JP5361413B2 - Vehicle underfloor equipment temperature detection device - Google Patents
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本発明は、車両の床下機器から発する放射熱を検知する装置、より詳細には、車両の床下機器の発熱部位の温度を、外部から非接触で且つリアルタイムで、しかも風雨、降雪、日射等の環境変動に伴う外乱の影響を抑制して、高精度に検出するための車両の床下機器温度検知装置に関するものである。 The present invention relates to a device for detecting radiant heat emitted from an underfloor device of a vehicle, more specifically, the temperature of a heat generation part of the underfloor device of a vehicle is contactless and real-time from the outside, and in addition to wind, rain, snowfall, solar radiation, etc. The present invention relates to a vehicle underfloor equipment temperature detection device for detecting with high accuracy while suppressing the influence of disturbance due to environmental fluctuations.
近年、旅客列車等の鉄道車両あるいは新交通システム、ガイドウェイ型自動車、モノレール等既定の走行路を走行する車両の床下に配置されている床下機器は、電子化、小型化および静止機器化が進展しており、これらは、省エネルギー、省スペース、信頼性の向上およびメンテナンスの簡易化に寄与するものである。しかしながら、鉄道技術の面から考察すれば、鉄道技術への最新技術の応用はまだ過渡期にあると考えられる。
また、車両の保守管理は、設備や人的資源の運用の面から、将来の動態検査を中心とした方法への転換が必要とされており、車両故障や火災等の予防保全、早期発見のためにも、騒音、振動および機器加熱等の状況をリアルタイムで計測し、正常値と比較することが重要な意味を持つものと考えられている。
このような観点から、従来においても、車両の床下に設置されたモータ、ブレーキ等の発熱部位の温度を検出して、各発熱部位における検出温度から車両の異常を判断することが試みられている。例えば、従来は、車両が停止してから温度検出器を用いて発熱部位の温度を測定することが行なわれていた。また、従来は、各車両の発熱が予測される部位に温度検出器を設置して車両の走行中においても車両の床下に配置されたモータやブレーキ等の発熱部位の温度を測定することも行なわれていた。
In recent years, underfloor equipment placed under the floor of vehicles traveling on a predetermined traveling path such as railway vehicles such as passenger trains, new transportation systems, guideway type automobiles, monorails, etc. has progressed to electronic, miniaturization and stationary equipment. These contribute to energy saving, space saving, improvement of reliability and simplification of maintenance. However, from the perspective of railway technology, the application of the latest technology to railway technology is still in transition.
In addition, the maintenance of vehicles requires a shift to a method that focuses on future dynamic inspections in terms of the operation of equipment and human resources, and preventive maintenance and early detection of vehicle failures and fires, etc. Therefore, it is considered that it is important to measure the situation such as noise, vibration and equipment heating in real time and to compare with the normal value.
From this point of view, conventionally, attempts have been made to detect the temperature of heat generating parts such as motors and brakes installed under the floor of the vehicle, and to determine vehicle abnormality from the detected temperature at each heat generating part. . For example, conventionally, the temperature of a heat generating portion has been measured using a temperature detector after the vehicle has stopped. Conventionally, a temperature detector is installed at a site where heat generation of each vehicle is predicted, and the temperature of a heat generation site such as a motor or a brake disposed under the floor of the vehicle is measured even while the vehicle is running. It was.
なお、このような状況にあって、鉄道車両等の車軸を回転可能に支持する車軸軸受けは、旧来の潤滑油等の液体潤滑に依存する滑り軸受けから、固体潤滑を利用した転がり軸受けに変わってきており、信頼性と寿命が各段に向上している。しかしながら、貨物列車の一部には、未だ滑り軸受けも残っており、旅客列車における転がり軸受けについても過熱および焼損等の事故は皆無ではない。
その背景には、鉄道車両等の保守要員の高齢化と技術伝承の問題があり、１００％完全な車両保守／整備は今後とも達成することが困難である。一方、軸受け等のいわゆる「走り装置」の故障または損傷は、直接的に走行の安全性を脅かし、車両火災あるいは脱線といったような重大事故につながる要因となる。
従来の車両の外部、つまり地上側からの車両の床下発熱機器の温度検出方式は、走行列車が一旦停止してからでないと発熱部位の温度測定を行うことができないため、発熱部位の温度を正確に且つ即時的に測定することができず、また発熱部位の温度測定を部位毎にその都度行わなければならないため、測定作業に多くの手間と時間を要するという難点がある。
In such a situation, the axle bearing that rotatably supports the axle of a railway vehicle or the like has changed from a conventional sliding bearing that depends on liquid lubrication such as lubricating oil to a rolling bearing that uses solid lubrication. Reliability and lifespan are improved in each stage. However, some of the freight trains still have sliding bearings, and there are no accidents such as overheating and burning of rolling bearings in passenger trains.
The background is the aging of maintenance personnel such as railway vehicles and technical transfer problems, and 100% complete vehicle maintenance / maintenance is difficult to achieve in the future. On the other hand, a failure or damage of a so-called “running device” such as a bearing directly threatens the safety of running, and becomes a factor that leads to a serious accident such as a vehicle fire or derailment.
The conventional temperature detection method of the vehicle underfloor heating equipment from outside the vehicle, that is, from the ground side, can not measure the temperature of the heat generating part until the traveling train stops once, so the temperature of the heat generating part is accurately measured. In addition, it cannot be measured instantaneously, and the temperature measurement of the exothermic part must be performed for each part, so that there is a problem that a lot of labor and time are required for the measurement work.
一方、従来の車両側に温度検出器を設置して測温する方式にあっては、発熱部位毎に温度検出器を設置しなければならないため、多数の温度検出器およびその出力信号の処理装置が必要となり、各車両にこれらを設置するとなると、膨大な経費が必要となるという難点がある。
また、車両の軸受け等の焼き付きを回避するため、軸受け等の温度を検出する温度センサとして、温度ヒューズを設ける方策も採られることがある。しかしながら、この場合には、測温個所の過熱による溶断以外に振動等による温度ヒューズの切断が生じるなどの誤動作が発生し易く、信頼性に欠けるという難点がある。
このため、軸受けを収納する軸箱等の温度を外部から測定することによって異常を検知し、事故を未然に防止するシステムの必要性が増大してきた。しかしながら、外部からの温度検出は、走行車両の周囲環境、特に風雨および降雪のような気象状況、並びに列車風等による外乱の影響を受けるため、精度の高い温度計測が容易ではない。このような周囲環境による外乱の影響を低減するためには、温度測定部を収める防護ケースなどが用いられるが、それだけでは外乱の影響を完全に除去することは困難であり、外乱による影響を校正する校正手段を備えることが必要である。
On the other hand, in the conventional method of installing a temperature detector on the vehicle side and measuring the temperature, a temperature detector must be installed for each heat generation part, so a large number of temperature detectors and their output signal processing devices When these are installed in each vehicle, there is a problem that enormous expenses are required.
Further, in order to avoid seizure of a vehicle bearing or the like, a measure of providing a temperature fuse as a temperature sensor for detecting the temperature of the bearing or the like may be taken. However, in this case, there is a problem that malfunction is likely to occur, such as a thermal fuse being cut due to vibration or the like in addition to fusing due to overheating of the temperature measuring location, and reliability is lacking.
For this reason, there has been an increasing need for a system that detects an abnormality by measuring the temperature of a shaft box or the like that houses a bearing from the outside to prevent an accident. However, since temperature detection from the outside is affected by the surrounding environment of the traveling vehicle, particularly weather conditions such as wind and rain and snowfall, and disturbances caused by train winds, etc., temperature measurement with high accuracy is not easy. In order to reduce the influence of the disturbance due to the surrounding environment, a protective case that houses the temperature measurement unit is used, but it is difficult to completely eliminate the influence of the disturbance by itself, and the influence of the disturbance is calibrated. It is necessary to provide a calibration means.
このため、例えば、特許文献１に開示された車両の床下機器温度検知装置では、軌道走行車両の周囲環境による外乱の影響を効果的に抑制して、軌道走行車両の外部の地上側から床下機器の発熱部位の温度を適切に検知することを意図し、放射温度計を備えて非接触で温度を検知する温度検知部の側方に校正用発熱体を設置し、全車両の放射熱の測定後に、この校正用発熱体からの放射熱を放射温度計に導いて温度計測を行ない、その結果に基づいて、先に計測された全車両の放射熱の測定結果を校正する技術を提案している。 For this reason, for example, in the vehicle underfloor equipment temperature detection device disclosed in Patent Document 1, the influence of disturbance due to the surrounding environment of the track traveling vehicle is effectively suppressed, and the floor underfloor device from the ground side outside the track traveling vehicle is effectively suppressed. In order to properly detect the temperature of the heat generation part of the vehicle, a calibration heating element is installed on the side of the temperature detection part equipped with a radiation thermometer to detect the temperature in a non-contact manner, and the radiation heat of all vehicles is measured. Later, the radiant heat from this calibration heating element was guided to a radiant thermometer to measure the temperature, and based on the result, we proposed a technique to calibrate the radiant heat measurement results of all the vehicles previously measured. Yes.
しかしながら、上記背景技術で述べた従来の車両の床下機器温度検知装置にあっては、例えば、前述の特許文献１に開示された車両の床下機器温度検知装置の場合、車両全体の放射熱の温度測定結果を、校正用発熱体からの放射熱の温度測定結果で後から校正するものであるから、測定精度は高いといえる。しかしながら、床下機器からの放射熱を入射させる筒体の構造に由来して、特別の周囲環境、特に風雨および降雪のような気象状況、並びに列車風等による外乱が、この温度検知部に達する以前の経路で物理的に十分に除去されていなければ、放射温度計が外乱の影響をもろに受けてしまうので、後から校正手段によって車両全体の放射熱の温度測定結果に対する校正を行ったとしても、やはり外乱の影響を回避する効果は充分に得られず、正確な測定値が得られないという問題点があった。
本発明は、上述した事情に鑑みてなされたもので、既定走行路を走行する車両の周囲環境、特に降雪や降雨、日射温度による外乱の影響を効果的に抑制して、車両の側方外部の地上側から床下機器の発熱部位の温度を適切に検知し得る車両の床下機器温度検知装置を提供することを目的としている。
However, in the conventional vehicle underfloor equipment temperature detection device described in the background art, for example, in the case of the vehicle underfloor equipment temperature detection device disclosed in Patent Document 1, the temperature of the radiant heat of the entire vehicle is described. Since the measurement result is calibrated later with the temperature measurement result of the radiant heat from the calibration heating element, it can be said that the measurement accuracy is high. However, due to the structure of the cylinder that receives the radiant heat from the underfloor equipment, special ambient environments, especially weather conditions such as wind and rain, and snow, and disturbances due to train winds, etc., before reaching this temperature detector If the radiant thermometer is not sufficiently removed by this route, the radiant thermometer will be affected by disturbances. Even if the radiated heat temperature measurement result of the entire vehicle is calibrated later by the calibration means, However, there is a problem that the effect of avoiding the influence of the disturbance cannot be obtained sufficiently and an accurate measurement value cannot be obtained.
The present invention has been made in view of the above-described circumstances, and effectively suppresses the influence of disturbance due to the ambient environment of the vehicle traveling on the predetermined traveling path, particularly snow, rain, and solar radiation temperature, and thus the lateral outside of the vehicle. It is an object of the present invention to provide a vehicle underfloor equipment temperature detection device that can appropriately detect the temperature of a heat generation part of the underfloor equipment from the ground side.
本発明の請求項１の目的は、車両が走行する既定走行路の側方から所定の間隔を隔てて配置され、前記車両の床下に配設された機器の放射熱を検知する放射温度計を備えた車両の床下機器温度検知装置において、太陽光の日射温度による前記筒体内の温度上昇を効果的に抑制することができ、また、特に、雪や雨等が筒体の内部にまで浸入することを防止し、放射温度計の測定値に誤差が生じることを防止することができ、さらにまた、筒体の先端部が積雪によって塞がれることによって放射温度計の測定値に誤差が生じたり、測定不能に陥ることを防止することができる車両の床下機器温度検知装置を提供することにある。
本発明の請求項２の目的は、特に、雪や雨等が筒体の内部にまで浸入することを防止し、放射温度計の測定値に誤差が生じることを防止することができる車両の床下機器温度検知装置を提供することにある。
本発明の請求項３の目的は、特に、筒体の先端部が積雪によって塞がれることによって放射温度計の測定値に誤差が生じたり、測定不能に陥ることを防止することができる車両の床下機器温度検知装置を提供することにある。
本発明の請求項４の目的は、特に、筒体内に浸入した雪の融水や雨水が溜り、放射温度計にまで達することを抑止し、放射温度計の測定値に誤差が生じることを防止することができる車両の床下機器温度検知装置を提供することにある。
The purpose of claim 1 of the present invention is arranged from the side of the default road on which the vehicles travels at a predetermined interval, a radiation thermometer for detecting the radiant heat under the floor to disposed the equipment of the vehicle In the vehicle underfloor equipment temperature detection device equipped with the above, it is possible to effectively suppress the temperature rise in the cylinder due to the solar radiation temperature , and in particular, snow, rain, etc. penetrates into the cylinder And the measurement value of the radiation thermometer can be prevented from producing an error, and furthermore, the measurement value of the radiation thermometer is caused by the tip of the cylinder being blocked by snow. An object of the present invention is to provide a vehicle underfloor equipment temperature detection device that can prevent the measurement from becoming impossible.
The purpose of the second aspect of the present invention, in particular, a vehicle that can be such as snow or rain is prevented from entering into the inside of the cylindrical body, preventing and Turkey error occurs in the measured value of the radiation thermometer It is to provide an underfloor equipment temperature detection device.
An object of claim 3 of the present invention is to prevent a vehicle from being able to prevent an error in measurement values of the radiation thermometer or a failure of measurement due to the tip of the cylinder being blocked by snow. It is to provide an underfloor equipment temperature detection device.
The object of claim 4 of the present invention is to prevent, in particular, the melted and rainwater of snow that has entered the cylinder from reaching the radiation thermometer and preventing errors in the measurement values of the radiation thermometer. An object of the present invention is to provide an underfloor equipment temperature detection device for a vehicle.
本発明の請求項５の目的は、特に、筒体の先端の放射熱入射口が積雪によって塞がれることによって放射温度計の測定値に誤差が生じたり、測定不能に陥ることを簡単且つ安価な構成で効果的に抑制することができる車両の床下機器温度検知装置を提供することにある。
本発明の請求項６の目的は、特に、前記雨水や雪融け水が前記筒体先端側の内部にまで浸入することを防止し、放射温度計の測定値に誤差が生じることを防止することができる車両の床下機器温度検知装置を提供することにある。
本発明の請求項７の目的は、特に、車両が走行する既定走行路の側方から所定の間隔を隔てて配置され、前記車両の床下に配設された機器の放射熱を検知する放射温度計を備えた車両の床下機器温度検知装置において、太陽光の日射温度による前記筒体内の温度上昇を効果的に抑制することができる車両の床下機器温度検知装置を提供することにある。
The object of claim 5 of the present invention is simple and inexpensive, in particular, that an error occurs in the measurement value of the radiation thermometer or the measurement becomes impossible due to the radiant heat entrance at the tip of the cylinder being blocked by snow. An object of the present invention is to provide a vehicle underfloor equipment temperature detection device that can be effectively suppressed with a simple configuration.
The object of claim 6 of the present invention is to prevent, in particular, the rain water and snow melting water from entering into the inside of the cylindrical tip, and to prevent an error in the measured value of the radiation thermometer. An object of the present invention is to provide an underfloor equipment temperature detection device for a vehicle.
The object of the seventh aspect of the present invention is particularly a radiation temperature for detecting radiant heat of a device disposed at a predetermined interval from a side of a predetermined traveling path on which the vehicle travels and disposed under the floor of the vehicle. It is an object of the present invention to provide a vehicle underfloor equipment temperature detection device that can effectively suppress an increase in temperature in the cylinder due to the solar radiation temperature.
請求項１に記載した本発明に係る車両の床下機器温度検知装置は、上述した目的を達成するために、車両が走行する既定走行路から側方に所定の間隔を隔てて配置され、前記車両の床下に配設された機器の放射熱を検知する放射温度計を備えた車両の床下機器温度検知装置において、
前記放射温度計を収納する本体部と、
前記本体部の開口部に取り付けられ、前記放射温度計に前記機器から放射され且つ伝播される放射熱を入射させるための、内側の筒と外側の筒との間隙に空気層を挟んだ二重構造の筒から成る筒体と、
を備え、
前記筒体の下半部には、先端側から基部側の途中に至るまで、鉛直面に対し傾きをなす切り欠き部を形成し、
前記外側の筒の先端上部には、上方に突出する雪よけ部材を取り付けてなり、斜め上方から降下する雪および／または雨滴を前記筒体内に浸入しにくくするように構成したことを特徴としている。
請求項２に記載した本発明に係る車両の床下機器温度検知装置は、請求項１に記載の走行車両の床下機器温度検知装置であって、前記筒体の下半部の先端側から基端側の途中に至るまでに形成された切り欠き部は、鉛直面に対し、４５°前後の傾きをもって、形成されてなることを特徴としている。
請求項３に記載した本発明に係る車両の床下機器温度検知装置は、請求項１または請求項２に記載の走行車両の床下機器温度検知装置であって、前記雪よけ部材は、円筒状を呈する前記筒体の上半部先端に跨るように固着されていることを特徴としている。
In order to achieve the above-described object, the vehicle underfloor equipment temperature detection device according to the present invention described in claim 1 is disposed at a predetermined interval laterally from a predetermined travel path on which the vehicle travels. In the vehicle underfloor equipment temperature detection device equipped with a radiation thermometer that detects the radiant heat of the equipment disposed under the floor of the vehicle,
A main body for storing the radiation thermometer;
A double unit that is attached to the opening of the main body and has an air layer sandwiched between the inner cylinder and the outer cylinder to allow the radiation thermometer to receive the radiant heat radiated and propagated from the device. A cylinder composed of a cylinder of structure;
Equipped with a,
In the lower half of the cylindrical body, a notch portion that is inclined with respect to the vertical plane is formed from the tip side to the middle of the base side,
A snow preventing member protruding upward is attached to the top end of the outer cylinder, and configured to make it difficult for snow and / or raindrops falling obliquely from above to enter the cylinder. It is said.
The underfloor equipment temperature detection device for a vehicle according to the present invention described in claim 2 is the underfloor equipment temperature detection device for a traveling vehicle according to claim 1, wherein the base end of the tubular body from the distal end side of the lower half portion thereof. The notch formed in the middle of the side is formed with an inclination of about 45 ° with respect to the vertical plane.
Floor equipment temperature detecting apparatus for a vehicle according to the present invention described in claim 3 is the equipment floor temperature sensing device of the traveling vehicle according to claim 1 or claim 2, wherein the snow visor member includes a cylindrical It is characterized by being fixed so that it may straddle the front- end | tip of the upper half part of the said cylindrical body which exhibits .
請求項４に記載した本発明に係る車両の床下機器温度検知装置は、請求項１〜請求項３のいずれか１項に記載の走行車両の床下機器温度検知装置であって、前記二重構造の筒からなる前記筒体の下部面に、液体を地上に落下させるための複数個の貫通孔を形成したことを特徴としている。
請求項５に記載した本発明に係る車両の床下機器温度検知装置は、請求項１または請求項３に記載の前記雪除け部材は、帽子の鍔状を呈し、前記外側の筒の先端上部において鉛直方向に向けてリブ状の支持部によって前記外側の筒に固着され設置されることを特徴としている。
請求項６に記載した本発明に係る車両の床下機器温度検知装置は、請求項４に記載の走行車両の床下機器温度検知装置であって、前記二重構造の筒の少なくとも下部内面に、傾斜を持たせて、前記筒体部の内面に吹き込んだ水分を前記筒の先端側に向かって流して地上に落下させるように構成してなることを特徴としている。
請求項７に記載した本発明に係る車両の床下機器温度検知装置は、請求項１に記載の走行車両の床下機器温度検知装置であって、前記本体部の底部を除く上面、正面、背面、右側面および左側面には、前記本体部と所定の空隙を存して熱遮蔽板が取り付けられていることを特徴としている。
The vehicle underfloor equipment temperature detection device according to the present invention described in claim 4 is the underfloor equipment temperature detection device for a traveling vehicle according to any one of claims 1 to 3 , wherein the double structure A plurality of through-holes for dropping the liquid onto the ground are formed in the lower surface of the cylindrical body made of the above-mentioned cylinder .
According to a fifth aspect of the present invention, there is provided the vehicle underfloor equipment temperature detection device according to the first or third aspect of the present invention, wherein the snow protection member has a hat-like shape, and is formed at the upper end of the outer cylinder. It is characterized in that it is fixedly installed on the outer cylinder by a rib-shaped support part in the vertical direction.
The underfloor equipment temperature detecting device for a vehicle according to the present invention described in claim 6 is the underfloor equipment temperature detecting device for a traveling vehicle according to claim 4 , wherein at least a lower inner surface of the double-structured cylinder is inclined. And the water blown into the inner surface of the cylindrical body portion flows toward the distal end side of the cylinder and is dropped onto the ground.
The vehicle underfloor equipment temperature detection device according to the present invention described in claim 7 is the underfloor equipment temperature detection device of the traveling vehicle according to claim 1, wherein the top surface, the front surface, the back surface, and the bottom surface of the main body portion are excluded. A heat shielding plate is attached to the right side surface and the left side surface with a predetermined gap from the main body portion.
本発明の床下機器温度検知装置によれば、既定走行路を走行する車両の周囲環境、特に、降雪、降雨、外気温度等による外乱の影響を効果的に抑制して、床下機器の発熱部位の温度を適切に検知し得る車両の床下機器温度検知装置を提供することができる。
すなわち本発明の請求項１の床下機器の温度検知装置によれば、車両が走行する既定走行路から側方に所定の間隔を隔てて配置され、前記車両の床下に配設された機器の放射熱を検知する放射温度計を備えた車両の床下機器温度検知装置において、
前記放射温度計を収納する本体部と、
前記本体部の開口部に取り付けられ、前記放射温度計に前記機器から放射され且つ伝播される放射熱を入射させるための、内側の筒と外側の筒との間隙に空気層を挟んだ二重構造の筒から成る筒体と、
を備え、
前記筒体の下半部には、先端側から基部側の途中に至るまで、鉛直面に対し傾きをなす切り欠き部を形成し、
前記外側の筒の先端上部には、上方に突出する雪よけ部材を取り付けてなり、斜め上方から降下する雪および／または雨滴を前記筒体内に浸入しにくくするように構成したので、太陽光等による周囲温度の大きな変化に対し、二重構造の筒体内の前記空気層によって外気温を遮断し、前記筒体内の温度上昇を効果的に抑制乃至は軽減することができ、また、雪や雨等を、この切り欠き部において直接地上に落下させることができるので、雪や雨水が筒の内部にまで浸入することを防止し、放射温度計の測定値に誤差が生じることを防止することができ、さらには、降雪や降雨等の外乱伝播によって放射温度計の測定値に誤差が生じることを防止することができる。
According to the floor under a device temperature detection device of the present invention, the surrounding environment of the vehicle traveling the predetermined travel path, in particular, snow, rain, and effectively suppress the influence of disturbance due to the outside air temperature, the heat generation portion of the floor equipment It is possible to provide a vehicle underfloor equipment temperature detection device that can appropriately detect the temperature of the vehicle.
That is, according to the temperature detection apparatus for an underfloor device of claim 1 of the present invention, the radiation of the device disposed under the floor of the vehicle is arranged at a predetermined interval laterally from a predetermined travel path on which the vehicle travels. In a vehicle underfloor equipment temperature detection device equipped with a radiation thermometer that detects heat,
A main body for storing the radiation thermometer;
A double unit that is attached to the opening of the main body and has an air layer sandwiched between the inner cylinder and the outer cylinder to allow the radiation thermometer to receive the radiant heat radiated and propagated from the device. A cylinder composed of a cylinder of structure;
Equipped with a,
In the lower half of the cylindrical body, a notch portion that is inclined with respect to the vertical plane is formed from the tip side to the middle of the base side,
Since the upper part of the outer cylinder is provided with a snow-preventing member that protrudes upward so as to make it difficult for snow and / or raindrops falling obliquely from above to enter the cylinder. to a large change in the ambient temperature due to light or the like, to cut off the outside air temperature by the air layer of the tubular body having a double structure, effectively suppressed or the temperature rise of the cylindrical body can be reduced, also, the snow Since rain and rain can be dropped directly on the ground at this notch, it prevents snow and rain water from entering the inside of the cylinder and prevents errors in the measured values of the radiation thermometer. Furthermore, it is possible to prevent an error in the measurement value of the radiation thermometer due to propagation of disturbance such as snowfall or rain.
また、本発明の請求項２の車両の床下機器温度検知装置によれば、前記筒体の下半部の先端側から基端側の途中に至るまでに形成された切り欠き部は、鉛直面に対し、４５°前後の傾きをもって、形成されてなることによって、雪や雨等を、この切り欠き部において直接地上に落下させることができるので、雪や雨水が筒の内部にまで浸入することを防止し、放射温度計の測定値に誤差が生じることを防止することができる。
また、本発明の請求項３の車両の床下機器温度検知装置によれば、前記雪よけ部材は、円筒状を呈する前記筒体の上半部先端に跨るように固着されていることができるので、降雪や降雨等の外乱伝播によって放射温度計の測定値に誤差が生じることを防止することができる。
また、本発明の請求項４の車両の床下機器温度検知装置によれば、前記二重構造の筒の下部面に、雨水等を地上に落下させるための複数個の貫通孔を形成することにより、筒内に浸入した雨水や雪の融水が放射温度計にまで達することを防止し、放射温度計の測定値に誤差が生じることを防止することができる。
According to the vehicle underfloor equipment temperature detection device of claim 2 of the present invention, the notch formed from the front end side to the middle of the base end side of the lower half of the cylindrical body has a vertical surface. On the other hand, since it is formed with an inclination of about 45 ° , snow and rain can be dropped directly on the ground at this notch, so that snow and rainwater can penetrate into the inside of the cylinder. It is possible to prevent an error from occurring in the measurement value of the radiation thermometer.
According to the vehicle underfloor equipment temperature detection device of claim 3 of the present invention, the snow protection member can be fixed so as to straddle the tip of the upper half of the cylindrical body. Therefore, it is possible to prevent an error from occurring in the measurement value of the radiation thermometer due to the propagation of disturbance such as snowfall or rainfall .
According to the vehicle underfloor equipment temperature detection device of claim 4 of the present invention, by forming a plurality of through holes for dropping rainwater or the like on the lower surface of the double-structured cylinder. Further, it is possible to prevent rainwater or snow melt that has entered the cylinder from reaching the radiation thermometer, and to prevent an error in the measurement value of the radiation thermometer.
また、本発明の請求項５の車両の床下機器温度検知装置によれば、前記雪除け部材は、帽子の鍔状を呈し、前記外側の筒の先端上部において鉛直方向または鉛直方向に対し所定の角度範囲内で前傾方向または後傾方向に向けて設置されるので、筒内に浸入した雨水や融雪水が放射温度計にまで達することを帽子することができる。
さらに、本発明の請求項６の車両の床下機器温度検知装置によれば、前記二重構造の筒の少なくとも下部面に雨水等が流れることができる傾斜を持たせて、前記雨水等を前記筒の先端から地上に落下させるように構成したので、雪融け水や雨等が筒の内部にまで浸入することを防止し、放射温度計の測定値に誤差が生じることを防止することができる。
さらに、本発明の請求項７の車両の床下機器温度検知装置によれば、前記本体部の底部を除く上面、正面、背面、右側面および左側面には、前記本体部と所定の空隙を存して熱遮蔽板が取り付けられていることによって、太陽光等による周囲温度の大きな変化に対し、二重構造の筒体内の前記空気層によって外気温を遮断し、前記筒体内の温度上昇を効果的に抑制乃至は軽減することができる。
According to the vehicle underfloor equipment temperature detection device of claim 5 of the present invention, the snow protection member has a hat-like shape, and has a predetermined vertical or vertical direction at the top end of the outer cylinder. Since it is installed toward the forward tilt direction or the backward tilt direction within the angle range, it is possible to cap rainwater and snowmelt water that has entered the cylinder reaching the radiation thermometer.
Furthermore, according to the vehicle underfloor equipment temperature detection device of claim 6 of the present invention, at least a lower surface of the double-structured tube is provided with an inclination that allows rainwater to flow, so that the rainwater or the like is supplied to the tube. Since it is configured to drop to the ground from the tip of the snowmelt, it is possible to prevent snow melting water, rain, and the like from entering the inside of the tube, and to prevent an error in the measurement value of the radiation thermometer.
Furthermore, according to the vehicle underfloor equipment temperature detection apparatus of claim 7 of the present invention, the main body portion and the predetermined gap are present on the upper surface, front surface, rear surface, right side surface, and left side surface excluding the bottom portion of the main body portion. With the heat shield plate attached, the outside air temperature is blocked by the air layer in the double-layered cylinder against the large change in ambient temperature due to sunlight, etc., and the temperature rise in the cylinder is effective Can be suppressed or reduced.
以下、本発明の実施の形態に基づき、図面を参照して本発明の既定走行路としての軌道（以下、「線路」と称することがある）を走行する車両の床下機器温度検知装置を詳細に説明する。
なお、本発明に係る車両とは、軌道上を走行する鉄道車両のほか、新交通システム、ガイドウェイ型自動車、モノレール等、既定の走行路を走行する車両を包含するが、ここでは鉄道車両を代表例として説明することとする。
図１は、本発明の実施の形態に係る鉄道車両の軸箱温度検知に適用した軌道走行車両の床下機器温度検知装置が配置された全体のシステム構成を模式図である。図２は、図１の主要部の列車通過中におけるＡ−Ｂ線に沿う要部の断面を列車前方側から見た矢視断面図である。
図１および図２に示す床下機器温度検知装置は、温度検知部１１（１１Ａ，１１Ｂ）、校正用発熱体１２（１２Ａ，１２Ｂ）、発熱コントローラ１３（１３Ａ，１３Ｂ）、到来車輪検知部１４（１４Ａ，１４Ｂ）、計測車輪検知部１５（１５Ａ，１５Ｂ）、通過車輪検知部１６（１６Ａ，１６Ｂ）、接続箱１７および制御処理装置１８を具備している。但し、校正用発熱体１２（１２Ａ，１２Ｂ）および発熱コントローラ１３（１３Ａ，１３Ｂ）は、本実施形態に係る車両の床下機器温度検知装置の必須の構成要素ではなく、省略することも可能である。
Hereinafter, based on an embodiment of the present invention, an underfloor equipment temperature detection device for a vehicle traveling on a track (hereinafter sometimes referred to as a “track”) as a predetermined travel path of the present invention will be described in detail with reference to the drawings. explain.
The vehicle according to the present invention includes not only a railway vehicle traveling on a track but also a vehicle traveling on a predetermined traveling path such as a new transportation system, a guideway type automobile, a monorail, etc. It will be described as a representative example.
FIG. 1 is a schematic diagram of an overall system configuration in which an underfloor equipment temperature detection device for a track traveling vehicle applied to axle box temperature detection of a railway vehicle according to an embodiment of the present invention is arranged. FIG. 2 is a cross-sectional view taken along the line A-B of the main part of FIG. 1 as viewed from the train front side along the line AB.
The underfloor equipment temperature detection device shown in FIGS. 1 and 2 includes a temperature detection unit 11 (11A, 11B), a calibration heating element 12 (12A, 12B), a heat generation controller 13 (13A, 13B), and an incoming wheel detection unit 14 ( 14A, 14B), a measurement wheel detector 15 (15A, 15B), a passing wheel detector 16 (16A, 16B), a connection box 17 and a control processing device 18. However, the calibration heating element 12 (12A, 12B) and the heat generation controller 13 (13A, 13B) are not essential components of the vehicle underfloor equipment temperature detection device according to this embodiment, and may be omitted. .
鉄道車両の場合、走行軌道は線路ＲＴであり、図示のように、ほぼ平行に敷設された２本のレールＲＴＡおよびＲＴＢで構成されている。鉄道車両は、図示矢印ＴＲ方向に走行する。温度検知部１１は、線路ＲＴの両側方に２つの温度検知部１１Ａおよび１１Ｂとして、それぞれレールＲＴＡおよびＲＴＢに対応する側に、設けられており、各々放射熱を検出する放射温度計、並びにその放射温度計の放射熱の入射部の近傍に配置されて放射熱の伝播路を偏向するための可動ミラー（省略可能）を有し、入射される放射熱を高精度に検出する。この種の温度検知部１１における放射温度計としては、熱源から発熱に伴って発生する赤外線を高精度に検出する赤外線放射温度計を用いることが望ましい。
校正用発熱体１２および発熱コントローラ１３（１３Ａ，１３Ｂ）は、本発明の必須の校正要素ではないが、温度検知部１１Ａおよび１１Ｂの各々の近傍にそれぞれ対応して２つの発熱体１２Ａおよび１２Ｂとして設けられる。発熱コントローラ１３は、発熱体１２Ａおよび１２Ｂにそれぞれ接続されるコントローラ１３Ａおよび１３Ｂとして設けられ、各々対応する発熱体１２Ａおよび１２Ｂを校正のための所定の温度で発熱させる。
In the case of a railway vehicle, the traveling track is a track RT, and is composed of two rails RTA and RTB laid substantially in parallel as shown in the figure. The railway vehicle travels in the direction indicated by the arrow TR. The temperature detector 11 is provided as two temperature detectors 11A and 11B on both sides of the line RT on the side corresponding to the rails RTA and RTB, respectively, and a radiation thermometer for detecting radiant heat, and its A movable mirror (which can be omitted) is arranged near the incident portion of the radiation heat of the radiation thermometer to deflect the propagation path of the radiation heat, and the incident radiation heat is detected with high accuracy. As the radiation thermometer in this type of temperature detector 11, it is desirable to use an infrared radiation thermometer that detects infrared rays generated from the heat source as the heat is generated with high accuracy.
Although the calibration heating element 12 and the heat generation controller 13 (13A, 13B) are not essential calibration elements of the present invention, the two heating elements 12A and 12B correspond to the vicinity of the temperature detection units 11A and 11B, respectively. Provided. The heat generating controller 13 is provided as controllers 13A and 13B connected to the heat generating elements 12A and 12B, respectively, and causes the corresponding heat generating elements 12A and 12B to generate heat at a predetermined temperature for calibration.
到来車輪検知部１４は、レールＲＴＡおよびＲＴＢにおいて車両の車輪Ｗのそれぞれ車輪ＷＡおよびＷＢを検知する到来車輪検知部１４Ａおよび１４Ｂとして設けられ、温度検知部１１の位置よりも所定距離だけ前方、すなわち車両の進入到来側に配置されて、温度検知部１１の位置に到達する以前に車輪Ｗの到来を検知する。計測車輪検知部１５は、レールＲＴＡおよびＲＴＢにおいて車両の車輪Ｗのそれぞれ車輪ＷＡおよびＷＢを検知する計測車輪検知部１５Ａおよび１５Ｂとして設けられ、温度検知部１１の位置にほぼ対応して配置されて、車輪Ｗの温度検知部１１の位置への到達を検知する。通過車輪検知部１６は、レールＲＴＡおよびＲＴＢにおいて車両の車輪Ｗのそれぞれ車輪ＷＡおよびＷＢを検知する通過車輪検知部１６Ａおよび１６Ｂとして設けられ、温度検知部１１の位置よりも所定距離だけ後方、すなわち車両の通過退出側に配置されて、車輪Ｗが温度検知部１１の位置を完全に通過したことを検知する。これら車輪検知部１４、１５および１６は、いずれも電磁式近接スイッチのような非接触近接スイッチを用いて構成され、車輪Ｗが近づくとそれを検知して検知信号を発生する。 The arrival wheel detection unit 14 is provided as arrival wheel detection units 14A and 14B that detect the wheels WA and WB of the vehicle wheels W in the rails RTA and RTB, respectively, and is a predetermined distance ahead of the position of the temperature detection unit 11, that is, It is arrange | positioned at the approach arrival side of a vehicle, and the arrival of the wheel W is detected before reaching | attaining the position of the temperature detection part 11. FIG. The measurement wheel detection unit 15 is provided as measurement wheel detection units 15A and 15B that detect the wheels WA and WB of the vehicle wheels W on the rails RTA and RTB, respectively, and is arranged substantially corresponding to the position of the temperature detection unit 11. The arrival of the wheel W at the position of the temperature detection unit 11 is detected. The passing wheel detector 16 is provided as passing wheel detectors 16A and 16B that detect the wheels WA and WB of the wheels W of the vehicle in the rails RTA and RTB, respectively, and is behind a predetermined distance from the position of the temperature detector 11, that is, It is arrange | positioned at the passing / exiting side of a vehicle, and detects that the wheel W has completely passed the position of the temperature detector 11. These wheel detectors 14, 15 and 16 are all configured using a non-contact proximity switch such as an electromagnetic proximity switch. When the wheel W approaches, the wheel detection unit 14 detects that and generates a detection signal.
接続箱１７は、それぞれケーブル等を適宜介して、温度検知部１１、発熱コントローラ１３、到来車輪検知部１４、計測車輪検知部１５および通過車輪検知部１６、すなわち温度検知部１１Ａおよび１１Ｂ、発熱コントローラ１３Ａおよび１３Ｂ、到来車輪検知部１４Ａおよび１４Ｂ、計測車輪検知部１５Ａおよび１５Ｂ、並びに通過車輪検知部１６Ａおよび１６Ｂに接続され、これらを、やはりケーブル等を適宜介して制御処理装置１８に接続する。もちろん、これらの接続は、ケーブル接続に限らず、無線送受信機を用いた無線通信路による接続としてもよい。制御処理装置１８は、到来車輪検知部１４、計測車輪検知部１５および通過車輪検知部１６による車輪の検知状況に応じて、温度検知部１１における温度検知処理および内蔵のミラーによる放射熱の伝播路の偏向制御、並びに発熱コントローラ１３を介しての校正用発熱体１２の発熱温度制御を行なう。 The connection box 17 is connected to the temperature detection unit 11, the heat generation controller 13, the incoming wheel detection unit 14, the measurement wheel detection unit 15 and the passing wheel detection unit 16, that is, the temperature detection units 11A and 11B, the heat generation controller, through cables or the like as appropriate. 13A and 13B, incoming wheel detection units 14A and 14B, measurement wheel detection units 15A and 15B, and passing wheel detection units 16A and 16B are connected to the control processing device 18 through cables and the like as appropriate. Of course, these connections are not limited to cable connections, and may be connections via wireless communication paths using wireless transceivers. The control processing device 18 is configured to perform temperature detection processing in the temperature detection unit 11 and a propagation path of radiant heat by a built-in mirror according to the detection state of the wheels by the incoming wheel detection unit 14, the measurement wheel detection unit 15, and the passing wheel detection unit 16. Deflection control and the heat generation temperature control of the calibration heating element 12 through the heat generation controller 13 are performed.
図３は、図１の温度検知部１１の側面から見た詳細構成を示す透視図である。また、図４は、図１の温度検知部１１の側面と後面とを重点的に示した外観図である。
図３および図４に示す温度検知部１１は、本体部としてのケース１１１と、ケース１１１の内部に収納されて放射熱の温度を計測する放射温度計１１２と、放射熱の伝播路（入射路）を形成する筒体２１と、を備えて構成される。
筒体２１は、外側の筒（以下、「外筒」という）２１１と内側の筒（以下、「内筒」という）２１４とからなり、外筒２１１には、本発明の特徴的な構成要素である雪除け部材２１２が付設され、さらに外筒２１１と内筒２１４の下半部は、先端側から基部側の途中に至るまで約４５°前後の傾きをもって切り欠き部２１３が形成されている。雪除け部材２１２は、外筒２１１の最前端に帽子の鍔のように立てられて設置されており、風雪（風、雨、雪等）を受けても倒れることがないようにリブ状の支持部２１２１によって外筒２１１に固着され、支持されている。
筒体２１および雪除け部材２１２並びに支持部２１２１を構成する素材の材質は、風雪に耐えられる丈夫なものでありさえすれば任意の適当な材質が可能であり、例えば、金属、プラスチック等を使用することができるが、可能な限り雪が付着し難く、耐腐食性のある材質が好ましい。
FIG. 3 is a perspective view showing a detailed configuration viewed from the side of the temperature detection unit 11 of FIG. FIG. 4 is an external view that focuses on the side surface and the rear surface of the temperature detector 11 shown in FIG.
3 and 4 includes a case 111 as a main body, a radiation thermometer 112 that is housed in the case 111 and measures the temperature of the radiant heat, and a propagation path (incident path) of the radiant heat. ) To form a cylindrical body 21.
The cylinder 21 includes an outer cylinder (hereinafter referred to as “outer cylinder”) 211 and an inner cylinder (hereinafter referred to as “inner cylinder”) 214. The outer cylinder 211 includes characteristic components of the present invention. And the lower half of the outer cylinder 211 and the inner cylinder 214 are formed with a notch 213 with an inclination of about 45 ° from the tip side to the middle of the base side. . The snow removal member 212 is installed at the foremost end of the outer cylinder 211 like a hat collar, and is supported in a rib shape so that it will not fall over even if it receives wind and snow (wind, rain, snow, etc.) The portion 2121 is fixed to and supported by the outer cylinder 211.
The material of the material constituting the cylindrical body 21, the snow protection member 212 and the support portion 2121 can be any suitable material as long as it is strong enough to withstand wind and snow. For example, metal, plastic, etc. are used. However, it is preferable to use a material that is resistant to snow as much as possible and has corrosion resistance.
筒体２１の外筒２１１および内筒２１４の底面には、雨水等の液体を地上に落下させるための複数の小孔が穿設されている。
また、筒体２１は、外筒２１１と内筒２１４とを備え、前記外筒２１１が前記内筒２１４を内包すると共に、内筒２１４の外周面と外筒２１１の内周面とは、直接的に接触することなく、その基端は、熱遮蔽板１１３およびケース１１１の正面側に穿設された開口部１１１Ａを貫通し、ケース１１１に取付けられている。内筒２１４と外筒２１１とは、所定の空気間隙を存して互いに保持された二重筒構造として形成されている。
雪除け部材２１２の形状は、積雪が内筒２１４の内部に浸入することを阻止できる形状でありさえすれば、任意の適当な形状が可能であり、例えば、半円形、楕円形、あるいは角形の形状であってもよい。
以下、本実施の形態に係る車両の床下機器温度検知装置の機能について説明する。
本発明に係る車両の床下機器温度検知装置では、前述のとおり、温度検知部１１の放射熱の入射路を形成する筒体２１の構成を、空気間隙を存して互いに離間された外筒２１１と内筒２１４とを有する構成としたので、前記外筒２１１が接する外気温度および照射される日射等に起因する温度上昇の影響が前記内筒２１４に直接的に伝播されることが抑止され、これにより、内筒２１４内部の温度上昇が抑制される。これにより、放射温度計１１２が、特に夏の日差しの強い日射等の外乱の影響を受けて温度上昇することを抑止することができ、延いては、車両の床下機器の発熱部位の温度を的確に検出することができるようになる。
A plurality of small holes are provided in the bottom surfaces of the outer cylinder 211 and the inner cylinder 214 of the cylindrical body 21 for allowing liquid such as rainwater to fall on the ground.
The cylindrical body 21 includes an outer cylinder 211 and an inner cylinder 214. The outer cylinder 211 contains the inner cylinder 214, and the outer peripheral surface of the inner cylinder 214 and the inner peripheral surface of the outer cylinder 211 are directly The base end passes through the heat shielding plate 113 and the opening 111 </ b> A drilled in the front side of the case 111 and is attached to the case 111. The inner cylinder 214 and the outer cylinder 211 are formed as a double cylinder structure that is held together with a predetermined air gap.
The snow removal member 212 may have any suitable shape as long as it is a shape that can prevent snow from entering the inner cylinder 214, for example, a semicircular shape, an oval shape, or a square shape. It may be a shape.
Hereinafter, the function of the vehicle underfloor equipment temperature detection device according to the present embodiment will be described.
In the vehicle underfloor equipment temperature detection device according to the present invention, as described above, the configuration of the cylindrical body 21 forming the incident path for the radiant heat of the temperature detection unit 11 is changed to the outer cylinder 211 spaced from each other with an air gap. And the inner cylinder 214, the temperature rise caused by the outside air temperature in contact with the outer cylinder 211 and the irradiated solar radiation is prevented from being directly transmitted to the inner cylinder 214, Thereby, the temperature rise inside the inner cylinder 214 is suppressed. As a result, the radiation thermometer 112 can be prevented from rising due to the influence of disturbances such as strong sunlight in the summer, and thus the temperature of the heat generation part of the vehicle under-floor equipment can be accurately determined. Will be able to be detected.
また、温度検知部１１の外筒２１１は、前述のとおり、本発明に特徴的な構成要素である雪除け部材２１２を備えており、これにより、外筒２１１の上部に積った雪が筒体２１の先端開口（放射熱の入射口）を一部塞いでしまい、ひいては、放射温度計１１２の測定値に影響を及ぼしたり、場合によって測定不能となるのを防止することができる。なお、雪除け部材２１２の外筒２１１に対する傾斜角度を、ここでは鉛直として示しているが、鉛直方向に対し、適宜の角度範囲で、前傾させ、あるいは後傾させてもよい。
また、温度検知部１１の外筒２１１と内筒２１４には、前述のとおり、本発明に特徴的な構成要素である切り欠き部２１３が形成されており、これにより、筒体２１の斜め上部から降る雪や雨等は、内筒２１４の内部にまで浸入することなく、即ち、前記の雪や雨等は、この切り欠き部２１３を通過して直接地上に落下するので、内筒２１４の内部にまで浸入することが防止され、ひいては、放射温度計１１２が、筒体２１の斜め上方から降る雪や雨等の外乱の影響を受けて測定不能に陥ったり、温度の測定値に誤差を生じることを防止することができる。なお、この切り欠き部２１３の外筒２１１に対する傾斜角度（即ち切り欠き角度）は、筒体２１の横方向の長さとも関係するが、斜め上方から降る雪や雨が容易に筒体２１の内部に入り込まない適当な角度（例えば４５°前後）とすることが望ましい。
Further, as described above, the outer cylinder 211 of the temperature detection unit 11 includes the snow removing member 212 which is a characteristic component of the present invention, so that the snow accumulated on the upper part of the outer cylinder 211 is a cylindrical body. Thus, it is possible to prevent the tip opening 21 (radiation heat incident port) from being partially blocked, thereby affecting the measurement value of the radiation thermometer 112 and possibly making measurement impossible. In addition, although the inclination angle with respect to the outer cylinder 211 of the snow removal member 212 is shown as vertical here, it may be inclined forward or backward within an appropriate angle range with respect to the vertical direction.
In addition, the outer cylinder 211 and the inner cylinder 214 of the temperature detection unit 11 are formed with the notch 213 which is a characteristic component of the present invention as described above. Snow, rain, etc. falling from the inside cylinder 214 does not enter the inside of the inner cylinder 214. That is, the snow, rain, etc., passes through the notch 213 and falls directly to the ground. Intrusion to the inside is prevented, and as a result, the radiation thermometer 112 becomes unmeasurable due to the influence of a disturbance such as snow or rain falling obliquely from the upper side of the cylinder 21, or an error is caused in the temperature measurement value. It can be prevented from occurring. Note that the inclination angle of the notch 213 with respect to the outer cylinder 211 (that is, the notch angle) is related to the lateral length of the cylinder 21, but snow and rain falling obliquely from above can easily be applied to the cylinder 21. It is desirable to set the angle so as not to enter the interior (for example, around 45 °).
さらに、温度検知部１１の筒体２１は、前述のとおり、外筒２１１および内筒２１４下底部において雨水等を地上に落下させるための複数の小径の貫通孔が穿設されているので、内筒２１４の底面部に浸入した雨水や、雪の融水は、放射温度計１１２まで達することなく、地上に落下するので、放射温度計１１２が、外筒２１１の内部にまで浸入した雨や雪等の外乱の影響を受けて測定値に誤差を生じることを防止することができる。
図５は、図１の温度検知部１１の正面構造を模式的に示す正面図である。
同図に示すように、温度検知部１１を収納する本体部としてのケース１１１の側面には、放熱手段として、熱交換機３１１と換気のためのフード３１２とを備えることが可能であり、ケース１１１の内部に籠った熱を、フード３１２と熱交換機３１１とを介して外部に逃がすことができる。また、ケース１１１の底部を除く、５面、即ち、上面、正面、背面、右側面および左側面には、ケース１１１と所定の空隙を存して、熱遮蔽版１１３が取り付けねじまたは溶接等の手段によって取り付けられている。これら複数の熱遮蔽板１１３により、ケース１１１が日光等の直射を受けて温度上昇することが抑止され、ひいては床下機器から入射させる放射熱の計測に極力影響を受けないようにしている。
Furthermore, as described above, the cylindrical body 21 of the temperature detection unit 11 has a plurality of small-diameter through holes for dropping rainwater and the like at the bottoms of the outer cylinder 211 and the inner cylinder 214. Rainwater or snow melt that has entered the bottom surface of the cylinder 214 falls to the ground without reaching the radiation thermometer 112, so that the rain or snow that has entered the inside of the outer cylinder 211 by the radiation thermometer 112. It is possible to prevent an error from occurring in the measurement value due to the influence of disturbance such as the above.
FIG. 5 is a front view schematically showing a front structure of the temperature detection unit 11 of FIG.
As shown in the figure, a heat exchanger 311 and a hood 312 for ventilation can be provided as heat radiating means on the side surface of the case 111 as a main body for housing the temperature detection unit 11. It is possible to release the heat generated in the inside to the outside through the hood 312 and the heat exchanger 311. Further, the heat shielding plate 113 is attached to the five surfaces except for the bottom of the case 111, that is, the upper surface, the front surface, the back surface, the right side surface, and the left side surface, with a predetermined gap from the case 111, and is attached by screws or welding Attached by means. The plurality of heat shielding plates 113 prevent the case 111 from being exposed to direct sunlight such as sunlight, and thus is not affected as much as possible by the measurement of radiant heat incident from the underfloor equipment.
以下、本発明に係る車両の床下機器温度検知装置を実施した結果を、一実施形態として説明する。
この実施形態においては、図１〜５に示す車両の床下機器温度検知装置の標準的な構成について、筒体２１における太陽光の照射による温度変化を測定した。
図６は、図３に示す本実施形態に係る車両の床下機器温度検知装置の温度検知部１１の筒体を二重筒構造とした場合における温度の測定位置を示す説明図であり、図７は、比較のために示す筒体を一重筒構造とした場合における温度の測定位置を示す説明図である。
図７で示した一重筒構造の筒対２１の温度の測定位置には、当該位置を示す符号としてアルファベットの小文字を付し、図６に示す二重筒構造の筒体２１の温度の測定位置の内、前記図７に示す測定位置に対応する位置については、図６に示す符号と同じ符号（即ちアルファベットの小文字）を付し、前記図７に示す測定位置に対応してしいない位置については新たにアルファベットの大文字を付して示している。
Hereinafter, the result of having implemented the underfloor equipment temperature detection apparatus of the vehicle which concerns on this invention is demonstrated as one Embodiment.
In this embodiment, the temperature change by the sunlight irradiation in the cylinder 21 was measured about the standard structure of the vehicle underfloor equipment temperature detection apparatus shown in FIGS.
FIG. 6 is an explanatory diagram showing a temperature measurement position when the cylinder of the temperature detection unit 11 of the vehicle underfloor equipment temperature detection device according to the present embodiment shown in FIG. 3 has a double cylinder structure. These are explanatory drawings which show the measurement position of the temperature when the cylinder shown for comparison has a single cylinder structure.
The temperature measurement position of the cylinder pair 21 having the single cylinder structure shown in FIG. 7 is given an alphabetic lowercase letter as a symbol indicating the position, and the temperature measurement position of the cylinder 21 having the double cylinder structure shown in FIG. 7, the positions corresponding to the measurement positions shown in FIG. 7 are given the same reference numerals as those shown in FIG. 6 (that is, lower case letters), and the positions do not correspond to the measurement positions shown in FIG. 7. Indicates a new alphabetic capital letter.
図６に示すように、筒体２１の温度の測定位置として、筒体２１（二重筒）において、外筒２１１の上部外面である外面ａと、二重筒の内筒２１４の上部内面である内周面Ｂと、内筒２１４の中央付近である内部空間Ｃと、外筒２１１の下部外面である外面ｅと、二重筒の内筒２１４の下部内面である内周面Ｄと、を選んだ。
これに対し、比較のために図７で示した、一重筒構造の温度の測定位置は、筒体２１（一重筒）において、外筒２１１の上部外面である外面ａと、外筒２１１の上部内面である内周面ｂと、外筒２１１の内部中央付近である内部空間ｃと、外筒２１１の下部外面である外面ｅと、外筒２１１の下部内面である内周面ｄと、を選んだ。
図８は、上記の温度測定点における測定温度を経過時間の時系列で示したグラフ図である。
同図において、グラフ表示に使用した線種は前記の各温度測定点毎に異なるものを使用すると共に、前記各線種のサンプル表示に対して前記温度測定点の符号を付記することにより、前記の各温度測定点に対応するグラフを示している。
As shown in FIG. 6, as the measurement position of the temperature of the cylindrical body 21, in the cylindrical body 21 (double cylinder), the outer surface a that is the upper outer surface of the outer cylinder 211 and the upper inner surface of the inner cylinder 214 of the double cylinder. A certain inner peripheral surface B, an inner space C that is near the center of the inner cylinder 214, an outer surface e that is a lower outer surface of the outer cylinder 211, an inner peripheral surface D that is a lower inner surface of the inner cylinder 214 of the double cylinder, I chose.
On the other hand, the temperature measurement position of the single cylinder structure shown in FIG. 7 for comparison is the outer surface a which is the upper outer surface of the outer cylinder 211 and the upper part of the outer cylinder 211 in the cylinder 21 (single cylinder). An inner circumferential surface b that is an inner surface, an inner space c that is near the inner center of the outer cylinder 211, an outer surface e that is a lower outer surface of the outer cylinder 211, and an inner circumferential surface d that is a lower inner surface of the outer cylinder 211. I chose.
FIG. 8 is a graph showing the measured temperatures at the temperature measurement points in time series.
In the same figure, the line types used for the graph display are different for each temperature measurement point, and the temperature measurement points are added to the sample display of each line type by adding the symbol of the temperature measurement point. A graph corresponding to each temperature measurement point is shown.
図８に示すグラフ図からは、
（１） 一重筒の内部空間ｃと二重筒の内部空間Ｃとの温度差は、最大で４℃であり、内部空間の温度のバラツキは、二重筒（図６に示す実施形態）の方が少なく、安定して計測を行うことができる。
（２） 一重筒の内周面ｂと二重筒の内周面Ｂとの温度差は、最大で１２．８℃であり、二重筒の方が、内周面の温度のバラツキは少ない。
（３） 一重筒の場合、外面ａと内周面ｂとの温度差が１℃であるのに対し、二重筒の場合、外面ａと内周面Ｂとの温度差は最大で１２．７℃であり、二重筒の方が断熱効果がはるかに大きい。
（４） 一重筒の上部内周面ｂと下部内周面ｄとの温度差は、１４．３℃であるのに対し、二重筒の上部内周面Ｂと下部内周面Ｄとの温度差は、３．２℃であり、二重筒の方が温度差が小さく筒内部の温度が安定している。
以上のことから、結論として、二重筒の方が筒内温度の上昇が小さく且つ温度のバラツキが少ないので、外乱に影響されにくく、安定して計測を行えることが理解される。
From the graph shown in FIG.
(1) The maximum temperature difference between the internal space c of the single cylinder and the internal space C of the double cylinder is 4 ° C., and the variation in the temperature of the internal space is that of the double cylinder (the embodiment shown in FIG. 6). There are few, and it can measure stably.
(2) The maximum temperature difference between the inner peripheral surface b of the single cylinder and the inner peripheral surface B of the double cylinder is 12.8 ° C., and the temperature variation of the inner peripheral surface is less in the double cylinder. .
(3) In the case of a single cylinder, the temperature difference between the outer surface a and the inner peripheral surface b is 1 ° C., whereas in the case of a double cylinder, the maximum temperature difference between the outer surface a and the inner peripheral surface B is 12. The temperature is 7 ° C., and the double tube has a much larger heat insulation effect.
(4) The temperature difference between the upper inner peripheral surface b and the lower inner peripheral surface d of the single cylinder is 14.3 ° C., whereas the upper inner peripheral surface B and the lower inner peripheral surface D of the double cylinder The temperature difference is 3.2 ° C., and the double cylinder has a smaller temperature difference and the temperature inside the cylinder is more stable.
From the above, as a conclusion, it is understood that the double cylinder has a smaller increase in the in-cylinder temperature and less variation in temperature, so that it is less affected by the disturbance and can be stably measured.
なお、上述の実施の形態では、筒体２１をケース１１１に対し、水平方向に伸びる直円筒体のものを例示したが、先端に行くにつれて拡がる、メガホン型あるいはラッパ型のような筒体とすることができる。このように構成した場合、底部に***を設けなくても、筒内部に一旦浸入した雨水等が、傾斜面に沿って落下させることができる。また、筒体２１の形状としては、内筒に限らず、例えば、四角筒、五角筒等の角筒であってもよい。
また、上述の実施の形態においては、軌道車両の床下機器温度検知装置を示したが、軌道車両に限らず、新交通システム、ガイドウェイ型自動車、モノレールなどのように、既定の走行路上を走行（移動）する車両にはすべて本発明が適用可能である。
In the above-described embodiment, the cylindrical body 21 is illustrated as a straight cylindrical body that extends in the horizontal direction with respect to the case 111. However, a cylindrical body such as a megaphone type or a trumpet type that expands toward the tip. be able to. When configured in this manner, rainwater or the like that has once entered the cylinder can be dropped along the inclined surface without providing a small hole in the bottom. Further, the shape of the cylindrical body 21 is not limited to the inner cylinder, and may be a square cylinder such as a square cylinder or a pentagonal cylinder.
In the above-described embodiment, an underfloor equipment temperature detection device for a track vehicle has been described. However, the present invention is not limited to a track vehicle, and travels on a predetermined travel path such as a new traffic system, a guideway type automobile, and a monorail. The present invention is applicable to all (moving) vehicles.
１１（１１Ａ，１１Ｂ） 温度検知部
２１ 筒体
１１１ ケース（本体部）
１１１Ａ 開口部
１１２ 放射温度計
１１３ 熱遮蔽版
２１１ 外筒
２１２ 雪除け部材
２１３ 切り欠き部
２１４ 内筒
３１１ 熱交換機
３１２ フード
ＲＴＡ、ＲＴＢ レール
ＲＴ 線路
11 (11A, 11B) Temperature detection part 21 Cylindrical body 111 Case (main part)
111A Opening 112 Radiation thermometer 113 Heat shielding plate 211 Outer cylinder 212 Snow removal member 213 Notch 214 Inner cylinder 311 Heat exchanger 312 Hood RTA, RTB rail RT line
Claims (7)
前記放射温度計を収納する本体部と、
前記本体部の開口部に取り付けられ、前記放射温度計に前記機器から放射され且つ伝播される放射熱を入射させるための、内側の筒と外側の筒との間隙に空気層を挟んだ二重構造の筒から成る筒体と、
を備え、
前記筒体の下半部には、先端側から基部側の途中に至るまで、鉛直面に対し傾きをなす切り欠き部を形成し、
前記外側の筒の先端上部には、上方に突出する雪よけ部材を取り付けてなり、斜め上方から降下する雪および／または雨滴を前記筒体内に浸入しにくくするように構成したことを特徴とする車両の床下機器温度検知装置。 In a vehicle underfloor equipment temperature detection device provided with a radiation thermometer that is disposed at a predetermined interval laterally from a predetermined travel path on which the vehicle travels and that detects radiant heat of the equipment disposed under the vehicle floor. ,
A main body for storing the radiation thermometer;
A double unit that is attached to the opening of the main body and has an air layer sandwiched between the inner cylinder and the outer cylinder to allow the radiation thermometer to receive the radiant heat radiated and propagated from the device. A cylinder composed of a cylinder of structure;
Equipped with a,
In the lower half of the cylindrical body, a notch portion that is inclined with respect to the vertical plane is formed from the tip side to the middle of the base side,
A snow preventing member protruding upward is attached to the top end of the outer cylinder, and configured to make it difficult for snow and / or raindrops falling obliquely from above to enter the cylinder. Vehicle under-floor equipment temperature detection device.
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