JP2008213790A - Railroad vehicle - Google Patents

Railroad vehicle Download PDF

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JP2008213790A
JP2008213790A JP2007057682A JP2007057682A JP2008213790A JP 2008213790 A JP2008213790 A JP 2008213790A JP 2007057682 A JP2007057682 A JP 2007057682A JP 2007057682 A JP2007057682 A JP 2007057682A JP 2008213790 A JP2008213790 A JP 2008213790A
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seat
passenger
ceiling
adpi
air
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Yoshihiko Yokoyama
義彦 横山
Yasushi Muto
康司 武藤
Susumu Osuga
晋 大須賀
Koji Taniguchi
宏次 谷口
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Tokyu Car Corp
East Japan Railway Co
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Tokyu Car Corp
East Japan Railway Co
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Priority to JP2007057682A priority Critical patent/JP2008213790A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a railroad vehicle capable of reducing the draft feeling at passenger's feet and quickly improving comfort (ADPI) by changing the set temperature a little. <P>SOLUTION: In this railroad vehicle 1, conditioned air blown from a first under-seat supply opening 8 provided in right and left side surfaces 7a of a footrest 7 is sucked into a ceiling suction opening 10, rising from under a cross seat 4. An air flow blown out of the right and left sides of the footrest 7 and sucked in the ceiling 9 is formed inside a cabin. Such an air flow reduces the draft feeling at passenger's feet and near knees of the passenger. Further, comfort (ADPI) can be quickly improved by only changing the set temperature inside the cabin a little. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、クロスシートが採用された鉄道車両に関するものである。   The present invention relates to a railway vehicle employing a cross seat.

従来、このような分野の技術として、特開平8−85456号公報がある。この公報に記載された鉄道車両は、脚台によって保持されたクロスシートを有し、脚台の前後には、温風吹出グリルが設けられている。さらに、シートの背もたれには冷風吹出グリルが設けられ、脚台内には、冷房と暖房時に通路を切り替えるダンパが設けられている。ダンパの切り替えによって、冷房時には冷風吹出グリルから冷風が吹き出され、暖房時には、乗客の足元に向けて温風吹出グリルから温風が吹き出される。   Conventionally, as a technology in such a field, there is JP-A-8-85456. The railway vehicle described in this publication has a cross seat held by a footrest, and a hot air blowing grill is provided in front of and behind the footrest. Further, a cold air blowing grill is provided on the back of the seat, and a damper for switching the passage during cooling and heating is provided in the leg stand. By switching the damper, cold air is blown out from the cold air blowing grill during cooling, and hot air is blown out from the hot air blowing grill toward the passenger's feet during heating.

特開平8−85456号公報JP-A-8-85456 特開平10−109644号公報Japanese Patent Laid-Open No. 10-109644

鉄道車両では、乗務員が室内の温度(例えば25℃など)を設定する。そして、乗務員は、乗客の大半が寒いと感じると判断すると、室内の温度を上げるために設定温度を上げ、乗客の大半が暑いと感じると判断すると、室内の温度を下げるために設定温度を下げるのが一般的である。
しかしながら、前述した従来の鉄道車両では、乗客の足元に向けて風を吹出しているので、乗客はドラフト感を感じ易くなっている。しかも、乗務員が設定温度を例えば25℃から26℃に上げて、室温感知センサが室内設定温度と同じ26℃の室温を検知した場合でも、依然として足元のドラフト感は長時間残り続ける。従って、設定温度の僅かな上げ下げだけでは、快適性(ADPI(Air Diffusion Performance Index)すなわち空気拡散性能指標)を迅速に向上させることができないといった問題点があった。
In a railway vehicle, a crew member sets an indoor temperature (for example, 25 ° C.). When the crew determines that most of the passengers feel cold, the crew raises the set temperature to raise the room temperature, and when the crew determines that most of the passengers feel hot, the crew reduces the set temperature to lower the room temperature. It is common.
However, in the conventional railway vehicle described above, since the wind is blown toward the feet of the passengers, the passengers can easily feel the draft feeling. Moreover, even if the crew member raises the set temperature from 25 ° C. to 26 ° C., for example, and the room temperature detection sensor detects a room temperature of 26 ° C. which is the same as the room set temperature, the draft feeling of the feet still remains for a long time. Therefore, there is a problem that comfort (ADPI (Air Diffusion Performance Index), that is, an air diffusion performance index) cannot be rapidly improved only by slightly raising and lowering the set temperature.

本発明は、乗客の足元のドラフト感の軽減を可能にし、設定温度を僅かに変動させるだけで、快適性(ADPI)を迅速に向上させるようにした鉄道車両を提供することを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to provide a railway vehicle that can reduce the draft feeling of a passenger's feet and can quickly improve comfort (ADPI) by only slightly changing a set temperature.

本発明に係る鉄道車両は、車体の前後方向に対して直交する方向で座席が並べられたクロスシートと、車体の床面から突出してクロスシートを支持する脚台と、脚台の左右側面に設けられた第1の座席下吹出し口と、車体の天井に設けられた天井吸込み口とを備えたことを特徴とする。   A railway vehicle according to the present invention includes a cross seat in which seats are arranged in a direction orthogonal to the front-rear direction of the vehicle body, a leg base that protrudes from the floor surface of the vehicle body to support the cross seat, and a left and right side surface of the leg base. A first under-seat outlet provided and a ceiling inlet provided in a ceiling of the vehicle body are provided.

この鉄道車両においては、脚台の左右側面に設けられた第1の座席下吹出し口から吹き出された調和空気は、クロスシートの下から上昇しながら天井吸込み口に吸い込まれる。このように、本発明では、脚台の左右から風を吹出して、天井で空気を吸い込むような風の流れが室内で作り出されている。このような風の流れは、クロスシートに着座した乗客の足元に風が直接当たることがないので、乗客の足元でのドラフト感が軽減する。さらには、設定温度を僅かに変動させるだけで、快適性(ADPI)を迅速に向上させることができる。例えば、室内の温度を25℃に設定していて、乗客の大半が寒いと感じている場合、乗務員が、設定温度を0.5〜1℃上げるだけでも、快適性(ADPI)を素早く向上させることができる。これに対し、従来の空調にあっては、悪化した快適性(ADPI)を短時間で改善することは難しい。   In this railway vehicle, the conditioned air blown from the first under-seat outlet provided on the left and right side surfaces of the leg stand is sucked into the ceiling inlet while rising from under the cross seat. Thus, in this invention, the flow of the wind which blows off wind from the right and left of a footrest and inhales air with a ceiling is produced indoors. Since the wind does not directly hit the feet of the passengers seated on the cross seat, the draft feeling at the passenger's feet is reduced. Furthermore, comfort (ADPI) can be quickly improved by slightly changing the set temperature. For example, if the indoor temperature is set to 25 ° C and the majority of passengers feel cold, the crew can quickly improve comfort (ADPI) just by raising the set temperature by 0.5 to 1 ° C. be able to. On the other hand, in the conventional air conditioning, it is difficult to improve the deteriorated comfort (ADPI) in a short time.

また、車体の側窓に向けて空気を吹き出す側窓吹出し口を更に備えると好適である。側窓は、外気の温度変化や太陽光の影響を受けるので、温度負荷が高い。したがって、室内は側窓の温度変化を受けやすく、特に、窓際に座っている乗客は、側窓の温度変化の影響を受けやすいので、側窓吹出し口により側窓にエアーカーテンを作り出すことで、室内での快適性をより向上させることができる。   Further, it is preferable to further include a side window outlet for blowing air toward the side window of the vehicle body. Since the side window is affected by the temperature change of the outside air and sunlight, the temperature load is high. Therefore, the interior is susceptible to temperature changes of the side windows, especially passengers sitting by the window are easily affected by temperature changes of the side windows, so by creating an air curtain on the side windows by the side window outlet, Comfort in the room can be further improved.

また、脚台の前後面に設けられた第2の座席下吹出し口を更に備えると好適である。前後に配置された第2の座席下吹出し口を脚台に更に追加しても、初期の目的を達成することができる。   In addition, it is preferable to further include a second under-seat air outlet provided on the front and rear surfaces of the leg base. Even if the second under-seat outlets arranged at the front and rear are further added to the pedestal, the initial purpose can be achieved.

本発明によれば、乗客の足元のドラフト感の軽減を可能にし、設定温度を僅かに変動させるだけで、快適性(ADPI)を迅速に向上させることができる。   According to the present invention, it is possible to reduce the draft feeling of the passenger's feet, and it is possible to quickly improve the comfort (ADPI) only by slightly changing the set temperature.

以下、図面を参照しつつ本発明に係る鉄道車両の好適な実施形態について詳細に説明する。   Hereinafter, a preferred embodiment of a railway vehicle according to the present invention will be described in detail with reference to the drawings.

(第1の実施形態)
図1及び図2に示すように、鉄道車両1は、快適性を特に重視している特急列車、急行列車などであり、この鉄道車両1は、床、側、屋根、妻(何れも図示せず)からなる車体2を備え、側には、側窓3が設置されている。そして、車体2内には、床板2A、側壁2B、天井9等により、一定容積の車室Sが作り出されており、この車室S内には、固定式、回転式又は転換式のクロスシート4が車体2の前後方向で並べて配置されている。クロスシート4とは、車両1の長手方向に対して直交する方向に乗客が並んで着席する座席であり、横座席とも呼ばれている。
(First embodiment)
As shown in FIGS. 1 and 2, the railway vehicle 1 is a limited express train, express train or the like that places particular emphasis on comfort. The railway vehicle 1 includes a floor, a side, a roof, and a wife (all are not shown). A side window 3 is installed on the side. In the vehicle body 2, a fixed volume cabin S is created by a floor plate 2 </ b> A, a side wall 2 </ b> B, a ceiling 9, and the like, and a fixed, rotary, or convertible cross seat is formed in the cabin S. 4 are arranged side by side in the front-rear direction of the vehicle body 2. The cross seat 4 is a seat in which passengers are seated side by side in a direction orthogonal to the longitudinal direction of the vehicle 1, and is also called a horizontal seat.

各クロスシート4は、2人掛けであり、左側では座席Aと座席Bが並んでおり、右側では座席Cと座席Dが並んでおり、中央通路Eを挟んで左右に2台配置されている。各クロスシート4は、車体2の床面6から突出する脚台7の上部に固定され、各脚台7の左右側面7aには、左右一対の第1の座席下吹出し口8が設けられている。そして、床構体2Aの下方に配置されたダクト(図示せず)内を流動する調和空気が脚台7内に供給されている。   Each cross seat 4 is a two-seat, seat A and seat B are lined up on the left side, seat C and seat D are lined up on the right side, and two are arranged on the left and right with the central passage E in between. . Each cross seat 4 is fixed to an upper portion of a leg base 7 protruding from the floor surface 6 of the vehicle body 2, and a pair of left and right first under-seat outlets 8 are provided on the left and right side surfaces 7 a of each leg base 7. Yes. And the conditioned air which flows through the duct (not shown) arrange | positioned under 2 A of floor structures is supplied in the leg stand 7. FIG.

また、車体2の天井9の中央には、天井吸込み口10が設けられ、天井吸込み口10は、天井9の長手方向に沿って延在している。そして、天井吸込み口10から吸い込まれた空気は、屋根構体と天井9との間に配置されたダクト(図示せず)内を流動する。さらに、車体2に設けられた荷棚11の下部には、側窓3に向けて空気を吹き出すための側窓吹出し口13が設けられている。そして、荷棚11内に設けられたダクト11a内を流動する調和空気が側窓吹出し口13から排出される。   A ceiling suction port 10 is provided at the center of the ceiling 9 of the vehicle body 2, and the ceiling suction port 10 extends along the longitudinal direction of the ceiling 9. Then, the air sucked from the ceiling suction port 10 flows in a duct (not shown) disposed between the roof structure and the ceiling 9. Further, a side window outlet 13 for blowing air toward the side window 3 is provided at the lower part of the cargo rack 11 provided in the vehicle body 2. Then, conditioned air flowing in the duct 11 a provided in the cargo rack 11 is discharged from the side window outlet 13.

次に、このような鉄道車両1の空調に関する数値実験結果を述べる。   Next, numerical experiment results regarding air conditioning of such a railway vehicle 1 will be described.

図3に示すように、前から4番目の座席のみに着目して考察すると、左右の第1の座席下吹出し口8から排出された調和空気は、天井9に向けて広がりながら30秒後に天井吸込み口10まで達し、60秒後には室内Sで均一に広がってゆく様子が確認できた。そして、室内Sにおいて、第1の座席下吹出し口8と天井吸込み口10とが床面6側と天井9側とに位置することになるので、可能な限り流路を長くすることができ、ショートサーキットになる虞も回避され、室内Sの換気性は良好になる。   As shown in FIG. 3, considering only the fourth seat from the front, the conditioned air discharged from the left and right first lower seat outlets 8 spreads toward the ceiling 9 after 30 seconds. It was confirmed that it reached the suction port 10 and spread uniformly in the room S after 60 seconds. And in the room S, the first under-seat outlet 8 and the ceiling inlet 10 are located on the floor 6 side and the ceiling 9 side, so the flow path can be made as long as possible, The possibility of a short circuit is avoided and the ventilation of the room S is improved.

さらに、図4の(a)(b)(c)の3タイプのEDT(EffectiveDraft Temperature)について考察する。
このEDTは、室内の快適性を判定する指標として一般的に利用されており、(1)式により定義される。
EDT=(tx−tc)−8(Vx−0.15) … (1)
ただし、tx:局所温度(℃)
tc:平均気温(℃)
Vx:局所風速(m/s)
なお、−1.7℃≦EDT≦1.1℃で且つVx≦0.35m/Sの範囲を快適域とする。
また、評価対象としている空間において快適と判断された空間の割合を、ADPI(Air Diffusion Performance Index)すなわち空気拡散性能指標とする。そして、このADPIが高い程、快適性が高いと言える。
Further, three types of EDT (Effective Draft Temperature) of (a), (b) and (c) in FIG. 4 will be considered.
This EDT is generally used as an index for determining indoor comfort and is defined by the equation (1).
EDT = (tx−tc) −8 (Vx−0.15) (1)
Where tx: local temperature (° C)
tc: Average temperature (° C)
Vx: Local wind speed (m / s)
The range of −1.7 ° C. ≦ EDT ≦ 1.1 ° C. and Vx ≦ 0.35 m / S is defined as a comfortable range.
Further, the ratio of the space that is determined to be comfortable in the space to be evaluated is defined as an ADPI (Air Diffusion Performance Index), that is, an air diffusion performance index. And the higher this ADPI, the higher the comfort.

図4(a)は、本発明に係わる空調タイプであり、脚台の左右側面からのみ調和空気を吹出し、荷台から側窓に向けてから調和空気を吹出し、天井から空気を吸い込むタイプである(以下「タイプ1」という)。
図4(b)は、比較例1に係わる空調タイプであり、脚台の前後のみから調和空気を吹出し、荷台から側窓に向けてから調和空気を吹出し、天井から空気を吸い込むタイプである(以下「タイプ2」という)。
図4(c)は、比較例2に係わる空調タイプであり、荷台から乗客及び室内に向けて調和空気を吹出し、脚台の左右及び天井から空気を吸い込むタイプである(以下「タイプ3」という)。
FIG. 4 (a) is an air conditioning type according to the present invention, in which conditioned air is blown out only from the left and right side surfaces of the pedestal, conditioned air is blown out from the cargo bed toward the side window, and air is sucked from the ceiling ( Hereinafter referred to as “Type 1”).
FIG.4 (b) is an air conditioning type concerning the comparative example 1, and is a type which blows in conditioned air from only the front and back of the footrest, blows out conditioned air from the cargo bed toward the side window, and sucks air from the ceiling ( Hereinafter referred to as “Type 2”).
FIG.4 (c) is an air-conditioning type which concerns on the comparative example 2, and is a type which blows in conditioned air toward a passenger and a room from a cargo bed, and inhales air from the right and left of a leg stand, and a ceiling (henceforth "type 3"). ).

図5(a)は、床上0.09mの位置すなわち脚台7の左右に設けられた第1の座席下吹出し口8の位置におけるタイプ1の風速分布を示し、図5(b)は、床上0.09mの位置すなわち脚台の前後に設けられた座席下吹出し口の位置におけるタイプ2の風速分布を示している。図5に示すように、タイプ1ではレンジアウト(白抜け)が通路E内で多く見られる傾向を示し、タイプ2では座席側における乗客の足元でのレンジアウトが多くなっている。従って、タイプ1では座席に座っている乗客の足元で寒さを感じることが少なく、ドラフト感が軽減されている。これに対し、タイプ2では乗客の足元で寒さを感じる。以上の結果から、座席下吹出しに関して、脚台の左右側面からの吹出しは、脚台の前後面からの吹出しに対し優位であることが確認された。なお、座席上のレンジアウトは、人体モデル表面温度に起因するものである。   FIG. 5A shows the type 1 wind speed distribution at the position of 0.09 m above the floor, that is, the positions of the first under-seat outlets 8 provided on the left and right sides of the footrest 7, and FIG. The wind speed distribution of Type 2 is shown at the position of 0.09 m, that is, the position of the under-seat outlet provided at the front and back of the footrest. As shown in FIG. 5, type 1 shows a tendency that a large number of range-outs (white spots) are seen in the passage E, and type 2 shows a large range-out at the feet of passengers on the seat side. Therefore, in Type 1, there is little feeling of cold at the feet of passengers sitting in the seat, and the draft feeling is reduced. In contrast, Type 2 feels cold at the feet of passengers. From the above results, it was confirmed that the blowout from the left and right side surfaces of the footrest is superior to the blowout from the front and rear surfaces of the footrest with respect to the blowout under the seat. The range-out on the seat is caused by the human body model surface temperature.

図6は、床上1.2mの位置すなわち着座した乗客の頭付近における風速分布を示し、タイプ1では、際立ったレンジアウトはない。従って、乗客の頭部付近でのドラフト感については良好であると判断できる。これに対し、タイプ2では、風速分布に関してタイプ1と大差はなく、図示を省略する。   FIG. 6 shows the wind speed distribution at a position 1.2 m above the floor, that is, near the head of a seated passenger. In Type 1, there is no significant range-out. Therefore, it can be determined that the draft feeling in the vicinity of the passenger's head is good. On the other hand, type 2 is not much different from type 1 regarding the wind speed distribution, and is not shown.

図7は、床上0.6mの位置すなわち乗客の膝付近の位置におけるEDT分布を示す。タイプ1(図7(a)参照)では、レンジアウト(白抜け)が通路E内で多く見られる傾向を示し、タイプ2(図7(b)参照)では、座席側における乗客の膝付近でのレンジアウトが比較的多くなっている。従って、タイプ1では座席に座っている乗客の膝付近の快適性は比較的良好であり、これに対し、タイプ2では乗客の膝付近において、EDT分布のレンジアウトが多くなっているのが分かる。以上の結果から、座席下吹出しに関して、脚台の左右側面からの吹出しは、脚台の前後面からの吹出しに対し優位であることが確認された。なお、座席上のレンジアウトは、人体モデル表面温度に起因するものである。   FIG. 7 shows the EDT distribution at a position 0.6 m above the floor, that is, a position near the knees of the passenger. Type 1 (see Fig. 7 (a)) shows a tendency that a lot of range-outs (white spots) are seen in the passage E, and in Type 2 (see Fig. 7 (b)), in the vicinity of the passenger's knee on the seat side. The range out is relatively large. Therefore, in Type 1, the comfort around the knee of the passenger sitting on the seat is relatively good, whereas in Type 2, the range out of the EDT distribution is increased near the passenger's knee. . From the above results, it was confirmed that the blowout from the left and right side surfaces of the footrest is superior to the blowout from the front and rear surfaces of the footrest with respect to the blowout under the seat. The range-out on the seat is caused by the human body model surface temperature.

さらに、ADPI(空気拡散性能指標)について考察する。   Furthermore, ADPI (air diffusion performance index) is considered.

タイプ1に関して、図8に示すように、室内のADPIが49のとき、室内設定温度を僅か0.5℃下げると、2分後にADPIは約2倍の94まで改善されることがわかる。従って、タイプ1の場合は、設定温度を僅かに変動させるだけで、快適性(ADPI)が迅速(僅か2分)で向上することが分かる。これに対して、タイプ3の場合、図9に示すように、室内のADPIが81のとき、室内設定温度を僅か0.5℃下げても、2分後にADPIは72になり、あまり大きな変化は見られない。以上の結果から、脚台の左右の吹出し及び天井の吸込みの優位性が確認された。   Regarding Type 1, as shown in FIG. 8, when the indoor ADPI is 49, if the indoor set temperature is lowered by only 0.5 ° C., it can be seen that after 2 minutes, ADPI is improved to about 94, which is about double. Therefore, in the case of Type 1, it is understood that comfort (ADPI) is improved quickly (only 2 minutes) by slightly changing the set temperature. On the other hand, in the case of type 3, as shown in FIG. 9, when the indoor ADPI is 81, the ADPI becomes 72 after 2 minutes even if the indoor set temperature is lowered by only 0.5 ° C. Is not seen. From the above results, the superiority of the right and left blowout of the footrest and the suction of the ceiling was confirmed.

この鉄道車両1においては、脚台7の左右側面7aに設けられた第1の座席下吹出し口8から吹き出された調和空気は、クロスシート4の下から上昇しながら天井吸込み口10に吸い込まれる。このように、脚台7の左右から風を吹出して、天井9で空気を吸い込むような風の流れが室内で作り出されている。そして、このような風の流れは、乗客の足元及び膝付近のドラフト感が軽減する。さらには、室内設定温度を僅かに変動させるだけで、快適性(ADPI)を迅速に向上させることができる。例えば、室内の温度を25℃に設定していて、乗客の大半が寒いと感じている場合、乗務員が、設定温度を、0.5〜1℃上げるだけでも、快適性(ADPI)を素早く向上させることができる。これに対し、従来の空調にあっては、悪化した快適性(ADPI)を短時間で改善することは難しい。   In this railway vehicle 1, conditioned air blown from the first under-seat outlet 8 provided on the left and right side surfaces 7 a of the footrest 7 is sucked into the ceiling inlet 10 while rising from under the cross seat 4. . In this way, a wind flow is created indoors by blowing wind from the left and right sides of the footrest 7 and sucking air through the ceiling 9. And such a wind flow reduces the draft feeling near the feet and knees of the passengers. Furthermore, comfort (ADPI) can be quickly improved by slightly changing the indoor set temperature. For example, if the indoor temperature is set to 25 ° C and the majority of passengers feel cold, the crew can quickly improve comfort (ADPI) just by raising the set temperature by 0.5 to 1 ° C. Can be made. On the other hand, in the conventional air conditioning, it is difficult to improve the deteriorated comfort (ADPI) in a short time.

さらに、側窓3は、外気の温度変化や太陽光影響を受けるので、温度負荷が高い。したがって、室内Sは側窓3の温度変化を受けやすく、特に、窓際に座っている乗客は、側窓3の温度変化の影響を受けやすいので、側窓吹出し口13により側窓3にエアーカーテンを作り出すことで、室内Sの快適性をより向上させることができる。   Furthermore, since the side window 3 is affected by the temperature change of outside air and sunlight, the temperature load is high. Accordingly, the room S is easily affected by the temperature change of the side window 3, and in particular, a passenger sitting by the window is easily affected by the temperature change of the side window 3. The comfort of the room S can be further improved.

(第2の実施形態)
この実施形態において、第1の実施形態と同一又は同等な構成部分については、同一符号を付し、重複する説明を省略する。
(Second Embodiment)
In this embodiment, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

図10に示すように、鉄道車両20に設けられた各脚台21の左右側面7aには、左右一対の第1の座席下吹出し口8が設けられ、各脚台21の前後面7bには、左右に着座した乗客の足元の間に位置するように、前後一対の第2の座席下吹出し口22が設けられている。   As shown in FIG. 10, a pair of left and right first under-seat outlets 8 are provided on the left and right side surfaces 7 a of each leg base 21 provided on the railcar 20, and the front and rear faces 7 b of each leg base 21 are provided. A pair of front and rear second seat outlets 22 are provided so as to be positioned between the feet of passengers seated on the left and right.

図11(a)は、床上0.09mの位置すなわち脚台21に設けられた第1及び第2の座席下吹出し口8,22の位置における風速分布を示し、この図で示されるように、レンジアウト(白抜け)が通路E内で多く見られる傾向を示しているが、座席に座っている乗客の足元で寒さを感じることが少なく、足元のドラフト感は軽減されていることが分かる。なお、座席上のレンジアウトは、人体モデル表面温度に起因するものである。   FIG. 11A shows the wind speed distribution at a position of 0.09 m above the floor, that is, at the positions of the first and second under-seat outlets 8 and 22 provided in the footrest 21, and as shown in this figure, Although the range-out (outline) tends to be often seen in the passage E, it can be seen that the feeling of cold at the feet of passengers sitting on the seat is less and the draft feeling at the feet is reduced. The range-out on the seat is caused by the human body model surface temperature.

図11(b)は、床上0.6mの位置すなわち乗客の膝付近の風速分布を示し、この図で示されるように、座席上でのレンジアウトは存在するが、座席に座っている乗客の膝付近で寒さを感じることが少なく、膝付近のドラフト感は軽減されていると判断できる。図11(c)は、床上1.2mの位置すなわち着座した乗客の頭付近における風速分布を示し、乗客の頭部付近でのドラフト感は極めて少ないと判断できる。   FIG. 11 (b) shows the wind speed distribution at a position 0.6 m above the floor, that is, near the passenger's knee. As shown in this figure, there is a range-out on the seat, but the passenger sitting on the seat It can be judged that there is little feeling of cold near the knee and the draft feeling near the knee is reduced. FIG. 11C shows the wind speed distribution at a position 1.2 m above the floor, that is, near the head of the seated passenger, and it can be determined that the draft feeling near the passenger's head is extremely small.

図12(a)は、床上0.6mの位置すなわち乗客の膝付近のEDT分布を示し、この図で示されるように、座席に座っている乗客の膝付近での快適性は良好であると判断できる。図12(b)は、床上1.2mの位置すなわち着座した乗客の頭付近におけるEDT分布を示し、乗客の頭部付近での快適性は、比較的良好であると判断できる。なお、第2実施形態におけるADPI(空気拡散性能指標)については図示しないが、この実施形態においても、第1の実施形態と同様に、設定温度を僅かに変動させるだけで、快適性(ADPI)は迅速に向上する。   FIG. 12A shows the EDT distribution at a position 0.6 m above the floor, that is, near the passenger's knee, and as shown in this figure, the comfort in the vicinity of the passenger's knee sitting on the seat is good. I can judge. FIG. 12B shows an EDT distribution at a position 1.2 m above the floor, that is, near the head of the seated passenger, and it can be determined that the comfort near the head of the passenger is relatively good. In addition, although not shown about ADPI (air diffusion performance parameter | index) in 2nd Embodiment, also in this embodiment, just by changing preset temperature slightly, comfort (ADPI) similarly to 1st Embodiment. Improve quickly.

本発明に係る鉄道車両の第1の実施形態を示す横断面図である。1 is a cross-sectional view showing a first embodiment of a railway vehicle according to the present invention. 図1に示された鉄道車両の縦断面図である。It is a longitudinal cross-sectional view of the rail vehicle shown by FIG. 座席下から吹き出された空気の濃度分布を示す図である。It is a figure which shows the density | concentration distribution of the air which blown off from under the seat. (a)は本発明に係る鉄道車両を示す概略図、(b)は比較例1に係る鉄道車両を示す概略図、(c)は比較例2に係る鉄道車両を示す概略図である。(a) is the schematic which shows the railcar which concerns on this invention, (b) is the schematic which shows the railcar which concerns on the comparative example 1, (c) is the schematic which shows the railcar which concerns on the comparative example 2. 乗客の足元の風速分布を示す図である。It is a figure which shows the wind speed distribution of a passenger | crew's step. 乗客の頭付近の風速分布を示す図である。It is a figure which shows the wind speed distribution near a passenger | crew's head. 乗客の膝付近のEDT分布を示す図である。It is a figure which shows EDT distribution near a passenger's knee. 本発明に係る鉄道車両におけるADPIの時間的変化を示す図である。It is a figure which shows the time change of ADPI in the rail vehicle which concerns on this invention. 比較例2に係る鉄道車両におけるADPIの時間的変化を示す図である。It is a figure which shows the time change of ADPI in the rail vehicle which concerns on the comparative example 2. FIG. 本発明に係る鉄道車両の第2の実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows 2nd Embodiment of the rail vehicle which concerns on this invention. 第2の実施形態に係る風速分布を示す図である。It is a figure which shows the wind speed distribution which concerns on 2nd Embodiment. 第2の実施形態に係るEDT分布を示す図である。It is a figure which shows EDT distribution which concerns on 2nd Embodiment.

符号の説明Explanation of symbols

1,20…鉄道車両、2…車体、3…側窓、4…クロスシート、6…床面、7,21…脚台、7a…左右側面、7b…前後面、8…第1の座席下吹出し口、9…天井、10…天井吸込み口、13…側窓吹出し口、22…第2の座席下吹出し口、A〜D…座席、E…通路。   DESCRIPTION OF SYMBOLS 1,20 ... Railway vehicle, 2 ... Vehicle body, 3 ... Side window, 4 ... Cross seat, 6 ... Floor surface, 7, 21 ... Leg stand, 7a ... Left and right side surface, 7b ... Front and rear surface, 8 ... Below 1st seat Outlet, 9 ... Ceiling, 10 ... Ceiling suction port, 13 ... Side window outlet, 22 ... Second under seat outlet, AD ... Seat, E ... Passage.

Claims (3)

車体の前後方向に対して直交する方向で座席が並べられたクロスシートと、
前記車体の床面から突出して前記クロスシートを支持する脚台と、
前記脚台の左右側面に設けられた第1の座席下吹出し口と、
前記車体の天井に設けられた天井吸込み口とを備えたことを特徴とする鉄道車両。
A cross seat in which seats are arranged in a direction perpendicular to the longitudinal direction of the vehicle body;
A leg base that protrudes from the floor of the vehicle body and supports the cross sheet;
A first under-seat outlet provided on the left and right side surfaces of the footrest;
A railway vehicle comprising a ceiling suction port provided in a ceiling of the vehicle body.
前記車体の側窓に向けて空気を吹き出す側窓吹出し口を更に備えたことを特徴とする請求項1記載の鉄道車両。   The railway vehicle according to claim 1, further comprising a side window outlet that blows air toward a side window of the vehicle body. 前記脚台の前後面に設けられた第2の座席下吹出し口を更に備えたことを特徴とする請求項1又は2記載の鉄道車両。   The railway vehicle according to claim 1 or 2, further comprising a second under-seat outlet provided on the front and rear surfaces of the leg stand.
JP2007057682A 2007-03-07 2007-03-07 Railroad vehicle Pending JP2008213790A (en)

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JP2010111318A (en) * 2008-11-07 2010-05-20 Nippon Sharyo Seizo Kaisha Ltd Railroad vehicle
DE102019206615A1 (en) * 2019-05-08 2020-11-12 Siemens Mobility GmbH Vehicle for the transport of people with an air conditioning arrangement
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DE102019206615A1 (en) * 2019-05-08 2020-11-12 Siemens Mobility GmbH Vehicle for the transport of people with an air conditioning arrangement
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US11945475B2 (en) 2020-08-31 2024-04-02 Mitsubishi Electric Corporation Air conditioning system for a room with a seat, and method for air conditioning a room with a seat

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