CN108563066B - Heat dissipation device and display device - Google Patents
Heat dissipation device and display device Download PDFInfo
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- CN108563066B CN108563066B CN201810241411.8A CN201810241411A CN108563066B CN 108563066 B CN108563066 B CN 108563066B CN 201810241411 A CN201810241411 A CN 201810241411A CN 108563066 B CN108563066 B CN 108563066B
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- airflow
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
Abstract
The invention discloses a heat dissipation device and a display device. The heat dissipating double-fuselage includes: the backlight module comprises a backlight module and a heat dissipation assembly; the backlight module comprises a plurality of light sources, light source barriers and a backlight plate; the light source partition comprises an outer frame, at least one transverse plate and/or at least one vertical plate, and the transverse plate and/or the vertical plate define an area where the light source is located in the outer frame; the heat dissipation assembly comprises a plurality of vent holes, an airflow inlet pipe and an airflow system; the light source and the transverse plate and/or the vertical plate adjacent to the light source are/is a grid unit, each grid unit comprises at least two vent holes, the at least two vent holes are respectively arranged on the transverse plate and/or the vertical plate in the grid unit, and two ends of the airflow introducing pipe are respectively communicated with the light source barrier and the airflow system. The display device comprises the heat dissipation device and a display panel arranged opposite to the backlight module. The invention can achieve better heat dispersion, prolong the service life of the light source, prolong the service life of the whole display device and save the cost for users.
Description
Technical Field
The invention relates to the technical field of display, in particular to a heat dissipation device and a display device.
Background
Liquid crystal displays, which are flat, ultra-thin display devices, consist of a certain number of color or black and white pixels placed in front of a light source or a reflective surface. The liquid crystal display has low power consumption, is popular with users, and is suitable for electronic equipment using batteries.
The backlight source is a light source for providing a liquid crystal display panel, the application field of the backlight source is continuously widened along with the continuous development of the liquid crystal display technology, the liquid crystal display cannot emit light, the liquid crystal display can achieve the display function only by being matched with the backlight source, the light emitting effect of the liquid crystal display directly influences the visual effect of the liquid crystal display, along with the pursuit of the market for a high-brightness backlight source, the number of the light sources used in the backlight source is more and more, the power is more and more high, and the heat dissipation performance is of great importance for the high-brightness. If the heat dissipation performance is not good, the service life of the light source is affected, and the backlight source component is damaged, so that the service life of the whole liquid crystal display is affected.
Therefore, it is an urgent problem to be solved in the art to provide a heat dissipation device and a display device, which can achieve better heat dissipation performance, prolong the service life of a light source, so as to improve the service life of the whole display device and save the cost for users.
Disclosure of Invention
In view of the above, the present invention provides a heat dissipation device and a display device.
The present invention provides a heat dissipating device, comprising: the backlight module comprises a backlight module and a heat dissipation assembly; the backlight module comprises a plurality of light sources, light source barriers and a backlight plate; the backlight plate comprises a backlight plate, a plurality of light sources and light source barriers, wherein the plurality of light sources and the light source barriers are arranged on the backlight plate; the light source partition comprises an outer frame, at least one transverse plate and/or at least one vertical plate, and the transverse plate and/or the vertical plate define an area where the light source is located in the outer frame; the heat dissipation assembly comprises a plurality of vent holes, an airflow inlet pipe and an airflow system; the light source and the transverse plate and/or the vertical plate adjacent to the light source are grid units, each grid unit comprises at least two vent holes, and the at least two vent holes are respectively formed in the transverse plate and/or the vertical plate in each grid unit; the outer frame comprises a first side wall and a second side wall which are oppositely arranged, and at least one opening is respectively formed in the first side wall and the second side wall; one end of the airflow introducing pipe is communicated with the inside of the light source partition through an opening of the first side wall, and the other end of the airflow introducing pipe is communicated with the airflow system.
The invention also provides a display device which comprises any one of the heat dissipation devices and a display panel arranged opposite to the backlight module.
Compared with the prior art, the heat dissipation device and the display device provided by the invention at least realize the following beneficial effects:
the air current inlet tube leads the air current in the air current system to pass through an opening on the first side wall of the outer frame and lead into the light source on the backlight plate to separate the shelves in, and through setting up a plurality of air vents on diaphragm and/or riser in the grid unit, it is more smooth to make the air current separate the interior directional circulation of shelves at the light source through its self mobility, the air current is diffusing to the light source and separates the in-process of each region in the shelves, not only can directly dispel the heat to the light source, can also dispel the heat to the backlight plate that produces heat because of the light source on the backlight unit, the last air current is drawn out from an opening on the second side wall. According to the invention, airflow is introduced from the airflow system, the airflow is utilized to accelerate heat dissipation, so that better heat dissipation performance is achieved, the airflow is easier to circulate due to the design of the plurality of vent holes, the heat dissipation performance is better, the service life of the display device with the heat dissipation device is prolonged, and the cost is saved. It should be noted that the invention does not limit the specific number and position arrangement relationship of the horizontal plates and the vertical plates in the light source partition, and the user can set the light source partition according to the actual situation of the requirement, and the invention is not limited specifically.
Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a light source barrier according to an embodiment of the present invention;
FIG. 3 is a schematic view of another embodiment of a light source barrier according to the present invention;
FIG. 4 is a schematic view of another structure of a light source barrier according to an embodiment of the present invention;
FIG. 5 is a schematic view of another embodiment of a light source barrier according to the present invention;
fig. 6 is a schematic structural diagram of a heat dissipation device according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of another heat dissipation device according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of another heat dissipation device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another heat dissipation apparatus according to an embodiment of the invention;
FIG. 10 is a schematic view of a structure of a gas flow introducing pipe according to the embodiment of the present invention;
FIG. 11 is another structural view of a gas flow introducing pipe according to the embodiment of the present invention;
FIG. 12 is a schematic view of another structure of a gas flow introducing pipe according to an embodiment of the present invention;
fig. 13 is a schematic side view of a heat dissipation device according to an embodiment of the invention;
FIG. 14 is a schematic structural diagram of a display device according to an embodiment of the present invention;
reference numerals: 1-light source, 2-light source barrier, 20-grid unit, 21-outer frame, 22-transverse plate, 23-vertical plate, 3-backlight plate, 4-vent hole, 41-first vent hole, 42-second vent hole, 5-airflow inlet pipe, 51-tubular flow pipe, 52-funnel-shaped ventilation pipe, 520-heat dissipation hole, 521-first pipe, 522-second pipe, 6-airflow system, 211-first side wall, 212-second side wall, 2111-opening, Y-first direction, X-second direction, 7-display device and 8-display panel.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention, fig. 2 is a schematic structural diagram of a light source barrier in an embodiment of the present invention, and as shown in fig. 1 and fig. 2, the embodiment provides a heat dissipation device, including: the backlight module comprises a backlight module and a heat dissipation assembly; the backlight module comprises a plurality of light sources 1, light source barriers 2 and a backlight plate 3; wherein, a plurality of light sources 1 and light source separating shelves 2 are all arranged on the backlight plate 3; the light source baffle 2 comprises an outer frame 21, at least one transverse plate 22 and/or at least one vertical plate 23, and the transverse plate 22 and/or the vertical plate 23 define the area where the light source 1 is located in the outer frame 21; the heat dissipation assembly comprises a plurality of vent holes 4, an airflow inlet pipe 5 and an airflow system 6; the light source 1 and the transverse plate 22 and/or the vertical plate 23 adjacent to the light source are one grid unit 20, each grid unit 20 comprises at least two vent holes 4, and the at least two vent holes 4 are respectively arranged on the transverse plate 22 and/or the vertical plate 23 in the grid unit 20; the outer frame 21 includes a first sidewall 211 and a second sidewall 212 which are oppositely arranged, and at least one opening 2111 is respectively arranged on the first sidewall 211 and the second sidewall 212; one end of the gas flow introduction tube 5 communicates with the inside of the light source barrier 2 through an opening 2111 of the first side wall 211, and the other end of the gas flow introduction tube 5 communicates with the gas flow system 6.
Specifically, the heat dissipation device in this embodiment includes a backlight module and a heat dissipation assembly, the backlight module includes a plurality of light sources 1, a light source partition 2, and a backlight plate 3, and the plurality of light sources 1 may be regularly arranged on the backlight plate 3, and how to arrange may also be specifically set according to a user's requirement. Optionally, the light source may be an LED, or may be other structures having the same function, and this embodiment is not particularly limited.
The light source partition 2 comprises an outer frame 21, at least one transverse plate 22 and/or at least one vertical plate 23, wherein the transverse plate 22 and/or the vertical plate 23 define an area where the light source 1 is located in the outer frame 21. FIG. 3 is a schematic view of another embodiment of a light source barrier according to the present invention; FIG. 4 is a schematic view of another structure of a light source barrier according to an embodiment of the present invention; fig. 5 is another schematic structural diagram of a light source barrier according to an embodiment of the invention. It should be noted that, referring to fig. 2, fig. 3, fig. 4, and fig. 5, the structure of the light source barrier 2 may include at least the following three cases:
as shown in fig. 2 and 3, the light source partition 2 comprises an outer frame 21 and a horizontal plate 22 and a vertical plate 23 intersecting with each other inside the outer frame, four grid units 20 are formed by one light source 1 adjacent to the horizontal plate 22 and the vertical plate 23 after the horizontal plate 22 and the vertical plate 23 intersect with each other, at least two vent holes 4 are formed in each grid unit 20, and the at least two vent holes 4 are respectively arranged on the horizontal plate 22 and the vertical plate 23 of the grid unit 20;
in the present embodiment, when the horizontal plate 22 and the vertical plate 23 intersect with each other, the horizontal plate 22 may be an integral structure, the vertical plate 23 may be a structure shown in fig. 2 to separate the horizontal plate 22, and the horizontal plate 22 may be a structure shown in fig. 3 to separate the vertical plate 23, which is not particularly limited in the present embodiment.
As shown in fig. 4, the light source partition 2 includes an outer frame 21 and a horizontal plate 22 inside the outer frame, two grid units 20 are formed by one horizontal plate 22 and one light source 1 adjacent to the horizontal plate 22, each grid unit 20 includes at least two vent holes 4, and at least two vent holes 4 are disposed on one horizontal plate 22;
as shown in fig. 5, the light source barrier 2 comprises an outer frame 21 and a vertical plate 23 inside the outer frame, wherein two grid units 20 are formed by one vertical plate 23 and one light source 1 adjacent to the vertical plate 23, each grid unit 20 comprises at least two vent holes 4, and the at least two vent holes 4 are arranged on one vertical plate 23;
the outer frame 21 of the light source partition 2 is provided with a first side wall 211 and a second side wall 212 which are opposite, and at least one opening 2111 is respectively opened on the first side wall 211 and the second side wall 212, one opening 2111 of the first side wall 211 is used for communicating with the inside of the light source partition 2, so as to facilitate the access of the airflow in the airflow introducing pipe 5, one opening 2111 of the second side wall 212 is used for allowing the airflow to flow out from one opening 2111 of the second side wall 212 after circulating and dissipating heat in each area inside the light source partition 2, the airflow after flowing out can be recycled after relevant treatment, and can also be directly discharged from the device, which is not particularly limited in this embodiment.
Referring to fig. 2, 3, 4 and 5 in conjunction with fig. 1, one end of the air flow introducing tube 5 is communicated with the inside of the light source partition 2 through an opening 2111 of the first side wall 211, and the other end of the air flow introducing tube 5 is communicated with the air flow system 6, so that the air flow of the air flow system 6 is introduced into the light source partition 2 through the air flow introducing tube 5 for heat dissipation. The airflow introducing pipe 5 of this embodiment introduces the airflow in the airflow system 6 into the light source partition 2 on the backlight plate 3 through an opening 2111 on the first side wall 211 of the outer frame 21, and makes the airflow directionally circulate more smoothly in the light source partition 2 through the fluidity of the airflow itself through a plurality of vent holes 4 arranged on the horizontal plate 22 and/or the vertical plate 23 in the grid unit 20, and in the process of diffusing the airflow to each region in the light source partition 2, the airflow can not only directly dissipate the heat of the light source 1, but also dissipate the heat of the backlight plate 3 on the backlight module due to the heat generated by the light source 1, and finally the airflow is led out from an opening 2111 on the second side wall 212 of the outer frame 21. The air current is introduced from the air current system 6 to the embodiment, the heat dissipation is accelerated by the air current, the better heat dissipation performance is achieved, the air current is easier to circulate due to the design of the plurality of air vents 4, the heat dissipation performance is better, the service life of the display device with the heat dissipation device is prolonged, and the cost is saved. It should be noted that, in the present embodiment, the specific number and the position arrangement relationship of the horizontal plates 22 and the vertical plates 23 in the light source partition 2 are not limited, and a user can set the number and the position arrangement relationship according to actual needs, which is not specifically limited in the present embodiment.
In some optional embodiments, please refer to fig. 6, fig. 6 is a schematic structural diagram of a heat dissipation device according to an embodiment of the present invention, in which the light source partition 2 includes an outer frame 21, M horizontal plates 22 arranged along a first direction Y, and N vertical plates 23 arranged along a second direction X;
wherein M, N are positive integers, M is more than or equal to 2, and N is more than or equal to 2;
the first direction Y is a direction in which the first sidewall 211 points to the second sidewall 212, and the second direction X intersects the first direction Y on the same horizontal plane.
In this embodiment, the quantity of horizontal plate 22 and riser 23 is two at least, and horizontal plate 22 and riser 23 are crossing relation, the technological effect that brings is, after the quantity of horizontal plate 22 and riser 23 becomes more, the grid unit 20 that it was defined after crossing then becomes more, because a grid unit 20 has two air vents 4 at least, along with the increase of air vent 4 quantity, the circulation of the air current that leads in from airflow system 6 through air current inlet tube 5 in light source separates shelves 2 will be faster easier, the radiating effect to light source 1 and whole backlight 3 has been improved, can promote whole heat abstractor's heat dispersion greatly.
In some alternative embodiments, referring to fig. 7, fig. 7 is a schematic structural diagram of another heat dissipation apparatus according to an embodiment of the present invention, in which the first direction Y is a direction in which the first sidewall 211 points vertically to the second sidewall 212, and the second direction X is perpendicular to the first direction Y on the same horizontal plane.
In this embodiment, it is further defined that the first direction Y is a direction in which the first side wall 211 points to the second side wall 212 vertically, the second direction X is perpendicular to the first direction Y on the same horizontal plane, that is, the horizontal plate 22 and the vertical plate 23 in the light source partition 2 are perpendicular to each other, which brings about the technical effects of facilitating the air flow to flow in each vent hole 4 along a direction perpendicular or parallel to the introduction direction of the air flow introduction tube 5, and reducing the probability that the air flow is blocked by the positions of the horizontal plate 22 and the vertical plate 23 where no vent hole 4 is provided, so that the air flow introduced by the air flow system 6 can be fully utilized for heat dissipation, and a better heat dissipation effect is achieved.
In some alternative embodiments, please refer to fig. 8, fig. 8 is a schematic structural diagram of another heat dissipation apparatus according to an embodiment of the present invention, in which the vent holes 4 include a plurality of first vent holes 41 and a plurality of second vent holes 42;
the first ventilation holes 41 are located in the horizontal plate 22 of the grid unit 20 aligned in the first direction Y, and the second ventilation holes 42 are located in the horizontal plate 22 and the vertical plate 23 of the grid unit 20 on both sides of the first ventilation holes 41.
In this embodiment, the plurality of ventilation holes 4 are classified according to the arrangement directions on the horizontal plate 22 and the vertical plate 23, the plurality of first ventilation holes 41 are located on the horizontal plate 22 in the grid unit 20 arranged in a row along the first direction Y, and the plurality of second ventilation holes 42 are located on the horizontal plate 22 and the vertical plate 23 in the grid unit 20 on both sides of the plurality of first ventilation holes 41, which brings the technical effect that the airflow flowing in from the airflow introducing tube 5 can be firstly diffused to the second ventilation holes 42 on both sides through the first ventilation holes 41 on the horizontal plate 22 closest to the airflow introducing tube, and then the airflow is finally converged and discharged through the first ventilation holes 41 in the middle after the airflow is in the middle, so that the airflow can be diffused to each area corner in the light source partition 2, thereby achieving a better heat dissipation effect and prolonging the service life of the backlight module.
In some alternative embodiments, please continue to refer to fig. 8, the apertures of the first ventilation holes 41 decrease in sequence along the first direction Y; the diameters of the second ventilation holes 42 in the transverse plate 22 in the first direction Y decrease in sequence, the diameters of the second ventilation holes 42 in the transverse plate 22 in the second direction X are equal, the diameters of the second ventilation holes 42 in the vertical plate 23 in the first direction Y decrease in sequence, and the diameters of the second ventilation holes 42 in the vertical plate 23 in the second direction X are equal.
In this embodiment, the apertures of the first ventilation holes 41 and the second ventilation holes 42 are further defined according to the arrangement direction, and the apertures of the ventilation holes 4 farther from the airflow introducing pipe 5 are made smaller, so that the airflow fluidity can be improved.
Specifically, please refer to fig. 9, fig. 9 is a schematic structural diagram of another heat dissipation apparatus according to an embodiment of the present invention, for example, the number of the horizontal plates 22 of the light source partition 2 is set to 7, the number of the vertical plates 23 is set to 2, the horizontal plates 22 and the vertical plates 23 are arranged in a frame 21 in a mutually perpendicular manner, an opening 2111 of the first side wall 211 on the frame 21 is a, and an opening 2111 of the second side wall 212 is I;
if the first ventilation holes 41 along the first direction Y are sequentially set to B, C, D, E, F, G, H, the size relationship of the hole diameters is B > C > D > E > F > G > H;
b1, C1, D1, E1, F1, G1 and H1 sequentially form one row of second ventilation holes 42 in the transverse plate 22 along the first direction Y, and B2, C2, D2, E2, F2, G2 and H2 sequentially form another row of second ventilation holes 42 in the transverse plate 22 along the first direction Y, so that the pore diameters of the second ventilation holes have the size relationship of B1> C1> D1> E1> F1> G1> H1, B1 ═ B2, C1 ═ C2, D1 ═ D2, E1 ═ E2, F1 ═ F2, G1 ═ G2 and H1 ═ H2;
if a row of second ventilation holes 42 along the first direction Y on the riser 23 are sequentially a1, b1, c1, d1, e1, f1, g1 and h1, and another row of second ventilation holes 42 along the first direction Y on the riser 23 are sequentially a2, b2, c2, d2, e2, f2, g2 and h2, the pore diameters of the second ventilation holes have a size relationship of a1> b1> c1> d1> e1> f1> g1> h1, a1, b1 ═ b1, c1 ═ c1, d1 ═ d1, e1 ═ e1, f1 ═ f1, g1, h1 ═ g1 and h 1;
it should be noted that, in this embodiment, the sizes of the opening a of the first side wall 211 and the opening I of the second side wall 212 are not further limited, the size of the opening a of the first side wall 211 may be set according to the pipe diameter of the airflow introducing pipe 5, and the size of the opening I of the second side wall 212 may be set according to the size of the pipeline that is connected when the final airflow is discharged.
In some alternative embodiments, with continued reference to fig. 9, the center lines of the first vent hole 41, the opening 2111 of the first sidewall 211, and the opening 2111 of the second sidewall 212 are aligned.
In this embodiment, the center lines of the first vent hole 41, the opening 2111 of the first sidewall 211, and the opening 2111 of the second sidewall 212 are further defined to be on the same straight line, so that the airflow passes through the first vent hole 41 more smoothly, the airflow flowing effect can be further improved, and the heat dissipation performance of the heat dissipation device is improved.
It should be further noted that, in order to further improve the flowing effect of the airflow and further improve the heat dissipation performance of the heat dissipation device, in the embodiment, the center lines of the first vent B, C, D, E, F, G, H, the opening a of the first sidewall 211, and the opening I of the second sidewall 212 along the first direction Y may be disposed on the same straight line; the center lines of one row of the second air holes B1, C1, D1, E1, F1, G1 and H1 in the horizontal plate 22 along the first direction Y may be arranged on the same straight line, and the center lines of the other row of the second air holes B2, C2, D2, E2, F2, G2 and H2 in the horizontal plate 22 along the first direction Y may be arranged on the same straight line; the center lines of the second ventilation holes a1 and a2 in the second direction X on the riser 23 may be placed on the same straight line, the center lines of b1 and b2 may be placed on the same straight line, the center lines of c1 and c2 may be placed on the same straight line, the center lines of d1 and d2 may be placed on the same straight line, the center lines of e1 and e2 may be placed on the same straight line, the center lines of f1 and f2 may be placed on the same straight line, the center lines of g1 and g2 may be placed on the same straight line, and the center lines of h1 and h2 may be placed on the same straight line.
In some alternative embodiments, with continued reference to fig. 9, the adjacent transverse boards 22 have the same spacing along the first direction Y, and the adjacent vertical boards 23 have the same spacing along the second direction X.
In this embodiment, it is further defined that the distances between the adjacent transverse plates 22 and the adjacent vertical plates 23 in the light source partition 2 are equal, that is, the distances between every two adjacent transverse plates 22 are parallel to each other and equal, and the distances between every two adjacent vertical plates 23 are parallel to each other and equal, so that the shapes and sizes of the grid units 20 formed by the transverse plates 22 and the vertical plates 23 after intersecting with the light source 1 can be the same, the heat dissipation of the airflow to each grid unit 20 is uniform, and the airflow flowing performance is further optimized.
It should be noted that, in this embodiment, a distance between the outer frame 21 and the adjacent horizontal plate 22 may be equal to a distance between the adjacent horizontal plates 22, and a distance between the outer frame 21 and the adjacent vertical plate 23 may be equal to a distance between the adjacent vertical plates 23, and this embodiment is not particularly limited.
In some alternative embodiments, please continue to refer to fig. 9, the vent hole 4 is a circular hole with a diameter larger than 5 mm.
In this embodiment, the specification of further injecing air vent 4 is the round hole that the aperture is greater than 5mm, can make setting up of air vent more reasonable to reach better heat dissipation circulation effect.
In some alternative embodiments, referring to fig. 10, fig. 10 is a schematic structural diagram of an airflow introducing pipe according to an embodiment of the present invention, the airflow introducing pipe 5 includes a tubular flow pipe 51 and a funnel-shaped ventilation pipe 52, the tubular flow pipe 51 is at the end of the airflow introducing pipe 5 connected to the light source partition 2, and the funnel-shaped ventilation pipe 52 is at the end of the airflow introducing pipe 5 connected to the airflow system 6.
In this embodiment, the airflow introducing pipe 5 is designed to include two parts of the tubular flow pipe 51 and the funnel-shaped ventilation pipe 52, the large opening of the funnel-shaped ventilation pipe 52 is connected with the airflow system 6, the airflow is introduced to the airflow introducing pipe 5 in a maximized area, the speed of the airflow entering the airflow introducing pipe 5 is increased, and the airflow circulation efficiency is improved.
In some alternative embodiments, referring to fig. 11, fig. 11 is another structural schematic view of the airflow introducing pipe according to the embodiment of the present invention, and a plurality of heat dissipating holes 520 are formed on the wall of the funnel-shaped ventilation pipe 52.
In this embodiment, the plurality of heat dissipation holes 520 are further formed in the wall of the funnel-shaped ventilation pipe 52, which brings a technical effect of increasing the introduced airflow and dissipating heat at the same time, thereby further enhancing the heat dissipation performance of the heat dissipation device.
In some alternative embodiments, please continue to refer to fig. 11, the plurality of heat dissipation holes 520 are arranged in a circular shape.
In this embodiment, a plurality of heat dissipation holes 520 are further defined to be circularly arranged on the wall of the funnel-shaped ventilation pipe 52, and the heat dissipation holes 520 can achieve the effect of uniform heat dissipation.
In some alternative embodiments, referring to fig. 12, fig. 12 is another structural schematic diagram of the airflow introducing pipe according to the embodiment of the present invention, the funnel-shaped ventilation pipe 52 includes a first pipe 521 and a second pipe 522 which are integrally formed in a funnel shape, the inner diameter of the small-diameter end of the first pipe 521 is equal to the inner diameter of the large-diameter end of the second pipe 522, and the inner diameter of the small-diameter end of the second pipe 522 is equal to the inner diameter of the tubular flow-through pipe 51.
In this embodiment, the funnel-shaped ventilation pipe 52 is designed into the integrally formed structures of the funnel-shaped first pipe 521 and the second pipe 522, and in the process of introducing the airflow into the funnel-shaped ventilation pipe 52, the funnel-shaped first pipe 521 with a large area is introduced into the funnel-shaped second pipe 522 with a small area, and finally the airflow flows into the tubular flow pipe 51 to play a role of transitional drainage, so as to achieve a better airflow circulation effect.
In some alternative embodiments, continuing to refer to fig. 1, the airflow system 6 includes at least one of a heat dissipation fan or an air conditioning system.
In this embodiment, the air flow system 6 may be a heat dissipation fan or an air conditioning system, and it should be noted that this embodiment is merely an example, and is not limited to only one of the two, and it is conceivable that the air flow system 6 may be any device capable of achieving an air flow introduction effect, and this embodiment is not further limited.
In some alternative embodiments, please refer to fig. 13, and fig. 13 is a schematic side view of a heat dissipation device according to an embodiment of the present invention, in which a heat dissipation fan is disposed on a side of the backlight plate 3 away from the light source 1.
In this embodiment, if airflow system 6 is radiator fan, then the position of its installation is on deviating from light source 1 one side for backlight unit board 3, and the technical effect that brings is that radiator fan not only can blow the heat dissipation to backlight unit board 3, can also provide the air current and introduce light source separation 2 and carry out the heat dissipation of backlight unit board 3 light source 1 one side, and the heat dissipation is handled simultaneously to backlight unit board 3 both sides, has further improved this heat abstractor's radiating effect.
In some optional embodiments, please refer to fig. 14, fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present invention, and a display device 7 is further provided, where the display device 7 includes any one of the heat dissipation devices in the embodiments, and a display panel 8 disposed opposite to the backlight module.
According to the embodiment, the heat dissipation device and the display device provided by the invention at least realize the following beneficial effects:
the airflow introducing pipe 5 of this embodiment introduces the airflow in the airflow system 6 into the light source partition 2 on the backlight plate 3 through an opening 2111 on the first side wall 211 of the outer frame 21, and makes the airflow directionally circulate more smoothly in the light source partition 2 through the fluidity of the airflow itself through a plurality of vent holes 4 arranged on the horizontal plate 22 and/or the vertical plate 23 in the grid unit 20, and in the process of diffusing the airflow to each region in the light source partition 2, the airflow can not only directly dissipate the heat of the light source 1, but also dissipate the heat of the backlight plate 3 on the backlight module due to the heat generated by the light source 1, and finally the airflow is led out from an opening 2111 on the second side wall 212 of the outer frame 21. According to the invention, airflow is introduced from the airflow system 6, the airflow is utilized to accelerate heat dissipation, so that better heat dissipation performance is achieved, the airflow is easier to circulate due to the design of the plurality of air vents 4, the heat dissipation performance is better, the service life of the light source 1 is prolonged, the service life of the display device with the heat dissipation device is prolonged, and the cost is saved. It should be noted that the present invention does not limit the specific number and position arrangement relationship of the horizontal plates 22 and the vertical plates 23 in the light source partition 2, and the user can set the light source partition according to the actual situation of the requirement, which is not limited in the present invention.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (13)
1. A heat dissipating device, comprising: the backlight module comprises a backlight module and a heat dissipation assembly;
the backlight module comprises a plurality of light sources, light source barriers and a backlight plate; the light sources and the light source barriers are arranged on the backlight plate; the light source partition comprises an outer frame, M transverse plates and N vertical plates, wherein the M transverse plates are arranged along a first direction, the N vertical plates are arranged along a second direction, and the transverse plates and/or the vertical plates define an area where the light source is located in the outer frame; wherein M, N are positive integers, M is more than or equal to 2, and N is more than or equal to 2;
the heat dissipation assembly comprises a plurality of vent holes, an airflow inlet pipe and an airflow system; the light source and the transverse plate and/or the vertical plate adjacent to the light source are grid units, each grid unit comprises at least two vent holes, and the at least two vent holes are respectively formed in the transverse plate and/or the vertical plate in each grid unit;
the vent holes comprise a plurality of first vent holes and a plurality of second vent holes; the plurality of first vent holes are positioned on transverse plates in a row of grid units arranged along the first direction, and the plurality of second vent holes are positioned on the transverse plates and the vertical plates of the grid units on two sides of the plurality of first vent holes;
the outer frame comprises a first side wall and a second side wall which are oppositely arranged, and at least one opening is respectively formed in the first side wall and the second side wall; the first direction is a direction in which the first side wall points to the second side wall, and the second direction intersects with the first direction on the same horizontal plane;
one end of the airflow introducing pipe is communicated with the inside of the light source partition through an opening of the first side wall, and the other end of the airflow introducing pipe is communicated with the airflow system.
2. The heat dissipating device of claim 1, wherein the first direction is a direction in which the first sidewall is directed perpendicular to the second sidewall, and the second direction is perpendicular to the first direction on a same horizontal plane.
3. The heat dissipating device of claim 1, wherein the first vent holes decrease in diameter in the first direction in sequence; the second ventilation hole on the diaphragm reduces along the aperture of first direction in proper order the second ventilation hole on the diaphragm equals along the aperture of second direction on the riser the second ventilation hole reduces along the aperture of first direction in proper order on the riser the second ventilation hole on the riser equals along the aperture of second direction.
4. The heat dissipating device of claim 3, wherein the centerlines of the first vent hole, the one opening of the first sidewall, and the one opening of the second sidewall are collinear.
5. The heat dissipating device of claim 1, wherein adjacent transverse plates are equally spaced in a first direction and adjacent vertical plates are equally spaced in a second direction.
6. The heat dissipating device of claim 1, wherein the vent holes are round holes with a diameter greater than 5 mm.
7. The heat dissipating device of claim 1, wherein the airflow introducing pipe comprises a tubular flow pipe and a funnel-shaped ventilation pipe, the tubular flow pipe is connected to the light source barrier, and the funnel-shaped ventilation pipe is connected to the airflow system.
8. The heat dissipating device of claim 7, wherein the wall of the funnel-shaped vent has a plurality of louvers.
9. The heat dissipating device of claim 8, wherein the plurality of heat dissipating holes are arranged in a circle.
10. The heat sink of claim 7, wherein the funnel-shaped vent tube comprises a first and second integrally formed funnel-shaped tube, the first tube having a smaller diameter end of the same inside diameter as the larger diameter end of the second tube, and the second tube having a smaller diameter end of the same inside diameter as the tubular flow-through tube.
11. The heat dissipating device of claim 1, wherein the airflow system comprises at least one of a heat dissipating fan or an air conditioning system.
12. The heat dissipating device as claimed in claim 11, wherein the heat dissipating fan is disposed on a side of the backlight plate facing away from the light source.
13. A display device, comprising the heat dissipation device according to any one of claims 1 to 12, and a display panel disposed opposite to the backlight module.
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| CN201810241411.8A CN108563066B (en) | 2018-03-22 | 2018-03-22 | Heat dissipation device and display device |
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| CN201810241411.8A CN108563066B (en) | 2018-03-22 | 2018-03-22 | Heat dissipation device and display device |
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| CN101153993A (en) * | 2006-09-29 | 2008-04-02 | 鸿富锦精密工业（深圳）有限公司 | Directly-down back light module set |
| CN102588841A (en) * | 2012-02-21 | 2012-07-18 | 南京汇兴博业数字设备有限公司 | Direct type liquid crystal backlight module with adaptive-temperature and high-brightness LEDs (light-emitting diode) |
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| GB2447443A (en) * | 2007-03-05 | 2008-09-17 | Sharp Kk | Backlight and display |
| US8089582B2 (en) * | 2007-05-31 | 2012-01-03 | Hitachi Displays, Ltd. | Liquid crystal display device comprising at least one groove having an end portion that stops short of the non-adjacent opposite side surfaces and extends in a direction perpendicular to the non-adjacent side surfaces |
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| CN101153993A (en) * | 2006-09-29 | 2008-04-02 | 鸿富锦精密工业（深圳）有限公司 | Directly-down back light module set |
| CN102588841A (en) * | 2012-02-21 | 2012-07-18 | 南京汇兴博业数字设备有限公司 | Direct type liquid crystal backlight module with adaptive-temperature and high-brightness LEDs (light-emitting diode) |
| CN104678636A (en) * | 2015-03-27 | 2015-06-03 | 上海启钧电子有限公司 | Radiating structure of display module |
| CN205678515U (en) * | 2016-06-08 | 2016-11-09 | 广州市拓宝电子科技有限公司 | A kind of high color saturation display device |
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