CN212115543U - A DLP rear projection large screen with high heat dissipation efficiency - Google Patents

Abstract

The utility model discloses a large DLP rear projection screen with high heat dissipation efficiency, comprising a display screen, a chassis is fixedly connected to the rear side of the display screen, a hanging column is fixedly connected to the rear side of the chassis, and the chassis is close to the rear side of the chassis. A rectangular box is fixedly connected to the rear side of the box, and a driver is fixedly installed on the surface of the inner wall of the rectangular box. The end of the rod away from the driver penetrates into the inside of the casing and is fixedly connected with a rectangular sleeve. The utility model realizes that the display screen can effectively dissipate the heat inside the casing through the cooperation of the above-mentioned structures, and the air inside the casing can be quickly and effectively It can exchange heat with the external air, improve the heat dissipation efficiency of the display screen, reduce the situation that the internal parts of the device maintain a high temperature for a long time, and indirectly improve the service life of the internal parts of the display screen.

Description

A DLP rear projection large screen with high heat dissipation efficiency

technical field

The utility model relates to the technical field of display screen equipment, in particular to a DLP rear projection large screen with high heat dissipation efficiency.

Background technique

DLP is the abbreviation of Digital Light Processor in English, which is translated as Digital Light Processor. The birth of this new projection technology enables us to finally realize digital information display after we have the ability to capture, receive and store digital information. As a light valve imaging device, the micro-reflector uses digital light processing technology to modulate the video signal, drives the DMD optical path system, and obtains a large-screen image through the projection lens. Due to the low heat dissipation effect of the existing display screen, the display screen cannot effectively disperse the inside of the chassis. The heat inside the chassis is dissipated, and the air inside the chassis cannot effectively exchange heat with the outside air, which reduces the heat dissipation efficiency of the display screen and keeps the internal parts of the device at a high temperature for a long time, which is not conducive to prolonging the service life of the device, and indirectly reduces the The service life of the internal parts of the display screen has a certain adverse effect on the actual use, so it needs to be improved.

Utility model content

The purpose of the utility model is to provide a large DLP rear projection screen with high heat dissipation efficiency, which has improved the heat dissipation effect of the display screen, the display screen can more effectively dissipate the heat inside the chassis, and the air inside the chassis can be quickly and effectively removed from the outside. The heat exchange of the gas improves the heat dissipation efficiency of the display screen, reduces the situation that the internal parts of the device maintain a high temperature for a long time, and indirectly improves the service life of the internal parts of the display screen, which brings convenience to users and practical use. It brings certain beneficial effects and solves the problems raised in the above background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a large DLP rear projection screen with high heat dissipation efficiency, including a display screen, the rear side of the display screen is fixedly connected with a chassis, and the rear side of the chassis is fixedly connected with a hanger. A rectangular box is fixedly connected to the rear side near the middle of the chassis, and a driver is fixedly installed on the surface of the inner wall of the rectangular box. The driver is connected to the display screen through a signal, and the output end of the driver is fixed A rotating rod is connected, and one end of the rotating rod away from the driver penetrates into the interior of the chassis and is fixedly connected with a rectangular sleeve. Both sides of the inner wall of the chassis are fixedly connected with fixed blocks, and opposite sides of the two fixed blocks are fixedly connected with Sliding assembly, the bottom of the sliding assembly is fixedly connected with a round rod, the surface of the round rod is slidably connected with a round sleeve, the bottom end of the round rod is fixedly connected with a limiting plate, and the inner wall of the rectangular sleeve is slidably connected with a T type rod, the surface of the T-shaped rod near its left side is rotatably connected with a rotating rod through a bearing, the front end of the rotating rod is rotatably connected with the rear side of the circular sleeve through a bearing, and the surface of the T-shaped rod is sleeved with a A telescopic spring, a fan is fixedly connected to the front side of the rectangular sleeve and the front side of the round sleeve, and the fan and the driver are connected through a signal.

Preferably, the sliding assembly includes a sliding rod, the sliding rod is fixedly connected to the opposite sides of the two fixing blocks, the surface of the sliding rod is slidably connected with a sliding sleeve, and the bottom of the sliding sleeve is connected with the top end of the round rod. Fixed connection.

Preferably, heat dissipation fins are fixedly connected to the middle part of the chassis close to the inner wall, and the protruding ends of the heat dissipation fins are in contact with the parts on the rear side of the display screen.

Preferably, a heat-conducting plate is fixedly connected to the rear side of the heat-dissipating fin, and the front side of the heat-conducting plate completely covers the rear side of the heat-dissipating fin.

Preferably, the fans on the front side of the rectangular sleeve are arranged obliquely, and the inclination directions of the fans on the front side of the rectangular sleeve are sequentially decreasing 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 evenly distributed on the bottom of the inner wall of the case, and the top of the heat dissipation holes is fixedly connected with a dust-proof gauze.

Compared with the prior art, the beneficial effect of the present utility model is: when the user turns on the display screen, the display screen will transmit the signal to the driver, the driver will start automatically, and the start of the driver will drive the rotating rod to rotate, and the rotating rod will rotate. It can drive the rectangular sleeve to rotate, and through the setting of the telescopic spring, the movement trajectory of the T-bar is limited, so that the rotation of the rectangular sleeve can drive the T-bar in it to rotate. Drive the round sleeve to slide up and down on the surface of the round rod. When the round sleeve slides to the limit plate, through the setting of the sliding rod and the round sleeve, the continued rotation of the T-shaped rod can drive the round rod to move left and right, and the left and right movement of the round rod can drive the sliding sleeve Move left and right, and the fan will start to blow air at the same time. The fan on the front side of the rectangular sleeve is inclined to increase the air blowing area inside the case, and the display screen can quickly dissipate the generated heat, which improves the heat dissipation inside the case. The speed increases the area of heat dissipation inside the chassis, reduces the situation of dust entering the interior of the chassis, brings convenience to the user, improves the work efficiency of the user, and has a certain beneficial effect on the actual use.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the top sectional view of the utility model;

3 is a front cross-sectional view of the utility model.

In the picture: 1-display screen, 2-chassis, 3-hanging column, 4-rectangular box, 5-driver, 6-rotating rod, 7-rectangular sleeve, 8-fixed block, 9-round rod, 10-circle Sleeve, 11-Limiting Plate, 12-T-Rod, 13-Rotating Rod, 14-Telescopic Spring, 15-Fan, 16-Sliding Rod, 17-Sliding Sleeve, 18-Cooling Fin, 19-Conducting Plate, 20 -Heat vents, 21-dust gauze.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. For example, based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to FIGS. 1 to 3 , the present invention provides a technical solution: a large DLP rear projection screen with high heat dissipation efficiency, comprising a display screen 1 , a chassis 2 is fixedly connected to the rear side of the display screen 1 , and the rear side of the chassis 2 A hanging column 3 is fixedly connected.

Further, cooling fins 18 are fixedly connected to the middle of the chassis 2 close to its inner wall, and the protruding ends of the cooling fins 18 are in contact with the parts on the rear side of the display screen 1 . The heat generated can be dissipated more quickly.

Further, a 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 . The disposition of the heat-dissipating fins 19 reduces the time for the heat-dissipating fins 18 to store heat. , which improves the cooling speed inside the chassis 2.

Further, the bottom of the inner wall of the case 2 is provided with heat dissipation holes 20. The setting of the heat dissipation holes 20 enhances the heat dissipation area inside the case 2. The heat dissipation holes 20 are evenly distributed on the bottom of the inner wall of the case 2, and the top of the heat dissipation holes 20 are fixedly connected. There is a dust-proof gauze 21 , and the installation of the dust-proof gauze 21 reduces the situation of dust entering the inside of the cabinet 2 .

A rectangular box 4 is fixedly connected to the rear side near the middle of the chassis 2, and a driver 5 is fixedly installed on the surface of the inner wall of the rectangular box 4. The driver 5 is a structure in which the driving motor and the reducer are integrally installed. When the driving motor starts to rotate, the rotational speed is too high, the driver 5 is connected with the display screen 1 through a signal, the display screen 1 will transmit the signal to the driver 5, the driver 5 will start automatically, and the output end of the driver 5 is fixedly connected with a rotary switch. Rod 6, the start of the driver 5 will drive the rotating rod 6 to rotate. The end of the rotating rod 6 away from the driver 5 penetrates into the interior of the chassis 2 and is fixedly connected with a rectangular sleeve 7. The rotation of the rotating rod 6 can drive the rectangular sleeve 7 to rotate. The chassis 2 Both sides of the inner wall are fixedly connected with fixed blocks 8 , opposite sides of the two fixed blocks 8 are fixedly connected with sliding components, and the bottom of the sliding components is fixedly connected with a round rod 9 .

Further, the sliding assembly includes a sliding rod 16, the sliding rod 16 is fixedly connected to the opposite sides of the two fixing blocks 8, the surface of the sliding rod 16 is slidably connected with a sliding sleeve 17, and the left and right movement of the round rod 9 can drive the sliding sleeve 17 to move left and right. , the bottom of the sliding sleeve 17 is fixedly connected with the top of the round rod 9 .

The surface of the round rod 9 is slidably connected with a round sleeve 10, and the bottom end of the round rod 9 is fixedly connected to the limit plate 11. When the round sleeve 10 slides to the limit plate 11, through the setting of the sliding rod 16 and the round sleeve 10, a T The continuous rotation of the rod 12 can drive the round rod 9 to move left and right, the inner wall of the rectangular sleeve 7 is slidably connected with a T-shaped rod 12, and the surface of the T-shaped rod 12 close to its left side is connected with a rotating rod 13 through the bearing rotation. It is set so that the rotation of the T-shaped rod 12 can drive the round sleeve 10 to slide up and down on the surface of the round rod 9, the front end of the rotating rod 13 is rotatably connected with the rear side of the round sleeve 10 through a bearing, and the surface of the T-shaped rod 12 is sleeved with a telescopic spring. 14. Through the setting of the telescopic spring 14, the movement track of the T-bar 12 is limited, so that the rotation of the rectangular sleeve 7 can drive the T-bar 12 in it to rotate. The front side of the rectangular sleeve 7 and the front of the round sleeve 10 A fan 15 is fixedly connected to both sides, and the fan 15 and the driver 5 are connected by signals.

Further, the fan 15 on the front side of the rectangular cover 7 is arranged obliquely, and the inclination direction of the fan 15 on the front side of the rectangular cover 7 is sequentially decreasing from left to right. The air blowing area inside the chassis 2 is increased.

Working principle: When the DLP rear projection large screen with high heat dissipation efficiency is in use, when the user turns on the display screen 1, the display screen 1 will transmit the signal to the driver 5, the driver 5 will start automatically, and the driver 5 will drive the rotation. When the rod 6 rotates, the rotation of the rotating rod 6 can drive the rectangular sleeve 7 to rotate. The setting of the telescopic spring 14 limits the movement track of the T-shaped rod 12, so that the rotation of the rectangular sleeve 7 can drive the T-shaped rod 12 in it to rotate. , Through the setting of the rotating rod 13, the rotation of the T-shaped rod 12 can drive the round sleeve 10 to slide up and down on the surface of the round rod 9. When the round sleeve 10 slides to the limit plate 11, through the setting of the sliding rod 16 and the round sleeve 10 , the continued rotation of the T-bar 12 can drive the round rod 9 to move left and right, the left and right movement of the round rod 9 can drive the sliding sleeve 17 to move left and right, and at the same time the fan 15 will start to blow air, and the fan 15 on the front side of the rectangular sleeve 7 is inclined. , the air blowing area inside the chassis 2 is increased. The setting of the heat dissipation fins 18 enables the display screen 1 to dissipate the generated heat relatively quickly. The setting of the heat conduction plate 19 reduces the time for the heat dissipation fins 18 to store heat. , the heat dissipation speed inside the case 2 is improved, the heat dissipation area inside the case 2 is enhanced by the setting of the heat dissipation holes 20, and the dust entering the interior of the case 2 is reduced by the setting of the dust-proof gauze 21, and the air inside the case 2 can be quickly Effective heat exchange with external air reduces the situation that the internal parts of the device maintain a high temperature for a long time, indirectly improves the service life of the internal parts of the display screen 1, brings convenience to the user, and improves the user's work. Efficiency has brought certain beneficial effects to actual use.

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

Claims (6)

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).

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