CN115453789B - Multi-area light control MINI LED backlight module - Google Patents

Multi-area light control MINI LED backlight module Download PDF

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Publication number
CN115453789B
CN115453789B CN202211313397.0A CN202211313397A CN115453789B CN 115453789 B CN115453789 B CN 115453789B CN 202211313397 A CN202211313397 A CN 202211313397A CN 115453789 B CN115453789 B CN 115453789B
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CN
China
Prior art keywords
fixedly connected
pcb
bottom plate
led lamp
pcb board
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Active
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CN202211313397.0A
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Chinese (zh)
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CN115453789A (en
Inventor
徐贤强
姜发明
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Shenzhen Australis Electronic Technology Co Ltd
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Shenzhen Australis Electronic Technology Co Ltd
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Priority to CN202211313397.0A priority Critical patent/CN115453789B/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133612—Electrical details
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133628—Illuminating devices with cooling means
    • 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
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
    • H05K1/0203—Cooling of mounted components
    • 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
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/11—Printed elements for providing electric connections to or between printed circuits
    • H05K1/115—Via connections; Lands around holes or via connections
    • H05K1/116—Lands, clearance holes or other lay-out details concerning the surrounding of a via

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

The invention discloses a multi-region light control MINI LED backlight module, and relates to the technical field of backlight modules. This multizone accuse light MINI LED backlight unit, including bottom plate and the shell of setting on the bottom plate, fixedly connected with PCB board on the opposite one side of bottom plate and shell, fixedly connected with film body on the PCB board is provided with the LED lamp pearl on the PCB board, and the PCB board is provided with supports fixed establishment, fixedly connected with conducting strip between PCB board and the bottom plate. This multizone accuse light MINI LED backlight unit, the fixed plate is fixed the loading board, fixes it through fixed plate and spacing frame and to it, and flexible piece is to its support, consequently make the LED lamp pearl when welding through pin and PCB board, do not need the manual work to hold the location to the LED lamp pearl, consequently improve welding efficiency, ensure the accuracy of welding position simultaneously, have great clearance between LED lamp pearl and the PCB board simultaneously, consequently improve the radiating efficiency of PCB board and LED lamp pearl.

Description

Multi-area light control MINI LED backlight module
Technical Field
The invention relates to the technical field of backlight modules, in particular to a multi-area light control MINI LED backlight module.
Background
Mini LED is defined as: with the rapid development of Mini LED display technology, the LED display product of the Mini has been applied to super-large screen high definition display, such as monitoring command, high definition studio, high-end cinema, medical diagnosis, advertisement display, conference, office display, virtual reality and other commercial fields.
According to the related literature of inquiry, the Mini LED lamp beads on the backlight module are known, when the Mini LED lamp beads are welded with the backlight power panel, the welding positions of the hand-held Mini LED lamp beads and the backlight power panel are usually needed to be butted manually, the welding points are easy to deviate, the Mini LED lamp beads are supported by the pins, the inclination phenomenon is easy to produce, and the Mini LED lamp beads are easy to break away from the backlight power panel under the influence of external force, so that the normal use of the backlight module is influenced.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a multi-area light control MINI LED backlight module which can solve the problem that welding points are easily deviated due to the mode that welding points are manually butted at welding positions of hand-held Mini LED lamp beads and a backlight power panel.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a multi-region accuse light MINI LED backlight unit, includes the bottom plate and sets up the shell on the bottom plate, fixedly connected with PCB board on the opposite one side of bottom plate and shell, fixedly connected with film body on the PCB board is provided with the LED lamp pearl on the PCB board, and the PCB board is provided with supports fixed establishment, fixedly connected with conducting strip between PCB board and the bottom plate.
Preferably, the bottom plate is provided with a fixing groove, the inner wall of the fixing groove is provided with a clamping groove, the lower surface of the shell is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with a triangular clamping block, and the clamping block is mutually matched with the clamping groove.
Preferably, the bottom plate is provided with a heat dissipation hole, the heat conduction column is fixedly connected to the inside of the heat dissipation hole, the heat conduction column is mutually attached to the heat conduction sheet, one end of the heat conduction column, which is not contacted with the heat conduction sheet, is fixedly connected with the heat dissipation column, and the diameter of the heat conduction column is twice that of the heat dissipation column.
Preferably, the support fixing mechanism comprises a limiting frame which is fixedly connected to the PCB and is n-shaped, two rotating grooves are formed in the PCB, fixing plates which are in inverted L shapes are arranged in the rotating grooves, supporting blocks are fixedly connected to one sides of the two opposite fixing plates and the inside of the limiting frame, telescopic blocks are fixedly connected to the inside of the supporting blocks in a sliding manner, springs are fixedly connected to the inner sides of the supporting blocks, one ends of the springs, which are not in contact with the inner walls of the supporting blocks, of the telescopic blocks are fixedly connected to the telescopic blocks, bearing plates are arranged on the telescopic blocks, LED lamp beads are arranged on the bearing plates, wavy pins are arranged on the LED lamp beads, and one ends of the pins, which are not in contact with the LDE lamp beads, of the LED lamp beads are fixedly connected with welding discs.
Preferably, the two ends of the bearing plate are respectively positioned in the limiting frame and the two fixing plates, and the fixing plates and the inner wall of the limiting frame are fixedly connected with insulating pads.
Preferably, the two fixing plates are provided with rotating holes, the inside of each rotating hole is rotationally connected with a rotating shaft, the rotating shafts are fixedly connected in the rotating grooves, torsion springs are movably sleeved on the rotating shafts, and two torsion arms of each torsion spring are respectively and fixedly connected on the rotating shafts and the inner walls of the rotating holes.
Preferably, the film body consists of shading glue, a lower brightness enhancement film, an upper brightness enhancement film, a first structural film and a third structural film.
Two glue frames are arranged on the PCB, the film body is arranged between the two glue frames, and a chip and protective glue are arranged on the PCB.
Compared with the prior art, the invention has the beneficial effects that:
(1) This multizone accuse light MINI LED backlight unit when needs are welded LDE lamp pearl and PCB board, insert the inside of spacing frame with the one end of loading board, and two fixed plates rotate relatively, two fixed plate atress are the open condition this moment, consequently, place the loading board between two continuous fixed plates of one end of keeping away from spacing frame, and not exert force the fixed plate, torsion spring resets and drives the fixed plate and reset this moment, therefore the fixed plate is fixed the loading board, fix it through fixed plate and spacing frame, and the telescopic block supports it, therefore make the LED lamp pearl when carrying out the welding through pin and PCB board, need not the manual work to hold the location to the LED lamp pearl, consequently, welding efficiency has been improved under the circumstances of reduction operating personnel intensity of labour, guarantee the accuracy of welded position simultaneously, there is great clearance between LED lamp pearl and the PCB board, consequently, improve the radiating effect of PCB board and LED lamp pearl.
(2) This multizone accuse light MINI LED backlight unit, the pin is the wave then makes this equipment when producing the vibration, and the length of pin is enough LED lamp pearl and loading board produce the displacement and the pin can not break off the connection with the PCB board, consequently ensures the normal supply of power, and the welding area between pin and the PCB board has then been increased in the setting of welding dish, consequently makes it be difficult for producing to break away from with the PCB board more, and then ensures the illuminating effect of LED lamp pearl.
(3) This multizone accuse light MINI LED backlight unit through the spring that sets up inside the supporting shoe, when this backlight unit produced the vibration, the shrink and the expansion of spring drove the inside production friction of flexible piece and supporting shoe, consequently through the shrink and the expansion of frictional force and spring's ability, cushion the power consumption to the vibration, and then make by backlight unit possess good shock attenuation effect, consequently improve its life, reduce the damage probability.
(4) This multizone accuse light MINI LED backlight unit, when the PCB board carries out the during operation, the heat that produces is adsorbed fast by the conducting strip, and pass through the conducting strip and transmit to the heat conduction post, then pass through the heat conduction post and transmit to the heat dissipation post, the diameter through the heat conduction post that sets up is the twice of heat dissipation post diameter, consequently the heat dissipation post diameter is less than the heat conduction post, and then the heat dissipation post does not contact with the inner wall of louvre, consequently increase the area of heat dissipation post and outside air contact, and then improve radiating efficiency and speed, consequently avoid the inside high temperature of shell to cause the damage to the LED lamp pearl, and then improve its life, reduce the cost expenditure that changes and maintains and bring.
(5) This multizone accuse light MINI LED backlight unit, the heat conduction post fixed connection who crosses the setting is in the inside of louvre, and the louvre still is sealing state this moment, and then can effectually avoid external dust and moisture to enter into the inside of shell through the louvre and cause corruption and damage to its inside electronic equipment, consequently ensures the normal use of this equipment.
(6) This multizone accuse light MINI LED backlight unit, through the fixture block and the draw-in groove looks adaptation that set up, consequently, make the shell advance to be connected between with the bottom plate, only need with the fixture block card go into the inner wall of draw-in groove can, when need to dismantle, only need press the both sides of shell relatively, the shell atress produces deformation and drives connecting plate and fixture block and remove, consequently the fixture block breaks away from the inside of draw-in groove, and then conveniently dismantle and safety between shell and the bottom plate, therefore convenient, follow-up maintenance and change to the LED lamp pearl, need not use outside bolt to fix it simultaneously, consequently improve the efficiency of dismantling and installing.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic structural diagram of a multi-area light control MINI LED backlight module according to the present invention;
FIG. 2 is a schematic view showing the separation of the bottom plate and the housing of the present invention;
FIG. 3 is a schematic front view of a base plate of the present invention;
FIG. 4 is a schematic view of a PCB board according to the present invention;
FIG. 5 is a schematic right side view of the fixing plate of the present invention;
FIG. 6 is a schematic front view of an LED light bead of the present invention;
FIG. 7 is a schematic right side view of a support block of the present invention;
FIG. 8 is a schematic plan view of a membrane body of the present invention.
Reference numerals: 1. a bottom plate; 101. a fixing groove; 102. a clamping groove; 103. a heat radiation hole; 104. a heat radiation column; 105. a heat conducting column; 2. a housing; 201. a connecting plate; 202. a clamping block; 3. a PCB board; 301. a rotating groove; 302. a protective adhesive; 303. a rubber frame; 4. a membrane body; 401. shading adhesive; 402. a lower brightness enhancement film; 403. a polishing film is arranged on the upper surface of the substrate; 404. a first structural film; 405. a first structural film; 406. a third structural film; 5. a limit frame; 6. a carrying plate; 7. LED lamp beads; 701. pins; 702. a welding plate; 8. a support block; 801. a telescopic block; 802. a spring; 9. a fixing plate; 901. an insulating pad; 902. a rotation hole; 903. a torsion spring; 904. a rotating shaft; 10. and a heat conductive sheet.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Embodiment one:
referring to fig. 1-3, the present invention provides a technical solution: the multi-area light control MINI LED backlight module comprises a bottom plate 1 and a shell 2 arranged on the bottom plate 1, wherein a PCB 3 is fixedly connected to one side, opposite to the shell 2, of the bottom plate 1, a film 4 is fixedly connected to the PCB 3, LED lamp beads 7 are arranged on the PCB 3, a supporting and fixing mechanism is arranged on the PCB 3, and a heat conducting fin 10 is fixedly connected between the PCB 3 and the bottom plate 1.
The bottom plate 1 is provided with a fixing groove 101, the inner wall of the fixing groove 101 is provided with a clamping groove 102, the lower surface of the shell 2 is fixedly connected with a connecting plate 201, one side of the connecting plate 201 is fixedly connected with a triangular clamping block 202, and the clamping block 202 is mutually matched with the clamping groove 102.
Through fixture block 202 and draw-in groove 102 looks adaptation that sets up, consequently, make shell 2 advance to be connected between with bottom plate 1, only need with the fixture block 202 card go into the inner wall of draw-in groove 102 can, when need to dismantle, only need press the both sides of shell 2 relatively, shell 2 atress produces deformation and drives connecting plate 201 and fixture block 202 and remove, consequently fixture block 202 breaks away from the inside of draw-in groove 102, and then conveniently dismantle and safety between shell 2 and the bottom plate 1, therefore convenient, follow-up maintenance and change to LED lamp pearl 7, need not use external bolt to fix it simultaneously, consequently improve the efficiency of dismantling and installing
Further, the bottom plate 1 is provided with a heat dissipation hole 103, the inside of the heat dissipation hole 103 is fixedly connected with a heat conduction column 105, the heat conduction column 105 and the heat conduction sheet 10 are mutually attached, one end, which is not contacted with the heat conduction sheet 10, of the heat conduction column 105 is fixedly connected with a heat dissipation column 104, and the diameter of the heat conduction column 105 is twice that of the heat dissipation column 104.
When the PCB 3 works, generated heat is quickly absorbed by the heat conducting fin 10 and is transferred to the heat conducting column 105 through the heat conducting fin 10, and then is transferred to the heat radiating column 104 through the heat conducting column 105, the diameter of the heat conducting column 105 through the arrangement is twice that of the heat radiating column 104, so that the diameter of the heat radiating column 104 is smaller than that of the heat conducting column 105, the heat radiating column 104 is not contacted with the inner wall of the heat radiating hole 103, the contact area of the heat radiating column 104 and the outside air is increased, the heat radiating efficiency and speed are further improved, the damage to the LED lamp beads 7 caused by the overhigh temperature inside the shell 2 is avoided, the service life of the LED lamp beads is further prolonged, and the cost expenditure caused by replacement and maintenance is reduced.
Meanwhile, the heat conducting columns 105 are fixedly connected to the inside of the heat radiating holes 103, and the heat radiating holes 103 are still in a sealing state, so that external dust and moisture can be effectively prevented from entering the inside of the shell 2 through the heat radiating holes 103 to corrode and damage electronic equipment in the shell, and normal use of the equipment is ensured.
Embodiment two;
referring to fig. 4-7, on the basis of the first embodiment, the supporting and fixing mechanism includes an n-shaped limiting frame 5 fixedly connected to the PCB 3, two rotating grooves 301 are formed in the PCB 3, fixing plates 9 in inverted L shapes are disposed in the rotating grooves 301, supporting blocks 8 are fixedly connected to opposite sides of the two fixing plates 9 and the inside of the limiting frame 5, telescopic blocks 801 are slidably connected to the inside of the supporting blocks 8, springs 802 are fixedly connected to the inside of the supporting blocks 8, and one ends of the springs 802, which are not in contact with the inner walls of the supporting blocks 8, are fixedly connected to the telescopic blocks 801.
Further, be provided with loading board 6 on the flexible piece 801, LED lamp pearl 7 sets up on loading board 6, is provided with on the LED lamp pearl 7 to be wavy pin 701, and the one end fixedly connected with welding disk 702 that the pin 701 did not contact with LDE lamp pearl 7.
The both ends of loading board 6 are located the inside of spacing frame 5 and the inside of two fixed plates 9 respectively, all fixedly connected with insulating pad 901 on the inner wall of fixed plate 9 and spacing frame 5.
Further, the two fixing plates 9 are provided with rotating holes 902, the inside of each rotating hole 902 is rotatably connected with a rotating shaft 904, the rotating shafts 904 are fixedly connected to the inside of the rotating groove 301, torsion springs 903 are movably sleeved on the rotating shafts 904, and two torsion arms of the torsion springs 903 are respectively and fixedly connected to the rotating shafts 904 and the inner walls of the rotating holes 902.
When needs are to be to LDE lamp pearl 7 and PCB 3 welding, insert the inside of spacing frame 5 with the one end of loading board 6, and two fixed plates 9 are rotated relatively, two fixed plates 9 atress are open state this moment, consequently, place the loading board 6 and keep away from the one end of spacing frame 5 between even two fixed plates 9, and not exert force to fixed plate 9, torsion spring 903 resets and drives fixed plate 9 and reset this moment, consequently fixed plate 9 is fixed loading board 6, fix it through fixed plate 9 and spacing frame 5 and, and telescopic block 801 supports it, therefore make LED lamp pearl 7 when carrying out the welding through pin 701 and PCB 3, need not the manual work to hold the location to LED lamp pearl 7, therefore welding efficiency is improved, guarantee the accuracy of welded position simultaneously, there is great clearance between LED lamp pearl 7 and the PCB 3, consequently, improve the radiating efficiency of PCB 3 and LED lamp pearl 7.
The pin 701 is wavy, so that when the equipment vibrates, the length of the pin 701 is enough to enable the LED lamp beads 7 and the bearing plate 6 to generate displacement, and the pin 701 cannot be disconnected with the PCB 3, so that normal supply of power is ensured, the welding area between the pin 701 and the PCB 3 is increased due to the arrangement of the welding disc 702, the LED lamp beads are not easy to separate from the PCB 3, and the lighting effect of the LED lamp beads 7 is ensured.
Meanwhile, when the backlight module vibrates, the spring 802 contracts and expands to drive the telescopic block 801 to rub the inside of the support block 8, so that vibration is buffered and energy is consumed through friction force and the contraction and expansion capacity of the spring 802, and further the backlight module has good damping effect, the service life of the backlight module is prolonged, and the damage probability is reduced.
Referring to fig. 8, the film body 4 is composed of a light shielding adhesive 401, a lower brightness enhancement film 402, an upper brightness enhancement film 403, a first structural film 404, a first structural film 405, and a third structural film 406.
Two glue frames 304 are arranged on the PCB 3, the film body 4 is arranged between the two glue frames 304, and the chip 302 and the protective glue 303 are arranged on the PCB 3.
The film body 4 through setting up increases the holistic effect in a poor light of board in a poor light consequently, makes it brighter, improves its luminousness, improves film body 4 bulk strength simultaneously, avoids it to produce broken phenomenon, improves its life, through setting up the protection glue 303 on PCB board 3, consequently can protect chip 302 can not receive the damage, and then ensures the stability in the equipment use.
Working principle: when the LDE lamp bead 7 and the PCB 3 are required to be welded, one end of the bearing plate 6 is inserted into the limiting frame 5, the two fixing plates 9 are relatively rotated, the two fixing plates 9 are stressed to be in an open state, one end of the bearing plate 6, which is far away from the limiting frame 5, is placed between the two fixing plates 9, the fixing plates 9 are not stressed, at the moment, the torsion spring 903 is reset to drive the fixing plates 9 to reset, the fixing plates 9 fix the bearing plate 6, the limiting frame 5 and the fixing plates are fixed through the fixing plates 9, and the telescopic blocks 801 support the fixing plates, so that the LED lamp bead 7 is not required to be manually held and positioned when the LED lamp bead 7 is welded with the PCB 3 through the pins 701.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.

Claims (5)

1. The utility model provides a multi-region accuse light MINI LED backlight unit, includes bottom plate (1) and shell (2) of setting on bottom plate (1), its characterized in that: a PCB (3) is fixedly connected to one side of the bottom plate (1) opposite to the shell (2), a film body (4) is fixedly connected to the PCB (3), LED lamp beads (7) are arranged on the PCB (3), a supporting and fixing mechanism is arranged on the PCB (3), and a heat conducting sheet (10) is fixedly connected between the PCB (3) and the bottom plate (1);
the supporting and fixing mechanism comprises an n-shaped limiting frame (5) fixedly connected to a PCB (3), two rotating grooves (301) are formed in the PCB (3), fixing plates (9) which are in inverted L shapes are arranged in the rotating grooves (301), supporting blocks (8) are fixedly connected to one side, opposite to the two fixing plates (9), of the limiting frame (5), telescopic blocks (801) are fixedly connected to the inside of each supporting block (8) in a sliding mode, springs (802) are fixedly connected to the inside of each supporting block (8), and one ends, which are not in contact with the inner walls of the supporting blocks (8), of the springs (802) are fixedly connected to the telescopic blocks (801);
the LED lamp bead (7) is arranged on the bearing plate (6), a wavy pin (701) is arranged on the LED lamp bead (7), and a welding disc (702) is fixedly connected to one end of the pin (701) which is not contacted with the LDE lamp bead (7);
the two ends of the bearing plate (6) are respectively positioned in the limit frame (5) and the two fixing plates (9), and insulating pads (901) are fixedly connected on the inner walls of the fixing plates (9) and the limit frame (5);
the two fixing plates (9) are provided with rotating holes (902), rotating shafts (904) are rotatably connected in the rotating holes (902), the rotating shafts (904) are fixedly connected in the rotating grooves (301), torsion springs (903) are movably sleeved on the rotating shafts (904), and two torsion arms of the torsion springs (903) are respectively and fixedly connected to the rotating shafts (904) and the inner walls of the rotating holes (902).
2. The multi-region light-control MINI LED backlight module of claim 1, wherein: the bottom plate (1) is provided with a fixing groove (101), the inner wall of the fixing groove (101) is provided with a clamping groove (102), the lower surface of the shell (2) is fixedly connected with a connecting plate (201), one side of the connecting plate (201) is fixedly connected with a triangular clamping block (202), and the clamping block (202) and the clamping groove (102) are mutually matched.
3. The multi-region light-control MINI LED backlight module of claim 1, wherein: the heat dissipation device is characterized in that the bottom plate (1) is provided with heat dissipation holes (103), the inside of each heat dissipation hole (103) is fixedly connected with a heat conduction column (105), the heat conduction columns (105) are mutually attached to the heat conduction sheet (10), and one end, which is not contacted with the heat conduction sheet (10), of each heat conduction column (105) is fixedly connected with a heat dissipation column (104).
4. The multi-area light-control MINI LED backlight module of claim 3, wherein: the diameter of the heat conducting column (105) is twice that of the heat radiating column (104).
5. The multi-region light-control MINI LED backlight module of claim 1, wherein: the film body (4) consists of shading glue (401), a lower brightness enhancement film (402), an upper brightness enhancement film (403), a first structural film (404), a first structural film (405) and a third structural film (406);
two rubber frames (304) are arranged on the PCB (3), the film body (4) is arranged between the two rubber frames (304), and a chip (302) and a protective rubber (303) are arranged on the PCB (3).
CN202211313397.0A 2022-10-25 2022-10-25 Multi-area light control MINI LED backlight module Active CN115453789B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109085721A (en) * 2018-09-11 2018-12-25 昆山龙腾光电有限公司 Backlight module and liquid crystal display device
CN111981360A (en) * 2020-08-27 2020-11-24 深圳市赛时达光电科技有限公司 Adjustable MINI LED lamp backlight module
CN214896116U (en) * 2020-12-31 2021-11-26 昆山龙腾光电股份有限公司 Backlight module and display device
CN215814366U (en) * 2021-09-10 2022-02-11 广东臻享云物联网科技有限公司 Portable power source rack with board in a poor light
CN114879405A (en) * 2022-03-30 2022-08-09 深圳市南极光电子科技股份有限公司 Mini-LED backlight source capable of improving light transmittance

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103543559B (en) * 2013-11-05 2016-11-02 深圳市华星光电技术有限公司 Down straight aphototropism mode set

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109085721A (en) * 2018-09-11 2018-12-25 昆山龙腾光电有限公司 Backlight module and liquid crystal display device
CN111981360A (en) * 2020-08-27 2020-11-24 深圳市赛时达光电科技有限公司 Adjustable MINI LED lamp backlight module
CN214896116U (en) * 2020-12-31 2021-11-26 昆山龙腾光电股份有限公司 Backlight module and display device
CN215814366U (en) * 2021-09-10 2022-02-11 广东臻享云物联网科技有限公司 Portable power source rack with board in a poor light
CN114879405A (en) * 2022-03-30 2022-08-09 深圳市南极光电子科技股份有限公司 Mini-LED backlight source capable of improving light transmittance

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