CN208026905U - A kind of backlight module - Google Patents
A kind of backlight module Download PDFInfo
- Publication number
- CN208026905U CN208026905U CN201820590499.XU CN201820590499U CN208026905U CN 208026905 U CN208026905 U CN 208026905U CN 201820590499 U CN201820590499 U CN 201820590499U CN 208026905 U CN208026905 U CN 208026905U
- Authority
- CN
- China
- Prior art keywords
- lower frame
- column
- positioning column
- main body
- light component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Planar Illumination Modules (AREA)
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 integrated injection molding at least positioning column on the lower frame main body, with the leaded light component location fit.Auxiliary location structure is set on the positioning column.A kind of auxiliary location structure is step column, and the outer diameter of the step column is less than the outer diameter of the positioning column.Extending column is set on the positioning column, and the extending column is used for and the PCB location fits that are placed in the lower frame main body back side.The positioning column of injection molding, flexible structure degree are better than riveting column and punching press column, are freely designed convenient for structure.Compared to riveting column and punching press column, structure is not single.Multi-stage stairs positioning column is set, convenient for coordinating with various sizes of leaded light component, mark action is played to rigging position and sequence, efficiency of assembling can be improved.
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, and using riveting molding location structure, riveting process is more complex, manufacturing expenses expenses of labour
Material, and labor intensity is high.After riveting molding, dismounting is inconvenient.Using punch forming positioning column, it is suitable for the larger life of batch
Production is subject to certain restrictions single-piece, small lot production.Mold used in punch process is typically complex, the manufacturing cycle
Long, cost is higher.The mold of injection molding may include dozens of even a cavities up to a hundred, therefore one-pass molding, that is, plastic dozens of is very
To a plastics up to a hundred, production efficiency is high.Generally riveting and being molded location structure, positioning knot by way of punching press in narrow frame
The structure of structure is relatively simple.
Utility model content
For problems of the prior art, the utility model solve the technical issues of be：
The utility model provides a kind of backlight module, and current lower frame location structure, structure is more single, be not easy to
Various sizes of leaded light component cooperation.One positioning column of integrated injection molding on lower frame realizes that the positioning with leaded light component is matched
It closes, ensures the correct assembly of leaded light component, ensure backlight effect.
In order to solve the above-mentioned technical problem, the solution of the utility model is：
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 integrated injection molding at least positioning column in main body, the positioning column and the leaded light component location fit；In the positioning
Auxiliary location structure is set on column.
As a kind of improvement of backlight module provided by the utility model, the auxiliary location structure is step column.
As a kind of improvement of backlight module provided by the utility model, the outer diameter of the step column is less than the positioning column
Outer diameter.
As a kind of improvement of backlight module provided by the utility model, the auxiliary location structure is in the positioning column
The groove of upper setting.
As a kind of improvement of backlight module provided by the utility model, extending column is set on the positioning column, it is described
Extending column is placed in the back side of the lower frame main body, and the extending column, which is used to position with the PCB for being placed in the lower frame main body back side, matches
It closes.
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, be arranged on the leaded light component fixed hole and
Movable through-hole, the fixed hole and the movable through-hole with the positioning column location fit.
Compared with prior art, the utility model has the beneficial effects that：
Integrated injection molding positioning column, flexible structure degree are better than riveting column and punching press column, are freely designed convenient for structure.Phase
Than riveting column and punching press column, structure is not single.Multi-stage stairs positioning column is set, it is right convenient for coordinating with various sizes of leaded light component
Rigging position and sequence play mark action, avoid loading error, improve efficiency of assembling.
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 be the utility model proposes a kind of positioning column structural schematic diagram；
Fig. 4 is a kind of auxiliary location structure schematic diagram；
Fig. 5 is another auxiliary location structure schematic diagram；
Fig. 6 is that light guide plate assembles lower frame schematic diagram；
Fig. 7 is the cooperation schematic diagram of the movable through-hole and positioning column shown in A in Fig. 6；
Fig. 8 is the cooperation schematic diagram of the fixed hole and positioning column shown in B in Fig. 6；
Fig. 9 is lower frame and center assembling structure 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 integrated injection molding at least positioning column in main body, the positioning column and the leaded light component location fit；In the positioning
Auxiliary location structure is set on column.Current lower frame location structure, structure is more single, is not easy to and various sizes of guide-lighting group
Part coordinates.One positioning column of integrated injection molding on lower frame realizes the location fit with leaded light component, ensures leaded light component
Correct assembly, ensures backlight effect.The mold of injection molding may include dozens of even a cavities up to a hundred, therefore one-pass molding can be at
Type dozens of even a plastics up to a hundred, production efficiency are high.
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.As shown in Fig. 2, the lower frame 1 is metal frame, including lower frame main body 10, under described
The turning up on one side of frame main body 10 to form side and turn up frame wall 11, and the side turns up and places the lamp bar 7, institute on the medial surface of frame wall 11
It states medial surface and 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.Under described
Remaining side of frame main body 10 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 matching
Close positioning.The lower frame 1 except turning up on one side for the lamp bar 7 is placed, do not turn up by remaining side, be in order to reduce the width of side,
Achieve the purpose that the relatively narrow i.e. overall dimensions of frame are smaller.In the present embodiment, the lower frame includes four sides.
It is further improved, as shown in figure 3, an integrated injection molding at least positioning column on the lower frame main body 10
21, with the leaded light component location fit.The positioning column 21 is placed in the front of the lower frame main body 10, the front refer to
The face of the leaded light component contact.In integrated injection molding, the positioning column 21, which nearby has, draws glue mouth 23.In the lower frame
1 is arranged the left positioning column 21 and the right positioning column 20, can be depending on feelings in the position of the lower frame 1.The left positioning
Column 21 is disposed adjacent on the left hand edge region for the lower frame main body 10 that frame wall 11 is turned up on the side, and the right positioning column 20 is placed in
On the right hand edge region for the lower frame main body 10 for turning up frame wall 11 close to the side.It should be noted that the quantity of positioning column
It is not limited to two.In order to increase locating effect, auxiliary location structure is set on the positioning column 21.A kind of auxiliary location structure
For step column 22, as shown in figure 4, the step column 22 is placed on the positioning column 21, the outer diameter of the step column 22 is less than institute
State the outer diameter of positioning column 21.Such design uses for different leaded light components.For example, using the larger positioning of outer diameter
Column 21 coordinates with the light guide plate 5, to position fixation.Diaphragm is lighter, and the smaller step column 22 of outer diameter may be used
Coordinate with it.The reflector plate 6 is inserted in the positioning column 21.Another auxiliary location structure is to be arranged on the positioning column 21
Groove 24, as shown in Figure 5.For the leaded light component with after 21 location fit of the positioning column, the groove 24 can be used as one
Positioning assembly buffering area, provides the space of assembly and dismounting.The location structure of various outer diameter can be used in different diaphragms, on the one hand
Positioning action is played to the leaded light component, mark action on the other hand is played to rigging position and sequence, avoids loading error,
Improve efficiency of assembling.
It is further improved, extending column 25 is set on the positioning column 21, the extending column 25 is placed in the lower frame master
The back side of body 10, the extending column 25 are used for and the PCB location fits that are placed in 10 back side of the lower frame main body.
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, to position and to fix.As shown in Fig. 6, Fig. 7 and Fig. 8, the longitudinal size of the activity through-hole 31 is more than
The longitudinal size of the fixed hole 30.The fixed hole 30 is with the right positioning column 20 in X transverse directions and the longitudinal cooperations of Y
Gap is identical, and the fit clearance is 0.05-0.2mm.The activity through-hole 31 and the left positioning column 21 are between Y is longitudinal
Gap is larger, that is, stays activity space, fit clearance 0.3-1.0mm so that the light guide plate 5 and the optical film 8 are thermally expanding
When with contract on cooling, it can stretch in the directions Y1 and Y2.The activity through-hole 31 and 21 matching in X transverse directions of the left positioning column
It is identical as the fit clearance of the fixed hole 30 and the right positioning column 20 to close gap.The effect of the movable through-hole 31 is set
It is the activity space for making the leaded light component have breathing, avoids the deformation for causing the leaded light component because expanding with heat and contract with cold.It is described
Fixed hole 30 and the movable through-hole 31 and the left positioning column 21 and the right positioning column 20, are square.It is described anti-
Penetrate piece 6 and brightening piece（81,82）This mode can be used, through-hole is set（31,30）, to position and to fix.
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, the height of the left positioning column 21 and the right positioning column 20 should be greater than the reflector plate 6, institute
State light guide plate 5, the optical film 8（80,81,82）The sum of height, while the left positioning column 21 and the right positioning column 20
End face be in contact with the center 9, to resist the inner surface of the center 9, prevent the optical film 8 from jumping out positioning column
And shift, play fixed function.
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, it is highly preferred that in the center 9
Outer surface coats light screening material, reduces influence of the spurious rays to display effect, shading glue or foam rubber can be used.Described
While the buckle mouth turned up on frame wall 11 on setting buckle 13, with the center 9 fastens, the lower frame 1 and the center 9 is made to fix
Connection.The buckle 13 is arranged on the lateral surface that frame wall 11 is turned up on the side, and the lateral surface refers to opposite with the medial surface
Face.The position of the buckle 13 and quantity can be depending on service conditions.Three frame walls are arranged in the center 9, abut opposite institute
State the surface of lower frame 1.Another frame wall is arranged in the center 9, thereon setting buckle mouth, and the buckle mouth is matched with the buckle 13
It closes and fixes, another frame wall is placed in the side and turns up 11 outside of frame wall.
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.
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.
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 (7)
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
An integrated injection molding at least positioning column, the positioning column and the leaded light component location fit；It is set on the positioning column
Set auxiliary location structure.
2. backlight module according to claim 1, which is characterized in that the auxiliary location structure is step column.
3. backlight module according to claim 2, which is characterized in that the outer diameter of the step column is less than the positioning column
Outer diameter.
4. backlight module according to claim 1, which is characterized in that the auxiliary location structure is on the positioning column
The groove of setting.
5. backlight module according to claim 1, which is characterized in that extending column is set on the positioning column, it is described to prolong
Stretch the back side that column is placed in the lower frame main body, the extending column is used for and the PCB location fits that are placed in the lower frame main body back side.
6. backlight module according to claim 1, which is characterized in that the leaded light component includes at least light guide plate.
7. backlight module according to claim 6, 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 positioning column location fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590499.XU CN208026905U (en) | 2018-04-24 | 2018-04-24 | A kind of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590499.XU CN208026905U (en) | 2018-04-24 | 2018-04-24 | A kind of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208026905U true CN208026905U (en) | 2018-10-30 |
Family
ID=63911115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820590499.XU Active CN208026905U (en) | 2018-04-24 | 2018-04-24 | A kind of backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208026905U (en) |
-
2018
- 2018-04-24 CN CN201820590499.XU patent/CN208026905U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104089217A (en) | Backlight source, backlight module and display device | |
| US8827490B2 (en) | Lighting apparatus | |
| CN106895339B (en) | Square light guide mounting structure | |
| CN102798044A (en) | Edge-lighting backlight module | |
| CN101749600B (en) | Backlight module with platy optical element locating effect and display device and display device | |
| CN206247200U (en) | automobile LED headlight | |
| CN208026905U (en) | A kind of backlight module | |
| CN208026906U (en) | A kind of backlight module | |
| US20160138763A1 (en) | Led lamp | |
| CN208154216U (en) | A kind of backlight module | |
| CN220082942U (en) | LED lamp capable of emitting light from two sides and LED lamp strip | |
| CN208011450U (en) | A kind of panel light | |
| CN101761788A (en) | Luminous module | |
| CN208172287U (en) | A kind of backlight module | |
| CN207334432U (en) | Panel light and light source fixing structure | |
| CN203036343U (en) | Light emitting diode (LED) fluorescent tube | |
| CN208172286U (en) | A kind of light guide plate and backlight module | |
| CN208237646U (en) | A kind of positive light emitting plane lamp of Rimless integral type | |
| CN204494122U (en) | Led lamp tube | |
| CN201858551U (en) | LED (light-emitting diode) panel light | |
| CN202660276U (en) | Planar lighting device | |
| CN207651121U (en) | A kind of LED mirror images lamp box | |
| CN206234672U (en) | A kind of glue spraying S type lamp bars | |
| CN201081208Y (en) | Display and its optical source unit | |
| CN102865510B (en) | Backlight unit and liquid-crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |