CN210005820U

CN210005820U - direct type backlight module heat dissipation structure

Info

Publication number: CN210005820U
Application number: CN201920542259.7U
Authority: CN
Inventors: 陈朝阳
Original assignee: Guangzhou Rainbow Electric Appliance Co Ltd
Current assignee: Guangzhou Rainbow Electric Appliance Co Ltd
Priority date: 2019-04-21
Filing date: 2019-04-21
Publication date: 2020-01-31
Anticipated expiration: 2029-04-21

Abstract

The utility model belongs to the technical field of the technique and specifically relates to straight following formula backlight unit heat radiation structure, it includes backplate and lamp strip, its characterized in that, the backplate is provided with joint spare, joint spare includes vertical setting at the vertical part of backplate top surface and the horizontal part of horizontal protrusion in vertical part upper portion, the joint hole has been seted up to the lamp strip, the joint hole includes rectangle portion, the narrow part that narrows down and the crack of big right side, the vertical part card of joint spare is in the crack, the horizontal part of joint spare supports the lamp strip top surface and is located the position of crack right-hand member, simple structure, installation and dismantlement are all very simple and convenient, through the joint of backplate and lamp strip, save steps such as having twisted the screw, do not have the influence of gasket, viscose agent etc. the lamp strip can be in close contact with the backplate, improves heat dispersion.

Description

direct type backlight module heat dissipation structure

Technical Field

The utility model belongs to the technical field of the technique and specifically relates to kind of straight following formula backlight unit heat radiation structure.

Background

The direct type liquid crystal module backlight source comprises a backboard, an LED lamp, a light-homogenizing and light-focusing functional membrane and other structural components and optical components. LED lights are often in the form of light bars.

In the prior art, the light bar is usually fixed on the top surface of the back plate through screws or adhesives, and the characteristic that the metal back plate has excellent heat conductivity can be utilized for heat dissipation of the light bar except for the fixing effect, however, the contrary is that the screw fixation inevitably needs to be reinforced by using auxiliary mechanisms such as gaskets, the heat dissipation effect is seriously reduced if the gaskets are arranged between the light bar and the back plate, the adhesives have the heat insulation performance of , and in addition, after the light bar and the back plate are adhered through the adhesives, the light bar can only be violently disassembled if the light bar needs to be replaced, and the influences on the back plate and the light bar are very large.

Disclosure of Invention

To prior art not enough, the utility model provides an be convenient for installation and dismantlement and do benefit to radiating backlight structure.

The technical scheme of the utility model is that:

direct type backlight module heat dissipation structure comprises a back plate and a light bar, and is characterized in that the back plate is provided with a clamping piece, the clamping piece comprises a vertical part vertically arranged on the top surface of the back plate and a transverse part transversely protruding out of the upper part of the vertical part, the light bar is provided with a clamping hole, the clamping hole comprises a rectangular part, a narrowing part with a large left part and a small right part and a crack, the vertical part of the clamping piece is clamped in the crack, and the transverse part of the clamping piece props against the top surface of the light bar and is positioned at the right end of the crack.

Specifically, rectangular through holes are formed in the side face of the clamping piece of the back plate, and the back plate has the advantages that the area, located on the rectangular through holes, of the back plate is punched through a die to obtain the clamping piece which lies horizontally, and then the clamping piece is vertically bent along the last edges to obtain the clamping piece.

Specifically, the equidistance is provided with the installation screw on the lamp strip for the lamp strip not only can regard as the utility model discloses a part uses, also can regard as the part on the ordinary backplate to use (ordinary backplate adopts the spiro union with the lamp strip).

Specifically, the length of the rectangular part of the clamping hole is larger than that of the clamping piece, and the length of the crack of the clamping hole is equal to that of the vertical part of the clamping piece. Therefore, the clamping piece can be conveniently inserted into the clamping hole, the clamping piece is firstly inserted into the larger rectangular part of the clamping hole and then pulled to the crack, and the operation is convenient.

Specifically, the thickness of the light bar is equal to the height of the vertical part minus the height of the horizontal part of the clamping piece.

As the utility model discloses a go into step improvements, the rectangle through-hole has just been located and has seted up fixed screw on the position of joint spare contraposition side for backplate self and the fixed of TV set casing, because the backplate is not absolute rigid bodies, through setting up the position annex at backplate and TV set casing spiro union with the position of backplate and lamp strip joint, furthest's improvement the firm degree of installation of lamp strip.

The utility model has the advantages that: simple structure, the installation is all very simple and convenient with the dismantlement, through the joint of backplate and lamp strip, has saved steps such as wrong screw, does not have the influence of gasket, adhesive etc. and the lamp strip can improve heat dispersion with backplate intimate contact.

Drawings

Fig. 1 is a schematic structural view (side view) of the present invention;

fig. 2 is a top view of the light bar of the present invention;

fig. 3 is a top view of the back plate of the present invention;

FIG. 4 is a schematic structural view of the back plate with fixing screw holes of the present invention;

FIG. 5 is a diagram of the back plate of the present invention;

fig. 6 is the whole object diagram of the present invention (the light bar has been assembled).

In the figure, 1, a back plate; 2. a light bar; 11. a rectangular through hole; 12. a clamping piece; 13. fixing screw holes; 21. a clamping hole; 22. Mounting a screw hole; 121. a vertical portion; 122. a transverse portion; 211. a rectangular portion; 212. a narrowed portion; 213. and (6) crack clamping.

Detailed Description

The following describes the embodiments of the present invention in steps with reference to the drawings:

as shown in fig. 1-3, direct type backlight module heat dissipation structures include a back plate 1 and a light bar 2, and are characterized in that the back plate 1 is provided with a clip 12, the clip 12 includes a vertical portion 121 vertically disposed on the top surface of the back plate 1 and a lateral portion 122 laterally protruding from the upper portion of the vertical portion 121, the light bar 2 is provided with a clip hole 21, the clip hole 21 includes a rectangular portion 211, a narrow portion 212 with a larger left side and a smaller right side, and a slit 213, the vertical portion of the clip 12 is clipped in the slit 213, and the lateral portion 122 of the clip 12 abuts against the top surface of the light bar 2 and is located at the right end of the slit 213.

Specifically, rectangular through holes 11 are formed in the side face of the clamping piece 12 of the back plate 1.

Specifically, the light bar 2 is provided with the mounting screw holes 22 at equal intervals ( special mounting screw holes 214 are just coincided with the left end of the rectangular portion 211 of the clamping hole, which is only coincided here, and the designer does not intend to make them coincided with , and they coincided with and do not play any technical effect).

Specifically, the length of the rectangular portion 211 of the engaging hole 21 is greater than the length of the engaging member 12, and the length of the slit 213 of the engaging hole 21 is equal to the length of the vertical portion 121 of the engaging member 12.

Specifically, the thickness of the light bar 2 is equal to the height of the vertical portion 121 minus the height of the horizontal portion 122 of the clip 12.

Example 2

As shown in fig. 4-6, the rectangular through hole 11 is provided with a fixing screw hole 13 at a position opposite to the engaging member 12.

The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed.

Claims

The heat dissipation structure of the direct type backlight module comprises a back plate and a lamp strip and is characterized in that the back plate is provided with a clamping piece, the clamping piece comprises a vertical portion vertically arranged on the top surface of the back plate and a transverse portion transversely protruding out of the upper portion of the vertical portion, the lamp strip is provided with a clamping hole, the clamping hole comprises a rectangular portion, a narrowing portion and a crack, the narrowing portion is larger in the left side and smaller in the right side, the vertical portion of the clamping piece is clamped in the crack, and the transverse portion of the clamping piece abuts against the top surface of the lamp strip and is located at the right end of the crack.
2. The heat dissipation structure of direct type backlight modules according to claim 1, wherein the back plate has rectangular through holes on the side of the clip.
3. The heat dissipation structure of direct type backlight module according to claim 2, wherein the light bars are equidistantly provided with mounting screw holes.
4. The direct type backlight module heat dissipation structure of claim 3, wherein the rectangular portion of the clip hole has a length greater than the length of the clip, and the length of the slit of the clip hole is equal to the length of the vertical portion of the clip.
5. The heat dissipation structure of direct type backlight module according to claim 4, wherein the thickness of the light bar is equal to the height of the vertical portion minus the height of the horizontal portion of the clip.
6. The heat dissipation structure of direct type backlight module as claimed in claim 5, wherein the rectangular through hole has a fastening screw hole at the opposite side of the clip.