Shrink-resistant rubber frame, rubber iron, vehicle-mounted backlight source and vehicle-mounted display device
By setting a middle frame plate, an inner expansion plate, and an outer frame plate on the automotive backlight frame, and setting a shrinkage groove on the frame, the problem of poor shrinkage caused by excessive local thickness was solved, the structural stability and cooling efficiency were improved, and the problem of poor display was solved.
Patent Information
- Application Number
- CN202423321780.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing automotive backlight frame has excessive thickness in some areas, leading to poor shrinkage and resulting in display problems such as light leakage.
A shrinkage-resistant frame is designed by setting a middle frame plate, an inner expansion plate, and an outer frame plate on the frame body, all with a thickness smaller than the frame body. Shrinkage grooves are set on the frame at even intervals to disperse stress and accelerate cooling, thereby reducing the material thickness.
It effectively reduces the risk of shrinkage and deformation of the frame, improves structural strength and cooling efficiency, avoids volume shrinkage caused by cooling differences, and reduces material usage and cooling time.
Smart Images
Figure CN223756999U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of vehicle-mounted backlights, in particular to a shrinkage-preventing glue frame, glue iron, vehicle-mounted backlight and vehicle-mounted display device. BACKGROUND
[0002] As an important supporting structure of the functional film of the backlight, the glue iron is usually used to support and protect various functional films; the glue iron usually comprises a glue frame and an iron frame, and the glue frame is usually arranged at the top of the side plate of the iron frame; for some glue iron applied to the backlight of the vehicle-mounted display device, the glue frame thereof usually has a wide and thick injection molding area, which leads to the surface shrinkage defect of the glue frame, and further leads to the display defect of the backlight such as light leakage.
[0003] Therefore, the prior art has defects and deficiencies, and needs to be further improved and developed. CONTENT OF THE UTILITY MODEL
[0004] In view of the deficiencies of the prior art, the present application aims to provide a shrinkage-preventing glue frame, glue iron, vehicle-mounted backlight and vehicle-mounted display device, and aims to solve the problem of shrinkage defect of the glue frame of the glue iron of the vehicle-mounted backlight due to local excessive thickness in the prior art.
[0005] The technical solution adopted by the present application to solve the technical problem is as follows: a shrinkage-preventing glue frame comprises:
[0006] a glue frame body, the glue frame body has a glue frame inner surface, a glue frame top surface, a glue frame outer surface and a glue frame bottom surface connected in sequence, the glue frame inner surface and the glue frame outer surface are oppositely arranged, and the glue frame top surface and the glue frame bottom surface are oppositely arranged;
[0007] a middle frame plate, the middle frame plate is integrally and vertically formed on the glue frame outer surface, and the middle frame plate has a surface flush with the glue frame top surface;
[0008] an inner expansion plate, the inner expansion plate is integrally and vertically formed on the glue frame inner surface, and the inner expansion plate has a surface flush with the glue frame bottom surface;
[0009] an outer frame plate, the outer frame plate is integrally and vertically formed on the glue frame bottom surface, and the outer frame plate has a surface flush with the glue frame outer surface;
[0010] wherein the thicknesses of the middle frame plate, the inner expansion plate and the outer frame plate are all less than the thickness of the glue frame body, and the glue frame body is provided with a plurality of shrinkage grooves arranged uniformly and at intervals.
[0011] Optionally, the plurality of water-reducing grooves include a plurality of first water-reducing grooves, each of the plurality of first water-reducing grooves is arranged on the bottom surface of the rubber frame and is located between the inner expansion plate and the outer frame plate.
[0012] Optionally, the rubber frame body has a first thickness from the top surface of the rubber frame to the bottom surface of the rubber frame, and the groove depth of the plurality of first water-reducing grooves is set to 30%-50% of the first thickness.
[0013] Optionally, the plurality of water-reducing grooves further include a plurality of second water-reducing grooves, each of the plurality of second water-reducing grooves is arranged on the outer surface of the rubber frame and is located between the middle frame plate and the outer frame plate; the plurality of first water-reducing grooves and the plurality of second water-reducing grooves are alternately arranged in uniform intervals.
[0014] Optionally, the rubber frame body has a second thickness from the top surface of the rubber frame to the bottom surface of the rubber frame, and the groove depth of the plurality of first water-reducing grooves is set to 50%-70% of the second thickness.
[0015] The rubber frame body has a third thickness from the inner surface of the rubber frame to the outer surface of the rubber frame, and the groove depth of the plurality of second water-reducing grooves is set to 50%-70% of the third thickness.
[0016] Optionally, the plurality of water-reducing grooves further include a plurality of second water-reducing grooves, each of the plurality of second water-reducing grooves is arranged on the outer surface of the rubber frame and is located between the middle frame plate and the outer frame plate and is located between the inner expansion plate and the outer frame plate; the rubber frame body has a fourth thickness from the top surface of the rubber frame to the bottom surface of the rubber frame, and the groove depth of the plurality of water-reducing grooves is set to 30%-50% of the fourth thickness.
[0017] Another technical solution adopted by the present application to solve the technical problem is as follows: a rubber iron, which comprises the water-reducing rubber frame as described above.
[0018] Optionally, the rubber iron further comprises an iron frame, the iron frame comprises a bottom plate and a side iron plate, the side iron plate is arranged at the outer peripheral edge of the bottom plate, the side iron plate has an outer side peripheral surface and a top surface facing away from the bottom plate, a plurality of side clamping blocks are arranged on the outer side peripheral surface, and a plurality of top clamping blocks are arranged on the top surface.
[0019] The outer frame plate is provided with a plurality of outer peripheral clamping grooves, the plurality of side clamping blocks and the plurality of outer peripheral clamping grooves correspond one by one to be clamped, for limiting the iron frame and the rubber frame in the up-down direction; the plurality of top clamping blocks and the plurality of first water-reducing grooves correspond one by one to be clamped, for limiting the iron frame and the rubber frame in the inner-outer direction.
[0020] Another technical solution adopted by the present application to solve the technical problem is as follows: a vehicle-mounted backlight, which comprises the rubber iron as described above.
[0021] The application solves the technical problem by adopting another technical solution as follows: a vehicle-mounted display device comprising the vehicle-mounted backlight source as described above.
[0022] Beneficial effects:
[0023] In the application, a shrinkage-preventing rubber frame, a rubber iron, a vehicle-mounted backlight source and a vehicle-mounted display device are provided. The thickness of the middle frame plate, the inner expansion plate and the outer frame plate of the shrinkage-preventing rubber frame is less than the thickness of the rubber frame body, and a plurality of shrinkage grooves are evenly arranged on the rubber frame body. Thus, the structural strength of the rubber frame can be ensured, the stress after the rubber frame is injection molded can be dispersed and released through the shrinkage grooves, the material thickness of the rubber frame body part can be reduced, the cooling can be more uniform, the overall cooling time can be shortened, the volume shrinkage caused by the difference in cooling can be reduced, the material volume of the rubber frame body part can be reduced, the volume shrinkage can be avoided, the shrinkage amount can be reduced from the root cause, and the risk of shrinkage deformation can be reduced. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is a front view schematic diagram of the shrinkage-preventing rubber frame provided in the application;
[0025] Figure 2 is a sectional view schematic diagram of the shrinkage-preventing rubber frame provided in the application;
[0026] Figure 3 is an enlarged schematic diagram of A in the shrinkage-preventing rubber frame provided in the application; Figure 2
[0027] Figure 4 is a preferred variant structure schematic diagram of the shrinkage-preventing rubber frame provided in the application; Figure 3
[0028] Figure 5 is another preferred variant structure schematic diagram of the shrinkage-preventing rubber frame provided in the application; Figure 3
[0029] Figure 6 is a sectional view partial schematic diagram of the rubber iron provided in the application.
[0030] BRIEF DESCRIPTION OF DRAWINGS:
[0031] 1, rubber iron; 10, shrinkage-preventing rubber frame; 20, iron frame; 11, rubber frame body; 12, middle frame plate; 13, inner expansion plate; 14, outer frame plate; 15, shrinkage groove; 111, rubber frame inner surface; 112, rubber frame top surface; 113, rubber frame outer surface; 114, rubber frame bottom surface; 151, first shrinkage groove; 152, second shrinkage groove; 141, outer peripheral clamping groove; 21, bottom plate; 22, side iron plate; 23, outer lateral surface; 24, top surface; 25, side clamping block; 26, top clamping block. DETAILED DESCRIPTION
[0032] For the purpose of the present application, the technical solutions and advantages are more clear and explicit, the following will be further described in detail with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.
[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features with "first", "second" can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0034] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0035] Please refer to Figures 1 to 3In the first embodiment of the present application, a shrinkage prevention glue frame 10 is provided to avoid the shrinkage defect caused by the local large thickness after injection molding is completed. The shrinkage prevention glue frame 10 comprises a glue frame body 11, a middle frame plate 12, an inner expansion plate 13 and an outer frame plate 14. The glue frame body 11 has a glue frame inner surface 111, a glue frame top surface 112, a glue frame outer surface 113 and a glue frame bottom surface 114 connected in sequence. The glue frame inner surface 111 and the glue frame outer surface 113 are oppositely arranged, and the glue frame top surface 112 and the glue frame bottom surface 114 are oppositely arranged. The middle frame plate 12 is integrally formed on the glue frame outer surface 113, and the middle frame plate 12 is vertically arranged with the glue frame outer surface 113. Meanwhile, the middle frame plate 12 has a surface flush with the glue frame top surface 112. The inner expansion plate 13 is integrally formed on the glue frame inner surface 111, and the inner expansion plate 13 is vertically arranged with the glue frame inner surface 111. Meanwhile, the inner expansion plate 13 has a surface flush with the glue frame bottom surface 114. The outer frame plate 14 is integrally formed on the glue frame bottom surface 114, and the outer frame plate 14 is vertically arranged with the glue frame bottom surface 114. Meanwhile, the outer frame plate 14 has a surface flush with the glue frame outer surface 113.
[0036] The thicknesses of the middle frame plate 12, the inner expansion plate 13 and the outer frame plate 14 are all less than the thickness of the glue frame body 11. A plurality of shrinkage grooves 15 are evenly arranged on the glue frame body 11. In this way, the structural strength of the glue frame can be ensured, the stress after injection molding of the glue frame can be dispersed and released through the shrinkage grooves 15, the material thickness of the glue frame body 11 can be reduced, the cooling can be more uniform, the overall cooling time can be shortened, the volume shrinkage caused by the cooling difference can be reduced, the material volume of the glue frame body 11 can be reduced, the volume shrinkage caused by the large volume can be avoided, the shrinkage amount can be reduced from the root cause, and the risk of shrinkage deformation can be reduced.
[0037] In some preferable embodiments, the plurality of shrinkage grooves 15 comprise a plurality of first shrinkage grooves 151. The plurality of first shrinkage grooves 151 are arranged on the glue frame bottom surface 114 and located between the inner expansion plate 13 and the outer frame plate 14. By arranging the first shrinkage grooves 151 on the glue frame bottom surface 114, the area of heat dissipation of the glue frame bottom surface 114, which is the most concentrated area of heat dissipation, can be reduced, the heat dissipation area can be increased, the heat dissipation path can be reduced, the risk of volume shrinkage caused by uneven cooling can be avoided, the material volume of the bottom can be effectively reduced without damaging the appearance integrity, the cooling time can be reduced, the overall cooling efficiency can be improved, and the probability of shrinkage deformation can be reduced.
[0038] In some preferred embodiments, the frame body 11 has a first thickness from the top surface 112 to the bottom surface 114 of the frame, and the first thinning grooves 151 have a groove depth of 30-50% of the first thickness. In this way, the overall cooling rate is balanced while ensuring that the frame has sufficient structural strength, and local slow cooling is prevented to avoid poor thinning.
[0039] For further reference, please see Figure 4 In some preferred embodiments, the thinning grooves 15 further include second thinning grooves 152, which are arranged on the outer surface 113 of the frame and located between the middle frame plate 12 and the outer frame plate 14. The first thinning grooves 151 and the second thinning grooves 152 are alternately and uniformly spaced. By alternately arranging the thinning grooves 15 on the bottom surface 114 and the outer surface 113 of the frame, the structural stability and stress balance are considered while ensuring the thinning effect. On the one hand, the first thinning grooves 151 in the area of the bottom surface 114 of the frame still achieve heat dissipation and stress dispersion for the core thick-walled part, reducing the deformation of the bottom surface 114 of the frame due to slow cooling. On the other hand, the second thinning grooves 152 arranged in the middle area of the outer surface 113 and the corresponding adjacent first thinning grooves 151 can more directly reduce the material volume at the outer edge or side wall and speed up the heat dissipation of the outer surface. At the same time, the risk of deformation and shrinkage defects is reduced, and the material usage and cooling time are further reduced.
[0040] Further, the frame body 11 has a second thickness from the top surface 112 to the bottom surface 114 of the frame, and the first thinning grooves 151 have a groove depth of 50-70% of the second thickness. The frame body 11 has a third thickness from the inner surface 111 to the outer surface 113 of the frame, and the second thinning grooves 152 have a groove depth of 50-70% of the third thickness. As can be seen, the rigidity and shrinkage prevention requirements of the frame are balanced by uniformly dispersing the volume reduction points in the inner and outer layers. After ensuring the structural strength of the frame, the depth of the first thinning grooves 151 and the second thinning grooves 152 can be deeper than the depth of the thinning grooves 15 arranged on one side. In this way, the internal heat dissipation efficiency is further increased, the same efficiency cooling of the frame body 11, the middle frame plate 12, the inner extension plate 13, and the outer frame plate 14 is promoted, and shrinkage defects are further avoided.
[0041] For further reference, please see Figure 5In some preferable embodiments, the plurality of water-reducing grooves 15 further comprise a plurality of second water-reducing grooves 152, each of which is arranged on the outer surface 113 of the frame body 11, between the middle frame plate 12 and the outer frame plate 14, and between the inner expanding plate 13 and the outer frame plate 14. The frame body 11 has a fourth thickness from the top surface 112 to the bottom surface 114. The depth of the plurality of water-reducing grooves 15 is set to be 30%-50% of the fourth thickness. By arranging the second water-reducing grooves 152 on the outer surface 113 of the frame body 11, the thickness of the outer edge or the side wall can be directly reduced, so as to accelerate the heat exchange between the inside of the frame body 11 and the outside, reduce the material volume of the frame body 11, and facilitate observation and processing in the mold or subsequent processing.
[0042] Please refer to Figure 3 and Figure 6 In the second embodiment of the present application, a frame 1 is further provided, which comprises the water-reducing frame 10 provided in the first embodiment of the present application, so as to effectively avoid the occurrence of water-reducing defects, which leads to unqualified frame 1 structure. Please refer to the first embodiment of the present application.
[0043] In some preferable embodiments, the frame 1 further comprises a frame 20, which comprises a bottom plate 21 and a side iron plate 22 arranged at the outer peripheral edge of the bottom plate 21. The side iron plate 22 has an outer side surface 23 and a top surface 24 facing away from the bottom plate 21. A plurality of side clamping blocks 25 are arranged on the outer side surface 23, and a plurality of top clamping blocks 26 are arranged on the top surface 24. The outer frame plate 14 is provided with a plurality of outer peripheral clamping grooves 141. The plurality of side clamping blocks 25 and the plurality of outer peripheral clamping grooves 141 correspond to each other in clamping, for limiting the frame 20 and the frame in the up-down direction (the vertical direction of the top surface 112 and the bottom surface 114 of the frame). The plurality of top clamping blocks 26 and the plurality of first water-reducing grooves 151 correspond to each other in clamping, for limiting the frame 20 and the frame in the inside-outside direction (the vertical direction of the inner surface 111 and the outer surface 113 of the frame), so as to prevent the frame and the frame 20 from being separated and deformed in the four directions of inside-outside and up-down.
[0044] In the third embodiment of the present application, a vehicle-mounted backlight is further provided, which comprises the frame provided in the second embodiment of the present application, so as to effectively avoid the problem of light leakage or display defects of the vehicle-mounted backlight due to the water-reducing frame of the frame. Please refer to the second embodiment of the present application.
[0045] In the fourth embodiment of the present application, a vehicle-mounted display device is further provided, which comprises the vehicle-mounted backlight provided in the third embodiment of the present application, so as to effectively avoid the problem of light leakage or display defects of the vehicle-mounted display device.
[0046] To sum up, the application provides a waterproof glue frame, glue iron, vehicle-mounted backlight and vehicle-mounted display device. The waterproof glue frame comprises a glue frame body, the glue frame body has a glue frame inner surface, a glue frame top surface, a glue frame outer surface and a glue frame bottom surface connected in sequence, the glue frame inner surface and the glue frame outer surface are oppositely arranged, and the glue frame top surface and the glue frame bottom surface are oppositely arranged; a middle frame plate is integrally and vertically formed on the glue frame outer surface, and the middle frame plate has a surface flush with the glue frame top surface; an inner expansion plate is integrally and vertically formed on the glue frame inner surface, and the inner expansion plate has a surface flush with the glue frame bottom surface; and an outer frame plate is integrally and vertically formed on the glue frame bottom surface, and the outer frame plate has a surface flush with the glue frame outer surface. The thicknesses of the middle frame plate, the inner expansion plate and the outer frame plate are all less than the thickness of the glue frame body, and the glue frame body is provided with a plurality of shrinkage grooves evenly and spacedly arranged. The waterproof glue frame controls the thicknesses of the middle frame plate, the inner expansion plate and the outer frame plate to be less than the thickness of the glue frame body, and the glue frame body is provided with a plurality of shrinkage grooves evenly and spacedly arranged, so as to ensure the structural strength of the glue frame, disperse and release the stress of the glue frame after injection molding, reduce the material thickness of the glue frame body part, make the cooling more uniform, shorten the overall cooling time, reduce the volume shrinkage caused by the cooling difference, reduce the material volume of the glue frame body part, avoid the larger volume from shrinking more, reduce the shrinkage amount from the root, and reduce the risk of shrinkage deformation.
[0047] It should be understood that the application of the application is not limited to the above examples, and those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims attached to the application.
Claims
1. A shrink resistant gasket characterized by, include: The frame body has an inner surface, a top surface, an outer surface, and a bottom surface connected in sequence. The inner surface and the outer surface are arranged opposite to each other, and the top surface and the bottom surface are arranged opposite to each other. A middle frame plate, which is integrally and vertically formed on the outer surface of the plastic frame, and the middle frame plate has a surface flush with the top surface of the plastic frame; An inner expansion plate is integrally and vertically formed on the inner surface of the frame, and the inner expansion plate has a surface flush with the bottom surface of the frame. The outer frame plate is integrally and vertically formed on the bottom surface of the plastic frame, and the outer frame plate has a surface flush with the outer surface of the plastic frame; The thickness of the middle frame plate, the inner expansion plate, and the outer frame plate is all less than the thickness of the frame body, and the frame body is provided with a plurality of evenly spaced shrinkage grooves.
2. The shrinkable frame of claim 1, wherein, The plurality of shrinkage grooves include a plurality of first shrinkage grooves, all of which are disposed on the bottom surface of the rubber frame and are located between the inner expansion plate and the outer frame plate.
3. The shrinkable frame of claim 2, wherein, The frame body has a first thickness from the top surface of the frame to the bottom surface of the frame, and the groove depth of the plurality of first shrinkage grooves is set to 30%-50% of the first thickness.
4. The shrinkable frame of claim 2, wherein, The plurality of shrinkage grooves also include a plurality of second shrinkage grooves, all of which are disposed on the outer surface of the rubber frame and are located between the middle frame plate and the outer frame plate; the plurality of first shrinkage grooves and the plurality of second shrinkage grooves are evenly spaced and alternately arranged.
5. The anti-shrinkage frame according to claim 4, characterized in that, The frame body has a second thickness from the top surface of the frame to the bottom surface of the frame, and the groove depth of the plurality of first shrinkage grooves is set to 50%-70% of the second thickness; The frame body has a third thickness from the inner surface of the frame to the outer surface of the frame, and the groove depth of the plurality of second shrinkage grooves is set to 50%-70% of the third thickness.
6. The shrinkable frame of claim 1, wherein, The plurality of shrinkage grooves further include a plurality of second shrinkage grooves, all of which are disposed on the outer surface of the frame and are located between the middle frame plate and the outer frame plate and between the inner expansion plate and the outer frame plate; the frame body has a fourth thickness from the top surface of the frame to the bottom surface of the frame, and the groove depth of the plurality of shrinkage grooves is set to 30%-50% of the fourth thickness.
7. A glue iron, characterized by Including the anti-shrinkage frame as described in any one of claims 2-5.
8. The glue iron of claim 7, wherein, The glued iron also includes an iron frame, which includes a base plate and side iron plates. The side iron plates are disposed at the outer peripheral edge of the base plate. The side iron plates have an outer peripheral surface and a top surface facing away from the base plate. A plurality of side locking blocks are disposed on the outer peripheral surface, and a plurality of top locking blocks are disposed on the top surface. The outer frame plate is provided with a plurality of peripheral slots, and a plurality of side blocks are engaged with the plurality of peripheral slots in a one-to-one manner to limit the iron frame and the plastic frame in the vertical direction; a plurality of top blocks are engaged with a plurality of the first shrinkage grooves in a one-to-one manner to limit the iron frame and the plastic frame in the inward and outward directions.
9. A vehicle-mounted backlight, characterized by comprising: Includes the glued iron as described in any one of claims 7-8.
10. A display device for a vehicle, characterized by comprising: A vehicle-mounted backlight including the light source as claimed in claim 9.