An office display with automatic electrostatic dust removal

Abstract

The application relates to the technical field of display, and discloses an office display with automatic electrostatic dust removal, which adopts a dust self-checking device, can irradiate the screen with linear infrared light parallel to the surface of the screen, highlight the dust, receive the reflected infrared light with an infrared sensor, and form an image, so that the distribution of the dust on the screen can be analyzed, the direction of the duckbill air outlet can be adjusted, and the dust can be removed at a fixed point; in the scheme, air flow blows through a discharge comb, air is ionized by a sharp end discharge effect to generate static electricity, the air carries positive and negative charges, and the charges on the surface of the screen can be neutralized, screen static electricity is eliminated, dust is blown away, the difficulty of dust removal is reduced, and the screen is prevented from being damaged by static electricity.

Description

Technical Field

[0001] This invention relates to the field of display technology, specifically to an office display with automatic electrostatic dust removal. Background Technology

[0002] Liquid crystal displays (LCDs) are a type of flat-panel display technology widely used in electronic devices. Compared to other display technologies, LCDs have several advantages, such as lower power consumption, thinner design, lighter weight, and the ability to produce high-resolution images. Therefore, they are widely used in various electronic devices such as computer monitors, televisions, mobile phones, tablets, and digital photo frames.

[0003] However, traditional monitors are prone to static electricity, which attracts dust to the screen, affecting its transparency and clarity and thus reducing the visual experience. At the same time, static electricity may cause electrostatic discharge, interfering with the normal operation of the monitor and may also interfere with the user's interaction with the touch screen. Summary of the Invention

[0004] The purpose of this invention is to provide an office monitor with automatic electrostatic dust removal, so as to solve the problem mentioned in the background art that the surface of traditional monitors is prone to dust accumulation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an office display with automatic electrostatic dust removal, including a liquid crystal display, a dust self-detection device is provided at the bottom of the liquid crystal display, a linear infrared light source is provided above the dust self-detection device, and an infrared sensor is provided on the dust self-detection device. A gas delivery box is fixedly connected to the back of the LCD display by bolts, and a folding bracket is fixedly installed on the gas delivery box; An air intake fan is provided on the gas delivery box, and an arc-shaped air guide pipe is connected to the upper end of the gas delivery box. An air guide groove is opened at the upper end of the liquid crystal display. The arc-shaped air guide pipe passes through the air guide groove. A duckbill air outlet is provided at the end of the arc-shaped air guide pipe. A discharge comb is provided at the end of the arc-shaped air guide pipe. A discharge comb cleaning mechanism is provided on the outside of the discharge comb.

[0006] Furthermore, the dust self-inspection device is a long strip fixed to the lower edge of the LCD display. The linear infrared light source above the dust self-inspection device is a linear light source, and the emission direction of the linear infrared light source is close to and parallel to the surface glass of the LCD display. The infrared sensor is set at the center of the dust self-inspection device, and the lens of the infrared sensor faces the screen glass of the LCD display.

[0007] Furthermore, the folding bracket includes a first bracket and a second bracket, which are movably connected by a rotating shaft. An arc-shaped bracket mounting groove is provided on one side of the gas delivery box, and three bracket fixing pins are provided in the bracket mounting groove. The gas delivery box is fixedly connected to the folding bracket through the bracket mounting groove and the bracket fixing pins.

[0008] Furthermore, the gas delivery box is equipped with three sets of air intake fans.

[0009] Furthermore, a fixed exhaust pipe is fixedly connected to the end of the arc-shaped air guide pipe, the duckbill air outlet is rotatably connected to the fixed exhaust pipe, a servo motor is fixedly installed inside the fixed exhaust pipe, and the end of the servo motor is fixedly connected to the duckbill air outlet through a keyway.

[0010] Furthermore, the duckbill air outlet, the fixed exhaust pipe, and the servo motor are all provided in three sets, and the openings of the three sets of duckbill air outlets all face downwards.

[0011] Furthermore, the discharge comb includes a first metal comb and a second metal comb, which are respectively connected to the positive and negative terminals of the power supply. Both the first and second metal combs are machined with dense discharge teeth. The discharge teeth on the first metal comb and the discharge teeth on the second metal comb are opposite each other, and there is a gap between the discharge teeth.

[0012] Furthermore, a heat sink is fixedly installed inside the gas delivery box, and heat sink fins are machined on both the inner and outer sides of the heat sink. The display motherboard is fixedly installed inside the heat sink.

[0013] Furthermore, the discharge comb cleaning mechanism includes two sets of silicone scrapers. Each silicone scraper has a cleaning groove, through which the discharge teeth pass. The edges of the discharge teeth are in close contact with the inner edge of the cleaning groove. A drive screw is rotatably connected to the end of the arc-shaped air guide tube. The drive screw passes through an airtight movable plate, which is connected to the drive screw via a first screw nut. The airtight movable plate blocks airflow within the arc-shaped air guide tube. A first bevel gear is fixedly connected to one end of the drive screw, which meshes with a second bevel gear. A first gear is fixedly connected to one end of the second bevel gear. A bidirectional screw is movably connected to the end of the arc-shaped air guide tube, with a second gear fixedly connected to the middle section of the bidirectional screw. The bidirectional screw passes through both ends of the silicone scraper, and the silicone scraper is connected to the bidirectional screw via a second screw nut.

[0014] Furthermore, the bidirectional lead screw is divided into two sections by the second gear, and the thread directions of the two sections are opposite. The second lead screw nuts on the two sets of silicone scrapers are respectively connected to the two sections of the bidirectional lead screw.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention discloses an automatic electrostatic dust removal office monitor. By employing a dust self-detection device, linear infrared light parallel to the screen surface is used to illuminate the screen, highlighting dust. An infrared sensor receives the reflected infrared light and forms an image, allowing analysis of the dust distribution on the screen. This enables adjustment of the direction of the air outlet to precisely remove dust. Simultaneously, this solution utilizes airflow blowing over a discharge comb, using the tip discharge effect to ionize the air and generate static electricity, causing the air to carry positive and negative charges. This static electricity is then neutralized with the charge on the screen surface, eliminating static electricity and blowing away dust. This reduces the difficulty of dust removal and prevents electrostatic damage to the screen.

[0016] 2. The present invention provides an automatic electrostatic dust removal office monitor. A heat sink fixedly installed inside the gas delivery box dissipates heat from the monitor motherboard. The heat sink absorbs the heat from the monitor motherboard and prevents it from overheating. At the same time, when the intake fan blows air into the gas delivery box, it cools the heat sink. Then, the hot air is blown out from the duckbill air outlet. The hot air increases the mobility of impurities, making them easier to be blown away by the wind. At the same time, the hot air also warms the surface of the display screen, preventing fogging or condensation from appearing on the screen.

[0017] 3. The present invention provides an automatic electrostatic dust removal office display. Through the setting of the discharge comb cleaning mechanism, the airflow propels the airtight movable plate upward, thereby driving the silicone scraper to scrape off the dust and fine fibers on the discharge comb through a series of screws and gears, thus avoiding contamination of the discharge teeth. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the appearance and structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the appearance and structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the dust self-inspection device of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is an exploded view of the present invention; Figure 6 This is a schematic diagram of the arc-shaped air guide tube structure of the present invention; Figure 7 This is a schematic diagram of the heat sink structure of the present invention; Figure 8 This is a schematic diagram of the duckbill air outlet structure of the present invention; Figure 9 For the present invention Figure 8Enlarged structural diagram at point B; Figure 10 This is a schematic diagram of the discharge comb structure of the present invention; Figure 11 This is a schematic diagram of the discharge comb cleaning mechanism of the present invention; Figure 12 For the present invention Figure 11 Enlarged structural diagram at point C; Figure 13 This is a schematic diagram of the transmission structure of the discharge comb cleaning mechanism of the present invention.

[0019] Labels in the diagram: 1. LCD display; 2. Dust self-inspection device; 3. Linear infrared light source; 4. Infrared sensor; 5. Gas delivery box; 6. Folding bracket; 601. First bracket; 602. Second bracket; 603. Rotating shaft; 7. Bracket mounting slot; 8. Bracket fixing pin; 9. Intake fan; 10. Arc-shaped air guide pipe; 11. Air guide groove; 12. Duckbill air outlet; 13. Fixed exhaust pipe; 14. Servo motor; 15. Discharge comb; 1501. First metal comb ; 1502, Second metal comb; 1503, Discharge tooth; 16, Heat sink; 17, Display motherboard; 18, Discharge comb cleaning mechanism; 1801, Silicone scraper; 1802, Cleaning tank; 1803, Drive screw; 1804, Airtight movable plate; 1805, First screw nut; 1806, First bevel gear; 1807, Second bevel gear; 1808, First gear; 1809, Bidirectional screw; 1810, Second gear; 1811, Second screw nut. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0022] Example 1: Combination Figure 1 - Figure 13An automatic electrostatic dust removal office monitor includes an LCD monitor 1. A dust self-detection device 2 is installed at the bottom of the LCD monitor 1. The dust self-detection device 2 is elongated and fixed to the lower edge of the LCD monitor 1. A linear infrared light source 3 is installed above the dust self-detection device 2. The linear infrared light source 3 is a linear light source, and the light emission direction of the linear infrared light source 3 is close to and parallel to the surface glass of the LCD monitor 1. Thus, the infrared light emitted by the linear infrared light source 3 can closely adhere to the screen surface and highlight the dust on the screen surface. An infrared sensor 4 is installed on the dust self-detection device 2. The infrared sensor 4 is located at the center of the dust self-detection device 2, and the lens of the infrared sensor 4 faces the screen glass of the LCD monitor 1. It can receive the infrared light reflected by the dust and thus identify the area where the dust is located.

[0023] A gas delivery box 5 is bolted to the back of the LCD monitor 1. A folding bracket 6 is fixedly mounted on the gas delivery box 5. The folding bracket 6 includes a first bracket 601 and a second bracket 602, which are movably connected by a rotating shaft 603. Rotating the first bracket 601 and the second bracket 602 adjusts the angle of the LCD monitor 1. An arc-shaped bracket mounting groove 7 is provided on one side of the gas delivery box 5. Three bracket fixing pins 8 are provided in the bracket mounting groove 7. The bracket fixing pins 8 can be inserted into the second bracket 602, and the folding bracket 6 is fixed by the bracket mounting groove 7 and the bracket fixing pins 8.

[0024] An intake fan 9 is installed on the gas delivery box 5. Three sets of intake fans 9 are provided to draw a large amount of air into the gas delivery box 5. An arc-shaped air guide pipe 10 for guiding air is connected to the upper end of the gas delivery box 5. An air guide groove 11 is opened at the upper end of the LCD display 1. The arc-shaped air guide pipe 10 passes through the air guide groove 11 and through the LCD display 1. A duckbill-shaped air outlet 12 is provided at the end of the arc-shaped air guide pipe 10. A fixed exhaust pipe 13 is fixedly connected to the end of the arc-shaped air guide pipe 10. The duckbill-shaped air outlet 12 is rotatably connected to the fixed exhaust pipe 13. A servo motor 14 is fixedly installed inside the fixed exhaust pipe 13. The end of the servo motor 14 is fixedly connected to the duckbill-shaped air outlet 12 via a keyway. The servo motor 14 can receive the analysis results from the infrared sensor 4 and adjust the orientation of the duckbill-shaped air outlet 12 to align with the dust. In the area, a discharge comb 15 is provided at the end of the arc-shaped air duct 10. The discharge comb 15 includes a first metal comb 1501 and a second metal comb 1502. The first metal comb 1501 and the second metal comb 1502 are respectively connected to the positive and negative terminals of the power supply. Dense discharge teeth 1503 are processed on both the first metal comb 1501 and the second metal comb 1502. The discharge teeth 1503 on the first metal comb 1501 and the second metal comb 1502 are opposite each other, and there is a gap between the discharge teeth 1503. In this way, when the first metal comb 1501 and the second metal comb 1502 are energized, a tip discharge phenomenon will occur at the tip of the discharge teeth 1503, thereby ionizing the air, making the air charged, neutralizing the static electricity on the screen, eliminating the static electricity on the screen, and blowing away the dust at the same time.

[0025] A heat sink 16 is fixedly installed inside the gas delivery box 5. Heat sink fins are processed on both the inner and outer sides of the heat sink 16. The monitor motherboard 17 is fixedly installed inside the heat sink 16. In this way, the heat sink 16 can absorb the heat of the monitor motherboard 17 and prevent the motherboard from overheating. At the same time, when the intake fan 9 blows air into the gas delivery box 5, it will cool down the heat sink 16. Then the hot air is blown out from the duckbill air outlet 12, which can increase the mobility of impurities and make them easier to be blown away by the wind. At the same time, the hot air can also warm the surface of the display screen and prevent fogging or condensation from appearing on the screen.

[0026] A discharge comb cleaning mechanism 18 is provided on the outer side of the discharge comb 15. The discharge comb cleaning mechanism 18 includes two sets of silicone scrapers 1801. The silicone scrapers 1801 have cleaning grooves 1802. The discharge teeth 1503 pass through the cleaning grooves 1802 on the silicone scrapers 1801, and the edges of the discharge teeth 1503 are in close contact with the inner edge of the cleaning grooves 1802. The end of the arc-shaped air guide tube 10 is rotatably connected to a drive screw 1803. The drive screw 1803 passes through an airtight movable plate 1804. The airtight movable plate 1804 is connected to the drive screw 1804 through a first screw nut 1805. A drive screw 1803 is connected to a gas-tight movable plate 1804 that blocks airflow within the arc-shaped air guide tube 10. A first bevel gear 1806 is fixedly connected to one end of the drive screw 1803. The first bevel gear 1806 meshes with a second bevel gear 1807. A first gear 1808 is fixedly connected to one end of the second bevel gear 1807. A bidirectional screw 1809 is movably connected to the end of the arc-shaped air guide tube 10. A second gear 1810 is fixedly connected to the middle section of the bidirectional screw 1809. The bidirectional screw 1809 passes through both ends of the silicone scraper 1801, and the silicone scraper... 1801 is connected to the bidirectional lead screw 1809 via the second lead screw nut 1811. Thus, as the intake fan 9 rotates forward and reverse, the airflow pressure drives the airtight movable plate 1804 within the discharge comb cleaning mechanism 18 to move up and down along the drive lead screw 1803. This, in turn, drives the drive lead screw 1803 to rotate in the opposite direction via the first lead screw nut 1805. Furthermore, the meshing of the first bevel gear 1806 and the second bevel gear 1807, as well as the first gear 1808 and the second gear 1810, drives the bidirectional lead screw 1809 to rotate. This, in turn, drives the second lead screw... The mother 1811 drives the silicone scraper 1801 to move back and forth, thereby using the cleaning groove 1802 to scrape away the dust and fine fibers on the discharge tooth 1503, so as to avoid affecting the normal discharge of the discharge tooth 1503. The bidirectional lead screw 1809 is divided into two sections by the second gear 1810, and the threads of the two sections are opposite. The second lead screw nuts 1811 on the two sets of silicone scrapers 1801 are respectively connected to the two sections of the bidirectional lead screw 1809. In this way, when the bidirectional lead screw 1809 rotates, it can drive the two sets of silicone scrapers 1801 to move towards each other or relative to each other at the same time.

[0027] Specifically, when an office monitor with automatic electrostatic dust removal needs dust removal, the linear infrared light source 3 on the dust self-detection device 2 first emits infrared light from bottom to top onto the surface of the LCD monitor 1. Then, the dust on the surface of the LCD monitor 1 reflects the infrared light downwards, so the infrared sensor 4 can receive the reflected infrared light and form an image. The image is then preprocessed, including noise reduction, contrast enhancement, and brightness adjustment, which helps improve the accuracy of subsequent processing steps. The image is then converted into a binary image. By setting an appropriate threshold, objects and backgrounds in the image are separated, which helps to highlight the location of dust. Morphological operations, such as dilation and erosion, are used to further process the binary image, filling holes and connecting adjacent dust areas. Then, connected regions in the binary image are identified and marked, with each region representing a possible dust point. Features such as area and center position are extracted from each connected region, which helps to further filter and identify real dust. Finally, based on the extracted features, the accurate location of each dust point is determined, and a control strategy for the servo motor 14 is formulated based on the dust location information to adjust the rotation angle of the duckbill air outlet 12.

[0028] While adjusting the rotation angle of the duckbill air outlet 12, the intake fan 9 pumps air into the gas delivery box 5, first cooling the heat sink 16, thus helping the heat sink 16 absorb the temperature of the monitor motherboard 17. Then, the hot air reaches the discharge comb 15 through the arc-shaped air guide tube 10. The first metal comb 1501 and the second metal comb 1502 of the discharge comb 15 are connected to the positive and negative terminals of the power supply, respectively. Thus, the electric field between the discharge teeth 1503 on the first metal comb 1501 and the discharge teeth 1503 on the second metal comb 1502 is amplified by the tip. Around the tip with a strong electric field, gas molecules can lose or gain electrons to form positive ions and free electrons, causing the surrounding gas molecules to ionize. The positive ions and free electrons generated by the ionization process form plasma containing positive and negative charges. The charged airflow blown onto the screen will neutralize the static electricity on the screen surface, eliminating static electricity and making the dust lose its charge attraction, making it easier to be blown away and removed by the airflow.

[0029] At the same time, the intake fan 9 can also reverse to draw air from the duckbill air outlet 12, causing charged air to flow in the opposite direction into the gas delivery box 5, clearing the static electricity accumulated on the heat sink 16 and preventing the static electricity accumulation on the heat sink 16 from damaging the monitor motherboard 17.

[0030] While the intake fan 9 rotates in both directions, the airflow pressure causes the airtight movable plate 1804 inside the discharge comb cleaning mechanism 18 to move up and down along the drive screw 1803. This causes the drive screw 1803 to rotate in the opposite direction via the first screw nut 1805. In turn, the meshing of the first bevel gear 1806 and the second bevel gear 1807, as well as the first gear 1808 and the second gear 1810, drives the bidirectional screw 1809 to rotate. This, in turn, causes the silicone scraper 1801 to move back and forth via the second screw nut 1811. This allows the cleaning groove 1802 to scrape away dust and fine fibers from the discharge teeth 1503, preventing them from affecting the normal discharge of the discharge teeth 1503.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An office display with automatic electrostatic dust removal, comprising a liquid crystal display (1), characterized in that: A dust self-inspection device (2) is provided at the bottom of the liquid crystal display (1), a linear infrared light source (3) is provided above the dust self-inspection device (2), and an infrared sensor (4) is provided on the dust self-inspection device (2). A gas delivery box (5) is fixedly connected to the back of the liquid crystal display (1) by bolts, and a folding bracket (6) is fixedly installed on the gas delivery box (5); An air intake fan (9) is provided on the gas delivery box (5). An arc-shaped air guide pipe (10) is connected to the upper end of the gas delivery box (5). An air guide groove (11) is opened at the upper end of the liquid crystal display (1). The arc-shaped air guide pipe (10) passes through the air guide groove (11). A duckbill air outlet (12) is provided at the end of the arc-shaped air guide pipe (10). A discharge comb (15) is provided at the end of the arc-shaped air guide pipe (10). A discharge comb cleaning mechanism (18) is provided on the outside of the discharge comb (15).

2. The office monitor with automatic electrostatic dust removal according to claim 1, characterized in that: The dust self-inspection device (2) is fixed in a long strip shape on the lower edge of the liquid crystal display (1). The linear infrared light source (3) above the dust self-inspection device (2) is a linear light source, and the light emission direction of the linear infrared light source (3) is close to and parallel to the surface glass of the liquid crystal display (1). The infrared sensor (4) is set at the center of the dust self-inspection device (2), and the lens of the infrared sensor (4) faces the screen glass of the liquid crystal display (1).

3. The office monitor with automatic electrostatic dust removal according to claim 1, characterized in that: The folding bracket (6) includes a first bracket (601) and a second bracket (602). The first bracket (601) and the second bracket (602) are movably connected by a rotating shaft (603). An arc-shaped bracket mounting groove (7) is provided on one side of the gas delivery box (5). Three bracket fixing pins (8) are provided in the bracket mounting groove (7). The gas delivery box (5) is fixedly connected to the folding bracket (6) through the bracket mounting groove (7) and the bracket fixing pins (8).

4. An office monitor with automatic electrostatic dust removal according to claim 1, characterized in that: The gas delivery box (5) is equipped with three sets of intake fans (9).

5. An office monitor with automatic electrostatic dust removal according to claim 1, characterized in that: The arc-shaped air guide pipe (10) is fixedly connected to a fixed exhaust pipe (13) at its end. The duckbill air outlet (12) is rotatably connected to the fixed exhaust pipe (13). A servo motor (14) is fixedly installed inside the fixed exhaust pipe (13). The end of the servo motor (14) is fixedly connected to the duckbill air outlet (12) through a keyway.

6. An office monitor with automatic electrostatic dust removal according to claim 7, characterized in that: The duckbill air outlet (12), fixed exhaust pipe (13) and servo motor (14) are each provided with three sets, and the openings of the three sets of duckbill air outlets (12) are all facing downwards.

7. An office monitor with automatic electrostatic dust removal according to claim 1, characterized in that: The discharge comb (15) includes a first metal comb (1501) and a second metal comb (1502). The first metal comb (1501) and the second metal comb (1502) are respectively connected to the positive and negative terminals of the power supply. The first metal comb (1501) and the second metal comb (1502) are both processed with dense discharge teeth (1503). The discharge teeth (1503) on the first metal comb (1501) and the discharge teeth (1503) on the second metal comb (1502) are opposite each other, and there is a gap between the discharge teeth (1503).

8. An office monitor with automatic electrostatic dust removal according to claim 1, characterized in that: A heat sink (16) is fixedly installed inside the gas delivery box (5). Heat sink fins are processed on both the inner and outer sides of the heat sink (16). A display motherboard (17) is fixedly installed inside the heat sink (16).

9. An office monitor with automatic electrostatic dust removal according to claim 7, characterized in that: The discharge comb cleaning mechanism (18) includes two sets of silicone scrapers (1801). Cleaning grooves (1802) are formed on the silicone scrapers (1801). The discharge teeth (1503) pass through the cleaning grooves (1802) on the silicone scrapers (1801), and the edges of the discharge teeth (1503) are in close contact with the inner edge of the cleaning grooves (1802). A drive screw (1803) is rotatably connected to the end of the arc-shaped air guide tube (10). An airtight movable plate (1804) passes through the drive screw (1803). The airtight movable plate (1804) is connected to the drive screw (1803) via a first screw nut (1805). The airtight movable plate (1804) provides resistance to... Airflow is circulated within the arc-shaped air guide pipe (10). One end of the drive screw (1803) is fixedly connected to a first bevel gear (1806), which meshes with a second bevel gear (1807). One end of the second bevel gear (1807) is fixedly connected to a first gear (1808). The end of the arc-shaped air guide pipe (10) is movably connected to a bidirectional screw (1809). The middle section of the bidirectional screw (1809) is fixedly connected to a second gear (1810). The bidirectional screw (1809) passes through both ends of the silicone scraper (1801), and the silicone scraper (1801) is connected to the bidirectional screw (1809) through a second screw nut (1811).

10. An office monitor with automatic electrostatic dust removal according to claim 9, characterized in that: The bidirectional lead screw (1809) is divided into two sections by the second gear (1810), and the threads of the two sections are opposite. The second lead screw nuts (1811) on the two sets of silicone scrapers (1801) are respectively connected to the two sections of the bidirectional lead screw (1809).

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