CN114415423A - Improve fixed on-vehicle backlight unit of light guide plate - Google Patents
Improve fixed on-vehicle backlight unit of light guide plate Download PDFInfo
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- CN114415423A CN114415423A CN202210113284.XA CN202210113284A CN114415423A CN 114415423 A CN114415423 A CN 114415423A CN 202210113284 A CN202210113284 A CN 202210113284A CN 114415423 A CN114415423 A CN 114415423A
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- guide plate
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- frame
- light
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- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
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- 239000002245 particle Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 4
- 238000011900 installation process Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 230000002411 adverse Effects 0.000 abstract 1
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- 238000006243 chemical reaction Methods 0.000 description 2
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
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Classifications
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- G02F1/1313—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 specially adapted for a particular application
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a vehicle-mounted backlight module for improving the fixation of a light guide plate, which comprises: the LED lamp of setting at the side to and just to the light guide plate subassembly that the LED lamp set up, the light guide plate subassembly includes: the light guide plate comprises a light guide plate body and a component for fixing the light guide plate body, wherein the component for fixing the light guide plate body comprises a lower metal frame, two groups of symmetrically arranged assembling strips and a supporting frame, three groups of longitudinally arranged embedding grooves are formed in the inner side of the lower metal frame, an installation frame is installed on the inner side of each assembling strip through embedding of the embedding grooves, a cushion pad is installed on the inner side of each assembling strip through embedding of the embedding grooves, and the cushion pad is located above the installation frame. The installation frame is fixed in the outside of light guide plate, supports inboard light guide plate through the installation frame, increases the ability of the anti-vibration of light guide plate, and when the installation light guide plate, the workman only need with the installation frame get up can, guarantee the stability of installation frame, avoid in adverse circumstances the light guide plate appear not hard up.
Description
Technical Field
The utility model relates to the technical field of vehicle-mounted backlight modules, in particular to a vehicle-mounted backlight module for improving fixation of a light guide plate.
Background
The backlight module is a structure for providing backlight source for display devices such as liquid crystal displays and the like which can not independently emit light, and the displays can display pictures with rich colors only by white light provided by the backlight module. The on-board display is a commonly used display to improve the image display for the driver.
The defects of the vehicle-mounted backlight module in the prior art are as follows:
1. patent document CN210572853U discloses an ultra-thin vehicle-mounted backlight module, "comprising a light guide plate and a light bar, wherein the light guide plate has a light guide portion and a light incident portion disposed on one side of the light guide portion, and the light bar includes a circuit board and a top-emitting LED disposed on the circuit board; the back surface of the light inlet part is provided with an accommodating groove, the top light-emitting LED is positioned in the accommodating groove, and the circuit board is fixed on the back surface of the light inlet part; the accommodating groove is internally provided with a reflecting surface so as to reflect the light rays emitted by the top-emitting LED into the light guide part. The ultrathin vehicle-mounted backlight module not only reduces the backlight thickness, but also meets the brightness requirement of vehicle-mounted display. "traditional device is in the environment of vibrations, and the light guide plate of inside appears becoming flexible easily, causes the production of abnormal sound.
2. The patent document CN209356803U discloses a medium-large-size vehicle-mounted backlight module, which comprises a work main body, a base, a hydraulic cylinder, a control cabinet, a power box, a water pipe and a top cover, wherein the work main body is arranged above the base, the base is arranged above the hydraulic cylinder, the hydraulic cylinder is arranged below the control cabinet, the control cabinet is arranged in front of the power box, the power box is arranged below the water pipe, and the water pipe is arranged on the right side of the top cover.
3. Patent document CN213904015U discloses a novel vehicle-mounted backlight module, "which comprises a back shell, a lamp panel, an inner frame, a diffuser plate, a diaphragm assembly and a middle frame, wherein the lamp panel and the inner frame are both fixed in the back shell, and the inner frame is arranged outside the lamp panel; the diffusion plate is arranged above the lamp panel and is arranged on the inner frame; the diaphragm assembly is overlapped on the diffusion plate, the middle frame is fixed on the back shell, and the diffusion plate and the diaphragm assembly are pressed and fixed in the back shell; be provided with a plurality of blue light LEDs on the lamp plate, the diaphragm subassembly includes the color conversion membrane, the color conversion membrane sends white light after being shone by the blue light. The vehicle-mounted backlight module is provided with the inner frame for supporting and installing the diffusion plate, so that the diffusion plate with heavier weight is stably installed in the backlight module, the requirement of a vehicle-mounted use environment can be met when the backlight module is used as a part of a vehicle-mounted display, and the stability and the reliability of the long-term use of the backlight module are ensured. "traditional device lacks heat radiation structure, causes the device can't move under high temperature environment, takes place to damage easily when the inside high temperature of device.
4. Patent document CN211506118U discloses a vehicle-mounted backlight module with fixed reinforced optical film, which comprises a light guide plate and a multilayer optical film located at the upper end of the light guide plate, one side of the light guide plate is provided with a boss with different steps, the multilayer optical film is provided with a gluing structure between the light guide plate, the gluing structure comprises multiple sections of double-faced adhesive tape, the multilayer optical film is close to one side of the boss is respectively provided with multiple sections of double-faced adhesive tape and the light guide plate is made into a segmented adhesive tape for fixation. The vehicle-mounted display device comprises the vehicle-mounted backlight module fixed by the reinforced optical diaphragm. According to the vehicle-mounted backlight module and the display device, the multi-layer optical film and the light guide plate are adhered and fixed into a whole in a segmented mode through the multi-segment double faced adhesive tapes, so that the optical film and the boss of the light guide plate can be adhered more effectively, the optical film is prevented from loosening and abnormal sound, the product quality and reliability are improved, the 8U environment-friendly fiberboard production device is provided, the traditional device is lack of an adjusting and supporting structure, the installation specification of the device is single, and different installation requirements cannot be met.
Disclosure of Invention
The present invention is directed to a vehicle-mounted backlight module with improved light guide plate fixation, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a vehicle-mounted backlight module for improving fixation of a light guide plate comprises a lower metal frame, assembly strips and a support frame, wherein two groups of symmetrically-arranged assembly strips are mounted on the inner side of the lower metal frame, three groups of longitudinally-arranged embedding grooves are formed in the inner sides of the two groups of assembly strips, an installation frame is mounted on the inner sides of the assembly strips in an embedded mode through the embedding grooves, cushion pads are mounted on the inner sides of the assembly strips in an embedded mode through the embedding grooves, the cushion pads are located above the installation frame, fixed frames are mounted on the inner sides of the assembly strips in an embedded mode through the embedding grooves, and the fixed frames are located above the cushion pads;
supporting legs are mounted on the outer wall of the bottom of the lower metal frame, and supporting frames are mounted at the bottom ends of the supporting legs;
an upper metal frame is embedded and installed on the outer side of the top of the lower metal frame, and a double-faced adhesive tape is adhered to the top of the upper metal frame.
Preferably, install aluminium base board down on the inboard diapire of metal frame, the support seatpad is installed at the top of aluminium base board, the reflector plate is installed at the top of supporting the seatpad, install the elasticity fastener of three group's symmetric distributions down on the outer wall of metal frame, run through on the diapire of metal frame down and install the conducting strip that a plurality of groups equidistance were arranged, and the conducting strip is located the inboard of supporting legs, two sets of symmetrical arrangement's telescopic link is installed in the diapire outside of metal frame down, and two sets of telescopic links are located between two sets of conducting strips, and are two sets of the binding plate is all installed to the bottom of telescopic link.
Preferably, plug-in components are installed to the front end and the rear end of equipment strip, the mounting panel is installed through the gomphosis of plug-in components to the front end and the rear end of equipment strip, and the mounting panel installs the inboard of metal frame under, the inboard of mounting panel is seted up the draw-in groove that runs through of two sets of symmetrical arrangement, runs through draw-in groove and the mutual gomphosis of plug-in components, and is two sets of the laminating pad is installed to the opposite face of mounting panel, and the laminating pad is located the front and the back of installation frame, blotter and fixed frame.
Preferably, the LED lamps are disposed at two sides of the light guide plate, and light of the LED lamps enters through a light incident surface at a side surface of the light guide plate, passes through the light guide plate, and is diffused and output from an upper surface of the light guide plate;
the light guide plate assembly further includes: a diffusion sheet disposed above the light guide plate, a reflection sheet disposed below the light guide plate;
the diffusion sheet comprises an upper diffusion sheet (5) and a lower diffusion sheet (401); the inner side of the buffer pad (402) is provided with a lower diffusion sheet (401), the top of the lower diffusion sheet (401) is provided with a prism sheet (4), and the prism sheet (4) is arranged on the inner side of the buffer pad (402).
Preferably, a V-shaped groove is formed in the middle of the upper surface of the light guide plate, an auxiliary LED lamp is arranged at the bottom of the light guide plate corresponding to the V-shaped groove, light emitted by the auxiliary LED lamp is upwards transmitted and is totally internally reflected by the V-shaped groove, and then the light is transmitted to the inner side surface of the light guide plate, so that the light emitting efficiency is improved.
Preferably, the inner side of the fixing frame is provided with an upper diffusion sheet, and the upper diffusion sheet is positioned on the inner side of the upper metal frame.
Preferably, a fixing frame is installed on the inner side of the bottom end of the supporting frame, a heat dissipation fan is installed at the top of the fixing frame, and the heat dissipation fan is located below the heat conducting fins;
regulating and controlling the cooling fan (603) according to actual cooling requirements, firstly determining a calibration working voltage of the cooling fan (603) according to the cooling requirements, wherein the calibration working voltage is determined according to the state of the cooling fan (603), and the state comprises a starting stage of the cooling fan (603), a closing stage of the cooling fan (603), and a normal motion stage and an abnormal operation stage of the cooling fan (603); and then detecting the actual working voltage of the cooling fan (603), judging whether the actual working voltage is matched with the calibrated working voltage, if not, adjusting the actual working voltage to enable the actual working voltage to be close to the calibrated working voltage, judging whether the actual rotation parameter of the cooling fan (603) is consistent with the calibrated rotation parameter, if not, adjusting the actual rotation parameter according to the calibrated rotation parameter to enable the actual rotation parameter to be close to the calibrated rotation parameter, and if so, keeping the cooling fan (603) in the existing state.
Preferably, the inner side of the upper metal frame is provided with a limiting clamping groove, and the outer side of the upper metal frame is provided with a protective pad;
the periphery of lower metal frame (1) sets up buffer structure, buffer structure includes: the fence is provided with a fence matched with the shape of a lower metal frame (1), the lower metal frame (1) is arranged in the fence, limiting posts are arranged at four corners of the fence, mounting grooves are formed in the limiting posts, buffer strips are correspondingly arranged among the four limiting posts, positioning pieces are arranged at corners of the buffer strips, each positioning piece comprises a positioning plate, threaded holes which are arranged in a penetrating mode are respectively formed in the upper end and the lower end of the positioning plate, the buffer strips are clamped with the lower metal frame (1) through the limiting pieces, each limiting piece comprises a limiting block and a threaded rod, the limiting blocks are arranged in a cylindrical mode, through holes are formed in the limiting blocks, the threaded rods are fixedly connected with the side faces of the limiting blocks, rubber heads are fixedly connected to one ends, far away from the limiting blocks, of the threaded rods are made of rubber products, and the buffer strips are arranged in hollow cuboids, still include the installed part, the spacing groove has been seted up to the upper end of rail, the installed part passes through spacing groove and rail joint, the installed part includes installing frame and a plurality of connecting piece, installing frame and a plurality of connecting piece fixed connection, the connecting piece is made for deformable plastics, and is a plurality of form deformation hole between the connecting piece, be provided with the stop collar on the connecting piece, the stop collar is installed through spacing hole and is rotated the cover, fixedly connected with turning block on the lateral wall of rotation cover, the turning block passes through to rotate between the inside wall of ring channel and stop collar and is connected, and is a plurality of connecting piece and deformation hole form network structure.
Preferably, a protective film is arranged at the top of the double-sided adhesive tape, and a lifting belt is arranged on one side of the protective film.
Preferably, the mounting steps of the vehicle-mounted backlight module are as follows:
s1, a worker places the device at an appointed position, so that the attaching plate is installed at a position needing to be installed, the attaching plate is fixed through a bolt, the stability of the attaching plate is guaranteed, the attaching plate can be conveniently fixed to a telescopic rod at the top, when the worker assembles equipment, the length of the telescopic rod is adjusted according to needs, the device can meet the installation requirements under different conditions, the telescopic rod fixes a lower metal frame at the top, the stability of the lower metal frame is guaranteed, the lower metal frame is prevented from shaking in the installation process, and the lower metal frame is fixed;
s2, a worker installs the installation frame and the fixing frame of the buffer pad in the embedding groove of the assembly strip in an embedding manner, the worker can conveniently assemble the device, after the device is assembled, the worker butt joints the through clamping groove on the installation plate with the plug-in on the assembly strip, so that the installation plate is fixed on the front and the back of the installation frame, the buffer pad and the fixing frame, the installation frame, the buffer pad and the fixing frame are protected through the flexibility of the attaching pad, the device is prevented from loosening in long-time installation, then the worker installs the assembled installation plate and the assembled strip on the inner side of the lower metal frame, the connection tightness of the installation plate and the assembled strip is ensured, and the device cannot shake due to the influence of the outside;
s3, a worker installs the upper metal frame on the outer side of the lower metal frame, so that the limiting clamping groove on the upper metal frame is mutually embedded with the elastic clamping piece, the connection tightness of the device is ensured, the worker can conveniently assemble the device, the worker fixes the protective film on the top of the upper metal frame through the double faced adhesive tape, the falling of dust above the protective film is blocked, and the safety of the device is ensured;
s4, when the device is operated, the LED lamp is electrified to emit light, the light is projected and coupled into the light guide plate (3), and the light is reflected in the light guide plate (3) and is emitted to the upper surface; the utility model discloses a diffusion piece is with the light of being reflected on the reflector plate to reflect again to the light guide plate by the reflector plate, improve the availability factor of light, the light that the light guide plate sent upwards throws, light passes diffusion piece down, diffusion piece inside has multiunit scattering particle down, light can constantly refract and reflect when the diffusion piece is under the process, concentrate even the projection on the prism piece with the light that the light guide plate sent, the prism piece is used for increasing luminance, then light passes diffusion piece, the effect that causes optical diffusion by last diffusion piece, make the light source atomizing, make the more even emergence of light source, light jets out through the protecting film, protect by the last diffusion piece of protecting film to the bottom, avoid last diffusion piece to receive the damage.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the light guide plate is installed, the installation frame is fixed on the outer side of the light guide plate, the light guide plate on the inner side is supported by the installation frame, the anti-vibration capability of the light guide plate is increased, when the light guide plate is installed, workers only need to install the frame, the stability of the installation frame is ensured, and the light guide plate is prevented from loosening in a severe environment.
2. According to the utility model, the protective film is arranged, the protective film is fixed on the top of the upper metal frame through the double-sided adhesive tape, the protective film prevents dust above the protective film from falling onto the upper diffusion sheet to influence light projection of the device, and when the protective film is not needed, a user grasps the lifting belt to tear the protective film and the double-sided adhesive tape off the upper metal frame.
3. According to the LED lamp, the heat conducting fins are arranged, when the LED lamp is electrified and emits light, heat is generated and is transmitted to the inside of the device, air is transmitted to the lower metal frame, the lower metal frame is made of metal, the heat conducting and radiating speed of the device can be accelerated, meanwhile, the heat in the device is transmitted to the heat conducting fins by the lower metal frame, the contact area between the heat conducting fins and the outside air is larger, the heat radiating speed is higher, meanwhile, the supporting frame is fixed on the outer wall of the bottom of the lower metal frame through the supporting legs, the stability of the supporting frame is guaranteed, the supporting frame is fixed to the cooling fan on the inner side through the fixing frame, the cooling fan runs to generate air flow, low-temperature air blows to the heat conducting fins, and the cooling speed of the heat conducting fins is accelerated.
4. According to the utility model, the telescopic rod is installed, the attaching plate is fixed through the bolt, the stability of the attaching plate is ensured, the attaching plate can conveniently fix the telescopic rod at the top, and a worker can adjust the length of the telescopic rod as required when assembling equipment, so that the device can meet the installation requirements under different conditions.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of a lower metal frame according to the present invention;
FIG. 4 is a schematic perspective view of a lower metal frame according to the present invention;
FIG. 5 is a schematic view of the assembled strip of the present invention;
FIG. 6 is a schematic view of a supporting frame according to the present invention;
FIG. 7 is a schematic view of the structure of the upper metal frame of the present invention;
FIG. 8 is a schematic view of the structure of the protective film of the present invention.
In the figure: 1. a lower metal frame; 101. an aluminum substrate; 102. supporting the seat cushion; 103. the elastic clamping piece; 104. a reflective sheet; 105. a heat conductive sheet; 106. a telescopic rod; 107. attaching a plate; 2. assembling the strips; 201. a fitting groove; 202. a plug-in; 203. mounting a plate; 204. the clamping groove penetrates through the clamping plate; 205. attaching a pad; 3. a light guide plate; 301. a mounting frame; 4. a prism sheet; 401. a lower diffusion sheet; 402. a cushion pad; 5. an upper diffusion sheet; 501. a fixing frame; 6. a support frame; 601. supporting legs; 602. a fixed mount; 603. a heat radiation fan; 7. an upper metal frame; 701. a protective pad; 702. a limiting clamping groove; 8. a protective film; 801. lifting the pull belt; 802. and (4) double-sided adhesive tape.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, an embodiment of the present invention: a vehicle-mounted backlight module for improving the fixation of a light guide plate;
in the first embodiment, the first embodiment comprises a lower metal frame 1, assembling strips 2 and a supporting frame 6, wherein two groups of symmetrically arranged assembling strips 2 are installed on the inner side of the lower metal frame 1, three groups of longitudinally arranged embedding grooves 201 are formed on the inner sides of the two groups of assembling strips 2, plug-ins 202 are installed at the front end and the rear end of the assembling strips 2, mounting plates 203 are installed at the front end and the rear end of the assembling strips 2 through the plug-ins 202 in an embedding manner, the mounting plates 203 are installed on the inner side of the lower metal frame 1, two groups of symmetrically arranged through slots 204 are formed on the inner side of the mounting plates 203, the through slots 204 are embedded with the plug-ins 202, attaching pads 205 are installed on the opposite surfaces of the two groups of mounting plates 203, the attaching pads 205 are positioned on the front surfaces and the back surfaces of a mounting frame 301, a buffer pad 402 and a fixing frame 501 of the buffer pad 402, and are installed on the inner sides of the embedding grooves 201 of the assembling strips 2 in an embedding manner, so that workers can assemble the device conveniently, after the assembly of the device is completed, a worker butt-joints the through-slot 204 on the mounting plate 203 with the plug-in 202 on the assembly strip 2, so that the mounting plate 203 is fixed on the front and back sides of the mounting frame 301, the buffer pad 402 and the fixing frame 501, the mounting frame 301, the buffer pad 402 and the fixing frame 501 are protected by the flexible attaching pad 205, the device is prevented from loosening in long-time installation, then the worker installs the assembled mounting plate 203 and the assembled strip 2 on the inner side of the lower metal frame 1, the tightness of the connection between the mounting plate 203 and the assembled strip 2 is ensured, the device is prevented from shaking due to the influence of the outside, the mounting frame 301 is installed on the inner side of the assembled strip 2 through the embedding groove 201 in an embedding manner, the light guide plate 3 is installed on the inner side of the mounting frame 301, the mounting frame 301 is fixed on the outer side of the light guide plate 3, and the light guide plate 3 on the inner side is supported by the mounting frame 301, the anti-vibration capability of the light guide plate 3 is improved, when the light guide plate 3 is installed, workers only need to fix the installation frame 301, the stability of the installation frame 301 is guaranteed, the LED lamps are arranged on two sides of the light guide plate, light of the LED lamps enters through the light incoming surface on the side surface of the light guide plate 3, passes through the light guide plate 3 and is diffused and output from the upper surface of the light guide plate 3; the inner side of the assembly strip 2 is provided with a buffer pad 402 through an embedded groove 201 in an embedded manner, the buffer pad 402 is positioned above the mounting frame 301, the inner side of the buffer pad 402 is provided with a lower diffusion sheet 401, the top of the lower diffusion sheet 401 is provided with a prism sheet 4, the buffer pad 402 is fixed on the inner side of the embedded groove 201, the buffer pad 402 limits the lower diffusion sheet 401 and the prism sheet 4 to ensure the stability of the prism sheet 4, the prism sheet 4 is arranged on the inner side of the buffer pad 402, the inner side of the assembly strip 2 is provided with a fixing frame 501 through the embedded groove 201 in an embedded manner, the fixing frame 501 is positioned above the buffer pad 402, the inner side of the fixing frame 501 is provided with an upper diffusion sheet 5, the upper diffusion sheet 5 is positioned on the inner side of an upper metal frame 7, the bottom wall of the inner side of the lower metal frame 1 is provided with an aluminum substrate 101, the aluminum substrate 101 supports the top supporting cushion 102, and is convenient for the top reflecting sheet 104 to be fixed by the supporting cushion 102, the stable operation of the reflector plate 104 is ensured, the top of the aluminum substrate 101 is provided with the supporting seat cushion 102, the top of the supporting seat cushion 102 is provided with the reflector plate 104, the outer wall of the lower metal frame 1 is provided with three groups of symmetrically distributed elastic clamping pieces 103, when the device operates, the LED lamp is electrified to emit light, the light is projected and coupled into the light guide plate 3, and the light is reflected in the light guide plate 3 and is emitted to the upper surface; the light reflected to the reflecting sheet (104) is reflected to the light guide plate (3) again by the reflecting sheet (104), the use efficiency of the light is improved, the light emitted by the light guide plate (3) is projected upwards, the light passes through the lower diffusion sheet (401), a plurality of groups of scattering particles are arranged in the lower diffusion sheet (401), the light can be continuously refracted and reflected when passing through the lower diffusion sheet (401), the light emitted by the light guide plate (3) is uniformly and intensively projected onto the prism sheet (4), the prism sheet (4) is used for increasing the brightness, then the light passes through the upper diffusion sheet (5), the upper diffusion sheet (5) causes the optical diffusion effect, so that the light source is atomized, the light source is more uniformly transmitted out, and the light is emitted out through the protective film (8);
referring to fig. 1, fig. 2, fig. 7 and fig. 8, an embodiment of the present invention: a vehicle-mounted backlight module for improving the fixation of a light guide plate;
the second embodiment comprises a lower metal frame 1, an assembling strip 2 and a supporting frame 6, wherein an upper metal frame 7 is installed on the outer side of the top of the lower metal frame 1 in an embedded mode, a limiting clamping groove 702 is formed in the inner side of the upper metal frame 7, a protective pad 701 is installed on the outer side of the upper metal frame 7, a double-faced adhesive tape 802 is adhered to the top of the upper metal frame 7, a protective film 8 is installed on the top of the double-faced adhesive tape 802, a lifting belt 801 is installed on one side of the protective film 8, the upper metal frame 7 is installed on the outer side of the lower metal frame 1, so that the limiting clamping groove 702 and an elastic clamping piece 103 on the upper metal frame 7 are mutually embedded, the connection tightness of the device is guaranteed, a worker can conveniently assemble the device, the worker fixes the protective film 8 on the top of the upper metal frame 7 through the double-faced adhesive tape 802, the protective film 8 can prevent dust above from falling onto an upper diffusion sheet 5 to influence the light projection of the device, when the pellicle 8 is not needed, the user grasps the lifting tape 801 and tears the pellicle 8 and the double-sided tape 802 off the upper metal frame 7.
Referring to fig. 2, an embodiment of the present invention: a vehicle-mounted backlight module for improving the fixation of a light guide plate;
the embodiment three, including metal frame 1 down, two sets of symmetrical arrangement's telescopic link 106 is installed in the diapire outside of metal frame 1 down, and two sets of telescopic link 106 are located between two sets of conducting strips 105, two sets of attaching plate 107 is all installed to the bottom of telescopic link 106, place the device in the assigned position, make attaching plate 107 install the position that needs the installation, fix attaching plate 107 through the bolt, guarantee attaching plate 107's stability, make things convenient for attaching plate 107 to fix the telescopic link 106 at top, the workman is when the equipment is assembled, adjust the length of telescopic link 106 as required, make the device can satisfy the installation under the different situation, telescopic link 106 is fixed to the lower metal frame 1 at top, metal frame 1's stability under the assurance, metal frame 1 rocks in-process taking place at the installation under preventing, metal frame 1's fixed back under the completion.
Referring to fig. 1, fig. 3 and fig. 6, an embodiment of the present invention: a vehicle-mounted backlight module for improving the fixation of a light guide plate;
the fourth embodiment comprises a lower metal frame 1, an assembly strip 2 and a support frame 6, wherein the outer wall of the bottom of the lower metal frame 1 is provided with a support leg 601, the bottom end of the support leg 601 is provided with the support frame 6, the bottom wall of the lower metal frame 1 is provided with a plurality of groups of heat conducting fins 105 which are arranged at equal intervals in a penetrating manner, the heat conducting fins 105 are positioned at the inner side of the support leg 601, the inner side of the bottom end of the support frame 6 is provided with a fixing frame 602, the top of the fixing frame 602 is provided with a heat radiating fan 603, and the heat radiating fan 603 is positioned below the heat conducting fins 105. in the operation process of the device, if heat is generated, the heat is transmitted to the inside of the device and air is transmitted to the lower metal frame 1, the lower metal frame 1 is made of metal, the heat conducting and heat radiating speed of the device can be accelerated, meanwhile, the lower metal frame 1 transmits the heat in the device to the heat conducting fins 105, and the contact area between the heat conducting fins 105 and the outside air is larger, make the radiating rate faster, simultaneously the carriage 6 is fixed on the bottom outer wall of metal frame 1 down through supporting legs 601, guarantees the stability of carriage 6, and carriage 6 is fixed to inboard radiator fan 603 through mount 602, and radiator fan 603 operation produces the air current, and low temperature air blows to conducting strip 105 for conducting strip 105's radiating rate.
In addition, the cooling fan (603) can be regulated according to actual cooling requirements, firstly, the calibration working voltage of the cooling fan (603) is determined according to the cooling requirements, the calibration working voltage is determined according to the state of the cooling fan (603), and the state comprises the starting stage of the cooling fan (603), the closing stage of the cooling fan (603), and the normal motion stage and the abnormal operation stage of the cooling fan (603); and then detecting the actual working voltage of the cooling fan (603), judging whether the actual working voltage is matched with the calibrated working voltage, if not, adjusting the actual working voltage to enable the actual working voltage to be close to the calibrated working voltage, judging whether the actual rotation parameter of the cooling fan (603) is consistent with the calibrated rotation parameter, if not, adjusting the actual rotation parameter according to the calibrated rotation parameter to enable the actual rotation parameter to be close to the calibrated rotation parameter, and if so, keeping the cooling fan (603) in the existing state. The cooling fan is monitored in real time, efficient operation of the cooling fan is guaranteed, waste of resources is reduced, and reasonable and effective utilization of the resources is guaranteed.
It should be noted that, for the adjustment of the rotation speed of the cooling fan, the control may be performed by a fan control system, and the control mode of the fan control system is to control the speed regulation based on a preset control mode, and specifically, the following modes are adopted: determining a transfer function of a fan speed control system, wherein the transfer function is as follows:
wherein Y(s) is a fan output control parameter, R(s) is a fan input control parameter, e-tsFor the fuzzy control compensation parameter, t is the time period between the time c and the time o, Gc(s) is the ratio of the Laplace transform of the output quantity to the Laplace transform of the input quantity at time c, Go(s) is the ratio of the laplace transform of the output quantity to the laplace transform of the input quantity at time o. And determining a voltage output difference value of the fan at the optimal rotating speed based on the transfer function and the objective function of the neural network, and determining a control relation between the rotating speed of the fan and output regulation according to the difference value.
The periphery of lower metal frame (1) sets up buffer structure, buffer structure includes: the fence is provided with a fence matched with the shape of a lower metal frame (1), the lower metal frame (1) is arranged in the fence, limiting posts are arranged at four corners of the fence, mounting grooves are formed in the limiting posts, buffer strips are correspondingly arranged among the four limiting posts, positioning pieces are arranged at corners of the buffer strips, each positioning piece comprises a positioning plate, threaded holes which are arranged in a penetrating mode are respectively formed in the upper end and the lower end of the positioning plate, the buffer strips are clamped with the lower metal frame (1) through the limiting pieces, each limiting piece comprises a limiting block and a threaded rod, the limiting blocks are arranged in a cylindrical mode, through holes are formed in the limiting blocks, the threaded rods are fixedly connected with the side faces of the limiting blocks, rubber heads are fixedly connected to one ends, far away from the limiting blocks, of the threaded rods are made of rubber products, and the buffer strips are arranged in hollow cuboids, still include the installed part, the spacing groove has been seted up to the upper end of rail, the installed part passes through spacing groove and rail joint, the installed part includes installing frame and a plurality of connecting piece, installing frame and a plurality of connecting piece fixed connection, the connecting piece is made for deformable plastics, and is a plurality of form deformation hole between the connecting piece, be provided with the stop collar on the connecting piece, the stop collar is installed through spacing hole and is rotated the cover, fixedly connected with turning block on the lateral wall of rotation cover, the turning block passes through to rotate between the inside wall of ring channel and stop collar and is connected, and is a plurality of connecting piece and deformation hole form network structure. The mode through this embodiment promotes on-vehicle backlight unit's antidetonation characteristic, avoids causing on-vehicle backlight unit's damage because vibrations or striking.
The mounting steps of the vehicle-mounted backlight module are as follows:
s1, a worker places the device at an appointed position, so that the attaching plate 107 is installed at a position needing to be installed, the attaching plate 107 is fixed through a bolt, the stability of the attaching plate 107 is guaranteed, the attaching plate 107 can conveniently fix the telescopic rod 106 at the top, when the worker assembles equipment, the length of the telescopic rod 106 is adjusted as required, the device can meet the installation requirements under different conditions, the telescopic rod 106 fixes the lower metal frame 1 at the top, the stability of the lower metal frame 1 is guaranteed, the lower metal frame 1 is prevented from shaking in the installation process, and the fixing of the lower metal frame 1 is completed;
s2, a worker installs the installation frame 301 and the fixing frame 501 of the cushion pad 402 inside the embedding groove 201 of the assembly strip 2 in an embedding manner, the worker can conveniently assemble the device, after the device is assembled, the worker butt joints the penetrating clamping groove 204 on the installation plate 203 with the plug-in units 202 on the assembly strip 2, so that the installation plate 203 is fixed on the front and back sides of the installation frame 301, the cushion pad 402 and the fixing frame 501, the installation frame 301, the cushion pad 402 and the fixing frame 501 are protected through the flexibility of the attaching pad 205, the device is prevented from loosening during long-time installation, then the worker installs the assembled installation plate 203 and the assembled strip 2 inside the lower metal frame 1, the connection tightness of the installation plate 203 and the assembly strip 2 is ensured, and the device is prevented from shaking caused by external influence;
s3, a worker installs the upper metal frame 7 on the outer side of the lower metal frame 1, so that the limiting clamping groove 702 on the upper metal frame 7 is mutually embedded with the elastic clamping piece 103, the connection tightness of the device is ensured, the device is convenient to assemble by the worker, the worker fixes the protective film 8 on the top of the upper metal frame 7 through the double-sided adhesive tape 802, the protective film 8 blocks the falling of dust above, and the safety of the device is ensured;
s4, when the device is operated, the LED lamp is electrified to emit light, the light is projected and coupled into the light guide plate (3), and the light is reflected in the light guide plate (3) and is emitted to the upper surface; the reflector plate 104 reflects light reflected to the reflector plate to the light guide plate 3 again, the utilization efficiency of the light is improved, the light emitted by the light guide plate 3 is projected upwards, the light passes through the lower diffusion plate 401, a plurality of groups of scattering particles are arranged inside the lower diffusion plate 401, the light can be continuously refracted and reflected when passing through the lower diffusion plate 401, the light emitted by the light guide plate 3 is uniformly projected onto the prism sheet 4 in a concentrated mode, the prism sheet 4 is used for increasing the brightness, the light passes through the upper diffusion plate 5, the effect of optical diffusion is caused by the upper diffusion plate 5, the light source is atomized, the light source is uniformly transmitted out, the light is emitted out through the protective film 8, the upper diffusion plate 5 at the bottom is protected by the protective film 8, and the upper diffusion plate 5 is prevented from being damaged.
The working principle is as follows: the workman places the device in the assigned position, make the attaching plate 107 install the position that needs the installation, fix attaching plate 107 through the bolt, guarantee attaching plate 107's stability, make things convenient for attaching plate 107 to fix the telescopic link 106 at top, the workman is when the equipment of equipment, adjust the length of telescopic link 106 as required, make the device can satisfy the installation under the different situation, telescopic link 106 is fixed to the lower metal frame 1 at top, guarantee the stability of lower metal frame 1, prevent that lower metal frame 1 from taking place to rock in the in-process of installation, after accomplishing the fixed back of lower metal frame 1, the workman installs installation frame 301 and the gomphosis of the fixed frame 501 gomphosis of cushion 402 at the gomphosis groove 201 inboard of assembly strip 2, make things convenient for the workman to assemble the device, after accomplishing the equipment of device, the workman docks the plug-in 202 on the installation frame 203 and the through draw-in groove 204 on the installation plate 203 with the assembly strip 2, make the installation plate 203 fix at installation frame 301, The front and the back of the buffer pad 402 and the fixing frame 501 protect the installation frame 301, the buffer pad 402 and the fixing frame 501 through the flexibility of the attaching pad 205, so as to prevent the device from loosening during long-time installation, then a worker installs the assembled installation plate 203 and the assembled strip 2 on the inner side of the lower metal frame 1, so as to ensure the connection tightness of the installation plate 203 and the assembled strip 2, so that the device is not affected by the external and swayed, the worker installs the upper metal frame 7 on the outer side of the lower metal frame 1, so that the limiting clamping groove 702 on the upper metal frame 7 is embedded with the elastic clamping piece 103, so as to ensure the connection tightness of the device, so as to facilitate the worker to assemble the device, the worker fixes the protective film 8 on the top of the upper metal frame 7 through the double-sided adhesive tape 802, the protective film 8 blocks the falling of dust above, so as to ensure the safety of the device, when the device is operated, the LED lamp is electrified to emit light, projecting and coupling light into the interior of the light guide plate (3), the light being reflected within the light guide plate (3) and emitted towards the upper surface; the reflector plate 104 reflects light reflected to the reflector plate to the light guide plate 3 again, the utilization efficiency of the light is improved, the light emitted by the light guide plate 3 is projected upwards, the light passes through the lower diffusion plate 401, a plurality of groups of scattering particles are arranged inside the lower diffusion plate 401, the light can be continuously refracted and reflected when passing through the lower diffusion plate 401, the light emitted by the light guide plate 3 is uniformly projected onto the prism sheet 4 in a concentrated mode, the prism sheet 4 is used for increasing the brightness, the light passes through the upper diffusion plate 5, the effect of optical diffusion is caused by the upper diffusion plate 5, the light source is atomized, the light source is uniformly transmitted out, the light is emitted out through the protective film 8, the upper diffusion plate 5 at the bottom is protected by the protective film 8, and the upper diffusion plate 5 is prevented from being damaged.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides an improve fixed on-vehicle backlight unit of light guide plate which characterized in that: the method comprises the following steps: the LED lamp of setting at the side to and just to the light guide plate subassembly that the LED lamp set up, the light guide plate subassembly includes: light guide plate and fixed light guide plate's subassembly, the subassembly of fixed light guide plate includes: the light guide plate comprises a lower metal frame (1), assembling strips (2) and a supporting frame (6), wherein two groups of symmetrically arranged assembling strips (2) are mounted on the inner side of the lower metal frame (1), three groups of longitudinally arranged embedding grooves (201) are formed in the inner sides of the two groups of assembling strips (2), an installing frame (301) is mounted on the inner side of each assembling strip (2) in an embedding mode through the embedding grooves (201), and the light guide plate is arranged in the installing frame (301); the inner side of the assembling strip (2) is provided with a cushion pad (402) in a jogged mode through a jogged groove (201), the cushion pad (402) is positioned above the mounting frame (301), the inner side of the assembling strip (2) is provided with a fixed frame (501) in a jogged mode through the jogged groove (201), and the fixed frame (501) is positioned above the cushion pad (402);
supporting legs (601) are arranged on the outer wall of the bottom of the lower metal frame (1), and supporting frames (6) are arranged at the bottom ends of the supporting legs (601);
an upper metal frame (7) is embedded and installed on the outer side of the top of the lower metal frame (1), and a double-faced adhesive tape (802) is bonded to the top of the upper metal frame (7).
2. The vehicular backlight module for improving the fixation of the light guide plate according to claim 1, wherein: install aluminium base board (101) down on the inboard diapire of metal frame (1), support seatpad (102) are installed at the top of aluminium base board (101), reflector plate (104) are installed at the top of supporting seatpad (102), install three group symmetric distribution's elasticity fastener (103) down on the outer wall of metal frame (1), run through on the diapire of metal frame (1) down and install conducting strip (105) that a plurality of groups equidistance were arranged, and conducting strip (105) are located the inboard of supporting legs (601), two sets of symmetric arrangement's telescopic link (106) are installed in the diapire outside of metal frame (1) down, and two sets of telescopic link (106) are located between two sets of conducting strip (105), and are two sets of binding plate (107) are all installed to the bottom of telescopic link (106).
3. The vehicular backlight module for improving the fixation of the light guide plate according to claim 1, wherein: plug-in components (202) are installed to the front end and the rear end of equipment strip (2), mounting panel (203) is installed through plug-in components (202) gomphosis to the front end and the rear end of equipment strip (2), and mounting panel (203) install the inboard of metal frame (1) down, two sets of symmetrical arrangement's draw-in groove (204) that runs through are seted up to the inboard of mounting panel (203), run through draw-in groove (204) and plug-in components (202) gomphosis each other, and are two sets of laminating pad (205) is installed to the opposite face of mounting panel (203), and laminating pad (205) are located the front and the back of installation frame (301), blotter (402) and fixed frame.
4. The vehicular backlight module for improving the fixation of the light guide plate according to claim 1, wherein: the LED lamps are arranged on two sides of the light guide plate, and light of the LED lamps enters through the light incoming surface on the side surface of the light guide plate, passes through the light guide plate and is diffused and output from the upper surface of the light guide plate;
the light guide plate assembly further includes: a diffusion sheet disposed above the light guide plate, a reflection sheet disposed below the light guide plate;
the diffusion sheet comprises an upper diffusion sheet (5) and a lower diffusion sheet (401); the inner side of the buffer pad (402) is provided with a lower diffusion sheet (401), the top of the lower diffusion sheet (401) is provided with a prism sheet (4), and the prism sheet (4) is arranged on the inner side of the buffer pad (402).
5. The vehicular backlight module for improving the fixation of the light guide plate according to claim 1, wherein: the middle position of the upper surface of the light guide plate is provided with a V-shaped groove, the bottom of the light guide plate is provided with an auxiliary LED lamp corresponding to the V-shaped groove, light emitted by the auxiliary LED lamp is upwards transmitted and is totally internally reflected by the V-shaped groove, and then the light is transmitted to the inner side surface of the light guide plate, so that the light emitting efficiency is enhanced.
6. The vehicular backlight module for improving the fixation of the light guide plate according to claim 4, wherein: an upper diffusion sheet (5) is mounted on the inner side of the fixing frame (501), and the upper diffusion sheet (5) is positioned on the inner side of the upper metal frame (7).
7. The vehicular backlight module for improving the fixation of the light guide plate according to claim 1, wherein: a fixing frame (602) is installed on the inner side of the bottom end of the supporting frame (6), a heat dissipation fan (603) is installed at the top of the fixing frame (602), and the heat dissipation fan (603) is located below the heat conducting fins (105);
regulating and controlling the cooling fan (603) according to actual cooling requirements, firstly determining a calibration working voltage of the cooling fan (603) according to the cooling requirements, wherein the calibration working voltage is determined according to the state of the cooling fan (603), and the state comprises a starting stage of the cooling fan (603), a closing stage of the cooling fan (603), and a normal motion stage and an abnormal operation stage of the cooling fan (603); and then detecting the actual working voltage of the cooling fan (603), judging whether the actual working voltage is matched with the calibrated working voltage, if not, adjusting the actual working voltage to enable the actual working voltage to be close to the calibrated working voltage, judging whether the actual rotation parameter of the cooling fan (603) is consistent with the calibrated rotation parameter, if not, adjusting the actual rotation parameter according to the calibrated rotation parameter to enable the actual rotation parameter to be close to the calibrated rotation parameter, and if so, keeping the cooling fan (603) in the existing state.
8. The vehicular backlight module for improving the fixation of the light guide plate according to claim 1, wherein: a limiting clamping groove (702) is formed in the inner side of the upper metal frame (7), and a protective pad (701) is mounted on the outer side of the upper metal frame (7);
the periphery of lower metal frame (1) sets up buffer structure, buffer structure includes: the fence is provided with a fence matched with the shape of a lower metal frame (1), the lower metal frame (1) is arranged in the fence, limiting posts are arranged at four corners of the fence, mounting grooves are formed in the limiting posts, buffer strips are correspondingly arranged among the four limiting posts, positioning pieces are arranged at corners of the buffer strips, each positioning piece comprises a positioning plate, threaded holes which are arranged in a penetrating mode are respectively formed in the upper end and the lower end of the positioning plate, the buffer strips are clamped with the lower metal frame (1) through the limiting pieces, each limiting piece comprises a limiting block and a threaded rod, the limiting blocks are arranged in a cylindrical mode, through holes are formed in the limiting blocks, the threaded rods are fixedly connected with the side faces of the limiting blocks, rubber heads are fixedly connected to one ends, far away from the limiting blocks, of the threaded rods are made of rubber products, and the buffer strips are arranged in hollow cuboids, still include the installed part, the spacing groove has been seted up to the upper end of rail, the installed part passes through spacing groove and rail joint, the installed part includes installing frame and a plurality of connecting piece, installing frame and a plurality of connecting piece fixed connection, the connecting piece is made for deformable plastics, and is a plurality of form deformation hole between the connecting piece, be provided with the stop collar on the connecting piece, the stop collar is installed through spacing hole and is rotated the cover, fixedly connected with turning block on the lateral wall of rotation cover, the turning block passes through to rotate between the inside wall of ring channel and stop collar and is connected, and is a plurality of connecting piece and deformation hole form network structure.
9. The vehicular backlight module for improving the fixation of the light guide plate according to claim 1, wherein: protective film (8) is installed at the top of double faced adhesive tape (802), and lifting belt (801) is installed on one side of protective film (8).
10. The method for installing the vehicle-mounted backlight module for improving the fixation of the light guide plate is characterized by comprising the following steps of:
s1, a worker places the device at an appointed position, the attaching plate (107) is installed at a position needing to be installed, the attaching plate (107) is fixed through a bolt, the stability of the attaching plate (107) is guaranteed, the attaching plate (107) is convenient to fix the telescopic rod (106) at the top, when the worker assembles equipment, the length of the telescopic rod (106) is adjusted according to needs, the device can be installed under different conditions, the telescopic rod (106) fixes the lower metal frame (1) at the top, the stability of the lower metal frame (1) is guaranteed, the lower metal frame (1) is prevented from shaking in the installation process, and the fixing of the lower metal frame (1) is completed;
s2, a worker fits the mounting frame (301) and the fixing frame (501) of the buffer pad (402) into the fitting groove (201) of the assembling strip (2) to facilitate the assembly of the device by the worker, after the assembly of the device is completed, a worker butt joints the through clamping groove (204) on the mounting plate (203) with the plug-in (202) on the assembly strip (2), so that the mounting plate (203) is fixed to the front and rear surfaces of the mounting frame (301), the cushion pad (402) and the fixing frame (501), the installation frame (301), the cushion pad (402) and the fixed frame (501) are flexibly protected by the attaching pad (205), the device is prevented from loosening in long-time installation, then, a worker installs the assembled mounting plate (203) and the assembled strip (2) on the inner side of the lower metal frame (1), so that the connection tightness of the mounting plate (203) and the assembled strip (2) is ensured, and the device cannot shake due to the influence of the outside;
s3, a worker installs the upper metal frame (7) on the outer side of the lower metal frame (1) so that a limiting clamping groove (702) in the upper metal frame (7) is embedded with the elastic clamping piece (103) to ensure the connection tightness of the device, the worker can conveniently assemble the device, the worker fixes the protective film (8) on the top of the upper metal frame (7) through the double-sided adhesive tape (802), and the protective film (8) blocks the falling of dust above the protective film to ensure the safety of the device;
s4, when the device is operated, the LED lamp is electrified to emit light, the light is projected and coupled into the light guide plate (3), and the light is reflected in the light guide plate (3) and is emitted to the upper surface; the light reflected to the reflecting sheet (104) is reflected to the light guide plate (3) again by the reflecting sheet (104), the using efficiency of the light is improved, the light emitted by the light guide plate (3) is projected upwards, the light passes through the lower diffusion sheet (401), multiple groups of scattering particles are arranged in the lower diffusion sheet (401), the light can be continuously refracted and reflected when passing through the lower diffusion sheet (401), the light emitted by the light guide plate (3) is intensively and uniformly projected onto the prism sheet (4), the prism sheet (4) is used for increasing the brightness, then the light passes through the upper diffusion sheet (5), the effect of optical diffusion is caused by the upper diffusion sheet (5), the light source is atomized, the light is more uniformly transmitted out, the light is emitted out through the protective film (8), the upper diffusion sheet (5) at the bottom is protected by the protective film (8), and the upper diffusion sheet (5) is prevented from being damaged.
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| CN202210113284.XA CN114415423B (en) | 2022-01-30 | 2022-01-30 | Improve fixed on-vehicle backlight unit of light guide plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210113284.XA CN114415423B (en) | 2022-01-30 | 2022-01-30 | Improve fixed on-vehicle backlight unit of light guide plate |
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| CN114415423A true CN114415423A (en) | 2022-04-29 |
| CN114415423B CN114415423B (en) | 2022-12-27 |
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| CN114415423B (en) | 2022-12-27 |
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Address after: 518000 floor 1, 2-4, and floor 1-3, No. 222-2, Buxin Road, Xinlan community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Handamei Electronics Co.,Ltd. Country or region after: China Address before: 518000 floor 1, 2-4, and floor 1-3, No. 222-2, Buxin Road, Xinlan community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HADBEST ELECTRONICS CO.,LTD. Country or region before: China |