JP6943778B2 - Ducts equipped with an air volume adjustment mechanism and railway vehicles equipped with them - Google Patents

Description

The present invention relates to an air volume adjusting mechanism for a conditioned air duct of a railway vehicle.

Railroad vehicles supply temperature-harmonized harmonious air to the cabin space by an air conditioner in order to create a comfortable thermal environment in the cabin space where passengers live. Generally, one or two of these air conditioners are mounted on one railroad vehicle. In order to evenly deliver the harmonious air supplied from this air conditioner to the cabin space, the railroad vehicle is equipped with a harmonious air duct.

This conditioned air duct is equipped with an air volume adjusting mechanism in order to equalize the amount of conditioned air flowing out to the cabin throughout the cabin. For example, Patent Document 1 discloses a mechanism in which a closing plate is applied to an air blowing portion in an conditioned air duct to close a part of the air blowing portion and adjust the opening degree thereof (see Patent Document 1). ..

Japanese Unexamined Patent Publication No. 2011-162805

Patent Document 1 describes a conditioned air duct provided with a closing plate for adjusting the opening degree of the air blowing portion. However, in such a closing plate, there is a problem that it takes a long time to adjust the opening degree of the air blowing portion to a predetermined opening degree. Another problem is that the error in the opening degree (difference between the predetermined opening degree and the actual opening degree) that occurs in the adjustment work is large.

An object of the present invention is to provide a conditioned air duct capable of shortening the time required for adjusting the opening degree of the air blowing portion and reducing the error of the opening degree.

In order to solve the above problems, one of the representative conditioned air ducts of the present invention is a first plate material in which at least one plate material constituting the duct is composed of a plurality of openings through which air passes. A duct having a perforated portion, a movable plate that is superposed on the first perforated portion and has a second perforated portion, and a bolt that rotatably holds the movable plate along the upper surface of the plate material. , The total opening ratio for communicating the first perforated portion and the second perforated portion is determined by the rotation angle of the movable plate.

According to the present invention, it is possible to provide a conditioned air duct in which the time required for adjusting the opening degree of the air blowing portion is short and the error in the opening degree is small.

Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

FIG. 1 is a perspective view of a railroad vehicle according to an embodiment of the present invention. FIG. 2 is a perspective view of a conditioned air duct according to an embodiment of the present invention. FIG. 3 is a perspective view showing in detail the periphery of the air blowing portion of the conditioned air duct of FIG. FIG. 4 is a detailed view of the air blowing portion when the air volume adjusting plate is fixed in parallel with the side plate. FIG. 5 is a diagram showing the structure of the side plate. FIG. 6 is a diagram showing the structure of the air volume adjusting plate of the first embodiment. FIG. 7 is a diagram of an air blowing portion when the angle between the air volume adjusting plate and the side plate of the first embodiment is 1 degree. FIG. 8 is a diagram of an air blowing portion when the angle between the air volume adjusting plate and the side plate of the first embodiment is 2 degrees. FIG. 9 is a diagram of an air blowing portion when the angle between the air volume adjusting plate and the side plate of the first embodiment is 3 degrees. FIG. 10 is a diagram of an air blowing portion of the second embodiment. FIG. 11 is a diagram of the air blowing portion of the third embodiment.

Hereinafter, examples will be described with reference to the drawings.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 9. First, each direction related to the railroad vehicle is the width direction (sleeper direction) 510 of the railroad vehicle, the longitudinal direction 520 of the railroad vehicle, and the height direction 530 of the railroad vehicle. The direction 530 may be abbreviated.

FIG. 1 is a perspective view of a railroad vehicle 1 equipped with the present invention. The railroad vehicle 1 was erected on the underframe 11 forming the floor surface, the side structures 12 erected at both ends of the underframe 11 in the width direction 510, and both ends of the underframe 11 in the longitudinal direction 520. It is composed of a wife structure 13, a side structure 12, and a roof structure 14 mounted on the upper end of the wife structure 13 in the height direction 530.

Both ends of the underframe 11 constituting the railroad vehicle 1 in the longitudinal direction 520 are supported by a bogie (not shown) having a wheel set that rolls on the track. The side structure 12 constituting the railroad vehicle 1 is provided with a window 122 and an entrance / exit stand 124 used for passengers to get on and off. The entrance / exit stand 124 is provided with a side sliding door that can be opened / closed along the longitudinal direction of the railway vehicle 1.

The railroad vehicle 1 includes air conditioners 2a and 2b. The air conditioners 2a and 2b are a refrigeration cycle composed of a compressor, an outdoor heat exchanger, an indoor heat exchanger, etc. that constitute a refrigeration cycle in which a refrigerant circulates, an outdoor blower attached to the outdoor heat exchanger, and an indoor heat exchange. It consists of an indoor blower attached to the vessel, a heater for heating (attached to the indoor heat exchanger), and an exhaust blower that exhausts the air inside the vehicle to the outside of the vehicle.

On the ceiling of the railroad vehicle 1, there are a return duct that takes in the air inside the vehicle into each air conditioner, a harmonized air duct 32 that blows the harmonized air whose temperature and humidity are harmonized by each air conditioner to the guest room, and the inside of the vehicle. An exhaust air duct is provided to guide the air discharged from the vehicle to the outside of the vehicle to the air conditioner.

FIG. 2 is a perspective view of the conditioned air duct 32. The conditioned air duct 32 is arranged over the entire length of the cabin. The harmonious air duct 32 is provided with an inflow port 34a and an inflow port 34b on the upper surface, and the conditioned air 600 is supplied from the air conditioner 2a and the air conditioner 2b, respectively. At the lower part of the conditioned air duct 32, there is an outlet 36 continuously provided in the longitudinal direction 520, from which the conditioned air 600 is supplied into the cabin.

FIG. 3 is a perspective view showing in detail the periphery of the air blowing portion inside the conditioned air duct 32. The conditioned air 600 is blown to the guest room through the air outlets 39a, 39b, 39c, 39d of the conditioned air duct 32. In order to make the air volume distribution of the conditioned air in the longitudinal direction 520 in the guest room uniform, it is necessary to adjust the opening degree of the air blowing portions 39a, 39b, 39c, 39d. Although not shown, there are many air blowing portions in addition to the air blowing portions 39a, 39b, 39c, and 39d shown in the figure. Therefore, the work of adjusting the opening degrees of all the air blowing portions of the railway vehicle 1 is a work that requires a lot of man-hours.

FIG. 4 is a detailed view of the air blowing portion 39a when the air volume adjusting plate 42 is fixed in parallel with the side plate 40. The air blowing portion 39a is used to fix the angle between the side plate 40 of the conditioned air duct 32, the air volume adjusting plate 42, the fulcrum bolt 44 for holding the air volume adjusting plate rotatably on the side plate 40, and the side plate 40 and the air volume adjusting plate 42. It is composed of the fixing bolts 46 of the above.

FIG. 5 is a diagram showing a side plate 40. The side plate 40 includes a blind nut 48 for fastening the fulcrum bolt 44 and the fixing bolt 46. The blind nut 48 may be a welded nut. Further, the side plate 40 includes a first perforated portion 402 composed of a large number of round holes.

FIG. 6 is a diagram showing an air volume adjusting plate 42. The air volume adjusting plate 42 includes a second perforated portion 422 composed of a large number of round holes. Further, the air volume adjusting plate 42 includes a round hole 424 for the fulcrum bolt to penetrate and a long hole 426 for the fixing bolt to penetrate.

As shown in FIG. 3, the air blowing portion 39a having the above configuration forms an opening 49 in which the first porous portion 402 and the second porous portion 422 communicate with each other. The structure is such that conditioned air is blown out from the opening 49. Further, by loosening the fastening of the fixing bolt 46, the air volume adjusting plate 42 can be easily rotated around the fulcrum bolt 44 as the center of rotation. Therefore, the angle 700 between the air volume adjusting plate 42 and the side plate 40 is set to an arbitrary angle. be able to.

FIG. 7 is a diagram when the angle 700 between the air volume adjusting plate 42 and the side plate 40 is 1 degree. In this case, the area of the opening 49 in which the first porous portion 402 and the second porous portion 422 communicate with each other is smaller than that in FIG. This makes it possible to reduce the amount of conditioned air blown out from the duct.

8 and 9 are views when the angle 700 of the air volume adjusting plate 42 and the side plate 40 is set to 2 degrees and 3 degrees, respectively. In this way, the area of the opening 49 can be reduced by increasing the angle 700.

In the above, the adjustment work in the state where the conditioned air duct 32 is mounted on the ceiling of the railroad vehicle 1 has been described, but in the opening degree adjusting work of the air blowing portion 39a, the conditioned air duct 32 is mounted on the railroad car 1. It may be done without it. The present invention can be applied even when the conditioned air duct 32 is not mounted on the railway vehicle 1.

Further, in the above, an example in which the air volume adjusting structure of the present invention is applied to the conditioned air duct 32 for allowing the conditioned air to pass through is shown, but the present air volume adjusting structure is also used when adjusting the air volume of a duct such as a return duct. Can be used. The type of duct to which the air volume adjusting structure of the present invention is applied is not limited.

According to the configuration of this embodiment, for example, even when the railway vehicle 1 has a large number of air blowing portions, it is an easy operation to set the angle between the air volume adjusting plate and the side plate as the opening degree adjusting work. , The time required for the adjustment work can be shortened as compared with the conventional adjustment work. Further, for example, since the area of the opening is adjusted by the air volume adjusting plate provided on the side plate through which the air passes, the error of the opening degree can be reduced.

FIG. 10 is a diagram showing an air blowing portion 39a according to another embodiment of the present invention. The air blowing portion 39a of this embodiment is composed of the same components as those of the first embodiment. The difference between this embodiment and the first embodiment is that the second perforated portion 422 of the air volume adjusting plate 42 of this embodiment includes not only round holes but also polygonal holes 428a, 428b, 428c, and 428d. .. This makes it easier to identify the polygonal holes 428a, 428b, 428c, and 428d than other round holes.

As a result, in the work of setting the angle 700 between the air volume adjusting plate 42 and the side plate 40 to a predetermined angle, for example, after preparing a round bar in advance, for example, "in the pentagonal hole of the air volume adjusting plate 42 and the hole of the side plate 40. By setting "the angle at which the round bar is inserted", the angle 700 can be easily and accurately adjusted to a predetermined angle without measuring the angle 700 using an instrument such as a protractor.

In this embodiment, an example in which a polygonal hole is provided to distinguish it from a round hole is shown, but if it is possible to easily distinguish it from a round hole, the shape of the hole is not necessarily large. It does not have to be polygonal and is not intended to limit the shape of the holes of the present invention.

FIG. 11 is a diagram showing an air blowing portion 39a according to another embodiment of the present invention. The air blowing portion 39a of this embodiment is composed of the same components as those of the first embodiment. The difference between this embodiment and the first embodiment is that this embodiment includes only one fixing bolt 46. As a result, the man-hours required to fix the air volume adjusting plate 42 can be reduced as compared with the case where two fixing bolts 46 are provided.

As shown in Examples 1 to 3, the duct to which the present invention is applied has, for example, the following features.

A duct for distributing air (for example, a harmonious air duct 32), and at least one plate material (for example, a side plate 40) of the plate materials constituting the duct is composed of a plurality of openings through which air passes. A movable plate (for example, air volume) having a first porous portion (for example, a first porous portion 402), which is superposed on the first porous portion and has a second porous portion (for example, a second porous portion 422). A duct having an adjusting plate 42) and bolts (for example, fulcrum bolts 44 and fixing bolts 46) that rotatably hold the movable plate along the upper surface of the plate material, the first perforated portion and the first perforated portion. The total opening ratio (for example, the opening ratio indicating the ratio of the total flow rate of the harmonized air that can pass from all the air outlets of the harmonized air duct 32) that communicates with the two perforated portions is the rotation angle of the movable plate (for example). , The angle between the air volume adjusting plate and the side plate at each air outlet) is determined.

Further, for example, the shape of at least one of the openings of the second perforated portion may be circular, and the shape of at least one of the openings may be polygonal.

1 ... Railcar 11 ... Underframe 12 ... Side structure 122 ... Window 124 ... Entrance / exit stand 13 ... Wife structure 14 ... Roof structure 2a, 2b ... Air conditioner 32・ ・ ・ Harmonized air ducts 34a, 34b ・ ・ ・ Inflow port 36 ・ ・ ・ Outlet 39a, 39b, 39c, 39d ・ ・ ・ Air outlet 40 ・ ・ ・ Side plate 402 ・ ・ ・ First perforated part 42 ・ ・ ・・ Air volume adjustment plate 422 ・ ・ ・ Second perforated part 424 ・ ・ ・ Round hole 426 ・ ・ ・ Long hole 428a, 428b, 428c, 428d ・ ・ ・ Polygonal hole 44 ・ ・ ・ Supporting bolt 46 ・ ・ ・ Fixed Bolt 48 ・ ・ ・ Blind nut 49 ・ ・ ・ Opening 510 ・ ・ ・ Width direction of railcar 520 ・ ・ ・ Longitudinal direction of railcar 530 ・ ・ ・ Height (vertical) direction of railcar 600 ・ ・ ・ Harmonized air 700 ···angle

Claims (2)

A duct for distributing air
At least one plate material among the plate materials constituting the duct includes a first perforated portion composed of a plurality of openings through which air passes.
A movable plate that is superposed on the first porous portion and has a second porous portion,
A bolt for holding rotatably the friendly moving plate along the upper surface of the plate,
It is a duct with
Wherein the first porous portion, the total aperture ratio for communicating, and the second porous portion is determined by the rotation angle of the adjustable-rotation plate,
Of the openings in the second perforated portion, the shape of the predetermined opening is different from the other shapes.
The predetermined opening has a predetermined rotation angle of the movable plate when the predetermined round bar is inserted into the predetermined opening and the opening of the first perforated portion overlapping the predetermined opening. A duct characterized in that it is provided in the second perforated portion so as to be at an angle. A railroad vehicle comprising the duct according to claim 1.

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