Integrated aluminum alloy heat dissipation structure for backlight module

Abstract

The utility model discloses an integrated aluminum alloy heat dissipation structure for a backlight module, and aims to solve the problem that the integrated installation efficiency of aluminum profiles is low due to the fact that the aluminum profiles of the existing backlight module are mostly fixedly connected through corner connectors and need to be punched in the aluminum profiles during screw installation. The structure comprises a connecting piece and an aluminum alloy frame, the aluminum alloy frame comprises two transverse rods and two vertical rods, the cross section of each transverse rod and the cross section of each vertical rod comprise a main body part of a rectangular structure, the lower surface of each main body part is fixedly connected with a heat dissipation part, and a plurality of cavities are formed in each heat dissipation part from left to right. The connecting arms at the two ends of the connecting piece are installed in the transverse rod and the vertical rod with the 45-degree cut angles, then the lead screw is rotated through a tool, the connecting arms are expanded along the dividing holes and abut against the inner wall of the cavity through the anti-skid pads on the outer sides, and therefore the transverse rod and the vertical rod do not need to be punched, and the integrated installation efficiency of aluminum profiles is improved.

Description

Technical Field

[0001] This utility model belongs to the field of backlight module technology, specifically relating to an integrated aluminum alloy heat dissipation structure for backlight modules. Background Technology

[0002] The backlight module is one of the key components of an LCD panel. Its function is to provide sufficient brightness and uniformly distributed light source so that the LCD can display images normally. Liquid crystals themselves do not emit light; the display of graphics or characters is the result of light modulation. It mainly consists of a light source, light guide plate, optical films, and a plastic frame, and features high brightness, long lifespan, and uniform light emission. According to the type of light source, there are mainly three types of backlights: EL (electroluminescent), CCFL (cold cathode fluorescent lamp), and LED (light-emitting diode).

[0003] Existing backlight modules rely on aluminum profiles for support, connection, and heat dissipation. Since aluminum profiles are mostly integrated structures surrounding the backlight module, they are fixed by interlocking with corner brackets. Typically, threaded holes are opened on the corner brackets, which are then placed into the cavities of the aluminum profiles. Multiple screws are used to fix the corner brackets to the aluminum profiles. However, since screw installation requires drilling holes in the aluminum profiles, the integrated installation of aluminum profiles is inefficient. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an integrated aluminum alloy heat dissipation structure for backlight modules. This structure aims to solve the problem that most aluminum profiles of existing backlight modules are fixed and connected by corner brackets. Since screw installation requires drilling holes in the aluminum profiles, the integrated installation efficiency of the aluminum profiles is low.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides an integrated aluminum alloy heat dissipation structure for a backlight module. The structure includes a connector and an aluminum alloy frame. The aluminum alloy frame includes two horizontal bars and two vertical bars. The cross-section of both horizontal and vertical bars includes a rectangular main body. A heat dissipation part is fixedly connected to the lower surface of the main body. Multiple cavities are opened from left to right on the heat dissipation part, and the cavities pass through the horizontal and vertical bars. The connector includes a connecting seat. Multiple connecting arms are fixedly connected to both sides of the connecting seat. The connecting arms are inserted into the cavity. A fixing component is provided on the connecting seat to make the connecting arms press tightly against the inner wall of the cavity.

[0008] Preferably, two protrusions are fixedly connected to the left and right sides of the upper surface of the main body, a groove is formed between the two protrusions, and a column is fixedly connected to the upper surface of the protrusions.

[0009] Furthermore, the top of each of the left and right sides of the main body is provided with a first inclined surface, the top of the first inclined surface extends to the protrusion, and the left and right sides of the groove are provided with a second inclined surface that slopes toward the upper surface of the protrusion.

[0010] Furthermore, the heat dissipation section has a rectangular structure, and its width is smaller than that of the main body. The number of cavities is 11 or 12, and their tops extend into the interior of the main body. The cross-section of the cavities is rectangular, and the horizontal width of the cavities is smaller than their vertical width.

[0011] Furthermore, T-shaped grooves are provided on both sides of the connecting arm, and anti-slip pads are fixedly connected inside the T-shaped grooves. The anti-slip pads are made of rubber.

[0012] Furthermore, the fixing component includes a mounting cavity inside the connecting seat, a dividing hole in the middle of the connecting arm, a wedge block fixedly connected to the inner wall of the dividing hole away from the connecting seat, a push rod slidably connected inside the dividing hole, the other end of the push rod being located inside the mounting cavity and fixedly connected to a round head, a conical block being provided between the two round heads, a lead screw rotatably connected to the outside of the connecting seat, the other end of the lead screw being located inside the mounting cavity and threadedly connected to the conical block.

[0013] Furthermore, two guide rods are fixedly connected to the inner wall of the outer side of the mounting cavity, and two guide holes are opened on one side of the conical block, with the guide rods slidably connected to the guide holes.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The aluminum alloy frame of this utility model is made of 6303 aluminum alloy, which has good strength and corrosion resistance, enabling it to provide stable support and heat dissipation when used in backlight modules. Furthermore, the crossbars and vertical bars are integrally formed, and the cavity not only reduces weight and manufacturing costs, but also does not affect the mechanical strength of the aluminum alloy frame.

[0017] 2. This utility model involves inserting the connecting arms at both ends of the connector into the 45-degree beveled horizontal and vertical bars. At this time, the connecting arms will be inserted into the cavity on the main body. Then, the screw is rotated by a tool. During the rotation of the screw, the conical block can drive the round head and top rod on both sides to squeeze. As the top rod moves in the dividing hole, it can squeeze the wedge block. At this time, the connecting arm is spread out along the dividing hole and pressed against the inner wall of the cavity by the anti-slip pad on the outside. Thus, the horizontal and vertical bars do not need to be drilled, improving the integrated installation efficiency of the aluminum profile. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the installation structure of the connector of this utility model.

[0020] Figure 3 This is a schematic diagram of the installation cross-sectional structure of the connector of this utility model.

[0021] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of the conical block of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the connector of this utility model.

[0023] Figure 6 This is a cross-sectional structural diagram of the horizontal and vertical bars of this utility model.

[0024] The labels in the attached drawings are as follows: 1. Connector; 2. Aluminum alloy frame; 3. Horizontal bar; 4. Vertical bar; 5. Main body; 6. Heat dissipation part; 7. Cavity; 8. Connecting seat; 9. Connecting arm; 10. Fixing component; 501. Protrusion; 502. Groove; 503. Column; 504. First inclined surface; 505. Second inclined surface; 901. Anti-slip pad; 1001. Mounting cavity; 1002. Dividing hole; 1003. Wedge; 1004. Top rod; 1005. Round head; 1006. Conical block; 1007. Lead screw; 1008. Guide rod; 1009. Guide hole. Detailed Implementation

[0025] This specific embodiment is an integrated aluminum alloy heat dissipation structure for a backlight module, and its structural schematic diagram is shown below. Figures 1-6 As shown, the structure includes a connector 1 and an aluminum alloy frame 2. The aluminum alloy frame 2 includes two horizontal bars 3 and two vertical bars 4. The horizontal bars 3 and the two vertical bars 4 are made of 6303 aluminum alloy, which has good strength and wear resistance, and good heat dissipation performance. The cross-sectional width of the horizontal bars 3 and the two vertical bars 4 is 20.9mm-21.3mm, and the cross-sectional height of the horizontal bars 3 and the two vertical bars 4 is 9.6mm-9.64mm. The cross-section of the horizontal bars 3 and the vertical bars 4 each includes a rectangular main body 5. A heat dissipation part 6 is fixedly connected to the lower surface of the main body 5. Multiple cavities 7 are opened from left to right on the heat dissipation part 6. The cavities 7 pass through the horizontal bars 3 and the vertical bars 4. The connector 1 includes a connecting seat 8. Multiple connecting arms 9 are fixedly connected to both sides of the connecting seat 8. The connecting arms 9 are inserted into the cavity 7. A fixing component 10 is provided on the connecting seat 8. The fixing component 10 is used to press the connecting arms 9 against the inner wall of the cavity 7.

[0026] like Figure 2 and Figure 6As shown: In this embodiment, two protrusions 501 are fixedly connected to the left and right sides of the upper surface of the main body 5, and a groove 502 is formed between the two protrusions 501. A column 503 is fixedly connected to the upper surface of the protrusions 501. In this way, the outer side of the horizontal bar 3 and the vertical bar 4 can increase the contact area with the air, so as to better transfer the heat generated by the backlight module quickly away and achieve better heat dissipation.

[0027] like Figure 2 and Figure 6 As shown: In this embodiment, the top of the left and right sides of the main body 5 is provided with a first inclined surface 504. The top of the first inclined surface 504 extends to the protrusion 501. The column 503 is located at the top of the first inclined surface 504. The left and right sides of the groove 502 are provided with a second inclined surface 505 that is inclined towards the upper surface of the protrusion 501. The width of the upper surface of the groove 502 is greater than the width of the lower surface of the groove 502, which facilitates the overall processing and forming of the horizontal bar 3 and the vertical bar 4.

[0028] like Figure 6 As shown: In this embodiment, the heat dissipation part 6 has a rectangular structure, and the width of the heat dissipation part 6 is smaller than the width of the main body part 5. The number of cavities 7 is 11 or 12, and the top of the cavity extends into the interior of the main body part 5. The cross-section of the cavity 7 is rectangular, and the horizontal width of the cavity 7 is smaller than the vertical width. The cavity 7 not only reduces the weight and manufacturing cost, but also makes the crossbar 3 and the vertical bar 4 have high mechanical strength. Multiple cavities 7 are evenly distributed along the cross-section of the crossbar 3 and the vertical bar 4, so that the side walls and bottom walls of the crossbar 3 and the vertical bar 4 can be matched with the side plate and bottom plate of the back plate respectively, avoiding light leakage.

[0029] like Figure 2 and Figure 5 As shown: In this embodiment, T-shaped grooves are provided on both sides of the connecting arm 9, and anti-slip pads 901 are fixedly connected inside the T-shaped grooves. The anti-slip pads 901 are made of rubber. The anti-slip pads 901 increase the friction between the connecting arm 9 and the inner wall of the cavity 7, so that the connecting piece 1, the horizontal bar 3 and the vertical bar 4 are stably connected together.

[0030] like Figure 1 , Figure 2 and Figure 3As shown: In this embodiment, the fixing component 10 includes a mounting cavity 1001 formed inside the connecting seat 8. A dividing hole 1002 is formed in the middle of the connecting arm 9. The connecting arm 9 and the connecting seat 8 are made of plastic. The dividing hole 1002 passes through both sides of the connecting arm 9, allowing the connecting arm 9 to be spread around the dividing hole 1002. A wedge block 1003 is fixedly connected to the inner wall of the end of the dividing hole 1002 away from the connecting seat 8. The wedge block 1003 has a triangular structure. A push rod is slidably connected inside the dividing hole 1002. 1004, the push rod 1004 passes through the connecting seat 8 and is slidably connected to the connecting seat 8. The other end of the push rod 1004 is located inside the mounting cavity 1001 and is fixedly connected to a round head 1005. A conical block 1006 is provided between the two round heads 1005. A lead screw 1007 is rotatably connected to the outside of the connecting seat 8. An internal hexagon head is provided on the outside of the lead screw 1007, which can be rotated with a tool. The other end of the lead screw 1007 is located inside the mounting cavity 1001 and is threadedly connected to the conical block 1006.

[0031] Rotate the lead screw 1007 by turning the tool. Since the lead screw 1007 is threadedly connected to the conical block 1006, the lead screw 1007 can drive the conical block 1006 to squeeze the round head 1005 and the top rod 1004 on both sides during the rotation. As the top rod 1004 moves in the dividing hole 1002, it can squeeze the wedge block 1003. At this time, the connecting arm 9 is spread open along the dividing hole 1002 and is pressed against the inner wall of the cavity 7 by the anti-slip pad 901 on the outside.

[0032] like Figure 3 and Figure 4 As shown: In this embodiment, two guide rods 1008 are fixedly connected to the inner wall of the outer side of the mounting cavity 1001, and two guide holes 1009 are opened on one side of the conical block 1006. The guide rods 1008 are slidably connected to the guide holes 1009. The cooperation between the guide rods 1008 and the guide holes 1009 makes the movement of the conical block 1006 more stable, and prevents the lead screw 1007 from causing the conical block 1006 to rotate during the rotation process.

[0033] Working principle: During assembly, the ends of the cut horizontal bar 3 and vertical bar 4 are beveled at 45 degrees. Then, the connecting arms 9 at both ends of the connector 1 are inserted into the beveled horizontal bar 3 and vertical bar 4. At this time, the connecting arms 9 will be inserted into the cavity 7 on the main body 5. Then, the screw 1007 is rotated by a tool. Since the screw 1007 is threadedly connected to the conical block 1006, the screw 1007 can drive the conical block 1006 to squeeze the round head 1005 and the top rod 1004 on both sides during the rotation. As the top rod 1004 moves in the dividing hole 1002, it can squeeze the wedge block 1003. At this time, the connecting arms 9 are spread open along the dividing hole 1002 and pressed against the inner wall of the cavity 7 through the outer anti-slip pad 901. Thus, the horizontal bar 3 and vertical bar 4 do not need to be drilled, improving the integrated installation efficiency of the aluminum profile.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An integrated aluminum alloy heat dissipation structure for a backlight module, the structure comprising a connecting piece (1) and an aluminum alloy frame (2), characterized in that: The aluminum alloy frame (2) comprises two horizontal rods (3) and two vertical rods (4), the cross sections of the horizontal rods (3) and the vertical rods (4) each comprise a main body part (5) in a rectangular structure, the lower surface of the main body part (5) is fixedly connected with a heat dissipation part (6), a plurality of cavities (7) are formed on the heat dissipation part (6) from left to right, the cavities (7) penetrate through the horizontal rods (3) and the vertical rods (4), the connecting piece (1) comprises a connecting seat (8), the two sides of the connecting seat (8) are each fixedly connected with a plurality of connecting arms (9), the connecting arms (9) are inserted into the cavities (7), and the connecting seat (8) is provided with a fixing assembly (10), and the fixing assembly (10) is used for tightly abutting the connecting arms (9) against the inner walls of the cavities (7).

2. The integrated aluminum alloy heat spreading structure for a backlight module of claim 1, wherein, The upper surface of the main body part (5) is fixedly connected with two protruding parts (501) on the left side and the right side, a groove (502) is formed between the two protruding parts (501), and the upper surface of the protruding part (501) is fixedly connected with a stand column (503).

3. The integrated aluminum alloy heat spreading structure for a backlight module of claim 2, wherein, The top end of the main body part (5) on the left side and the right side is provided with a first inclined surface (504), the top end of the first inclined surface (504) extends to the protruding part (501), and the left side and the right side of the groove (502) are each provided with a second inclined surface (505) inclined to the upper surface of the protruding part (501).

4. The integrated aluminum alloy heat spreading structure for a backlight module of claim 3, wherein, The heat dissipation part (6) is in a rectangular structure, the width of the heat dissipation part (6) is smaller than the width of the main body part (5), the number of the cavities (7) is 11 or 12, and the top end of the cavity (7) extends to the inside of the main body part (5), the cross section of the cavity (7) is in a rectangular shape, and the horizontal width of the cavity (7) is smaller than the vertical width.

5. The integrated aluminum alloy heat spreading structure for a backlight module of claim 4, wherein, The two sides of the connecting arm (9) are each provided with a T-shaped groove, the inside of the T-shaped groove is fixedly connected with an anti-skid pad (901), and the anti-skid pad (901) is made of rubber.

6. The integrated aluminum alloy heat spreading structure for a backlight module of claim 5, wherein, The fixing assembly (10) comprises a mounting cavity (1001) formed in the inside of the connecting seat (8), a split hole (1002) is formed in the middle of the connecting arm (9), a wedge block (1003) is fixedly connected to the inner wall of the end of the split hole (1002) away from the connecting seat (8), a top rod (1004) is slidably connected to the inside of the split hole (1002), the other end of the top rod (1004) is located in the inside of the mounting cavity (1001) and is fixedly connected with a round head (1005), a tapered block (1006) is arranged between the two round heads (1005), a lead screw (1007) is rotatably connected to the outside of the connecting seat (8), and the other end of the lead screw (1007) is located in the inside of the mounting cavity (1001) and is threadedly connected with the tapered block (1006).

7. The integrated aluminum alloy heat spreading structure for a backlight module of claim 6, wherein, The outside of the inner wall of the mounting cavity (1001) is fixedly connected with two guide rods (1008), two guide holes (1009) are formed in one side of the tapered block (1006), and the guide rods (1008) are slidably connected with the guide holes (1009).

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