CN216527813U - Prevent that flexible circuit board from beating on-vehicle backlight module and on-vehicle display device of damage - Google Patents
Prevent that flexible circuit board from beating on-vehicle backlight module and on-vehicle display device of damage Download PDFInfo
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- CN216527813U CN216527813U CN202123030668.5U CN202123030668U CN216527813U CN 216527813 U CN216527813 U CN 216527813U CN 202123030668 U CN202123030668 U CN 202123030668U CN 216527813 U CN216527813 U CN 216527813U
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- circuit board
- flexible circuit
- guide plate
- light guide
- frame
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Abstract
The utility model provides a vehicle-mounted backlight module for preventing a flexible circuit board from jumping and being damaged, which comprises an iron frame, a flexible circuit board, a light source and a light guide plate, wherein the iron frame comprises a bottom plate and a frame connected to the bottom plate, a containing cavity is formed between the bottom plate and the frame, the flexible circuit board is arranged in the containing cavity and fixedly connected to the frame, the light source is electrically connected to the flexible circuit board, the flexible circuit board is provided with avoidance holes, the light guide plate is arranged in the containing cavity, one side of the light guide plate, which is close to the flexible circuit board, is provided with avoidance grooves for avoiding the light source, a support structure is arranged between the light guide plate and the frame, and the support structure is arranged in the avoidance holes. The vehicle-mounted backlight module capable of preventing the flexible circuit board from jumping and being damaged can prevent the flexible circuit board from being damaged or broken, and improves the use experience of customers. The utility model also relates to a vehicle-mounted display device.
Description
Technical Field
The utility model relates to the technical field of display screens, in particular to a vehicle-mounted backlight module for preventing a flexible circuit board from jumping and being damaged and a vehicle-mounted display device.
Background
Fig. 1 is a schematic view of a local structure of a conventional vehicle-mounted backlight module, and as shown in fig. 1, the vehicle-mounted backlight module includes an iron frame 21, a light bar 22 and a light guide plate 23, the iron frame 21 is provided with an accommodating cavity, the light bar 22 is provided in the accommodating cavity, the light bar 22 is fixedly connected to an inner wall of the iron frame 21, a boss 231 of the light guide plate 23 directly abuts against the light bar 22, and when the vehicle-mounted backlight module is in use, vibration is generated, so that the boss 231 of the light guide plate 23 continuously wears the light bar 22, thereby causing circuit fracture of the light bar 22; or the extrusion force of the light guide plate 23 causes the light bar 22 to shift, so that the light emitted by the light source has poor effect, and the use experience of customers is affected.
SUMMERY OF THE UTILITY MODEL
In view of this, the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged can prevent the flexible circuit board from being damaged or broken, and improve the use experience of customers.
The utility model provides a prevent on-vehicle backlight module of flexible circuit board beat and damage, including the chase, the flexible circuit board, light source and light guide plate, the chase includes the bottom plate and connects the frame on the bottom plate, form the holding chamber between bottom plate and the frame, the flexible circuit board sets up in the holding chamber, and fixed connection is on the frame, light source electric connection is on the flexible circuit board, be equipped with on the flexible circuit board and dodge the hole, the holding intracavity is located to the light guide plate, one side that the light guide plate is close to the flexible circuit board is equipped with dodges the groove of dodging the light source, be equipped with bearing structure between light guide plate and the frame, bearing structure sets up in dodging the hole.
In the utility model, the supporting structure comprises a plurality of limiting blocks, the limiting blocks are fixedly connected to the inner wall of the frame, the limiting blocks penetrate through the avoiding holes, and the limiting blocks abut against the light incident side of the light guide plate.
In the utility model, the supporting structure comprises a plurality of abutting blocks, the abutting blocks are fixedly connected to the light incident side of the light guide plate, and the abutting blocks penetrate through the avoiding holes and abut against the inner wall of the frame.
In the utility model, the supporting structure comprises a first clamping block and a second clamping block, the first clamping block is fixedly connected to the inner wall of the frame and penetrates through the avoidance hole, the second clamping block is fixedly connected to the light incident side of the light guide plate, and the second clamping block abuts against the first clamping block.
In the utility model, a flexible pad is arranged between the frame and the light guide plate, one side of the flexible pad is abutted against the light guide plate, and the other side of the flexible pad is abutted against the inner wall of the frame.
In the utility model, the flexible pad comprises a first flexible part and a second flexible part, the first flexible part is vertically connected with the second flexible part, and the top corner of the light guide plate is arranged at the joint of the first flexible part and the second flexible part.
In the present invention, the flexible pad is made of silicone.
In the utility model, the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged further comprises a middle frame, wherein the middle frame is provided with an installation block, the frame is provided with an installation groove, and the installation block is installed in the installation groove to fixedly connect the middle frame to the iron frame.
In the utility model, the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged further comprises a reflecting film and an optical film, wherein the reflecting film is arranged on the bottom plate, the light guide plate is arranged on the reflecting film, and the optical film is arranged on the light guide plate.
The utility model also relates to a vehicle-mounted display device which comprises the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged.
According to the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged, the supporting structure is arranged between the light guide plate and the frame and penetrates through the avoidance hole in the flexible circuit board, so that the light guide plate is prevented from being directly contacted with the flexible circuit board to cause the damage and the fracture of the circuit of the flexible circuit board, the product quality is improved, the light emitting effect of the backlight module is ensured, and the use experience of a customer is improved.
Drawings
Fig. 1 is a partial structural schematic diagram of a conventional vehicle-mounted backlight module.
Fig. 2 is a schematic front view of the iron frame and the light guide plate according to the first embodiment of the present invention.
Fig. 3 is an enlarged schematic view of a structure at a in fig. 2.
Fig. 4 is a schematic cross-sectional view illustrating the light guide plate and the bezel according to the first embodiment of the present invention.
Fig. 5 is a schematic view of a disassembled structure of the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged according to the first embodiment of the present invention.
Fig. 6 is an enlarged schematic view of the structure at a in the second embodiment of the present invention.
Fig. 7 is an enlarged schematic view of the structure at a in the third embodiment of the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to facilitate understanding of those skilled in the art, the present application provides a specific implementation process of the technical solution provided by the present application through the following embodiments.
First embodiment
Fig. 2 is a schematic front view of a matching structure of an iron frame and a light guide plate according to a first embodiment of the present invention, fig. 3 is an enlarged structural schematic diagram at a position a in fig. 2, fig. 4 is a schematic split structural schematic diagram of a vehicle-mounted backlight module for preventing a flexible circuit board from jumping and being damaged according to a first embodiment of the present invention, as shown in fig. 2, fig. 3 and fig. 4, the vehicle-mounted backlight module for preventing a flexible circuit board from jumping and being damaged includes an iron frame 11, a flexible circuit board 12, a light source 13 and a light guide plate 14, the iron frame 11 includes a bottom plate (not shown) and a frame 111 connected to the bottom plate, a receiving cavity (not shown) is formed between the bottom plate and the frame 111, the flexible circuit board 12 is disposed in the receiving cavity and fixedly connected to the frame 111, the light source 13 is electrically connected to the flexible circuit board 12, a relief hole 101 is disposed on the flexible circuit board 12, the light guide plate 14 is disposed in the receiving cavity, a relief groove 102 for avoiding the light source 13 is disposed on a side of the light guide plate 14 close to the flexible circuit board 12, a supporting structure is disposed between the light guide plate 14 and the frame 111, and the supporting structure is disposed in the avoiding hole 101. In the utility model, the bottom plate and the frame 111 are integrated into a whole, the iron frame 11 is a casting, the shape of the iron frame 11 can be designed and improved by opening the mold, and the flexible circuit board 12 is fixedly connected to the inner wall of the frame 111 by the heat-conducting double-sided adhesive 196.
According to the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged, the supporting structure is arranged between the light guide plate 14 and the frame 111 and penetrates through the avoidance hole 101 in the flexible circuit board 12, so that the light guide plate 14 is prevented from being directly contacted with the flexible circuit board 12 to cause line damage and breakage of the flexible circuit board 12, the product quality is improved, the light emitting effect of the backlight module is ensured, and the use experience of a customer is improved.
Fig. 4 is a schematic cross-sectional structural view of the light guide plate and the bezel according to the first embodiment of the present invention, as shown in fig. 3 and fig. 4, the supporting structure includes a plurality of limiting blocks 151, the limiting blocks 151 are fixedly connected to the inner wall of the frame 111, the limiting blocks 151 penetrate through the avoiding holes 101, and the limiting blocks 151 abut against the light incident side of the light guide plate 14. In this embodiment, the limiting block 151 and the frame 111 are integrated, the shape of the limiting block 151 is, for example, rectangular or circular, the number of the limiting block 151 is, for example, two, the limiting block 151 is located at two ends of the light incident side, the limiting block 151 can avoid the light guide plate 14 from directly contacting the flexible circuit board 12, and the phenomenon of circuit damage or fracture caused by continuous friction of the light guide plate 14 is avoided.
When the number of the limiting blocks 151 is 4, two limiting blocks 151 are respectively arranged at two ends of the light incident side, so that the stability between the light guide plate 14 and the limiting blocks 151 can be improved.
As shown in fig. 2 and 3, a flexible pad 16 is disposed between the bezel 111 and the light guide plate 14, one side of the flexible pad 16 abuts against the light guide plate 14, and the other side of the flexible pad 16 abuts against the inner wall of the bezel 111. In this embodiment, the flexible pad 16 is fixedly connected between the inner wall of the frame 111 and the light guide plate 14 through a double-sided tape, so as to prevent the light guide plate 14 from generating a loose abnormal sound.
Further, the flexible pad 16 includes a first flexible portion (not shown) and a second flexible portion (not shown), the first flexible portion is perpendicularly connected to the second flexible portion, and the top corner of the light guide plate 14 is mounted at the connection of the first flexible portion and the second flexible portion. In this embodiment, the light guide plate 14 is rectangular, and the light guide plate 14 includes a first vertex angle (not shown) and a second vertex angle (not shown), the first vertex angle and the second vertex angle are disposed at an end far away from the light incident side, the first vertex angle and the second vertex angle are disposed adjacent to each other, and the first vertex angle and the second vertex angle are both provided with the flexible pad 16.
Further, the flexible pad 16 is made of silicone rubber. In the present embodiment, the flexible pad 16 may also be made of foam or rubber, but not limited thereto.
As shown in fig. 5, the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged further includes a middle frame 17, wherein an installation block (not shown) is disposed on the middle frame 17, an installation groove (not shown) is disposed on the frame 111, and the installation block is installed in the installation groove to fixedly connect the middle frame 17 to the iron frame 11.
Further, the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged further comprises a reflection film 18 and an optical film, wherein the reflection film 18 is arranged on the bottom plate, the light guide plate 14 is arranged on the reflection film 18, and the optical film is arranged on the light guide plate 14. In this embodiment, the reflective film 18 is fixedly connected to the bottom plate by an adhesive tape, the light guide plate 14 is fixedly connected to the reflective film 18 by an adhesive tape, the optical film comprises a diffusion film 191, a lower brightness enhancement film 192, an upper brightness enhancement film 193 and a brightness enhancement film 194, the diffusion film 191 is fixed to the light guide plate 14 by an adhesive tape double sided tape, the lower brightness enhancement film 192 is fixed to the diffusion film 191 by an adhesive tape, the upper brightness enhancement film 193 is fixed to the lower brightness enhancement film 192 by an adhesive tape, and the brightness enhancement film 194 is fixed to the upper brightness enhancement film 193 by an adhesive tape; the adhesive tape may be a double-sided adhesive tape or a single-sided adhesive tape, which can be selected according to actual requirements, but is not limited thereto.
In another preferred embodiment, the diffuser 191, the lower brightness enhancement film 192, the upper brightness enhancement film 193 and the brightness enhancement film 194 are provided with a slot, the light guide plate 14 is provided with a bump, and the bump is mounted in the slot to fix the diffuser 191, the lower brightness enhancement film 192, the upper brightness enhancement film 193, the brightness enhancement film 194 and the light guide plate 14, but not limited thereto.
Further, prevent that flexible circuit board from beating and the on-vehicle backlight module of damage still includes the bubble celloidin, and the fixed connection of bubble celloidin is on center 17, and the bubble celloidin is used for buffering fixed display screen.
Second embodiment
Fig. 6 is an enlarged schematic structural diagram of a point a in the second embodiment of the present invention, and as shown in fig. 6, the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged of the present embodiment is substantially the same in structure as the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged of the first embodiment, and the difference is that the structure of the support structure is different.
Specifically, the supporting structure includes a plurality of abutting blocks 152, the abutting blocks 152 are fixedly connected to the light incident side of the light guide plate 14, and the abutting blocks 152 penetrate through the avoiding hole 101 and abut against the inner wall of the frame 111. In this embodiment, the butt block 152 and leaded light structure as an organic whole, the one end fixed connection of butt block 152 is in the income light side of light guide plate 14, and the other end of butt block 152 is equipped with the double faced adhesive tape, and butt block 152 accessible double faced adhesive tape pastes at the inner wall of frame 111, strengthens being connected between light guide plate 14 and the frame 111, avoids the phenomenon of vibration abnormal sound to appear in light guide plate 14.
Third embodiment
Fig. 7 is an enlarged schematic structural diagram of a point a in the third embodiment of the present invention, and as shown in fig. 7, the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged of the present embodiment is substantially the same in structure as the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged of the first embodiment, and the difference is that the structure of the support structure is different.
Specifically, the supporting structure includes a first latch 153 and a second latch 154, the first latch 153 is fixedly connected to the inner wall of the frame 111 and penetrates through the avoiding hole 101, the second latch 154 is fixedly connected to the light incident side of the light guide plate 14, and the second latch 154 abuts against the first latch 153. In this embodiment, the first latch 153 and the frame 111 are integrated, the second latch 154 and the light guide plate 14 are integrated, and the first latch 153 and the second latch 154 are abutted against each other to prevent the light guide plate 14 from directly contacting the flexible circuit board 12, thereby preventing the circuit from being damaged or broken due to continuous friction of the light guide plate 14.
The utility model also relates to a vehicle-mounted display device which comprises the vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged. The on-vehicle display device of the present invention is, for example, an on-vehicle center control display, an on-vehicle drive recorder, an on-vehicle DVD navigation, an on-vehicle console integrated display screen, an on-vehicle streaming rear view mirror, a car seat headrest display, or the like, but is not limited thereto.
The present invention is not limited to the specific details of the above-described embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the utility model. The utility model is not described in detail in order to avoid unnecessary repetition.
Claims (10)
1. The utility model provides a prevent on-vehicle backlight module of flexible circuit board beat and damage, its characterized in that, includes chase (11), flexible circuit board (12), light source (13) and light guide plate (14), chase (11) include the bottom plate and connect frame (111) on the bottom plate, the bottom plate with form the holding chamber between frame (111), flexible circuit board (12) set up in the holding chamber to fixed connection is in on frame (111), light source (13) electric connection is in on flexible circuit board (12), be equipped with on flexible circuit board (12) and dodge hole (101), light guide plate (14) are located in the holding chamber, one side that light guide plate (14) are close to flexible circuit board (12) is equipped with dodges groove (102) of dodging light source (13), light guide plate (14) with be equipped with bearing structure between frame (111), the support structure is arranged in the avoiding hole (101).
2. The vehicle-mounted backlight module capable of preventing the flexible circuit board from jumping and being damaged according to claim 1, wherein the supporting structure comprises a plurality of limiting blocks (151), the limiting blocks (151) are fixedly connected to the inner wall of the frame (111), the limiting blocks (151) penetrate through the avoiding holes (101), and the limiting blocks (151) are abutted to the light incident side of the light guide plate (14).
3. The vehicle-mounted backlight module for preventing the flexible printed circuit board from jumping and being damaged according to claim 1, wherein the supporting structure comprises a plurality of abutting blocks (152), the abutting blocks (152) are fixedly connected to the light incident side of the light guide plate (14), and the abutting blocks (152) penetrate through the avoiding hole (101) and abut against the inner wall of the frame (111).
4. The vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged according to claim 1, wherein the supporting structure includes a first clamping block (153) and a second clamping block (154), the first clamping block (153) is fixedly connected to the inner wall of the frame (111) and penetrates through the avoiding hole (101), the second clamping block (154) is fixedly connected to the light incident side of the light guide plate (14), and the second clamping block (154) abuts against the first clamping block (153).
5. The vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged according to any one of claims 2 to 4, wherein a flexible pad (16) is disposed between the bezel (111) and the light guide plate (14), one side of the flexible pad (16) abuts against the light guide plate (14), and the other side of the flexible pad (16) abuts against an inner wall of the bezel (111).
6. The vehicular backlight module for preventing the bounce and damage of the flexible circuit board according to claim 5, wherein the flexible pad (16) comprises a first flexible portion and a second flexible portion, the first flexible portion is perpendicularly connected with the second flexible portion, and the top corner of the light guide plate (14) is installed at the connection position of the first flexible portion and the second flexible portion.
7. The vehicular backlight module for preventing the bounce and the damage of the flexible circuit board according to claim 6, wherein the flexible pad (16) is made of silicone.
8. The vehicle-mounted backlight module for preventing the flexible circuit board from jumping and being damaged according to claim 6, further comprising a middle frame (17), wherein the middle frame (17) is provided with a mounting block, the side frame (111) is provided with a mounting groove, and the mounting block is mounted in the mounting groove to fixedly connect the middle frame (17) to the iron frame (11).
9. The backlight module for preventing the flexible circuit board from jumping and damaging as claimed in claim 8, further comprising a reflective film (18) and an optical film, wherein the reflective film (18) is disposed on the bottom plate, the light guide plate (14) is disposed on the reflective film (18), and the optical film is disposed on the light guide plate (14).
10. An on-vehicle display device, characterized in that, include the on-vehicle backlight module of preventing the flexible circuit board of any claim 1 to 9 from jumping and damaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123030668.5U CN216527813U (en) | 2021-12-03 | 2021-12-03 | Prevent that flexible circuit board from beating on-vehicle backlight module and on-vehicle display device of damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123030668.5U CN216527813U (en) | 2021-12-03 | 2021-12-03 | Prevent that flexible circuit board from beating on-vehicle backlight module and on-vehicle display device of damage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216527813U true CN216527813U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123030668.5U Active CN216527813U (en) | 2021-12-03 | 2021-12-03 | Prevent that flexible circuit board from beating on-vehicle backlight module and on-vehicle display device of damage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216527813U (en) |
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2021
- 2021-12-03 CN CN202123030668.5U patent/CN216527813U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: On-board backlight module and on-board display device to prevent flexible circuit board from jumping and damage Effective date of registration: 20230214 Granted publication date: 20220513 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: SHENZHEN HADBEST ELECTRONICS CO.,LTD. Registration number: Y2023440020026 |