JP4491784B2 - Tire and wheel assembly and wheel - Google Patents

Tire and wheel assembly and wheel Download PDF

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JP4491784B2
JP4491784B2 JP2004368825A JP2004368825A JP4491784B2 JP 4491784 B2 JP4491784 B2 JP 4491784B2 JP 2004368825 A JP2004368825 A JP 2004368825A JP 2004368825 A JP2004368825 A JP 2004368825A JP 4491784 B2 JP4491784 B2 JP 4491784B2
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tire
temperature
wheel
thermocouple
metal
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JP2006175914A (en
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啓太 良知
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Yokohama Rubber Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/041—Means for supplying power to the signal- transmitting means on the wheel

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Description

本発明は、燃料電池車や電気自動車等の地球環境に優しい道路走行車両の開発が進む中、空気入りタイヤ・ホイール組立体に発生する熱を電力エネルギーに変換して車両において再利用し有効活用できるようにするタイヤ・ホイール組立体及びホイールに関するものである。   As the development of road-friendly vehicles such as fuel cell vehicles and electric vehicles progresses, the present invention converts the heat generated in the pneumatic tire / wheel assembly into electric energy and reuses it in the vehicle. The present invention relates to a tire / wheel assembly and a wheel that can be made.

従来、車両のタイヤに発生する熱や振動或いはタイヤ内に発生する応力のエネルギーを電気エネルギーに変換する装置が考案されている。このような装置の一例として、特開平６−１２９９５２号公報（特許文献１）に開示されるタイヤ試験装置や、特開２００４−２０３２０７号公報（特許文献２）に開示される自動車用制振ホイール、特開平９−２３７３９８号公報（特許文献３）に開示されるトランスポンダ装着タイヤが知られている。   2. Description of the Related Art Conventionally, an apparatus has been devised that converts heat, vibration, or stress energy generated in a tire of a vehicle into electrical energy. As an example of such a device, a tire testing device disclosed in Japanese Patent Laid-Open No. 6-129951 (Patent Document 1) and an automobile vibration damping wheel disclosed in Japanese Patent Laid-Open No. 2004-203207 (Patent Document 2). A transponder-equipped tire disclosed in Japanese Patent Laid-Open No. 9-237398 (Patent Document 3) is known.

特開平６−１２９９５２号公報に開示されるタイヤ試験装置は、接地部上を被試験タイヤが転動可能に構成されたタイヤ試験装置において、接地部に被試験タイヤのトレッド面に生じる摩擦熱を熱起電力に変換する熱電対を設けたものである。この装置によれば、被試験タイヤが転動しながら接地するときにトレッド面に発生した摩擦熱が接地部に配置した熱電対に伝達されるので、トレッド部の摩擦熱の大きさに応じた熱起電力を発生させることができる。この熱起電力の分布によってトレッド部に対する摩擦エネルギーの分布状態を知ることができる。   In the tire testing apparatus disclosed in Japanese Patent Laid-Open No. 6-129952, in a tire testing apparatus configured such that the tire under test can roll on the ground contact portion, friction heat generated on the tread surface of the tire under test is generated at the ground contact portion. A thermocouple for converting to thermoelectromotive force is provided. According to this apparatus, since the frictional heat generated on the tread surface when the tire under test is grounded while rolling is transmitted to the thermocouple disposed on the grounding portion, the frictional heat corresponding to the size of the frictional heat of the tread portion is determined. A thermoelectromotive force can be generated. The distribution state of the friction energy with respect to the tread portion can be known from the distribution of the thermoelectromotive force.

特開２００４−２０３２０７号公報に開示される自動車用制振ホイールは、タイヤが装着されたリムと、回転軸上に設けられたハブとの間を複数のスポークで接続し、各スポークには、スポークの振動による歪みエネルギーを電気エネルギーに変換する圧電素子を設けることにより、スポークの振動が制振され、ホイールに起因する騒音及びホイールを伝搬する振動を低減するようにしたものである。   Japanese Unexamined Patent Application Publication No. 2004-203207 discloses a vibration damping wheel for an automobile, in which a rim on which a tire is mounted and a hub provided on a rotating shaft are connected by a plurality of spokes. By providing a piezoelectric element that converts strain energy due to vibration of the spokes into electrical energy, the vibration of the spokes is suppressed, and the noise caused by the wheel and the vibration propagating through the wheel are reduced.

特開平９−２３７３９８号公報に開示されるトランスポンダ装着タイヤは、タイヤ内に圧電素子を設け、この圧電素子によって、タイヤに生じる応力或いは圧力のエネルギーを電気エネルギーに変換し、この電気エネルギーによってタイヤに装着されたトランスポンダを駆動するものである。
特開平６−１２９９５２号公報 特開２００４−２０３２０７号公報 特開平９−２３７３９８号公報 A tire equipped with a transponder disclosed in Japanese Patent Laid-Open No. 9-237398 is provided with a piezoelectric element in the tire, and the piezoelectric element converts stress or pressure energy generated in the tire into electric energy, and the electric energy is applied to the tire. It drives the mounted transponder.
JP-A-6-129952 JP 2004-203207 A JP-A-9-237398

車両走行時にはブレーキの摩擦熱や車軸の軸受け機構部における摩擦熱がホイールに伝達してタイヤ・ホイール組立体に高い熱が発生し、この熱により、タイヤを形成するゴムの劣化が生じたり、タイヤ内空気圧が上昇して空気漏れが生じたりする。   When the vehicle is running, the frictional heat of the brake and the frictional heat in the bearing mechanism of the axle are transmitted to the wheel to generate high heat in the tire / wheel assembly. This heat causes deterioration of the rubber forming the tire, The internal air pressure increases and air leakage occurs.

本発明は上記の問題点に鑑みてなされたものであり、その目的とするところは、車両走行時にホイールに発生する熱を電気エネルギーに変換し、熱を低減すると共に生成した電気エネルギーを利用できるタイヤ・ホイール組立体及びホイールを提供することにある。   The present invention has been made in view of the above-described problems, and an object of the present invention is to convert heat generated in the wheel during traveling of the vehicle into electric energy, thereby reducing the heat and using the generated electric energy. It is to provide a tire / wheel assembly and a wheel.

本発明は前記目的を達成するために、ホイールと該ホイールに装着されたタイヤ本体とからなる道路走行車両用のタイヤ・ホイール組立体において、車両走行時に、低温側の温度を検知するように配置された一端部の温度と高温側の温度を検知するように配置された他端部の温度との温度差に基づいてゼーベック効果により電力を発生する熱電対を有する電力生成装置を有するとともに、前記熱電対における高温側の温度を検知する端部に設けられた蓄熱部材或いは前記熱電対における低温側の温度を検知する端部と前記ホイールとの間に設けられた断熱部材の少なくとも何れか一方を備えているタイヤ・ホイール組立体を提案する。
In order to achieve the above object, the present invention provides a tire / wheel assembly for a road vehicle comprising a wheel and a tire body mounted on the wheel so as to detect the temperature on the low temperature side during vehicle travel. and has a power generating device having a thermocouple for generating electric power by the Seebeck effect based on the temperature difference between the temperature of the deployed second end portion to sense the temperature of the temperature and the high temperature side by one end portion, said At least one of a heat storage member provided at an end portion for detecting the temperature on the high temperature side of the thermocouple or a heat insulating member provided between the end portion for detecting the temperature on the low temperature side of the thermocouple and the wheel. Proposed tire and wheel assembly.

本発明のタイヤ・ホイール組立体によれば、車両走行時においてタイヤ・ホイール組立体の低温部には熱電対の一端部が配置され、高温部には熱電対の他端部が配置されているので、タイヤ・ホイール組立体に発生した高温部の熱は熱電対に吸収され、高温部と低温部の温度差に対応して熱電対に電流が発生する。従って、熱電対に吸収された熱は電気エネルギーに変換され、これによって熱電対から出力される電力を利用可能となる。   According to the tire / wheel assembly of the present invention, one end of the thermocouple is disposed in the low temperature portion of the tire / wheel assembly during traveling of the vehicle, and the other end of the thermocouple is disposed in the high temperature portion. Therefore, the heat of the high temperature part generated in the tire / wheel assembly is absorbed by the thermocouple, and a current is generated in the thermocouple corresponding to the temperature difference between the high temperature part and the low temperature part. Therefore, the heat absorbed by the thermocouple is converted into electrical energy, which makes it possible to use the power output from the thermocouple.

また、本発明は、上記の電力生成装置を備えたホイールを提案する。   Moreover, this invention proposes the wheel provided with said electric power generation apparatus.

本発明のタイヤ・ホイール組立体及びホイールによれば、タイヤ・ホイール組立体に発生した熱が電気エネルギーに変換されるため、該電気エネルギーに変換された分の熱がタイヤ・ホイール組立体から奪われるので、タイヤ・ホイール組立体の温度が低下され、タイヤ本体を構成するゴムの劣化や空気漏れを低減することができると共に生成された電気エネルギーを利用することができる。   According to the tire / wheel assembly and the wheel of the present invention, since the heat generated in the tire / wheel assembly is converted into electric energy, the heat converted into the electric energy is deprived from the tire / wheel assembly. As a result, the temperature of the tire / wheel assembly is lowered, the deterioration of the rubber constituting the tire body and air leakage can be reduced, and the generated electrical energy can be utilized.

以下、図面を参照して本発明の一実施形態を説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

図１乃至図７は本発明に係る一参考例を示すもので、図１は参考例におけるタイヤ・ホイール組立体を示す外観図、図２は参考例におけるタイヤ・ホイール組立体の外観図の要部概略断面図、図３は参考例におけるセンサユニットの電気系回路の一構成例を示すブロック図、図４は参考例における電力生成装置の構成を示す断面図、図５及び図６は参考例における電力生成装置の取り付け例を示す図、図７は参考例における熱電対の構成を説明する図である。
1 to 7 shows one reference example of the present invention, FIG. 1 is an external view showing a tire-wheel assembly in reference example 2 is a partial external view of a tire-wheel assembly in reference example part schematic cross-sectional view, FIG. 3 is a block diagram showing a configuration example of electric circuit of the sensor unit in the reference example, FIG. 4 is a sectional view showing a configuration of a power generating apparatus in reference example 5 and 6 the reference example The figure which shows the example of attachment of the electric power generation apparatus in FIG. 7, FIG. 7 is a figure explaining the structure of the thermocouple in a reference example .

図において、１はタイヤ・ホイール組立体であり、タイヤ本体２とホイール３から構成されている。また、ホイール３にはリム３１に装着された熱電対を備えた電力生成装置100とセンサユニット200が設けられている。   In the figure, reference numeral 1 denotes a tire / wheel assembly, which includes a tire body 2 and a wheel 3. Further, the wheel 3 is provided with a power generation device 100 and a sensor unit 200 each including a thermocouple attached to the rim 31.

センサユニット200は、タイヤ２の空気室２１内部においてリム３１の所定位置に接着剤201によって固定されており、このセンサユニット200内に設けられている後述する圧力検出素子及び温度検出素子によってタイヤ空気室２１内の圧力と温度を検出し、該検出結果をディジタル値に変換する。また、センサユニット200はこれらのディジタル値を含むディジタル情報を生成して送信する。このディジタル情報には、上記検出結果のディジタル値の他にセンサユニット200に固有の識別情報が含まれる。   The sensor unit 200 is fixed to a predetermined position of the rim 31 inside the air chamber 21 of the tire 2 by an adhesive 201, and the tire air is detected by a pressure detection element and a temperature detection element described later provided in the sensor unit 200. The pressure and temperature in the chamber 21 are detected, and the detection result is converted into a digital value. The sensor unit 200 generates and transmits digital information including these digital values. This digital information includes identification information unique to the sensor unit 200 in addition to the digital value of the detection result.

センサユニット200の電気系回路の一具体例としては、図３に示す回路が挙げられる。すなわち、図３に示す一具体例では、センサユニット200は、圧力検出素子211及び温度検出素子212を有するセンサモジュール210と、制御ＩＣ230、設定用コイルアンテナ240、送信ＩＣ250、蓄電池260、送信用アンテナ270、低電圧整流回路280から構成されている。   A specific example of the electric circuit of the sensor unit 200 is the circuit shown in FIG. That is, in one specific example shown in FIG. 3, the sensor unit 200 includes a sensor module 210 having a pressure detection element 211 and a temperature detection element 212, a control IC 230, a setting coil antenna 240, a transmission IC 250, a storage battery 260, and a transmission antenna. 270 and a low voltage rectifier circuit 280.

圧力検出素子211はタイヤ空気室２１内の空気圧を検出して、検出した空気圧に対応するアナログ電気信号を出力する。   The pressure detection element 211 detects the air pressure in the tire air chamber 21 and outputs an analog electric signal corresponding to the detected air pressure.

温度検出素子212は、タイヤ空気室２１内の温度を検出して、検出した温度に対応するアナログ電気信号を出力する。   The temperature detection element 212 detects the temperature in the tire air chamber 21 and outputs an analog electrical signal corresponding to the detected temperature.

制御ＩＣ230は、周知のＣＰＵ231と、メモリ回路232、アナログ／ディジタル（以下、単にＡ／Ｄと称する）変換回路233,234とを備えている。   The control IC 230 includes a known CPU 231, a memory circuit 232, and analog / digital (hereinafter simply referred to as A / D) conversion circuits 233 and 234.

ＣＰＵ231は、メモリ回路232に格納されているプログラムに基づいて動作し、設定用コイルアンテナ240を介して外部から受信した所定周波数の電磁波（例えば１２５ＫＨｚ）による設定信号に基づいて、識別情報及び送信情報フォーマット等の情報をメモリ回路232に記憶すると共に、圧力検出素子211と温度検出素子212のそれぞれから出力される検出結果のアナログ電気信号をＡ／Ｄ変換回路233,234を介してディジタル信号に変換し、検出結果をディジタル値として取り込み、これらの検出結果と識別情報とを含む信号を送信回路251を介して送信用アンテナ270から所定周波数（例えば３１５ＭＨｚ）の電磁波によって送信する。この送信処理は所定時間おき、例えば１０分おきに行われる。このように間隔をあけて送信を行うことにより蓄電池260の消耗を抑えることができる。   The CPU 231 operates based on a program stored in the memory circuit 232, and based on a setting signal based on an electromagnetic wave (for example, 125 KHz) of a predetermined frequency received from the outside via the setting coil antenna 240, identification information and transmission information Information such as the format is stored in the memory circuit 232, and analog electric signals of detection results output from the pressure detection element 211 and the temperature detection element 212 are converted into digital signals via the A / D conversion circuits 233 and 234, The detection result is taken in as a digital value, and a signal including the detection result and identification information is transmitted from the transmitting antenna 270 via the transmission circuit 251 by an electromagnetic wave having a predetermined frequency (for example, 315 MHz). This transmission process is performed every predetermined time, for example, every 10 minutes. By performing transmission at intervals as described above, the consumption of the storage battery 260 can be suppressed.

メモリ回路232は周知のＲＡＭ、ＲＯＭ、ＥＥＰＲＯＭ等によって構成され、ＥＥＰＲＯＭにはセンサユニット200の識別情報が予め格納されている。また、センサユニット200の各構成部には蓄電池260から電力が供給される。   The memory circuit 232 includes a known RAM, ROM, EEPROM, or the like, and the identification information of the sensor unit 200 is stored in advance in the EEPROM. In addition, power is supplied from the storage battery 260 to each component of the sensor unit 200.

蓄電池260には定電圧整流回路280を介して電力生成装置100が接続され、電力生成装置100によって生成された電力（電気エネルギー）により蓄電池260が充電されるようになっている。   The power generation device 100 is connected to the storage battery 260 via the constant voltage rectifier circuit 280, and the storage battery 260 is charged by the power (electric energy) generated by the power generation device 100.

定電圧整流回路280は、電力生成装置100によって発生された電力の電圧を蓄電池260に適した電圧以内の電圧にして出力すると共に、蓄電池260から電力生成装置100への電流の逆流を防止する。   The constant voltage rectifier circuit 280 outputs the voltage of the power generated by the power generation device 100 within a voltage suitable for the storage battery 260, and prevents a backflow of current from the storage battery 260 to the power generation device 100.

電力生成装置100は、図４乃至図７に示すように、リム３１の表裏面に跨って配置された熱電対110によって構成されている。   As shown in FIGS. 4 to 7, the power generation device 100 is configured by a thermocouple 110 disposed across the front and back surfaces of the rim 31.

熱電対100は、＋脚を構成する第１金属111と−脚を構成する第２金属112とを有し、第１金属111及び第２金属112の両端部は所定の面積を有する長方形の平板状をなし、第１金属111及び第２金属112の一端部は所定面積で面接触させた状態で溶接されている。尚、第１金属111と第２金属112は面全体を溶接しても良いし、面全体に亘って多数の点をスポット溶接しても良い。   The thermocouple 100 includes a first metal 111 constituting a + leg and a second metal 112 constituting a-leg, and both ends of the first metal 111 and the second metal 112 are rectangular flat plates having a predetermined area. The first metal 111 and the one end of the second metal 112 are welded in a state of surface contact with a predetermined area. The first metal 111 and the second metal 112 may be welded over the entire surface, or a number of points may be spot welded over the entire surface.

また、熱電対100の第１金属111及び第２金属112の他端の一部111b,112bを除く全体が絶縁体113で被覆され、第１金属111及び第２金属112の一端部111a,112aの側がリム３１の裏面に絶縁体113を介して面接触するように固定されている。また、第１金属111及び第２金属112の他端部111b,112bの側はリム３１の表面に絶縁体113を介して面接触するように固定されている。   In addition, the whole of the thermocouple 100 except for the first metal 111 and the other end portions 111b and 112b of the second metal 112 are covered with an insulator 113, and one end portions 111a and 112a of the first metal 111 and the second metal 112 are covered. This side is fixed to the rear surface of the rim 31 so as to be in surface contact via an insulator 113. The other end portions 111b and 112b of the first metal 111 and the second metal 112 are fixed to the surface of the rim 31 so as to be in surface contact with each other through an insulator 113.

第１金属111及び第２金属112の一端部側の平板と他端部側の平板は、リム３１に形成された所定径の貫通孔32A,32Bを通る第１金属111の中間部111c及び第２金属112の中間部112cによって接続され、貫通孔32A,32Bには貫通孔32A,32Bを介しての空気漏れがないように密封部材３３が嵌入されている。尚、第１金属111及び第２金属112の中間部111c,112cとして、第１金属111及び第２金属112に代えて電気抵抗値の低い他の導電体金属を用いても良い。   The flat plate on the one end side and the flat plate on the other end side of the first metal 111 and the second metal 112 are the intermediate portion 111c of the first metal 111 passing through the through holes 32A and 32B having a predetermined diameter formed in the rim 31 and the second metal 112. A sealing member 33 is fitted in the through holes 32A and 32B so that there is no air leakage through the through holes 32A and 32B. As the intermediate portions 111c and 112c between the first metal 111 and the second metal 112, another conductor metal having a low electric resistance value may be used instead of the first metal 111 and the second metal 112.

また、第１金属111及び第２金属112の他端部111b,112bのそれぞれには電気抵抗値の低い絶縁被覆導線115が接続され、他端部111b,112bと絶縁被覆導線115との接続点は絶縁体114によって絶縁処理されている。また、これら２本の絶縁被覆導線115はセンサユニット200の定電圧整流回路280の入力側に接続されている。 上記構成により、図７に示すように、リム３１の裏面側に固定された熱電対110の一端部121は車両走行中に外気によって冷却されるため低温部となり、リム３１の表面側すなわちタイヤ空気室内側に固定された熱電対110の他端部122はリム31の熱によって高温部となり、熱電対110には起電力が生じ、第１金属111の他端部111bと第２金属112の他端部112bとの間に電圧Ｖ１が生じ、第１金属111及び第２金属112の他端部111b,112bのそれぞれを定電圧整流回路280を介して蓄電池260を接続したときに電流が流れて蓄電池260が充電される。   Further, the other end portions 111b and 112b of the first metal 111 and the second metal 112 are connected to the insulating coated conductive wires 115 having a low electric resistance value, and the connection points between the other end portions 111b and 112b and the insulating coated conductive wires 115 are connected. Is insulated by an insulator 114. Further, these two insulated conductors 115 are connected to the input side of the constant voltage rectifier circuit 280 of the sensor unit 200. With the above configuration, as shown in FIG. 7, one end 121 of the thermocouple 110 fixed to the back side of the rim 31 is cooled by outside air while the vehicle is running, so that it becomes a low temperature portion. The other end portion 122 of the thermocouple 110 fixed to the indoor side becomes a high temperature portion due to the heat of the rim 31, and an electromotive force is generated in the thermocouple 110, and the other end portion 111 b of the first metal 111 and the second metal 112 are added. A voltage V1 is generated between the second end 112b and the first metal 111 and the second end 112b of the second metal 112. When the storage battery 260 is connected to the second end 112b via the constant voltage rectifier circuit 280, current flows. The storage battery 260 is charged.

車両走行時にはブレーキの摩擦熱や車軸の軸受け機構部における摩擦熱がホイール３に伝達してタイヤ・ホイール組立体１に高い熱が発生するため、熱電対110の両端の温度差は大きくなるので、熱電対110から電力を得ることができる。   When the vehicle is running, the frictional heat of the brake and the frictional heat in the bearing mechanism part of the axle are transmitted to the wheel 3 and high heat is generated in the tire / wheel assembly 1, so the temperature difference between both ends of the thermocouple 110 becomes large. Electric power can be obtained from the thermocouple 110.

また、熱電対110の第１金属111及び第２金属112の中間部111c,112c及び他端部111b,112bを除いて長方形の平板状に形成しているので、第１金属111及び第２金属112のそれぞれにおける電気抵抗を低減することができるため、熱電対110に生ずる電流量を増すことができる。   Further, since the first metal 111 and the second metal 112 of the thermocouple 110 are formed in a rectangular flat plate shape except for the intermediate portions 111c and 112c and the other end portions 111b and 112b, the first metal 111 and the second metal are formed. Since the electric resistance in each of 112 can be reduced, the amount of current generated in the thermocouple 110 can be increased.

さらに、熱電対110の低温部と高温部の第１金属111及び第２金属112を平板状に形成しているので、熱電対110の低温部における放熱効果と高温部における吸熱効果を高めることができ、低温部と高温部の温度差を容易に得ることができる。   Further, since the first metal 111 and the second metal 112 of the low temperature portion and the high temperature portion of the thermocouple 110 are formed in a flat plate shape, it is possible to enhance the heat dissipation effect at the low temperature portion and the heat absorption effect at the high temperature portion of the thermocouple 110. The temperature difference between the low temperature part and the high temperature part can be easily obtained.

また、タイヤ・ホイール組立体１に発生した熱が熱電対110によって電力（電気エネルギー）に変換されるため、電気エネルギーに変換された分の熱がタイヤ・ホイール組立体１から奪われるので、タイヤ・ホイール組立体１の温度が低下され、タイヤ本体２を構成するゴムの劣化や空気漏れを低減することができる。
第１金属111及び第２金属112のそれぞれを構成する＋脚金属と−脚金属としては、図８に示すように、ＪＩＳに規定される金属を用いることができるので、車両の使用環境に応じて適宜選択することが可能である。
Further, since the heat generated in the tire / wheel assembly 1 is converted into electric power (electric energy) by the thermocouple 110, the heat corresponding to the converted electric energy is taken away from the tire / wheel assembly 1, so that the tire -The temperature of the wheel assembly 1 is lowered, and deterioration of rubber constituting the tire body 2 and air leakage can be reduced .
As the + leg metal and the-leg metal constituting each of the first metal 111 and the second metal 112, a metal specified in JIS can be used as shown in FIG. Can be selected as appropriate.

尚、上記実施形態では、リム３１の表面すなわちタイヤ空気室内側に位置する熱電対110の他端部から電力を取り出すようにしたが、リム３１の裏面すなわちタイヤ空気室外に位置する熱電対110の一端部から電力を取り出すようにしても良い。   In the above embodiment, the electric power is taken out from the surface of the rim 31, that is, the other end portion of the thermocouple 110 located on the tire air chamber side, but the rear surface of the rim 31, ie, the thermocouple 110 located outside the tire air chamber, You may make it take out electric power from one end part.

次に、本発明の第１実施形態を説明する。
Next, a first embodiment of the present invention will be described.

図９は第２実施形態における電力生成装置100Aの構成を示す断面図である。図において、前述した参考例と同一構成部分は同一符号をもって表しその説明を省略する。また、第２実施形態では、前述した参考例の構成に加えて蓄熱部材131と断熱部材132を設けた。蓄熱部材131はリム３１の表面と熱電対110との間に配置され、断熱部材132はリム３１の裏面と熱電対110との間に配置されている。
FIG. 9 is a cross-sectional view showing the configuration of the power generation device 100A in the second embodiment. In the figure, the same components as those in the reference example described above are denoted by the same reference numerals, and the description thereof is omitted. In the second embodiment, the heat storage member 131 and the heat insulating member 132 are provided in addition to the configuration of the reference example described above. The heat storage member 131 is disposed between the surface of the rim 31 and the thermocouple 110, and the heat insulating member 132 is disposed between the back surface of the rim 31 and the thermocouple 110.

上記構成により、蓄熱部材131によって熱電対110の高温部の温度をさらに高めることができると共に、断熱部材132によって熱電対110の低温部へのリム３１の発熱の影響を低減して低温部の温度をさらに低下させることができ、低温部と高温部の温度差を大きくして得られる電力を増大させることができる。   With the above configuration, the temperature of the high temperature portion of the thermocouple 110 can be further increased by the heat storage member 131, and the influence of heat generated by the rim 31 on the low temperature portion of the thermocouple 110 can be reduced by the heat insulating member 132 to reduce the temperature of the low temperature portion. Can be further reduced, and the electric power obtained by increasing the temperature difference between the low temperature part and the high temperature part can be increased.

尚、蓄熱部材131或いは断熱部材132の何れか一方を設けた構成としても良い。   Note that either the heat storage member 131 or the heat insulating member 132 may be provided.

次に、本発明の第２実施形態を説明する。
Next, a second embodiment of the present invention will be described.

図１０及び図１１は第２実施形態を示す図であり、図１０は第２実施形態におけるホイール３を示す外観図、図１１は第２実施形態における電力生成装置を示す断面図である。図において、前述した第１及び第２実施形態と同一構成部分は同一符号をもって表しその説明を省略する。
FIG.10 and FIG.11 is a figure which shows 2nd Embodiment , FIG. 10 is an external view which shows the wheel 3 in 2nd Embodiment , FIG. 11 is sectional drawing which shows the electric power generation apparatus in 2nd Embodiment . In the figure, the same components as those in the first and second embodiments described above are denoted by the same reference numerals and description thereof is omitted.

電力生成装置100Bは、図に示すように、リム３１の表面に配置された熱電対110B及び蓄熱部材131と断熱部材132によって構成されている。   As shown in the figure, the power generation device 100B is composed of a thermocouple 110B, a heat storage member 131, and a heat insulation member 132 disposed on the surface of the rim 31.

本実施形態では図に示すように熱電対110Bは全体が長方形の平板状になるように形成され、リム３１の表面（タイヤ空気室内側）に面対向するように設けられている。   In the present embodiment, as shown in the drawing, the thermocouple 110B is formed so as to be a rectangular flat plate as a whole, and is provided so as to face the surface of the rim 31 (the tire air chamber side).

熱電対110Bは、＋脚を構成する第１金属111と−脚を構成する第２金属112とを有し、第１金属111及び第２金属112は所定の面積を有する長方形の平板状をなし、第１金属111及び第２金属112の一端部は所定面積で面接触させた状態で溶接されている。尚、第１金属111と第２金属112は面全体を溶接しても良いし、面全体に亘って多数の点をスポット溶接しても良い。   The thermocouple 110B has a first metal 111 constituting a + leg and a second metal 112 constituting a-leg, and the first metal 111 and the second metal 112 have a rectangular flat plate shape having a predetermined area. The one end portions of the first metal 111 and the second metal 112 are welded in a state of surface contact with a predetermined area. The first metal 111 and the second metal 112 may be welded over the entire surface, or a number of points may be spot welded over the entire surface.

また、熱電対110Bの第１金属111及び第２金属112の他端の一部111b,112bを除く全体が絶縁体113で被覆され、第１金属111及び第２金属112の他端部にはこれらの間に絶縁体113が介在され互いに面対向した状態で電気的に絶縁されている。   In addition, the whole of the thermocouple 110B except for the first metal 111 and the other end portions 111b and 112b of the second metal 112 is covered with an insulator 113, and the other end portions of the first metal 111 and the second metal 112 are covered with the other end portions. An insulator 113 is interposed between them, and they are electrically insulated while facing each other.

上記構成の熱電対110Bはリム３１の表面（タイヤ空気室内側の面）に面対向するように配置され、熱電対110Bの一端部とリム３１の表面との間に長方形をなす平板状の蓄熱部材131が介在され、熱電対110Bの他端部とリム３１の表面との間に長方形をなす平板状の断熱部材132が介在され、この状態で熱電対110Bと蓄熱部材131及び断熱部材132がリム３１に固定されている。   The thermocouple 110B having the above-described configuration is disposed so as to face the surface of the rim 31 (the surface on the tire air chamber side), and a flat plate-like heat storage that forms a rectangle between one end of the thermocouple 110B and the surface of the rim 31. A member 131 is interposed, and a flat plate-shaped heat insulating member 132 having a rectangular shape is interposed between the other end of the thermocouple 110B and the surface of the rim 31, and the thermocouple 110B, the heat storage member 131, and the heat insulating member 132 are in this state. It is fixed to the rim 31.

また、第１金属111及び第２金属112の他端部111b,112bのそれぞれには電気抵抗値の低い絶縁被覆導線115が接続され、他端部111b,112bと絶縁被覆導線115との接続点は絶縁体114によって絶縁処理されている。また、これら２本の絶縁被覆導線115はセンサユニット200の定電圧整流回路280の入力側に接続されている。   Further, the other end portions 111b and 112b of the first metal 111 and the second metal 112 are connected to the insulating coated conductive wires 115 having a low electric resistance value, and the connection points between the other end portions 111b and 112b and the insulating coated conductive wires 115 are connected. Is insulated by an insulator 114. Further, these two insulated conductors 115 are connected to the input side of the constant voltage rectifier circuit 280 of the sensor unit 200.

上記構成よりなる電力生成装置100Bによれば、蓄熱部材131を介してリム３１の表面に固定された熱電対110Bの一端部が高温部となり、断熱部材132を介してリム３１の表面に固定された熱電対110Bの他端部が低温部となる。   According to the power generation device 100B having the above configuration, one end portion of the thermocouple 110B fixed to the surface of the rim 31 via the heat storage member 131 becomes a high temperature portion, and is fixed to the surface of the rim 31 via the heat insulating member 132. The other end of the thermocouple 110B becomes a low temperature part.

熱電対110Bの一端部は、車両走行中にリム３１に発生する熱が蓄熱部材131に吸収されて高温となる。また、熱電対110Bの他端部には断熱部材132によってリム３１の熱が伝達されないのでタイヤ空気室内の温度となり一端部に比べて低温となる。   At one end of the thermocouple 110B, the heat generated in the rim 31 during traveling of the vehicle is absorbed by the heat storage member 131 and becomes high temperature. Further, since the heat of the rim 31 is not transmitted to the other end portion of the thermocouple 110B by the heat insulating member 132, the temperature is in the tire air chamber and is lower than that in the one end portion.

これにより、熱電対110Bには起電力が生じ、第１金属111の他端部111bと第２金属112の他端部112bとの間に電圧Ｖ１が生じ、第１金属111及び第２金属112の他端部111b,112bのそれぞれを定電圧整流回路280を介して蓄電池260を接続したときに電流が流れて蓄電池260が充電される。   As a result, an electromotive force is generated in the thermocouple 110B, and a voltage V1 is generated between the other end 111b of the first metal 111 and the other end 112b of the second metal 112, and the first metal 111 and the second metal 112 are generated. When the storage battery 260 is connected to each of the other end portions 111b and 112b via the constant voltage rectifier circuit 280, current flows and the storage battery 260 is charged.

また、熱電対110Bの第１金属111及び第２金属112は長方形の平板状に形成されているので、第１金属111及び第２金属112のそれぞれにおける電気抵抗を低減することができるため、熱電対110Bに生ずる電流量を増すことができる。   In addition, since the first metal 111 and the second metal 112 of the thermocouple 110B are formed in a rectangular flat plate shape, the electric resistance in each of the first metal 111 and the second metal 112 can be reduced. The amount of current generated in the pair 110B can be increased.

さらに、熱電対110Bの低温部121と高温部122の第１金属111及び第２金属112を平板状に形成しているので、熱電対110Bの低温部121における放熱効果と高温部122における吸熱効果を高めることができ、低温部121と高温部122の温度差を容易に得ることができる。   Further, since the first metal 111 and the second metal 112 of the low temperature portion 121 and the high temperature portion 122 of the thermocouple 110B are formed in a flat plate shape, the heat dissipation effect in the low temperature portion 121 and the heat absorption effect in the high temperature portion 122 of the thermocouple 110B. The temperature difference between the low temperature part 121 and the high temperature part 122 can be easily obtained.

第１金属111及び第２金属112のそれぞれを構成する＋脚金属と−脚金属としては、図８に示したように、ＪＩＳに規定される金属を用いることができるので、車両の使用環境に応じて適宜選択することが可能である。   As shown in FIG. 8, JIS stipulated metals can be used as the + leg metal and the-leg metal constituting each of the first metal 111 and the second metal 112. It is possible to select as appropriate.

尚、上記実施形態では、熱電対110Bの他端部（低温部121）から電力を取り出すようにしたが、断熱部材132と蓄熱部材131とを入れ替えて、熱電対110Bの一端部を低温部とし他端部を高温部として高温部から電力を取り出すようにしても良いし、低温部121と高温部122の中間から電力を取り出すようにしても良い。   In the above embodiment, the electric power is taken out from the other end portion (low temperature portion 121) of the thermocouple 110B. However, the heat insulating member 132 and the heat storage member 131 are replaced, and one end portion of the thermocouple 110B is set as the low temperature portion. The other end portion may be a high temperature portion, and electric power may be taken out from the high temperature portion, or electric power may be taken out from between the low temperature portion 121 and the high temperature portion 122.

また、図１２に示すように、蓄熱部材131を取り除いて、熱電対110Bの一端部（高温部122）をリム３１に直接面接触させて固定した電力生成装置100Cを構成してもよい。   Further, as shown in FIG. 12, a power generation device 100C may be configured in which the heat storage member 131 is removed and one end portion (the high temperature portion 122) of the thermocouple 110B is fixed in direct surface contact with the rim 31.

次に、本発明の第３実施形態を説明する。
Next, a third embodiment of the present invention will be described.

図１２は第３実施形態における電力生成装置のホイールへの装着例を示す図である。図において、前述した第１乃至第２実施形態と同一構成部分は同一符号をもって表しその説明を省略する。
FIG. 12 is a diagram illustrating an example of mounting the power generation device on the wheel according to the third embodiment . In the figure, the same components as those in the first and second embodiments described above are denoted by the same reference numerals, and the description thereof is omitted.

電力生成装置100Dは、図に示すように、リム３１の裏面（タイヤ空気室外の面）に配置された熱電対110B及び断熱部材132によって構成されている。   As shown in the figure, the power generation device 100D includes a thermocouple 110B and a heat insulating member 132 disposed on the back surface (the surface outside the tire air chamber) of the rim 31.

本実施形態では図に示すように熱電対110Bは全体が長方形の平板状になるように形成され、リム３１の表面（タイヤ空気室内側）に面対向するように設けられている。   In the present embodiment, as shown in the drawing, the thermocouple 110B is formed so as to be a rectangular flat plate as a whole, and is provided so as to face the surface of the rim 31 (the tire air chamber side).

熱電対110Bは、図１１に示すように、＋脚を構成する第１金属111と−脚を構成する第２金属112とを有し、第１金属111及び第２金属112は所定の面積を有する長方形の平板状をなし、第１金属111及び第２金属112の一端部は所定面積で面接触させた状態で溶接されている。尚、第１金属111と第２金属112は面全体を溶接しても良いし、面全体に亘って多数の点をスポット溶接しても良い。   As shown in FIG. 11, the thermocouple 110B has a first metal 111 constituting a + leg and a second metal 112 constituting a-leg, and the first metal 111 and the second metal 112 have a predetermined area. The first metal 111 and the second metal 112 are welded in a state of being in surface contact with each other with a predetermined area. The first metal 111 and the second metal 112 may be welded over the entire surface, or a number of points may be spot welded over the entire surface.

また、熱電対110Bの第１金属111及び第２金属112の他端の一部111b,112bを除く全体が絶縁体113で被覆され、第１金属111及び第２金属112の他端部にはこれらの間に絶縁体113が介在され互いに面対向した状態で電気的に絶縁されている。   In addition, the whole of the thermocouple 110B except for the first metal 111 and the other end portions 111b and 112b of the second metal 112 is covered with an insulator 113, and the other end portions of the first metal 111 and the second metal 112 are covered with the other end portions. An insulator 113 is interposed between them, and they are electrically insulated while facing each other.

上記構成の熱電対110Bはリム３１の裏面（タイヤ空気室外の面）に面対向するように配置され、熱電対110Bの一端部はリム３１の表面に面対向するように接触されて固定され、熱電対110Bの他端部とリム３１の表面との間に長方形をなす平板状の断熱部材122が介在され、この状態で熱電対110Bと断熱部材132がリム３１に固定されている。   The thermocouple 110B having the above configuration is disposed so as to face the back surface of the rim 31 (the surface outside the tire air chamber), and one end portion of the thermocouple 110B is contacted and fixed so as to face the surface of the rim 31. A rectangular plate-shaped heat insulating member 122 is interposed between the other end of the thermocouple 110B and the surface of the rim 31, and the thermocouple 110B and the heat insulating member 132 are fixed to the rim 31 in this state.

また、第１金属111及び第２金属112の他端部111b,112bのそれぞれには電気抵抗値の低い絶縁被覆導線115が接続され、他端部111b,112bと絶縁被覆導線115との接続点は絶縁体114によって絶縁処理されている。また、これら２本の絶縁被覆導線115はステムバルブ或いはリム３１に設けた貫通孔（図示せず）等を介してタイヤ空気室内へと配線され、タイヤ空気室内に配置されているセンサユニット200の定電圧整流回路280の入力側に接続されている。   Further, the other end portions 111b and 112b of the first metal 111 and the second metal 112 are connected to the insulating coated conductive wires 115 having a low electric resistance value, and the connection points between the other end portions 111b and 112b and the insulating coated conductive wires 115 are connected. Is insulated by an insulator 114. Further, these two insulation-coated conductive wires 115 are wired into the tire air chamber via a through hole (not shown) provided in the stem valve or rim 31, and the sensor unit 200 disposed in the tire air chamber. It is connected to the input side of the constant voltage rectifier circuit 280.

上記構成よりなる電力生成装置100Dによれば、リム３１の表面に固定された熱電対110Bの一端部が高温部となり、断熱部材132を介してリム３１の表面に固定された熱電対110Bの他端部が低温部となる。   According to the power generation device 100D having the above-described configuration, one end portion of the thermocouple 110B fixed to the surface of the rim 31 becomes a high temperature portion, and other than the thermocouple 110B fixed to the surface of the rim 31 via the heat insulating member 132. The end becomes a low temperature part.

熱電対110Bの一端部は、車両走行中にリム３１に発生する熱が伝達されて高温となる。また、熱電対110Bの他端部には断熱部材132によってリム３１の熱が伝達されないのでタイヤ空気室内の温度となり一端部に比べて低温となる。   One end portion of the thermocouple 110B is heated to a high temperature as heat generated in the rim 31 is transmitted while the vehicle is traveling. Further, since the heat of the rim 31 is not transmitted to the other end portion of the thermocouple 110B by the heat insulating member 132, the temperature is in the tire air chamber and is lower than that in the one end portion.

これにより、熱電対110Bには起電力が生じ、第１金属111の他端部111bと第２金属112の他端部112bとの間に電圧Ｖ１が生じ、第１金属111及び第２金属112の他端部111b,112bのそれぞれを定電圧整流回路280を介して蓄電池260を接続したときに電流が流れて蓄電池260が充電される。   As a result, an electromotive force is generated in the thermocouple 110B, and a voltage V1 is generated between the other end 111b of the first metal 111 and the other end 112b of the second metal 112, and the first metal 111 and the second metal 112 are generated. When the storage battery 260 is connected to each of the other end portions 111b and 112b via the constant voltage rectifier circuit 280, current flows and the storage battery 260 is charged.

また、熱電対110Bの第１金属111及び第２金属112は長方形の平板状に形成されているので、第１金属111及び第２金属112のそれぞれにおける電気抵抗を低減することができるため、熱電対110Bに生ずる電流量を増すことができる。   In addition, since the first metal 111 and the second metal 112 of the thermocouple 110B are formed in a rectangular flat plate shape, the electric resistance in each of the first metal 111 and the second metal 112 can be reduced. The amount of current generated in the pair 110B can be increased.

さらに、熱電対110Bの低温部121と高温部122の第１金属111及び第２金属112を平板状に形成しているので、熱電対110Bの低温部121における放熱効果と高温部122における吸熱効果を高めることができ、低温部121と高温部122の温度差を容易に得ることができる。   Further, since the first metal 111 and the second metal 112 of the low temperature portion 121 and the high temperature portion 122 of the thermocouple 110B are formed in a flat plate shape, the heat dissipation effect in the low temperature portion 121 and the heat absorption effect in the high temperature portion 122 of the thermocouple 110B. The temperature difference between the low temperature part 121 and the high temperature part 122 can be easily obtained.

第１金属111及び第２金属112のそれぞれを構成する＋脚金属と−脚金属としては、図８に示したように、ＪＩＳに規定される金属を用いることができるので、車両の使用環境に応じて適宜選択することが可能である。   As shown in FIG. 8, JIS stipulated metals can be used as the + leg metal and the-leg metal constituting each of the first metal 111 and the second metal 112. It is possible to select as appropriate.

尚、上記実施形態では、熱電対110Bの他端部（低温部121）から電力を取り出すようにしたが、断熱部材132の位置を変えて、熱電対110Bの一端部を低温部とし他端部を高温部として高温部から電力を取り出すようにしても良いし、低温部121と高温部122の中間から電力を取り出すようにしても良い。   In the above embodiment, the electric power is taken out from the other end portion (low temperature portion 121) of the thermocouple 110B. However, the position of the heat insulating member 132 is changed so that one end portion of the thermocouple 110B is a low temperature portion and the other end portion. The power may be taken out from the high temperature part, or the power may be taken out from the middle of the low temperature part 121 and the high temperature part 122.

また、熱電対110Bの一端部（高温部122）とリム３１との間に蓄熱部材131を介在させて固定した電力生成装置を構成してもよい。   In addition, a power generation device in which a heat storage member 131 is interposed and fixed between one end portion (high temperature portion 122) of the thermocouple 110B and the rim 31 may be configured.

以上説明したように、上記実施形態によれば、タイヤ・ホイール組立体１のホイール３に発生した熱が電力生成装置100〜100Dによって電気エネルギーに変換されるため、電気エネルギーに変換された分の熱がタイヤ・ホイール組立体１から奪われるので、タイヤ・ホイール組立体１の温度が低下され、タイヤ本体２を構成するゴムの劣化や空気漏れを低減することができると共に生成された電気エネルギーを利用することができる。   As described above, according to the above embodiment, the heat generated in the wheel 3 of the tire / wheel assembly 1 is converted into electric energy by the power generation devices 100 to 100D. Since heat is taken away from the tire / wheel assembly 1, the temperature of the tire / wheel assembly 1 is lowered, and deterioration of the rubber constituting the tire body 2 and air leakage can be reduced, and the generated electrical energy can be reduced. Can be used.

尚、上記各実施形態の構成は本発明の一具体例であって、本発明が上記の実施形態のみに限定されることはない。例えば、上記各実施形態では、電力生成装置100〜100Dによって生成された電力をセンサユニット200の蓄電池260を充電するために使用したが、これに限定されることはなく他の電子機器等に使用してもよいことは言うまでもない。また、電力生成装置100〜100Dによって生成された電力をスリップリング等を介して車両本体に設置された電子機器に供給するようにしてもよい。   The configuration of each of the above embodiments is a specific example of the present invention, and the present invention is not limited to only the above embodiment. For example, in each of the above embodiments, the power generated by the power generation devices 100 to 100D is used to charge the storage battery 260 of the sensor unit 200, but is not limited to this and is used for other electronic devices and the like. Needless to say. Moreover, you may make it supply the electric power produced | generated by the electric power generation apparatuses 100-100D to the electronic device installed in the vehicle main body via a slip ring etc.

また、上記各実施形態ではリム３１の一部の領域に電力生成装置100〜100Dを設けたが、その熱電対110〜110Bの面積はリム３１の発熱量や生成電力量に応じて適宜設定することが好ましい。   Further, in each of the above embodiments, the power generation devices 100 to 100D are provided in a partial region of the rim 31, but the areas of the thermocouples 110 to 110B are appropriately set according to the heat generation amount and the generated power amount of the rim 31. It is preferable.

本発明に係る参考例におけるタイヤ・ホイール組立体を示す外観図FIG. 1 is an external view showing a tire / wheel assembly in a reference example according to the present invention. 本発明に係る参考例におけるタイヤ・ホイール組立体の外観図の要部概略断面図The principal part schematic sectional drawing of the external view of the tire wheel assembly in the reference example which concerns on this invention 本発明に係る参考例におけるセンサユニットの電気系回路の一構成例を示すブロック図The block diagram which shows the example of 1 structure of the electric system circuit of the sensor unit in the reference example which concerns on this invention 本発明に係る参考例における電力生成装置の構成を示す断面図Sectional drawing which shows the structure of the electric power generation apparatus in the reference example which concerns on this invention 本発明に係る参考例における電力生成装置の取り付け例を示す図The figure which shows the example of attachment of the electric power generation apparatus in the reference example which concerns on this invention 本発明に係る参考例における電力生成装置の取り付け例を示す図The figure which shows the example of attachment of the electric power generation apparatus in the reference example which concerns on this invention 本発明に係る参考例における熱電対の構成を説明する図The figure explaining the structure of the thermocouple in the reference example which concerns on this invention ＪＩＳ規格の熱電対を構成する金属を示す図Diagram showing the metals that make up a JIS standard thermocouple 本発明の第１実施形態における電力生成装置の構成を示す断面図Sectional drawing which shows the structure of the electric power generation apparatus in 1st Embodiment of this invention. 本発明の第２実施形態におけるホイール３を示す外観図The external view which shows the wheel 3 in 2nd Embodiment of this invention. 本発明の第２実施形態における電力生成装置を示す断面図Sectional drawing which shows the electric power generation apparatus in 2nd Embodiment of this invention. 本発明の第２実施形態における電力生成装置の他の構成例を示す図The figure which shows the other structural example of the electric power generation apparatus in 2nd Embodiment of this invention. 本発明の第３実施形態における電力生成装置のホイールへの装着例を示す図The figure which shows the example of mounting | wearing to the wheel of the electric power generation apparatus in 3rd Embodiment of this invention.

符号の説明Explanation of symbols

１…タイヤ・ホイール組立体、２…タイヤ本体、３…ホイール、３１…リム、32A,32B…貫通孔、３３…密封部材、100,100A,100B,100C…電力生成装置、110,110A,110B…熱電対、111…第１金属（＋脚金属）、112…第２金属（−脚金属）、113,114…絶縁体、115…絶縁被覆導線、131…蓄熱部材、132…断熱部材、200…センサユニット、210…センサモジュール、211…圧力検出素子、212…温度検出素子、230…制御ＩＣ、231…ＣＰＵ、232…メモリ回路、233,234…Ａ／Ｄ変換回路、240…設定用コイルアンテナ、250…送信ＩＣ、260…蓄電池、270…送信用アンテナ、280…低電圧整流回路。   DESCRIPTION OF SYMBOLS 1 ... Tire and wheel assembly, 2 ... Tire main body, 3 ... Wheel, 31 ... Rim, 32A, 32B ... Through-hole, 33 ... Sealing member, 100, 100A, 100B, 100C ... Electric power generation apparatus, 110, 110A, 110B ... Thermoelectric 111, ... 1st metal (+ leg metal), 112 ... 2nd metal (-leg metal), 113, 114 ... insulator, 115 ... insulation coated conductor, 131 ... heat storage member, 132 ... heat insulation member, 200 ... sensor unit, 210 ... sensor module, 211 ... pressure detection element, 212 ... temperature detection element, 230 ... control IC, 231 ... CPU, 232 ... memory circuit, 233,234 ... A / D conversion circuit, 240 ... coil antenna for setting, 250 ... transmission IC , 260 storage battery, 270 transmission antenna, 280 low voltage rectifier circuit.

Claims (7)

ホイールと該ホイールに装着されたタイヤ本体とからなる道路走行車両用のタイヤ・ホイール組立体において、
車両走行時に、低温側の温度を検知するように配置された一端部の温度と高温側の温度を検知するように配置された他端部の温度との温度差に基づいてゼーベック効果により電力を発生する熱電対を有する電力生成装置を有するとともに、
前記熱電対における高温側の温度を検知する端部に設けられた蓄熱部材或いは前記熱電対における低温側の温度を検知する端部と前記ホイールとの間に設けられた断熱部材の少なくとも何れか一方を備えている
ことを特徴とするタイヤ・ホイール組立体。 In a tire / wheel assembly for a road vehicle comprising a wheel and a tire body mounted on the wheel,
When the vehicle is running, power is generated by the Seebeck effect based on the temperature difference between the temperature of one end arranged to detect the temperature on the low temperature side and the temperature of the other end arranged to detect the temperature on the high temperature side. Having a power generator with a thermocouple to generate ,
At least one of a heat storage member provided at an end portion for detecting a temperature on a high temperature side in the thermocouple or a heat insulating member provided between an end portion for detecting a temperature on a low temperature side in the thermocouple and the wheel. A tire / wheel assembly characterized by comprising: 前記電力生成装置は、低温側の温度を検知する端部によって前記タイヤ・ホイール組立体の外気温度を検知し、高温側の温度を検知する端部によって前記ホイールの温度を検知し、これらの温度差によって電力を発生する熱電対を備えている
ことを特徴とする請求項１に記載のタイヤ・ホイール組立体。 The power generation device detects an outside air temperature of the tire / wheel assembly by an end portion that detects a temperature on a low temperature side, and detects a temperature of the wheel by an end portion that detects a temperature on a high temperature side. The tire / wheel assembly according to claim 1, further comprising a thermocouple that generates electric power due to the difference. 前記電力生成装置は、高温側の温度を検知する端部によって前記ホイールの温度を検知し、低温側の温度を検知する端部によってタイヤ空気室の内部温度を検知し、これらの温度差によって電力を発生する熱電対を備えている
ことを特徴とする請求項１に記載のタイヤ・ホイール組立体。 The power generation device detects the temperature of the wheel by an end that detects the temperature on the high temperature side, detects the internal temperature of the tire air chamber by the end that detects the temperature on the low temperature side, The tire / wheel assembly according to claim 1, further comprising a thermocouple that generates 前記熱電対の前記低温側の温度を検知する端部と前記高温側の温度を検知する端部の双方が平板状に形成されている
ことを特徴とする請求項２又は請求項３に記載のタイヤ・ホイール組立体。 According to claim 2 or claim 3, characterized in that both ends to detect the temperature and the end of the hot side for detecting the temperature of the cold side of the thermocouple is formed in the shape of a flat plate Tire and wheel assembly. 前記電力生成装置から生成される電力を蓄電する蓄電手段を備えている
ことを特徴とする請求項１乃至請求項４の何れかに記載のタイヤ・ホイール組立体。 The tire / wheel assembly according to any one of claims 1 to 4 , further comprising power storage means for storing electric power generated from the power generation device. 前記蓄電手段から電力供給を受けて動作し、タイヤに生ずる所定の物理量を検出するセンサを有するセンサユニットを備えている
ことを特徴とする請求項５に記載のタイヤ・ホイール組立体。 The tire / wheel assembly according to claim 5 , further comprising a sensor unit having a sensor that operates by receiving power supply from the power storage unit and detects a predetermined physical quantity generated in the tire. ホイールと該ホイールに装着されたタイヤ本体とからなる道路走行車両用のタイヤ・ホイール組立体を構成する前記ホイールであって、
前記請求項１乃至請求項４に記載の電力生成装置を備えている
ことを特徴とするホイール。 The wheel constituting a tire / wheel assembly for a road vehicle comprising a wheel and a tire body mounted on the wheel,
A wheel comprising the power generation device according to claim 1 .
JP2004368825A 2004-12-21 2004-12-21 Tire and wheel assembly and wheel Expired - Fee Related JP4491784B2 (en)

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FR2918926B1 (en) * 2007-07-18 2009-10-16 Michelin Soc Tech PNEUMATIC HAVING A THERMOELECTRIC DEVICE
GB0912452D0 (en) * 2009-07-17 2009-08-26 Agco Gmbh Vehicle battery charging apparatus
JP7328488B2 (en) * 2018-07-09 2023-08-17 横浜ゴム株式会社 Tire information acquisition device

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JPH09237398A (en) * 1996-02-29 1997-09-09 Yokohama Rubber Co Ltd:The Transponder for fitting tire and tire fitted with transponder
JP2001163022A (en) * 1999-12-07 2001-06-19 Yokohama Rubber Co Ltd:The Tire/wheel assembly
JP2005022457A (en) * 2003-06-30 2005-01-27 Seiko Instruments Inc Tire monitoring device
JP2005178425A (en) * 2003-12-16 2005-07-07 Denso Corp Tire air pressure detection device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09237398A (en) * 1996-02-29 1997-09-09 Yokohama Rubber Co Ltd:The Transponder for fitting tire and tire fitted with transponder
JP2001163022A (en) * 1999-12-07 2001-06-19 Yokohama Rubber Co Ltd:The Tire/wheel assembly
JP2005022457A (en) * 2003-06-30 2005-01-27 Seiko Instruments Inc Tire monitoring device
JP2005178425A (en) * 2003-12-16 2005-07-07 Denso Corp Tire air pressure detection device

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