CN212115543U

CN212115543U - Large DLP rear projection screen with high heat dissipation efficiency

Info

Publication number: CN212115543U
Application number: CN202021217336.0U
Authority: CN
Inventors: 徐国平
Original assignee: Chengdu Borui Technology Co ltd
Current assignee: Chengdu Borui Technology Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-12-08
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a DLP rear-projection large screen with high heat dissipation efficiency, which comprises a display screen, a case fixedly connected with the rear side of the display screen, a hanging column fixedly connected with the rear side of the case, a rectangular box fixedly connected with the rear side of the case close to the middle part of the case, a driving machine fixedly installed on the surface of the inner wall of the rectangular box, wherein the driving machine is connected with the display screen through signals, a rotating rod is fixedly connected with the output end of the driving machine, one end of the rotating rod far away from the driving machine penetrates into the case and is fixedly connected with a rectangular sleeve, the utility model realizes that the display screen can effectively dissipate the heat in the case, the gas in the case can exchange heat with the external gas quickly and effectively through the cooperation of the structures, improves the heat dissipation efficiency of the display screen, and reduces the condition that the parts in the device keep higher temperature for a, the service life of the internal parts of the display screen is indirectly prolonged.

Description

Large DLP rear projection screen with high heat dissipation efficiency

Technical Field

The utility model relates to a display screen equipment technical field specifically is a big screen of heat dissipation efficient DLP rear-projection.

Background

DLP is an abbreviation of English Digital Light processor, and is translated into a Digital Light processor, which is a new projection technology, so that after having the capability of capturing, receiving and storing Digital information, the Digital Light processor finally realizes Digital information display, and the Digital Light processor adopts a DMD Digital micro reflector as a Light valve imaging device, adopts the Digital Light processing technology to modulate video signals, drives a DMD Light path system, and obtains a large-screen image through a projection lens, because the existing display screen has lower heat dissipation effect, the display screen can not effectively dissipate heat inside a case, the gas inside the case can not effectively exchange heat with external gas, the heat dissipation efficiency of the display screen is reduced, the internal parts of the device can keep higher temperature for a long time, the service life of the device is not prolonged, the service life of the internal parts of the display screen is indirectly reduced, and certain adverse effect is brought to practical use, improvements are therefore needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a big screen of heat dissipation efficient DLP rear-projection, possess the radiating effect who has improved the display screen, the display screen can comparatively effectually distribute away the heat of quick-witted incasement portion, quick-witted incasement portion gas can carry out the heat exchange with the outside gas fast effectually, the radiating efficiency of display screen is improved, the condition that the device internals keeps higher temperature for a long time has been reduced, the indirect life who has improved the display screen internals, the user has brought the facility, certain favourable influence has been brought for the in-service use, the problem of proposing in the above background art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: the DLP rear-projection large screen with high heat dissipation efficiency comprises a display screen, wherein a case is fixedly connected to the rear side of the display screen, a hanging column is fixedly connected to the rear side of the case, a rectangular box is fixedly connected to the rear side of the case, which is close to the middle of the case, a driving machine is fixedly mounted on the surface of the inner wall of the rectangular box, the driving machine is in signal connection with the display screen, a rotating rod is fixedly connected to the output end of the driving machine, one end, away from the driving machine, of the rotating rod penetrates into the case and is fixedly connected with a rectangular sleeve, fixed blocks are fixedly connected to the two sides of the inner wall of the case, sliding assemblies are fixedly connected to the opposite sides of the two fixed blocks, a round rod is fixedly connected to the bottom of each sliding assembly, a round sleeve is slidably connected to the surface of the round rod, a limiting plate is fixedly connected to the bottom end of the round rod, the front end of dwang passes through the rear side swivelling joint of bearing and circle cover, telescopic spring has been cup jointed on the surface of T type pole, the equal fixedly connected with fan in front side of rectangle cover and the front side of circle cover, fan and driving machine pass through signal connection.

Preferably, the sliding assembly comprises a sliding rod, the sliding rod is fixedly connected to the opposite sides of the two fixed blocks, a sliding sleeve is connected to the surface of the sliding rod in a sliding mode, and the bottom of the sliding sleeve is fixedly connected with the top end of the round rod.

Preferably, the middle part of the chassis, which is close to the inner wall of the chassis, is fixedly connected with a radiating fin, and the protruding end of the radiating fin is abutted against a part on the rear side of the display screen.

Preferably, the rear side of the heat dissipation fins is fixedly connected with a heat conduction plate, and the front side of the heat conduction plate completely covers the rear side of the heat dissipation fins.

Preferably, the fans on the front side of the rectangular sleeve are arranged in an inclined manner, and the inclined directions of the fans on the front side of the rectangular sleeve are sequentially reduced from left to right.

Preferably, the bottom of the inner wall of the case is provided with heat dissipation holes, the heat dissipation holes are uniformly distributed on the bottom of the inner wall of the case, and the top of each heat dissipation hole is fixedly connected with a dustproof gauze.

Compared with the prior art, the beneficial effects of the utility model are that: when a user opens the display screen, the display screen can transmit signals to the driving machine, the driving machine can be started automatically, the driving machine can be started to drive the rotating rod to rotate, the rotating rod can drive the rectangular sleeve to rotate, the movement track of the T-shaped rod is limited through the arrangement of the telescopic spring, the rectangular sleeve can drive the T-shaped rod in the rectangular sleeve to rotate, the T-shaped rod can drive the round sleeve to slide up and down on the surface of the round rod through the rotation of the rotating rod, when the round sleeve slides to the position of the limiting plate, the round rod can be driven to move left and right through the continuous rotation of the slide rod and the round sleeve, the round rod can drive the slide sleeve to move left and right through the left and right movement of the round rod, meanwhile, the fan can be started to perform blowing work, the fan on the front side of the rectangular sleeve is obliquely arranged, the blowing area in the case is increased, and the, the radiating speed of the inside of the case is improved, the radiating area of the inside of the case is increased, the condition that dust is carried out on the inside of the case is reduced, convenience is brought to a user, the working efficiency of the user is improved, and certain beneficial influence is brought to practical use.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top cross-sectional view of the present invention;

fig. 3 is a front sectional view of the present invention.

In the figure: 1-display screen, 2-case, 3-hanging column, 4-rectangular case, 5-driving machine, 6-rotating rod, 7-rectangular sleeve, 8-fixed block, 9-round rod, 10-round sleeve, 11-limit plate, 12-T-shaped rod, 13-rotating rod, 14-expansion spring, 15-fan, 16-sliding rod, 17-sliding sleeve, 18-heat dissipation fin, 19-heat conduction plate, 20-heat dissipation hole, 21-dustproof gauze.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a DLP rear projection large screen with high heat dissipation efficiency comprises a display screen 1, wherein the rear side of the display screen 1 is fixedly connected with a case 2, and the rear side of the case 2 is fixedly connected with a hanging column 3.

Furthermore, the middle part of the chassis 2 close to the inner wall thereof is fixedly connected with a heat radiation fin 18, and the protruding end of the heat radiation fin 18 is abutted against the part at the rear side of the display screen 1, so that the display screen 1 can rapidly radiate the generated heat through the arrangement of the heat radiation fin 18.

Furthermore, the heat-conducting plate 19 is fixedly connected to the rear side of the heat-dissipating fins 18, and the front side of the heat-conducting plate 19 completely covers the rear side of the heat-dissipating fins 18, so that the time for the heat-dissipating fins 18 to store heat is reduced and the heat-dissipating speed inside the case 2 is increased by the arrangement of the heat-conducting plate 19.

Further, louvre 20 has been seted up to the bottom of machine case 2 inner wall, through louvre 20's setting, has strengthened the inside radiating area of machine case 2, louvre 20 evenly distributed is on the bottom of machine case 2 inner wall, and louvre 20's top fixedly connected with dustproof gauze 21 has reduced the dust and has carried out the condition of machine case 2 inside through dustproof gauze 21's setting.

The rear side of the case 2 close to the middle part thereof is fixedly connected with a rectangular case 4, the surface of the inner wall of the rectangular case 4 is fixedly provided with a driving machine 5, the driving machine 5 is a structure that a driving motor and a speed reducer are integrally arranged, through the setting of reduction gear, the rotational speed is too high when having avoided driving motor to begin to rotate, driving machine 5 passes through signal connection with display screen 1, display screen 1 can give driving machine 5 with signal transmission, driving machine 5 can start by oneself, the output fixedly connected with bull stick 6 of driving machine 5, driving machine 5 starts and can drive bull stick 6 and rotate, the inside and the fixedly connected with rectangle cover 7 of quick-witted case 2 are worn into to bull stick 6 one end of keeping away from driving machine 5, bull stick 6 rotates and can drive rectangle cover 7 and rotate, the equal fixedly connected with fixed block 8 in both sides of 2 inner walls of machine case, the opposite side fixedly connected with slip subassembly of two fixed blocks 8, the bottom fixedly connected with round bar 9 of slip subassembly.

Further, the sliding assembly comprises a sliding rod 16, the sliding rod 16 is fixedly connected to the opposite sides of the two fixing blocks 8, a sliding sleeve 17 is connected to the surface of the sliding rod 16 in a sliding mode, the round rod 9 moves left and right to drive the sliding sleeve 17 to move left and right, and the bottom of the sliding sleeve 17 is fixedly connected with the top end of the round rod 9.

The surface of the round rod 9 is connected with a round sleeve 10 in a sliding manner, the bottom end of the round rod 9 is fixedly connected with a limiting plate 11, when the round sleeve 10 slides to the limiting plate 11, the T-shaped rod 12 continuously rotates to drive the round rod 9 to move left and right through the arrangement of a sliding rod 16 and the round sleeve 10, the inner wall of the rectangular sleeve 7 is connected with a T-shaped rod 12 in a sliding manner, the surface of the T-shaped rod 12 close to the left side of the T-shaped rod 12 is connected with a rotating rod 13 through a bearing in a rotating manner, the T-shaped rod 12 rotates to drive the round sleeve 10 to slide up and down on the surface of the round rod 9 through the arrangement of the rotating rod 13, the front end of the rotating rod 13 is connected with the rear side of the round sleeve 10 through the bearing in a rotating manner, the surface of the T-shaped rod 12 is sleeved with a telescopic spring 14, the movement track of the T-shaped rod 12 is limited through the arrangement of the telescopic spring 14, the rectangular sleeve 7, the fan 15 is connected to the drive 5 by a signal.

Further, the fans 15 on the front side of the rectangular sleeve 7 are obliquely arranged, the oblique directions of the fans 15 on the front side of the rectangular sleeve 7 are sequentially reduced from left to right, and the fans 15 on the front side of the rectangular sleeve 7 are obliquely arranged, so that the blowing area inside the case 2 is increased.

The working principle is as follows: when the DLP rear projection large screen with high heat dissipation efficiency is used, when a user opens the display screen 1, the display screen 1 transmits signals to the driving machine 5, the driving machine 5 can be started by itself, the driving machine 5 can drive the rotating rod 6 to rotate, the rotating rod 6 can drive the rectangular sleeve 7 to rotate, the movement track of the T-shaped rod 12 is limited through the arrangement of the telescopic spring 14, the rectangular sleeve 7 can drive the T-shaped rod 12 therein to rotate, the T-shaped rod 12 can drive the round sleeve 10 to slide up and down on the surface of the round rod 9 through the arrangement of the rotating rod 13, when the round sleeve 10 slides to the limiting plate 11, through the arrangement of the sliding rod 16 and the round sleeve 10, the T-shaped rod 12 can drive the round rod 9 to move left and right, the round rod 9 can drive the sliding sleeve 17 to move left and right, meanwhile, the fan 15 can be started to blow, the fan 15 on the front side of the rectangular sleeve 7 is arranged obliquely, the inside area of blowing of machine case 2 has been increased, setting through heat radiation fins 18, make display screen 1 can be comparatively rapid distribute away the heat that will produce, setting through heat-conducting plate 19, the time that heat radiation fins 18 stored the heat has been reduced, the radiating rate of machine case 2 inside has been improved, setting through louvre 20, the inside radiating area of machine case 2 has been strengthened, setting through dustproof gauze 21, the condition that the dust got into machine case 2 inside has been reduced, machine case 2 inside gas can carry out the heat exchange with outside gas fast effectual, the condition that the device internals keeps the higher temperature for a long time has been reduced, indirect improvement the life of display screen 1 internals, bring the facility for the user, user's work efficiency has been improved, certain favourable influence has been brought for the in-service use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a big screen of heat dissipation efficient DLP rear projection, includes display screen (1), rear side fixedly connected with machine case (2) of display screen (1), rear side fixedly connected with hanging post (3) of machine case (2), its characterized in that: the rear side of the case (2) close to the middle of the case is fixedly connected with a rectangular case (4), the surface of the inner wall of the rectangular case (4) is fixedly provided with a driving machine (5), the driving machine (5) is connected with a display screen (1) through a signal, the output end of the driving machine (5) is fixedly connected with a rotating rod (6), one end of the rotating rod (6) far away from the driving machine (5) penetrates into the case (2) and is fixedly connected with a rectangular sleeve (7), both sides of the inner wall of the case (2) are fixedly connected with fixed blocks (8), the opposite sides of the two fixed blocks (8) are fixedly connected with sliding components, the bottom of each sliding component is fixedly connected with a round rod (9), the surface of the round rod (9) is slidably connected with a round sleeve (10), the bottom end of the round rod (9) is fixedly connected with a limiting plate (11), and the inner wall of the rectangular sleeve, be close to its left surface on T type pole (12) and rotate through the bearing and be connected with dwang (13), the rear side swivelling joint of bearing and circle cover (10) is passed through to the front end of dwang (13), expanding spring (14) have been cup jointed on the surface of T type pole (12), the equal fixedly connected with fan (15) of front side of rectangle cover (7) and the front side of circle cover (10), fan (15) and driving machine (5) pass through signal connection.

2. The DLP rear projection large screen with high heat dissipation efficiency as recited in claim 1, wherein: the sliding assembly comprises a sliding rod (16), the sliding rod (16) is fixedly connected to the opposite sides of the two fixed blocks (8), a sliding sleeve (17) is connected to the surface of the sliding rod (16) in a sliding mode, and the bottom of the sliding sleeve (17) is fixedly connected with the top end of the round rod (9).

3. The DLP rear projection large screen with high heat dissipation efficiency as recited in claim 1, wherein: the middle part of the case (2) close to the inner wall of the case is fixedly connected with a radiating fin (18), and the protruding end of the radiating fin (18) is abutted against a part on the rear side of the display screen (1).

4. The DLP rear projection large screen with high heat dissipation efficiency as recited in claim 3, wherein: the rear side of the radiating fins (18) is fixedly connected with a heat conducting plate (19), and the front side of the heat conducting plate (19) completely covers the rear side of the radiating fins (18).

5. The DLP rear projection large screen with high heat dissipation efficiency as recited in claim 1, wherein: the fan (15) on the front side of the rectangular sleeve (7) is obliquely arranged, and the oblique direction of the fan (15) on the front side of the rectangular sleeve (7) is sequentially reduced from left to right.

6. The DLP rear projection large screen with high heat dissipation efficiency as recited in claim 1, wherein: heat dissipation holes (20) are formed in the bottom of the inner wall of the case (2), the heat dissipation holes (20) are evenly distributed in the bottom of the inner wall of the case (2), and dust-proof gauze (21) is fixedly connected to the tops of the heat dissipation holes (20).