CN106160126A - Wireless charging device - Google Patents

Wireless charging device Download PDF

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Publication number
CN106160126A
CN106160126A CN201610809260.2A CN201610809260A CN106160126A CN 106160126 A CN106160126 A CN 106160126A CN 201610809260 A CN201610809260 A CN 201610809260A CN 106160126 A CN106160126 A CN 106160126A
Authority
CN
China
Prior art keywords
shell
wireless charging
generating component
charging device
heat generating
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201610809260.2A
Other languages
Chinese (zh)
Inventor
王畅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Jingyu Medical Equipment Co Ltd
Original Assignee
Suzhou Jingyu Medical Equipment Co Ltd
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 Suzhou Jingyu Medical Equipment Co Ltd filed Critical Suzhou Jingyu Medical Equipment Co Ltd
Priority to CN201610809260.2A priority Critical patent/CN106160126A/en
Publication of CN106160126A publication Critical patent/CN106160126A/en
Pending legal-status Critical Current

Links

Classifications

    • H02J7/025
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H05K7/20436Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
    • H05K7/20445Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing the coupling element being an additional piece, e.g. thermal standoff
    • H05K7/20472Sheet interfaces
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H05K7/20436Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
    • H05K7/20445Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing the coupling element being an additional piece, e.g. thermal standoff
    • H05K7/20472Sheet interfaces
    • H05K7/20481Sheet interfaces characterised by the material composition exhibiting specific thermal properties

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Present invention is disclosed a kind of wireless charging device, including: shell, it is arranged at shell interior for the charging heat generating component to the medical treatment device charging implanted, described shell has the bottom of close skin and relative top, described charging heat generating component closes on described bottom and arranges, and arranges the air gap between described charging heat generating component and described bottom.By arranging the air gap between charging heat generating component and the bottom of shell, it is possible to realize preferably dispelling the heat, thus reduce the wireless charging device temperature near people side.

Description

Wireless charging device
Technical field
The present invention relates to a kind of wireless charging device, a kind of for planting to the rechargeable type within human implantable Enter the wireless charging device that medical treatment device is charged.
Background technology
Implantable medical device wide variety, have wide range of applications, such as cardiac pacemaker and spinal stimulator, implantable nerve Stimulator etc..On market, the lithium primary cell of existing implantable medical product many employings high-energy-density is powered, and the life-span is big Much shorter.In recent years, along with wireless technology and the development of lithium rechargeable batteries technology, the chargeable implanted that the exploitation life-span is longer Medical device products has become as the main trend of future development.
There are the tissue isolation such as skin between implantable medical device implantation within a patient, and external charging device, need to use Percutaneous wireless charging mode.This charging modes is generally basede on electromagnetic coupled principle, utilizes penetration by electromagnetic fields human body skin to implantation Formula medical treatment device transmission energy.In order to improve charge efficiency, need to be placed directly against on human body skin, and charging primary coil is positioned at Near human body skin side.Charging primary coil is in charging process, owing to the resistance of self can produce heat, simultaneously because portion Dividing charger to use big electric current quick charge, cause caloric value very big, temperature when making human body direct feel arrive charging raises, Affect Consumer's Experience, in some instances it may even be possible to scalded skin.
It addition, the measure used at present is detection skin temperature, if exceeding threshold values, then charger stops charging.But this It is unfavorable for extending faster charge time.
Summary of the invention
It is an object of the invention to provide a kind of wireless charging for being charged to rechargeable type implantable medical device Device, this wireless charging device charge efficiency is high, it is possible to reduce temperature and the temperature rise of the outer surface of the shell near primary coil Speed, improves the experience sensation of user.
For achieving the above object, the present invention provides a kind of wireless charging device, including: shell, it is arranged in shell For giving the charging heat generating component of the medical treatment device charging implanted, described shell has the bottom of close skin and relative Top, described charging heat generating component close on described bottom arrange, between described charging heat generating component and described bottom, sky is set Gas gap.
As the further improvement of an embodiment of the present invention, described cover top portion and bottom are made up of different materials, The thermal conductivity of the material constituting top is more than the thermal conductivity of the material bottom constituting.
As the further improvement of an embodiment of the present invention, described wireless charging device also includes being arranged in shell Support, described charging heat generating component supports on the bracket, and the air gap is arranged between described support and described bottom.
As the further improvement of an embodiment of the present invention, in described shell also includes arranging with described bottom interval Shell, described the air gap is arranged between described bottom and inner shell.
As the further improvement of an embodiment of the present invention, described charging heat generating component is supported on described inner shell.
As the further improvement of an embodiment of the present invention, described charging heat generating component includes launching for rechargeable energy Primary coil and PCB assembly spaced with primary coil and battery.
As the further improvement of an embodiment of the present invention, the side of the most described bottom of described primary coil arranges magnetic Screen layer.
As the further improvement of an embodiment of the present invention, the bottom of described shell is made up of plastics, described shell Top is made up of metal.
As the further improvement of an embodiment of the present invention, arrange between described charging heat generating component and described top and lead Hot material layer.
As the further improvement of an embodiment of the present invention, described thermal conductive material layer is configured to graphite flake layer, copper sheet layer Or the aluminium alloy material bed of material.
Compared with prior art, the beneficial effects of the present invention is: by the bottom of charging heat generating component and shell it Between the air gap is set, it is possible to realize preferably dispelling the heat, thus reduce the wireless charging device temperature near people side.It addition, While increasing the thermal resistance of charging heat generating component bottom, reduce the thermal resistance on charging heat generating component top, thus change heat flow Distribution, the heat that charging heat generating component the produces conduction by thermal conductive material layer, dispel the heat outside wireless charging device, thus greatly Decrease greatly the heat flow flowing to charging side, heat generating component place shell, reduce temperature and the temperature rise speed of outer surface.
Accompanying drawing explanation
Fig. 1 is the sectional view of wireless charging device in currently preferred first embodiment;
Fig. 2 is the sectional view of wireless charging device in currently preferred second embodiment.
Detailed description of the invention
Describe the present invention below with reference to detailed description of the invention shown in the drawings.But these embodiments are also It is not intended to the present invention, structure that those of ordinary skill in the art is made, method or functionally according to these embodiments Conversion is all contained in protection scope of the present invention.
The wireless charging device that the present invention provides is for being charged to rechargeable type implantable medical device, and rechargeable type is planted Enter medical treatment device and be applicable to implanted lesions located in deep brain system (DBS), implanted cortex stimulating system (CNS), implanted Spinal cord stimulation trial system (SCS), implanted Sacral nerve electrical stimulation system (SNS), implanted vagus nerve electric stimulation (VNS) Deng the stimulating system that other is similar.Implantation within a patient when rechargeable type implantable medical device uses, for applying arteries and veins to patient Rush electricity irritation.
As it is shown in figure 1, the preferred first embodiment of wireless charging device of the present invention, outside this wireless charging device 100 includes Shell 20, the charging heat generating component being arranged in shell 20, its housing 20 has the bottom 203 of close skin and relative top Portion 201, constitutes the sidepiece 202 of shell 20 between top 201 and bottom 203.Charging heat generating component closes on bottom 203 and arranges.Tool Body, support 30 is set in shell 20, support 30 be layer adjacent to bottom 203 position and and bottom 203 between there is sky Gas gap 22, charging heat generating component is supported on support 30, so that also have sky between charging heat generating component and bottom 203 Gas gap 22.Because the thermal conductivity of air is extremely low, the air gap 22 is set and can greatly reduce generation on charging heat generating component Heat is delivered to the bottom 203 of shell 20.Further, can be plastics or other thermal conductance by the material structure of bottom 203 The material that rate is relatively low, the most just can reduce the heat being transmitted to outer casing bottom 203, further it addition, the material of support 30 is also It is so structured that plastics or the relatively low material of other thermal conductivity, the heat that charging heat generating component produces can be less by propping up Frame 30 conducts.So, just heat can be reduced to outer casing bottom by the way of increasing the thermal resistance of charging heat generating component bottom The transmission of 203.
In the present embodiment further, charging heat generating component top arranges heat conductive pad 80, heat conductive pad 80 and the top of shell Arranging thermal conductive material layer 90 between 201, thermal conductive material layer 90 is made up of high thermal conductivity material, and so, charging heat generating component produces Heat pass to thermal conductive material layer 90 through heat conductive pad 80, on thermal conductive material layer 90, heat flow spreads rapidly along horizontal direction, The top 201 simultaneously conducted to shell arrives surrounding.Preferably, the material structure at the top 201 of shell be metal or The material that other thermal conductivity is high, so, just can increase heat by the way of reducing the thermal resistance on charging heat generating component top and arrive The transmission of cover top portion 201.
By the thermal resistance on the above-mentioned thermal resistance increasing charging heat generating component bottom and reduction charging heat generating component top Mode, thus it is possible to vary heat flow is distributed so that the heat major part that charging heat generating component produces flows to the upper of charging heat generating component Portion, greatly reducing the heat flowing to outer casing bottom 203, reduces temperature and the temperature rise speed of outer casing bottom 203, and raising makes The experience sensation of user.
Concrete, printed circuit board (PCB) (PCB) assembly 60 that the heat generating component that charges in the present embodiment includes being supported on support, Primary coil 40 and battery 70, wherein printed circuit board (PCB) (PCB) assembly 60 and battery 70 are distributed in the both sides of primary coil 40, Primary coil 40 is i.e. the charging transmitting coil being charged to the medical treatment device implanted.Primary coil 40 closes on shell Bottom 203 is arranged, and so, when wireless charging device 100 charges to implantable medical device when, wireless charging device 100 is straight Connect and be attached on human body skin or on unlined garment, primary coil 40 apart from the position of implantable medical device closer to, thus improve charging Efficiency.
Further, the back side of primary coil 40, the side of outer casing bottom 203 arranges magnetic masking layer the most dorsad 50, primarily serving the purpose of of magnetic masking layer 50: on the one hand, primary coil 40 is carried out electromagnetic shielding, thus avoids body primary coil During 40 wireless energy transmission, highly thermally conductive material 90 produces eddy current thus produces heat;On the other hand, by primary line Enclose the heat produced in 40 charging processes to conduct to cover top portion 201, to be dispelled the heat in surrounding air by cover top portion 201. Magnetic masking layer 50 typically uses nonmetallic materials to prepare, it is preferred that magnetic masking layer 50 uses conductive carbon material, such as carbon fiber, CNT etc..
Printed circuit board (PCB) (PCB) assembly 60 generally comprises printed circuit board (PCB) 601 and the height being arranged on printed circuit board (PCB) Heater members 602, heat conductive pad 80 is arranged on magnetic masking layer 50 and printed circuit board (PCB) (PCB) assembly 60, and heat conductive pad 80 connects To thermal conductive material layer 90.The heat major part that primary coil 40 produces passes to Heat Conduction Material through magnetic masking layer 50 and heat conductive pad 80 Layer 90, on thermal conductive material layer 90, heat flow spreads rapidly along horizontal direction, conducts to cover top portion 201 arrival around simultaneously Environment.In like manner, the heat major part that the upper high heater members 602 of PCB produces pass to thermal conductive material layer 90 via heat conductive pad 80 and Cover top portion 201, eventually arrives in surrounding.Battery 70 is also one of heater members, the battery 70 in wireless charging device Again may be by layer of high thermal conductivity material 90 to dispel the heat laterally.In the present embodiment preferably, thermal conductive material layer 90 include graphite flake, Copper sheet etc..
In the preferred first embodiment of wireless charging device of the present invention, by the internal junction of reasonable disposition wireless charging device Structure, is arranged at charging heat generating components such as printed circuit board (PCB) (PCB) assembly 60, battery 70, primary coils 40 on support 30, support Exist between 30 and the bottom 203 of shell and be provided with highly heat-conductive material layer 90, so on the air gap 22, and charging heat generating component Change charging heat generating component heat flow distribution, because of the air gap 22 transmission heat few, highly heat-conductive material layer 90 can rapidly by The heat that charging heat generating component produces dispels the heat outside the top 201 of wireless charging device shell, thus greatly reduces the flow direction The heat flow of the bottom 203 of the shell that primary coil 40 closes on, reduces temperature and the temperature rise speed of outer surface, and this structure is not Only change heat flow distribution, also improve radiating effect.
As in figure 2 it is shown, preferred second embodiment of wireless charging device of the present invention, outside this wireless charging device 200 includes Shell 20a, the charging heat generating component being arranged in shell 20a, its housing 20a has the bottom 203a and relatively of close skin Top 201a, the sidepiece 202a for shell 20a being connected between top 201a and bottom 203a, charging heat generating component close on Bottom 203a is arranged.Concrete, shell also includes that internal layer 204a, charging heat generating component are supported on bottom internal layer 204a, thus Make to charge between heat generating component and the bottom 203a of shell and also there is the air gap 22a, or it may be said that the sidepiece of shell 20a It is double Shell with substructure, the air gap is set between double Shell.Because the thermal conductivity of air is extremely low, the air gap is set 22a can greatly reduce the heat produced on charging heat generating component and be delivered to the bottom 203a of shell.Further, can be by The material structure of the bottom 203a of shell is plastics or the relatively low material of other thermal conductivity, such as PC material (Merlon), ABS Resin etc., the most just can reduce the heat of the bottom 203a being transmitted to shell further, it addition, the material bottom internal layer 204a Matter can also be configured to plastics or the relatively low material of other thermal conductivity, and the heat that charging heat generating component produces can less lead to Cross internal layer 204a to conduct.So, just heat can be reduced to outward by the way of increasing the thermal resistance of charging heat generating component bottom The transmission of 203a bottom shell.
In the present embodiment further, charging heat generating component top arrange thermal conductive material layer 90a, thermal conductive material layer 90a with The top 201a of shell directly contacts, and so, the heat that charging heat generating component produces is outside thermal conductive material layer 90a is directly conducted to The top 201a of shell arrives surrounding.Preferably, thermal conductive material layer 90a is configured with the material of high heat conductance, as aluminum closes Gold copper-base alloy, copper sheet etc..The material structure of the top 201a of shell is metal or the high material of other thermal conductivity, such as aluminium alloy 6061.So, just heat can be increased to cover top portion 201a by the way of reducing the thermal resistance on charging heat generating component top Transmission.
Concrete, in the present embodiment, charging heat generating component includes printed circuit board (PCB) (PCB) assembly being arranged on bottom internal layer 60a, primary coil 40a, wherein printed circuit board (PCB) (PCB) assembly 60a and primary coil 40a is arranged side by side, and primary coil 40a is i.e. It it is the charging transmitting coil being charged to the medical treatment device implanted.Primary coil 40a closes on the bottom 203a of shell and sets Putting, so, when wireless charging device charges to implantable medical device when, wireless charging device is placed directly against on human body skin Or on unlined garment, the position of primary coil 40a distance implantable medical device is relatively near, thus improves charge efficiency.
Further, the back side of primary coil 40a, the side of outer casing bottom 203a arranges magnetic masking layer the most dorsad 50a, the effect arranging magnetic masking layer 50a is identical with first embodiment, repeats no more here.Printed circuit board (PCB) (PCB) assembly 60a Including printed circuit board (PCB) (PCB) 601a, for the support member of supporting printing board 601a and be arranged at printed circuit board (PCB) High heater members 602a, thermal conductive material layer 90a be arranged on magnetic masking layer 50a and printed circuit board (PCB) (PCB) assembly 60a, The heat major part that primary coil 40a produces passes to thermal conductive material layer 90a through magnetic masking layer 50a, on thermal conductive material layer 90a Heat flow spreads rapidly along horizontal direction, conducts to cover top portion 201a arrival surrounding simultaneously.In like manner, PCB is upper occurred frequently The heat major part that thermal device 602a produces, via thermal conductive material layer 90a and cover top portion 201a, eventually arrives in surrounding.
In preferred second embodiment of wireless charging device of the present invention, by reasonable disposition wireless charging device internal junction Structure, is provided with air gap layer, wireless charging device top 201a at wireless charging device side wall of outer shell 202a and bottom 203a Arrange and be provided with highly heat-conductive material layer on the enclosing cover in high heat conduction, and charging heat generating component, so change charging heat generating component Heat flow is distributed, because the heat of air gap layer transmission is few, and the heat that charging heat generating component can be produced rapidly by thermal conductive material layer Dispel the heat to the top 201a of wireless charging device shell 20a, thus greatly reduce and flow to primary coil 40a place side bottom The heat flow of 203a, reduces temperature and the temperature rise speed on 203a surface, bottom, and this structure changes heat flow distribution not to the utmost, Also improve radiating effect.
It is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises one Individual independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should will say Bright book is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can With other embodiments understood.
The a series of detailed description of those listed above is only for the feasibility embodiment of the present invention specifically Bright, they also are not used to limit the scope of the invention, all equivalent implementations made without departing from skill of the present invention spirit Or change should be included within the scope of the present invention.

Claims (10)

1. a wireless charging device, including shell, is arranged at shell interior for filling to the medical treatment device charging implanted Electricity heat generating component, it is characterised in that: described shell has the bottom of close skin and relative top, described charging heating group Part closes on described bottom and arranges, and arranges the air gap between described charging heat generating component and described bottom.
Wireless charging device the most according to claim 1, it is characterised in that described cover top portion and bottom are by different materials Material is constituted, and the thermal conductivity of the material constituting top is more than the thermal conductivity of the material bottom constituting.
Wireless charging device the most according to claim 1, it is characterised in that described wireless charging device also includes being arranged at Support in shell, described charging heat generating component supports on the bracket, and the air gap is arranged at described support and the described end Between portion.
Wireless charging device the most according to claim 1, it is characterised in that described shell also includes and described bottom interval The inner shell arranged, described the air gap is arranged between described bottom and inner shell.
Wireless charging device the most according to claim 4, it is characterised in that described charging heat generating component is supported in described interior On shell.
Wireless charging device the most according to claim 1, it is characterised in that described charging heat generating component includes for charging Primary coil that energy is launched and PCB assembly spaced with primary coil and battery.
Wireless charging device the most according to claim 6, it is characterised in that the one of the most described bottom of described primary coil Side arranges magnetic masking layer.
Wireless charging device the most according to claim 1, it is characterised in that the bottom of described shell is made up of plastics, institute The top stating shell is made up of metal.
Wireless charging device the most according to claim 1, it is characterised in that described charging heat generating component and described top it Between thermal conductive material layer is set.
Wireless charging device the most according to claim 9, it is characterised in that described thermal conductive material layer is configured to graphite flake Layer, copper sheet layer or the aluminium alloy material bed of material.
CN201610809260.2A 2016-09-08 2016-09-08 Wireless charging device Pending CN106160126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610809260.2A CN106160126A (en) 2016-09-08 2016-09-08 Wireless charging device

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Application Number Priority Date Filing Date Title
CN201610809260.2A CN106160126A (en) 2016-09-08 2016-09-08 Wireless charging device

Publications (1)

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CN106160126A true CN106160126A (en) 2016-11-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111585313A (en) * 2019-02-18 2020-08-25 Oppo广东移动通信有限公司 Wireless charging equipment
WO2022070156A1 (en) * 2020-10-01 2022-04-07 Cochlear Limited Heat management of prostheses
CN115410796A (en) * 2021-08-05 2022-11-29 北京品驰医疗设备有限公司 Wireless heat abstractor and charging assembly that charges

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Publication number Priority date Publication date Assignee Title
US20110234155A1 (en) * 2010-03-26 2011-09-29 Boston Scientific Neuromodulation Corporation Inductive Charger with Magnetic Shielding
CN105305645A (en) * 2014-07-08 2016-02-03 三星电机株式会社 Composite plate for wireless charging and manufacturing method thereof
CN105916363A (en) * 2016-07-01 2016-08-31 苏州景昱医疗器械有限公司 Wireless charging device
CN206099415U (en) * 2016-09-08 2017-04-12 苏州景昱医疗器械有限公司 Wireless charging device

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Publication number Priority date Publication date Assignee Title
US20110234155A1 (en) * 2010-03-26 2011-09-29 Boston Scientific Neuromodulation Corporation Inductive Charger with Magnetic Shielding
CN105305645A (en) * 2014-07-08 2016-02-03 三星电机株式会社 Composite plate for wireless charging and manufacturing method thereof
CN105916363A (en) * 2016-07-01 2016-08-31 苏州景昱医疗器械有限公司 Wireless charging device
CN206099415U (en) * 2016-09-08 2017-04-12 苏州景昱医疗器械有限公司 Wireless charging device

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李江涛等: "经颅磁次级技术的研究进展", 《高电压技术》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111585313A (en) * 2019-02-18 2020-08-25 Oppo广东移动通信有限公司 Wireless charging equipment
WO2022070156A1 (en) * 2020-10-01 2022-04-07 Cochlear Limited Heat management of prostheses
CN115410796A (en) * 2021-08-05 2022-11-29 北京品驰医疗设备有限公司 Wireless heat abstractor and charging assembly that charges
CN115410796B (en) * 2021-08-05 2023-08-04 北京品驰医疗设备有限公司 Wireless heat abstractor and subassembly that charges

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Application publication date: 20161123

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