CN107624027B - Vehicle-mounted LED electronic display cooling system - Google Patents
Vehicle-mounted LED electronic display cooling system Download PDFInfo
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- CN107624027B CN107624027B CN201710963101.2A CN201710963101A CN107624027B CN 107624027 B CN107624027 B CN 107624027B CN 201710963101 A CN201710963101 A CN 201710963101A CN 107624027 B CN107624027 B CN 107624027B
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- 238000001816 cooling Methods 0.000 title claims abstract description 33
- 238000005192 partition Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention discloses a vehicle-mounted LED electronic display cooling system, which comprises: the cooling system is composed of the device and the vehicle-mounted LED electronic display, the heat dissipation effect of the display is enhanced on the premise that the display effect of the LED electronic display is not affected, the service life of the display is prolonged, and the safety of the display in the vehicle-mounted use process is enhanced.
Description
Technical Field
The invention relates to the technical field of electronic displays, in particular to a cooling system of a vehicle-mounted LED electronic display.
Background
An LED electronic display is a display screen which is used for displaying various information such as characters, figures, images, animation, quotation, videos, video signals and the like by controlling the display mode of a semiconductor light-emitting diode. The technological progress of LEDs is the greatest driving force to expand market demand and applications. Originally, LED is only used as a micro indicator light, and is applied to high-grade equipment such as computers, audio and video recorders, and with the continuous progress of large-scale integrated circuits and computer technologies, LED displays are growing up rapidly, and gradually expanding to the fields of stock tickers, digital cameras, PDAs, mobile phones, and the like. The LED display integrates the micro-electronic technology, the computer technology and the information processing, becomes a new generation of display media with most advantages due to the advantages of bright color, wide dynamic range, high brightness, long service life, stable and reliable work and the like, is widely applied to large squares, commercial advertisements, stadiums, information dissemination, news distribution, stock exchange and the like, and can meet the requirements of different environments.
However, because the LED semiconductor generates a large amount of heat during operation, if the LED semiconductor cannot be evacuated in time or is improperly evacuated, the display effect of the LED electronic display will be directly affected, and serious people will directly damage the display and other devices.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides a vehicle-mounted LED electronic display cooling system which can enhance the heat dissipation effect of a display, prolong the service life of the display and enhance the safety of the display in the vehicle-mounted use process on the premise of not influencing the display effect of the LED electronic display.
In order to realize the aim of the invention, the technical measures are as follows:
vehicle-mounted LED electronic display cooling system, including transparent plate, heat-conducting plate, closed circulation air flow passageway, air current negative pressure accelerator, shell spare etc.:
a transparent plate: the shell piece is fixed in front of the display end of the electronic display;
a heat conducting plate: the shell is fixed at the back of the electronic display;
closed circulation gas flow channel: the side walls of two sides of the cavity A and the cavity B are respectively sealed by shell pieces, the cavity A and the cavity B are formed by the shell pieces and communicated up and down, a closed circulating airflow channel is formed by the cavity A, the cavity B and the shell pieces, and the upper part of the closed circulating airflow channel forms a fixed base for fixing the vehicle-mounted LED electronic display on a vehicle;
airflow negative pressure accelerator: the closed circulating airflow channel is arranged in the closed circulating airflow channel and used for accelerating airflow in the closed circulating airflow channel;
the shell part is as follows: the LED heat-conducting plate is used for fixing the LED electronic display, the transparent plate and the heat-conducting plate on the vehicle and simultaneously forming a closed circulating airflow channel.
The invention relates to a cooling system of a vehicle-mounted LED electronic display, wherein an airflow negative pressure accelerator arranged in a closed circulating airflow channel accelerates airflow on the upper part of the closed circulating airflow channel along a transparent plate to the direction of a heat guide plate.
The invention relates to a vehicle-mounted LED electronic display cooling system, wherein a plurality of airflow negative pressure accelerators are arranged in an intercommunicating cavity at the upper parts of a cavity A and a cavity B, and the airflow negative pressure accelerators are arranged in the intercommunicating cavity in a straight line along a display.
The invention relates to a cooling system of a vehicle-mounted LED electronic display, wherein 1 airflow negative pressure accelerator is arranged in a closed cavity which is communicated with a cavity A and a cavity B and is arranged above the rear part of a heat conducting plate on the upper part of a closed circulating airflow channel.
The invention relates to a cooling system of a vehicle-mounted LED electronic display, wherein airflow flows to an airflow negative pressure accelerator from the top of a cavity A horizontally after being accelerated by the airflow negative pressure accelerator, and flows to the top of a cavity B in a radial manner after passing through the airflow negative pressure accelerator.
The invention relates to a cooling system of a vehicle-mounted LED electronic display, wherein an airflow negative pressure accelerator forms an isosceles triangle at the upper part of a closed circulating airflow channel and two end points at the top of a heat conducting plate.
The cooling system of the vehicle-mounted LED electronic display is characterized in that the side section of the closed circulating airflow channel is of an inverted shoe type.
The invention relates to a cooling system of a vehicle-mounted LED electronic display, wherein a boot-type closed circulating airflow channel comprises: first boot cavity, second boot cavity, third boot cavity:
a first boot chamber: an air outlet of the airflow negative pressure accelerator;
a second boot chamber: the second boot cavity is divided into an upper cavity and a lower cavity and comprises a second boot cavity upper cavity and a second boot cavity lower cavity, and the airflow negative pressure accelerator is arranged on the second boot cavity upper cavity;
a third boot chamber: the heat conducting plate is composed of a cavity A formed between the transparent plate and the electronic display and a cavity B formed between the electronic display and the heat conducting plate.
According to the cooling system of the vehicle-mounted LED electronic display, a partition plate is arranged between the upper cavity of the second boot cavity and the lower cavity of the second boot cavity in the second boot cavity.
The invention relates to a cooling system of a vehicle-mounted LED electronic display, wherein a partition plate arranged between an upper cavity of a second boot cavity and a lower cavity of the second boot cavity is a fan-shaped partition plate, and fan-shaped protruding spokes are arranged on the upper surface and the lower surface of the partition plate.
The invention at least comprises the following beneficial effects:
the invention relates to a vehicle-mounted LED electronic display cooling system, which is characterized in that a transparent plate and a heat conducting plate are respectively arranged in front of and behind an LED electronic display to form airflow cavities, namely an A cavity and a B cavity, the side walls of the two sides of the A cavity and the B cavity are respectively sealed by shell parts, the A cavity and the B cavity are formed by the shell parts and are communicated up and down, and a closed circulating airflow channel is formed by the A cavity, the B cavity and the shell parts, so that air in a closed loop continuously flows in the up-and-down direction circulation rule from the front surface of a display to the back surface of the display in the operation process of the LED electronic display, airflow continuously flows in the A cavity and the B cavity, the heat is transmitted to the heat conducting plate in the process, and the heat conducting plate after heat is absorbed. In order to accelerate the flow of the air flow, the LED electronic display further comprises an air flow negative pressure accelerator, in order to uniformly cool the surface of the LED electronic display, a partition plate between an upper cavity of the second boot cavity and a lower cavity of the second boot cavity is a fan-shaped partition plate, and fan-shaped protruding spokes are arranged on the upper surface and the lower surface of the partition plate.
According to the cooling system for the vehicle-mounted LED electronic display, disclosed by the invention, the closed circulating airflow channel is utilized, so that the heat of the display in the working process can be timely LED out, the display can be prevented from being directly contacted with the external environment, the display belongs to a sensitive device, any trace or small amount of dust, H2O and other pollutants can influence the display, the influence of the external environment, air, dust and the like on the display is directly isolated by utilizing the closed circulating airflow channel, and the service life of the display is prolonged.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The drawings are included to further explain the present invention and are not intended to limit the scope of the invention.
FIG. 1 is a schematic diagram of the front and rear structures of an LED electronic display in a cooling system of a vehicle-mounted LED electronic display according to the present invention.
FIG. 2 is a schematic side sectional view A of the cooling system of the I-shaped vehicle-mounted LED electronic display according to the present invention.
Fig. 3 is a schematic view of the circulation flow direction of the gas flow in the closed circulation gas flow channel.
FIG. 4 is a schematic side sectional view B of the cooling system of the I-shaped vehicle-mounted LED electronic display according to the present invention.
FIG. 5 is a schematic diagram of a forward cross-sectional structure of a cooling system of an I-shaped vehicle-mounted LED electronic display according to the present invention.
Fig. 6 is a schematic side sectional view a of the boot-type vehicle-mounted LED electronic display cooling system according to the present invention.
Fig. 7 is a schematic side sectional view B of the boot-type vehicle-mounted LED electronic display cooling system according to the present invention.
FIG. 8 is a schematic top view cross-sectional view of the cooling system of the boot-type vehicle-mounted LED electronic display with airflow negative pressure accelerator according to the present invention
Detailed Description
The present invention is further described in detail below with reference to specific embodiments so that those skilled in the art can implement the invention without limiting the scope of the invention by referring to the description text.
The term "fixed" as used herein may mean "directly" coupled, or "indirectly" coupled, or no coupling between the two is achieved solely by other elements. The closed circulating airflow channel is a channel which does not exchange air with the outside, the channel is a sealed channel, and the airflow in the channel is in a regular circulating flow state.
Example 1
I-shaped LED electronic display cooling system
As shown in fig. 1, the transparent plate 1, the electronic display 2 and the heat conducting plate 3 are sequentially arranged in a front-back order, as shown in fig. 2, the transparent plate 1 and the display 2 form an a cavity 8, a B cavity 6 is formed between the display 2 and the heat conducting plate 3, an air channel 5 and an air flow channel 7 are respectively arranged above and below the a cavity 8 and the B cavity 6, the side walls of the a cavity 8 and the B cavity 6 are sealed by a shell part 4, and the air channel 5 and the air flow channel 7 are respectively used for air flow between the a cavity 8 and the cavity 6. The air channel 5, the air flow channel 7, the cavity A8, the cavity B6 and the shell member 4 form a closed type circulating air flow channel cavity, when the LED electronic display works, air flow in the cavity A8 vertically upwards enters the air flow channel 5 through the air flow channel 7, then enters the air flow channel 7 through the cavity B6 through the air flow channel 5, and the circulating flow direction of the air flow in the closed type circulating air flow channel is shown in figure 3. LED electronic display is under operating condition, and the display gives off the heat to A chamber 8, and the air current in A chamber 8 absorbs the heat and flows upwards perpendicularly, down flows into B chamber 6 perpendicularly through airflow channel 5, and heat-conducting plate 3 inboard contacts with the high temperature air current, absorbs the heat of air current after radiating into external environment through the heat-conducting plate 3 outside. In order to increase the flow speed of the air flow in the closed type circulation air flow channel, that is, the speed of the heat exchange between the display 2 and the external environment, as shown in fig. 4, an air flow negative pressure accelerator 9 may be further disposed in the closed type circulation air flow channel, the acceleration direction of the air flow negative pressure accelerator 9 is accelerated from the cavity a 8 to the cavity B6, and the flow of the air flow which cools the cavity a 8 and has taken up the heat of the display to the cavity B6 is increased. As shown in fig. 5, a plurality of airflow negative pressure accelerators 9 are arranged in the communicating cavity, i.e. the airflow channel 5, at the upper part of the cavity a 8 and the cavity B6, and the airflow negative pressure accelerators 9 are arranged in line along the display in the communicating cavity.
Example 2
Inverted shoe type LED electronic display cooling system
As shown in fig. 6, the transparent plate 1, the electronic display 2, and the heat conducting plate 3 are sequentially disposed in a front-back order, wherein the transparent plate 1 and the display 2 form an a-cavity 8, a B-cavity 6 is formed between the display 2 and the heat conducting plate 3, the a-cavity 8 and the B-cavity 6 are respectively provided with an air channel 5 and an air channel 7, the air channel 7 extends toward the rear of the heat conducting plate 3, as shown in fig. 6, an air negative pressure accelerator 9 is disposed in the air channel 5, the air negative pressure accelerator 9 and two end points at the bottom of the heat conducting plate 3 form an isosceles triangle, and the housing part 4 forming the air channel 7 forms an isosceles trapezoid. The side walls of the A cavity 8 and the B cavity 6 are sealed by the shell part 4, and the gas channel 5 and the gas flow channel 7 are respectively used for gas flow between the A cavity 8 and the B cavity 6. The air channel 5, the air flow channel 7, the cavity A8, the cavity B6 and the shell piece 4 form a closed type circulating air flow channel cavity, when the LED electronic display works, air flow in the cavity A8 vertically flows upwards from the air flow channel 7, then enters the air flow channel 5, flows to the air flow negative pressure accelerator 9 along the upper part of the inner wall of the side air flow channel 5, is accelerated by the air flow negative pressure accelerator 9, then flows into the air flow channel 5 in the reverse direction, then enters the cavity B6 from the air flow channel 5, vertically flows downwards in the cavity B6, flows into the air flow channel 7, and the circulating flow direction of the air flow in the closed type circulating air flow channel is shown in figure 3. LED electronic display is under operating condition, and the display gives off the heat to A chamber 8, and the air current in A chamber 8 absorbs the heat and flows upwards perpendicularly, down flows into B chamber 6 perpendicularly through airflow channel 5, and heat-conducting plate 3 inboard contacts with the high temperature air current, absorbs the heat of air current after radiating into external environment through the heat-conducting plate 3 outside. The airflow negative pressure accelerator 9 accelerates the flow speed of the airflow in the closed circulating airflow channel, that is, the heat exchange speed between the display 2 and the external environment, as shown in fig. 7, the airflow accelerated by the airflow negative pressure accelerator 9 in the airflow channel 7 on the rear side of the heat conducting plate 3 flows radially toward the transparent plate 1.
Further, in order to uniformly cool the display, as shown in fig. 7, the boot-type closed circulation airflow channel is divided into a first boot cavity, a second boot cavity and a third boot cavity, the first boot cavity 01 is an air outlet of the airflow negative pressure accelerator, the second boot cavity is divided into an upper cavity and a lower cavity, and comprises a second boot cavity upper cavity 021 and a second boot cavity lower cavity 022, the airflow negative pressure accelerator 9 is arranged in the second boot cavity upper cavity 021, and the third boot cavity is composed of a cavity a formed between the transparent plate and the electronic display and a cavity B formed between the electronic display and the heat-conducting plate. Wherein a partition plate 03 is arranged between a second boot cavity upper cavity 021 and a second boot cavity lower cavity 022 in the second boot cavity, the partition plate 03 between the second boot cavity upper cavity 021 and the second boot cavity lower cavity 022 is a fan-shaped partition plate, and fan-shaped protruding spokes are arranged on the upper surface and the lower surface.
It is obvious that those skilled in the art can obtain various effects not directly mentioned according to the respective embodiments without trouble from various structures according to the embodiments of the present invention.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (6)
1. An on-vehicle LED electronic display cooling system, comprising: transparent plate, heat-conducting plate, closed circulation air current passageway, air current negative pressure accelerator, shell spare:
a transparent plate: the shell piece is fixed in front of the display end of the electronic display;
a heat conducting plate: the shell is fixed at the back of the electronic display;
closed circulation gas flow channel: the side walls of two sides of the cavity A and the cavity B are respectively sealed by shell pieces, the cavity A and the cavity B are formed by the shell pieces and communicated up and down, a closed circulating airflow channel is formed by the cavity A, the cavity B and the shell pieces, and the upper part of the closed circulating airflow channel forms a fixed base for fixing the vehicle-mounted LED electronic display on a vehicle;
the side section of the closed type circulating airflow channel is in a reversed shoe shape;
the closed circulation airflow channel of the inverted boot type comprises: first boot cavity, second boot cavity, third boot cavity:
a first boot chamber: an air outlet of the airflow negative pressure accelerator;
a second boot chamber: the second boot cavity is divided into an upper cavity and a lower cavity and comprises a second boot cavity upper cavity and a second boot cavity lower cavity, and the airflow negative pressure accelerator is arranged on the second boot cavity upper cavity;
a third boot chamber: the heat conducting plate is composed of a cavity A formed between the transparent plate and the electronic display and a cavity B formed between the electronic display and the heat conducting plate;
a partition plate is arranged between a second boot cavity upper cavity and a second boot cavity lower cavity in the second boot cavity; the partition plate arranged between the upper cavity of the second boot cavity and the lower cavity of the second boot cavity is a fan-shaped partition plate, and fan-shaped protruding spokes are arranged on the upper surface and the lower surface of the partition plate;
airflow negative pressure accelerator: the closed circulating airflow channel is arranged in the closed circulating airflow channel and used for accelerating airflow in the closed circulating airflow channel;
the shell part is as follows: the LED heat-conducting plate is used for fixing the LED electronic display, the transparent plate and the heat-conducting plate on the vehicle and simultaneously forming a closed circulating airflow channel.
2. The cooling system for the vehicle-mounted LED electronic display according to claim 1, wherein the airflow negative pressure accelerator arranged in the closed circulating airflow channel accelerates the airflow on the upper part of the closed circulating airflow channel along the transparent plate to the direction of the heat guide plate.
3. The cooling system for the vehicle-mounted LED electronic display according to claim 2, wherein a plurality of airflow negative pressure accelerators are arranged in the communicating cavity at the upper parts of the cavity A and the cavity B, and the airflow negative pressure accelerators are arranged in the communicating cavity in a line along the display.
4. The cooling system for the vehicle-mounted LED electronic display according to claim 1, wherein 1 airflow negative pressure accelerator is arranged in a closed cavity which is communicated with the cavity A and the cavity B and is arranged above and behind the heat conducting plate on the upper part of the closed circulating airflow channel.
5. The cooling system for the vehicle-mounted LED electronic display according to claim 4, wherein after being accelerated by the airflow negative pressure accelerator, the airflow flows from the top of the cavity A to the airflow negative pressure accelerator horizontally and flows to the top of the cavity B in a radial manner after passing through the airflow negative pressure accelerator.
6. The vehicle-mounted LED electronic display cooling system of claim 5, wherein the airflow negative pressure accelerator forms an isosceles triangle with two end points at the top of the heat conducting plate at the upper part of the closed circulating airflow channel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710963101.2A CN107624027B (en) | 2017-10-16 | 2017-10-16 | Vehicle-mounted LED electronic display cooling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710963101.2A CN107624027B (en) | 2017-10-16 | 2017-10-16 | Vehicle-mounted LED electronic display cooling system |
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| CN107624027A CN107624027A (en) | 2018-01-23 |
| CN107624027B true CN107624027B (en) | 2020-06-23 |
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| CN201710963101.2A Active CN107624027B (en) | 2017-10-16 | 2017-10-16 | Vehicle-mounted LED electronic display cooling system |
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| CN111862792B (en) * | 2020-07-21 | 2021-06-22 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
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| US6504713B1 (en) * | 1998-01-22 | 2003-01-07 | Iv Phoenix Group, Inc. | Ultra-rugged, high-performance computer system |
| CN101738766A (en) * | 2008-11-24 | 2010-06-16 | 深圳市新超亮特种显示设备有限公司 | Liquid crystal display panel with two-body circulating heat conduction and dissipation device |
| CN101960363A (en) * | 2008-03-25 | 2011-01-26 | 日本电气株式会社 | Liquid crystal display device |
| CN104602501A (en) * | 2015-02-02 | 2015-05-06 | 上海启钧电子有限公司 | Outdoor electronic equipment and control method of constant temperature working environment thereof |
| CN204350551U (en) * | 2015-02-02 | 2015-05-20 | 上海启钧电子有限公司 | Outdoor electronic equipment |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6493440B2 (en) * | 2001-04-23 | 2002-12-10 | Gilbarco Inc. | Thermal management for a thin environmentally-sealed LCD display enclosure |
| CN201035873Y (en) * | 2007-04-25 | 2008-03-12 | 深圳市丽晶光电科技有限公司 | LED display screen |
| CN102768427A (en) * | 2012-07-13 | 2012-11-07 | 广东富信电子科技有限公司 | Outdoor LCD (Liquid Crystal Display) device and temperature adjustment system thereof |
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2017
- 2017-10-16 CN CN201710963101.2A patent/CN107624027B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6504713B1 (en) * | 1998-01-22 | 2003-01-07 | Iv Phoenix Group, Inc. | Ultra-rugged, high-performance computer system |
| CN101960363A (en) * | 2008-03-25 | 2011-01-26 | 日本电气株式会社 | Liquid crystal display device |
| CN101738766A (en) * | 2008-11-24 | 2010-06-16 | 深圳市新超亮特种显示设备有限公司 | Liquid crystal display panel with two-body circulating heat conduction and dissipation device |
| CN104602501A (en) * | 2015-02-02 | 2015-05-06 | 上海启钧电子有限公司 | Outdoor electronic equipment and control method of constant temperature working environment thereof |
| CN204350551U (en) * | 2015-02-02 | 2015-05-20 | 上海启钧电子有限公司 | Outdoor electronic equipment |
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