CN114077132A

CN114077132A - A multimedia teaching projector

Info

Publication number: CN114077132A
Application number: CN202111181879.0A
Authority: CN
Inventors: 陈淇桦; 王晓勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-02-22
Anticipated expiration: 2041-10-11
Also published as: CN114077132B

Abstract

The invention relates to the technical field of projectors, in particular to a multimedia teaching projector, which comprises a retracting mechanism, an air cooling mechanism, a water cooling mechanism and a power-off mechanism, wherein the retracting mechanism is arranged on the upper portion of a cabinet; an air cooling mechanism is arranged below the retraction mechanism, a water cooling mechanism is arranged above the air cooling mechanism, and the power-off mechanism is arranged on one side of the water cooling mechanism; after using up, pack up the mechanism and upwards stimulate whole projecting apparatus, in taking in square cover, can avoid the dust to damage the projecting apparatus, air cooling mechanism carries out work at the trigger switch of projecting apparatus temperature when higher, air cooling mechanism changes the inside and outside cold and hot air of projecting apparatus, moreover air cooling mechanism can give when exchanging cold and hot air water cooling mechanism cools down, water cooling mechanism takes away the heat through cold water, automatic cutout power when the projecting apparatus high temperature can be again to outage mechanism lets projecting apparatus stop work, prevents that the high temperature from making the projecting apparatus damage or taking place danger.

Description

Multimedia teaching projector

Technical Field

The invention relates to the technical field of projectors, in particular to a multimedia teaching projector.

Background

The projector is a device capable of projecting images or videos onto a curtain, gradually replaces a liquid crystal screen in some environments along with development and improvement of technology, is low in manufacturing cost, and is widely applied to families, offices, schools and entertainment places.

However, the bulb of the projector is a consumable product, because the imaging system and the power supply system in the projector generate a large amount of heat, the bulb is exposed to high temperature for a long time, the service life of the bulb is shortened, and other parts in the projector are also damaged due to overheating.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a multimedia teaching projector.

The technical scheme adopted by the invention for solving the technical problems is as follows: a multimedia teaching projector comprises a retracting mechanism, an air cooling mechanism, a water cooling mechanism and a power-off mechanism; an air cooling mechanism is arranged below the packing mechanism, a water cooling mechanism is arranged above the air cooling mechanism, and the power-off mechanism is arranged on one side of the water cooling mechanism.

Preferably, the retraction mechanism comprises a square cover, a sliding chute is fixed inside the square cover, a rack is arranged in the sliding chute, the rack is connected with the sliding chute in a sliding manner, a first ratchet wheel is movably connected to the inner side of the square cover, the first ratchet wheel is fixedly connected with a first motor, the first motor is fixed to the outer part of the square cover, and the first ratchet wheel is meshed with the rack;

preferably, air-cooled mechanism includes the opening, the opening sets up in the frame bottom, one side of frame is provided with the ventilation net, fixedly connected with support bar on the opening, it is connected with the runner to rotate on the support bar, runner and flabellum fixed connection, opening below fixedly connected with dust cover, the flabellum sets up in the dust cover, runner and fan belt rotate to be connected, air-cooled belt one end with the runner rotates to be connected, and the other end rotates with the pivot to be connected, the pivot with second motor fixed connection.

Preferably, the water cooling mechanism comprises an imaging system, a waterproof layer is wrapped on the periphery of the imaging system, the imaging system is arranged in a water storage tank, a drain pipe is arranged on one side of the water storage tank, a copper pipe is wrapped around the imaging system and surrounds a power supply system, a first temperature sensor is fixed on the power supply system and is communicated with a first controller, the first controller is communicated with a first motor, the copper pipe is communicated with a circulator, the circulator comprises a shell, a turbine is arranged in the shell and is fixedly connected with a rotating shaft, the rotating shaft is fixedly connected with an auxiliary ratchet wheel, the auxiliary ratchet wheel is meshed with a positive ratchet wheel, the positive ratchet wheel is fixedly connected with a second motor, a circulating water pipe is communicated with one side of the circulator, and the other end of the circulating water pipe is communicated with the water storage tank, the water storage tank is fixedly connected to the outside of the square cover, and cooling fins are arranged on the water storage tank.

Preferably, the outage mechanism includes power off switch, power off switch and switch UNICOM, power off switch and T shape pole are supporting, T shape pole fixed connection be in the spout, one side of power off switch is provided with the second temperature-sensing ware, second temperature-sensing ware and second controller UNICOM, the second controller UNICOM arrives switch.

The invention has the beneficial effects that:

(1) according to the multimedia teaching projector, in the retracting mechanism, after a user uses the projector, the retracting mechanism can automatically retract the projector upwards slowly and retract the projector into the square cover, so that the projector can be prevented from accumulating dust for a long time, and the projector can be prevented from being wetted by water to cause damage.

(2) According to the multimedia teaching projector, in the air cooling mechanism, the second motor drives the fan blades to rotate, hot air in the projector is blown to the outside, then cold air in the outside is sucked into the projector, the temperature in the projector is reduced through continuous cold and hot air circulation, and water in copper pipes distributed below the fan blades can be cooled.

(3) According to the multimedia teaching projector, in the water cooling mechanism, the imaging system and the power supply system are main heating sources of the projector, flowing water in a copper pipe distributed on the surface of the projector can continuously absorb heat, and then the air cooling mechanism is used for cooling the water in the copper pipe and cooling a water storage tank and a cooling fin, so that the temperature in the projector is controlled.

(4) According to the multimedia teaching projector, in the power-off mechanism, when the temperature is too high, the air cooling mechanism and the water cooling mechanism cannot control the temperature, and the power supply can be automatically cut off by the power-off mechanism, so that the projector stops working, and parts are prevented from being damaged due to the too high temperature.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic side view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of an air cooling mechanism and a water cooling mechanism;

FIG. 4 is a schematic structural view of an air cooling mechanism;

FIG. 5 is a schematic view of a frame and ventilation net connection;

FIG. 6 is a schematic view of a retraction mechanism and frame attachment configuration;

FIG. 7 is a schematic view of the housing, turbine and rotating shaft connection;

FIG. 8 is a schematic view of the connection structure at A in FIG. 3;

in the figure: 1. a retraction mechanism; 11. a square cover; 12. a chute; 13. a rack; 14. a first ratchet wheel; 15. a first motor; 2. an air cooling mechanism; 21. an opening; 22. a fan blade; 23. a supporting strip; 24. a rotating wheel; 25. a fan belt; 26. a dust cover; 27. a frame; 28. a ventilation net; 29. an air-cooled belt; 210. a second motor; 211. a rotating shaft; 3. a water cooling mechanism; 31. an imaging system; 32. a copper pipe; 33. a power supply system; 34. a first temperature sensor; 35. a first controller; 36. a circulator; 361. a housing; 362. a turbine; 363. a rotating shaft; 37. a secondary ratchet; 38. a positive ratchet wheel; 39. a circulating water pipe; 310. a water storage tank; 311. a heat sink; 312. a water storage tank; 313. a drain pipe; 314. a waterproof layer; 4. a power-off mechanism; 41. a power-off switch; 42. a second temperature sensor; 43. a second controller; 44. t-shaped rods.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-8, the multimedia teaching projector according to the present invention includes a retraction mechanism 1, an air cooling mechanism 2, a water cooling mechanism 3 and a power-off mechanism 4; an air cooling mechanism 2 is arranged below the retraction mechanism 1, the water cooling mechanism 3 is arranged above the air cooling mechanism 2, and the power-off mechanism 4 is arranged on one side of the water cooling mechanism 3; when not using, pack up mechanism 1 and upwards stimulate whole projecting apparatus, receive in the square cover 11, can avoid the dust to damage the projecting apparatus, air cooling mechanism 2 triggers switch when the projecting apparatus temperature is higher and works, air cooling mechanism blows the outside with the hot-air in the projecting apparatus, inhales inside with the air that outside temperature reduces, forms cold and hot air's in turn, moreover air cooling mechanism 2 can give when exchanging cold and hot air water cooling mechanism 3 cools down, the heat is taken away through cold water to water cooling mechanism 3, automatic cutout power when projecting apparatus high temperature again can be given to outage mechanism 4, lets projecting apparatus stop work, prevents that the high temperature from making the projecting apparatus damage or taking place danger.

Specifically, the retraction mechanism 1 comprises a square cover 11, a sliding chute 12 is fixed inside the square cover 11, a rack 13 is arranged in the sliding chute 12, the rack 13 is in sliding connection with the sliding chute 12, a first ratchet wheel 14 is movably connected to the inner side of the square cover 11, the first ratchet wheel 14 is fixedly connected with a first motor 15, the first motor 15 is fixed outside the square cover 11, and the first ratchet wheel 14 is meshed with the rack 13; when the projector is used, the first motor 15 works, the first ratchet wheel 14 is driven to rotate by the rotating shaft of the first motor 15, because the first ratchet wheel 14 is meshed with the rack 13, when the first ratchet wheel 14 rotates, the rack 13 slides upwards in the sliding groove 12 and drives the whole projector to slide upwards, and when the whole projector slides into the square cover 11, the first motor 15 stops working.

Specifically, the air cooling mechanism 2 includes an opening 21, the opening 21 is disposed at the bottom of a frame 27, a ventilation net 28 is disposed on one side of the frame 27, a supporting bar 23 is fixedly connected to the opening 21, a rotating wheel 24 is rotatably connected to the supporting bar 23, the rotating wheel 24 is fixedly connected to a fan blade 22, a dust cover 26 is fixedly connected to the lower side of the opening 21, the fan blade 22 is disposed in the dust cover 26, the rotating wheel 24 is rotatably connected to a fan belt 25, one end of an air cooling belt 29 is rotatably connected to the rotating wheel 24, the other end of the air cooling belt is rotatably connected to a rotating shaft 211, and the rotating shaft 211 is fixedly connected to the second motor 210; when the second motor 210 work is rotated, the pivot 211 is followed and is rotated, the pivot 211 drives air-cooled belt 29 rotates, air-cooled belt 29 drives runner 24 rotates, runner 24 drives fan belt 25 and rotates, fan belt 25 drives another runner 24 and rotates, runner 24 drives flabellum 22 rotates, flabellum 22 rotates will hot-air follow in the frame 27 the opening 21 is located to discharge, then inhales outside cold air in the frame 27, can reduce with this circulation 27 in the frame temperature.

Specifically, the water cooling mechanism includes an imaging system 31, a waterproof layer 314 wraps the periphery of the imaging system 31, the imaging system 31 is arranged in a water storage tank 312, a water discharge pipe 313 is arranged on one side of the water storage tank 312, a copper pipe 32 is wrapped around the imaging system 31, the copper pipe 32 is wrapped around a power supply system 33, a first temperature sensor 34 is fixed on the power supply system 33, the first temperature sensor 34 is communicated with a first controller 35, the first controller 35 is communicated with a first motor 210, the copper pipe 32 is communicated with a circulator 36, the circulator 36 includes a housing 361, a turbine 362 is arranged inside the housing 361, the turbine 362 is fixedly connected with a rotating shaft 363, the rotating shaft 363 is fixedly connected with an auxiliary ratchet wheel 37, the auxiliary ratchet wheel 37 is engaged with a positive ratchet wheel 38, the positive ratchet wheel 38 is fixedly connected with a second motor 210, one side of the circulator 36 is communicated with a circulating water pipe 39, the other end of the circulating water pipe 39 is communicated with a water storage tank 310, the water storage tank 310 is fixedly connected to the outside of the square cover 11, and a radiating fin 311 is arranged on the water storage tank 310; when the temperature is too high, the first temperature sensor 34 senses that the temperature is too high, and transmits information to the first controller 35, the first controller 35 starts the second motor 210 to rotate, the second motor 210 rotates to drive the positive ratchet 38 to rotate, because the positive ratchet 38 is meshed with the auxiliary ratchet 37, the auxiliary ratchet 37 rotates along with the rotation, the auxiliary ratchet 37 drives the rotation shaft 363 and the turbine 362 to rotate, at this time, the circulator 36 works to circulate hot water in the copper pipe 32 to the water storage tank 310, cold water in the copper pipe 32 takes away heat of a heating element, then the cold water passes through the lower part of the fan blade 22, wind blown out by the fan blade 22 can cool water in the copper pipe 32 for the first time, then the water in the copper pipe 32 enters the water storage tank 310 through the circulating water pipe 39, and the radiating fins 311 on the water storage tank 310 cool water for the second time, if the circulating water pipe 39 is aged and broken, the waterproof layer 314 prevents the water from entering the electric components, and the water storage tank 312 collects the leaked water and then discharges the water from the water discharge pipe 313, thereby preventing the danger caused by the leakage of water and the conduction of electricity.

Specifically, the power-off mechanism 4 includes a power-off switch 41, the power-off switch 41 is communicated with a power switch, the power-off switch 41 is matched with a T-shaped rod 44, the T-shaped rod 44 is fixedly connected in the chute 12, a second temperature sensor 42 is arranged on one side of the power-off switch 41, the second temperature sensor 42 is communicated with a second controller 43, and the second controller 43 is communicated with the power switch; when the temperature exceeds a normal value, the second temperature sensor 42 transmits a signal to the second controller 43, the second controller 43 cuts off the power supply to stop the projector to prevent the projector from damaging internal parts due to overhigh temperature, and after the projector is used, the T-shaped rod 44 presses the power-off switch 41 when the projector is pulled upwards by the retraction mechanism 1, so that the projector is automatically closed when retracted.

When the invention is used, the first motor 15 works, the rotating shaft of the first motor 15 drives the first ratchet wheel 14 to rotate, because the first ratchet wheel 14 is meshed with the rack 13, when the first ratchet wheel 14 rotates, the rack 13 slides upwards in the chute 12 and drives the whole projector to slide upwards, when the whole projector slides into the square cover 11, the T-shaped rod 44 extrudes the power-off switch 41, the projector is automatically closed, the first motor 15 stops working, when the second motor 210 rotates, the rotating shaft 211 rotates along with the rotation, the rotating shaft 211 drives the air-cooling belt 29 to rotate, the air-cooling belt 29 drives the rotating wheel 24 to rotate, the rotating wheel 24 drives the fan belt 25 to rotate, the fan belt 25 drives the other rotating wheel 24 to rotate, the rotating wheel 24 drives the fan blade 22 to rotate, hot air in the frame 27 is discharged from the opening 21, and then external cold air is sucked into the frame 27, when the temperature is too high, the first temperature sensor 34 senses that the temperature is too high, the information is transmitted to the first controller 35, the first controller 35 starts the second motor 210 to rotate, the second motor 210 rotates to drive the positive ratchet 38 to rotate, the auxiliary ratchet 37 rotates along with the positive ratchet 38 and the auxiliary ratchet 37 because the positive ratchet 38 is meshed with the auxiliary ratchet 37, the auxiliary ratchet 37 drives the rotating shaft 363 and the turbine 362 to rotate, the circulator 36 works at the moment, hot water in the copper pipe 32 circulates into the water storage tank 310, cold water in the copper pipe 32 takes heat of a heating element away, then the cold water passes below the fan blade 22, wind blown by the fan blade 22 can firstly cool water in the copper pipe 32, then the water in the copper pipe 32 enters the water storage tank 310 through the circulating water pipe 39, the cooling fins 311 on the water storage tank 310 cool the water for the second time, if the circulating water pipe 39 is aged and broken, the waterproof layer 314 can prevent water from entering electrical components, the water storage tank 312 can collect leaked water and then discharge the water from the water discharge pipe 313, so that danger caused by water leakage and electricity conduction is prevented, when the temperature exceeds a normal value, the second temperature sensor 42 transmits a signal to the second controller 43, the second controller 43 cuts off the power supply, the projector stops working, and internal parts are prevented from being damaged due to overhigh temperature.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A multimedia teaching projector, characterized in that: comprising a retracting mechanism (1), an air-cooling mechanism (2), a water-cooling mechanism (3) and a power-off mechanism (4); below the retracting mechanism (1) An air-cooling mechanism (2) is provided, the water-cooling mechanism (3) is provided above the air-cooling mechanism (2), and the power-off mechanism (4) is provided on one side of the water-cooling mechanism (3);

The retracting mechanism (1) comprises a square cover (11), a chute (12) is fixed inside the square cover (11), a rack (13) is arranged in the chute (12), and the teeth The bar (13) is slidably connected to the chute (12), the square cover (11) is internally movably connected with a first ratchet (14), and the first ratchet (14) and the first motor (15) are fixed connected, the first motor (15) is fixed on the outside of the square cover (11), and the first ratchet (14) is engaged with the rack (13).

2. A multimedia teaching projector according to claim (1), characterized in that: the air cooling mechanism (2) comprises an opening (21), and the opening (21) is arranged at the bottom of the frame (27) One side of the frame (27) is provided with a ventilation net (28), a support bar (23) is fixedly connected to the opening (21), and a runner (24) is rotatably connected to the support bar (23). , the runner (24) and the fan blade (22) are fixedly connected, a dust cover (26) is fixedly connected below the opening (21), and the fan blade (22) is arranged on the dust cover (26) )Inside;

The runner (24) is rotatably connected with the fan belt (25), one end of the air-cooled belt (29) is rotatably connected with the runner (24), and the other end is rotatably connected with the rotating shaft (211), and the rotating shaft (211) It is fixedly connected with the second motor (210).

3. A kind of multimedia teaching projector according to claim (2), characterized in that: the water cooling mechanism comprises an imaging system (31), and the imaging system (31) is surrounded by a waterproof layer (314), The imaging system (31) is in a water storage tank (312), a drain pipe (313) is provided on one side of the water storage tank (312), a copper pipe (32) is surrounded around the imaging system (31), and the A copper pipe (32) surrounds a power supply system (33), a first temperature sensor (34) is fixed on the power supply system (33), and the first temperature sensor (34) is communicated with a first controller (35) , the first controller (35) is in communication with the first motor (210);

The copper pipe (32) is communicated with the circulator (36), and the circulator (36) includes a casing (361), and a turbine (362) is arranged inside the casing (361), and the turbine (362) and The rotating shaft (363) is fixedly connected, the rotating shaft (363) is fixedly connected with the secondary ratchet (37), the secondary ratchet (37) is engaged with the positive ratchet (38), and the positive ratchet (38) is connected with the second ratchet (38). The motor (210) is fixedly connected;

One side of the circulator (36) is connected with a circulating water pipe (39), and the other end of the circulating water pipe (39) is connected to a water storage tank (310), and the water storage tank (310) is fixedly connected to the water storage tank (310). Outside the square cover (11), cooling fins (311) are arranged on the water storage tank (310).

4. A multimedia teaching projector according to claim (3), characterized in that: the power-off mechanism (4) comprises a power-off switch (41), the power-off switch (41) and a power switch Unicom, the power-off switch (41) is matched with a T-shaped rod (44), the T-shaped rod (44) is fixedly connected in the chute (12), and one of the power-off switch (41) The side is provided with a second temperature sensor (42), the second temperature sensor (42) is communicated with a second controller (43), and the second controller (43) is communicated with a power switch.