Intelligent fresh air system capable of actively eliminating static electricity and implementation method

Abstract

The invention discloses an intelligent fresh air system capable of actively eliminating static electricity and an implementation method, and belongs to the technical field of air conditioning, the intelligent fresh air system comprises an electric control MCU unit, and the electric control MCU unit is connected with a fresh air unit, a negative ion generation unit, an air outlet angle adjusting unit and a static electricity detection unit. The method has the following advantages that targets can be actively searched for to remove static electricity in a targeted mode according to the static electricity of the area, the size of the three-dimensional space of the static electricity removal enrichment area can be automatically calculated, the wind sweeping speed can be automatically set, and the power of the negative ion generator can be automatically adjusted according to the boundary dimensions of different electronic devices prone to generating static electricity; high-power and high-speed wind sweeping of large-size equipment is achieved, low-power and low-speed of small-size equipment is achieved, and energy conservation and efficiency are both considered.

Description

Technical Field

[0001] The present invention relates to an intelligent fresh air system for actively eliminating static electricity and an implementation method thereof, belonging to the technical field of air conditioning. Background Art

[0002] In a dry environment, static electricity is easily accumulated, which can interfere with the normal operation of the internal circuits of electronic equipment and break down the integrated circuits of electrical components, causing equipment short circuits or other failures.

[0003] For some special environments, such as key laboratories densely populated with electronic equipment and instruments, the air environment requires low humidity due to the sensitivity of the precision circuits inside the equipment and instruments to moisture. In a dry environment, static electricity will accumulate around the electronic equipment and instruments, posing a potential threat to equipment safety.

[0004] Scientific research has shown that the dry air around well-grounded electronic equipment carries positively charged static electricity. Therefore, a fresh air system with a negative ion generator can effectively neutralize and remove the static electricity around the electronic equipment. At the same time, the fresh air system replaces the indoor polluted air with fresh air from outdoors to ensure the health of people indoors.

[0005] The existing solution for removing static electricity from the ion generator of the fresh air system is to place a negative ion generator in front of the air outlet of the fresh air system. Fresh air containing negative ions enters the room to participate in air circulation. The air outlet is fixed or swings evenly without purpose, and the power of the negative ion generator cannot be adjusted.

[0006] According to industry standards, the air circulation time of a standard fresh air system is about half an hour, and the life cycle of negative ions is generally only a few minutes. However, the fresh air outlets of existing technologies are fixed or swing evenly without purpose, and cannot actively find the target, resulting in the following problems: 1. Static electricity accumulation areas cannot effectively remove static electricity: The area where electronic equipment is placed is an area rich in static electricity. It takes about half an hour for the fresh air to circulate completely. Since the life cycle of negative ions is limited, most of the negative ions have lost their activity by the time the fresh air reaches the area where electronic equipment is placed, and static electricity cannot be effectively removed.

[0007] 2. Failure to eliminate sudden static electricity rise in time: For the sudden increase in static electricity caused by changes in the working state of electronic equipment, such as when an electronic device switches from low power to high power, the static electricity around it suddenly increases sharply in a short period of time. The existing technology cannot handle this emergency in time, resulting in one or more electronic devices having high-potential static electricity, threatening the safety of the equipment.

[0008] 3. The static electricity removal power is not matched The existing anti-static equipment does not have the ability to actively adjust power to adapt to different levels of static electricity and different sizes of static electricity spaces, resulting in energy waste and poor anti-static effect. Summary of the invention

[0009] The technical problem to be solved by the present invention is to provide an intelligent fresh air system and an implementation method for actively eliminating static electricity in response to the above shortcomings. The system can actively find targets to remove static electricity according to the level of static electricity in the area, and can automatically calculate the size of the three-dimensional space for removing static electricity-enriched areas according to the dimensions of different electronic devices that are prone to generating static electricity, automatically set the wind sweeping speed, and automatically adjust the power size of the negative ion generating unit, so as to achieve high-power and high-speed wind sweeping for large-size equipment and low-power and low-speed for small-size equipment, taking into account both energy saving and efficiency.

[0010] In order to solve the above technical problems, the present invention adopts the following technical solutions: An intelligent fresh air system for actively eliminating static electricity includes an electronic control MCU unit, wherein the electronic control MCU unit is connected to a fresh air unit, a negative ion generating unit, an air outlet angle adjusting unit and a static electricity detecting unit; The electrostatic detection unit includes several fixed area electrostatic testers and a movable infrared remote electrostatic tester. The fixed area electrostatic testers are installed in the electrostatic enrichment area to monitor the sudden increase of electrostatic potential; the movable infrared remote electrostatic tester is installed at the air outlet to monitor the electrostatic potential of the electronic equipment and instrument placement area and assist the electronic control MCU unit to calculate the three-dimensional space size of the electrostatic enrichment area.

[0011] The function of the fresh air unit is to circulate and replace outdoor fresh air with indoor turbid air under the drive of the circulating fan; The function of the negative ion generating unit is to generate negative ions, which enter the room through the fresh air unit to neutralize static electricity; The air outlet angle adjustment unit includes an air outlet equipped with a fan-shaped guide plate, the inclination angle of the guide plate does not exceed 5 degrees, and the air outlet angle is adjusted up, down, left, and right by a servo motor; The function of the electronic control MCU unit is to monitor the electrostatic potential value of each area, dynamically adjust the power of the negative ion generating unit, and automatically calculate the servo motor pulse value corresponding to the three-dimensional size of the electrostatic space of the electronic equipment through a movable infrared remote electrostatic tester. The electronic control MCU unit sends a pulse signal to the servo motor to adjust the angle of the air outlet to accurately align with the electrostatic enrichment area.

[0012] Furthermore, the air outlet angle adjustment unit includes a transverse servo motor and a longitudinal servo motor. The horizontal angle of the air outlet is adjusted by the transverse servo motor with an adjustment range of 90 degrees. The fresh air can be swept horizontally to cover the entire left and right range of the laboratory; the vertical angle of the air outlet is adjusted by the longitudinal servo motor with an adjustment range of 90 degrees. The fresh air unit can sweep vertically to cover the entire upper and lower range of the laboratory.

[0013] Furthermore, the regional electrostatic tester communicates with the electronic control MCU unit wirelessly, and the electronic control MCU unit can receive and monitor the electrostatic potential value of each area in real time. Furthermore, the testing direction of the infrared remote electrostatic tester is coaxial with the blowing direction of the air outlet, and the infrared remote electrostatic tester moves together with the air outlet.

[0014] A method for implementing an intelligent fresh air system for actively eliminating static electricity includes two working modes, namely, a sudden static electricity removal mode and a regular static electricity removal mode. The electronic control MCU unit selects the sudden static electricity removal mode or the regular static electricity removal mode to work according to the static electricity enrichment situation. The sudden static electricity removal mode is when the static electricity potential of a static electricity-enriched area suddenly rises. The electronic control MCU unit monitors that the static electricity potential of the static electricity-enriched area is higher than the parameter preset value, drives the servo motor, and automatically adjusts the air outlet angle to blow concentrated air to the high-potential area, removes static electricity from the area rich in negative ions, and reduces the static electricity potential below the safety threshold; The conventional static electricity removal mode is that when the static electricity potential values ​​in each static electricity-enriched area are temporarily lower than the safety threshold, in order to prevent static electricity accumulation, the electronic control MCU unit drives the servo motor to adjust the air outlet angle to blow negative ion wind in turn to the electronic equipment placement area in the laboratory to keep the static electricity potential at a low level.

[0015] Furthermore, the implementation method specifically includes the following steps: Step 1, obtain the pulse range of the electrostatic enrichment area of ​​each device: Set the safety threshold U0 and danger threshold Ud of static electricity, define a space range for removing static electricity for each static electricity enrichment area, the electronic control MCU unit sends pulses to the servo motor, drives the air outlet to move left and right and up and down with the center of the static electricity enrichment area, and the electronic control MCU unit obtains the static electricity position value tested by the infrared remote static electricity tester coaxial with the air outlet. When the air outlet moves to the left end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Xa; when the air outlet moves to the right end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Xb; when the air outlet moves to the upper end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Ya; when the air outlet moves to the lower end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Yb, so the pulse range of the static electricity enrichment area is (Pulse_Xa, Pulse_Xb), (Pulse_Ya, Pulse_Yb); The lateral angle range (θa, θb) of the air outlet corresponds to the lateral servo motor pulse range (Pulse_Xa, Pulse_Xb). When the electronic control MCU unit sends a pulse value Pulse_Xa to the lateral servo motor, the lateral angle of the air outlet will move to the leftmost end θa. When the electronic control MCU unit sends a pulse value Pulse_Xb to the lateral servo motor, the lateral angle of the air outlet will move to the rightmost end θb. The longitudinal angle range (βa, βb) of the air outlet corresponds to the longitudinal servo motor pulse range (Pulse_Ya, Pulse_Yb). When the electronic control MCU unit sends a pulse value Pulse_Ya to the transverse servo motor, the transverse angle of the air outlet will move to the uppermost end βa. When the electronic control MCU unit sends a pulse value Pulse_Yb to the transverse servo motor, the transverse angle of the air outlet will move to the lowermost end βb.

[0016] Furthermore, the implementation method further includes the following steps: Step 2: Use the conventional static electricity removal mode to sweep the air: The electronic control MCU unit obtains the electrostatic potential U1 measured by the regional electrostatic tester in each electrostatic enrichment area. When the electrostatic potential U1 of all electrostatic enrichment areas is greater than the safety threshold U0 and less than the danger threshold Ud, the electronic control MCU unit sends a pulse. Relying on the left and right range and the upper and lower range of the electrostatic enrichment area obtained by the infrared remote electrostatic tester, the lateral servo motor pulse range (Pulse_Xa, Pulse_Xb) of the air outlet and the longitudinal servo motor pulse range (Pulse_Ya, Pulse_Yb) of the air outlet can be obtained. According to the pulse range, the air outlet can adjust the angle to sweep air to the electrostatic enrichment area.

[0017] Furthermore, the wind sweeping method in step 2 is to first execute the lateral servo motor pulse Pulse_Xa and the longitudinal servo motor pulse Pulse_Ya; Then, left and right folding is adopted, that is, the pulse of the longitudinal servo motor remains unchanged, the pulse of the transverse servo motor is increased to Pulse_Xb and then decreased and folded back, and at the same time, the pulse of the longitudinal servo motor is increased by a fixed value; Or use up and down return, that is, the horizontal servo motor pulse remains unchanged, the longitudinal servo motor pulse increases to Pulse_Yb and then decreases and returns, and at the same time the horizontal servo motor pulse increases a fixed value; The air sweeping speed and the value of the incremental pulses are set to complete a sweeping cycle in the shortest possible time, and each static-prone area is blown in turn until the static electricity level is significantly reduced; The time to complete an area sweeping cycle is controlled within 30 seconds. In areas with a large range, the angular velocity of the sweeping air is larger, and in areas with a small range, the angular velocity is smaller. The angular velocity value is automatically generated by the electronic control MCU unit according to the angle difference of each range.

[0018] Furthermore, the implementation method further includes the following steps: Step 3: Use the sudden static elimination mode to sweep the air: The electronic control MCU unit obtains the static electricity potential U1 measured by the regional static electricity tester in each static electricity-enriched area. When the static electricity potential U1 in a static electricity-enriched area reaches the dangerous threshold Ud, the fresh air system enters the sudden static electricity removal mode. The electronic control MCU unit controls the servo motor to adjust the air outlet according to the preset pulse of the static electricity-enriched area, and preferentially sweeps air to the static electricity-enriched area to reduce the static electricity potential in the static electricity-enriched area.

[0019] Furthermore, the implementation method further includes the following steps: Step 4, negative ion generating unit power adjustment: Since the size and electrostatic potential of each electrostatic enrichment area are different, in order to save energy and take into account the efficiency of static electricity removal, it is necessary to dynamically adjust the power of the negative ion generating unit; Designate a standard area in the laboratory, and assume that its space is A cubic meters. The electrostatic potential in the standard area is B volts higher than the safety threshold U0. After power calibration and 30 seconds of negative ion blowing, the electrostatic potential in the standard area is reduced to the safety threshold U0. Then the power reference value of the negative ion generating unit P= A*B. For another static-enriched area, the space is C cubic meters. The electrostatic potential in the static-enriched area is D volts higher than the safety threshold U0. The power adjustment ratio of the negative ion generating unit is Pn= (C*D) / (A*B).

[0020] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art: It can proactively find targets to remove static electricity based on the level of static electricity in the area, and can automatically calculate the size of the three-dimensional space to remove static electricity-enriched areas based on the dimensions of different electronic equipment that are prone to generating static electricity, automatically set the wind sweeping speed, and automatically adjust the power of the negative ion generating unit, to achieve high-power and high-speed wind sweeping for large-sized equipment and low-power and low-speed for small-sized equipment, taking into account both energy saving and efficiency.

[0021] 1. Effectively remove static electricity in static electricity-enriched areas; According to the static electricity generation in different areas of the laboratory, several static electricity enrichment areas can be preset, and the air outlet angle can be automatically adjusted to focus the air on these areas. The fresh air containing negative ions will cover the static electricity enrichment areas within a life cycle of several minutes to neutralize the static electricity.

[0022] 2. Eliminate sudden static electricity potential increase in time; Through static potential monitoring in areas prone to static electricity, the air outlet angle is automatically adjusted to concentrate air on the high-potential area when people are active (friction between clothes and sofa when sitting on the sofa, dressing and undressing in the changing area, etc.), forming an area rich in negative ion air. When people leave this area, the negative ion air group surrounds the human body within a few seconds to eliminate static electricity, thus preventing people from moving to other areas with static electricity and causing discharge.

[0023] 3. Take into account both energy saving and static removal efficiency By monitoring the static potential in areas prone to static electricity, when the static potential is high, the power of the negative ion generating unit is increased proportionally; when the static potential is low, the power of the negative ion generating unit is reduced proportionally; when the static electricity enrichment area is large, the power of the negative ion generating unit is increased proportionally; when the static electricity enrichment area is small, the power of the negative ion generating unit is reduced proportionally, taking into account both energy saving and static electricity removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0025] Figure 1 It is a structural block diagram of the intelligent fresh air system in the present invention; Figure 2 This is a schematic diagram of the left and right adjustment range of the air outlet in the present invention; Figure 3 It is a schematic diagram of the upper and lower adjustment range of the air outlet in the present invention. DETAILED DESCRIPTION

[0026] Examples, such as Figure 1 As shown, an intelligent fresh air system for actively eliminating static electricity includes an electronic control MCU unit, which is connected to a fresh air unit, a negative ion generating unit, an air outlet angle adjustment unit and a static electricity detection unit.

[0027] The function of the fresh air unit is to circulate and replace outdoor fresh air and indoor turbid air under the drive of the circulating fan.

[0028] The function of the negative ion generating unit is to generate negative ions, which enter the room through the fresh air unit to neutralize static electricity. The power of the negative ion generating unit can be dynamically adjusted according to the size of the three-dimensional space in each area, while quickly eliminating static electricity, ensuring that the negative ion concentration is not too high.

[0029] The air outlet angle adjustment unit is equipped with a servo motor, which adjusts the air outlet angle up, down, left, and right, so that air can be blown to any position in the room.

[0030] The electrostatic detection unit includes several fixed area electrostatic testers and a movable infrared remote electrostatic tester. The fixed area electrostatic testers are installed in the electrostatic enrichment area to monitor the sudden increase of electrostatic potential; the movable infrared remote electrostatic tester is installed at the air outlet to monitor the electrostatic potential of the electronic equipment and instrument placement area and assist the electronic control MCU unit to calculate the three-dimensional space size of the electrostatic enrichment area.

[0031] The function of the electronic control MCU unit is to monitor the electrostatic potential value of each area, dynamically adjust the power of the negative ion generating unit, and automatically calculate the servo motor pulse value corresponding to the three-dimensional size of the electrostatic space of the electronic equipment through a movable infrared remote electrostatic tester. The electronic control MCU unit sends a pulse signal to the servo motor to adjust the angle of the air outlet to accurately align with the electrostatic enrichment area.

[0032] The intelligent fresh air system for actively eliminating static electricity involved in the present invention is installed in a closed electronic laboratory room with limited space (hereinafter referred to as the laboratory). The fan output power and the size of the air outlet are reasonably designed according to the size of the laboratory space. The fresh air completes a ventilation cycle in half an hour.

[0033] The designed speed of the circulating fan motor of the fresh air unit ensures that the fresh air reaches the farthest end of the laboratory from the air outlet in no more than 30 seconds.

[0034] In order to ensure the negative ion content at the farthest end, the fan-shaped inclination angle of the air outlet guide plate does not exceed 5 degrees, ensuring that the fresh air reaches the farthest end and the radial diffusion range of the wind column does not exceed 20%.

[0035] The air outlet angle adjustment unit includes a transverse servo motor and a longitudinal servo motor. The horizontal angle of the air outlet is adjusted by the transverse servo motor, and the adjustment range is 90 degrees. The fresh air can be swept horizontally to cover the entire left and right range of the laboratory.

[0036] The vertical angle of the air outlet is adjusted by a longitudinal servo motor with an adjustment range of 90 degrees. The fresh air unit can sweep air longitudinally to cover the entire upper and lower range of the laboratory.

[0037] The laboratory is equipped with multiple fixed electronic devices to form multiple electrostatic enrichment areas. Each electronic device is equipped with a regional electrostatic tester. Through wireless communication, the electronic control MCU unit can receive and monitor the electrostatic potential value of each area in real time.

[0038] An infrared remote electrostatic tester is installed at the air outlet. The test direction of the tester is coaxial with the blowing direction of the air outlet, and the infrared remote electrostatic tester moves together with the air outlet.

[0039] A method for implementing an intelligent fresh air system that actively eliminates static electricity includes two working modes: Sudden static electricity removal mode: When the static electricity potential in a static electricity-enriched area suddenly increases (for example, an electronic device switches from low power to high power), the electronic control MCU unit monitors that the static electricity potential in the static electricity-enriched area is higher than the parameter preset value, drives the servo motor, and automatically adjusts the air outlet angle to concentrate air on the high-potential area, forming an air area rich in negative ions to remove static electricity and reduce the static electricity potential below the safety threshold.

[0040] Conventional static electricity removal mode: When the static electricity level in each static electricity-enriched area is temporarily lower than the safety threshold, in order to prevent static electricity accumulation, the electronic control MCU unit drives the servo motor to adjust the air outlet angle to blow negative ion wind in the electronic equipment placement area in the laboratory in turn to keep the static electricity level at a low level.

[0041] The implementation method specifically includes the following steps: Step 1, obtain the pulse range of the electrostatic enrichment area of ​​each device: The safety threshold U0 and danger threshold Ud of static electricity are set, and a space range for removing static electricity is defined for each static electricity enrichment area. The electronic control MCU unit sends pulses to the servo motor to drive the air outlet to move left, right, up and down with the center of the static electricity enrichment area. The electronic control MCU unit obtains the static electricity position value tested by the infrared remote static electricity tester coaxial with the air outlet. When the air outlet moves to the left end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, the pulse value Pulse_Xa is recorded; when the air outlet moves to the right end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, the pulse value Pulse_Xb is recorded; when the air outlet moves to the upper end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, the pulse value Pulse_Ya is recorded; when the air outlet moves to the lower end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, the pulse value Pulse_Yb is recorded, so the pulse range of the static electricity enrichment area is (Pulse_Xa, Pulse_Xb), (Pulse_Ya, Pulse_Yb).

[0042] like Figure 2 As shown, the lateral angle range of the air outlet (θa, θb) corresponds to the lateral servo motor pulse range (Pulse_Xa, Pulse_Xb). When the electronic control MCU unit sends a pulse value Pulse_Xa to the lateral servo motor, the lateral angle of the air outlet will move to the leftmost end θa. When the electronic control MCU unit sends a pulse value Pulse_Xb to the lateral servo motor, the lateral angle of the air outlet will move to the rightmost end θb.

[0043] like Figure 3 As shown, the longitudinal angle range of the air outlet (βa, βb) corresponds to the longitudinal servo motor pulse range (Pulse_Ya, Pulse_Yb). When the electronic control MCU unit sends a pulse value Pulse_Ya to the transverse servo motor, the transverse angle of the air outlet will move to the uppermost end βa. When the electronic control MCU unit sends a pulse value Pulse_Yb to the transverse servo motor, the transverse angle of the air outlet will move to the lowermost end βb.

[0044] According to the above method of demarcating the electrostatic enrichment area, the upper, lower, left and right spaces of the electrostatic enrichment area are converted into outlet motor pulses. If the laboratory is divided into n electrostatic enrichment areas, the electronic control MCU unit records n lateral servo motor pulse ranges: (Pulse_Xa1, Pulse_Xb1), (Pulse_Xa2, Pulse_Xb2)...(Pulse_Xan, Pulse_Xbn) and n longitudinal servo motor pulse ranges (Pulse_Ya1, Pulse_Yb1), (Pulse_Ya2, Pulse_Yb2)...(Pulse_Yan, Pulse_Ybn).

[0045] Step 2: Use the conventional static electricity removal mode to sweep the air: The electronic control MCU unit obtains the electrostatic potential U1 measured by the regional electrostatic tester in each electrostatic enrichment area. When the electrostatic potential U1 of all electrostatic enrichment areas is greater than the safety threshold U0 and less than the danger threshold Ud, the electronic control MCU unit sends a pulse. Relying on the left and right range and the upper and lower range of the electrostatic enrichment area obtained by the infrared remote electrostatic tester, the lateral servo motor pulse range (Pulse_Xa, Pulse_Xb) of the air outlet and the longitudinal servo motor pulse range (Pulse_Ya, Pulse_Yb) of the air outlet can be obtained. According to the pulse range, the air outlet can adjust the angle to sweep air to the electrostatic enrichment area.

[0046] The wind sweeping mode first executes the lateral servo motor pulse Pulse_Xa and the longitudinal servo motor pulse Pulse_Ya, and then adopts left-right return, that is, the longitudinal servo motor pulse remains unchanged, the lateral servo motor pulse is increased to Pulse_Xb and then decreased and returned, and the longitudinal servo motor pulse is increased by a fixed value; or the up-down return mode, that is, the lateral servo motor pulse remains unchanged, the longitudinal servo motor pulse is increased to Pulse_Yb and then decreased and returned, and the lateral servo motor pulse is increased by a fixed value. The wind sweeping speed and the value of the incremental pulse are used to complete a wind sweeping cycle in the shortest time, and each static-prone area is blown in turn until the static electricity level is significantly reduced, thereby achieving the effect of preventing static electricity accumulation.

[0047] The time to complete an area sweeping cycle is controlled within 30 seconds. In areas with a large range, the angular velocity of the sweeping air is larger, and in areas with a small range, the angular velocity is smaller. The angular velocity value is automatically generated by the electronic control MCU unit according to the angle difference of each range.

[0048] Step 3: Use the sudden static elimination mode to sweep the air: The electronic control MCU unit obtains the static electricity potential U1 measured by the regional static electricity tester in each static electricity-enriched area. When the static electricity potential U1 in a static electricity-enriched area reaches the dangerous threshold Ud (for example, 1500 volts), the fresh air system enters the sudden static electricity removal mode. The electronic control MCU unit controls the servo motor to adjust the air outlet according to the preset pulse of the static electricity-enriched area, and preferentially sweeps air to the static electricity-enriched area to reduce the static electricity potential in the static electricity-enriched area.

[0049] Step 4, negative ion generating unit power adjustment: Because the spatial range and electrostatic potential of each electrostatic enrichment area are different, in order to save electricity and take into account the static electricity removal efficiency, it is necessary to dynamically adjust the power of the negative ion generating unit.

[0050] Designate a standard area in the laboratory, and assume that its space is A cubic meters. The electrostatic potential in the standard area is B volts higher than the safety threshold U0. After power calibration and 30 seconds of negative ion blowing, the electrostatic potential in the standard area is reduced to the safety threshold U0. Then the power reference value of the negative ion generating unit P= A*B. For another static-enriched area, the space is C cubic meters. The electrostatic potential in the static-enriched area is D volts higher than the safety threshold U0. The power adjustment ratio of the negative ion generating unit is Pn= (C*D) / (A*B).

[0051] Step 2 and step 3 are executed in no particular order, and are selected according to the electrostatic enrichment situation in the laboratory. Step 4 is executed simultaneously between step 2 and step 3.

[0052] The description of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for particular uses.

Claims

1. An intelligent fresh air system that actively eliminates static electricity, characterized by: It includes an electronic control MCU unit, which is connected to a fresh air unit, a negative ion generating unit, an air outlet angle adjusting unit and an electrostatic detection unit; The electrostatic detection unit includes several fixed regional electrostatic testers and a movable infrared remote electrostatic tester. The fixed regional electrostatic testers are installed in the electrostatic enrichment area to monitor the sudden increase of electrostatic potential; the movable infrared remote electrostatic tester is installed at the air outlet to monitor the electrostatic potential of the electronic equipment and instrument placement area and assist the electronic control MCU unit to calculate the three-dimensional space size of the electrostatic enrichment area; The function of the fresh air unit is to circulate and replace outdoor fresh air with indoor turbid air under the drive of the circulating fan; The function of the negative ion generating unit is to generate negative ions, which enter the room through the fresh air unit to neutralize static electricity; The air outlet angle adjustment unit includes an air outlet equipped with a fan-shaped guide plate, the inclination angle of the guide plate does not exceed 5 degrees, and the air outlet angle is adjusted up, down, left, and right by a servo motor; The function of the electronic control MCU unit is to monitor the electrostatic potential value of each area, dynamically adjust the power of the negative ion generating unit, and automatically calculate the servo motor pulse value corresponding to the three-dimensional size of the electrostatic space of the electronic equipment through a movable infrared remote electrostatic tester. The electronic control MCU unit sends a pulse signal to the servo motor to adjust the angle of the air outlet to accurately align with the electrostatic enrichment area.

2. The intelligent fresh air system for actively eliminating static electricity according to claim 1, characterized in that: The air outlet angle adjustment unit includes a transverse servo motor and a longitudinal servo motor. The horizontal angle of the air outlet is adjusted by the transverse servo motor with an adjustment range of 90 degrees. The fresh air can be swept horizontally to cover the entire left and right range of the laboratory; the vertical angle of the air outlet is adjusted by the longitudinal servo motor with an adjustment range of 90 degrees. The fresh air unit can sweep vertically to cover the entire upper and lower range of the laboratory.

3. The intelligent fresh air system for actively eliminating static electricity according to claim 1, characterized in that: The regional electrostatic tester communicates with the electronic control MCU unit wirelessly, and the electronic control MCU unit can receive and monitor the electrostatic potential value of each area in real time.

4. The intelligent fresh air system for actively eliminating static electricity according to claim 1, characterized in that: The testing direction of the infrared remote electrostatic tester is coaxial with the blowing direction of the air outlet, and the infrared remote electrostatic tester moves together with the air outlet.

5. A method for implementing an intelligent fresh air system that actively eliminates static electricity, characterized in that: The implementation method is applied to the intelligent fresh air system for active static elimination as claimed in any one of claims 1 to 4, and the implementation method includes two working modes, namely, a sudden static elimination mode and a conventional static elimination mode, and the electronic control MCU unit selects the sudden static elimination mode or the conventional static elimination mode to work according to the static enrichment situation; The sudden static electricity removal mode is when the static electricity potential of a static electricity-enriched area suddenly rises. The electronic control MCU unit monitors that the static electricity potential of the static electricity-enriched area is higher than the parameter preset value, drives the servo motor, and automatically adjusts the air outlet angle to blow concentrated air to the high-potential area, removes static electricity from the area rich in negative ions, and reduces the static electricity potential below the safety threshold; The conventional static electricity removal mode is that when the static electricity potential values ​​in each static electricity-enriched area are temporarily lower than the safety threshold, in order to prevent static electricity accumulation, the electronic control MCU unit drives the servo motor to adjust the air outlet angle to blow negative ion wind in turn to the electronic equipment placement area in the laboratory to keep the static electricity potential at a low level.

6. The method for implementing an intelligent fresh air system for actively eliminating static electricity according to claim 5, characterized in that: The implementation method specifically includes the following steps: Step 1, obtain the pulse range of the electrostatic enrichment area of ​​each device: Set the safety threshold U0 and danger threshold Ud of static electricity, define a space range for removing static electricity for each static electricity enrichment area, the electronic control MCU unit sends pulses to the servo motor, drives the air outlet to move left and right and up and down with the center of the static electricity enrichment area, and the electronic control MCU unit obtains the static electricity position value tested by the infrared remote static electricity tester coaxial with the air outlet. When the air outlet moves to the left end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Xa; when the air outlet moves to the right end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Xb; when the air outlet moves to the upper end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Ya; when the air outlet moves to the lower end and the test value of the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Yb, so the pulse range of the static electricity enrichment area is (Pulse_Xa, Pulse_Xb), (Pulse_Ya, Pulse_Yb); The lateral angle range (θa, θb) of the air outlet corresponds to the lateral servo motor pulse range (Pulse_Xa, Pulse_Xb). When the electronic control MCU unit sends a pulse value Pulse_Xa to the lateral servo motor, the lateral angle of the air outlet will move to the leftmost end θa. When the electronic control MCU unit sends a pulse value Pulse_Xb to the lateral servo motor, the lateral angle of the air outlet will move to the rightmost end θb. The longitudinal angle range (βa, βb) of the air outlet corresponds to the longitudinal servo motor pulse range (Pulse_Ya, Pulse_Yb). When the electronic control MCU unit sends a pulse value Pulse_Ya to the transverse servo motor, the transverse angle of the air outlet will move to the uppermost end βa. When the electronic control MCU unit sends a pulse value Pulse_Yb to the transverse servo motor, the transverse angle of the air outlet will move to the lowermost end βb.

7. The method for implementing an intelligent fresh air system for actively eliminating static electricity according to claim 6, characterized in that: The implementation method specifically also includes the following steps: Step 2: Use the conventional static electricity removal mode to sweep the air: The electronic control MCU unit obtains the electrostatic potential U1 measured by the regional electrostatic tester in each electrostatic enrichment area. When the electrostatic potential U1 of all electrostatic enrichment areas is greater than the safety threshold U0 and less than the danger threshold Ud, the electronic control MCU unit sends a pulse. Relying on the left and right range and the upper and lower range of the electrostatic enrichment area obtained by the infrared remote electrostatic tester, the lateral servo motor pulse range (Pulse_Xa, Pulse_Xb) of the air outlet and the longitudinal servo motor pulse range (Pulse_Ya, Pulse_Yb) of the air outlet can be obtained. According to the pulse range, the air outlet can adjust the angle to sweep air to the electrostatic enrichment area.

8. The method for implementing an intelligent fresh air system for actively eliminating static electricity according to claim 7, characterized in that: The wind sweeping method in step 2 is to first execute the horizontal servo motor pulse Pulse_Xa and the longitudinal servo motor pulse Pulse_Ya; Then, left and right folding is adopted, that is, the pulse of the longitudinal servo motor remains unchanged, the pulse of the transverse servo motor is increased to Pulse_Xb and then decreased and folded back, and at the same time, the pulse of the longitudinal servo motor is increased by a fixed value; Or use up and down return, that is, the horizontal servo motor pulse remains unchanged, the longitudinal servo motor pulse increases to Pulse_Yb and then decreases and returns, and at the same time the horizontal servo motor pulse increases a fixed value; The air sweeping speed and the value of the incremental pulses are set to complete a sweeping cycle in the shortest possible time, and each static-prone area is blown in turn until the static electricity level is significantly reduced; The time to complete an area sweeping cycle is controlled within 30 seconds. In areas with a large range, the angular velocity of the sweeping air is larger, and in areas with a small range, the angular velocity is smaller. The angular velocity value is automatically generated by the electronic control MCU unit according to the angle difference of each range.

9. The method for implementing an intelligent fresh air system for actively eliminating static electricity according to claim 6, characterized in that: The implementation method specifically also includes the following steps: Step 3: Use the sudden static elimination mode to sweep the air: The electronic control MCU unit obtains the static electricity potential U1 measured by the regional static electricity tester in each static electricity-enriched area. When the static electricity potential U1 in a static electricity-enriched area reaches the dangerous threshold Ud, the fresh air system enters the sudden static electricity removal mode. The electronic control MCU unit controls the servo motor to adjust the air outlet according to the preset pulse of the static electricity-enriched area, and preferentially sweeps air to the static electricity-enriched area to reduce the static electricity potential in the static electricity-enriched area.

10. The method for implementing an intelligent fresh air system for actively eliminating static electricity according to claim 6, characterized in that: The implementation method specifically also includes the following steps: Step 4, negative ion generating unit power adjustment: Since the size and electrostatic potential of each electrostatic enrichment area are different, in order to save energy and take into account the efficiency of static electricity removal, it is necessary to dynamically adjust the power of the negative ion generating unit; Designate a standard area in the laboratory, and assume that its space is A cubic meters. The electrostatic potential in the standard area is B volts higher than the safety threshold U0. After power calibration and 30 seconds of negative ion blowing, the electrostatic potential in the standard area is reduced to the safety threshold U0. Then the power reference value of the negative ion generating unit P= A*B. For another static-enriched area, the space is C cubic meters. The electrostatic potential in the static-enriched area is D volts higher than the safety threshold U0. The power adjustment ratio of the negative ion generating unit is Pn= (C*D) / (A*B).

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