CN201599665U

CN201599665U - LED backlight source

Info

Publication number: CN201599665U
Application number: CN2010201047021U
Authority: CN
Inventors: 曹俊威; 冯超; 郑湛金; 彭国兴; 罗勇
Original assignee: Shenzhen Hadbest Electronics Co ltd
Current assignee: Shenzhen Hadbest Electronics Co ltd
Priority date: 2010-01-26
Filing date: 2010-01-26
Publication date: 2010-10-06
Anticipated expiration: 2020-01-26

Abstract

The utility model relates to the technical field of backlight source, in particular to an LED backlight source of a vehicle-mounted stereo, an instrument, a domestic appliance, an audio, a stereo, a digital product and the like. The LED backlight source comprises a light guide plate and an LED circuit board that is arranged at one side of the light guide plate, wherein an LED lamp is arranged on one surface of the LED circuit board; an LED lamp cavity and a positioning bulge are arranged at one side of the light guide plate that is matched with the LED circuit board; the lower edge of the positioning bulge is provided with a U-shaped hook, and the upper edge thereof is provided with a bump stuck-point; an assembling notch that is matched with the U-shaped hook and the bump stuck-point is arranged on the LED circuit board; and the LED circuit board is clamped in the U-shaped hook and the bump stuck-point. With the adoption of the structure of the utility model for producing the LED backlight source, the adhesive dispensing procedure can be omitted, so as to avoid the hidden danger of the quality caused by the adhesive dispensing procedure and other problems and improve the production efficiency.

Description

A kind of LED-backlit source

Technical field

The utility model relates to the backlight technical field, relates in particular to the LED-backlit source of a kind of vehicle audio, instrument and meter, household electrical appliance, sound equipment, digital product etc.

Background technology

Backlight is the requisite parts of product such as vehicle audio, instrument and meter, household electrical appliance, sound equipment, digital product.

Shown in Fig. 1,2 and 3, backlight comprises LGP 1, is located at the led circuit plate 2 of LGP one side, the side that described LGP 1 matches with led circuit plate 2 is provided with LED lamp cavity 12 and positioning convex 11, on the one side of described led circuit plate 2, be provided with LED lamp 3, described LGP 1 one or both ends are provided with draw-in groove 13, and described draw-in groove 13 is for running through groove up and down.When assembling LGP 1 and led circuit plate 2, by the last or following draw-in groove 13 that sticks into LGP, at this moment, the led circuit plate is in active state in LGP with led circuit plate 2, therefore, also needs fix at draw-in groove place's point glue at led circuit plate two.

As from the foregoing, the time need put glue in assembling and fix, and the technology of some glue is generally and manually finishes, the deal of glue need be controlled relatively accurately, too much is difficult to do solid otherwise glue occurs through regular meeting, perhaps flows to the LGP surface to cause LGP to scrap; The led circuit plate is easy to get loose if glue spots gets very little, quality hidden danger occurs.In addition the quality of glue is also extremely important, does solid speed and wants fast, can not occur doing the phenomenon of glue volatilization atomizing when solid again, otherwise can cause that also LGP scraps.The smell of glue also can not have the pungent eye of choking, otherwise healthy unfavorable to operator.

And the coefficient of expansion of led circuit plate and LGP is inconsistent, and when high temperature or low temperature, the deformation effect product quality appears in led circuit plate easily.

The utility model content

For addressing the above problem, the utility model provides a kind of its to produce LED-backlit source simple more, more stable quality.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of LED-backlit source, comprise LGP, be located at the led circuit plate of LGP one side, the one side of described led circuit plate is provided with the LED lamp, the side that described LGP matches with the led circuit plate is provided with LED lamp cavity and positioning convex, the lower limb of described positioning convex is provided with the U-shaped grab, the top edge of described positioning convex is provided with the projection stuck point, described led circuit plate is provided with the assembling breach that matches with U-shaped grab and projection stuck point, and described led circuit integrated circuit board is combined in U-shaped grab and the projection stuck point.

For fixing and easy for installation, the sidewall two ends that cooperate with the led circuit plate on described LGP are respectively equipped with draw-in groove, the groove width of described draw-in groove is wide greater than the plate of led circuit plate, and the degree of depth of described draw-in groove is less than the thickness of LGP, and a described draw-in groove top and a side open wide.

When adopting the utility model structure assembling LGP with the led circuit plate, only the assembling procedure of promptly having finished in the U-shaped grab of LGP between the two be tipped the led circuit plate in by need.The utility model U-shaped grab and projection stuck point acting in conjunction led circuit plate make it and can not come off out, and the assembling breach that is provided with on the led circuit plate can limit led circuit plate move left and right, firmly the assembling of led circuit plate.

As from the foregoing, adopt the utility model structure to produce the LED-backlit source and can omit a glue process, thereby avoid the quality hidden danger and the other problems that bring by a glue process, and, can enhance productivity.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:

Fig. 1 is the vertical view of existing backlight LGP;

Fig. 2 is the front view of existing backlight LED circuit board;

Fig. 3 is the combining structure schematic diagram of existing backlight LGP and led circuit plate;

Fig. 4 is the perspective view of the utility model embodiment tabula rasa;

Fig. 5 is the front view of the utility model embodiment led circuit plate;

Fig. 6 is the combining structure schematic diagram of the utility model embodiment LGP and led circuit plate.

Number in the figure:

1, LGP 11, positioning convex

111, U-shaped grab 112, projection stuck point

12, LED lamp cavity 13, draw-in groove

2, led circuit plate 21, assembling breach

3, LED lamp

The specific embodiment

Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.

As Fig. 3, shown in 4 and 5, a kind of LED-backlit of the utility model source, comprise LGP 1, be located at the led circuit plate 2 of LGP one side, the one side of described led circuit plate 2 is provided with LED lamp 3, the side that described LGP 1 matches with led circuit plate 2 is provided with LED lamp cavity 12 and positioning convex 11, the lower limb of described positioning convex 11 is provided with U-shaped grab 111, the top edge of described positioning convex 11 is provided with projection stuck point 112, described led circuit plate 2 is provided with the assembling breach 21 that matches with U-shaped grab 111 and projection stuck point 112, and described led circuit plate 2 is fastened in U-shaped grab 111 and the projection stuck point 112.

For fixing and easy for installation, the sidewall two ends that cooperate with led circuit plate 2 on described LGP 1 are respectively equipped with draw-in groove 13, the groove width of described draw-in groove 13 is wide greater than the plate of led circuit plate 2, and the degree of depth of described draw-in groove 13 is less than the thickness of LGP 1, and described draw-in groove 13 tops and a side open wide.

During the utility model assembling, earlier led circuit plate 2 two are sticked into draw-in groove 13, then led circuit plate 2 is tipped gently in 111 li of the U-shaped grabs of LGP, again led circuit plate 2 is lived the projection stuck point 112 of LGP 1 by flat-top, led circuit plate 2 has just sticked in the LGP 1 like this, and is all fixing up and down.Thereby saved the some glue process, realized the yield purpose of assembling fast and raising product.

More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. LED-backlit source, comprise LGP, be located at the led circuit plate of LGP one side, the one side of described led circuit plate is provided with the LED lamp, the side that described LGP matches with the led circuit plate is provided with LED lamp cavity and positioning convex, it is characterized in that: the lower limb of described positioning convex is provided with the U-shaped grab, the top edge of described positioning convex is provided with the projection stuck point, described led circuit plate is provided with the assembling breach that matches with U-shaped grab and projection stuck point, and described led circuit integrated circuit board is combined in U-shaped grab and the projection stuck point.

2. a kind of LED-backlit according to claim 1 source, it is characterized in that: the sidewall two ends that cooperate with the led circuit plate on described LGP are respectively equipped with draw-in groove, the groove width of described draw-in groove is wide greater than the plate of led circuit plate, the degree of depth of described draw-in groove is less than the thickness of LGP, and a described draw-in groove top and a side open wide.