CN207424449U

CN207424449U - A kind of LED light bar and backlight module

Info

Publication number: CN207424449U
Application number: CN201721062655.7U
Authority: CN
Inventors: 魏政伟; 张圆; 陈安稳
Original assignee: InfoVision Optoelectronics Kunshan Co Ltd
Current assignee: InfoVision Optoelectronics Kunshan Co Ltd
Priority date: 2017-08-23
Filing date: 2017-08-23
Publication date: 2018-05-29
Anticipated expiration: 2027-08-23

Abstract

The utility model discloses a kind of LED light bars, and including pedestal and multiple LED modules, the multiple LED module includes PCB matrixs, the elastic guide post group being arranged on the PCB matrixs and the LED light group being clamped between the elastic guide post group；The LED module is electrically connected with the pedestal (1) activity.Disclosed herein as well is a kind of backlight modules.The LED light bar of the utility model is applicable to different model, and different size of LED is used, while can accurately adjust LED light group spacing, simple in structure multi-purpose.

Description

A kind of LED light bar and backlight module

Technical field

The utility model is related to technical field of liquid crystal display, particularly a kind of LED light bar and backlight module.

Background technology

With the fast development of flat panel display technology, small, image quality is high, radiationless because having for liquid crystal display (LCD) And the advantages such as driving voltage is low and be widely used in various information, communication device consumer products.Due to the liquid crystal in LCD Show that panel does not shine in itself, it is therefore desirable to backlight module be set at the back side of liquid crystal display panel as backlight normally to show Diagram picture.

With the fast development of light source technology in backlight module, light emitting diode (LED) because with low energy consumption, it is small, Long lifespan, temperature rise low characteristic and gradually substitute cold-cathode fluorescence lamp (CCFL), as liquid crystal in the form of LED backlight module The backlight of showing device.LED backlight module generally includes backboard, light guide plate, LED light bar and glue frame etc..LED light bar includes printing Circuit board (PCB) and interval installation and multiple LED on PCB.

The LED light bar that current LCD backlight module uses all is regular length, and the spacing between every LED is solid It is fixed, and fixed per LED size, the lamp bars of different machines can not realize it is shared, so when new machine opens case assessment, only Thus there are bigger assessment errors, and the shape of quality can not can be in advance predicted according to similar machine come approximate evaluation Condition (hotspot, dark angle etc.), so when actually work it out need to adjust spacing between LED numbers or LED when, it is necessary to again , there is waste of resource, cost and construction cycle in design and making lamp bar.Meanwhile in use LED fraction defectives compared with Height, it is non-exchange after damage so that LED light bar waste rate is excessive, considerably increases production cost.Therefore, it is badly in need of developing one The applicable different model different size LED light of kind and LED light LED light bar adjustable in pitch.

Utility model content

In order to solve the above-mentioned problems of the prior art, the utility model provides a kind of LED light bar, not only can be effective LED light spacing adjustability problem is solved, while because it uses elastic guide post and the distance design of readable LED light group so that this practicality is new The LED light bar of type is applicable to different model, and different size of LED light can accurately adjust LED light group spacing, structure simultaneously It is simple multi-purpose.Included according to a kind of LED light bar provided by the utility model：Pedestal and multiple LED modules：The multiple LED moulds Block includes PCB matrixs, the elastic guide post group being arranged on the PCB matrixs and the LED being clamped between the elastic guide post group Lamp group；The LED module is electrically connected with the base runner.

Preferably, the pedestal includes bottom plate and along floor length direction with respect to the first barricade and second gear being arranged in parallel Wall；The PCB matrixs include bottom surface, the first side plate, the second side plate and the 3rd side plate, first side plate, second side plate Be oppositely arranged and it is vertical with the 3rd side plate respectively be fixedly connected, first side plate, second side plate and the described 3rd Side plate is fixedly connected respectively with the plane perpendicular, and fastening plates are additionally provided on the 3rd side plate of the PCB matrixs, described tight Solid plate is equipped with through hole, and the PCB matrixs are fixed on the first barricade of the pedestal by fixing piece through the through hole.

Preferably, the elastic guide post group includes the first elastic guide post and the second elastic guide post, first elastic guide post And second elastic guide post includes first portion and second portion, the second portion of first elastic guide post is arranged on institute It states in the first side plate, the second portion of second elastic guide post is arranged in second side plate, first elastic guide post The first portion of first portion and second elastic guide post be oppositely arranged on first side plate, second side plate And in the space that surrounds of the 3rd side plate.

Preferably, the pedestal is equipped with the first strip conductor, and the LED module is sliding on first strip conductor It is dynamic, and the second portion and the first strip conductor flexible lamp of first elastic guide post with second elastic guide post Connection.

Preferably, the first portion of first elastic guide post and second elastic guide post includes Part III and the 4th Part, the Part III and the Part IV nesting are telescopically connected.

Preferably, the first portion of first elastic guide post and second elastic guide post is equipped with spring.

Preferably, the upper surface of second barricade of the pedestal is equipped with scale along its length.

Preferably, the two the first strip conductors are additionally provided on the bottom plate of the pedestal, on the bottom surface of the PCB matrixs Equipped with grating reading head, the grating reading head is slidably connected with the two the first strip conductor.

Preferably, the one or both ends of the pedestal along its length are equipped with fixed block, between the adjacent LED modules The bottom plate of the pedestal is equipped with insulating layer.

The utility model also provides a kind of backlight module, and the backlight module includes light guide plate and above-mentioned LED light bar, described LED light bar is arranged on the one side of the light guide plate.

LED light bar provided by the utility model, can using elastic guide post, the first strip conductor and apart from adjustable design The parameters such as the length of enough convenient accurate spacing for adjusting LED, quantity and lamp bar, while different LED light models can be suitable for And size.Since the length of the size of LED, model, spacing and quantity and lamp bar can realize the combination of a variety of different parameters, make The LED light bar of the utility model can be suitable for different types of machines and the LED light of damage is replaced simultaneously, reduce LED light The waste of item, it is cost-effective, while can develop new architecture assessment when can at any time be adjusted according to actual effect LED quantity and The parameters such as spacing, the problems such as can effectively shortening the construction cycle and avoid the wasting of resources.On the other hand, modularized design can make LED Lamp bar realizes batch production, had not only shortened the production cycle of lamp bar but also can reduce production cost to greatest extent.

Description of the drawings

By the description referring to the drawings to the utility model embodiment, above-mentioned and other mesh of the utility model , feature and advantage will be apparent from.In the accompanying drawings：

Fig. 1 is a kind of structure diagram of LED light bar embodiment one of the utility model；

Fig. 2 is a kind of base construction schematic diagram of LED light bar embodiment one of the utility model；

Fig. 3 is a kind of fixed-block-architecture (FBA) schematic diagram of LED light bar embodiment one of the utility model；

Fig. 4 is a kind of PCB matrix structure diagrams of LED light bar embodiment one of the utility model；

Fig. 5 is a kind of elastic guide post structure diagram of LED light bar embodiment one of the utility model；

Fig. 6 is a kind of structure diagram of LED light bar embodiment two of the utility model；

Fig. 7 is a kind of structure diagram of LED light bar embodiment three of the utility model；

Specific embodiment

Hereinafter reference will be made to the drawings is more fully described the utility model.For the sake of clarity, the various pieces in attached drawing do not have Have drawn to scale.Furthermore, it is possible to some well known parts are not shown.The many specific of the utility model is described hereinafter Details, but just as the skilled person will understand, can not realize this according to these specific details Utility model.

It should be appreciated that in the structure of outlines device, it is known as when by a floor, a region positioned at another floor, another area When domain " above " or " top ", can refer to above another layer, another region or its with another layer, it is another Also comprising other layers or region between a region.Also, if device overturn, this layer, a region will be located at it is another Layer, another region " following " or " lower section ".

Fig. 1 is a kind of structure diagram of LED light bar embodiment one of the utility model；Fig. 2 is a kind of LED of the utility model The base construction schematic diagram of lamp bar embodiment one；Fig. 3 is that a kind of fixed-block-architecture (FBA) of LED light bar embodiment one of the utility model shows It is intended to；As shown in FIG. 1 to 3：A kind of LED light bar 100 of the utility model embodiment one, including pedestal 1 and LED module 2, base Seat 1 is 1, and LED module 2 is multiple, and multiple LED modules 2 include PCB matrixs 21, the elastic guide post being arranged on PCB matrixs 21 Group 211 and the LED light group 22 being clamped between elastic guide post group 211；LED module 2 is electrically connected with 1 activity of pedestal.Pedestal 1 includes Bottom plate 103 and the first barricade 101 and the second barricade 102, LED module 2 that are arranged in parallel relatively along 103 length direction of bottom plate are set In the space formed in bottom plate 103, the first barricade 101 and the second barricade 102.

In other embodiments, the one or both ends of pedestal 1 along its length are additionally provided with fixed block 3, specific such as Fig. 1 Shown in~Fig. 3, the first barricade 101 is equipped with the first groove 1011, the second barricade 102 is equipped with the second groove 1021, fixed block 3 Fixed plate 33 two sides on opposite be equipped with the first convex block 31, the second convex block 32.The width of fixed plate 33 and the first barricade 101 and the second spacing between barricade 102 it is equal, the first convex block 31 and the first groove 1011, the second convex block 32 and the second groove 1021 is equal in magnitude so that when 100 each parameter adjustment of LED light bar finishes, fixed block 3 can be fastened on one end or two of pedestal 1 End, so that the LED module 2 in LED light bar 100 will not skid off.

Fig. 4 is a kind of PCB matrix structure diagrams of LED light bar embodiment one of the utility model；Fig. 5 is the utility model A kind of elastic guide post structure diagram of LED light bar embodiment one；It please join Fig. 4 and Fig. 5, PCB matrixs 21 include bottom surface 217, the Side plate 212, the second side plate 213 and the 3rd side plate 214, the first side plate 212, the second side plate 213 are oppositely arranged and respectively with Three side plates 214 are vertically fixedly connected, and the first side plate 212, the second side plate 213 and the 3rd side plate 214 are vertical with bottom surface 217 solid respectively Fixed connection.Elastic guide post group 211 is connected with the first side plate 212, the second side plate 213.Wherein elastic guide post group 211 includes the first bullet Property 221 and second elastic guide post 222 of guide post.First elastic guide post 221 and the second elastic guide post 222 are divided into first along AA directions Points 2111 and second portion 2112, the second portion 2112 of the first elastic guide post 221 be arranged in the first side plate 212, the second bullet The second portion 2112 of property guide post 222 is arranged in the second side plate 213, the first portion 2111 of the first elastic guide post 221 and The first portion 2111 of two elastic guide posts 222 is oppositely arranged on the first side plate 212, the second side plate 213 and the 3rd side plate 214 and surrounds Space in.In other embodiments, can also be led in first portion's 2111 outermost end setting of the first elastic guide post 221 Electric block 2211 sets conducting block 2221, the preferred electric conductivity of conducting block in 2111 outermost end of first portion of the second elastic guide post 222 It can good metal.When the electrode of LED light group 22 is in side, conducting block can be set to cuboid, when the electrode of LED light group 22 In bottom surface, conducting block may be configured as bending-like, so that elastic guide post can come into full contact with and further with the electrode of LED light group 22 Strengthen the electric conductivity of LED module 2 and pedestal 1.

It please join Fig. 1, Fig. 4 and Fig. 5, LED light group 22 is clamped between elastic guide post group 211, specially puts LED light group 22 It puts between the first elastic guide post 221 and the second elastic guide post 222, and the first portion 2111 of the first elastic guide post 221 and LED The first electrode of lamp group 22 is inconsistent, and the first portion 2111 of the second elastic guide post 222 and the second electrode of LED light group 22 offset It touches.LED module 2 is electrically connected with 1 activity of pedestal specifically, being equipped with the first strip conductor 11 on pedestal 1, LED module 2 is first It slides to realize that LED module spacing adjusts on strip conductor 11, while the first elastic guide post 221 and the second elastic guide post 222 Second portion 2112 is electrically connected with first strip conductor 11.In the present embodiment, the first strip conductor 11 can be in pedestal 1 Upper printed circuit is formed, and also on pedestal 1 metal wire can be set to be formed.In addition it is additionally provided on the 3rd side plate 214 of PCB matrixs 21 Fastening plates 215, fastening plates 215 are equipped with through hole 2151, when LED module 2 is adjusted to need position, are passed through with fixing piece 216 PCB matrixs 21 are fixed on the first barricade 101 of pedestal 1 by through hole 2151, meanwhile, 2 position of LED module or subtract when needing to adjust When lacking 2 quantity of LED module, fixing piece 216 is removed, move 2 position of LED module or directly takes LED module 2 from pedestal 1 It walks, in the present embodiment, the preferred screw of fixing piece.

In the present embodiment, elastic guide post will cause LED light group 22 to be electrically connected with the first strip conductor 11, then elastic guide post It needs to select the good material of electric conductivity, while also to meet different model, the clamping of different size of LED light, then elastic conducting The first portion 2111 of column need to meet length it is adjustable, it is scalable at the same again have certain hardness requirement.The then material of elastic guide post The high molecular material or metal for the conductive energy for meeting above-mentioned requirements can be used in matter.In the present embodiment, elastic guide post can Using some easy conductive metals such as copper, iron, gold, silver, Lv, by first of the first elastic guide post 221 and the second elastic guide post 222 It is Part III 2113 and Part IV 2114 to divide 2111 points, and Part III 2113 and 2114 nesting of Part IV are telescopically connected. In this way, first portion 2111 had not only met conductive demand, but also meet scalable demand simultaneously.In other embodiment, may be used also As shown in Figure 1 in 2111 outside nested springs 211 of elastic guide post first portion, spring 211, which can further enhance elasticity, causes The retractility of a part 2111.Second portion 2112 can directly use guide post made of above-mentioned metal, can be configured as with bullet The guide post of property, so enables elastic guide post be pressed together under the action of elastic force on the first strip conductor 11 of pedestal 1, with true Protect the stability of electrical connection.

In addition the first portion 2111 of elastic guide post and second portion 2112 can vertical connection also out of plumb is connected, in order to It is simple for process and convenient for contact, prioritizing selection vertical connection.The second portion 2111 of elastic guide post is located in side plate, but and side plate Angle does not limit, and only need to penetrate side plate bottom surface and be contacted with the first strip conductor 11.

In addition, it is also set on the bottom plate 103 of pedestal 1 between a kind of 100 adjacent LED modules 2 of LED light bar of the utility model There is insulating layer (being not drawn into figure).The insulating layer may be such that the first strip conductor 11 is not scratched by external force, not oxidation by air, into And the electric conductivity of the first strip conductor 11 is not destroyed.The insulating layer can print after 100 each parameter adjustment of LED light bar is good Insulating layer directly attaches insulating tape.

It is designed according to LED light bar provided by the utility model using elastic guide post and the first strip conductor so that LED's The Parameter adjustables such as the length of spacing, quantity and lamp bar are whole, while can be suitable for different LED light models and size.Make the utility model LED light bar can be suitable for different types of machines simultaneously convenient for being replaced to the LED light of damage, reduce the waste of LED light bar, save About cost, while the parameters such as quantity and the spacing of LED can be at any time adjusted according to actual effect in the assessment of exploitation new architecture, The problems such as construction cycle can effectively being shortened and avoid the wasting of resources.On the other hand, modularized design can make LED light bar realize batch Production, had not only shortened the production cycle of lamp bar but also can reduce production cost to greatest extent.

Fig. 6 is a kind of structure diagram of LED light bar embodiment two of the utility model, illustrates this practicality with reference to Fig. 6 New second embodiment, most of structure, connection mode, function, material are identical with embodiment one in the present embodiment, do not do herein It is extra to repeat.

Unlike above-mentioned first embodiment, the upper surface of the second barricade 102 of the present embodiment pedestal 1 is along its length It is additionally provided with scale 1021.It can be by reading the scale on its corresponding second barricade 102 when LED module 2 is adjusted into row position Value and conveniently know its position on pedestal 1, and then can accurately easily into row position adjust.

In the present embodiment, can also be identical with embodiment one add fixed block 3 and insulating tape, position, structure, principle And effect is identical, and extra repeat no longer is carried out secondary.

Fig. 7 is a kind of structure diagram of LED light bar embodiment three of the utility model, illustrates this practicality with reference to Fig. 7 New 3rd embodiment, most of structure, connection mode, function, material are identical with embodiment one in the present embodiment, do not do herein It is extra to repeat.

Unlike above-mentioned first embodiment, the second strip conductor is additionally provided on the bottom plate 103 of the present embodiment pedestal 1 Grating reading head 218 is additionally provided on the bottom surface 217 of 12, PCB matrixs 21, grating reading head 218 is located on bottom surface 217, and with Two strip conductors 12 slide electrical connection.This grating reading head 218 can set a reference point, can using first LED module 2 as Reference point, in remaining 2 moving process of LED module grating reading head 218 can show at any time the relative distance away from reference point and then It can accurately easily be adjusted into row position.

In the present embodiment, increase fixed block 3 and insulating tape that can also be identical with embodiment one, position, structure, principle And effect is identical, and extra repeat no longer is carried out secondary.

LED light bar according to the utility model embodiment one to three is also applied to a kind of backlight module, the backlight module bag Light guide plate and above-mentioned LED light bar 100 are included, LED light bar 100 is arranged on the one side of light guide plate.

It should be noted that herein, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that Also there are other identical elements in process, method, article or equipment including the element.

Embodiment according to the utility model as described above, these embodiments there is no all details of detailed descriptionthe, Also it is only the specific embodiment not limit the utility model.Obviously, as described above, many modification and change can be made Change.This specification is chosen and specifically describes these embodiments, and being should in order to preferably explain the principle and reality of the utility model With so that skilled artisan can repairing using the utility model and on the basis of the utility model well Change use.The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. a kind of LED light bar (100), which is characterized in that including pedestal (1) and multiple LED modules (2), the multiple LED module (2) include PCB matrixs (21), the elastic guide post group (211) being arranged on the PCB matrixs (21) and be clamped in the elastic conducting LED light group (22) between column group (211)；The LED module (2) is electrically connected with the pedestal (1) activity.

2. LED light bar according to claim 1, which is characterized in that the pedestal (1) includes bottom plate (103) and along bottom plate (103) opposite the first barricade (101) being arranged in parallel of length direction and the second barricade (102)；The PCB matrixs (21) include bottom Face (217), the first side plate (212), the second side plate (213) and the 3rd side plate (214), first side plate (212), described second Side plate (213) be oppositely arranged and it is vertical with the 3rd side plate (214) respectively be fixedly connected, it is first side plate (212), described Second side plate (213) and the 3rd side plate (214) is vertical with the bottom surface (217) respectively is fixedly connected, the PCB matrixs (21) fastening plates (215) are additionally provided on the 3rd side plate (214), the fastening plates (215) are equipped with through hole (2151), Gu Determine the first barricade (101) that the PCB matrixs (21) are fixed to the pedestal (1) through the through hole (2151) by part (216) On.

3. LED light bar according to claim 2, which is characterized in that the elastic guide post group (211) includes the first elastic conducting Column (221) and the second elastic guide post (222), first elastic guide post (221) and second elastic guide post (222) include First portion (2111) and second portion (2112), the second portion (2112) of first elastic guide post (221) are arranged on institute It states in the first side plate (212), the second portion (2112) of second elastic guide post (222) is arranged on second side plate (213) in, first of the first portion (2111) of first elastic guide post (221) and second elastic guide post (222) (2111) is divided to be oppositely arranged on first side plate (212), second side plate (213) and the 3rd side plate (214) to surround Space in.

4. LED light bar according to claim 3, which is characterized in that the pedestal (1) is equipped with the first strip conductor (11), the LED module (2) is slided on first strip conductor (11), first elastic guide post (221) and described the The second portion (2112) of two elastic guide posts (222) is electrically connected with first strip conductor (11) activity.

5. LED light bar according to claim 3, which is characterized in that first elastic guide post (221) and second bullet Property guide post (222) first portion (2111) include Part III (2113) and Part IV (2114), the Part III (2113) and the Part IV (2114) nesting is telescopically connected.

6. LED light bar according to claim 5, which is characterized in that first elastic guide post (221) and second bullet Property guide post (222) first portion (2111) be equipped with spring (223).

7. LED light bar according to claim 2, which is characterized in that second barricade (102) of the pedestal (1) Upper surface is equipped with scale (1021) along its length.

8. LED light bar according to claim 2, which is characterized in that the bottom plate (103) of the pedestal (1) is equipped with Second strip conductor (12), the bottom surface (217) of the PCB matrixs (21) are equipped with grating reading head (218), the grating Reading head (218) is slidably connected with second strip conductor (12).

9. LED light bar according to claim 2, which is characterized in that the one or both ends of the pedestal (1) along its length Equipped with fixed block (3), the bottom plate (103) of the pedestal (1) between the adjacent LED modules (2) is equipped with insulating layer.

10. a kind of backlight module, which is characterized in that the backlight module includes any one of light guide plate and claim 1-9 institute The LED light bar stated, the LED light bar are arranged on the one side of the light guide plate.