An intelligent fresh air system for actively eliminating static electricity and its implementation method

Abstract

The present application discloses an intelligent fresh air system for actively eliminating static electricity and an implementation method, belonging to the technical field of air conditioning. It includes an electronic control MCU unit, which is connected to a fresh air unit, a negative ion generation unit, an air outlet angle adjustment unit, and a static electricity detection unit. It has the following advantages: It can actively search for targets to remove static electricity according to the static electricity level in the area, and can automatically calculate the three-dimensional space size of the static electricity enrichment area to be removed according to the external dimensions of different electronic devices that are prone to generating static electricity, automatically set the air sweeping speed, and automatically adjust the power of the negative ion generator, achieving high-power and high-speed air sweeping for large-sized devices and low-power and low-speed air sweeping for small-sized devices, taking into account energy conservation and efficiency.

Description

Technical Field

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

[0002] In a dry environment, static electricity is likely to accumulate. Static electricity can interfere with the normal operation of the internal circuits of electronic devices 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 devices and instruments, due to the sensitivity of the precision circuits inside the devices and instruments to moisture, the air environment requires low humidity. In a dry environment, static electricity will accumulate around the electronic devices and instruments, posing a potential threat to equipment safety.

[0004] Scientific research shows that the dry air around well-grounded electronic devices carries positive charge static electricity. Therefore, through a fresh air system with a negative ion generating device, the static electricity around the electronic devices can be effectively neutralized and removed. At the same time, the fresh air system replaces the indoor polluted air with outdoor fresh air to ensure the physical health of indoor personnel.

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

[0006] According to the requirements of industry standards, the primary 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 existing fresh air outlet is fixed or swings evenly without a purpose and cannot actively find the target, resulting in the following problems:

[0007] 1. Static electricity in the static electricity enrichment area cannot be effectively removed:

[0008] The area where electronic devices are placed is a static electricity enrichment area. It takes about half an hour for all the fresh air to circulate once. Due to the limited life cycle of negative ions, by the time the fresh air reaches the area where electronic devices are placed, most of the negative ions have lost their activity and cannot effectively remove static electricity.

[0009] 2. Sudden increases in static electricity cannot be eliminated in time:

[0010] For a sudden increase in static potential caused by a change in the working state of an electronic device, such as when an electronic device switches from low power to high power, the static potential around it suddenly rises sharply in a short period of time. The existing technology cannot handle this sudden event in time, resulting in one or more electronic devices carrying high-potential static electricity, threatening equipment safety.

[0011] 3. Incompatible static elimination power

[0012] The existing static elimination equipment does not have the function of actively adjusting the power to adapt to different levels of static electricity and different sizes of static electricity spaces, resulting in waste of energy and poor static elimination effect. Summary of the Invention

[0013] The technical problem to be solved by the present invention is to provide an intelligent fresh air system and its implementation method for actively eliminating static electricity. It can actively search for targets to remove static electricity according to the level of static electricity in the area, and can automatically calculate the three-dimensional space size of the static electricity enrichment area according to the external dimensions of different electronic devices prone to static electricity, automatically set the air sweeping speed, and automatically adjust the power of the negative ion generation unit, so as to achieve high power and high speed air sweeping for large-sized devices and low power and low speed for small-sized devices, taking into account energy conservation and efficiency.

[0014] To solve the above technical problems, the present invention adopts the following technical solutions:

[0015] An intelligent fresh air system for actively eliminating static electricity, including an electronic control MCU unit, which is connected to a fresh air unit, a negative ion generation unit, an air outlet angle adjustment unit, and a static electricity detection unit;

[0016] The static electricity detection unit includes several fixed regional static electricity testers and a movable infrared remote static electricity tester. The fixed regional static electricity testers are installed in the static electricity enrichment area to monitor the sudden increase in static electricity potential; the movable infrared remote static electricity tester is installed at the air outlet to monitor the static electricity potential in the area where electronic devices and instruments are placed and assist the electronic control MCU unit to calculate the three-dimensional space size of the static electricity enrichment area.

[0017] The function of the fresh air unit is to circulate and replace outdoor fresh air and indoor turbid air under the drive of a circulation fan;

[0018] The function of the negative ion generation unit is to generate negative ions, and the negative ions enter the room through the fresh air unit to neutralize static electricity;

[0019] The air outlet angle adjustment unit includes an air outlet installed with a sector-shaped deflector, and the inclination angle of the deflector does not exceed 5 degrees. The air outlet angle is adjusted up, down, left, and right by a servo motor;

[0020] The function of the electronic control MCU unit is to monitor the static electricity potential values in each area, dynamically adjust the power of the negative ion generation unit, and can automatically calculate the servo motor pulse value corresponding to the three-dimensional size of the electronic device static electricity space through the movable infrared remote static electricity 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 static electricity enrichment area.

[0021] Further, the air outlet angle adjustment unit includes a horizontal servo motor and a vertical servo motor. The horizontal angle of the air outlet is adjusted by the horizontal servo motor, and the adjustment range is 90 degrees. The fresh air can sweep horizontally to cover the left and right ranges of the entire laboratory. The vertical angle of the air outlet is adjusted by the vertical servo motor, and the adjustment range is 90 degrees. The fresh air unit can sweep vertically to cover the upper and lower ranges of the entire laboratory.

[0022] Further, the area electrostatic tester communicates with the electronic control MCU unit wirelessly, and the electronic control MCU unit can receive and monitor the electrostatic potential values of each area in real time.

[0023] Further, the test 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.

[0024] A method for implementing an intelligent fresh air system for actively eliminating static electricity includes two working modes, namely, the sudden static electricity elimination mode and the conventional static electricity elimination mode. The electronic control MCU unit selects the sudden static electricity elimination mode or the conventional static electricity elimination mode to work according to the static electricity enrichment situation.

[0025] In the sudden static electricity elimination mode, for the situation where the electrostatic potential of a certain static electricity enrichment area suddenly increases, when the electronic control MCU unit monitors that the electrostatic potential of the static electricity enrichment area is higher than the preset parameter value, it drives the servo motor to automatically adjust the air outlet angle to blow air concentratedly on the high-potential area, clear the static electricity in the area where the negative ion-rich air is formed, and make the electrostatic potential drop below the safety threshold.

[0026] In the conventional static electricity elimination mode, when the electrostatic potential values of each static electricity enrichment area are temporarily lower than the safety threshold, 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 on the electronic equipment placement area in the laboratory in turn, so that the electrostatic potential remains at a low level.

[0027] Further, the implementation method specifically includes the following steps:

[0028] Step 1, obtain the pulse range of each equipment static electricity enrichment area:

[0029] Set the safety threshold U0 and the 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 to drive the air outlet to move left, right, up and down around the center position of the static electricity enrichment area, and the electronic control MCU unit obtains the static electricity potential value measured by the infrared remote static electricity tester coaxial with the air outlet. When the air outlet moves to the left end and the value measured by 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 value measured by 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 value measured by 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 value measured by the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Yb. Therefore, the pulse range of the static electricity enrichment area is (Pulse_Xa, Pulse_Xb), (Pulse_Ya, Pulse_Yb).

[0030] 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 the 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 the pulse value Pulse_Xb to the lateral servo motor, the lateral angle of the air outlet will move to the rightmost end θb;

[0031] 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 the pulse value Pulse_Ya to the lateral servo motor, the lateral angle of the air outlet will move to the uppermost end βa. When the electronic control MCU unit sends the pulse value Pulse_Yb to the lateral servo motor, the lateral angle of the air outlet will move to the lowermost end βb.

[0032] Further, the implementation method specifically further includes the following steps:

[0033] Step 2, perform air sweeping in the conventional static electricity removal mode:

[0034] 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.

[0035] 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;

[0036] 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;

[0037] 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;

[0038] 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;

[0039] 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.

[0040] Furthermore, the implementation method further includes the following steps:

[0041] Step 3: Use the sudden static elimination mode to sweep the air:

[0042] 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.

[0043] Furthermore, the implementation method further includes the following steps:

[0044] Step 4, negative ion generating unit power adjustment:

[0045] Since the spatial range and electrostatic potential of each electrostatic enrichment region are different, in order to save electrical energy and take into account the electrostatic removal efficiency, it is necessary to dynamically adjust the power of the negative ion generation unit;

[0046] Designate a standard area in the laboratory, with its space being A cubic meters. The electrostatic potential value that the electrostatic potential of the standard area is higher than the safety threshold U0 is B volts. After power calibration and 30 seconds of negative ion blowing, the electrostatic potential of the standard area is reduced to the safety threshold U0. Then the reference value of the power of the negative ion generation unit P = A * B. For another electrostatic enrichment region with a space of C cubic meters, the electrostatic potential value that the electrostatic potential of the electrostatic enrichment region is higher than the safety threshold U0 is D volts, and the power adjustment ratio value of the negative ion generation unit is Pn = (C * D) / (A * B).

[0047] Adopting the above technical solutions, compared with the prior art, the present invention has the following technical effects:

[0048] It can actively search for targets to remove static electricity according to the static electricity level in the area, and can automatically calculate the three-dimensional space size of the electrostatic enrichment area to be removed according to the external dimensions of different electronic devices prone to static electricity, automatically set the air blowing speed, and automatically adjust the power of the negative ion generation unit, achieving high-power and high-speed air blowing for large-sized devices and low-power and low-speed for small-sized devices, taking into account energy conservation and efficiency.

[0049] 1. Effectively remove static electricity in the electrostatic enrichment area;

[0050] According to the static electricity generation situation in different areas of the laboratory, several electrostatic enrichment areas can be preset, and the air outlet angle can be automatically adjusted to blow air concentratedly towards these areas. The fresh air containing negative ions covers the electrostatic enrichment area within a life cycle of several minutes to neutralize static electricity.

[0051] 2. Timely eliminate the sudden increase in static electricity potential;

[0052] Through the monitoring of the electrostatic potential in the area prone to static electricity, for the sudden increase in static electricity caused by personnel activities (such as friction between clothes and the sofa when sitting on the sofa, dressing and undressing in the dressing area, etc.), the air outlet angle is automatically adjusted to blow air concentratedly towards the high-potential area to form an area rich in negative ion air. In this way, when personnel leave this area, within a few seconds, the negative ion air mass surrounds the human body to remove static electricity, preventing personnel from moving to other areas with static electricity and discharging.

[0053] 3. Take into account energy conservation and electrostatic removal efficiency

[0054] By monitoring the static potential in the electrostatic-prone areas, when the static potential is high, the power of the negative ion generation unit is increased proportionally; when the static potential is low, the power of the negative ion generation unit is decreased proportionally; when the electrostatic enrichment area is large, the power of the negative ion generation unit is increased proportionally; when the electrostatic enrichment area is small, the power of the negative ion generation unit is decreased proportionally, taking into account both energy conservation and static elimination efficiency. Brief Description of the Drawings

[0055] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or 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 to actual scale.

[0056] Figure 1 It is a structural block diagram of the intelligent fresh air system in the present invention;

[0057] Figure 2 It is a schematic diagram of the left-right adjustment range of the air outlet in the present invention;

[0058] Figure 3 It is a schematic diagram of the up-down adjustment range of the air outlet in the present invention. Detailed Description of the Embodiments

[0059] Embodiment, as Figure 1 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 generation unit, an air outlet angle adjustment unit, and a static electricity detection unit.

[0060] The function of the fresh air unit is to circulate and replace the outdoor fresh air and the indoor turbid air under the drive of the circulation fan.

[0061] The function of the negative ion generation unit is to generate negative ions. The negative ions enter the room through the fresh air unit to neutralize static electricity, and the power of the negative ion generation unit can be dynamically adjusted according to the size of the three-dimensional space in each area, ensuring that the negative ion concentration is not too high while quickly eliminating static electricity.

[0062] The air outlet angle adjustment unit is equipped with a servo motor, which can adjust the air outlet angle up, down, left, and right, and can blow air to any position in the room.

[0063] The static electricity detection unit includes several fixed regional static electricity testers and a movable infrared remote static electricity tester. The fixed regional static electricity testers are installed in the electrostatic enrichment areas to monitor the sudden increase in static potential; the movable infrared remote static electricity tester is installed at the air outlet to monitor the static potential in the area where electronic devices and instruments are placed and assist the electronic control MCU unit in calculating the three-dimensional space size of the electrostatic enrichment area.

[0064] The function of the electric control MCU unit is to monitor the static potential values of each area, dynamically adjust the power of the negative ion generation unit, and can automatically calculate the servo motor pulse value corresponding to the three-dimensional size of the electrostatic space of the electronic device through a movable infrared remote static electricity tester. The electric control MCU unit sends a pulse signal to the servo motor to adjust the outlet air angle and accurately align it with the electrostatic enrichment area.

[0065] The intelligent fresh air system for actively eliminating static electricity involved in the present invention is installed in a confined electronic laboratory room with limited space (hereinafter referred to as the laboratory). According to the size of the laboratory space, the air outlet power and the size of the air outlet of the fan are reasonably designed, and it takes half an hour for the fresh air to complete one air change cycle.

[0066] The designed rotation 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 within no more than 30 seconds.

[0067] To ensure the negative ion content at the farthest end, the fan-shaped tilt angle of the air outlet deflector does not exceed 5 degrees, ensuring that the fresh air reaches the farthest end and the radial diffusion range of the air column does not exceed 20%.

[0068] The air outlet angle adjustment unit includes a horizontal servo motor and a vertical servo motor. The horizontal angle of the air outlet is adjusted by the horizontal servo motor, and the adjustment range is 90 degrees, so that the fresh air can sweep horizontally to cover the left and right ranges of the entire laboratory.

[0069] The vertical angle of the air outlet is adjusted by the vertical servo motor, and the adjustment range is 90 degrees, so that the fresh air unit can sweep vertically to cover the upper and lower ranges of the entire laboratory.

[0070] Multiple stationary electronic devices are installed in the laboratory, forming multiple electrostatic enrichment areas. An area static electricity tester is installed on each electronic device. Through wireless communication, the electric control MCU unit can receive and monitor the static potential values of each area in real time.

[0071] An infrared remote static electricity tester is installed at the air outlet. The test direction of the tester is coaxial with the air blowing direction of the air outlet, and the infrared remote static electricity tester moves together with the air outlet.

[0072] An implementation method of an intelligent fresh air system for actively eliminating static electricity includes two working modes:

[0073] Sudden static electricity elimination mode: For the situation where the static potential of a certain electrostatic enrichment area suddenly increases (for example, the electronic device switches from low power to high power), when the electric control MCU unit monitors that the static potential of the electrostatic enrichment area is higher than the preset parameter value, it drives the servo motor to automatically adjust the air outlet angle to blow concentrated air at the high potential area, forming an area rich in negative ion air to eliminate static electricity and reducing the static potential below the safety threshold.

[0074] 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.

[0075] The implementation method specifically includes the following steps:

[0076] Step 1, obtain the pulse range of the electrostatic enrichment area of ​​each device:

[0077] 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).

[0078] 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.

[0079] 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.

[0080] According to the method of defining the electrostatic enrichment area above, convert the upper, lower, left, and right spaces of the electrostatic enrichment area into the outlet motor pulses. If n electrostatic enrichment areas are defined in the laboratory, the electronic control MCU unit records n horizontal servo motor pulse ranges: (Pulse_Xa1, Pulse_Xb1), (Pulse_Xa2, Pulse_Xb2)... (Pulse_Xan, Pulse_Xbn) and n vertical servo motor pulse ranges (Pulse_Ya1, Pulse_Yb1), (Pulse_Ya2, Pulse_Yb2)... (Pulse_Yan, Pulse_Ybn).

[0081] Step 2, perform air sweeping in the conventional electrostatic elimination mode:

[0082] The electronic control MCU unit obtains the static potential U1 measured by the area electrostatic tester of each electrostatic enrichment area. When the static potential U1 of all electrostatic enrichment areas is greater than the safety threshold U0 and less than the danger threshold Ud at the same time, the electronic control MCU unit sends pulses. Depending on the left-right range and up-down range of the electrostatic enrichment area obtained by the infrared remote electrostatic tester, the horizontal servo motor pulse range (Pulse_Xa, Pulse_Xb) and the vertical 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 the electrostatic enrichment area.

[0083] The air sweeping method first executes the horizontal servo motor pulse Pulse_Xa and the vertical servo motor pulse Pulse_Ya, and then adopts left-right folding back, that is, the vertical servo motor pulse remains unchanged, the horizontal servo motor pulse increases to Pulse_Xb and then decreases and folds back, and at the same time the vertical servo motor pulse increases by a fixed value; or the up-down folding back method, that is, the horizontal servo motor pulse remains unchanged, the vertical servo motor pulse increases to Pulse_Yb and then decreases and folds back, and at the same time the horizontal servo motor pulse increases by a fixed value. The speed of air sweeping and the value of the increasing pulse are used to complete an air sweeping cycle in the shortest time, blow air on each electrostatic-prone area in turn until the static potential is significantly reduced, achieving the effect of preventing static electricity accumulation.

[0084] The time for completing an area air sweeping cycle is controlled within 30 seconds. For areas with a large range, the angular velocity of air sweeping is larger, and for 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.

[0085] Step 3, perform air sweeping in the burst electrostatic elimination mode:

[0086] The electric control MCU unit obtains the static potential U1 measured by the area static electricity tester in each static electricity enrichment area. When the static potential U1 in a certain static electricity enrichment area reaches the dangerous threshold Ud (for example, 1500 volts), the fresh air system enters the emergency static electricity removal mode. The electric control MCU unit controls the servo motor to adjust the air outlet according to the preset pulse in this static electricity enrichment area, and gives priority to sweeping the air in this static electricity enrichment area to reduce the static potential in this static electricity enrichment area.

[0087] Step 4, power adjustment of the negative ion generation unit:

[0088] Since the spatial range and static potential of each static electricity enrichment area are different, in order to save electric energy and take into account the static electricity removal efficiency, it is necessary to dynamically adjust the power of the negative ion generation unit.

[0089] Designate a standard area in the laboratory, assuming its space is A cubic meters. The value of the static potential in the standard area that is higher than the safety threshold U0 is B volts. After power calibration, after 30 seconds of negative ion blowing, the static potential in the standard area is reduced to the safety threshold U0. Then the reference value of the power of the negative ion generation unit is P = A * B. For another static electricity enrichment area with a space of C cubic meters, the value of the static potential in the static electricity enrichment area that is higher than the safety threshold U0 is D volts, and the power adjustment ratio value of the negative ion generation unit is Pn = (C * D) / (A * B).

[0090] Among them, steps 2 and 3 are not executed in a specific order and are selected for execution according to the static electricity enrichment situation in the laboratory. Step 4 is synchronously interspersed and executed between steps 2 and 3.

[0091] The description of the present invention is given for purposes of illustration and description, and is not intended to be exhaustive or to limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A method for implementing an intelligent fresh air system that actively eliminates static electricity, characterized in that: The described implementation method is applied to an intelligent fresh air system for actively eliminating static electricity. The intelligent fresh air system includes an electronic control MCU unit, which is connected to a fresh air unit, a negative ion generation unit, an air outlet angle adjustment unit, and a static electricity detection unit; The static electricity detection unit includes several fixed area static electricity testers and a movable infrared remote static electricity tester. The fixed area static electricity testers are installed in the static electricity enrichment area to monitor the sudden increase in the static electricity potential; the movable infrared remote static electricity tester is installed at the air outlet to monitor the static electricity potential in the area where electronic devices and instruments are placed and assist the electronic control MCU unit in calculating the three-dimensional space size of the static electricity enrichment area; The function of the fresh air unit is to circulate and replace the outdoor fresh air and the indoor turbid air under the drive of a circulation fan; The function of the negative ion generation unit is to generate negative ions, and the negative ions enter the room through the fresh air unit to neutralize static electricity; The air outlet angle adjustment unit includes an air outlet installed with a sector-shaped guide plate, and the inclination angle of the guide plate does not exceed 5 degrees. 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 static electricity potential values in each area, dynamically adjust the power of the negative ion generation unit, and can automatically calculate the servo motor pulse value corresponding to the three-dimensional size of the static electricity space of the electronic device through the movable infrared remote static electricity tester. The electronic control MCU unit sends a pulse signal to the servo motor to adjust the air outlet angle and accurately align it with the static electricity enrichment area; The described implementation method includes two working modes, namely the sudden static electricity elimination mode and the conventional static electricity elimination mode. The electronic control MCU unit selects the sudden static electricity elimination mode or the conventional static electricity elimination mode according to the static electricity enrichment situation for operation; The sudden static electricity elimination mode is for the situation where the static electricity potential of a certain static electricity enrichment area suddenly increases. When the electronic control MCU unit monitors that the static electricity potential of this static electricity enrichment area is higher than the preset parameter value, it drives the servo motor to automatically adjust the air outlet angle to blow air concentratedly on the high potential area, form a negative ion-rich air area to eliminate static electricity, and make the static electricity potential drop below the safety threshold; The conventional static electricity elimination mode is when the static electricity potential values in each static electricity enrichment area are temporarily lower than the safety threshold, 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 on the area where electronic devices are placed in the laboratory in turn, so that the static electricity potential remains at a low level.

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

3. The implementation method of an intelligent fresh air system for actively eliminating static electricity as described in claim 1, characterized in that: The area static electricity tester communicates with the electronic control MCU unit wirelessly, and the electronic control MCU unit can receive and monitor the static electricity potential values of each area in real time.

4. The implementation method of an intelligent fresh air system for actively eliminating static electricity as described in claim 1, characterized in that: The test direction of the infrared remote static electricity tester is coaxial with the air outlet blowing direction, and the infrared remote static electricity tester moves together with the air outlet.

5. The implementation method of an intelligent fresh air system for actively eliminating static electricity according to claim 1, characterized in that: The described 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 the danger threshold Ud of static electricity, define a spatial range for removing static electricity for each electrostatic enrichment area, the electronic control MCU unit sends pulses to the servo motor to drive the air outlet to move left and right, up and down around the center position of the electrostatic enrichment area, and the electronic control MCU unit obtains the static potential value measured by the infrared remote static electricity tester coaxial with the air outlet. When the air outlet moves to the left end and the value measured by 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 value measured by 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 value measured by 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 value measured by the infrared remote static electricity tester is less than the safety threshold U0, record the pulse value Pulse_Yb. Therefore, the pulse range of the electrostatic enrichment area is (Pulse_Xa, Pulse_Xb), (Pulse_Ya, Pulse_Yb); The horizontal angle range (θa, θb) of the air outlet corresponds to the horizontal servo motor pulse range (Pulse_Xa, Pulse_Xb). When the electronic control MCU unit sends the pulse value Pulse_Xa to the horizontal servo motor, the horizontal angle of the air outlet will move to the leftmost end θa. When the electronic control MCU unit sends the pulse value Pulse_Xb to the horizontal servo motor, the horizontal angle of the air outlet will move to the rightmost end θb; The vertical angle range (βa, βb) of the air outlet corresponds to the vertical servo motor pulse range (Pulse_Ya, Pulse_Yb). When the electronic control MCU unit sends the pulse value Pulse_Ya to the horizontal servo motor, the horizontal angle of the air outlet will move to the uppermost end βa. When the electronic control MCU unit sends the pulse value Pulse_Yb to the horizontal servo motor, the horizontal angle of the air outlet will move to the lowermost end βb.

6. The implementation method of an intelligent fresh air system for actively eliminating static electricity as described in claim 5, characterized in that: The implementation method specifically further includes the following steps: Step 2, perform air sweeping in the conventional static electricity removal mode: The electronic control MCU unit obtains the static potential U1 measured by the area static electricity tester of each electrostatic enrichment area. When the static potential U1 of all electrostatic enrichment areas is greater than the safety threshold U0 and less than the danger threshold Ud at the same time, the electronic control MCU unit sends pulses. Depending on the left and right range and the up and down range of the electrostatic enrichment area obtained by the infrared remote static electricity tester, the horizontal servo motor pulse range (Pulse_Xa, Pulse_Xb) of the air outlet and the vertical 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 the electrostatic enrichment area.

7. The implementation method of an intelligent fresh air system for actively eliminating static electricity according to claim 6, characterized in that: In the air sweeping method in Step 2, first execute the horizontal servo motor pulse Pulse_Xa and the vertical 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.

8. The implementation method of an intelligent fresh air system for actively eliminating static electricity as described in claim 5, 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.

9. The implementation method of an intelligent fresh air system for actively eliminating static electricity according to claim 5, 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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