JP2007085798A - Temperature measuring device - Google Patents

Temperature measuring device Download PDF

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JP2007085798A
JP2007085798A JP2005272853A JP2005272853A JP2007085798A JP 2007085798 A JP2007085798 A JP 2007085798A JP 2005272853 A JP2005272853 A JP 2005272853A JP 2005272853 A JP2005272853 A JP 2005272853A JP 2007085798 A JP2007085798 A JP 2007085798A
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temperature
temperature sensing
sensing element
voltage
intermediate connection
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JP4806242B2 (en
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Junya Yano
準也 矢野
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Sanyo Electric Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To simplify a circuit constitution by reducing voltage measuring points, in comparison with the number of thermosensitive elements, and by reducing I/O lines connected to the thermosensitive elements. <P>SOLUTION: In this temperature measuring device, the plurality of thermosensitive elements 1, whose resistance values are changed according to a temperature are connected to a power source 2 via a reference resistance 4. The thermosensitive element 1 is energized from the power source 2 via the reference resistance 4, and the electrical resistance of the thermosensitive element 1 is detected from the detected voltage of the thermosensitive element 1, and each temperature of a plurality of measuring points are detected from each electrical resistance. In the temperature measuring device, two or more thermosensitive elements 1 are connected in series to form a thermosensitive element unit 3, and either or both of the end and an intermediate connection point 6 of the thermosensitive element unit 3 are connected to the power source 2 via the reference resistance 4 and a switch 5. In the measuring device, the voltage of the intermediate connection point 6 is detected by switching the switch 5 to the on/off state, and the electrical resistance of each thermosensitive element 1 constituting the thermosensitive element unit 3 is detected from the voltage detected, and the temperature of each measuring point is detected from the electrical resistance. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、主として多数の測定点の温度を検出する温度の測定装置に関する。   The present invention mainly relates to a temperature measurement device that detects temperatures at a large number of measurement points.

図1は、温度で電気抵抗が変化する感温素子で測定点の温度を検出する従来の測定装置の回路図である(特許文献1参照)。この測定装置は、感温素子201として、例えばNTCサーミスタやPTCサーミスタを使用する。この測定装置は、基準抵抗204を介して感温素子201を電源202に接続している。基準抵抗204は電気抵抗が既知の抵抗器である。電源202が感温素子201と基準抵抗204の直列回路に通電する状態で、感温素子201の両端に誘導される電圧を検出して、感温素子201の電気抵抗が計算して検出できる。
特開2005−183098号公報
FIG. 1 is a circuit diagram of a conventional measuring apparatus that detects the temperature of a measurement point with a temperature-sensitive element whose electrical resistance changes with temperature (see Patent Document 1). This measuring apparatus uses, for example, an NTC thermistor or a PTC thermistor as the temperature sensing element 201. In this measuring apparatus, a temperature sensitive element 201 is connected to a power source 202 via a reference resistor 204. The reference resistor 204 is a resistor having a known electrical resistance. In a state where the power source 202 is energized in the series circuit of the temperature sensing element 201 and the reference resistor 204, the voltage induced at both ends of the temperature sensing element 201 is detected, and the electric resistance of the temperature sensing element 201 can be calculated and detected.
JP 2005-183098 A

図1の回路を利用して、多数の測定点の温度を検出する回路を図2に示す。この多点の温度の測定装置は、マルチプレクサ207で切り換えて、各々の感温素子201の電圧を検出する。検出された電圧から、各々の感温素子201の電気抵抗が演算される。図2の回路に示すように、複数の感温素子201にて構成される感熱素子ユニット体203Tと、検出回路2010とは、電気接続線208にて結線、電気接続される。図3に示すように、感温素子は温度に対する電気抵抗が特定されている。したがって、電気抵抗が検出されると、電気抵抗から温度が特定される。   FIG. 2 shows a circuit for detecting temperatures at a large number of measurement points using the circuit of FIG. This multi-point temperature measuring device is switched by a multiplexer 207 and detects the voltage of each temperature sensing element 201. From the detected voltage, the electric resistance of each temperature sensing element 201 is calculated. As shown in the circuit of FIG. 2, the thermal element unit body 203 </ b> T composed of a plurality of thermal elements 201 and the detection circuit 2010 are connected and electrically connected by an electrical connection line 208. As shown in FIG. 3, the temperature-sensitive element has an electrical resistance with respect to temperature. Therefore, when the electrical resistance is detected, the temperature is specified from the electrical resistance.

図2に示す構造の温度の測定装置は、各々の感温素子の電圧を検出するので、感温素子の数と同じ数の電圧を検出する必要がある。したがって、図に示すように、マルチプレクサ207で電圧測定点を切り換える回路にあっては、マルチプレクサ207のチャンネル数が多くなる。そして、図1及び図2において、測定点に配設される各々の感温素子201は、I/O線208(=電気接続線208)を介して検出回路2010に接続されるが、I/O線208が各々の感温素子201の両端に接続されるために、I/O線208の本数は感温素子201の2倍と極めて多くなる。このため、多数の測定点の温度を検出する回路にあっては、回路構成とI/O線の配線が極めて複雑になる。   Since the temperature measuring device having the structure shown in FIG. 2 detects the voltage of each temperature sensing element, it is necessary to detect the same number of voltages as the number of temperature sensing elements. Therefore, as shown in the figure, in the circuit for switching the voltage measurement point by the multiplexer 207, the number of channels of the multiplexer 207 increases. In FIG. 1 and FIG. 2, each temperature sensing element 201 disposed at the measurement point is connected to the detection circuit 2010 via the I / O line 208 (= electric connection line 208). Since the O line 208 is connected to both ends of each temperature sensing element 201, the number of I / O lines 208 is extremely large, twice that of the temperature sensing element 201. For this reason, in a circuit that detects the temperature of a large number of measurement points, the circuit configuration and the wiring of I / O lines become extremely complicated.

本発明は、以上の欠点を解決することを目的に開発されたものである。本発明の重要な目的は、感温素子の個数に比較して電圧測定点を少なくでき、また感温素子、感温素子ユニット体に接続する電気接続線であるI/O線も少なくして、回路構成を簡単にできる温度の測定装置を提供することにある。   The present invention has been developed for the purpose of solving the above drawbacks. An important object of the present invention is to reduce the number of voltage measurement points compared to the number of temperature sensing elements, and also to reduce the number of I / O wires that are electrical connection lines connected to the temperature sensing element and the temperature sensing element unit body. An object of the present invention is to provide a temperature measuring device that can simplify the circuit configuration.

本発明の温度の測定装置は、前述の目的を達成するために以下の構成を備える。
温度の測定装置は、温度によって抵抗値が変化する複数の感温素子1を基準抵抗4を介して電源2に接続しており、電源2から基準抵抗4を介して感温素子1に通電して、感温素子1の電圧を検出し、検出された電圧から感温素子1の電気抵抗を検出し、電気抵抗から複数の測定点の温度を検出する。温度の測定装置は、2つ以上の感温素子1を直列に接続して感温素子ユニット3として、感温素子ユニット3の端部と中間接続点6のいずれか又は両方を基準抵抗4とスイッチ5を介して電源2に接続している。この測定装置は、スイッチ5をオンオフに切り換えて、中間接続点6の電圧を検出し、検出された電圧から感温素子ユニット3を構成する各々の感温素子1の電気抵抗を検出し、電気抵抗から測定点の温度を検出する。
The temperature measuring device of the present invention has the following configuration in order to achieve the above-described object.
In the temperature measuring device, a plurality of temperature sensing elements 1 whose resistance values change with temperature are connected to a power source 2 via a reference resistor 4, and the temperature sensing element 1 is energized from the power source 2 via the reference resistor 4. Then, the voltage of the temperature sensing element 1 is detected, the electrical resistance of the temperature sensing element 1 is detected from the detected voltage, and the temperature at a plurality of measurement points is detected from the electrical resistance. The temperature measuring apparatus connects two or more temperature sensing elements 1 in series to form a temperature sensing element unit 3, and either or both of the end of the temperature sensing element unit 3 and the intermediate connection point 6 are connected to the reference resistor 4. The power supply 2 is connected via the switch 5. This measuring device switches the switch 5 on and off, detects the voltage at the intermediate connection point 6, detects the electrical resistance of each temperature sensing element 1 constituting the temperature sensing element unit 3 from the detected voltage, The temperature of the measurement point is detected from the resistance.

本発明の温度の測定装置は、1つ以上の感温素子ユニット1で構成される感熱素子ユニット体3Tを備えることができる。該感熱素子ユニット体3Tと検出回路10は、複数の電気接続線にて結線することができる。   The temperature measuring apparatus of the present invention can include a thermal element unit body 3 </ b> T composed of one or more thermosensitive element units 1. The thermal element unit 3T and the detection circuit 10 can be connected by a plurality of electrical connection lines.

本発明の温度の測定装置は、感温素子ユニット3の中間接続点6とスイッチ5との間にマルチプレクサ7を接続して、マルチプレクサ7の出力側をスイッチ5と基準抵抗4を介して電源2に接続することができる。   In the temperature measuring apparatus of the present invention, a multiplexer 7 is connected between the intermediate connection point 6 of the temperature sensing element unit 3 and the switch 5, and the output side of the multiplexer 7 is connected to the power source 2 via the switch 5 and the reference resistor 4. Can be connected to.

本発明の温度の測定装置は、2つの感温素子1を直列に接続して、感温素子1の中間接続点6の電圧を検出することができる。   The temperature measuring device of the present invention can detect the voltage at the intermediate connection point 6 of the temperature sensing element 1 by connecting the two temperature sensing elements 1 in series.

本発明の温度の測定装置は、全体の感温素子1を、互いに直列に接続している2つ以上の感温素子1からなる感温素子ユニット3に分割して、各々の感温素子ユニット3の中間接続点6をマルチプレクサ7の入力側に接続し、マルチプレクサ7で感温素子ユニット3の中間接続点6を切り換えて、中間接続点6の電圧を検出することができる。   The temperature measuring device according to the present invention divides the entire temperature sensing element 1 into temperature sensing element units 3 each including two or more temperature sensing elements 1 connected in series with each other, and each temperature sensing element unit is divided. 3 is connected to the input side of the multiplexer 7, and the multiplexer 7 can switch the intermediate connection point 6 of the temperature sensitive element unit 3 to detect the voltage at the intermediate connection point 6.

本発明の温度の測定装置は、全体の感温素子101を、互いに直列に接続している2つ以上の感温素子101からなる感温素子ユニット103に分割すると共に、各々の感温素子ユニット103の両端と中間接続点106を電気接続線であるI/O線108でもって、中間接続点106の電圧を検出して感温素子101の温度を検出する検出回路1010に接続することができる。各々の感温素子ユニット103は両端を接続して互いに並列に接続して、並列接続される感温素子ユニット103の両端を共通の電源線109でもって検出回路1010に接続することができる。   The temperature measuring device according to the present invention divides the entire temperature sensing element 101 into temperature sensing element units 103 including two or more temperature sensing elements 101 connected in series with each other, and each temperature sensing element unit. 103 and the intermediate connection point 106 can be connected to a detection circuit 1010 that detects the temperature of the temperature-sensitive element 101 by detecting the voltage at the intermediate connection point 106 with an I / O line 108 that is an electrical connection line. . Each temperature sensing element unit 103 can be connected at both ends in parallel to each other, and both ends of the temperature sensing element units 103 connected in parallel can be connected to the detection circuit 1010 by a common power line 109.

本発明の温度の測定装置は、感温素子111、121、131に直列抵抗1112、1212、1312と並列抵抗1113、1213、1313からなる故障検出回路1111、1211、1311を接続することができる。   In the temperature measuring device of the present invention, failure detection circuits 1111, 1211, and 1311 including series resistors 1112, 1212, and 1312 and parallel resistors 1113, 1213, and 1313 can be connected to the temperature sensitive elements 111, 121, and 131.

本発明の温度の測定装置は、複数の感温素子141が複数の電池1414の表面温度を検出するように、各々の感温素子141を各々の電池1414に熱結合して配設し、故障した 感温素子で検出される電池温度を、隣接する電池の温度で保障することができる。   In the temperature measuring device of the present invention, each temperature sensing element 141 is thermally coupled to each battery 1414 so that the plurality of temperature sensing elements 141 detect the surface temperatures of the plurality of batteries 1414. The battery temperature detected by the temperature sensing element can be guaranteed by the temperature of the adjacent battery.

本発明の温度の測定装置は、感温素子の個数に比較して電圧測定点を少なくできる。とくに、2個の感温素子を直列に接続して感温素子ユニットとする測定装置は、電圧測定点の数を感温素子の半分に減少できる。また、検出回路と、感温素子、感温素子ユニット体に接続する電気接続線であるI/O線の本数も少なくして、回路構成を簡単にできる。I/O線の数を少なくできるのは、複数の感温素子を直列に接続して、端部と中間接続点にI/O線を接続するからである。たとえば、2個の感温素子を直列に接続する装置は、従来であれば、図1に示す測定装置を2個用意するので、I/O線は4本となり、また、図2に示す測定装置において、感温素子が2個であれば、I/O線は4本となる。一方、本発明においては、図4に示すように、I/O線は3本となる。   The temperature measuring device of the present invention can reduce the number of voltage measurement points compared to the number of temperature sensitive elements. In particular, a measuring device in which two temperature sensing elements are connected in series to form a temperature sensing element unit can reduce the number of voltage measurement points to half that of the temperature sensing element. In addition, the number of I / O lines that are electrical connection lines connected to the detection circuit, the temperature sensing element, and the temperature sensing element unit body can be reduced to simplify the circuit configuration. The number of I / O lines can be reduced because a plurality of temperature sensitive elements are connected in series, and the I / O lines are connected to the end and the intermediate connection point. For example, a conventional apparatus for connecting two temperature sensing elements in series has two measuring apparatuses shown in FIG. 1, so there are four I / O lines, and the measuring apparatus shown in FIG. In the apparatus, if there are two temperature sensitive elements, there are four I / O lines. On the other hand, in the present invention, as shown in FIG. 4, there are three I / O lines.

以下、本発明の実施例を図面に基づいて説明する。ただし、以下に示す実施例は、本発明の技術思想を具体化するための温度の測定装置を例示するものであって、本発明は温度の測定装置を以下のものに特定しない。   Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below exemplify a temperature measuring device for embodying the technical idea of the present invention, and the present invention does not specify the temperature measuring device as follows.

さらに、本明細書において、各実施例における同じ構成要素については、図5ないし図9では上1桁を除く下桁に、図10ないし図19では上2桁を除く下桁に、同符号を付しており、その詳細な説明を省略しているものもある。   Further, in the present specification, the same components in the respective embodiments are denoted by the same reference numerals in FIGS. 5 to 9 in the lower digits excluding the upper one digit and in FIGS. 10 to 19 in the lower digits excluding the upper two digits. In some cases, detailed description thereof is omitted.

図4ないし図8に示す温度の測定装置は、温度によって抵抗値が変化する複数の感温素子1、51、61、71、81を電源2、52、62、72、82に接続している。電源2、52、62、72、82は感温素子1、51、61、71、81に通電する。この状態で、感温素子1、51、61、71、81の電圧が検出され、検出された電圧から感温素子1、51、61、71、81の電気抵抗が演算して検出される。電気抵抗が検出されると、感温素子1、51、61、71、81の電気抵抗−温度の特性から、測定点の温度が特定される。   In the temperature measuring apparatus shown in FIGS. 4 to 8, a plurality of temperature sensitive elements 1, 51, 61, 71, 81 whose resistance values change with temperature are connected to power sources 2, 52, 62, 72, 82. . The power sources 2, 52, 62, 72, 82 energize the temperature sensitive elements 1, 51, 61, 71, 81. In this state, the voltages of the temperature sensitive elements 1, 51, 61, 71, 81 are detected, and the electric resistances of the temperature sensitive elements 1, 51, 61, 71, 81 are calculated from the detected voltages and detected. When the electrical resistance is detected, the temperature at the measurement point is specified from the electrical resistance-temperature characteristics of the temperature sensitive elements 1, 51, 61, 71, 81.

これ等の図に示す温度の測定装置は、2つ以上の感温素子1、51、61、71、81を直列に接続して感温素子ユニット3、53、63、73、83としている。また、図4ないし図8においては、感温素子ユニット3、53、63、73、83の1つより、感温素子ユニット体3T、53T、63T、73T、83Tを構成している。感温素子ユニット体3T、53T、63T、73T、83Tからの出力は、電気接続線であるI/O線8、58、68、78、88を介して、検出回路10、510、610、710、810に入力される。検出回路10、510、610、710、810においては、図示しないが、中間接続点6、56、66、76、86の電圧を測定する回路が配置される。このような検出回路10、510、610、710、810は、プリント基板上に配置されることになる。   In the temperature measuring apparatus shown in these drawings, two or more temperature sensing elements 1, 51, 61, 71, 81 are connected in series to form temperature sensing element units 3, 53, 63, 73, 83. 4 to 8, a temperature sensing element unit body 3T, 53T, 63T, 73T, 83T is constituted by one of the temperature sensing element units 3, 53, 63, 73, 83. Outputs from the temperature sensing element unit bodies 3T, 53T, 63T, 73T, and 83T are detected circuits 10, 510, 610, and 710 through I / O lines 8, 58, 68, 78, and 88 that are electrical connection lines. , 810. In the detection circuits 10, 510, 610, 710, and 810, a circuit that measures the voltage at the intermediate connection points 6, 56, 66, 76, and 86 is disposed, although not shown. Such detection circuits 10, 510, 610, 710, 810 are arranged on the printed circuit board.

図4ないし図6の温度の測定装置は、2個の感温素子1、51、61を直列に接続して感温素子ユニット3、53、63としている。図7の温度の測定装置は、3個の感温素子71を直列に接続して感温素子ユニット73としている。図8の温度の測定装置は、4個の感温素子81を直列に接続して感温素子ユニット83としている。以上の温度の測定装置は、2〜4個の感温素子1、51、61、71、81を直列に接続して感温素子ユニット3、53、63、73、83とするが、5個以上の感温素子を直列に接続して感温素子ユニットとすることもできる。   In the temperature measuring apparatus shown in FIGS. 4 to 6, two temperature sensing elements 1, 51, 61 are connected in series to form temperature sensing element units 3, 53, 63. In the temperature measuring apparatus of FIG. 7, three temperature sensing elements 71 are connected in series to form a temperature sensing element unit 73. In the temperature measuring apparatus of FIG. 8, four temperature sensing elements 81 are connected in series to form a temperature sensing element unit 83. The above temperature measuring apparatus is composed of 2 to 4 temperature sensitive elements 1, 51, 61, 71, 81 connected in series to form temperature sensitive element units 3, 53, 63, 73, 83, but 5 elements. The above temperature sensing elements can be connected in series to form a temperature sensing element unit.

感温素子ユニット3、53、63、73、83は、端部と中間接続点6、56、66、76、86のいずれか又は両方を、スイッチ5、55、65、75、85を介して電源2、52、62、72、82に接続している。図4ないし図8の温度の測定装置は、感温素子ユニット3、53、63、73、83の一端をアースに接続し、感温素子ユニット3、53、63、73、83の他端と中間接続点6、56、66、76、86を基準抵抗4、54、64、74、84とスイッチ5、55、65、75、85の直列回路を介して電源2、52、62、72、82に接続している。基準抵抗4、54、64、74、84は電気抵抗が既知の抵抗器である。   The temperature sensing element units 3, 53, 63, 73, 83 are connected to either or both of the end portions and the intermediate connection points 6, 56, 66, 76, 86 via switches 5, 55, 65, 75, 85. Connected to power sources 2, 52, 62, 72, 82. 4 to 8, the temperature measuring device units 3, 53, 63, 73, 83 are connected to the ground at one end, and the other ends of the temperature sensing device units 3, 53, 63, 73, 83 are connected to the ground. The intermediate connection points 6, 56, 66, 76, 86 are connected to the power supplies 2, 52, 62, 72, through the series circuit of the reference resistors 4, 54, 64, 74, 84 and the switches 5, 55, 65, 75, 85. 82. The reference resistors 4, 54, 64, 74, and 84 are resistors with known electrical resistance.

図4の温度の測定装置は、2個の感温素子1を直列に接続して、感温素子ユニット3の端部と中間接続点6にスイッチ5を接続している。この測定装置は、以下のようにして、各々の感温素子1の電気抵抗を検出する。まず、中間接続点6に接続しているスイッチSW2をオン、他方のスイッチSW1をオフとして中間接続点6の電圧e0(sw2)を検出し、その後、中間接続点6のスイッチSW2をオフにして他方のスイッチSW1をオンにして中間接続点6の電圧e0(sw1)を検出し、中間接続点6の電圧e0(sw2)とe0(sw1)から、以下の数1と数2で、各々の感温素子1の電気抵抗を演算する。   In the temperature measuring apparatus of FIG. 4, two temperature sensing elements 1 are connected in series, and a switch 5 is connected to the end of the temperature sensing element unit 3 and the intermediate connection point 6. This measuring device detects the electrical resistance of each temperature sensing element 1 as follows. First, the switch SW2 connected to the intermediate connection point 6 is turned on, the other switch SW1 is turned off to detect the voltage e0 (sw2) at the intermediate connection point 6, and then the switch SW2 at the intermediate connection point 6 is turned off. The other switch SW1 is turned on to detect the voltage e0 (sw1) at the intermediate connection point 6. From the voltages e0 (sw2) and e0 (sw1) at the intermediate connection point 6, The electric resistance of the temperature sensitive element 1 is calculated.

Figure 2007085798
Figure 2007085798

Figure 2007085798
Figure 2007085798

ただし、これ等の式において、Rt1は、図において上の感温素子1の電気抵抗、Rt2は下の感温素子1の電気抵抗、Vinは電源電圧、R0は基準抵抗4の電気抵抗である。   In these equations, Rt1 is the electrical resistance of the upper temperature sensing element 1, Rt2 is the electrical resistance of the lower temperature sensing element 1, Vin is the power supply voltage, and R0 is the electrical resistance of the reference resistor 4. .

この温度の測定装置は、たとえば下記の条件のとき、感温素子1の電気抵抗が以下のようになる。   In the temperature measuring device, for example, the electrical resistance of the temperature sensing element 1 is as follows under the following conditions.

Vin=5.0V、R0=10kΩ、Rt1=11kΩ、Rt2=10kΩのとき、
e0(sw2)=2.5Vより、Rt2=10kΩ、
e0(sw1)=1.613Vより、Rt1=10.998kΩ 11kΩ
したがって、抵抗値が分かればそれぞれの測定点の温度が分かる。
When Vin = 5.0V, R0 = 10 kΩ, Rt1 = 11 kΩ, Rt2 = 10 kΩ,
From e0 (sw2) = 2.5V, Rt2 = 10kΩ,
From e0 (sw1) = 1.613V, Rt1 = 10.998 kΩ 11 kΩ
Therefore, if the resistance value is known, the temperature at each measurement point can be known.

温度の測定装置は、必ずしも感温素子ユニットの端部と中間接続点の全てにスイッチを接続する必要はない。図5の温度の測定装置は、感温素子ユニット53の端部のみをスイッチ55と基準抵抗54を介して電源52に接続し、中間接続点56はスイッチを介することなく基準抵抗54を介して電源52に接続している。   The temperature measuring device does not necessarily need to connect a switch to all of the end portions of the temperature sensing element unit and the intermediate connection points. In the temperature measuring apparatus of FIG. 5, only the end of the temperature sensing element unit 53 is connected to the power source 52 via the switch 55 and the reference resistor 54, and the intermediate connection point 56 is connected via the reference resistor 54 without passing through the switch. The power supply 52 is connected.

この温度の測定装置は、スイッチSW1をオフにする状態で中間接続点56の電圧e0(Open)を検出し、その後、スイッチSW1をオンにする状態で中間接続点56の電圧e0(Close)を検出し、以下の数3と数4で感温素子51の電気抵抗を検出する。   This temperature measuring device detects the voltage e0 (Open) at the intermediate connection point 56 in a state in which the switch SW1 is turned off, and then the voltage e0 (Close) at the intermediate connection point 56 in a state in which the switch SW1 is turned on. The electrical resistance of the temperature sensing element 51 is detected by the following equations 3 and 4.

Figure 2007085798
Figure 2007085798

Figure 2007085798
Figure 2007085798

この温度の測定装置は、下記の条件とするとき、感温素子51の電気抵抗が以下のようになる。   When the temperature measuring device has the following conditions, the electrical resistance of the temperature sensing element 51 is as follows.

Vin=5.0V、R0=10kΩ、Rt1=11kΩ、Rt2=10kΩのとき、
e0(Open)=2.5Vより、Rt2=10kΩ、
e0(Close)=2.981Vより、Rt1=10.988kΩ≒11kΩ
したがって、抵抗値が分かればそれぞれの測定点の温度が分かる。
When Vin = 5.0V, R0 = 10 kΩ, Rt1 = 11 kΩ, Rt2 = 10 kΩ,
From e0 (Open) = 2.5V, Rt2 = 10kΩ,
From e0 (Close) = 2.981V, Rt1 = 10.988 kΩ≈11 kΩ
Therefore, if the resistance value is known, the temperature at each measurement point can be known.

図6の温度の測定装置は、中間接続点66のみをスイッチ65と基準抵抗64、を介して電源62に接続し、感温素子ユニット63の端部はスイッチを介することなく基準抵抗64を介して電源62に接続している。   In the temperature measuring apparatus of FIG. 6, only the intermediate connection point 66 is connected to the power source 62 via the switch 65 and the reference resistor 64, and the end of the temperature sensing element unit 63 is connected via the reference resistor 64 without passing through the switch. Connected to the power source 62.

この温度の測定装置は、スイッチSW1をオフにする状態で中間接続点66の電圧e0(Open)を検出し、その後、スイッチSW1をオンにする状態で中間接続点66の電圧e0(Close)を検出し、以下の数5と数6で感温素子61の電気抵抗を検出する。   This temperature measuring device detects the voltage e0 (Open) at the intermediate connection point 66 in the state where the switch SW1 is turned off, and thereafter, the voltage e0 (Close) at the intermediate connection point 66 in the state where the switch SW1 is turned on. The electrical resistance of the temperature sensing element 61 is detected by the following formulas 5 and 6.

Figure 2007085798
Figure 2007085798

Figure 2007085798
Figure 2007085798

この温度の測定装置は、下記の条件とするとき、感温素子61の電気抵抗が以下のようになる。   When the temperature measuring device has the following conditions, the electric resistance of the temperature sensitive element 61 is as follows.

Vin=5.0V、R0=10kΩ、Rt1=11kΩ、Rt2=10kΩのとき、
e0(Open)=1.613V、e0(Close)=2.981Vより、
Rt1=11.003kΩ≒11kΩ、Rt2=10.0024kΩ≒10kΩ
したがって、抵抗値が分かればそれぞれの測定点の温度が分かる。
When Vin = 5.0V, R0 = 10 kΩ, Rt1 = 11 kΩ, Rt2 = 10 kΩ,
From e0 (Open) = 1.613V, e0 (Close) = 2.981V,
Rt1 = 11.003 kΩ≈11 kΩ, Rt2 = 10.0024 kΩ≈10 kΩ
Therefore, if the resistance value is known, the temperature at each measurement point can be known.

図9は、感温素子ユニット93の中間接続点96とスイッチ95との間にマルチプレクサ97を接続する温度の測定装置を示す。この温度の測定装置は、3つの感温素子ユニット93で構成される感温素子ユニット体93Tと、ここからの出力が電気接続線であるI/O線98を介して入力される検出回路910とを備えている。この温度の測定装置は、マルチプレクサ97の出力側にスイッチ95と基準抵抗94を接続している。マルチプレクサ97は、感温素子ユニット93の中間接続点96を順番に切り換えて出力する。マルチプレクサ97の出力は、A/Dコンバータ(図示せず)でデジタル信号に変換される。A/Dコンバータから出力されるデジタル信号の電圧は、演算回路(図示せず)で演算されて、感温素子91の電気抵抗が検出される。   FIG. 9 shows a temperature measuring device in which a multiplexer 97 is connected between the intermediate connection point 96 of the temperature sensing element unit 93 and the switch 95. This temperature measuring apparatus includes a temperature sensing element unit body 93T composed of three temperature sensing element units 93 and a detection circuit 910 in which an output from the temperature sensing element unit body 93T is input via an I / O line 98 which is an electrical connection line. And. In this temperature measuring device, a switch 95 and a reference resistor 94 are connected to the output side of the multiplexer 97. The multiplexer 97 switches the intermediate connection point 96 of the temperature sensing element unit 93 in order and outputs it. The output of the multiplexer 97 is converted into a digital signal by an A / D converter (not shown). The voltage of the digital signal output from the A / D converter is calculated by an arithmetic circuit (not shown), and the electric resistance of the temperature sensing element 91 is detected.

図9の温度の測定装置は、図2に示す従来の測定装置に比べて、マルチプレクサ97の入力チャンネルの電気接続線であるI/O線98を半分にできる。それは、中間接続点96の電圧を検出して、2個の感温素子91の電気抵抗を測定できるからである。また、この図に示す温度の測定装置は、基準抵抗94とスイッチ95をマルチプレクサ97の出力側に接続して、基準抵抗94とスイッチ95の数を少なくできる。マルチプレクサ97の入力側に接続される各々の中間接続点96に、別々に独立して基準抵抗とスイッチを接続する必要がないからである。   The temperature measuring device of FIG. 9 can halve the I / O line 98 that is the electrical connection line of the input channel of the multiplexer 97, as compared with the conventional measuring device shown in FIG. This is because the electric resistance of the two temperature sensing elements 91 can be measured by detecting the voltage at the intermediate connection point 96. Further, the temperature measuring apparatus shown in this figure can reduce the number of reference resistors 94 and switches 95 by connecting reference resistors 94 and switches 95 to the output side of the multiplexer 97. This is because it is not necessary to connect a reference resistor and a switch separately to each intermediate connection point 96 connected to the input side of the multiplexer 97.

図10は、多数の感温素子ユニット103にI/O線108を接続する状態を示す回路図である。この図に示す温度の測定装置は、I/O線108でもって、各々の感温素子ユニット103で構成される感温素子ユニット体103Tの出力を、を検出回路1010に接続している。検出回路1010は、中間接続点106の電圧を検出して各々の感温素子101の温度を検出する回路である。各々の感温素子ユニット103は、両端を互いに接続して並列に接続され、並列接続された感温素子ユニット103の両端を共通の電源線109からなるI/O線108でもって検出回路1010に接続している。この温度の測定装置は、I/O線108の総本数を少なくできる。ここで、感温素子ユニット体103Tは、基板状であるが、基板状に限定されるものでもない。図10において、検出回路1010は、図6に示す検出回路610と同様な回路構成とすることで、各感温素子101の電圧を測定することができる。ただし、図10においては、基準抵抗104は、感温素子ユニット体103T内に配置されている。   FIG. 10 is a circuit diagram showing a state in which the I / O line 108 is connected to a large number of temperature sensing element units 103. In the temperature measuring apparatus shown in this figure, the output of the temperature sensing element unit body 103T constituted by each temperature sensing element unit 103 is connected to a detection circuit 1010 by an I / O line 108. The detection circuit 1010 is a circuit that detects the temperature of each temperature sensing element 101 by detecting the voltage at the intermediate connection point 106. Each temperature sensing element unit 103 is connected in parallel with both ends connected to each other, and both ends of the temperature sensing element units 103 connected in parallel are connected to the detection circuit 1010 with I / O lines 108 including a common power line 109. Connected. This temperature measuring device can reduce the total number of I / O lines 108. Here, the temperature-sensitive element unit body 103T has a substrate shape, but is not limited to the substrate shape. In FIG. 10, the detection circuit 1010 can measure the voltage of each temperature sensing element 101 by adopting a circuit configuration similar to that of the detection circuit 610 shown in FIG. However, in FIG. 10, the reference resistor 104 is disposed in the temperature sensing element unit body 103T.

表1は、図10に示すように、感温素子ユニット103を並列に接続している電源線109のI/O線108を共通として、感温素子ユニット103を検出回路1010に接続するI/O線108の数と、中間接続点106の電圧を測定する電圧測定点の数を示す表である。ただし、この表は温度の測定点を60点としている。   As shown in FIG. 10, the I / O line 108 of the power supply line 109 connecting the temperature sensing element units 103 in parallel is used in common as shown in FIG. 10, and the I / O connecting the temperature sensing element unit 103 to the detection circuit 1010 is used. 6 is a table showing the number of O lines 108 and the number of voltage measurement points at which the voltage at the intermediate connection point 106 is measured. In this table, however, the temperature measurement points are 60 points.

Figure 2007085798
Figure 2007085798

この表から明かなように、従来の温度の測定装置は、I/O線を120本、電圧測定点を60点とするのに対し、2つの感温素子101を直列に接続して感温素子ユニット103とする図10の温度の測定装置は、I/O線108が32本と約1/4に減少して、電圧測定点は30点に半減する。3つの感温素子を直列に接続して感温素子ユニット3とする温度の測定装置は、I/O線が42本、電圧測定点が40点となる。
また、上述の図9は、表1の数値を変えて説明することができ、図9は、表1の直列素子数が2で、感温素子ユニット数3に相当して、I/O線(=接続線数)は、1×3+2=5となっている。
As is apparent from this table, the conventional temperature measuring apparatus has 120 I / O wires and 60 voltage measuring points, whereas two temperature sensing elements 101 are connected in series. In the temperature measuring apparatus of FIG. 10 as the element unit 103, the number of I / O wires 108 is reduced to 32, which is about 1/4, and the voltage measuring point is halved to 30 points. The temperature measuring device in which three temperature sensing elements are connected in series to form the temperature sensing element unit 3 has 42 I / O wires and 40 voltage measurement points.
FIG. 9 described above can be described by changing the numerical values in Table 1. FIG. 9 shows that the number of series elements in Table 1 is 2, and the number of temperature-sensitive element units is 3. (= Number of connection lines) is 1 × 3 + 2 = 5.

図4と図5で示された温度の測定装置は、図において下段の感温素子1、51の抵抗値を先に検出して、上段の感温素子1、51の抵抗値を検出する。つまり下段の感温素子1、51が故障すれば同時に上段の感温素子1、51の抵抗値を検出できなくなる。また、図6の温度の測定装置も、下段の感温素子61が故障すると、上段の感温素子61の抵抗値が検出できなくなる。この問題は図11に示す回路で解消する。この温度の測定装置は、感温素子111に直列抵抗1112と並列抵抗1113からなる故障検出回路1111を接続する。故障検出回路1111は、アース側の感温素子111に接続される。   The temperature measuring apparatus shown in FIGS. 4 and 5 detects the resistance values of the lower temperature sensitive elements 1 and 51 in the drawing first, and detects the resistance values of the upper temperature sensitive elements 1 and 51. That is, if the lower temperature sensing elements 1 and 51 fail, the resistance values of the upper temperature sensing elements 1 and 51 cannot be detected at the same time. Further, in the temperature measuring device of FIG. 6, if the lower temperature sensing element 61 fails, the resistance value of the upper temperature sensing element 61 cannot be detected. This problem is solved by the circuit shown in FIG. In this temperature measuring device, a failure detection circuit 1111 including a series resistor 1112 and a parallel resistor 1113 is connected to the temperature sensing element 111. The failure detection circuit 1111 is connected to the temperature-sensitive element 111 on the ground side.

この温度の測定装置は、アース側の感温素子111が断線すると、アース側の感温素子111の等価電気抵抗が並列抵抗1113の電気抵抗となる。また、アース側の感温素子111がショートすると、感温素子111の等価電気抵抗は、直列抵抗1112と並列抵抗1113の合成抵抗となる。したがって、アース側の感温素子111が断線し、あるいはショートしても、残りの感温素子111の電気抵抗を検出して温度を検出できる。なお、この測定装置は、感温素子ユニット113の端部にスイッチ115を接続している。なお、図11においては、感温素子ユニット体113T上に、スイッチ115が配置されている。   In this temperature measuring device, when the earth-side temperature sensing element 111 is disconnected, the equivalent electric resistance of the earth-side temperature sensing element 111 becomes the electric resistance of the parallel resistor 1113. Further, when the temperature-sensitive element 111 on the ground side is short-circuited, the equivalent electric resistance of the temperature-sensitive element 111 becomes a combined resistance of the series resistance 1112 and the parallel resistance 1113. Therefore, even if the temperature-sensitive element 111 on the ground side is disconnected or short-circuited, the temperature can be detected by detecting the electrical resistance of the remaining temperature-sensitive elements 111. In this measuring apparatus, a switch 115 is connected to the end of the temperature sensing element unit 113. In FIG. 11, a switch 115 is disposed on the temperature sensing element unit body 113T.

この温度の測定装置は、以下の数7〜数10で感温素子111の電気抵抗を演算して検出する。   This temperature measuring device calculates and detects the electrical resistance of the temperature sensitive element 111 using the following equations 7 to 10.

Figure 2007085798
Figure 2007085798

Figure 2007085798
Figure 2007085798

Figure 2007085798
Figure 2007085798

Figure 2007085798
Figure 2007085798

さらに、スイッチ125を中間接続点126に接続する温度の測定装置を図12に示す。この温度の測定装置は、以下の数11〜数14で感温素子121の電気抵抗を演算して検出できる。   Further, a temperature measuring device for connecting the switch 125 to the intermediate connection point 126 is shown in FIG. This temperature measuring device can calculate and detect the electric resistance of the temperature sensing element 121 by the following equations 11 to 14.

Figure 2007085798
Figure 2007085798

Figure 2007085798
Figure 2007085798

Figure 2007085798
Figure 2007085798

Figure 2007085798
Figure 2007085798

故障検出回路を設けた温度の測定装置であって、3組の感温素子ユニットを備え、6点の温度を測定する測定装置を図13と図17に示す。図13の温度の測定装置は、スイッチ135を感温素子ユニット133の端部に接続しており、図17の温度の測定装置は、スイッチ175を中間接続点176に接続している。   FIGS. 13 and 17 show a temperature measuring device provided with a failure detection circuit, which includes three sets of temperature sensing element units and measures six temperatures. The temperature measuring device in FIG. 13 connects the switch 135 to the end of the temperature sensitive element unit 133, and the temperature measuring device in FIG. 17 connects the switch 175 to the intermediate connection point 176.

これ等の温度の測定装置は、以下の(1)〜(10)の故障が考えられる。これ等の故障は、図14の構造とし、さらに図15と図16、及び図18と図19のフローチャートでリカバリーすることができる。ただし、図15と図16は図13の温度の測定装置のフローチャートを示し、図18と図19は図17の温度の測定装置のフローチャートを示している。   These temperature measuring devices may have the following failures (1) to (10). These failures can be recovered with the structure shown in FIG. 14 and with the flowcharts shown in FIGS. 15 and 16 and FIGS. 18 and 19. 15 and 16 show a flowchart of the temperature measuring device of FIG. 13, and FIGS. 18 and 19 show a flowchart of the temperature measuring device of FIG.

(1)電源線(A)の断線、
(2)スイッチ制御線(B)の断線、
(3)各組の電圧検出線(C1、C2、C3)の断線、
(4)GND線(D)の断線、
(5)基本回路上段素子(Rt1、Rt3、Rt5)のオープン故障、
(6)基本回路上段素子(Rt1、Rt3、Rt5)のショート故障、
(7)基本回路下段素子(Rt2、Rt4、Rt6)のオープン故障、
(8)基本回路下段素子(Rt2、Rt4、Rt6)のショート故障、
(9)SW1〜SW3のショート故障、
(10)SW1〜SW3のオープン故障
(1) Disconnection of power line (A),
(2) Disconnection of switch control line (B),
(3) Disconnection of each set of voltage detection lines (C1, C2, C3),
(4) Disconnection of GND line (D),
(5) Open failure of basic circuit upper stage elements (Rt1, Rt3, Rt5),
(6) Short circuit failure of the basic circuit upper element (Rt1, Rt3, Rt5),
(7) Open circuit failure of basic circuit lower element (Rt2, Rt4, Rt6),
(8) Short circuit failure of the basic circuit lower element (Rt2, Rt4, Rt6),
(9) SW1 to SW3 short circuit failure,
(10) SW1 to SW3 open failure

図14の温度の測定装置は、複数の感温素子141が複数の電池1414の表面温度を検出するように、各々の感温素子141を各々の電池1414に熱結合して配設している。感温素子ユニット体143Tにおいては、基板から突出して、感温素子141が設置されている。回路が故障して、感温素子141で温度の検出されない電池は、隣接する電池の温度でリカバリーする。リカバリーにおいては、温度の検出されない電池の温度を、隣接する電池の温度で代用したり、隣接する複数の電池の温度の平均値で代用する。この場合、隣接するひとつまたは2つ以上の電池温度を使用してリカバリーする。さらに、この図は、回路を2ブロックに分割して電池温度を検出する。1ブロックが故障して、電池温度が検出できないとき、別ブロックで検出される電池温度により、故障したブロックの電池温度をリカバリーする。また、各々のブロックの何れかの検出回路1410が故障して電池温度が検出できなくなるときは、隣接する電池温度でリカバリーする。   In the temperature measuring apparatus in FIG. 14, each temperature sensing element 141 is thermally coupled to each battery 1414 so that the plurality of temperature sensing elements 141 detect the surface temperatures of the plurality of batteries 1414. . In the temperature sensing element unit body 143T, the temperature sensing element 141 is installed so as to protrude from the substrate. A battery whose circuit has failed and whose temperature is not detected by the temperature sensing element 141 recovers at the temperature of the adjacent battery. In the recovery, the temperature of the battery whose temperature is not detected is substituted with the temperature of the adjacent battery, or the average value of the temperatures of the plurality of adjacent batteries is substituted. In this case, recovery is performed using one or more adjacent battery temperatures. Furthermore, this figure divides the circuit into two blocks to detect the battery temperature. When one block fails and the battery temperature cannot be detected, the battery temperature of the failed block is recovered by the battery temperature detected by another block. Further, when the detection circuit 1410 in any block fails and the battery temperature cannot be detected, recovery is performed at the adjacent battery temperature.

図13の温度の測定装置は、図15と図16のステップで故障をリカバリーしながら、感温素子131の電気抵抗を介して測定点の温度を検出する。
[n=1のステップ]
このステップにおいて、スイッチSW1〜SW3はすべてオフに切り換えられる。この状態で、中間接続点(C1〜C3)の電圧[e01(Open)、e02(Open)、e03(Open)]を検出する。
The temperature measuring device in FIG. 13 detects the temperature at the measurement point via the electric resistance of the temperature sensing element 131 while recovering from the failure in the steps of FIGS. 15 and 16.
[Step of n = 1]
In this step, the switches SW1 to SW3 are all turned off. In this state, the voltages [e01 (Open), e02 (Open), e03 (Open)] at the intermediate connection points (C1 to C3) are detected.

[n=2のステップ]
このステップにおいて、スイッチSW1〜SW3を順番にオンに切り換えて、中間接続点(C1〜C3)の電圧[e01(Close)、e02(Close)、e03(Close)]を検出する。スイッチSW1をオンにして、他のスイッチSW2、SW3をオフにする状態で、中間接続点(C1)の電圧[e01(Close)]を検出し、スイッチSW2をオンにして、他のスイッチSW1、SW3をオフにする状態で、中間接続点(C2)の電圧[e02(Close)]を検出し、スイッチSW3をオンにして他のスイッチSW1、SW2をオフにする状態で、中間接続点(C3)の電圧[e03(Close)]を検出する。
[Step of n = 2]
In this step, the switches SW1 to SW3 are sequentially turned on to detect voltages [e01 (Close), e02 (Close), e03 (Close)] at the intermediate connection points (C1 to C3). In a state where the switch SW1 is turned on and the other switches SW2 and SW3 are turned off, the voltage [e01 (Close)] at the intermediate connection point (C1) is detected, the switch SW2 is turned on, and the other switches SW1, In the state where SW3 is turned off, the voltage [e02 (Close)] of the intermediate connection point (C2) is detected, and in the state where the switch SW3 is turned on and the other switches SW1, SW2 are turned off, the intermediate connection point (C3 ) Voltage [e03 (Close)].

[n=3〜5のステップ]
このステップで、スイッチSW1をオフにするときとオンにするときの中間接続点(C1)の電圧が電源電圧(Vin)に等しく、かつスイッチSW2をオフにするときとオンにするときの中間接続点(C2)の電圧が電源電圧(Vin)に等しく、なおかつスイッチSW3をオフにするときとオンにするときの中間接続点(C3)の電圧が電源電圧(Vin)に等しいかどうかを判定し、各々の中間接続点(C1、C2、C3)が電源電圧に等しいときは、アース側のI/O線であるGND線(D)の断線と判定し、各々の感温素子131の電気抵抗(Rt1、Rt2、Rt3、Rt4、Rt5、Rt6)をリカバリー必要とする。
[Step n = 3-5]
In this step, the voltage at the intermediate connection point (C1) when the switch SW1 is turned off and on is equal to the power supply voltage (Vin), and the intermediate connection when the switch SW2 is turned off and on. It is determined whether the voltage at the point (C2) is equal to the power supply voltage (Vin) and the voltage at the intermediate connection point (C3) when the switch SW3 is turned off and on is equal to the power supply voltage (Vin). When each of the intermediate connection points (C1, C2, C3) is equal to the power supply voltage, it is determined that the GND line (D) which is an I / O line on the ground side is disconnected, and the electric resistance of each temperature sensing element 131 is determined. (Rt1, Rt2, Rt3, Rt4, Rt5, Rt6) need to be recovered.

[n=6、7のステップ]
n=の3のステップで、スイッチSW1〜SW3をオンオフするときの中間接続点C1〜C3の電圧が電源電圧(Vin)に等しくないとき、このステップにおいて、スイッチSW1〜SW3をオンオフしたときの中間接続点(C1〜C3)の電圧が等しいかどうかを判定する。スイッチSW1〜SW3をオンオフしたときの中間接続点(C1〜C3)の電圧が等しいと、電源132側のI/O線である電源線(A)の断線、またはスイッチ制御線(B)の断線と判定する。
[Steps n = 6, 7]
When the voltage at the intermediate connection points C1 to C3 when the switches SW1 to SW3 are turned on and off is not equal to the power supply voltage (Vin) in the step 3 of n =, the intermediate when the switches SW1 to SW3 are turned on and off in this step It is determined whether or not the voltages at the connection points (C1 to C3) are equal. If the voltages at the intermediate connection points (C1 to C3) when the switches SW1 to SW3 are turned on and off are equal, the power supply line (A) that is the I / O line on the power supply 132 side is disconnected, or the switch control line (B) is disconnected. Is determined.

[n=8、9のステップ]
その後、スイッチSW1をオフとする中間接続点(C1)の電圧[e01(Open)]から感温素子131の電気抵抗(Rt2)を検出する。また、スイッチSW2をオフとする中間接続点(C2)の電圧[e02(Open)]から感温素子131の電気抵抗(Rt4)を検出する。さらに、スイッチSW3をオフとする中間接続点(C3)の電圧[e03(Open)]から感温素子131の電気抵抗(Rt6)を検出する。
感温素子131の電気抵抗(Rt1、Rt3、Rt5)は検出できないのでリカバリー必要とする。
[Steps n = 8, 9]
Thereafter, the electric resistance (Rt2) of the temperature sensing element 131 is detected from the voltage [e01 (Open)] at the intermediate connection point (C1) at which the switch SW1 is turned off. Further, the electric resistance (Rt4) of the temperature sensing element 131 is detected from the voltage [e02 (Open)] at the intermediate connection point (C2) at which the switch SW2 is turned off. Further, the electrical resistance (Rt6) of the temperature sensing element 131 is detected from the voltage [e03 (Open)] at the intermediate connection point (C3) at which the switch SW3 is turned off.
Since the electric resistance (Rt1, Rt3, Rt5) of the temperature sensing element 131 cannot be detected, recovery is required.

[n=10のステップ]
このステップで、スイッチSW1をオフにするときの中間接続点(C1)の電圧[e01(Open)]とスイッチSW1をオンにするときの中間接続点(C1)の電圧[e01(Close)]が等しいかどうかを判定する。
[Step n = 10]
In this step, the voltage [e01 (Open)] at the intermediate connection point (C1) when the switch SW1 is turned off and the voltage [e01 (Close)] at the intermediate connection point (C1) when the switch SW1 is turned on are Determine if they are equal.

[n=11〜13のステップ]
n=10のステップで、スイッチSW1をオンオフにするときの中間接続点(C1)の電圧[e01(Open)、e01(Close)]が等しいとき、さらに、このステップで、この中間接続点(C1)の電圧が電源電圧(Vin)に等しいかどうかを判定する。中間接続点(C1)の電圧が電源電圧(Vin)に等しいときは、検出線であるI/O線(C1)の断線と判定し、中間接続点(C1)に接続された感温素子131の電気抵抗(Rt1、Rt2)をリカバリー必要とする。
[Steps n = 11-13]
When the voltage [e01 (Open), e01 (Close)] at the intermediate connection point (C1) when the switch SW1 is turned on / off is equal in the step of n = 10, this intermediate connection point (C1 ) Is equal to the power supply voltage (Vin). When the voltage at the intermediate connection point (C1) is equal to the power supply voltage (Vin), it is determined that the I / O line (C1) as the detection line is disconnected, and the temperature sensitive element 131 connected to the intermediate connection point (C1). It is necessary to recover the electrical resistance (Rt1, Rt2).

[n=14、15のステップ]
n=11のステップで、中間接続点(C1)の電圧[e01(Open)、e01(Close)]が電源電圧(Vin)に等しくないとき、このステップで、スイッチSW1をオフとする中間接続点(C1)の電圧[e01(Open)]から感温素子131の電気抵抗(Rt2)を検出する。その後、スイッチSW1をオンとする中間接続点(C1)の電圧[e01(Close)]から感温素子131の電気抵抗(Rt1)を検出する。
[Steps n = 14, 15]
In the step of n = 11, when the voltage [e01 (Open), e01 (Close)] of the intermediate connection point (C1) is not equal to the power supply voltage (Vin), the intermediate connection point that turns off the switch SW1 in this step The electric resistance (Rt2) of the temperature sensing element 131 is detected from the voltage [e01 (Open)] of (C1). Thereafter, the electrical resistance (Rt1) of the temperature sensing element 131 is detected from the voltage [e01 (Close)] at the intermediate connection point (C1) that turns on the switch SW1.

[n=16〜18のステップ]
このステップで、検出された感温素子131の電気抵抗(Rt1)が無限大であるかどうかを判定する。この電気抵抗(Rt1)が無限大であるとき、感温素子(Rt1)のオープン故障、またはスイッチSW1のオープン故障と判定し、感温素子131の電気抵抗(Rt1)をリカバリー必要とし、感温素子131の電気抵抗(Rt2)を正常とする。
[Steps n = 16-18]
In this step, it is determined whether or not the detected electric resistance (Rt1) of the temperature sensitive element 131 is infinite. When the electrical resistance (Rt1) is infinite, it is determined that the temperature sensing element (Rt1) is open or the switch SW1 is open, and the electrical resistance (Rt1) of the temperature sensing element 131 needs to be recovered. The electric resistance (Rt2) of the element 131 is set to normal.

[n=19〜21のステップ]
電気抵抗(Rt1)が無限大でないとき、スイッチSW1のショート故障と判定し、電気抵抗(Rt2)の演算結果を破棄し、感温素子131の電気抵抗(Rt1、Rt2)をリカバリー必要とする。
[Steps n = 19-21]
When the electrical resistance (Rt1) is not infinite, it is determined that the switch SW1 is short-circuited, the calculation result of the electrical resistance (Rt2) is discarded, and the electrical resistance (Rt1, Rt2) of the temperature sensing element 131 needs to be recovered.

[n=22〜24ステップ]
n=10のステップで、スイッチSW1をオンオフにするときの中間接続点(C1)の電圧[e01(Open)、e01(Close)]が等しくないとき、このステップで、スイッチSW1をオフにするときの中間接続点(C1)の電圧[e01(Open)]が、電気抵抗(Rt2)がオープン故障したときの中間接続点(C1)の電圧[e0OB]以上かどうかを判定する。中間接続点(C1)の電圧[e01(Open)]が[e0OB]以上であるとき、感温素子(Rt2)のオープン故障と判定し、直列抵抗と並列抵抗の合成抵抗Rxが並列抵抗Raと等しいとする。その後、n=28のステップへ進む。
なお、電気抵抗(Rt2)がオープン故障したときの中間接続点(C1)の電圧[e0OB]は、以下の数15で演算する。
[N = 22 to 24 steps]
When the voltage [e01 (Open), e01 (Close)] at the intermediate connection point (C1) when the switch SW1 is turned on / off in the step n = 10 is not equal, when the switch SW1 is turned off in this step It is determined whether the voltage [e01 (Open)] at the intermediate connection point (C1) is equal to or higher than the voltage [e0OB] at the intermediate connection point (C1) when the electrical resistance (Rt2) has an open failure. When the voltage [e01 (Open)] at the intermediate connection point (C1) is equal to or higher than [e0OB], it is determined that the temperature sensing element (Rt2) is open, and the combined resistance Rx of the series resistance and the parallel resistance is the parallel resistance Ra. Suppose they are equal. Thereafter, the process proceeds to step n = 28.
The voltage [e0OB] at the intermediate connection point (C1) when the electrical resistance (Rt2) has an open failure is calculated by the following equation (15).

Figure 2007085798
Figure 2007085798

[n=25〜27ステップ]
n=22のステップで、中間接続点(C1)の電圧[e01(Open)]が[e0OB]以上でないとき、このステップで、中間接続点(C1)の電圧[e01(Open)]が、電気抵抗(Rt2)がショート故障したときの中間接続点(C1)の電圧[e0SB]以下かどうかを判定する。中間接続点(C1)の電圧[e01(Open)]が[e0SB]以下であるとき、感温素子(Rt2)のショート故障と判定し、直列抵抗と並列抵抗の合成抵抗Rxを直列抵抗Rbと並列抵抗Raから演算する。その後、n=28のステップへ進む。
なお、電気抵抗(Rt2)がショート故障したときの中間接続点(C1)の電圧[e0SB]は、以下の数16で演算する。
[N = 25 to 27 steps]
In step n = 22, when the voltage [e01 (Open)] at the intermediate connection point (C1) is not equal to or higher than [e0OB], the voltage [e01 (Open)] at the intermediate connection point (C1) is It is determined whether the resistance (Rt2) is equal to or lower than the voltage [e0SB] at the intermediate connection point (C1) when a short circuit failure occurs. When the voltage [e01 (Open)] at the intermediate connection point (C1) is equal to or less than [e0SB], it is determined that the temperature sensing element (Rt2) is short-circuited. Calculation is performed from the parallel resistance Ra. Thereafter, the process proceeds to step n = 28.
The voltage [e0SB] at the intermediate connection point (C1) when the electrical resistance (Rt2) is short-circuited is calculated by the following equation (16).

Figure 2007085798
Figure 2007085798

[n=28、29ステップ]
このステップにおいて、スイッチSW1をオンにするときの中間接続点(C1)の電圧[e01(Close)]から感温素子131の電気抵抗(Rt1)を演算し、感温素子131の電気抵抗(Rt1)を正常とし、感温素子131の電気抵抗(Rt2)をリカバリー必要とする。
[N = 28, 29 steps]
In this step, the electric resistance (Rt1) of the temperature sensing element 131 is calculated from the voltage [e01 (Close)] of the intermediate connection point (C1) when the switch SW1 is turned on, and the electric resistance (Rt1) of the temperature sensing element 131 is calculated. ) Is normal, and the electric resistance (Rt2) of the temperature sensitive element 131 needs to be recovered.

[n=30、31のステップ]
n=25のステップで、中間接続点(C1)の電圧[e01(Open)]が[e0SB]以下でないとき、このステップで、スイッチSW1をオフにするときの中間接続点(C1)の電圧[e01(Open)]から感温素子131の電気抵抗(Rt2)を演算する。その後、スイッチSW1をオンにするときの中間接続点(C1)の電圧[e01(Close)]から感温素子131の電気抵抗(Rt1)を演算する。
[Steps n = 30, 31]
In the step of n = 25, when the voltage [e01 (Open)] at the intermediate connection point (C1) is not less than [e0SB], the voltage at the intermediate connection point (C1) when the switch SW1 is turned off in this step [ e01 (Open)], the electric resistance (Rt2) of the temperature sensing element 131 is calculated. Thereafter, the electric resistance (Rt1) of the temperature sensing element 131 is calculated from the voltage [e01 (Close)] at the intermediate connection point (C1) when the switch SW1 is turned on.

[n=32〜35のステップ]
このステップにおいて、検出された感温素子131の電気抵抗(Rt1)が0であるかどうかを判定する。この電気抵抗(Rt1)が0であるとき、感温素子(Rt1)のショート故障と判定し、電気抵抗(Rt1)の演算結果を破棄し、感温素子131の電気抵抗(Rt1)をリカバリー必要とし、感温素子131の電気抵抗(Rt2)を正常とする。
[Steps of n = 32 to 35]
In this step, it is determined whether or not the detected electric resistance (Rt1) of the temperature sensing element 131 is zero. When the electrical resistance (Rt1) is 0, it is determined that the temperature sensing element (Rt1) is short-circuited, the calculation result of the electrical resistance (Rt1) is discarded, and the electrical resistance (Rt1) of the temperature sensing element 131 needs to be recovered. And the electric resistance (Rt2) of the temperature sensitive element 131 is normal.

[n=36のステップ]
n=32のステップで、感温素子131の電気抵抗(Rt1)が0でないとき、感温素子131の電気抵抗(Rt1、Rt2)は正常であると判定する。
[N = 36 steps]
In the step of n = 32, when the electric resistance (Rt1) of the temperature sensing element 131 is not 0, it is determined that the electric resistance (Rt1, Rt2) of the temperature sensing element 131 is normal.

[n=37のステップ]
その後、n=10のステップに戻って、回路B、Cについても同様のステップを繰り返して、中間接続点(C1、C2)の電圧から感温素子131の電気抵抗(Rt3、Rt4、Rt5、Rt6)が正常であるか、リカバリー必要であるかを判定する。
[Step n = 37]
Thereafter, returning to the step of n = 10, the same steps are repeated for the circuits B and C, and the electric resistance (Rt3, Rt4, Rt5, Rt6) of the temperature sensing element 131 is determined from the voltage at the intermediate connection point (C1, C2). ) Is normal or recovery is necessary.

図17の温度の測定装置は、図18と図19のステップで故障をリカバリーしながら、感温素子171の電気抵抗を介して測定点の温度を検出する。
[n=1のステップ]
このステップにおいて、スイッチSW1〜SW3はすべてオフに切り換えられる。この状態で、中間接続点(C1〜C3)の電圧[e01(Open)、e02(Open)、e03(Open)]を検出する。
The temperature measuring device in FIG. 17 detects the temperature of the measurement point via the electric resistance of the temperature sensitive element 171 while recovering from the failure in the steps of FIGS. 18 and 19.
[Step of n = 1]
In this step, the switches SW1 to SW3 are all turned off. In this state, the voltages [e01 (Open), e02 (Open), e03 (Open)] at the intermediate connection points (C1 to C3) are detected.

[n=2のステップ]
このステップにおいて、スイッチSW1〜SW3を順番にオンに切り換えて、中間接続点(C1〜C3)の電圧[e01(Close)、e02(Close)、e03(Close)]を検出する。スイッチSW1をオンにして、他のスイッチSW2、SW3をオフにする状態で、中間接続点(C1)の電圧[e01(Close)]を検出し、スイッチSW2をオンにして、他のスイッチSW1、SW3をオフにする状態で、中間接続点(C2)の電圧[e02(Close)]を検出し、スイッチSW3をオンにして、他のスイッチSW1、SW2をオフにする状態で、中間接続点(C3)の電圧[e03(Close)]を検出する。
[Step of n = 2]
In this step, the switches SW1 to SW3 are sequentially turned on to detect voltages [e01 (Close), e02 (Close), e03 (Close)] at the intermediate connection points (C1 to C3). In a state where the switch SW1 is turned on and the other switches SW2 and SW3 are turned off, the voltage [e01 (Close)] at the intermediate connection point (C1) is detected, the switch SW2 is turned on, and the other switches SW1, In the state where SW3 is turned off, the voltage [e02 (Close)] at the intermediate connection point (C2) is detected, the switch SW3 is turned on, and the other switches SW1 and SW2 are turned off. C3) voltage [e03 (Close)] is detected.

[n=3〜5のステップ]
このステップで、スイッチSW1をオフにするときとオンにするときの中間接続点(C1)の電圧が電源電圧(Vin)に等しく、かつスイッチSW2をオフにするときとオンにするときの中間接続点(C2)の電圧が電源電圧(Vin)に等しく、なおかつスイッチSW3をオフにするときとオンにするときの中間接続点(C3)の電圧が電源電圧(Vin)に等しいかどうかを判定し、各々の中間接続点(C1〜C3)が電源電圧(Vin)に等しいときは、アース側のI/O線であるGND線(D)の断線と判定し、各々の感温素子171の電気抵抗(Rt1、Rt2、Rt3、Rt4、Rt5、Rt6)をリカバリー必要とする。
[Step n = 3-5]
In this step, the voltage at the intermediate connection point (C1) when the switch SW1 is turned off and on is equal to the power supply voltage (Vin), and the intermediate connection when the switch SW2 is turned off and on. It is determined whether the voltage at the point (C2) is equal to the power supply voltage (Vin) and the voltage at the intermediate connection point (C3) when the switch SW3 is turned off and on is equal to the power supply voltage (Vin). When each of the intermediate connection points (C1 to C3) is equal to the power supply voltage (Vin), it is determined that the GND line (D) which is an I / O line on the ground side is disconnected, and the electric power of each temperature sensing element 171 is determined. Resistors (Rt1, Rt2, Rt3, Rt4, Rt5, Rt6) need to be recovered.

[n=6、7のステップ]
n=3のステップで、スイッチSW1〜SW3をオンオフするときの中間接続点(C1〜C3)の電圧が電源電圧(Vin)に等しくないとき、このステップにおいて、スイッチSW1〜SW3をオンオフしたときの中間接続点(C1〜C3)の電圧が等しいかどうかを判定する。スイッチSW1〜SW3をオンオフしたときの中間接続点(C1〜C3)の電圧が等しいと、スイッチ制御線(B)の断線と判定する。
[Steps n = 6, 7]
When the voltage at the intermediate connection point (C1 to C3) when turning on and off the switches SW1 to SW3 is not equal to the power supply voltage (Vin) in the step of n = 3, when the switches SW1 to SW3 are turned on and off in this step It is determined whether or not the voltages at the intermediate connection points (C1 to C3) are equal. If the voltages at the intermediate connection points (C1 to C3) when the switches SW1 to SW3 are turned on and off are equal, it is determined that the switch control line (B) is disconnected.

[n=8、9のステップ]
n=6のステップで、スイッチSW1〜SW3をオンオフしたときの中間接続点(C1〜C3)の電圧が等しくないとき、このステップにおいて、スイッチSW1〜SW3をオフしたときの中間接続点(C1〜C3)の電圧が0であるかどうかを判定する。スイッチSW1〜SW3をオフしたときの中間接続点(C1〜C3)の電圧が全て0であると、電源側のI/O線である電源線(A)の断線と判定する。
[Steps n = 8, 9]
When the voltages of the intermediate connection points (C1 to C3) when the switches SW1 to SW3 are turned on and off are not equal in the step n = 6, the intermediate connection points (C1 to C1 to when the switches SW1 to SW3 are turned off in this step) It is determined whether the voltage of C3) is zero. If the voltages at the intermediate connection points (C1 to C3) when the switches SW1 to SW3 are turned off are all 0, it is determined that the power supply line (A) that is the I / O line on the power supply side is disconnected.

[n=10のステップ]
このステップで、スイッチSW1をオフにするときの中間接続点(C1)の電圧[e01(Open)]とスイッチSW1をオンにするときの中間接続点(C1)の電圧[e01(Close)]が等しいかどうかを判定する。
[Step n = 10]
In this step, the voltage [e01 (Open)] at the intermediate connection point (C1) when the switch SW1 is turned off and the voltage [e01 (Close)] at the intermediate connection point (C1) when the switch SW1 is turned on are Determine if they are equal.

[n=11、12のステップ]
n=10のステップで、スイッチSW1をオンオフにするときの中間接続点(C1)の電圧[e01(Open)、e01(Close)]が等しいとき、SW1のショート故障、またはSW1のオープン故障と判定し、中間接続点(C1)に接続された感温素子131の電気抵抗(Rt1、Rt2)をリカバリー必要とする。
[Steps n = 11, 12]
In step n = 10, when the voltage [e01 (Open), e01 (Close)] at the intermediate connection point (C1) when the switch SW1 is turned on / off is equal, it is determined that SW1 is short or SW1 is open. The electrical resistance (Rt1, Rt2) of the temperature sensing element 131 connected to the intermediate connection point (C1) needs to be recovered.

[n=13、14のステップ]
n=10のステップで、スイッチSW1をオンオフにするときの中間接続点(C1)の電圧[e01(Open)、e01(Close)]が等しくないとき、このステップにおいて、中間接続点(C1)の電圧[e01(Close)]が電源電圧(Vin)に等しいかどうかを判定する。中間接続点(C1)の電圧[e01(Close)]が電源電圧(Vin)に等しいとき、検出線であるI/O線(C1)の断線と判定し、中間接続点(C1)に接続された感温素子131の電気抵抗(Rt1、Rt2)をリカバリー必要とする。
[Steps n = 13 and 14]
When the voltage [e01 (Open), e01 (Close)] at the intermediate connection point (C1) when the switch SW1 is turned on / off is not equal in the step of n = 10, in this step, the intermediate connection point (C1) It is determined whether or not the voltage [e01 (Close)] is equal to the power supply voltage (Vin). When the voltage [e01 (Close)] at the intermediate connection point (C1) is equal to the power supply voltage (Vin), it is determined that the I / O line (C1) that is the detection line is disconnected, and is connected to the intermediate connection point (C1). The electrical resistance (Rt1, Rt2) of the temperature sensitive element 131 needs to be recovered.

[n=15〜18のステップ]
n=13のステップで、中間接続点(C1)の電圧[e01(Close)]が電源電圧(Vin)に等しくないとき、このステップで、スイッチSW1をオフにするときの中間接続点(C1)の電圧[e01(Close)]が0であるかどうかを判定する。中間接続点(C1)の電圧[e01(Close)]が0であるとき、感温素子(Rt1)のオープン故障と判定し、中間接続点(C1)の電圧[e01(Open)、e01(Close)]から感温素子131の電気抵抗(Rt1、Rt2)を演算する。感温素子131の電気抵抗(Rt1)をリカバリー必要とし、感温素子131の電気抵抗(Rt2)を正常とする。
[Steps n = 15-18]
In the step of n = 13, when the voltage [e01 (Close)] of the intermediate connection point (C1) is not equal to the power supply voltage (Vin), the intermediate connection point (C1) when the switch SW1 is turned off in this step It is determined whether or not the voltage [e01 (Close)] is zero. When the voltage [e01 (Close)] at the intermediate connection point (C1) is 0, it is determined that the temperature sensing element (Rt1) has an open failure, and the voltage at the intermediate connection point (C1) [e01 (Open), e01 (Close) )], The electric resistance (Rt1, Rt2) of the temperature sensing element 131 is calculated. The electric resistance (Rt1) of the temperature sensitive element 131 needs to be recovered, and the electric resistance (Rt2) of the temperature sensitive element 131 is made normal.

[n=19のステップ]
n=15のステップで、中間接続点(C1)の電圧[e01(Close)]が0でないとき、このステップにおいて、中間接続点(C1)の電圧[e01(Open)、e01(Close)]から感温素子131の電気抵抗(Rt1、Rt2)を演算する。
[Step n = 19]
In the step of n = 15, when the voltage [e01 (Close)] at the intermediate connection point (C1) is not 0, in this step, from the voltage [e01 (Open), e01 (Close)] at the intermediate connection point (C1). The electric resistance (Rt1, Rt2) of the temperature sensitive element 131 is calculated.

[n=20、21のステップ]
このステップにおいて、検出された感温素子131の電気抵抗(Rt1)が0であるかどうかを判定し、電気抵抗(Rt1)が0であるとき、感温素子(Rt1)のショート故障と判定し、感温素子131の電気抵抗(Rt1)をリカバリー必要とし、感温素子131の電気抵抗(Rt2)を正常とする。
[Steps n = 20, 21]
In this step, it is determined whether or not the detected electric resistance (Rt1) of the temperature sensing element 131 is zero. When the electric resistance (Rt1) is zero, it is determined that the temperature sensing element (Rt1) is short-circuited. The electric resistance (Rt1) of the temperature sensitive element 131 needs to be recovered, and the electric resistance (Rt2) of the temperature sensitive element 131 is made normal.

[n=22〜24のステップ]
n=20のステップにおいて、検出された感温素子131の電気抵抗(Rt1)が0でないとき、このステップにおいて、検出された感温素子131の電気抵抗(Rt2)が0であるかどうかを判定する。電気抵抗(Rt2)が0であるとき、感温素子(Rt2)のショート故障と判定し、感温素子131の電気抵抗(Rt1)を正常とし、感温素子131の電気抵抗(Rt2)をリカバリー必要とする。
[Steps n = 22-24]
In the step of n = 20, when the detected electric resistance (Rt1) of the temperature sensitive element 131 is not 0, in this step, it is determined whether or not the detected electric resistance (Rt2) of the temperature sensitive element 131 is 0. To do. When the electrical resistance (Rt2) is 0, it is determined that the temperature sensing element (Rt2) is short-circuited, the electrical resistance (Rt1) of the temperature sensing element 131 is normal, and the electrical resistance (Rt2) of the temperature sensing element 131 is recovered. I need.

[n=25、26のステップ]
n=22のステップにおいて、検出された感温素子131の電気抵抗(Rt2)が0でないとき、このステップにおいて、検出された感温素子131の電気抵抗(Rt2)が無限大であるかどうかを判定する。この電気抵抗(Rt2)が無限大であるとき、感温素子(Rt2)のオープン故障と判定し、感温素子131の電気抵抗(Rt1)を正常とし、感温素子131の電気抵抗(Rt2)をリカバリー必要とする。
[Steps n = 25, 26]
In the step of n = 22, when the detected electric resistance (Rt2) of the temperature sensitive element 131 is not 0, in this step, it is determined whether or not the detected electric resistance (Rt2) of the temperature sensitive element 131 is infinite. judge. When the electrical resistance (Rt2) is infinite, it is determined that the temperature sensing element (Rt2) is open, the electrical resistance (Rt1) of the temperature sensing element 131 is normal, and the electrical resistance (Rt2) of the temperature sensing element 131 is normal. Need recovery.

[n=27のステップ]
電気抵抗(Rt2)が無限大でないとき、感温素子131の電気抵抗(Rt1、Rt2)は正常と判定する。
[Step n = 27]
When the electrical resistance (Rt2) is not infinite, it is determined that the electrical resistance (Rt1, Rt2) of the temperature sensing element 131 is normal.

[n=28のステップ]
その後、n=10のステップに戻って、回路B、Cについても同様のステップを繰り返して、感温素子131の電気抵抗(Rt3、Rt4、Rt5、Rt6)が正常であるか、リカバリー必要であるかを判定する。
[Step n = 28]
Thereafter, returning to the step of n = 10, the same steps are repeated for the circuits B and C, and the electrical resistance (Rt3, Rt4, Rt5, Rt6) of the temperature sensing element 131 is normal or needs to be recovered. Determine whether.

従来の温度の測定装置の回路図である。It is a circuit diagram of the conventional temperature measuring apparatus. 本発明との比較のための回路図であり、図1の回路で多数の測定点の温度を検出する測定装置の回路図である。FIG. 2 is a circuit diagram for comparison with the present invention, and is a circuit diagram of a measuring apparatus for detecting temperatures at a large number of measurement points in the circuit of FIG. 1. 感温素子の温度−電気抵抗の特性を示すグラフである。It is a graph which shows the characteristic of the temperature-electric resistance of a temperature sensing element. 本発明の一実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning one Example of this invention. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 本発明の他の実施例にかかる温度の測定装置の概略構成図である。It is a schematic block diagram of the temperature measuring apparatus concerning the other Example of this invention. 図13に示す温度の測定装置で感温素子の電気抵抗を介して測定点の温度を検出するフローチャートである。It is a flowchart which detects the temperature of a measurement point via the electrical resistance of a temperature sensing element with the temperature measuring apparatus shown in FIG. 図13に示す温度の測定装置で感温素子の電気抵抗を介して測定点の温度を検出するフローチャートである。It is a flowchart which detects the temperature of a measurement point via the electrical resistance of a temperature sensing element with the temperature measuring apparatus shown in FIG. 本発明の他の実施例にかかる温度の測定装置の回路図である。It is a circuit diagram of the temperature measuring apparatus concerning the other Example of this invention. 図17に示す温度の測定装置で感温素子の電気抵抗を介して測定点の温度を検出するフローチャートである。It is a flowchart which detects the temperature of a measurement point via the electrical resistance of a temperature sensing element with the temperature measuring apparatus shown in FIG. 図17に示す温度の測定装置で感温素子の電気抵抗を介して測定点の温度を検出するフローチャートである。It is a flowchart which detects the temperature of a measurement point via the electrical resistance of a temperature sensing element with the temperature measuring apparatus shown in FIG.

符号の説明Explanation of symbols

1、51、61、71、81、91、101、111、121、131、141、171…感温素子
2、52、62、72、82、92、112、122、132、172…電源
3、53、63、73、83、93、103、113、123、133、143、173…感温素子ユニット
3T、53T、63T、73T、83T、93T、103T、113T、123T、133T、143T、173T…感温素子ユニット体
4、54、64、74、84、94、104、114、124、134、174…基準抵抗
5、55、65、75、85、95、115、125、135、175…スイッチ
6、56、66、76、86、96、106、116、126、176…中間接続点
97…マルチプレクサ
8、58、68、78、88、98、108、118、128、138、178…I/O線(=電気接続線)
109…電源線
10、510、610、710、810、910、1010、1110、1210、1310、1410、1710…検出回路
1111、1211、1311、1711…故障検出回路
1112、1212、1312、1712…直列抵抗
1113、1213、1313、1713…並列抵抗
1414…電池
201…感温素子
202…電源
203T…感温素子ユニット体
204…基準抵抗
207…マルチプレクサ
208…I/O線(=電気接続線)
2010…検出回路
1, 51, 61, 71, 81, 91, 101, 111, 121, 131, 141, 171 ... temperature sensing element 2, 52, 62, 72, 82, 92, 112, 122, 132, 172 ... power supply 3, 53, 63, 73, 83, 93, 103, 113, 123, 133, 143, 173 ... Temperature sensing element unit 3T, 53T, 63T, 73T, 83T, 93T, 103T, 113T, 123T, 133T, 143T, 173T ... Temperature sensing element unit body 4, 54, 64, 74, 84, 94, 104, 114, 124, 134, 174 ... reference resistance 5, 55, 65, 75, 85, 95, 115, 125, 135, 175 ... switch 6, 56, 66, 76, 86, 96, 106, 116, 126, 176 ... Intermediate connection point 97 ... Multiplexer 8, 58, 68, 78, 88 98,108,118,128,138,178 ... I / O line (= electrical connections)
109: Power supply line 10, 510, 610, 710, 810, 910, 1010, 1110, 1210, 1310, 1410, 1710 ... Detection circuit 1111, 1211, 1311, 1711 ... Failure detection circuit 1112, 1212, 1312, 1712 ... Series Resistance 1113, 1213, 1313, 1713 ... Parallel resistance 1414 ... Battery 201 ... Temperature sensing element 202 ... Power source 203T ... Temperature sensing element unit body 204 ... Reference resistance 207 ... Multiplexer 208 ... I / O line (= electrical connection line)
2010 ... Detection circuit

Claims (8)

温度によって抵抗値が変化する複数の感温素子を基準抵抗を介して電源に接続しており、電源から基準抵抗を介して感温素子に通電して、感温素子の電圧を検出し、検出された電圧から感温素子の電気抵抗を検出し、電気抵抗から複数の測定点の温度を検出する温度の測定装置において、
2つ以上の感温素子を直列に接続して感温素子ユニットとして、感温素子ユニットの端部と中間接続点のいずれか又は両方を基準抵抗とスイッチを介して電源に接続しており、
スイッチをオンオフに切り換えて、中間接続点の電圧を検出し、検出された電圧から感温素子ユニットを構成する各々の感温素子の電気抵抗を検出し、電気抵抗から測定点の温度を検出するようにしてなる温度の測定装置。
Multiple temperature-sensitive elements whose resistance values change with temperature are connected to the power supply via a reference resistor, and the temperature-sensitive element is energized from the power supply via the reference resistance to detect the voltage of the temperature-sensitive element and detect it In the temperature measuring device that detects the electric resistance of the temperature sensing element from the voltage that has been detected, and detects the temperature of a plurality of measurement points from the electric resistance,
Two or more temperature sensing elements are connected in series as a temperature sensing element unit, and either or both of the end of the temperature sensing element unit and the intermediate connection point are connected to a power source via a reference resistor and a switch,
Switch the switch on and off, detect the voltage at the intermediate connection point, detect the electrical resistance of each temperature sensing element that makes up the temperature sensing element unit from the detected voltage, and detect the temperature at the measurement point from the electrical resistance A temperature measuring device formed as described above.
1つ以上の感温素子ユニットで構成される感熱素子ユニット体を備え、該感熱素子ユニット体と検出回路とは、複数の電気接続線にて結線されている請求項1に記載される温度の測定装置。   The thermosensitive element unit body comprised of one or more thermosensitive element units, and the thermosensitive element unit body and the detection circuit are connected by a plurality of electrical connection lines. measuring device. 感温素子ユニットの中間接続点とスイッチとの間にマルチプレクサを接続して、マルチプレクサの出力側をスイッチと基準抵抗を介して電源に接続している請求項1に記載される温度の測定装置。   2. The temperature measuring apparatus according to claim 1, wherein a multiplexer is connected between the intermediate connection point of the temperature sensing element unit and the switch, and the output side of the multiplexer is connected to a power source via the switch and a reference resistor. 2つの感温素子を直列に接続して、感温素子の中間接続点の電圧を検出する請求項1に記載される温度の測定装置。   The temperature measuring device according to claim 1, wherein two temperature sensitive elements are connected in series to detect a voltage at an intermediate connection point of the temperature sensitive elements. 全体の感温素子を、互いに直列に接続している2つ以上の感温素子からなる感温素子ユニットに分割しており、各々の感温素子ユニットの中間接続点をマルチプレクサの入力側に接続しており、マルチプレクサで感温素子ユニットの中間接続点を切り換えて、中間接続点の電圧を検出する請求項1に記載される温度の測定装置。   The entire temperature sensing element is divided into temperature sensing element units consisting of two or more temperature sensing elements connected in series, and the intermediate connection point of each temperature sensing element unit is connected to the input side of the multiplexer The temperature measuring device according to claim 1, wherein a voltage at the intermediate connection point is detected by switching an intermediate connection point of the temperature sensing element unit with a multiplexer. 全体の感温素子を、互いに直列に接続している2つ以上の感温素子からなる感温素子ユニットに分割すると共に、各々の感温素子ユニットの両端と中間接続点を電気接続線であるI/O線でもって、中間接続点の電圧を検出して感温素子の温度を検出する検出回路に接続しており、各々の感温素子ユニットは両端を接続して互いに並列に接続しており、並列接続される感温素子ユニットの両端を共通の電源線でもって検出回路に接続している請求項1に記載される温度の測定装置。   The entire temperature sensing element is divided into two or more temperature sensing element units connected in series with each other, and both ends and intermediate connection points of each temperature sensing element unit are electrical connection lines. I / O lines are connected to a detection circuit for detecting the temperature of the temperature sensing element by detecting the voltage at the intermediate connection point, and each temperature sensing element unit is connected in parallel by connecting both ends. The temperature measuring device according to claim 1, wherein both ends of the temperature-sensitive element units connected in parallel are connected to the detection circuit through a common power line. 感温素子に直列抵抗と並列抵抗からなる故障検出回路を接続している請求項1に記載される温度の測定装置。   The temperature measuring device according to claim 1, wherein a failure detection circuit including a series resistor and a parallel resistor is connected to the temperature sensitive element. 複数の感温素子が複数の電池の表面温度を検出するように、各々の感温素子を各々の電池に熱結合して配設しており、故障した感温素子で温度が検出される電池温度を、隣接する電池の温度でリカバリーする請求項1に記載される温度の測定装置。
A battery in which each temperature sensing element is thermally coupled to each battery so that the plurality of temperature sensing elements detect the surface temperature of the plurality of batteries, and the temperature is detected by the failed temperature sensing element. The temperature measuring device according to claim 1, wherein the temperature is recovered by the temperature of an adjacent battery.
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