CN111724705A - Light-emitting module - Google Patents
Light-emitting module Download PDFInfo
- Publication number
- CN111724705A CN111724705A CN202010749556.6A CN202010749556A CN111724705A CN 111724705 A CN111724705 A CN 111724705A CN 202010749556 A CN202010749556 A CN 202010749556A CN 111724705 A CN111724705 A CN 111724705A
- Authority
- CN
- China
- Prior art keywords
- hole
- frame
- locking
- assembly
- emitting module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 17
- 210000003205 muscle Anatomy 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000000465 moulding Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to a light emitting module, comprising: the bearing frame is provided with a first surface and a second surface, the orientations of the first surface and the second surface are opposite, the bearing frame is provided with a heat dissipation hole, and the heat dissipation hole penetrates through the first surface and the second surface simultaneously. A lamp panel; the lamp plate sets up on the first surface. And the cover plate is connected with the bearing frame, and the second surface faces the cover plate. Because bearing and having seted up a plurality of louvres on the frame, through setting up the louvre, when the lamp plate work produced the heat, can improve thermal conduction speed, guarantee the heat and pass through this louvre express delivery transmission apron, and then make the apron again with heat fast transfer to external atmosphere, improve whole light-emitting module's heat dispersion.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a light-emitting module.
Background
An LED (Light Emitting Diode) display screen is used to display various information such as text, images, and video. The LED display screen integrates an electronic technology, a computer technology and an information processing technology, adopts a modular structure to perform display control, and changes the screen display contents such as characters, animations, pictures or videos by lightening or extinguishing lamp beads. The LED display screen has the advantages of bright color, wide dynamic range, high brightness, long service life, stable and reliable work and the like, thereby being widely applied to commercial media, cultural performance markets, stadiums, information dissemination, news distribution, security trading and the like and meeting the requirements of different environments.
The LED display screen includes a light emitting module, but the conventional light emitting module generally has a drawback of poor heat dissipation.
Disclosure of Invention
The invention solves the technical problem of how to improve the heat dissipation performance of the light-emitting module.
A lighting module, comprising: the bearing frame is provided with a first surface and a second surface, the directions of the first surface and the second surface are opposite, the bearing frame is provided with a heat dissipation hole, and the heat dissipation hole penetrates through the first surface and the second surface simultaneously;
a lamp panel; the lamp panel is arranged on the first surface; and
the cover plate is connected with the bearing frame, and the second surface faces the cover plate.
In one embodiment, the bearing frame is a plastic bearing frame, and the cover plate is an aluminum alloy cover plate.
In one embodiment, the lamp panel comprises a circuit board and a mask, and the mask is arranged on the surface of the circuit board, which faces away from the bearing frame; bear frame including first support column, second support column and first protruding muscle, first support column with the first surface is connected, first support column have with the first surface is towards the same connection face, the second support column with it is relative to connect the face and connect the face connection and relative connect the face protrusion, first protruding muscle is relative the global protrusion in side of second support column, the circuit board with connect face looks butt, the second support column with first protruding muscle is worn to establish and is used for fixing in the circuit board the face guard.
In one embodiment, the mask further comprises a fixing piece, wherein a fastening hole is formed in the second supporting column, and the fixing piece penetrates through the fastening hole and fixes the mask.
In one embodiment, the second supporting column is cylindrical, the number of the first ribs is two, and the radian of the side circumferential surface of the second supporting column between the two first ribs is 180 °.
In one embodiment, the bearing frame comprises a frame, a bottom plate and a second convex rib, the frame is arranged around the bottom plate, an accommodating cavity is formed by the frame and the bottom plate in an enclosing mode, the second convex rib is located in the accommodating cavity and protrudes relative to the inner surface of the frame, and a groove matched with the second convex rib is formed in the lamp panel.
In one embodiment, the anti-dropping device and the magnetic part are arranged on the cover plate, when the cover plate is carried on the frame, the magnetic part is magnetically connected with the frame, and the anti-dropping device is abutted to the frame.
In one embodiment, the anti-separation device comprises:
the base is provided with a sliding hole and a mounting hole which are communicated with each other, and the base is fixed on the cover plate;
the locking mechanism comprises a locking assembly and a first elastic piece, wherein a first guide hole is formed in the locking assembly, the locking assembly is in sliding fit with the sliding hole, and the first elastic piece is pressed between the base and the locking assembly; and
the unlocking mechanism comprises an unlocking assembly and a second elastic piece, the unlocking assembly is in sliding fit with the mounting hole and the first guide hole at the same time, and the second elastic piece is pressed between the base and the unlocking assembly;
the unlocking assembly is provided with a first station and a second station relative to the base, at least one part of the locking assembly stops sliding and can be abutted against the frame in the first station, and the locking assembly slides and stops abutting against the frame in the second station.
In one embodiment, the locking assembly comprises a limiting portion, a locking portion, a sleeve and a third elastic member, the first guide hole is formed in the limiting portion, the limiting portion is further formed with a second guide hole, the sleeve is connected with the limiting portion and covers the second guide hole, the locking portion is in sliding fit with the second guide hole and penetrates through the sleeve, and the third elastic member is pressed between the locking portion and the limiting portion; when the unlocking assembly is at a first station, the limiting part stops sliding, and the locking part can slide relative to the sliding hole and is abutted to the frame.
In one embodiment, the first guide hole comprises a first through hole, a second through hole and a stepped hole, the caliber of the stepped hole is larger than that of the first through hole, the first through hole and the second through hole are coaxially arranged, the second through hole is communicated with the first through hole, the central axes of the first through hole and the second through hole are arranged at intervals, the unlocking assembly is matched with the first through hole and is simultaneously abutted to the bottom wall and the side wall of the stepped hole in the first station, and the locking assembly can slide to enable the unlocking assembly to be matched with the second through hole in the second station.
One technical effect of one embodiment of the invention is that: bear and seted up a plurality of louvres on the frame, through setting up the louvre, when the lamp plate work produced the heat, can improve thermal conduction speed, guarantee the heat and pass through this louvre express delivery transmission apron, and then make the apron again with heat fast transfer to external atmosphere, improve whole light-emitting module's heat dispersion.
Drawings
Fig. 1 is a schematic perspective view illustrating an assembled structure of a display unit according to an embodiment;
FIG. 2 is an exploded view of the display unit shown in FIG. 1;
FIG. 3 is a schematic perspective view of a frame of the display unit shown in FIG. 1;
FIG. 4 is a schematic plan view of a frame of the display unit shown in FIG. 1;
FIG. 5 is a schematic perspective view of a-A of FIG. 4;
FIG. 6 is a schematic perspective view of a light emitting module in the display unit shown in FIG. 1;
fig. 7 is a schematic perspective view of the light emitting module shown in fig. 6 at another viewing angle;
FIG. 8 is a schematic view of an overall exploded structure of the light emitting module shown in FIG. 6;
FIG. 9 is a schematic diagram of a partially exploded structure of the light emitting module shown in FIG. 6;
FIG. 10 is an enlarged partial schematic view of FIG. 9;
FIG. 11 is a schematic perspective view of a carrier of the light emitting module shown in FIG. 6;
fig. 12 is a schematic perspective cross-sectional structure view of the light emitting module shown in fig. 6;
FIG. 13 is a schematic view of a first exemplary exploded structure of the anti-separation device in the light-emitting module shown in FIG. 6;
FIG. 14 is a second exploded view of the anti-separation device of the light-emitting module shown in FIG. 6;
FIG. 15 is a schematic perspective exploded sectional view of the anti-separation device shown in FIG. 13;
FIG. 16 is a schematic plan sectional view of the anti-separation device shown in FIG. 13;
FIG. 17 is a schematic sectional view of the anti-separation device shown in FIG. 13;
fig. 18 is a schematic perspective view of a limiting portion of the anti-falling device shown in fig. 13.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1, 2 and 3, an LED display screen according to an embodiment of the present invention includes a display unit 10 and a threaded fastener 20, where the number of the display unit 10 is at least two. The display unit 10 includes a frame 30 and a light emitting module 40, and the light emitting module 40 includes a magnetic member 80 and an anti-slip device 90.
Referring to fig. 4 and 5, in some embodiments, the frame 30 is a substantially rectangular ring structure, and the frame 30 includes four side plates 31, and the four side plates 31 are connected end to form a closed-loop structure. The frame 30 is provided with fixing holes 34 and connecting holes 35, for example, the fixing holes 34 are distributed on one pair of adjacent side plates 31, and the connecting holes 35 are distributed on the other pair of adjacent side plates 31. The threaded fastener 20 is arranged in the fixing hole 34 of one display unit 10 in a penetrating manner, the threaded fastener 20 is arranged in the connecting hole 35 of the other display unit 10 in a penetrating manner, and the display units 10 with small display areas can be spliced to form an LED display screen with large display areas through the connection of the threaded fastener 20.
If the splicing locking piece is used for splicing the display unit 10 to form the LED display screen, the structure of the splicing locking piece is complex, and the operation is complicated, so that the manufacturing cost and the assembly difficulty of the LED display screen are increased. And the display unit 10 is spliced only by the simple threaded fastener 20 in the above embodiment, and the threaded fastener 20 has a simple structure, is low in manufacturing cost and convenient to install, so that the manufacturing cost of the LED display screen can be reduced on one hand, and the assembly efficiency of the LED display screen can be improved on the other hand.
The threaded fastener 20 comprises a positioning section 21 and a fastening section 22, the cross-sectional dimension of the positioning section 21 is larger than that of the fastening section 22, and an external thread is arranged on the fastening section 22. The connecting hole 35 includes a wide hole 36 and a narrow hole 37, the diameter of the wide hole 36 is larger than that of the narrow hole 37, and an internal thread is provided in the narrow hole 37. When one part of the positioning section 21 of the threaded fastener 20 is inserted into the fixing hole 34 of one of the display units 10, the other part of the positioning section 21 is matched with the thick hole 36 on the other display unit 10, and the external thread on the fastening section 22 is used for matching with the internal thread in the thin hole 37 on the other display unit 10, so that the threaded fastener 20 finally realizes the splicing between the two display units 10. Because the bore of coarse pore 36 is greater than the bore of pore 37, and coarse pore 36 and pore 37 coaxial setting, when fastening section 22 and pore 37 cooperation, location section 21 can be with coarse pore 36's diapire looks butt to carry out fine location to whole threaded fastener 20.
The frame 30 further comprises a cross beam 32 and a projection 33, the cross beam 32 is connected between the two oppositely disposed side plates 31, the number of the projections 33 can be multiple, wherein a part of the projections 33 is disposed on the cross beam 32, and another part of the projections 33 is disposed on the two side plates 31 disposed in parallel with the cross beam 32, obviously, the two parallel side plates 31 are disposed at intervals with the cross beam 32. The projection 33 is located in the space enclosed by the cross beam 32 and the side plate 31.
The light emitting module 40 has a mounting surface, which is a back surface of the light emitting module 40, so that the mounting surface faces away from a light emitting direction of the light emitting module 40, the magnetic member 80 and the anti-falling device 90 are both disposed on the mounting surface, and the number of the magnetic member 80 and the anti-falling device 90 may be plural. When the light emitting module 40 is assembled with the frame 30 to form the display unit 10, the mounting surface is supported on the frame 30, the magnetic member 80 is magnetically connected to the frame 30, and the anti-slip device 90 abuts against the protrusion 33. If the light emitting module 40 is fixed to the frame 30 only through the magnetic attraction, under the action of the external impact, the larger impact will overcome the magnetic attraction and cause the light emitting module 40 to drop from the frame 30, which is not favorable for the stability of the connection between the light emitting module 40 and the frame 30. In the above embodiment, by adding the anti-falling device 90 and the protrusion 33, in addition to the light-emitting module 40 and the frame 30 being fixed by the magnetic attraction, in view of the interference effect generated by the abutment of the anti-falling device 90 and the protrusion 33, the light-emitting module 40 and the frame 30 can be fixed by the abutting force, so that the light-emitting module 40 cannot be separated from the frame 30 and slide off from the frame 30, thereby improving the stability of the connection between the light-emitting module 40 and the frame 30.
Referring to fig. 6 and 7, in some embodiments, the light module 40 further includes a lamp panel 50, a carrier 60, and a cover plate 70. Referring to fig. 8 and 11, the bearing frame 60 has a first surface 621 and a second surface 622, the first surface 621 and the second surface 622 face opposite directions, the bearing frame 60 is provided with heat dissipation holes 623, the heat dissipation holes 623 are through holes penetrating through the first surface 621 and the second surface 622 simultaneously, the number of the heat dissipation holes 623 can be multiple, and the heat dissipation holes 623 can be arranged on the bearing frame 60 in a matrix form. The cover plate 70 is coupled to the carrier 60 such that the second surface 622 is disposed toward the cover plate 70, and the mounting surface is located on the cover plate 70, so that the magnetic member 80 and the anti-slip device 90 are both disposed on the cover plate 70.
Referring to fig. 8, 9 and 10, in particular, the lamp panel 50 includes a circuit board 51, a mask 52 and a lamp bead 53. The circuit board 51 is disposed on the first surface 621 such that the first surface 621 is disposed toward the circuit board 51. The face guard 52 is arranged on the surface of the circuit board 51, which faces away from the bearing frame 60, the lamp beads 53 are arranged in the face guard 52 in a penetrating mode, and the face guard 52 can protect the lamp beads 53. Bear frame 60 includes frame 61, bottom plate 62, first support column 63, second support column 64, first protruding muscle 65 and second protruding muscle 67, and frame 61 encircles the setting of bottom plate 62, and frame 61 encloses into with bottom plate 62 and accepts the chamber, and at least part of lamp plate 50 can be acceptd in this accepts the chamber. The first surface 621 and the second surface 622 are located on the bottom plate 62, so that the heat dissipation holes 623 are opened on the bottom plate 62.
Referring to fig. 10 and 11, the first support column 63 is connected to the first surface 621, the first support column 63 has a connection surface, the connection surface is disposed away from the first surface 621, the connection surface and the first surface 621 have the same orientation, and the first support column 63 protrudes a certain height relative to the first surface 621. A second support column 64 is connected to the connection surface, the second support column 64 projecting a certain height relative to the connection surface. The first rib 65 is connected to the second support column 64, the second support column 64 may be cylindrical, and the first rib 65 protrudes a certain height in a radial direction with respect to a side circumferential surface of the second support column 64. In the mounting process, the circuit board 51 abuts against the connecting surface, that is, the connecting surface can play a certain bearing role for the circuit board 51, and meanwhile, the first rib 65 and the second supporting column 64 penetrate through the circuit board 51. The second supporting post 64 is provided with a fastening hole 66, and the light emitting module 40 may further include a fixing member, such as a screw, which can fix the mask 52 on the carrier 60 when the fixing member is inserted into the fastening hole 66.
By arranging the first ribs 65 on the second supporting columns 64, the structural strength of the second supporting columns 64 can be enhanced, the second supporting columns 64 are prevented from being broken, and the connecting strength between the mask 52 and the carrier 60 is improved. The number of the first ribs 65 may be two, and the radian of the side circumferential surface of the second supporting column 64 located between the two first ribs 65 is 180 °, that is, the two first ribs 65 form a straight structure. Of course, the number of the first ribs 65 may be four, and the radian of the side circumferential surface of the second supporting column 64 located between two adjacent first ribs 65 is 90 °, that is, the four first ribs 65 form a cross-shaped structure.
The relative internal surface protrusion of frame 61 of second protruding muscle 67, second protruding muscle 67 are located and accept the chamber and extend along the thickness direction of lamp plate 50, and the quantity of second protruding muscle 67 is a plurality of, and a plurality of second protruding muscle 67 set up along the circumference interval of frame 61. Be provided with recess 54 on lamp plate 50, at the installation, this recess 54 and the cooperation of second protruding muscle 67 on lamp plate 50. The carrier 60 may be a plastic carrier, i.e. the carrier 60 is made of plastic material, and the carrier 60 may be formed by injection molding. Because the thickness of the frame 61 is thin, the volume of the cavity for molding the frame 61 by the mold is small, so that the flow resistance of the molten injection molding liquid in the cavity with the small volume is increased, the molten injection molding liquid cannot be filled in the whole cavity for molding the frame 61, and a plurality of notches can appear on the cured frame 61, so that the molding quality of the bearing frame 60 is influenced. For the above embodiment, by arranging the second rib 67 on the frame 61, the volume of the mold cavity for molding the frame 61 can be increased on the first hand, so that the flow resistance of the molten injection molding liquid in the cavity with a large volume is reduced, the molten injection molding liquid is ensured to be filled in the whole cavity for molding the frame 61, a notch is prevented from appearing on the molded frame 61, and the molding quality of the frame 61 is improved. The second aspect can improve the structural strength of the frame 61 and prevent the frame 61 from being deformed during installation.
The cover plate 70 may be an aluminum alloy cover plate 70, that is, the cover plate 70 is made of an aluminum alloy material, so that the cover plate 70 has a good heat conduction performance. Meanwhile, a plurality of heat dissipation holes 623 are formed in the bottom plate 62 of the bearing frame 60, and through the arrangement of the heat dissipation holes 623, when the lamp panel 50 works to generate heat, the heat conduction performance can be improved, the heat is enabled to be quickly transmitted to the cover plate 70 through the heat dissipation holes 623, and then the cover plate 70 is enabled to quickly transmit the heat to the external atmosphere, so that the heat dissipation performance of the whole light emitting module 40 is improved.
In some embodiments, the anti-disengagement device 90 includes a base 100, a lock mechanism 200, and an unlocking mechanism 300. The base 100 can be fixed on the mounting surface of the cover plate 70 by means of bolt connection, a sliding hole 110 and a mounting hole 120 are formed in the base 100, the sliding hole 110 extends along the horizontal direction, and the mounting hole 120 extends along the vertical direction.
Referring to fig. 13, 14 and 15, the locking mechanism 200 includes a locking assembly 201 and a first elastic member 202, the locking assembly 201 is horizontally disposed and has a first guiding hole 240, the first guiding hole 240 extends along a vertical direction, the locking assembly 201 is slidably engaged with the sliding hole 110, the first elastic member 202 may be a cylindrical spring, and the first elastic member 202 is pressed between the base 100 and the locking assembly 201. Specifically, the locking assembly 201 includes a position-limiting portion 210, a locking portion 220, a sleeve 230 and a third elastic member 260, wherein the position-limiting portion 210 and the locking portion 220 are slidably engaged with the slide hole 110. The first guide hole 240 is formed in the position-limiting portion 210, the position-limiting portion 210 is further formed with a second guide hole 250, the second guide hole 250 extends in the horizontal direction, and the sleeve 230 is connected with the position-limiting portion 210, for example, the position-limiting portion 210 is matched with a cavity of the sleeve 230, that is, the sleeve 230 is sleeved on the position-limiting portion 210, so that the sleeve 230 forms a certain covering effect on an opening of the second guide hole 250. The sleeve 230 is provided with a through hole 231, the locking portion 220 is slidably fitted with the second guide hole 250 and is inserted into the through hole 231 of the sleeve 230, the third elastic member 260 can be a cylindrical spring, etc., and the third elastic member 260 is accommodated in the second guide hole 250, so that the third elastic member 260 is pressed between the limiting portion 210 and the locking portion 220. When the locking portion 220 slides close to the position-limiting portion 210, the third elastic member 260 is compressed to store energy, and when the locking portion 220 slides away from the position-limiting portion 210, the third elastic member 260 is extended to release energy.
The locking portion 220 includes a boss section 221, a guide section 222 and a pressing section 223 connected to each other, and the guide section 222 is connected between the boss section 221 and the pressing section 223. The guiding section 222 and the pressing section 223 may be separately connected, for example, they may be fixed by a detachable connection manner such as a threaded connection, so as to facilitate the assembly of the locking portion 220 and the base 100, and the guiding section 222 and the boss section 221 may be integrally formed. The boss section 221 is matched with the second guide hole 250, the guide section 222 is matched with the through hole 231, the pressing section 223 is matched with the slide hole 110, the cross section size of the boss section 221 is larger than that of the guide section 222, of course, the cross section sizes of the boss section 221 and the pressing section 223 are also larger than that of the through hole 231, and the calibers (cross section sizes) of the slide hole 110 and the second guide hole 250 are also larger than that of the through hole 231. Therefore, when the locking portion 220 slides away from the position-limiting portion 210 to make the boss section 221 abut against the sleeve 230, the locking portion 220 slides away from the position-limiting portion 210 to the limit position; when the locking portion 220 slides close to the position-limiting portion 210 to make the abutting section 223 abut against the sleeve 230, the locking portion 220 slides close to the position-limiting portion 210 to the limit position.
The abutting section 223 has a guide surface 223a and an abutting surface 223b, the abutting surface 223b is horizontally disposed so that the abutting surface 223b is parallel to the central axis of the slide hole 110, and the abutting surface 223b is used for abutting against the surface of the projection 33 on the frame 30. The guide surface 223a is obliquely disposed, and the central axis of the slide hole 110 intersects the guide surface 223a at an acute angle, so that the abutment surface 223b intersects the guide surface 223a at an acute angle as well. In the process of assembling the light emitting module 40 with the frame 30, when a force is applied to the light emitting module 40 in the thickness direction of the display unit 10 to make the light emitting module 40 adhere to the frame 30, the guide surface 223a abuts against the bump 33 on the frame 30, so that the bump 33 pushes the whole locking portion 220 to slide close to the limiting portion 210, thereby providing a space required for avoiding the assembling, in the process of the abutting section 223 moving relative to the bump 33, at the moment when the bump 33 moves from one end of the guide surface 223a to the other end and disengages from the guide surface 223a, the third elastic member 260 releases energy, and the locking portion 220 slides away from the limiting portion 210, so that the abutting surface 223b adheres to the surface of the bump 33. After the abutting surface 223b abuts against the bump 33, when a force is applied to the light-emitting module 40 along the thickness direction of the display unit 10 to make the light-emitting module 40 away from the frame 30, the light-emitting module 40 cannot be separated from the frame 30 due to interference generated by the abutting surface 223b and the bump 33 abutting against each other, so that the stability of connection between the light-emitting module 40 and the frame 30 is improved.
Referring to fig. 14, 17 and 18, the position-limiting portion 210 includes a matching section 211 and a protruding section 212, and the matching section 211 and the protruding section 212 may be integrally formed. The first guide hole 240 and the second guide hole 250 are opened on the fitting section 211, the protruding section 212 is connected with the end of the fitting section 211, and the cross-sectional size of the protruding section 212 is larger than that of the fitting section 211, so that the edge portion of the protruding section 212 protrudes a certain height relative to the fitting section 211. The fitting section 211 is slidably fitted to the slide hole 110, and the protruding section 212 is located outside the slide hole 110. The first elastic element 202 is disposed on the mating segment 211, and the first elastic element 202 can store energy and press against the base 100 and the protruding segment 212.
The first guide hole 240 includes a first through hole 241, a second through hole 242, and a stepped hole 243, and the bore of the stepped hole 243 may be greater than the bores of both the first through hole 241 and the second through hole 242. The stepped hole 243 and the first through hole 241 may be coaxially disposed. The second through hole 242 and the first through hole 241 are communicated with each other and the central axes thereof are spaced apart from each other.
In some embodiments, the unlocking mechanism 300 includes an unlocking component 301 and a second elastic member 302, wherein the unlocking component 301 is simultaneously in sliding fit with the mounting hole 120 and the first guiding hole 240, and the second elastic member 302 is pressed between the base 100 and the unlocking component 301. The unlocking assembly 301 is vertically arranged, the unlocking assembly 301 comprises a first stage 310, a second stage 320 and a third stage 330, and the second stage 320 is connected between the first stage 310 and the third stage 330. The first stage 310 may be integrally formed with the second stage 320 and the third stage 330 may be threadably coupled to the second stage 320 to enable a removable coupling between the third stage 330 and the second stage 320 to unlock the assembly 301 to the base 100. The cross-sectional dimensions of both the first stage 310 and the third stage 330 are larger than the cross-sectional dimension of the second stage 320, the first stage 310 can be inserted into the mounting hole 120 and fit into the stepped hole 243, and the second stage 320 can fit into the first through hole 241 and the second through hole 242. The cross-sectional dimension of the first stage 310 is larger than the cross-sectional dimensions (caliber) of the first through hole 241 and the second through hole 242, and when the unlocking assembly 301 slides, the first stage 310 cannot enter the first through hole 241 or the second through hole 242, so that when the first stage 310 abuts against the bottom wall of the stepped hole 243 and the unlocking assembly 301 stops sliding downwards, the bottom wall of the stepped hole 243 limits the limit distance of downward sliding of the unlocking assembly 301.
The mounting hole 120 further includes a large hole 121 and a small hole 122 coaxially disposed, the small hole 122 is disposed near the sliding hole 110 and is communicated with the sliding hole 110, obviously, the caliber of the large hole 121 is larger than that of the small hole 122, the third stage 330 is matched with the large hole 121, and the second stage 320 is matched with the small hole 122. The second elastic member 302 may be a cylindrical spring, etc., the second elastic member 302 is located in the large hole 121 and sleeved on the second stage 320, and the second elastic member 302 is pressed between the third stage 330 and the bottom wall of the large hole 121. The cross-sectional dimension of the third stage 330 is larger than the cross-sectional dimension (caliber) of the small hole 122 so that the third stage 330 cannot slide from the large hole 121 into the small hole 122. When the third stage 330 abuts the bottom wall of the large hole 121, the entire unlocking assembly 301 stops sliding upward, and the bottom wall of the large hole 121 defines the limit distance for the unlocking assembly 301 to slide upward.
Referring to fig. 12 and 16, the lamp panel 50 of the light emitting module 40 is further provided with a jack 55, and the jack 55 is communicated with the large hole 121. When a tool is inserted into the large hole 121, a compressive force may be applied to the third stage 330 such that the first stage 310 moves away from the large hole 121 while the second resilient member 302 compresses and stores energy.
Referring to fig. 16, the unlocking assembly 301 slides relative to the base 100 to have a first station and a second station. When it is desired to assemble the light module 40 to the frame 30, the unlocking assembly 301 may be first positioned relative to the base 100 in a first position. For the unlocking assembly 301 at the first station, the second stage 320 is engaged with the first through hole 241, a portion of the first stage 310 is engaged with the stepped hole 243, and another portion of the first stage 310 is engaged with the mounting hole 120. At this time, under the action of the second elastic member 302, the second elastic member 302 applies a pushing force to the third stage 330, so that the first stage 310 abuts against the bottom wall of the stepped hole 243. Meanwhile, the first step 310 is in contact with the stepped hole 243 and the sidewall of the stepped hole 243, and the stopper 210 cannot move left and right in the slide hole 110 due to the interference effect generated by the contact of the first step 310 with the sidewall of the stepped hole 243. Then, applying an acting force to the light emitting module 40 to make the light emitting module 40 tightly attach to the frame 30, so that the guide surface 223a of the pressing section 223 is pressed against the protrusion 33 on the frame 30, and in the process that the pressing section 223 moves relative to the protrusion 33, the pressing section 223 slides close to the limiting portion 210 and makes the third elastic member 260 store energy; at the moment when the bump 33 is separated from the guiding surface 223a, the third elastic member 260 releases energy, so that the pressing section 223 slides away from the limiting portion 210 until the bump section 221 presses against the sleeve 230, and the contact surface 223b is ensured to be attached to the surface of the bump 33. When the abutting surface 223b abuts against the bump 33, the whole anti-slip device 90 is in a locked state, and the light-emitting module 40 cannot be separated from the frame 30 due to interference caused by the abutting surface 223b and the bump 33 abutting against each other.
When the light emitting module 40 needs to be detached from the frame 30, firstly, a tool is inserted into the insertion hole 55 of the lamp panel 50, so that the end of the tool exerts a pressing force on the third stage 330, and the entire unlocking assembly 301 moves upward against the elastic force of the second elastic member 302, and when the first stage 310 moves upward to be disengaged from the stepped hole 243, the entire unlocking assembly 301 is at the second station relative to the base 100. When the unlocking assembly 301 is located at the second station, the first stage 310 will release the interference caused by the abutment with the sidewall of the stepped hole 243, and the first elastic element 202 will release energy to push the limiting portion 210 to slide rightward relative to the base 100, so that the first stage 310 is separated from the first through hole 241 and is engaged with the second through hole 242. Since the position-limiting portion 210 slides rightwards for a certain distance relative to the base 100, the pressing section 223 will also slide rightwards for a certain distance to separate from the protrusion 33, so as to eliminate the interference of the protrusion 33 on the whole anti-falling device 90, and the light-emitting module 40 can be unloaded from the frame 30 by overcoming the magnetic attraction force.
In other embodiments, the third elastic member 260 and the guide surface 223a may be omitted, so that the entire locking portion 220 is fixedly connected with the position-limiting portion 210. When the light module 40 needs to be assembled with the frame 30, referring to the above assembly method, first, the unlocking assembly 301 is located at the second station, and the whole light module 40 is carried on the frame 30. Then, the locking assembly 201 is slid leftward by force against the first elastic member 202 until the abutting surface 223b is adhered to the surface of the projection 33. In the process that the locking assembly 201 slides leftward, when the first stage 310 is engaged with the first through hole 241, under the action of the second elastic element 302, the unlocking assembly 301 automatically slides downward, so that the first stage 310 is engaged with the stepped hole 243, and the first stage 310 is ensured to abut against the side wall of the stepped hole 243 to generate an interference effect, at this time, the unlocking assembly 301 is located at the first station, the locking assembly 201 is prevented from moving in the sliding hole 110, and the whole anti-falling device 90 is in a locked state, so as to prevent the light emitting module 40 from falling off the frame 30. When the light emitting module 40 needs to be detached from the frame 30, the detachment method is the same as the above detachment method, and reference may be made to the basic operation of the above detachment method, which is not described herein again.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A light emitting module, comprising:
the bearing frame is provided with a first surface and a second surface, the directions of the first surface and the second surface are opposite, the bearing frame is provided with a heat dissipation hole, and the heat dissipation hole penetrates through the first surface and the second surface simultaneously;
a lamp panel; the lamp panel is arranged on the first surface; and
the cover plate is connected with the bearing frame, and the second surface faces the cover plate.
2. The lighting module of claim 1, wherein the carrier is a plastic carrier, and the cover is an aluminum alloy cover.
3. The lighting module of claim 1, wherein the lamp panel comprises a circuit board and a mask, and the mask is disposed on a surface of the circuit board facing away from the carrier; bear frame including first support column, second support column and first protruding muscle, first support column with the first surface is connected, first support column have with the first surface is towards the same connection face, the second support column with it is relative to connect the face and connect the face connection and relative connect the face protrusion, first protruding muscle is relative the global protrusion in side of second support column, the circuit board with connect face looks butt, the second support column with first protruding muscle is worn to establish and is used for fixing in the circuit board the face guard.
4. The lighting module of claim 3, further comprising a fixing member, wherein the second support post is provided with a fastening hole, and the fixing member is inserted into the fastening hole and fixes the mask.
5. The lighting module of claim 3, wherein the second supporting pillar is cylindrical, the number of the first ribs is two, and the radian of the side circumference of the second supporting pillar between the two first ribs is 180 °.
6. The lighting module of claim 1, wherein the supporting frame includes a frame, a bottom plate, and a second rib, the frame is disposed around the bottom plate, the frame and the bottom plate form an accommodating cavity, the second rib is disposed in the accommodating cavity and protrudes relative to an inner surface of the frame, and a groove matched with the second rib is disposed on the lamp panel.
7. The lighting module of claim 1, further comprising an anti-separation device and a magnetic member, wherein the anti-separation device and the magnetic member are both disposed on the cover plate, when the cover plate is carried on the frame, the magnetic member is magnetically connected to the frame, and the anti-separation device abuts against the frame.
8. The lighting module of claim 7, wherein the anti-separation device comprises:
the base is provided with a sliding hole and a mounting hole which are communicated with each other, and the base is fixed on the cover plate;
the locking mechanism comprises a locking assembly and a first elastic piece, wherein a first guide hole is formed in the locking assembly, the locking assembly is in sliding fit with the sliding hole, and the first elastic piece is pressed between the base and the locking assembly; and
the unlocking mechanism comprises an unlocking assembly and a second elastic piece, the unlocking assembly is in sliding fit with the mounting hole and the first guide hole at the same time, and the second elastic piece is pressed between the base and the unlocking assembly;
the unlocking assembly is provided with a first station and a second station relative to the base, at least one part of the locking assembly stops sliding and can be abutted against the frame in the first station, and the locking assembly slides and stops abutting against the frame in the second station.
9. The light-emitting module according to claim 8, wherein the locking assembly comprises a limiting portion, a locking portion, a sleeve and a third elastic member, the first guide hole is formed in the limiting portion, the limiting portion is further formed with a second guide hole, the sleeve is connected with the limiting portion and covers the second guide hole, the locking portion is slidably fitted with the second guide hole and penetrates through the sleeve, and the third elastic member is pressed between the locking portion and the limiting portion; when the unlocking assembly is at a first station, the limiting part stops sliding, and the locking part can slide relative to the sliding hole and is abutted to the frame.
10. The lighting module of claim 8, wherein the first guiding hole comprises a first through hole, a second through hole and a stepped hole, the diameter of the stepped hole is larger than that of the first through hole and the second through hole are coaxially arranged, the second through hole is communicated with the first through hole and the central axes of the second through hole and the first through hole are arranged at intervals, the unlocking assembly is matched with the first through hole and is simultaneously abutted against the bottom wall and the side wall of the stepped hole in a first working position, and the locking assembly can slide to enable the unlocking assembly to be matched with the second through hole in a second working position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010749556.6A CN111724705B (en) | 2020-07-30 | 2020-07-30 | Light-emitting module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010749556.6A CN111724705B (en) | 2020-07-30 | 2020-07-30 | Light-emitting module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111724705A true CN111724705A (en) | 2020-09-29 |
| CN111724705B CN111724705B (en) | 2024-08-16 |
Family
ID=72574034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010749556.6A Active CN111724705B (en) | 2020-07-30 | 2020-07-30 | Light-emitting module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111724705B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111951695A (en) * | 2020-07-30 | 2020-11-17 | 利亚德智慧显示(深圳)有限公司 | Anti-falling device, light-emitting module and display unit |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203038591U (en) * | 2012-12-17 | 2013-07-03 | 深圳市易事达电子股份有限公司 | Lock catch structure of light-emitting diode (LED) display screen die set easy to mount and dismount |
| CN204332282U (en) * | 2014-12-16 | 2015-05-13 | 深圳市奥拓电子股份有限公司 | LED display |
| CN109509405A (en) * | 2018-12-28 | 2019-03-22 | 深圳市奥拓电子股份有限公司 | LED display |
| CN110060579A (en) * | 2019-03-07 | 2019-07-26 | 深圳市奥拓电子股份有限公司 | LED display module and LED mosaic display screen |
| CN209776527U (en) * | 2019-03-29 | 2019-12-13 | 珠海阳光儿童用品有限公司 | Baby carriage locking device and baby carriage |
| CN110610671A (en) * | 2019-10-25 | 2019-12-24 | 深圳集简设计有限公司 | Installation hasp and display screen module |
| CN110675764A (en) * | 2019-10-24 | 2020-01-10 | 惠州市科伦特智能科技有限公司 | Anti-falling structure of LED display screen |
| CN210039500U (en) * | 2019-07-18 | 2020-02-07 | 深圳市洲明科技股份有限公司 | Module drain pan, LED display module assembly and LED display screen |
| CN110942728A (en) * | 2019-11-29 | 2020-03-31 | 深圳市大族元亨光电股份有限公司 | LED display module and display screen |
| CN111292630A (en) * | 2020-02-27 | 2020-06-16 | 深圳市德豪显示照明科技有限公司 | Lock catch and display screen |
| CN111724694A (en) * | 2020-07-30 | 2020-09-29 | 利亚德智慧显示(深圳)有限公司 | Display screen |
| CN111951695A (en) * | 2020-07-30 | 2020-11-17 | 利亚德智慧显示(深圳)有限公司 | Anti-falling device, light-emitting module and display unit |
| CN212342202U (en) * | 2020-07-30 | 2021-01-12 | 利亚德智慧显示(深圳)有限公司 | Light-emitting module |
-
2020
- 2020-07-30 CN CN202010749556.6A patent/CN111724705B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203038591U (en) * | 2012-12-17 | 2013-07-03 | 深圳市易事达电子股份有限公司 | Lock catch structure of light-emitting diode (LED) display screen die set easy to mount and dismount |
| CN204332282U (en) * | 2014-12-16 | 2015-05-13 | 深圳市奥拓电子股份有限公司 | LED display |
| CN109509405A (en) * | 2018-12-28 | 2019-03-22 | 深圳市奥拓电子股份有限公司 | LED display |
| CN110060579A (en) * | 2019-03-07 | 2019-07-26 | 深圳市奥拓电子股份有限公司 | LED display module and LED mosaic display screen |
| CN209776527U (en) * | 2019-03-29 | 2019-12-13 | 珠海阳光儿童用品有限公司 | Baby carriage locking device and baby carriage |
| CN210039500U (en) * | 2019-07-18 | 2020-02-07 | 深圳市洲明科技股份有限公司 | Module drain pan, LED display module assembly and LED display screen |
| CN110675764A (en) * | 2019-10-24 | 2020-01-10 | 惠州市科伦特智能科技有限公司 | Anti-falling structure of LED display screen |
| CN110610671A (en) * | 2019-10-25 | 2019-12-24 | 深圳集简设计有限公司 | Installation hasp and display screen module |
| CN110942728A (en) * | 2019-11-29 | 2020-03-31 | 深圳市大族元亨光电股份有限公司 | LED display module and display screen |
| CN111292630A (en) * | 2020-02-27 | 2020-06-16 | 深圳市德豪显示照明科技有限公司 | Lock catch and display screen |
| CN111724694A (en) * | 2020-07-30 | 2020-09-29 | 利亚德智慧显示(深圳)有限公司 | Display screen |
| CN111951695A (en) * | 2020-07-30 | 2020-11-17 | 利亚德智慧显示(深圳)有限公司 | Anti-falling device, light-emitting module and display unit |
| CN212342202U (en) * | 2020-07-30 | 2021-01-12 | 利亚德智慧显示(深圳)有限公司 | Light-emitting module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111951695A (en) * | 2020-07-30 | 2020-11-17 | 利亚德智慧显示(深圳)有限公司 | Anti-falling device, light-emitting module and display unit |
| CN111951695B (en) * | 2020-07-30 | 2024-08-16 | 利亚德智慧显示(深圳)有限公司 | Anti-drop device, light-emitting module and display unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111724705B (en) | 2024-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212342203U (en) | Anti-falling device, light-emitting module and display unit | |
| CN111951695A (en) | Anti-falling device, light-emitting module and display unit | |
| CN111724694A (en) | Display screen | |
| US10337718B2 (en) | Light emitting diode lighting device and assembly method thereof | |
| CN109584730B (en) | Spliced display screen | |
| US8388172B2 (en) | LED lamp | |
| CN212342202U (en) | Light-emitting module | |
| CN213339453U (en) | Display screen | |
| CN111724705A (en) | Light-emitting module | |
| CN111107719B (en) | LED box and LED display screen | |
| CN105842913B (en) | Display device | |
| CN111028701B (en) | LED display screen | |
| CN212342200U (en) | Display screen | |
| KR20150050011A (en) | the multidirectional lighting module for implementing multi colored and the electronic device having the same | |
| CN206719568U (en) | Fixing device and unmanned plane | |
| CN112053638A (en) | Control device and display screen | |
| CN107103845B (en) | Spliced display screen | |
| CN111667780A (en) | Display screen | |
| KR20200039366A (en) | Display apparatus | |
| US20200234615A1 (en) | Sign having a reconfigurable display face | |
| CN213751730U (en) | Fixing mechanism and LED display screen | |
| CN108154808B (en) | LED display module | |
| CN115064087B (en) | Mounting lock and display screen | |
| CN210925314U (en) | Display unit and LED display screen | |
| CN216013916U (en) | Mounting structure and lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |