Projection system of automobile armrest box

Abstract

The utility model discloses an automobile armrest box projection system, which is provided with a projector, the projector is fixed in a central armrest box of an automobile, a projection lens of the projector projects an image upwards on a sunshade curtain of an automobile roof, a lens cover is arranged on the lens of the projector, a heat dissipation area is reserved in the central armrest box, and the heat dissipation area is provided with a heat dissipation hole. The heat dissipation area is provided with an air inlet and an air outlet, and the air inlet is connected with an air conditioner pipeline of an automobile through a heat dissipation pipeline. The projector for the armrest box of the automobile can provide a high-quality projection effect, can adjust the projection angle according to different automobile types and spaces in the automobile, has excellent heat dissipation performance, and does not occupy extra spaces in the automobile. Through the control system, a user can conveniently operate the projector of the armrest box of the automobile, and better entertainment experience in the automobile is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of in-car entertainment equipment, in particular to a projector used in a car. Background Art

[0002] With the continuous advancement of automotive technology, more and more vehicles are integrating advanced entertainment devices. Projectors have become a popular in-car entertainment device. However, existing in-car projectors have limitations, such as fixed positioning, difficulty adjusting projection angles, and excessive space occupation.

[0003] For example, the public document with publication number CN105015426A, publication date 2015-11-04, and patent name "A Vehicle-mounted Projector" discloses a vehicle-mounted projector comprising: a fixing frame, an extension arm, a telescopic arm, and a projector; one end of the fixing frame is vertically fixed to the top wall of the vehicle near the sunroof; one end of the extension arm is fixed to the lower end of the fixing frame and is parallel to the top wall; the lower end of the telescopic arm is vertically connected to the other end of the extension arm; the projector is arranged at the upper end of the telescopic arm; the projector is connected to the vehicle-mounted terminal of the vehicle; when the telescopic arm is extended, the projector extends from the opening of the sunroof to the outside of the vehicle. By arranging the fixing frame, the extension arm, the telescopic arm, and the projector near the sunroof of the vehicle, the projector is extended out of the vehicle through the cooperation of the fixing frame, the extension arm, and the telescopic arm, and the movie or other multimedia content to be played is displayed through the projector and the vehicle-mounted projection.

[0004] The projection systems of similar models are all hung on the roof, projecting towards the front or rear of the car, which not only affects collision safety, but also cannot diversify the projection direction, occupying the space for people to move around in the car. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to realize a projection system for automobiles which occupies a smaller space.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a car armrest box projection system, the system is provided with a projector, the projector is fixed in the central armrest box of the car, the projection lens of the projector projects the image upward onto the sunshade on the roof, the lens of the projector is provided with a lens cover, a heat dissipation area is reserved in the central armrest box, the heat dissipation area is provided with an air inlet and an air outlet, and the air inlet is connected to the car's air-conditioning pipe through a heat dissipation pipe.

[0007] The projector is provided with a heat sink, the heat sink is located in the heat dissipation area, and the air outlet is connected to the outside of the vehicle through a pipeline.

[0008] A temperature sensor is provided in the heat dissipation area. The temperature sensor is connected to and outputs a sensing signal to the automobile multimedia system. The multimedia system communicates with the automobile air conditioner through a CAN network.

[0009] The projector is connected to a multimedia system and a battery in a car through a wiring harness, and the audio of the projector is played by the car multimedia system.

[0010] The multimedia system communicates with the vehicle roof sunshade and sunroof via a CAN network.

[0011] The multimedia system communicates with the interior ambient light of the vehicle via a CAN network.

[0012] The lens cover is fixedly connected to the central armrest box through a cord.

[0013] The sunshade curtain is an electric curtain, and the lower surface of the sunshade curtain is covered with a curtain.

[0014] This new car armrest projector provides high-quality projection, adjustable projection angles to suit different vehicle models and interior space, excellent heat dissipation, and takes up no additional space. Through the control system, users can easily operate the car armrest projector, providing a better in-car entertainment experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following is a brief description of the contents and marks in each figure in the utility model specification:

[0016] Figure 1 Layout schematic for the car armrest projection system;

[0017] The marks in the above figure are: 1. Projector; 2. Heat dissipation duct; 3. Wiring harness; 4. Screen. DETAILED DESCRIPTION

[0018] Below, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation methods of the present invention, such as the shape, structure, relative positions and connection relationships of the various components involved, the functions and working principles of the various parts, the manufacturing process and operating methods, etc., are further explained in detail to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0019] like Figure 1As shown, this system makes full use of the space inside the car and fixes the projector 1 in the central armrest box of the car. The main purpose is to reduce the size of the projector 1 so that it can occupy as little space in the central armrest box as possible, and still reserve some area for storage in the armrest box. The projector 1 is used to generate images and project them onto the screen 4 or the space inside the car. The screen 4 can be a sunshade on the roof. The projection lens can be turned upward to project the image onto the sunshade on the roof. The sunshade is an electric curtain that can be retracted and extended as needed. The lower surface of the sunshade is covered with a screen 4. According to the parameters of the projector, a suitable screen 4 can be equipped to increase the projection effect. When projecting above, the front seats can be folded down to allow the user to watch movies in a lying position, which is more comfortable. At the same time, the seats can interact with the system. When the projection is turned on, they automatically move back and fold down to quickly enter the viewing mode.

[0020] The power supply and data lines are connected to the car's intelligent cockpit control system through pipes hidden in the sub-dashboard. It is preferred to connect the projector 1 to the car's multimedia system and battery through a wiring harness 3. The audio of the projector 1 is played by the car's multimedia system. Multimedia serves as an auxiliary device for the projector 1, reducing the hardware configuration requirements of the projector 1. In particular, when there is no need to equip audio equipment, the projector 1 can be made smaller and the car's built-in audio system can be used to improve the viewing effect. The car's multimedia system generally has a built-in Bluetooth device, which is convenient for connecting to the user's mobile phone to achieve screen projection operation.

[0021] Because the lens of projector 1 is facing upwards, a lens cover can be set on the lens to protect it from being contaminated. It can be removed manually when needed. When projector 1 is not in use, it only needs to be covered with the lens cover. To avoid losing the lens cover, the lens cover is fixed to the center armrest box with a rope.

[0022] Because the projector 1 generates a lot of heat when working, if a fan is used directly to dissipate heat, the hot air will circulate in the car, which not only affects the heat dissipation, but also affects the user's viewing experience. Therefore, a heat dissipation area is reserved in the central armrest box. The heat dissipation area is a sealed space. The projector 1 is provided with a heat sink, and the heat sink is located in the heat dissipation area. The heat dissipation area is provided with an air inlet and an air outlet. The air inlet is connected to the car's air-conditioning pipe through a heat dissipation pipe 2. The car's air-conditioning is used for auxiliary heat dissipation, which can not only improve the heat dissipation effect, but also further reduce the size of the projector 1 and increase the use space of the armrest box. The heat sink of projector 1 is preferably fin-shaped, with the heat sink air inlet oriented toward the gap between the heat sinks to enhance heat dissipation. Furthermore, a temperature sensor can be installed within the heat dissipation zone. The temperature sensor is connected to and outputs a sensing signal to the vehicle multimedia system, which communicates with the vehicle's air conditioner via a CAN network. This allows the compressor to be activated to enhance heat dissipation when conventional heat dissipation is insufficient. The temperature sensor collects temperature data, allowing the operating temperature of projector 1 to be controlled within a reasonable range. A separate valve can be installed at the air inlet, also controlled by the vehicle multimedia system. This valve is opened for air cooling only when projector 1 is turned on. The heat dissipation zone air outlet is connected to the outside of the vehicle via a pipe. Through this structural design, the heat dissipation device shares the air conditioning piping within the auxiliary instrument panel, utilizing the air conditioning air delivered thereto for heat dissipation, thus saving space and cost associated with conventional heat dissipation devices.

[0023] At the same time, the multimedia system communicates with the car's roof sunshade and sunroof through the CAN network, and can automatically control the sunshade and sunroof switches. The multimedia system also communicates with the car's interior ambient lights through the CAN network, and can link the car's interior ambient lights as needed while watching movies, further improving the viewing effect.

[0024] This system uses the armrest box space to place the projector 1, which does not occupy the activity space of the rear passengers. The projection direction is upward, the projection screen is large, and the air conditioning cold air delivered by the air conditioning duct in the auxiliary instrument panel is used for heat dissipation, which can save the space and cost of ordinary heat dissipation devices.

[0025] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A car armrest projection system, the system is equipped with a projector, characterized in that: The projector is fixed in the central armrest box of the car, and the projection lens of the projector projects the image upward onto the sunshade on the roof. A lens cover is provided on the lens of the projector. A heat dissipation area is reserved in the central armrest box, and the heat dissipation area is provided with an air inlet and an air outlet. The air inlet is connected to the air conditioning pipe of the car through a heat dissipation pipe.

2. The car armrest projection system according to claim 1, characterized in that: The projector is provided with a heat sink, the heat sink is located in the heat dissipation area, and the air outlet is connected to the outside of the vehicle through a pipeline.

3. The car armrest projection system according to claim 2, characterized in that: A temperature sensor is provided in the heat dissipation area. The temperature sensor is connected to and outputs a sensing signal to the automobile multimedia system. The multimedia system communicates with the automobile air conditioner through a CAN network.

4. The automobile armrest projection system according to claim 1, 2 or 3, characterized in that: The projector is connected to a multimedia system and a battery in a car through a wiring harness, and the audio of the projector is played by the car multimedia system.

5. The car armrest projection system according to claim 4, characterized in that: The multimedia system communicates with the vehicle roof sunshade and sunroof via a CAN network.

6. The automobile armrest projection system according to claim 5, characterized in that: The multimedia system communicates with the interior ambient light of the vehicle via a CAN network.

7. The automobile armrest projection system according to claim 1 or 6, characterized in that: The lens cover is fixedly connected to the central armrest box through a cord.

8. The vehicle armrest projection system according to claim 7, characterized in that: The sunshade curtain is an electric curtain, and the lower surface of the sunshade curtain is covered with a curtain.

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