Heat dissipation structure for light source module

Abstract

The invention provides a heat dissipation structure for a light source module, and belongs to the technical field of light source modules, the heat dissipation structure comprises a lamp shell, an exhaust pipeline, a lamp panel, a columnar sealing assembly and a heat dissipation fan, the lamp panel is fixedly installed in the lamp shell, and an air inlet pipeline is arranged at the bottom of the lamp shell; an exhaust port is formed in the position, located on the lower portion of the lamp panel, of the side wall of the lamp shell, the cooling fan is installed in the air inlet pipeline and used for leading outside air into the lamp shell through the air inlet pipeline, and the exhaust pipeline is fixedly arranged on the inner wall of the lamp shell and communicates with the exhaust port. The columnar sealing assembly is arranged in the exhaust pipeline and used for sealing the exhaust pipeline, and after external air is introduced into the lamp shell, the columnar sealing assembly rotates along the interior of the exhaust pipeline. Compared with the prior art, efficient heat dissipation of the lamp panel in the lamp shell can be achieved, and the lamp shell has the advantages of being good in heat dissipation effect and high in protection performance.

Description

Technical Field

[0001] The invention belongs to the technical field of light source modules, and in particular is a heat dissipation structure for a light source module. Background Art

[0002] Most existing light source modules are encapsulated inside a shell, where the light source module includes a light board and lamp beads located on one side of the light board. The lamp beads will cause the heat of the light board to increase when illuminated for a long time. Therefore, the heat of the light board needs to be dissipated in time to ensure the normal operation of the light board and the lamp beads.

[0003] In the prior art, fin heat dissipation is mostly used for heat dissipation of lamp boards. When the fin is installed, one end of the fin extends to the inside of the shell, and the other end needs to extend to the outside of the shell. The fin is used to conduct the heat of the lamp board in the shell to the external environment. However, the fin heat dissipation method is generally static heat dissipation, and its heat dissipation effect is poor. In addition, when using fin heat dissipation, since it needs to pass through the shell, a slot corresponding to the fin must be opened on the shell. The existence of the slot will destroy the sealing of the shell, causing external rainwater to easily enter the shell from the slot position, causing the lamp board to be damaged by moisture. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a heat dissipation structure for a light source module.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A heat dissipation structure for a light source module comprises a lamp housing, an exhaust duct, a lamp panel, a columnar sealing component and a heat dissipation fan.

[0007] The lamp board is fixedly installed inside the lamp housing, an air intake duct is arranged at the bottom of the lamp housing, and an exhaust port is arranged on the side wall of the lamp housing at the lower part of the lamp board.

[0008] The cooling fan is installed inside the air intake duct and is used to introduce external air into the lamp housing through the air intake duct.

[0009] The exhaust duct is fixedly arranged on the inner wall of the lamp housing and communicates with the exhaust port.

[0010] The columnar sealing component is arranged inside the exhaust duct and is used to seal the exhaust duct. When outside air is introduced into the lamp housing, the columnar sealing component rotates along the exhaust duct to release the sealing state of the exhaust duct.

[0011] As a further improvement of the present invention: the columnar sealing assembly comprises a sealing column,

[0012] A rectangular air passage is provided on the sealing cylinder along the radial direction and passes through the sealing cylinder. The end of the sealing cylinder is rotatably connected to the inner wall of the exhaust pipe through a supporting shaft. An arc groove is provided on the outer wall of the sealing cylinder facing the air inlet end of the exhaust pipe, and a plurality of blades are fixedly arranged in the arc groove.

[0013] As a further improvement of the present invention: arc-shaped convex shells are arranged on the top and the bottom of the exhaust pipe, and the sealing column is arranged between two groups of the arc-shaped convex shells.

[0014] As a further improvement of the present invention: a limiting plate is fixedly provided on the side wall of the sealing cylinder facing the exhaust end of the exhaust pipe.

[0015] As a further improvement of the present invention: a reset component is also provided inside the rectangular air duct. When the heat inside the lamp housing is completely dissipated, the fan stops working, and the reset component drives the sealing column to rotate in the opposite direction to reseal the inner cavity of the exhaust duct.

[0016] As a further improvement of the present invention: the reset assembly includes a positioning block, an elastic member and a rectangular self-aligning frame.

[0017] The rectangular centering frame is slidably arranged inside the rectangular airway, the positioning block is fixedly installed on the inner wall of the rectangular airway, the positioning block is located on the side of the rectangular centering frame facing the air outlet end of the rectangular airway, one end of the elastic member is connected to the positioning block, and the other end is connected to the rectangular centering frame, which is used to provide elastic support for the rectangular centering frame.

[0018] As a further improvement of the present invention: the elastic member is a spring or a metal spring.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the embodiment of the present invention, when heat dissipation is not required inside the lamp housing, the columnar sealing assembly is located inside the exhaust duct and seals the exhaust duct, thereby preventing external rainwater from entering the interior of the lamp housing from the exhaust port and the exhaust duct, and preventing the lamp board from being damaged by moisture. As the lamp beads on one side of the lamp board continue to illuminate, the temperature of the lamp board gradually increases. When the lamp board needs to dissipate heat, the cooling fan located in the air intake duct is started, and the cooling fan introduces external air from the air intake duct into the lamp housing. After entering the interior of the lamp housing, the external air acts on the bottom of the lamp board, and then enters the exhaust duct and drives the columnar sealing assembly to rotate. When the columnar sealing assembly rotates, the sealing state of the exhaust duct is released, and then the external air passes through the exhaust duct and is discharged from the exhaust port to the outside of the lamp housing, thereby taking away the heat of the lamp board, thereby achieving heat dissipation of the lamp board. Compared with the prior art, it can achieve efficient heat dissipation of the lamp board inside the lamp housing, and has the advantages of good heat dissipation effect and strong protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a heat dissipation structure for a light source module Figure 1 ;

[0022] Figure 2 A schematic diagram of a heat dissipation structure for a light source module Figure 2 ;

[0023] Figure 3 A schematic diagram of the structure inside the exhaust duct in a heat dissipation structure for a light source module Figure 1 ;

[0024] Figure 4 A schematic diagram of the structure inside the exhaust duct in a heat dissipation structure for a light source module Figure 2 ;

[0025] Figure 5 A schematic diagram of the structure inside a columnar sealing component in a heat dissipation structure for a light source module;

[0026] In the figure: 10-lamp housing, 101-exhaust port, 102-intake duct, 20-exhaust duct, 201-arc convex shell, 30-lamp board, 40-columnar sealing assembly, 401-sealing column, 402-support shaft, 403-blade, 404-limiting piece, 405-rectangular airway, 50-reset assembly, 501-positioning block, 502-elastic member, 503-rectangular centering frame. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figure 1 , Figure 2 as well as Figure 3 The present embodiment provides a heat dissipation structure for a light source module, including a lamp housing 10, an exhaust duct 20, a lamp board 30, a columnar sealing assembly 40 and a heat dissipation fan (not shown in the figure), wherein the lamp board 30 is fixedly installed inside the lamp housing 10, an air intake duct 102 is arranged at the bottom of the lamp housing 10, an exhaust port 101 is opened at the side wall of the lamp housing 10 at the lower part of the lamp board 30, the heat dissipation fan is installed inside the air intake duct 102, and is used to introduce external air into the lamp housing 10 through the air intake duct 102, the exhaust duct 20 is fixedly arranged on the inner wall of the lamp housing 10 and is connected with the exhaust port 101, the columnar sealing assembly 40 is arranged inside the exhaust duct 20, and is used to seal the exhaust duct 20, and when the external air is introduced into the lamp housing 10, the columnar sealing assembly 40 rotates along the exhaust duct 20 to release the sealing state of the exhaust duct 20.

[0032] When heat dissipation is not required inside the lamp housing 10, the columnar sealing component 40 is located inside the exhaust duct 20 and seals the exhaust duct 20, thereby preventing external rainwater from entering the lamp housing 10 from the exhaust port 101 and the exhaust duct 20, and preventing the lamp board 30 from being damaged by moisture. As the lamp beads on one side of the lamp board 30 continue to illuminate, the temperature of the lamp board 30 gradually increases. When heat dissipation of the lamp board 30 is required, the cooling fan located in the air intake duct 101 is started, and the cooling fan introduces external air from the air intake duct 101 into the lamp housing 10. After the external air enters the lamp housing 10, it acts on the bottom of the lamp board 30, and then enters the exhaust duct 20 and drives the columnar sealing component 40 to rotate. When the columnar sealing component 40 rotates, the sealing state of the exhaust duct 20 is released, and then the external air passes through the exhaust duct 20 and is discharged from the exhaust port 101 to the outside of the lamp housing 10, thereby taking away the heat of the lamp board 30, thereby achieving heat dissipation of the lamp board 30.

[0033] See also Figure 3 as well as Figure 5In one embodiment, the columnar sealing assembly 40 includes a sealing column 401, a rectangular air passage 405 penetrating the sealing column 401 is opened in a radial direction on the sealing column 401, the end of the sealing column 401 is rotatably connected to the inner wall of the exhaust pipe 20 through a supporting shaft 402, and an arc groove is opened on the outer wall of the sealing column 401 facing the air inlet end of the exhaust pipe 20, and a plurality of blades 403 are fixedly arranged in the arc groove.

[0034] When heat dissipation is not required inside the lamp housing 10, the sealing column 401 is stationary inside the exhaust duct 20. At this time, the rectangular air duct 405 is vertically distributed, and the two ends of the rectangular air duct 405 are respectively located at the upper and lower inner walls of the exhaust duct 20. The plurality of blades 403 face the air inlet end of the exhaust duct 20, and the sealing column 401 itself is used to seal the exhaust duct 20, thereby preventing rainwater from the outside from entering the lamp housing 10 from the exhaust duct 20. When the lamp panel 30 inside the lamp housing 10 needs to dissipate heat, the fan is started to introduce the outside air from the air inlet duct 102 into the lamp housing 10, and the outside air is discharged from the exhaust duct 102. After the outside air acts on the lamp board 30, it enters the exhaust duct 20 from the air inlet end of the exhaust duct 20. After entering the exhaust duct 20, the outside air acts on the plurality of blades 403, thereby driving the sealing column 401 to rotate. When the sealing column 401 rotates, the rectangular air duct 405 rotates from a vertical state to a horizontal state, so that the air inlet end and the air outlet end of the exhaust duct 20 are connected. The outside air then passes through the rectangular air duct 405, and is discharged from the air outlet end of the exhaust duct 20 and the exhaust port 101 to the outside of the lamp housing 10, thereby taking away the heat of the lamp board 30 and realizing the heat dissipation of the lamp board 30.

[0035] See also Figure 3 In one embodiment, the top and bottom of the exhaust pipe 20 are both provided with arc-shaped convex shells 201 , and the sealing cylinder 401 is provided between two groups of the arc-shaped convex shells 201 .

[0036] By setting up two groups of arc-shaped convex shells 201, when the sealing column 401 is stationary inside the exhaust pipe 20, the two ends of the rectangular air channel 405 are respectively located on the inner sides of the two groups of arc-shaped convex shells 201 and are thus shielded by the arc-shaped convex shells 201, thereby improving the sealing column 401's blocking effect against external rainwater.

[0037] See also Figure 4 In one embodiment, a limiting plate 404 is fixedly provided on the side wall of the sealing cylinder 401 facing the exhaust end of the exhaust pipe 20 .

[0038] When outside air enters the exhaust duct 20 and pushes the sealing column 401 to rotate, the sealing column 401 can drive the limiting plate 404 to rotate synchronously. When the rectangular airway 405 rotates to a horizontal position, the limiting plate 404 acts on the inner wall of the exhaust duct 20, thereby limiting the sealing column 401 so that the rectangular airway 405 can be maintained in a horizontal position, thereby allowing the outside air carrying the heat of the lamp panel 30 to pass through the rectangular airway 405 smoothly, and then be discharged from the exhaust port 101 to the outside of the lamp housing 10.

[0039] See also Figure 5 In one embodiment, a reset component 50 is further provided inside the rectangular air duct 405. When the heat inside the lamp housing 10 is completely dissipated, the fan stops working, and the reset component 50 drives the sealing column 401 to rotate in the opposite direction to reseal the inner cavity of the exhaust duct 20.

[0040] Please continue reading Figure 5 In one embodiment, the reset assembly 50 includes a positioning block 501, an elastic member 502 and a rectangular centering frame 503. The rectangular centering frame 503 is slidably arranged inside the rectangular airway 405. The positioning block 501 is fixedly installed on the inner wall of the rectangular airway 405. The positioning block 501 is located on the side of the rectangular centering frame 503 facing the air outlet end of the rectangular airway 405. One end of the elastic member 502 is connected to the positioning block 501, and the other end is connected to the rectangular centering frame 503, so as to provide elastic support for the rectangular centering frame 503.

[0041] When the rectangular air duct 405 rotates to a horizontal position, the outside air carrying the heat of the lamp panel 30 passes through the inside of the rectangular air duct 405. At this time, the outside air acts on the rectangular centering frame 503 and drives the rectangular centering frame 503 to move toward the positioning block 501. The elastic member 502 is compressed. When the rectangular centering frame 503 moves a certain distance, the force of the outside air on the rectangular centering frame 503 and the thrust of the elastic member 502 on the rectangular centering frame 503 reach a balanced state, and the rectangular centering frame 503 remains stationary. When the heat dissipation inside the lamp housing 10 After completion, the fan stops working. Since no outside air passes through the rectangular air duct 405 anymore, the balance of the rectangular centering frame 503 is broken, and the elastic member 502 pushes the rectangular centering frame 503 to move in the reverse direction along the rectangular air duct 405. When the rectangular centering frame 503 moves in the reverse direction, the center of the sealing column 401 is shifted, thereby driving the sealing column 401 to rotate in the reverse direction, and the rectangular air duct 405 rotates in the reverse direction synchronously, until the rectangular air duct 405 rotates back to a vertical state, and the sealing column 401 itself reseals the exhaust duct 20.

[0042] In one embodiment, the elastic member 502 may be a spring or a metal spring, which is not limited here.

[0043] In one embodiment, a one-way valve (not shown in the figure) is also provided in the air intake duct 101. When the fan is working to introduce external air into the interior of the lamp housing 10 from the air intake duct 101, the one-way valve opens. When the heat dissipated inside the lamp housing 10 is completed, the fan stops working and the one-way valve closes, thereby preventing external rainwater from entering the interior of the lamp housing 10 from the air intake duct 101, thereby preventing the lamp board 30 from being damaged by moisture.

[0044] In the embodiment of the present invention, when heat dissipation is not required inside the lamp housing 10, the columnar sealing assembly 40 is located inside the exhaust duct 20 and seals the exhaust duct 20, thereby preventing rainwater from the outside from entering the lamp housing 10 from the exhaust port 101 and the exhaust duct 20, and preventing the lamp board 30 from being damaged by moisture. As the lamp beads on one side of the lamp board 30 continue to illuminate, the temperature of the lamp board 30 gradually increases. When heat dissipation of the lamp board 30 is required, the heat dissipation fan located in the air intake duct 101 is started, and the heat dissipation fan introduces the outside air from the air intake duct 101 into the lamp housing 10. Inside, the outside air enters the lamp housing 10 and acts on the bottom of the lamp board 30, and then enters the exhaust duct 20 and drives the columnar sealing assembly 40 to rotate. When the columnar sealing assembly 40 rotates, the sealing state of the exhaust duct 20 is released, and then the outside air passes through the exhaust duct 20 and is discharged from the exhaust port 101 to the outside of the lamp housing 10, thereby taking away the heat of the lamp board 30, thereby achieving heat dissipation of the lamp board 30. Compared with the prior art, it can achieve efficient heat dissipation of the lamp board 30 inside the lamp housing 10, and has the advantages of good heat dissipation effect and strong protection.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat dissipation structure for a light source module, characterized in that: It includes a lamp housing, an exhaust duct, a lamp panel, a columnar sealing component and a cooling fan. The lamp board is fixedly installed inside the lamp housing, an air intake duct is arranged at the bottom of the lamp housing, and an exhaust port is arranged on the side wall of the lamp housing at the lower part of the lamp board. The cooling fan is installed inside the air intake duct and is used to introduce external air into the lamp housing through the air intake duct. The exhaust duct is fixedly arranged on the inner wall of the lamp housing and communicates with the exhaust port. The columnar sealing component is arranged inside the exhaust duct and is used to seal the exhaust duct. When outside air is introduced into the lamp housing, the columnar sealing component rotates along the exhaust duct to release the sealing state of the exhaust duct.

2. The heat dissipation structure for a light source module according to claim 1, characterized in that: The columnar sealing assembly comprises a sealing column, A rectangular air passage is provided on the sealing cylinder along the radial direction and passes through the sealing cylinder. The end of the sealing cylinder is rotatably connected to the inner wall of the exhaust pipe through a supporting shaft. An arc groove is provided on the outer wall of the sealing cylinder facing the air inlet end of the exhaust pipe, and a plurality of blades are fixedly arranged in the arc groove.

3. The heat dissipation structure for a light source module according to claim 2, characterized in that: The top and the bottom of the exhaust pipe are both provided with arc-shaped convex shells, and the sealing column is arranged between two groups of the arc-shaped convex shells.

4. The heat dissipation structure for a light source module according to claim 2, characterized in that: A limiting piece is fixedly arranged on the side wall of the sealing column facing the exhaust end of the exhaust pipe.

5. The heat dissipation structure for a light source module according to claim 2, characterized in that: A reset component is also arranged inside the rectangular air duct. When the heat inside the lamp housing is completely dissipated, the fan stops working, and the reset component drives the sealing column to rotate in the opposite direction to reseal the inner cavity of the exhaust duct.

6. The heat dissipation structure for a light source module according to claim 5, characterized in that: The reset assembly includes a positioning block, an elastic member and a rectangular centering frame. The rectangular centering frame is slidably arranged inside the rectangular airway, the positioning block is fixedly installed on the inner wall of the rectangular airway, the positioning block is located on the side of the rectangular centering frame facing the air outlet end of the rectangular airway, one end of the elastic member is connected to the positioning block, and the other end is connected to the rectangular centering frame, which is used to provide elastic support for the rectangular centering frame.

7. The heat dissipation structure for a light source module according to claim 6, characterized in that: The elastic member is a spring or a metal spring.

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