An ion rod with its own detection function

Abstract

An ion rod with a detection function belongs to the field of static elimination. At least one side of the cross section of the ion rod core is provided with a grounding electrode for shielding the electromagnetic field induction signal generated during the high-voltage circuit and the high-voltage transmission process; at least one detection electrode is provided on the ion rod core for collecting the discharge ionization signal of the electrode needle; the detection electrode is electrically connected to the detection feedback circuit; the detection feedback circuit uses different detection feedback procedures to adjust the ion rod balance voltage for the discharge ionization signal collected under different working frequencies and working voltages, so as to ensure the long-term stability of the ion rod balance performance under different working parameters and improve the applicability of the ion rod in different use environments or conditions. It is conducive to maintaining the long-term stability of the ion rod balance performance under different working parameters. It can be widely used in the design and manufacturing fields of various ion rods.

Description

Technical Field

[0001] The invention belongs to the field of static elimination, and in particular relates to a rod-type static elimination device used in an active static elimination system. Background Art

[0002] As the requirements for electrostatic protection in production lines of semiconductor devices, liquid crystal flat panel displays or plastic films continue to increase, online and immediate elimination of products is becoming a standard requirement.

[0003] Ion bar is a special equipment for fixed static elimination, which belongs to a kind of active static elimination system product. It has the characteristics of easy installation, safe and stable operation, and fast static elimination speed.

[0004] At present, there are various brands of pulse AC ion rods on the market. Most of these ion rods do not have the detection and feedback function of ion balance. Even if there are ion rods with this function, their detection and feedback devices and methods are relatively simple, and can only qualitatively realize simple detection and alarm functions (such as: 1. Cleaning alarm function, when dust adheres to the electrode needle or the electrode needle is passivated due to electrocorrosion, the number of positive and negative ions produced will eventually decrease, and the detected signal value will become smaller. When it is lower than the set value, a cleaning alarm will be output; 2. High-voltage fault alarm function, when the high-voltage module is damaged, the signal value will not be detected, and a high-voltage fault alarm will be issued.), and the feedback adjustment function is basically unavailable. This will shorten the time for the ion rod to maintain a good ion balance, and the long-term stability of the ion balance will be poor.

[0005] like Figure 1 As shown in the figure, the structure of the existing ion rod generally includes an ion rod core 1 (for the gas source type ion rod, an air cavity 6 is also provided in the ion rod core), an electrode holder 4 is provided on the ion rod core, an electrode needle 5 is fixed in the electrode holder, the electrode needle is electrically connected to the high voltage component 2 through the electrode needle sleeve 3, and a stainless steel electrode 7 (also called a U-shaped stainless steel detection device) is also provided on the surface of the ion rod core.

[0006] The stainless steel electrode 7 of the existing ion rod is mostly a U-shaped direct grounding electrode, which plays a role in forming a fixed electric field between the electrode needle 5, so that the tip of the electrode needle generates corona discharge, releasing positive and negative ions to eliminate the static charge on the surface of the object; in addition, a few U-shaped stainless steel electrodes of the existing ion rods are configured as detection and feedback electrodes. Although this structure can detect electrical signals, most of them are electromagnetic field induction signals generated by high-voltage components and / or high-voltage transmission circuits, rather than mainly discharge ionization signals (i.e., electrical signals formed by the movement of positive and negative ions ionized by the electrode needle themselves), and the discharge ionization signal is an electrical signal that plays a direct and important role in ion balance.

[0007] From another perspective, Figure 2a and Figure 2b As shown in the figure, the high-voltage component 2 in the rod core and the electrode needle sleeve 3 in the air cavity 6 will transmit the electromagnetic radiation field to the surrounding space due to the presence of alternating high voltage or changing direct current on them; and the U-shaped stainless steel electrode 7 is wrapped around them. The U-shaped stainless steel electrode is always at a low potential, so most of the electrical signals it receives are electromagnetic induction signals, rather than ion current signals generated by the discharge ionization of the electrode needle.

[0008] Because the pulsed AC / pulsed DC ion bar can be set to work at different frequencies and voltages (this function is designed to cope with different installation distances), and when the ion bar is at different frequencies and voltages, the detected electrical signals are completely different; in this case, it is not possible to use only one detection feedback program to process the detected electrical signals and use it to feedback and adjust the ion balance.

[0009] Therefore, in actual design and product manufacturing, it is necessary to design an ion rod structure that can detect the discharge ionization signal. Summary of the invention

[0010] The technical problem to be solved by the present invention is to provide an ion rod with a detection function. On the basis of the existing ion rod structure, a special detection electrode is provided, which can shield most of the electromagnetic field induction signals generated in the high-voltage circuit and the high-voltage transmission process, greatly reducing the influence of the electromagnetic field generated by the high-voltage component and / or the high-voltage transmission circuit on the collection of discharge ionization signals, and at the same time improving the collection ratio of the discharge ionization signals. And it can adopt different detection feedback procedures to adjust the ion rod balance voltage according to the discharge ionization signals received under different operating frequencies and voltages, which is more convenient to maintain the long-term stability of the ion rod balance performance under different operating parameters.

[0011] The technical solution of the present invention is to provide an ion rod with a detection function, including an ion rod core, a high voltage component, an electrode needle sleeve and an air cavity are arranged in the ion rod core, an electrode seat is arranged on the surface of the ion rod core, an electrode needle is arranged in the electrode seat, and the electrode needle is electrically connected to the high voltage component through the electrode needle sleeve; a stainless steel electrode is arranged on the outside of the ion rod core; and its characteristics are:

[0012] The stainless steel electrode is arranged on at least one side of the cross section of the ion rod core to form a grounding electrode for shielding the electromagnetic field induction signal generated during the high-voltage circuit and the high-voltage transmission process;

[0013] At least one detection electrode is arranged on the ion rod core;

[0014] The detection electrodes are arranged on both sides or around the ionization generating part, and the detection electrodes are used to collect the discharge ionization signal of the electrode needle;

[0015] The detection electrode is electrically connected to a detection feedback circuit.

[0016] Specifically, the stainless steel electrodes are strip-shaped grounding electrodes, which are arranged on both sides of the cross section of the ion rod core.

[0017] The ionization generating part includes an electrode seat.

[0018] Furthermore, the ionization generating part includes the tip of the electrode needle located in the electrode seat.

[0019] The cross section of the detection electrode is rectangular, arc-shaped, ring-shaped or circular line-shaped.

[0020] Specifically, the ground electrode or the detection electrode is arranged on the outer surface of the ion rod core, or is embedded on or in the body of the ion rod core.

[0021] The technical solution of the present invention also provides an ion rod with a detection function, including an ion rod core, on which a grounding electrode is arranged; the characteristics are:

[0022] The grounding electrode is arranged on at least one side of the cross section of the ion rod core, and is used to shield the high voltage circuit and the electromagnetic field induction signal generated during the high voltage transmission process;

[0023] At least one detection electrode is also arranged on the ion rod core for receiving the discharge ionization signal at the ionization occurrence position;

[0024] The detection electrode is electrically connected to a detection feedback circuit;

[0025] The output end of the detection feedback circuit is correspondingly connected to the control end of the ion rod high voltage circuit;

[0026] The detection feedback circuit adopts different detection feedback procedures to adjust the ion rod balance voltage for the discharge ionization signals collected under different working frequencies and working voltages, so as to ensure the long-term stability of the ion rod balance performance under different working parameters and improve the applicability of the ion rod in different use environments or conditions.

[0027] Specifically, when the ion rod is under a certain set working frequency and working voltage, the detection feedback circuit reads the working frequency parameter f in this state. i And the working voltage parameter u i , and the discharge ionization signal s detected by the detection electrode i , call the corresponding feedback adjustment subroutine p i To balance the ion rod voltage B i Make adjustments;

[0028] The feedback regulation subroutine regulates the ion rod equilibrium voltage by changing the duty cycle and voltage of the ion rod or electrode needle working voltage.

[0029] Furthermore, the relationship between the discharge ionization signal s and the ion balance voltage B is expressed by the following functional relationship:

[0030] s = φ(B);

[0031] Wherein, when B = -30V, s = sA;

[0032] When B=+30V, s=sB.

[0033] Furthermore, when the discharge ionization signal s<sA, the feedback regulation subroutine will gradually increase the duty cycle or the positive voltage to make sA<s<sB;

[0034] When the discharge ionization signal s>sB, the feedback regulation subroutine will gradually reduce the duty cycle or positive voltage to make sA<s<sB;

[0035] When the duty cycle is adjusted to exceed dA≤d≤dB, or when the positive voltage value is adjusted to exceed uA≤u≤uB, the feedback adjustment subroutine is terminated and an ion balance alarm or a cleaning alarm is issued;

[0036] Where, d is the duty cycle, dA is the duty cycle when B = -30V, and dB is the duty cycle when B = +30V;

[0037] u is a positive voltage value, uA is the positive voltage when B=-30V, and uB is the positive voltage when B=+30V.

[0038] Compared with the prior art, the advantages of the present invention are:

[0039] 1. After adopting the grounding electrode and detection electrode structure of this technical solution, most of the electromagnetic field induction signals generated in the high-voltage circuit and the high-voltage transmission process can be shielded, which greatly improves the collection ratio of the discharge ionization signal, thereby providing the most direct and critical basic signal for adjusting the stability of the ion rod balance voltage;

[0040] 2. After adopting this technical solution, since the discharge ionization signals collected and processed under different working frequencies and voltages are used, different detection feedback procedures are adopted to adjust the ion rod balance voltage, which will be more conducive to maintaining the long-term stability of the ion rod balance performance under different working parameters, and greatly improve the applicability of the ion rod in different usage environments (or usage conditions). BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of the existing ion rod;

[0042] Figure 2a and Figure 2b It is a schematic diagram of the distribution of positive high voltage electric field and negative high voltage electric field around the existing ion rod;

[0043] Figure 3a It is a basic structural schematic diagram of the ion rod of the present invention;

[0044] Figure 3b yes Figure 3a Schematic diagram of the cross-sectional structure of the detection electrode;

[0045] Figure 3c yes Figure 3a Schematic diagram of the top view structure of the detection electrode;

[0046] Figure 4a A schematic structural diagram of an embodiment of the ion rod of the present invention;

[0047] Figure 4b yes Figure 4a Schematic diagram of the cross-sectional structure of the detection electrode;

[0048] Figure 4c yes Figure 4a Schematic diagram of the top view structure of the detection electrode;

[0049] Figure 5a A schematic structural diagram of another embodiment of the ion rod of the present invention;

[0050] Figure 5b yes Figure 5a Schematic diagram of the cross-sectional structure of the detection electrode;

[0051] Figure 5c yes Figure 5a Schematic diagram of the top view structure of the detection electrode;

[0052] Figure 6a A schematic structural diagram of another embodiment of the ion rod of the present invention;

[0053] Figure 6b yes Figure 6a Schematic diagram of the cross-sectional structure of the detection electrode;

[0054] Figure 6c yes Figure 6a Schematic diagram of the top view structure of the detection electrode;

[0055] Figure 7 It is a flowchart of the detection method of the present invention.

[0056] In the figure, 1 is the ion rod core, 2 is the high voltage component, 3 is the electrode needle sleeve, 4 is the electrode holder, 5 is the electrode needle, 6 is the air cavity, 7 is the stainless steel electrode, 8 is the detection electrode, 8-1 is the round through hole, and 8-2 is the rectangular through hole. DETAILED DESCRIPTION

[0057] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0058] like Figure 3a As shown in the figure, the technical solution of the present invention provides an ion rod with a detection function, including an ion rod core 1, a high-voltage component 2, an electrode needle sleeve 3 and an air cavity 6 are arranged in the ion rod core, an electrode seat 5 is arranged on the surface of the ion rod core, an electrode needle 6 is arranged in the electrode seat, and the electrode needle is electrically connected to the high-voltage component through the electrode needle sleeve; a stainless steel electrode 7 is arranged on the outside of the ion rod core; the invention lies in:

[0059] The stainless steel electrode 7 is arranged on at least one side of the ion rod core 1 ( Figure 3a In the figure, it is represented by being arranged on both sides of the cross section of the ion rod core) to form a grounding electrode.

[0060] In the technical solution of the present invention, the grounding electrode is used to shield the electromagnetic field induction signals generated during the high-voltage circuit, the high-voltage line and the high-voltage transmission process.

[0061] At least one detection electrode 8 is arranged on the ion rod core.

[0062] The detection electrodes are arranged on both sides or around the ionization occurrence site; the detection electrodes are used to collect the discharge ionization signal of the electrode needle.

[0063] The detection electrode is electrically connected to the detection feedback circuit.

[0064] The stainless steel electrodes are strip-shaped grounding electrodes, which are arranged on both sides of the cross section of the ion rod core.

[0065] The ionization generating part thereof includes the electrode seat 4 .

[0066] Furthermore, the ionization occurrence site includes the needle tip of the electrode needle 5 located in the electrode seat.

[0067] The cross section of the detection electrode is rectangular, arc-shaped, ring-shaped or circular line-shaped.

[0068] As attached Figure 3a , 3c , 4a, 4c, 5a, 5c and Figure 6a , 6c As shown in , in the technical solution of the present invention, the ground electrode 7 and the detection electrode 8 are both arranged along the longitudinal length direction of the ion rod core.

[0069] The technical solution of the present invention also provides an ion rod with a detection function, including an ion rod core, on which a ground electrode is arranged; the invention lies in:

[0070] At least one detection electrode is also arranged on the ion rod core; the detection electrode is used to receive the discharge ionization signal of the ionization occurrence position.

[0071] The detection electrode is electrically connected to a detection feedback circuit;

[0072] The output end of the detection feedback circuit is connected to the control end of the ion rod high voltage circuit accordingly;

[0073] The detection feedback circuit uses different detection feedback procedures to adjust the ion rod balance voltage for the discharge ionization signals collected under different operating frequencies and operating voltages, so as to ensure the long-term stability of the ion rod balance performance under different operating parameters and improve the applicability of the ion rod in different use environments or conditions.

[0074] Specifically, when the ion rod is at a certain set working frequency and working voltage, the detection feedback circuit reads the working frequency parameter fi and the working voltage parameter ui in this state, as well as the detected discharge ionization signal, and calls the corresponding feedback adjustment subroutine pi to adjust the ion rod balance voltage;

[0075] The feedback regulation subroutine adjusts the ion rod balance voltage by changing the duty cycle and voltage of the working voltage.

[0076] Furthermore, the relationship between the discharge ionization signal s and the ion equilibrium voltage B is expressed by the following functional relationship:

[0077]

[0078] Wherein, when the ion balance voltage B = -30V, the discharge ionization signal s = sA;

[0079] When the ion balance voltage B=+30V, the discharge ionization signal s=sB.

[0080] When the discharge ionization signal s<sA, the feedback regulation subroutine will gradually increase the duty cycle or positive voltage to make sA<s<sB;

[0081] When the discharge ionization signal s>sB, the feedback regulation subroutine will gradually reduce the duty cycle or positive voltage to make sA<s<sB;

[0082] When the duty cycle is adjusted to exceed dA≤d≤dB, or when the positive voltage value is adjusted to exceed uA≤u≤uB, the feedback adjustment subroutine is terminated and an ion balance alarm or a cleaning alarm is issued;

[0083] Where, d is the duty cycle, dA is the duty cycle when B = -30V, and dB is the duty cycle when B = +30V;

[0084] u is a positive voltage value, uA is a positive voltage when B = -30V, and uB is a positive voltage when B = +30V.

[0085] Where, d is the duty cycle, dA is the duty cycle when B = -30V, and dB is the duty cycle when B = +30V;

[0086] u is a positive voltage value, uA is the positive voltage when B=-30V, and uB is the positive voltage when B=+30V.

[0087] In summary, the key points of the technical solution of the present invention are:

[0088] 1. On both sides of the ion rod core, a strip grounding electrode is set. This electrode is the electrode with the lowest potential (zero potential) around the high-voltage component of the ion rod and the electrode needle sleeve, and is closest to the high-voltage generating part (high-voltage component) and the high-voltage transmission part (electrode needle sleeve), which will attract most of the electromagnetic induction energy;

[0089] 2. A detection electrode is arranged on each side of the electrode holder. The detection electrode is electrically connected to the detection feedback circuit. Its potential will be higher than that of the ground electrode. It is mainly used to receive the discharge ionization signal. That is, the detection electrode is arranged near the ionization occurrence site (electrode needle tip).

[0090] 3. When the ion rod is at a certain set operating frequency and voltage (such as operating frequency f1 and operating voltage u1), the detection and feedback program reads the state parameters (f1, u1) and calls the corresponding feedback adjustment subroutine p1 to adjust the ion rod balance voltage.

[0091] The relationship between the detection signal s and the ion balance B can be expressed by the functional relationship:

[0092] s = φ(B);

[0093] When B = -30V, s = sA; when B = +30V, s = sB. When the electrostatic detection signal s < sA, the feedback adjustment subroutine will gradually increase the duty cycle or positive voltage to make sA < s < sB; when the electrostatic detection signal s > sB, the feedback adjustment subroutine will gradually decrease the duty cycle or positive voltage to make sA < s < sB.

[0094] The range of adjusting the duty cycle or the positive voltage is limited, that is, when the adjusted duty cycle exceeds dA≤d≤dB, or the adjusted positive voltage value exceeds uA≤u≤uB, the feedback adjustment subroutine is terminated and an ion balance alarm or a cleaning alarm is issued.

[0095] The implementation of this technical solution can produce the following beneficial effects:

[0096] 1. The structural setting of the grounding electrode and the detection electrode in this technical solution can shield most of the electromagnetic field induction signals generated in the high-voltage circuit and the high-voltage transmission process, greatly improving the collection ratio of the discharge ionization signal, and thus providing the most direct and critical basic signal for adjusting the stability of the ion rod balance voltage.

[0097] 2. Since the discharge ionization signals collected and processed at different operating frequencies and voltages in this technical solution adopt different detection feedback adjustment subroutines to adjust the ion rod balance voltage, it will be more conducive to maintaining the long-term stability of the ion rod balance performance under different operating parameters, and greatly improve the applicability of the ion rod in different usage environments (or usage conditions).

[0098] Example:

[0099] Embodiment 1:

[0100] The structure of the entire ion rod can be found in Figure 3a , Figure 3b , Figure 3c As shown in , the flow chart of the detection method can be found in Figure 7 shown.

[0101] 1) The strip stainless steel grounding electrode 7 is arranged on both sides of the ion rod core 1, so that it is parallel to the electrode needle sleeve 3, ensuring the shortest space distance between them, so that the electromagnetic field is concentrated more and faster on the grounding electrode; because of the barrier of air and insulating rod core, high voltage breakdown will not occur between them.

[0102] 2) The detection electrode 8 is arranged on both sides of the electrode holder to detect the ion flow ionized by the electrode needle; because the detection electrode is closer to the electrode needle tip than the ground electrode, the electric field relationship will be established first, so that the proportion of discharge ionization signal in the collected signal is greatly increased.

[0103] 3) The detection electrode is electrically connected to a detection feedback circuit, and the detection feedback circuit has a built-in detection feedback adjustment subroutine.

[0104] The detection feedback circuit in this technical solution is a single chip circuit, embedded chip circuit or module that has detection value comparison and selects to output different control instructions according to the comparison result. Since this part belongs to the prior art, its circuit structure, working process and electrical connection method are not described here.

[0105] 4) When the ion rod is a pulsed AC ion rod or a pulsed DC ion rod, it can be set to work at different frequencies and voltages.

[0106] 5) When the ion rod works at different frequencies and voltages, the discharge ionization conditions of its electrode needles are completely different, so the discharge ionization signals collected by the detection electrodes are also different. Therefore, it is necessary to set a corresponding feedback adjustment subroutine for each working frequency and voltage.

[0107] 6) If the ion rod has 7 sets of working frequencies and voltages, 7 sets of feedback adjustment subroutines must be set. When the ion rod is at a certain set working frequency and voltage (such as working frequency f1 and working voltage u1), the detection and feedback program will read the parameters (f1, u1) of the ion rod in this state, and then call the corresponding feedback adjustment subroutine p1 to adjust the ion rod balance voltage.

[0108] Furthermore, the specific contents of each feedback adjustment subroutine are as follows:

[0109] Feedback Regulation Subroutine When B = -30 volts, s1 = s1A; when B = +30 volts, s1 = s1B;

[0110] Feedback Regulation Subroutine When B = -30 volts, s2 = s2A; when B = +30 volts, s2 = s2B;

[0111] Feedback Regulation Subroutine When B = -30 volts, s3 = s3A; when B = +30 volts, s3 = s3B;

[0112] Feedback Regulation Subroutine When B = -30 volts, s4 = s4A; when B = +30 volts, s4 = s4B;

[0113] Feedback Regulation Subroutine When B = -30 volts, s5 = s5A; when B = +30 volts, s5 = s5B;

[0114] Feedback Regulation Subroutine When B = -30 volts, s6 = s6A; when B = +30 volts, s6 = s6B;

[0115] Feedback Regulation Subroutine When B = -30 volts, s7 = s7A; when B = +30 volts, s7 = s7B.

[0116] 7) The relationship between the discharge ionization signal (i.e., the detection signal detected by the detection electrode, the same below) s and the ion balance B can be expressed by the functional relationship: When B = -30V, s = sA; when B = +30V, s = sB. When the electrostatic detection signal s < sA, the feedback adjustment subroutine will gradually increase the duty cycle or positive voltage to make sA < s < sB; when the electrostatic detection signal s > sB, the feedback adjustment subroutine will gradually decrease the duty cycle or positive voltage to make sA < s < sB.

[0117] 8) When B=0V, s=s0, the feedback regulation subroutine will suspend adjusting the duty cycle and voltage.

[0118] 9) The duty cycle adjustment range is set to dA≤d≤dB, or the ion balance voltage adjustment range is set to uA≤u≤uB. If it exceeds the adjustment range, the feedback adjustment subroutine is terminated and an ion balance alarm or a cleaning alarm is issued.

[0119] That is, when the duty cycle is adjusted to d>dB or d<dA, no matter whether the detection signal is adjusted to: sA<s<sB, the ion balance alarm or cleaning alarm is still issued;

[0120] Alternatively, when the ion balance is adjusted to a voltage of u>uB or u<uA, the ion balance alarm or the cleaning alarm is still issued regardless of whether the detection signal is adjusted to: sA<s<sB.

[0121] Obviously, in this embodiment, the cross section of the detection electrode is arc-shaped and is arranged / fixed on the outer surface of the ion rod core.

[0122] In the technical solution of the present invention, the cross-section of the detection electrode can be rectangular, arc-shaped, ring-shaped or circular line-shaped. It can be arranged on the outer surface of the ion rod core or embedded on or in the body of the ion rod core, depending on the needs of the customer or technical requirements, mainly depending on the detection sensitivity and detection field strength required by the ion rod.

[0123] Embodiment formula 2:

[0124] The structure of the entire ion rod can be found in Figure 4a , Figure 4b , Figure 4c as shown in .

[0125] The difference between Example 2 and Example 1 is only the structure and placement of the detection electrodes.

[0126] 1) The detection electrodes are in the shape of long strips, and round through holes 8 - 1 are arranged in the middle at the same intervals. The diameter of the round through holes matches the screw-in size of the electrode holder 4 .

[0127] 2) Place the detection electrode tightly against the bottom plane of the rod core, the through hole of the detection electrode corresponds to the screw-in hole of the electrode seat on the rod core, and then screw the electrode seat onto the rod core, so that the strip detection electrode will fit tightly between the electrode seat and the rod core.

[0128] The rest is the same as in Example 1.

[0129] Embodiment 3:

[0130] The structure of the entire ion rod can be found in Figure 5a , Figure 5b , Figure 5c as shown in .

[0131] The only difference between Example 3 and Example 2 is that, based on the structure of Example 2, a rectangular through hole 8 - 2 is provided between adjacent round through holes 8 - 1 , and the width of the rectangular through hole is consistent with the diameter of the round through hole.

[0132] The rest is the same as in Example 1 or 2.

[0133] Embodiment 4:

[0134] The structure of the entire ion rod can be found in Figure 6a , Figure 6b , Figure 6c as shown in .

[0135] 1) On the plane at the bottom of the rod core, along the length direction of the rod core, two long strip detection electrodes of the same shape are embedded on both sides of the screw-in hole of the electrode seat of the rod core, and the two detection electrodes are parallel to each other.

[0136] 2) Screw the electrode holder onto the rod core, so that the two strip-shaped detection electrodes are clamped between the electrode holder 4 and the rod core 1.

[0137] Obviously, in this embodiment, the detection electrode is located in the rod core body of the ion rod core.

[0138] The rest is the same as before.

[0139] The purpose of adopting the above embodiments is to find the best signal detection mode so as to achieve the best ion balance stability performance.

[0140] The implementation of the technical solution of the present invention will greatly reduce the influence of the electromagnetic field generated by the high-voltage component and / or the high-voltage transmission circuit (line) on the collection of the discharge ionization signal, and at the same time improve the collection ratio of the discharge ionization signal. Because the pulse AC / DC ion rod may be set at different operating frequencies and voltage states, and under different operating frequencies and voltage states, the detection and feedback device will receive different discharge ionization signals. For the discharge ionization signals received under different operating frequencies and voltages, different detection feedback programs are adopted to adjust the ion rod balance voltage, which will be more conducive to maintaining the long-term stability of the ion rod balance performance under different operating parameters.

[0141] The technical solution of the present invention can be widely applied to the design and manufacturing fields of various ion rods.

Claims

1. An ion rod with a detection function, comprising an ion rod core, a high voltage component, an electrode needle sleeve and an air cavity are arranged in the ion rod core, an electrode seat is arranged on the surface of the ion rod core, an electrode needle is arranged in the electrode seat, and the electrode needle is electrically connected to the high voltage component through the electrode needle sleeve; its characteristics are: A stainless steel electrode is arranged outside the ion rod core; The stainless steel electrode is arranged on at least one side of the cross section of the ion rod core to form a grounding electrode; The grounding electrode is used to shield the high voltage circuit and the electromagnetic field induction signal generated during the high voltage transmission process; At least one detection electrode is arranged on the ion rod core; The detection electrodes are arranged on both sides or around the ionization occurrence site; The detection electrode is used to collect the discharge ionization signal of the electrode needle; The detection electrode is electrically connected to a detection feedback circuit; The ion rod with its own detection function adopts different detection feedback procedures to adjust the ion rod balance voltage according to the discharge ionization signals received under different working frequencies and voltages, so as to maintain the long-term stability of the ion rod balance performance under different working parameters.

2. The ion rod with detection function according to claim 1, characterized in that The stainless steel electrodes are strip-shaped grounding electrodes, which are arranged on both sides of the cross section of the ion rod core.

3. The ion rod with detection function according to claim 1, characterized in that The ionization generating part includes an electrode seat.

4. The ion rod with detection function according to claim 1, characterized in that The ionization generating part includes the electrode needle tip part located in the electrode seat.

5. The ion rod with detection function according to claim 1, characterized in that The cross section of the detection electrode is rectangular, arc-shaped, ring-shaped or circular line-shaped.

6. The ion rod with detection function according to claim 1, characterized in that The ground electrode or the detection electrode is arranged on the outer surface of the ion rod core, or is embedded on or in the body of the ion rod core.

7. An ion rod with a detection function, comprising an ion rod core, on which a grounding electrode is arranged; wherein: The grounding electrode is arranged on at least one side of the cross section of the ion rod core, and is used to shield the high voltage circuit and the electromagnetic field induction signal generated during the high voltage transmission process; At least one detection electrode is also arranged on the ion rod core; The detection electrode is used to receive the discharge ionization signal at the ionization occurrence site; The detection electrode is electrically connected to a detection feedback circuit; The output end of the detection feedback circuit is correspondingly connected to the control end of the ion rod high voltage circuit; The detection feedback circuit adopts different detection feedback procedures to adjust the ion rod balance voltage for the discharge ionization signals collected under different working frequencies and working voltages, so as to ensure the long-term stability of the ion rod balance performance under different working parameters and improve the applicability of the ion rod under different use environments or conditions; The ion rod adopts different detection feedback procedures to adjust the ion rod balance voltage according to the discharge ionization signals received under different working frequencies and voltages, so as to maintain the long-term stability of the ion rod balance performance under different working parameters; When the ion rod is under a certain set working frequency and working voltage, the detection feedback circuit reads the working frequency parameter f in this state. i And the working voltage parameter u i , and the discharge ionization signal s detected by the detection electrode i , call the corresponding feedback adjustment subroutine p i To balance the ion rod voltage B i Make adjustments; The feedback regulation subroutine p i The ion rod balance voltage can be adjusted by changing the duty cycle and voltage of the ion rod or electrode needle working voltage.

8. The ion rod with detection function according to claim 7, characterized in that The relationship between the discharge ionization signal s and the ion balance voltage B is expressed by the following functional relationship: s = φ(B); Wherein, when B = -30V, s = sA; When B=+30V, s=sB.

9. The ion rod with detection function according to claim 7, characterized in that When the discharge ionization signal s<sA, the feedback regulation subroutine will gradually increase the duty cycle or positive voltage to make sA<s<sB; When the discharge ionization signal s>sB, the feedback regulation subroutine will gradually reduce the duty cycle or positive voltage to make sA<s<sB; When the duty cycle is adjusted to exceed dA≤d≤dB, or when the positive voltage value is adjusted to exceed uA≤u≤uB, the feedback adjustment subroutine is terminated and an ion balance alarm or a cleaning alarm is issued; Where, d is the duty cycle, dA is the duty cycle when B = -30V, and dB is the duty cycle when B = +30V; u is a positive voltage value, uA is the positive voltage when B=-30V, and uB is the positive voltage when B=+30V.

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