WO1996028846A1 - Dissipateur de chaleur - Google Patents

Dissipateur de chaleur Download PDF

Info

Publication number
WO1996028846A1
WO1996028846A1 PCT/GB1996/000567 GB9600567W WO9628846A1 WO 1996028846 A1 WO1996028846 A1 WO 1996028846A1 GB 9600567 W GB9600567 W GB 9600567W WO 9628846 A1 WO9628846 A1 WO 9628846A1
Authority
WO
WIPO (PCT)
Prior art keywords
fins
metal
heat sink
walls
wax
Prior art date
Application number
PCT/GB1996/000567
Other languages
English (en)
Inventor
Thomas Mcquade
Original Assignee
Barr & Stroud Limited
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 Barr & Stroud Limited filed Critical Barr & Stroud Limited
Publication of WO1996028846A1 publication Critical patent/WO1996028846A1/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427Cooling by change of state, e.g. use of heat pipes
    • H01L23/4275Cooling by change of state, e.g. use of heat pipes by melting or evaporation of solids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • F28D2021/0029Heat sinks
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Definitions

  • This invention relates to heat sinks particularly for use with devices, typically electrical or electronic devices for dissipating heat generated by such devices.
  • heat sinks are well known some of which comprise a metal structure having an extended surface area which is exposed to a current of air or liquid as the heat dissipating medium.
  • the air current may be by natural convection or may be fan generated.
  • the liquid may be pumped.
  • Another known form of heat sink which may also be force cooled, has the metal structure in the form of a framework forming a plurality of cells each housing a body of wax. The wax absorbs heat delivered to one of the metal walls of the framework firstly by temperature increase and then by phase change, from solid to liquid, which is equivalent to a temperature rise of about 150°C.
  • a heat sink comprising a unitary metal framework made of highly thermally-conductive metal, having a pair of metal walls extending substantially parallel to each other and held in spaced mutual relationship by a plurality of metal fins, the fins being substantially parallel to each other and extending transversely to the metal walls, the arrangement being such that the framework defines a plurality of cells between adjacent fins, the cells being substantially filled with a fill material of low thermal conductivity and high latent heat of fusion, characterised by selecting the following features in combination: i) the metal is aluminium; ii) the fins have a thickness in the range 0.10 to
  • the fill material is a wax.
  • the effective thermal resistance of the heat sink is very low, significantly lower than hitherto which results in the temperature of the metal wall input face being maintained at a comparatively low temperature, typically not more than 5°C greater than the temperature at which the wax fill material melts, until the entirety of the wax fill material has melted.
  • the heat sink is comparatively small in size and weight.
  • the wax fill material may be any one of a number of different waxes having different melt temperatures and latent heat of fusion.
  • Particular waxes may be selected for any particular application of the heat sink, for example from the data listed in the "Handbook of Chemistry and Physics" published from time to time by CRC Press, Inc. (for example, the 65th edition published in 1984/5) .
  • the waxes may be long-chain hydrocarbons or silicone based materials. They are selected because they are inexpensive and non-toxic, usually with a melting temperature below 150°C. Also, they have comparatively low thermal conductivity.
  • the drawing shows a heat sink 10 comprising a unitary metal framework made of aluminium which is a highly thermally-conductive metal.
  • the framework is formed of a pair of substantially parallel walls 1 which are comparatively thick and which are interconnected and held in spaced mutual relationship by a plurality of spaced fins 2 which are comparatively thin.
  • the fins 2 are substantially parallel to each other and extend transversely, preferably orthogonally, to the walls 1.
  • the spaces between adjacent fins 2 and bonded by the walls 1 define cells 4 which are substantially filled with wax material of low thermal conductivity and high latent heat of fusion.
  • the fins 2 are about 0.15 mm thick and have a pitch or spacing 3 which is less than 1.5 mm and for example 0.'65mm.
  • the walls 1 are typically 0.4mm in thickness and are spaced apart typically by about 5 to 10mm although this is not critical.
  • the wax may for example be Naphthalene 1,7- dichloro which has a melting point of about 63°C and a latent heat of fusion of about 250 KJ/kg.
  • one of the metal walls 1 forms the heat input face of the heat sink 10 and is placed in intimate contact with a device which is to be cooled. Because the aluminium is highly thermally conductive heat is rapidly transferred by conduction to each of the fins 2.
  • the fins 2 are both thin and closely spaced so that there is a very large increase in surface area of fins and wax.
  • the thickness of each wax filled cell 4 is comparatively small so that the thermal path length to the centre of each cell 4 is comparatively small and accordingly the thermal resistance of the sink 10 is comparatively low notwithstanding the low thermal conductivity of the wax.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

Dissipateur de chaleur (10) constitué d'un cadre en aluminium composé de parois épaisses (1) reliées par des ailettes minces (2). Les ailettes (2) ont une épaisseur d'environ 0,10 à 0,20 mm et sont espacées d'environ 0,5 mm à 1,5 mm de façon à former des cellules (4). Les cellules (4) sont remplies de cire.
PCT/GB1996/000567 1995-03-14 1996-03-12 Dissipateur de chaleur WO1996028846A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9505069.6A GB9505069D0 (en) 1995-03-14 1995-03-14 Heat sink
GB9505069.6 1995-03-14

Publications (1)

Publication Number Publication Date
WO1996028846A1 true WO1996028846A1 (fr) 1996-09-19

Family

ID=10771136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/000567 WO1996028846A1 (fr) 1995-03-14 1996-03-12 Dissipateur de chaleur

Country Status (3)

Country Link
GB (1) GB9505069D0 (fr)
IL (1) IL117464A0 (fr)
WO (1) WO1996028846A1 (fr)

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0987799A2 (fr) * 1998-09-11 2000-03-22 Cutting Edge Optronics, Inc. Système laser avec matériau à changement de phase pour la commande de température
WO2000037873A1 (fr) * 1998-12-22 2000-06-29 Telefonaktiebolaget Lm Ericsson (Publ) Dispositif de regulation de la temperature
WO2001069360A1 (fr) * 2000-03-16 2001-09-20 Ekl Ag Dispositif de refroidissement pour composants electroniques
US6351478B1 (en) 1998-09-11 2002-02-26 Cutting Edge Optronics, Inc. Passively cooled solid-state laser
CN100568492C (zh) * 2006-12-06 2009-12-09 中国科学院电工研究所 计算机cpu散热装置
CN102065669A (zh) * 2010-11-16 2011-05-18 浙江大学 户外移动通信基站设备用高效冷却系统
WO2011159455A1 (fr) * 2010-06-18 2011-12-22 Midtronics, Inc. Dispositif d'entretien de batterie doté d'un tampon thermique
WO2012107523A1 (fr) * 2011-02-11 2012-08-16 Commissariat à l'énergie atomique et aux énergies alternatives Dispositif absorbeur thermique a materiau a changement de phase
US8513949B2 (en) 2000-03-27 2013-08-20 Midtronics, Inc. Electronic battery tester or charger with databus connection
US20140268564A1 (en) * 2013-03-15 2014-09-18 Finsix Corporation Method and apparatus for controlling heat in power conversion systems
US8872517B2 (en) 1996-07-29 2014-10-28 Midtronics, Inc. Electronic battery tester with battery age input
US8872516B2 (en) 2000-03-27 2014-10-28 Midtronics, Inc. Electronic battery tester mounted in a vehicle
US8937976B2 (en) 2012-08-15 2015-01-20 Northrop Grumman Systems Corp. Tunable system for generating an optical pulse based on a double-pass semiconductor optical amplifier
US8958998B2 (en) 1997-11-03 2015-02-17 Midtronics, Inc. Electronic battery tester with network communication
US8963550B2 (en) 2004-08-20 2015-02-24 Midtronics, Inc. System for automatically gathering battery information
US9018958B2 (en) 2003-09-05 2015-04-28 Midtronics, Inc. Method and apparatus for measuring a parameter of a vehicle electrical system
US9052366B2 (en) 2000-03-27 2015-06-09 Midtronics, Inc. Battery testers with secondary functionality
US9201120B2 (en) 2010-08-12 2015-12-01 Midtronics, Inc. Electronic battery tester for testing storage battery
US9229062B2 (en) 2010-05-27 2016-01-05 Midtronics, Inc. Electronic storage battery diagnostic system
US9244100B2 (en) 2013-03-15 2016-01-26 Midtronics, Inc. Current clamp with jaw closure detection
US9255955B2 (en) 2003-09-05 2016-02-09 Midtronics, Inc. Method and apparatus for measuring a parameter of a vehicle electrical system
US9274157B2 (en) 2007-07-17 2016-03-01 Midtronics, Inc. Battery tester for electric vehicle
US9312575B2 (en) 2013-05-16 2016-04-12 Midtronics, Inc. Battery testing system and method
US9335362B2 (en) 2007-07-17 2016-05-10 Midtronics, Inc. Battery tester for electric vehicle
US9425487B2 (en) 2010-03-03 2016-08-23 Midtronics, Inc. Monitor for front terminal batteries
US9496720B2 (en) 2004-08-20 2016-11-15 Midtronics, Inc. System for automatically gathering battery information
US9588185B2 (en) 2010-02-25 2017-03-07 Keith S. Champlin Method and apparatus for detecting cell deterioration in an electrochemical cell or battery
US9590388B2 (en) 2011-01-11 2017-03-07 Northrop Grumman Systems Corp. Microchannel cooler for a single laser diode emitter based system
US9851411B2 (en) 2012-06-28 2017-12-26 Keith S. Champlin Suppressing HF cable oscillations during dynamic measurements of cells and batteries
US9923289B2 (en) 2014-01-16 2018-03-20 Midtronics, Inc. Battery clamp with endoskeleton design
US9966676B2 (en) 2015-09-28 2018-05-08 Midtronics, Inc. Kelvin connector adapter for storage battery
US10046649B2 (en) 2012-06-28 2018-08-14 Midtronics, Inc. Hybrid and electric vehicle battery pack maintenance device
US10222397B2 (en) 2014-09-26 2019-03-05 Midtronics, Inc. Cable connector for electronic battery tester
US10317468B2 (en) 2015-01-26 2019-06-11 Midtronics, Inc. Alternator tester
US10429449B2 (en) 2011-11-10 2019-10-01 Midtronics, Inc. Battery pack tester
US10473555B2 (en) 2014-07-14 2019-11-12 Midtronics, Inc. Automotive maintenance system
US10608353B2 (en) 2016-06-28 2020-03-31 Midtronics, Inc. Battery clamp
US10843574B2 (en) 2013-12-12 2020-11-24 Midtronics, Inc. Calibration and programming of in-vehicle battery sensors
US11054480B2 (en) 2016-10-25 2021-07-06 Midtronics, Inc. Electrical load for electronic battery tester and electronic battery tester including such electrical load
US11325479B2 (en) 2012-06-28 2022-05-10 Midtronics, Inc. Hybrid and electric vehicle battery maintenance device
US11474153B2 (en) 2019-11-12 2022-10-18 Midtronics, Inc. Battery pack maintenance system
US11486930B2 (en) 2020-01-23 2022-11-01 Midtronics, Inc. Electronic battery tester with battery clamp storage holsters
US11513160B2 (en) 2018-11-29 2022-11-29 Midtronics, Inc. Vehicle battery maintenance device
US11545839B2 (en) 2019-11-05 2023-01-03 Midtronics, Inc. System for charging a series of connected batteries
US11566972B2 (en) 2019-07-31 2023-01-31 Midtronics, Inc. Tire tread gauge using visual indicator
US11650259B2 (en) 2010-06-03 2023-05-16 Midtronics, Inc. Battery pack maintenance for electric vehicle
US11668779B2 (en) 2019-11-11 2023-06-06 Midtronics, Inc. Hybrid and electric vehicle battery pack maintenance device
US11740294B2 (en) 2010-06-03 2023-08-29 Midtronics, Inc. High use battery pack maintenance
US11973202B2 (en) 2019-12-31 2024-04-30 Midtronics, Inc. Intelligent module interface for battery maintenance device

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE1106423B (de) * 1959-06-23 1961-05-10 Licentia Gmbh Kuehlkoerper fuer Halbleitergleichrichter
US3215194A (en) * 1963-08-13 1965-11-02 Astro Dynamics Inc Heat sink and method of operating the same
JPH04101450A (ja) * 1990-08-20 1992-04-02 Meidensha Corp 冷却装置
JPH04263000A (ja) * 1991-02-19 1992-09-18 Aisin Seiki Co Ltd 宇宙服用体熱除去装置

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
DE1106423B (de) * 1959-06-23 1961-05-10 Licentia Gmbh Kuehlkoerper fuer Halbleitergleichrichter
US3215194A (en) * 1963-08-13 1965-11-02 Astro Dynamics Inc Heat sink and method of operating the same
JPH04101450A (ja) * 1990-08-20 1992-04-02 Meidensha Corp 冷却装置
JPH04263000A (ja) * 1991-02-19 1992-09-18 Aisin Seiki Co Ltd 宇宙服用体熱除去装置

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* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 336 (E - 1237) 21 July 1992 (1992-07-21) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 053 (M - 1361) 3 February 1993 (1993-02-03) *
S.S. FURKAY ET AL: "Clip-On Module Thermal Capacitor", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 27, no. 3, August 1984 (1984-08-01), pages 1779, XP002005397 *

Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8872517B2 (en) 1996-07-29 2014-10-28 Midtronics, Inc. Electronic battery tester with battery age input
US8958998B2 (en) 1997-11-03 2015-02-17 Midtronics, Inc. Electronic battery tester with network communication
EP0987799A3 (fr) * 1998-09-11 2001-01-10 Cutting Edge Optronics, Inc. Système laser avec matériau à changement de phase pour la commande de température
US6351478B1 (en) 1998-09-11 2002-02-26 Cutting Edge Optronics, Inc. Passively cooled solid-state laser
US6570895B2 (en) 1998-09-11 2003-05-27 Cutting Edge Optronics, Inc. Laser system using phase change material for thermal control
EP0987799A2 (fr) * 1998-09-11 2000-03-22 Cutting Edge Optronics, Inc. Système laser avec matériau à changement de phase pour la commande de température
WO2000037873A1 (fr) * 1998-12-22 2000-06-29 Telefonaktiebolaget Lm Ericsson (Publ) Dispositif de regulation de la temperature
WO2001069360A1 (fr) * 2000-03-16 2001-09-20 Ekl Ag Dispositif de refroidissement pour composants electroniques
DE10012990A1 (de) * 2000-03-16 2001-10-11 Ekl Ag Kühlvorrichtung für elektronische Bauelemente
US8513949B2 (en) 2000-03-27 2013-08-20 Midtronics, Inc. Electronic battery tester or charger with databus connection
US9052366B2 (en) 2000-03-27 2015-06-09 Midtronics, Inc. Battery testers with secondary functionality
US8872516B2 (en) 2000-03-27 2014-10-28 Midtronics, Inc. Electronic battery tester mounted in a vehicle
US9018958B2 (en) 2003-09-05 2015-04-28 Midtronics, Inc. Method and apparatus for measuring a parameter of a vehicle electrical system
US9255955B2 (en) 2003-09-05 2016-02-09 Midtronics, Inc. Method and apparatus for measuring a parameter of a vehicle electrical system
US8963550B2 (en) 2004-08-20 2015-02-24 Midtronics, Inc. System for automatically gathering battery information
US9496720B2 (en) 2004-08-20 2016-11-15 Midtronics, Inc. System for automatically gathering battery information
CN100568492C (zh) * 2006-12-06 2009-12-09 中国科学院电工研究所 计算机cpu散热装置
US9335362B2 (en) 2007-07-17 2016-05-10 Midtronics, Inc. Battery tester for electric vehicle
US9274157B2 (en) 2007-07-17 2016-03-01 Midtronics, Inc. Battery tester for electric vehicle
US9588185B2 (en) 2010-02-25 2017-03-07 Keith S. Champlin Method and apparatus for detecting cell deterioration in an electrochemical cell or battery
US9425487B2 (en) 2010-03-03 2016-08-23 Midtronics, Inc. Monitor for front terminal batteries
US9229062B2 (en) 2010-05-27 2016-01-05 Midtronics, Inc. Electronic storage battery diagnostic system
US11740294B2 (en) 2010-06-03 2023-08-29 Midtronics, Inc. High use battery pack maintenance
US11650259B2 (en) 2010-06-03 2023-05-16 Midtronics, Inc. Battery pack maintenance for electric vehicle
CN102948002A (zh) * 2010-06-18 2013-02-27 密特电子公司 具有热缓冲的电池维护设备
US20110309800A1 (en) * 2010-06-18 2011-12-22 Bertness Kevin I Battery maintenance device with thermal buffer
WO2011159455A1 (fr) * 2010-06-18 2011-12-22 Midtronics, Inc. Dispositif d'entretien de batterie doté d'un tampon thermique
US9419311B2 (en) * 2010-06-18 2016-08-16 Midtronics, Inc. Battery maintenance device with thermal buffer
US9201120B2 (en) 2010-08-12 2015-12-01 Midtronics, Inc. Electronic battery tester for testing storage battery
CN102065669A (zh) * 2010-11-16 2011-05-18 浙江大学 户外移动通信基站设备用高效冷却系统
US9590388B2 (en) 2011-01-11 2017-03-07 Northrop Grumman Systems Corp. Microchannel cooler for a single laser diode emitter based system
US9291406B2 (en) 2011-02-11 2016-03-22 Commissariat à l'énergie atomique et aux énergies alternatives Heat-absorbing device with phase-change material
WO2012107523A1 (fr) * 2011-02-11 2012-08-16 Commissariat à l'énergie atomique et aux énergies alternatives Dispositif absorbeur thermique a materiau a changement de phase
FR2971581A1 (fr) * 2011-02-11 2012-08-17 Commissariat Energie Atomique Dispositif absorbeur thermique a materiau a changement de phase
US10429449B2 (en) 2011-11-10 2019-10-01 Midtronics, Inc. Battery pack tester
US11548404B2 (en) 2012-06-28 2023-01-10 Midtronics, Inc. Hybrid and electric vehicle battery pack maintenance device
US11926224B2 (en) 2012-06-28 2024-03-12 Midtronics, Inc. Hybrid and electric vehicle battery pack maintenance device
US11325479B2 (en) 2012-06-28 2022-05-10 Midtronics, Inc. Hybrid and electric vehicle battery maintenance device
US9851411B2 (en) 2012-06-28 2017-12-26 Keith S. Champlin Suppressing HF cable oscillations during dynamic measurements of cells and batteries
US10046649B2 (en) 2012-06-28 2018-08-14 Midtronics, Inc. Hybrid and electric vehicle battery pack maintenance device
US8937976B2 (en) 2012-08-15 2015-01-20 Northrop Grumman Systems Corp. Tunable system for generating an optical pulse based on a double-pass semiconductor optical amplifier
US9276375B2 (en) 2012-08-15 2016-03-01 Northrop Grumman Systems Corp. Tunable system for generating an optical pulse based on a double-pass semiconductor optical amplifier
US9861015B2 (en) * 2013-03-15 2018-01-02 Finsix Corporation Method and apparatus for controlling heat in power conversion systems
US20140268564A1 (en) * 2013-03-15 2014-09-18 Finsix Corporation Method and apparatus for controlling heat in power conversion systems
US9244100B2 (en) 2013-03-15 2016-01-26 Midtronics, Inc. Current clamp with jaw closure detection
US9312575B2 (en) 2013-05-16 2016-04-12 Midtronics, Inc. Battery testing system and method
US10843574B2 (en) 2013-12-12 2020-11-24 Midtronics, Inc. Calibration and programming of in-vehicle battery sensors
US9923289B2 (en) 2014-01-16 2018-03-20 Midtronics, Inc. Battery clamp with endoskeleton design
US10473555B2 (en) 2014-07-14 2019-11-12 Midtronics, Inc. Automotive maintenance system
US10222397B2 (en) 2014-09-26 2019-03-05 Midtronics, Inc. Cable connector for electronic battery tester
US10317468B2 (en) 2015-01-26 2019-06-11 Midtronics, Inc. Alternator tester
US9966676B2 (en) 2015-09-28 2018-05-08 Midtronics, Inc. Kelvin connector adapter for storage battery
US10608353B2 (en) 2016-06-28 2020-03-31 Midtronics, Inc. Battery clamp
US11054480B2 (en) 2016-10-25 2021-07-06 Midtronics, Inc. Electrical load for electronic battery tester and electronic battery tester including such electrical load
US11513160B2 (en) 2018-11-29 2022-11-29 Midtronics, Inc. Vehicle battery maintenance device
US11566972B2 (en) 2019-07-31 2023-01-31 Midtronics, Inc. Tire tread gauge using visual indicator
US11545839B2 (en) 2019-11-05 2023-01-03 Midtronics, Inc. System for charging a series of connected batteries
US11668779B2 (en) 2019-11-11 2023-06-06 Midtronics, Inc. Hybrid and electric vehicle battery pack maintenance device
US11474153B2 (en) 2019-11-12 2022-10-18 Midtronics, Inc. Battery pack maintenance system
US11973202B2 (en) 2019-12-31 2024-04-30 Midtronics, Inc. Intelligent module interface for battery maintenance device
US11486930B2 (en) 2020-01-23 2022-11-01 Midtronics, Inc. Electronic battery tester with battery clamp storage holsters

Also Published As

Publication number Publication date
GB9505069D0 (en) 1995-05-03
IL117464A0 (en) 1996-07-23

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