Heat dissipation structure and backlight module thereof

Abstract

The utility model discloses a heat dissipation structure and a backlight module thereof, comprising an installation housing, a heat dissipation fan arranged on the back of the installation housing, a heat dissipation hole arranged on the back of the installation housing and corresponding to the heat dissipation fan, a locking assembly arranged on the back of the installation housing, and a locking plate arranged on the back of the installation housing. The locking plate is used for clamping and locking the cooling fan, the protection assembly is arranged on the back face of the mounting shell and used for clamping and limiting the end of the locking plate, and the positioning assembly is arranged on the back face of the mounting shell and used for clamping and locking the locking plate. According to the utility model, by utilizing the cooperative use mode of the mounting shell, the cooling fan and the locking assembly, under the action of the protection assembly and the positioning assembly, the locking plate can be in a stable state to clamp and lock the cooling fan, the limitation of the positioning assembly on the locking plate is relieved, and the cooling fan can be directly disassembled and maintained by taking down the locking plate.

Description

Technical Field

[0001] This utility model relates to the field of backlight modules, and in particular to a heat dissipation structure and its backlight module. Background Technology

[0002] Backlight modules are a key component in liquid crystal displays (LCDs). Their main function is to provide a uniform backlight for the display screen. Backlight modules are widely used in various electronic devices, including televisions, computer monitors, mobile phones, tablets, and automotive displays.

[0003] Depending on the environment in which the backlight module is used, the accessories required for the backlight module will also vary. In some special environments, a cooling fan needs to be installed on the back of the backlight module to provide heat dissipation protection.

[0004] When installing cooling fans, screws are usually used for fixing. However, due to the limited thickness of the backlight module housing, the connection between the screws and the backlight module housing is limited. As a result, when the cooling fan vibrates during operation, the screws are prone to loosening and falling off. Furthermore, repeated disassembly and reassembly of the cooling fan can cause the screws to strip at the connection point with the backlight module housing, thus creating a certain defect. Utility Model Content

[0005] The purpose of this invention is to provide a heat dissipation structure and its backlight module to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation structure, comprising:

[0007] Mounting housing;

[0008] A cooling fan is provided on the back of the mounting housing, and the back of the mounting housing has ventilation holes corresponding to the cooling fan.

[0009] A locking assembly, disposed on the back of the mounting housing, the locking assembly comprising:

[0010] A locking plate is disposed on the back of the mounting housing and is used to lock the cooling fan in place.

[0011] A protective component is disposed on the back of the mounting housing and is used to snap and limit the end of the locking plate;

[0012] A positioning component is disposed on the back of the mounting housing and is used to engage and lock the locking plate.

[0013] Preferably, the locking component further includes:

[0014] A snap-fit ​​plate is fixedly installed on the side of the cooling fan, and a snap-fit ​​groove matching the snap-fit ​​plate is provided on one side of the locking plate.

[0015] The damping block has a groove on the inner wall of the snap-fit ​​groove that matches the damping block, and one side of the damping block is pressed and fitted against the snap-fit ​​plate.

[0016] Preferably, the positioning component includes:

[0017] A positioning plate, wherein the positioning plate is disposed on the back of the mounting housing;

[0018] A positioning rod, one end of which is fixedly connected to a positioning plate, and a positioning hole is provided on the back of the locking plate. The outer wall of the positioning rod is slidably engaged with the inner cavity of the positioning hole.

[0019] Preferably, the positioning component further includes:

[0020] A fixing rod, one end of which is fixedly connected to a positioning plate, and the outer wall of the fixing rod is slidably inserted into the mounting housing;

[0021] A limiting block, which is fixedly connected to the end of a fixing rod;

[0022] A limiting spring is slidably sleeved on the outer wall of the fixed rod, and the limiting spring is located between the limiting block and the mounting housing.

[0023] Preferably, the protective component includes:

[0024] A limiting plate, which is fixedly connected to the back of the mounting housing;

[0025] A locking block, which is fixedly connected to the end of the locking plate;

[0026] The card slot is located at the end of the limiting plate, and the outer wall of the card block is slidably engaged with the inner cavity of the card slot.

[0027] Preferably, the protective component further includes:

[0028] A buffer plate is disposed on the side of the limiting plate opposite to the mounting housing;

[0029] A first rubber sleeve is disposed between the buffer plate and the limiting plate.

[0030] Preferably, the protective component further includes:

[0031] A connecting column, one end of which is fixedly connected to a buffer plate, and the outer wall of the connecting column is slidably sleeved with a first rubber sleeve;

[0032] A connecting hole is provided on one side of the limiting plate, and the outer wall of the connecting post is slidably sleeved with the connecting hole;

[0033] A connecting plate, which is fixedly installed at the end of the connecting column.

[0034] Preferably, the protective component further includes:

[0035] A sliding groove is formed on the inner wall of the connecting hole, and the end of the outer wall of the connecting plate is slidably sleeved with the inner cavity of the sliding groove.

[0036] A guide rod, one end of which is fixedly connected to the inner wall of the slide groove, and the outer wall of which is slidably inserted into the connecting plate;

[0037] The second rubber sleeve is slidably fitted onto the outside of the guide rod, and one end of the second rubber sleeve is in contact with the connecting plate.

[0038] Another objective of this invention is to provide a backlight module, which includes the aforementioned heat dissipation structure.

[0039] The technical effects and advantages of this utility model are as follows:

[0040] This utility model utilizes the combined use of a mounting housing, a cooling fan, and a locking component. The locking component includes a locking plate, a protective component, and a positioning component. Under the action of the protective component and the positioning component, the locking plate can be in a stable state to lock the cooling fan. By releasing the positioning component from the locking plate, the locking plate can be removed, and the cooling fan can be directly disassembled and maintained. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0042] Figure 2 This is a schematic diagram of the internal structure of the locking plate part of this utility model.

[0043] Figure 3 This is a schematic diagram of the overall structure of the positioning plate of this utility model.

[0044] Figure 4 This is a schematic diagram of the internal structure of the side of the limiting plate of this utility model.

[0045] In the diagram: 1. Mounting housing; 2. Cooling fan; 3. Locking assembly; 31. Locking plate; 32. Protective assembly; 321. Limiting plate; 322. Locking block; 323. Buffer plate; 324. First rubber sleeve; 325. Connecting post; 326. Connecting plate; 327. Guide rod; 328. Second rubber sleeve; 33. Positioning assembly; 331. Positioning plate; 332. Positioning rod; 333. Fixing rod; 334. Limiting block; 335. Limiting spring; 34. Snap-fit ​​plate; 35. Damping block. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] This utility model provides, for example Figure 1-4 The diagram shows a heat dissipation structure.

[0048] Example 1

[0049] The device includes a mounting housing 1, a cooling fan 2, and a locking assembly 3. The cooling fan 2 is located on the back of the mounting housing 1, and the back of the mounting housing 1 has ventilation holes corresponding to the cooling fan 2. The locking assembly 3 is located on the back of the mounting housing 1 and includes a locking plate 31, a protective component 32, and a positioning component 33. The locking plate 31 is located on the back of the mounting housing 1 and is used to lock the cooling fan 2. By sliding the locking plate 31 away from the cooling fan 2, the cooling fan 2 can be directly disassembled and maintained. The protective component 32 is located on the back of the mounting housing 1 and is used to lock and retain the end of the locking plate 31. The positioning component 33 is located on the back of the mounting housing 1 and is used to lock and retain the locking plate 31, thereby ensuring that the locking plate 31 is in a stable state and locks the cooling fan 2.

[0050] Furthermore, the locking assembly 3 also includes a snap-fit ​​plate 34 and a damping block 35. The snap-fit ​​plate 34 is fixedly installed on the side of the cooling fan 2, and a snap-fit ​​groove matching the snap-fit ​​plate 34 is provided on one side of the locking plate 31, so that the locking plate 31 locks the cooling fan 2 through the snap-fit ​​plate 34. A groove matching the damping block 35 is provided on the inner wall of the snap-fit ​​groove. One side of the damping block 35 is pressed and fitted against the snap-fit ​​plate 34. The damping block 35 is made of rubber, so that when the cooling fan 2 is working, the damping block 35 can absorb some of the vibration and noise of the snap-fit ​​plate 34, thereby improving the stability of the cooling fan 2.

[0051] In particular, the positioning assembly 33 includes a positioning plate 331, a positioning rod 332, a fixing rod 333, a limiting block 334, and a limiting spring 335. The positioning plate 331 is disposed on the back of the mounting housing 1. One end of the positioning rod 332 is fixedly connected to the positioning plate 331. A positioning hole is opened on the back of the locking plate 31. The outer wall of the positioning rod 332 is slidably engaged with the inner cavity of the positioning hole. The positioning plate 331 can lock the distance between the two locking plates 31 through the two positioning rods 332, thereby ensuring the stability of the installation of the cooling fan 2 by the two locking plates 31 through the two engaging plates 34. One end of the fixing rod 333 is fixedly connected to the positioning plate 331. The outer wall of the 3 is slidably inserted into the mounting housing 1. The limiting block 334 is fixedly connected to the end of the fixing rod 333. The limiting spring 335 is slidably sleeved on the outer wall of the fixing rod 333. The limiting spring 335 is located between the limiting block 334 and the mounting housing 1. The limiting spring 335 can provide a spring force to the positioning plate 331 towards the locking plate 31 through the limiting block 334 and the fixing rod 333. The mounting housing 1 has a certain width, and corresponding space is reserved inside the mounting housing 1 at the part where the fixing rod 333 and the limiting block 334 are installed, so as to avoid the moving of the fixing rod 333 and the limiting block 334 causing collision damage to the components inside the mounting housing 1.

[0052] Example 2

[0053] Based on Embodiment 1, the protective component 32 includes a limiting plate 321, a locking block 322, and a locking groove. The limiting plate 321 is fixedly connected to the back of the mounting housing 1, the locking block 322 is fixedly connected to the end of the locking plate 31, and the locking groove is opened at the end of the limiting plate 321. The outer wall of the locking block 322 is slidably engaged with the inner cavity of the locking groove. The limiting plate 321 can engage and limit the locking plate 31 through the locking block 322, thereby ensuring the stability of the locking plate 31 in engaging and limiting the cooling fan 2.

[0054] Furthermore, the protective component 32 also includes a buffer plate 323 and a first rubber sleeve 324. The buffer plate 323 is disposed on the side of the limiting plate 321 away from the mounting housing 1, and the first rubber sleeve 324 is disposed between the buffer plate 323 and the limiting plate 321. Thus, under the action of the first rubber sleeve 324, the buffer plate 323 can have an elastic buffering force on the limiting plate 321.

[0055] Furthermore, the protective assembly 32 also includes a connecting post 325, a connecting hole, a connecting plate 326, a sliding groove, a guide rod 327, and a second rubber sleeve 328. One end of the connecting post 325 is fixedly connected to the buffer plate 323, and the outer wall of the connecting post 325 is slidably sleeved with the first rubber sleeve 324. The connecting hole is opened on one side of the limiting plate 321, and the outer wall of the connecting post 325 is slidably sleeved with the connecting hole. The connecting plate 326 is fixedly installed on the end of the connecting post 325, and the sliding groove is opened on the inner wall of the connecting hole. The end of the outer wall of the connecting plate 326 is connected with the sliding groove. The inner cavity is slidably sleeved, and the connecting plate 326 can be locked to the connecting post 325. One end of the guide rod 327 is fixedly connected to the inner wall of the slide groove, and the outer wall of the guide rod 327 is slidably sleeved with the connecting plate 326. The second rubber sleeve 328 is slidably sleeved on the outside of the guide rod 327. One end of the second rubber sleeve 328 is in contact with the connecting plate 326, and the second rubber sleeve 328 can provide a buffering force to the buffer plate 323 through the connecting plate 326 and the connecting post 325, thereby providing buffer protection to the back part of the mounting housing 1.

[0056] This embodiment provides a heat dissipation structure and its backlight module, the backlight module including the heat dissipation structure described above.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure, characterized in that, include: Mounting housing (1); Cooling fan (2), the cooling fan (2) is disposed on the back of the mounting housing (1), and the back of the mounting housing (1) is provided with heat dissipation holes corresponding to the cooling fan (2); A locking component (3) is disposed on the back of the mounting housing (1), the locking component (3) comprising: A locking plate (31) is provided on the back of the mounting housing (1) and is used to lock the cooling fan (2). A protective component (32) is disposed on the back of the mounting housing (1) and is used to snap and limit the end of the locking plate (31); Positioning component (33) is disposed on the back of the mounting housing (1) and is used to engage and lock the locking plate (31).

2. The heat dissipation structure according to claim 1, characterized in that, The locking component (3) also includes: The snap-fit ​​plate (34) is fixedly installed on the side of the cooling fan (2), and the locking plate (31) has a snap-fit ​​groove on one side that matches the snap-fit ​​plate (34). The damping block (35) has a groove on the inner wall of the snap-fit ​​groove that matches the damping block (35), and one side of the damping block (35) is pressed and fitted against the snap-fit ​​plate (34).

3. The heat dissipation structure according to claim 1, characterized in that, The positioning component (33) includes: Positioning plate (331), the positioning plate (331) is disposed on the back of the mounting housing (1); A positioning rod (332) is provided, one end of which is fixedly connected to a positioning plate (331). A positioning hole is provided on the back of the locking plate (31), and the outer wall of the positioning rod (332) is slidably engaged with the inner cavity of the positioning hole.

4. The heat dissipation structure according to claim 3, characterized in that, The positioning component (33) also includes: A fixing rod (333) is fixedly connected at one end to a positioning plate (331), and the outer wall of the fixing rod (333) is slidably inserted into the mounting housing (1). A limiting block (334) is fixedly connected to the end of a fixing rod (333); A limiting spring (335) is slidably sleeved on the outer wall of the fixing rod (333), and the limiting spring (335) is located between the limiting block (334) and the mounting housing (1).

5. A heat dissipation structure according to claim 1, characterized in that, The protective component (32) includes: A limiting plate (321) is fixedly connected to the back of the mounting housing (1); A locking block (322) is fixedly connected to the end of a locking plate (31); The slot is located at the end of the limiting plate (321), and the outer wall of the card block (322) is slidably engaged with the inner cavity of the slot.

6. A heat dissipation structure according to claim 5, characterized in that, The protective component (32) also includes: A buffer plate (323) is disposed on the side of the limiting plate (321) away from the mounting housing (1); A first rubber sleeve (324) is disposed between a buffer plate (323) and a limiting plate (321).

7. A heat dissipation structure according to claim 6, characterized in that, The protective component (32) also includes: A connecting post (325) is provided, one end of which is fixedly connected to a buffer plate (323), and the outer wall of the connecting post (325) is slidably sleeved with a first rubber sleeve (324). A connecting hole is provided on one side of the limiting plate (321), and the outer wall of the connecting post (325) is slidably sleeved with the connecting hole. A connecting plate (326) is fixedly installed at the end of the connecting column (325).

8. A heat dissipation structure according to claim 7, characterized in that, The protective component (32) also includes: A slid groove is formed on the inner wall of the connecting hole, and the end of the outer wall of the connecting plate (326) is slidably sleeved with the inner cavity of the slid groove. Guide rod (327), one end of which is fixedly connected to the inner wall of the slide groove, and the outer wall of the guide rod (327) is slidably inserted and sleeved with the connecting plate (326); The second rubber sleeve (328) is slidably sleeved on the outside of the guide rod (327), and one end of the second rubber sleeve (328) is in contact with the connecting plate (326).

9. A heat dissipation structure and its backlight module, characterized in that, The backlight module includes the heat dissipation structure as described in any one of claims 1-8.

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