A projection device with a scene environment stable self-adaptive adjusting system

Abstract

This invention discloses a projection device with a scene environment stability adaptive adjustment system, belonging to the field of projection equipment technology. It includes a housing with openings on both sides and a fixed frame fixedly connected to each opening. Limiting strips are fixedly connected to the inner walls of the fixed frame on both sides and the bottom. A fan is slidably connected to the inner wall of the fixed frame. Grooves are formed on both sides and the bottom of the fan, and the limiting strips slidably connect to the inner walls of the grooves of the fan. A volume regulator is fixedly connected to the upper side of the inner wall of the fixed frame. A connecting plate is fixedly connected to the inner wall of the upper groove of the fan, and the lower end of the volume regulator switch is fixedly connected to the upper end of the connecting plate. Spring telescopic rods are fixedly connected to both sides of the inner side of the fan. This invention solves the problem that during prolonged use, when the heat is high and the fan speed is fast, the high wind noise easily masks the sound emitted by the projection device, requiring the user to manually adjust the volume, resulting in poor environmental adaptive adjustment capability and an uncomfortable user experience.

Description

Technical Field

[0001] This invention relates to the field of projection equipment technology, and in particular to a projection device with a scene environment stability adaptive adjustment system. Background Technology

[0002] A projector is a device that can project images or videos onto a screen. It can be connected to computers, VCD players, DVD players, BD players, game consoles, DV players, etc., through different interfaces to play corresponding video signals. When using a projector, it is necessary to adjust it according to the on-site environment to improve the viewing and listening experience.

[0003] Chinese Patent Publication No. CN 214070059 U discloses an adaptive projector based on image analysis. It uses a waterproof motor to drive a fan through a shaft to dissipate heat from the projection device. The heat is absorbed by metal strips on both sides of the fan, and the air is exhausted through holes on both sides of the casing. This achieves internal heat dissipation during long-term operation. However, it does not consider the noise during heat dissipation. When the temperature is high and the fan speed is fast during long-term use, the high wind noise can easily mask the sound emitted by the projection device. Users need to manually adjust the volume. The adaptive adjustment capability is poor and the user experience is not comfortable. Summary of the Invention

[0004] The purpose of this invention is to provide a projection device with a scene environment stability adaptive adjustment system, which solves the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a projection device with a scene environment stability adaptive adjustment system, comprising a housing, openings on both sides of the housing and fixed frames fixedly connected to the openings, limit strips fixedly connected to both sides and the bottom of the inner wall of the fixed frame, a fan slidably connected to the inner wall of the fixed frame, grooves on both sides and the bottom of the fan, the limit strips slidably connected to the inner wall of the grooves of the fan, a volume regulator fixedly connected to the upper side of the inner wall of the fixed frame, and the upper side of the groove of the fan fixedly connected to the inner wall of the groove. A connecting plate is fixedly connected to the upper end of the connecting plate, which is fixedly connected to the lower end of the volume regulator switch. Spring telescopic rods are fixedly connected to both sides of the inner side of the fan. An L-shaped plate is fixedly connected to the end of the spring telescopic rod away from the fan. The end of the L-shaped plate away from the spring telescopic rod is fixedly connected to the inner wall of the outer casing. A volume control panel is fixedly installed on the upper side of the inner wall of the outer casing. The volume regulator is electrically connected to the volume control panel through a circuit line. A side plate is fixedly connected to one side of the outer casing. A self-adjusting air vent mechanism is provided on the inner side of the side plate.

[0006] Preferably, the air outlet self-adjusting mechanism includes an extension rod, one end of which is fixedly connected to the inner side of the fan, the end of the extension rod away from the fan is fixedly connected to a connecting rod, the end of the connecting rod away from the extension rod is fixedly connected to a connecting plate two, both the upper and lower ends of the connecting plate two are fixedly connected to horizontal plates, and the middle of the upper and lower horizontal plates is fixedly connected to a baffle.

[0007] Preferably, the side plate has horizontal through grooves on both the upper and lower sides, and a vertical air inlet groove is formed on the surface of the side plate, with the vertical air inlet groove located in the middle of the horizontal through groove.

[0008] Preferably, both the upper and lower ends of the second connecting plate slide through the inner wall of the transverse through groove, and the inner side of the baffle slides through the outer side of the side plate.

[0009] Preferably, a battery and a projection control module are fixedly installed on the lower inner wall of the housing. The battery is electrically connected to the motor of the fan via a circuit line. A projection lens is fixedly installed on the side of the housing away from the side plate. The projection control module is electrically connected to the volume control panel and the projection lens via a circuit line.

[0010] Preferably, an exhaust plate is provided on the side of the fixed frame away from the outer shell, and a connecting groove is provided at each of the four corners of the side of the fixed frame away from the outer shell, with a magnet fixedly connected to the inner wall of the connecting groove. Metal protrusions are fixedly connected to each of the four corners of the inner side of the exhaust plate, and the metal protrusions magnetically attach to the side of the magnet on the inner wall of the connecting groove. The inner side of the exhaust plate is attached to the outer side of the fixed frame.

[0011] Preferably, a base plate is fixedly connected to the bottom surface of the outer shell, and a threaded hole is provided in the middle of the bottom surface of the base plate.

[0012] Compared with related technologies, the projection device with a scene environment stability adaptive adjustment system provided by the present invention has the following beneficial effects:

[0013] This invention provides a projection device with a scene environment stability adaptive adjustment system. By setting up a volume regulator, a fixed frame, and a spring telescopic rod, when the internal temperature of the casing is too high, the motor of the fan is controlled to increase its speed, thereby increasing the air speed blown out by the fan blades and improving the heat dissipation effect. When the fan blade speed increases, due to the reaction force, the fan continues to move inward a certain distance. The fan drives the volume regulator switch to move laterally through the connecting plate. The volume regulator sends a signal to the volume control panel through the circuit line to control the speaker to increase the volume. The faster the fan blade speed, the louder the speaker volume, and the slower the fan blade speed, the quieter the speaker volume. The minimum state is the volume adjusted by the user, thereby achieving adaptive volume adjustment to wind noise, avoiding wind noise masking the volume, and eliminating the need for repeated manual adjustments.

[0014] This invention provides a projection device with a scene environment stability adaptive adjustment system. By setting up an air outlet self-adjustment mechanism, when the fan blade speed increases, the lateral movement distance of the baffle increases, and the degree of misalignment with the corresponding vertical air inlet slot opening increases, thereby increasing the air inlet area and increasing the unit air intake volume, thereby further improving the heat dissipation effect. Moreover, the increase in unit air intake volume can also reduce wind noise, further reduce the impact of noise, and improve comfort.

[0015] This invention provides a projection device with a scene environment stability adaptive adjustment system. By setting a self-adjusting air outlet mechanism, when the power is turned off after use, the fan blades stop rotating, the spring in the spring telescopic rod returns to its original position, the fan resets, and the baffle also resets to block the vertical air inlet opening. During the reset process, the baffle can also scrape off the dust attached to the side plate surface, reducing dust accumulation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram showing the overall structure of the present invention disassembled.

[0018] Figure 3 This is a schematic diagram showing the disassembly of the internal structure of the fixed frame of the present invention;

[0019] Figure 4 This is a schematic diagram of the bottom structure of the volume regulator of the present invention;

[0020] Figure 5 For the present invention Figure 2 Enlarged view of a portion of point A in the middle;

[0021] Figure 6 For the present invention Figure 1 A magnified view of a portion of point B in the middle.

[0022] In the diagram: 1. Outer shell, 2. Fixing frame, 3. Limiting strip, 4. Fan, 5. Volume regulator, 6. Connecting plate one, 7. Spring telescopic rod, 8. L-shaped plate, 9. Volume control panel, 10. Battery, 11. Projection control module, 12. Side plate, 13. Horizontal through slot, 14. Vertical air inlet slot, 15. Extension rod, 16. Connecting rod, 17. Connecting plate two, 18. Horizontal plate, 19. Baffle, 20. Exhaust plate, 21. Metal protrusion, 22. Connecting groove, 23. Base plate, 24. Projection lens. Detailed Implementation

[0023] Example 1:

[0024] Please see Figures 1-5This invention provides a technical solution, including a housing 1. Both sides of the housing 1 have openings, and a fixed frame 2 is fixedly connected to each opening. Limiting strips 3 are fixedly connected to both sides and the bottom of the inner wall of the fixed frame 2. A fan 4 is slidably connected to the inner wall of the fixed frame 2. Grooves are formed on both sides and the bottom of the fan 4. The limiting strips 3 slidably connect to the inner walls of the grooves of the fan 4. A volume regulator 5 is fixedly connected to the upper side of the inner wall of the fixed frame 2. A connecting plate 6 is fixedly connected to the inner wall of the groove on the upper side of the fan 4. The upper end of the connecting plate 6 is fixedly connected to the lower end of the switch of the volume regulator 5. Spring telescopic rods 7 are fixedly connected to both sides of the inner side of the fan 4. An L-shaped plate 8 is fixedly connected to the end of the spring telescopic rod 7 away from the fan 4. The end of the L-shaped plate 8 away from the spring telescopic rod 7 is fixedly connected to the inner wall of the housing 1. A volume control panel 9 is fixedly installed on the upper side of the inner wall of the housing 1. The volume regulator 5 is electrically connected to the volume control panel 9 via a circuit wire. A side plate 12 is fixedly connected to one side of the shell 1. A self-adjusting air vent mechanism is provided on the inner side of the side plate 12. A battery 10 and a projection control module 11 are fixedly installed on the lower inner wall of the shell 1. The battery 10 is electrically connected to the motor of the fan 4 through a circuit line. A projection lens 24 is fixedly installed on the side of the shell 1 away from the side plate 12. The projection control module 11 is electrically connected to the volume control panel 9 and the projection lens 24 through a circuit line. An exhaust plate 20 is provided on the side of the fixed frame 2 away from the shell 1. A connecting groove 22 is opened at each of the four corners of the side of the fixed frame 2 away from the shell 1, and a magnet is fixedly connected to the inner wall of the connecting groove 22. A metal protrusion 21 is fixedly connected to each of the four corners of the inner side of the exhaust plate 20. The metal protrusion 21 magnetically attaches to the side of the magnet on the inner wall of the connecting groove 22. The inner side of the exhaust plate 20 is attached to the outer side of the fixed frame 2. A bottom plate 23 is fixedly connected to the bottom surface of the shell 1. A threaded hole is opened in the middle of the bottom surface of the bottom plate 23.

[0025] In this embodiment: the outer casing 1 is mounted on the projector bracket through the threaded hole at the bottom of the base plate 23. The projection lens 24 faces the projection screen. The outer casing 1 has a built-in speaker and is electrically connected to the volume control panel 9. During normal operation, the battery 10 powers the motors of the projection control module 11 and the fan 4. The projection lens 24 has a built-in ambient light sensor module, which can adaptively adjust the brightness to avoid excessive projection brightness. The volume regulator 5 is an existing device that can linearly adjust the volume. The fan blades of the fan 4 rotate and blow air to both sides to expel heat from the inside of the outer casing 1 and prevent internal heat accumulation. When the fan blades of the fan 4 start, since the fan 4 is slidably connected to the inner wall of the fixed frame 2, the reaction force of the fan 4 blowing air outward will push the fan 4 to slide a certain distance inward to the fixed frame 2. The spring in the spring telescopic rod 7 is compressed and shortened, and the air outlet self-adjustment mechanism moves laterally to allow outside air to enter the outer casing 1. The projection control module 11 has a built-in temperature control module. When it senses that the internal temperature of the outer casing 1 is too high, it controls the motor of the fan 4 to increase its speed, thereby increasing the fan speed. The fan 4 blows air at a higher speed to improve heat dissipation. When the fan blade speed increases, the fan 4 moves further inward due to the reaction force. The fan 4 drives the volume regulator 5 to move laterally via the connecting plate 6. The volume regulator 5 sends a signal to the volume control panel 9 via the circuit line to control the speaker to increase the volume. The faster the fan blade speed, the louder the speaker volume; the slower the fan blade speed, the quieter the speaker volume. The minimum volume is the volume that the user can adjust themselves, thus achieving adaptive volume adjustment to wind noise. This avoids wind noise masking the volume and eliminates the need for repeated manual adjustments. It solves the problem that when the fan is hot and the fan speed is fast for a long time, the high wind noise can easily mask the sound emitted by the projection device, requiring the user to manually adjust the volume. This results in poor environmental adaptive adjustment and an uncomfortable user experience. The exhaust plate 20 protects the fan 4. The exhaust plate 20 is attached to the outside of the fixed frame 2 by the metal protrusion 21 and the connecting groove 22 and can be freely disassembled for cleaning.

[0026] Example 2:

[0027] Please see Figure 1 , Figure 2 and Figure 6Based on Embodiment 1, the present invention provides a technical solution: the air outlet self-adjusting mechanism includes an extension rod 15, one end of the extension rod 15 is fixedly connected to the inner side of the fan 4, the end of the extension rod 15 away from the fan 4 is fixedly connected to a connecting rod 16, the end of the connecting rod 16 away from the extension rod 15 is fixedly connected to a connecting plate 17, both the upper and lower ends of the connecting plate 17 are fixedly connected to horizontal plates 18, the middle of the upper and lower horizontal plates 18 is fixedly connected to a baffle 19, both the upper and lower sides of the side plate 12 are provided with transverse through grooves 13, the surface of the side plate 12 is provided with a vertical air inlet groove 14, the vertical air inlet groove 14 is located in the middle of the transverse through groove 13, both the upper and lower ends of the connecting plate 17 are slidably connected to the inner wall of the transverse through groove 13, and the inner side of the baffle 19 is slidably connected to the outer side of the side plate 12.

[0028] In this embodiment: When the fan 4 starts, the fan 4 moves inward a certain distance, driving the horizontal plate 18 and the baffle 19 to move laterally via the extension rod 15, connecting rod 16, and connecting plate 17. Initially, the baffle 19 completely blocks the opening of the vertical air inlet slot 14 to prevent external dust and foreign objects from entering the outer casing 1. After the fan 4 is turned on, the baffle 19 moves and is misaligned with the opening of the vertical air inlet slot 14, allowing outside air to enter the outer casing 1 through the vertical air inlet slot 14. When the fan blade speed of the fan 4 increases, the lateral movement distance of the baffle 19 increases, and... The corresponding vertical air inlet slot 14 opening misalignment is increased, thereby increasing the air intake area and increasing the unit air intake volume, which further improves the heat dissipation effect. In addition, the increased unit air intake volume can also reduce wind noise, further reduce noise impact, and improve comfort. When the power is turned off after use, the fan blades of the fan 4 stop rotating, the spring in the spring telescopic rod 7 returns to its original position, the fan 4 resets, and the baffle 19 also resets to block the opening of the vertical air inlet slot 14. During the reset process, the baffle 19 can also scrape off the dust attached to the surface of the side plate 12, reducing dust accumulation.

[0029] Working Principle: During normal operation, the battery 10 powers the projection control module 11 and the motor of the fan 4. The projection lens 24 has a built-in ambient light sensor module, which can adaptively adjust the brightness to avoid excessive projection brightness. The fan blades of the fan 4 rotate and blow air to both sides to expel heat from the inside of the casing 1 and prevent internal heat accumulation. When the fan blades of the fan 4 start, since the fan 4 is slidably connected to the inner wall of the fixed frame 2, the reaction force of the fan 4 blowing air outward will push the fan 4 to slide a distance inward to the fixed frame 2. The spring in the spring telescopic rod 7 is compressed and shortened, and the air outlet self-adjustment mechanism moves laterally to allow outside air to enter the casing 1. The projection control module 11 has a built-in temperature control module. When it senses that the internal temperature of the casing 1 is too high, it controls the motor of the fan 4 to increase the speed, thereby increasing the air speed blown out by the fan blades of the fan 4 and improving the heat dissipation effect. When the fan blade speed of the fan 4 increases, due to the reaction force, the fan 4 continues to move inward a distance. The fan 4 drives the switch of the volume regulator 5 to move laterally through the connecting plate 6, adjusting the volume. The regulator 5 sends a signal to the volume control panel 9 via the circuit line to control the speaker to increase the volume. The faster the fan blades of the fan 4 rotate, the louder the speaker volume; the slower the fan blades of the fan 4 rotate, the quieter the speaker volume. The minimum volume is the volume that the user can adjust themselves, thus achieving adaptive volume adjustment to wind noise and avoiding wind noise masking the volume. No manual adjustment is required. When the fan 4 starts, the fan 4 moves inward a certain distance, and through the extension rod 15, connecting rod 16 and connecting plate 17, it drives the horizontal plate 18 and baffle 19 to move laterally. In the initial state, the baffle 19 completely blocks the opening of the vertical air inlet slot 14 to prevent external dust and foreign objects from entering the outer casing 1. After the fan 4 is turned on, the baffle 19 moves and is misaligned with the opening of the vertical air inlet slot 14, so that outside air can enter the outer casing 1 through the vertical air inlet slot 14. When the fan blade speed of the fan 4 increases, the lateral movement distance of the baffle 19 increases, and the degree of misalignment with the corresponding opening of the vertical air inlet slot 14 increases, thereby increasing the air intake area and increasing the unit air intake volume.

Claims

1. A projection device with a scene environment stabilization adaptive adjustment system, comprising a housing (1), characterized in that: Both sides of the outer shell (1) are provided with openings and fixed frames (2) are fixedly connected to the openings. Limiting strips (3) are fixedly connected to both sides and the bottom of the inner wall of the fixed frame (2). A fan (4) is slidably connected to the inner wall of the fixed frame (2). Grooves are provided on both sides and the bottom of the fan (4). The limiting strips (3) are slidably connected to the inner wall of the groove of the fan (4). A volume regulator (5) is fixedly connected to the upper side of the inner wall of the fixed frame (2). A connecting plate (6) is fixedly connected to the inner wall of the groove on the upper side of the fan (4). The upper end of the connecting plate (6) is fixedly connected to the volume regulator (5). 5) At the lower end of the switch, spring telescopic rods (7) are fixedly connected to both sides of the inner side of the fan (4). An L-shaped plate (8) is fixedly connected to the end of the spring telescopic rod (7) away from the fan (4). The end of the L-shaped plate (8) away from the spring telescopic rod (7) is fixedly connected to the inner wall of the outer shell (1). A volume control panel (9) is fixedly installed on the upper side of the inner wall of the outer shell (1). The volume regulator (5) is electrically connected to the volume control panel (9) through a circuit line. A side plate (12) is fixedly connected to one side of the outer shell (1). A self-adjusting air outlet mechanism is provided on the inner side of the side plate (12). The air outlet self-adjusting mechanism includes an extension rod (15), one end of which is fixedly connected to the inner side of the fan (4), and the end of the extension rod (15) away from the fan (4) is fixedly connected to a connecting rod (16). The end of the connecting rod (16) away from the extension rod (15) is fixedly connected to a connecting plate two (17). Both the upper and lower ends of the connecting plate two (17) are fixedly connected to a horizontal plate (18), and a baffle (19) is fixedly connected to the middle of the horizontal plates (18) on both the upper and lower sides. The side plate (12) has horizontal through grooves (13) on both the upper and lower sides, and a vertical air inlet groove (14) is provided on the surface of the side plate (12). The vertical air inlet groove (14) is located in the middle of the horizontal through groove (13). The upper and lower ends of the connecting plate 2 (17) are both through the inner wall of the sliding connection transverse through groove (13), and the inner side of the baffle (19) is slidably connected to the outer side of the side plate (12). When the fan (4) starts, the fan (4) moves inward a certain distance, and through the extension rod (15), connecting rod (16) and connecting plate two (17), it drives the horizontal plate (18) and baffle (19) to move laterally. In the initial state, the baffle (19) completely blocks the opening of the vertical air inlet slot (14). After the fan (4) is turned on, the baffle (19) moves and is misaligned with the opening of the vertical air inlet slot (14), so that outside air can enter the outer casing through the vertical air inlet slot (14). 1) When the fan blade speed of the blower (4) increases, the baffle (19) moves laterally and the misalignment with the opening of the corresponding vertical air inlet slot (14) increases. When the power is turned off after use, the fan blade of the blower (4) stops rotating, the spring in the spring extension rod (7) returns to its original position, and the blower (4) resets, so that the baffle (19) also resets and blocks the opening of the vertical air inlet slot (14). During the reset process, the baffle (19) can scrape off the dust attached to the surface of the side plate (12).

2. The projection device with a scene environment stability adaptive adjustment system according to claim 1, characterized in that: A battery (10) and a projection control module (11) are fixedly installed on the lower inner wall of the housing (1). The battery (10) is electrically connected to the motor of the fan (4) through a circuit line. A projection lens (24) is fixedly installed on the side of the housing (1) away from the side plate (12). The projection control module (11) is electrically connected to the volume control panel (9) and the projection lens (24) through a circuit line.

3. The projection device with a scene environment stability adaptive adjustment system according to claim 2, characterized in that: The fixed frame (2) is provided with an exhaust plate (20) on the side away from the outer shell (1). The four corners of the fixed frame (2) away from the outer shell (1) are provided with connecting grooves (22) and magnets are fixedly connected to the inner wall of the connecting grooves (22). The four corners of the inner side of the exhaust plate (20) are fixedly connected with metal protrusions (21). The metal protrusions (21) magnetically attach to the side of the magnets on the inner wall of the connecting grooves (22). The inner side of the exhaust plate (20) is attached to the outer side of the fixed frame (2).

4. The projection device with a scene environment stability adaptive adjustment system according to claim 3, characterized in that: The bottom surface of the outer shell (1) is fixedly connected to a base plate (23), and a threaded hole is provided in the middle of the bottom surface of the base plate (23).

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