KR20200106293A - Battery temperature sensor for vehicles - Google Patents

Battery temperature sensor for vehicles Download PDF

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KR20200106293A
KR20200106293A KR1020190024605A KR20190024605A KR20200106293A KR 20200106293 A KR20200106293 A KR 20200106293A KR 1020190024605 A KR1020190024605 A KR 1020190024605A KR 20190024605 A KR20190024605 A KR 20190024605A KR 20200106293 A KR20200106293 A KR 20200106293A
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South Korea
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unit
fpcb
terminal
temperature sensor
main body
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KR1020190024605A
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Korean (ko)
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KR102192548B1 (en
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김훈
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암페놀센싱코리아 유한회사
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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
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • 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

Abstract

The present invention relates to a vehicle battery temperature sensor with improved response speed due to an increase in thermal conductivity with a structure that is completely in close contact with a cell pouch while productivity is greatly improved due to a small number of parts and a simple manufacturing process. To this end, the vehicle battery temperature sensor comprises: a main body unit (110) having a protrusion unit (111) in which a seating groove (112) into which an elastic member (130) is inserted is formed in an upper center, an expose hole (113) formed to expose an upper connection unit (142) of a terminal (140) on both sides of the upper end, and a forming groove unit (114) formed to mount the terminal (140) under the expose hole (113); a sensor unit (120) having a strip-shaped FPCB (121) having a certain width, an SMD-mounted thermistor (122) SMD mounted in the center of the FPCB (121), a molding unit (123) formed by over-molding the thermistor (122) with a resin, and a connection hole (126) formed at both ends of the FPCB (121) to be soldered with the upper connection unit (142) of the terminal (140) of the main body unit (110); the elastic member (130) inserted into the seating groove (112) of the main body unit (110) and providing a constant elastic force to the sensor unit (120) positioned thereon; and the terminal (140) consisting of a lower connection unit (141) soldered to the main PCB (210) on one side, and the upper connection unit (142) soldered to the FPCB of the sensor unit (120) by being exposed through the expose hole (113) of the main body unit (110) on the other side.

Description

차량용 배터리 온도센서{BATTERY TEMPERATURE SENSOR FOR VEHICLES}Vehicle battery temperature sensor{BATTERY TEMPERATURE SENSOR FOR VEHICLES}

본 발명은 차량용 리튬이온 배터리 셀(Lithium-ion Battery Cell)의 온도를 감지하는 온도센서에 관한 것으로, 더욱 상세하게는 열원(Cell pouch)에 완전 밀착되는 구조로 열전도성 상승으로 인한 응답속도를 개선시키고, 부품수가 적고 제조 공정이 간단하여 생산성을 크게 향상시킨 차량용 배터리 온도센서에 관한 것이다.The present invention relates to a temperature sensor that senses the temperature of a lithium-ion battery cell for a vehicle, and more particularly, improves response speed due to the increase in thermal conductivity with a structure that is completely in close contact with a heat source. And, it relates to a battery temperature sensor for a vehicle with a small number of parts and a simple manufacturing process, which greatly improves productivity.

주지한 바와 같이 차량용 배터리 온도센서는 배터리 셀의 온도를 감지하여 배터리관리시스템(BMS: Battery Management System)으로 과충전 및 냉각을 위한 신호를 제공하게 된다.As is well known, the vehicle battery temperature sensor detects the temperature of the battery cell and provides a signal for overcharging and cooling to a battery management system (BMS).

일반적인 배터리 온도센서는 도 1에서와 같이 센서부(10)에 연결되는 배선(11)과 커넥터(12)를 이용한 메인PCB 연결구조로 부품수가 많고 공정이 복잡하게 되었다.A typical battery temperature sensor has a large number of parts and a complicated process due to a main PCB connection structure using a wiring 11 and a connector 12 connected to the sensor unit 10 as shown in FIG. 1.

또한 센서부(10)는 서미스터(thermistor)가 합성수지 케이스에 내부에서 에폭시로 몰딩되는 구조로 되어 있어, 열전도성이 떨어지고 열원에 완전 밀착되지 않아 센서의 응답시간(Response Time)가 상대적으로 느린 문제점이 도출되었다.In addition, since the sensor unit 10 has a structure in which the thermistor is molded with epoxy inside a synthetic resin case, the thermal conductivity is poor and the response time of the sensor is relatively slow because it is not fully adhered to the heat source. Was derived.

공개특허공보 10-2015-0128015, 공개특허공보 10-1998-0006601, 공개실용신안공보20-1999-0024037Unexamined Patent Publication 10-2015-0128015, Unexamined Patent Publication 10-1998-0006601, Unexamined Utility Model Publication 20-1999-0024037

본 발명은 상기한 문제점을 해결하기 위하여 창안된 것으로, 본 발명의 목적은 차량용 리튬이온 배터리 셀에 완전 밀착되는 구조로 열전도성 상승으로 인한 응답속도를 개선시키고, 부품수가 적고 제조 공정이 간단하여 생산성을 크게 향상시킨 차량용 배터리 온도센서를 제공하는 것에 있다.The present invention was invented to solve the above problems, and an object of the present invention is to improve the response speed due to the increase in thermal conductivity with a structure that is completely in close contact with the vehicle lithium-ion battery cell, and the number of parts is small and the manufacturing process is simple. It is to provide a vehicle battery temperature sensor that has greatly improved.

이와 같은 목적을 달성하기 위한 본 발명은 상부 중앙에 내측으로 탄성부재가 삽입되는 안착홈이 형성되는 돌기부와, 상단 양측으로 단자의 상단접속부가 노출되도록 형성되는 노출공과, 상기 노출공의 하부로 상기 단자가 장착되도록 형성되는 성형홈부를 포함하는 본체부; The present invention for achieving the above object is a protrusion in which a seating groove into which an elastic member is inserted inward is formed in an upper center, an exposed hole formed to expose the upper connection portion of the terminal to both sides of the upper end, and the lower portion of the exposed hole. A main body including a forming groove formed to mount a terminal;

일정한 폭을 가지는 띠형태의 FPCB와, 상기 FPCB의 중앙에 SMD 실장되는 서미스터와, 상기 서미스터를 수지로 오버 몰딩한 몰딩부와, 상기 FPCB의 양단에 형성되어 본체부 단자의 상단접속부와 솔더링되는 접속공을 포함하는 센서부;A band-shaped FPCB having a certain width, an SMD-mounted thermistor in the center of the FPCB, a molding part formed by over-molding the thermistor with resin, and a connection formed on both ends of the FPCB and soldered to the upper end connection of the main body terminal A sensor unit including a ball;

상기 본체부의 안착홈에 삽입 장착되며, 그 상부에 위치하게 되는 센서부로 일정한 탄성력을 제공하는 탄성부재; 및 An elastic member inserted into the seating groove of the main body and providing a constant elastic force to the sensor unit positioned thereon; And

일측으로 메인PCB에 솔더링되는 하단접속부와, 타측으로 상기 본체부의 노출공에 관통 노출되어 센서부의 FPCB와 솔더링되는 상단접속부로 구성되는 단자를 포함하는 것을 특징으로 하는 차량용 배터리 온도센서.A battery temperature sensor for a vehicle comprising a terminal comprising a lower connection part soldered to the main PCB on one side, and an upper connection part soldered to the FPCB of the sensor unit by being exposed through the exposed hole of the main body on the other side.

또한 본 발명에 따르면 상기 센서부의 서미스터가 위치한 FPCB의 반대편에는 열전도성 제1금속패드가 부착되는 것을 특징으로 한다.In addition, according to the present invention, a first thermally conductive metal pad is attached to the opposite side of the FPCB where the sensor unit thermistor is located.

또한 본 발명에 따르면 상기 탄성부재는 내측으로 상기 센서부의 몰딩부가 위치할 수 있도록 통공이 형성되는 것을 특징으로 한다.In addition, according to the present invention, the elastic member is characterized in that the through hole is formed so that the molding part of the sensor unit can be located inside.

이와 같이 본 발명 차량용 배터리 온도센서는 차량용 리튬이온 배터리 셀에 완전 밀착되는 구조로 열전도성 상승으로 인한 응답속도를 빠르게 한 효과를 제공한다.As described above, the vehicle battery temperature sensor of the present invention has a structure in which the vehicle battery temperature sensor is completely in close contact with the vehicle lithium-ion battery cell and provides an effect of speeding the response speed due to the increase in thermal conductivity.

또한 본 발명 차량용 배터리 온도센서는 부품수가 적고 제조 공정이 간단하여 생산성을 크게 향상시킨 장점을 제공한다.In addition, the vehicle battery temperature sensor of the present invention provides an advantage of greatly improving productivity because the number of parts is small and the manufacturing process is simple.

도 1은 종래의 차량용 배터리 온도센서의 구성도,
도 2는 본 발명에 따른 차량용 배터리 온도센서의 사시도,
도 3는 본 발명에 따른 차량용 배터리 온도센서의 분해 사시도,
도 4의 (a)(b)는 본 발명에 따른 센서부의 전면 및 후면 사시도,
도 5는 본 발명에 따른 차량용 배터리 온도센서의 본체부와 센서부의 분해 사시도,
도 6은 본 발명에 따른 차량용 배터리 온도센서의 작동 상태도,
도 7은 본 발명에 따른 차량용 배터리 온도센서의 장착상태를 나타내는 도면이다.1 is a configuration diagram of a conventional vehicle battery temperature sensor,
2 is a perspective view of a vehicle battery temperature sensor according to the present invention,
3 is an exploded perspective view of a vehicle battery temperature sensor according to the present invention,
4 (a) (b) is a front and rear perspective view of a sensor unit according to the present invention,
5 is an exploded perspective view of a body part and a sensor part of a vehicle battery temperature sensor according to the present invention,
6 is an operating state diagram of the vehicle battery temperature sensor according to the present invention,
7 is a view showing the mounting state of the vehicle battery temperature sensor according to the present invention.

이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 보다 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 차량용 배터리 온도센서의 사시도, 도 3는 본 발명에 따른 차량용 배터리 온도센서의 분해 사시도이다.Figure 2 is a perspective view of a vehicle battery temperature sensor according to the present invention, Figure 3 is an exploded perspective view of the vehicle battery temperature sensor according to the present invention.

도시된 바와 같이, 본 발명 차량용 배터리 온도센서(100)는, As shown, the present invention vehicle battery temperature sensor 100,

본체부(110), 센서부(120), 탄성부재(130) 및 단자(140)를 포함한다.It includes a body portion 110, a sensor portion 120, an elastic member 130 and a terminal 140.

상기 본체부(110)는 상부 중앙에 내측으로 탄성부재(130)가 삽입되는 안착홈(112)이 형성되는 돌기부(111)와, 상단 양측으로 단자(140)의 상단접속부(142)가 노출되도록 형성되는 노출공(113)과, 상기 노출공(113)의 하부로 상기 단자(140)가 장착되도록 형성되는 성형홈부(114)를 포함한다.The main body 110 is such that the protrusion 111 in which the seating groove 112 into which the elastic member 130 is inserted is formed is formed in the center of the upper portion, and the upper connection portions 142 of the terminal 140 are exposed to both sides of the upper end. It includes an exposed hole 113 to be formed, and a forming groove 114 formed to mount the terminal 140 below the exposed hole 113.

상기 단자(140)는 일측으로 도 6에서와 같이 메인PCB(210)에 솔더링되도록 절곡 형성되는 하단접속부(141)와, 타측으로 상기 본체부(110)의 노출공(113)에 관통 노출되어 센서부(120)의 FPCB(Flexible Printed Circuit Board)(121)와 솔더링되는 상단접속부(142)로 구성된다.The terminal 140 has a lower connection part 141 bent to be soldered to the main PCB 210 as shown in FIG. 6 on one side, and the other side through the exposed hole 113 of the main body 110 to be exposed to the sensor. It is composed of an FPCB (Flexible Printed Circuit Board) 121 of the part 120 and an upper connection part 142 that is soldered.

또한 상기 단자(140)는 상기 본체부(110)의 성형홈부(114)를 통해 인서트 사출로 성형되어, 별도의 배선 없이 메인PCB(210)에 접속되어 진다.In addition, the terminal 140 is molded by insert injection through the molding groove 114 of the main body 110, and is connected to the main PCB 210 without a separate wiring.

상기 센서부(120)는 도 4의 (a)(b)에서와 같이 일정한 폭을 가지는 띠형태의 FPCB(121)와, 상기 FPCB(121)의 중앙에 SMD 실장되는 서미스터(122)와, 상기 서미스터(122)를 수지로 오버 몰딩한 몰딩부(123)와, 상기 서미스터(122)가 위치한 FPCB(121)의 반대편에 부착되는 열전도성 제1금속패드(124)와, 상기 FPCB(121)의 양단에 부착되는 열전도성 제2금속패드(125)와, 상기 FPCB(121)의 양단에 형성되어 본체부(110) 단자(140)의 상단접속부(142)와 솔더링되는 접속공(126)으로 구성된다.The sensor unit 120 includes a band-shaped FPCB 121 having a constant width as shown in Fig. 4 (a) (b), an SMD-mounted thermistor 122 in the center of the FPCB 121, and the A molding part 123 in which the thermistor 122 is over-molded with resin, a thermally conductive first metal pad 124 attached to the opposite side of the FPCB 121 where the thermistor 122 is located, and the FPCB 121 Consisting of a second thermally conductive metal pad 125 attached to both ends, and a connection hole 126 formed at both ends of the FPCB 121 and soldered to the upper connection part 142 of the main body 110 and the terminal 140 do.

여기서 상기 제1금속패드(124)는 알루미늄재질로 배터리셀 모듈(220)의 온도를 서미스터(122)로 빠르게 전달하는 역할을 수행하게 됩니다.Here, the first metal pad 124 is made of aluminum and serves to quickly transfer the temperature of the battery cell module 220 to the thermistor 122.

또한 상기 몰딩부(122)는 진동에 의한 서미스터(122)의 이탈을 방지하고 외부 이물질(수분)이 침투하는 것을 방지하여 준다.In addition, the molding part 122 prevents separation of the thermistor 122 due to vibration and prevents foreign matter (moisture) from penetrating.

상기 탄성부재(130)는 패드형태로 구성되며, 내측으로 상기 센서부(120)의 몰딩부(122)가 위치할 수 있도록 통공(131)이 형성된다.The elastic member 130 is configured in a pad shape, and a through hole 131 is formed so that the molding part 122 of the sensor unit 120 can be located inside.

또한 상기 탄성부재(130)는 상기 본체부(110)의 안착홈(112)에 삽입 장착되며, 그 상부에 위치하게 되는 센서부(120)로 일정한 탄성력을 제공하게 된다.In addition, the elastic member 130 is inserted into the seating groove 112 of the main body 110 and provides a constant elastic force to the sensor unit 120 positioned thereon.

이와 같은 구조는 상기 탄성부재(130)가 상기 센서부(120)의 서미스터(122)가 위치한 제1금속패드(124)로 압착 탄성력을 부여하여, 상기 제1금속패드(124)가 도 6에서와 같이 배터리셀 모듈(220)에 더욱 밀착될 수 있는 구조를 제공한다.In this structure, the elastic member 130 imparts a compressive elastic force to the first metal pad 124 on which the thermistor 122 of the sensor unit 120 is located, so that the first metal pad 124 is shown in FIG. It provides a structure that can be more closely contacted to the battery cell module 220 as described above.

따라서 상기 센서부(120)는 에어겝(Air gap)이 최소화되고 열전도성이 향상되어 서미스터(122)의 감도가 향상되는 것이다.Accordingly, the sensor unit 120 minimizes an air gap and improves thermal conductivity, thereby improving the sensitivity of the thermistor 122.

참고적으로 상기 배터리셀 모듈(220)는 도 7에서와 같이 다수개의 배터리셀(221)로 이루어진다.For reference, the battery cell module 220 includes a plurality of battery cells 221 as shown in FIG. 7.

이와 같이 구성되는 본 발명의 조립과정과 작용을 이하 설명한다.The assembly process and operation of the present invention configured as described above will be described below.

먼저, 사출 성형된 본체부(110)의 양측면 성형홈부(114)를 통해 2개의 단자(140)를 인서트 사출 성형한다.First, the two terminals 140 are insert injection-molded through the molding grooves 114 on both sides of the injection-molded main body 110.

이때 상기 단자(140)의 상단접속부(142)는 본체부(110)의 노출공(113)에 노출되도록 구성되고, 상기 단자(140)의 하단접속부((141)는 본체부(110)의 저면을 기준으로 절곡된 형태를 유지하게 된다.At this time, the upper connection portion 142 of the terminal 140 is configured to be exposed to the exposed hole 113 of the body portion 110, and the lower connection portion 141 of the terminal 140 is the bottom surface of the body portion 110 The bent shape is maintained based on.

그리고 상기 센서부(120)의 제작을 위하여, 상기 본체부(110)의 폭과 길이에 대응되는 띠형태의 FPCB(121)를 재단하고, 상기 FPCB(121)의 중앙에 온도센서인 서미스터(122)를 SMD 실장한다.And for the manufacture of the sensor unit 120, the band-shaped FPCB 121 corresponding to the width and length of the main body unit 110 is cut, and the thermistor 122 is a temperature sensor at the center of the FPCB 121. ) Is SMD mounted.

그런 다음, 상기 서미스터(122) 주위를 열수지(Thermal Resin)로 오버 몰딩하여 몰딩부(123)를 성형하고, 상기 서미스터(122)가 위치한 FPCB(121)의 반대편에 열전도성 제1금속패드(124)를 부착한다.Then, the thermistor 122 is over-molded with a thermal resin to form the molding part 123, and the thermally conductive first metal pad 124 is opposite to the FPCB 121 where the thermistor 122 is located. ) Is attached.

그리고 상기 FPCB(121)의 양단에도 열전도성 제2금속패드(125)를 부착하고, 상기 FPCB(121)의 양단에 본체부(110) 단자(140)의 상단접속부(142)와 솔더링될 수 있도록 접속공(126)을 천공한다.In addition, second thermally conductive metal pads 125 are attached to both ends of the FPCB 121, and soldered to the upper connection part 142 of the terminal 140 of the main body 110 at both ends of the FPCB 121. The connection hole 126 is drilled.

이와 같이 본체부(110)와 센서부(120)가 도 5와 같이 제작 완료되면, 상기 센서부(120)의 몰딩부(123)가 탄성부재(130)의 통공(131)에 위치하도록 상기 탄성부재(130)를 FPCB(121)에 부착한다.When the body part 110 and the sensor part 120 are manufactured as shown in FIG. 5 as described above, the elasticity so that the molding part 123 of the sensor part 120 is located in the through hole 131 of the elastic member 130. The member 130 is attached to the FPCB 121.

그런 다음, 상기 센서부(120)를 상기 탄성부재(130)가 본체부(110)의 안착홈(112)에 삽입되도록 결합함과 동시에 양단의 접속공(126)이 단자(140)의 상단접속부(142)에 끼워지도록 본체부(110)에 장착한다.Then, the sensor unit 120 is coupled so that the elastic member 130 is inserted into the seating groove 112 of the body unit 110, and at the same time, the connection holes 126 at both ends are the upper connection part of the terminal 140 It is mounted on the main body 110 so as to fit into the 142.

이와 같이 상기 센서부(120) 및 탄성부재(130)가 본체부(110)의 상단에 결합되면, 도 1에서와 같이 상기 단자(140)의 상단접속부(142)를 솔더링(143) 하여 상기 센서부(120)의 서미스터(122)가 양 단자(140)(140)와 통전되도록 하여 준다.In this way, when the sensor unit 120 and the elastic member 130 are coupled to the upper end of the body unit 110, the upper connection unit 142 of the terminal 140 is soldered 143 as shown in FIG. The thermistor 122 of the part 120 is energized with both terminals 140 and 140.

이와 같이 온도센서(100)의 조립이 완료되면, 상기 본체부(110) 단자(140)의 하부접속부(141)를 도 6 및 도 7과 같이 메인PCB(210)의 소정부위에 솔더링하여 고정한다. When the assembly of the temperature sensor 100 is completed in this way, the lower connection part 141 of the terminal 140 of the main body 110 is fixed by soldering to a predetermined part of the main PCB 210 as shown in FIGS. 6 and 7. .

이때 온도센서(100)는 배터리셀 모듈(220)에 하나씩 설치되며, 상기 배터리셀 모듈(220)의 개수와 위치에 상응되도록 메인PCB(210)의 소정부위에 소정 개수 장착되어진다. At this time, the temperature sensors 100 are installed one by one on the battery cell module 220, and a predetermined number are mounted on a predetermined portion of the main PCB 210 so as to correspond to the number and position of the battery cell modules 220.

그런 다음, 상기 온도센서(100)의 센서부(120)중, 열전도성 제1금속패드(124)가 탄성부재(130)에 의해 배터리셀 모듈(220)에 완전 밀착될 수 있도록 거리를 조절한 후, 상기 메인PCB(210)를 배터리팩 내부의 미 도시된 구조물을 통해 고정시켜주게 된다.Then, among the sensor units 120 of the temperature sensor 100, the distance is adjusted so that the first thermally conductive metal pad 124 is completely in close contact with the battery cell module 220 by the elastic member 130. Thereafter, the main PCB 210 is fixed through a structure not shown inside the battery pack.

실제 차량용 배터리팩의 내부에 위치하는 배터리셀 모듈(220)과 메인PCB(210), 그리고 상기 배터리셀(220)과 메인PCB(210) 사이에 압착형태로 장착되는 다수개의 온도센서(100)는 도 7의 구성과 같게 된다.The battery cell module 220 and the main PCB 210 located inside the vehicle battery pack, and a plurality of temperature sensors 100 mounted in the form of compression between the battery cell 220 and the main PCB 210 are It is the same as the configuration in FIG. 7.

상기 도 7에서는 단일개의 배터리셀 모듈(220)과 단일개의 온도센서(100)만을 도시한 상태이다.In FIG. 7, only a single battery cell module 220 and a single temperature sensor 100 are shown.

이상에서와 같이 본 발명 차량용 배터리 온도센서(100)는 차량용 리튬이온 배터리셀(220)에 완전 밀착되는 구조로 열전도성 상승으로 인한 응답속도를 빠르게 한 효과를 제공한다.As described above, the vehicle battery temperature sensor 100 has a structure in which the vehicle battery temperature sensor 100 is completely in close contact with the vehicle lithium ion battery cell 220 and provides an effect of speeding the response speed due to the increase in thermal conductivity.

또한 본 발명 차량용 배터리 온도센서(100)는 부품수가 적고 제작 공정이 간단하여 생산성을 크게 향상시킨 장점을 제공하게 된다.In addition, the vehicle battery temperature sensor 100 according to the present invention provides an advantage of greatly improving productivity because the number of parts is small and the manufacturing process is simple.

100: 온도센서 110: 본체부
111: 돌기부 112: 안착홈
113: 노출공 114: 성형홈부
120: 센서부 121: FPCB
122: 서미스터 123: 몰딩부
124: 제1금속패드 125: 제2금속패드
126: 접속공 130: 탄성부재
131: 통공 140: 단자
141: 하단접속부 142: 상단접속부
210: 메인PCB 220: 배터리셀 모듈
100: temperature sensor 110: main body
111: protrusion 112: seating groove
113: exposed hole 114: forming groove
120: sensor unit 121: FPCB
122: thermistor 123: molding part
124: first metal pad 125: second metal pad
126: connection hole 130: elastic member
131: through hole 140: terminal
141: lower connection part 142: upper connection part
210: main PCB 220: battery cell module

Claims (3)

상부 중앙에 내측으로 탄성부재(130)가 삽입되는 안착홈(112)이 형성되는 돌기부(111)와, 상단 양측으로 단자(140)의 상단접속부(142)가 노출되도록 형성되는 노출공(113)과, 상기 노출공(113)의 하부로 상기 단자(140)가 장착되도록 형성되는 성형홈부(114)를 포함하는 본체부(110);
일정한 폭을 가지는 띠형태의 FPCB(121)와, 상기 FPCB(121)의 중앙에 SMD 실장되는 서미스터(122)와, 상기 서미스터(122)를 수지로 오버 몰딩한 몰딩부(123)와, 상기 FPCB(121)의 양단에 형성되어 본체부(110) 단자(140)의 상단접속부(142)와 솔더링되는 접속공(126)을 포함하는 센서부(120);
상기 본체부(110)의 안착홈(112)에 삽입 장착되며, 그 상부에 위치하게 되는 센서부(120)로 일정한 탄성력을 제공하는 탄성부재(130); 및
일측으로 메인PCB(210)에 솔더링되는 하단접속부(141)와, 타측으로 상기 본체부(110)의 노출공(113)에 관통 노출되어 센서부(120)의 FPCB와 솔더링되는 상단접속부(142)로 구성되는 단자(140)를 포함하는 것을 특징으로 하는 차량용 배터리 온도센서.
The protrusion 111 in which the seating groove 112 into which the elastic member 130 is inserted is formed in the upper center, and the exposed hole 113 formed to expose the upper connection part 142 of the terminal 140 to both sides of the upper end And, a body portion 110 including a forming groove 114 formed to be mounted to the terminal 140 under the exposed hole 113;
A band-shaped FPCB 121 having a certain width, an SMD-mounted thermistor 122 in the center of the FPCB 121, a molding part 123 in which the thermistor 122 is overmolded with resin, and the FPCB A sensor unit 120 formed at both ends of the body 121 and including a connection hole 126 to be soldered with the upper connection portion 142 of the main body portion 110 and the terminal 140;
An elastic member 130 inserted into the seating groove 112 of the main body 110 and providing a constant elastic force to the sensor unit 120 positioned thereon; And
A lower connection part 141 soldered to the main PCB 210 on one side, and an upper connection part 142 soldered to the FPCB of the sensor unit 120 by being exposed through the exposed hole 113 of the body part 110 on the other side A vehicle battery temperature sensor comprising a terminal 140 consisting of.
청구항 1에 있어서,
상기 센서부(120)의 서미스터(122)가 위치한 FPCB(121)의 반대편에는 열전도성 제1금속패드(124)가 부착되는 것을 특징으로 하는 차량용 배터리 온도센서.
The method according to claim 1,
A vehicle battery temperature sensor, characterized in that a first thermally conductive metal pad 124 is attached to the opposite side of the FPCB 121 where the thermistor 122 of the sensor unit 120 is located.
청구항 1에 있어서,
상기 탄성부재(130)는 내측으로 상기 센서부(120)의 몰딩부(122)가 위치할 수 있도록 통공(131)이 형성되는 것을 특징으로 하는 차량용 배터리 온도센서.






The method according to claim 1,
The elastic member 130 is a vehicle battery temperature sensor, characterized in that the through hole 131 is formed so that the molding portion 122 of the sensor unit 120 can be located inside.






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KR20150128015A (en) 2014-05-08 2015-11-18 암페놀센싱코리아 유한회사 Contact type sensor for measuring temperature of vehicle battery
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