WO2017062022A1 - Bracelet portable - Google Patents

Bracelet portable Download PDF

Info

Publication number
WO2017062022A1
WO2017062022A1 PCT/US2015/054827 US2015054827W WO2017062022A1 WO 2017062022 A1 WO2017062022 A1 WO 2017062022A1 US 2015054827 W US2015054827 W US 2015054827W WO 2017062022 A1 WO2017062022 A1 WO 2017062022A1
Authority
WO
WIPO (PCT)
Prior art keywords
carbon fiber
wearable
fiber composite
composite layer
wearable band
Prior art date
Application number
PCT/US2015/054827
Other languages
English (en)
Inventor
Chi-Hao Chang
Kuan-Ting Wu
Chien Lung YANG
Original Assignee
Hewlett-Packard Development Company, L.P.
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 Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Priority to PCT/US2015/054827 priority Critical patent/WO2017062022A1/fr
Publication of WO2017062022A1 publication Critical patent/WO2017062022A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G06F1/203—Cooling means for portable computers, e.g. for laptops
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/0007—Bracelets specially adapted for other functions or with means for attaching other articles
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/0053—Flexible straps
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/163—Wearable computers, e.g. on a belt

Definitions

  • Wearable technology is on the rise in personal and business use.
  • Wearable devices such as wrist-worn devices, may provide a plurality of functions.
  • Example wearable devices include wearable cameras, smart watches, global positioning system (GPS) tracking devices, weight/energy monitoring devices, emotion monitoring devices, gait/posture correction devices, sleep monitoring devices, fitness monitoring devices, outdoor navigation/tracking devices and the like.
  • the wearable devices may include electronic components, such as processing unit, a display panel, electronic circuitry, battery, means for wireless data exchange, and/or sensors, which may generate heat. The heat generated by the electronic components in the wearable devices may affect lifetime and/or performance of the electronic components.
  • FIG. 1 is a perspective view of an example wearable band illustrating carbon fiber composite layer
  • FIG. 2 is a perspective view of an example wearable band illustrating a carbon fiber composite layer in combination with a thermal insulation layer;
  • Fig. 3 is an example wearable device including a wearable band
  • Fig. 4 is a partial sectional view of an example wearable device illustrating a wearable band and LED devices.
  • the wearable devices may include electronic components, such as processing unit a display panel, electronic circuitry, battery, means for wireless data exchange, sensors and so on, that may generate heat.
  • electronic components such as processing unit a display panel, electronic circuitry, battery, means for wireless data exchange, sensors and so on, that may generate heat.
  • the heat generated by the electronic components in the wearable devices may affect lifetime and/or performance of the electronic components.
  • the present specification describes a wearable band for wearable device applications, the wearable band including a carbon fiber composite layer formed by pre-impregnating a carbon liber with a flexible heat-transfer substrate for dissipating heat from portable electronic devices that are connected to the carbon fiber composite layer.
  • pre-impregnating may refer to obtaining an intimate bond between the carbon fiber and the flexible heat-transfer substrate.
  • pre-impregnating may be used herein to describe a combination of the carbon fibers and a flexible heat-transfer substrate (i.e., resin) in a layer format, where the ratio of fiber to resin is controlled to have proper proportions to produce the intended structure.
  • the flexible heat- transfer substrate may include thermally conductive materials exhibiting substantially high thermal conductivity and are flexible, compliant and/or soft in nature.
  • the cooling of the wearable devices by removing the generated heat may improve lifetime and/or performance of the electronic components.
  • Example wearable device include a wearable camera, a smart watch, a global positioning system (GPS) tracking device, a weight/energy monitoring device, an emotion monitoring device, a gait/posture correction device, a sleep monitoring device, a fitness monitoring device and/or an outdoor navigation/tracking device.
  • GPS global positioning system
  • the portable electronic device can be coupled to the wearable band such that at least a portion of the carbon fiber composite layer is formed along a bottom surface of the portable electronic device.
  • the wearable band can be detachably secured around a body part of the person.
  • Example wearable band is a wristband.
  • the wearable band may further include a thermal insulation layer disposed on an inner surface of the carbon fiber composite layer for contact with skin of a wearer. The thermal insulation layer may reduce the skin burning/irritation due to the generated heat.
  • the present specification describes the carbon fiber composite layer with thermal conductivity in a range of 200-660 watts per meter kelvin (W/m-k) to provide effective heat dissipation from the portable electronic devices.
  • the wearable band including the carbon fiber composite layer may enhance product lifetime for various components included in electronic devices, such as liquid crystal display (LCD) panels, light emitting diodes (LEDs), central processing units (CPUs), batteries and the like.
  • the wearable band including the carbon fiber composite layer may further reduce the risk of any battery explosion due to overheating and further may alleviate overheating of LCD panels by reducing the LCD panel temperature to below skin temperature of about 40° C or lower.
  • the wearable band including the carbon fiber composite layer may improve information loading speed and power efficiency.
  • the wearable band can be designed according to customized or personalized features.
  • the wearable band can be combined with internet of things (loT) technology (e.g., smart band and smart watch).
  • Fig. i is a perspective view of an example wearable band 100 for wearable device applications illustrating a carbon fiber composite layer 102.
  • the wearable band 100 includes the carbon fiber composite layer 102 formed by pre-impregnating a carbon fiber with a flexible heat-transfer substrate to transfer at least a part of heat generated from a portable electronic device 104 that is connected to the carbon fiber composite layer 102.
  • Example flexible heat-transfer substrate includes polyethylene terephthalate, polyethylene naphthalate, polyimide, synthetic paper, polycarbonate, polyacrylics, polyurethane, poly (ether sulfone), rubber, polyolefin and/or elastic polymers.
  • the carbon fiber may include the fibers having diameter in a range of 3-20 micrometer ( ⁇ m), density in a range of 1.7-2.2 gram/cubic centimeter (g/cm 3 ), and thermal conductivity in a range of 1800-1950 W/m-k.
  • Example carbon fiber is a super conducting carbon fiber (SSCF).
  • the carbon fiber composite layer 102 may have thermal conductivity in a range of 200-660 W/m-k and density in a range of 1.4-1.5 g/cm 3 .
  • a carbon fiber is fabricated by chemical vapor deposition with fibers having diameter of about 3-5 pm and thermal conductivity of about 1950 W/m-k. Further, the carbon fiber is pre-impregnated with elastic polymers to form the carbon fiber composite layer, for example, with thermal conductivity in the range of 600-700 W/m-K and density in the range of 1.4-1.5 g/cm 3 .
  • Fig. 2 is a perspective view of an example wearable band 200 illustrating a carbon fiber composite layer 202 in combination with a thermal insulation layer 206.
  • the wearable band 200 includes the carbon fiber composite layer 202 (e.g., the carbon fiber composite layer 102 as shown in Fig. 1).
  • the carbon fiber composite layer 202 comprises an inner surface and an outer surface.
  • the wearable band 200 further includes the thermal insulation layer 206 disposed on the inner surface of the carbon fiber composite layer 202.
  • the insulation layer 206 is disposed on the inner surface of the carbon fiber composite layer 202 such that the thermal insulation layer 206 is in contact with skin of a person wearing the wearable band 200.
  • Example thermal insulation layer 206 includes fiberglass, mineral wools, cellulose, calcium silicate, cellular glass, elastomeric foam, phenolic foam, vermiculite, polyurethane foam, and/or polystyrene foam in polymeric resins.
  • Example mineral wools include ceramic fiber, glass and/or stone.
  • the thermal insulation layer 206 may reduce the skin burning/irritation due to heat generated from the portable electronic device 204 that is connected to the wearable band 200.
  • the thermal insulation layer 206 can have the same color as the carbon fiber composite layer 202.
  • the portable electronic device 204 may be disposed/provided on the outer surface of the wearable band 200.
  • the portable electronic device 204 may be fastened to the outer surface of the wearable band 200 or may be clipped on to the outer surface of the wearable band 200.
  • the wearable band 200 can be designed according to customized or personalized features such that the wearable band 200 can support different types of portable electronic devices.
  • the wearable band 200 is flexible, i.e., the carbon fiber composite layer 202 and the thermal insulation layer 206 are made up of flexible materials.
  • the wearable band 200 can be detachably secured around a body part of the wearer through a buckle or any other means.
  • Fig. 3 is an example wearable device 300 including a wearable band 302 (e.g., the wearable band 200 of Fig. 2).
  • Example wearable device includes, but not limited to, a wearable camera, a smart watch, a global positioning system (GPS) tracking device, a weight/energy monitoring device, an emotion monitoring device, a gait/posture correction device, a sleep monitoring device, a fitness monitoring device and/or an outdoor navigation/tracking device.
  • the wearable device 300 includes a portable electronic device 308.
  • Example semiconductor elements/electronic components housed in the portable electronic device 308 include a central processing unit (CPU), a display panel, a printed circuit board, a battery, means for wireless data exchange, sensors and/or any other such heat generating components/devices.
  • Example display panel includes, but not limited to, organic light-emitting diode (OLED), liquid-crystal-display (LCD), electro-wetting display, electrochromic display, and bi-stable display such as electrophoretic display, cholesteric liquid crystal display (ChLCD) and micro- electromechanical systems (MEMS) -based display.
  • the semiconductor elements can be housed in a single compact module (i.e., the portable electronic device 308).
  • a flexible circuit board with semiconductor elements/components covering the length of the wearable band 302 can be utilized. These electronic components may generate heat during operation.
  • the wearable device 300 further includes a wearable band 302 coupled to the portable electronic device 308.
  • the wearable band 302 includes a carbon fiber composite layer 304 formed by pre-impregnating carbon fiber with a flexible heat-transfer substrate, The carbon fiber composite layer 304 transfers/dissipates at least a part of heat generated from the portable electronic device 308 to the surrounding air.
  • the carbon fiber composite layer 304 transfers/dissipates at least a part of heat generated from the portable electronic device 308 by conduction.
  • the flexible heat-transfer substrate is made up of at least one material selected from a group consisting of polyethylene terephthalate, polyethylene naphthalate, polyimide, synthetic paper, polycarbonate, polyacrylics, polyurethane, poly (ether sulfone), rubber, polyolefin and elastic polymers.
  • the wearable band 302 includes a thermal insulation layer 306 disposed on the inner surface of the carbon fiber composite layer 304 for contact with skin of a wearer.
  • the thermal insulation layer 306 may reduce the skin burning/irritation due to heat generated from the portable electronic device 308.
  • the thermal insulation layer 306 is made up of at least one material selected from a group consisting of fiberglass, mineral wools, cellulose, calcium silicate, cellular glass, elastomeric foam, phenolic foam, vermiculite, polyurethane foam, and polystyrene foam in polymeric resins.
  • the mineral wools include ceramic fiber, glass and/or stone.
  • Fig. 4 is a partial sectional view of an example wearable device 400 illustrating a wearable band 402 and light-emitting diode (LED) devices 408.
  • the LED devices 408 are disposed within the wearable band 402, particularly disposed within the carbon fiber composite layer 404.
  • a thermal insulation layer 406 is disposed on an internal surface of the carbon fiber composite layer 404 such that the thermal insulation layer 406 is in contact with skin of a person wearing the wearable band 402 and protects the skin of the wearer from the heat generated by the LED devices 408.
  • multiple electronic components e.g., LEDS 408 can be disposed along the length of the wearable band 402 using a flexible circuit board.
  • the present application discloses flexible heat transfer carbon fiber composite band for dissipating heat generated from electronic components housed in wearable devices.
  • the portable electronic device e.g., the portable electronic device 104, 204, 308 or 408
  • the wearable band e.g., the wearable band 100, 200, 302 or 402
  • the carbon fiber composite layer is formed on and covers the bottom surface of the portable electronic device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

Dans un exemple, un bracelet portable est décrit, lequel comprend une couche composite de fibre de carbone formée par pré-imprégnation d'une fibre de carbone avec un substrat de transfert de chaleur flexible. La couche composite de fibre de carbone transfère au moins une partie de la chaleur générée à partir d'un dispositif électronique portable qui est relié à la couche composite de fibre de carbone.
PCT/US2015/054827 2015-10-09 2015-10-09 Bracelet portable WO2017062022A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2015/054827 WO2017062022A1 (fr) 2015-10-09 2015-10-09 Bracelet portable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2015/054827 WO2017062022A1 (fr) 2015-10-09 2015-10-09 Bracelet portable

Publications (1)

Publication Number Publication Date
WO2017062022A1 true WO2017062022A1 (fr) 2017-04-13

Family

ID=58488282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/054827 WO2017062022A1 (fr) 2015-10-09 2015-10-09 Bracelet portable

Country Status (1)

Country Link
WO (1) WO2017062022A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6222114B1 (en) * 1998-02-20 2001-04-24 Seiko Instruments Inc. Portable wrist device
US20020186535A1 (en) * 2001-05-11 2002-12-12 International Business Machines Corporation Apparatus and method for cooling a wearable electronic device
US20070128384A1 (en) * 2005-12-05 2007-06-07 Shui-Yuan My Notebook case structure
WO2011094875A1 (fr) * 2010-02-05 2011-08-11 Solianis Holding Ag Détecteur portable
US20130087180A1 (en) * 2011-10-10 2013-04-11 Perpetua Power Source Technologies, Inc. Wearable thermoelectric generator system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6222114B1 (en) * 1998-02-20 2001-04-24 Seiko Instruments Inc. Portable wrist device
US20020186535A1 (en) * 2001-05-11 2002-12-12 International Business Machines Corporation Apparatus and method for cooling a wearable electronic device
US20070128384A1 (en) * 2005-12-05 2007-06-07 Shui-Yuan My Notebook case structure
WO2011094875A1 (fr) * 2010-02-05 2011-08-11 Solianis Holding Ag Détecteur portable
US20130087180A1 (en) * 2011-10-10 2013-04-11 Perpetua Power Source Technologies, Inc. Wearable thermoelectric generator system

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