Plasma generation device, air conditioner, electronic equipment and circuit control method

Abstract

The embodiment of the invention discloses a plasma generating device, an air conditioner, electronic equipment and a circuit control method. The device comprises a signal generator, a signal amplification circuit, a plasma generator, a switching circuit and N lamps, n is an integer greater than or equal to 1; wherein the signal generator is used for generating square wave pulse signals, the input end of the signal amplification circuit is connected with the output end of the signal generator, and the output end of the signal amplification circuit is connected with the plasma generator; and the switching circuit is used for controlling the on-off of at least one lamp in the N lamps according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator.

Description

Technical Field

[0001] The present application relates to plasma technology, and in particular to a plasma generating device, an air conditioner, an electronic device and a circuit control method. Background Art

[0002] In related technologies, low-temperature plasma technology can be used to purify the air, and can achieve powerful sterilization, purification, deodorization and other functions in the air. In actual scenarios, high-frequency discharge can be used to generate plasma; plasma contains a large number of high-energy electrons, positive and negative ions, excited particles and free radicals with strong oxidizing properties. However, the function of using plasma to purify the air has the problem of low perceptibility. Summary of the invention

[0003] Embodiments of the present application provide a plasma generating device, an air conditioner, an electronic device, and a circuit control method.

[0004] The plasma generating device provided in the embodiment of the present application includes: a signal generator, a signal amplifying circuit, a plasma generator, a switching circuit and N lamps; N is an integer greater than or equal to 1; wherein,

[0005] The signal generator is used to generate a square wave pulse signal, the input end of the signal amplifying circuit is connected to the output end of the signal generator, and the output end of the signal amplifying circuit is connected to the plasma generator; the switching circuit is used to control the on and off of at least one of the N lamps according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator.

[0006] In some embodiments, the signal generator includes a time controller, an inverter and a voltage controller; wherein the time controller is used to generate a basic square wave pulse signal, the inverter is connected between the output end of the time controller and the input end of the voltage controller, and the voltage controller is used to generate the square wave pulse signal by adjusting the amplitude of the signal received by itself.

[0007] It can be seen that the embodiment of the present application can generate a basic square wave pulse signal that meets the preset requirements through a time controller, and can generate a square wave pulse signal whose amplitude meets the preset requirements through a voltage controller, thereby facilitating the control of the working state of the plasma generator through a signal amplification circuit.

[0008] In some embodiments, the switching circuit includes a switching tube, a control end of the switching tube is connected to the output end of the time controller, the switching tube is connected between the direct power supply and the ground, and one end of the switching tube connected to the DC power supply is connected to the N lamps.

[0009] It can be seen that the embodiment of the present application can control the conduction and cutoff of the light-opening tube according to the level signal output by the time controller, thereby controlling the state of N lamps. The lighting time of the N lamps is consistent with the time when the plasma generator is in the working state, so that it can be more accurately judged whether the plasma generator is working according to the on-off state of the lamp, which enhances the perceptibility of the plasma generator when it is working and realizes the visual perception of the plasma generator when it is working.

[0010] In some embodiments, the switch tube is an insulated gate bipolar transistor (IGBT), a metal-oxide semiconductor (MOS) field effect transistor (FET), a silicon carbide switch tube or a gallium nitride switch tube. In this way, the embodiment of the present application can flexibly select the type of switch tube according to actual conditions, which is conducive to application in various scenarios.

[0011] In some embodiments, the N lamps are N lamps connected in parallel; the switching circuit includes a controller, the input end of the controller is connected to the output end of the voltage controller, and the i-th control signal output end among the N control signal output ends of the controller is used to control the on and off of the i-th lamp among the N lamps, and i is an integer less than or equal to N.

[0012] It can be seen that since the input end of the controller is connected to the output end of the voltage controller, and the control signal output end of the controller is used to control the on and off of the lamp, the controller can control the on and off of the lamp according to the signal output by the voltage controller; and the signal output by the voltage controller can be used to drive the plasma generator to work after being processed by the signal amplification circuit, thereby facilitating a more accurate judgment of whether the plasma generator is working according to the on and off state of the lamp, thereby enhancing the perceptibility of the plasma generator when working and realizing visual perception of the plasma generator when working.

[0013] In some embodiments, the controller is used to determine the voltage value of the plasma generator based on the pre-acquired amplification factor of the signal amplification circuit and the amplitude of the received square wave pulse signal; and control the on and off of at least one of the N lamps based on the voltage value of the plasma generator.

[0014] It can be seen that the embodiment of the present application can determine the voltage value of the plasma generator more accurately according to the amplification factor of the signal amplification circuit and the amplitude of the square wave pulse signal. Thus, the on and off of the lamps among N lamps can be controlled more accurately according to the voltage value of the plasma generator. That is, it is helpful to accurately judge the voltage value of the plasma generator according to the status of the lamps among the N lamps, and is helpful to realize the perception of the voltage strength of the plasma generator.

[0015] In some embodiments, the controller is used to determine the number of lamps that need to be turned on among the N lamps according to the voltage value of the plasma generator, and control the on and off of at least one of the N lamps according to the number of lamps that need to be turned on among the N lamps; wherein the voltage value of the plasma generator is positively correlated with the number of lamps that need to be turned on among the N lamps.

[0016] It can be seen that since the voltage value of the plasma generator is positively correlated with the number of lamps that need to be turned on among the N lamps, the voltage value of the plasma generator can be more accurately judged according to the number of lamps that are in the lighting state among the N lamps, which is conducive to the perception of the voltage strength of the plasma generator.

[0017] An air conditioner provided in an embodiment of the present application comprises any one of the above-mentioned plasma generating devices.

[0018] The present application provides an electronic equipment air conditioner, comprising any one of the above-mentioned plasma generating devices.

[0019] A circuit control method provided in an embodiment of the present application is applied to a plasma generating device, wherein the device comprises: a signal generator, a signal amplifying circuit, a plasma generator, a switching circuit and N lamps; N is an integer greater than or equal to 1; the signal generator is used to generate a square wave pulse signal, the input end of the signal amplifying circuit is connected to the output end of the signal generator, and the output end of the signal amplifying circuit is connected to the plasma generator; the method comprises: the switching circuit controls the on and off of at least one of the N lamps according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator.

[0020] It can be seen that in the embodiment of the present application, since the switching circuit can control the on and off of at least one lamp according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator, the on and off of at least one lamp is determined by the level state and / or signal amplitude of the square wave pulse signal; and the square wave pulse signal can be output to the plasma generator after being amplified by the signal amplification circuit, thereby driving the plasma generator to work, so that it is possible to more accurately judge whether the plasma generator is working according to the on and off state of the lamp, thereby enhancing the perceptibility of the plasma generator during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a plasma generating device according to an embodiment of the present application;

[0022] Figure 2 A schematic structural diagram of another plasma generating device according to an embodiment of the present application;

[0023] Figure 3 This is a schematic structural diagram of another plasma generating device according to an embodiment of the present application;

[0024] Figure 4 for Figure 2 The schematic diagram of the plasma generating device shown;

[0025] Figure 5 for Figure 3 The schematic diagram of the plasma generating device shown;

[0026] Figure 6 Flow chart of a circuit control method according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] In the related art, a module using low-temperature plasma technology can be added to electronic equipment such as air conditioners to achieve functions such as air purification. For example, the module using low-temperature plasma technology can be a plasma generator. However, the function of using plasma to purify the air has the problem of low perceptibility. For example, the light generated by the module using low-temperature plasma technology when working needs to be seen in a dark environment, that is, the user cannot perceive that the function of purifying the air has been turned on. For air conditioner users, it is impossible to perceive whether the module using low-temperature plasma technology is working, and thus it is impossible to determine whether the air conditioner has turned on the function of purifying the air.

[0028] In order to solve the above technical problems, a technical solution of the embodiment of the present application is proposed.

[0029] The following is a further detailed description of the embodiments of the present application in conjunction with the accompanying drawings and examples. It should be understood that the embodiments provided herein are only used to explain the embodiments of the present application and are not intended to limit the embodiments of the present application. In addition, the embodiments provided below are partial embodiments for implementing the present application, rather than providing all embodiments for implementing the present application. In the absence of conflict, the technical solutions recorded in the embodiments of the present application can be implemented in any combination.

[0030] It should be noted that, in the embodiments of the present application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a method or device including a series of elements includes not only the elements explicitly recorded, but also includes other elements not explicitly listed, or also includes elements inherent to the implementation of the method or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other related elements (such as steps in a method or units in a device, for example, a unit may be a part of a circuit, a part of a processor, a part of a program or software, etc.) in the method or device including the element.

[0031] For example, the circuit control method provided in the embodiment of the present application includes a series of steps, but the circuit control method provided in the embodiment of the present application is not limited to the recorded steps. Similarly, the plasma generating device provided in the embodiment of the present application includes a series of modules, but the device provided in the embodiment of the present application is not limited to including the modules explicitly recorded, and may also include modules required to obtain relevant information or perform processing based on information.

[0032] Figure 1 Schematic diagram of the structure of a plasma generating device according to an embodiment of the present application. Figure 1 As shown, the device may include a signal generator 10, a signal amplifying circuit 20, a plasma generator 30, a switching circuit 40 and a light emitting device 50. Here, the light emitting device 50 may include N lamps, where N is an integer greater than or equal to 1.

[0033] In the embodiment of the present application, the signal generator 10 is used to generate a square wave pulse signal, the input end of the signal amplifying circuit 20 is connected to the output end of the signal generator 10, and the output end of the signal amplifying circuit 20 is connected to the plasma generator 30; the signal amplifying circuit 20 is used to amplify the square wave pulse signal and output the amplified square wave pulse signal to the plasma generator 30.

[0034] The switch circuit 40 is used to control the on / off of at least one lamp in the light emitting device according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator 10. Figure 1 , the switch circuit 40 is connected to the signal generator 10 and the light emitting device 50 respectively.

[0035] In some embodiments, the light emitting device 50 and the plasma generator 30 may be spatially independently deployed devices; in some embodiments, the light emitting device 50 and the plasma generator 30 are centrally deployed together, for example, the light emitting device 50 is located on the outer surface of the plasma generator 30, so that it is convenient to perceive whether the plasma generator 30 is working by observing the state of the light emitting device 50 (whether it is emitting light).

[0036] In some embodiments, the signal generator 10 and the signal amplifying circuit 20 may be devices disposed outside the plasma generator 30 .

[0037] In some embodiments, the lamp in the light-emitting device may be a light-emitting diode (LED) lamp or other types of lamps.

[0038] It can be seen that in the embodiment of the present application, since the switching circuit can control the on and off of at least one lamp according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator, the on and off of at least one lamp is determined by the level state and / or signal amplitude of the square wave pulse signal; and the square wave pulse signal can be output to the plasma generator after being amplified by the signal amplification circuit, thereby driving the plasma generator to work, so that it is possible to more accurately judge whether the plasma generator is working according to the on and off state of the lamp, thereby enhancing the perceptibility of the plasma generator during operation.

[0039] In some embodiments of the present application, the signal generator 10 may include a time controller 101, an inverter 102, and a voltage controller 103; Figure 2 and Figure 3 The time controller 101 is used to generate a basic square wave pulse signal. The inverter 102 is connected between the output end of the time controller 101 and the input end of the voltage controller 103. The voltage controller 101 is used to generate a square wave pulse signal by adjusting the amplitude of the signal received by itself.

[0040] In the embodiment of the present application, the time controller 101 can generate a basic square wave pulse signal according to a preset frequency and a preset duty cycle, that is, the frequency of the basic square wave pulse signal is the preset frequency, and the duty cycle of the basic square wave pulse signal is the preset duty cycle.

[0041] Here, when the time controller 101 outputs a high-level signal in the basic square wave pulse signal, the voltage controller 103 will output a low-level signal in the square wave pulse signal through the processing of the inverter 102; when the time controller 101 outputs a low-level signal in the basic square wave pulse signal, the voltage controller 103 will output a high-level signal in the square wave pulse signal through the processing of the inverter 102.

[0042] It can be seen that the embodiment of the present application can generate a basic square wave pulse signal that meets the preset requirements through a time controller, and can generate a square wave pulse signal whose amplitude meets the preset requirements through a voltage controller, thereby facilitating the control of the working state of the plasma generator through a signal amplification circuit.

[0043] In some embodiments of the present application, the switching circuit 40 may include a switching tube, a control end of the switching tube is connected to the output end of the time controller, the switching tube is connected between the direct power supply and the ground, and one end of the switching tube connected to the DC power supply is connected to N lamps.

[0044] It can be seen that the embodiment of the present application can control the conduction and cutoff of the light-opening tube according to the level signal output by the time controller, thereby controlling the state of N lamps. The lighting time of the N lamps is consistent with the time when the plasma generator is in the working state, so that it can be more accurately judged whether the plasma generator is working according to the on-off state of the lamp, which enhances the perceptibility of the plasma generator when it is working and realizes the visual perception of the plasma generator when it is working.

[0045] In some embodiments, the switch tube includes but is not limited to IGBT, MOSFET, silicon carbide switch tube or gallium nitride switch tube. In this way, the embodiment of the present application can flexibly select the type of switch tube according to actual conditions, which is conducive to application in various scenarios.

[0046] When the switch is MOSFET, refer to Figure 2 The gate of MOSFET401 is connected to the output end of the time controller 101, the source and drain of MOSFET401 are connected between the direct power supply DC and the ground, and one end of the source and drain of MOSFET401 connected to the direct power supply DC is connected to N lamps.

[0047] In some embodiments, a preset resistor R0 is connected between the direct power source DC and the MOSFET 401. In some embodiments, the N lamps include a first lamp D1 to an Nth lamp D1 connected in series. N ; For example, the first lamp D1 to the Nth lamp D N All are LED lights.

[0048] In some embodiments, the signal amplification circuit 20 may include a first-stage amplification circuit 201, a second-stage amplification circuit 202 and a voltage sampling circuit 203. Exemplarily, the first-stage amplification circuit 201 may be an operational amplifier, the second-stage amplification circuit 202 may be a DC-DC converter, and the second-stage amplification circuit 202 is used to boost the input signal.

[0049] Reference Figure 2 and Figure 3The two input ends of the first-stage amplifier circuit 201 are respectively connected to the output end of the voltage controller 103 and the output end of the voltage sampling circuit 203, and the output end of the first-stage amplifier circuit 201 is connected to the input end of the second-stage amplifier circuit 202; the input end of the voltage sampling circuit 203 is connected to the voltage sampling end of the second-stage amplifier circuit 202, and the voltage sampling circuit 203 is used to sample the output voltage of the second-stage amplifier circuit 202 and feed the sampled voltage back to the first-stage amplifier circuit 201.

[0050] Figure 4 for Figure 2 The schematic diagram of the plasma generating device shown in FIG. Figure 4 After the time controller is powered on, it outputs a basic square wave pulse signal. Then, it is determined whether the signal output by the time controller 101 is a high level signal. If so, the gate of the MOSFET 401 receives the high level signal, so that the MOSFET 401 is turned on; the current of the direct power supply DC passes through the preset resistor R0 and the MOSFET 401 and is transmitted to the ground terminal; the first lamp D1 to the Nth lamp D connected in series are N When the signal output by the time controller 101 is a high level signal, after being processed by the inverter 102, the voltage controller 103, the first stage amplifier circuit 201 and the second stage amplifier circuit 202, the second stage amplifier circuit 202 will output a low level signal to the plasma generator 30, so that the plasma generator 30 is in a stopped working state.

[0051] When the signal output by the time controller 101 is not a high level signal, that is, when the time controller 101 outputs a low level signal, the gate of the MOSFET 401 receives the low level signal, so that the MOSFET 401 is in the cut-off state; the current of the direct power supply DC flows through the first resistor R1 and the first lamp D1 to the Nth lamp D1 connected in series. N , thus, the first to Nth lamps connected in series are in a lighting state. When the signal output by the time controller 101 is a low level signal, after being processed by the inverter 102, the voltage controller 103, the first stage amplifier circuit 201 and the second stage amplifier circuit 202, the second stage amplifier circuit 202 outputs a high level signal to the plasma generator 30, so that the plasma generator 30 is in a working state.

[0052] In the embodiment of the present application, the duty cycle of the pulse signal output by the time controller 101 is negatively correlated with the duty cycle of the pulse signal output by the second-stage amplifier circuit 202. When the time controller 101 outputs a high-level signal, the first lamp D1 to the Nth lamp D1 connected in series are NWhen the time controller 101 outputs a low level signal, the first lamp D1 to the Nth lamp D1 connected in series are N It will be in the lighting state; thus, the flashing frequency of the light-emitting device is consistent with the frequency of the pulse signal output by the second-stage amplifier circuit 202, the ratio of the lighting time of the light-emitting device in one working cycle to one working cycle is consistent with the duty cycle of the pulse signal output by the second-stage amplifier circuit 202, and the time between two adjacent lighting start time points in one working cycle of the light-emitting device.

[0053] In some embodiments, in order to maintain the consistency of the brightness of each lamp, the driving mode of the lamp adopts a constant current mode, and the intensity of the lamp current determines the brightness of the lamp, that is, the brightness of the lamp is uniformly controlled by the preset resistor R0, and the lamp current I=(V DC -V d *N) / r0, where V DC Indicates the voltage value of direct power supply DC, V d represents the conduction voltage drop of each lamp, and r0 represents the resistance value of the preset resistor R0.

[0054] In some embodiments, upon receiving a shutdown instruction, the time controller 101 may stop sending the pulse signal, thereby controlling the plasma generator 30 to switch to a shutdown state.

[0055] It can be seen that when the time controller outputs a high-level signal, the MOSFET is in the on state, the N lamps are in the off state, and at the same time, the second-stage amplifier circuit will output a low-level signal to the plasma generator, so that the plasma generator 30 is in a stopped working state. When the time controller outputs a low-level signal, the MOSFET is in the off state, the N lamps are in the on state, and at the same time, the second-stage amplifier circuit will output a high-level signal to the plasma generator, so that the plasma generator 30 is in the working state; that is, the lighting time of the N lamps is consistent with the time when the plasma generator 30 is in the working state, so that it can be more accurately judged whether the plasma generator is working according to the on-off state of the lamp, which enhances the perceptibility of the plasma generator when it is working, and realizes the visual perception of the plasma generator when it is working; the user can feel the sterilization frequency and duty cycle of the square wave pulse.

[0056] In some embodiments of the present application, N lamps are connected in parallel, and the switching circuit 40 may include a controller, wherein an input end of the controller is connected to an output end of a voltage controller 103, and an output signal of an i-th control signal output end among N control signal output ends of the controller is used to control the on and off of an i-th lamp among the N lamps, where i is an integer less than or equal to N.

[0057] Exemplarily, the controller can be a micro control unit (MCU) or other types of intelligent control devices; the i-th lamp among N lamps is located in the i-th branch, the 1st branch to the N-th branch are N branches connected in parallel to each other, and each of the N branches can be a branch composed of a lamp, a resistor and a switching device connected in series.

[0058] When N is equal to 10, refer to Figure 3 The input end of MCU 402 is connected to the output end of voltage controller 103, and the i-th branch is the i-th LED lamp L i , the i-th resistor R i and the i-th switching device Q i The branches formed by series connection, the i-th branch is connected between the direct current power supply DC and the ground; illustratively, the i-th switch device can be a MOSFET or other types of switch devices.

[0059] Reference Figure 3 MCU 402 has a total of 10 control signal output terminals. When the i-th switch device is a MOSFET, the i-th control signal output terminal of MCU 402 is connected to the gate of the i-th switch device.

[0060] It can be seen that since the input end of the controller is connected to the output end of the voltage controller, and the control signal output end of the controller is used to control the on and off of the lamp, the controller can control the on and off of the lamp according to the signal output by the voltage controller; and the signal output by the voltage controller can be used to drive the plasma generator to work after being processed by the signal amplification circuit, thereby facilitating a more accurate judgment of whether the plasma generator is working according to the on and off state of the lamp, thereby enhancing the perceptibility of the plasma generator when working and realizing visual perception of the plasma generator when working.

[0061] In some embodiments of the present application, the controller is used to determine the voltage value of the signal currently received by the plasma generator 30 based on the pre-acquired amplification factor of the signal amplification circuit 20 and the amplitude of the received square wave pulse signal; and control the on and off of at least one of the N lamps based on the voltage value of the plasma generator 30.

[0062] Here, the amplification factor of the signal amplifying circuit 20 is determined by the internal circuit structure of the signal amplifying circuit 20 . After the amplification factor of the signal amplifying circuit 20 is determined, the amplification factor can be input into the controller through the IO interface of the controller.

[0063] Exemplarily, the amplitude of the square wave pulse signal received by the controller is a, and the amplification factor of the signal amplification circuit 20 is m, then the voltage value b of the signal currently received by the plasma generator 30 is equal to a*m; the controller can control the on and off of at least one of the N lamps according to the voltage value b of the signal currently received by the plasma generator 30.

[0064] Here, when the signal received by the controller is a positive voltage signal, the amplitude of the square wave pulse signal received by the controller is the voltage value of the positive voltage signal; when the signal received by the controller is a negative voltage signal, the amplitude of the square wave pulse signal received by the controller is the absolute value of the voltage value of the negative voltage signal.

[0065] It can be seen that the embodiment of the present application can determine the voltage value of the plasma generator more accurately according to the amplification factor of the signal amplification circuit and the amplitude of the square wave pulse signal. Thus, the on and off of the lamps among N lamps can be controlled more accurately according to the voltage value of the plasma generator. That is, it is helpful to accurately judge the voltage value of the plasma generator according to the status of the lamps among the N lamps, and is helpful to realize the perception of the voltage strength of the plasma generator.

[0066] In some embodiments of the present application, a controller is used to determine the number of lamps that need to be turned on among N lamps based on the voltage value of the plasma generator 30, and control the on and off of at least one lamp among the N lamps based on the number of lamps that need to be turned on among the N lamps; wherein the voltage value of the plasma generator 30 is positively correlated with the number of lamps that need to be turned on among the N lamps.

[0067] It can be seen that since the voltage value of the plasma generator 30 is positively correlated with the number of lamps that need to be turned on among the N lamps, the voltage value of the plasma generator can be more accurately judged according to the number of lamps that are in the lighting state among the N lamps, which is conducive to the perception of the voltage strength of the plasma generator.

[0068] Figure 5 for Figure 3 The schematic diagram of the plasma generating device shown in FIG. Figure 5 After the time controller 101 is powered on, it outputs a basic square wave pulse signal, which is processed by the inverter 102 and the voltage controller 103 and then output to the MCU 402. The MCU 402 determines the voltage value b of the currently received signal, determines the number of lamps in the lighting state among the N lamps according to the voltage value b, and then controls the corresponding lamps to switch to the lighting state.

[0069] For example, refer to Figure 5When 0v≤b<1kv, it can be considered that the second stage amplifier circuit outputs a low level signal, and the plasma generator is in a stopped working state. At this time, MCU 402 can control the first LED lamp L1 to be in a lighting state, and control the second LED lamp L2 to the tenth LED lamp L 10 The control command generated by MCU 402 can be recorded as "1000000000", and MCU 402 sends a conduction control signal to the first switch device Q1, so that the first switch device Q1 is turned on, the first branch is in the conduction state, and the first LED lamp L1 is in the light state; MCU 402 sends a conduction control signal to the second switch device Q2 to the tenth switch device Q 10 Send a shutdown control signal, so that the second LED lamp L2 to the tenth LED lamp L 10 Lights off.

[0070] When j is 1 to 9 and jkv≤b<(j+1)kv, it can be considered that the plasma generator is in working state. At this time, MCU 402 can control the first LED lamp L1 to the j+1th LED lamp L j+1 In the light-on state, control the other LED lights to be in the light-off state. The other LED lights represent the 10 lamps except the 1st LED light L1 to the j+1th LED light L j+1 It can be seen that when j is equal to 9, all 10 LED lamps need to be controlled to be in the lighting state. MCU 402 sends the first switch device Q1 to the j+1th switch device Q j+1 Sending a conduction control signal, so that the first switching device Q1 to the j+1th switching device Q j+1 The 1st branch to the j+1th branch are in the conducting state, and the 1st LED light L1 to the j+1th LED and so on L j+1 In the light-on state; when j is 1 to 8, MCU 402 switches the j+2th switch Q j+2 To the 10th switch device Q 10 Send a shutdown control signal, so that the j+2nd LED lamp L j+2 To the 10th LED light L 10 For example, when j is 1 to 9 in sequence, the control commands generated by MCU 402 can be recorded as "1100000000", "1110000000", "1110000000", "1111000000", "11111100000", "11111110000", "1111111000", "11111111000", "1111111100", "11111111100", and "11111111111".

[0071] In some embodiments, the first LED lamp L1 to the tenth LED lamp L 10 The driving mode adopts constant current mode, and the first LED lamp L1 to the tenth LED lamp L 10 The intensity of the current in each lamp determines the brightness of the lamp, that is, the 1st LED lamp L1 to the 10th LED lamp L 10 The brightness is determined by the 1st resistor R1 to the 10th resistor R 10 Decide.

[0072] In some embodiments, upon receiving a shutdown instruction, the time controller 101 may stop sending the pulse signal, thereby controlling the plasma generator 30 to switch to a shutdown state.

[0073] It can be seen that as the voltage value of the plasma generator 30 increases, the number of lamps in the 10 lamps that are in the lighting state will gradually increase, and as the voltage value of the plasma generator 30 decreases, the number of lamps in the 10 lamps that are in the lighting state will decrease. That is, the number of lamps in the 10 lamps that are in the lighting state can reflect the voltage intensity of the square wave pulse output to the plasma generator 30. For example, when the voltage value of the square wave pulse output to the plasma generator 30 fluctuates between 2.5 kV and 8.5 kV, 3 to 9 lamps out of the 10 lamps will be in the lighting state. In summary, by observing the number of lamps in the lighting state, not only can the perception of whether the plasma generator is working or not be realized, but also the visual perception of the voltage intensity of the plasma generator can be realized.

[0074] The embodiment of the present application proposes a method of combining a square wave pulse driven plasma generator and synchronously adding an LED light that flashes in conjunction with the square wave pulse, so that users can better experience the high-energy pulse sterilization function.

[0075] The embodiment of the present application also proposes an air conditioner, comprising any one of the above-mentioned plasma generating devices. The technical solution of the embodiment of the present application can improve the perceptibility of air conditioner users when using high-energy pulse sterilization, and realize visual perception when the air conditioner starts high-energy pulse sterilization.

[0076] An embodiment of the present application also provides an electronic device, comprising any one of the above-mentioned plasma generating devices.

[0077] Based on the plasma generating device proposed in the above-mentioned embodiment, the embodiment of the present application further proposes a circuit control method.

[0078] Figure 6 is a flow chart of a circuit control method according to an embodiment of the present application, and the circuit control method is applied to the plasma generating device described above, referring to Figure 6 , the method may include:

[0079] Step 601: The switch circuit controls the on and off of at least one lamp among the N lamps according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator.

[0080] In some embodiments, the N lamps are N lamps connected in parallel; the switching circuit includes a controller, an input end of the controller is connected to an output end of the voltage controller, and the i-th control signal output end of the N control signal output ends of the controller is connected to the i-th lamp among the N lamps, where i is an integer less than or equal to N.

[0081] In some embodiments, the switching circuit controls the on and off of at least one of the N lamps according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator, including: determining the voltage value of the plasma generator according to the pre-acquired amplification factor of the signal amplification circuit and the amplitude of the received square wave pulse signal; and controlling the on and off of at least one of the N lamps according to the voltage value of the plasma generator.

[0082] In some embodiments, the switching circuit controls the on and off of at least one of the N lamps according to the voltage value of the plasma generator, including: determining the number of the N lamps that need to be turned on according to the voltage value of the plasma generator, and controlling the on and off of at least one of the N lamps according to the number of the N lamps that need to be turned on; wherein the voltage value of the plasma generator is positively correlated with the number of the N lamps that need to be turned on.

[0083] Those skilled in the art will appreciate that, in the above method of specific implementation, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0084] It should be noted that the description of the above method embodiment is similar to the description of the above device embodiment, and has similar beneficial effects as the device embodiment. For technical details not disclosed in the device embodiment of the present application, please refer to the description of the device embodiment of the present application for understanding.

[0085] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0086] The methods disclosed in the various method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0087] The features disclosed in the various product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0088] The features disclosed in the various method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0089] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0090] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A plasma generating device, characterized in that: The device comprises: a signal generator, a signal amplifying circuit, a plasma generator, a switch circuit and N lamps; N is an integer greater than or equal to 1; wherein, The signal generator is used to generate a square wave pulse signal, the input end of the signal amplifying circuit is connected to the output end of the signal generator, and the output end of the signal amplifying circuit is connected to the plasma generator; the switching circuit is used to control the on and off of at least one of the N lamps according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator.

2. The device according to claim 1, characterized in that The signal generator includes a time controller, an inverter and a voltage controller; wherein the time controller is used to generate a basic square wave pulse signal, the inverter is connected between the output end of the time controller and the input end of the voltage controller, and the voltage controller is used to generate the square wave pulse signal by adjusting the amplitude of the signal received by itself.

3. The device according to claim 2, characterized in that The switch circuit includes a switch tube, a control end of the switch tube is connected to the output end of the time controller, the switch tube is connected between the direct power supply and the ground, and one end of the switch tube connected to the DC power supply is connected to the N lamps.

4. The device according to claim 3, characterized in that The switch tube is an insulated gate bipolar transistor IGBT, a metal-oxide semiconductor MOS field effect transistor, a silicon carbide switch tube or a gallium nitride switch tube.

5. The device according to claim 2, characterized in that The N lamps are N lamps connected in parallel; the switching circuit includes a controller, the input end of the controller is connected to the output end of the voltage controller, the i-th control signal output end among the N control signal output ends of the controller is used to control the on and off of the i-th lamp among the N lamps, and i is an integer less than or equal to N.

6. The device according to claim 5, characterized in that The controller is used to determine the voltage value of the plasma generator according to the pre-acquired amplification factor of the signal amplification circuit and the amplitude of the received square wave pulse signal; At least one of the N lamps is controlled to be turned on or off according to the voltage value of the plasma generator.

7. The device according to claim 6, characterized in that The controller is used to determine the number of lamps that need to be turned on among the N lamps according to the voltage value of the plasma generator, and control the on and off of at least one lamp among the N lamps according to the number of lamps that need to be turned on among the N lamps; wherein the voltage value of the plasma generator is positively correlated with the number of lamps that need to be turned on among the N lamps.

8. An air conditioner, characterized in that: The air conditioner comprises the plasma generating device according to any one of claims 1 to 7.

9. An electronic device, characterized in that: The electronic equipment comprises the plasma generating device according to any one of claims 1 to 7.

10. A circuit control method, characterized in that: Applicable to a plasma generating device, the device comprises: a signal generator, a signal amplifying circuit, a plasma generator, a switch circuit and N lamps; N is an integer greater than or equal to 1; the signal generator is used to generate a square wave pulse signal, the input end of the signal amplifying circuit is connected to the output end of the signal generator, and the output end of the signal amplifying circuit is connected to the plasma generator; the method comprises: The switch circuit controls the on and off of at least one of the N lamps according to the level state and / or signal amplitude of the square wave pulse signal generated by the signal generator.

11. The method according to claim 10, characterized in that The N lamps are N lamps connected in parallel; the switching circuit includes a controller, the input end of the controller is connected to the output end of the voltage controller, the i-th control signal output end among the N control signal output ends of the controller is connected to the i-th lamp among the N lamps, and i is an integer less than or equal to N.

Images