WO2014115724A1 - シャント抵抗式電流センサ - Google Patents
シャント抵抗式電流センサ Download PDFInfo
- Publication number
- WO2014115724A1 WO2014115724A1 PCT/JP2014/051122 JP2014051122W WO2014115724A1 WO 2014115724 A1 WO2014115724 A1 WO 2014115724A1 JP 2014051122 W JP2014051122 W JP 2014051122W WO 2014115724 A1 WO2014115724 A1 WO 2014115724A1
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- WIPO (PCT)
- Prior art keywords
- circuit board
- bus bar
- voltage detection
- bent portion
- current sensor
- Prior art date
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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
- G01R19/32—Compensating for temperature change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
-
- 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
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- 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]
- G01R31/364—Battery terminal connectors with integrated measuring arrangements
Definitions
- the present invention relates to a shunt resistance type current sensor.
- the current to be measured is passed through a shunt resistor having a known resistance value, and the magnitude of the current to be measured is detected by detecting a voltage drop generated in the shunt resistor.
- a shunt resistance type current sensor has been proposed.
- a metal piece called a bus bar is sometimes used for power distribution, and a part of the bus bar corresponding to a current path is used as a shunt resistor.
- a circuit board is disposed on the bus bar. The circuit board is equipped with a voltage detection IC for detecting a voltage value applied to the shunt resistor portion in order to detect the magnitude of the current to be measured flowing through the bus bar.
- the resistance value of the shunt resistance portion may change depending on the temperature. For this reason, the shunt resistance type current sensor detects the temperature of the shunt resistor section and corrects the resistance value according to this temperature. In particular, when the temperature dependence coefficient related to the shunt resistor portion is large, it is necessary to accurately detect the temperature of the shunt resistor portion. For this reason, a temperature sensor is also mounted on a circuit board on which a voltage detection IC or the like for detecting a voltage drop is mounted (see Patent Document 1).
- the present invention has been made in view of such a problem, and an object of the present invention is to provide a shunt resistance type current sensor that can be disposed close to a circuit board on which a temperature sensor is mounted and a bus bar.
- a substantially flat bus bar, a circuit board disposed to face the bus bar, and the bus bar and the circuit board integrally formed with the bus bar are provided.
- a pair of voltage detection terminals that are electrically connected to each other, and is applied to the circuit board via the pair of voltage detection terminals to detect the magnitude of the current to be measured that is mounted on the circuit board and flows through the bus bar A voltage detection means for detecting a voltage value; and a temperature detection means mounted on the circuit board for detecting the temperature of the bus bar in order for the voltage detection means to perform correction, each of the voltage detection terminals being A first bent part that bends a part extending from the edge of the bus bar in a direction away from the circuit board, and a part that extends from the first bent part is the circuit board side.
- a second bent portion that bends toward the end, and a connection portion that extends linearly from the second bent portion and that has a thickness reduction process that reduces the plate thickness, and is provided at the tip.
- a shunt resistance type current sensor is provided in which the voltage detection terminal is electrically connected to the circuit board when the tip of the connection portion penetrates the circuit board.
- a ground terminal integrally formed with the bus bar and electrically connecting the bus bar and the circuit board may be further included.
- the ground terminal includes a first bent part that bends a part extending from the edge of the bus bar in a direction away from the circuit board, and a part extended from the first bent part.
- a second bent portion that bends toward the circuit board side, and a connection portion that extends linearly from the second bent portion and is provided with a thickness reduction process for reducing the plate thickness at the tip. It is preferable that the ground terminal is electrically connected to the circuit board when the tip of the connection portion of the ground terminal penetrates the circuit board.
- the voltage detection terminal includes the first bent portion that extends from the bus bar and then bends away from the circuit board.
- the 2nd bending part can be set in the position away from a circuit board on the basis of a bus bar.
- the clearance formed between the bus bar and the circuit board can be reduced, the circuit board on which the temperature sensor is mounted and the bus bar can be arranged close to each other.
- the circuit board on which the temperature sensor is mounted and the bus bar can be arranged close to each other.
- FIG. 1 is a top view schematically showing the shunt resistance type current sensor according to the first embodiment.
- FIG. 2 is a bottom view schematically showing the shunt resistance type current sensor according to the first embodiment.
- FIG. 3 is a side view schematically showing the shunt resistance type current sensor shown in FIG.
- FIG. 4 is a cross-sectional view schematically showing the bus bar.
- FIG. 5 is a side view schematically showing the bus bar.
- FIG. 6 is an explanatory diagram schematically showing a usage state of the shunt resistance type current sensor.
- FIG. 7 is an explanatory diagram illustrating a bus bar including a terminal having a shape that does not include the first bent portion.
- FIG. 8 is an explanatory view showing a shunt resistance type current sensor including the bus bar 10 shown in FIG.
- FIG. 9 is a top view schematically showing a shunt resistance type current sensor according to the second embodiment.
- 10 is a cross-sectional view schematically showing a bus bar of the
- FIG. 1 is a top view schematically showing a shunt resistance type current sensor 1 according to this embodiment
- FIG. 2 is a bottom view schematically showing the shunt resistance type current sensor 1 according to this embodiment
- FIG. 3 is a side view schematically showing the shunt resistance type current sensor 1 shown in FIG. 1, and shows a state in which the shunt resistance type current sensor 1 shown in FIG. 1 is viewed from the lower side with respect to the paper surface.
- the shunt resistance type current sensor 1 according to the present embodiment is used as a battery terminal, and mainly includes a bus bar 10 and a circuit board 20.
- the shunt resistance type current sensor of the present invention is not limited to the one applied to the battery terminal.
- the bus bar 10 is a substantially flat conductive member, and is made of, for example, a copper manganese alloy or a copper nickel alloy.
- the bus bar 10 includes a shunt resistor SR in a part thereof, and a current to be measured flows therethrough.
- the bus bar 10 is formed into a desired shape by press molding from a flat steel material.
- the bus bar 10 is formed in, for example, a substantially U shape, and through holes 11 and 12 are formed on both sides of the shunt resistor portion SR located in the center.
- One through hole 11 functions as a battery post hole, and the other through hole 12 functions as a wire harness fixing hole.
- FIG. 4 is a cross-sectional view schematically showing the bus bar 10 of the shunt resistance type current sensor 1
- FIG. 5 is a side view schematically showing the bus bar 10 of the shunt resistance type current sensor 1.
- the shunt resistance type current sensor 1 includes a pair of voltage detection terminals 41 and 42 corresponding to a positive electrode and a negative electrode, and the individual voltage detection terminals 41 and 42 electrically connect the circuit board 20 and the bus bar 10. .
- one voltage detection terminal 41 corresponds to the positive voltage detection terminal
- the voltage detection terminal 42 corresponds to a negative voltage detection terminal.
- the individual voltage detection terminals 41 and 42 are provided at positions corresponding to both ends of the shunt resistor SR.
- the pair of voltage detection terminals 41 and 42 are formed integrally with the bus bar 10, and are formed at the same time as the bus bar 10 is formed from a flat steel material by press molding.
- the individual voltage detection terminals 41 and 42 are configured as extended pieces extending from the edge of the bus bar 10.
- the voltage detection terminal 42 includes a first bent portion 42 a, and the first bent portion 42 a extends from the edge of the bus bar 10. It is bent in a direction away from the circuit board 20.
- the first bent portion 42 a is formed at a position immediately after extending from the bus bar 10.
- the voltage detection terminal 42 is bent again so that a part extending from the first bent portion 42 a is parallel to the bus bar 10.
- the voltage detection terminal 42 includes a second bent portion 42b, and a portion of the second bent portion 42b extending from the first bent portion 42a is located at a position corresponding to the circuit board 20.
- the portion extending from the second bent portion 42b functions as the connecting portion 42c.
- the connection part 42c extends linearly and penetrates the circuit board 20 (see FIG. 2).
- the tip of the connecting portion 42c is tapered so as to go toward the tip by being subjected to a thickness reducing process that reduces the plate thickness.
- This decompression processing is a pretreatment for realizing a hole provided in the circuit board 20 with a small hole when the voltage detection terminal 42 penetrates the circuit board 20. This pretreatment is performed at least prior to the bending process in the second bent portion 42b.
- the remaining voltage detection terminal 41 has the same form as the voltage detection terminal 42 described above, and the details thereof are omitted. These voltage detection terminals 41 and 42 are respectively arranged in parallel with each other, extending from the edge portions of the bus bar 10 facing each other in alternate directions.
- the shunt resistance type current sensor 1 further includes a ground terminal 43.
- the ground terminal 43 electrically connects the bus bar 10 and the circuit board 20.
- the ground terminal 43 is disposed outside the pair of voltage detection terminals 41 and 42 with reference to the current path of the current to be measured flowing through the bus bar 10.
- the ground terminal 43 is disposed outside the shunt resistor portion SR.
- the ground terminal 43 is provided between the other voltage detection terminal 42 and the through hole 11 for the battery post.
- the ground terminal 43 is configured as an extended piece extending from the edge of the bus bar 10.
- the ground terminal 43 also has the same form as the voltage detection terminals 41 and 42, and penetrates the circuit board 20 at the tip of the connection portion (see FIG. 2).
- the circuit board 20 is installed with a predetermined space so as to face the bus bar 10.
- a pair of circuit patterns is formed on the circuit board 20. The ends of the pair of circuit patterns are connected to connection portions 42 c of voltage detection terminals 41 and 42 that penetrate the circuit board 20. The individual voltage detection terminals 41 and 42 and the circuit pattern are electrically connected, for example, by soldering.
- a ground pattern is formed on the circuit board 20. The end portion of the ground pattern is connected to a connection portion of the ground terminal 43 that penetrates the circuit board 20 and protrudes toward the upper surface side.
- the voltage detection IC 30 is mounted on the circuit board 20 and connected to a circuit pattern formed on the circuit board 20.
- a microcomputer mainly composed of a CPU, a ROM, a RAM, and an I / O interface can be used.
- the voltage detection IC 30 detects a voltage value applied to the circuit board 20 via the pair of voltage detection terminals 41 and 42 in order to detect the magnitude of the current to be measured flowing through the bus bar 10 (voltage detection means). . That is, the voltage detection IC 30 detects a voltage drop that occurs in the shunt resistor SR of the bus bar 10 and detects the magnitude of the current to be measured flowing through the bus bar 10 from the voltage drop.
- the voltage detection IC 30 performs correction according to a detection result by a temperature sensor 35 described later. That is, the voltage detection IC 30 corrects the resistance value in the shunt resistor SR according to the temperature result so as not to detect an erroneous current value due to the influence of the resistance change due to the temperature change.
- the temperature sensor 35 is provided on the surface of the circuit board 20 facing the shunt resistor SR of the bus bar 10.
- the circuit board 20 is provided on the surface opposite to the mounting surface of the voltage detection IC 30. For this reason, the temperature sensor 35 detects the temperature of the bus bar 10 (shunt resistance part SR) in the position facing itself. Further, for example, the temperature sensor 35 is disposed in correspondence with the central portion of the shunt resistor portion SR in the bus bar 10, specifically, the central portion of the shunt resistor portion SR based on the direction in which the current flows. Yes.
- FIG. 6 is an explanatory diagram schematically showing a usage state of the shunt resistance type current sensor 1 according to the present embodiment.
- the bus bar 10 of the shunt resistance type current sensor 1 according to the present embodiment is used as a battery terminal.
- the through hole 11 of the bus bar 10 is connected to the battery post 71 on the negative electrode side of the battery 70 using the bolt 72, and is connected to the wire harness W through the wire harness fixing screw 73 to the other through hole 12.
- the voltage detection terminals 41 and 42 according to the shunt resistance type current sensor 1 are configured as extended pieces extending from the edge of the bus bar 10.
- the voltage detection terminal 42 includes a first bent portion 42 a for bending a part extending from the edge portion of the bus bar 10 in a direction away from the circuit board 20, and a first bent portion.
- the voltage detection terminals 41 and 42 are electrically connected to the circuit board 20 when the tip of the connection part 42c penetrates the circuit board 20.
- FIG. 7 is an explanatory diagram illustrating the bus bar 10 including a terminal having a shape that does not include the first bent portion 42a
- FIG. 8 is an explanatory diagram illustrating the shunt resistance type current sensor 1 including the bus bar 10 illustrated in FIG. It is. 7 and 8 show a form in which a pair of voltage detection terminals 51 and 52 and a ground terminal 53 are used in place of the pair of voltage detection terminals 41 and 42 and the ground terminal 43 described above. These terminals 51, 52 and 53 have the same shape.
- the shape of the voltage detection terminal 52 will be described as an example.
- the voltage detection terminal 52 is configured as an extended piece extending from the edge of the bus bar 10. Specifically, as shown in FIG. 7, the voltage detection terminal 52 includes a second bent portion 52 b, and the second bent portion 52 b extends from the edge of the bus bar 10. Is bent at an angle of about 90 degrees toward the circuit board 20 at a position corresponding to the circuit board 20. Further, in the voltage detection terminal 42, a portion extending linearly from the second bent portion 52b functions as the connecting portion 52c. The front end of the connection part 52 c penetrates the circuit board 20. Here, the connecting portion 52c is subjected to thickness reduction processing to reduce its plate thickness by press processing in order to make its tip thin.
- connection portion 52c When the thickness of the tip of the connection portion 52c is reduced, this processed portion is work-hardened, so that it is difficult to bend the portion. Therefore, when forming the location which becomes the 2nd bending part 42b, it is necessary to perform a bending process in the position where the thickness reduction process is not made. Therefore, in the connection portion 52c, a wide portion that has not been subjected to thickness reduction processing remains between the tip (region where thickness reduction processing has been performed) and the second bent portion 52b. In this case, the circuit board 20 penetrated by the connection portion 52c can approach a thick portion of the connection portion 52c that has not been subjected to thickness reduction processing. However, as shown in FIG.
- the voltage detection terminal 42 includes the first bent portion 42 a that bends a part extending from the bus bar 10 in a direction away from the circuit board 20.
- the second bent portion 42b can be set at a position away from the circuit board 20 with the bus bar 10 as a reference, as compared with a configuration that does not include the first bent portion 42a.
- the clearance formed between the bus bar 10 and the circuit board 20 can be reduced.
- the circuit board 20 on which the temperature sensor 35 is mounted and the bus bar 10 can be disposed close to each other. As a result, the temperature detection accuracy by the temperature sensor 35 can be improved.
- the thickness of the connecting portion 42c that is, the height of the tip is secured between the circuit board 20 and the bus bar 10 so long as the accuracy is sufficient to penetrate between the circuit board 20 and the circuit board 20. Does not affect the distance between. Therefore, a long tip can be secured.
- the thin shape for processing makes it difficult for heat to escape, and soldering becomes easier. As a result, workability can be improved, so that the manufacturing time can be shortened and thus the manufacturing cost can be reduced.
- the thin tip can be deformed to relieve the stress acting on the connection portion. For this reason, the reliability of a solder part can be aimed at.
- FIG. 9 is a top view schematically showing the shunt resistance type current sensor 1 according to the present embodiment
- FIG. 10 is a sectional view schematically showing the bus bar 10 of the shunt resistance type current sensor 1 shown in FIG. is there.
- the difference between the shunt resistance type current sensor 1 according to the second embodiment and the first embodiment is the shape of each terminal 41, 42, 43. Note that description of points that are the same as in the first embodiment will be omitted, and hereinafter, differences will be mainly described.
- the terminals 41, 42, and 43 have the same shape as each other.
- the shape of the voltage detection terminal 42 will be described as an example.
- the voltage detection terminal 42 includes a first bent portion 42 a, and the first bent portion 42 a extends in a direction away from the circuit board 20 at a part extending from the edge of the bus bar 10. And bent. The degree of bending in the first bent portion 42a is moderate compared to the first embodiment.
- the voltage detection terminal 42 is inclined so that a part extending from the first bent portion 42 a is gradually separated from the bus bar 10.
- the voltage detection terminal 42 includes a second bent portion 42b, and the second bent portion 42b has a portion extending from the first bent portion 42a at a position corresponding to the circuit board 20. It is bent at an angle of about 90 degrees toward the circuit board 20 side.
- a portion extending from the second bent portion 42b extends linearly as the connecting portion 42c and penetrates the circuit board 20 (see FIG. 2).
- a thickness reduction process for reducing the plate thickness is performed on a part of the connection portion 42c (a portion on the front end side).
- the voltage detection terminal 42 includes the first bent portion 42 a that bends a part extending from the bus bar 10 in a direction away from the circuit board 20.
- the second bent portion 42b can be set at a position away from the circuit board 20 with the bus bar 10 as a reference, as compared with a configuration that does not include the first bent portion 42a.
- the clearance formed between the bus bar 10 and the circuit board 20 can be reduced.
- the circuit board 20 on which the temperature sensor 35 is mounted and the bus bar 10 can be disposed close to each other. As a result, the temperature detection accuracy by the temperature sensor 35 can be improved.
- the thickness of the connecting portion 42c that is, the height of the tip is secured between the circuit board 20 and the bus bar 10 so long as the accuracy is sufficient to penetrate between the circuit board 20 and the circuit board 20. Does not affect the distance between. Therefore, a long tip can be secured.
- the thin shape for processing makes it difficult for heat to escape, and soldering becomes easier. As a result, workability can be improved, so that the manufacturing time can be shortened and thus the manufacturing cost can be reduced.
- the thin tip can be deformed to relieve the stress acting on the connection portion. For this reason, the reliability of a solder part can be aimed at.
- a substantially flat bus bar ; A circuit board disposed facing the bus bar; A pair of voltage detection terminals formed integrally with the bus bar and electrically connecting the bus bar and the circuit board; Voltage detection means mounted on the circuit board for detecting a voltage value applied to the circuit board via the pair of voltage detection terminals in order to detect the magnitude of the current to be measured flowing in the bus bar; Temperature detection means mounted on the circuit board for detecting the temperature of the bus bar in order for the voltage detection means to perform correction; Have Each of the voltage detection terminals is A first bent portion that bends a portion extending from the edge of the bus bar in a direction away from the circuit board; A second bent portion for bending a portion extending from the first bent portion toward the circuit board; A connecting portion that extends in a straight line from the second bent portion and has a thickness-reducing process for reducing the plate thickness at the tip; With A shunt resistance type current sensor in which the tip of the connecting portion of the voltage detection terminal penetrates the circuit board, and the voltage detection terminal is electrically connected to the circuit
- a ground terminal that is integrally formed with the bus bar and electrically connects the bus bar and the circuit board,
- the ground terminal is A first bent portion that bends a part extending from the edge portion of the bus bar in a direction away from the circuit board;
- a second bent portion for bending a portion extending from the first bent portion toward the circuit board;
- a connecting portion that extends in a straight line from the second bent portion and has a thickness-reducing process for reducing the plate thickness at the tip;
- the circuit board on which the temperature sensor is mounted and the bus bar can be arranged close to each other.
- the present invention exhibiting this effect is useful in the field of shunt resistance type current sensors.
- SYMBOLS 1 Shunt resistance type current sensor 10 Bus bar 11 Through-hole 12 Through-hole 20 Circuit board 30 Voltage detection IC 41 voltage detection terminal 42 voltage detection terminal 42a first bent portion 42b second bent portion 42c connection portion 43 ground terminal 70 battery 71 battery post 72 bolt 73 wire harness fixing screw SR shunt resistor portion W wire harness
Abstract
Description
図9は、本実施形態に係るシャント抵抗式電流センサ1を模式的に示す上面図であり、図10は、図9に示すシャント抵抗式電流センサ1のバスバ10を模式的に示す断面図である。第2の実施形態に係るシャント抵抗式電流センサ1が、第1の実施形態と相違する点は、各端子41,42,43の形状である。なお、第1の実施形態と共通する点については説明を省略することとし、以下相違点を中心に説明を行う。また、各端子41,42,43は、互いに同様の形状が採用されている。以下、電圧検出端子42の形状を例示して説明する。
前記バスバと向き合って配置される回路基板と、
前記バスバと一体形成された、前記バスバと前記回路基板とを電気的に接続する一対の電圧検出端子と、
前記回路基板に搭載され、前記バスバに流れる被測定電流の大きさを検出するために前記一対の電圧検出端子を介して前記回路基板に印加される電圧値を検出する電圧検出手段と、
前記回路基板に搭載され、前記電圧検出手段が補正を行うために前記バスバの温度を検出する温度検出手段と、
を有し、
前記電圧検出端子のそれぞれは、
前記バスバの辺縁部から延出した一部を、前記回路基板から遠ざかる向きへと折り曲げる第1の折り曲げ部と、
前記第1の折り曲げ部から延在した一部を、前記回路基板側へ向けて折り曲げる第2の折り曲げ部と、
前記第2の折り曲げ部から直線状に延在した、板厚を減少させる減厚加工が先端に施された接続部と、
を備え、
前記電圧検出端子の前記接続部の先端が前記回路基板を貫通することによって、当該電圧検出端子が当該回路基板と電気的に接続されるシャント抵抗式電流センサ。
[2] 前記バスバと一体形成された、前記バスバと前記回路基板とを電気的に接続するグランド端子をさらに有し、
前記グランド端子は、
前記バスバの辺縁部から延出した一部を、前記回路基板から遠ざかる向きへと折り曲げる第1の折り曲げ部と、
前記第1の折り曲げ部から延在した一部を、前記回路基板側へ向けて折り曲げる第2の折り曲げ部と、
前記第2の折り曲げ部から直線状に延在した、板厚を減少させる減厚加工が先端に施された接続部と、
を備え、
前記グランド端子の前記接続部の先端が前記回路基板を貫通することによって、当該グランド端子が当該回路基板と電気的に接続される[1]に記載されたシャント抵抗式電流センサ。
10 バスバ
11 貫通孔
12 貫通孔
20 回路基板
30 電圧検出IC
41 電圧検出端子
42 電圧検出端子
42a 第1の折り曲げ部
42b 第2の折り曲げ部
42c 接続部
43 グランド端子
70 バッテリ
71 バッテリポスト
72 ボルト
73 ワイヤーハーネス固定ネジ
SR シャント抵抗部
W ワイヤーハーネス
Claims (2)
- 略平板形状のバスバと、
前記バスバと向き合って配置される回路基板と、
前記バスバと一体形成された、前記バスバと前記回路基板とを電気的に接続する一対の電圧検出端子と、
前記回路基板に搭載され、前記バスバに流れる被測定電流の大きさを検出するために前記一対の電圧検出端子を介して前記回路基板に印加される電圧値を検出する電圧検出手段と、
前記回路基板に搭載され、前記電圧検出手段が補正を行うために前記バスバの温度を検出する温度検出手段と、
を有し、
前記電圧検出端子のそれぞれは、
前記バスバの辺縁部から延出した一部を、前記回路基板から遠ざかる向きへと折り曲げる第1の折り曲げ部と、
前記第1の折り曲げ部から延在した一部を、前記回路基板側へ向けて折り曲げる第2の折り曲げ部と、
前記第2の折り曲げ部から直線状に延在した、板厚を減少させる減厚加工が先端に施された接続部と、
を備え、
前記電圧検出端子の前記接続部の先端が前記回路基板を貫通することによって、当該電圧検出端子が当該回路基板と電気的に接続されるシャント抵抗式電流センサ。 - 前記バスバと一体形成された、前記バスバと前記回路基板とを電気的に接続するグランド端子をさらに有し、
前記グランド端子は、
前記バスバの辺縁部から延出した一部を、前記回路基板から遠ざかる向きへと折り曲げる第1の折り曲げ部と、
前記第1の折り曲げ部から延在した一部を、前記回路基板側へ向けて折り曲げる第2の折り曲げ部と、
前記第2の折り曲げ部から直線状に延在した、板厚を減少させる減厚加工が先端に施された接続部と、
を備え、
前記グランド端子の前記接続部の先端が前記回路基板を貫通することによって、当該グランド端子が当該回路基板と電気的に接続される請求項1に記載されたシャント抵抗式電流センサ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14743914.5A EP2933643B1 (en) | 2013-01-23 | 2014-01-21 | Shunt resistance-type current sensor |
KR1020157019925A KR20150099593A (ko) | 2013-01-23 | 2014-01-21 | 션트 저항식 전류 센서 |
US14/762,936 US9404949B2 (en) | 2013-01-23 | 2014-01-21 | Shunt resistance-type current sensor |
CN201480005707.XA CN105324673B (zh) | 2013-01-23 | 2014-01-21 | 分流电阻式电流传感器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013010027A JP6010468B2 (ja) | 2013-01-23 | 2013-01-23 | シャント抵抗式電流センサ |
JP2013-010027 | 2013-01-23 |
Publications (1)
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EP (1) | EP2933643B1 (ja) |
JP (1) | JP6010468B2 (ja) |
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CN107589291A (zh) * | 2016-07-06 | 2018-01-16 | 深圳市沃特玛电池有限公司 | 电动汽车电流检测系统及方法 |
Families Citing this family (11)
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KR102229824B1 (ko) * | 2014-11-19 | 2021-03-22 | 현대모비스 주식회사 | Ibs 장치 |
GB201608491D0 (en) | 2016-05-13 | 2016-06-29 | Dukosi Ltd | Electric batteries |
JP6910762B2 (ja) | 2016-06-27 | 2021-07-28 | Koa株式会社 | 電流測定装置 |
JP6832103B2 (ja) * | 2016-09-20 | 2021-02-24 | Koa株式会社 | 電流測定装置 |
KR102287317B1 (ko) * | 2017-06-07 | 2021-08-10 | 현대자동차주식회사 | 전류센서 |
EP3678295B1 (en) * | 2017-08-30 | 2022-03-09 | Yazaki Corporation | Semiconductor relay and vehicle current detection device |
JP7152160B2 (ja) * | 2018-01-26 | 2022-10-12 | 矢崎総業株式会社 | バスバー及びバスバー固定構造 |
DE102019108541A1 (de) * | 2019-04-02 | 2020-10-08 | Eberspächer Controls Landau Gmbh & Co. Kg | Strommessbaugruppe |
EP4065989A1 (en) * | 2019-11-27 | 2022-10-05 | Eaton Intelligent Power Limited | Busbar as current sensor |
KR102421418B1 (ko) * | 2020-02-24 | 2022-07-15 | 삼성에스디아이 주식회사 | 에너지 저장 시스템의 배터리 통합 제어기 |
JP2022001843A (ja) * | 2020-06-22 | 2022-01-06 | 矢崎総業株式会社 | 電流センサ |
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GB0000067D0 (en) * | 2000-01-06 | 2000-02-23 | Delta Electrical Limited | Current detector and current measurement apparatus including such detector with temparature compensation |
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JP4442660B2 (ja) * | 2007-08-10 | 2010-03-31 | 株式会社デンソー | 車両システム |
JP2009071071A (ja) * | 2007-09-13 | 2009-04-02 | Denso Corp | 電子回路部品実装構造及びその製造方法 |
CN102271459B (zh) * | 2010-06-03 | 2014-09-24 | 矢崎总业株式会社 | 布线基板及其制造方法 |
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- 2014-01-21 CN CN201480005707.XA patent/CN105324673B/zh active Active
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JP2004221160A (ja) * | 2003-01-10 | 2004-08-05 | Mitsubishi Electric Corp | 電流検出用抵抗器 |
JP2012078328A (ja) | 2010-10-06 | 2012-04-19 | Yazaki Corp | バスバー温度を正確に測定できる電流検出装置 |
JP2012220249A (ja) * | 2011-04-05 | 2012-11-12 | Yazaki Corp | シャント抵抗式電流センサ |
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CN107589291A (zh) * | 2016-07-06 | 2018-01-16 | 深圳市沃特玛电池有限公司 | 电动汽车电流检测系统及方法 |
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CN105324673B (zh) | 2018-05-01 |
JP6010468B2 (ja) | 2016-10-19 |
KR20150099593A (ko) | 2015-08-31 |
EP2933643A1 (en) | 2015-10-21 |
US9404949B2 (en) | 2016-08-02 |
US20150355244A1 (en) | 2015-12-10 |
EP2933643A4 (en) | 2016-10-26 |
EP2933643B1 (en) | 2020-09-23 |
JP2014142226A (ja) | 2014-08-07 |
CN105324673A (zh) | 2016-02-10 |
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