Projector equipped with efficient heat dissipation mechanism and system thereof

Abstract

The invention relates to the technical field of projectors, in particular to a projector equipped with an efficient heat dissipation mechanism and a system thereof, the projector comprises a projector main body, a baffle net is arranged on the projector main body, a fan and a scraper blade are arranged on the baffle net, an air outlet part of the fan is connected with an air guide pipe, an air distribution pipe is arranged at the top end of the air guide pipe, and the air distribution pipe is connected with an air outlet of the fan. A driving assembly is arranged on the outer wall of the air distribution pipe, and an air outlet plate is connected to the air distribution pipe. Air circulating in an air guide pipe is exhausted through an air outlet hole and blown to a splicing plate, the splicing plate drives a connecting rod, a sliding plate and a limiting plate to move and disconnect the limiting plate from a lifting block, the lifting block can move downwards to make contact with a start-stop switch, a driving gear can drive two baffles to block the air outlet hole, and the air outlet hole is blocked; and the air inlet is blocked by the air baffle, so that the fan can perform fixed-point heat dissipation on the light-emitting diode and the mainboard through the air guide pipe and the air distribution pipe, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of projectors, in particular to a projector equipped with a high-efficiency heat dissipation mechanism and a system thereof. Background Art

[0002] As a kind of electronic instrument, projector is widely used in people's daily life. It is a device that receives a signal source and projects or reflects images or videos onto a screen through digital light processing technology or LCD liquid crystal imaging technology. Since many components in the projector (such as light source, motherboard, etc.) will generate a lot of heat during operation, it is necessary to install a heat dissipation mechanism inside the projector to dissipate the heat inside the projector.

[0003] The heat dissipation mechanism on some existing projectors adopts a directly installed fan to absorb heat by ensuring that the air inside the projector can circulate with the outside world. This heat dissipation method can only dissipate heat inside the projector as a whole, while the components in the projector that generate more heat cannot be cooled at a fixed point by the wind blown by the fan. The heat dissipation efficiency is low and needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a projector and a system thereof equipped with an efficient heat dissipation mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a projector equipped with a high-efficiency heat dissipation mechanism, comprising a projector body, a baffle net is arranged on the projector body, a fan and a scraper are arranged on the baffle net, an air outlet of the fan is connected to an air duct, an air distribution duct is arranged at the top of the air distribution duct, a driving assembly is arranged on the outer wall of the air distribution duct, an air outlet plate is connected to the air distribution duct, a main board is arranged below the air outlet plate, a power supply and a copper tube are connected to the bottom end of the main board, and a light source assembly is arranged on the air duct.

[0006] The light source assembly includes a mounting frame, a start-stop assembly is arranged in the mounting frame, a plurality of mounting plates are connected to the mounting frame, a plurality of mounting holes are arranged on the mounting plates, and light-emitting diodes are arranged in the mounting holes, docking through holes are arranged on the upper, lower, left and right side walls of the mounting holes, an air outlet is arranged on the rear back side wall of the mounting frame, and a plurality of air inlets are arranged on the right side wall of the mounting frame.

[0007] The driving assembly includes a support plate, a driving gear is provided at the top of the support plate, two tooth plates are movably fitted on the outer wall of the driving gear, baffles are provided on both tooth plates, telescopic connecting rods are provided on the baffles, and a fixing ring is provided on the telescopic connecting rod.

[0008] The driving assembly also includes a fixing frame, a through hole is arranged on the fixing frame, and a lifting rod is movably installed in the through hole on the fixing frame, and a lifting spring is arranged on the outer wall of the lifting rod, a roller is connected to the bottom end of the lifting rod, a connecting plate is arranged on the top end of the lifting rod, and a plurality of wind shields are arranged on the connecting plate.

[0009] A triangular block is arranged on the top of one of the toothed plates, a sliding groove is arranged on the side wall of the triangular block, and the width dimension of the sliding groove is the same as the diameter dimension of the roller.

[0010] The start-stop assembly includes a fixed frame, two movable slide grooves are provided on the fixed frame, slide plates are provided in the two movable slide grooves, connecting rods and limit plates are provided on the slide plates, and the two connecting rods pass through the fixed frame and are connected to movable disks, an assembly plate is provided between the two movable disks, and reset springs are provided on the movable disks.

[0011] A lifting block is arranged in the fixed frame, two rotating drums are arranged on the lifting block, a winding reel is arranged above the lifting block, and a start-stop switch is arranged below the lifting block.

[0012] The start-stop assembly further includes an arc-shaped air guide plate, and an air guide port is arranged on the arc-shaped air guide plate.

[0013] A plurality of air outlet holes are arranged on a side wall of the air guide duct close to the main board, and the plurality of air outlet holes are divided into two rows and are located below the two baffles.

[0014] A heat dissipation system for a projector, the system comprising:

[0015] A power supply module, used to supply power to electrical components in the entire device;

[0016] The processing module transmits the power provided by the power supply module to the drive module and the start-stop module;

[0017] A drive module is used to control the operation of the fan;

[0018] The start-stop module is integrated in the start-stop switch and is used to control the opening and closing of the take-up reel and the drive gear.

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

[0020] The present invention discharges the air circulating in the air duct through the air outlet and blows it toward the assembling plate, and the assembling plate drives the connecting rod, the slide plate, and the limit plate to move and disconnect the contact between the limit plate and the lifting block, so that the lifting block can move downward to contact the start-stop switch, so that the driving gear can drive the two baffles to block the air outlet and block the air inlet through the wind shield, so that the fan can perform fixed-point heat dissipation on the light-emitting diode and the main board through the air duct and the air distribution duct, thereby improving the heat dissipation efficiency.

[0021] The slide plate and the limit plate are reset by the reset spring, so that the limit plate moves to the top of the lifting plate, which is convenient for re-limiting the position of the lifting plate and facilitating the lifting plate to move downward for a second time, and regularly performing fixed-point heat dissipation on the light-emitting diode and the mainboard.

[0022] The roller and the lifting rod are pushed downward by the lifting spring, and the wind shield and the connecting plate can synchronously follow the vertical lifting movement of the lifting rod, so that when the driving gear rotates and drives the two tooth plates to move translationally, the wind shield can synchronously lift and lower vertically to adjust its position. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the internal structure of the projector of the present invention.

[0025] Figure 3 It is a schematic diagram of the local structure of the present invention.

[0026] Figure 4 This is a schematic diagram of the fan operation of the present invention.

[0027] Figure 5 It is a schematic diagram of the structure of the light source assembly of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure decomposition of the light source assembly of the present invention.

[0029] Figure 7 It is a schematic diagram of the mounting plate structure of the present invention.

[0030] Figure 8 It is a schematic diagram of the structure of the driving component of the present invention.

[0031] Fig. 9 It is an enlarged schematic diagram of the drive assembly structure of the present invention.

[0032] Fig.10 It is a structural schematic diagram of the start-stop component of the present invention.

[0033] Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure in the middle.

[0034] Fig.12 It is a schematic diagram of the fixed frame structure of the present invention.

[0035] Fig.13 For the present invention Fig.12 Enlarged schematic diagram of the structure at point B in the middle.

[0036] Fig.14The figure is a block diagram of the overall system for heat dissipation of the projector of the present invention.

[0037] In the figure: 1. Projector body; 2. Light source assembly; 3. Main board; 4. Power supply; 5. Screen; 6. Fan; 7. Scraper; 8. Air duct; 9. Air distribution duct; 10. Air outlet plate; 11. Copper tube; 12. Driving assembly; 13. Mounting frame; 14. Mounting plate; 15. Mounting hole; 16. Docking hole; 17. Light-emitting diode; 18. Air inlet; 19. Air outlet; 20. Support plate; 21. Driving gear; 22. Tooth plate; 23. Baffle; 24. Telescopic connecting rod; 25. Fixing Ring; 26, fixed frame; 27, lifting rod; 28, lifting spring; 29, roller; 30, connecting plate; 31, wind shield; 32, triangle block; 33, air outlet; 34, start-stop assembly; 35, arc-shaped air guide plate; 36, air guide port; 37, movable disk; 38, assembly plate; 39, reset spring; 40, connecting rod; 41, fixed frame; 42, movable slide; 43, slide plate; 44, limit plate; 45, lifting block; 46, rotating drum; 47, winding reel; 48, start-stop switch. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figures 1 to 13 The present invention provides a technical solution: a projector equipped with an efficient heat dissipation mechanism, comprising a projector body 1, such as Figure 1-Figure 4As shown in the figure, a through hole is provided on the right side wall of the projector body 1, and a blocking net 5 is installed in the through hole, and a plurality of filter holes are provided on the blocking net 5 to prevent debris and dust from entering the interior of the projector body 1. A fan 6 is installed on the right inner wall of the projector body 1, and the fan 6 is composed of a rotating motor, a rotating shaft, and a plurality of fan blades. The rotating shaft is installed on the rotating motor, and the plurality of fan blades are fixedly installed on the rotating shaft. The rotating shaft passes through the blocking net 5 and extends to the right side of the blocking net 5. A sliding groove is provided on the outer wall of the rotating shaft, and a scraper 7 is slidably installed in the sliding groove, and the scraper 7 and the sliding groove are connected. The inner walls on the right side of the groove are connected by a spring, and the scraper 7 is pushed by the spring to be close to the baffle 5, so that the scraper 7 can be driven to scrape the dust on the baffle 5 during the rotation of the fan 6. An air guide duct 8 is set on the outer wall of the fan 6, and an opening is provided on the top side wall of the air guide duct 8, and a branch air duct 9 is fixedly inserted in the opening, and the side of the branch air duct 9 not connected to the air guide duct 8 is connected to an air outlet plate 10, and the air outlet plate 10 is a hollow plate, one end of the branch air duct 9 extends into the inner cavity of the air outlet plate 10, and a plurality of holes are provided on the bottom side wall of the air outlet plate 10, and the fan 6 drives the cooling After the air enters the air outlet plate 10, it can be directly blown to the main board 3 through the hole at the bottom of the air outlet plate 10 to dissipate the heat of the main board 3. The front face of the air outlet plate 10 is provided with an insertion port, and a copper tube 11 is inserted in the insertion port, and the copper tube 11 extends to the bottom of the air outlet plate 10. An opening is provided on one side of the copper tube 11 close to the rear side wall of the projector body 1 to facilitate the discharge of the air flowing in the copper tube 11. An air outlet opening is provided on the rear side wall of the projector body 1, and a dust shield is obliquely installed in the air outlet opening. The dust is discharged through the air outlet 19 and the opening on the copper tube 11. The hot air can be discharged from the inside of the projector body 1 through the air outlet opening, and the main board 3 is supported on the top of the copper tube 11, that is, the main board 3 is located between the copper tube 11 and the air outlet plate 10, and the power supply 4 is installed at the bottom of the main board 3. The power supply 4 is connected to the electrical equipment in the projector body 1 through a line, and a driving component 12 is installed on the outer wall of the air distribution duct 9, and the light source component 2 is connected to the left side of the air guide duct 8, and the liquid crystal screen, the mirror, and the reflector are arranged on the left side of the light source component 2, and an opening is provided on the side wall of the front end face of the projector body 1, and a magnifying glass is installed in the opening.

[0040] See also Figure 5-Figure 7The light source assembly 2 includes a mounting frame 13, a start-stop assembly 34 is installed on the right side of the mounting frame 13, a plurality of mounting plates 14 are installed on the left side wall of the mounting frame 13, and the plurality of mounting plates 14 are all in contact with the left side wall of the mounting frame 13, and a plurality of mounting holes 15 are provided on the mounting plates 14, and a light-emitting diode 17 is installed in each mounting hole 15, and the left side wall of the light-emitting diode 17 has the same diameter as the mounting hole 15, and the right side wall of the light-emitting diode 17 is one centimeter smaller than the diameter of the mounting hole 15, so that cold air can enter the mounting hole 15 to dissipate heat for the light-emitting diode 17, and the plurality of light-emitting diodes 17 can be powered by the power supply 4 to start working at the same time, and a plurality of light-emitting diodes 17 are provided on the outer wall of the mounting hole 15. There are four docking through holes 16, and the docking through holes 16 are evenly distributed around the light-emitting diode 17. The upper, lower, left and right mounting holes 15 are connected through the docking through holes 16 to ensure that air can enter the mounting holes 15 and circulate in the later stage. An air outlet 19 is provided on the rear back side wall of the mounting frame 13, and a dustproof net is installed in the air outlet 19 to prevent dust from entering. A plurality of air inlets 18 are provided on the right side wall of the mounting frame 13, and an insertion hole is also provided on the right side wall of the mounting frame 13. The diameter of the insertion hole is the same as the outer circle diameter of the air duct 8, which can facilitate the fixed connection of the air duct 8 and the mounting frame 13 to form a whole, and send cold air into the mounting frame 13 through the air duct 8 to dissipate heat for the light-emitting diode 17.

[0041] See also Figure 8-Figure 9The driving assembly 12 includes a support plate 20, which is fixedly mounted on the outer wall of the air distribution duct 9. A driving gear 21 is installed on the top of the support plate 20. A toothed plate 22 is movably fitted on the front and rear side walls of the driving gear 21. The driving gear 21 is composed of a rotating motor and a toothed ring. The toothed ring is sleeved on the outer wall of the rotating motor, and the outer wall of the toothed ring and the side where the two toothed plates 22 are close to each other are provided with a plurality of teeth that can mesh with each other, so that during use, the two toothed plates 22 are driven to move synchronously by the rotation of the driving gear 21, and the bottom ends of the two toothed plates 22 are connected to baffles 23, and the sides where the two baffles 23 are away from each other are provided with two telescopic connecting rods 24, and two fixing rings 25 are fixedly sleeved on the outer wall of the air guide duct 8, and the fixing rings 25 are connected to the corresponding Two adjacent telescopic connecting rods 24 are fixedly connected, and the telescopic connecting rod 24 is composed of a cross bar and a movable rod. One side of the cross bar is fixedly connected to the fixing ring 25, and an opening is provided on the side of the cross bar that is not connected to the fixing ring 25, and a movable rod is slidably installed in the opening, and the diameter size on the cross bar is the same as the diameter size box of the movable rod, and the side of the movable rod away from the cross bar is fixedly connected to the baffle 23, so that when the tooth plate 22 is driven to move by the driving gear 21, the two baffles 23 can be driven to start translational movement on the outer wall of the air duct 8 at the same time. The driving assembly 12 also includes a fixed frame 26, and the fixed frame 26 is fixedly installed on the mounting frame 13, and the upper and lower ends of the fixed frame 26 are provided with through holes, and a lifting rod 27 is movably installed in the through hole, and a movable sleeve on the outer wall of the lifting rod 27 A lifting spring 28 is installed, and the upper and lower ends of the lifting spring 28 are respectively fixedly connected to the bottom end of the fixed frame 26 and the outer wall of the lifting rod 27, and a roller 29 is installed at the bottom end of the lifting rod 27, and a connecting plate 30 is fixedly connected to the top of the lifting rod 27, and a plurality of wind shields 31 are installed on the connecting plate 30, and the number of wind shields 31 is the same as the number of air inlets 18, and the length and width of the wind shields 31 are the same as the length and width of the air inlet 18, and a triangular block 32 is installed at the top of the toothed plate 22 directly below the roller 29, and a slide groove is provided on the side wall of the triangular block 32 that fits the roller 29, and the width of the slide groove is the same as the width of the roller 29, and the roller 29 slides in the slide groove at the top of the triangular block 32, which can ensure that the toothed plate 22 moves during movement. In the embodiment, the roller 29 can translate and drive the lifting rod 27 to move up and down. A plurality of air outlets 33 are arranged on the side wall of the air duct 8 close to the main board 3. An arc guide plate is arranged at the position where the air outlets 33 extend into the interior of the air duct 8. The arc guide plate can facilitate the cold air flowing in the air duct 8 to be guided into the air distribution duct 9. The plurality of air outlets 33 are divided into two rows and are located between the two baffles 23. The baffles 23 can move to cover all the air outlets 33. That is, during the rotation of the driving gear 21, the two tooth plates 22 are driven to move, so that the two baffles 23 can approach each other and cover the air outlets 33. Because the triangular block 32 moves to the right, the roller 29 and the lifting rod 27 move downward under the influence of the lifting spring 28.The windshield 31 is driven to block the air inlet 18 on the installation frame 13, preventing cold air from entering the installation frame 13 through the air inlet 18, and stopping the comprehensive heat dissipation inside the projector body 1. The fan 6 inhales the cold air inside the projector body 1 and guides it into the installation frame 13 and the air outlet plate 10 through the air duct 8 and the air distribution duct 9, and concentrates on the heat dissipation of the light-emitting diode 17 and the main board 3 inside the projector body 1, so as to avoid that the main board 3 and the light-emitting diode 17, which provide higher heat, cannot be focused on during long-term use.

[0042] See also Figure 10-13The start-stop assembly 34 includes a fixed frame 41, which is fixedly mounted on the left side wall of the mounting frame 13, and movable slide grooves 42 are provided on the inner walls on both sides of the front and rear sides of the fixed frame 41, and slide plates 43 are slidably installed in the movable slide grooves 42, and the right side wall of the slide plate 43 is connected with a connecting rod 40, and the connecting rod 40 passes through the fixed frame 41 and the inner wall of the mounting frame 13 and extends to the right side of the mounting frame 13, and movable disks 37 are installed on the right sides of the two connecting rods 40, and the two movable disks 37 are connected by an assembling plate 38, and the assembling plate 38 and the movable disk 37 are made of foam board and have a light weight, and the left side wall of the movable disk 37 is connected to the right side wall of the mounting frame 13 by a plurality of return springs 39, and the return spring 39 generates The thrust generated is smaller than the thrust generated by the wind blown out from the air guide port 36. A limit plate 44 is fixedly installed on the side where the two slide plates 43 are close to each other, and a lifting block 45 is movably installed in the fixed frame 41. The lifting block 45 is made of a foam board. A plurality of balls are provided at the bottom end of the lifting block 45. The friction between the lifting block 45 and the limit plate 44 is reduced by the balls to avoid affecting the movement of the limit plate 44. Grooves are provided on the front and rear side walls of the lifting block 45, and a fixed shaft is installed in the groove. A rotating drum 46 is movably installed on the outer walls of the two fixed shafts. A winding drum 47 is installed on the inner wall of the top end of the fixed frame 41. The spacing between the winding drum 47 and the limit plate 44 is the same as the height of the lifting block 45. The winding drum 47 is composed of a mounting frame, a rotating motor, and a connecting rod. The connecting rope is composed of two ends connected to the rotating motor and the lifting block 45 respectively, so that after the lifting block 45 is moved to the inner wall of the bottom end of the fixed frame 41, it can be wound through the winding drum 47, and the lifting block 45 is moved and reset to the top of the two limit plates 44 and contacts with the bottom end of the winding drum 47. A start-stop switch 48 is installed on the inner wall of the bottom end of the fixed frame 41. There are two switches on the start-stop switch 48. A control switch is installed at the bottom end of the limit plate 44, and the control switch and one switch on the start-stop switch 48 are connected to the rotating motor on the driving gear 21 through a line to control the forward and reverse rotation of the driving gear 21 respectively. The other switch on the start-stop switch 48 is connected to the rotating motor of one of the structures of the winding drum 47 through a line, and is located at the start-stop The switch on the switch 48 is a start switch, and a shutdown switch is installed at the bottom of the mounting frame of one of the structures of the winding drum 47, which is convenient for controlling the rotation motor to stop working, and the shutdown switch is a touch switch, that is, after the lifting block 45 breaks the contact with the shutdown switch, the winding drum 47 needs to start working to prevent the connecting rope from affecting the downward movement of the lifting block 45, and the switch on the start-stop switch 48 that controls the work of the winding drum 47 is a reversing switch, which controls the winding drum 47 to rotate the winding connecting rope in the opposite direction. When the lifting block 45 moves downward and contacts the two switches on the start-stop switch 48, the driving gear 21 rotates to drive the two tooth plates 22 to move, so that the air inlet 18 and the air outlet 33 are blocked, and the reset spring 39 pushes the limit plate 44 to move to the top of the lifting block 45.The winding drum 47 synchronously reels the connecting rope, driving the lifting block 45 to move upward. When the lifting block 45 contacts the control switch at the bottom of the limit plate 44, the control switch can control the driving gear 21 to reverse, so that the air inlet 18 and the air outlet 33 are opened, and the air discharged from the air outlet 33 is collected by the arc-shaped air guide plate 35 and discharged through the air guide port 36, so that the limit plate 44 is pushed and disconnected from the lifting block 45, and the lifting block 45 can continue to move upward and move to the top of the limit plate 44 and contact the closing switch on the winding drum 47, and the rotating electric motor on the winding drum 47 is turned on. After receiving the shutdown command, the machine is equipped with a control module on the rotating motor, which is connected to the rotating motor and the shutdown switch through a line. The rotating motor is controlled by the control module, and the command needs to be written in advance on the control module, and the rotating motor is set to reverse one circle before closing after the shutdown switch is touched, so as to avoid the connection rope between the winding reel 47 and the lifting block 45 being in a tight state, and an arc-shaped air guide plate 35 is installed on the right side wall of the installation frame 13, and an air guide port 36 is provided on the arc-shaped air guide plate 35, and the air guide port 36 is on the same horizontal line as the assembly plate 38.

[0043] See also Fig.14 , a heat dissipation system for a projector, the system comprising:

[0044] A power supply module, used to supply power to electrical components in the entire device;

[0045] The processing module transmits the power provided by the power supply module to the driving module and the start-stop module; the processing module is a conventional electric switch processor, which receives the control signal of the control panel on the projector, and then transmits the control signal to the driving module and the start-stop module to make both work;

[0046] The drive module is used to control the operation of the fan 6; the drive module is a driver that controls the operation of the fan motor of the fan 6;

[0047] The start-stop module is integrated in the start-stop switch 48 and is used to control the opening and closing of the take-up reel 47 and the drive gear 21. The start-stop module is two inductive switches integrated in the start-stop switch 48, one controls the opening and closing of the motor on the take-up reel 47, and the other controls the opening and closing of the motor on the drive gear 21.

[0048] The above system is integrated into the mainboard of the projector, and its control function is a very simple on / off function. It is very mature and will not be described in detail here.

[0049] The power supply module provides power to the fan 6 so that the fan 6 starts working, and the interior of the projector body 1 begins to be cooled. The cold air is filtered through the baffle 5 by the fan 6 and sent into the interior of the projector body 1, and is discharged through the air outlet 33, the air outlet plate 10, and the copper tube 11 on the air guide 8, so as to cool the internal space of the projector body 1.

[0050] When the projector body 1 is working for a long time, the light-emitting diode 17 of the internal main board 3 will generate more heat. At this time, the flowing air discharged from the air outlet 33 on the air duct 8 is collected by the arc-shaped air guide plate 35 in the start-stop module and discharged through the air guide port 36 and blown onto the assembly plate 38. The assembly plate 38 is blown to shrink the reset spring 39, and push the connecting rod 40 to push the slide plate 43 to slide in the movable slide groove 42, so that the limit plate 44 breaks the contact with the bottom end of the lifting block 45. The lifting block 45 moves slowly downward in the fixed frame 41 through the rotating drum 46, and the closing switch at the bottom of the winding reel 47 breaks the contact with the lifting block 45. The winding reel 47 rotates to release the connecting rope, which facilitates the downward movement of the lifting block 45.

[0051] When the lifting block 45 contacts the start-stop switch 48, the start-stop switch 48 controls the driving gear 21 and the winding reel 47 to work. The rotation of the driving gear 21 drives the two tooth plates 22 to move and block the air outlet 33 on the air duct 8, and the wind shield 31 synchronously blocks the air inlet 18, so that the cold air sent into the projector body 1 by the fan 6 is guided through the air duct 8 and the air distribution duct 9 to dissipate heat to the light-emitting diode 17 and the main board 3, and the winding reel 47 winds up the connecting rope to move the lifting block 45 upward. At this time, because the air inlet 18 and the air outlet 33 are blocked, the reset spring 39 pushes the limit plate 44 to move to the top of the lifting block 45, and the winding reel 47 drives The lifting block 45 moves upward. When the lifting block 45 contacts the control switch at the bottom of the limit plate 44, the control switch can control the driving gear 21 to reverse, so that the air inlet 18 and the air outlet 33 are opened, and the air discharged from the air outlet 33 is collected again by the arc-shaped air guide plate 35 and discharged through the air guide port 36, so that the limit plate 44 is pushed and disconnected from the lifting block 45. The lifting block 45 can continue to move upward and move to the top of the limit plate 44 and contact the closing switch on the winding reel 47, so that the winding reel 47 stops working, completing the focused heat dissipation of the light-emitting diode 17 and the main board 3, and again performing comprehensive heat dissipation on the inside of the projector body 1.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A projector equipped with an efficient heat dissipation mechanism, comprising a projector body (1), characterized in that: The projector body (1) is provided with a baffle (5), the baffle (5) is provided with a fan (6) and a scraper (7), the air outlet of the fan (6) is connected with an air guide pipe (8), the top of the air guide pipe (8) is provided with an air distribution pipe (9), the outer wall of the air distribution pipe (9) is provided with a driving component (12), the air distribution pipe (9) is connected with an air outlet plate (10), a main board (3) is provided below the air outlet plate (10), the bottom end of the main board (3) is connected with a power supply (4) and a copper tube (11), and the air guide pipe (8) is provided with a light source component (2).

2. A projector equipped with a high-efficiency heat dissipation mechanism according to claim 1, characterized in that: The light source assembly (2) comprises a mounting frame (13), a start-stop assembly (34) is arranged in the mounting frame (13), a plurality of mounting plates (14) are connected to the mounting frame (13), a plurality of mounting holes (15) are arranged on the mounting plates (14), and light-emitting diodes (17) are arranged in each of the mounting holes (15), docking through holes (16) are arranged on the upper, lower, left and right side walls of the mounting holes (15), an air outlet (19) is arranged on the rear side wall of the mounting frame (13), and a plurality of air inlets (18) are arranged on the right side wall of the mounting frame (13).

3. A projector equipped with a high-efficiency heat dissipation mechanism according to claim 1, characterized in that: The driving assembly (12) comprises a supporting plate (20), a driving gear (21) is provided at the top end of the supporting plate (20), two tooth plates (22) are movably fitted on the outer wall of the driving gear (21), baffle plates (23) are provided on the two tooth plates (22), telescopic connecting rods (24) are provided on the baffle plates (23), and a fixing ring (25) is provided on the telescopic connecting rod (24).

4. A projector equipped with a high-efficiency heat dissipation mechanism according to claim 3, characterized in that: The driving assembly (12) further comprises a fixing frame (26), a through hole being arranged on the fixing frame (26), a lifting rod (27) being movably mounted in the through hole on the fixing frame (26), a lifting spring (28) being arranged on the outer wall of the lifting rod (27), a roller (29) being connected to the bottom end of the lifting rod (27), a connecting plate (30) being arranged at the top end of the lifting rod (27), and a plurality of wind shielding plates (31) being arranged on the connecting plate (30).

5. A projector equipped with a high-efficiency heat dissipation mechanism according to claim 3, characterized in that: A triangular block (32) is provided at the top end of one of the toothed plates (22), a sliding groove is provided on the side wall of the triangular block (32), and the width of the sliding groove is the same as the diameter of the roller (29).

6. A projector equipped with a high-efficiency heat dissipation mechanism according to claim 2, characterized in that: The start-stop assembly (34) comprises a fixed frame (41), two movable slide grooves (42) are provided on the fixed frame (41), a slide plate (43) is provided in each of the two movable slide grooves (42), a connecting rod (40) and a limit plate (44) are provided on each of the slide plates (43), and the two connecting rods (40) pass through the fixed frame (41) and are connected to a movable disk (37), an assembling plate (38) is provided between the two movable disks (37), and a return spring (39) is provided on each of the movable disks (37).

7. A projector equipped with a high-efficiency heat dissipation mechanism according to claim 6, characterized in that: A lifting block (45) is arranged in the fixed frame (41), two rotating drums (46) are arranged on the lifting block (45), a winding reel (47) is arranged above the lifting block (45), and a start-stop switch (48) is arranged below the lifting block (45).

8. A projector equipped with a high-efficiency heat dissipation mechanism according to claim 2, characterized in that: The start-stop assembly (34) further comprises an arc-shaped air guide plate (35), and an air guide port (36) is provided on the arc-shaped air guide plate (35).

9. A projector equipped with a high-efficiency heat dissipation mechanism according to claim 1, characterized in that: A plurality of air outlet holes (33) are provided on a side wall of the air guide duct (8) close to the main board (3). The plurality of air outlet holes (33) are divided into two rows and are located below the two baffles (23).

10. A heat dissipation system for a projector, applied to a projector equipped with a high-efficiency heat dissipation mechanism according to any one of claims 1 to 9, characterized in that: The system includes: A power supply module, used to supply power to electrical components in the entire device; The processing module transmits the power provided by the power supply module to the drive module and the start-stop module; A driving module, used for controlling the operation of the fan (6); The start-stop module is integrated in the start-stop switch (48) and is used to control the opening and closing of the winding reel (47) and the driving gear (21).

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