JP5053671B2 - Elevator car ventilation system - Google Patents

Description

  The present invention relates to an elevator car ventilation device.

  The elevator car is a sealed space, and is in a special environment in which a large number of users get on the sealed space. For this reason, the ventilator for ventilating the inside of the car requires a structure specific to the ventilation in the elevator car, unlike a general ventilation system.

  As shown in FIG. 7, a conventional elevator car ventilation device is provided on a ceiling 3 in which a lighting structure 2 is attached to a ceiling plate 1. The ceiling board 1 is provided with a frame body 1a having a U-shaped cross section along the peripheral edge on the upper surface side with respect to the lower surface on which the illumination structure 2 is provided, and the ventilation device 4 that can be stored inside the frame body 1a has a desired position. Is provided.

  As shown in FIG. 8, which is a cross-sectional view taken along the line VIII-VIII of FIG. 7, the ventilation device 4 has a configuration in which a cover 6 having a sound absorbing material 5 on the inner surface covers the ventilation fan 7. As shown in FIG. 8, a vent 1 b is opened at a place where the ventilation device 4 is provided on the ceiling panel 1, and the side surface of the cover 6 of the ventilation device 4 installed on the ceiling panel 1 is provided on the side surface. An outside air intake / exhaust port 8 is opened. The outside air that has flowed in from the outside air intake / exhaust port 8 due to the rotation of the ventilation fan 7 is supplied into the car through the vent 1b that opens into the elevator car, and the air in the car is rotated by the rotation of the ventilation fan 7. The air is exhausted from the vent 1b to the elevator hoistway through the outside air intake / exhaust port 8.

  The ventilation device 4 installed in the elevator car shown in FIGS. 7 and 8 ventilates the car by forcibly sucking and exhausting the outside air in the hoistway and the air in the car by the ventilation fan 7. However, the structure for absorbing noise and vibration generated by driving the ventilation device 4 has been realized by providing the sound absorbing material 5 on the inner surface of the cover 6.

  However, in the conventional elevator car ventilator described above, since the outside air intake / exhaust port 8 is provided in the vicinity of the ventilation fan 7, the sound absorbing material 5 is provided on the inner wall surface of the cover 6 that covers the ventilation fan 7. However, since the distance between the outside air intake / exhaust port 8 and the vent 1b of the ceiling plate 1 is close, the distance for obtaining the sound absorption effect is shortened, and it is difficult to obtain a sufficient silencing effect.

  Further, in an elevator with a long stroke in the hoistway, the elevator car is moved up and down at high speed, and as shown in FIG. 8, the air impinging on the upper surface of the ceiling plate 1 becomes turbulent flow 9 above the car and becomes a noise. 10, and this noise 10 enters the car 11 through the ventilation fan 7 from the outside air intake / exhaust port 8 and contributes to the problem of increasing the noise in the car 11. Further, the turbulent flow 9 does not occur only in the direction of the outside air intake / exhaust port 8 as shown in FIG. 8, but also occurs in the direction of the reinforcing rib 1c for reinforcing the ceiling plate 1, so that the reinforcing rib There is also a possibility that the turbulent flow 9 colliding with 1c is reflected to amplify the noise 10 and generate a larger noise. Such noise causes discomfort to the elevator user, so it is necessary to take measures against noise.

As one of such noise countermeasures, a technique disclosed in Patent Document 1 has been proposed. According to this proposal, fresh air taken from a ventilation fan is conducted into the upper part of the ceiling of the car. A ventilation duct and active noise control means for reducing low-frequency noise are provided, the target noise is detected and its waveform is analyzed, and sound waves with the same sound pressure and opposite phase are oscillated from the active speaker. By canceling out the noise, low-frequency noise that is difficult to reduce with a normal sound-absorbing material is reduced.
Japanese Patent No. 2896286

  However, the elevator car ventilator with a silencing function disclosed in Patent Document 1 described above needs to add a dedicated active noise control device in order to realize the silencing function. For this reason, there exists a problem that the manufacturing cost of an elevator car ventilation apparatus becomes expensive.

  Separately from the proposal of Patent Document 1, in the conventional elevator ventilator shown in FIGS. 7 and 8, the car shown in FIG. 8 is not provided on the ceiling plate 1 in the car 11, but in the car shown in FIG. It is conceivable to attach a ventilator to the side plate 12 of the inner 11. However, since a vent is opened in the side plate 12, an opening or a step is generated in a part of the side plate 12, which not only impairs the beauty. There is a problem that it is not preferable in terms of design. Further, in an elevator having a structure in which a sufficient space is not secured between the inner wall of the hoistway and the car, there is also a problem that a ventilation device cannot be installed on the outer side of the car.

  The present invention has been made in view of the above problems, and suppresses the generation of noise in the car due to the close proximity of the outside air intake / exhaust port and the air vent in the car at a low manufacturing cost, and the side plate in the car. The purpose of the present invention is to provide an elevator car ventilation device that ensures the design aesthetics of the elevator car.

In order to solve the above problems, an elevator car ventilation device according to a first configuration as a basic configuration of the present invention includes a ceiling cover plate that covers a ceiling plate that constitutes a ceiling together with an illumination structure in the elevator car from the outside of the car. A sealing material for blocking a space formed between the ceiling plate and the ceiling cover plate from the outside of the car, and air flow between the inside of the car and the space formed in the ceiling plate. A ventilation passage formed between any one of the ceilings and an outside air intake / exhaust port that allows air to flow between the space and the outside of the car. A ventilation fan that is provided in the vent of the ventilation passage and forcibly sucks and exhausts the air in the car and the outside air through the space and the outside air intake / exhaust, and a reinforcement that reinforces the entire ceiling A material that is small in the space A reinforcing rib for partitioning the image, is characterized by and a ventilation hole for ventilating between the small compartment said drilled in the reinforcing ribs between the vent port and the outside air intake and exhaust port.

  Here, the sealing material is a material for sealing the space sealed by the frame, the ceiling plate, and the ceiling cover plate constituting the ceiling from the outside of the car, and is formed in the ceiling by this sealing material. The space can prevent sound, vibration, heat, etc. from the outside of the car from being sound-proofed, sound-damped, vibration-damped or insulated. Therefore, the space surrounded by the frame body, the ceiling plate, and the ceiling cover plate blocks sound, vibration, and heat from the outside of the car except for the outside air intake and exhaust ports, and is also blocked from the inside of the cage except for the ventilation holes.

  In the elevator car ventilator according to a second configuration of the present invention, in the first configuration, at least one vent is provided at a corner of the ceiling plate, and the ventilation fan corresponds to the vent. And at least one corner of the space.

  In the elevator car ventilation device according to the third configuration of the present invention, a plurality of the vents are provided at the corners of the ceiling plate, and the ventilation fan corresponds to the plurality of vents at the corners of the space. It is characterized in that a plurality are provided.

In the elevator car ventilator according to the fourth configuration of the present invention, in the first configuration, between the ventilation fan and the ventilation hole, and between the ventilation hole and the outside air intake / exhaust port. It is provided with the damping member which each suppresses and suppresses sound propagation, and the damping member which suppresses the vibration of the said ceiling provided in the other location in the said space.

The elevator car ventilation device according to the fifth configuration of the present invention is the first configuration, wherein the ventilation hole is between the ventilation hole and the ventilation fan, and the outside air intake / exhaust port and the ventilation hole. It comprises the shielding board provided between at least one of these.

In the elevator car ventilator according to a sixth configuration of the present invention, in the first configuration, positions of the outside air intake / exhaust port, the ventilation hole, and the ventilation fan in the ventilation passage are mutually possible. It is characterized by being set so that it may become a remote relationship.

In the elevator car ventilator according to a seventh configuration of the present invention, in the first configuration, an intake / exhaust extension member that separates the outside air intake / exhaust port from at least one of the ventilation fan and the ventilation hole is provided in the ventilation. A passage is provided.

  The present invention can be manufactured at a low manufacturing cost, suppresses the generation of noise in the car due to the close proximity of the outside air intake / exhaust port and the air vent in the car, and improves the design aesthetics of the side plate in the car. An elevator car ventilation device to be secured can be provided.

  Hereinafter, embodiments of an elevator car ventilation device according to the present invention will be described in detail with reference to the accompanying drawings.

[First Embodiment]
As shown in FIGS. 1 and 2, the elevator car ventilation device according to the first embodiment includes a ceiling cover plate 14 that constitutes the ceiling 3 together with the ceiling plate 1, and the ceiling plate 1 and the ceiling cover plate 14. A sealing material 15 for sealing the space 24; a ventilation passage 16 formed between the vent 17 of the ceiling plate 1 and the outside air intake / exhaust port 8 drilled in any of the ceilings 3; And a ventilation fan 7 that forcibly sucks and exhausts the air. In the configuration of FIG. 1, the outside air intake / exhaust port 8 is formed in the frame 1 a constituting the ceiling 3, but the location where the outside air intake / exhaust port 8 is formed is a position where the outside of the car 13 communicates with the space 24. If so, it may be provided not on the frame body 1 a but on the ceiling cover plate 14.

  The ceiling cover plate 14 covers the ceiling plate 1 that constitutes the ceiling 3 together with the lighting structure 2 in the elevator car 11 from the car exterior 13. The sealing material 15 seals the space 24 formed between the ceiling plate 1 and the ceiling cover plate 14 with the inside of the car 11 so as to seal the space 24 and the inside 11 of the car. Protect from noise, vibration, heat, etc. The vent 1b is formed on the ceiling board 1 side to allow air to flow between the car 11 and the space 24. The outside air intake / exhaust port 8 is formed on the ceiling cover plate 14 side to allow air to flow between the space 24 and the outside of the car 13. The ventilation fan 7 is provided near the vent 1 b of the ventilation passage 16 and forcibly sucks and exhausts the air in the car 11 and the outside air outside the car 13 through the space 24 and the outside air intake / exhaust port 8.

  Describing a more detailed configuration of the first embodiment, in FIG. 1, the ceiling plate 1 is attached to the lower surface of a frame 1a made of, for example, a U-shaped steel material that opens outward, and the ceiling cover plate is the upper surface of the frame 1a. Is attached. The ceiling 3 of the elevator car is formed by sealing the upper and lower sides of the frame 1a surrounding the upper outer periphery of the space in the car 11 with the ceiling cover plate 14 and the ceiling plate 1, but the ceiling plate 1 and the ceiling cover plate A reinforcing rib 1c for reinforcement intersects with the vertical direction in the vertical and horizontal directions.

  Therefore, the space 24 formed by the frame 1a on the outer peripheral side, the ceiling plate 1 and the ceiling cover plate 14 is partitioned into small sections by the reinforcing rib 1c. For this reason, when the small compartment provided with the vent 1b and the small compartment provided with the outside air intake / exhaust 8 are different, the ventilation hole 17 is formed in the reinforcing rib 1c so that the ventilation passage 16 is not blocked by the reinforcing rib 1c. Has been.

  The space 24 sandwiched between the ceiling plate 1 and the ceiling cover plate 14 and enclosed and surrounded by the frame body 1a is reinforced by the reinforcing rib 1c in the vicinity of the central portion thereof. Since it is divided, the ventilation passage 16 communicates when the vent 1b and the outside air intake / exhaust 8 are provided in the same small section.

  However, according to the present invention, it is necessary to increase the sound insulation, vibration suppression and heat insulation effects by making the ventilation path between the vent 1b and the outside air intake / exhaust 8 as long as possible. When the opening 1b is provided in the same small section, noise, vibration, hot air, etc. generated by the movement of the elevator in the hoistway are transmitted from the outside air intake / exhaust port 8 to the ventilation port 1b opened in the car 11. The user in the car 11 will be uncomfortable. In order to prevent this, the ventilation passage 16 is set as long as possible, and the vent 1b and the outside air intake / exhaust 8 are provided in different small sections. For this reason, it is important to provide the ventilation hole 17 in the reinforcing rib 1c that partitions the small section from each other.

  In the elevator car ventilator according to the first embodiment, at least one vent 1b is provided at a corner of the car 11 of the ceiling board 1, and the ventilation fan 7 is associated with the vent 1b. One or more corners of the space 24 may be provided.

  Furthermore, in the elevator car ventilator according to the first embodiment, a plurality of vents 1b are provided at the corners of the car 11 of the ceiling board 1, and the ventilation fan 7 is a space corresponding to the plurality of vents 1b. A plurality of 24 corners may be provided.

  Further, in order to prevent the occurrence of vibration and noise associated with the raising and lowering of the elevator car, a sealing material for sealing the space 24 from the inside of the car 11 particularly on the ceiling plate 1 side in the sealed space 24. 15 is provided. The sealing material 15 blocks vibrations of the ceiling plate 1 due to the movement of the car from being transmitted to the car 11, and cool air and hot air conducted between the space 24 and the car 11. It includes a heat insulating member 19 and a sound damping member 5 that absorbs noise from the ventilation fan 7 provided in FIG.

  With the above configuration, the noise 10 from the outside air intake / exhaust port 8 is silenced and damped by the sound absorption effect and vibration damping effect of the long ventilation passage 16 and the sealing material 15 formed in the space 24, and the sealing material 15. The inside of the car 11 is insulated by the heat insulating effect.

  Due to the above-described actions, the elevator car ventilation system is excellent in silencing effect, can reduce noise in the car, does not give the elevator users discomfort due to noise, and has a simple structure and low manufacturing cost. Can be realized.

[Second Embodiment]
Next, an elevator car ventilation device according to a second embodiment will be described with reference to FIG. In the second embodiment, a noise suppression member 5 that suppresses the generation of sound is provided on the upper surface of the ceiling plate 1 between the ventilation fan 7 and the ventilation hole 17 in a small section where the ventilation fan 7 is installed. On the upper surface of the ceiling plate 1 of other small sections, a vibration damping member 18 that suppresses vibration is provided. Further, a heat insulating member 19 that blocks heat conduction is provided near the central portion of the car 11 where the lighting structure 2 is installed.

  The structural feature of the second embodiment is that the sound damping member 5, the vibration damping member 18, and the heat insulating member 19 as the sealing member 15 are provided near the place where noise, vibration, and heat are generated. It is to make the vibration damping and heat insulation effect more effective. Further, the outside air intake / exhaust port 8 is provided at a desired location of the frame 1 a surrounding the sealed space 24.

  With the above configuration, the noise 10 from the outside air intake / exhaust port 8 is silenced by passing through the sound absorbing material 5 between the ventilation fan 7 and the ventilation hole 17 and between the ventilation hole 17 and the outside air intake / exhaust port 8. Then, the vibration of the ceiling board 1 is suppressed by the other damping material 18 to prevent the propagation of sound.

  In this way, the sound is effectively silenced and damped by the sound absorption and damping effect of the sealing material 15. Due to such an action, it is possible to reduce the noise in the car with an excellent silencing effect, and to provide an elevator car ventilation device with a simple structure and low manufacturing cost without causing discomfort due to noise to the elevator user. Can be realized.

[Third Embodiment]
Next, an elevator car ventilation device according to a third embodiment of the present invention will be described with reference to FIGS. 3 and 4. In the second embodiment described above, the third embodiment is provided between at least one of the space between the ventilation fan 7 and the ventilation hole 17 and between the outside air intake / exhaust port 8 and the ventilation hole 17. The shield plate 20 is provided.

  As shown in FIG. 4, the shielding plate 20 is a frame provided outside the space 24 so that the noise 10 is propagated as much as possible around the small compartment formed by the reinforcing ribs 1 c that partition the space 24. It is formed to protrude inward from 1a. Due to the protrusion of the shielding plate 20, the noise 10 is detoured and propagated to the reinforcing rib 1 c provided inside the small section, and the noise suppression effect and the vibration suppression effect are provided on the upper surface of the ceiling plate 1 that is a propagation path of the noise 10. Since the sealing member 15 having is provided, vibration and noise are suppressed.

  According to the above configuration, the noise 10 from the outside air intake / exhaust port 8 is bypassed by the shielding plate 20 and between the ventilation fan 7 and the ventilation hole 17 and between the ventilation hole 17 and the outside air intake / exhaust port 8. The sound is silenced by passing over a certain sealing material 15 over a long distance.

  As described above, the silencing effect is appropriately exhibited, the noise in the car 11 can be efficiently reduced, and no uncomfortable feeling due to noise is given to the elevator user, and the configuration is simple. Elevator car ventilation system can be realized at low manufacturing cost.

[Fourth Embodiment]
Next, an elevator car ventilation device according to a fourth embodiment of the present invention will be described with reference to FIG. In the fourth embodiment, in the second embodiment described above, the positions of the outside air intake / exhaust port 8, the ventilation hole 17, and the ventilation fan 7 (ventilation port 1b) in the ventilation passage 16 are mutually as possible. It is set so as to be in a separated relationship.

  The noise 10 is guided from the outside air intake / exhaust port 8 to the ventilation passage 16 in the space 24, and is transmitted from the vent 1 b of the ceiling plate 1 to the interior 11 of the car by the ventilation fan 7 through the ventilation hole 17. Since the passage 16 bypasses a long distance in the space 24 and guides the noise 10, the sound is suppressed at a considerable rate.

  According to the elevator car ventilation device according to the fourth embodiment having the above-described configuration, the positional relationships among the outside air intake / exhaust port 8, the ventilation hole 17, and the ventilation fan 7 in the ventilation passage 16 are separated from each other. Since the noise reaches from the air vent 1b to the car 11 via a long distance in the space formed on the ceiling, the noise is sufficiently suppressed in the elevator car. Is done.

  Therefore, the user in the elevator car does not feel uncomfortable due to noise, and an elevator car ventilation device with a simple structure and low manufacturing cost can be realized.

[Fifth Embodiment]
Next, an elevator car ventilation device according to a fifth embodiment of the present invention will be described with reference to FIG. In the fifth embodiment, the ventilation passage 16 includes the intake / exhaust extension member 21 that separates the outside air intake / exhaust port 8 from at least one of the ventilation fan 7 and the vent 1b in the second embodiment described above.

  More specifically, as shown in FIG. 6, an intake / exhaust extension member 21 is attached to a part of a frame 1a having a U-shaped cross section, and the frame 1a has a U-shaped cross section that opens toward the car exterior 13. The outlet of the outside air intake / exhaust port 8 is extended to the vicinity of the ventilation fan 7 by closing the opening. Therefore, the ventilation passage 16 can be extended from the position of the outside air intake / exhaust port 8 shown in FIG. 5 to the position of the outside air intake / exhaust port 8 shown in FIG.

  According to the elevator car ventilator having the above configuration according to the fourth embodiment, the ventilation passage is provided between the vent hole and the car via a long distance in the space formed in the ceiling from the outside air intake / exhaust port. In addition to being provided, intake and exhaust extension members are provided using the U-shaped part of the frame so as to extend the outside air intake and exhaust ports, so noise is sufficiently suppressed in the elevator car. Sounded.

Sectional drawing which shows the structure of the elevator car ventilation apparatus which concerns on 1st Embodiment. The top view which shows the elevator car ventilation apparatus of 1st, 2nd embodiment. Sectional drawing which shows the elevator car ventilation apparatus which concerns on 3rd Embodiment. The partial top view which shows the elevator car ventilator which concerns on 3rd Embodiment. The partial top view which shows the elevator car ventilator which concerns on 4th Embodiment. The partial top view which shows the elevator car ventilator which concerns on 5th Embodiment. The perspective view which shows the conventional elevator car ventilation apparatus. Sectional drawing which shows the conventional elevator car ventilator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ceiling board 1a Frame 1b Ventilation hole 1c Reinforcement rib 2 Illumination structure 3 Ceiling 7 Ventilation fan 8 Outside air intake / exhaust 11 Car inside 13 Car exterior 14 Ceiling cover board 15 Sealing material 16 Ventilation passage 17 Ventilation hole 24 Space

Claims (7)

A ceiling cover plate that covers the ceiling plate that constitutes the ceiling together with the lighting structure in the elevator car from the outside of the car;
A sealing material that blocks the space formed between the ceiling plate and the ceiling cover plate from the outside of the car;
A vent hole formed in the ceiling plate to allow air to flow between the inside of the car and the space; and between the inside of the space and the outside of the car formed in any of the ceilings A ventilation passage formed between an outside air intake / exhaust port that enables the air to flow through,
A ventilation fan that is provided in the vent of the ventilation passage and forcibly sucks and exhausts the air in the car and the outside air through the space and the outside air intake / exhaust port;
Reinforcing material that reinforces the entire ceiling, and reinforcing ribs that partition the space into small sections;
A ventilation hole that is perforated in the reinforcing rib between the vent and the outside air intake / exhaust and ventilates between the small compartments;
An elevator car ventilator characterized by comprising:   The at least one vent hole is provided at a corner of the ceiling plate, and at least one ventilating fan is provided at a corner of the space corresponding to the vent hole. The elevator car ventilator according to 1.   The said ventilation hole is provided with two or more in the corner | angular part of the said ceiling board, The said fan for ventilation is provided with two or more in the corner | angular part of the said space corresponding to the said several ventilation hole. The elevator car ventilation device described. A noise control member for suppressing sound propagation provided between the ventilation fan and the ventilation hole, and between the ventilation hole and the outside air intake / exhaust port; and other members in the space The elevator car ventilator according to claim 1 , further comprising: a vibration damping member provided at a location to suppress vibration of the ceiling. And between the ventilation holes and the vent to claim 1, characterized in that it comprises a between the outside air intake and exhaust port and the ventilation hole, the shielding plate provided between at least one of The elevator car ventilation device described. The outside air intake and exhaust port, the ventilation holes, the mutual position in the ventilation passage of the ventilating fan, claim, characterized in that it is set such that the relationship of separating each other as much as possible 1 The elevator car ventilation device as described in 1. The elevator car ventilation device according to claim 1 , wherein the ventilation passage includes an intake / exhaust extension member that separates the outside air intake / exhaust port from at least one of the ventilation fan and the ventilation hole.

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