JP2009190883A - Air conditioner for elevator cab - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner for an elevator cab capable of appropriately air-conditioning the inside of the elevator cab and appropriately reducing noise in the elevator cab according to the elevating speed of the cab. <P>SOLUTION: This air conditioner for the elevator cab includes: a ventilator supplying air into the cab by allowing air outside the cab to flow into from an inlet port and exhausting air from an exhaust port; a soundproof cover covering the ventilator and having an air intake port facing the inlet port and opened; and an opening adjusting cover provided to the soundproof cover and adjusting the opening degree of the air intake port according to the elevating speed of the cab. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air conditioner for an elevator cab that reduces the noise that enters the interior of the cab from the outside of the cab in an air conditioner that performs air conditioning of the elevator cab.

  In high-speed elevators, wind noise when the elevator is raised and lowered, and noise from equipment with a rotating body such as a sheave and a sliding body such as a guide enter the car from the gap in the elevator car and become noise. . Further, in the elevator cab, an air conditioner for air conditioning the cab is usually provided on the ceiling. The air conditioner has an air inlet, through which air is sent from the outside of the car room to the car room to air-condition the car room. Therefore, in a high-speed elevator, the air suction port becomes a gap in the cab and greatly affects the noise in the cab.

To solve the above problems, conventional elevator cab air conditioners are provided with a ventilation fan that supplies air from the outside of the cab to the inside of the cab, and covers the air intake port of the ventilation fan. A cover is provided. This makes it difficult for noise such as wind noise to enter the car room when the raising / lowering speed of the car room increases. (For example, see Patent Document 1)

JP 2000-86124 A (Page 6, FIG. 1)

As described above, the conventional elevator cab air conditioner is provided with a cover near the air intake port of the ventilation fan, making it difficult for noise to enter the cab, but this cover is fixed and the air intake port Remains open by a certain amount. Therefore, when the raising / lowering speed of the cab becomes higher, it is necessary to narrow the opening of the air suction port, but the conventional one cannot cope with it. Further, if the opening of the air intake port is made too narrow, the load for driving the ventilation fan may increase, and air conditioning may not be performed properly.
The present invention has been made to solve such a problem, and an object of the present invention is to appropriately air-condition the car room according to the ascending / descending speed of the car room and appropriately reduce noise in the car room. It is to obtain an elevator cab air conditioner.

  In the elevator cab air conditioner according to the present invention, a ventilator for injecting air outside the cab from the intake port, exhausting air from the exhaust port, and supplying air into the cab, and the ventilator A soundproof cover having an air inlet opening facing the air inlet, and an opening adjustment cover provided on the soundproof cover and adjusting the opening amount of the air inlet according to the raising / lowering speed of the cab. It is provided.

  The ventilation device is covered with a soundproof cover, and the opening adjustment cover adjusts the opening amount of the air intake port facing the intake port of the ventilation device. As a result, when the ascending / descending speed is high, the opening adjustment cover reduces the opening amount of the air suction port to make it difficult for noise to enter the car room, and when the ascending / descending rate is slow, the opening amount of the air suction port is reduced. Since the air is made larger and air can easily enter the car room, the car room can be appropriately air-conditioned according to the ascending / descending speed of the car room, and noise in the car room can be appropriately reduced.

Embodiment 1 FIG.
FIG. 1 is a front view of the entire cab showing an elevator cab air conditioner according to Embodiment 1 of the present invention. FIG. 2 is an enlarged front view of the elevator cab air conditioner, and FIG. 3 is a side view of the elevator cab air conditioner. 4 is a view showing a cross section AA of FIG. 3, and FIG. 5 is a view showing an operation.

  1, 2, 3, and 4, the elevator cab 1 is configured in a box shape with a car wall 3 standing on the outer periphery of the upper surface of the car floor 2 and a canopy 4 attached to the upper surface of the car wall 3. ing. The canopy 4 is provided with an illuminating device 4a for illuminating the interior of the cab 1 on the lower side. The illumination device 4a has an umbrella shape in a side view. In addition, a ventilation port 5 is formed between the car wall 3 and the lighting device 4 a on the top surface of the canopy 4. An air conditioner 6 is attached to the upper part of the ventilation port 5.

The air conditioner 6 is provided with a mounting base 7 having a U-shaped cross section attached to the upper surface of the canopy 4. A ventilation device 8 is attached to the upper surface of the mounting base 7 by a fastener 9 via a vibration isolator 7a. This ventilation device 8 is generally sold on the market and has a ventilation fan 8c inside. The ventilator 8 is provided with an intake port 8b through which air is introduced from the lateral direction by a ventilation fan 8c on the front surface and an exhaust port 8a facing the ventilation port 5 on the lower surface. The intake port 8b is also provided on a part of the upper surface in contact with the front surface. And by the action | operation of the ventilation fan 8c, air is ventilated from the inlet port 8b to the exhaust port 8a. The air conditioner 6 is provided with a soundproof cover 10 that covers the ventilation device 8. The soundproof cover 10 has a duct shape having a predetermined gap with respect to the upper surface and side surfaces of the ventilation device 8 and the rear surface opposite to the intake port 8c, and covers the ventilation port 8b with a predetermined amount. The air intake port 11 has a horizontal space 8d and opens in the lateral direction. The air inlet 11 is also open in the lower half of the side surface of the soundproof cover 10 in the vicinity of the inlet 8b.

The soundproof cover 10 includes a first attachment portion 10a formed on the outer side of the one side surface and a second attachment portion 10b formed on the inner side of the other side surface. The first mounting portion 10a and the second mounting portion 10b are each formed with a mounting hole 10c that opens to the end side. The fastener 9 is inserted into the mounting hole 10c, and the soundproof cover 10 is attached to the mounting base 7 together with the ventilation device 8 from above the ventilation device 8.

An opening adjustment cover 12 is provided on the soundproof cover 10 on the air inlet 11 side. The opening adjustment cover 12 has a U-shaped cross section, and has a shape along the air suction port 11 so that one surface closes a part of the upper side of the air suction port 11, and both side surfaces on one surface are the inner surfaces of the soundproof cover 10. It is arranged facing each other. Then, both side surfaces of the opening adjustment cover 12 are rotated and fixed to the soundproof cover 10 by bolts 13 serving as a rotation mechanism. The opening adjustment cover 12 is rotatable with respect to the soundproof cover 10 in a state where the bolt 13 is loosened, and is fixed to the soundproof cover 10 in a tightened state. As described below, the opening amount of the air inlet 11 is adjusted by the rotation angle of the opening adjustment cover 12. That is, in a state where the opening adjustment cover 12 is along the end surface of the soundproof cover 10 (a state perpendicular to the drawing), a part of the upper opening of the air suction port 11 is closed, and the outside of the soundproof cover 10 is closed from this closed angle. By tilting in the direction of rotation, the aperture is opened, and the aperture amount is adjusted according to the rotation angle. A first sound absorbing material 14 is provided inside the upper surface of the soundproof cover 10 near the air inlet 11. A second sound absorbing material 15 is provided on the top surface of the canopy 4 in the vicinity of the air inlet 11.

Next, the operation of the air conditioner 6 will be described with reference to FIG.
By operating the ventilation fan 8c, the air outside the cab 1 flows from the air intake port 11 and enters the cab 1 through the intake port 8b, the exhaust port 8a, and the ventilation port 5 of the ventilator 8. Supplied. As a result, air conditioning in the car room 1 is performed. Similarly, noise generated when the elevator is raised and lowered enters the car room 1 through the air intake port 11.

When the opening adjustment cover 12 is fixed at an angle along the end face of the soundproof cover 10, the upper part of the air suction port 11 is closed, and the air is opened as shown by an arrow A in the figure. It enters from the opening on the lower side of the cover 12. This makes it difficult for air and noise to enter the car room 1, and the noise level in the car room 1 is lowered. Further, when the opening adjustment cover 12 is rotated and fixed to the outside of the soundproof cover 10, the opening amount of the air suction port 11 becomes large, and air and noise easily enter the cab 1, and the cab 1 The noise level will be higher. As described above, the opening level of the air suction port 11 is adjusted by the opening adjustment cover 12 to adjust the noise level entering the cab 1.

  In the case of an elevator in which the raising / lowering speed of the cab 1 is fast, noise such as wind noise increases. In this case, the rotation angle of the opening adjustment cover 12 is set to a small angle, the opening amount of the air suction port 11 is reduced, and the noise level in the cab 1 is lowered. At this time, it becomes difficult for air for air conditioning to enter the cab 1 and the load on the ventilation fan 8c increases. However, due to the characteristics of the fan, the rotational speed increases and the intake air amount also increases. Is called. On the other hand, in the case of an elevator where the raising / lowering speed of the cab 1 is slow, noise such as wind noise is reduced. In this case, the rotation angle of the opening adjustment cover 12 is set to a large angle, the opening amount of the air suction port 11 is increased, and the load of the ventilation fan 8c is reduced to perform air conditioning. At this time, although the noise generated when the elevator is raised and lowered easily enters the car room 1, the raising and lowering speed of the car room 1 is slow and the generated noise is low, so that the noise in the car room 1 is at a level with no problem.

Further, the noise is also reflected on the upper surface of the canopy 4 and enters the air inlet 11. At this time, the noise is reflected by the second sound absorbing material 15 and the sound is absorbed. Further, the noise that has entered the air inlet 11 is reflected by the inner surface of the soundproof cover 10 near the air inlet 11 and enters the car room 1. At this time, the noise is reflected by the first sound absorbing material 14 and the sound is absorbed. Moreover, the vibration by the action | operation of the ventilation apparatus 8 is relieve | moderated by the vibration isolator 7a, and is propagated to a canopy.

The elevator cab air conditioner in Embodiment 1 described above has the following effects.
The air conditioner 6 has a ventilator 8 that supplies air from the outside of the car room 1 to the inside of the car room 1, and a duct shape that covers the ventilator 8. The air conditioner 6 opens to the air inlet 8 b of the ventilator 8. A soundproof cover 10 having an air suction port 11 is provided. An opening adjustment cover 12 is provided in the soundproof cover 10 on the air suction port 11 side, and adjusts the opening amount of the air suction port 11 according to the ascending / descending speed of the cab 1. Thereby, in the case of an elevator in which the raising / lowering speed of the cab 1 is high, the air in the cab 1 is air-conditioned, and the opening adjustment cover 12 is used to set the opening amount of the air intake port 11 to be small so that noise is generated in the cab 1. Since it becomes difficult to enter, the noise in the cab 1 can be reduced. On the other hand, in the case of an elevator in which the ascending / descending speed of the cab 1 is slow, by setting the opening amount large by the opening adjustment cover 12, the cab 1 is kept in a state where noise in the cab 1 does not become a problem.
The air conditioning inside can be performed sufficiently. Thus, an air conditioner that can appropriately air-condition the car room 1 and appropriately reduce noise in the car room according to the ascending / descending speed of the car room 1 can be obtained. In addition, it can be applied to various types of elevators having different speeds with one type of air conditioner, which is economical.

  In addition, the soundproof cover 10 having the air suction port 11 covers the ventilation device 8 in a duct shape so that the air sucked by the ventilation device 8 flows from the air suction port 11. What is sold in can be used, and an economical air conditioner can be obtained.

Further, in the case of an elevator in which the raising / lowering speed of the cab 1 is slow, by setting the opening amount to be large by the opening adjustment cover 12, it is possible to reduce the load on the ventilation fan 8c and to extend the life of the ventilation fan. In addition, since the load of a ventilation fan becomes small, a capacity | capacitance can also be made small.

The opening adjustment cover 12 closes the upper part of the opening of the air suction port 11 and does not completely block the opening. Even in the closed position, the car room 1 can be sufficiently air-conditioned. Further, since the air intake port 11 is also opened in the lower half of the side surface of the soundproof cover 10 in the vicinity of the intake port 8b, air conditioning in the cab 1 can be sufficiently performed.

Further, since the soundproof cover 10 is provided with a rotation mechanism that rotates the opening adjustment cover 12 so as to open the air suction port 11, the opening amount can be adjusted with a simple structure. In addition, since the rotation shaft is configured by the bolt 13, the opening adjustment cover 12 is rotated at an arbitrary angle by loosening the bolt 13, and the bolt 13 is tightened to fix the rotation mechanism. The rotation angle of the opening adjustment cover 12 can be set by work.

Moreover, since the sound absorbing material 14 is provided, the noise reflected on the inner surface of the soundproof cover can be absorbed, and the noise in the cab 1 can be further reduced. Moreover, since the sound absorbing material 15 is provided, noise reflected on the upper surface of the canopy 4 can be absorbed, and noise in the cab 1 can be further reduced.

  The soundproof cover 10 includes a first attachment portion 10a and a second attachment portion 10b. The first mounting portion 10a and the second mounting portion 10b are each formed with a mounting hole 10c that opens to the end side. The fastener 9 is inserted into the mounting hole 10c, and the soundproof cover 10 is attached to the mounting base 7 together with the ventilation device 8 from above the ventilation device 8. Thereby, by loosening the fastener 9, the soundproof cover 10 can be removed and attached, and the work can be facilitated and maintainability can be improved.

Embodiment 2. FIG.
FIG. 6 is an enlarged front view showing an elevator cab air conditioner according to Embodiment 2 of the present invention, and corresponds to FIG. FIG. 7 is a side view of FIG. 6 and corresponds to FIG. In the second embodiment, the rotation mechanism is changed with respect to the first embodiment.

  6 and 7, the opening adjustment cover 12 is rotatably supported on both sides of the soundproof cover 10 via a rotation shaft 20. Then, the motor 21 as the rotation control means is attached to either one of the soundproof covers, and the opening adjustment cover 12 is rotated by rotating the rotating shaft 20. The motor 21 is connected to a control device (not shown) and controls the rotation angle of the opening adjustment cover 12 according to the ascending / descending speed of the cab 1. In other words, the motor 21 rotates the opening adjustment cover 12 in a direction to close the air intake port 11 when the raising / lowering speed of the car room 1 is fast while the car room 1 is moving up and down. Conversely, when the raising / lowering speed of the cab 1 is slow, the opening adjustment cover 12 is rotated in the direction in which the air suction port 11 is opened. Other points are the same as those of the first embodiment, and detailed description thereof is omitted. Also, the same reference numerals as those in the first embodiment indicate corresponding parts.

The elevator cab air conditioner according to the second embodiment has the same effects as those of the first embodiment and also has the following effects.
In the second embodiment, when the car room 1 is raised and lowered, the rotation angle of the opening adjustment cover 12 is controlled according to the raising and lowering speed, and the opening amount of the air suction port 11 is controlled. Thereby, in the state where the raising / lowering speed of the car room 1 is high, the opening amount of the air suction port 11 can be reduced to reduce the noise in the car room 1. On the contrary, when the raising / lowering speed of the cab 1 is slow, the opening amount of the air suction port 11 can be increased to reduce the load of the ventilation fan 8c. In this way, even when the car room 1 is moving up and down, even if the ascending / descending speed changes, the car room 1 can be efficiently air-conditioned and the noise in the car room 1 can be appropriately reduced. . Moreover, the opening amount of the air suction port 11 can be controlled with respect to the ascending / descending speed of the cab 1 that changes from moment to moment, and more efficient air conditioning and noise reduction can be achieved.

  Further, when the car room 1 is stopped, the air intake port 11 can be fully opened. At this time, the load on the ventilation fan 8c is reduced, the rotational speed is further reduced, the life is extended, and the ventilation is performed. The noise generated by the rotation of the fan 8c is also reduced, and the noise in the car room can be further reduced.

Embodiment 3 FIG.
FIG. 8 is a front view of the entire cab showing an elevator cab air conditioner according to Embodiment 3 of the present invention, and corresponds to FIG. FIG. 9 is an enlarged front view of the elevator cab air conditioner of FIG. 8 and corresponds to FIG. The third embodiment is applied to a canopy different from the canopy 4 of the cab 1 with respect to the first embodiment.

8 and 9, the canopy 31 of the cab 30 is lower than the canopy 4 of the first embodiment. Such a canopy 31 has a ceiling plate 31a having a reverse hat shape in cross section and a design surface on the inner side of the cab 1, and a lid 31b on the upper surface. And the illuminating device 31c is arrange | positioned inside. Further, the side surface of the ceiling plate 31 a is arranged at a distance from the car wall 3. And the 1st ventilation port 32a opened in the horizontal direction toward the car room 1 inner side is provided in the side surface of the ceiling board 31a. A second ventilation port 32b that opens upward is provided in the lid 31b in the vicinity of the first ventilation port 32a. An air conditioner 33 is provided above the second ventilation port 32b.

  The air conditioner 33 is provided with a mounting base 34 whose upper surface is inclined on the upper surface of the second ventilation port 32b. The ventilation device 8 similar to that of the first embodiment is attached to the upper surface of the mounting base 34 by the fastener 9 via the vibration isolator 7a so as to be inclined with respect to the lid 31b. And the exhaust port 8a of the ventilation apparatus 8 is arrange | positioned facing the 2nd ventilation port 32b. A soundproof cover 10 covering the ventilation device 8 is attached to be inclined with respect to the lid 31b. Therefore, the air suction port 11 opens toward the upper surface of the lid 31b. Other points are the same as those of the first embodiment, and detailed description thereof is omitted. Also, the same reference numerals as those in the first embodiment indicate corresponding parts.

Since such a canopy 31 cannot be provided with a ventilation port on the design surface inside the car room 1 and has a low height, a first ventilation port 32a that cannot be directly seen from the inside of the car room 1 is provided on the side surface. ing. And the 2nd ventilation port 32b is provided in the upper surface of the direction orthogonal to a side surface so that air may flow in with respect to this 1st ventilation port 32a. If the exhaust port 8a of the ventilator 8 is disposed so as to face the second vent port 32b, the air sent from the ventilator 8 enters a turbulent state and flows into the first vent port 32a. In this case, since it becomes difficult for the air to flow, in the present embodiment, the ventilation device 8 is tilted, and the air fed from the exhaust port 8a flows into the second ventilation port 32b obliquely from above, and the air is It flows into the first ventilation port 32a in a state where it is difficult to turbulently flow.

When the air suction port 11 opens toward the top surface of the canopy 31 and the opening adjustment cover 12 is in a state of closing the air suction port 11 (a state along the end surface of the soundproof cover 10), the opening adjustment cover 12 and the canopy 31 The distance from the upper surface is smaller than in the case of horizontal mounting. Therefore, the intake area at the air intake port 11 is also reduced and noise is less likely to enter, but the ventilation device 8 is difficult to intake. By rotating the opening adjustment cover 12 in the direction in which the air inlet opens, a sufficient intake area can be secured and the load on the ventilation device 8 can be reduced. The rotation angle of the opening adjustment cover 12 is set so that the noise level in the car room 1 is reduced and air conditioning is appropriately performed.

As described above, since the air conditioner 33 adjusts the opening amount of the air suction port 11 by the opening adjustment cover, regardless of the arrangement of the air suction port 11 such as a cab having a low-top canopy, The same effects as in the first embodiment are obtained.
In addition, although Embodiment 1, 2, and 3 provided the air conditioner in one place, you may provide in several places.

It is a front view of the whole cab which shows the elevator cab air conditioner in Embodiment 1 of this invention. It is an enlarged view of the front view which shows the elevator cab air conditioner of FIG. FIG. 3 is a side view of FIG. 2. It is a figure which shows the cross section AA of FIG. It is a figure which shows operation | movement of the elevator cab air conditioner in Embodiment 1 of this invention. It is an enlarged view of the front view which shows the elevator cab air conditioner in Embodiment 2 of this invention. FIG. 7 is a side view of FIG. 6. It is a front view of the whole cab which shows the elevator cab air conditioner in Embodiment 3 of this invention. It is an enlarged view of the front view which shows the elevator cab air conditioner of FIG.

Explanation of symbols

1 cage, 4 canopy, 5 vents, 8 ventilators, 8a exhaust, 8b intake,
10 soundproof cover, 11 air inlet, 12 opening adjustment cover, 13 bolt,
14 1st sound-absorbing material, 15 2nd sound-absorbing material, 21 Motor

Claims (4)

An elevator cab air conditioner installed in the canopy of the elevator cab,
A ventilator for injecting air outside the car room from an air inlet, exhausting the air from an air outlet, and supplying air into the car room;
A soundproof cover that covers the ventilator and has an air inlet opening facing the inlet;
An opening adjustment cover that is provided on the soundproof cover and adjusts an opening amount of the air suction port according to an ascending / descending speed of the cage;
The elevator cab air conditioner according to claim 1, comprising: The elevator cab air conditioner according to claim 1, further comprising a rotation mechanism that rotates the opening adjustment cover so as to open the air suction port. The elevator cab air conditioner according to claim 2, further comprising a rotation control means for adjusting a rotation angle of the rotation mechanism in accordance with an ascending / descending speed of the cab. The elevator cab air conditioner according to any one of claims 1 to 3, wherein a sound absorbing material is provided on an inner surface of the soundproof cover near the air suction port.

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