JP6614126B2 - elevator - Google Patents

Description

  The present invention relates to an elevator provided with an air flow outlet for rectifying the flow of air while raising and lowering a car.

  In recent years, with the increase in the number of buildings, there is a demand for higher speeds in elevators, which are vertical moving means in buildings. On the other hand, with the increase in the speed of elevators, noise caused by airflow has become a problem.

  In a high-speed elevator (for example, 120 m / min or more), as a countermeasure against the noise, a technique for providing a rectifying plate on the upper and lower sides and side surfaces of the car is known (see, for example, Patent Document 1). .

  However, when the car passes through each floor, the gap between the platform and the landing sill protruding into the hoistway provided for each floor in the hoistway is instantaneously narrowed. The problem of so-called buffing (aerodynamic noise) due to the separation flow formed on the surface has not been solved.

  As a technique for eliminating the buffing sound, an elevator apparatus including an airflow generation device has been proposed (see, for example, Patent Document 1).

JP 2010-132453 A JP-A-4-333486

  However, the elevator of Patent Document 1 has a problem in that the structure is complicated because a dedicated airflow generation device for generating an airflow for eliminating the buffing sound must be separately installed in the elevator.

  In view of the above-described problems, an object of the present invention is to provide an elevator that eliminates a buffing sound (aerodynamic noise) when a car passes a landing with a simple structure.

In order to achieve the above object, an elevator according to the present invention includes a car that moves up and down in a hoistway, and the car includes a pressure adjusting device that adjusts a pressure inside the car, and the pressure adjusting device. Has an air intake blower for sucking outside air into the car and an air exhaust blower for discharging air inside the car to the outside, and the air intake blower and the air exhaust blower according to the elevation of the elevator An elevator having control means for controlling the front end of at least one of the upper end and the lower end of the car on a surface facing the landing side of the hoistway at the time of traveling A part of the air exhausted by the intake blower or the exhaust blower is blown out from the airflow for rectifying the flow of air flowing into the front of the car while suppressing the separation flow formed in And having an airflow outlet to further generate.

Further, the air blown out from the air flow outlet is the air sucked into the car by the intake blower or the air in the car by the exhaust blower by at least one air diversion means provided in the car. It is characterized by the fact that the air discharged to the outside is divided.

The air diverting means is a three-way regulating valve.

In addition, the air diverting means is controlled by the control means in order to adjust the amount of air blown from the air flow outlet.

Further, the front intake blower and the exhaust blower are controlled by an inverter, and the inverter is controlled by the control means.

Furthermore, at least one of the upper end portion and the lower end portion of the car has a rectifying cover, and the air flow outlet is provided on a surface of the tip portion of the rectifying cover facing the landing side of the hoistway. It is characterized by that.

  According to the elevator according to the present invention having the above-described configuration, it is possible to use the airflow generated by the blower of the atmospheric pressure adjusting device as an airflow for eliminating the buffing sound, and thus the car can be used with a simple structure. An elevator that eliminates buffing noise (aerodynamic noise) when passing can be provided.

It is a figure which shows schematic structure of the whole elevator which concerns on Embodiment 1. FIG. These are the perspective views of the elevator car which concerns on Embodiment 1. FIG. These are the block diagrams of the elevator which concerns on Embodiment 1. FIG. These are flowcharts which show operation | movement of the elevator which concerns on Embodiment 1. FIG. These are the perspective views of the elevator car which concerns on Embodiment 2. FIG.

Hereinafter, an embodiment of an elevator according to the present invention will be described with reference to the drawings.
In addition, since the effect by the air pressure for rectifying | straightening the air flow between a landing and a passenger | cage and the effect of an atmospheric pressure adjusting device is well-known in prior art literature etc., detailed description is abbreviate | omitted. .

<Embodiment 1>
[The whole elevator]
As shown in FIG. 1, the elevator 1 has one end of a main rope 5 coupled to an elevator car 2 that is one lifting body that moves up and down a hoistway (not shown) in the vertical direction. The main rope 5 is directed upward, and the main sheave constituting the hoisting machine 4 installed in the machine room (not shown) in the building portion above the top of the hoistway established in the building (see FIG. The other end of the main rope 5 is connected to a counterweight 3 which is the other lifting body.

  In the hoistway, there are a pair of car guide rails 6 for guiding the raising / lowering of the car 2 in the vertical direction and a pair of counterweight guide rails 7 for guiding the raising / lowering of the counterweight 3 in the vertical direction. It is laid.

  A control device 8 that controls the operation of the elevator and a governor 9 that detects an overspeed of the car 2 are installed in the machine room.

  The hoistway has a plurality of openings 10 (landings) in the vertical direction, and each opening 10 is closed by a landing door 11.

  The landing door 11 of each opening 10 is guided at the lower end by the landing threshold 12 and opens and closes in conjunction with opening and closing of a car door opening and closing device (not shown).

  In the elevator having the above configuration, when a main sheave (not shown) constituting the hoisting machine 4 is rotationally driven, the car 2 and the counterweight 3 connected to the main rope 5 are used for the car. The guide rail 6 and the counterweight guide rail 7 are guided to move up and down in the hoistway.

  In addition, the invention which concerns on embodiment mentioned later in FIG. 1 is not illustrated.

[Configuration of the car]
A configuration aspect of the car 2 according to the first embodiment of the present invention will be described with reference to FIG. Hereinafter, the door opening / closing direction in FIG. 2 will be described as the frontage direction, and the direction orthogonal to the frontage direction will be described as the depth direction.

    As shown in FIG. 2, the car 2 has a substantially rectangular parallelepiped shape, and has an opening 13 provided as a doorway on one surface constituting a vertical wall surface of the rectangular parallelepiped. The opening 13 is closed by a pair of car doors 14 and 14 that are opened and closed by a car door opening and closing device (not shown).

  The car 2 has a car ceiling 24 at the upper end in the vertical direction and a car floor 25 at the lower end in the vertical direction.

[Configuration Mode of Atmospheric Pressure Adjustment Device and Air Flow Outlet]
As shown in FIG. 2, an exhaust blower 15 is installed on the hoistway side upper surface of the ceiling 24 of the car 2 as an air pressure adjusting device. The exhaust blower 15 has an intake port 15 a that sucks air in the car 2, an exhaust port 15 b that exhausts air into the hoistway, and a motor 15 c that drives the exhaust blower 15. The motor 15 c of the exhaust blower 15 is driven by an inverter 17.

  In addition, an air intake blower 16 is installed on the hoistway side upper surface of the ceiling 24 of the car 2 as a component of the atmospheric pressure adjusting device. The intake blower 16 includes an intake port 16 a that intakes air in the hoistway, an exhaust port 16 b that exhausts air into the car 2, and a motor 16 c that drives the intake blower 16. The motor 16 c of the intake blower 16 is driven by an inverter 18.

  The communication pipes 190 to 200 described below are hollow pipes such as metal pipes and resin pipes through which gas can be passed. One end of the communication pipe 190 is connected to the exhaust port 15 b of the exhaust blower 15, and the other end of the communication pipe 190 is connected to the air distribution means 20. One end of the communication pipe 192 is connected to the exhaust port 15 a of the exhaust blower 15, and the other end of the communication pipe 192 is connected to the car ceiling 24. One end of the communication pipe 191 and one end of the communication pipe 200 are connected to the air distribution means 20. The other end of the communication pipe 191 is connected to the switching valve 21. The other end of the communication pipe 200 is open to the hoistway. One end of the communication pipe 193 and one end of the communication pipe 194 are connected to the switching valve 21. The other end of the communication pipe 193 is connected to the lower airflow outlet 23, and the other end of the communication pipe 194 is connected to the upper airflow outlet 22. For example, a three-way regulating valve is used as the air diversion means 20 and the switching valve 21.

The lower air flow outlet 23 is provided at the lower end of the surface facing the landing of the car 2 so as to protrude from the surface facing the landing of the car 2 to the landing side over substantially the entire range in the front direction of the car 2. One or a plurality of air flow blowing holes 23a for blowing out the air flow are opened on the upper surface of the lower air flow blowing port 23 in the vertical direction. The upper air flow outlet 22 faces the landing of the car 2 over almost the entire range in the front direction of the car 2 at the upper end of the surface facing the landing of the car 2, as in the case of the lower air flow blower 23. One or more airflow holes (not shown) for blowing out the airflow are opened vertically downward on the lower surface of the upper airflow outlet 22 in the vertical direction. ing. In FIG. 2, the airflow blowing hole 23 a is a round hole, but may be a polygonal hole such as a square hole, or may be a rectangle or a long hole covering substantially the entire range in the front direction of the car 2. good.

The exhaust port 16 b of the intake blower 16 is connected to one end of the communication pipe 195, and the other end of the communication pipe 195 is connected to the air distribution means 27. One end of the communication pipe 196 and one end of the communication pipe 197 are connected to the air distribution means 27. The other end of the communication pipe 196 is connected to the switching valve 28. The other end of the communication pipe 197 is connected to the car ceiling 24. One end of the communication pipe 198 and one end of the communication pipe 199 are connected to the switching valve 28. The other end of the communication pipe 198 is connected to the lower airflow outlet 23, and the other end of the communication pipe 199 is connected to the upper airflow outlet 22. For example, a three-way regulating valve is used for the air diversion means 27 and the switching valve 28.

The configuration of the lower airflow outlet 23 and the upper airflow outlet 22 has been described in the configuration of the exhaust blower 15 and will be omitted.

[Airflow control at the airflow outlet]
The airflow control at the airflow outlet will be described with reference to FIGS.
FIG. 3 is a schematic configuration diagram showing the control of each device and the flow of air. A broken line represents a flow of wired or wireless communication / power supply for controlling each device, and a solid line represents a flow of air.

  When the car 2 moves up and down in the hoistway, the exhaust blower 15 and the intake blower 16 adjust the atmospheric pressure in the car 2, so that the inverters 17, 18 are controlled by a command from the control device 26 as control means. The motors 15c and 16c of the exhaust blower 15 and the intake blower 16 are driven to exhaust the air in the car 2 or inhale the air into the car 2.

  When exhausting the air in the car 2, the control device 26 drives the motor 15 c, drives the exhaust blower 15, and sucks the air in the car 2 through the communication pipe 192. The exhaust blower 15 exhausts the sucked air toward the air diversion device 20 through the communication pipe 190. The control device 26 controls the air diversion device 20 to open the communication pipe 200 opened to the hoistway and exhaust the air in the car 2 to the hoistway. Further, the control device 26 controls the air diversion device 20, opens the communication pipe 191 connected to the switching valve 21, and sends a part of the air sucked from the passenger car 2 to the switching valve 21. The control device 26 opens the communication pipe 193 connected to the switching valve 21 and blows the air sent to the switching valve 21 from the lower air flow outlet 23, or the communication pipe 194 connected to the switching valve 21. Is opened and blown out from the upper air flow outlet 22.

  When air is sucked into the car 2, the control device 26 drives the motor 16c, drives the air intake blower 16, and sucks air in the hoistway from the air intake port 16a. The intake blower 16 exhausts the sucked air toward the air diversion device 27 through the communication pipe 195. The control device 26 controls the air diversion device 27, opens the communication pipe 197 connected to the car ceiling 24, and exhausts air into the car 2. Further, the control device 26 controls the air diversion device 27 to open the communication pipe 196 connected to the switching valve 28 and send a part of the air sucked from the hoistway to the switching valve 28. The control device 26 opens the communication pipe 198 connected to the switching valve 28 and blows the air sent to the switching valve 28 from the lower air flow outlet 23, or the communication pipe 199 connected to the switching valve 28. Is opened and blown out from the upper air flow outlet 22.

  Next, with reference to FIG. 4, the air current blowing control of the upper air flow blowing port 22 and the lower air flow blowing port 23 will be described.

  FIG. 4 is a flowchart showing the control related to the airflow blowing.

  In FIG. 4, it is assumed that the car 2 is moving in the upward direction at a predetermined speed (YES in step S11). The control device 8 detects the vertical position of the car 2 based on the position signal output from the car position detection device (not shown in any of the drawings) (step S12), and the upper airflow blowout of the car 2 Immediately before the opening 22 passes through the landing sill 12 (YES in Step 13), the control device 26 drives the exhaust blower 15 to control the air diverting means 20 and / or the switching valve 21 to control the upper air flow outlet 22. The air is blown out for a predetermined time (step S14). Further, the control device 8 detects the vertical position of the car 2 based on the position signal output from the car position detection device (not shown in any figure) (step S12), and the upper side of the car 2 is detected. Immediately before the air flow outlet 22 passes through the landing sill 12 (YES in step 13), the control device 26 drives the air intake blower 16 to control the air diverting means 27 and / or the switching valve 28 so as to discharge the upper air flow. Air is blown out from the mouth 22 for a predetermined time (step S14). Note that the air blown out from the upper air flow outlet 22 for the predetermined period of time may be blown out by either the exhaust blower 15 or the intake blower 16, or may be blown out by both blowers. May be. The predetermined time varies depending on the speed of the car 2, but is a time from immediately before the upper air flow outlet 22 faces the landing sill 12 until it does not face. The exhaust blower 15 and the intake blower 16 can adjust the amount of air to be exhausted and the amount of intake air to be sucked by the control device 26 controlling the inverter 17 and the inverter 18.

  In the case where the car 2 is moving in the downward direction (NO in step S11), as in the case where the car 2 is moving in the upward direction, the control device 8 starts from the car position detecting device (not shown in any figure). Based on the output position signal, the vertical position of the car 2 is detected (step S16), and immediately before the lower airflow outlet 23 of the car 2 passes through the landing threshold 12 (YES in step 17). The control device 26 drives the exhaust blower 15, controls the air diverting means 20 and the switching valve 21, and blows out air from the lower air flow outlet 23 for a predetermined time (step S18). Further, the control device 8 detects the vertical position of the car 2 based on the position signal output from the car position detection device (not shown in any of the figures) (step S16), and below the car 2 Immediately before the side airflow outlet 23 passes through the landing threshold 12 (YES in step 17), the control device 26 drives the intake blower 16 to control the air diverting means 27 and / or the switching valve 28, so that the lower side Air is blown out from the air flow outlet 23 for a predetermined time (step S18). Note that the air blown out for a predetermined time from the lower air flow outlet 23 in the previous period may be blown out by either the exhaust blower 15 or the intake blower 16 or blown out by both blowers. There may be. The predetermined time varies depending on the speed of the car 2, but is the time from immediately before the lower air flow outlet 23 faces the landing sill 12 until it does not face.

  According to the first embodiment, it is possible to reduce a buffing sound (aerodynamic noise) due to a pressure change that occurs when the upper end or lower end of the car 2 passes through the landing sill 12 with a simple configuration.

  The upper airflow outlet 22 or the lower airflow outlet 23 is installed only on the surface facing the landing side of the hoistway at either one of the upper end and the lower end of the car 2. Also good.

<Embodiment 2>
Next, Embodiment 2 will be described with reference to FIG.

  In the second embodiment, the upper end and the lower end of the car 2 are covered with a wind regulation cover in the first embodiment. In FIG. 5, the conditioned cover 31 includes an upper conditioned cover 31 b that covers equipment (exhaust blower 15, intake blower 16, control device 26, etc., not shown in the figure) installed at the top of the car 2, Covers the side wind control cover 31a that covers the side wall of the car 2 other than the surface facing the landing side of the hoistway, and equipment (such as a car emergency stop device not shown in FIG. 5) installed in the lower part of the car 2. And a lower wind conditioned cover 31c. In FIG. 5, the main rope 5 and the car door opening / closing device are omitted.

    In FIG. 5, 34 and 34 are car doors of the car 2. Reference numeral 32 denotes an upper airflow outlet, and 33 denotes a lower airflow outlet. The lower air flow outlet 33 is located at the lower end of the surface facing the landing area of the lower air conditioning cover 31c, and from the surface facing the landing area of the lower air conditioning cover 31c over substantially the entire range in the opening direction of the lower air conditioning cover 31c. One or a plurality of airflow blowing holes 33a for blowing out the airflow are opened vertically upward on the upper surface in the vertical direction of the lower airflow blowing outlet 33. The upper airflow outlet 32 extends over substantially the entire range of the upper airflow cover 31b at the upper end of the surface facing the landing of the upper airflow cover 31b over the entire range of the upper airflow cover 31b. It is provided so as to protrude from the surface facing the landing to the landing side. On the lower surface in the vertical direction of the upper air flow blowing port 32, there is one air flow blowing hole (not shown) for blowing out the air flow vertically downward or Several are open. In FIG. 5, the air flow blowing hole 33a is a round hole, but it may be a polygonal hole such as a square hole, and is a rectangle or a long hole extending over substantially the entire range of the lower air conditioning cover 31c. May be.

  According to the elevator which concerns on Embodiment 2, generation | occurrence | production of the buff sound (aerodynamic noise) which arises from the front-end | tip of the rectification | straightening cover which opposes a landing sill first can be suppressed when a car passes each floor.

  In addition, since [the configuration of the atmospheric pressure adjusting device and the airflow outlet] and [the airflow control of the airflow outlet] of the second embodiment are the same as those of the first embodiment, the description thereof is omitted.

As mentioned above, although the elevator which concerns on this invention has been demonstrated based on embodiment, of course, this invention is not restricted to an above-described form, For example, it is good also as the following forms.
(1) In the above embodiment, the air exhausted from the exhaust ports 15b and 16b of the exhaust blower 15 and the intake blower 16 is divided into the upper air flow outlet (22, 32) and the lower air flow outlet (23, 33). For this purpose, two air diversion means (20, 27) and a switching valve (21, 28) are used. However, if the air diverting means (20, 27) can divide one air flow into three air flows, that is, intake / exhaust into the hoistway or the car 2 and the upper air flow outlet (22, 32). If the current can be divided into three air currents to the lower airflow outlet (23, 33), there is no need to separately use the switching valve (21, 28).

(2) In the above embodiment, the upper airflow outlet (22, 32) and the lower airflow outlet (23, 33) are installed between the car 2 and the landing threshold 12, and a buffing sound (aerodynamic noise) is provided. In order to suppress buffing (aerodynamic noise) that occurs when the car 2 and the counterweight 3 pass each other, the upper airflow outlet and the lower airflow outlet serve to suppress the car 2 and the counterweight 3. You may install between.

(3) In the above embodiment, both the exhaust blower and the intake blower are installed and the airflow is blown out from the upper airflow outlet and the lower airflow outlet. There may be a structure in which an airflow is blown out from either the upper airflow outlet or the lower airflow outlet.

(4) Although the above embodiment has been described with an elevator with a machine room, it may be an elevator without a machine room, a so-called machine roomless elevator.

The present invention can be implemented in a mode in which various improvements, modifications, or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. Moreover, you may implement with the form which substituted any invention specific matter to the other technique within the range which the same effect | action or effect produces.

  The elevator according to the present invention can be suitably used, for example, as an elevator structure that needs to suppress buffing (aerodynamic noise) when a car passes through a landing threshold.

DESCRIPTION OF SYMBOLS 1 Elevator 2 Car 3 Balance weight 4 Hoisting machine 5 Main rope 6 Car guide rail 7 Balance weight required guide rail 8 Control device 9 Governor 10 Opening 11 Landing door 12 Standing sill 13 Opening 14, 34 Car door 15 Exhaust blower 15a Intake port 15b Exhaust port 15c Motor 16 Intake blower 16a Intake port 16b Exhaust port 16c Motor 17, 18 Inverter 20, 27 Air diversion means 21, 28 Switching valve 22, 32 Upper air flow outlet 23, 33 Lower side Airflow outlet 23a, 33a Airflow outlet 24 Car ceiling 25 Car floor 26 Controller 31 Rectifier cover 31a Side rectifier cover 31b Upper rectifier cover 31c Lower rectifier cover 190-200 Communication pipe

Claims (6)

A car that goes up and down in the hoistway,
The car is
It has a pressure adjustment device that adjusts the pressure inside the car,
The air pressure adjusting device has an intake blower that sucks outside air into the car, and an exhaust blower that discharges air inside the car to the outside,
An elevator having control means for controlling the intake blower and the exhaust blower in accordance with the elevation of the elevator,
It is installed on the surface of at least one of the upper end portion and the lower end portion of the car that faces the landing side of the hoistway, and suppresses the separation flow formed at the car front end during travel. It has an air flow outlet for generating an air flow for rectifying the air flow flowing into the front of the car by blowing out a part of the air discharged by the intake blower or the exhaust blower. elevator. The air blown out from the air flow outlet is
By at least one air diversion means provided in the car,
2. The elevator according to claim 1, wherein the air sucked into the car by the intake blower or the air discharged outside the car by the exhaust blower is shunted. 3. The elevator according to claim 2, wherein the air diversion means is a three-way regulating valve. The elevator according to claim 2 or 3, wherein the air diversion unit is controlled by the control unit in order to adjust the amount of air blown from the air flow outlet. The intake blower and the exhaust blower are:
Controlled by inverter,
The elevator according to claim 4, wherein the inverter is controlled by the control means. A rectifying cover is provided on at least one of the upper end and the lower end of the car,
The elevator according to any one of claims 1 to 5, wherein the air flow outlet is provided on a surface of the tip portion of the rectifying cover facing the landing side of the hoistway.