CN208026906U - A kind of backlight module - Google Patents
A kind of backlight module Download PDFInfo
- Publication number
- CN208026906U CN208026906U CN201820590500.9U CN201820590500U CN208026906U CN 208026906 U CN208026906 U CN 208026906U CN 201820590500 U CN201820590500 U CN 201820590500U CN 208026906 U CN208026906 U CN 208026906U
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- lower frame
- backlight module
- hole
- riveting column
- light component
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Abstract
The utility model provides a kind of backlight module, including leaded light component and lower frame, and the leaded light component is placed in the lower frame；The lower frame includes lower frame main body, turns up frame wall on lower frame main body setting side and nothing turns up frame wall；An at least riveting column, the riveting column and the leaded light component location fit are riveted on the lower frame main body.Fixed hole and movable through-hole be set on the leaded light component, the fixed hole and the movable through-hole with the riveting column location fit.Locating slot, the locating slot and the riveting column location fit are set in the movable through-hole on the light guide plate；It is connected by attachment between the activity through-hole and the locating slot, preformed hole is formed between the attachment.The frame wall for placing lamp bar is arranged on lower frame, remaining side do not turn up, save space, it can be achieved that narrow frame design object；Riveting column is riveted on lower frame, realizes the location fit with leaded light component, ensures the correct assembly of leaded light component, ensures backlight effect.
Description
Technical field
The utility model is related to backlight technology fields, and in particular to a kind of backlight module.
Background technology
The lower frame of metal material is typically necessary in order to there is good heat dissipation for vehicle-mounted backlight module.Lower frame thickness
The thickness of generally 0.6 ~ 1.2mm, lower frame are thicker, and heat dissipation performance is better.In order not to increase the whole ruler of vehicle-mounted backlight module
Very little, the side of lower frame should simplify design, reduce side structure size.If lower frame is turned up to side, side can be made to have more
The width of one lower frame material thickness is unfavorable for realizing the target of narrow frame in this way.Meanwhile it needing to position diaphragm in narrow frame.
Location structure is set on lower frame, using injection molding positioning column, the problems such as overlap, shrink, starved easily occurs.Note
It is mold to mould molding crucial utensil, but the period of design, manufacture and the die trial of mold is longer, goes into operation slower, is unfavorable for product
Production and selling.Using punch forming positioning column, be suitable for the larger production of batch, for single-piece, small lot production by
Certain limitation.Mold used in punch process is typically complex, and the manufacturing cycle is long, and cost is higher.
Riveting is rivet interlacement, is using axial force that nail rod in part rivet hole is upset and forms ailhead, makes multiple zero
The method that part is connected can be divided into activity riveting, fixed riveting and sealing riveting.Riveting is not easy to loosen and dismantle, than stronger.
Utility model content
In view of the above-mentioned problems, the utility model is the technical issues of solution：
The utility model provides a kind of backlight module, and lower frame turns up the frame wall to be formed and place lamp bar on one side, remaining side is not
Turn up, save space, it can be achieved that narrow frame design object；Riveting column is riveted on lower frame, realizes the positioning with leaded light component
Cooperation ensures the correct assembly of leaded light component, ensures backlight effect.
In order to solve the above-mentioned technical problem, the solution of the utility model is：
A kind of backlight module, including leaded light component and lower frame, the leaded light component are placed in the lower frame；The lower frame includes
Lower frame main body turns up frame wall on lower frame main body setting side and nothing turns up frame wall；At least one is riveted on the lower frame main body
Riveting column, the riveting column and the leaded light component location fit.
As a kind of improvement of backlight module provided by the utility model, end face and the backlight module of the riveting column
Center inner surface is in contact.
As a kind of improvement of backlight module provided by the utility model, be arranged on the leaded light component fixed hole and
Movable through-hole, the fixed hole and the movable through-hole with the riveting column location fit.
As a kind of improvement of backlight module provided by the utility model, the fixed hole and the riveting column laterally and
Longitudinal fit clearance is identical, and the longitudinal size of the activity through-hole is more than the longitudinal size of the fixed hole.
As a kind of improvement of backlight module provided by the utility model, the leaded light component includes at least light guide plate.
As a kind of improvement of backlight module provided by the utility model, it is arranged in the movable through-hole on the light guide plate
Locating slot, the locating slot and the riveting column location fit；Connected by attachment between the activity through-hole and the locating slot
It connects, preformed hole is formed between the attachment.
As a kind of improvement of backlight module provided by the utility model, the longitudinal size of the locating slot is more than the riveting
The outer diameter of column.
As a kind of improvement of backlight module provided by the utility model, lamp bar is arranged in the bottom that frame wall is turned up on the side
Stretch out hole.
As a kind of improvement of backlight module provided by the utility model, is turned up on the side and buckle is set on frame wall,
It is fastened with the buckle mouth on the backlight module center.
As a kind of improvement of backlight module provided by the utility model, the center of the backlight module and the lower frame
Side and bottom surface are coated with tipping paper.
Compared with prior art, the utility model has the beneficial effects that：
Positioning column is riveted on lower frame, convenient for the location fit with leaded light component；Riveting column is not easy to loosen, than stronger；
Lower frame is turned up on one side, remaining side is not turned up, and structure is simplified, save space, it can be achieved that narrow frame design object；On lower frame
Setting buckle, makes it be fastened with the center；FPC extending ports are set on lower frame, are connected convenient for drawing the FPC in lamp bar
It connects；It is wrapped to bottom surface and is fixed from side using tipping paper opposite side；Setting activity through-hole, makes leaded light component on leaded light component
The activity space for having breathing avoids causing to deform because expanding with heat and contract with cold.
Description of the drawings
Fig. 1 be the utility model proposes a kind of back light module unit structure schematic diagram；
Fig. 2 is the backlight module lower frame structural schematic diagram；
Fig. 3 is the schematic diagram that light guide plate is assemblied in lower frame；
Fig. 4 is the cooperation schematic diagram of the movable through-hole and riveting column shown in A in Fig. 3；
Fig. 5 is the cooperation schematic diagram of the fixed hole and riveting column shown in B in Fig. 3；
Fig. 6 is the schematic diagram that reflector plate is assemblied in lower frame；
Fig. 7 is riveting column assembling schematic diagram；
Fig. 8 is a kind of light guide plate activity through-hole structure schematic diagram；
Fig. 9 is lower frame and center assembling schematic diagram with tipping paper；
Figure 10 is the backlight module side structure schematic diagram with tipping paper and buckle；
Figure 11 is schematic diagram at C in Figure 10；
Figure 12 is schematic diagram at D in Figure 10.
Specific implementation mode
The utility model provides a kind of backlight module, including leaded light component and lower frame, and the leaded light component is placed in described
Lower frame；The lower frame includes lower frame main body, turns up frame wall on lower frame main body setting side and nothing turns up frame wall；In the lower frame
An at least riveting column, the riveting column and the leaded light component location fit are riveted in main body.Lower frame is turned up to form placement lamp bar on one side
Frame wall, remaining side do not turn up, save space, it can be achieved that narrow frame design object；On lower frame rivet riveting column, realize with
The location fit of leaded light component ensures the correct assembly of leaded light component, ensures backlight effect.
The utility model is described in detail with reference to the accompanying drawings and examples, the examples of the embodiments are in attached drawing
In show, in which the same or similar labels are throughly indicated same or similar elements or with the same or similar functions
Element.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, and cannot understand
For limitations of the present invention.
In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the utility model.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
Calmly ", the terms such as " setting " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, can also be electrical connection；It can be directly connected, can also may be used also indirectly connected through an intermediary
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Embodiment 1
As shown in Figure 1, its display the utility model proposes a kind of backlight module, including leaded light component, lamp bar 7, lower frame 1
With center 9.The leaded light component includes optical film 8, light guide plate 5, reflector plate 6.The leaded light component is placed in the lower frame 1,
The light guide plate 5 includes incidence surface, light-emitting surface and the back side；The optical film 8 is placed in 5 light-emitting surface side of the light guide plate, described
Reflector plate 6 is placed in 5 back side of the light guide plate, and the lamp bar 7 is placed in 5 incidence surface side of the light guide plate；The center 9 and described
Lower frame 1 matches, as support construction.The lower frame 1 is metal frame, including lower frame main body 10, in the lower frame main body 10
It turns up on one side and to form side and turn up frame wall 11, the side turns up and places the lamp bar 7 on the medial surface of frame wall 11, and the medial surface refers to
The face adjacent with the lower frame main body 10.The quantity that frame wall 11 is turned up on the side is not limited to one.The lower frame main body 10
Remaining side is not turned up, and the nothing that do not turned up from 10 side of the lower frame main body can be arranged and turn up frame wall 12, for coordinating positioning.It is described
Lower frame 1 except turning up on one side for the lamp bar 7 is placed, do not turn up, and is to reduce the width of side, it is relatively narrow to reach frame by remaining side
That is the smaller purpose of overall dimensions.In the present embodiment, the lower frame includes four sides.
It is further improved, an at least riveting column is riveted on the lower frame main body 10, and the leaded light component location fit,
Realize the positioning to components such as the light guide plate 5 and the optical films 8, as shown in Figure 2.Left riveting column is set on the lower frame 1
21 and right riveting column 20, it can depend on the circumstances in the position of the lower frame 1 and quantity.The left riveting column 21 is placed in the lower frame master
On the left hand edge region of body 10, the right riveting column 20 is placed on the right hand edge region of the lower frame main body 10.Riveting column is not easy pine
Dynamic, bonding strength is larger, more reliable and more stable.Riveting is rivet interlacement, is using axial force that nail rod in part rivet hole is upset
And ailhead is formed, the method for making multiple parts be connected can be divided into activity riveting, fixed riveting and sealing riveting.Riveting is not easy
It loosens and dismantles, than stronger.Compared to punch forming and injection molding, mold is not needed.
It is further improved, through-hole is respectively provided on each component of the leaded light component, the through-hole includes fixed hole
30 and movable through-hole 31.As shown in Fig. 3, Fig. 4 and Fig. 5, the longitudinal size of the activity through-hole 31 is more than the fixed hole 30
Longitudinal size.The fixed hole 30 is identical in X transverse directions and the longitudinal fit clearances of Y as the right riveting column 20, described to match
Conjunction gap is 0.05-0.2mm.The activity through-hole 31 is larger in the longitudinal gaps Y with the left riveting column 21, that is, stays movable sky
Between, fit clearance 0.3-1.0mm makes the leaded light component when thermally expanding and contract on cooling, can be stretched in the directions Y1 and Y2
Contracting.The activity through-hole 31 and fit clearance of the left riveting column 21 in X transverse directions and the fixed hole 30 and the right riveting
The fit clearance of column 20 is identical.The effect that the movable through-hole 31 is arranged is the activity space for making the leaded light component have breathing,
Avoid the deformation for causing the leaded light component because expanding with heat and contract with cold.The fixed hole 30 and the movable through-hole 31, Yi Jisuo
Left riveting column 21 and the right riveting column 20 are stated, it is rounded.The reflector plate 6 and brightening piece（81,82）Can be used this mode be arranged it is logical
Hole（31,30）, to position and to fix.The structure that the reflector plate 6 is placed in the lower frame 1 is as shown in Figure 6.
It should be noted that the quantity of the activity through-hole 31 is not limited to one, it can be depending on actual use situation.
It is further improved, as shown in fig. 7, the height of the left riveting column 21 and the right riveting column 20 should be greater than the reflection
Piece 6, the light guide plate 5, the optical film 8（80,81,82）The sum of height, while the left riveting column 21 and the right riveting column
20 end face is in contact with the center 9, to resist the inner surface of the center 9, prevents the optical film 8 from jumping out riveting column
And shift, play fixed function.
It is further improved, as shown in figure 8, locating slot is arranged in the movable through-hole 31 on the light guide plate 5
310, the longitudinal size of the locating slot 310 is more than the outer diameter of riveting column.The locating slot 310 is interference fitted with riveting column, will be described
Light guide plate 1 blocks, and avoids its loosening.It is connected by attachment 33 between the activity through-hole 31 and the locating slot 310, it is described
Attachment 33 surrounds 310 annular array of the locating slot, and quantity is depending on service condition.It is formed between the attachment 33 pre-
Box out 32, when riveting column is interference fitted with the locating slot 310, riveting column is easily by 310 crimp of the locating slot, the preformed hole
32 can provide the space of crimp, not cause other structures crimp.
It is further improved, the bottom setting lamp bar that frame wall 11 is turned up on the side stretches out hole 14, is convenient for the lamp bar 7
In FPC draw connection.Lamp bar refers to that LED light is welded on copper wire or strip-shaped flexible wiring board with special processing technology
On, electrical source luminescent is reconnected, is gained the name because its shape is like strip.Heat conduction can be set between the lamp bar 7 and the center 9
Glue.Heat-conducting glue, also known as heat conductive silica gel are the high molecular materials such as addition filler material, Heat Conduction Material based on organic silica gel.It leads
Hot glue has stronger adhesive force to metal surface, is not easy to peel off, and can play the role of being fixedly connected, and can replace traditional card and spiral shell
Follow closely connection type.Cooling effect is played to the lamp bar 7 in use, improves performance and the service life of product.
It is further improved, as shown in Fig. 9, Figure 10, Figure 11 and Figure 12, the lower frame 1 and the center 9 are without the frame
The side of wall 11 is coated with tipping paper, from side packet to bottom surface.The center 9 is metal frame, is coated in 9 outer surface of the center
Light screening material reduces influence of the spurious rays to display effect, shading glue or foam rubber can be used.Frame wall is turned up on the side
Setting buckle 13, fastens with the center 9, the lower frame 1 is made to be fixedly connected with the center 9 on 11.13 setting of the buckle
On the lateral surface that frame wall 11 is turned up on the side, the lateral surface refers to the face opposite with the medial surface.The position of the buckle 13
It sets and quantity can be depending on service condition.Three frame walls are arranged in the center 9, abut the surface of the lower frame 1 relatively.In described
Another frame wall is arranged in frame 9, thereon setting buckle mouth, and the buckle mouth is fixed with 13 cooperation of the buckle, another frame
Wall is placed in the side and turns up 11 outside of frame wall.
It is further improved, when assembly places the lower frame 1 first, then turns up frame wall on the side of the lower frame 1
The lamp bar 7 is placed on 11.Then the reflector plate 6, the leaded light are sequentially placed from top to bottom on the lower frame main body 10
Plate 5 and the optical film 8.The center 9 is finally placed, with 1 secure fit of the lower frame.
It is further improved, the reflector plate 6 is placed in the back side of the light guide plate 5, and the light reflection that bottom surface is exposed is returned to
In the light guide plate 5, the service efficiency of light is improved.The optical film 8 is placed in the front of the light guide plate 5 comprising diffusion barrier
80, lower bright enhancement film 81 and the i.e. upper bright enhancement film of upper layer optical film 82.The diffusion barrier 80 primarily serves the effect for correcting diffusion angle,
So that light radiation area is increased, but reduces the luminous intensity of unit area to a certain extent.The lower bright enhancement film 81 and above add lustre to
Film 82 is placed in 80 side of the diffusion barrier, and the dispersed light that light source is sent out is assembled to positive direction, to improve display brightness.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (10)
1. a kind of backlight module, including leaded light component and lower frame, the leaded light component are placed in the lower frame；It is characterized in that, institute
It includes lower frame main body to state lower frame, turns up frame wall on lower frame main body setting side and nothing turns up frame wall；On the lower frame main body
Rivet an at least riveting column, the riveting column and the leaded light component location fit.
2. backlight module according to claim 1, which is characterized in that in the end face of the riveting column and the backlight module
Frame inner surface is in contact.
3. backlight module according to claim 1, which is characterized in that fixed hole and work are arranged on the leaded light component
Dynamic through-hole, the fixed hole and the movable through-hole with the riveting column location fit.
4. backlight module according to claim 3, which is characterized in that the fixed hole is with the riveting column lateral and vertical
Upward fit clearance is identical, and the longitudinal size of the activity through-hole is more than the longitudinal size of the fixed hole.
5. backlight module according to claim 1, which is characterized in that the leaded light component includes at least light guide plate.
6. backlight module according to claim 5, which is characterized in that it is fixed to be arranged in the movable through-hole on the light guide plate
Position slot, the locating slot and the riveting column location fit；It is connected by attachment between the activity through-hole and the locating slot,
Preformed hole is formed between the attachment.
7. backlight module according to claim 6, which is characterized in that the longitudinal size of the locating slot is more than the riveting column
Outer diameter.
8. backlight module according to claim 1, which is characterized in that the bottom setting lamp bar for turning up frame wall on the side is stretched
Portal.
9. backlight module according to claim 1, which is characterized in that it is turned up on the side and buckle is set on frame wall, with
Buckle mouth on the backlight module center fastens.
10. backlight module according to claim 1, which is characterized in that the center of the backlight module and the lower frame
Side and bottom surface are coated with tipping paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590500.9U CN208026906U (en) | 2018-04-24 | 2018-04-24 | A kind of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590500.9U CN208026906U (en) | 2018-04-24 | 2018-04-24 | A kind of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208026906U true CN208026906U (en) | 2018-10-30 |
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ID=63911054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820590500.9U Active CN208026906U (en) | 2018-04-24 | 2018-04-24 | A kind of backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208026906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103729A (en) * | 2019-12-13 | 2020-05-05 | 惠州市德赛西威汽车电子股份有限公司 | High radiating vehicle mounted liquid crystal display backlight structure of narrow frame |
-
2018
- 2018-04-24 CN CN201820590500.9U patent/CN208026906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103729A (en) * | 2019-12-13 | 2020-05-05 | 惠州市德赛西威汽车电子股份有限公司 | High radiating vehicle mounted liquid crystal display backlight structure of narrow frame |
| CN111103729B (en) * | 2019-12-13 | 2022-05-27 | 惠州市德赛西威汽车电子股份有限公司 | High radiating vehicle mounted liquid crystal display backlight structure of narrow frame |
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