CN214700410U

CN214700410U - Structure for replacing vehicle-mounted backlight silica gel pad

Info

Publication number: CN214700410U
Application number: CN202120782292.4U
Authority: CN
Inventors: 严俊; 陈明波; 陈照涛; 周鹏程
Original assignee: Xinyang Central Semiconductor Technology Co ltd
Current assignee: Xinyang Central Semiconductor Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-11-12
Anticipated expiration: 2031-04-16

Abstract

The utility model relates to a structure for replacing a vehicle-mounted backlight silica gel pad, which comprises a lower shell and is characterized in that a rectangular rubber frame is fixedly connected in the lower shell, the rubber frame consists of three flanges and a rectangular bottom plate, and the three flanges are respectively superposed with two short edges and a long edge of the bottom plate and are upwards protruded; the problem that the production efficiency is low due to the fact that the unit price of a silica gel pad part is high and the silica gel pad part is inconvenient to assemble in the prior art is effectively solved, and meanwhile, the problem that the backlight source assembly dissipates heat and avoids dust is also solved; the dust-proof heat dissipation assembly arranged outside the backlight module can dissipate heat of the backlight module, and can prevent external dust from entering the backlight module and affecting the light emitting effect of the backlight module.

Description

Structure for replacing vehicle-mounted backlight silica gel pad

Technical Field

The utility model relates to a vehicle-mounted backlight product fixing device technical field, especially a replace structure of on-vehicle silica gel pad in a poor light.

Background

On-vehicle backlight product, light guide plate and gluey frame all need have silica gel pad part fixed, and the effect of this silica gel pad part is: the rubber frame and the lower iron as well as the rubber frame and the light guide plate of the product are fixed, so that abnormal sound is prevented from occurring after the product is assembled; in addition, backlight product is when doing relevant high low temperature reliability experiment, through the elastic characteristic of silica gel pad, can guarantee that the frame is glued to the light guide plate can not take place to deform because of the relation expend with heat and contract with cold of temperature when high low temperature and lead to badly.

However, the silicone rubber pad is expensive in unit price, complex in operation and not easy to assemble in the production process, which results in a large amount of labor hour, high reject ratio and low production efficiency, so that a substitute product is needed.

In addition, the vehicle-mounted backlight product easily generates a large amount of heat in the working process, harm is caused if the heat is excessively accumulated, and the light emitting effect of the backlight component is influenced if the backlight component is polluted by tiny dust.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a structure for replacing a vehicle-mounted backlight silica gel pad, which effectively solves the problems of low production efficiency caused by expensive unit price and inconvenient assembly of silica gel pad parts in the prior art, and simultaneously solves the problems of heat dissipation and dust avoidance of a backlight source component, and the technical proposal for solving the problems is that the structure comprises a lower shell, and is characterized in that a rectangular rubber frame is fixedly connected in the lower shell, the rubber frame consists of three flanges and a rectangular bottom plate, the three flanges are respectively superposed with two short edges and a long edge of the bottom plate and are upwards protruded, a plurality of elastic clamping points are respectively arranged on the inner side and the outer side of at least one short flange and the inner side and the outer side of the long flange, the elastic clamping points on the inner side and the outer side of each flange are staggered, a backlight source component is fixedly connected on the rubber frame, the outer side of the backlight source component is abutted to the elastic clamping points positioned on the inner side of the rubber frame, inferior valve medial surface with be located the inboard elasticity stuck point butt of gluey frame, inferior valve outside dismantlement is connected with the shell body, and the shell body outside dismantlement is connected with the fastening casing, is equipped with on the shell body down and keeps away dirt heat abstractor.

Preferably, the backlight source component comprises a reflector fixedly connected to the upper end of the bottom plate, a light guide plate is fixedly connected to the upper end of the reflector, a lower diffusion sheet is fixedly connected to the upper end of the light guide plate, a prism sheet is fixedly connected to the upper end of the lower diffusion sheet, an upper diffusion sheet is fixedly connected to the upper side of the prism sheet, a lamp strip is fixedly connected to the side face, opposite to the long flange, of the lower diffusion sheet, and a plurality of light emitting sources are uniformly distributed on the lamp strip.

Preferably, the outer side surface of the backlight source assembly abuts against the elastic clamping point positioned on the inner side of the rubber frame, and specifically comprises: the light guide plate is abutted against the elastic clamping points.

As preferred, keep away dirt heat abstractor includes that the logical groove of rectangle is seted up at the bottom plate middle part makes reflector plate lower extreme local expose, the internal bottom surface middle part of inferior valve is equipped with the radiating groove, reflector plate lower extreme center department is equipped with temperature detect switch, the regional fixedly connected with a plurality of electronic telescopic links of being connected with the temperature detect switch electricity that the reflector plate lower extreme is located logical inslot, the common fixedly connected with of free end of each electronic telescopic link can shutoff radiating groove open-ended light screen, radiating groove bottom surface middle part rotates and is connected with a plurality of just to leading to the heat dissipation fan that just is connected with the temperature detect switch electricity, set up a plurality of louvres that run through casing down on the radiating groove bottom surface, two long limit punishments that correspond logical groove on the terminal surface do not are equipped with discharge electric plate and laying dust electroplax down.

Preferably, the material of the elastic clamping points is the same as that of the rubber frame.

Preferably, a plurality of inner clamping blocks are uniformly distributed on four outer side surfaces of the lower shell, a plurality of inner through holes corresponding to the inner clamping blocks one to one are uniformly distributed on four side surfaces of the outer shell, and the inner clamping blocks are embedded with the inner through holes to fixedly connect the lower shell and the outer shell.

Preferably, a plurality of outer clamping blocks are uniformly distributed on four outer side surfaces of the outer shell, a plurality of outer through holes corresponding to the outer clamping blocks one to one are uniformly distributed on four side surfaces of the fastening shell, and the outer clamping blocks are embedded with the outer through holes to fixedly connect the outer shell and the fastening shell.

The utility model has the advantages that:

the elastic clamping point structure replaces the functional characteristics of a silica gel pad component in the traditional technology, so that the fixing effect between the light guide plate and the gel frame can meet the use requirement, the assembly process flow and the production efficiency are reduced, and the material cost of the product is saved; the dust-proof heat dissipation assembly arranged outside the backlight module can dissipate heat of the backlight module, and can prevent external dust from entering the backlight module and affecting the light emitting effect of the backlight module.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is an enlarged view of the region C in the exploded view of the present invention.

Fig. 3 is a first perspective full-section view of the present invention.

Fig. 4 is an enlarged view of a region a in the first perspective full-section view of the present invention.

Fig. 5 is an enlarged view of the area B in the first perspective full-section view of the present invention.

Fig. 6 is a perspective view of the rubber frame of the present invention.

Fig. 7 is a second perspective sectional view of the present invention.

Fig. 8 is a perspective view of the dust-proof heat dissipation device of the present invention.

Fig. 9 is a third view angle partial view of the dust-proof heat dissipation device of the present invention.

Fig. 10 is a fourth view of the dust-proof heat dissipation device of the present invention.

Fig. 11 is a perspective view of a fifth viewing angle of the present invention.

Fig. 12 is a perspective view of a sixth viewing angle of the present invention.

Reference numerals

1. The backlight module comprises a lower shell, 2 parts of a rubber frame, 3 parts of flanges, 4 parts of a bottom plate, 5 parts of elastic clamping points, 6 parts of a backlight source component, 7 parts of an outer shell, 8 parts of a fastening shell, 9 parts of a reflector plate, 10 parts of a light guide plate, 11 parts of a lower diffusion plate, 12 parts of a prism sheet, 13 parts of an upper diffusion plate, 14 parts of a lamp strip, 15 parts of a light emitting source, 16 parts of a through groove, 17 parts of a heat dissipation groove, 18 parts of a temperature control switch, 19 parts of an electronic telescopic rod, 20 parts of a light shielding plate, 21 parts of a heat dissipation fan, 22 parts of heat dissipation holes, 23 parts of a discharge electric plate, 24 parts of a dust collection electric plate, 25 parts of inner clamping blocks, 26 parts of inner through holes, 27 parts of outer clamping blocks and 28 parts of outer through holes.

Detailed Description

The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 12.

In the first embodiment, when the backlight module 6 is used, the backlight module 6 is primarily fixedly connected to the bottom plate 4 of the rubber frame 2 through the reflective plate, in order to prevent abnormal noise or failure of the backlight product after assembly, a silica gel pad component is further clamped and fixed between the rubber frame 2 and the backlight module 6, however, the silica gel pad component has high cost and complicated assembly procedure operation, which reduces the production efficiency, in order to improve the defect, the utility model has the advantages that the inner side and the outer side of the rib 3 are both provided with the elastic clamping points 5, the elastic clamping points 5 inside the rib 3 are in butt fit with the outer side of the light guide plate 10 of the backlight module 6, and according to the installation position of the backlight module 6, one short rib 3 can be selected to be provided with the elastic clamping points 5 on the rib 3 with a long matching function, or two short ribs 3 can be provided with the elastic clamping points 5 on the rib 3 with a long matching function, but should satisfy elasticity stuck point 5 and glue frame 2 cooperation can chucking backlight unit 6, and fixed effect between cooperation reflector plate 9 and the bottom plate 4 of gluing frame 2 makes backlight unit 6 can be fixed completely, avoids its equipment back to appear abnormal sound or bad, is located the elasticity stuck point 5 in the 3 outsides of flange and lower casing 1's medial surface butt, has further strengthened the fastening effect who glues frame 2 and casing 1 down, avoids appearing bad product, and is right the utility model discloses inside parts protects, still is equipped with shell body 7 and fastening casing 8, makes the utility model discloses the cooperation display screen can form the enclosed construction.

In the second embodiment, on the basis of the first embodiment, the light emitting sources 15 on the light strips 14 are LED light sources, and are opposite to one side edge of the light guide plate 10, light emitted by the light emitting sources 15 penetrates through the light guide plate 10, and under the combined action of the reflective sheet 9, the lower diffusion sheet 11, the prism sheet 12, and the upper diffusion sheet 13, the refractive index and the light transmittance of the whole backlight module 6 both meet requirements, so that the produced backlight product can meet the use requirements.

In the third embodiment, on the basis of the first embodiment, the elastic clamping points 5 may also be disposed on the outer side surface of the light guide plate 10, and are in abutting fit with the inner side surface of the rib 3, which may also meet the production requirements.

Fourth embodiment, on the basis of the first embodiment, in order to prevent the backlight module 6 from losing heat in time and damaging itself or other components, a dust-proof heat dissipation device is provided, initially, the electronic expansion rod 19 is in an extended state and the light shielding plate 20 blocks the heat dissipation groove 17, the heat dissipation fan 21 is in a non-working state, when the temperature of the reflector 9 reaches the set temperature of the temperature control switch 18, the temperature control switch 18 is turned on and controls the electronic expansion rod 19 to contract so that the light shielding plate 20 moves close to the reflector 9 and does not block the heat dissipation groove 17, and the heat dissipation fan 21 starts to rotate under the control of the temperature control switch 18, so that heat can be dissipated rapidly through the heat dissipation holes 22, and simultaneously, in order to prevent impurities such as dust in the air from entering the backlight module 6 and accumulating thereon during the heat dissipation process and further affecting the performance thereof, a discharge electric plate 23 and a dust accumulation electric plate 24 are provided on the lower housing 1, an electrostatic field exists between the discharge electric plate 23 and the dust-accumulation electric plate 24, the gas containing dust is ionized when passing through the electrostatic field, and after dust particles and negative ions are combined to be charged negatively, the gas tends to discharge on the surface of the dust-accumulation electric plate 24 and is deposited on the dust-accumulation electric plate 24, so that the dust is prevented from entering the backlight source assembly 6 through the heat dissipation holes 22.

In the fifth embodiment, on the basis of the first embodiment, the elastic clamping points 5 are made of the same material as the rubber frame 2, so that the elastic clamping points 5 and the rubber frame 2 have the same shrinkage rate when deformed by heat, and can be always tightly attached to the light guide plate 10.

Sixth embodiment, on the basis of first embodiment, in order to make the utility model discloses can be airtight and stable in structure, at casing 1 outside fixedly connected with shell body 7 down, thereby the fastening connection can be realized to interior fixture block 25 on the lower casing 1 and the gomphosis of interior through-hole 26 on the shell body 7, the fixed casing of shell body 7 outside fixedly connected with, thereby outer fixture block 27 on the shell body 7 can realize fastening connection with the gomphosis of outer through-hole 28 on the fastening casing 8.

Claims

1. A structure for replacing a vehicle-mounted backlight silica gel pad comprises a lower shell (1) and is characterized in that a rectangular rubber frame (2) is fixedly connected in the lower shell (1), the rubber frame (2) is composed of three flanges (3) and a rectangular bottom plate (4), the three flanges (3) are respectively superposed with two short sides and a long side of the bottom plate (4) and protrude upwards, a plurality of elastic clamping points (5) are respectively arranged on the inner side and the outer side of at least one short flange (3) and the inner side and the outer side of the long flange (3), the elastic clamping points (5) on the inner side and the outer side of each flange (3) are arranged in a staggered manner, a backlight source assembly (6) is fixedly connected in the rubber frame (2), the outer side of the backlight source assembly (6) is abutted to the elastic clamping points (5) on the inner side of the rubber frame (2), the inner side of the lower shell (1) is abutted to the elastic clamping points (5) on the inner side of the rubber frame (2), the outer side of the lower shell (1) is detachably connected with an outer shell (7), the outer side of the outer shell (7) is detachably connected with a fastening shell (8), and the lower shell (1) is provided with a dust-avoiding heat-radiating device.

2. The structure for replacing the vehicular backlight silica gel pad is characterized in that the backlight source assembly (6) comprises a bottom plate (4) fixedly connected with a reflector plate (9) at the upper end thereof, a light guide plate (10) fixedly connected with the upper end of the reflector plate (9), a lower diffusion plate (11) fixedly connected with the upper end of the light guide plate (10), a prism sheet (12) fixedly connected with the upper end of the lower diffusion plate (11), an upper diffusion plate (13) fixedly connected with the upper side of the prism sheet (12), a lamp strip (14) fixedly connected with the lower shell (1) on the side surface opposite to the long flange (3), and a plurality of light emitting sources (15) uniformly distributed on the lamp strip (14).

3. The structure for replacing the vehicular backlight silica gel pad according to claim 1, wherein the outer side surface of the backlight source assembly (6) is abutted to the elastic clamping point (5) located on the inner side of the rubber frame (2), and specifically comprises: the light guide plate (10) is abutted against the elastic clamping points (5).

4. The structure for replacing the vehicular backlight silica gel pad according to claim 1, wherein the dust-proof and heat-dissipating device comprises a bottom plate (4) having a rectangular through groove (16) at the middle portion thereof for partially exposing the lower end of the reflector (9), a heat-dissipating groove (17) at the middle portion of the inner bottom surface of the lower housing (1), a temperature control switch (18) at the center of the lower end of the reflector (9), a plurality of electronic telescopic rods (19) electrically connected with the temperature control switch (18) and fixedly connected to the region of the lower end of the reflector (9) in the through groove (16), a plurality of heat-dissipating fans (21) directly facing the through groove (16) and electrically connected with the temperature control switch (18) and fixedly connected to the free ends of the electronic telescopic rods (19) together for blocking the opening of the heat-dissipating groove (17), a plurality of heat-dissipating holes (22) formed on the inner bottom surface of the heat-dissipating groove (17) and penetrating through the lower housing (1), two long edges of the lower end surface of the lower shell (1) corresponding to the through groove (16) are respectively provided with a discharge electric plate (23) and a dust-collecting electric plate (24).

5. The structure for replacing the vehicular backlight silica gel pad according to claim 1, wherein the elastic clamping points (5) are made of the same material as the rubber frame (2).

6. The structure for replacing the vehicle-mounted backlight silica gel pad is characterized in that a plurality of inner clamping blocks (25) are uniformly distributed on four outer side surfaces of the lower shell (1), a plurality of inner through holes (26) corresponding to the inner clamping blocks (25) in a one-to-one mode are uniformly distributed on four side surfaces of the outer shell (7), and the inner clamping blocks (25) are embedded with the inner through holes (26) to enable the lower shell (1) to be fixedly connected with the outer shell (7).

7. The structure for replacing the vehicle-mounted backlight silica gel pad according to claim 1, wherein a plurality of outer clamping blocks (27) are uniformly distributed on four outer side surfaces of the outer shell (7), a plurality of outer through holes (28) corresponding to the outer clamping blocks (27) one by one are uniformly distributed on four side surfaces of the fastening shell (8), and the outer clamping blocks (27) are embedded with the outer through holes (28) to fixedly connect the outer shell (7) and the fastening shell (8).