KR102116301B1 - Voltage sensing device of battery-pack for vehicle - Google Patents

Voltage sensing device of battery-pack for vehicle Download PDF

Info

Publication number
KR102116301B1
KR102116301B1 KR1020190151816A KR20190151816A KR102116301B1 KR 102116301 B1 KR102116301 B1 KR 102116301B1 KR 1020190151816 A KR1020190151816 A KR 1020190151816A KR 20190151816 A KR20190151816 A KR 20190151816A KR 102116301 B1 KR102116301 B1 KR 102116301B1
Authority
KR
South Korea
Prior art keywords
printed circuit
circuit board
battery pack
flexible
terminal
Prior art date
Application number
KR1020190151816A
Other languages
Korean (ko)
Inventor
이해권
Original Assignee
주식회사 경신전선
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 경신전선 filed Critical 주식회사 경신전선
Priority to KR1020190151816A priority Critical patent/KR102116301B1/en
Application granted granted Critical
Publication of KR102116301B1 publication Critical patent/KR102116301B1/en

Links

Images

Classifications

    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • H01M2/10—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/79—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2458—Electrical interconnections between terminal blocks
    • 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
    • B60Y2200/91—Electric vehicles
    • 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
    • B60Y2200/92—Hybrid vehicles
    • 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
    • Y02T90/34—
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Landscapes

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

Abstract

The present invention relates to a sensing circuit device for a battery pack of an environmentally-friendly car, wherein the sensing circuit device comprises: at least a pair of printed circuit boards which are composed to be rigid and to which a terminal connected to the battery pack is mounted; a flexible printed circuit board which is composed to be soft so that neighboring printed circuit boards can be electrically connected to each other and a wiring trajectory can be changed according to the shape of the battery pack; a bottom cover which protects the printed circuit boards and exposes the terminal to the outside; and a tension reduction unit which reduces, by the flexible printed circuit board electrically connected to the surfaces of the printed circuit boards, tension generated in the upward direction on the corresponding surface of the printed circuit boards. Compared to the conventional art, according to the present invention, a terminal connected to a battery pack for voltage check or the like is mounted on a rigid printed circuit board, and neighboring printed circuit boards are connected to a soft flexible circuit board while at least a pair of printed circuit boards are arranged to face each other so that a part wasted when cutting a strip-shaped flexible circuit board from a provided flexible circuit board can be reduced and it is possible to prevent the vulnerability in which a flexible printed circuit board adhering to a printed circuit board is separated when an external force acts in the upper direction of the printed circuit board through a tension reduction unit.

Description

친환경자동차의 배터리팩용 센싱회로장치{VOLTAGE SENSING DEVICE OF BATTERY-PACK FOR VEHICLE}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 줄일 수 있고, 장력저감부를 통해 인쇄회로기판에 접착된 연성인쇄회로기판이 인쇄회로기판의 상부 방향으로 외력이 작용시 분리되는 취약성을 방지하기 위한 친환경자동차의 배터리팩용 센싱회로장치에 관한 것이다.The present invention relates to a sensing circuit device for a battery pack of an eco-friendly vehicle, and more specifically, a terminal connected to the battery pack is mounted on a rigid printed circuit board to check voltage, etc., to face at least one pair of printed circuit boards. By connecting adjacent printed circuit boards with a flexible flexible circuit board in an arranged state, it is possible to reduce wasted parts by cutting the strip-shaped flexible circuit board from the provided flexible circuit board, and the printed circuit board can be reduced through a tension reducing unit. The flexible printed circuit board adhered to the upper surface of the printed circuit board relates to a sensing circuit device for a battery pack of an eco-friendly vehicle to prevent the vulnerability of separation when an external force is applied.

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, a lithium-ion polymer battery pack has been developed as an auxiliary power source for a hybrid or eco-friendly electric vehicle (HEV). This lithium ion polymer battery pack has a voltage that is three times higher than that of a Ni-MH (nickel-metallic hydrogen) 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.Accordingly, a lithium ion polymer battery pack, which is a high-power high-density battery, is being developed as a battery that can complement automobile 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.A 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. The lithium ion polymer battery pack is connected in series / parallel to a lithium ion polymer battery to have a desired voltage range and battery capacity. For battery management, a battery management system (hereinafter referred to as BMS), fuse, safety switch, etc. It is composed of relays and cable connectors to interface with eco-friendly vehicles.

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 driven by combining the power of a lithium-ion polymer battery pack for acceleration, start-up, etc. when driven by a stack that is a main driving force.

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 20 kW when the Ni-MH output is 20 kW based on room temperature (25 ° C), and the lithium-ion polymer battery pack has a very good output performance of 27 kW. Therefore, it can have a good influence on the acceleration performance and the maximum speed of the fuel cell hybrid electric vehicle.

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 eco-friendly vehicles connects FPCB to the connector for voltage measurement or transmission of power (signal) 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 invention: battery module, battery system, and 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 technology for helping understanding of the present invention, and does not mean a well-known prior art in the art.

기존의 친환경자동차용 배터리팩에 센싱용 배선을 위해서는, 연성인쇄회로기판에 단자를 연결하는데, 정해진 크기의 연성인쇄회로보드에 대략 'H'자 형상의 연성인쇄회로기판을 절개함으로써, 연성인쇄회로보드는 버려지게 되어 낭비되는 부분(영역)이 많음에 따라 제조 원가가 상승하는 문제점이 있다. For wiring for sensing in an existing eco-friendly battery pack for a vehicle, a terminal is connected to a flexible printed circuit board, and by cutting an approximately 'H' shaped flexible printed circuit board on a flexible printed circuit board of a predetermined size, the flexible printed circuit The board is thrown away and there is a problem in that the manufacturing cost increases as there are many wasted parts (areas).

그리고, 기존의 친환경자동차용 배터리팩의 배선은 경질의 인쇄회로기판의 표면에 연질의 연성인쇄회로기판을 접착하여 전기적으로 연결하는데, 인쇄회로기판의 표면에 대해 대략 수직한 방향으로 연성인쇄회로기판이 당겨지는 외력을 받을 경우, 연성인쇄회로기판은 인쇄회로기판으로부터 분리되는 문제점이 있다.In addition, the wiring of the battery pack for the existing eco-friendly vehicle is electrically connected by adhering the flexible flexible printed circuit board to the surface of the rigid printed circuit board. When this pulled external force is applied, the flexible printed circuit board has a problem of being separated from the printed circuit board.

따라서, 이를 개선할 필요성이 요청된다.Therefore, there is a need to improve this.

본 발명은 상기와 같은 문제점들을 개선하기 위하여 안출된 것으로서, 전압 체크 등을 위해 배터리팩에 접속되는 단자를 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 devised to improve the above problems, in which a terminal connected to a battery pack is mounted on a rigid printed circuit board for voltage check or the like, and at least a pair of printed circuit boards are arranged to face each other. By connecting neighboring printed circuit boards with a flexible strip-shaped flexible circuit board, the battery pack for eco-friendly vehicles that wants to reduce manufacturing costs by reducing the wasted portion by cutting the strip-shaped flexible circuit board from the provided flexible circuit board. The purpose is to provide a sensing circuit device.

본 발명은 장력저감부를 통해 인쇄회로기판에 접착된 연성인쇄회로기판을 절곡하거나 인쇄회로기판 측으로 가압함으로써, 연성인쇄회로기판이 인쇄회로기판의 상부 방향으로 당겨지는 외력(장력)에 의해 분리되는 취약성을 방지하고자 하는 친환경자동차의 배터리팩용 센싱회로장치를 제공하는데 그 목적이 있다.The present invention is a vulnerability in which a flexible printed circuit board is separated by an external force (tension) that is pulled in an upward direction of the printed circuit board by bending or pressing the flexible printed circuit board attached to the printed circuit board through the tension reducing portion. An object of the present invention is to provide a sensing circuit device for a battery pack of an eco-friendly vehicle that is intended to prevent.

본 발명에 따른 친환경자동차의 배터리팩용 센싱회로장치는: 배터리팩에 접속되는 단자를 실장하고, 경질로 이루어지며, 적어도 한 쌍으로 이루어지는 인쇄회로기판; 이웃한 상기 인쇄회로기판끼리를 전기적으로 연결하고, 상기 배터리팩의 형상에 따라 배선 궤적을 달리할 수 있도록 연질로 이루어진 연성인쇄회로기판; 상기 인쇄회로기판을 보호하고, 상기 단자를 외부로 노출시키는 바텀커버; 및 상기 인쇄회로기판의 표면에 전기적으로 연결된 상기 연성인쇄회로기판이 상기 인쇄회로기판의 해당 표면에서 상부 방향으로 장력이 발생되는 것을 저감하는 장력저감부를 포함한다.The sensing circuit device for a battery pack of an eco-friendly vehicle according to the present invention includes: a printed circuit board comprising a terminal connected to a battery pack, made of rigid, and formed of at least one pair; A flexible printed circuit board made of a soft material to electrically connect the adjacent printed circuit boards to each other and to vary wiring traces according to the shape of the battery pack; A bottom cover protecting the printed circuit board and exposing the terminal to the outside; And a tension reducing portion that reduces the occurrence of tension in the upward direction on the surface of the flexible printed circuit board by the flexible printed circuit board electrically connected to the surface of the printed circuit board.

상기 장력저감부는, 상기 연성인쇄회로기판의 축 방향으로 일측 또는 양측에 배치되는 터미널에 구비되어 상기 연성인쇄회로기판을 눌러 가압하는 가압부를 포함한다.The tension reducing portion is provided on a terminal disposed on one side or both sides in the axial direction of the flexible printed circuit board and includes a pressing portion for pressing the flexible printed circuit board.

상기 가압부는, 상기 터미널에서 하나 이상 연장되어 상기 인쇄회로기판, 또는 상기 인쇄회로기판과 해당 바텀커버에 억지 끼움되는 끼움돌기; 및 상기 터미널에서 연장되어 해당 바텀커버의 외측으로 연장되는 상기 연성인쇄회로기판을 눌러 절곡하는 푸쉬블록을 포함한다.The pressing portion, the one or more extensions extending from the terminal to the printed circuit board, or the printed circuit board and a fitting projection forcibly fitted to the bottom cover; And a push block extending from the terminal and bending the flexible printed circuit board extending outward of the bottom cover.

상기 터미널은 접촉핀을 연장하고, 상기 인쇄회로기판은 상기 접촉핀을 삽입하여 상기 인쇄회로기판을 통해 상기 연성인쇄회로기판과 전기적으로 연결되는 것을 특징으로 한다.The terminal extends the contact pin, and the printed circuit board is inserted into the contact pin and is electrically connected to the flexible printed circuit board through the printed circuit board.

이상에서 설명한 바와 같이, 본 발명에 따른 친환경자동차의 배터리팩용 센싱회로장치는 종래 기술과 달리 전압 체크 등을 위해 배터리팩에 접속되는 단자를 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 sensing circuit device for a battery pack of an eco-friendly vehicle according to the present invention mounts a terminal connected to the battery pack on a rigid printed circuit board for voltage checking and the like, unlike the prior art, and at least one pair of printed circuits By connecting neighboring printed circuit boards with flexible strips of flexible strips in a state where the substrates are arranged to face each other, the production cost is reduced by cutting the wasted portion from the provided flexible circuit boards by cutting the strip-shaped flexible circuit boards. Can be reduced.

본 발명은 장력저감부를 통해 인쇄회로기판에 접착된 연성인쇄회로기판을 절곡하거나 인쇄회로기판 측으로 가압함으로써, 연성인쇄회로기판이 인쇄회로기판의 상부 방향으로 당겨지는 장력에 의해 분리되는 취약성을 방지할 수 있다.The present invention bends the flexible printed circuit board adhered to the printed circuit board through the tension reducing portion or presses it toward the printed circuit board, thereby preventing the vulnerability of the flexible printed circuit board being separated by the tension pulled in the upper direction of the printed circuit board. Can be.

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.
도 8은 본 발명의 다른 실시예에 따른 친환경자동차의 배터리팩의 사시도이다.
도 9는 본 발명의 다른 실시예에 따른 친환경자동차의 배터리팩으로부터 센싱회로장치를 분리한 분해 사시도이다.
도 10은 본 발명의 다른 실시예에 따른 친환경자동차의 배터리팩용 센싱회로장치의 배면 사시도이다.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 of main parts of a sensing circuit device according to an exemplary embodiment of the present invention.
6 is a sectional view of main parts of a sensing circuit device according to an embodiment of the present invention.
7 is a state diagram for cutting a flexible printed circuit board from a flexible printed circuit board among sensing circuit devices according to an embodiment of the present invention.
8 is a perspective view of a battery pack of an eco-friendly vehicle according to another embodiment of the present invention.
9 is an exploded perspective view of a sensing circuit device separated from a battery pack of an eco-friendly vehicle according to another embodiment of the present invention.
10 is a rear perspective view of a sensing circuit device for a battery pack of an eco-friendly vehicle according to another embodiment of the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 친환경자동차의 배터리팩용 센싱회로장치의 실시예들을 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, embodiments of the sensing circuit device for a battery pack of an eco-friendly vehicle according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition 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 an exploded perspective view of a battery pack of an eco-friendly vehicle according to an embodiment of the present invention, and FIG. 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. It 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.

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 main part perspective view of a sensing circuit device according to an embodiment of the present invention, and FIG. 6 is sensing according to an embodiment of the present invention It is a sectional view of main parts of a circuit device.

도 7은 본 발명의 일 실시예에 따른 센싱회로장치 중 연성인쇄회로기판을 연성인쇄회로보드로부터 절취하는 상태도이다.7 is a state diagram for cutting a flexible printed circuit board from a flexible printed circuit board among sensing circuit devices according to an 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), 연질의 연성인쇄회로기판(FPCB,130), 바텀커버(140) 및 장력저감부(150)를 포함한다.1 to 7, the sensing circuit device 100 for a battery pack 10 of an eco-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), a bottom cover 140 and a tension reducing unit 150.

특히, 인쇄회로기판(120)은 마주하는 한 쌍씩으로 구비되고, 각각은 복수 개의 단자(110)을 실장한다. 편의상, 인쇄회로기판(120)은 한 쌍 구비되는 것으로 도시한다. 이때, 인쇄회로기판(120)이 경질로 이루어짐에 따라, 단자(110)는 인쇄회로기판(120)에 견고하게 실장될 수 있다. 이때, 단자(110)는 인쇄회로기판(120)의 경질회로패턴(121)과 전기적으로 연결된다.In particular, the printed circuit boards 120 are provided in pairs of each facing each other, and each of them mounts a plurality of terminals 110. For convenience, the printed circuit board 120 is shown as being provided with a pair. At this time, as the printed circuit board 120 is made of a hard material, the terminal 110 may be firmly mounted on the printed circuit board 120. At this time, the terminal 110 is electrically connected to the rigid circuit pattern 121 of the printed circuit board 120.

아울러, 단자(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 구비되는 것으로 한다.In addition, each of the terminals 110 is connected to a set position of the battery pack 10 for an eco-friendly vehicle. In particular, it is assumed that the sensing circuit device 100 according to the present invention is provided for checking the voltage of the battery pack 10 or supplying power or transmitting a signal.

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 is formed in a plate shape that is disposed to face each other, and may be formed in various shapes on a plane. The printed circuit board 120 forms a rigid circuit pattern 121 that is not exposed and insulated. That is, the printed circuit board 120 forms a hard circuit pattern 121 on the surface (one side) opposite to the surface facing each other. Then, the hard circuit pattern 121 is protected by a hard insulating sheath 122. The hard insulating shell 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 배치되는 것으로 도시한다.In particular, the printed circuit board 120 is shown to be disposed on both edges of the battery pack 10.

또한, 연성인쇄회로기판(130)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 board 130 is disposed adjacent to each other to serve to electrically connect the opposite printed circuit boards 120. So, 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 있음으로써 배선을 자유롭게 실시할 수 있다.In particular, the flexible printed circuit board 130 is made of a flexible (flexible) band (band) shape can be freely performed wiring by varying 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 a flexible circuit pattern 131 on the upper side or the lower side (one side). And, the flexible circuit pattern 131 is protected by the flexible insulating sheath 132. The flexible insulating sheath 132 is coated and formed on the flexible printed circuit board 130 to cover and protect the flexible circuit pattern 131.

특히, 연성인쇄회로기판(130)은 대향하는 인쇄회로기판(120) 각각의 외측면(일측면)에 전기적으로 접속된다. 이에 따라, 연성인쇄회로기판(130)은 어느 하나의 인쇄회로기판(120)의 외측면에 접착된 후 해당 인쇄회로기판(120)의 테두리에 의해 절곡된 상태로 다른 인쇄회로기판(120)으로 연장되며, 다른 인쇄회로기판(120)의 테두리에 의해 또 절곡된 후 해당 인쇄회로기판(120)의 외측면에 접착된다.In particular, the flexible printed circuit board 130 is electrically connected to the outer side (one side) of each of the opposing printed circuit boards 120. Accordingly, the flexible printed circuit board 130 is adhered to the outer surface of any one printed circuit board 120 and then bent to the other printed circuit board 120 in a state bent by the rim of the printed circuit board 120 It is extended, and is bent again by the rim of another printed circuit board 120 and then adhered to the outer surface of the printed circuit board 120.

그래서, 연성인쇄회로기판(130)이 상호 대향하는 인쇄회로기판(120)의 각 내측면에 전기적으로 접착시 인쇄회로기판(120)의 외측으로 당겨지는 장력에 의해 인쇄회로기판(120)과 분리되는 것이 방지된다. 즉, 연성인쇄회로기판(130)은 축 방향으로 양측 가장자리가 절곡되며 대응되는 인쇄회로기판(120)의 외측면에 전기적으로 연결됨으로써 당겨지는 장력을 상쇄하거나 저감하게 된다.Thus, the flexible printed circuit board 130 is separated from the printed circuit board 120 by the tension pulled outward of the printed circuit board 120 when electrically bonding to each inner surface of the printed circuit board 120 facing each other. It is prevented. That is, the flexible printed circuit board 130 is offset in both sides in the axial direction and electrically connected to the outer surface of the corresponding printed circuit board 120 to offset or reduce the pulling tension.

한편, 인쇄회로기판(120)의 경질회로패턴(121)과 연성인쇄회로기판(130)의 연성회로패턴(131)이 안정적으로 접촉되어야 한다.Meanwhile, the rigid 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 contacted.

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 an incision 124 in which a portion of the hard insulating sheath 122 on one side is cut. The rigid conductor member 123 connected to the rigid circuit pattern 121 is exposed by the cutout 124.

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.Likewise, the flexible printed circuit board 130 cuts the flexible insulating sheath 132 on one side corresponding to the hard conductor member 123 to form an exposed portion 134. The flexible conductor member 133 connected to the flexible circuit pattern 131 is exposed by the exposed portion 134.

물론, 절개부(124)와 노출부(134)의 크기나 위치는 한정하지 않는다.Of course, the size or position of the incision 124 and the exposure 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, through the incision 124 and the exposed portion 134, the hard conductor member 123 and the flexible conductor member 133 are in one-to-one contact. Thereafter, the hard conductor member 123 and the soft conductor member 133 to which the adhesive 135 corresponds are adhesively treated. Thus, the rigid circuit pattern 121 and the flexible circuit pattern 131 are firmly and 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 adjacent rigid conductor members 123 or the adjacent flexible conductor members 133 are bonded with the adhesive 135. In this case, the adhesive 135 does not blur electricity between neighboring rigid conductor members 123 or neighboring flexible conductor members 133, and electrically connects the rigid conductor members 123 and the flexible conductor members 133 corresponding one-to-one. It has the characteristic of connecting. For this reason, contact work for electrical connection of the corresponding hard 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.

한편, 바텀커버(140)는 인쇄회로기판(120)을 보호하는 역할을 한다. 그래서, 바텀커버(140)는 인쇄회로기판(120)의 일부를 에워싸도록 형성된다. 그리고, 바텀커버(140) 각각은 대응되는 인쇄회로기판(120)을 배터리팩(10)에 위치 고정하는 역할을 한다. 이를 위해, 바텀커버(140)는 체결홀(144)을 통공하고, 체결부재(145)가 체결홀(144)을 통해 배터리팩(10)에 분리 가능하게 결속된다. 이로써, 바텀커버(140)는 배터리팩(10)에 견고하게 위치 고정된다.Meanwhile, the bottom cover 140 serves to protect the printed circuit board 120. So, the bottom cover 140 is formed to surround a part of the printed circuit board 120. And, each of the bottom cover 140 serves to position the corresponding printed circuit board 120 in the battery pack 10. To this end, the bottom cover 140 passes through the fastening hole 144, and the fastening member 145 is detachably coupled to the battery pack 10 through the fastening hole 144. Thus, the bottom cover 140 is securely fixed to the battery pack 10.

아울러, 바텀커버(140)는 절연 재질로 이루어지는 것으로 한다.In addition, the bottom cover 140 is made of an insulating material.

특히, 바텀커버(140)가 인쇄회로기판(120)을 에워싼 상태에서 인쇄회로기판(120)의 단자(110)를 외부로 연장하여 노출시킬 수 있도록, 바텀커버(140)는 노출홀(142)을 통공한다. 그래서, 단자(110)는 대응되는 노출홀(142)을 통해 외부로 연장된다.In particular, the bottom cover 140 is exposed hole 142 so that the bottom cover 140 extends to the outside of the terminal 110 of the printed circuit board 120 in the state where the printed circuit board 120 is enclosed. ) Through. Thus, the terminal 110 extends outward through the corresponding exposure hole 142.

물론, 바텀커버(140)는 다양한 형상으로 변형 가능하다.Of course, the bottom cover 140 can be deformed into various shapes.

한편, 장력저감부(150)는 인쇄회로기판(120)의 표면에 전기적으로 연결된 연성인쇄회로기판(130)이 인쇄회로기판(120)의 해당 표면에서 상부(외측) 방향으로 장력이 발생되는 것을 저감하는 역할을 한다.Meanwhile, the tension reducing unit 150 indicates that the flexible printed circuit board 130 electrically connected to the surface of the printed circuit board 120 generates tension in the upper (outer) direction from the corresponding surface of the printed circuit board 120. It serves to reduce.

특히, 연성인쇄회로기판(130)은 인쇄회로기판(120)의 테두리에 의해 절곡되고, 장력저감부(150)에 의해 인쇄회로기판(120)과의 접착 부위의 장력을 줄일 수 있음에 따라, 연성인쇄회로기판(130)과 인쇄회로기판(120)의 접착 부위의 접착 내구성이 현저히 향상된다.In particular, the flexible printed circuit board 130 is bent by the rim of the printed circuit board 120, and as the tension reducing portion 150 can reduce the tension of the bonding portion with the printed circuit board 120, The adhesion durability between the flexible printed circuit board 130 and the printed circuit board 120 is significantly improved.

상세히, 장력저감부(150)는 가압부(154)를 포함한다.In detail, the tension reducing portion 150 includes a pressing portion 154.

가압부(154)는 연성인쇄회로기판(130)의 축 방향으로 일측 또는 양측에 배치되는 터미널(30)에 구비되어 연성인쇄회로기판(130)을 눌러 가압하는 역할을 한다. 본 실시예에서는, 터미널(30)이 연성인쇄회로기판(130)의 축 방향으로 양측에 각각 구비되는 것으로 한다.The pressing unit 154 is provided on the terminal 30 disposed on one side or both sides in the axial direction of the flexible printed circuit board 130 to serve to press the flexible printed circuit board 130 to press it. In this embodiment, it is assumed that the terminals 30 are provided on both sides in the axial direction of the flexible printed circuit board 130, respectively.

그리고, 터미널(30) 각각은 인쇄회로기판(120)에 고정된 채 연성인쇄회로기판(130)을 인쇄회로기판(120) 측으로 눌러 가압하는 역할을 한다.In addition, each of the terminals 30 serves to press the flexible printed circuit board 130 toward the printed circuit board 120 while being fixed to the printed circuit board 120.

더욱 상세히, 가압부(154)는 끼움돌기(155) 및 푸쉬블록(157)을 포함한다.In more detail, the pressing part 154 includes a fitting protrusion 155 and a push block 157.

끼움돌기(155)는 터미널(30)에서 하나 이상 연장되어 인쇄회로기판(120), 또는 인쇄회로기판(120)과 해당 바텀커버(140)에 억지 끼움된다. 이를 위해, 해당 인쇄회로기판(120), 또는 해당 인쇄회로기판(120)과 해당 바텀커버(140)는 끼움홀(156)이 통공된다. 끼움돌기(155)는 대응되는 끼움홀(156)에 억지 삽입된다.The fitting protrusion 155 is extended from the terminal 30 to one or more and is forcibly fitted to the printed circuit board 120 or the printed circuit board 120 and the corresponding bottom cover 140. To this end, the corresponding printed circuit board 120, or the corresponding printed circuit board 120 and the bottom cover 140 are fitted through holes 156. The fitting protrusion 155 is forcibly inserted into the corresponding fitting hole 156.

그래서, 터미널(30)은 해당 인쇄회로기판(120)에 고정 장착된다. 물론, 끼움홀(156)은 홈 형상으로 형성될 수도 있고, 끼움돌기(155)는 다양한 형상으로 변형 가능하다.So, the terminal 30 is fixedly mounted on the corresponding printed circuit board 120. Of course, the fitting hole 156 may be formed in a groove shape, and the fitting protrusion 155 may be deformed into various shapes.

또한, 푸쉬블록(157)은 터미널(30)에서 연장되어 해당 바텀커버(140)의 외측으로 연장되는 연성인쇄회로기판(130)을 눌러 절곡하는 역할을 한다. 이때, 푸쉬블록(157)은 해당 바텀커버(140)의 테두리면에 근접되거나 접하게 됨으로써 연성인쇄회로기판(130)의 흔들림을 방지한다.In addition, the push block 157 serves to bend the flexible printed circuit board 130 extending from the terminal 30 and extending to the outside of the bottom cover 140. At this time, the push block 157 prevents the shaking of the flexible printed circuit board 130 by being close to or in contact with the rim surface of the bottom cover 140.

물론, 푸쉬블록(157)은 다양한 형상으로 변형 가능하다.Of course, the push block 157 can be modified in various shapes.

특히, 터미널(30)은 접촉핀(32)을 연장하고, 인쇄회로기판(120)은 접촉핀(32)을 삽입하여 인쇄회로기판(120)을 통해 연성인쇄회로기판(130)과 전기적으로 연결된다. 이를 위해, 인쇄회로기판(120)은 핀홀을 통공할 수 있다.In particular, the terminal 30 extends the contact pin 32, and the printed circuit board 120 is electrically connected to the flexible printed circuit board 130 through the printed circuit board 120 by inserting the contact pin 32. do. To this end, the printed circuit board 120 may pass through a pinhole.

아울러, 터미널(30)도 체결홀(144)을 통공한다. 그래서, 체결부재(145)는 터미널(30)과 인쇄회로기판(120) 및 바텀커버(140)를 배터리팩(10)에 결속하는 역할을 한다.In addition, the terminal 30 also passes through the fastening hole 144. So, the fastening member 145 serves to bind the terminal 30, the printed circuit board 120, and the bottom cover 140 to the battery pack 10.

결과적으로, 연성인쇄회로기판(130)의 축 방향으로 타측은 인쇄회로기판(120)과 전기적으로 연결되고, 터미널(30)은 인쇄회로기판(120)과 전기적으로 연결된 채 연성인쇄회로기판(130)을 눌러 고정한다.As a result, the other side in the axial direction of the flexible printed circuit board 130 is electrically connected to the printed circuit board 120, and the terminal 30 is electrically connected to the printed circuit board 120 while the flexible printed circuit board 130 is Press) to fix.

아울러, 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.  In addition, with reference to FIG. 7, the flexible printed circuit board 130 is formed in a band shape so as to be electrically connected to the rigid printed circuit board 120. Since the flexible printed circuit board 130 can be cut and made, cost reduction is realized.

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

도 8은 본 발명의 다른 실시예에 따른 친환경자동차의 배터리팩의 사시도이고, 도 9는 본 발명의 다른 실시예에 따른 친환경자동차의 배터리팩으로부터 센싱회로장치를 분리한 분해 사시도이며, 도 10은 본 발명의 다른 실시예에 따른 친환경자동차의 배터리팩용 센싱회로장치의 배면 사시도이다.8 is an exploded perspective view of a battery pack of an eco-friendly vehicle according to another embodiment of the present invention, and FIG. 9 is an exploded perspective view of a sensing circuit device separated from a battery pack of an eco-friendly vehicle according to another embodiment of the present invention. It is a rear perspective view of a sensing circuit device for a battery pack of an eco-friendly vehicle according to another embodiment of the present invention.

도 8 내지 도 10을 참조하면, 본 발명의 다른 실시예에 따른 친환경자동차의 배터리팩(10)용 센싱회로장치(100)는 경질의 인쇄회로기판(PCB,120), 연질의 연성인쇄회로기판(FPCB,130), 바텀커버(140) 및 장력저감부(150)를 포함한다.8 to 10, the sensing circuit device 100 for a battery pack 10 of an eco-friendly vehicle according to another embodiment of the present invention includes a rigid printed circuit board (PCB, 120) and a flexible flexible printed circuit board (FPCB, 130), a bottom cover 140 and a tension reducing unit 150.

이때, 인쇄회로기판(PCB,120), 연성인쇄회로기판(FPCB,130) 및 바텀커버(140)는 상술한 것으로 대체한다.At this time, the printed circuit board (PCB, 120), flexible printed circuit board (FPCB, 130) and the bottom cover 140 is replaced with the above.

장력저감부(150)는 가압부(154) 및 절곡유도부재(152)를 포함한다.The tension reducing portion 150 includes a pressing portion 154 and a bending induction member 152.

가압부(154)는, 상술한 바와 같이, 연성인쇄회로기판(130)의 축 방향을 따라 타측에 위치하는 바텀커버(140)에 형성된다.The pressing portion 154 is formed on the bottom cover 140 located on the other side along the axial direction of the flexible printed circuit board 130, as described above.

절곡유도부재(152)는 연성인쇄회로기판(130)의 축 방향으로 일측에 배치되는 바텀커버(140) 또는 양측에 배치되는 바텀커버(140) 각각에 구비되어, 인쇄회로기판(120)에 전기적으로 연결된 채 연장되는 연성인쇄회로기판(130)을 절곡하는 역할을 한다. 본 실시예에서는, 연성인쇄회로기판(130)의 축 방향을 따라 양측에 연결되는 인쇄회로기판(120) 각각의 바텀커버(140)가 절곡유도부재(152)를 구비하는 것으로 한다.The bending induction member 152 is provided in each of the bottom cover 140 disposed on one side or the bottom cover 140 disposed on both sides in the axial direction of the flexible printed circuit board 130, and is electrically connected to the printed circuit board 120. It serves to bend the flexible printed circuit board 130 extending while being connected to. In this embodiment, it is assumed that the bottom cover 140 of each of the printed circuit boards 120 connected to both sides along the axial direction of the flexible printed circuit board 130 includes a bending induction member 152.

상세히, 연성인쇄회로기판(130)은 대응되는 인쇄회로기판(120)의 일측에 전기적으로 연결된 후 해당 바텀커버(140)의 외측으로 연장시, 절곡유도부재(152)가 연성인쇄회기판을 타측 방향으로 눌러 절곡하는 역할을 한다.In detail, the flexible printed circuit board 130 is electrically connected to one side of the corresponding printed circuit board 120 and then extends to the outside of the bottom cover 140, the bending inducing member 152 is attached to the flexible printed circuit board on the other side. Pressing in the direction serves to bend.

이를 위해, 절곡유도부재(152)는 바텀커버(140)의 가장자리 또는 테두리에 구비된다. 물론, 절곡유도부재(152)는 다양한 형상으로 변형 가능하고, 하나 또는 한 쌍으로 구비된다.To this end, the bending induction member 152 is provided at the edge or edge of the bottom cover 140. Of course, the bending induction member 152 can be deformed into various shapes, and is provided in one or a pair.

아울러, 바텀커버(140)는 가장자리에 엣지(146)를 돌출 형성한다. 이때, 엣지(146)는 바텀커버(140)의 가장자리 전체에 걸쳐 형성되는 것으로 한다. In addition, the bottom cover 140 protrudes from the edge 146 at the edge. At this time, it is assumed that the edge 146 is formed over the entire edge of the bottom cover 140.

그래서, 엣지(146)는 인쇄회로기판(120)의 테두리를 감싸서 보호하는 역할을 하고, 인쇄회로기판(120)을 정위치하여 수용하는 역할을 한다.Thus, the edge 146 serves to wrap and protect the edge of the printed circuit board 120, and serves to accommodate the printed circuit board 120 in place.

특히, 인쇄회로기판(120)의 단자(110)가 바텀커버(140)의 노출홀(142)에 삽입되어 외부로 돌출되고, 인쇄회로기판(120)의 테두리가 엣지(146)에 접함으로써, 인쇄회로기판(120)은 바텀커버(140) 내측에 고정된다. 물론, 인쇄회로기판(120)이 볼팅 등에 의해 바텀커버(140) 내측에 고정될 수도 있다. 엣지(146)는 다양한 형상으로 변형 가능하다.In particular, the terminal 110 of the printed circuit board 120 is inserted into the exposed hole 142 of the bottom cover 140 and protrudes to the outside, and the edge of the printed circuit board 120 contacts the edge 146, The printed circuit board 120 is fixed inside the bottom cover 140. Of course, the printed circuit board 120 may be fixed inside the bottom cover 140 by bolting or the like. The edge 146 can be deformed into various shapes.

이때, 연성인쇄회로기판(130)을 외측으로 연장하는 바텀커버(140)의 해당 가장자리의 엣지(146)는 그 이외의 엣지(146)보다 높이가 소정 낮게 형성된다. 그래서, 해당 부위의 엣지(146)는 연성인쇄회로기판(130)의 절곡되는 방향 전환성을 증대한다. 다시 말해서, 연성인쇄회로기판(130)은 바텀커버(140) 각각의 엣지(146)와 절곡유도부재(152)에 의해 대략 'S'자 궤적을 형성함에 따라, 인쇄회로기판(120)의 표면에서 상부 방향으로 장력이 발생되는 것을 방지(상쇄)할 수 있다.At this time, the edge 146 of the corresponding edge of the bottom cover 140 extending the flexible printed circuit board 130 to the outside is formed to have a lower height than the other edges 146. Thus, the edge 146 of the corresponding portion increases the bending direction changeability of the flexible printed circuit board 130. In other words, the flexible printed circuit board 130 forms the approximately 'S'-shaped trajectory by the edge 146 and the bending inducing member 152 of the bottom cover 140, so that the surface of the printed circuit board 120 It can prevent (cancel) tension from being generated in the upper direction.

미설명된 도면부호는 상술한 것으로 대체한다.Unexplained reference numerals are replaced with those described above.

본 발명은 도면에 도시된 실시예들을 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 청구범위에 의해서 정하여져야 할 것이다.The present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and those skilled in the art to which the art pertains are capable of various modifications and other equivalent embodiments. Will understand. Therefore, the true technical protection scope of the present invention should be defined by the claims below.

10: 배터리팩 100: 센싱회로장치
110: 단자 120: 인쇄회로기판
121: 경질회로패턴 122: 경질절연외피
123: 경질도체부재 124: 절개부
130: 연성인쇄회로기판 131: 연성회로패턴
132: 연성절연외피 133: 연성도체부재
134: 노출부 140: 바텀커버
142: 노출홀 144: 체결홀
146: 엣지 150: 장력저감부
152: 절곡유도부재 154: 가압부
155: 끼움돌기 157: 푸쉬블록10: battery pack 100: sensing circuit device
110: terminal 120: printed circuit board
121: rigid circuit pattern 122: rigid insulating shell
123: hard conductor member 124: incision
130: flexible printed circuit board 131: flexible circuit pattern
132: ductile insulating sheath 133: ductile conductor member
134: exposed portion 140: bottom cover
142: exposed hole 144: fastening hole
146: edge 150: tension reduction
152: bending inducing member 154: pressing portion
155: fitting projection 157: push block

Claims (3)

배터리팩에 접속되는 단자를 실장하고, 경질로 이루어지며, 적어도 한 쌍으로 이루어지는 인쇄회로기판; 이웃한 상기 인쇄회로기판끼리를 전기적으로 연결하고, 상기 배터리팩의 형상에 따라 배선 궤적을 달리할 수 있도록 연질로 이루어진 연성인쇄회로기판; 상기 인쇄회로기판을 보호하고, 상기 단자를 외부로 노출시키는 바텀커버; 및 상기 인쇄회로기판의 표면에 전기적으로 연결된 상기 연성인쇄회로기판이 상기 인쇄회로기판의 해당 표면에서 상부 방향으로 장력이 발생되는 것을 저감하는 장력저감부를 포함하고,
상기 장력저감부는, 상기 연성인쇄회로기판의 축 방향으로 일측 또는 양측에 배치되는 터미널에 구비되어 상기 연성인쇄회로기판을 눌러 가압하는 가압부를 포함하며,
상기 가압부는, 상기 터미널에서 하나 이상 연장되어 상기 인쇄회로기판, 또는 상기 인쇄회로기판과 해당 바텀커버에 억지 끼움되는 끼움돌기; 및 상기 터미널에서 연장되어 해당 바텀커버의 외측으로 연장되는 상기 연성인쇄회로기판을 눌러 절곡하는 푸쉬블록을 포함하고,
해당 인쇄회로기판, 또는 해당 인쇄회로기판과 해당 바텀커버는 대응되는 끼움돌기를 끼움하기 위해 끼움홀을 통공하며,
상기 바텀커버는 가장자리를 따라 돌출 형성되는 엣지에 의해 대응되는 인쇄회로기판을 내부 공간에 수용한 채 체결홀을 통해 체결부재에 의해 상기 배터리팩에 위치 고정되고, 내부에 위치한 상기 인쇄회로기판의 단자를 외부로 연장하기 위해 노출홀을 통공하는 것을 특징으로 하는 친환경자동차의 배터리팩용 센싱회로장치.
A printed circuit board mounted on a terminal connected to the battery pack, made of a rigid material, and formed of at least one pair; A flexible printed circuit board made of a soft material to electrically connect the adjacent printed circuit boards to each other and to vary wiring traces according to the shape of the battery pack; A bottom cover protecting the printed circuit board and exposing the terminal to the outside; And a tension reducing portion for reducing the occurrence of tension in the upward direction on the surface of the printed circuit board by the flexible printed circuit board electrically connected to the surface of the printed circuit board,
The tension reducing portion is provided on a terminal disposed on one side or both sides in the axial direction of the flexible printed circuit board and includes a pressing portion for pressing the flexible printed circuit board to press,
The pressurizing portion, one or more extending from the terminal, the printed circuit board, or the printed circuit board and the fitting projection to be fitted into the bottom cover; And a push block extending from the terminal and bending the flexible printed circuit board extending outward of the bottom cover.
The printed circuit board, or the printed circuit board and the bottom cover, pass through a fitting hole to fit a corresponding fitting protrusion,
The bottom cover is fixed to the battery pack by a fastening member through a fastening hole while receiving a printed circuit board corresponding to an edge formed protruding along an edge in an inner space, and a terminal of the printed circuit board located therein Sensing circuit device for the battery pack of the eco-friendly vehicle, characterized in that through the exposed hole to extend the outside.
삭제delete 제 1항에 있어서,
상기 터미널은 접촉핀을 연장하고,
상기 인쇄회로기판은 상기 접촉핀을 삽입하여 상기 인쇄회로기판을 통해 상기 연성인쇄회로기판과 전기적으로 연결되는 것을 특징으로 하는 친환경자동차의 배터리팩용 센싱회로장치.According to claim 1,
The terminal extends the contact pin,
The printed circuit board is a sensing circuit device for a battery pack of an eco-friendly vehicle, characterized in that the contact pin is inserted and electrically connected to the flexible printed circuit board through the printed circuit board.
KR1020190151816A 2019-11-25 2019-11-25 Voltage sensing device of battery-pack for vehicle KR102116301B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020190151816A KR102116301B1 (en) 2019-11-25 2019-11-25 Voltage sensing device of battery-pack for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020190151816A KR102116301B1 (en) 2019-11-25 2019-11-25 Voltage sensing device of battery-pack for vehicle

Publications (1)

Publication Number Publication Date
KR102116301B1 true KR102116301B1 (en) 2020-06-01

Family

ID=71083094

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190151816A KR102116301B1 (en) 2019-11-25 2019-11-25 Voltage sensing device of battery-pack for vehicle

Country Status (1)

Country Link
KR (1) KR102116301B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220085470A1 (en) * 2020-09-15 2022-03-17 Sk Innovation Co., Ltd. Sensing Assembly and Battery Module
KR20220139073A (en) * 2021-04-07 2022-10-14 주식회사 경신전선 Wiring jig for battery pack module

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140145923A (en) * 2013-06-14 2014-12-24 삼성에스디아이 주식회사 Battery Pack
KR101829350B1 (en) * 2016-12-30 2018-02-14 한국단자공업 주식회사 Sensing apparatus for battery module
KR20190011642A (en) * 2017-07-25 2019-02-07 주식회사 경신 Battery signals sensing device for automobile
KR102037045B1 (en) * 2019-05-22 2019-10-28 (주)경신전선 Voltage sensing device of battery-pack for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140145923A (en) * 2013-06-14 2014-12-24 삼성에스디아이 주식회사 Battery Pack
KR101829350B1 (en) * 2016-12-30 2018-02-14 한국단자공업 주식회사 Sensing apparatus for battery module
KR20190011642A (en) * 2017-07-25 2019-02-07 주식회사 경신 Battery signals sensing device for automobile
KR102037045B1 (en) * 2019-05-22 2019-10-28 (주)경신전선 Voltage sensing device of battery-pack for vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220085470A1 (en) * 2020-09-15 2022-03-17 Sk Innovation Co., Ltd. Sensing Assembly and Battery Module
KR20220139073A (en) * 2021-04-07 2022-10-14 주식회사 경신전선 Wiring jig for battery pack module
KR102546117B1 (en) 2021-04-07 2023-06-22 (주)경신전선 Wiring jig for battery pack module

Similar Documents

Publication Publication Date Title
CN110854319B (en) Battery module and method for manufacturing same
KR102037045B1 (en) Voltage sensing device of battery-pack for vehicle
KR102033003B1 (en) Frame assembly
US9716258B2 (en) Battery pack
US20200259155A1 (en) Battery module
US8815439B2 (en) Secondary battery pack
KR20190069129A (en) Battery pack
KR20130006279A (en) Battery pack
CN112310567B (en) Connection assembly, battery module, battery pack, and apparatus using battery module as power source
KR102116301B1 (en) Voltage sensing device of battery-pack for vehicle
EP3930086B1 (en) Battery module, battery pack, and device which uses battery cell as power supply
US20200259140A1 (en) Battery module and manufacturing method thereof
KR20210037454A (en) Battery module and battery pack including the same
WO2022158510A1 (en) Wiring module
CN113131099B (en) Battery pack
KR101783333B1 (en) Terminal for module
KR102116300B1 (en) Voltage sensing device of battery-pack for vehicle
KR20220041429A (en) Battery module and battery pack including the same
KR20220012037A (en) Battery module having a simple connection structure between cell lead and voltage sensing member and battery pack including the same
CN112952179A (en) Secondary battery
KR20210098705A (en) Battery module and battery pack including the same
JP2023532043A (en) Battery module with improved assembly structure of voltage sensing parts and battery pack including the same
JP2008066172A (en) Secondary sheet battery unit, and secondary battery module using same
JP2001250520A (en) Battery pack and electronic apparatus
KR20210069426A (en) Battery module and battery pack including the same

Legal Events

Date Code Title Description
GRNT Written decision to grant