Vehicle-mounted backlight module and vehicle-mounted display device capable of preventing appearance paint of die casting from falling off

Abstract

The vehicle-mounted backlight module capable of preventing the appearance of the die casting from paint peeling comprises a lower frame and a middle frame, the lower frame comprises a bottom plate, a side frame and a connecting piece, the bottom plate and the side frame are fixedly connected to form a containing cavity, the connecting piece is arranged in the containing cavity, and the middle frame is arranged in the containing cavity. The connecting piece comprises a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate and the second connecting plate are fixedly connected to the two ends of the bottom plate respectively, and the third connecting plate is arranged between the first connecting plate and the second connecting plate. The middle frame is connected with the lower frame through the first connecting plate, the second connecting plate and the third connecting plate. According to the vehicle-mounted backlight module capable of preventing the appearance paint of the die casting from falling off, the phenomenon that outer paint falls off when the lower frame is assembled in the prior art can be solved, and the product quality is improved. The utility model further relates to a vehicle-mounted display device.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen technical field especially is involved in a kind of vehicle-mounted backlight module and vehicle-mounted display device for avoiding die casting appearance paint drop. BACKGROUND

[0002] In recent years, with the continuous improvement of people's driving safety consciousness, vehicle-mounted display screen is rapidly developed in the field of automobile electronics, which can provide real-time monitoring display for the environment outside the vehicle cabin for the driver and passenger, provide protection for safe driving, become one of the indispensable equipment for traffic safety, and the quality requirements of automobile manufacturers for vehicle-mounted display screen are also higher and higher, and higher requirements are put forward for the appearance quality and yield of vehicle-mounted display screen.

[0003] The die casting of the traditional vehicle-mounted backlight source includes a bottom plate and a side frame, the bottom plate is fixedly connected with the side frame to form a containing cavity, an optical film assembly is arranged in the containing cavity, and the middle frame is connected with the side frame of the die casting through clamping blocks. However, during the clamping process, the die casting appearance spraying surface is prone to paint drop or scratch, which affects the production yield and increases the cost. SUMMARY

[0004] Therefore, the purpose of the utility model is to provide a vehicle-mounted backlight module capable of avoiding die casting appearance paint drop, which can solve the problem of paint drop of the lower frame during assembly in the prior art and improve the quality of the product.

[0005] The utility model provides a vehicle-mounted backlight module capable of avoiding die casting appearance paint drop, which comprises a lower frame and a middle frame, the lower frame comprises a bottom plate, a side frame and a connecting piece, the bottom plate is fixedly connected with the side frame to form a containing cavity, the connecting piece is arranged in the containing cavity, the connecting piece comprises a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate and the second connecting plate are fixedly connected at both ends of the bottom plate respectively, the third connecting plate is arranged between the first connecting plate and the second connecting plate, and the middle frame is connected with the lower frame through the first connecting plate, the second connecting plate and the third connecting plate.

[0006] In an embodiment, the middle frame comprises a main body portion, a first fixing portion, a second fixing portion and a supporting portion, the first fixing portion, the second fixing portion and the supporting portion are fixedly connected to the main body portion respectively, the first fixing portion is connected with the first connecting plate, the second fixing portion is connected with the second connecting plate, and the supporting portion is connected with the third connecting plate.

[0007] In an embodiment, the first connecting plate is arranged along the width direction of the bottom plate, and the second connecting plate is arranged along the width direction of the bottom plate.

[0008] In an embodiment, the side frame comprises oppositely arranged first side plates, second side plates and oppositely arranged third side plates and fourth side plates, the first side plates and the second side plates are fixedly connected between the third side plates and the fourth side plates, two ends of the first connecting plate are respectively connected with the first side plates and the second side plates, two ends of the second connecting plate are respectively connected with the first side plates and the second side plates, or one end of the first connecting plate is connected with the first side plate, the other end of the first connecting plate is spaced apart from the second side plate, one end of the second connecting plate is connected with the first side plate, and the other end of the first connecting plate is spaced apart from the second side plate, or two ends of the first connecting plate are respectively spaced apart from the first side plates and the second side plates, and two ends of the second connecting plate are respectively spaced apart from the first side plates and the second side plates.

[0009] In an embodiment, the lower frame further comprises a spacing beam, the spacing beam is fixedly connected to the bottom plate, the spacing beam is arranged along the width direction of the bottom plate, the spacing beam is arranged between the third side plate and the fourth side plate, and the third connecting plate is fixedly connected to the spacing beam.

[0010] In an embodiment, the third connecting plate comprises a first connecting segment and a second connecting plate, the first connecting segment and the second connecting segment are spaced apart, the first connecting segment is fixedly connected to the first side plate, and the second connecting segment is fixedly connected to the second side plate, or the third connecting plate comprises a first connecting segment and a second connecting segment, the first connecting segment and the second connecting segment are spaced apart, the first connecting segment is spaced apart from the first side plate, and the second connecting segment is spaced apart from the second side plate, or the third connecting plate is an integral structure, the third connecting plate is spaced apart from the first side plate and the second side plate, or the third connecting plate is an integral structure, and two ends of the third connecting plate are respectively connected to the first side plate and the second side plate.

[0011] In an embodiment, the length of the bottom plate is greater than 1 meter.

[0012] In an embodiment, the vehicle-mounted backlight module for avoiding paint peeling of the appearance of the die casting further comprises a reflective film, a light guide plate and an optical film, the reflective film is arranged in the accommodating cavity, the light guide plate is arranged on the reflective film, and the optical film is arranged on the light guide plate.

[0013] In an embodiment, the vehicle-mounted backlight module for avoiding paint peeling of the appearance of the die casting further comprises a lamp strip, and the lamp strip is fixedly connected to the inner wall of the side frame.

[0014] The utility model also relates to a vehicle-mounted display device comprising the vehicle-mounted backlight module for avoiding paint peeling of the appearance of the die casting.

[0015] The vehicle-mounted backlight module fixes the connecting piece in the accommodating cavity, connects the middle frame with the lower frame through the connecting piece, and has the structural design of the connecting piece which can increase the structural strength of the vehicle-mounted backlight module, can bear greater external force and vibration, will not affect the appearance spraying surface of the lower frame, improves the appearance yield of the lower frame, avoids the phenomenon of scratching or damaging the appearance of the lower frame when the middle frame is connected with the lower frame, improves the product quality and production efficiency, and reduces the product cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can be obtained without creative labor on the premise of the drawings.

[0017] Figure 1 is the split structure schematic view of the vehicle-mounted backlight module of the present application.

[0018] Figure 2 is Figure 1 the enlarged structure schematic view of A in the middle.

[0019] Explanation of reference numerals: accommodating cavity-101, lower frame-11, bottom plate-111, first side plate-112, second side plate-113, third side plate-114, fourth side plate-115, first connecting plate-116, second connecting plate-117, third connecting plate-118, first connecting section-1181, second connecting section-1182, spacing beam-119, middle frame-12, main body-121, first fixing part-122, second fixing part-123, support part-124, reflective film-13, light guide plate-14, optical film-15, diffusion film-151, light enhancement film-152, brightness enhancement film-153, light bar-16, foam glue-17,

[0020] The present application realizes, functional characteristics and advantages will be further described with reference to the embodiments. DETAILED DESCRIPTION

[0021] The specific embodiments of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the description of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0022] In the description of the utility model, unless another definite provision and limitation, the term "arrange", "install", "connect" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms can be understood according to specific circumstances.

[0023] The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, and is merely for the convenience of description and simplification of description, and does 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 utility model.

[0024] The terms "first", "second", "third" and the like merely distinguish similar attributes, and do not indicate or imply relative importance or a particular order.

[0025] The terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to containing the listed elements, other elements not explicitly listed can also be contained.

[0026] As shown in Figure 1 and Figure 2 The vehicle-mounted backlight module of the utility model avoids paint peeling of the appearance of die-casting, adopts double-screen, triple-screen or multi-screen, so the length of the vehicle-mounted backlight module exceeds 1 meter, the vehicle-mounted backlight module avoiding paint peeling of the appearance of die-casting includes lower frame 11 and middle frame 12, the lower frame 11 includes bottom plate 111, side frame and connecting piece, the length of the bottom plate 111 is greater than 1 meter, the bottom plate 111 is fixedly connected with the side frame and forms accommodating cavity 101, the connecting piece is arranged in the accommodating cavity 101, the connecting piece includes first connecting plate 116, second connecting plate 117 and third connecting plate 118, the first connecting plate 116 and the second connecting plate 117 are fixedly connected at both ends of the bottom plate 111 respectively, the third connecting plate 118 is arranged between the first connecting plate 116 and the second connecting plate 117, and the middle frame 12 is connected with the lower frame 11 through the first connecting plate 116, the second connecting plate 117 and the third connecting plate 118.

[0027] The utility model discloses a vehicle-mounted backlight module connects the connecting piece fixedly in the accommodation cavity 101, makes the middle frame 12 connect with the lower frame 11 through the connecting piece, and the structural design of connecting piece not only can increase the structural strength of vehicle-mounted backlight module, but also can bear greater external force and vibration, will not influence the appearance spraying surface of lower frame 11, improves the appearance yield of lower frame 11, avoids the phenomenon of the lacquer surface of lower frame 11 being scraped off or damaged when the middle frame 12 is connected with lower frame 11, improves the quality and production efficiency of product, reduces the cost of product.

[0028] Preferably, the middle frame 12 includes a main body portion 121, a first fixing portion 122, a second fixing portion 123, and a support portion 124, the first fixing portion 122, the second fixing portion 123, and the support portion 124 are fixedly connected to the main body portion 121 respectively, the first fixing portion 122 is connected with the first connecting plate 116, the second fixing portion 123 is connected with the second connecting plate 117, and the support portion 124 is connected with the third connecting plate 118.

[0029] Preferably, the first connecting plate 116 is arranged along the width direction of the bottom plate 111, and the second connecting plate 117 is arranged along the width direction of the bottom plate 111.

[0030] Preferably, the side frame includes a first side plate 112 and a second side plate 113 arranged oppositely, and a third side plate 114 and a fourth side plate 115 arranged oppositely, the first side plate 112 and the second side plate 113 are fixedly connected between the third side plate 114 and the fourth side plate 115, two ends of the first connecting plate 116 are connected with the first side plate 112 and the second side plate 113 respectively, and two ends of the second connecting plate 117 are connected with the first side plate 112 and the second side plate 113 respectively; this structural design can increase the structural strength of the product, so that the product can bear greater external force and vibration, the first connecting plate 116 and the second connecting plate 117 can effectively fix the lower frame 11, and prevent the lower frame 11 from being displaced or deformed during use.

[0031] In another preferable embodiment, one end of the first connecting plate 116 is connected with the first side plate 112, the other end of the first connecting plate 116 is arranged spaced apart from the second side plate 113, one end of the second connecting plate 117 is connected with the first side plate 112, and the other end of the second connecting plate 117 is arranged spaced apart from the second side plate 113.

[0032] In another preferable embodiment, two ends of the first connecting plate 116 are arranged spaced apart from the first side plate 112 and the second side plate 113 respectively, and two ends of the second connecting plate 117 are arranged spaced apart from the first side plate 112 and the second side plate 113 respectively.

[0033] Preferably, the lower frame 11 further comprises a spacing beam 119 fixedly connected to the bottom plate 111, the spacing beam 119 is arranged along the width direction of the bottom plate 111, and the spacing beam 119 is arranged between the third side plate 114 and the fourth side plate 115. The third connecting plate 118 is fixedly connected to the spacing beam 119.

[0034] Preferably, the third connecting plate 118 comprises a first connecting section 1181 and a second connecting section 1182, the first connecting section 1181 and the second connecting section 1182 are arranged in a spaced manner, the first connecting section 1181 is fixedly connected to the first side plate 112, and the second connecting section 1182 is fixedly connected to the second side plate 113.

[0035] In another preferred embodiment, the third connecting plate 118 comprises a first connecting section 1181 and a second connecting section 1182, the first connecting section 1181 and the second connecting section 1182 are arranged in a spaced manner, the first connecting section 1181 is arranged in a spaced manner with the first side plate 112, and the second connecting section 1182 is arranged in a spaced manner with the second side plate 113.

[0036] In another preferred embodiment, the third connecting plate 118 is an integral structure, and the third connecting plate 118 is arranged in a spaced manner with the first side plate 112 and the second side plate 113.

[0037] In another preferred embodiment, the third connecting plate 118 is an integral structure, and the two ends of the third connecting plate 118 are connected to the first side plate 112 and the second side plate 113, respectively.

[0038] Preferably, the vehicle-mounted backlight module for avoiding paint peeling of the appearance of the die casting further comprises a reflective film 13, a light guide plate 14, and an optical film 15. The reflective film 13 is arranged in the accommodating cavity 101, the light guide plate 14 is arranged on the reflective film 13, and the optical film 15 is arranged on the light guide plate 14. The reflective film 13 and the light guide plate 14 are fixedly connected to each other, and the light guide plate 14 and the optical film 15 are fixedly connected to each other. The optical film 15 comprises a diffusion film 151, a light enhancement film 152, and a brightness enhancement film 153. The diffusion film 151 is arranged on the light guide plate 14, the light enhancement film 152 is arranged on the diffusion film 151, and the brightness enhancement film 153 is arranged on the light enhancement film 152. The diffusion film is fixedly connected to the light guide plate 14 by means of double-sided adhesive tape, and the diffusion film 151, the light enhancement film 152, and the brightness enhancement film 153 are fixedly connected by means of double-sided adhesive tape.

[0039] Preferably, the vehicle-mounted backlight module for avoiding paint peeling of the appearance of the die casting further comprises a light bar 16, and the light bar 16 is fixedly connected to the inner wall of the side frame. Specifically, the light bar 16 is fixedly connected to the side frame by means of heat-conducting double-sided adhesive tape.

[0040] Preferably, the vehicle-mounted backlight module avoiding paint peeling of the appearance of the die casting further comprises a foam tape 17 arranged on the side wall of the lower frame 11, and the foam tape 17 is used for buffering and fixing the display screen.

[0041] The utility model also relates to a kind of vehicle-mounted display device, including the vehicle-mounted backlight module avoiding paint peeling of the appearance of the die casting described above.

[0042] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the appended claims.

Claims

1. An in-vehicle backlight module for avoiding paint drop of die casting appearance, characterized in that, The lower frame (11) comprises a bottom plate (111), a side frame and a connecting piece, the bottom plate (111) is fixedly connected with the side frame and forms a containing cavity (101), the connecting piece is arranged in the containing cavity (101), the connecting piece comprises a first connecting plate (116), a second connecting plate (117) and a third connecting plate (118), the first connecting plate (116) and the second connecting plate (117) are fixedly connected at two ends of the bottom plate (111) respectively, and the third connecting plate (118) is arranged between the first connecting plate (116) and the second connecting plate (117), and the middle frame (12) is connected with the lower frame (11) through the first connecting plate (116), the second connecting plate (117) and the third connecting plate (118).

2. The vehicle-mounted backlight module for avoiding paint peeling of die casting appearance according to claim 1, wherein, The middle frame (12) comprises a main body part (121), a first fixed part (122), a second fixed part (123) and a supporting part (124), the first fixed part (122), the second fixed part (123) and the supporting part (124) are fixedly connected to the main body part (121) respectively, the first fixed part (122) is connected with the first connecting plate (116), the second fixed part (123) is connected with the second connecting plate (117), and the supporting part (124) is connected with the third connecting plate (118).

3. The vehicle-mounted backlight module for avoiding paint peeling of die casting appearance according to claim 1, wherein, The first connecting plate (116) is arranged along the width direction of the bottom plate (111), and the second connecting plate (117) is arranged along the width direction of the bottom plate (111).

4. The vehicle-mounted backlight module for avoiding paint peeling of die casting appearance according to claim 3, characterized in that, The side frame comprises a first side plate (112) and a second side plate (113) arranged oppositely and a third side plate (114) and a fourth side plate (115) arranged oppositely, the first side plate (112) and the second side plate (113) are fixedly connected between the third side plate (114) and the fourth side plate (115), two ends of the first connecting plate (116) are connected with the first side plate (112) and the second side plate (113) respectively, and two ends of the second connecting plate (117) are connected with the first side plate (112) and the second side plate (113) respectively. Or one end of the first connecting plate (116) is connected with the first side plate (112), the other end of the first connecting plate (116) is arranged at intervals with the second side plate (113), one end of the second connecting plate (117) is connected with the first side plate (112), and the other end of the first connecting plate (116) is arranged at intervals with the second side plate (113). Or two ends of the first connecting plate (116) are arranged at intervals with the first side plate (112) and the second side plate (113) respectively, and two ends of the second connecting plate (117) are arranged at intervals with the first side plate (112) and the second side plate (113) respectively.

5. The vehicle-mounted backlight module for avoiding paint peeling of die casting appearance according to claim 4, characterized in that, The lower frame (11) further comprises a spacing beam (119) fixedly connected to the bottom plate (111), the spacing beam (119) is arranged along the width direction of the bottom plate (111), the spacing beam (119) is arranged between the third side plate (114) and the fourth side plate (115), and the third connecting plate (118) is fixedly connected to the spacing beam (119).

6. The vehicle-mounted backlight module for avoiding paint peeling of die casting appearance according to claim 5, characterized in that, The third connecting plate (118) comprises a first connecting section (1181) and a second connecting plate (117), the first connecting section (1181) and the second connecting section (1182) are arranged in a spaced manner, the first connecting section (1181) is fixedly connected to the first side plate (112), and the second connecting section (1182) is fixedly connected to the second side plate (113). Or the third connecting plate (118) comprises a first connecting section (1181) and a second connecting section (1182), the first connecting section (1181) and the second connecting section (1182) are arranged in a spaced manner, the first connecting section (1181) is arranged in a spaced manner with the first side plate (112), and the second connecting section (1182) is arranged in a spaced manner with the second side plate (113). Or the third connecting plate (118) is an integral structure, and the third connecting plate (118) is arranged in a spaced manner with the first side plate (112) and the second side plate (113). Or the third connecting plate (118) is an integral structure, and the two ends of the third connecting plate (118) are connected to the first side plate (112) and the second side plate (113) respectively.

7. The vehicle-mounted backlight module for avoiding paint peeling of die casting appearance according to any one of claims 1 to 6, characterized in that, The length of the bottom plate (111) is greater than 1 meter.

8. The vehicle-mounted backlight module for avoiding paint peeling of die casting appearance according to any one of claims 1 to 6, characterized in that, The vehicle-mounted backlight module capable of avoiding paint peeling of die casting appearance further comprises a reflective film (13), a light guide plate (14) and an optical film (15), the reflective film (13) is arranged in the accommodating cavity (101), the light guide plate (14) is arranged on the reflective film (13), and the optical film (15) is arranged on the light guide plate (14).

9. The vehicle-mounted backlight module for avoiding paint peeling of die casting appearance according to claim 8, characterized in that, The vehicle-mounted backlight module capable of avoiding paint peeling of die casting appearance further comprises a lamp strip (16), and the lamp strip (16) is fixedly connected to the inner wall of the side frame.

10. A display device for a vehicle, characterized by comprising: The vehicle-mounted backlight module capable of avoiding paint peeling of die casting appearance comprises the vehicle-mounted backlight module capable of avoiding paint peeling of die casting appearance according to any one of claims 1 to 9.

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