JP2015147665A - elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator which can cool a heat generating part without increasing the number of components.SOLUTION: An elevator 1 comprises a car 120, a hollow cover 121, a heat generating part 2, and an atmospheric pressure control mechanism 3. The atmospheric pressure control mechanism 3 is disposed in the cover 121, sucks the air in the car 120 to control an atmospheric pressure in the car 120, and blows the sucked-in air on the heat generating part 2.

Description

  The present invention relates to an elevator capable of controlling the atmospheric pressure in a car in accordance with the raising / lowering operation of the car.

  In recent years, with the increase in the height of building structures, the lift distance of elevator cars has increased, and the lift speed of the cars has also increased. As the lift distance of the car becomes longer and the lift speed becomes faster, the change in atmospheric pressure in the car also becomes larger. And if the atmospheric pressure in the car changes suddenly, the passenger may be clogged or uncomfortable. In order to improve such inconvenience, for example, in the technique described in Patent Document 1, it is proposed to control the atmospheric pressure in the car in accordance with the raising / lowering operation of the car.

  Further, when the raising / lowering speed of the car increases, the air resistance received by the car during raising / lowering increases. And if air resistance becomes large, there also exists a problem that a car vibrates at the time of raising / lowering, and noise at the time of raising / lowering becomes large. In order to improve such a problem, for example, in the technique described in Patent Document 2, a streamlined cover is provided on the upper and lower sides of the car in the up-and-down direction via a vibration absorber. ing. The technique described in Patent Document 2 reduces air resistance during elevation by providing a streamline type cover.

  However, members that generate heat, such as an air conditioner and a control panel on which electronic components are mounted, are arranged on the upper part of the car. For this reason, when a cover is provided on the upper part of the car as in the technique described in Patent Document 2, air in the cover is trapped, so that the temperature in the cover rises due to heat generated from the air conditioner and the control panel. And when the temperature in a cover rose, there existed a possibility that the air-conditioning effect of an air conditioner might fall or a malfunction might arise in a control apparatus.

  In addition, the technology described in Patent Document 3 includes an air conditioner that cools the inside of the car, a duct into which the air in the car enters, and an elevator that has a fan that blows the air that has entered the duct to the control panel. Proposed. In the technique described in Patent Document 3, the control panel is cooled by blowing air in the car onto the control panel using a fan.

Japanese Patent Laid-Open No. 10-182039 JP-A-6-329372 Japanese Patent Laid-Open No. 2002-220166

  However, the technique described in Patent Document 3 has a problem that it is necessary to provide a duct for taking in air in the car and a fan in order to cool the control panel that is a heat generating part, and the number of parts increases. It was.

  In view of the above problems, an object of the present invention is to provide an elevator that can cool a heat generating portion without increasing the number of parts.

  In order to solve the above problems and achieve the object of the present invention, an elevator according to the present invention has a car that moves up and down in a hoistway, and controls the atmospheric pressure in the car. The elevator also includes a hollow cover, a heat generating unit, and an atmospheric pressure control mechanism. The cover is provided on the car and is formed in a streamline shape. The heat generating part is disposed in the cover and generates heat. The air pressure control mechanism is disposed in the cover, controls the air pressure in the car by sucking air in the car, and blows the sucked air to the heat generating part.

  According to the elevator of the present invention, the air in the car is blown to the heat generating portion by the air pressure control mechanism used when the air pressure in the car is controlled. Thereby, not only can the heat generating portion be effectively cooled, but there is no need to separately provide a fan for cooling the heat generating portion, so that an increase in the number of components can be prevented.

It is explanatory drawing shown typically which shows the 1st Example of an elevator of this invention. 1 is a schematic configuration diagram showing a car in a first embodiment of an elevator according to the present invention. It is explanatory drawing which shows the atmospheric | air pressure change of the inside of a car at the time of the fall in the 1st Example of an elevator of this invention, and the outer side of a car. It is a schematic block diagram which shows the passenger car in the 2nd Example of an elevator of this invention. 1 is a schematic configuration diagram showing a car in a first embodiment of an elevator according to the present invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator according to the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure. Moreover, although description is given in the following order, this invention is not necessarily limited to the following forms.
1. 1. First embodiment 1-1. Configuration of elevator 1-2. 1. Elevator pressure control operation Second embodiment example 3. FIG. Third embodiment

1. First embodiment example 1-1. First, a configuration of an elevator according to a first embodiment of the present invention (hereinafter referred to as “this example”) will be described with reference to FIG.
FIG. 1 is a schematic configuration diagram illustrating a configuration example of an elevator according to the present example, and FIG. 2 is a schematic configuration diagram illustrating an elevator car according to the present example.

  As shown in FIG. 1, an elevator 1 according to the present invention includes a hoistway 110 formed in a building structure, a passenger car 120 on which people and luggage are placed, a rope 130, a counterweight 140, and a hoisting machine. 100. The hoistway 110 is formed in a building structure, and a machine room 160 is provided on the top thereof.

  The hoisting machine 100 is disposed in the machine room 160 and raises and lowers the car 120 by winding a rope 130. Further, in the vicinity of the hoisting machine 100, a warping wheel 150 on which the rope 130 is mounted is provided.

  The counterweight 140 is set to approximately the same mass as that of the car 120 when not loaded. Therefore, the tension ratio between the ropes 130 on the side of the car 120 and the counterweight 140 is 1 when there is no object or person loaded in the car 120. As a result, the output of the hoisting machine 100 when there is no load can be kept low.

  The car 120 is formed in a hollow, substantially rectangular parallelepiped shape. The car 120 is connected to the counterweight 140 via the rope 130 and moves up and down in the hoistway 110.

  In addition, a hollow upper cover 121 is provided in the upper part of the car 120 in the up-and-down direction, and a lower cover 122 is provided in the lower part of the car 120 in the up-and-down direction. The surfaces of the upper cover 121 and the lower cover 122 facing the car 120 are formed in a planar shape parallel to the ascending / descending direction. Further, the portions other than the surface facing the car 120 on the upper cover 121 and the lower cover 122 are formed in a streamlined shape along the ascending / descending direction. As a result, the air resistance when the car 120 moves up and down in the hoistway 110 can be reduced, and vibration and noise can be reduced.

  As shown in FIG. 2, an air conditioner 2 that shows an example of a heat generating unit, an atmospheric pressure control mechanism 3, and the like are arranged at the upper part of the elevator car 120 in the vertical direction. The air pressure control mechanism 3 controls the air pressure in the car 120 when the car 120 moves up and down. A pressurizing blower 4 and a decompression blower 5 are provided. The air conditioner 2, the pressurization blower 4, and the decompression blower 5 are respectively disposed in the upper cover 121.

  The air conditioner 2 adjusts the temperature in the car 120. For example, in the summer when the outside air temperature becomes high, the air conditioner 2 sucks the air in the car 120 as indicated by an arrow A1, and sends the cooled air into the car 120 as indicated by an arrow A2.

  The pressurizing blower 4 blows air into the car 120 to raise the pressure of the car 120. The pressurizing blower 4 is provided with a pressurizing intake port 6 for sucking air and a pressurizing exhaust port 7 for exhausting air.

  A pressurization pipe 16 is connected to the pressurization air inlet 6 of the pressurization air blower 4. The pressurizing pipe 16 has an intake port 16a and an exhaust port 16b. An intake port 16 a of the pressurizing pipe 16 is provided in the upper cover 121. The exhaust port 16 b of the pressurization pipe 16 faces the pressurization intake port 6 of the pressurization blower 4.

  The decompression air blower 5 sucks air in the car 120 and lowers the atmospheric pressure of the car 120. The decompression blower 5 is provided with a decompression inlet 9 for sucking air and a decompression outlet 8 for exhausting air.

  A decompression pipe 11 is connected to the decompression exhaust port 8 of the decompression blower 5. The decompression pipe 11 has an intake port 11a, a first exhaust port 11b, and a second exhaust port 11c. That is, the exhaust side of the decompression pipe 11 is branched into two. And the branch part in the piping 11 for pressure reduction is provided with the flow divider 15 which divides the air to pass into two.

  The intake port 11 a faces the decompression exhaust port 8 of the decompression blower 5. Then, the air exhausted from the decompression exhaust port 8 passes through the decompression pipe 11. The first exhaust port 11 b is directed to the air conditioner 2, and the second exhaust port 11 c is directed to the pressurizing blower 4. The decompression pipe 11 guides the air sucked by the decompression blower 5 to the air conditioner 2 and the pressurization blower 4.

  Moreover, it is preferable to arrange | position the decompression exhaust port 8 of the ventilation part 5 for pressure reduction toward the direction where the air conditioner 2 and the ventilation part 4 for pressurization are arrange | positioned. Thereby, not only can the number of times of bending the decompression pipe 11 be reduced, but the length of the decompression pipe 11 can be shortened. As a result, it is possible to reduce the resistance to the tube wall that occurs when air passes through the decompression pipe 11 and to increase the blowing efficiency. Furthermore, in order to increase the blowing efficiency, it is preferable to set the inner diameter of the decompression pipe 11 as large as possible.

1-2. Next, an atmospheric pressure control operation of the elevator 1 will be described with reference to FIGS. 2 and 3.
FIG. 3 is an explanatory diagram showing changes in atmospheric pressure inside the car 120 and outside the car 120 when the car 120 is lowered.

  Here, the elevator 1 is moved up and down by three speed control patterns of an acceleration period, a constant speed period where the speed is constant, and a deceleration period. When the car 120 descends, the air pressure outside the car 120 changes in an S shape according to the descending speed of the car 120, as indicated by the dotted line in FIG. Further, when the atmospheric pressure control in the car 120 is not performed, the change in the air pressure in the car 120 changes in an S-shape according to the descending speed of the car 120 in the same manner as the change in the air pressure outside the car 120.

  In the constant speed period of the car 120, the amount of change in the pressure of the car 120 per unit time increases. The change in the atmospheric pressure may cause ear clogging or discomfort for passengers in the car 120. In order to eliminate passengers' clogging and discomfort, the elevator 1 of this example uses the atmospheric pressure control mechanism 3 to change the atmospheric pressure in the car 120 stepwise.

  First, after the descent operation of the car 120 is started, until the time T0 when the air pressure in the car 120 and the air pressure outside the car 120 become equal, the pressurizing air blower 4 is driven to enter the car 120. Bring in air. Thereby, the atmospheric pressure in the car 120 increases.

  When the pressurizing blower 4 is driven, the air outside the upper cover 121 is taken in by the intake port 16a of the pressurizing pipe 16 as indicated by an arrow B1. As for the temperature outside the upper cover 121, the taken-in air passes through the pressurizing pipe 16 and is sucked into the pressurizing air inlet 6 of the pressurizing air blower 4. The sucked air is sent into the car 120 from the pressurizing exhaust port 7 of the pressurizing blower 4 as indicated by an arrow B2.

  Further, the temperature outside the upper cover 121 is lower than the temperature inside the upper cover 121 heated by the heat generating part such as the air conditioner 2. Therefore, it is possible to prevent heated air from being sent into the car 120.

  Further, the object of the present invention can be achieved without providing the pressurizing pipe 16. When the pressurizing pipe 16 is not provided, it is preferable that the pressurizing inlet 6 is directed to the side opposite to the direction in which the air conditioner 2 that is a heat generating portion is disposed. In this way, by keeping the pressurization air intake 6 of the pressurization air blower 4 away from the air conditioner 2 serving as a heat source, the pressurization air blower 4 removes heated air around the air conditioner 2 from the pressurization air intake 6. Inhalation can be prevented. As a result, when air is sent to the car 120 and pressurized, it is possible to prevent the heated air from being fed into the car 120 from the pressurizing blower 4.

  Next, from the time T0 until the descending operation of the car 120 stops, the pressure reducing blower 5 is driven to suck the air in the car 120. As a result, the atmospheric pressure in the car 120 decreases.

  When the decompression air blower 5 is driven, the air in the passenger car 120 is sucked from the decompression air inlet 9 as indicated by an arrow C1. Here, the air in the car 120 is cooled by the air conditioner 2, and its temperature is lower than the air in the internal space of the upper cover 121.

  The air sucked from the decompression intake port 9 is exhausted from the decompression exhaust port 8 toward the intake port 11 a of the decompression pipe 11. The air exhausted to the intake port 11a is divided into two by the flow divider 15, and is exhausted from the first exhaust port 11b and the second exhaust port 11c as shown by arrows C2 and C3. That is, the air sucked in by the pressure reducing blower 5 is blown to the air conditioner 2 and the pressure blowing blower 4 through the pressure reducing pipe 11.

  As described above, the temperature in the car 120 sucked in by the decompression air blower 5 is lower than the temperature of the internal space of the upper cover 121. As a result, it is possible to effectively cool the air conditioner 2 and the pressurizing blower 4 by blowing cool air to the air conditioner 2 and the pressurizing blower 4 by the decompression blower 5. Efficiency can be improved.

  Further, in order to blow air to the air conditioner 2 and the pressurizing blower 4, the decompression blower 5 that controls the atmospheric pressure in the car 120 is used. Therefore, it is possible to cool the air conditioner 2 and the pressurizing blower 4 without providing a new fan, and it is possible to prevent the number of parts from increasing.

  When the car 120 rises, the decompression air blower 5 is first driven to lower the air pressure in the car 120, and then the pressurization air blower 4 is driven to reduce the air pressure in the car 120. Raise.

  As described above, an appropriate pressure change can be recognized by the passenger by changing the atmospheric pressure in the car 120 stepwise. As a result, the passenger can be swallowed, and ear clogging and discomfort can be eliminated at an early stage.

  In addition, although the example which changed the change of the atmospheric | air pressure in the passenger car 120 in steps was demonstrated in this example, it is not limited to this. For example, by changing the atmospheric pressure in the car 120 linearly and lowering the maximum value of the change in atmospheric pressure per unit time from the atmospheric pressure at the descent start altitude to the atmospheric pressure at the descent stop altitude, You may make it reduce clogging and discomfort.

2. Second Embodiment Next, an elevator according to a second embodiment of the present invention will be described with reference to FIG.
FIG. 4 is a schematic configuration diagram showing a configuration in the upper cover of the elevator according to the second embodiment.

  The elevator according to the second embodiment differs from the elevator 1 according to the first embodiment in that a chamber is provided in the upper cover 121. Therefore, here, the inside of the upper cover 121 will be described, and portions common to the elevator 1 according to the first embodiment will be denoted by the same reference numerals and redundant description will be omitted.

  As shown in FIG. 4, inside the upper cover 121 of the elevator 20, an air conditioner 2, a pressure control mechanism 3 including a pressurization blower 4 and a decompression blower 5, a decompression pipe 21, and a chamber 22 are provided. And a pressurizing pipe 23 and the like are arranged.

  The exhaust side of the decompression pipe 21 is branched into two. The decompression pipe 21 has an intake port 21a facing the decompression exhaust port 8 of the decompression air blower 5, a first exhaust port 21b, and a second exhaust port 21c. Further, a branching portion 25 that divides the air into two is provided at the branch portion in the decompression pipe 21.

  The first exhaust port 21 b is disposed toward the air conditioner 2, and the second exhaust port 21 c is disposed toward the chamber 22. The air sucked into the pressure reducing blower 5 as shown by the arrow C1 passes through the pressure reducing pipe 21 and is divided into two in the flow divider 25 as shown by the arrows C2 and C3. The divided air is blown to the air conditioner 2 and further fed into the chamber 22.

  The air in the passenger car 120 sucked by the decompression air blower 5 is sent into the chamber 22 through the decompression pipe 21. As described above, the air in the car 120 is cooled by the air conditioner 2. Therefore, the air in the chamber 22 is also cooled more than the air in the upper cover 121. It should be noted that not only the air exhausted from the pressure reducing blower 5 but also the air outside the upper cover 121 may be appropriately sucked into the chamber 22 as indicated by the arrow D1. The chamber 22 is connected to a pressurizing pipe 23.

  The pressurization pipe 23 has an intake port 23 a connected to the chamber 22 and an exhaust port 23 b connected to the pressurization intake port 6 of the pressurization blower 4. When the pressurizing air blowing unit 4 is driven, the pressurizing air blowing unit 4 sucks the air in the chamber 22 through the pressurizing pipe 23 as indicated by an arrow B1, and from the pressurizing exhaust port 7 as indicated by an arrow B2. Air is sent into the car 120.

  The temperature in the chamber 22 is lower than the temperature in the upper cover 121 as the cooled air in the car 120 is sent. The pressurizing air blowing unit 4 sucks the cooled air in the chamber 22, so that low-temperature air can be sent into the car 120 when the car 120 is pressurized. As a result, when the inside of the car 120 is pressurized, the temperature inside the car 120 can be prevented from rising, and the air conditioning efficiency of the air conditioner 2 can be increased.

  Since the other configuration is the same as that of the elevator 1 according to the first embodiment, a description thereof will be omitted. Also with the elevator 20 having such a configuration, it is possible to obtain the same operational effects as those of the elevator 1 according to the first embodiment described above.

3. Third Embodiment Next, a third embodiment of the elevator according to the present invention will be described with reference to FIG.
FIG. 5 is a schematic configuration diagram showing a configuration in the upper cover of the elevator according to the third embodiment.

  The elevator according to the third embodiment is different from the elevator 1 according to the first embodiment in the configuration of the atmospheric pressure control mechanism. Therefore, here, the atmospheric pressure control mechanism will be described, and portions common to the elevator 1 according to the first embodiment will be given the same reference numerals and redundant description will be omitted.

  As shown in FIG. 5, the air conditioner 2, the atmospheric pressure control mechanism 33, and the like are disposed inside the upper cover 121 of the elevator 30. The atmospheric pressure control mechanism 33 has a decompression exhaust port 38 and a decompression intake port 39. The air pressure control mechanism 33 lowers the air pressure in the car 120 by sucking air in the car 120 from the decompression air inlet 39 as indicated by an arrow C1. Then, the atmospheric pressure control mechanism 33 exhausts the air in the passenger car 120 sucked from the decompression intake port 39 from the decompression exhaust port 38 and blows it to the air conditioner 2.

  The air pressure control mechanism 33 of the elevator 30 according to the third embodiment controls the air pressure in the car 120 during ascent and descent only by pressure reduction control.

  Since the other configuration is the same as that of the elevator 1 according to the first embodiment, a description thereof will be omitted. Also with the elevator 30 having such a configuration, it is possible to obtain the same functions and effects as those of the elevator 1 according to the above-described first embodiment.

  In the elevator 30 according to the third embodiment, the example in which the atmospheric pressure control mechanism 33 for only the decompression control is provided has been described. However, the present invention is not limited to this. For example, pressure control and pressure reduction control may be performed with a single device. In this case, the exhaust port for decompression that exhausts air when decompressing is provided in the direction in which the air conditioner 2 that is the heat source unit is disposed. And the pressure inlet which sucks in the air at the time of pressurization is provided toward the direction opposite to the direction where the air conditioner 2 which is a heat source part is arrange | positioned. Thereby, it is possible to prevent the heated air around the air conditioner 2 from being sucked and fed into the car 120.

  The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention described in the claims. For example, in the above-described embodiment, the example in which the air conditioner 2 is applied as the heat generating unit has been described. However, the present invention is not limited to this. As the heat generating part, for example, a control panel on which electric parts are mounted, a fan, or other members that generate various kinds of heat are applied.

  DESCRIPTION OF SYMBOLS 1,20,30 ... Elevator, 2 ... Air-conditioner, 3,33 ... Air pressure control mechanism, 4 ... Pressurization ventilation part, 5 ... Depressurization ventilation part, 6 ... Pressurization inlet port, 7 ... Pressurization exhaust port, 8 , 38 ... Decompression exhaust port, 9, 39 ... Decompression intake port, 11, 21 ... Decompression piping, 11a, 21a ... Intake port, 11b, 21b ... First exhaust port, 11c, 21c ... Second exhaust 15, 25 ... shunt, 16, 23 ... piping for pressurization, 22 ... chamber, 100 ... hoist, 110 ... hoistway, 121 ... upper cover (cover), 122 ... lower cover, 130 ... rope, 140 ... Balance weight, 150 ... Burdle, 160 ... Machine room

Claims (7)

In an elevator that has a car that moves up and down in the hoistway and controls the atmospheric pressure in the car,
A streamlined hollow cover provided in the car;
A heat generating part that emits heat and is disposed in the cover;
An air pressure control mechanism that is disposed in the cover, controls the air pressure in the car by sucking air in the car, and blows the sucked air to the heat generating part. elevator. The elevator according to claim 1, wherein the atmospheric pressure control mechanism controls the atmospheric pressure in the car by sending air into the car. The atmospheric pressure control mechanism is
An air blower for decompression that sucks air in the car and depressurizes the car;
The elevator according to claim 2, further comprising: a pressurizing air blowing unit that sends air into the car and pressurizes the car. The pressure-reducing air blower is
An intake port for decompression that sucks air in the car;
The elevator according to claim 3, further comprising: a pressure reducing exhaust port that exhausts the sucked air. The elevator according to claim 4, wherein a decompression pipe that guides the air exhausted from the decompression exhaust port to the heat generation unit is provided between the decompression exhaust port and the heat generation unit of the decompression air blowing unit. . The elevator according to claim 4, wherein the decompression exhaust port is provided in a direction in which the heat generating portion is provided. Further provided is a chamber into which the air exhausted from the decompression air blower is sent,
The elevator according to claim 3, wherein the pressurizing air blowing section sucks air in the chamber and sends the air into the car.

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