WO2016194368A1 - 実装基板及び蓄電池の電流検出装置 - Google Patents
実装基板及び蓄電池の電流検出装置 Download PDFInfo
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- WO2016194368A1 WO2016194368A1 PCT/JP2016/002631 JP2016002631W WO2016194368A1 WO 2016194368 A1 WO2016194368 A1 WO 2016194368A1 JP 2016002631 W JP2016002631 W JP 2016002631W WO 2016194368 A1 WO2016194368 A1 WO 2016194368A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/02—Measuring effective values, i.e. root-mean-square values
- G01R19/03—Measuring effective values, i.e. root-mean-square values using thermoconverters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a mounting substrate and a current detection device for a storage battery system.
- FIG. 10 shows a circuit configuration of a cell sense line of an existing storage battery system.
- the cell sense line connecting each battery cell (hereinafter cell) b1 to b4 and the monitoring IC (Integrated Circuit) has a current fuse for short-circuit protection for each cell and a current detection resistor for monitoring the cell current. Rs and a current detection circuit are mounted.
- the outputs of the cells b1 to b4 are connected to an output line to the load in parallel with the cell sense line, but are omitted in FIG.
- FIG. 11 shows the configuration of the current detection circuit of FIG.
- the current detection circuit detects the potential difference generated in the shunt resistor (current detection resistor) Rs provided in the cell sense line by a circuit composed of a plurality of resistors and an operational amplifier, and the current calculation unit generates the potential difference generated in Rs.
- the current value of the current I OUT flowing from the V OUT to the cell sense line is derived.
- JP 2003-168488 A Japanese Utility Model Publication No. 63-3174 (specification of Japanese Utility Model Application No. 61-96487)
- the number of circuits for monitoring these increases.
- a current detection resistor and a detection circuit are required.
- the detection circuit is required to have a high withstand voltage, and it is necessary to add a voltage dividing circuit to read the high voltage. Also tended to be large.
- An object of the present invention is to provide a mounting board and a storage battery current measuring device that solve the above-described problems and reduce size and cost.
- the present invention is a mounting board comprising a heat generating element, a temperature sensor for measuring a temperature of the heat generating element, and a slit surrounding at least a part of the heat generating element and the temperature sensor.
- the present invention is also a storage battery current measuring device for measuring current flowing in a plurality of cell sense circuits for measuring voltages of a plurality of storage batteries, wherein the plurality of cell sense circuits measure a temperature of the heat generating element and the heat generating element. And a temperature calculation unit, provided on a mounting substrate having a slit surrounding at least a part of the heat generating element and the temperature sensor, and comprising a current calculation unit for obtaining the current based on a measurement result of the temperature sensor.
- This is a current measuring device for a storage battery.
- FIG. 3 is a block diagram of a circuit that calculates a value of a current flowing through a cell sense line according to the first embodiment of the present invention. It is a figure which shows the layout on the board
- DELTA rising temperature
- FIG. 1 is a plan view showing a layout of pattern elements formed on a mounting substrate according to the first embodiment of the present invention.
- the pattern elements 10 partially narrowed in the wiring width are inserted in series in the cell sense line (wiring A) of each cell.
- the pattern element 10 is an existing fuse for protection against a short circuit.
- the pattern element 10 uses an existing fuse for both temperature detection and current value detection.
- the pattern element 10 is sandwiched between the slits 20, and a temperature sensor 30 for measuring the pattern element temperature is formed in the area of the pattern element 10 sandwiched between the slits 20. The movement of heat is suppressed by sandwiching the pattern element 10 and the temperature sensor 30 between the two slits 20.
- the pattern element 10, the slit 20, and the temperature sensor 30 are collectively referred to as a pattern element set 1. Although only one pattern element set 1 is shown in FIG. 1, it is provided for each cell sense line.
- the printed board 100 is a glass epoxy board having a thickness of 1.6 mm. Copper foil is used for the pattern element, the thickness is 50 ⁇ m, the length is 2 mm, the width is 120 ⁇ m, and the current capacity I (th) is 7 A or more.
- the wiring A is also a copper foil, the thickness is 50 ⁇ m, which is the same as the pattern element 10, and the width is 500 ⁇ m.
- the temperature sensor 30 is an NTC type (Negative-Temperature-Coefficient) thermistor, and uses NCP18XH103F03RB manufactured by Murata Manufacturing Co., Ltd. The length of the temperature sensor is 1.6mm and the width is 0.8mm.
- the slit 20 is a part of the substrate cut out by router processing and penetrated to the back surface.
- the width is 2mm and the length is 4.8mm. In this embodiment, nothing is filled in the slit 20 and only air is present, but a heat shielding material may be filled.
- Two slits 20 surround the pattern element 10 and the temperature sensor 30.
- the slit 20 surrounds most of the temperature sensor 30 and the pattern element 10 to suppress heat transfer.
- the wiring A into which the pattern element 10 is inserted is a part of the cell sense line.
- the wiring B connects the temperature sensor 30 and a current calculation unit described later.
- the pattern element set 1 including the pattern element 10, the slit 20, and the temperature sensor 30 is arranged in the cell sense line of each cell.
- Each pattern element temperature measurement temperature sensor 30 is connected to a current calculation unit, and a temperature sensor 80 for measuring the temperature of the printed circuit board 100 is connected to the current calculation unit.
- the current calculation unit has a function of calculating the rising temperature of the pattern element from the temperature of the pattern element and the temperature of the substrate, and a function of calculating the rising temperature per unit time of the pattern element. Furthermore, the current calculation unit has a table for determining a current value flowing through the pattern element from the substrate temperature, the rising temperature of the pattern element, and the rising temperature per unit time of the pattern element. (Description of operation) In the present embodiment, the wiring width of the cell sense line is partially narrowed to make the pattern element 10, the wiring resistance of the pattern element 10 is increased, and heat generation (Joule heat) when energizing the pattern element 10 is promoted.
- the wiring pattern width, thickness, length, and conductivity are set so that the current capacity takes a predetermined value I (th), and the pattern element 10 exceeds I (th). When the current flows, the pattern element 10 is melted.
- FIG. 4 shows a block diagram of a circuit for calculating the value of the current flowing through each cell sense line 40.
- the cell sense line 40 connected to the cell, the pattern element set 1 (the slit 20 is omitted), the current calculation unit 50, the monitoring IC 60, the thermal isolation region 70, and the temperature sensor 80 for measuring the substrate temperature are provided on the printed circuit board 100. Is arranged. These constitute a storage module battery module monitoring circuit.
- the outputs of the cells b1 to b4 are connected to the output line to the load in parallel with the cell sense line, but are omitted in FIG.
- the output of the temperature sensor 30 of each pattern element set 1 provided in the middle of the cell sense line 40 of each cell b1 to b4 is input to the current calculation unit 50.
- Each cell sense line 40 is connected to the monitoring IC 60, and the monitoring IC 60 monitors the operation of each of the cells b1 to b4.
- FIG. 5 shows a layout of the thermal isolation region 70 in which the substrate temperature measuring temperature sensor 80 is arranged.
- a thermal isolation region 70 in which the influence of the temperature change of the external component is suppressed is formed by the slit 23 in a region where no component is mounted on the substrate 100, and a substrate temperature measuring temperature sensor 80 is disposed there.
- the slit 23 surrounds most of the periphery of the substrate temperature measuring temperature sensor 80.
- a wiring C is provided in order to input the output of the temperature sensor 80 for substrate temperature measurement to the current calculator 50.
- the slit 23 may be formed in the same manner as the slit 20 used in the pattern element set 1.
- FIG. 6 shows a calculation image of the temperature change of the pattern element and the rising temperature ⁇ T / t per unit time.
- the current calculation unit calculates the rising temperature ⁇ T of the pattern element by subtracting the temperature detected by the substrate temperature measuring temperature sensor from the detected temperature of the pattern element. Further, the rising temperature ⁇ T / t per unit time is obtained from the following equation using the rising temperature ⁇ Tt1 acquired at time t1 and the rising temperature ⁇ Tt2 acquired at time t2.
- ⁇ T / t ( ⁇ Tt2- ⁇ Tt1) / (t2-t1) Note that when obtaining the temperature increase ⁇ T / t per unit time, the measurement interval t2-t1 always takes a predetermined value.
- FIG. 7 shows an image of the current calculation table of the current calculation unit 60.
- the current calculation unit 60 includes a table 200 for calculating a current value from ⁇ T and ⁇ T / t for each substrate temperature measured by the substrate temperature measuring temperature sensor.
- the resistance of the conductor constituting the pattern element 10 has temperature characteristics.
- the table 200 is measured in advance in increments of 1 ° C. of the substrate temperature and stored in the current calculation unit 60.
- the pattern element 10 has a higher temperature than the surroundings. Therefore, Joule heat generated in the pattern element 10 is partially radiated to the wiring A.
- the slit 20 does not completely thermally insulate the periphery of the pattern element 10, Joule heat is partially dissipated to the printed circuit board 100.
- the characteristics of the current value and temperature, that is, the table 200 is determined by the balance between the heat radiation and the Joule heat. That is, the table 200 incorporates the above-described influence of heat dissipation.
- the pattern element 10 When a current exceeding I (th) flows through the pattern element 10, the pattern element 10 is blown (open mode). Due to the fusing, energization of overcurrent to the cell sense line 40 of the subsequent cells is avoided.
- the pattern element and the temperature sensor are thermally insulated from the surrounding substrate by slits, and the pattern element has a structure that is not easily affected by temperature changes of external components. Therefore, the temperature of the pattern element is a temperature obtained by adding the temperature rise due to energization from the substrate temperature. For this reason, it is possible to detect the current by calculating the temperature rise due to energization from the temperature of the pattern element and the substrate temperature.
- the detection circuit constituted by a plurality of resistors and amplifiers as shown in FIG. 11 can be replaced with one temperature sensor. Furthermore, safe current detection is performed while maintaining insulation from the measurement line without adding a circuit for detecting a current in a high voltage band or adding an expensive current detection IC corresponding to a high voltage. In this way, according to the present embodiment, current detection and short circuit protection for a power storage system can be realized at a small size / low cost.
- Patent Document 2 discloses a printed circuit board having a pattern fuse composed of a copper foil portion, and a heat blocking portion provided along the shape of the pattern fuse.
- the heat shield is a slit or hole provided in the substrate. The following is stated in the example column of this patent document. Since slits and holes, or slits are provided on both sides of the copper foil part, heat will not be conducted from this copper foil part to the printed circuit board even if a current that exceeds the rating slightly flows through the copper foil part. The fusing time is shortened accordingly, and the printed circuit board is less likely to burn.
- slits are formed on both sides of a narrow copper foil portion that is a fuse.
- this slit is intended for heat insulation when the fuse is blown, and is not intended for heat insulation in temperature measurement.
- 8A to 8D show layouts of the pattern elements A, D, and E on the multilayer printed board 110 (hereinafter abbreviated as multilayer board) according to the present embodiment.
- 9A and 9B are sectional views of the multilayer substrate 110 including the pattern elements A, D, and E.
- the pattern elements with partially narrowed wiring widths are inserted in series in each cell sense line, similar to the first embodiment. is there.
- the pattern elements 10 are arranged adjacent to each other in a plurality of units. This is referred to as an adjacent pattern element group.
- the adjacent pattern element group is mostly surrounded by a slit 25 penetrating the multilayer substrate 110, and a temperature sensor for measuring the adjacent pattern element group temperature is provided on the back surface of the multilayer substrate in the area of each adjacent pattern element group surrounded by the slit 25.
- One 35 is provided.
- the temperature sensor 35 for measuring the adjacent pattern element group temperature is connected to the current calculation unit, and further, similarly to the first embodiment, a temperature sensor for measuring the temperature of the printed circuit board is connected to the current calculation unit.
- the current calculation unit has a function of calculating the rising temperature of the adjacent pattern element group from the temperature of the adjacent pattern element group and the substrate temperature, and a function of calculating the rising temperature per unit time of the adjacent pattern element group. Furthermore, the current calculation unit has a table for determining a current value flowing through the adjacent pattern element group from the substrate temperature, the rising temperature of the adjacent pattern element group, and the rising temperature per unit time of the adjacent pattern element group.
- the multilayer substrate 110 of this embodiment is a four-layer substrate.
- the pattern element A, the pattern element D, and the pattern element E which are three pattern elements inserted into the wiring A, the wiring D, and the wiring E that are part of different cell sense lines, are adjacent to each other.
- Three pattern elements are surrounded by slits 25 from both sides. Further, in order to further suppress heat transfer inside and outside the slit, three pattern elements are arranged on the first layer corresponding to the surface layer, and the temperature sensor 35 and the wiring B connecting the temperature sensor 35 and the current calculation unit are arranged on the back surface of the multilayer substrate. It arrange
- both ends of each of the three pattern elements are allocated to the first layer, the second layer corresponding to the inner layer, and the third layer using the through holes 90, and each of the three pattern elements is shown in the cross section B of FIG.
- the pattern elements A, D and E are all arranged so as to be exposed on the surface layer (first layer), and when a current exceeding I (th) flows through these pattern elements, the respective pattern elements are fused.
- This embodiment is the same as the first embodiment, except that the layout of the pattern elements on the multilayer substrate 110 and the temperature changes of the three pattern elements A, D, and E are detected by one temperature sensor. In this way, current changes in a plurality of pattern elements can be detected together and monitored collectively.
- This embodiment can be applied to, for example, a case where a plurality of monitoring ICs are prepared, a plurality of cell sense lines are monitored by one monitoring IC, and a cell sense line abnormality is detected for each monitoring IC. Further, current detection and short circuit protection can be realized with a narrow pattern element area and a small temperature sensor. [Other embodiments] In the first and second embodiments, a short-circuit protection area using a pattern element is used for current detection.
- the cell sense line is narrowed to form a pattern element, a temperature sensor is provided in the proximity, the pattern element and the temperature sensor are surrounded by a slit, and the pattern element is energized. It is also possible to measure the temperature rise. In that case, it is not shared with short-circuit protection, so it will not be as small as when combined, but the detection circuit as shown in FIG. 11 is replaced with a single temperature sensor and the current is detected in a high voltage band. The same is true in that safe current detection can be performed while maintaining the insulation state from the measurement line without adding a circuit for performing the operation or adding an expensive current detection IC corresponding to a high voltage.
- the substrate temperature is measured using the temperature sensor 80 for measuring the substrate temperature.
- the substrate temperature measuring temperature sensor 80 and the thermal isolation region 70 are omitted.
- the current value may be calculated using the ambient temperature as the substrate temperature.
- the pattern element is placed on the cell sense line (between the battery and the monitoring IC), but it may be placed on the power supply line between the battery and the load.
- the pattern element is made of a material having a reduced thickness and a low conductivity. For example, heat may be generated more than the wiring in other parts.
- the present invention is considered to be used in a field that requires miniaturization / cost reduction in a power storage system equipped with battery cells having a large number of series connections and having a monitoring function for each cell.
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Abstract
Description
図1~図5を用いて本発明の第1の実施形態を説明する。
(構成の説明)
図1は本発明の第1の実施形態の実装基板上に形成するパターン素子のレイアウトを示す平面図である。蓄電システム用電池モジュール監視回路を搭載するプリント基板100において、各セルのセルセンスライン(配線A)内に、部分的に配線幅を細くしたパターン素子10を直列に挿入している。本実施形態ではパターン素子10は短絡に対する保護のための既存のヒューズである。パターン素子10は既存のヒューズを温度検出とそれに基づく電流値の検出に兼用している。
(動作の説明)
本実施形態ではセルセンスラインの配線幅を部分的に狭めそこをパターン素子10とし、そのパターン素子10の配線抵抗を上げ、パターン素子10での通電時の発熱(ジュール熱)を促している。
W=I2×R
の発熱(ジュール熱)が起り、パターン素子10の温度は消費電力Wに比例して上昇する。よって電流を流す前と比べたパターン素子10の上昇温度ΔTはパターン素子10を流れる電流値の二乗に比例する。そして、一定電流を流し続けると、基板温度など外部の温度変化がない状態では、図2のようにパターン素子10の発熱量と放熱量が一致して電流値に応じた温度平衡状態になる。ここから、温度平衡状態のパターン素子10において、図3のような上昇温度―電流特性が得られる。
ΔT/t=(ΔTt2-ΔTt1)/(t2-t1)
尚、単位時間あたりの上昇温度ΔT/tを求めるにあたり、測定間隔t2-t1は常に所定の値を取る。
(効果の説明)
本実施形態ではパターン素子と温度センサはスリットで周囲の基板から熱的に絶縁されており、パターン素子が外部部品の温度変化の影響を受けにくい構造になっている。そのためパターン素子の温度は基板温度から通電による上昇温度を加えた温度になる。このためパターン素子の温度と基板温度から、通電による上昇温度を算出し、電流検出を行うことが可能となる。
[第2の実施形態]
以下本発明の第2の実施形態を説明する。図8(a)~(d)に本実施形態の多層プリント基板110(以下多層基板と略称)上のパターン素子A,D,Eのレイアウトを示す。また、図9(a)、(b)にパターン素子A,D,Eを含めて多層基板110の断面図を示す。
[他の実施形態]
第1,第2の実施形態ではパターン素子を用いた短絡保護エリアを電流検出に用いた。しかし、短絡保護エリアのヒューズとは別にセルセンスラインの配線幅を狭めてパターン素子とし、近接した位置に温度センサを設け、パターン素子と温度センサの周囲をスリットで囲み、そのパターン素子に通電させて温度上昇を測定することも可能である。その場合は短絡保護と兼用ではないので、兼用する場合ほどには小型にならないが、図11のような検出回路が温度センサ1個に置き換わって小型化する点、及び、高電圧帯の電流検出するための回路追加や高電圧に対応した高価な電流検出ICを追加することなく、測定ラインとの絶縁状態を保った安全な電流検知を行うことができる点は同じである。
10 パターン素子
20、23、25 スリット
30、35 温度センサ
40 セルセンスライン
50 電流計算部
60 監視IC
70 熱的孤立領域
80 基板温度測定用温度センサ
90 スルーホール
100 プリント基板
110 多層プリント基板
200 テーブル
Claims (9)
- 熱発生素子、前記熱発生素子の温度を測定する温度センサ、前記熱発生素子と前記温度センサの少なくとも一部を囲むスリットを有することを特徴とする実装基板。
- 前記熱発生素子を近接して複数備え、前記温度センサは前記複数の熱発生素子に近接した場所に位置し、前記スリットは前記複数の熱発生素子と前記温度センサの少なくとも一部を囲むことを特徴とする請求項1に記載の実装基板。
- 短絡保護用の素子を前記熱発生素子として兼用する請求項1または2に記載の実装基板。
- 前記熱発生素子は配線の幅を狭めて抵抗を増加させた領域である請求項3に記載の実装基板。
- 複数の蓄電池の電圧を計測する複数のセルセンス回路に流れる電流を計測する蓄電池の電流計測装置であって、
前記複数のセルセンス回路は熱発生素子、前記熱発生素子の温度を測定する温度センサ、前記熱発生素子と前記温度センサの少なくとも一部を囲むスリットを有する実装基板上に設けられ、
前記温度センサの計測結果に基づき前記電流を求める電流計算部を備えた、
ことを特徴とする蓄電池の電流計測装置。 - 前記実装基板上に熱的孤立領域と基板温度測定用温度センサとを備え、
前記電流計測部は前記温度センサと前記基板温度測定用温度センサの計測結果の差から前記熱発生素子の上昇温度を算出して前記電流を求める請求項5に記載の蓄電池の電流計測装置。 - 複数の蓄電池の電圧を計測する複数セルセンス回路に流れる電流を計測する蓄電池の電流計測装置であって、
前記実装基板は多層基板であり、
前記熱発生素子は前記多層基板の二つの最表面層のうちの一層に設けられ、
前記温度センサは、前記二つの最表面層のうちの他の一層に設けられる
請求項5または6に記載の蓄電池の電流計測装置。 - 前記電流計算部は、前記熱発生素子に流れる電流による所定時間での前記熱発生素子の上昇温度から前記電流を決定する電流値テーブルを備える請求項5から7のいずれか一項に記載の蓄電池の電流計測装置。
- 前記電流値テーブルは基板温度毎に保持する請求項8に記載の蓄電池の電流計測装置。
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JP7539019B2 (ja) | 2020-04-06 | 2024-08-23 | 株式会社Gsユアサ | 蓄電素子の管理装置、蓄電装置、及び、車両 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0772760A (ja) * | 1993-06-28 | 1995-03-17 | Ricoh Co Ltd | 定着装置 |
JPH09215215A (ja) * | 1996-01-31 | 1997-08-15 | Sony Corp | 電源装置 |
JPH10261850A (ja) * | 1997-03-19 | 1998-09-29 | Oki Inf Syst | プリント回路板及びヒューズ付プリント回路板の形成方法 |
JP2008157892A (ja) * | 2006-12-26 | 2008-07-10 | Susumu Co Ltd | 電流検出器、電流検出用具及び電流検出方法 |
WO2008132956A1 (ja) * | 2007-04-24 | 2008-11-06 | Konica Minolta Medical & Graphic, Inc. | 流量センサ |
WO2013121507A1 (ja) * | 2012-02-13 | 2013-08-22 | パナソニック株式会社 | 電流検出器 |
-
2016
- 2016-06-01 WO PCT/JP2016/002631 patent/WO2016194368A1/ja active Application Filing
- 2016-06-01 US US15/578,376 patent/US20180164381A1/en not_active Abandoned
- 2016-06-01 JP JP2017521692A patent/JPWO2016194368A1/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0772760A (ja) * | 1993-06-28 | 1995-03-17 | Ricoh Co Ltd | 定着装置 |
JPH09215215A (ja) * | 1996-01-31 | 1997-08-15 | Sony Corp | 電源装置 |
JPH10261850A (ja) * | 1997-03-19 | 1998-09-29 | Oki Inf Syst | プリント回路板及びヒューズ付プリント回路板の形成方法 |
JP2008157892A (ja) * | 2006-12-26 | 2008-07-10 | Susumu Co Ltd | 電流検出器、電流検出用具及び電流検出方法 |
WO2008132956A1 (ja) * | 2007-04-24 | 2008-11-06 | Konica Minolta Medical & Graphic, Inc. | 流量センサ |
WO2013121507A1 (ja) * | 2012-02-13 | 2013-08-22 | パナソニック株式会社 | 電流検出器 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP7539019B2 (ja) | 2020-04-06 | 2024-08-23 | 株式会社Gsユアサ | 蓄電素子の管理装置、蓄電装置、及び、車両 |
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