Heat dissipation structure for light source of projector

Abstract

The utility model provides a heat dissipation structure for a light source of a projector, which relates to the technical field of projectors and comprises a light source substrate, the bottom of the light source substrate is detachably connected with a heat conduction copper plate, the top of the light source substrate is fixedly connected with an LED light source, and a plurality of heat conduction copper pipes are uniformly fixed in the heat conduction copper plate in a penetrating manner. A plurality of heat dissipation fins are evenly fixed to the outer side of each group of heat conduction copper pipes, connecting rods are symmetrically and fixedly connected to one sides of the heat dissipation fins, a heat dissipation fan is arranged on the sides, away from the heat dissipation fins, of the connecting rods, and connecting plates are symmetrically and fixedly connected to the outer side of the heat dissipation fan; and a plurality of through holes are formed in the connecting plate on one side in an annular array mode, and through mutual cooperation of the connecting rods, the through columns, the limiting holes, the limiting inserting rods and the rotating rings, the cooling fan is convenient and fast to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of projectors, in particular to a heat dissipation structure for a projector light source. Background Art

[0002] A projector is a device that can project images or videos onto a screen. The key to determining the projection quality often lies in the projection light source structure of the projector. The projection light source structure in an existing projector generally includes a light source substrate, a heat dissipation substrate and a heat dissipation fan, wherein the light source substrate is installed on one side of the heat dissipation substrate, and the heat dissipation fan is installed on the side of the heat dissipation substrate away from the light source substrate. The heat dissipation substrate is also provided with a plurality of parallel heat dissipation fins on the side away from the light source substrate, and a heat dissipation gap is formed between two adjacent heat dissipation fins. The heat dissipation substrate conducts the heat of the light source substrate to the heat dissipation fins, and then blows air into the heat dissipation gap through the heat dissipation fan, thereby dissipating the heat, thereby ensuring that the light source substrate effectively emits light.

[0003] The current heat dissipation structure for projector light sources, as described in the patent with announcement number CN219245926U, includes a light source substrate, a heat dissipation substrate and a heat dissipation fan, wherein the light source substrate is installed on one side of the heat dissipation substrate, and a plurality of parallel heat dissipation fins are provided on the side of the heat dissipation substrate away from the light source substrate, and a heat dissipation gap is formed between two adjacent heat dissipation fins, and also includes a mounting bracket, and mounting flanges are respectively provided on opposite sides of the mounting bracket, and the mounting flanges are respectively detachably connected to the heat dissipation fins on the heat dissipation substrate, and the heat dissipation fan is installed on the mounting bracket, and the mounting bracket is also provided with vents perpendicular to the heat dissipation fins and spaced apart, and the vents correspond to the air outlets of the heat dissipation fan.

[0004] With respect to the above-mentioned related technologies, the inventor believes that using bolts to fix the mounting flange and nuts to fix the cooling fan and the mounting bracket makes it inconvenient that once the cooling fan is damaged and needs to be repaired or replaced after long-term use, each group of bolts needs to be unscrewed to remove the mounting bracket together with the cooling fan, which is quite inconvenient. Utility Model Content

[0005] The purpose of the utility model is to provide a heat dissipation structure for a projector light source to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A heat dissipation structure for a projector light source comprises a light source substrate, wherein a heat-conducting copper plate is detachably connected to the bottom of the light source substrate, an LED light source is fixedly connected to the top of the light source substrate, a plurality of heat-conducting copper tubes are uniformly penetrated and fixed inside the heat-conducting copper plate, a plurality of heat-dissipating fins are uniformly fixed on the outside of each group of the heat-dissipating copper tubes, a connecting rod is symmetrically fixedly connected to one side of each group of the heat-dissipating fins, a heat-dissipating fan is arranged on the side of the connecting rod away from the heat-dissipating fins, a connecting plate is symmetrically fixedly connected to the outside of the heat-dissipating fan, a plurality of through holes are opened in an annular array inside the connecting plate on one side, a through column is penetrated inside each group of the through holes, the through columns on both sides are respectively fixedly connected to the connecting rods on both sides, a rotating ring is rotatably connected to one side of the connecting plate away from the heat-dissipating fins, a plurality of limiting plugs are fixedly connected to the outside of the rotating ring in an annular array, each group of the limiting plugs corresponds to each group of the through columns, each group of the through columns has a limiting hole adapted to the limiting plug, and each group of the limiting plugs penetrates each group of the limiting holes.

[0008] As a further solution of the utility model: a groove matched with the light source substrate is provided on the top of the heat-conducting copper plate, and heat-conducting silicone grease is provided between the light source substrate and the inner wall of the groove.

[0009] As a further solution of the utility model: the four inner corners of the light source substrate are fixedly connected with connecting studs, and each group of the connecting studs is threadedly connected to the heat-conducting copper plate.

[0010] As a further solution of the utility model: a torsion spring is fixedly connected to a side of the rotating ring away from the heat dissipation fins, and an end of the torsion spring away from the rotating ring is fixedly connected to the connecting plate.

[0011] As a further solution of the utility model: a lever is fixedly connected to the top of the connecting plate on one side, and a rotating rod matched with the lever is fixedly connected to the outer wall of the rotating ring.

[0012] As a further solution of the utility model: one end of the heat dissipation fin at the bottom away from the thermal copper plate is fixedly connected to a liquid pump, the two ends of each group of thermal copper tubes are respectively fixedly connected to the input end and output end of the liquid pump, and each group of thermal copper tubes is provided with thermal oil inside.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] After the utility model adopts the above structure, through the mutual cooperation of the connecting rod, the through column, the limiting hole, the limiting plug rod and the rotating ring, the rotating ring can drive each group of limiting plug rods to rotate when rotating, until each group of limiting plug rods rotates to disengage from the inside of the limiting hole, thereby releasing the limiting of the through hole, and then the connecting plate together with the cooling fan can be removed from the connecting rod, making the cooling fan convenient and quick to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of a heat dissipation structure for a projector light source.

[0016] Figure 2 A heat dissipation structure for a projector light source Figure 1 A-section structure enlarged view.

[0017] Figure 3 This is a schematic structural diagram of a heat dissipation structure for a projector light source from another perspective.

[0018] Figure 4 The figure is a cross-sectional view of the structure of a heat-conducting copper plate in a heat dissipation structure for a projector light source.

[0019] In the figure: 1. light source substrate; 2. LED light source; 3. groove; 4. connecting stud; 5. thermal copper tube; 6. heat sink fin; 7. connecting plate; 8. lever; 9. rotating ring; 10. cooling fan; 11. torsion spring; 12. limiting plug rod; 13. through column; 14. through hole; 15. limiting hole; 16. rotating rod; 17. connecting rod; 18. liquid pump; 19. thermal copper plate; 20. thermal grease; 21. thermal oil. DETAILED DESCRIPTION

[0020] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0021] See also Figure 1-4 A heat dissipation structure for a projector light source includes a light source substrate 1, the bottom of the light source substrate 1 is detachably connected to a heat-conducting copper plate 19, and a groove 3 adapted to the light source substrate 1 is provided on the top of the heat-conducting copper plate 19, and a heat-conducting silicone grease 20 is provided between the light source substrate 1 and the inner wall of the groove 3, and the heat-conducting silicone grease 20 can fill the gap between the light source substrate 1 and the groove 3, thereby increasing the heat flux, reducing the thermal resistance, and improving the heat transfer effect. The four inner corners of the light source substrate 1 are fixedly connected with connecting studs 4, and each group of connecting studs 4 is threadedly connected to the heat-conducting copper plate 19. The light source substrate 1 is connected and fixed to the groove 3 by the connecting studs 4, which can facilitate the subsequent disassembly of the light source substrate 1, so as to facilitate the removal and replacement of the LED light source 2 and the light source substrate 1.

[0022] The top of the light source substrate 1 is fixedly connected with an LED light source 2, which is used to provide light for the projector when it is started. A plurality of heat-conducting copper tubes 5 are evenly fixed through the inside of the heat-conducting copper plate 19, and a plurality of heat-dissipating fins 6 are evenly fixed on the outside of each group of heat-conducting copper tubes 5. Part of the heat generated by the light source substrate 1 and the LED light source 2 during operation can be transferred to the heat-dissipating fins 6 through the heat-conducting copper plate 19, the heat-conducting copper tubes 5 and the heat-dissipating fins 6. A liquid pump 18 is fixedly connected to one end of the bottom heat-dissipating fin 6 away from the heat-conducting copper plate 19, and the two ends of each group of heat-conducting copper tubes 5 are respectively fixedly connected to the input end and the output end of the liquid pump 18. Heat-conducting oil 21 is arranged inside each group of heat-conducting copper tubes 5. When the liquid pump 18 is started, it can drive the heat-conducting oil 21 to circulate inside each group of heat-conducting copper tubes 5, thereby improving the heat conduction efficiency.

[0023] A connecting rod 17 is symmetrically fixedly connected to one side of each group of heat dissipation fins 6, and a heat dissipation fan 10 is provided on the side of the connecting rod 17 away from the heat dissipation fins 6. The airflow generated by the heat dissipation fan 10 when starting the work can perform heat exchange on each group of heat dissipation fins 6 to achieve heat dissipation of the heat dissipation fins 6. A connecting plate 7 is symmetrically fixedly connected to the outside of the heat dissipation fan 10, and a plurality of through holes 14 are formed in a circular array inside the connecting plate 7 on one side, and a through column 13 is penetrated inside each group of through holes 14, and the through columns 13 on both sides are respectively fixedly connected to the connecting rods 17 on both sides, and the through columns 13 can play a preliminary limiting role on the connecting plate 7 when penetrating the through holes 14.

[0024] The side of the connecting plate 7 away from the heat dissipation fins 6 is rotatably connected to a rotating ring 9, and the outer side of the rotating ring 9 is fixedly connected to a plurality of limiting plugs 12 in a circular array, and each group of limiting plugs 12 corresponds to each group of through-columns 13, and each group of through-columns 13 is provided with a limiting hole 15 adapted to the limiting plugs 12 inside, and each group of limiting plugs 12 penetrates each group of limiting holes 15, and the rotating ring 9 can drive each group of limiting plugs 12 to rotate when rotating, and when each group of limiting plugs 12 rotates to penetrate the limiting holes 15, it can play a role in limiting the through-columns 13, thereby achieving the fixation of the connecting plate 7 and the heat dissipation fan 10. The side of the rotating ring 9 away from the heat dissipation fins 6 is fixedly connected to a torsion spring 11, and one end of the torsion spring 11 away from the rotating ring 9 is fixedly connected to the connecting plate 7, and the torsion spring 11 can use its own elasticity to rotate the rotating ring 9, so as to reduce the probability of the limiting plugs 12 escaping from the inside of the limiting holes 15. A lever 8 is fixedly connected to the top of the connecting plate 7 on one side, and a rotating rod 16 adapted to the lever 8 is fixedly connected to the outer wall of the rotating ring 9. The rotating rod 16 can facilitate the rotating ring 9 to rotate.

[0025] When in use, the heat generated by the LED light source 2 and the light source substrate 1 during operation can be conducted to the heat-conducting copper plate 19 through the thermal grease 20, and then the liquid pump 18 is started, so that when the liquid pump 18 starts working, it can drive the heat-conducting oil 21 to circulate inside each group of heat-conducting copper tubes 5, and the heat-conducting oil 21 flows inside the heat-conducting copper tubes 5 until it can conduct the heat-conducting copper plate 19 to the heat dissipation fins 6, and then the cooling fan 10 is started, so that when the cooling fan 10 starts working, the heat in the heat dissipation fins 6 can be taken away by the airflow, thereby realizing the heat dissipation of the light source substrate 1 and the LED light source 2. When the cooling fan 10 is damaged and needs to be replaced, it is only necessary to rotate the rotating ring 9 through the rotating rod 16. When rotating, the rotating ring 9 can drive each group of limit plug rods 12 to rotate until each group of limit plug rods 12 rotates to disengage from the inside of the limit hole 15, thereby releasing the limit on the through hole 14, and then the connecting plate 7 together with the cooling fan 10 can be removed from the connecting rod 17 to facilitate the repair or replacement of the cooling fan 10.

[0026] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A heat dissipation structure for a projector light source, comprising a light source substrate (1), wherein a heat-conducting copper plate (19) is detachably connected to the bottom of the light source substrate (1), and an LED light source (2) is fixedly connected to the top of the light source substrate (1), characterized in that: A plurality of heat-conducting copper tubes (5) are uniformly penetrated and fixed inside the heat-conducting copper plate (19), a plurality of heat-dissipating fins (6) are uniformly fixed outside each group of the heat-conducting copper tubes (5), a connecting rod (17) is symmetrically fixedly connected to one side of each group of the heat-dissipating fins (6), a heat-dissipating fan (10) is provided on the side of the connecting rod (17) away from the heat-dissipating fins (6), a connecting plate (7) is symmetrically fixedly connected to the outside of the heat-dissipating fan (10), a plurality of through holes (14) are formed in an annular array inside the connecting plate (7) on one side, and a through hole (14) is penetrated inside each group of the through holes (14) The through-columns (13) are fixedly connected to the connecting rods (17) on both sides, and the connecting plate (7) is rotatably connected to a rotating ring (9) on one side away from the heat dissipation fins (6). The outer side of the rotating ring (9) is fixedly connected to a plurality of limiting rods (12) in a circular array, and each group of the limiting rods (12) corresponds to each group of the through-columns (13). Each group of the through-columns (13) is provided with limiting holes (15) adapted to the limiting rods (12), and each group of the limiting rods (12) passes through each group of limiting holes (15).

2. The heat dissipation structure for a projector light source according to claim 1, characterized in that: A groove (3) adapted to the light source substrate (1) is provided on the top of the heat-conducting copper plate (19), and heat-conducting silicone grease (20) is provided between the light source substrate (1) and the inner wall of the groove (3).

3. The heat dissipation structure for a projector light source according to claim 2, characterized in that: The four inner corners of the light source substrate (1) are all fixedly connected with connecting studs (4), and each group of the connecting studs (4) is threadedly connected to the heat-conducting copper plate (19).

4. The heat dissipation structure for a projector light source according to claim 1, characterized in that: A torsion spring (11) is fixedly connected to one side of the rotating ring (9) away from the heat dissipation fins (6), and one end of the torsion spring (11) away from the rotating ring (9) is fixedly connected to the connecting plate (7).

5. The heat dissipation structure for a projector light source according to claim 1, characterized in that: A lever (8) is fixedly connected to the top of the connecting plate (7) on one side, and a rotating rod (16) matched with the lever (8) is fixedly connected to the outer wall of the rotating ring (9).

6. The heat dissipation structure for a projector light source according to claim 1, characterized in that: One end of the heat dissipation fin (6) at the bottom away from the heat-conducting copper plate (19) is fixedly connected to a liquid pump (18), and both ends of each group of the heat-conducting copper tubes (5) are respectively fixedly connected to the input end and the output end of the liquid pump (18), and each group of the heat-conducting copper tubes (5) is provided with heat-conducting oil (21) inside.

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