CN115962536A - Ion generating circuit, air conditioner and control method - Google Patents
Ion generating circuit, air conditioner and control method Download PDFInfo
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- CN115962536A CN115962536A CN202211613551.6A CN202211613551A CN115962536A CN 115962536 A CN115962536 A CN 115962536A CN 202211613551 A CN202211613551 A CN 202211613551A CN 115962536 A CN115962536 A CN 115962536A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses an ion generating circuit, an air conditioner and a control method, wherein the ion generating circuit comprises a power supply module, a main control module, a positive high-voltage pulse conversion module, a negative high-voltage pulse conversion module, a positive high-voltage electrode and a negative high-voltage electrode; the main control module is respectively connected with the power supply module and the control module of the air conditioner; the positive high-voltage pulse conversion module is respectively connected with the power supply module and the main control module; the negative high-voltage pulse conversion module is respectively connected with the power supply module and the main control module; the positive high-voltage electrode is connected with the positive high-voltage pulse conversion module and is used for generating positive ions; the negative high-voltage electrode is connected with the negative high-voltage pulse conversion module and used for generating negative ions; the main control module sends a first PWM signal and a second PWM signal in a staggered mode to control the positive high-voltage electrode and the negative high-voltage electrode to release positive ions and negative ions alternately. The invention can improve the sterilization effect of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an ion generating circuit, an air conditioner and a control method.
Background
With the increasing importance of people on health, air conditioners with sterilization function are also increasingly popularized. The current commonly used sterilization technologies mainly comprise ultraviolet sterilization, plasma sterilization, clean ion group sterilization and positive and negative ion generator sterilization, wherein the positive and negative ion generator sterilization becomes the choice of most air conditioners due to the advantages of low cost and small size. In the currently common positive and negative ion sterilization technology, because the positive discharge electrode and the negative discharge electrode are too close to each other, positive ions generated by positive high-voltage ionized air released by the positive discharge electrode and negative ions generated by negative high-voltage ionized air released by the negative discharge electrode are neutralized at the moment of release, only a small part of positive ions and negative ions can be diffused into the air, so that the concentration of the positive ions and the negative ions in the whole space where the air conditioner is located is lower, and the sterilization effect is poor.
Disclosure of Invention
The invention provides an ion generating circuit, an air conditioner and a control method, and aims to solve the problem that the existing air conditioner with a sterilization function is poor in sterilization effect.
In a first aspect, the present invention provides an ion generating circuit, which includes a power supply module, a main control module, a positive high-voltage pulse conversion module, a negative high-voltage pulse conversion module, a positive high-voltage electrode, and a negative high-voltage electrode; the main control module is respectively connected with the power supply module and the control module of the air conditioner and used for receiving the control signal of the control module and sending a first PWM signal and a second PWM signal according to the control signal; the positive high-voltage pulse conversion module is respectively connected with the power supply module and the main control module and is used for receiving the first PWM signal and converting the first PWM signal into a positive high-voltage pulse signal; the negative high-voltage pulse conversion module is respectively connected with the power supply module and the main control module and is used for receiving the second PWM signal and converting the second PWM signal into a negative high-voltage pulse signal; the positive high-voltage electrode is connected with the positive high-voltage pulse conversion module and used for receiving the positive high-voltage pulse signal and generating positive ions; the negative high-voltage electrode is connected with the negative high-voltage pulse conversion module and used for receiving the negative high-voltage pulse signal and generating negative ions; the main control module sends the first PWM signal and the second PWM signal in a staggered mode to control the positive high-voltage electrode and the negative high-voltage electrode to release the positive ions and the negative ions alternately.
Further, the positive high-voltage pulse conversion module comprises a first boost circuit, and the negative high-voltage pulse conversion module comprises a second boost circuit; one end of the first booster circuit and one end of the second booster circuit are connected with the main control module, the other end of the first booster circuit is connected with the positive high-voltage electrode, and the other end of the second booster circuit is connected with the negative high-voltage electrode.
Further, the positive high-voltage pulse conversion module further comprises a first amplifying circuit, and the negative high-voltage pulse conversion module further comprises a second amplifying circuit; the first booster circuit is connected with the main control module through the first amplifying circuit, and the second booster circuit is connected with the main control module through the second amplifying circuit.
Further, the positive high-voltage pulse transmitting circuit further comprises a first protection circuit, and the negative high-voltage pulse transmitting circuit further comprises a second protection circuit; the positive high-voltage electrode is connected with the first booster circuit through the first protection circuit, and the negative high-voltage electrode is connected with the second booster circuit through the second protection circuit.
Further, the first boost circuit and the second boost circuit both comprise a transformer and a first switch tube, the first boost circuit further comprises a first diode and a second diode, and the second boost circuit further comprises a third diode and a fourth diode; one end of the primary side of the transformer is connected with the power supply module, the other end of the primary side of the transformer is connected with the drain electrode of the first switching tube, the grid electrode of the first switching tube is connected with the main control module, and the source electrode of the first switching tube is grounded; one end of a secondary side of a transformer of the first booster circuit is connected with the anode of the first diode, the cathode of the first diode is connected with the anode of the second diode, the cathode of the second diode is connected with the positive high-voltage electrode, and the other end of the secondary side of the transformer of the first booster circuit is grounded; one end of a secondary side of a transformer of the second booster circuit is connected with the negative electrode of the third diode, the positive electrode of the third diode is connected with the negative electrode of the fourth diode, the positive electrode of the fourth diode is connected with the negative high-voltage electrode, and the other end of the secondary side of the transformer of the second booster circuit is grounded.
Further, the first amplifying circuit and the second amplifying circuit both comprise a second switch tube, a first resistor and a second resistor; a base electrode of the second switching tube is connected with the main control module, a collector electrode of the second switching tube is respectively connected with one end of the first resistor and one end of the second resistor, and the other end of the first resistor is connected with the power supply module; the other end of the second resistor of the first amplifying circuit is connected with the first boosting circuit, and the other end of the second resistor of the second amplifying circuit is connected with the second boosting circuit.
Further, the first amplifying circuit and the second amplifying circuit each further comprise a third resistor and a fourth resistor; one end of the third resistor is connected with the main control module, the other end of the third resistor is connected with the grid electrode of the second switch tube, one end of the fourth resistor is connected with the second resistor, and the other end of the fourth resistor is grounded.
Further, each of the first boost circuit and the second boost circuit further includes a first capacitor, a second capacitor, a third capacitor, a fifth resistor, and a sixth resistor; one end of the first capacitor is connected with the power supply module, the other end of the first capacitor is connected with the primary side of the transformer, one end of the second capacitor is connected with one end of the fifth resistor, the other end of the fifth resistor is connected with one end of the sixth resistor, the other end of the sixth resistor is grounded, and one end of the third capacitor is connected with the secondary side of the transformer; the other end of the second capacitor of the first booster circuit is connected with the cathode of the first diode, and the other end of the third capacitor of the first booster circuit is connected with the positive high-voltage electrode; the other end of a second capacitor of the second booster circuit is connected with the anode of the third diode, and the other end of a third capacitor of the second booster circuit is connected with the negative high-voltage electrode.
In a second aspect, the invention provides an air conditioner comprising an ion generating circuit as described in any one of the above.
In a third aspect, the present invention provides a control method, where the control method is applied to any one of the above main control modules, and the method includes:
if a cleaning instruction is received, confirming a functional mode according to the cleaning instruction;
if the functional mode is a sterilization mode, transmitting the first PWM signal and the second PWM signal in a staggered manner according to a preset period;
if the functional mode is a dust removal mode, sending the second PWM signal according to the preset period;
and if the dust removal mode is executed for a first preset time, simultaneously sending the first PWM signal and the second PWM signal according to the preset period, and returning to the step of sending the second PWM signal according to the preset period after a second preset time.
According to the ion generating circuit, the air conditioner and the control method, the main control module can send the first PWM signal and the second PWM signal according to the control signal of the control module of the air conditioner, the positive high-voltage pulse signal is obtained through the positive high-voltage pulse conversion module, the positive high-voltage electrode ionizes the positive high-voltage pulse signal to generate positive ions, the negative high-voltage pulse signal is obtained through the negative high-voltage pulse conversion module, the negative high-voltage electrode ionizes the negative high-voltage pulse signal to generate negative ions, and the main control module emits the first PWM signal and the second PWM signal in a staggered mode to enable the positive high-voltage electrode and the negative high-voltage electrode to release the positive ions and the negative ions alternately, so that more positive ions and negative ions can be contained in the air, and the sterilization effect is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a block diagram of an ion generating circuit according to an embodiment of the present invention;
FIG. 2 is a pulse adjustment diagram of a sterilization mode according to an embodiment of the present invention;
FIG. 3 is a pulse adjustment diagram of a dust removal mode according to an embodiment of the present invention;
FIG. 4 is a block diagram of an ion generating circuit according to another embodiment of the present invention;
FIG. 5 is a block diagram of an ion generating circuit according to yet another embodiment of the present invention;
fig. 6 is a circuit diagram of an ion generating circuit according to an embodiment of the present invention;
fig. 7 is a circuit diagram of a power supply module of an ion generating circuit according to an embodiment of the invention; and
fig. 8 is a flowchart illustrating a control method according to an embodiment of the invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the drawings in the present invention, and it should be understood that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1 to 7, fig. 1 is a block diagram of an ion generating circuit according to an embodiment of the present invention; FIG. 2 is a pulse adjustment diagram of a sterilization mode according to an embodiment of the present invention; FIG. 3 is a pulse adjustment diagram of a dust removal mode according to an embodiment of the present invention; FIG. 4 is a block diagram of an ion generating circuit according to another embodiment of the present invention; FIG. 5 is a block diagram of an ion generating circuit according to another embodiment of the present invention;
FIG. 6 is a circuit diagram of an ion generating circuit according to an embodiment of the present invention; fig. 7 is a circuit diagram of a power supply module 10 of an ion generating circuit according to an embodiment of the present invention.
As shown in fig. 1, the ion generating circuit provided by the present invention includes a power supply module 10, a main control module 20, a positive high voltage pulse conversion module 30, a negative high voltage pulse conversion module 40, a positive high voltage electrode 50, and a negative high voltage electrode 60; the main control module 20 is respectively connected with the power supply module 10 and the control module of the air conditioner, and is configured to receive a control signal of the control module and send a first PWM signal and a second PWM signal according to the control signal; the positive high-voltage pulse conversion module 30 is respectively connected to the power supply module 10 and the main control module 20, and is configured to receive the first PWM signal and convert the first PWM signal into a positive high-voltage pulse signal; the negative high voltage pulse conversion module 40 is respectively connected to the power supply module 10 and the main control module 20, and is configured to receive the second PWM signal and convert the second PWM signal into a negative high voltage pulse signal; the positive high-voltage electrode 50 is connected with the positive high-voltage pulse conversion module 30 and is used for receiving the positive high-voltage pulse signal and generating positive ions; the negative high voltage electrode 60 is connected with the negative high voltage pulse conversion module 40, and is used for receiving the negative high voltage pulse signal and generating negative ions; wherein, the main control module 20 sends the first PWM signal and the second PWM signal in a staggered manner to control the positive high voltage electrode 50 and the negative high voltage electrode 60 to alternately release the positive ions and the negative ions.
Specifically, the power supply module 10 is configured to supply power to the main control module 20, the positive high-voltage pulse conversion module 30, and the negative high-voltage pulse conversion module 40, as shown in fig. 7, fig. 7 is a circuit diagram of the power supply module 10 provided in the present invention, an input end of the power supply module 10 is connected to a 12V power supply end, the power supply end may be a control module of an air conditioner, the power supply module 10 converts a 12V voltage into a 5V voltage to supply power to the main control module 20, and supplies power to the positive high-voltage pulse conversion module 30 and the negative high-voltage pulse conversion module 40, the circuit diagram shown in fig. 7 is only an implementation manner of the power supply module 10, and a specific implementation manner of the power supply module 10 is not limited to the circuit shown in fig. 7.
The main control module 20 may include a control chip, as shown in fig. 6, the control chip U1 may include a plurality of pins, where the receiving pin RX and the transmitting pin TX are connected to the control module of the air conditioner, and are configured to receive a control signal of the control module, and simultaneously, may perform data exchange with the control module. The FA pin of the control chip is connected to the negative high-voltage pulse conversion module 40 for sending the second PWM signal, and the FB pin of the control chip is connected to the positive high-voltage pulse conversion module 30 for sending the first PWM signal. Meanwhile, a light emitting diode D5 may be connected to the OUT pin of the main control chip, and the light emitting diode D5 is used for reminding the current functional mode of the main control module 20, for example, the functional mode may include a sterilization mode and a dust removal mode, when the functional mode is in the sterilization mode, the light emitting diode D5 is in an off state, and when the functional mode is in the dust removal mode, the light emitting diode D5 is in a light emitting state. Other components of the main control module 20 shown in fig. 6 are used for protecting the control chip or ensuring smooth operation of the circuit, and are not described herein. The positive high-voltage pulse conversion module 30 and the negative high-voltage pulse conversion module 40 are respectively configured to receive a first PWM signal and a second PWM signal, the positive high-voltage pulse conversion module 30 is configured to convert the first PWM signal into a positive high-voltage pulse signal, and the negative high-voltage pulse conversion module 40 is configured to convert the second PWM signal into a negative high-voltage pulse signal, where the first PWM signal and the second PWM signal may be the same signal. The voltages of the positive high voltage pulse signal and the negative high voltage pulse signal are usually within 3000V to 6000V.
In use, if the sterilization mode is adopted, as shown in fig. 2, if the pulse widths of the first PWM signal and the second PWM signal are both T1, where T1 may be 0.1ms to 0.5ms, 0.5ms is taken as an example, the release period is T2, T2 may be 1ms to 20ms, and 20ms is taken as an example, the misalignment interval between the first PWM signal and the second PWM signal may be T3, and half of T3 that is T2 is 10ms, the main control module 20 may first send the first PWM signal, send the second PWM signal after 10ms, send the first PWM signal after 20ms, send the second PWM signal after 30ms, and so on. After the first PWM signal sent out first is converted into the positive high voltage pulse signal by the positive high voltage pulse conversion module 30, the positive high voltage electrode 50 receives and generates positive ions, and then the positive ions are sent to the air. When the negative high voltage pulse conversion module 40 emits a negative high voltage pulse signal, the negative high voltage electrode 60 generates negative ions, and diffuses the negative ions into the air, and the positive ions and the negative ions are neutralized to start sterilization, and then the above process is repeated, so that the indoor space where the air conditioner is located can be sterilized. When entering the dust removal mode, as shown in fig. 3, in the dust removal mode, the main control module 20 sends the second PWM signal to the negative high-voltage pulse conversion module 40, so as to generate a negative high-voltage pulse signal, and the negative high-voltage electrode 60 generates a large amount of negative ions, which can charge the particles in the air, adsorb the particles, and then fall to the ground under the action of gravity to complete the dust removal of the air. T1 shown in FIG. 3 is the pulse width of the second PWM signal, T1 is generally 0.1ms to 0.5ms, and the release period T2 is generally 1ms to 20ms. In addition, when the air conditioner is in the dust removal mode for a long time, the air outlet of the air conditioner and the air conditioner can form negative ion static electricity accumulation, and if people touch the air conditioner, static electricity is easy to trigger, so that after a period of time, the first PWM signal and the second PWM signal are sent at the same time, the static electricity elimination stage is started, the static electricity near the air conditioner can be neutralized, and then the dust removal mode is continued.
Referring to fig. 4, as a further embodiment, the positive high voltage pulse converting module 30 includes a first voltage boosting circuit 31, and the negative high voltage pulse converting module 40 includes a second voltage boosting circuit 41; one end of the first boost circuit 31 and one end of the second boost circuit 41 are both connected to the main control module 20, the other end of the first boost circuit 31 is connected to the positive high-voltage electrode 50, and the other end of the second boost circuit 41 is connected to the negative high-voltage electrode 60.
Referring to fig. 6, as a further embodiment, each of the first voltage boost circuit 31 and the second voltage boost circuit 41 includes a transformer T1 and a first switch Q1, the first voltage boost circuit 31 further includes a first diode D1 and a second diode D2, and the second voltage boost circuit 41 further includes a third diode D3 and a fourth diode D4; one end of the primary side of the transformer T1 is connected to the power supply module 10, the other end of the primary side of the transformer T1 is connected to the drain of the first switching tube Q1, the gate of the first switching tube Q1 is connected to the main control module 20, and the source of the first switching tube Q1 is grounded; one end of a secondary side of the transformer T1 of the first booster circuit 31 is connected to the anode of the first diode D1, the cathode of the first diode D1 is connected to the anode of the second diode D2, the cathode of the second diode D2 is connected to the positive high voltage electrode 50, and the other end of the secondary side of the transformer T1 of the first booster circuit 31 is grounded; one end of the secondary side of the transformer T1 of the second boost circuit 41 is connected to the negative electrode of the third diode D3, the positive electrode of the third diode D3 is connected to the negative electrode of the fourth diode D4, the positive electrode of the fourth diode D4 is connected to the negative high-voltage electrode 60, and the other end of the secondary side of the transformer T1 of the second boost circuit 41 is grounded.
As a further embodiment, each of the first voltage boost circuit 31 and the second voltage boost circuit 41 further includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a fifth resistor R5, and a sixth resistor R6; one end of the first capacitor C1 is connected to the power supply module 10, the other end of the first capacitor C1 is connected to the primary side of the transformer T1, one end of the second capacitor C2 is connected to one end of the fifth resistor R5, the other end of the fifth resistor R5 is connected to one end of the sixth resistor R6, the other end of the sixth resistor R6 is grounded, and one end of the third capacitor C3 is connected to the secondary side of the transformer T1; the other end of the second capacitor C2 of the first voltage boost circuit 31 is connected to the negative electrode of the first diode D1, and the other end of the third capacitor C3 of the first voltage boost circuit 31 is connected to the positive high voltage electrode 50; the other end of the second capacitor C2 of the second voltage boost circuit 41 is connected to the anode of the third diode D3, and the other end of the third capacitor C3 of the second voltage boost circuit 41 is connected to the negative high voltage electrode 60.
The first boost circuit 31 is used to convert the first PWM signal into a positive high-voltage pulse signal, and the second boost circuit 41 is used to convert the second PWM signal into a negative high-voltage pulse signal. The positive high voltage electrode 50 is used to generate positive ions and the negative high voltage electrode 60 is used to generate negative ions. As shown in fig. 6, the positive high voltage electrode 50 and the negative high voltage electrode 60 may be a single discharge electrode, the discharge electrode Z1 shown in fig. 6 is the positive high voltage electrode 50, and the discharge electrode Z2 is the negative high voltage electrode 60. The discharge electrode can be a carbon fiber brush or a stainless steel discharge needle, and the distance between the positive high-voltage electrode 50 and the negative high-voltage electrode 60 is generally between 30mm and 110 mm. As shown in fig. 6, the first PWM signal and the second PWM signal may be boosted by the first switching tube Q1 and the transformer T1, and then the positive high voltage pulse signal is obtained by the first diode D1 and the second diode D2, and the negative high voltage pulse signal is obtained by the third diode D3 and the fourth diode D4.
As a further embodiment, referring to fig. 4, the positive high voltage pulse conversion module 30 further includes a first amplifying circuit 32, and the negative high voltage pulse conversion module 40 further includes a second amplifying circuit 42; the first boost circuit 31 is connected to the main control module 20 through the first amplifying circuit 32, and the second boost circuit 41 is connected to the main control module 20 through the second amplifying circuit 42.
As a further embodiment, the first amplifying circuit 32 and the second amplifying circuit 42 each include a second switch Q2, a first resistor R1, and a second resistor R2; a base electrode of the second switch tube Q2 is connected with the main control module 20, a collector electrode of the second switch tube Q2 is respectively connected with one end of the first resistor R1 and one end of the second resistor R2, and the other end of the first resistor R1 is connected with the power supply module 10; the other end of the second resistor R2 of the first amplifier circuit 32 is connected to the first booster circuit 31, and the other end of the second resistor R2 of the second amplifier circuit 42 is connected to the second booster circuit 41.
As a further embodiment, each of the first amplifying circuit 32 and the second amplifying circuit 42 further includes a third resistor R3 and a fourth resistor R4; one end of the third resistor R3 is connected to the main control module 20, the other end of the third resistor R3 is connected to the gate of the second switch tube Q2, one end of the fourth resistor R4 is connected to the second resistor R2, and the other end of the fourth resistor R4 is grounded.
The first amplifier circuit 32 and the second amplifier circuit 42 are both used for amplifying the PWM signal, thereby improving the driving capability. As shown in fig. 6, the driving capability of the first PWM signal and the second PWM signal can be improved by the second switching tube Q2.
As a further embodiment, referring to fig. 5, the positive high-voltage pulse transmission circuit further includes a first protection circuit 33, and the negative high-voltage pulse transmission circuit further includes a second protection circuit 43; the positive high voltage electrode 50 is connected to the first booster circuit 31 through the first protection circuit 33, and the negative high voltage electrode 60 is connected to the second booster circuit 41 through the second protection circuit 43.
As shown in fig. 6, the first protection circuit 33 includes a seventh resistor R7, the second protection circuit 43 includes an eighth resistor R8, and the impedances of the seventh resistor R7 and the eighth resistor R8 are both greater than 1M Ω.
The invention also provides an air conditioner which comprises the ion generating circuit in any one of the embodiments.
Referring to fig. 8, fig. 8 is a flowchart illustrating a control method according to an embodiment of the invention. As shown in fig. 8, the method includes the following steps S100-S130.
And S100, if a cleaning instruction is received, confirming a functional mode according to the cleaning instruction.
In the embodiment of the invention, a user can control the working modes of the air conditioner in a remote control mode and the like, and the working modes of the air conditioner generally comprise a cooling mode, a heating mode and a cleaning mode. When a user switches the working mode of the air conditioner to a cleaning mode, the control module of the air conditioner sends a cleaning instruction to the main control module of the ion generating circuit, and the main control module confirms the functional mode when receiving the cleaning instruction. The ion generating circuit provided by the invention supports a dust removal mode and a sterilization mode, and a user can select the dust removal mode and the sterilization mode through remote control and other modes.
And S110, if the functional mode is the sterilization mode, transmitting the first PWM signal and the second PWM signal in a staggered mode according to a preset period.
In the embodiment of the present invention, when the function mode is the sterilization mode, the first PWM signal and the second PWM signal may be transmitted in a staggered manner according to a preset period. The transmission periods of the first PWM signal and the second PWM signal may be the same, for example, the first PWM signal and the second PWM signal are transmitted once at an interval of 20ms, but the first PWM signal and the second PWM signal need to be transmitted in a staggered manner, for example, the first PWM signal is transmitted at 0ms, and the second PWM signal is transmitted at 10 ms. After the first PWM signal sent out firstly is converted into a positive high-voltage pulse signal through the positive high-voltage pulse conversion module, the positive high-voltage electrode receives and generates positive ions, and then the positive ions are released into the air.
S120, if the functional mode is a dust removal mode, sending the second PWM signal according to the preset period;
and S130, if the dust removal mode is executed for a first preset time, simultaneously sending the first PWM signal and the second PWM signal according to the preset period, and returning to the step of sending the second PWM signal according to the preset period after a second preset time.
In the embodiment of the present invention, if the function mode is the dust removal mode, the second PWM signal is sent according to a preset period, for example, the second PWM signal is sent once every 20ms. The negative high-voltage pulse conversion module converts the second PWM signal into a negative high-voltage pulse signal, and the negative high-voltage electrode can produce a large amount of negative ions, and because only there is the negative ions in the air, the negative ions can make the particulate matter in the air charged, then adsorb the particulate matter, fall to the ground under the effect of gravity and accomplish the dust removal to the air afterwards. When the time in the dust removal mode reaches a first preset time, for example, if the time in the dust removal mode reaches 5 minutes, the first PWM signal and the second PWM signal may be sent at the same time, the static electricity elimination stage is entered, the static electricity near the air conditioner is neutralized by the positive high-voltage pulse signal, the duration of the static electricity elimination stage is generally 20s to 60s, that is, the second preset time, and after the second preset time, the dust removal mode continues.
According to the invention, the first PWM signal and the second PWM signal are sent in a staggered manner, so that the time for generating the positive high-voltage pulse signal and the negative high-voltage pulse is staggered, enough positive ions and negative ions can be ensured to exist in the air, and the sterilization effect is improved.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An ion generating circuit applied to an air conditioner is characterized by comprising:
a power supply module;
the main control module is respectively connected with the power supply module and the control module of the air conditioner and is used for receiving a control signal of the control module and sending a first PWM signal and a second PWM signal according to the control signal;
the positive high-voltage pulse conversion module is respectively connected with the power supply module and the main control module and is used for receiving the first PWM signal and converting the first PWM signal into a positive high-voltage pulse signal;
the negative high-voltage pulse conversion module is respectively connected with the power supply module and the main control module and is used for receiving the second PWM signal and converting the second PWM signal into a negative high-voltage pulse signal;
the positive high-voltage electrode is connected with the positive high-voltage pulse conversion module and used for receiving the positive high-voltage pulse signal and generating positive ions;
the negative high-voltage electrode is connected with the negative high-voltage pulse conversion module and used for receiving the negative high-voltage pulse signal and generating negative ions;
the main control module sends the first PWM signal and the second PWM signal in a staggered mode to control the positive high-voltage electrode and the negative high-voltage electrode to release the positive ions and the negative ions alternately.
2. The ion generating circuit of claim 1, wherein the positive high voltage pulse converting module comprises a first boost circuit and the negative high voltage pulse converting module comprises a second boost circuit;
one end of the first booster circuit and one end of the second booster circuit are connected with the main control module, the other end of the first booster circuit is connected with the positive high-voltage electrode, and the other end of the second booster circuit is connected with the negative high-voltage electrode.
3. The ion generating circuit of claim 2, wherein the positive high voltage pulse conversion module further comprises a first amplification circuit, and the negative high voltage pulse conversion module further comprises a second amplification circuit;
the first booster circuit is connected with the main control module through the first amplifying circuit, and the second booster circuit is connected with the main control module through the second amplifying circuit.
4. The ion generating circuit of claim 3, wherein the positive high voltage pulse transmitting circuit further comprises a first protection circuit, and the negative high voltage pulse transmitting circuit further comprises a second protection circuit;
the positive high-voltage electrode is connected with the first booster circuit through the first protection circuit, and the negative high-voltage electrode is connected with the second booster circuit through the second protection circuit.
5. The ion generating circuit of claim 2, wherein the first boost circuit and the second boost circuit each comprise a transformer and a first switching tube, the first boost circuit further comprises a first diode and a second diode, and the second boost circuit further comprises a third diode and a fourth diode;
one end of the primary side of the transformer is connected with the power supply module, the other end of the primary side of the transformer is connected with the drain electrode of the first switching tube, the grid electrode of the first switching tube is connected with the main control module, and the source electrode of the first switching tube is grounded;
one end of a secondary side of a transformer of the first booster circuit is connected with the anode of the first diode, the cathode of the first diode is connected with the anode of the second diode, the cathode of the second diode is connected with the positive high-voltage electrode, and the other end of the secondary side of the transformer of the first booster circuit is grounded;
one end of a secondary side of a transformer of the second booster circuit is connected with the negative electrode of the third diode, the positive electrode of the third diode is connected with the negative electrode of the fourth diode, the positive electrode of the fourth diode is connected with the negative high-voltage electrode, and the other end of the secondary side of the transformer of the second booster circuit is grounded.
6. The ion generating circuit according to claim 3, wherein the first amplifying circuit and the second amplifying circuit each include a second switching tube, a first resistor, and a second resistor;
the base electrode of the second switch tube is connected with the main control module, the collector electrode of the second switch tube is respectively connected with one end of the first resistor and one end of the second resistor, and the other end of the first resistor is connected with the power supply module;
the other end of the second resistor of the first amplifying circuit is connected with the first boosting circuit, and the other end of the second resistor of the second amplifying circuit is connected with the second boosting circuit.
7. The ion generating circuit of claim 6, wherein the first amplifying circuit and the second amplifying circuit each further comprise a third resistor and a fourth resistor;
one end of the third resistor is connected with the main control module, the other end of the third resistor is connected with the grid electrode of the second switch tube, one end of the fourth resistor is connected with the second resistor, and the other end of the fourth resistor is grounded.
8. The ion generating circuit of claim 5, wherein the first boost circuit and the second boost circuit each further comprise a first capacitor, a second capacitor, a third capacitor, a fifth resistor, and a sixth resistor;
one end of the first capacitor is connected with the power supply module, the other end of the first capacitor is connected with the primary side of the transformer, one end of the second capacitor is connected with one end of the fifth resistor, the other end of the fifth resistor is connected with one end of the sixth resistor, the other end of the sixth resistor is grounded, and one end of the third capacitor is connected with the secondary side of the transformer;
the other end of the second capacitor of the first booster circuit is connected with the cathode of the first diode, and the other end of the third capacitor of the first booster circuit is connected with the positive high-voltage electrode;
the other end of a second capacitor of the second booster circuit is connected with the anode of the third diode, and the other end of a third capacitor of the second booster circuit is connected with the negative high-voltage electrode.
9. An air conditioner characterized by comprising the ion generating circuit according to any one of claims 1 to 8.
10. A control method applied to the master control module according to any one of claims 1 to 8, the method comprising:
if a cleaning instruction is received, confirming a functional mode according to the cleaning instruction;
if the functional mode is a sterilization mode, transmitting the first PWM signal and the second PWM signal in a staggered manner according to a preset period;
if the function mode is a dust removal mode, sending the second PWM signal according to the preset period;
and if the dust removal mode is executed for a first preset time, simultaneously sending the first PWM signal and the second PWM signal according to the preset period, and returning to the step of sending the second PWM signal according to the preset period after a second preset time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211613551.6A CN115962536A (en) | 2022-12-15 | 2022-12-15 | Ion generating circuit, air conditioner and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211613551.6A CN115962536A (en) | 2022-12-15 | 2022-12-15 | Ion generating circuit, air conditioner and control method |
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| CN115962536A true CN115962536A (en) | 2023-04-14 |
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| CN202211613551.6A Pending CN115962536A (en) | 2022-12-15 | 2022-12-15 | Ion generating circuit, air conditioner and control method |
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