Closed liquid crystal display (LCD) projector with double supports

Abstract

The utility model discloses a closed LCD projector with double supports, and relates to the technical field of projector equipment. The upper cover is connected with the partition type bottom shell, the projector shell is connected with the partition type bottom shell, the front end of one side of the partition type bottom shell is a display area cavity, the rear end of one side of the partition type bottom shell is an LED light source cavity, the rear end of the display area cavity is provided with a vertically-placed display screen, and the rear end of the display screen is provided with a horizontally-placed first cooling fin set. The projector comprises a projector shell, a display area cavity is arranged in the projector shell, a horizontally-placed second cooling fin set is arranged on the side portion of the display area cavity, movable supports are arranged on the two sides of the projector shell, the first support and the second support are movably connected through fixing nails, and the partition type projector shell is arranged, and cooling fins are arranged in the projector shell for heat dissipation. The rear end of the partition closed shell is further provided with a heat conduction fan for heating the cooling fins to dissipate heat, so that closed cooling is achieved, meanwhile, the projector is supported through the movable double supports, the projector can be conveniently placed on a table top and hung for use, and better use experience is brought to a user.

Description

Technical Field

[0001] The utility model relates to a closed LCD projector with double brackets, and relates to the technical field of projector equipment. Background Art

[0002] An LCD projector is a projector that uses a high-power LED light source to illuminate an LCD screen. The light passes through the screen and the magnifying lens to form an image and is projected onto the screen. The core experience of a projector is brightness.

[0003] In actual use, high-power LED light sources are used to achieve higher brightness, but they also generate a lot of heat. To prevent the display from being damaged by high temperatures, the core components of the optical path, such as the display, need to be cooled. The existing method is to directly introduce air from the outside through a fan to cool it. During the cooling process, dust carried in the air will also enter the area around the display and adhere to the display, greatly affecting the viewing experience of the projector. In addition, traditional projectors are usually installed by ceiling mounting or placing them flat on a table. When projectors enter homes, this method of use will cause inconvenience to users and affect projection imaging. Therefore, a closed LCD projector with dual brackets is proposed to solve the problems existing in the existing technology. Utility Model Content

[0004] The purpose of the present utility model is to address the defects or shortcomings in the prior art and provide a closed LCD projector with double brackets. A partitioned projector shell is provided, and a heat sink is arranged therein for heat dissipation. A heat-conducting fan is also provided at the rear end of the partitioned closed shell to heat the heat sink, thereby achieving closed cooling. At the same time, movable double brackets are used to support the projector, which is not only convenient for desktop placement, but also convenient for hanging use, bringing a better user experience to users.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it includes a projector housing 1, an upper cover 2, and a partition-type bottom shell 3, the upper cover 2 is connected to the partition-type bottom shell 3, the projector housing 1 is connected to the partition-type bottom shell 3, the front end of one side of the partition-type bottom shell 3 is a display area cavity 3-1, and the rear end is an LED light source cavity, a vertically placed display screen 7 is provided at the rear end of the display screen 7, a horizontally placed first heat sink group 8 is provided at the rear end of the display screen 7, and a light bulb is provided between the display screen 7 and the first heat sink group 8, and the end of the light bulb is in contact with the first heat sink group 8, a horizontally placed second heat sink group 9 is provided on the side of the display area cavity 3-1, and movable brackets are provided on both sides of the projector housing 1, and the movable brackets include a first bracket 4 and a second bracket 5, and the first bracket 4 and the second bracket 5 are movably connected by fixing nails 6.

[0006] Furthermore, a first cooling fan 10 is provided on one side of the first heat sink group 8 , and a heat dissipation hole 1 - 1 is provided on the side of the projector housing 1 corresponding to the first heat sink group 8 .

[0007] Furthermore, the first heat sink group 8 is composed of a plurality of horizontally arranged heat sinks, and one side of each heat sink is fixed to the back plate, with the back plate facing the display screen 7 .

[0008] Furthermore, the second heat sink group 9 is a partitioned radiator structure, consisting of a plurality of horizontally arranged heat sinks, and the middle of the heat sink is fixed to the fixed plate.

[0009] Furthermore, a second cooling fan 12 is provided outside the display area cavity 3 - 1 .

[0010] Furthermore, a control mainboard 11 is provided at the bottom of the upper cover 2 , and the control mainboard 11 is located above the display area cavity 3 - 1 .

[0011] Furthermore, bracket mounting holes 1 - 2 are provided on both sides of the projector housing 1 , and the bracket mounting holes 1 - 2 match the fixing pins 6 .

[0012] After adopting the above technical solution, the beneficial effects of the utility model are as follows: by setting up a partition-type projector shell and arranging heat sinks therein for heat dissipation, a heat-conducting fan is also provided at the rear end of the partition-closed shell to cooperate with the heat sink to dissipate heat, thereby achieving closed cooling. At the same time, a movable double bracket is used to support the projector, which is not only convenient for desktop placement, but also convenient for hanging use, bringing a better user experience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the present invention with the projector housing 1 removed;

[0016] Figure 3 yes Figure 2 Schematic diagram of the internal structure with the upper cover 2 removed;

[0017] Figure 4 yes Figure 3Schematic diagram of the internal structure without the control main board 11;

[0018] Figure 5 It is a schematic diagram of the explosion structure of the utility model.

[0019] Explanation of the accompanying drawings: projector housing 1, upper cover 2, partition bottom shell 3, first bracket 4, second bracket 5, fixing nail 6, display screen 7, first heat sink group 8, second heat sink group 9, first cooling fan 10, control main board 11, second cooling fan 12, heat dissipation hole 1-1, bracket mounting hole 1-2, display area cavity 3-1. DETAILED DESCRIPTION

[0020] See Figure 1-Figure 5 As shown, the technical solution adopted in this specific embodiment is: it includes a projector housing 1, an upper cover 2, and a partition bottom shell 3. The upper cover 2 is connected to the partition bottom shell 3, and the projector housing 1 is connected to the partition bottom shell 3. In this embodiment, the upper cover and the partition bottom shell are provided to form the projector body. The partition bottom shell is provided with a partition plate to form a mounting space for various components. This structure prevents external dust from entering the circuit components during heat dissipation.

[0021] Specifically, the front end of one side of the partitioned bottom shell 3 is the display area cavity 3-1, and the rear end is the LED light source cavity. A vertically placed display screen 7 is provided at the rear end of the display area cavity. A horizontally placed first heat sink group 8 is provided at the rear end of the display screen 7. A light bulb is placed between the display screen 7 and the first heat sink group 8, and the end of the light bulb is in contact with the first heat sink group 8. In this embodiment, the first heat dissipation structure is the first heat sink group. The display screen isolates the display area cavity from the rear space, and heat exchange is performed with the light bulb through the first heat sink group, thereby achieving a cooling effect. At the same time, after the display area cavity is isolated, dust will not enter from the rear, thereby achieving a dust-proof effect and preventing pollution to the inside of the display screen, thereby effectively improving the brightness of the display screen.

[0022] More specifically, the first heat sink group 8 is composed of a plurality of horizontally arranged heat sinks, and one side of each heat sink is fixed to the back plate, which faces the display screen 7. To improve the heat dissipation efficiency of the first heat sink group, a first heat dissipation fan 10 is provided on one side of the first heat sink group 8. A heat dissipation hole 1-1 is provided on the side of the projector housing 1 corresponding to the first heat sink group 8. The heat conducted by the display screen is conducted to each heat sink through the back plate of the first heat sink group, and the hot air is then blown away by the first heat dissipation fan and discharged to the outside through the heat dissipation hole, thereby achieving rapid heat dissipation. During the heat dissipation process, external air will not enter the display area cavity, and thus dust will not enter, thereby ensuring projection quality and prolonging the service life of circuit components.

[0023] The second cooling structure is a horizontally arranged second heat sink group 9 provided on the side of the display area cavity 3-1. The second heat sink group 9 is a partitioned radiator structure, consisting of a plurality of horizontally arranged heat sinks, and the middle portion of the heat sink is fixed to a fixed plate. The display area cavity is isolated from the side by the central partitioned second heat sink group. At the same time, heat conduction and cooling are performed through the heat sink. The conducted heat is carried away by the first cooling fan and blown out from the direction of the first heat sink group, thereby improving the cooling and heat dissipation effect.

[0024] Movable brackets are provided on both sides of the projector housing 1, and the movable brackets include a first bracket 4 and a second bracket 5. The first bracket 4 and the second bracket 5 are movably connected by a fixing nail 6. The traditional projector realizes angle adjustment through the lifting support rod at the bottom, but the height of the projector itself is not convenient to adjust, and when it needs to be hoisted, an additional fixing plate is required to be used in conjunction with the hanger for installation. Therefore, in this embodiment, a movable bracket is provided on the projector housing. The movable bracket consists of two relatively movable brackets. In this embodiment, a limiting plate (not shown) is also provided on the top of the bracket, so that the maximum opening and closing angle is 60 degrees. It does not directly contact the desktop during use, and the projection position is higher. After the projector is set up, the projector can be directly rotated to adjust the projection angle, which is more convenient to adjust, and brings a better user experience.

[0025] To be more specific, a second cooling fan 12 is provided on the outside of the display area cavity 3-1. When the second cooling fan is working, the heat at the display screen is blown into the second heat sink group, and discharged from the rear end of the second heat sink group to the first cooling fan. The first cooling fan then takes away the heat for cooling, so that the heat in the display area cavity can be discharged in time. Moreover, since it is partitioned on all sides, dust will not enter, ensuring the cleanliness of the display screen, ensuring the brightness, and obtaining a better user experience.

[0026] To be more specific, a control main board 11 is provided at the bottom of the upper cover 2, and the control main board 11 is located above the display area cavity 3-1. Setting the control main board at the upper part of the display area cavity facilitates centralized isolation and dust prevention, and is not directly affected by temperature, which is beneficial to extending the service life of electronic components.

[0027] To be more specific, bracket mounting holes 1-2 are provided on both sides of the projector housing 1, and the bracket mounting holes 1-2 match the fixing nails 6. After the fixing nails are connected to the bracket mounting holes, the projector housing can rotate synchronously with the fixing nails to achieve adjustment of the projection angle.

[0028] The working principle of the present invention is as follows: when the projector is working, the first cooling fan 10 and the second cooling fan 12 are started, and the heat generated by the light bulb is dissipated in two directions of the first heat sink group 8 and the second heat sink group 9. When the heat is dissipated through the first heat sink group 8, the first cooling fan 10 blows the hot air above it to the heat dissipation hole 1-1. Since the first heat sink group 8 is in contact with the light bulb part through the fixing plate, the dust is isolated from the LED light source cavity where the light bulb is located, and the dust will not enter the LED light source cavity to cause the light bulb and the display screen 7 to be contaminated by dust. The display screen 7 can maintain its brightness for a long time. Secondly, the heat from the front end of the display screen 7 is heat exchanged with the second heat sink group 9 on the side. At the same time, the second cooling fan 12 blows the hot air The air is blown horizontally from the second heat sink group 9 to the first heat dissipation fan 10, and then blown out of the heat dissipation hole 1-1 by the first heat dissipation fan 10. Since the air is blown in one direction and there is no air inlet, the heat can be effectively taken away by the circulation of external cool air, and no dust will enter the display area cavity 3-1, ensuring dustproof and display effects. During the placement of the projector, the specific height of the projector can be adjusted by adjusting the angle of the first bracket 4 and the second bracket 5, and the maximum opening and closing angle of the two brackets is 60 degrees. At the same time, the projector can be directly rotated on the movable bracket, which is convenient for adjusting the projection angle of the projector. When the projector needs to be hoisted, it can be directly hoisted by adjusting the angle of the two brackets without the need to use other fixing plates for installation.

[0029] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A closed LCD projector with dual brackets, characterized by: The projector comprises a projector housing (1), an upper cover (2), and a partitioned bottom housing (3). The upper cover (2) is connected to the partitioned bottom housing (3). The projector housing (1) is connected to the partitioned bottom housing (3). The front end of one side of the partitioned bottom housing (3) is a display area cavity (3-1), and the rear end is an LED light source cavity. A vertically placed display screen (7) is provided at the rear end of the display area cavity. A horizontally placed first heat sink group (8) is provided at the rear end of the display screen (7). A light bulb is provided between the display screen (7) and the first heat sink group (8). The end of the light bulb is in contact with the first heat sink group (8). A horizontally placed second heat sink group (9) is provided on the side of the display area cavity (3-1). Movable brackets are provided on both sides of the projector housing (1). The movable brackets include a first bracket (4) and a second bracket (5). The first bracket (4) and the second bracket (5) are movably connected via fixing pins (6).

2. The enclosed LCD projector with dual brackets according to claim 1, characterized in that: A first cooling fan (10) is provided on one side of the first cooling fin group (8), and a cooling hole (1-1) is provided on the side of the projector housing (1) corresponding to the first cooling fin group (8).

3. The enclosed LCD projector with dual brackets according to claim 1, characterized in that: The first heat sink group (8) is composed of a plurality of horizontally arranged heat sinks, and one side of each heat sink is fixed to the back plate, with the back plate facing the display screen (7).

4. The enclosed LCD projector with dual brackets according to claim 1, characterized in that: The second heat sink group (9) is a partitioned radiator structure, consisting of a plurality of horizontally arranged heat sinks, and the middle of the heat sink is fixed on a fixed plate.

5. The enclosed LCD projector with dual brackets according to claim 1, characterized in that: A second cooling fan (12) is provided outside the display area cavity (3-1).

6. The enclosed LCD projector with dual brackets according to claim 1, characterized in that: A control mainboard (11) is provided at the bottom of the upper cover (2), and the control mainboard (11) is located above the display area cavity (3-1).

7. The enclosed LCD projector with dual brackets according to claim 1, characterized in that: Bracket mounting holes (1-2) are provided on both sides of the projector housing (1), and the bracket mounting holes (1-2) match the fixing pins (6).

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