JPH10109644A - Air conditioning system for railway rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-conditioning system for railway rolling stock which does not generate a draught and the like, and can carry out the air conditioning sufficiently while giving a comfortable feeling to passengers. SOLUTION: The air in a car room 2a is sucked from suction ports 24, 40, 52, 54, and the like existing almost at a ceiling 18 part, flows through exhaust passages 22 and exhaust pipes 62 and 64, and reaches to an air-conditioning device 60. After the air is temperature regulated in the air-conditioning device 60, it is delivered therefrom to a ventilation trunk 16 as a conditioned air, and blown off in the car room 2a from blowoff ports 15 and the like existing on the upper floor 4a. Consequently, since the conditioned air is filled in the car room 2a from the lower side, while pushing up the air in the car room 2a, the passengers can be surrounded by the comfortable conditioned air rapidly, and since the conditioned air reaches to the passengers directly while existing no hindering air on the way, it is not necessary to blow off the air strongly from the blowoff ports 15 and the like, and no draught is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an air conditioning system for a railway vehicle.

[0002]

2. Description of the Related Art In a conventional railway vehicle air conditioning system, an air conditioner is provided in a ceiling portion of a vehicle, and conditioned air is blown out from an outlet provided in the ceiling. I was breathing indoor air.

[0003]

However, in such an air-conditioning system, for example, when cool air is blown into the vehicle compartment from the outlet in summer, warm air existing above the vehicle compartment or a door or window, or By colliding with warm air rising from the passengers, the air mixes with the air and the temperature rises. Therefore, there is a problem in that the air is sucked from a suction port existing in the ceiling before the vehicle reaches the vicinity of the floor of the vehicle, and conditioned air cannot be sufficiently sent to the passengers.

[0004] Therefore, in order to allow sufficient conditioned air to reach the passengers, it is necessary to blow out sufficiently low-temperature conditioned air from the outlet, but there are problems in terms of energy consumption and noise. . Also, strong winds can hit certain passengers' heads, causing drafts,
In some cases, only certain passengers were cooled or their hair was disturbed, resulting in air conditioning that made passengers uncomfortable. Moreover, in the case of railway cars, the doors are frequently opened and closed, and it is necessary to blow out conditioned air with a large temperature difference to return to the original temperature early, and the above-mentioned passenger discomfort becomes noticeable. It was easy.

[0005] The same problem as described above has been encountered in the case where hot air is blown out in winter. Therefore, there has been a problem that conditioned air cannot be sufficiently supplied to passengers in a comfortable state both in summer and winter. An object of the present invention is to solve the above-mentioned problems and to provide an air conditioning system for a railway vehicle capable of performing sufficient air conditioning while keeping passengers comfortable.

[0006]

SUMMARY OF THE INVENTION One or more inventions are described herein and have the construction and features described below. The air-conditioning system for a railway vehicle of the present invention is provided on a floor of a passenger compartment of a railway vehicle or on a side wall near the floor, a conditioned air outlet, and provided on a ceiling or a side wall near the ceiling of the passenger compartment of the railway vehicle. In addition, the vehicle is provided with a suction port for air in the vehicle interior.

[0007] As described above, since the outlet of the conditioned air is provided on the floor of the passenger compartment of the railway vehicle or on the side wall near the floor, the conditioned air blown out from the outlet immediately covers the passengers. As in the past, if there is an outlet on the ceiling, there is hot air between the passengers in the summer and cold air in the winter. As a result, passengers may feel uncomfortable. However, as in the present invention, since the outlet is provided on the floor or on the side wall near the floor, it is possible to immediately reach around the passengers without performing a strong blowout, and furthermore, the conditioned air to be blown out in summer. The temperature of the passenger can be maintained at a sufficiently comfortable ambient temperature even at a temperature close to room temperature without extremely low temperature or extremely high temperature in winter. Therefore, the passengers are not given a feeling of draft or only specific passengers are cooled or heated, and the energy consumption is reduced, the noise is reduced, and a comfortable cabin environment can be formed.

[0008] An air conditioner which sucks vehicle interior air from the suction port, performs air conditioning processing on the air, and then blows out the air as conditioned air from the outlet port,
If provided below the floor of the railway vehicle, the air conditioner, which is a heavy object, is located below the vehicle, so that the center of gravity of the vehicle is lowered, which also contributes to the stability of the vehicle. Also,
There is no need to attach heavy objects to the ceiling, so there is no need to reinforce the ceiling. Further, since the air blowing may be weaker than in the conventional case, the air can be sufficiently blown even if the air blowing path is narrow, which is advantageous in cost.

The air passage from the air conditioner to the air outlet may be specially provided by a pipe or the like. However, when the floor of the passenger compartment has a double floor, the inside of the double floor is used as the air passage. May be. For example, when the floor of a railway vehicle uses a hollow structure, the conditioned air can be blown to the outlet without using special piping by using the internal hollow part of the hollow structure as a ventilation path. Can be. In this case, since it is not necessary to provide a special air passage for blowing the conditioned air to the outlet, the configuration is simplified and the manufacturing cost can be reduced.

[0010] By providing a through hole in a rib partitioning the internal hollow portion of the hollow structure, the internal hollow portion is communicated with, and air can be circulated between the internal hollow portions, so that it can be widely spread inside the floor. The conditioned air may be supplied to blow out from each outlet. The conditioned air blown out from the floor of the passenger compartment or the side wall near the floor can perform sufficient air conditioning even if the flow velocity is small. For example, the flow rate of the conditioned air blown out from the outlet is 1-2 m. / Sec. Conventionally, if the speed is not more than 6 to 7 m / sec, sufficient cooling and heating cannot be performed. Therefore, according to the present invention, a large-sized air blower is not required, energy consumption is reduced, noise is reduced, and a strong wind does not hit a passenger, so that a comfortable cabin environment is achieved. In addition, if the flow velocity is about 1 to 2 m / sec, the dust on the floor does not fly up,
There is no problem in hygiene.

The position of the outlet on the floor may be provided, for example, in a passage in a passenger compartment of a railway vehicle,
It may be provided in a seat installation area of a passenger compartment of a railway vehicle. In addition, the outlet may be provided in the lower wall portion of the window of the railway vehicle by using the space inside the lower wall portion of the window of the railway vehicle for the ventilation path. When provided on the side wall portion in this way, the outlet is not blocked by the passenger's foot.

In addition, when the air passage is provided inside the floor, it is easy to introduce the conditioned air in the air passage inside the floor from the base of the seat into the seat. Therefore, an in-seat ventilation path is provided inside the seat installed on the floor of the railway vehicle, the in-seat ventilation path is connected to the ventilation path in the floor, and further, a seat outlet is provided on the surface of the seat, and The conditioned air may be blown out of the seat outlet through the air passage.

As a result, the conditioned air is quickly supplied to the passenger, and the passenger's environment can be quickly made comfortable. Since the flow velocity is low and the temperature difference from the room temperature can be small, the passenger does not feel a draft. Further, in order to match the passenger's preference, the seat may be provided with a blowing adjustment mechanism for adjusting one or both of the blowing amount and the blowing direction of the conditioned air from the seat blowing port.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment] FIGS. 1 to 3 show one embodiment of the present invention. FIG. 1 is a vertical cross-sectional view of a passenger car 2 as a railway vehicle cut along a plane perpendicular to a traveling direction. FIG. 2 is a longitudinal sectional view taken along the traveling direction of the passenger car 2. FIG. 3 is a plan view of the passenger car 2 with a ceiling portion removed. The doors and the like are not shown.

The passenger car 2 has a double floor 4 composed of an upper floor 4a and a lower floor 4b. The center of the upper floor 4a forms a passage 6, and seats 8, 10 for two persons are provided on both sides of the passage 6. Are arranged. In the upper floor 4a, air outlets 14, 1 covered with air-permeable slit-like or net-like covers 12, 13 are provided.
5 is provided in the area of the passage 6 and in the area where the seats 8, 10 are arranged. Therefore, air can flow from the air passage 16 inside the double floor 4 into the vehicle interior 2a.

A discharge passage 22 is also provided between the ceiling 18 and the roof 20, and a suction port 24 is provided in the ceiling 18 and is covered with a slit-like or net-like cover 26 having air permeability. . The discharge passage 22 is provided on the ceiling 18.
Side wall portions 32, 3 up to shelves 28, 30 continuously from the side
4 is provided continuously, and its inner walls 32a and 34a are also provided with air-permeable slit-shaped or net-shaped covers 3
Suction ports 40, 42 covered with 6, 38 are provided. Furthermore, the rear wall 44 in the front-rear direction continuous with the ceiling 18,
46 also has a double structure, and its internal space is continuous with the discharge passage 22 on the 18 side. Of the inner walls 48, 50,
Suction ports 52 and 54 are provided at positions substantially in contact with the ceiling 18, and are covered with air-permeable slit-shaped or net-shaped covers 56 and 58. Therefore, air can flow from the interior of the vehicle compartment 2a to the discharge path 22.

An air conditioner 60 is provided below the lower floor 4b, and sends out conditioned air whose temperature has been adjusted to the air passage 16 through the lower floor 4b. In addition, the air conditioner 60
Is sucking air from the discharge passage 22 inside the end walls 44, 46 via the discharge pipes 62, 64.

Therefore, the air inside the cabin 2a is sucked from the suction ports 24, 40, 42, 52, 54 existing in the ceiling 18 or in a portion almost in contact with the ceiling 18, and the discharge passage 22 and the discharge pipe 62 are provided. , 64 and reach the air conditioner 60. After the temperature is adjusted in the air conditioner 60, the air is sent from the air conditioner 60 to the air passage 16 as conditioned air. Then, the air is blown into the vehicle interior 2a from the air outlets 14 and 15 existing in the upper floor 4a. In this way, the conditioned air flows from the upper floor 4a side to the ceiling 18 side, whereby air conditioning in the vehicle interior 2a is performed.

As described above, since the conditioned air is supplied from the floor side, the air between the ceiling 18 and the seats 8 and 10 of the passenger compartment 2a is stirred while the air is supplied from the ceiling 18 side as in the conventional case. It is no longer possible to reach the seats 8,10. That is, as shown by the arrow in the figure, the conditioned air is filled in the passenger compartment 2a from below while pushing up the air in the passenger compartment 2a from the feet of the passenger, so that the passenger can be quickly wrapped in comfortable conditioned air. In addition, since the air reaches the passenger directly without any obstructive air, the air outlet 1
There is no need to blow out strongly from 4,15. For example, the flow velocity of the conditioned air from the outlets 14 and 15 is 1 to 2 m.
Per second. An extremely low flow rate is sufficient as compared with 6 to 7 m / sec or more conventionally.

For this reason, a large output is not required for the air conditioner 60, the size of the air conditioner 60 can be reduced, and energy consumption and noise are reduced. Furthermore, even if conditioned air blows out from the floor side, if the flow velocity is about 1 to 2 m / sec,
No need to worry about dust. [Embodiment 2] The difference from Embodiment 1 is that FIGS.
As shown in the figure, the outlet 11 covered by the cover 112
4 is provided at a portion of the inner wall 132a of the double side wall 132 provided below the window 103, which is substantially in contact with the double floor 104, and the upper floor 104a has no outlet. The suction port 124 on the ceiling 118 side,
140, 152, 154, discharge pipes 162, 164, and other configurations are the same as those in the first embodiment.

As described above, even if the position of the outlet 114 is on the side wall portion, it exists almost at the portion in contact with the upper floor 104a, so that the air conditioning effect is the same as that of the first embodiment.
However, in the second embodiment, since there is no outlet on the upper floor 104a, even if a person stands in the passage 106, the outlet of the conditioned air is not hindered.

[Embodiment 3] In Embodiment 3, as shown in FIG. 6A or 6B, the internal space of the double floors 204 and 304 is partitioned by reinforcing ribs 205 and 305. The ribs 205, 3
05 differs from the first and second embodiments in that through holes 205a and 305a are opened at appropriate positions.

The double floors 204, 304 provided with such ribs 205, 305 are used for reducing the weight of railway vehicles. In the third embodiment, the ribs 205, 3
By providing through-holes 205a and 305a in 05,
Almost the entire internal space of the double floors 204 and 304 is
16 and 316, the conditioned air can be sent from the air conditioners 260 and 360 and blown out from the outlets 214 and 215 as shown in FIGS.

Therefore, such a double floor 204, 3
The present invention can be applied to a railway vehicle using the 04, and produces the same effect as the first embodiment. In the first and second embodiments, the outlets 14, 15, 114
In order to blow out conditioned air uniformly at substantially the same flow rate from the air, the air passages 16 and 116 do not use the internal space of the double floors 4 and 104 as they are, but use air-conditioning pipes whose diameters are adjusted. Devices 60 and 160 and outlets 14 and 1
In the third embodiment, the through holes 205a, 205 provided in the ribs 205, 305 need to be connected.
Only by adjusting the position and diameter of 5a, each outlet 21
Since the flow rate of the air blown out from 4,215 can be made substantially uniform, an air duct is not required, which is advantageous in terms of cost.

[Embodiment 4] In Embodiment 4, FIG.
As shown in the figure, in addition to the configuration of the first embodiment, the in-seat air passages 516, 516a,
b, the upper surface 410a of the armrest 410 and the backrest 4
12 is different in that the seat outlets 420 and 422 of the in-seat air passages 516a and 516b that are branched from the in-seat air passage 516 are provided on the front surface 412a.

To the seat outlets 420 and 422,
Leg 4 connected to air passage 416 inside double floor 404
The conditioned air is sent out from the air conditioner via an in-seat air passage 516, an adjustment valve 426, an in-seat air passage 516a in the armrest 410, and an in-seat air passage 516b in the backrest 412 provided in the 08a. .

The armrest 410 is provided with a manual adjusting section 424, and when the passenger adjusts the valve operating section of the manual adjusting section 424, the adjusting valve 426 is adjusted, so that the seat outlets 420, 422 blow out. The flow rate is adjustable. Therefore, the passenger directly enters the seat 40
Since the vehicle can be in contact with the conditioned air through the hood 8, even if the door or the like of the vehicle is opened and outside air enters, the vehicle can be always surrounded by the conditioned air, and a comfortable environment can be maintained. Also, when a newly-ridden passenger sits on the seat 408, the passenger is immediately wrapped in conditioned air, so that the passenger is immediately in a comfortable state.

[Others] In the second embodiment, the outlet 114 is provided only on the double side wall 132 provided below the window 103. However, as in the first embodiment, the outlet is also provided on the floor side. May be.

Also, in the third and fourth embodiments, an outlet may be provided on the double side wall provided below the window as in the second embodiment. In each of the embodiments, the exhaust passage 22 uses the inner space of the side wall or the ceiling of the double structure. However, the exhaust passage 22 may be piped from the inlet to the air conditioner.

[Brief description of the drawings]

FIG. 1 is an explanatory front view of an outlet arrangement according to the first embodiment;

FIG. 2 is an explanatory side view of an outlet arrangement according to the first embodiment;

FIG. 3 is an explanatory plan view of an outlet arrangement according to the first embodiment;

FIG. 4 is an explanatory side view of the outlet arrangement according to the second embodiment.

FIG. 5 is an explanatory front view of an outlet arrangement according to the second embodiment.

FIG. 6 is an explanatory diagram of an air passage in a floor according to a third embodiment.

FIG. 7 is an explanatory front view of an air passage in a third embodiment.

FIG. 8 is an explanatory plan view of an air passage in the third embodiment.

FIG. 9 is a configuration explanatory view of an air passage in a seat according to a fourth embodiment.

[Explanation of symbols]

2: Passenger car 2a: Cabin 4,104: Double floor
4a: Upper floor 4b: Lower floor 6: Passage 8, 10: Seat 12, 13: Cover 14, 15, 114 ... Outlet 16, 116: Ventilation path 18: Ceiling 20: Roof
22 ... discharge passage 24, 40, 42, 52, 54 ... suction port 26 ...
Covers 28, 30 ... shelves 32, 34 ... side wall portions 32a,
34a ... inner wall 36, 38 ... cover 44, 46 ... wife wall 48,5
0 ... inner wall 56, 58 ... cover 60, 160 ... air conditioner 62, 64 ... discharge pipe 103 ... window 104 ... double floor 1
04a Upper floor 106 Passage 112 Cover 114 Outlet 118 Ceiling 124, 140, 152, 154 Inlet 13
2: Double side wall 132a: Inner wall 162, 164: Discharge pipe 20
4, 304: double floor 205, 305: rib 205a, 305a: through hole 214, 215: outlet 216, 316: air passage 260, 360: air conditioner 404: double floor
408: Seat 408a: Leg 410: Armrest 410a: Upper surface
412: Backrest 412a: Front surface 416: Ventilation path 420, 422
… Seat outlet 424… Manual adjustment unit 426… Adjustment valve 516, 516a, 516b

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kenji Hiraoka 7033-182 in Shin Nihon Air Conditioning Co., Ltd. in Chino City, Nagano Prefecture New Japan Air Conditioning Co., Ltd.

Claims (11)

[Claims] 1. A conditioned air outlet provided on a floor or a side wall near a floor of a passenger compartment of a railway vehicle, and a vehicle interior air provided on a ceiling or a side wall near the ceiling of the passenger compartment of the railway vehicle. An air conditioning system for a railway vehicle, comprising: a suction port; 2. An air conditioner, which is provided below the floor of the railway vehicle, wherein an air conditioner that sucks vehicle interior air from the suction port, performs air conditioning processing on the air, and then blows out the air as conditioned air from the outlet port. The air conditioning system for a railway vehicle according to claim 1, wherein: 3. The railway vehicle according to claim 1, wherein the floor is a double floor, and the conditioned air is blown to the outlet through an air passage inside the double floor. Air conditioning system. 4. The floor of the railway vehicle uses a hollow structure, whereby the conditioned air is blown to the blow-out port by using an internal hollow portion of the hollow structure as an air passage. The railway vehicle air conditioning system according to claim 1. 5. A method according to claim 5, wherein a through-hole is provided in a rib partitioning the internal hollow portion of said hollow structure so as to communicate with said internal hollow portion so that air can flow between said internal hollow portions. The railcar air conditioning system according to claim 4. 6. The air conditioner according to claim 1, wherein the flow rate of the conditioned air blown out from the blowout port is 1 to 2 m / sec.
6. The air-conditioning system for a railway vehicle according to any one of 5. 7. The air conditioning system for a railway vehicle according to claim 1, wherein the outlet is provided in a passage in a passenger compartment of the railway vehicle. 8. The air conditioning system for a railway vehicle according to claim 1, wherein said outlet is provided in a seat installation area of a passenger compartment of said railway vehicle. 9. The railway vehicle according to claim 1, wherein said outlet is provided on a lower wall portion of a window of said railway vehicle.
7. The air-conditioning system for a railway vehicle according to any one of 6. 10. An in-seat air passage provided inside a seat installed on the floor of the railway vehicle and connected to an air passage in the floor, and an in-seat air passage provided on a surface of the seat. The air conditioning system for a railway vehicle according to any one of claims 3 to 9, further comprising: a seat outlet connected to the vehicle. 11. The air conditioner for a railway vehicle according to claim 10, wherein the seat is provided with a blow-off adjusting mechanism for adjusting one or both of a blowing amount and a blowing direction of the conditioned air from the seat blow-out opening. system.