of the temperature sensor and the measurement result of the humidity sensor;
Means for driving the dry air supply unit when any of the regions reaches a dew condensation generation condition;
Means for driving the moving mechanism to move the nozzle body to the region that has reached the dew condensation generation condition;
The dew condensation prevention device for an elevator car according to claim 1, further comprising: A variable mechanism that varies the direction in which the dry air is ejected from the nozzle up and down;
Means for driving the variable mechanism in a direction in which a direction in which the dry air is ejected from the nozzle coincides with an elevation direction of the elevator car;
The dew condensation prevention device for an elevator car according to any one of claims 1 to 5, further comprising:   The cover according to any one of claims 1 to 6, further comprising a cover that is attached to the elevator car and that forms a flow path through which dry air ejected from the nozzle flows between the elevator car and an outer peripheral surface of the elevator car. Dew condensation prevention device for elevator car as described.   The elevator provided with the dew condensation prevention apparatus of the elevator car as described in any one of the said Claims 1 thru | or 7.

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