Improved air duct structure applied to projector

Abstract

The improved air duct structure is characterized in that the improved air duct structure comprises a housing, an optical machine, a radiator and an air duct frame, the housing comprises a front cover with an air outlet hole net and a rear cover with an air inlet hole net, the rear side of the optical machine is provided with a heat exchange part, the radiator is arranged at the bottom of the front side of the optical machine, and the air duct frame is arranged in the heat exchange part. An air outlet opening is formed in the front side of the radiator, a fan is arranged in the radiator, an air inlet groove is formed in one side of the radiator, and the air duct frame is detachably connected to the air outlet hole net. According to the projector, the air duct frame is arranged between the air outlet hole net and the radiator, air can be made to circulate into the radiator in a concentrated mode in the process that the fan drives the air to circulate, a stable air duct is formed between the air inlet hole net and the air outlet hole net, the heat dissipation efficiency is improved, and the service life of the projector is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the field of projectors, in particular to an improved air duct structure applied to projectors. Background Art

[0002] A projector, also known as a projector, is a device that can project images or videos onto a screen.

[0003] The projector will generate a lot of heat during operation. In actual applications, a fan is generally used to drive air circulation to remove the heat. Most projectors are only equipped with one air inlet and outlet. During the air circulation process, it is impossible to remove as much heat as possible, and the heat dissipation effect is poor, which greatly reduces the service life of the projector. Utility Model Content

[0004] The purpose of the utility model is to provide an improved air duct structure applied to a projector to solve the above problems.

[0005] According to one aspect of the utility model, there is provided an improved air duct structure applied to a projector, characterized in that it comprises: a shell, an optical machine, a heat sink and an air duct frame, the optical machine is accommodated in the shell, the shell comprises a front cover with an air outlet mesh and a rear cover with an air inlet mesh, a heat exchange portion is arranged on the rear side of the optical machine, the heat sink is arranged at the front bottom of the optical machine, an air outlet opening is arranged on the front side of the heat sink, a fan is arranged in the heat sink, an air inlet slot is arranged on one side of the heat sink, the air duct frame is detachably connected to the inner side of the air outlet mesh, the air duct frame is connected to the air outlet mesh and the air outlet opening, and air driven by the fan passes through the air inlet mesh, the heat exchange portion, the optical machine, the air inlet slot, the heat sink, the air duct frame and the air outlet mesh in sequence.

[0006] In some embodiments, limiting columns are respectively provided at both ends of the inner side of the air outlet mesh, and limiting grooves for inserting the limiting columns are respectively provided on both sides of the top of the air duct frame.

[0007] In some embodiments, the air outlet opening is in a square structure, and a slot matching the air outlet opening is disposed on the inner side of the air duct frame.

[0008] In some embodiments, the radiator includes an inner shell and a plurality of heat dissipating copper tubes, the inner shell having a cavity, the air outlet opening being arranged on the front side of the inner shell, the air inlet slot being arranged on one side of the inner shell, a portion of the plurality of heat dissipating copper tubes being passed through the cavity, and another portion being passed through the interior of the optical machine, and the fan being arranged in the cavity.

[0009] In some embodiments, the air outlet opening is provided with a grille.

[0010] In some embodiments, the air inlet hole network has a plurality of air inlets; the air outlet hole network has a plurality of air outlets.

[0011] In some embodiments, the heat exchange part is an iron plate, the iron plate is arranged closely against the optical machine, and a plurality of heat dissipation protrusions are arranged on the outer side of the iron plate.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] The present application sets an air duct frame between the air outlet mesh and the radiator, so that the air can be concentrated and circulated into the radiator during the process of air circulation driven by the fan, and a stable air duct is formed between the air inlet mesh and the air outlet mesh, thereby improving the heat dissipation efficiency and effectively extending the service life of the projector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model;

[0015] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the optical engine and the heat sink of the utility model;

[0017] Figure 4 It is a rear-view stereoscopic structural schematic diagram of the optical machine of the utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure between the front cover and the air duct frame of the utility model;

[0019] Figure 6 It is a three-dimensional structural schematic diagram of the front cover of the utility model;

[0020] Figure 7 It is a three-dimensional structural schematic diagram of the air duct frame of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] refer to Figures 1 to 7The present application provides an improved air duct structure applied to a projector, characterized in that it includes: a shell, an optical machine 1, a heat sink and an air duct frame 2, the optical machine 1 is accommodated in the shell, the shell includes a front cover 4 with an air outlet mesh 3 and a rear cover 6 with an air inlet mesh 5, a heat exchange part 7 is arranged on the rear side of the optical machine 1, the heat sink is arranged at the front bottom of the optical machine 1, an air outlet opening 8 is arranged on the front side of the heat sink, a fan is arranged in the radiator, an air inlet slot 9 is arranged on one side of the radiator, the air duct frame 2 is detachably connected to the inner side of the air outlet mesh 3, the air duct frame 2 is connected to the air outlet mesh 3 and the air outlet opening 8, and the air is driven by the fan to pass through the air inlet mesh 5, the heat exchange part 7, the optical machine 1, the air inlet slot 9, the heat sink, the air duct frame 2 and the air outlet mesh 3 in sequence.

[0023] In some embodiments, limiting columns 10 are respectively provided at both ends of the inner side of the air outlet mesh 3, and limiting grooves 11 for inserting the limiting columns 10 are respectively provided on both sides of the top of the air duct frame 2. When installing the air duct frame 2, the air duct frame 2 only needs to be put on the limiting columns 10, which is convenient and quick to load and unload.

[0024] In some embodiments, the air outlet opening 8 is a square structure, and a slot 12 matching the air outlet opening 8 is provided on the inner side of the air duct frame 2 to prevent air from overflowing and ensure that all air is discharged to the air outlet mesh 3 after being sucked into the radiator.

[0025] In some embodiments, the radiator includes an inner shell and a plurality of heat dissipation copper tubes 13, the inner shell has a cavity, the air outlet opening 8 is arranged on the front side of the inner shell, the air inlet groove 9 is arranged on one side of the inner shell, a part of the plurality of heat dissipation copper tubes 13 is passed through the cavity, and another part is passed through the interior of the optical machine 1, the fan is arranged in the cavity, and its heat dissipation performance is enhanced by the heat dissipation copper tubes 13.

[0026] In some embodiments, the air outlet opening 8 is provided with a grille to prevent dust and foreign matter from entering the radiator and affecting its heat dissipation performance.

[0027] In some embodiments, the air inlet hole mesh 5 has a plurality of air inlets; the air outlet hole mesh 3 has a plurality of air outlets.

[0028] In some embodiments, the heat exchange part 7 is an iron plate, which is arranged close to the optical machine 1. A plurality of heat dissipation protrusions are arranged on the outer side of the iron plate. When the optical machine 1 works normally, the back side will be very hot and needs to be cooled. The air can take away the heat when passing through the iron plate.

[0029] The heat dissipation principle of the present application is: when the projector is working, the light machine 1 generates a large amount of heat, the fan starts, and air is sucked in from the air inlet mesh 5. The sucked air first contacts the heat exchange part 7 to reduce the temperature of the heat exchange part 7, and then enters the radiator through the air inlet slot 9. The heat dissipation copper tube 13 in the radiator exchanges heat with the heat dissipation copper tube 13 in the light machine 1, and the heat is radiated into the sucked air. The air that absorbs the heat is discharged from the air outlet mesh 3 through the air duct frame 2.

[0030] The present application sets an air duct frame 2 between the air outlet hole mesh 3 and the radiator. In the process of air circulation driven by the fan, the air can be concentrated and circulated into the radiator. A stable air duct is formed between the air inlet hole mesh 5 and the air outlet hole mesh 3, thereby improving the heat dissipation efficiency and effectively extending the service life of the projector.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An improved air duct structure for a projector, characterized in that: include: A shell, an optical engine, a heat sink and an air duct frame, wherein the optical engine is accommodated in the shell, the shell includes a front cover with an air outlet mesh and a rear cover with an air inlet mesh, a heat exchange portion is arranged on the rear side of the optical engine, the heat sink is arranged at the front bottom of the optical engine, an air outlet opening is arranged on the front side of the heat sink, a fan is arranged in the heat sink, an air inlet slot is arranged on one side of the heat sink, the air duct frame is detachably connected to the inner side of the air outlet mesh, the air duct frame is connected to the air outlet mesh and the air outlet opening, and air driven by the fan passes through the air inlet mesh, the heat exchange portion, the optical engine, the air inlet slot, the heat sink, the air duct frame and the air outlet mesh in sequence.

2. The improved air duct structure for a projector according to claim 1, characterized in that: Limiting columns are respectively arranged at both ends of the inner side of the air outlet mesh, and limiting grooves for inserting the limiting columns are respectively arranged at both sides of the top of the air duct frame.

3. The improved air duct structure for a projector according to claim 1, characterized in that: The air outlet opening is in a square structure, and a slot matching the air outlet opening is arranged on the inner side of the air duct frame.

4. The improved air duct structure for a projector according to claim 1, characterized in that: The radiator includes an inner shell and a plurality of heat-dissipating copper tubes, the inner shell having a cavity, the air outlet opening being arranged on the front side of the inner shell, the air inlet slot being arranged on one side of the inner shell, a part of the plurality of heat-dissipating copper tubes being passed through the cavity, and another part being passed through the interior of the optical machine, and the fan being arranged in the cavity.

5. The improved air duct structure for a projector according to claim 1, characterized in that: The air outlet opening is provided with a grille net.

6. The improved air duct structure for a projector according to claim 1, characterized in that: The air inlet hole network has a plurality of air inlets; the air outlet hole network has a plurality of air outlets.

7. The improved air duct structure for a projector according to claim 1, characterized in that: The heat exchange part is an iron plate, which is arranged close to the optical machine, and a plurality of heat dissipation protrusions are arranged on the outer side of the iron plate.

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