CN110673370B - Heat radiation structure of high bright LCD screen - Google Patents
Heat radiation structure of high bright LCD screen Download PDFInfo
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- CN110673370B CN110673370B CN201910877193.1A CN201910877193A CN110673370B CN 110673370 B CN110673370 B CN 110673370B CN 201910877193 A CN201910877193 A CN 201910877193A CN 110673370 B CN110673370 B CN 110673370B
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- 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
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
- G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
Abstract
The invention relates to a heat dissipation structure of a high-brightness liquid crystal display, which comprises a clamping piece and is characterized in that a heat dissipation pore channel is arranged in the clamping piece; the heat dissipation pore passage is respectively provided with an air inlet and an air outlet; and a fan for blowing air to the inside of the heat dissipation pore passage is fixed in the air inlet. The invention has the effects of improving the heat dissipation performance of the liquid crystal screen and prolonging the service life of the liquid crystal screen.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a heat dissipation structure of a high-brightness liquid crystal display screen.
Background
The liquid crystal display screen is a liquid crystal display screen, and the liquid crystal display screen comprises liquid crystal glass, a backlight module and a clamping piece fixed on the edge of the liquid crystal display screen.
With the increase of application scenes of liquid crystal screens, the requirements on the liquid crystal screens are higher and higher, particularly when the liquid crystal screens are used outdoors, the requirements on the brightness of the liquid crystal screens are different from 1000nit to 10000nit, and the brightness of common liquid crystal screens is generally 200nit to 500nit, so that the high-brightness liquid crystal screens are produced.
The brightness of the liquid crystal screen is mainly determined by the backlight brightness and the transmittance of the liquid crystal glass, but the transmittance of the liquid crystal glass is basically a fixed and unchangeable data, so the most direct and effective method for improving the brightness of the liquid crystal screen is to improve the backlight brightness.
The backlight brightness is determined by the LED lamp strip, the light guide plate and the light guide film material, wherein the light guide plate and the light guide film material have little influence on the backlight under the condition of reasonable design, so the brightness needs to be greatly improved, and most importantly, the brightness of the LED lamp strip is also increased.
However, when the total power of the LED light bars is increased, the total heat productivity of the LED light bars is also increased, so that heat dissipation is one of the most important tasks in a high-brightness liquid crystal display.
The existing heat dissipation method is generally that a heat dissipation fin is fixedly arranged on a clamping piece of a liquid crystal display screen, and the heat dissipation fin is positioned on one side of the clamping piece close to the back of the liquid crystal display screen; the LED lamp strip is also installed at the back of the liquid crystal display, the LED lamp strip comprises an LED lamp and a mounting strip used for installing the LED lamp, the mounting strip is attached to the radiating fins through heat-conducting adhesive tape, and heat emitted by the LED lamp strip is dissipated into the air through the radiating fins and is taken away by the air.
The above prior art solutions have the following drawbacks: in the long-term use process of the liquid crystal screen, no air flows at the radiating fins, so that heat accumulation is easy to generate, the internal temperature of the liquid crystal screen is easy to rise, an overheating phenomenon occurs, and the liquid crystal display screen is easy to damage, so that improvement is needed.
Disclosure of Invention
The invention aims to provide a heat dissipation structure of a high-brightness liquid crystal display, which has the effects of improving the heat dissipation performance of the liquid crystal display and prolonging the service life of the liquid crystal display.
The above object of the present invention is achieved by the following technical solutions:
a heat dissipation structure of a high-brightness liquid crystal display screen comprises a clamping piece, wherein a heat dissipation pore channel is arranged inside the clamping piece; the heat dissipation pore passage is respectively provided with an air inlet and an air outlet; and a fan for blowing air to the inside of the heat dissipation pore passage is fixed in the air inlet.
By adopting the technical scheme, the arrangement of the heat dissipation pore channel improves the heat dissipation area on one hand, so that the heat on the clamping piece can be better dissipated into the air, the heat dissipation effect can be better, and on the other hand, the clamping piece is matched with the use of a fan, so that the air in the heat dissipation pore channel can flow, the heat dissipated into the air in the heat dissipation pore channel by the clamping piece can be conveniently taken away, the accumulation of the heat is avoided, the heat dissipation effect is improved, the phenomenon of overheating of the liquid crystal screen is not easy to occur, and the service life of the liquid crystal screen is further prolonged; the air inlet and the air outlet are arranged to communicate the inside of the heat dissipation pore channel with the outside, so that the interaction of air flow is facilitated, and the work of a fan and the discharge of heat are facilitated.
The invention is further provided that the side wall inside the heat dissipation pore canal is respectively provided with a first communicating hole and a second communicating hole, and the first communicating hole and the second communicating hole communicate the inside of the heat dissipation pore canal with the space where the heat dissipation fin is located; the first communication hole is formed at one end, close to the air inlet, of the heat dissipation pore channel; the second communicating hole is positioned at one end of the heat dissipation pore channel close to the air outlet.
Through adopting above-mentioned technical scheme, the setting of first intercommunicating pore and second intercommunicating pore is got up the space that radiating fin place inside with the radiating pore for air in the radiating pore can enter into the space that radiating fin place, reaches the purpose of stirring the air in radiating fin place space, is convenient for take away the heat that radiating fin distributed out from second intercommunicating pore, has promoted radiating fin's radiating effect.
The invention is further provided with a first air deflector fixedly arranged in the first communication hole, one end of the first air deflector is fixedly connected with the hole wall of the first communication hole, the other end of the first air deflector extends towards the inside of the heat dissipation hole channel, and the first air deflector is used for guiding the air in the heat dissipation hole channel to the area where the heat dissipation fin is located; and a second air deflector is fixedly arranged in the second communication hole, one end of the second air deflector is fixedly connected with the hole wall of the second communication hole, the other end of the second air deflector extends towards the area where the radiating fin is located, and the second air deflector is used for guiding the wind in the area where the radiating fin is located into the radiating hole channel.
By adopting the technical scheme, the first air deflector is convenient for guiding the air in the heat dissipation pore channel to the space where the heat dissipation fins are located, so that the air in the space where the heat dissipation fins are located can be stirred, and the heat dissipation effect is improved; the second air deflector is arranged, so that air with heat in the space where the radiating fins are located can be conveniently guided to the radiating hole channel to be discharged, and heat accumulation is reduced.
The invention is further arranged in such a way that an air supply opening is arranged on the side wall of the heat dissipation pore channel, and one end of the air supply opening, which is far away from the heat dissipation pore channel, is communicated with the outside.
Through adopting above-mentioned technical scheme, the setting in air supply opening for the air in the heat dissipation pore can have new air to add at the flow in-process, is favorable to cooling to the air that flows in the heat dissipation pore, has further promoted the heat effect is taken away to the air in the heat dissipation pore way.
The invention is further provided with an induced draft fan fixedly arranged in the air supply opening, and the blowing direction of the induced draft fan is the same as the air flowing direction in the heat dissipation pore channel.
Through adopting above-mentioned technical scheme, the setting of draught fan provides new power for the flow of louvre way in the air, has accelerated the speed that the heat dissipation says that the air flows, has promoted radiating effect.
The invention is further provided that the air inlet, the air outlet and one end of the air supply opening close to the outside are all provided with grid plates, and the grid plate in the air inlet, the grid plate in the air outlet and the grid plate in the air supply opening are respectively connected with the air inlet, the air outlet and the air supply opening in a detachable way.
By adopting the technical scheme, the grid plate plays a certain role in separation, so that articles with large volume in the outside air are not easy to enter the air inlet, the air outlet and the air supplement port; the removable setting of grid plate makes things convenient for the dismantlement and the change of grid plate.
The invention is further provided that the surface of the grid plate close to one side of the heat dissipation pore passage is provided with dustproof cloth which is detachably connected with the grid plate.
By adopting the technical scheme, the arrangement of the dustproof cloth ensures that dust in the outside air is not easy to enter the heat dissipation pore channel, thereby being beneficial to keeping the inside of the heat dissipation pore channel clean; the dustproof cloth is detachable, and the dustproof cloth is conveniently taken down at regular intervals to be replaced.
The invention is further arranged that at least two corners are arranged on the heat dissipation pore channel, and the air inlet and the air outlet are both positioned at one corner of the heat dissipation pore channel.
Through adopting above-mentioned technical scheme, air intake and air outlet all are in a corner of heat dissipation pore for air intake or air outlet must have orientation and heat dissipation pore in say the flow direction of air the same, conveniently guide the air admission air intake or guide the air outflow heat dissipation pore, have promoted holistic cooling effect.
The invention is further arranged that the corners of the heat dissipation pore channel except the corner where the air inlet and the air outlet are positioned are all fixed with arc induced draft plates which are used for guiding the air in the heat dissipation pore channel to flow through the corners of the heat dissipation pore channel.
Through adopting above-mentioned technical scheme, the setting of arc induced air board has played the effect that the air that the guide heat dissipation pore was in flowed through heat dissipation pore corner for difficult quilt when the air flows through the corner is knocked back, is favorable to the circulation of the interior air of heat dissipation pore.
The invention is further arranged that the air inlet and the air outlet are both arranged below the liquid crystal screen.
Through adopting above-mentioned technical scheme, air intake and air outlet all are in the below of LCD screen for during article of external water droplet class are difficult for dripping into air intake and air outlet, promoted the security that the LCD screen used, also be difficult for forming piling up of dust in air intake and air outlet department moreover, promoted the cleanliness of air intake and air outlet department.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the arrangement of the heat dissipation pore channel improves the heat dissipation area on one hand, so that heat on the clamping piece can be better dissipated into the air, the heat dissipation effect is better, and on the other hand, the clamping piece is matched with the fan for use, so that the air in the heat dissipation pore channel can flow, the heat dissipated into the air in the heat dissipation pore channel by the clamping piece can be conveniently taken away, the heat is prevented from being accumulated in the heat dissipation pore channel, the heat dissipation effect is improved, the liquid crystal screen is not easy to generate an overheating phenomenon, and the service life of the liquid crystal screen is further prolonged;
2. the first communicating hole and the second communicating hole are arranged to communicate the inside of the radiating hole with the space where the radiating fin is located, so that air in the radiating hole can enter the space where the radiating fin is located, the purpose of stirring the air in the space where the radiating fin is located is achieved, heat emitted by the radiating fin can be taken away from the second communicating hole conveniently, and the radiating effect of the radiating fin is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the explosive structure of the present invention.
Fig. 3 is a schematic cross-sectional structure of the present invention.
Fig. 4 is a partially enlarged structural view of a portion a in fig. 3.
Fig. 5 is a partially enlarged structural view of a portion B in fig. 3.
Fig. 6 is a partially enlarged structural view of a portion C in fig. 3.
In the figure, 1, a clamping piece; 11. an air inlet; 12. an air outlet; 13. a first step groove; 14. a second stepped groove; 2. a liquid crystal screen; 3. a heat dissipating fin; 31. a circular hole; 32. a notch; 33. a first channel; 34. a second channel; 4. a heat dissipation pore channel; 41. a first corner; 42. a second corner; 43. a third corner; 44. a fourth corner; 45. a first communication hole; 451. a first air deflector; 46. a second communication hole; 461. a second air deflector; 5. manufacturing a fan; 6. a grid plate; 61. a dust cloth; 7. an arc induced draft plate; 8. an air supply opening; 9. an induced draft fan.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the heat dissipation structure of a high-brightness liquid crystal display disclosed by the invention comprises a clamping member 1, wherein the clamping member 1 is mainly made of aluminum, the clamping member 1 is in a square frame shape, the edge of the liquid crystal display 2 is fixed by the clamping member 1, a first stepped groove 13 is formed in the surface of one side of the clamping member 1, the edge of the surface of one side of the liquid crystal display 2 is adhered to the first stepped groove 13, and the liquid crystal display 2 is in a cuboid shape; the second stepped groove 14 has been seted up on the surface of joint spare 1 keeping away from 2 one sides of LCD screen, the welding has radiating fin 3 in the second stepped groove 14, radiating fin 3 is square frame shape and is made for aluminium system material, radiating fin 3 is the enclosure formula and fixes in second stepped groove 14, radiating fin 3 is provided with one at least, can be one, twice, three or four, be twice radiating fin 3 in this embodiment, the interval sets up between the adjacent twice radiating fin 3, the space of definition between the adjacent twice radiating fin 3 is first passageway 33 (refer to fig. 4), and be close to one radiating fin 3 of second stepped groove 14 lateral wall and be provided with the clearance between the second stepped groove 14 lateral wall, this clearance is named as second passageway 34 (refer to fig. 4).
Referring to fig. 2 and 4, the heat dissipation structure of the present invention further includes a heat dissipation pore 4, the heat dissipation pore 4 is opened inside the clip 1, the heat dissipation pore 4 has at least one corner, which may be one corner, two corners, three corners, four corners, five corners, six corners, seven corners or eight corners, in this embodiment, four corners, so that the heat dissipation pore 4 in this embodiment is integrally square, and the four corners are defined as a first corner 41, a second corner 42, a third corner 43 and a fourth corner 44 according to the flowing direction of the airflow; the outer side surface of the heat dissipation pore 4 at the first corner 41 is further provided with an air inlet 11 and an air outlet 12, the cross sections of the air inlet 11 and the air outlet 12 are rectangular, the air inlet 11 and the air outlet 12 are respectively communicated with the outside, the air flowing direction in the air inlet 11 is parallel to the air flowing direction in the air outlet 12, and the air inlet 11 and the air outlet 12 are both positioned below the liquid crystal display 2.
Referring to fig. 4, the heat dissipation structure of the present invention further includes a fan making device 5, the fan making device 5 is a micro fan, the fan making device 5 is fixed in the air inlet 11 through a screw and blows air into the heat dissipation pore passage 4, and a wire of the fan making device 5 penetrates through the side wall of the heat dissipation pore passage 4 and is electrically connected with the inside of the liquid crystal display 2 to achieve the purpose of power-on operation; in order to prevent other external objects from entering the air inlet 11 and the air outlet 12, grid plates 6 are arranged at the ends, close to the outside, of the air inlet 11 and the air outlet 12, the grid plates 6 are cuboid and made of hard plastics, and the grid plates 6 are fixed in the air inlet 11 and the air outlet 12 respectively in an interference fit mode; in order to reduce the amount of dust entering the air inlet 11 and the air outlet 12, a layer of dustproof cloth 61 is adhered to the surface of the grid plate 6 close to the side of the heat dissipation pore passage 4, and the dustproof cloth 61 is gauze.
Referring to fig. 3 and 4, when the liquid crystal display 2 starts to work, the fan 5 starts to work after being powered on, external air is sucked through the air inlet 11, and air is blown into the heat dissipation pore channel 4, so that air in the heat dissipation pore channel 4 forms air flow, the air flow flows along the heat dissipation pore channel 4, heat on the clamping piece 1 is taken away, and finally the air with heat is discharged from the air outlet 12.
Referring to fig. 3 and 4, in order to agitate the air in the area where the heat dissipation fin 3 is located and improve the heat dissipation effect of the heat dissipation fin 3, the side wall inside the heat dissipation pore 4 is further respectively provided with a first communication hole 45 and a second communication hole 46, the cross sections of the first communication hole 45 and the second communication hole 46 are both rectangular, the first communication hole 45 and the second communication hole 46 communicate the inside of the heat dissipation pore 4 with the second channel 34, the first communication hole 45 is located at one end of the heat dissipation pore 4 close to the air inlet 11, the second communication hole 46 is located at one end of the heat dissipation pore 4 close to the air outlet 12 and opposite to the air outlet 12, so that the airflow generated in the heat dissipation pore 4 can enter the area where the heat dissipation fin 3 is located from the first communication hole 45, then agitate the hot air in the area where the heat dissipation fin 3 is located, and then discharge the hot air in the area where the heat dissipation fin 3 is located from the second communication hole 46 into the heat dissipation pore 4, and finally discharged from the air outlet 12.
Referring to fig. 4, in order to facilitate the airflow in the heat dissipation duct 4 to enter the area where the heat dissipation fin 3 is located, a first air guiding plate 451 is fixedly disposed in the first connecting hole 45, the first air guiding plate 451 is rectangular and made of stainless steel, one end of the first air guiding plate 451 is welded to the hole wall of the first connecting hole 45 at the end away from the air inlet 11, the other end of the first air guiding plate 451 extends obliquely towards the inside of the heat dissipation duct 4, and the first air guiding plate 451 is used for guiding the airflow in the heat dissipation duct 4 to the area where the heat dissipation fin 3 is located; a second air deflector 461 is further fixedly arranged in the second communication hole 46, the second air deflector 461 is rectangular and made of stainless steel, one end of the second air deflector 461 is welded to the wall of the second communication hole 46 near one end of the air inlet 11, the other end of the second air deflector 461 extends in an arc shape in the area where the heat dissipation fin 3 is located, and the second air deflector 461 is used for guiding the air in the area where the heat dissipation fin 3 is located to the heat dissipation duct 4.
Referring to fig. 4, in order to connect the spaces where the heat dissipation fins 3 are located, circular holes 31 are formed in the heat dissipation fins 3 between the first channels 33 and the second channels 34 and in the heat dissipation fins 3 between two adjacent second channels, so that the areas where the two heat dissipation fins 3 are located can be influenced as much as possible after the airflow passes through the first connecting holes 45; in order to facilitate the introduction of the hot air in the first channel 33 into the heat dissipating duct 4, the second air guiding plate 461 passes through the heat dissipating fin 3 between the first channel 33 and the second channel 34, a gap 32 is formed on the heat dissipating fin 3 for the second air guiding plate 461 to pass through, the side wall of the gap 32 close to the air inlet 11 abuts against the second air guiding plate 461, and a gap is formed between the side wall of the gap 32 far from the air inlet 11 and the second air guiding plate 461, so that the first channel 33 is communicated with the second channel 34, and the hot air in the first channel 33 is conveniently introduced into the heat dissipating duct 4 along the second air guiding plate 461.
Referring to fig. 2 and 5, in order to make the air flow in the heat dissipating duct 4 more conveniently pass through the second corner 42, the third corner 43 and the fourth corner 44 of the heat dissipating duct 4, an arc-shaped air inducing plate 7 is integrally formed on each of the outer sides of the second corner 42, the third corner 43 and the fourth corner 44, so that the air flow in the heat dissipating duct 4 can smoothly rotate through the second corner 42, the third corner 43 and the fourth corner 44 along the arc-shaped air inducing plate 7 when passing through the second corner 42, the third corner 43 and the fourth corner 44.
Referring to fig. 2 and 5, an air supply opening 8 is further respectively formed in the outer side walls of the second corner 42, the third corner 43 and the fourth corner 44 of the heat dissipation duct 4, the air supply opening 8 is adjacent to the arc-shaped air deflector, one end of the air supply opening 8, which is far away from the heat dissipation duct 4, is communicated with the outside, and outside air flows in the direction of airflow in the heat dissipation duct 4 after entering the heat dissipation duct 4 from the air supply opening 8.
Referring to fig. 2 and 5, because the airflow in the heat dissipation duct 4 is provided with the power of the fan 5, the air flow rate in the heat dissipation duct 4 is generally greater than the air flow rate at the air supply opening 8, so that the air pressure difference between the outside and the second corner 42, the third corner 43 and the fourth corner 44 of the heat dissipation duct 4 is easily formed, and the outside air is more easily introduced into the heat dissipation duct 4 from the air supply opening 8.
Referring to fig. 5, since the outside air enters the heat dissipation pore 4 from the air supply opening 8, the air in the heat dissipation pore 4 is cooled more easily, more heat is taken away by the air in the heat dissipation pore 4 conveniently, and the heat dissipation effect is improved.
Referring to fig. 6, in order to provide more sufficient power for the air flowing in the heat dissipation duct 4, an induced draft fan 9 is fixedly arranged in the air supply opening 8 at the third corner 43 through a screw, the induced draft fan 9 is also a micro fan, the induced draft fan 9 is electrically connected with the inside of the liquid crystal display 2 through a wire, and the blowing direction of the induced draft fan 9 is the same as the air flowing direction in the heat dissipation duct 4.
Referring to fig. 2 and 6, in other embodiments, one induced draft fan 9 may be respectively installed in the air supplement opening 8 at the second corner 42 or in the air supplement opening 8 at the fourth corner 44, or one induced draft fan 9 may be respectively installed in the air supplement opening 8 at the second corner 42 and in the air supplement opening 8 at the fourth corner 44 together, so as to provide more sufficient power for the air in the heat dissipation duct 4, accelerate the flow speed of the air in the heat dissipation duct 4, and improve the heat dissipation effect.
Referring to fig. 4 and 5, in order to prevent external articles from entering the heat dissipation duct 4 from the air supply opening 8, a grid plate 6 is also disposed at an end of the air supply opening 8 close to the outside, the grid plate 6 and the air supply opening 8 are also fixed in an interference fit manner, and a dustproof cloth 61 is also adhered to a surface of the grid plate 6 close to the heat dissipation duct 4.
The implementation principle of the embodiment is as follows: when the liquid crystal display 2 works, the fan 5 is electrified to work, so that external air passes through the fan 5 from the air inlet 11 to form airflow in the heat dissipation duct 4 and flows along the heat dissipation duct 4, when the airflow flows to the first connecting hole 45, a part of the airflow guided by the first air deflector 451 passes through the first connecting hole 45 and enters the area where the heat dissipation fin 3 is located, so that the air in the area where the heat dissipation fin 3 is located is stirred, and after the air in the area where the heat dissipation fin 3 is located is stirred, the air is guided into the heat dissipation duct 4 from the second air deflector 461, and then is guided out of the outside from the air outlet 12; the airflow flowing along the heat dissipation pore passage 4 also flows to the air outlet 12 after being powered by the induced draft fan 9, and is discharged from the air outlet 12; because of the flow of gas, the heat generated by the liquid crystal screen 2 can be taken away by the airflow and is not easy to gather together, and the heat dissipation effect of the liquid crystal screen 2 is improved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A heat radiation structure of a high-brightness liquid crystal display screen comprises a clamping piece (1), and is characterized in that a heat radiation pore channel (4) is arranged inside the clamping piece (1); the liquid crystal display panel is characterized in that the clamping piece (1) is in a square frame shape, the edge of the liquid crystal display (2) is fixed by the clamping piece (1), a first step groove (13) is formed in the surface of one side of the clamping piece (1), and the edge of the surface of one side of the liquid crystal display (2) is adhered to the first step groove (13); a second stepped groove (14) is formed in the surface of one side, away from the liquid crystal screen (2), of the clamping piece (1), multiple radiating fins (3) are welded in the second stepped groove (14), the radiating fins (3) are square frames, the radiating fins (3) are fixed in the second stepped groove (14) in an enclosing wall mode, a space formed between every two adjacent radiating fins (3) is a first channel (33), and a gap formed between one radiating fin (3) close to the side wall of the second stepped groove (14) and the inner side wall of the second stepped groove (14) is a second channel (34); the heat dissipation pore channel (4) is arranged in the groove surface of the first step groove (13) between the inner side wall of the first step groove (13) and the inner side wall of the second step groove (14) in the clamping piece (1); an air inlet (11) and an air outlet (12) which are positioned on the outer periphery of the clamping piece (1) are respectively arranged on the heat dissipation pore channel (4); a fan (5) for blowing air to the inside of the heat dissipation pore passage (4) is fixed in the air inlet (11);
a first communicating hole (45) and a second communicating hole (46) are respectively formed in the side wall of the interior of the heat dissipation pore channel (4), and the interior of the heat dissipation pore channel (4) is communicated with the space where the heat dissipation fins (3) are located through the first communicating hole (45) and the second communicating hole (46); the first communication hole (45) is positioned at one end of the heat dissipation pore passage (4) close to the air inlet (11); the second communication hole (46) is positioned at one end of the heat dissipation pore channel (4) close to the air outlet (12);
a first air deflector (451) is fixedly arranged in the first communication hole (45), one end of the first air deflector (451) is fixedly connected with the hole wall of the first communication hole (45), the other end of the first air deflector (451) extends towards the inside of the heat dissipation pore channel (4), and the first air deflector (451) is used for guiding the wind in the heat dissipation pore channel (4) to the area where the heat dissipation fins (3) are located; a second air deflector (461) is further fixedly arranged in the second communication hole (46), one end of the second air deflector (461) is fixedly connected with the hole wall of the second communication hole (46), the other end of the second air deflector (461) extends to the area where the heat dissipation fin (3) is located, and the second air deflector (461) is used for guiding the wind in the area where the heat dissipation fin (3) is located to the heat dissipation hole (4);
when the liquid crystal display (2) works, the fan (5) is electrified to work, external air passes through the fan (5) from the air inlet (11) to form airflow in the heat dissipation duct (4), and flows along the heat dissipation duct (4), when the airflow flows to the first connecting hole (45), a part of the airflow is guided by the first air deflector (451) to pass through the first connecting hole (45) to enter the area where the heat dissipation fin (3) is located, so that the air in the area where the heat dissipation fin (3) is located is stirred, and after the air in the area where the heat dissipation fin (3) is located is stirred, the air is guided into the heat dissipation duct (4) from the second air deflector (461) and then is guided out of the outside from the air outlet (12).
2. The heat dissipation structure of the high-brightness liquid crystal display according to claim 1, wherein an air supply opening (8) is disposed on a side wall of the heat dissipation duct (4), and an end of the air supply opening (8) far away from the heat dissipation duct (4) is communicated with the outside.
3. The heat dissipation structure of the high-brightness liquid crystal display screen according to claim 2, wherein an induced draft fan (9) is fixedly arranged in the air supply opening (8), and the blowing direction of the induced draft fan (9) is the same as the air flowing direction in the heat dissipation pore passage (4).
4. The heat dissipation structure of the high-brightness LCD screen according to claim 2, wherein the air inlet (11), the air outlet (12) and the air supply opening (8) are provided with grid plates (6) at ends close to the outside, and the grid plates (6) in the air inlet (11), the grid plates (6) in the air outlet (12) and the grid plates (6) in the air supply opening (8) are detachably connected to the air inlet (11), the air outlet (12) and the air supply opening (8), respectively.
5. The heat dissipation structure of the high-brightness liquid crystal display according to claim 4, wherein a dustproof cloth (61) is disposed on a surface of one side of the grid plate (6) close to the heat dissipation pore (4), and the dustproof cloth (61) is detachably connected with the grid plate (6).
6. The heat dissipation structure of a high brightness lcd panel according to claim 1, wherein the heat dissipation duct (4) has at least two corners, and the air inlet (11) and the air outlet (12) are located at one corner of the heat dissipation duct (4).
7. The heat dissipation structure of the high-brightness liquid crystal display according to claim 6, wherein the corners of the heat dissipation duct (4) except the corners where the air inlet (11) and the air outlet (12) are located are fixed with arc-shaped air guide plates (7), and the arc-shaped air guide plates (7) are used for guiding air in the heat dissipation duct (4) to flow through the corners of the heat dissipation duct (4).
8. The heat dissipation structure of a high brightness lcd panel according to claim 7, wherein the air inlet (11) and the air outlet (12) are both located below the lcd panel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910877193.1A CN110673370B (en) | 2019-09-17 | 2019-09-17 | Heat radiation structure of high bright LCD screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910877193.1A CN110673370B (en) | 2019-09-17 | 2019-09-17 | Heat radiation structure of high bright LCD screen |
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| Publication Number | Publication Date |
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| CN110673370A CN110673370A (en) | 2020-01-10 |
| CN110673370B true CN110673370B (en) | 2022-04-29 |
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| CN201910877193.1A Active CN110673370B (en) | 2019-09-17 | 2019-09-17 | Heat radiation structure of high bright LCD screen |
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| CN110673370A (en) | 2020-01-10 |
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