CN112466221A - Display device - Google Patents
Display device Download PDFInfo
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- CN112466221A CN112466221A CN202011449849.9A CN202011449849A CN112466221A CN 112466221 A CN112466221 A CN 112466221A CN 202011449849 A CN202011449849 A CN 202011449849A CN 112466221 A CN112466221 A CN 112466221A
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- air outlet
- assembly
- air
- display panel
- display device
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
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- Engineering & Computer Science (AREA)
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- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display device, which comprises a display panel and a heat dissipation device, wherein the display panel comprises a light-emitting surface and a backlight surface, the heat dissipation device is positioned on one side of the backlight surface, which is far away from the light-emitting surface, and the heat dissipation device and the display panel are at least partially overlapped in a direction vertical to the light-emitting surface; the heat dissipation device comprises an air outlet assembly and a driving assembly; the air outlet assembly comprises at least one air outlet, the air outlet assembly is driven by the driving assembly to drive the air outlet to rotate, the air outlet assembly comprises a first state and a second state, the air outlet direction of the air outlet is the first direction in the first state, the air outlet direction of the air outlet is the second direction in the second state, the included angle between the first direction and the second direction is M, M is larger than 0 degree and smaller than or equal to 180 degrees, and the first direction and the second direction are both parallel to the plane where the display panel is located. The display device drives the component to drive the air outlet to rotate, so that the air outlet direction of the air outlet is changed from the first direction to the second direction, the corresponding position of the display panel is subjected to heat dissipation in a targeted mode, and the heat dissipation efficiency is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
With the increase of the functions of electronic products, the requirements on the display screen are increased, and the pursuit of brightness and color also means that the power consumption is increased, so that the temperature of the display screen is increased rapidly, and if the heat in the display screen cannot be dissipated in time, the temperature of an LED chip is overhigh, so that the service life, the luminous efficiency and the stability of an LED are influenced; meanwhile, too high temperature can change the electro-optical performance of the liquid crystal display panel, and the use of the whole product is influenced.
The existing heat dissipation technology is mostly an active heat dissipation technology, namely active heat dissipation equipment such as a fan is additionally installed from the overall heat dissipation angle, but the display screen is mainly concentrated in the middle of the display screen or is determined along with the position of display content due to heat generation, and the problem of local heat dissipation which cannot be better solved is considered according to the overall heat dissipation. Because the air-out fixed position also can't make corresponding countermeasure to the condition that the product changes that generates heat, the radiating efficiency is low to influence the radiating effect.
Disclosure of Invention
In view of this, the present invention provides a display device, which can change the position of the air outlet according to the heating variation condition in the display panel, thereby improving the heat dissipation efficiency.
The invention provides a display device, which comprises a display panel and a heat dissipation device, wherein the display panel comprises a light-emitting surface and a backlight surface, the heat dissipation device is positioned on one side of the backlight surface, which is far away from the light-emitting surface, and the heat dissipation device and the display panel are at least partially overlapped in a direction vertical to the light-emitting surface;
the heat dissipation device comprises an air outlet assembly and a driving assembly;
the air outlet assembly comprises at least one air outlet, the driving assembly drives the air outlet to rotate, the air outlet assembly comprises a first state and a second state, the air outlet direction of the air outlet is a first direction in the first state, the air outlet direction of the air outlet is a second direction in the second state, the included angle between the first direction and the second direction is M, wherein M is larger than 0 degree and is less than or equal to 180 degrees, and the first direction and the second direction are both parallel to the plane where the display panel is located.
Compared with the prior art, the display device provided by the invention at least realizes the following beneficial effects:
the display device utilizes the heat dissipation device to dissipate heat of the display panel, the heat dissipation device comprises an air outlet assembly and a driving assembly, the air outlet assembly comprises at least one air outlet, and the driving assembly drives the air outlet to rotate. According to the invention, the driving component can drive the air outlet to rotate, so that when the temperature of any position of the display panel is overheated, the air outlet direction of the air outlet can be switched from the first direction to the second direction, and the heat of the area with the overheated temperature of any position is dissipated, thereby more specifically solving the problem of overhigh local temperature of the display panel.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described 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 a display device according to the present invention;
FIG. 2 is an exploded view of a display device according to the present invention;
FIG. 3 is a comparison diagram of the air outlet assembly in the first state and the second state, respectively;
FIG. 4 is an exploded view of yet another display device provided by the present invention;
FIG. 5 is a comparison diagram of the air outlet assembly in the first state and the second state, respectively;
FIG. 6 is a schematic structural diagram of a driving assembly according to the present invention;
FIG. 7 is a schematic structural view of a drive assembly provided by the present invention;
FIG. 8 is an exploded view of yet another display panel provided by the present invention;
fig. 9 is a schematic structural diagram of another display device provided by the present invention.
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.
In view of the situation that the air outlet of the heat dissipation structure in the display device of the prior art is fixed in position and cannot perform local heat dissipation on any position in the display panel, the present invention provides a display device, and the specific embodiment of the display device will be described in detail below.
Referring to fig. 1, 2 and 3, fig. 1 is a schematic structural view of a display device provided by the present invention, fig. 2 is an exploded schematic view of the display device provided by the present invention, and fig. 3 is a comparison view of an air outlet assembly in a first state and a second state, respectively.
The display device 100 of the invention comprises a display panel 1 and a heat dissipation device 2, wherein the display panel 1 comprises a light-emitting surface OU and a backlight surface IN, the heat dissipation device 2 is positioned on one side of the backlight surface IN far away from the light-emitting surface OU, and IN the direction perpendicular to the light-emitting surface OU, the heat dissipation device 2 and the display panel 1 are at least partially overlapped;
the heat dissipation device 2 comprises an air outlet assembly 3 and a driving assembly 4;
the air outlet assembly 3 comprises at least one air outlet 5, the driving assembly 4 drives the air outlet 5 to rotate, referring to fig. 3, the air outlet assembly 3 comprises a first state Z1 and a second state Z2, the air outlet direction of the air outlet 5 is a first direction F1 under the first state Z1, the air outlet direction of the air outlet 5 is a second direction F2 under the second state Z2, the included angle between the first direction F1 and the second direction F2 is M, wherein M is greater than 0 degree and less than or equal to 180 degrees, and the first direction F1 and the second direction F2 are both parallel to the plane where the display panel 1 is located.
In the direction perpendicular to the light emitting surface OU, the heat dissipation device 2 is at least partially overlapped with the display panel 1, wherein optionally, the air outlet assembly 3 is overlapped with the display panel 1, and the driving assembly 4 is partially overlapped with the display panel 1.
Optionally, the air outlet assembly 3 has a semi-closed accommodating space, air is exhausted only through the air outlet 5, and the air outlet of the air outlet 5 can dissipate heat of the display panel 1.
Optionally, the display panel 1 in the present invention may be a liquid crystal display panel, and may also be an organic self-luminous display panel.
It should be noted that, the structure of the air outlet assembly 3 and the driving assembly 4 is not specifically limited in this embodiment, as long as the air outlet 5 of the air outlet assembly 3 can be rotated under the driving of the driving assembly 4, and only one possible situation of the air outlet assembly 3 and the driving assembly 4 is shown in fig. 1 and 2. Fig. 3 only shows a case where the included angle M between the first direction F1 and the second direction F2 is 180 °, it goes without saying that both the first direction F1 of the air outlet direction of the air outlet 5 in the first state Z1 and the second direction F2 of the air outlet direction of the air outlet 5 in the second state Z2 can be changed according to the position where heat dissipation is actually required, and it goes without saying that the included angle between the first direction F1 and the second direction F2 also changes according to the position where heat dissipation is actually required. It can be understood that, in the present invention, the first direction F1 and the second direction F2 are both parallel to the plane of the display panel 1, and when the heat generated at any position in the display panel 1 exceeds a predetermined value or the temperature at any position in the display panel 1 exceeds a predetermined temperature, the air outlet 5 will emit cold air to dissipate the heat generated by the display panel 1, of course, the heat dissipation directions are also along the first direction F1 and the second direction F2.
It can be understood that local areas in the display panel 1 are prone to generate heat intensively, for example, the middle portion of the display panel, the position of the display panel where the driving chip is disposed, or the position along with the display content, where heat is easily generated, and in the prior art, since the position of the air outlet is fixed, it is not possible to perform targeted heat dissipation according to the position where the display panel actually generates heat. In the invention, the driving component 4 drives the air outlet 5 to rotate, so that when the temperature of any position of the display panel 1 is overheated, the air outlet direction of the air outlet can be switched from the first direction to the second direction, and the area with the overheated temperature of any position is radiated, thereby more pertinently solving the problem of overhigh local temperature of the display panel.
In some alternative embodiments, with continued reference to fig. 1, fig. 2 and fig. 3, the air outlet 5 rotates around a first axis X, so that the air outlet direction of the air outlet 5 is switched between a first direction F1 and a second direction F2, where the first axis X is perpendicular to the plane of the display panel 1.
Certainly, the structure of the air outlet assembly 3 is not specifically limited in this embodiment, as long as the air outlet 5 of the air outlet assembly 3 can be driven by the driving assembly 4 to rotate around the first axis X, the first axis X here may be a virtual axis or not, and the first axis X in this embodiment is a virtual axis and is located at the central point of the air outlet assembly 3.
Of course, as shown in fig. 1 to fig. 3, the number of the air outlets 5 in the embodiment is smaller than that in the embodiments shown in fig. 4 and fig. 5, and the openings are smaller. The air outlet assembly 3 is provided with a gear, the driving assembly 4 is meshed with the air outlet assembly 3, so that an air outlet of the air outlet assembly 3 is driven to rotate around a first axis X, when the temperature of any position of the display panel 1 is overheated, on one hand, the air outlet direction of the air outlet 5 can be switched from a first direction F1 to a second direction F2, and the heat of the overheated area of the temperature of any position is dissipated, so that the problem of overhigh local temperature of the display panel is solved more specifically; on the other hand, the number of the air outlets 5 is small in the embodiment, and the openings are small, so that the air outlet direction can be controlled accurately.
In some alternative embodiments, with continued reference to fig. 1, 2 and 3, the air outlet assembly 3 has a receiving space, the air outlet assembly 3 includes an upper surface 32, a lower surface 33 and a side plate 34, the side plate 34 is connected between the upper surface 32 and the lower surface 33, the side plate 34 can rotate around at least the upper surface 32, and the side plate 34 is provided with the air outlet 5 to form an air outlet ring 30;
optionally, in fig. 2, the air outlet assembly 3 has an accommodating space, and the air outlet assembly 3 includes an upper surface 32, a lower surface 33 and a side plate 34 forming the accommodating space, and the side plate 34 is connected between the upper surface 32 and the lower surface 33, where the accommodating space is used for storing cold air provided by an air source.
Optionally, the side plate 34 is slidably connected to the upper surface 32, and the side plate 34 is capable of rotating relative to the upper surface 32. in some alternative embodiments, the upper surface 32 may not rotate relative to the first axis X, and the side plate 34 may rotate relative to the upper surface 32 about the first axis X.
Optionally, the air outlet assembly 3 further includes a connector 35 connected between the upper surface 32 and the lower surface 33, the connector 35 is used for connecting the upper surface 32 and the lower surface 33, so that the structure is more stable, in addition, the connector 35 is used for connecting a side plate 34, the side plate 34 is located on one side of the connector 35 far away from the accommodating space, in some optional embodiments, a plurality of large hollow portions are arranged on the connector 35, and when the side plate 34 rotates relative to the first surface 32, when the air outlet 5 on the side plate 34 is overlapped with the hollow portions on the connector 35, air can be discharged from the air outlet.
The air outlet 5 is formed through the side plate 34, so that the accommodating space is communicated with the outside, and the air in the accommodating space is discharged from the air outlet 5.
Here, the rotation of the side plate 34 coincides with the rotation of the outlet 5 about the first axis X, and the rotation of the side plate 34 is also performed about the first axis X as a rotation axis, so that the outlet 5 thereon can be switched between the first direction F1 and the second direction F2.
In some alternative embodiments, the side plate 34 is annular in orthographic projection of the plane of the upper surface 32, i.e., the side plate 34 is annular in cross-section, such that relative sliding is facilitated,
in this embodiment, the side plate 34 can rotate around the upper surface 32 at least, and in the rotation process of the side plate 34, the air outlet 5 on the side plate 34 is switched between the first direction F1 and the second direction F2 to dissipate heat of an area with an overheated temperature at any position, so as to solve the problem of an overhigh local temperature of the display panel more specifically.
In some alternative embodiments, with continued reference to fig. 1-3, the entrainment member 4 includes a pulley 40, the pulley 40 moves about an axis perpendicular to the plane of the display panel 1, and the pulley 40 entrains the air ring 30 for rotation.
When the pulley 40 moves around the axis K perpendicular to the plane of the display panel 1, the air outlet ring 30 is driven to rotate around the first axis X, so that the air outlet direction of the air outlet 5 is changed from the first direction F1 to the second direction F2.
In some alternative embodiments, with continued reference to fig. 1 to 3, a plurality of first gears 301 are provided on the outer surface of the side plate 34 facing away from the accommodating space, a plurality of second gears 401 are provided on the side of the pulley 40 facing the side plate 34, and the first gears 301 mesh with the second gears 401.
Referring to fig. 1 and 2, the orthographic projection of the air outlet ring 30 on the plane of the display panel 1 is annular, the air outlet ring 30 is provided with a circle of first gears 301, the driving component 4 includes the belt pulley 40, the second gears 401 on the inner wall of the belt pulley 40 are meshed with the first gears 301 on the outer wall of the air outlet ring 30, certainly, the air outlet 5 on the air outlet ring 30 and the first gears 301 on the outer wall of the air outlet ring 30 are not interfered with each other, as shown in the figure, in the direction perpendicular to the plane of the display panel 1, the first gears 301 on the outer wall of the air outlet ring 30 are located on the side of the air outlet 5 far away from the light emitting surface of the display panel 1, it is ensured that the gears on the outer wall of the air outlet ring 30 do not shield the air outlet. When the belt wheel 40 moves around the axis K perpendicular to the plane of the display panel 1, the second gear 401 on the inner wall of the belt wheel 40 is engaged with the first gear 301 on the outer wall of the air outlet ring 30 to drive the air outlet ring 30 to rotate around the first axis X, so that the air outlet direction of the air outlet 5 is changed from the first direction F1 to the second direction F2, in this embodiment, the arrangement of the belt wheel 40 can provide rotation power and rotation direction for the air outlet ring 30.
In some alternative embodiments, with continued reference to fig. 1 and 2, the pulley 40 surrounds the side plate 34, and the pulley 40 is disposed around the air outlet assembly 3, particularly around the side plate 34, such that the second gear 401 on the inner wall of the pulley 40 is engaged with the first gear 301 on the outer wall of the air outlet ring 30, and can drive the side plate 34 to rotate along the first axis X, so that the air outlet direction of the air outlet 5 changes from the first direction F1 to the second direction F2, in this embodiment, the pulley 40 is disposed to provide rotation power and rotation direction for the air outlet ring 30.
In some alternative embodiments, referring to fig. 4 and 5, fig. 4 is an exploded view of another display device provided by the present invention, and fig. 5 is a comparison view of the air outlet assembly in the first state and the second state, respectively. The air outlet assembly 3 further includes a baffle 31, the baffle 31 moves relative to the air outlet 5, the air outlet 5 includes a first air outlet 51 and a second air outlet 52, an air outlet direction of the first air outlet 51 is a first direction F1, an air outlet direction of the second air outlet 52 is a second direction F2, the baffle 31 blocks the second air outlet 52 under the first state Z1, and the baffle blocks the first air outlet 51 under the second state Z2.
In fig. 4 and 5, the air outlet assembly 3 only has one first air outlet 51 and one second air outlet 52, and may also have a plurality of first air outlets 51 and a plurality of second air outlets 52. In the present embodiment, the baffle 31 moves relative to the air outlet 5, as shown in fig. 4 and 5, the baffle 31 can rotate around the axis Y, as shown in fig. 5, when in the first state Z1, the baffle 31 rotates to block the second air outlet 52, and at this time, the air is discharged from the first air outlet 51, and the air discharging direction is the first direction F1; in the second state Z2, the baffle 31 rotates to block the first outlet 51, and the second outlet 52 discharges air in the second direction F2, so that the air discharge direction of the outlet is switched from the first direction F1 to the second direction F2. When the temperature of any position of the display panel 1 is too hot, the baffle 31 moves relative to the air outlet 5, on one hand, the air outlet direction of the air outlet 5 can be switched from the first direction F1 to the second direction F2, and the heat is dissipated in the area with the temperature too hot at any position, so that the problem of the local temperature of the display panel is solved in a more targeted manner, on the other hand, the opening of the air outlet 5 in the embodiment is large, more air outlet angles can be triggered by the rotation of the baffle 31, the air outlet area can be large, and the rapid heat dissipation is facilitated.
In some alternative embodiments, with continued reference to fig. 4 and 5, the air outlet assembly 3 includes an air outlet ring 30, an orthographic projection of the air outlet ring 30 on the plane of the display panel 1 is annular, and the air outlet ring 30 includes a plurality of air outlets 5 arranged along an annular direction;
it should be understood that, here, the air outlet ring 30 includes a plurality of air outlets 5 arranged in a ring shape, which means that the air outlets 5 are arranged along the air outlet ring 30.
In this embodiment, the plurality of air outlets 5 are provided, when the baffle 41 rotates in the first state, the baffle 41 shields a part of the air outlets, and the air outlet direction of the remaining part of the air outlets is the first direction F1, and similarly, when the baffle 41 rotates in the second state, the baffle 41 shields another part of the air outlets, and the air outlet direction of the remaining part of the air outlets is the second direction F2, so that the air outlet direction of the air outlets is switched from the first direction F1 to the second direction F2.
In some alternative embodiments, with continued reference to fig. 4 and 5, the driving assembly 4 includes a pulley 40, the pulley 40 moves around an axis K perpendicular to the plane of the display panel 1, the pulley 40 engages with the barrier 31, and the pulley 40 drives the barrier 31 to rotate.
In the direction perpendicular to the plane of the display panel 1, the end of the baffle 31 far away from the display panel 1 is provided with a gear, the driving component 4 comprises a belt wheel 40, teeth on the inner wall of the belt wheel 40 are meshed with the gear on the baffle 31, and therefore the belt wheel 40 drives the baffle 31 to rotate relative to the air outlet 5 when moving. It will of course be appreciated that the outlet 5 may be stationary.
In this embodiment, the plurality of air outlets 5 are provided, when the belt pulley 40 drives the baffle plate 41 to rotate in the first state, the baffle plate 41 shields a part of the air outlets, and the air outlet direction of the remaining part of the air outlets is the first direction F1, and similarly, when the belt pulley 40 drives the baffle plate 41 to rotate in the second state, the baffle plate 41 shields another part of the air outlets, and the air outlet direction of the remaining part of the air outlets is the second direction F2, so that the air outlet direction of the air outlets is switched from the first direction F1 to the second direction F2, in this embodiment, the belt pulley 40 is provided to provide the baffle plate 41 with rotational power and rotational direction.
In some alternative embodiments, with continuing reference to fig. 1 to 5 and fig. 6, fig. 6 is a schematic structural diagram of the driving assembly provided by the present invention.
Referring to fig. 2, drive subassembly 4 and include motor element 41, the one end of band pulley 40 and the meshing of air-out ring 30, motor element 41 is located the other end of band pulley 40, the other end of band pulley 40 and the meshing of the axis of rotation 42 on the motor element 41, axis of rotation 42 then can drive band pulley 40 and rotate when rotating, band pulley 40 rotates the back, it is rotatory around primary shaft X to drive the air outlet of air-out subassembly 3, through setting up motor element 41 in this embodiment, produce driving torque, as the rotatory power supply of air outlet, on the other hand, the slew velocity of air outlet can be controlled to the slew velocity of the axis of rotation 42 of motor element 41, the slew velocity of air outlet is also faster the slew velocity of axis of rotation 42.
Referring to fig. 4, the driving assembly 4 includes a motor assembly 41, one end of the belt wheel 40 is engaged with the baffle 31, the motor assembly 41 is located at the other end of the belt wheel 40, the other end of the belt wheel 40 is engaged with a rotating shaft 42 on the motor assembly 41, the rotating shaft 42 can drive the belt wheel 40 to rotate when rotating, the baffle 31 rotates after the belt wheel 40 rotates, when the first state Z1 is detected, the baffle 31 shields the second air outlet 52 through rotation, at this time, the first air outlet 51 exhausts air, and the air exhaust direction is the first direction F1; in the second state Z2, the baffle 31 rotates to block the first outlet 51, and the second outlet 52 discharges air in the second direction F2, so that the air discharge direction of the outlet is switched from the first direction F1 to the second direction F2. In this embodiment, the motor assembly 41 is arranged to generate a driving torque as a power source for rotating the baffle 31, and on the other hand, the rotating speed of the baffle 31 can be controlled by the rotating speed of the rotating shaft 42 of the motor assembly 41, and the faster the rotating speed of the rotating shaft 42 is, the faster the rotating speed of the baffle 31 is, the faster the air outlet of the air outlet is, thereby being more beneficial to shortening the heat dissipation time.
In some alternative embodiments, with continued reference to fig. 2 and 6, the pulley 40 surrounds the outer ring of the air outlet ring 30, and the air outlet ring 30 further includes a first gear 301 thereon; the inner wall of the belt wheel 40 comprises a second gear 401, and the first gear 301 is meshed with the second gear 401; the rotating shaft 42 of the motor assembly 41 includes a third gear 421;
the display device 100 further includes a transmission gear assembly 43, the transmission gear assembly 43 includes a first portion 431 and a second portion 432, the first portion 431 and the second portion 432 are fixedly connected in a direction perpendicular to a plane of the display panel 1, the first portion 431 includes a fourth gear 4311, the second portion 432 includes a fifth gear 4321, the fourth gear 4311 is engaged with the second gear 401, and the fifth gear 4321 is engaged with the third gear 421.
The belt wheel 40 is disposed around the air outlet assembly 3, and particularly surrounds the air outlet ring 30, so that the second gear 401 on the inner wall of the belt wheel 40 is engaged with the first gear 301 on the outer wall of the air outlet ring 30, and the air outlet ring 30 can be driven to rotate along the first axis X.
In some alternative embodiments, the third gear 421 and the fifth gear 4321 are both helical gears.
It should be noted that, the arrangement direction of the rotating shaft 42 of the motor assembly 41 is parallel to the plane of the display panel, and the arrangement direction of the pulley 40 is also parallel to the plane of the display panel, in order to realize that the rotating shaft 42 drives the pulley 40 to move when rotating, a transmission gear assembly 43 is required to be provided, the transmission gear assembly 43 has an upper portion and a lower portion, namely a first portion 431 and a second portion 432, a fourth gear 4311 of the first portion 431 is meshed with the second gear 401 of the pulley 40, and a fifth gear 4321 of the second portion 432 is meshed with the third gear 421 of the rotating shaft 42, so that the rotating shaft 42 of the motor assembly 41 can drive the pulley 40 to move when rotating.
In some alternative embodiments, with continued reference to fig. 2, the display device 100 further includes a blowing assembly 9 and an air duct assembly 8, the blowing assembly 9 is located on a side of the air duct assembly 8 away from the air outlet assembly 3, and one end of the air duct assembly 8 is communicated with the air outlet assembly 3; the other end is connected with the blowing component 9 and provides an air source with flow force for the air outlet component 3.
In this embodiment, the blowing assembly 9 provides an air source with flowing power for the air outlet assembly 3, for example, blows cool air, and the cool air of the blowing assembly 9 is conveyed to the air outlet assembly 3 through the air duct assembly 8. In some alternative embodiments, the blowing assembly 9 may be a fan, and the air duct assembly 8 may be a hose or a PVC pipe, etc.
The cold wind that produces through blowing subassembly 9 is via wind channel subassembly 8, from the air outlet air-out of air-out subassembly 3, dispels the heat to display panel.
In some alternative embodiments, with continued reference to fig. 1, 2 and 7, fig. 7 is a schematic structural view of a drive assembly provided by the present invention. The air duct assembly 8 in fig. 1 and 2 includes an air guiding cover 81, one end of the air guiding cover 81 is connected to the blowing assembly 9, and the other end is connected to the upper surface of the air outlet assembly 3, and serves as a passage for transmitting the air source from the blowing assembly 9 to the air outlet assembly 3.
Particularly, the upper surface of the air outlet assembly 3 has an air inlet, the air inlet is connected with one end of the air guiding cover 81 far away from the air blowing assembly 9, a cold air channel for conveying the air blowing assembly 9 is formed, one end of the air guiding cover 81 is connected with the air blowing assembly 9, the other end of the air guiding cover is connected with the air inlet of the air outlet assembly 3, the cold air is sent out from the air outlet of the air outlet assembly 3, the air outlet assembly 3 in the embodiment includes an air outlet ring 30, air is discharged from the air outlet 5 of the air outlet ring 30, in the embodiment, the cold air generated by the air blowing assembly 9 is conveyed to the air outlet ring 30 through the air guiding.
In some alternative embodiments, referring to fig. 8, fig. 8 is an exploded view of another display panel provided by the present invention. The display device 100 of the invention further includes a first housing 10, the display panel 1 and the heat dissipation device 2 are both located IN the accommodating space of the first housing 10, the first housing 10 includes a bottom plate 101 and a sidewall 102, the sidewall 102 is located at an edge of the bottom plate 101, and protrudes out of the bottom plate 101 along a direction from the light exit surface OU to the backlight surface IN, the bottom plate 101 includes a hollow area 101a, and the display panel 1 is exposed by the hollow area 101a IN a direction perpendicular to the light exit surface OU of the display panel 1.
Optionally, the material of the first casing 10 may be metal.
IN the direction of the light-emitting surface OU pointing to the backlight surface IN, the sidewall 102 is perpendicular to the bottom plate 101, and the sidewall 102 is located at the edge of the bottom plate 101, so that the bottom plate 101 and the sidewall 102 form an accommodating space for placing the display panel 1 and the heat dissipation device 2.
The first casing 10 is located on one side of the display panel 1 away from the heat dissipation device, the first casing 10 is used for accommodating the display panel 1 and the heat dissipation device 2, the bottom plate 101 of the first casing 10 is provided with a hollow area 101a, and the display panel 1 is exposed by the hollow area 101a, so that the first casing 10 does not affect the light emission of the display panel 1.
In some alternative embodiments, with continued reference to fig. 8,
the air duct assembly 8 further includes a fixing rod 83, one end of the fixing rod 83 is fixed on the outer wall of the wind scooper 81, and the other end is fixed on the side wall 102.
It can be understood that, wind channel subassembly 8 can vibrate wind channel subassembly 8 when carrying the cold wind of subassembly 9 of blowing, because the other end of wind channel subassembly 8 is connected on the air-out subassembly, so the air-out subassembly also can vibrate, and the air-out subassembly is located display panel 1, can influence display panel 1's display performance when the air-out subassembly produces the vibration. The air duct assembly 8 is fixed on the side wall 102 of the bottom plate 101 through the fixing rod 83, so that the air duct assembly 8 can be fixed, and the influence of the vibration of the air duct assembly 8 on the normal display of the display panel 1 is avoided.
Alternatively, as shown in fig. 8, the number of the fixing rods 83 may be two, and the two fixing rods are fixed to the two side walls 102 opposite to the first casing 10, respectively, so as to further play a role of fixing the air duct assembly 8.
In some alternative embodiments, with continued reference to fig. 8, base plate 101 further includes a fastener 103 for securing motor assembly 41.
The fixing member 103 is used for fixing the motor assembly 41, and it can be understood that the rotating shaft of the motor assembly 41 generates vibration when rotating, which may cause the motor assembly 41 to displace, and the displacement of the motor assembly 41 may be prevented by the fixing action of the fixing member 103.
Of course, the bottom plate 101 further has a plurality of protrusions 103, the plurality of protrusions 103 define a fixing space, optionally, the protrusions 103 may be solid, and the blowing assembly 9 and the air duct assembly 8 have holes or grooves (not shown in the drawings) corresponding to the contour of the protrusions 103, and the protrusions 103 may be engaged with the protrusions 103 to fix the blowing assembly 9 and the air duct assembly 8 in the fixing space, so as to fix the blowing assembly 9 and the air duct assembly 8. Optionally, the protrusion 103 may be hollow and corresponding to the protrusion 103, and the blowing assembly 9 and the air duct assembly 8 have fixing posts arranged corresponding to the contour of the protrusion 103, and the fixing posts are inserted into the hollow of the protrusion 103 to engage the fixing posts with the protrusion 103, so that the blowing assembly 9 and the air duct assembly 8 can be fixed in the fixing space to fix the blowing assembly 9 and the air duct assembly 8.
In some alternative embodiments, with continued reference to fig. 8, the display device 100 further includes a second casing 20, the second casing 20 is located in a direction in which the heat dissipation device 2 is away from the first casing 10 in a direction perpendicular to a plane in which the display panel 1 is located, and the display panel 1 and the heat dissipation device 2 are located in an accommodating space formed by the first casing 10 and the second casing 20.
Optionally, the second casing 20 has a grille, and the air outlet 5 of the heat dissipation device 2 blows air to the heat generated by the display panel 1, so that the heat can be discharged out of the display device 100 through the grille.
Optionally, the second housing 20 may be made of metal.
The first casing 10 and the second casing 20 are vertically fastened to form an accommodating space, and the display panel 1 and the heat dissipation device 2 can be protected.
In some alternative embodiments, referring to fig. 9, fig. 9 is a schematic structural diagram of another display device provided in the present invention. The display device 100 further includes a detection unit 6, and when the detection unit 6 detects that the temperature of the position P in the display panel 1 is higher than the preset temperature range, the rotation shaft of the motor assembly 41 rotates by N degrees, so that the air outlet cools the position P.
The present embodiment only schematically shows one arrangement of the detection unit 6, and the detection unit 6 may be arranged on one side of the backlight surface of the display device 100 for detecting the temperature of any position in the display panel 1. Of course, the number of detecting units 6 in fig. 8 is not limited to the number of actual products, and the number of detecting units 6 may be set according to actual needs. The optional detection unit 6 may be a temperature sensor.
Of course, the preset temperature range may be 30-45 deg.c, and the rotation of the rotating shaft of the motor assembly 41 may be started when the temperature exceeds the preset temperature range.
In some optional embodiments, with reference to fig. 9, the detecting unit 6 detects the temperature of the position P, and when the temperature of the position P is within the preset temperature range, the air outlet stops blowing air.
In the process of heat dissipation of the position P, the detection unit 6 detects the temperature of the position P in real time, and after the air outlet of the heat dissipation device 2 dissipates the heat of the position P for a certain period of time, the temperature of the position P is within a preset temperature range, the air outlet stops discharging air, and it can be understood that the air blowing component 9 stops blowing air.
In this embodiment, the temperature of the position P is detected in real time by the detection unit 6, so that the position P is prevented from being cooled for a long time, and the reduction of energy consumption is facilitated.
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 (19)
1. A display device is characterized by comprising a display panel and a heat dissipation device, wherein the display panel comprises a light emitting surface and a backlight surface, the heat dissipation device is positioned on one side of the backlight surface, which is far away from the light emitting surface, and the heat dissipation device and the display panel are at least partially overlapped in a direction perpendicular to the light emitting surface;
the heat dissipation device comprises an air outlet assembly and a driving assembly;
the air outlet assembly comprises at least one air outlet, the driving assembly drives the air outlet to rotate, the air outlet assembly comprises a first state and a second state, the air outlet direction of the air outlet is a first direction in the first state, the air outlet direction of the air outlet is a second direction in the second state, the included angle between the first direction and the second direction is M, wherein M is larger than 0 degree and is less than or equal to 180 degrees, and the first direction and the second direction are both parallel to the plane where the display panel is located.
2. The display device according to claim 1, wherein the air outlet rotates around a first axis, so that an air outlet direction of the air outlet is switched between the first direction and the second direction, and the first axis is perpendicular to a plane of the display panel.
3. The display device according to claim 2, wherein the air outlet assembly has an accommodating space, and the air outlet assembly includes an upper surface, a lower surface and a side plate, the side plate is connected between the upper surface and the lower surface, and the upper surface and the lower surface form the accommodating space; the side plate can at least rotate around the upper surface, and the air outlet is formed in the side plate to form an air outlet ring.
4. The display device according to claim 3, wherein the driving assembly comprises a pulley, the pulley moves around an axis perpendicular to a plane of the display panel, and the pulley drives the wind-out ring to rotate.
5. The display device according to claim 4, wherein a plurality of first gears are disposed on an outer surface of the side plate facing away from the accommodating space, and a plurality of second gears are disposed on a side of the pulley facing the side plate, the first gears being engaged with the second gears.
6. The display device of claim 5, wherein the pulley encircles the side plate.
7. The display device according to claim 1, wherein the air outlet assembly further includes a baffle plate, the baffle plate is movable relative to the air outlet, the air outlet includes a first air outlet and a second air outlet, an air outlet direction of the first air outlet is the first direction, an air outlet direction of the second air outlet is the second direction, the baffle plate blocks the second air outlet in the first state, and the baffle plate blocks the first air outlet in the second state.
8. The display device according to claim 7, wherein the air outlet assembly comprises an air outlet ring, an orthographic projection of the air outlet ring on a plane of the display panel is annular, and the air outlet ring comprises a plurality of air outlets arranged in an annular direction.
9. The display device according to claim 8, wherein the driving assembly comprises a pulley, the pulley moves around an axis perpendicular to a plane of the display panel, the pulley engages with the barrier, and the pulley rotates the barrier.
10. The display device according to claim 4 or 9, wherein the driving assembly further comprises a motor assembly, one end of the pulley is engaged with the air outlet ring or the baffle, the motor assembly is located at the other end of the pulley, the motor assembly comprises a rotating shaft, the rotating shaft is engaged with the pulley, and the rotating shaft drives the pulley to rotate.
11. The display device of claim 10, wherein the pulley encircles the air exit ring;
the air outlet ring also comprises a first gear;
the inner wall of the belt wheel comprises a second gear, and the first gear is meshed with the second gear;
the rotating shaft of the motor assembly comprises a third gear;
the display panel is characterized by further comprising a transmission gear assembly, wherein the transmission gear assembly comprises a first portion and a second portion, the first portion and the second portion are fixedly connected in the direction perpendicular to the plane where the display panel is located, the first portion comprises a fourth gear, the second portion comprises a fifth gear, the fourth gear is meshed with the second gear, and the fifth gear is meshed with the third gear.
12. The display device according to claim 10, further comprising a blowing assembly and an air duct assembly, wherein the blowing assembly is located on a side of the air duct assembly away from the air outlet assembly;
one end of the air duct assembly is communicated with the air outlet assembly, and the other end of the air duct assembly is connected with the air blowing assembly, so that an air source with flowing power is provided for the air outlet assembly.
13. The display device of claim 12, wherein the air duct assembly comprises:
and one end of the air guide cover is connected with the blowing assembly, and the other end of the air guide cover is connected with the upper surface of the air outlet assembly and is used as a channel for transmitting an air source from the blowing assembly to the air outlet assembly.
14. The display device according to claim 12, further comprising a first housing, wherein the display panel and the heat sink are both located in the accommodating space of the first housing, the first housing includes a bottom plate and a sidewall, the sidewall is located at an edge of the bottom plate, and protrudes from the bottom plate along the light exit surface in a direction toward the backlight surface, the bottom plate includes a hollow area, and the display panel is exposed by the hollow area in a direction perpendicular to the light exit surface of the display panel.
15. The display device according to claim 14,
the air duct assembly further comprises a fixing rod, one end of the fixing rod is fixed on the outer wall of the air guide cover, and the other end of the fixing rod is fixed on the side wall.
16. The display device of claim 15, wherein the base plate further comprises a fixing member for fixing the motor assembly.
17. The display device according to claim 15, further comprising a second housing, wherein the second housing is located in a direction in which the heat sink is away from the first housing in a direction perpendicular to a plane in which the display panel is located, and the display panel and the heat sink are located in an accommodating space formed by the first housing and the second housing.
18. The display device according to claim 10, further comprising a detection unit, wherein when the detection unit detects that the temperature of the position P in the display panel is higher than a preset temperature range, the rotating shaft of the motor assembly rotates by N degrees, so that the air outlet cools the position P.
19. The display device according to claim 18, wherein the detection unit detects a temperature of the position P, and the air outlet stops blowing air when the temperature of the position P is within a preset temperature range.
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| CN202011449849.9A CN112466221B (en) | 2020-12-09 | 2020-12-09 | Display device |
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| CN202011449849.9A CN112466221B (en) | 2020-12-09 | 2020-12-09 | Display device |
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Cited By (1)
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| CN113189815A (en) * | 2021-05-11 | 2021-07-30 | 深圳市帝显电子有限公司 | Backlight heat radiation structure |
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| CN112466221B (en) | 2022-10-11 |
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