WO2018079910A1 - Système d'alimentation du dispositif d'affichage d'informations d'extérieur - Google Patents

Système d'alimentation du dispositif d'affichage d'informations d'extérieur Download PDF

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Publication number
WO2018079910A1
WO2018079910A1 PCT/KR2016/013379 KR2016013379W WO2018079910A1 WO 2018079910 A1 WO2018079910 A1 WO 2018079910A1 KR 2016013379 W KR2016013379 W KR 2016013379W WO 2018079910 A1 WO2018079910 A1 WO 2018079910A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
thermoelectric module
heat sink
power supply
power
Prior art date
Application number
PCT/KR2016/013379
Other languages
English (en)
Korean (ko)
Inventor
김용태
김용석
Original Assignee
주식회사 현대아이티
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 현대아이티 filed Critical 주식회사 현대아이티
Publication of WO2018079910A1 publication Critical patent/WO2018079910A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002—Generators
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
    • H05K7/20972—Forced ventilation, e.g. on heat dissipaters coupled to components

Definitions

  • the present invention relates to a power supply system for an outdoor information display apparatus, and more particularly, to install a heat sink in contact with a heat generating surface of a thermoelectric element on an outside of a housing, and to cool the electromotive force generated by the thermoelectric element to radiate heat of the heat sink.
  • the present invention relates to a power supply system of an outdoor information display apparatus capable of efficiently cooling an inside of a device by using a fan as a power source for driving a fan and reducing power consumption.
  • An information display apparatus also called a smart board or electronic bulletin board, is a device that receives a command from a user through a touch interface and outputs information corresponding to the command. It is used for various purposes such as presentations.
  • a large display is applied to the information display apparatus, and is configured to allow a user to directly write on the display. Therefore, when giving a presentation in a lecture or a meeting using an information display device, the user stands on one side (eg, left and right) of the copyboard and explains the description at the convenience of explanation.
  • information display devices have many advantages such as variety of information provision and ease of use, their use is increasing in all industries, and they are popular for outdoor lectures, presentations, and streets. It is also used as a means for providing traffic information.
  • the outdoor environment is known to be very harsh compared to the indoor environment.
  • the temperature inside the display system exceeds 90 ° C. due to the direct sunlight caused by summer sunlight and the heat of the display itself.
  • a blackout phenomenon occurs in the display.
  • a blackout phenomenon occurs on the display, a fatal problem occurs because the screen is displayed in black so that a character or an image cannot be displayed and thus, the display cannot function as a display.
  • Such a blackout phenomenon is known to occur mainly due to an increase in display front temperature caused by direct sunlight.
  • a power system of an outdoor information display device is cooled according to a cooling method using a fan or a cooling method using an air conditioner.
  • the present invention is to solve the conventional problems, the present invention is to install a heat sink in contact with the heat generating surface of the thermoelectric element outside the housing and the power source for driving the cooling fan for radiating the heat generated by the thermoelectric element electromotive force generated by the thermoelectric element It is an object of the present invention to provide a power supply system for an outdoor information display apparatus that can efficiently cool the inside of a device and reduce power consumption.
  • an object of the present invention is to provide a power supply system of an outdoor information display device that can prevent the possibility of device failure due to the inflow of water, rain, foreign matters, such as dust.
  • a power system of an outdoor information display apparatus includes a display panel installed at a front portion of a housing, a heating surface of which is exposed to the outside through an opening formed at a rear portion of the housing, and is opposite to the heating surface.
  • a thermoelectric module installed in the housing so that the cooling surface faces the display panel, a heat sink installed outside the housing in contact with the heat generating surface of the thermoelectric module, a cooling fan coupled to the heat sink, and a power source to the thermoelectric module
  • a control unit for controlling supply wherein the thermoelectric module corresponds to a temperature difference between a cooling surface exposed to the internal air of the housing and a heat generating surface contacting the heat sink when the power is supplied under the control of the control unit. Current is generated and provided as a driving power source for driving the cooling fan.
  • thermoelectric module In the power system of the outdoor information display apparatus according to the present invention, heat transmitted to the heat sink installed on the outside of the housing through the heat generating surface of the thermoelectric module is radiated from the outside of the housing without being re-introduced into the inside of the housing. It is done.
  • the power system of the outdoor information display apparatus further includes a temperature sensor for detecting an internal temperature of the housing, and a switch provided between the thermoelectric module and the power supply unit, wherein the control unit is configured to include an interior of the housing received from the temperature sensor. When the temperature is less than the predetermined temperature threshold, the switch is turned off to control to cut off the power supply to the thermoelectric module.
  • the power supply system of the outdoor information display apparatus further includes a current sensor installed between the thermoelectric module and the power supply unit and detecting a current amount flowing into the thermoelectric module, and a switch provided between the thermoelectric module and the power supply unit.
  • the controller may control the power supply to the thermoelectric module to be cut off by turning off the switch when the amount of current received from the current sensor is greater than or equal to a preset current threshold.
  • the cooling fan is characterized in that the waterproof function.
  • the inside of the apparatus is efficiently cooled by installing a heat sink in contact with the heat generating surface of the thermoelectric element and using an electromotive force generated by the thermoelectric element as a power source for driving a cooling fan that radiates heat of the heat sink.
  • an outdoor information display apparatus capable of reducing power consumption is provided.
  • the outdoor information display device that can prevent the possibility of device failure due to the inflow of moisture, such as rainwater, foreign matters, such as dust.
  • FIG. 1 is a functional block diagram of a power system of an outdoor information display apparatus according to an embodiment of the present invention
  • FIG. 2 is a conceptual cross-sectional view of a power system of an outdoor information display apparatus according to an embodiment of the present invention
  • FIG. 3 is a diagram for describing a detailed operation of a power system of an outdoor information display apparatus according to an embodiment of the present disclosure.
  • FIG. 1 is a functional block diagram of a power system of an outdoor information display apparatus according to an embodiment of the present invention
  • Figure 2 is a conceptual cross-sectional view of the power system of the outdoor information display apparatus according to an embodiment of the present invention.
  • a power system of an outdoor information display apparatus includes a housing 5, a protective cover 10, a display panel 20, a thermoelectric module 30, and a heat sink ( 40, a cooling fan 50, a controller 60, a temperature sensor 70, a switch 80, a current sensor 90, and a power supply unit 100.
  • the housing 5 is a means for accommodating the components of the power system of the outdoor information display apparatus and configuring the appearance of the apparatus.
  • the housing 5 is represented as having a rectangular parallelepiped shape, but this is only one example, and the housing 5 may be configured to have various appearances as necessary.
  • the front part of the housing 5 is the housing 5 on the side where the display panel 20 is installed, that is, the side where the user is located, and the rear part of the housing 5 is the housing 5 on the opposite side. to be.
  • an opening for exposing a screen provided by the display panel 20 to a user is formed on the front portion of the housing 5 to have a shape corresponding to the shape of the display panel 20, and the housing 5
  • An opening for exposing the heating surface of the thermoelectric module 30 to the outside is formed at the rear portion of the back panel.
  • the protective cover 10 is installed in an opening formed in the front portion of the housing 5, and functions to protect components including the display panel 20 from external physical factors.
  • the protective cover 10 may be made of various materials having a transparent material, for example, glass may be applied as the protective cover 10.
  • the display panel 20 is embedded in the housing 5 in a protected state by the protective cover 10 and performs a function of visually providing information to the user under the control of the controller 60.
  • the screen provided by the display panel 20 is exposed to the user through an opening formed in the front portion of the housing 5.
  • thermoelectric module 30 is provided in the housing 5 so that the heat generating surface is exposed to the outside through an opening formed in the rear part of the housing 5, and the cooling surface opposite to the heat generating surface faces the display panel 20. .
  • thermoelectric module 30 When the thermoelectric module 30 is supplied with power under the control of the controller 60, a current corresponding to a temperature difference between the cooling surface exposed to the air inside the housing 5 and the heating surface contacting the heat sink 40 is provided. It generates and provides as a driving power for driving the cooling fan 50.
  • the heat sink 40 is installed outside the housing 5 in contact with the heat generating surface of the thermoelectric module 30.
  • thermoelectric module 30 Since the heat transferred to the heat sink 40 installed on the outside of the housing 5 through the heat generating surface of the thermoelectric module 30 is radiated outside the housing 5 without being re-introduced into the inside of the housing 5, the device Cooling efficiency is increased.
  • the cooling fan 50 is coupled to the heat sink 40, and rotates by a driving operation of a driving means such as a motor supplied with a current from the thermoelectric module 30, thereby radiating heat of the heat radiating fan to the outside. do.
  • a driving means such as a motor supplied with a current from the thermoelectric module 30, thereby radiating heat of the heat radiating fan to the outside.
  • the cooling fan 50 may be configured to have a waterproof and dustproof function.
  • the controller 60 performs a control operation for all components, including power supply control to the thermoelectric module 30.
  • the temperature sensor 70 detects the internal temperature of the housing 5 and transmits the temperature to the controller 60.
  • the switch 80 is installed between the thermoelectric module 30 and the power supply unit 100, and the on / off is determined under the control of the controller 60.
  • the current sensor 90 is installed between the thermoelectric module 30 and the power supply unit 100 to detect the amount of current flowing into the thermoelectric module 30 and transmit the current amount to the control unit 60.
  • the power supply unit 100 is a means for supplying power to components including the thermoelectric module 30 and the display panel 20.
  • the controller 60 turns off the switch 80 to cut off the power supply to the thermoelectric module 30. Can be controlled. According to such a structure, unnecessary power consumption at low temperature which does not need a cooling action can be reduced.
  • the controller 60 may control the power supply to the thermoelectric module 30 to be cut off by turning off the switch 80. According to this configuration, it is possible to prevent the overcurrent flows into the thermoelectric module 30 to damage the thermoelectric module 30.
  • FIG. 3 is a diagram for describing a detailed operation of a power system of an outdoor information display apparatus according to an embodiment of the present disclosure.
  • step S10 a process of receiving an operation start command of a device from a user is performed.
  • this process may be performed through a power button pressing operation and the like, and the command is transmitted to the controller 60.
  • step S20 a process of controlling the controller 60 to supply power to the thermoelectric module 30 is performed.
  • the cooling surface of the thermoelectric module 30 supplied with power becomes cold, and conversely, the heat generating surface, which is the opposite surface, becomes hot. Since the cooling surface is exposed to the internal space of the housing 5 in which the display panel 20 is installed, the internal space of the housing 5 and the display panel 20 begin to cool through the cooling surface and heat transfer, and the heat generating surface Since the silver is in contact with the heat sink 40 installed outside the housing 5, heat is discharged to the outside through the heat sink 40.
  • step S30 the thermoelectric module 30 generates a current corresponding to the temperature difference between the cooling surface and the heating surface.
  • step S40 the driving means for driving the cooling fan 50 is supplied with the electric power from the thermoelectric module 30 to operate the cooling fan 50.
  • step S50 the temperature sensor 70 detects the internal temperature of the housing 5 and transmits the temperature to the controller 60.
  • step S60 the controller 60 determines whether the internal temperature of the housing 5 received from the temperature sensor 70 is equal to or less than a preset temperature threshold. As a result of the determination in step S60, when the internal temperature of the housing 5 is equal to or less than the preset temperature threshold, the flow is switched to step S70, and if not, the flow is switched to step S80.
  • step S70 a process of controlling the power supply to the thermoelectric module 30 is cut off by turning off the switch 80 installed between the thermoelectric module 30 and the power supply unit 100. As a result, unnecessary power consumption at low temperatures without requiring the cooling action can be reduced.
  • step S80 the current sensor 90 installed between the thermoelectric module 30 and the power supply unit 100 detects the amount of current flowing into the thermoelectric module 30 and transmits the amount of current to the controller 60.
  • step S90 the controller 60 determines whether the amount of current received from the current sensor 90 is greater than or equal to a preset current threshold. As a result of the determination in step S90, when the amount of current is equal to or greater than the preset current threshold, the flow is switched to step S100, and if not, the flow is switched to step S110.
  • step S100 a process of controlling the power supply to the thermoelectric module 30 is blocked by turning off the switch 80 installed between the thermoelectric module 30 and the power supply unit 100. Accordingly, overcurrent may be introduced into the thermoelectric module 30 to prevent the thermoelectric module 30 from being damaged.
  • step S110 a process of receiving an operation termination command of the device from the user is performed.
  • this process may be performed by pressing an end button or the like, and this command is transmitted to the controller 60, and the controller 60 terminates the entire operation of the device according to the command.
  • thermoelectric element in contact with the heat generating surface of the thermoelectric element outside the housing and by using the electromotive force generated by the thermoelectric element as a power source for driving a cooling fan that radiates heat of the heat sink
  • An outdoor information display apparatus capable of cooling the inside of the apparatus efficiently and reducing power consumption is provided.
  • the outdoor information display device that can prevent the possibility of device failure due to the inflow of moisture, such as rainwater, foreign matters, such as dust.
  • the technique according to the present specification is available in an electronic device.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

La présente invention concerne un système d'alimentation d'un dispositif d'affichage d'informations d'extérieur, le système d'alimentation comprenant : un panneau d'affichage installé sur une partie de surface avant d'un boîtier ; un module thermoélectrique dont une surface de chauffage est exposée à l'extérieur à travers une ouverture formée dans une partie de surface arrière du boîtier, et une surface de refroidissement, la surface opposée de la surface de chauffage, qui est installée sur le boîtier de façon à faire face au panneau d'affichage ; un dissipateur thermique installé à l'extérieur du boîtier et en contact avec la surface de chauffage du module thermoélectrique ; un ventilateur de refroidissement couplé au dissipateur thermique ; et une unité de commande servant à commander l'alimentation électrique du module thermoélectrique, dans lequel, lorsqu'il est alimenté en énergie selon la commande de l'unité de commande, le module thermoélectrique génère un courant correspondant à une différence de température entre la surface de refroidissement exposée à l'air interne du boîtier et la surface de chauffage en contact avec le dissipateur thermique, et fournit le courant en tant qu'énergie d'entraînement pour entraîner le ventilateur de refroidissement. En conséquence, la présente invention installe, à l'extérieur du boîtier, le dissipateur thermique en contact avec la surface de chauffage d'un élément thermoélectrique, et utilise une force électromotrice générée par l'élément thermoélectrique en tant qu'énergie destinée à entraîner le ventilateur de refroidissement pour dissiper la chaleur du dissipateur thermique, ce qui permet de refroidir efficacement l'intérieur du dispositif et de réduire également la consommation d'énergie.
PCT/KR2016/013379 2016-10-28 2016-11-21 Système d'alimentation du dispositif d'affichage d'informations d'extérieur WO2018079910A1 (fr)

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Application Number Priority Date Filing Date Title
KR10-2016-0141783 2016-10-28
KR1020160141783A KR20180046542A (ko) 2016-10-28 2016-10-28 옥외용 정보 디스플레이 장치의 전원 시스템

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114512065A (zh) * 2021-12-28 2022-05-17 江苏聚泰科技有限公司 一种散热防尘的显示模组

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102507849B1 (ko) 2022-10-12 2023-03-08 참빛싸인 주식회사 디스플레이 유닛 별로 복수의 전원 공급 장치를 구비한 디스플레이 패널

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005136212A (ja) * 2003-10-30 2005-05-26 Toshiba Corp 熱交換装置
WO2006025688A1 (fr) * 2004-09-01 2006-03-09 Jong Kyu Lee Dispositif de refroidissement pour ordinateur utilisant un element thermoelectrique
KR20080005024A (ko) * 2006-07-07 2008-01-10 주식회사 지에스티 옥외용 디스플레이장치
KR20090090541A (ko) * 2008-02-21 2009-08-26 (주)뷰앤아이테크 옥외 광고용 디스플레이 장치
KR20160001312A (ko) * 2014-06-27 2016-01-06 주식회사 대창 열전 소자 모듈

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005136212A (ja) * 2003-10-30 2005-05-26 Toshiba Corp 熱交換装置
WO2006025688A1 (fr) * 2004-09-01 2006-03-09 Jong Kyu Lee Dispositif de refroidissement pour ordinateur utilisant un element thermoelectrique
KR20080005024A (ko) * 2006-07-07 2008-01-10 주식회사 지에스티 옥외용 디스플레이장치
KR20090090541A (ko) * 2008-02-21 2009-08-26 (주)뷰앤아이테크 옥외 광고용 디스플레이 장치
KR20160001312A (ko) * 2014-06-27 2016-01-06 주식회사 대창 열전 소자 모듈

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114512065A (zh) * 2021-12-28 2022-05-17 江苏聚泰科技有限公司 一种散热防尘的显示模组

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