阅读说明：本技术 交流高压电源 (AC high voltage power supply ) 是由 孙卫星 李鹏 杨庆瑞 罗先军 于 2020-07-28 设计创作，主要内容包括：本发明公开了一种交流高压电源,应用于静电消除设备中,包括高压变压器、输入切换模块以及控制模块；其中,所述高压变压器的初级包括多路低压交流输入,次级包括一路高压交流输出,所述输入切换模块分别与所述高压变压器的初级以及所述控制模块电连接；所述高压变压器用于将低压交流输入转化为高压交流输出,所述控制模块用于控制所述输入切换模块切换多路低压交流输入,以调节所述高压交流输出的幅值。上述交流高压电源,通过采用输入切换模块进行高压变压器的输入电压切换,从而实现多种高压幅值输出,输出调节方便,电源适用场景广泛,可以很好地适用于各种规格的静电消除设备,有效提高其消电性能。(The invention discloses an alternating-current high-voltage power supply which is applied to static elimination equipment and comprises a high-voltage transformer, an input switching module and a control module; the input switching module is respectively electrically connected with the primary side of the high-voltage transformer and the control module; the high-voltage transformer is used for converting low-voltage alternating current input into high-voltage alternating current output, and the control module is used for controlling the input switching module to switch the multi-path low-voltage alternating current input so as to adjust the amplitude of the high-voltage alternating current output. According to the alternating-current high-voltage power supply, the input voltage of the high-voltage transformer is switched by the input switching module, so that multiple high-voltage amplitude outputs are realized, the output adjustment is convenient, the power supply application scene is wide, the alternating-current high-voltage power supply can be well suitable for static elimination equipment of various specifications, and the electricity elimination performance of the alternating-current high-voltage power supply is effectively improved.)

1. An alternating current high-voltage power supply is applied to static elimination equipment and is characterized by comprising a high-voltage transformer, an input switching module and a control module; the input switching module is respectively electrically connected with the primary side of the high-voltage transformer and the control module; the high-voltage transformer is used for converting low-voltage alternating current input into high-voltage alternating current output, and the control module is used for controlling the input switching module to switch the multi-path low-voltage alternating current input so as to adjust the amplitude of the high-voltage alternating current output.

2. The ac high voltage power supply of claim 1, wherein the primary of said high voltage transformer comprises a three-way 220V ac input, and said input switching module comprises three ac relays; each alternating current relay is electrically connected with one primary input end, the output control end of each alternating current relay is electrically connected with an alternating current stabilized voltage power supply, and the input control end of each alternating current relay is electrically connected with the control module.

3. The alternating-current high-voltage power supply according to claim 1, wherein the input switching module comprises a multi-gear switch, and each gear of the multi-gear switch is electrically connected with one path of input end of the primary.

4. An ac high voltage power supply according to claim 1, further comprising:

the output monitoring module is respectively and electrically connected with the output end of the secondary and the control module, and is used for monitoring the amplitude of the high-voltage alternating current output and sending a detection signal to the control module; and the control module adjusts the amplitude of the high-voltage alternating current output according to the detection signal.

5. The AC high-voltage power supply according to claim 4, wherein when the detection signal is equal to or lower than a preset high-voltage threshold value, the control module controls the input switching module to cut off the voltage input of the primary side of the high-voltage transformer and send out an alarm signal.

6. The AC high voltage power supply according to claim 4, wherein said output detection module comprises a first resistor, a second resistor, a first capacitor and a first operational amplifier adjustment circuit; one end of the first resistor is electrically connected with the output end of the secondary, and the other end of the first resistor is connected with the second resistor in series; the first capacitor is connected with the second resistor in parallel and is grounded; and a voltage signal on the second resistor forms a detection signal of high-voltage alternating current output through the first operational amplifier regulating circuit.

7. The AC high voltage power supply according to claim 6, wherein said first resistor and said second resistor are high voltage non-inductive resistors, and the resistance of said first resistor is 1000 times that of said second resistor; the first capacitor and the second capacitor are filter capacitors.

8. The ac high voltage power supply of claim 4, further comprising:

and the display module is electrically connected with the control module and used for displaying the amplitude of the high-voltage alternating current output according to the detection signal.

9. An electrostatic eliminating apparatus comprising an ion bar, an electrostatic sensor, and the ac high voltage power supply according to any one of claims 1 to 8, wherein the ac high voltage power supply is electrically connected to the ion bar and the electrostatic sensor, respectively, the ac high voltage power supply is configured to supply power to the ion bar, the ion bar is configured to eliminate static electricity to an object to be eliminated, and the electrostatic sensor is configured to detect an electrostatic voltage on a surface of the object to be eliminated; and the control module of the alternating-current high-voltage power supply adjusts the amplitude of the high-voltage alternating-current output according to the static voltage.

10. The static elimination apparatus according to claim 9, wherein when the static voltage detected by the static sensor is greater than a preset static threshold, the control module controls the input switching module to switch the low-voltage ac input of the high-voltage transformer to increase the amplitude of the high-voltage ac output.

Technical Field

The embodiment of the invention relates to a static elimination technology, in particular to an alternating current high-voltage power supply.

Background

The AC ion bar is a common static electricity eliminating device in industrial manufacture, and the AC high-voltage power source matched with the AC ion bar has very important influence on the electricity eliminating performance of the AC ion bar. The traditional alternating-current high-voltage power supply generally outputs fixed voltage, so that the adaptability to complex electrostatic environment is poor, the traditional alternating-current high-voltage power supply cannot be suitable for ion bars with different specifications, and the situation of insufficient electricity eliminating performance is possibly caused, so that the production is hindered.

Disclosure of Invention

Based on the above technical problem, the invention provides an alternating current high voltage power supply, which can adjust a high voltage output amplitude to be suitable for ion bars with different specifications, and effectively improve the electricity eliminating performance.

In a first aspect, an embodiment of the present invention provides an ac high-voltage power supply, which is applied to a static elimination device, and includes a high-voltage transformer, an input switching module, and a control module; the input switching module is respectively electrically connected with the primary side of the high-voltage transformer and the control module; the high-voltage transformer is used for converting low-voltage alternating current input into high-voltage alternating current output, and the control module is used for controlling the input switching module to switch the multi-path low-voltage alternating current input so as to adjust the amplitude of the high-voltage alternating current output.

According to the alternating-current high-voltage power supply, the input voltage of the high-voltage transformer is switched by the input switching module, so that multiple high-voltage amplitude outputs are realized, the output adjustment is convenient, the power supply application scene is wide, the alternating-current high-voltage power supply can be well suitable for static elimination equipment of various specifications, and the electricity elimination performance of the alternating-current high-voltage power supply is effectively improved.

In one embodiment, the primary of the high voltage transformer comprises a three-way 220V ac input, and the input switching module comprises three ac relays; each alternating current relay is electrically connected with one primary input end, the output control end of each alternating current relay is electrically connected with an alternating current stabilized voltage power supply, and the input control end of each alternating current relay is electrically connected with the control module.

In one embodiment, the input switching module includes a multi-gear switch, and each gear of the multi-gear switch is electrically connected to one input end of the primary.

In one embodiment, the ac high-voltage power supply further includes:

the output monitoring module is respectively and electrically connected with the output end of the secondary and the control module, and is used for monitoring the amplitude of the high-voltage alternating current output and sending a detection signal to the control module; and the control module adjusts the amplitude of the high-voltage alternating current output according to the detection signal.

In one embodiment, when the detection signal is equal to or lower than a preset high-voltage threshold value, the control module controls the input switching module to cut off the voltage input of the primary side of the high-voltage transformer and send out an alarm signal.

In one embodiment, the output detection module comprises a first resistor, a second resistor, a first capacitor and a first operational amplifier adjusting circuit; one end of the first resistor is electrically connected with the output end of the secondary, and the other end of the first resistor is connected with the second resistor in series; the first capacitor is connected with the second resistor in parallel and is grounded; and a voltage signal on the second resistor forms a detection signal of high-voltage alternating current output through the first operational amplifier regulating circuit.

In one embodiment, the first resistor and the second resistor are high-voltage non-inductive resistors, and the resistance of the first resistor is 1000 times that of the second resistor; the first capacitor and the second capacitor are filter capacitors.

In one embodiment, the first resistor is 1000 times as large as the second resistor, and the third resistor is 1000 times as large as the fourth resistor.

In a second aspect, an embodiment of the present invention provides an electrostatic elimination apparatus, including an ion bar, an electrostatic sensor, and the above-mentioned ac high-voltage power supply, where the ac high-voltage power supply is electrically connected to the ion bar and the electrostatic sensor, respectively, the ac high-voltage power supply is configured to supply power to the ion bar, the ion bar is configured to eliminate static electricity to an object to be eliminated, and the electrostatic sensor is configured to detect an electrostatic voltage on a surface of the object to be eliminated; and the control module of the alternating-current high-voltage power supply adjusts the amplitude of the high-voltage alternating-current output according to the static voltage.

Above-mentioned electrostatic elimination equipment switches through the input voltage that adopts the input to switch the module and carry out high voltage transformer to realize multiple high-voltage amplitude output, and can carry out output amplitude's regulation according to the static voltage on the object surface that is destaticized, it is convenient to export the regulation, and applicable scene is extensive, has effectively improved electrostatic elimination equipment's destaticization performance.

In one embodiment, when the static voltage detected by the static sensor is greater than a preset static threshold, the control module controls the input switching module to switch the low-voltage alternating current input of the high-voltage transformer so as to increase the amplitude of the high-voltage alternating current output.

Drawings

FIG. 1 is a block diagram of an embodiment of an AC high voltage power supply;

FIG. 2 is a schematic diagram of an embodiment of an AC high voltage power supply;

FIG. 3 is a schematic diagram of a positive half-cycle detection module in one embodiment;

FIG. 4 is a schematic diagram of the negative half cycle detection module in one embodiment;

FIG. 5 is a schematic diagram of an alternate current high voltage power supply according to another embodiment;

FIG. 6 is a schematic structural view of an electrostatic eliminating apparatus according to an embodiment.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a block diagram of an ac high voltage power supply according to an embodiment, and as shown in fig. 1, an ac high voltage power supply 100 according to an embodiment includes a high voltage transformer 120, an input switching module 140, and a control module 160; the primary 122 of the high-voltage transformer 120 includes multiple low-voltage ac inputs, the secondary 124 includes one high-voltage ac output, and the input switching module 140 is electrically connected to the primary 122 of the high-voltage transformer 120 and the control module 160, respectively; the high voltage transformer 120 is configured to convert a low voltage ac input into a high voltage ac output, and the control module 160 is configured to control the input switching module 140 to switch multiple low voltage ac inputs, so as to adjust the amplitude of the high voltage ac output.

Specifically, the ac high-voltage power supply 100 is configured to supply power to an electrostatic elimination device such as an ac ion bar, and the ac high-voltage power supply 100 is composed of a high-voltage transformer 120, an input switching module 140, and a control module 160, where the high-voltage transformer 120 includes a primary 122 and a secondary 124, the primary 122 is connected to a low-voltage ac input, and the number of the connected ac inputs may be determined according to actual requirements. Each path of low-voltage ac input of the primary 122 corresponds to a different high-voltage output amplitude of the secondary 124, and each path of low-voltage ac input of the primary 122 may be controlled by the control module 160 to be turned on or off by the input switching module 140, where the control module 160 may specifically be a single chip microcomputer control circuit or the like, and the input switching module 140 may specifically be a switching device such as a relay or a multi-gear switch. Therefore, the switching of the multi-path alternating current low-voltage input of the high-voltage transformer 100 can be realized, and further, the switching of the secondary 124 high-voltage alternating current output amplitude of the high-voltage transformer 100 is realized.

Further, characteristics such as the amplitude of each low-voltage ac input of the ac high-voltage power supply 100 and the corresponding high-voltage ac output thereof may be determined according to actual requirements, for example, the low-voltage ac input may generally be 220V, and the high-voltage ac output may be 5000V or more. The alternating-current high-voltage power supply 100 can supply power for alternating-current ion bars of different specifications due to various high-voltage output amplitude values, and is flexible to use and wide in applicability. When static electricity is eliminated, if the static charge carried by the surface of the object to be eliminated is more, the ion bar is required to ionize more positive and negative ions to be neutralized, namely, the high-voltage alternating current output amplitude of the alternating current high-voltage power supply 100 can be increased, so that the static electricity elimination performance of the ion bar is improved, and the static electricity is eliminated more thoroughly.

According to the alternating-current high-voltage power supply 100, the input voltage of the high-voltage transformer is switched by the input switching module, so that various high-voltage amplitude outputs are realized, the output adjustment is convenient, the power supply application scene is wide, the alternating-current high-voltage power supply can be well suitable for static elimination equipment of various specifications, and the static elimination performance is effectively improved.

Fig. 2 is a schematic structural diagram of an ac high-voltage power supply in an embodiment, as shown in fig. 2, in an embodiment, based on the above technical solution, the primary 122 of the high-voltage transformer 120 includes three 220V ac inputs, and the input switching module 140 includes three ac relays 142; each ac relay 142 is electrically connected to one input terminal of the primary stage 122, an output control terminal of the ac relay 142 is electrically connected to the ac regulated power supply 110, and an input control terminal is electrically connected to the control module 160.

Specifically, in high voltage transformer 120, primary 122 has 3 ac 220V inputs, and primary 122 has 3 220VAC (phase) inputs in addition to the 0VAC (neutral) terminal. Secondary 124 has a 1-way high voltage output, and secondary 124 has a ground (PE) and 1 ac high voltage output. The 3 primary inputs correspond to 3 different high voltage amplitude outputs of the secondary 124, the high voltage output amplitude of the secondary 124 can be determined according to actual requirements, and in a specific embodiment, the 3 alternating current 220V inputs can correspond to 5000V, 6000V and 7000V high voltage alternating current outputs respectively.

The input switching module 140 may specifically adopt an ac relay 142, 3 220V input ends of the primary stage 122 of the high voltage transformer 120 are electrically connected to the 3 ac relays 142, respectively, an output control end of the 3 ac relays 142 may be electrically connected to the ac regulated power supply 110, and the ac regulated power supply 110 may specifically include a mains supply input and a voltage regulator circuit. The input control end of the ac relay 142 is electrically connected to the control module 160, so that the control module 160 realizes switching control of the 3-way 220V ac input, and further realizes automatic switching of three high voltage ac output amplitudes of the secondary 124 of the high voltage transformer 100.

In one embodiment, the ac high voltage power supply 100 further comprises: the output monitoring module 170 is electrically connected with the output end of the secondary 124 and the control module 160, respectively, and the output monitoring module 170 is used for monitoring the amplitude of the high-voltage alternating current output and sending a detection signal to the control module 160; the control module 160 adjusts the amplitude of the high voltage ac output based on the detection signal.

Specifically, in the ac high-voltage power supply 100, an output monitoring module 170 may be further configured to detect the amplitude of the high-voltage ac output in real time, where the output monitoring module 170 is electrically connected to the output end of the secondary 124, and detects the high-voltage ac output amplitude of the secondary 124 in real time, and processes the amplitude to obtain a corresponding detection signal, and sends the detection signal to the control module 160. The control module 160 can judge whether the output of the ac high-voltage power supply 100 is appropriate according to the detection signal, if the amplitude of the high-voltage ac output meets the expectation, the processing is not required, if the amplitude of the high-voltage ac output does not meet the expectation, the control module 160 can control the input switching module 140 to switch the low-voltage ac input, adjust the high-voltage ac output, or directly cut off the low-voltage ac input, and overhaul the ac high-voltage power supply 100, so that the real-time state monitoring of the ac high-voltage power supply 100 is realized, and the reliability and the stability of the ac high-voltage power supply 100 are effectively improved.

Further, when the detection signal is equal to or lower than the preset high voltage threshold, the control module 160 controls the input switching module 140 to cut off the voltage input of the primary 122 of the high voltage transformer 120 and issue an alarm signal. The high voltage threshold value output by the ac high voltage power supply 100 may be preset, when the detection signal received by the controller 160 is lower than or equal to the predetermined high voltage threshold value, it indicates that the output of the ac high voltage power supply 100 is abnormal, which may cause the ion bar to fail to perform normal power dissipation, and then may send an alarm signal, and the like, and specifically may alarm a user in the form of an indicator light or sound, and thus when the output of the ac high voltage power supply 100 is attenuated or even damaged, the user may know the fault state in time, so as to perform maintenance and repair on the ac high voltage power supply 100.

Further, due to the existence of dust, moisture, etc. in the use environment, the electrical insulation performance of the ion bar is gradually aged, so that the high voltage amplitude on the electrode pin of the ion bar is gradually reduced, and thus the high voltage output amplitude of the high voltage transformer 100 is also gradually reduced, and when the ion bar is short-circuited due to human or insulation failure, the high voltage ac output of the high voltage transformer 100 is also short-circuited, and the output is 0 VAC. Therefore, the alarm signal can be classified into a cleaning alarm signal and a short circuit alarm signal.

When the ac high voltage power supply 100 is turned on, the output monitoring module 170 detects the ac high voltage amplitude output by the secondary 124 in real time and feeds back the detection signal to the control module 160. After receiving the detection signal, the control module 160 compares the detection signal with a set high voltage threshold, and when the detection signal is less than or equal to the preset high voltage threshold but not 0, the control module 16 may control the relay 142 in the input switching module 142 to cut off the primary voltage input, and send out a cleaning alarm signal to prompt the user to clean the ion bar. When the detection signal is 0V, the control module 16 sends a short-circuit alarm signal after controlling to cut off the primary voltage input, so as to prompt a user to perform short-circuit detection on the ion bar. In a particular embodiment, the clean alarm signal and the short alarm signal may be distinguished by indicator light color, such as the indicator light emitting a yellow light alert when the clean alarm signal is emitted and a red light alert when the short alarm signal is emitted.

In one embodiment, the ac high voltage power supply 100 further comprises: and the display module 180 is electrically connected with the control module 160 and is used for displaying the amplitude of the high-voltage alternating current output according to the detection signal. The ac high-voltage power supply 100 may further include a display screen, and the control module 160 controls the display module 180 to display a corresponding high-voltage output amplitude according to the detection signal, so that a user may monitor the output amplitude of the ac high-voltage power supply 100 in real time, and may better determine the operating state thereof.

In one embodiment, based on the above technical solution, the output detection module 170 includes a first resistor R1, a second resistor R2, a first capacitor C1, and a first operational amplifier adjustment circuit; one end of the first resistor R1 is electrically connected with the output end of the secondary, and the other end is connected with the second resistor R2 in series; the first capacitor C1 is connected in parallel with the second resistor R2 and is grounded; the voltage signal at the second resistor R2 passes through the first op-amp regulator circuit 172 to form a detection signal of the high voltage ac output.

Specifically, in the output detection module 170, the first resistor R1 and the second resistor R2 may be high-voltage non-inductive resistors, the first capacitor C1 is a filter capacitor, wherein the resistance of the first resistor R1 is higher than that of the second resistor R2, the specific resistances of the first resistor R1 and the second resistor R2 may be determined according to actual circuit conditions, and in a preferred embodiment, the resistance of the first resistor R1 may be 1000 times that of the second resistor R2. First resistance R1 of high resistance and the second resistance R2 of low resistance are established ties, and first resistance R1's the other end is connected with high-voltage alternating current output end electricity, and second resistance R2's other end ground connection, from this voltage signal on the second resistance R2 forms detection signal and sends to control module 160 after first operational amplifier regulating circuit. In another embodiment, the voltage signal received by the second resistor R2 can be directly electrically connected to the ac voltage meter to display the output voltage amplitude.

Further, the output detection module 170 may be specifically divided into a positive half cycle detection module and a negative half cycle detection module, fig. 3 is a schematic structural diagram of the positive half cycle detection module in one embodiment, and fig. 4 is a schematic structural diagram of the negative half cycle detection module in one embodiment, as shown in fig. 3 and 4, the positive half cycle detection module and the negative half cycle detection module have similar structures and principles and are respectively used for detecting the voltage amplitudes of the positive half cycle and the negative half cycle of the high-voltage ac output terminal.

Fig. 5 is a schematic structural diagram of an ac high-voltage power supply in another embodiment, as shown in fig. 1, in an embodiment, the ac high-voltage power supply includes an ac regulated power supply 210, a high-voltage transformer 220, a control module 260, an output detection module 270, and a display module 280, which may be respectively the same as the corresponding structures in the foregoing embodiments, in this embodiment, the input switching module 240 includes a multi-position switch 242, and each position of the multi-position switch 242 is electrically connected to one input end of the primary 222.

Specifically, in the ac high-voltage power supply 200, the input switching module 240 may further employ a multi-step switch 242, the multiple low-voltage ac inputs of the primary stage 222 are electrically connected to one step of the multi-step switch 242, and the multi-step switch 242 is electrically connected to the ac regulated power supply 210, so as to switch the high-voltage ac output amplitude. It is understood that the multi-position switch 242 can be switched automatically under the control of the control module 160 or manually by a user as desired. The type of the input switching module is not limited to the relay or the multi-position switch in the above embodiments, and other devices or devices capable of implementing the input voltage switching function may be adopted.

Fig. 6 is a schematic structural diagram of an electrostatic elimination apparatus in an embodiment, as shown in fig. 6, in an embodiment, an electrostatic elimination apparatus 10 includes an ion bar 500, an electrostatic sensor 600, and the ac high voltage power supply 100 in the above embodiments, wherein the ac high voltage power supply 100 is electrically connected to the ion bar 500 and the electrostatic sensor 600, respectively, the ac high voltage power supply 100 is used for supplying power to the ion bar 500, the ion bar 500 is used for performing electrostatic elimination on an object to be eliminated, and the electrostatic sensor 600 is used for detecting an electrostatic voltage on a surface of the object to be eliminated; the control module 160 of the ac high voltage power supply 100 adjusts the magnitude of the high voltage ac output based on the static voltage.

Specifically, the static elimination apparatus 10 is specifically an ac ion bar static elimination apparatus, the static elimination apparatus 10 mainly includes an ion bar 500, an ac high voltage power supply 100, and a static sensor 600, the ion bar 500 is electrically connected to the ac high voltage power supply 100 through a high voltage wire, and the ion bar 500 is provided with an electrode needle 520. In the film winding process, the ion bar 500 is vertically installed right above the film to eliminate the static electricity of the film. The electrostatic sensor 600 is communicatively connected to the ac high voltage power supply 100, and the electrostatic sensor 600 may be installed behind the ion bar 500, perpendicular to the surface of the thin film.

When the static eliminating device 10 works, the static sensor 600 monitors the static voltage on the surface of the object to be eliminated in real time, and the control module 160 of the ac high-voltage power supply 100 can judge the electric eliminating effect according to the detected static voltage, so as to adjust the high-voltage ac output amplitude of the ac high-voltage power supply 100. For example, when the static electricity eliminating apparatus 10 has insufficient electricity eliminating performance and the static electricity detected by the static electricity sensor 600 is too high, the control module 160 may increase the high-voltage ac output amplitude of the ac high-voltage power supply 100 to improve the electricity eliminating performance of the static electricity eliminating apparatus 10, so that the object to be eliminated has good electricity eliminating effect.

In one embodiment, when the static voltage detected by the static sensor 300 is greater than the preset static threshold, the control module 160 controls the input switching module 140 to switch the low-voltage ac input of the high-voltage transformer 120 to increase the amplitude of the high-voltage ac output.

Specifically, a static threshold may be preset, a specific value of the static threshold may be determined according to an actual power consumption requirement, and the controller 160 compares the static voltage detected by the static sensor 600 with the static threshold, and further determines whether the high voltage detection amplitude at this time is equal to the set maximum voltage output amplitude. If the static voltage detected by the static sensor 600 is smaller than the set static threshold, it indicates that the current static elimination capability of the static elimination apparatus 10 meets the requirement, and a good static elimination effect can be achieved, and the current high-voltage ac output amplitude of the high-voltage transformer 120 can be maintained.

If the electrostatic voltage detected by the electrostatic sensor 600 is greater than the electrostatic threshold, this indicates that the operation speed of the film is increased to improve the production efficiency; or in order to improve the compactness and the neatness of the winding, the extrusion force of the film is increased by the winding roller; or the relative humidity of the production environment becomes low, and the like, the static charge on the surface of the object to be discharged increases. The current electricity eliminating capability of the static electricity eliminating device 10 cannot meet the requirement, and the electricity eliminating effect is poor. At this time, the control module 160 further determines whether the current high-voltage ac output detection value is smaller than the preset maximum voltage amplitude, and if the current high-voltage ac output detection value is smaller than the preset maximum voltage amplitude, the control module 160 may control to switch the low-voltage ac input of the high-voltage transformer 120, so that the high-voltage ac output amplitude of the high-voltage transformer 120 is increased, the high voltage of the ion bar 500 is increased accordingly, the positive and negative ion generation amount is increased, and the power dissipation capability of the static electricity elimination device 10 is improved, so as to improve the power dissipation effect. If the detected value of the high-voltage ac output is equal to or greater than the preset maximum voltage amplitude, the control module 160 controls the input switching module 140 to cut off the low-voltage ac input of the high-voltage transformer 120 and send an alarm signal to prevent the electrostatic elimination apparatus 10 from being damaged due to malfunction. Thus, the automatic control of the ac high voltage power supply 100 in the static electricity eliminating apparatus 10 is realized by the static voltage detection and the high voltage amplitude adjustment.

Above-mentioned electrostatic elimination equipment 10 switches through the input voltage that adopts the input to switch the module and carry out high voltage transformer to realize multiple high-voltage amplitude output, and can carry out output amplitude's regulation according to the static voltage on the object surface that is destaged, it is convenient to export the regulation, and applicable scene is extensive, has effectively improved electrostatic elimination equipment's destaticization performance.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above embodiments only represent the preferred embodiments of the present invention and the applied technical principles, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. Numerous variations, changes and substitutions will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in more detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.