KR102037045B1 - Voltage sensing device of battery-pack for vehicle - Google Patents

Voltage sensing device of battery-pack for vehicle Download PDF

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KR102037045B1
KR102037045B1 KR1020190059858A KR20190059858A KR102037045B1 KR 102037045 B1 KR102037045 B1 KR 102037045B1 KR 1020190059858 A KR1020190059858 A KR 1020190059858A KR 20190059858 A KR20190059858 A KR 20190059858A KR 102037045 B1 KR102037045 B1 KR 102037045B1
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South Korea
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printed circuit
circuit board
flexible
battery pack
hard
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KR1020190059858A
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Korean (ko)
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반지섭
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(주)경신전선
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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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • 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]
    • G01R31/3644—Constructional arrangements
    • 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
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y02T10/7005—

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The present invention relates to a sensing circuit device for a battery pack of an eco-friendly vehicle, which comprises: at least a pair of printed circuit boards having a terminal connected to a battery pack for an eco-friendly vehicle, formed of a hard material, and arranged to face each other; and a flexible printed circuit board for electrically connecting the adjacent printed circuit boards, and formed of a flexible material to allow a line trace to be different in accordance with a shape of the battery pack. According to the present invention, unlike the conventional invention, the terminal connected to the battery pack is mounted on the hard printed circuit board for a voltage check, the adjacent printed circuit boards are connected by the flexible circuit board in a state of arranging the printed circuit boards to face each other, thereby reducing a waste part since a band-shaped flexible circuit board is cut from the provided flexible circuit board. Also, the printed circuit board is mounted on the battery pack, thereby increasing a bonding force of a line for the battery pack.

Description

친환경자동차의 배터리팩용 센싱회로장치{VOLTAGE SENSING DEVICE OF BATTERY-PACK FOR VEHICLE}Sensor circuit device for eco-friendly battery packs {VOLTAGE SENSING DEVICE OF BATTERY-PACK FOR VEHICLE}

본 발명은 친환경자동차의 배터리팩용 센싱회로장치에 관한 것으로서, 더욱 상세하게는 전압 체크 등을 위해 배터리팩에 접속되는 터미널을 경질의 인쇄회로기판에 실장하고, 적어도 한 쌍의 인쇄회로기판을 대향하게 배치한 상태로 이웃한 인쇄회로기판을 연질의 연성회로기판으로 연결함으로써, 제공되는 연성회로보드로부터 띠 형상의 연성회로기판을 절단함에 따라 낭비되는 부분을 줄이고, 인쇄회로기판을 배터리팩에 안착함에 따라 배터리팩에 대한 배선의 결속력을 증가시키기 위한 친환경자동차의 배터리팩용 센싱회로장치에 관한 것이다.The present invention relates to a sensing circuit device for a battery pack of an environmentally friendly vehicle, and more particularly, a terminal connected to the battery pack for checking voltage, mounted on a rigid printed circuit board, and facing at least one pair of printed circuit boards. By connecting neighboring printed circuit boards with flexible flexible circuit boards in a placed state, it reduces waste parts by cutting the band-shaped flexible circuit boards from the provided flexible circuit boards and secures the printed circuit boards to the battery packs. Accordingly, the present invention relates to a sensing circuit device for a battery pack of an environmentally friendly vehicle for increasing the binding force of the wiring to the battery pack.

최근 하이브리드 또는 친환경용 전기자동차(HEV; Hybrid Electric Vehicle)의 보조 동력원으로써 리튬 이온 폴리머 배터리팩에 대한 개발이 진행되어 지고 있다. 이 리튬 이온 폴리머 배터리팩은 Ni-MH(니켈-금속수소) 전지에 비해 전압이 3배 이상 높으며, 상온에서 출력이 매우 높은 것으로 알려져 있다.Recently, development of a lithium ion polymer battery pack is being progressed as an auxiliary power source of a hybrid or environmentally friendly electric vehicle (HEV). This lithium-ion polymer battery pack is more than three times higher in voltage than a Ni-MH (nickel-metal hydride) battery and is known to have a very high output at room temperature.

따라서, 고출력 고밀도 전지인 리튬 이온 폴리머 배터리팩은 자동차 패키징 및 출력 특성을 보완할 수 있는 전지로 개발이 진행되어지고 있다.Therefore, a lithium ion polymer battery pack, which is a high output high density battery, is being developed as a battery capable of supplementing automotive packaging and output characteristics.

연료 전지 하이브리드 전기자동차(FCHEV)는 주동력원으로 스택(stack)을 사용하며, 보조 동력원으로 리튬 이온 폴리머 배터리팩을 사용하게 된다. 리튬 이온 폴리머 배터리팩은 리튬 이온 폴리머 전지에 직렬/병렬로 연결되어 원하는 전압 범위 및 전지 용량을 가지게 되며, 전지 관리를 위해 배터리 관리 시스템(Battery Management System, 이하 BMS라 함), 퓨즈, 안전 스위치 등이 있고, 친환경자동차과의 인터페이스(interface)를 위해 릴레이(relay)와 케이블 커넥터들로 구성되어 있다.The fuel cell hybrid electric vehicle (FCHEV) uses a stack as a main power source and a lithium ion polymer battery pack as an auxiliary power source. Lithium-ion polymer battery packs are connected in series / parallel to Li-ion polymer batteries to have the desired voltage range and battery capacity.The battery management system (Battery Management System, BMS), fuses, safety switches, etc. are used for battery management. It consists of relays and cable connectors for an interface with a green vehicle.

그리고, 연료 전지 하이브리드 전기자동차는 주동력원인 스택에 의해 구동시 가속, 출발 등에 리튬 이온 폴리머 배터리팩의 동력을 합하여 모터를 구동하게 되어 있다.In addition, the fuel cell hybrid electric vehicle is configured to drive a motor by combining the power of a lithium ion polymer battery pack with acceleration, start, and the like when driven by a stack as a main power source.

또한, 리튬 이온 폴리머 배터리팩의 출력 성능은 상온(25℃)을 기준할 때 Ni-MH의 출력이 20kW인 것에 비해 리튬 이온 폴리머 배터리팩은 27kW로 출력 성능이 매우 우수하다. 따라서 연료 전지 하이브리드 전기자동차의 가속 성능 및 최고속도 등에 좋은 영향을 끼칠 수 있다.In addition, the output performance of the lithium ion polymer battery pack is based on the room temperature (25 ℃) Ni-MH output is 20kW, compared to the lithium ion polymer battery pack 27kW output performance is very good. Therefore, the fuel cell hybrid electric vehicle may have a good influence on acceleration performance and maximum speed.

아울러, 친환경자동차용 리튬 이온 폴리머 배터리팩은 각 셀마다 전압 측정 또는 전원(신호) 전송을 위해 에프피씨비(FPCB)를 커넥터에 연결한다.In addition, the lithium-ion polymer battery pack for environmentally friendly cars connects FPCBs to connectors for voltage measurement or power (signal) transmission for each cell.

관련기술로는, 국내공개특허공보 제10-2012-0003432호(발명의 명칭: 전지 모듈, 배터리 시스템 및 전동 차량)가 제안된 바 있다.As a related technology, Korean Patent Publication No. 10-2012-0003432 (name of the invention: a battery module, a battery system and an electric vehicle) has been proposed.

상기한 기술구성은 본 발명의 이해를 돕기 위한 배경기술로서, 본 발명이 속하는 기술분야에서 널리 알려진 종래기술을 의미하는 것은 아니다.The above technical configuration is a background art for helping understanding of the present invention, and does not mean a conventional technology well known in the art.

기존의 친환경자동차용 배터리팩에 센싱용 배선을 위해서는, 연성인쇄회로기판에 터미널을 연결하는데, 정해진 크기의 연성인쇄회로보드에 대략 'H'자 형상의 연성인쇄회로기판을 절개함으로써, 연성인쇄회로보드는 버려지게 되어 낭비되는 부분(영역)이 많음에 따라 제조 원가가 상승하는 문제점이 있다. In order to sense wiring to existing eco-friendly battery packs for automobiles, the terminal is connected to a flexible printed circuit board. The flexible printed circuit board is cut by cutting an approximately 'H' shaped flexible printed circuit board into a flexible printed circuit board of a predetermined size. As the board is discarded, there is a problem that the manufacturing cost increases as there are many waste parts (areas).

그리고, 기존의 친환경자동차용 배터리팩의 배선은 연성인쇄회로기판에 터미널을 연결함에 따라, 친환경자동차의 진동으로 인해, 연성인쇄회로기판에 진동이 발생함으로써, 터미널은 접속 불량 또는 내구성의 저하를 초래하는 문제점이 있다.In addition, the wiring of the conventional eco-friendly battery pack for the vehicle is connected to the flexible printed circuit board by the terminal, and the vibration occurs in the flexible printed circuit board due to the vibration of the eco-friendly vehicle, resulting in poor connection or deterioration of durability of the terminal. There is a problem.

따라서, 이를 개선할 필요성이 요청된다.Therefore, there is a need for improvement.

본 발명은 상기와 같은 문제점들을 개선하기 위하여 안출된 것으로서, 전압 체크 등을 위해 배터리팩에 접속되는 터미널을 경질의 인쇄회로기판에 실장하고, 적어도 한 쌍의 인쇄회로기판을 대향하게 배치한 상태로 이웃한 인쇄회로기판을 연질의 띠 형상인 연성회로기판으로 연결함으로써, 제공되는 연성회로보드로부터 띠 형상의 연성회로기판을 절단함에 따라 낭비되는 부분을 줄여 제조 원가를 저감하고자 하는 친환경자동차의 배터리팩용 센싱회로장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, the terminal connected to the battery pack for checking the voltage, such as mounted on a rigid printed circuit board, at least a pair of printed circuit boards are arranged facing By connecting neighboring printed circuit boards with flexible band-shaped flexible circuit boards, battery packs for eco-friendly cars that reduce manufacturing costs by cutting the band-shaped flexible circuit boards from the provided flexible circuit boards The purpose is to provide a sensing circuit device.

본 발명은 경질인 인쇄회로기판을 배터리팩에 안착함에 따라 배터리팩에 대한 배선의 결속력을 증가시키고자 하는 친환경자동차의 배터리팩용 센싱회로장치를 제공하는데 그 목적이 있다.The present invention is to provide a sensing circuit device for a battery pack of an environmentally friendly vehicle to increase the binding strength of the wiring to the battery pack by mounting a rigid printed circuit board to the battery pack.

본 발명에 따른 친환경자동차의 배터리팩용 센싱회로장치는: 친환경자동차용 배터리팩에 접속되는 터미널을 실장하고, 경질로 이루어지며, 적어도 한 쌍으로 이루어져 대향하게 배치되는 판 형상으로 인쇄회로기판; 및 이웃한 상기 인쇄회로기판끼리를 전기적으로 연결하고, 상기 배터리팩의 형상에 따라 배선 궤적을 달리할 수 있도록 연질로 이루어진 연성인쇄회로기판을 포함한다.According to an aspect of the present invention, there is provided a sensing circuit device for a battery pack for an eco-friendly vehicle, including: a terminal mounted on a terminal connected to an environmentally friendly battery pack for a vehicle, made of hard, and having at least one pair of printed circuit boards; And flexible printed circuit boards that are electrically connected to each other to the adjacent printed circuit boards, and are made soft so as to change wiring traces according to the shape of the battery pack.

상기 연성인쇄회로기판은 대향하는 상기 인쇄회로기판 각각의 외측면에 접속되는 것을 특징으로 한다.The flexible printed circuit board is connected to an outer surface of each of the opposing printed circuit board.

상기 인쇄회로기판은 외측 상부에 경질도체부재를 노출되게 구비하고, 상기 연성인쇄회로기판은 축 방향으로 양쪽 가장자리의 동일한 일측에 연성도체부재를 노출되게 구비하며, 상기 경질도체부재와 상기 연성도체부재는 접촉된 후 접착 처리되어 전기적으로 연결되는 것을 특징으로 한다.The printed circuit board is provided to expose the rigid conductor member on the outer upper portion, the flexible printed circuit board is provided to expose the flexible conductor member on the same side of both edges in the axial direction, the hard conductor member and the flexible conductor member After the contact is characterized in that the adhesive treatment is electrically connected.

상기 인쇄회로기판은 상기 경질도체부재가 노출되는 부위의 상부에 에지리브를 연장 형성하여 상기 연성인쇄회로기판과의 접촉 면적을 증가시키고, 상기 에지리브와 상기 연성인쇄회로기판은 결속부재에 의해 결속되는 것을 특징으로 한다.The printed circuit board is formed by extending edge ribs on the portion where the hard conductor member is exposed to increase the contact area with the flexible printed circuit board, and the edge rib and the flexible printed circuit board are bound by a binding member. It is characterized by.

이상에서 설명한 바와 같이, 본 발명에 따른 친환경자동차의 배터리팩용 센싱회로장치는 종래 기술과 달리 전압 체크 등을 위해 배터리팩에 접속되는 터미널을 경질의 인쇄회로기판에 실장하고, 적어도 한 쌍의 인쇄회로기판을 대향하게 배치한 상태로 이웃한 인쇄회로기판을 연질의 띠 형상인 연성회로기판으로 연결함으로써, 제공되는 연성회로보드로부터 띠 형상의 연성회로기판을 절단함에 따라 낭비되는 부분을 줄여 제조 원가를 저감할 수 있다.As described above, the battery pack sensing circuit device for an eco-friendly vehicle according to the present invention, unlike the prior art, a terminal connected to the battery pack for checking voltage, etc. mounted on a rigid printed circuit board, at least one pair of printed circuits By connecting neighboring printed circuit boards with a flexible band-shaped flexible circuit board with the substrates arranged facing each other, the manufacturing cost is reduced by reducing the waste of cutting the band-shaped flexible circuit board from the provided flexible circuit board. Can be reduced.

본 발명은 경질인 인쇄회로기판을 배터리팩에 안착함에 따라 배터리팩에 대한 배선의 결속력을 증가시킬 수 있다. The present invention can increase the binding force of the wiring to the battery pack by mounting the rigid printed circuit board to the battery pack.

도 1은 본 발명의 일 실시예에 따른 친환경자동차의 배터리팩의 사시도이다.
도 2는 본 발명의 일 실시예에 따른 친환경자동차의 배터리팩으로부터 센싱회로장치를 분리한 분해 사시도이다.
도 3은 본 발명의 일 실시예에 따른 친환경자동차의 배터리팩용 센싱회로장치의 배면 사시도이다.
도 4는 본 발명의 일 실시예에 따른 센싱회로장치의 분해 사시도이다.
도 5는 본 발명의 일 실시예에 따른 센싱회로장치의 요부 사시도이다.
도 6은 본 발명의 일 실시예에 따른 센싱회로장치의 요부 단면도이다.
도 7은 본 발명의 일 실시예에 따른 센싱회로장치 중 연성인쇄회로기판을 연성인쇄회로보드로부터 절취하는 상태도이다.1 is a perspective view of a battery pack of an eco-friendly vehicle according to an embodiment of the present invention.
2 is an exploded perspective view of a sensing circuit device separated from a battery pack of an eco-friendly vehicle according to an embodiment of the present invention.
3 is a rear perspective view of a sensing circuit device for a battery pack of an eco-friendly vehicle according to an embodiment of the present invention.
4 is an exploded perspective view of a sensing circuit device according to an embodiment of the present invention.
5 is a perspective view illustrating main parts of a sensing circuit device according to an exemplary embodiment of the present invention.
6 is a cross-sectional view illustrating main parts of a sensing circuit device according to an exemplary embodiment of the present invention.
7 is a diagram illustrating a state in which a flexible printed circuit board is cut from a flexible printed circuit board in a sensing circuit device according to an embodiment of the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 친환경자동차의 배터리팩용 센싱회로장치의 실시예를 설명한다. 이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of a battery pack sensing circuit device for an eco-friendly vehicle according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

도 1은 본 발명의 일 실시예에 따른 친환경자동차의 배터리팩의 사시도고, 도 2는 본 발명의 일 실시예에 따른 친환경자동차의 배터리팩으로부터 센싱회로장치를 분리한 분해 사시도이며, 도 3은 본 발명의 일 실시예에 따른 친환경자동차의 배터리팩용 센싱회로장치의 배면 사시도이다.1 is a perspective view of a battery pack of an environmentally friendly vehicle according to an embodiment of the present invention, Figure 2 is an exploded perspective view of a sensing circuit device separated from the battery pack of an environmentally friendly vehicle according to an embodiment of the present invention, Figure 3 is Back perspective view of a sensing circuit device for a battery pack of an eco-friendly vehicle according to an embodiment of the present invention.

도 4는 본 발명의 일 실시예에 따른 센싱회로장치의 분해 사시도이고, 도 5는 본 발명의 일 실시예에 따른 센싱회로장치의 요부 사시도이며, 도 6은 본 발명의 일 실시예에 따른 센싱회로장치의 요부 단면도이다.4 is an exploded perspective view of a sensing circuit device according to an embodiment of the present invention, FIG. 5 is a perspective view of main parts of the sensing circuit device according to an embodiment of the present invention, and FIG. 6 is a sensing diagram according to an embodiment of the present invention. Main part sectional drawing of a circuit device.

도 7은 본 발명의 일 실시예에 따른 센싱회로장치 중 연성인쇄회로기판을 연성인쇄회로보드로부터 절취하는 상태도이다.7 is a diagram illustrating a state in which a flexible printed circuit board is cut from a flexible printed circuit board in a sensing circuit device according to an exemplary embodiment of the present invention.

도 1 내지 도 7을 참조하면, 본 발명의 일 실시예에 따른 친환경자동차의 배터리팩(10)용 센싱회로장치(100)는 경질의 인쇄회로기판(PCB,120) 및 연질의 연성인쇄회로기판(FPCB,130)을 포함한다.1 to 7, the sensing circuit device 100 for a battery pack 10 of an environmentally friendly vehicle according to an embodiment of the present invention includes a rigid printed circuit board (PCB) 120 and a flexible flexible printed circuit board. (FPCB, 130).

특히, 인쇄회로기판(120)은 적어도 마주하는 한 쌍으로 구비되고, 각각은 복수 개의 터미널(110)을 실장한다. 이때, 인쇄회로기판(120)이 경질로 이루어짐에 따라, 터미널(110)은 인쇄회로기판(120)에 견고하게 실장될 수 있다.In particular, the printed circuit board 120 is provided in at least one pair facing each other, each mounted with a plurality of terminals (110). In this case, as the printed circuit board 120 is made of hard, the terminal 110 may be firmly mounted on the printed circuit board 120.

아울러, 터미널(110) 각각은 친환경자동차용 배터리팩(10)의 설정 위치에 접속된다. 특히, 본 발명에 따른 센싱회로장치(100)는 배터리팩(10)의 전압 체크 또는 전원공급이나 신호전송을 위해 구비된다.In addition, each of the terminals 110 is connected to a setting position of the battery pack 10 for eco-friendly vehicles. In particular, the sensing circuit device 100 according to the present invention is provided for voltage check or power supply or signal transmission of the battery pack 10.

인쇄회로기판(120)은 상호 대향하게 배치되는 판 형상으로 이루어지며, 평면상 다양한 형상으로 이루어질 수 있다. 인쇄회로기판(120)은 비노출되어 절연되는 경질회로패턴(121)을 형성한다. 즉, 인쇄회로기판(120)은 상호 대향하는 표면에 반대되는 표면(일측)에 경질회로패턴(121)을 형성한다. 그리고, 경질회로패턴(121)은 경질절연외피(122)에 의해 보호된다. 경질절연외피(122)는 인쇄회로기판(120)에 코팅되어 형성됨으로써 경질회로패턴(121)을 덮어 보호한다.The printed circuit board 120 may be formed in a plate shape disposed to face each other, and may be formed in various shapes on a plane. The printed circuit board 120 forms a hard circuit pattern 121 that is not exposed and insulated. That is, the printed circuit board 120 forms the hard circuit pattern 121 on the surface (one side) opposite to the surface facing each other. The hard circuit pattern 121 is protected by the hard insulating jacket 122. The hard insulating sheath 122 is formed by being coated on the printed circuit board 120 to cover and protect the hard circuit pattern 121.

특히, 인쇄회로기판(120)은 배터리팩(10)의 양측 가장자리에 배치된다.In particular, the printed circuit board 120 is disposed at both edges of the battery pack 10.

그리고, 인쇄회로기판(120)은 외부로부터 전원 또는 신호를 전달을 수 있도록 적어도 어느 하나에 입력포트(125)를 구비한다. 입력포트(125)는 경질회로패턴(121)과 전기적으로 연결된다.The printed circuit board 120 includes an input port 125 in at least one of the printed circuit boards 120 to transmit power or signals from the outside. The input port 125 is electrically connected to the hard circuit pattern 121.

또한, 연성인쇄회로기판(130)(120)은 이웃하게 배치되어 대향하는 인쇄회로기판(120)끼리를 전기적으로 연결하는 역할을 한다. 그래서, 연성인쇄회로기판(130)은 배터리팩(10)의 상부를 가로질러 배치된다.In addition, the flexible printed circuit boards 130 and 120 are disposed adjacent to each other to electrically connect the opposing printed circuit boards 120 to each other. Thus, the flexible printed circuit board 130 is disposed across the top of the battery pack 10.

특히, 연성인쇄회로기판(130)은 플렉시블(flexible)한 재질의 띠(밴드) 형상으로 이루어져 배터리팩(10)의 상부 형상에 따라 배선 궤적을 달리할 수 있음에 따라 배선을 자유롭게 실시할 수 있다.In particular, the flexible printed circuit board 130 has a flexible band shape, and thus wiring can be freely performed according to the wiring trajectory according to the upper shape of the battery pack 10. .

아울러, 연성인쇄회로기판(130)은 상측면 또는 하측면(일측)에 연성회로패턴(131)을 형성한다. 그리고, 연성회로패턴(131)은 연성절연외피(132)에 의해 보호된다. 연성절연외피(132)는 연성인쇄회로기판(130)에 코팅되어 형성됨으로써 연성회로패턴(131)을 덮어 보호한다.In addition, the flexible printed circuit board 130 forms the flexible circuit pattern 131 on the upper side or the lower side (one side). The flexible circuit pattern 131 is protected by the flexible insulating envelope 132. The flexible insulating envelope 132 is formed by being coated on the flexible printed circuit board 130 to cover and protect the flexible circuit pattern 131.

특히, 연성인쇄회로기판(130)은 대향하는 인쇄회로기판(120) 각각의 외측면에 전기적으로 접속된다. In particular, the flexible printed circuit board 130 is electrically connected to an outer surface of each of the opposing printed circuit boards 120.

이는, 연성인쇄회로기판(130)이 상호 대향하는 인쇄회로기판(120)의 각 내측면에 전기적으로 접속시 축 방향으로 당겨지는 장력에 의해 인쇄회로기판(120)과 분리되는 것을 방지하기 위함이다. 즉, 연성인쇄회로기판(130)은 축 방향으로 양측이 절곡되며 대응되는 인쇄회로기판(120)의 외측면에 전기적으로 연결됨으로써 당겨지는 장력을 상쇄하거나 저감할 수 있다.This is to prevent the flexible printed circuit board 130 from being separated from the printed circuit board 120 by the tension pulled in the axial direction when the flexible printed circuit board 130 is electrically connected to the respective inner surfaces of the opposing printed circuit board 120. . That is, the flexible printed circuit board 130 may be bent in both sides in the axial direction and may be offset or reduced in tension by being electrically connected to the outer surface of the corresponding printed circuit board 120.

한편, 인쇄회로기판(120)의 경질회로패턴(121)과 연성인쇄회로기판(130)의 연성회로패턴(131)이 안정적으로 접촉되어야 한다.Meanwhile, the hard circuit pattern 121 of the printed circuit board 120 and the flexible circuit pattern 131 of the flexible printed circuit board 130 should be stably in contact with each other.

이를 위해, 인쇄회로기판(120)은 일측 상부의 경질절연외피(122) 일부를 절개한 절개부(124)를 형성한다. 절개부(124)에 의해, 경질회로패턴(121)과 연결되는 경질도체부재(123)가 노출된다.To this end, the printed circuit board 120 forms a cutout 124 in which a portion of the hard insulating jacket 122 is cut off at one side. By the cutout 124, the hard conductor member 123 connected to the hard circuit pattern 121 is exposed.

마찬가지로, 연성인쇄회로기판(130)은 경질도체부재(123)에 대응되는 일측의 연성절연외피(132)를 절개하여 노출부(134)를 형성한다. 노출부(134)에 의해, 연성회로패턴(131)과 연결되는 연성도체부재(133)가 노출된다.Similarly, the flexible printed circuit board 130 cuts the flexible insulating sheath 132 on one side corresponding to the hard conductor member 123 to form the exposed portion 134. By the exposed part 134, the flexible conductor member 133 connected to the flexible circuit pattern 131 is exposed.

물론, 절개부(124)와 노출부(134)의 크기나 위치는 한정하지 않는다.Of course, the size or position of the cutout 124 and the exposed portion 134 is not limited.

아울러, 절개부(124)와 노출부(134)를 통해, 경질도체부재(123)와 연성도체부재(133)가 일대일 접촉된다. 이 후, 접착제(135)가 대응되는 경질도체부재(123)와 연성도체부재(133)를 접착 처리한다. 그래서, 경질회로패턴(121)과 연성회로패턴(131)은 견고하게 전기적으로 연결된다.In addition, the hard conductor member 123 and the flexible conductor member 133 are in one-to-one contact through the cutout 124 and the exposed portion 134. Subsequently, the hard conductor member 123 and the soft conductor member 133 to which the adhesive 135 corresponds are adhesively treated. Thus, the hard circuit pattern 121 and the flexible circuit pattern 131 is firmly electrically connected.

이때, 접착제(135)가 도전성 테이프일 경우, 이웃하게 배치되는 경질도체부재(123)끼리 또는 이웃하게 배치되는 연성도체부재(133)끼리가 접착제(135)로 접착된다. 이 경우, 접착제(135)는 이웃한 경질도체부재(123)끼리 또는 이웃한 연성도체부재(133)끼리 전기가 흐리지 않고, 일대일 대응되는 경질도체부재(123)와 연성도체부재(133)를 전기적으로 연결하는 특성을 갖는다. 이로 인해, 대응되는 경질도체부재(123)와 연성도체부재(133)의 전기적 연결을 위한 접촉 작업이 용이하다. 물론, 일대일 대응되는 경질도체부재(123)와 연성도체부재(133)는 다양한 방식에 의해 전기적으로 연결될 수 있다. At this time, when the adhesive 135 is a conductive tape, the hard conductor members 123 disposed adjacent to each other or the flexible conductor members 133 disposed adjacent to each other are bonded to the adhesive 135. In this case, the adhesive 135 does not blur electricity between neighboring hard conductor members 123 or neighboring flexible conductor members 133, and electrically connects the hard conductor members 123 and the flexible conductor member 133 to one-to-one correspondence. Has the property of connecting. Thus, the contact operation for the electrical connection of the corresponding rigid conductor member 123 and the flexible conductor member 133 is easy. Of course, the one-to-one corresponding hard conductor member 123 and the flexible conductor member 133 may be electrically connected in various ways.

특히, 인쇄회로기판(120)은 경질도체부재(123)가 노출되는 부위의 상부 가장자리에 에지리브(140)를 연장 형성한다. 그래서, 연성인쇄회로기판(130)은 축 방향을 따라 가장자리가 절곡되며 에지리브(140)에 접한 상태로 인쇄회로기판(120)과 전기적으로 연결됨으로써, 인쇄회로기판(120)과 연성인쇄회로기판(130)의 접촉 면적이 증가하게 된다. 이로써, 연성인쇄회로기판(130)에 작용하는 축 인장력이 상쇄 또는 현저히 저감되고, 연성인쇄회로기판(130)과 인쇄회로기판(120) 간의 전기적 연결 내구성이 증가하게 된다.In particular, the printed circuit board 120 extends the edge ribs 140 at the upper edge of the portion where the hard conductor member 123 is exposed. Thus, the flexible printed circuit board 130 is bent along the axial direction and electrically connected to the printed circuit board 120 in contact with the edge ribs 140, whereby the printed circuit board 120 and the flexible printed circuit board 130 are provided. The contact area of 130 is increased. As a result, the axial tensile force acting on the flexible printed circuit board 130 is canceled or significantly reduced, and the electrical connection durability between the flexible printed circuit board 130 and the printed circuit board 120 is increased.

아울러, 인쇄회로기판(120)에 대한 연성인쇄회로기판(130)의 전기적 연결 부위의 흔들림이 방지되도록, 에지리브(140)와 이에 접하는 연성인쇄회로기판(130)은 결속부재(150)에 의해 결속된다. 이때, 결속부재(150)는 클립이나 테이프 또는 밴드 케이블 등 다양하게 적용 가능하다.In addition, the edge rib 140 and the flexible printed circuit board 130 in contact with the flexible printed circuit board 130 to prevent the shaking of the electrical connection portion of the flexible printed circuit board 130 to the printed circuit board 120 by the binding member 150. Bound. At this time, the binding member 150 may be applied in various ways, such as a clip, a tape or a band cable.

따라서, 도 7을 참조하여, 연성인쇄회로기판(130)은 경질의 인쇄회로기판(120)과 전기적으로 연결하도록 띠 형상으로 이루어짐에 따라, 기존 대비 연성인쇄회로보드(20)로부터 최대한 많은 개수의 연성인쇄회로기판(130)이 절단되어 만들어 질 수 있기 때문에, 원가 절감이 실현된다. Therefore, referring to FIG. 7, as the flexible printed circuit board 130 is formed in a band shape to be electrically connected to the rigid printed circuit board 120, the maximum number of flexible printed circuit boards 120 is compared with the conventional flexible printed circuit board 20. Since the flexible printed circuit board 130 may be cut and made, cost reduction is realized.

그리고, 경질의 인쇄회로기판(120)이 배터리팩(10)에 고정 장착됨에 따라, 센싱회로장치(100)가 배터리팩(10)에 견고하게 고정될 수 있다. 아울러, 터미널(110)이 경질의 인쇄회로기판(120)에 실장됨으로써, 터미널(110)이 인쇄회로기판(120)으로부터 용이하게 분리되는 것이 방지됨에 따라, 터미널(110)의 내구성이 증대된다.As the rigid printed circuit board 120 is fixedly mounted to the battery pack 10, the sensing circuit device 100 may be firmly fixed to the battery pack 10. In addition, since the terminal 110 is mounted on the rigid printed circuit board 120, the terminal 110 is prevented from being easily separated from the printed circuit board 120, thereby increasing durability of the terminal 110.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: 배터리팩 100: 센싱회로장치
110: 터미널 120: 인쇄회로기판
121: 경질회로패턴 122: 경질절연외피
123: 경질도체부재 124: 절개부
130: 연성인쇄회로기판 131: 연성회로패턴
132: 연성절연외피 133: 연성도체부재
134: 노출부 140: 에지리브
150: 결속부재10: battery pack 100: sensing circuit device
110: terminal 120: printed circuit board
121: hard circuit pattern 122: hard insulation jacket
123: hard conductor member 124: incision
130: flexible printed circuit board 131: flexible circuit pattern
132: flexible insulation jacket 133: flexible conductor member
134: exposed portion 140: edge rib
150: binding member

Claims (4)

친환경자동차용 배터리팩에 접속되는 터미널을 실장하고, 경질로 이루어지며, 적어도 한 쌍으로 이루어져 대향하게 배치되는 판 형상으로 인쇄회로기판; 및
상기 배터리팩의 형상에 따라 배선 궤적을 달리할 수 있도록 연질로 이루어진 연성인쇄회로기판을 포함하고,
상기 인쇄회로기판은 상호 대향하는 표면에 반대되는 표면에 경질회로패턴을 형성하며, 상기 연성인쇄회로기판은 상측면 또는 하측면에 연성회로패턴을 구비하여 대응되는 상기 경질회로패턴에 접속됨으로써, 상기 연성인쇄회로기판은 축 방향으로 양측이 절곡되며 대응되는 상기 인쇄회로기판의 외측면에 전기적으로 연결됨에 따라 장력에 대한 지지력이 증가되고,
상기 연성인쇄회로기판은 상기 배터리팩의 상부를 가로질러 배치되어, 일측이 대향하는 한 쌍의 상기 인쇄회로기판 중 어느 하나에 전기적으로 연결되며, 타측이 다른 하나에 전기적으로 연결되고,
상기 인쇄회로기판은 상기 경질회로패턴을 보호하는 경질절연외피 일부를 절개한 절개부를 형성함으로써 상기 경질회로패턴과 연결되는 경질도체부재가 노출되며, 상기 연성인쇄회로기판은 상기 경질도체부재에 대응되는 일측의 연성절연외피를 절개하여 노출부를 형성함으로써 상기 연성회로패턴과 연결되는 연성도체부재가 노출되고,
상기 경질도체부재와 상기 연성도체부재는 접촉된 후 접착 처리되어 전기적으로 일대일 접촉되는 것을 특징으로 하는 친환경자동차의 배터리팩용 센싱회로장치.
A printed circuit board mounted on a terminal connected to a battery pack for an environmentally friendly vehicle, made of hard, and formed in at least one pair to face each other; And
It includes a flexible printed circuit board made of a flexible so as to vary the wiring trajectory according to the shape of the battery pack,
The printed circuit board forms a hard circuit pattern on a surface opposite to a surface facing each other, and the flexible printed circuit board is provided with a flexible circuit pattern on an upper side or a lower side thereof to be connected to the corresponding hard circuit pattern. As the flexible printed circuit board is bent at both sides in the axial direction and is electrically connected to the outer side of the corresponding printed circuit board, a bearing force against tension is increased.
The flexible printed circuit board is disposed across the top of the battery pack, is electrically connected to any one of the pair of the printed circuit board facing one side, the other side is electrically connected to the other,
The printed circuit board may expose a hard conductor member connected to the hard circuit pattern by forming a cutout in which a portion of the hard insulating sheath protecting the hard circuit pattern is cut, and the flexible printed circuit board corresponds to the hard conductor member. By cutting the flexible insulating sheath on one side to form an exposed portion, the flexible conductor member connected to the flexible circuit pattern is exposed.
The hard conductor member and the flexible conductor member is in contact with each other after the adhesive treatment is a battery pack sensing circuit device for an environmentally friendly vehicle, characterized in that the electrical contact.
삭제delete 삭제delete 제 1항에 있어서,
상기 인쇄회로기판은 상기 경질도체부재가 노출되는 부위의 상부에 에지리브를 연장 형성하여 상기 연성인쇄회로기판과의 접촉 면적을 증가시키고,
상기 에지리브와 상기 연성인쇄회로기판은 결속부재에 의해 결속되는 것을 특징으로 하는 친환경자동차의 배터리팩용 센싱회로장치. The method of claim 1,
The printed circuit board is formed by extending edge ribs on the portion of the rigid conductor member exposed to increase the contact area with the flexible printed circuit board,
The edge rib and the flexible printed circuit board is a battery pack sensing circuit device for an eco-friendly vehicle, characterized in that the binding by the binding member.
KR1020190059858A 2019-05-22 2019-05-22 Voltage sensing device of battery-pack for vehicle KR102037045B1 (en)

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