WO2011132570A1 - Connection structure for a wiring material - Google Patents

Connection structure for a wiring material Download PDF

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Publication number
WO2011132570A1
WO2011132570A1 PCT/JP2011/059101 JP2011059101W WO2011132570A1 WO 2011132570 A1 WO2011132570 A1 WO 2011132570A1 JP 2011059101 W JP2011059101 W JP 2011059101W WO 2011132570 A1 WO2011132570 A1 WO 2011132570A1
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WO
WIPO (PCT)
Prior art keywords
wiring
connection
wiring material
thermistor
circuit pattern
Prior art date
Application number
PCT/JP2011/059101
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French (fr)
Japanese (ja)
Inventor
池田　智洋
佐藤　勝則
潤之 加藤
Original Assignee
矢崎総業株式会社
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Application filed by 矢崎総業株式会社 filed Critical 矢崎総業株式会社
Priority to CN2011800024890A priority Critical patent/CN102472672A/en
Publication of WO2011132570A1 publication Critical patent/WO2011132570A1/en

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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K2007/163—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements provided with specially adapted connectors
    • 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

  • This invention relates to the connection structure of the wiring material to the temperature detector provided in the power supply device of vehicles, such as an electric vehicle and a hybrid car.
  • Electric cars and hybrid cars are increasing as environmentally friendly cars.
  • a power supply device including a battery assembly in which a plurality of batteries are stacked.
  • the power supply device in order to detect the voltage of each battery, a signal output line that is connected to each battery and outputs the voltage of the battery to the outside is wired (see, for example, Patent Document 1). Further, the power supply device is provided with a temperature detector, detects the temperature of the battery, and limits or cuts off the charge / discharge current of the battery based on the detection result to prevent the battery temperature from rising. (For example, refer to Patent Document 2).
  • the present invention has been made in view of the above-described circumstances, and an object thereof is to provide a wiring material connection structure that can be easily connected to a temperature detector.
  • a wiring material connection structure to a temperature detector for detecting the temperature of the battery of the power supply device wherein the wiring material connecting end provided on the temperature detector is connected to a wiring material connecting end made of a flexible printed wiring board. And the lead part exposed to the wiring connection part and the circuit pattern of the wiring material are soldered.
  • this wiring material connection structure since the lead part exposed to the wiring connection part of the temperature detector and the circuit pattern of the wiring material made of the flexible printed wiring board are connected by soldering, the wiring material Compared to connecting lead wires to and soldering, the lead wire connection process can be eliminated, and wiring materials can be connected to the temperature detector very easily while ensuring high connection reliability. Can do.
  • the temperature detector includes a locking protrusion formed on the wiring connection portion and a cover that can be opened and closed with respect to the wiring connection portion. Then, a locking hole formed at the connection end of the wiring member is locked and positioned by the locking projection, and the wiring member is closed by the cover and the connection end is held by the wiring connection portion. Being.
  • this wiring material connection structure since the locking projection of the wiring connection portion is locked in the locking hole of the wiring material, even if an external force such as a tensile force is generated in the wiring material, the temperature detector and the wiring material It is possible to prevent a large force from being applied to the connecting portion.
  • the connection end of the wiring material is covered and held by the cover, it is possible to easily prevent contact of other parts and the like to the connection place as compared to the case where a protective tube is put on the wiring connection portion. it can. Thereby, the connection failure in the connection part of the wiring material to a temperature detector can be prevented further, and connection reliability can be improved.
  • the circuit pattern of the temperature detection wiring and the circuit pattern of the battery voltage detection wiring are provided and integrated on the wiring material made of the flexible printed wiring board.
  • the wiring workability can be improved and the wiring space can be reduced by simplifying the wiring.
  • the cost can be reduced by reducing the number of connection parts such as connectors, and the connection workability to other boards or the like can be improved.
  • FIG. 1 It is a perspective view of the wiring material connected to the thermistor and bus bar which concern on one Embodiment of this invention. It is a perspective view of a part of wiring material connected to the thermistor and bus bar shown in FIG. It is a schematic wiring diagram explaining the wiring structure of the wiring material shown in FIG. It is a perspective view of the thermistor to which the wiring material was connected by the connection structure of the wiring material which concerns on one Embodiment of this invention. It is a perspective view of the thermistor explaining the connection state of the wiring material to the thermistor shown in FIG. It is a perspective view of one direction side of the thermistor to which the wiring material which concerns on one Embodiment of this invention is connected.
  • FIG. 9 is a schematic wiring diagram illustrating a wiring configuration of a wiring material according to the reference example illustrated in FIG. 8.
  • the wiring member 11 is composed of a flexible printed wiring board (FPC).
  • the wiring member 11 has a straight line portion 12, and has a thermistor connection branch line portion 13 on one side portion of the straight line portion 12.
  • the thermistor connection branch line portion 13 is connected to a thermistor 14 that is a temperature detector.
  • the wiring member 11 also has wiring for battery voltage detection, and has a plurality of battery connection branch line portions 15 on the side portion opposite to the thermistor connection branch line portion 13 in the straight portion 12. ing. These battery connection branch lines 15 are soldered to and connected to a plurality of bus bars 16 that connect a plurality of battery terminals (not shown) constituting a battery assembly of the power supply device.
  • the wiring member 11 forms a circuit pattern 21 for temperature detection wiring and a circuit pattern 22 for battery voltage detection wiring on a single flexible printed wiring board.
  • the temperature detection wiring and the battery voltage detection wiring are integrated.
  • the single connector 23 is connected to the edge part, and this connector 23 is a circuit board (not shown) provided with temperature detection circuits and voltage detection circuits, such as a control apparatus. Connected to.
  • the thermistor 14 has a rectangular block-shaped main body portion 31 made of an insulating resin in which a temperature detection body made of a temperature sensing element is provided.
  • the main body portion 31 is integrally formed with an arm portion 32 extending obliquely upward from both side portions thereof, and the arm portion 32 is formed with a branch portion 33 on a side portion thereof.
  • the thermistor 14 is supported by the arm portion 32 being fixed to a frame or the like, and the bottom surface of the main body portion 31 is pressed against the surface of the battery, which is the detection target, by the elastic force of the arm portion 32.
  • the main body 31 of the thermistor 14 is provided with a wiring connection portion 41 for connecting the thermistor connection branch line portion 13 of the wiring material 11 on the upper portion thereof.
  • the wiring connection portion 41 is connected to a cover 43 that is rotatably provided by a hinge portion 42 in the extending direction of the thermistor connection branch line portion 13. Therefore, the cover 43 can rotate around the hinge portion 42 to cover the wiring connection portion 41.
  • the wire connection portion 41 is formed with lock claws 44 on both sides on the connection side of the thermistor connection branch line portion 13, and the cover 43 is overlaid and closed so as to cover the wire connection portion 41. The both side portions are locked by the lock claws 44, and the closed state is maintained.
  • the cover 43 is formed with a clearance groove 45, and a positioning locking projection 52 described later is disposed in the clearance groove 45 in a closed state superimposed on the wiring connection portion 41.
  • a pair of lead portions 51 extending from the temperature detection body in the main body portion 31 are exposed in the wiring connection portion 41. Further, the wiring connection portion 41 is provided with a positioning locking projection 52 at the center position in the width direction.
  • the thermistor connection branch line portion 13 of the wiring member 11 connected to the wiring connection portion 41 has a pair of connection holes (not shown) at the end position of the circuit pattern 21 at the connection end 13a.
  • the lead portion 51 protruding from the wiring connection portion 41 is inserted into these connection holes. Then, the lead part 51 and the circuit pattern 21 are soldered and joined by the solder 53.
  • a locking hole 54 is formed between the circuit patterns 21 at the connection end 13 a of the thermistor connection branch line portion 13, and a positioning member formed in the wiring connection portion 41 is formed in the locking hole 54.
  • the stop protrusion 52 is fitted.
  • the thermistor 14 is connected to the thermistor connection branch line portion 13 of the wiring member 11 .
  • the lead portion 51 and the positioning locking protrusion 52 of the wiring connection portion 41 are inserted into the connection hole and the locking hole 54 of the connection end 13a, respectively.
  • the thermistor connection branch line part 13 is arranged in the wiring connection part 41. In this state, the lead part 51 and the circuit pattern 21 are soldered and joined by the solder 53.
  • cover 43 is rotated around the hinge part 42, and is overlapped and closed so as to cover the wiring connection part 41. If it does in this way, both sides of cover 43 will be locked by lock claw 44, and this cover 43 will be maintained in the closed state.
  • the circuit pattern 21 of the wiring member 11 including the lead portion 51 exposed to the wiring connection portion 41 of the thermistor 14 and the flexible printed wiring board.
  • the lead wire connection process can be eliminated compared to the case where the lead wire is connected to the wiring material and the lead wire is soldered to the thermistor.
  • the wiring material 11 can be connected to the thermistor 14 very easily while ensuring high connection reliability.
  • the wiring material 11 which consists of a thin flexible printed wiring board is used, a wiring space can be reduced compared with the wiring by an electric wire.
  • the positioning locking projection 52 of the wiring connecting portion 41 is locked in the locking hole 54 of the wiring material 11, the connection place between the thermistor 14 and the wiring material 11 even if a tensile force or the like is generated in the wiring material 11. It is possible to prevent a large force from being applied to the surface.
  • the connection end 13a of the wiring member 11 in which the lead part 51 is soldered to the circuit pattern 21 is covered and held by the cover 43, it is possible to prevent contact of other components or the like with the connection portion. . Thereby, the connection failure in the connection location of the wiring material 11 to the thermistor 14 can be further prevented, and the connection reliability can be improved.
  • the temperature detection wiring circuit pattern 21 and the battery voltage detection wiring circuit pattern 22 are provided and integrated on the wiring member 11 made of a flexible printed wiring board, the temperature detection wiring and the battery voltage are integrated. Compared to the case where the detection wiring is separately provided, the wiring workability can be improved and the wiring space can be reduced by simplifying the wiring. Specifically, in the conventional wiring work, the battery voltage wiring and the voltage detection terminal are crimped and crimped, while the temperature detection wiring and the thermistor are connected by different splicing methods. Therefore, it takes time and labor for wiring work.
  • the bus bar and the wiring material, and the thermistor and the wiring material are connected by solder connection in the same process to the power supply housing case incorporating the wiring material including the bus bar, the thermistor, and the flexible printed wiring board.
  • the wiring workability can be improved.
  • the cost can be reduced by reducing the number of connection parts such as connectors, and the connection workability to other boards or the like can be improved.
  • FIG. 8 is a perspective view of a thermistor showing a connection structure of a wiring material made of electric wires to a thermistor according to a reference example
  • FIG. 9 is a perspective view of an end portion of the wiring material made of electric wires
  • FIG. It is a schematic wiring diagram explaining a wiring structure.
  • the thermistor 61 is connected to an electric wire 62 as a wiring material.
  • the terminal process of the electric wire 62 to be connected is performed.
  • the lead wire 64 is connected to the conductor of the electric wire 62 by crimping with a caulking material 63, and a protective material 65 such as a heat-shrinkable tube is attached to this connection location.
  • a protective material 65 such as a heat-shrinkable tube is attached to this connection location.
  • the lead wire 64 is soldered to the terminal of the thermistor 61 and connected.
  • connecting the wiring member made of the electric wire 62 to the thermistor 61 involves complicated terminal processing work of the electric wire 62. Further, when the electric wire 62 is pulled, a large force acts on the connection portion, and there is a possibility that a connection failure occurs. Further, in the thermistor 61, as shown in FIG. 10, a temperature detecting wire 62 must be routed separately from the battery voltage detecting wire 67, which complicates wiring work and makes wiring complicated. In addition, a large wiring space is required. In addition, the connectors 62a and 67a must be connected to the respective ends of the temperature detection wire 62 and the battery voltage detection wire 67, and these must be connected to the circuit board of the control device, respectively, increasing the number of components. This increases the cost and complicates the connection work.
  • the length of the electric wire 62 changes depending on the attachment position of the thermistor 61, and the product number of the thermistor 61 increases.
  • the lead wire connection process can be eliminated and high connection reliability can be ensured compared to the case where the lead wire is connected to the wiring material and soldered.

Abstract

The disclosed connection structure for a wiring material allows easy connection to a temperature detector. In said structure, a wiring material (11) is connected to a thermistor (14) that detects the temperature of a battery in a power-supply device. A connection end (13a) of a wiring material (11) comprising a flexible printed wiring substrate is placed in a wiring connection section (41) provided on the thermistor (14), and exposed lead parts (51) in the wiring connection section (41) are soldered to a circuit pattern (21) on the wiring material (11).

Description

配線材の接続構造Wiring material connection structure
　本発明は、電気自動車やハイブリッドカー等の車両の電源装置に設けられる温度検出器への配線材の接続構造に関する。 This invention relates to the connection structure of the wiring material to the temperature detector provided in the power supply device of vehicles, such as an electric vehicle and a hybrid car.
　環境にやさしい自動車として、電気自動車やハイブリッドカーが増加している。このような車両には、複数のバッテリを重ね合わせたバッテリ集合体からなる電源装置が搭載されている。 電 気 Electric cars and hybrid cars are increasing as environmentally friendly cars. Such a vehicle is equipped with a power supply device including a battery assembly in which a plurality of batteries are stacked.
　この種の電源装置は、各バッテリの電圧を検出するために、各バッテリに接続されてバッテリの電圧を外部に出力する信号出力ラインが配線されている（例えば、特許文献１参照）。また、この電源装置には、温度検出器が設けられ、バッテリの温度を検出し、その検出結果に基づいて、バッテリの充放電電流の制限、あるいは遮断を行い、バッテリの電池温度の上昇を防ぐようにしている（例えば、特許文献２参照）。 In this type of power supply device, in order to detect the voltage of each battery, a signal output line that is connected to each battery and outputs the voltage of the battery to the outside is wired (see, for example, Patent Document 1). Further, the power supply device is provided with a temperature detector, detects the temperature of the battery, and limits or cuts off the charge / discharge current of the battery based on the detection result to prevent the battery temperature from rising. (For example, refer to Patent Document 2).
日本国特開２００１－３４５０８２号公報Japanese Patent Laid-Open No. 2001-345082 日本国特開２００８－３０４２９５号公報Japanese Unexamined Patent Publication No. 2008-304295
　ところで、温度検出器に電線やフレキシブルプリント配線基板（ＦＰＣ）からなる配線材を接続するには、その配線材にリード線を接続し、さらに、そのリード線を温度検出器に半田付けした後、配線接続部に保護チューブを被せて保護するという煩雑な接続作業を要していた。 By the way, in order to connect a wiring material made of an electric wire or a flexible printed wiring board (FPC) to the temperature detector, after connecting a lead wire to the wiring material and further soldering the lead wire to the temperature detector, The complicated connection work of covering the wiring connection portion with a protective tube is required.
　本発明は、上述した事情に鑑みてなされたものであり、その目的は、温度検出器に容易に接続することが可能な配線材の接続構造を提供することにある。 The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a wiring material connection structure that can be easily connected to a temperature detector.
　本発明に係る上記目的は、下記構成により達成される。
（１）　電源装置のバッテリの温度を検出する温度検出器への配線材の接続構造であって、前記温度検出器に設けられた配線接続部に、フレキシブルプリント配線基板からなる配線材の接続端が配置され、前記配線接続部に露出されたリード部と前記配線材の回路パターンとが半田付けされること。 The above object of the present invention is achieved by the following configuration.
(1) A wiring material connection structure to a temperature detector for detecting the temperature of the battery of the power supply device, wherein the wiring material connecting end provided on the temperature detector is connected to a wiring material connecting end made of a flexible printed wiring board. And the lead part exposed to the wiring connection part and the circuit pattern of the wiring material are soldered.
　この配線材の接続構造によれば、温度検出器の配線接続部に露出されたリード部とフレキシブルプリント配線基板からなる配線材の回路パターンとが半田付けによって接続された構造を有するので、配線材にリード線を接続し半田付けして接続する場合と比較して、リード線の接続工程をなくすことができ、高い接続信頼性を確保しつつ極めて容易に温度検出器に配線材を接続することができる。 According to this wiring material connection structure, since the lead part exposed to the wiring connection part of the temperature detector and the circuit pattern of the wiring material made of the flexible printed wiring board are connected by soldering, the wiring material Compared to connecting lead wires to and soldering, the lead wire connection process can be eliminated, and wiring materials can be connected to the temperature detector very easily while ensuring high connection reliability. Can do.
（２）　上記（１）の構成の配線材の接続構造において、前記温度検出器は、前記配線接続部に形成された係止突起と、前記配線接続部に対して開閉可能なカバーとを有し、前記配線材の接続端に形成された係止孔が前記係止突起に係止されて位置決めされ、前記配線材は前記カバーが閉ざされて前記接続端が前記配線接続部に保持されていること。 (2) In the wiring material connection structure configured as described in (1) above, the temperature detector includes a locking protrusion formed on the wiring connection portion and a cover that can be opened and closed with respect to the wiring connection portion. Then, a locking hole formed at the connection end of the wiring member is locked and positioned by the locking projection, and the wiring member is closed by the cover and the connection end is held by the wiring connection portion. Being.
　この配線材の接続構造によれば、配線材の係止孔に配線接続部の係止突起が係止されているので、配線材に引っ張り力等の外力が生じても温度検出器と配線材との接続箇所に大きな力が付与するのを防止することができる。また、配線材の接続端がカバーによって覆われて保持されているので、配線接続部に保護チューブを被せる場合と比較して、接続箇所への他の部品等の接触を容易に防止することができる。これにより、温度検出器への配線材の接続箇所における接続不良をさらに防止し、接続信頼性を高めることができる。 According to this wiring material connection structure, since the locking projection of the wiring connection portion is locked in the locking hole of the wiring material, even if an external force such as a tensile force is generated in the wiring material, the temperature detector and the wiring material It is possible to prevent a large force from being applied to the connecting portion. In addition, since the connection end of the wiring material is covered and held by the cover, it is possible to easily prevent contact of other parts and the like to the connection place as compared to the case where a protective tube is put on the wiring connection portion. it can. Thereby, the connection failure in the connection part of the wiring material to a temperature detector can be prevented further, and connection reliability can be improved.
（３）　上記（１）または（２）の構成の配線材の接続構造において、温度検出用配線の回路パターンとバッテリ電圧検出用配線の回路パターンとが前記配線材に設けられていること。 (3) In the wiring material connection structure having the configuration of (1) or (2), a circuit pattern for temperature detection wiring and a circuit pattern for battery voltage detection wiring are provided on the wiring material.
　この配線材の接続構造によれば、温度検出用配線の回路パターンとバッテリ電圧検出用配線の回路パターンとがフレキシブルプリント配線基板からなる配線材に設けられて一体化されているので、温度検出用の配線とバッテリ電圧検出用の配線を別々に配線する場合と比較して、配線の簡略化によって配線作業性の向上、配線スペースの削減を図ることができる。また、制御装置の回路基板等へ接続する接続端も一つとなるので、コネクタ等の接続部品数の削減によるコストダウン及び他の基板等への接続作業性の向上を図ることができる。 According to this wiring material connection structure, the circuit pattern of the temperature detection wiring and the circuit pattern of the battery voltage detection wiring are provided and integrated on the wiring material made of the flexible printed wiring board. As compared with the case where the wiring for battery voltage detection and the wiring for battery voltage detection are separately wired, the wiring workability can be improved and the wiring space can be reduced by simplifying the wiring. In addition, since there is only one connection end connected to the circuit board or the like of the control device, the cost can be reduced by reducing the number of connection parts such as connectors, and the connection workability to other boards or the like can be improved.
本発明の一実施形態に係るサーミスタ及びバスバーに接続された配線材の斜視図である。It is a perspective view of the wiring material connected to the thermistor and bus bar which concern on one Embodiment of this invention. 図１に示したサーミスタ及びバスバーに接続された配線材の一部の斜視図である。It is a perspective view of a part of wiring material connected to the thermistor and bus bar shown in FIG. 図１に示した配線材の配線構成を説明する概略配線図である。It is a schematic wiring diagram explaining the wiring structure of the wiring material shown in FIG. 本発明の一実施形態に係る配線材の接続構造によって配線材が接続されたサーミスタの斜視図である。It is a perspective view of the thermistor to which the wiring material was connected by the connection structure of the wiring material which concerns on one Embodiment of this invention. 図４に示したサーミスタへの配線材の接続状態を説明するサーミスタの斜視図である。It is a perspective view of the thermistor explaining the connection state of the wiring material to the thermistor shown in FIG. 本発明の一実施形態に係る配線材が接続されるサーミスタの一方向側の斜視図である。It is a perspective view of one direction side of the thermistor to which the wiring material which concerns on one Embodiment of this invention is connected. 図６に示したサーミスタの他方向側の斜視図である。It is a perspective view of the other direction side of the thermistor shown in FIG. 参考例に係るサーミスタへの電線からなる配線材の接続構造を示すサーミスタの斜視図である。It is a perspective view of the thermistor which shows the connection structure of the wiring material which consists of an electric wire to the thermistor which concerns on a reference example. 図８に示した電線からなる配線材の端部の斜視図である。It is a perspective view of the edge part of the wiring material which consists of an electric wire shown in FIG. 図８に示した参考例に係る配線材の配線構成を説明する概略配線図である。FIG. 9 is a schematic wiring diagram illustrating a wiring configuration of a wiring material according to the reference example illustrated in FIG. 8.
　以下、本発明に係る好適な実施の形態の例を、図面を参照して説明する。
　図１及び図２に示すように、本実施形態に係る配線材１１は、フレキシブルプリント配線基板（ＦＰＣ）から構成されている。この配線材１１は、直線部１２を有しており、この直線部１２の一側部に、サーミスタ接続分岐線部１３を有している。このサーミスタ接続分岐線部１３は、温度検出器であるサーミスタ１４に接続されている。 Hereinafter, an example of a preferred embodiment according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the wiring member 11 according to the present embodiment is composed of a flexible printed wiring board (FPC). The wiring member 11 has a straight line portion 12, and has a thermistor connection branch line portion 13 on one side portion of the straight line portion 12. The thermistor connection branch line portion 13 is connected to a thermistor 14 that is a temperature detector.
　また、この配線材１１は、バッテリの電圧検出用の配線も有しており、直線部１２におけるサーミスタ接続分岐線部１３と反対側の側部に、複数のバッテリ接続分岐線部１５を有している。これらのバッテリ接続分岐線部１５は、電源装置のバッテリ集合体を構成する複数の図示せぬバッテリの端子を相互に接続する複数のバスバー１６に半田付けして接続されている。 The wiring member 11 also has wiring for battery voltage detection, and has a plurality of battery connection branch line portions 15 on the side portion opposite to the thermistor connection branch line portion 13 in the straight portion 12. ing. These battery connection branch lines 15 are soldered to and connected to a plurality of bus bars 16 that connect a plurality of battery terminals (not shown) constituting a battery assembly of the power supply device.
　このように、この配線材１１は、図３に示すように、一枚のフレキシブルプリント配線基板に、温度検出用配線の回路パターン２１とバッテリ電圧検出用配線の回路パターン２２とを形成し、これらの温度検出用配線とバッテリ電圧検出用配線を一体化している。そして、この配線材１１では、その端部に、単一のコネクタ２３が接続されており、このコネクタ２３が、制御装置等の温度検出回路及び電圧検出回路が設けられた回路基板（図示略）に接続される。 Thus, as shown in FIG. 3, the wiring member 11 forms a circuit pattern 21 for temperature detection wiring and a circuit pattern 22 for battery voltage detection wiring on a single flexible printed wiring board. The temperature detection wiring and the battery voltage detection wiring are integrated. And in this wiring material 11, the single connector 23 is connected to the edge part, and this connector 23 is a circuit board (not shown) provided with temperature detection circuits and voltage detection circuits, such as a control apparatus. Connected to.
　図４に示すように、サーミスタ１４は、内部に温感素子からなる温度検出体が設けられた絶縁樹脂製の矩形ブロック状の本体部３１を有している。この本体部３１には、その両側部から斜め上方へ延在されたアーム部３２が一体に成形され、また、このアーム部３２には、その側部に枝部３３が成形されている。 As shown in FIG. 4, the thermistor 14 has a rectangular block-shaped main body portion 31 made of an insulating resin in which a temperature detection body made of a temperature sensing element is provided. The main body portion 31 is integrally formed with an arm portion 32 extending obliquely upward from both side portions thereof, and the arm portion 32 is formed with a branch portion 33 on a side portion thereof.
　このサーミスタ１４は、アーム部３２がフレーム等に固定されて支持され、本体部３１の底面が、被検出体であるバッテリの表面にアーム部３２の弾性力によって押し付けられる。 The thermistor 14 is supported by the arm portion 32 being fixed to a frame or the like, and the bottom surface of the main body portion 31 is pressed against the surface of the battery, which is the detection target, by the elastic force of the arm portion 32.
　図５から図７に示すように、サーミスタ１４の本体部３１には、その上部に、配線材１１のサーミスタ接続分岐線部１３を接続する配線接続部４１が設けられている。この配線接続部４１には、サーミスタ接続分岐線部１３の延伸方向に、ヒンジ部４２によって回動可能に設けられたカバー４３が連結されている。そこで、このカバー４３は、ヒンジ部４２を中心に回動して配線接続部４１を覆うことができる。また配線接続部４１には、サーミスタ接続分岐線部１３の接続側における両側部に、ロック爪４４が形成されており、カバー４３は、配線接続部４１を覆うように重ねられて閉じた状態において、その両側部がロック爪４４によって係止され、閉じた状態が維持される。また、カバー４３には、逃げ溝４５が形成されており、この逃げ溝４５には、配線接続部４１に重ねられた閉状態において、後述する位置決め係止突起５２が配置される。 As shown in FIG. 5 to FIG. 7, the main body 31 of the thermistor 14 is provided with a wiring connection portion 41 for connecting the thermistor connection branch line portion 13 of the wiring material 11 on the upper portion thereof. The wiring connection portion 41 is connected to a cover 43 that is rotatably provided by a hinge portion 42 in the extending direction of the thermistor connection branch line portion 13. Therefore, the cover 43 can rotate around the hinge portion 42 to cover the wiring connection portion 41. The wire connection portion 41 is formed with lock claws 44 on both sides on the connection side of the thermistor connection branch line portion 13, and the cover 43 is overlaid and closed so as to cover the wire connection portion 41. The both side portions are locked by the lock claws 44, and the closed state is maintained. Further, the cover 43 is formed with a clearance groove 45, and a positioning locking projection 52 described later is disposed in the clearance groove 45 in a closed state superimposed on the wiring connection portion 41.
　配線接続部４１には、本体部３１内の温度検出体から延びる一対のリード部５１が露出されている。また、配線接続部４１には、幅方向の中央位置に、位置決め係止突起５２が突設されている。 A pair of lead portions 51 extending from the temperature detection body in the main body portion 31 are exposed in the wiring connection portion 41. Further, the wiring connection portion 41 is provided with a positioning locking projection 52 at the center position in the width direction.
　図５に示すように、配線接続部４１に接続される配線材１１のサーミスタ接続分岐線部１３には、その接続端１３ａにおける回路パターン２１の端部位置に、一対の接続孔（図示略）が形成されており、これらの接続孔に、配線接続部４１に突出したリード部５１が挿通される。そして、リード部５１と回路パターン２１とが半田付けされ、半田５３によって接合される。 As shown in FIG. 5, the thermistor connection branch line portion 13 of the wiring member 11 connected to the wiring connection portion 41 has a pair of connection holes (not shown) at the end position of the circuit pattern 21 at the connection end 13a. The lead portion 51 protruding from the wiring connection portion 41 is inserted into these connection holes. Then, the lead part 51 and the circuit pattern 21 are soldered and joined by the solder 53.
　また、サーミスタ接続分岐線部１３の接続端１３ａには、回路パターン２１の間に、係止孔５４が形成されており、この係止孔５４には、配線接続部４１に形成された位置決め係止突起５２が嵌合される。 Further, a locking hole 54 is formed between the circuit patterns 21 at the connection end 13 a of the thermistor connection branch line portion 13, and a positioning member formed in the wiring connection portion 41 is formed in the locking hole 54. The stop protrusion 52 is fitted.
　次に、サーミスタ１４を配線材１１のサーミスタ接続分岐線部１３に接続する場合について説明する。
　まず、本体部３１に対してカバー４３を開いた状態において、接続端１３ａの接続孔及び係止孔５４へ、配線接続部４１のリード部５１及び位置決め係止突起５２がそれぞれ挿通するように、配線接続部４１にサーミスタ接続分岐線部１３を配置させる。
　この状態において、リード部５１と回路パターン２１とを半田付けして半田５３によって接合する。 Next, the case where the thermistor 14 is connected to the thermistor connection branch line portion 13 of the wiring member 11 will be described.
First, in a state where the cover 43 is opened with respect to the main body portion 31, the lead portion 51 and the positioning locking protrusion 52 of the wiring connection portion 41 are inserted into the connection hole and the locking hole 54 of the connection end 13a, respectively. The thermistor connection branch line part 13 is arranged in the wiring connection part 41.
In this state, the lead part 51 and the circuit pattern 21 are soldered and joined by the solder 53.
　次に、ヒンジ部４２を中心にカバー４３を回動させ、配線接続部４１を覆うように重ねて閉じる。このようにすると、カバー４３の両側部がロック爪４４によって係止され、このカバー４３が閉じた状態に維持される。 Next, the cover 43 is rotated around the hinge part 42, and is overlapped and closed so as to cover the wiring connection part 41. If it does in this way, both sides of cover 43 will be locked by lock claw 44, and this cover 43 will be maintained in the closed state.
　以上、説明したように、上記実施形態に係る配線材１１の接続構造によれば、サーミスタ１４の配線接続部４１に露出されたリード部５１とフレキシブルプリント配線基板からなる配線材１１の回路パターン２１とが半田付けによって接続された構造を有するので、配線材にリード線を接続してリード線をサーミスタへ半田付けして接続する場合と比較して、リード線の接続工程をなくすことができ、高い接続信頼性を確保しつつ極めて容易にサーミスタ１４に配線材１１を接続することができる。 As described above, according to the connection structure of the wiring member 11 according to the above embodiment, the circuit pattern 21 of the wiring member 11 including the lead portion 51 exposed to the wiring connection portion 41 of the thermistor 14 and the flexible printed wiring board. As a result, the lead wire connection process can be eliminated compared to the case where the lead wire is connected to the wiring material and the lead wire is soldered to the thermistor. The wiring material 11 can be connected to the thermistor 14 very easily while ensuring high connection reliability.
　また、厚さの薄いフレキシブルプリント配線基板からなる配線材１１を用いているので、電線による配線と比べて、配線スペースの削減を図ることができる。
　しかも、配線材１１の係止孔５４に配線接続部４１の位置決め係止突起５２が係止されているので、配線材１１に引っ張り力等が生じてもサーミスタ１４と配線材１１との接続箇所に大きな力が付与するのを防止することができる。また、回路パターン２１にリード部５１が半田付けされた配線材１１の接続端１３ａがカバー４３によって覆われて保持されているので、接続箇所への他の部品等の接触を防止することができる。これにより、サーミスタ１４への配線材１１の接続箇所における接続不良をさらに防止し、接続信頼性を高めることができる。 Moreover, since the wiring material 11 which consists of a thin flexible printed wiring board is used, a wiring space can be reduced compared with the wiring by an electric wire.
In addition, since the positioning locking projection 52 of the wiring connecting portion 41 is locked in the locking hole 54 of the wiring material 11, the connection place between the thermistor 14 and the wiring material 11 even if a tensile force or the like is generated in the wiring material 11. It is possible to prevent a large force from being applied to the surface. Further, since the connection end 13a of the wiring member 11 in which the lead part 51 is soldered to the circuit pattern 21 is covered and held by the cover 43, it is possible to prevent contact of other components or the like with the connection portion. . Thereby, the connection failure in the connection location of the wiring material 11 to the thermistor 14 can be further prevented, and the connection reliability can be improved.
　また、温度検出用配線の回路パターン２１とバッテリ電圧検出用配線の回路パターン２２とがフレキシブルプリント配線基板からなる配線材１１に設けられて一体化されているので、温度検出用の配線とバッテリ電圧検出用の配線を別々に配線する場合と比較して、配線の簡略化によって配線作業性の向上、配線スペースの削減を図ることができる。具体的に述べれば、従前の配線作業では、バッテリ電圧用の配線と電圧検出端子とは加締め圧着する一方、温度検出用の配線とサーミスタとはスプライス接続するという異なった接続方法により接続を行っているため、配線作業に手間を要する。これに対し、本発明に係る配線作業では、バスバー、サーミスタ及びフレキシブルプリント配線基板からなる配線材を組み込んだ電源収容ケースに対し、バスバーと配線材、サーミスタと配線材を夫々同一工程の半田接続で行うことができ、配線作業性の向上を図ることができる。また、制御装置の回路基板等へ接続する接続端も一つとなるので、コネクタ等の接続部品数の削減によるコストダウン及び他の基板等への接続作業性の向上を図ることができる。 In addition, since the temperature detection wiring circuit pattern 21 and the battery voltage detection wiring circuit pattern 22 are provided and integrated on the wiring member 11 made of a flexible printed wiring board, the temperature detection wiring and the battery voltage are integrated. Compared to the case where the detection wiring is separately provided, the wiring workability can be improved and the wiring space can be reduced by simplifying the wiring. Specifically, in the conventional wiring work, the battery voltage wiring and the voltage detection terminal are crimped and crimped, while the temperature detection wiring and the thermistor are connected by different splicing methods. Therefore, it takes time and labor for wiring work. On the other hand, in the wiring work according to the present invention, the bus bar and the wiring material, and the thermistor and the wiring material are connected by solder connection in the same process to the power supply housing case incorporating the wiring material including the bus bar, the thermistor, and the flexible printed wiring board. Thus, the wiring workability can be improved. In addition, since there is only one connection end connected to the circuit board or the like of the control device, the cost can be reduced by reducing the number of connection parts such as connectors, and the connection workability to other boards or the like can be improved.
　ここで、本発明の更なる優位性を説明するため、図８から図１０に参考例を示す。
　図８は参考例に係るサーミスタへの電線からなる配線材の接続構造を示すサーミスタの斜視図、図９は電線からなる配線材の端部の斜視図、図１０は参考例に係る配線材の配線構成を説明する概略配線図である。 Here, in order to explain the further superiority of the present invention, reference examples are shown in FIGS.
FIG. 8 is a perspective view of a thermistor showing a connection structure of a wiring material made of electric wires to a thermistor according to a reference example, FIG. 9 is a perspective view of an end portion of the wiring material made of electric wires, and FIG. It is a schematic wiring diagram explaining a wiring structure.
　図８に示すように、このサーミスタ６１には、配線材である電線６２が接続される。このサーミスタ６１の場合、図９に示すように、接続する電線６２の端末処理を行う。具体的には、電線６２の端部において、電線６２の導体にカシメ材６３によってリード線６４を圧着させるなどして接続し、この接続箇所を、熱収縮チューブなどの保護材６５を装着することにより保護する。このように、電線６２に端末処理を行ったらリード線６４を、サーミスタ６１の端子に半田付けして接続する。 As shown in FIG. 8, the thermistor 61 is connected to an electric wire 62 as a wiring material. In the case of this thermistor 61, as shown in FIG. 9, the terminal process of the electric wire 62 to be connected is performed. Specifically, at the end of the electric wire 62, the lead wire 64 is connected to the conductor of the electric wire 62 by crimping with a caulking material 63, and a protective material 65 such as a heat-shrinkable tube is attached to this connection location. To protect. As described above, when the terminal process is performed on the electric wire 62, the lead wire 64 is soldered to the terminal of the thermistor 61 and connected.
　このように、電線６２からなる配線材をサーミスタ６１へ接続するには、煩雑な電線６２の端末処理作業を伴う。また、電線６２が引っ張られると、接続箇所に大きな力が作用し、接続不良が生じるおそれがある。
　また、このサーミスタ６１では、図１０に示すように、バッテリ電圧検出用の電線６７とは別に、温度検出用の電線６２を配索しなければならず、配線作業の煩雑化及び配線の複雑化を招き、さらに、大きな配線スペースが必要となってしまう。しかも、温度検出用の電線６２及びバッテリ電圧検出用の電線６７のそれぞれの端部にコネクタ６２ａ，６７ａを接続し、これらを制御装置の回路基板にそれぞれ接続しなければならず、部品点数の増加によるコストアップ及び接続作業の煩雑化を招いてしまう。 As described above, connecting the wiring member made of the electric wire 62 to the thermistor 61 involves complicated terminal processing work of the electric wire 62. Further, when the electric wire 62 is pulled, a large force acts on the connection portion, and there is a possibility that a connection failure occurs.
Further, in the thermistor 61, as shown in FIG. 10, a temperature detecting wire 62 must be routed separately from the battery voltage detecting wire 67, which complicates wiring work and makes wiring complicated. In addition, a large wiring space is required. In addition, the connectors 62a and 67a must be connected to the respective ends of the temperature detection wire 62 and the battery voltage detection wire 67, and these must be connected to the circuit board of the control device, respectively, increasing the number of components. This increases the cost and complicates the connection work.
　また、サーミスタ６１の取り付け位置によって電線６２の長さが変わってしまい、サーミスタ６１の品番が増えてしまう。 Also, the length of the electric wire 62 changes depending on the attachment position of the thermistor 61, and the product number of the thermistor 61 increases.
　尚、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。即ち、本発明の骨子を逸脱しない範囲で種々変形して実施することができる。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。 It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. can be made as appropriate. That is, various modifications can be made without departing from the scope of the present invention. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.
　本出願は、２０１０年４月２２日出願の日本特許出願（特願２０１０－０９９１９５）に基づくものであり、その内容はここに参照として取り込まれる。 This application is based on a Japanese patent application filed on April 22, 2010 (Japanese Patent Application No. 2010-099195), the contents of which are incorporated herein by reference.
　本発明による配線材の接続構造によれば、配線材にリード線を接続し半田付けして接続する場合と比較して、リード線の接続工程をなくすことができ、高い接続信頼性を確保しつつ極めて容易に温度検出器に配線材を接続することができ、接続作業性の向上を図ることができる。 According to the wiring material connection structure of the present invention, the lead wire connection process can be eliminated and high connection reliability can be ensured compared to the case where the lead wire is connected to the wiring material and soldered. However, it is very easy to connect the wiring material to the temperature detector, and the connection workability can be improved.
１１　配線材
１３ａ　接続端
１４　サーミスタ（温度検出器）
２１，２２　回路パターン
４１　配線接続部
４３　カバー
５１　リード部
５２　位置決め係止突起（係止突起）
５４　係止孔 11 Wiring material 13a Connection end 14 Thermistor (temperature detector)
21, 22 Circuit pattern 41 Wiring connection portion 43 Cover 51 Lead portion 52 Positioning locking projection
54 Locking hole

Claims (3)

  1. 　電源装置のバッテリの温度を検出する温度検出器への配線材の接続構造であって、
    　前記温度検出器に設けられた配線接続部に、フレキシブルプリント配線基板からなる配線材の接続端が配置され、
    　前記配線接続部に露出されたリード部と前記配線材の回路パターンとが半田付けされる配線材の接続構造。     A wiring material connection structure to a temperature detector for detecting the temperature of the battery of the power supply device,
    In the wiring connection portion provided in the temperature detector, a connection end of a wiring material made of a flexible printed wiring board is arranged,
    A wiring material connection structure in which a lead portion exposed to the wiring connection portion and a circuit pattern of the wiring material are soldered.
  2. 　前記温度検出器は、前記配線接続部に形成された係止突起と、前記配線接続部に対して開閉可能なカバーとを有し、
    　前記配線材の接続端に形成された係止孔が前記係止突起に係止されて位置決めされ、前記配線材は前記カバーによって前記接続端が覆われて前記配線接続部に保持されている請求項１に記載の配線材の接続構造。     The temperature detector has a locking projection formed on the wiring connection portion and a cover that can be opened and closed with respect to the wiring connection portion.
    A locking hole formed at a connection end of the wiring member is locked and positioned by the locking protrusion, and the wiring member is held by the wiring connection portion with the connection end covered by the cover. Item 6. A wiring material connection structure according to Item 1.
  3. 　温度検出用配線の回路パターンとバッテリ電圧検出用配線の回路パターンとが前記配線材に設けられている請求項１または請求項２に記載の配線材の接続構造。 The wiring material connection structure according to claim 1 or 2, wherein a circuit pattern of a temperature detection wiring and a circuit pattern of a battery voltage detection wiring are provided on the wiring material.
PCT/JP2011/059101 2010-04-22 2011-04-12 Connection structure for a wiring material WO2011132570A1 (en)

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