Static interference elimination method for negative air ion product

Abstract

The invention provides an electrostatic interference elimination method for an air negative ion product. The air negative ion product comprises a negative high voltage electrode and a relative electrode. Particularly, the negative air ion product is provided with a static electricity elimination mechanism which is characterized in that a negative high-voltage electrode and an opposite electrode are electrically connected through an electric conduction medium, so that high voltage formed between the negative high-voltage electrode and the opposite electrode is applied to the electric conduction medium, and negative charges are transmitted to the opposite electrode along the electric conduction medium to be neutralized with positive charges; and static elimination is realized. Furthermore, the obvious reduction of the negative ion concentration is taken as the basis for executing the static elimination mechanism, and the execution is ended after 3-10 seconds. Or the obvious reduction of the working current of the negative ion generator circuit is taken as the basis for executing the static elimination mechanism, and the execution is ended after 3-10 seconds. The problem of electrostatic interference can be effectively solved, the air negative ion product can efficiently, stably and continuously generate high-concentration air negative ions, and a positive health effect is generated for a product user.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, specifically to a method for eliminating electrostatic interference in air negative ion products. Background Technology

[0002] High concentrations of negative air ions can effectively improve people's breathing environment and have a certain auxiliary therapeutic effect on insomnia and respiratory diseases. Therefore, more and more negative air ion products on the market strive to generate high concentrations of negative air ions. However, while generating high concentrations of negative air ions, these products also generate static electricity interference. This static electricity interference problem mainly consists of two parts: First, most air negative ion products use insulating, smooth plastic as their outer shell, lacking electrical grounding. When a high concentration of negative ions enters the ambient air, the product itself is also enveloped by this high concentration. The surface of the insulating, smooth plastic shell easily accumulates negative charges, forming an electrostatic film. As static electricity accumulates, the entire shell becomes a large negative electrode, with a potential comparable to the negative high voltage generated by the internal negative ion generator. According to the principles of electrostatics (Faraday cage effect), charge is only distributed on the outer surface of a conductor. The emitter inside the product is surrounded by the electrostatically charged shell, and the electric field it generates is "shielded" by the shell's electrostatic field, making it difficult for the generated negative ions to effectively penetrate into the outside air. Furthermore, a huge capacitance effect is formed between the emitter tip (which has a very small surface area) and the entire shell (which has a large surface area). The high-voltage circuit of the negative ion generator has very low power, with current in the microamplitude range. Now it needs to continuously charge this huge "outer capacitor", a process that consumes most of the energy, resulting in very little energy left to be allocated to the emitter tip for ionizing the air, making it impossible to establish a sufficiently strong electric field. As a result, the air ionization efficiency is reduced, and the concentration of negative ions emitted into the air is very low, or even unable to generate negative air ions.

[0003] Second: The negative high-voltage electrode of the negative ion generator inside the product ionizes the air, generating a large number of electrons (e-) at high speed. These electrons combine with substances such as oxygen in the air to form negative air ions. The opposite electrode of the generator creates a strong electric field in the air, absorbing electrons (e-) from the air and forming a circuit within the high-voltage circuit of the negative ion generator. This allows the high corona ionization of air by the negative ion generator to continue, continuously generating negative air ions.

[0004] Ideally, all electrons generated by the negative high-voltage electrode should be absorbed by the opposite electrode, forming an ideal current loop within the high-voltage circuit of the negative ion generator, resulting in a continuous and stable ionization phenomenon. In practice, however, most of the electrons (e-) generated by the negative high-voltage electrode escape into the air to form negative air ions, with only a very small number being absorbed by the opposite electrode. Therefore, the current loop within the generator's high-voltage circuit is incomplete and unbalanced. To maintain a complete current loop in the high-voltage circuit, electrons from objects in contact with the generator housing or from the surrounding air, attracted by the electric field of the opposite electrode and repelled by the electric field of the negative high-voltage electrode, will creep towards the opposite electrode. According to the law of conservation of charge, the loss of one electron produces one positive ion. These positive ions accumulate in the negative ion generator circuit, forming a large amount of positive static charge. This static charge accumulation can interfere with the primary circuitry or, through the primary circuitry, interfere with the control circuitry. Control circuits interfered with by static charge may malfunction or be damaged, thus affecting the normal operation of the entire negative air ion product. Summary of the Invention

[0005] The purpose of this invention is to propose a method for eliminating electrostatic interference in air negative ion products, which solves the electrostatic interference problem mentioned in the background art, improves the air purification effect of air negative ion products, and ensures the reliable, efficient and safe operation of air negative ion products.

[0006] The objective of this invention can be achieved through the following technical solutions: A method for eliminating electrostatic interference in an air negative ion product, the air negative ion product comprising a negative high-voltage electrode and a relative electrode; characterized in that: the air negative ion product is provided with an electrostatic elimination mechanism, the electrostatic elimination mechanism being: the negative high-voltage electrode and the relative electrode are electrically connected through an electrically conductive medium, thereby applying the high voltage formed between the negative high-voltage electrode and the relative electrode to the electrically conductive medium, causing the negative charge to be transferred along the electrically conductive medium to the relative electrode to neutralize the positive charge, thus achieving electrostatic elimination.

[0007] The optimized scheme detects the concentration C of negative ions generated by the air negative ion product. The air negative ion product generates a steady-state negative ion concentration CW under stable working conditions. When the concentration C of negative ions generated by the air negative ion product decreases to C≤80%CW, an electrostatic elimination mechanism is executed, and the electrostatic elimination mechanism is terminated after 3 to 10 seconds.

[0008] Furthermore, the air negative ion product also includes a negative ion generator and a current detection circuit. The current detection circuit is used to detect the operating current I of the negative ion generator circuit. The operating current corresponding to the reduction of the negative ion concentration C to C≤80%CW is used as the current execution threshold IA of the electrostatic elimination mechanism. When the operating current I of the negative ion generator circuit is reduced to I≤IA, the electrostatic elimination mechanism is executed and terminated after 3 to 10 seconds.

[0009] The electrostatic elimination mechanism can be implemented in the following ways: The air negative ion product also includes a product casing, and the negative high voltage electrode and the opposite electrode are respectively disposed inside the product casing.

[0010] The negative high-voltage electrode is movably arranged, and the product casing has a release port corresponding to the direction of movement of the negative high-voltage electrode. The end of the negative high-voltage electrode is located in the release port, and the negative high-voltage electrode can be moved until its end contacts the edge of the release port and then contacts the product casing. The opposite electrode is fixedly arranged, and a contact component is provided between the opposite electrode and the product casing so that the end of the opposite electrode contacts the product casing through the contact component.

[0011] When the electrostatic elimination mechanism is executed, the negative high-voltage electrode is moved until its end contacts the edge of the release port, thereby causing the edge of the release port, the product shell, and the contact component to sequentially contact and form an electrically conductive medium, so that the negative high-voltage electrode and the opposite electrode are electrically connected through the electrically conductive medium; when the electrostatic elimination mechanism is terminated, the negative high-voltage electrode is moved until its end leaves the edge of the release port.

[0012] Furthermore, a first swing arm is movably arranged near the negative high-voltage electrode, and the negative high-voltage electrode is connected to the first swing arm and moves under the drive of the first swing arm.

[0013] Furthermore, the first swing arm has a long strip structure and is driven to rotate by the first motor. The output shaft of the first motor is perpendicularly connected to the first end of the first swing arm. The negative high voltage electrode is arranged along the first swing arm and its end extends from the second end of the first swing arm. The output shaft of the first motor can reciprocate at a predetermined angle, thereby driving the negative high voltage electrode to swing back and forth through the first swing arm.

[0014] The contact components used in the static elimination mechanism of this invention can be adopted in the following ways: The product casing has an opening corresponding to the opposite electrode, and the product casing has a contact portion located within the opening that is always in contact with the opposite electrode, the contact portion serving as the contact component.

[0015] The contact components used in the static elimination mechanism of this invention can also be in the following forms: The product casing contains a conductive component. A first end of the conductive component is connected to the product casing and is close to the edge of the release port. A second end of the conductive component extends to the vicinity of the end of the opposite electrode. A second swing arm is movably arranged near the opposite electrode. When the electrostatic elimination mechanism is executed, the second swing arm moves to simultaneously contact the second end of the opposite electrode and the conductive component, thereby making the conductive component and the second swing arm in contact form a contact component. When the electrostatic elimination mechanism is terminated, the negative high voltage electrode moves to the point where its end leaves the edge of the release port, and the second swing arm moves at least away from the opposite electrode.

[0016] Furthermore, the second swing arm is driven to rotate by the second motor. The output shaft of the second motor is perpendicularly connected to the middle of the second swing arm. The second swing arm has a wing plate portion for contacting the opposite electrode and a connector portion for contacting the second end of the conductive component. The output shaft of the second motor can reciprocate at a predetermined angle, thereby driving the second swing arm to swing.

[0017] Furthermore, the conductive component is a flexible wire, the second end of which is connected to the connector of the second swing arm.

[0018] This invention has the following outstanding substantive features and significant progress: This invention achieves electrical connection between the negative high-voltage electrode and the opposite electrode using an electrically conductive medium. This allows the high voltage formed between the negative high-voltage electrode and the opposite electrode to be applied to the electrically conductive medium, enabling negative charges to be transferred along the medium to the opposite electrode and neutralize the positive charges. Firstly, it avoids the accumulation of static electricity on the product's outer casing, which can lead to the Faraday cage effect and capacitor charging principle, hindering the formation of negative air ions. This effectively solves the static interference problem of most air negative ion products with insulating casings on the market. Secondly, this invention also effectively solves the problem of static electricity accumulation in the negative ion generator circuit interfering with the product's control circuit, thus affecting the normal operation of the entire air negative ion product. This invention enables air negative ion products to efficiently, stably, and continuously generate high concentrations of negative air ions, producing positive health effects for the users. Attached Figure Description

[0019] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of the air negative ion product in Example 1.

[0020] Figure 3 for Figure 2 Enlarged view of section A.

[0021] Figure 4 This is a schematic diagram of the internal structure of the negative air ion product in Example 1.

[0022] Figure 5This is a schematic diagram of the state of the negative high-voltage electrode when the electrostatic elimination mechanism of Example 1 is executed.

[0023] Figure 6 This is a schematic diagram of the overall structure of the air negative ion product in Example 2.

[0024] Figure 7 This is a schematic diagram of the internal structure of the air negative ion product in Example 2.

[0025] Figure 8 This is a schematic diagram of the state of the air negative ion product when the electrostatic elimination mechanism of Example 2 is executed.

[0026] Figure 9 for Figure 8 Enlarged view of section B in the middle.

[0027] Figure 10 This is a schematic diagram of the internal structure of the air negative ion product when the electrostatic elimination mechanism of Example 2 is executed. Detailed Implementation

[0028] The invention will now be further described with reference to the accompanying drawings.

[0029] Example 1

[0030] refer to Figures 1 to 5 A method for eliminating electrostatic interference in an air negative ion product is disclosed. The air negative ion product includes a negative high-voltage electrode 1 and a counter electrode 2. The air negative ion product is equipped with an electrostatic elimination mechanism, which involves electrically connecting the negative high-voltage electrode 1 and the counter electrode 2 through an electrically conductive medium. This allows the high voltage formed between the negative high-voltage electrode 1 and the counter electrode 2 to be applied to the electrically conductive medium, causing negative charges to be transferred along the electrically conductive medium to the counter electrode 2 and neutralize the positive charges, thereby achieving electrostatic elimination.

[0031] In this embodiment, the conductive medium is made of materials such as ceramics, plastics, rubber, and metals. For conductive media made of insulating materials such as plastics, rubber, etc., electrical conduction is achieved by utilizing the creepage phenomenon on the surface of the insulating material. This conductivity is only required to achieve a certain amount of electron conduction and electron flow between the negative high-voltage electrode 1 and the opposite electrode 2; strong conductivity is not necessary. When the electrostatic elimination mechanism is executed, the high voltage output from the negative high-voltage electrode 1 is applied to the surface of the conductive medium. Negative charges are transferred from the negative high-voltage electrode 1, which is at a high potential, along the conductive medium to the opposite electrode 2, which is at a low potential. The negative charges are neutralized by the positive charges formed by the opposite electrode 2. The following section provides a detailed explanation of how the "neutralization of negative charges by the positive charges formed by the opposite electrode 2" can solve the electrostatic interference problem between the product casing and the negative ion generator circuit mentioned in the background art.

[0032] Furthermore, the air negative ion product also includes a product casing 3, which is made of insulating material. The negative high-voltage electrode 1 and the relative electrode 2 are respectively disposed inside the product casing 3; the negative high-voltage electrode 1 is movably arranged, and the product casing 3 has a release port 31 corresponding to the moving direction of the negative high-voltage electrode 1. The end of the negative high-voltage electrode 1 is located inside the release port 31, and the negative high-voltage electrode 1 can be moved until its end contacts the edge of the release port 31 and then contacts the product casing 3; the relative electrode 2 is fixedly arranged, and a contact member is provided between the relative electrode 2 and the product casing 3, so that the end of the relative electrode 2 contacts the product casing 3 through the contact member.

[0033] In this embodiment, please refer to the specific details. Figures 2 to 4 The specific structure of the contact component used in the static elimination mechanism is as follows: the product shell 3 has an opening 32 corresponding to the opposite electrode 2, and the product shell 3 has a contact portion 33 located in the opening 32 that is always in contact with the opposite electrode 2, and the contact portion 33 serves as the contact component.

[0034] When implementing the static electricity elimination mechanism, please refer to the specific instructions. Figure 5 The negative high voltage electrode 1 is moved until its end contacts the edge of the release port 31, thereby causing the edge of the release port 31, the product shell 3, and the contact component to sequentially contact and form an electrical conductive medium, so that the negative high voltage electrode 1 and the opposite electrode 2 are electrically connected through the electrical conductive medium; when the static elimination mechanism is terminated, the negative high voltage electrode 1 is moved until its end leaves the edge of the release port 31.

[0035] The edge of the release port 31, the product shell 3, and the contact portion 33 of the product shell 3 are sequentially contacted to form an electrically conductive medium. When the static electricity elimination mechanism is executed, the high voltage and negative charge formed by the negative high voltage electrode 1 are transferred to the opposite electrode 2 along the electrically conductive medium, and the positive charge formed by the opposite electrode 2 is neutralized to achieve static electricity elimination.

[0036] When the air negative ion product is powered on, the product casing 3 itself is also covered with a high concentration of negative ions, and a negative charge accumulates on the surface to form an electrostatic film layer. As static electricity accumulates, the entire casing forms a huge negative electrode, resulting in the accumulation of negative charge. Furthermore, a huge capacitance effect is formed between the emitter tip of the negative ion generator and the entire casing, leading to increased power consumption and a decrease in the concentration of negative ions emitted into the air. Therefore, a static elimination mechanism can generally be set to be executed every 60 to 120 minutes. By executing this mechanism, the high voltage formed by the negative high-voltage electrode 1 is applied to the conductive medium, i.e., the product casing 3. The negative charge accumulated on the surface of the product casing 3 is transferred from the high-potential negative high-voltage electrode 1 to the low-potential opposite electrode 2. The negative charge is then neutralized by the positive charge formed by the opposite electrode 2, achieving the static elimination of negative charge on the surface of the product casing 3. The static elimination mechanism is terminated after 3 to 10 seconds.

[0037] At the same time, while transferring the negative charge accumulated on the surface of the product shell 3 to the relative electrode 2, the imbalance of positive charge (positive ions) on the relative electrode 2 is also balanced. After the positive charge formed on the relative electrode 2 is neutralized and balanced, the positive charge static electricity accumulated in the negative ion generator circuit can be reduced, thereby eliminating the positive charge static electricity in the negative ion generator circuit.

[0038] It should be noted that during the electrostatic elimination mechanism, the negative high-voltage electrode 1 and the opposite electrode 2 of the air negative ion product are always energized. Therefore, after the electrostatic elimination mechanism terminates, the air negative ion product will return to normal operation. Figure 1 and Figure 2 As shown, it releases negative ions.

[0039] Furthermore, in this embodiment, specific reference is made. Figure 4 and Figure 5 A first swing arm 11 is movably arranged near the negative high-voltage electrode 1. The negative high-voltage electrode 1 is connected to the first swing arm 11 and is moved by the first swing arm 11. The first swing arm 11 has a long strip structure and is driven to rotate by a first motor 12. The output shaft of the first motor 12 is perpendicularly connected to the first end of the first swing arm 11. The negative high-voltage electrode 1 is arranged along the first swing arm 11, and its end extends from the second end of the first swing arm 11. The output shaft of the first motor 12 can reciprocate at a predetermined angle, thereby driving the negative high-voltage electrode 1 to swing back and forth through the first swing arm 11.

[0040] In addition, the wire used to connect the negative high voltage electrode 1 to the negative ion generator circuit is a flexible wire structure. When the negative high voltage electrode 1 moves with the first swing arm 11, since the movement position of the first swing arm 11 is not large, the wire of the flexible wire structure can be bent flexibly with the movement of the first swing arm 11 with sufficient length, without hindering the movement of the first swing arm 11.

[0041] In this embodiment, the negative high-voltage electrode 1 and the opposite electrode 2 are electrically connected to the negative ion generator circuit, and the negative ion generator circuit and the first motor 12 are electrically connected to the control circuit board. The control circuit board then controls the negative ion generator and the first motor 12. The function of the output shaft of the first motor 12 reciprocating at a predetermined angle is twofold: First, when the first motor 12 rotates in the forward direction, its output shaft rotates in the forward direction, causing the negative high-voltage electrode 1 to move until its end contacts the edge of the release port 31, thus executing the electrostatic elimination mechanism. Second, after the electrostatic elimination mechanism terminates, the first motor 12 rotates in the reverse direction, causing the negative high-voltage electrode 1 to return to the center of the release port 31, thereby restoring the air negative ion product to its normal air purification state. The operating state of the first motor 12 and its output shaft is automatically regulated by the control circuit board installed in the air negative ion product. The control circuit board presets that the electrostatic elimination mechanism will be executed once every 60 to 120 minutes and terminated after 3 to 10 seconds, thereby achieving automatic execution and termination of the electrostatic elimination mechanism.

[0042] Example 2

[0043] refer to Figures 6 to 10 In the electrostatic interference elimination method of the air negative ion product in this embodiment, the specific structure of the contact component used in the electrostatic elimination mechanism differs from that in Embodiment 1 in that: a conductive component 4 is provided inside the product shell 3, the first end of the conductive component 4 is connected to the product shell 3 and is close to the edge of the release port 31, and the second end of the conductive component 4 extends to the vicinity of the end of the opposite electrode 2; a second swing arm 21 is movably arranged near the opposite electrode 2. When the electrostatic elimination mechanism is executed, the second swing arm 21 moves to simultaneously contact the second end of the opposite electrode 2 and the conductive component 4, thereby making the conductive component 4 and the second swing arm 21 in contact form a contact component; when the electrostatic elimination mechanism is terminated, the negative high voltage electrode 1 moves to the point where its end leaves the edge of the release port 31, and the second swing arm 21 leaves the opposite electrode 2.

[0044] When implementing the static electricity elimination mechanism, please refer to the specific instructions. Figures 8 to 10When the negative high-voltage electrode 1 moves to contact the edge of the release port 31 at its end, an electrical conductive medium is formed by the sequential contact of the edge of the release port 31, the product shell 3, the first end of the conductive component 4, the second end of the conductive component 4, and the second swing arm 21. When the electrostatic elimination mechanism is executed, the high voltage and negative charge formed by the negative high-voltage electrode 1 are transferred to the opposite electrode 2 along the electrical conductive medium, and the positive charge formed by the opposite electrode 2 is neutralized. The electrostatic elimination effect is the same as that in Example 1, realizing the electrostatic elimination of negative charge on the surface of the product shell 3 and realizing the electrostatic elimination of positive charge in the negative ion generator circuit.

[0045] Furthermore, the conductive component 4 is a flexible wire, with its second end connected to the second swing arm 21. Due to the flexibility and bendability of the flexible structure, it can easily bypass components inside the product housing 3, facilitating installation. Additionally, the first and second ends of the conductive component 4 are fixedly mounted to the product housing 3 and the second swing arm 21 by screws 9, respectively. That is, the product housing 3 and the second swing arm 21 have pre-drilled holes, and both ends of the conductive component 4 are inserted into these holes and pressed into them by the screws 9, achieving positional fixation and connection stability of the conductive component 4. When the second swing arm 21 moves, since the range of motion of the second swing arm 21 is small, the flexible wire, being of sufficient length, can bend appropriately with the movement of the second swing arm 21 without obstructing its movement.

[0046] For further details, please refer to [link / reference]. Figure 7 and Figure 10 The second swing arm 21 is driven to rotate by the second motor 22. The output shaft of the second motor 22 is vertically connected to the middle part of the second swing arm 21. The second swing arm 21 has a wing plate portion 23 for contacting the opposite electrode 2 and a connector portion 24 for contacting the second end of the conductive component 4. The output shaft of the second motor 22 can reciprocate at a predetermined angle, thereby driving the second swing arm 21 to swing.

[0047] In this embodiment, the negative high-voltage electrode 1 and the opposite electrode 2 are electrically connected to the negative ion generator circuit, and the negative ion generator circuit, the first motor 12, and the second motor 22 are electrically connected to the control circuit board. The control circuit board then controls the negative ion generator, the first motor 12, and the second motor 22. The function of the output shaft of the second motor 22 reciprocating at a predetermined angle is twofold: First, when the second motor 22 rotates in the forward direction, its output shaft rotates in the forward direction, causing the wing plate portion 23 of the second swing arm 21 to contact the opposite electrode 2, and simultaneously causing the connector portion 24 of the second swing arm 21 to contact the conductive component 4, thus executing the electrostatic elimination mechanism. The second end of the flexible wire structure conductive component 4 is fixedly installed on the connector portion 24 of the second swing arm 21 by screws 9, ensuring that the connector portion 24 of the second swing arm 21 is always in contact with the conductive component 4. Secondly, after the electrostatic elimination mechanism terminates, the second motor 22 reverses its rotation, and its output shaft rotates in the opposite direction, causing the second swing arm 21 to return to its original position, with the wing plate portion 23 away from the opposite electrode 2. Simultaneously, the first motor 12 reverses its rotation, and its output shaft rotates in the opposite direction, causing the negative high-voltage electrode 1 to return to the center of the release port 31. This restores the air negative ion product to its normal air purification state. The operating status of the second motor 22 and its output shaft is automatically regulated by the control circuit board installed in the air negative ion product. In conjunction with the automatic regulation of the operating status of the first motor 12 and its output shaft, the control circuit board also presets an interval of 60 to 120 minutes for executing the electrostatic elimination mechanism and terminating it after 3 to 10 seconds, thus achieving automatic execution and termination of the electrostatic elimination mechanism.

[0048] Example 3

[0049] The present invention can also use changes in the concentration of negative ions generated by the air negative ion product or changes in the working current of the air negative ion product as the execution and termination conditions of the static electricity elimination mechanism.

[0050] The electrostatic interference elimination method of the air negative ion product in this embodiment provides a detailed description of the execution and termination conditions of the electrostatic elimination mechanism. Specifically: This embodiment uses the change in the concentration of negative ions generated by the air negative ion product as the basis for the execution and termination of the electrostatic elimination mechanism. Specifically, the concentration C of negative ions generated by the air negative ion product is detected. The air negative ion product generates a steady-state negative ion concentration CW under stable working conditions. When the concentration C of negative ions generated by the air negative ion product decreases to C≤80%CW, the electrostatic elimination mechanism is executed and terminated after 3 to 10 seconds.

[0051] Of course, after the electrostatic elimination mechanism is terminated, the air negative ion product resumes normal operation, while continuing to monitor the negative ion concentration. When the negative ion concentration C decreases to C≤80%CW, the electrostatic elimination mechanism is executed again, lasting 3 to 10 seconds before terminating and resuming normal operation. This process repeats continuously.

[0052] The method for determining the steady-state negative ion concentration of the air negative ion product under stable operating conditions is as follows: After the air negative ion product is powered on, negative ion concentration is detected. The negative ion concentrations detected at 10-minute intervals are analyzed. The concentration change rate VC is calculated by comparing the subsequent negative ion concentration C2 with the previous negative ion concentration C1, where VC = (C2 - C1) / C1, and VC is expressed as a percentage (%). The concentration change rate VC is calculated using four consecutively measured negative ion concentrations. In this embodiment, the air negative ion product is considered to be in a stable operating state when the absolute value of the concentration change rate VC does not exceed 5% for at least three consecutive measurements, and the corresponding operating current remains basically stable. The negative ion concentration value detected in the fourth measurement is taken as the steady-state negative ion concentration CW. Since the variation between the four consecutively measured negative ion concentration values ​​is very small, any one of the four consecutively measured negative ion concentration values ​​can be used as the concentration threshold CW, or the average value of the four negative ion concentrations can be used as the concentration threshold CW. Alternatively, negative ion concentration detection can be performed at intervals of 5 minutes or 20 minutes, with the time interval preferably not exceeding 20 minutes.

[0053] Furthermore, the aforementioned scheme, which uses changes in negative ion concentration as the basis for the execution and termination of the electrostatic elimination mechanism, This requires a dedicated negative ion concentration tester, and equipping an air negative ion product with such a tester would obviously increase product costs. Therefore, this embodiment also proposes another basis for the execution and termination of the electrostatic elimination mechanism, which uses the change in the working current of the air negative ion product as the basis for the execution and termination of the electrostatic elimination mechanism.

[0054] Specifically, the air negative ion product in this embodiment also includes a negative ion generator and a current detection circuit. The current detection circuit is set on the control circuit board and is used to detect the working current I of the negative ion generator circuit. The working current corresponding to the reduction of the negative ion concentration C to C≤80%CW is used as the current execution threshold IA of the electrostatic elimination mechanism. When the working current I of the negative ion generator circuit is reduced to I≤IA, the electrostatic elimination mechanism is executed and terminated after 3 to 10 seconds.

[0055] Similarly, after the electrostatic elimination mechanism is terminated, the air negative ion product resumes normal operation while continuing to monitor the operating current. When the operating current I of the negative ion generator circuit is detected to decrease to I≤IA again, the electrostatic elimination mechanism is activated, and terminated after 3 to 10 seconds, restoring normal operation. This process is repeated.

[0056] For products that use the current execution threshold IA as the basis for the execution and termination of the static electricity elimination mechanism, the negative ion concentrations involved are all obtained through laboratory testing before the product leaves the factory. That is, before leaving the factory, the testing personnel determine whether the air negative ion product is in a stable working state, the steady-state negative ion concentration, and the corresponding current execution threshold IA value and setting.

[0057] The current detection circuit uses a sampling resistor method combined with an operational amplifier to acquire the current, according to existing technology. In the power supply circuit of the negative ion generator, a very small precision resistor (e.g., 10mΩ) is connected in series as the sampling resistor. According to Ohm's law, voltage = current * resistance, when current flows through the sampling resistor, a small voltage drop is generated across it. This voltage drop signal is amplified by the operational amplifier circuit to obtain a voltage signal (between 0-3.3V) that the control circuit board MCU can acquire. The MCU reads the amplified voltage value and then, based on the amplification factor and the resistance of the sampling resistor, calculates the actual current value.

[0058] Different negative ion generators with different product structures, power ratings, output high voltages, or electronic control schemes will have varying operating currents and corresponding negative ion concentrations. This embodiment uses the air negative ion product from Example 2 as the test object. The negative ion generator used here has an input voltage of DC12V and an output high voltage of -DC12.5KV. After the air negative ion product is powered on, the negative ion concentration and operating current generated by the generator are calculated and recorded at regular intervals. Specifically, in this embodiment, the calculation and recording are performed every 10 minutes to analyze and determine the execution conditions of the static electricity elimination mechanism. The data is shown in Table 1.

[0059]

[0060] After the air negative ion product reached a stable operating state, without any intervention, the negative ion concentration and corresponding operating current were monitored every 10 minutes. Over the following 24 hours, the negative ion concentration gradually decreased to 500,000 ions / cm³, and the operating current gradually decreased to 149mA. The recorded negative ion concentrations and their corresponding operating currents are summarized in Table 2 below. As can be seen from Table 2, without any intervention, the negative ion concentration of the product significantly decreases, making it difficult to achieve a highly efficient air purification effect.

[0061]

[0062] In this embodiment, the steady-state negative ion concentration CW is defined as 12.6 million ions / cm³ in Table 1. When the detected negative ion concentration C meets the condition "C≤80%CW", which is 10.05 million ions / cm³ in Table 2, the electrostatic elimination mechanism is executed, and the corresponding detected operating current of 155 mA is used as the current execution threshold IA of the electrostatic elimination mechanism. When either the negative ion concentration C decreases to C≤80%CW or the operating current I decreases to I≤IA, the electrostatic elimination mechanism is executed to intervene in the negative ion product, effectively preventing a subsequent significant and continuous decrease in the negative ion concentration. The electrostatic elimination mechanism is terminated after 5 seconds. Because the negative charge is transferred rapidly from the high-potential negative high-voltage electrode 1 to the low-potential relative electrode 2, the negative charge can be transferred in just a few seconds using this potential difference, which is very efficient and fast.

[0063] Based on the above analysis and judgment of the conditions for the execution of the static elimination mechanism, another air negative ion product of the same model was used for the static elimination intervention test. In this embodiment, the "static elimination mechanism is executed when the working current I of the negative ion generator circuit decreases to I≤IA" is used to perform static elimination intervention on the negative ion product when the negative ion concentration decreases, and the current execution threshold IA=155 mA for the static elimination mechanism is set.

[0064] After the air negative ion product has been running for a period of time, its operating current drops to I = 155 mA, at which point the corresponding negative ion concentration is 10.15 million ions / cm³. Since the condition I ≤ IA is met, the static electricity elimination mechanism is automatically activated. After the static electricity elimination mechanism is activated, the negative ion concentration rises to 12.85 million ions / cm³, and then stabilizes at approximately 12.7 million ions / cm³, with the operating current returning to 158 mA.

[0065]

[0066] It is evident that the method of electrostatic elimination of air negative ion products in this invention can effectively maintain a high concentration of negative ions, thereby enabling air negative ion products to generate high concentrations of air negative ions efficiently, stably, and continuously, producing positive health effects on product users.

Claims

1. A method for eliminating electrostatic interference in an air negative ion product, the air negative ion product comprising a negative high-voltage electrode (1) and a relative electrode (2); characterized in that: The air negative ion product is equipped with an electrostatic elimination mechanism. The electrostatic elimination mechanism is as follows: the negative high voltage electrode (1) and the opposite electrode (2) are electrically connected through an electrical conduction medium, so that the high voltage formed between the negative high voltage electrode (1) and the opposite electrode (2) is applied to the electrical conduction medium, so that the negative charge is transferred along the electrical conduction medium to the opposite electrode (2) and neutralized with the positive charge, thereby realizing electrostatic elimination.

2. The method for eliminating electrostatic interference in an air negative ion product according to claim 1, characterized in that: The concentration C of negative ions generated by the air negative ion product is detected. The air negative ion product generates a steady-state negative ion concentration CW under stable working conditions. When the concentration C of negative ions generated by the air negative ion product decreases to C≤80%CW, an electrostatic elimination mechanism is executed, and the electrostatic elimination mechanism is terminated after 3 to 10 seconds.

3. The method for eliminating electrostatic interference in an air negative ion product according to claim 2, characterized in that: The air negative ion product also includes a negative ion generator and a current detection circuit. The current detection circuit is used to detect the working current I of the negative ion generator circuit. The working current corresponding to the reduction of the negative ion concentration C to C≤80%CW is used as the current execution threshold IA of the static elimination mechanism. When the working current I of the negative ion generator circuit is reduced to I≤IA, the static elimination mechanism is executed and terminated after 3 to 10 seconds.

4. The method for eliminating electrostatic interference in an air negative ion product according to claim 1, 2, or 3, characterized in that: The air negative ion product also includes a product shell (3), and the negative high voltage electrode (1) and the opposite electrode (2) are respectively disposed inside the product shell (3); The negative high voltage electrode (1) is movably arranged, and the product shell (3) has a release port (31) corresponding to the direction of movement of the negative high voltage electrode (1). The end of the negative high voltage electrode (1) is located inside the release port (31), and the negative high voltage electrode (1) can be moved until its end contacts the edge of the release port (31) and then contacts the product shell (3). The opposite electrode (2) is fixedly arranged, and a contact member is provided between the opposite electrode (2) and the product shell (3) so that the end of the opposite electrode (2) contacts the product shell (3) through the contact member. When the static elimination mechanism is executed, the negative high voltage electrode (1) is moved to the edge of the release port (31) at its end, and then the edge of the release port (31), the product shell (3), and the contact component are sequentially contacted to form an electrical conductive medium, so that the negative high voltage electrode (1) and the opposite electrode (2) are electrically connected through the electrical conductive medium; when the static elimination mechanism is terminated, the negative high voltage electrode (1) is moved to the edge of the release port (31) at its end.

5. The method for eliminating electrostatic interference in an air negative ion product according to claim 4, characterized in that: A first swing arm (11) is movably arranged near the negative high voltage electrode (1), and the negative high voltage electrode (1) is connected to the first swing arm (11) and moves under the drive of the first swing arm (11).

6. The method for eliminating electrostatic interference in an air negative ion product according to claim 5, characterized in that: The first swing arm (11) has a long strip structure and is driven to rotate by the first motor (12). The output shaft of the first motor (12) is perpendicularly connected to the first end of the first swing arm (11). The negative high voltage electrode (1) is arranged along the first swing arm (11) and its end extends from the second end of the first swing arm (11). The output shaft of the first motor (12) can rotate back and forth at a predetermined angle and thus drive the negative high voltage electrode (1) to swing back and forth through the first swing arm (11).

7. The method for eliminating electrostatic interference in an air negative ion product according to claim 4, characterized in that: The product casing (3) has an opening (32) corresponding to the opposite electrode (2), and the product casing (3) has a contact portion (33) located in the opening (32) that is always in contact with the opposite electrode (2), and the contact portion (33) serves as the contact component.

8. The method for eliminating electrostatic interference in an air negative ion product according to claim 4, characterized in that: The product casing (3) is provided with a conductive component (4). The first end of the conductive component (4) is connected to the product casing (3) and close to the edge of the release port (31). The second end of the conductive component (4) extends to the vicinity of the end of the opposite electrode (2). A second swing arm (21) is movably arranged near the opposite electrode (2). When the electrostatic elimination mechanism is executed, the second swing arm (21) moves to contact the second end of the opposite electrode (2) and the conductive component (4) at the same time, so that the conductive component (4) and the second swing arm (21) in the contact state form a contact component. When the electrostatic elimination mechanism is terminated, the negative high voltage electrode (1) moves to the edge of the release port (31) away from its end, and the second swing arm (21) moves away from the opposite electrode (2) at least.

9. The method for eliminating electrostatic interference in an air negative ion product according to claim 8, characterized in that: The second swing arm (21) is driven to rotate by the second motor (22). The output shaft of the second motor (22) is vertically connected to the middle of the second swing arm (21). The second swing arm (21) has a wing plate portion (23) for contacting the opposite electrode (2) and a connector portion (24) for contacting the second end of the conductive component (4). The output shaft of the second motor (22) can reciprocate at a predetermined angle, thereby driving the second swing arm (21) to swing.

10. The method for eliminating electrostatic interference in an air negative ion product according to claim 9, characterized in that: The conductive component (4) is a flexible wire, the second end of which is connected to the connector (24) of the second swing arm (21).

Images