Breathing machine atomization control circuit, household breathing machine and multifunctional all-in-one machine

Abstract

The invention discloses a breathing machine atomization control circuit, a household breathing machine and a multifunctional all-in-one machine, an atomization driving circuit in the breathing machine atomization control circuit is used for receiving a PWM signal sent by a signal control unit, and the third end of a switch unit and the second end of the switch unit are controlled to be connected according to the frequency of the PWM signal; power supply current passes through and is transmitted to the current acquisition circuit, the current acquisition circuit converts the received current into target voltage, so that the concentration acquisition unit receives a target voltage signal, and the concentration acquisition unit works according to the target voltage signal. The concentration acquisition unit sends an acquired concentration detection result to the signal control unit, and the signal control unit controls the driving circuit to drive the aromatherapy atomization sheet according to the concentration detection result. And the working efficiency of the atomized sleep-aiding substance is intelligently controlled according to the concentration of the atomized sleep-aiding substance.

Description

Technical Field

[0001] The invention relates to the field of ventilator atomization, and in particular to a ventilator atomization control circuit, a household ventilator and a multifunctional all-in-one machine. Background Art

[0002] As people's quality of life improves, in order to improve the air quality at home, many people will buy home ventilators to improve the air quality at home. However, home ventilators only have breathing control functions and do not have sleep-aiding functions. Therefore, a sleep-aiding atomizing ventilator is urgently needed to solve the problem of breathing atomizing to help sleep. Summary of the invention

[0003] The embodiments of the present invention provide a ventilator atomization control circuit, a household ventilator and a multifunctional all-in-one machine to solve the problem of ventilator atomization to aid sleep.

[0004] The first aspect of the present application provides a nebulization control circuit for a ventilator, comprising: a signal control unit, a nebulization drive circuit, a current acquisition circuit and a concentration acquisition unit; The input end of the atomization drive circuit is connected to the output end of the signal control unit, the output end of the atomization drive circuit is used to connect to the drive end of the aromatherapy atomization sheet, the input end of the current collection circuit is connected to the drive circuit of the atomization drive circuit, the output end of the current collection circuit is connected to the input end of the concentration collection unit, and the output end of the concentration collection unit is connected to the input end of the signal control unit; The concentration acquisition unit detects the atomization concentration of the aromatherapy atomization sheet based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit; The signal control unit adjusts the output PWM signal based on the detection result, so that the atomization driving circuit drives the aromatherapy atomization sheet to work.

[0005] Optionally, the atomization driving circuit includes: a first resistor, a diode, a series inductor, a switch unit, a second resistor and a third resistor; The first resistor is connected in parallel with the diode, and one parallel end of the first resistor and the diode serves as the input end of the atomization drive circuit. The other parallel end of the first resistor and the diode is connected to the control end of the switch unit and one end of the second resistor. The first end of the series inductor is connected to the power supply, and the inductor common end of the series inductor is connected to the first end of the switch power supply. The inductor common end and the second end of the series inductor are also respectively connected to the two ends of the aromatherapy atomization sheet. The second end of the switch unit is connected to one end of the third resistor and the input end of the current acquisition circuit, and the other end of the third resistor is connected to the ground.

[0006] Optionally, the current acquisition circuit includes: a fourth resistor, a first capacitor, a current amplifier, a fifth resistor, a sixth resistor, a seventh resistor and a second capacitor; One end of the fourth resistor is connected to the second end of the switch unit, and the other end is connected to one end of the first capacitor and the first input port of the current amplifier. The other end of the first capacitor is connected to the ground. The second input port of the current amplifier is connected to one end of the fifth resistor and one end of the sixth resistor. One end of the fifth resistor is connected to the ground. The third port of the current amplifier is connected to the other end of the sixth resistor and one end of the seventh resistor. The other end of the seventh resistor and one end of the second capacitor are connected together as the output end of the current acquisition circuit. The output end of the second capacitor is connected to the ground.

[0007] The second aspect of the present application provides a household ventilator, comprising an aromatherapy atomizer sheet and an atomization control circuit, wherein the atomization control circuit comprises: a signal control unit, an atomization drive circuit, a current collection circuit and a concentration collection unit; The input end of the atomization drive circuit is connected to the output end of the signal control unit, the output end of the atomization drive circuit is connected to the drive end of the aromatherapy atomization sheet, the input end of the current collection circuit is connected to the drive circuit of the atomization drive circuit, the output end of the current collection circuit is connected to the input end of the concentration collection unit, and the output end of the concentration collection unit is connected to the input end of the signal control unit; The concentration acquisition unit detects the atomization concentration of the aromatherapy atomization sheet based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit; The signal control unit adjusts the output PWM signal based on the detection result, so that the atomization driving circuit drives the aromatherapy atomization sheet to work.

[0008] Optionally, the atomization driving circuit includes: a first resistor, a diode, a series inductor, a switch unit, a second resistor and a third resistor; The first resistor is connected in parallel with the diode, and one parallel end of the first resistor and the diode serves as the input end of the atomization drive circuit. The other parallel end of the first resistor and the diode is connected to the control end of the switch unit and one end of the second resistor. The first end of the series inductor is connected to the power supply, and the inductor common end of the series inductor is connected to the first end of the switch power supply. The inductor common end and the second end of the series inductor are also respectively connected to the two ends of the aromatherapy atomization sheet. The second end of the switch unit is connected to one end of the third resistor and the input end of the current acquisition circuit, and the other end of the third resistor is connected to the ground.

[0009] Optionally, the current acquisition circuit includes: a fourth resistor, a first capacitor, a current amplifier, a fifth resistor, a sixth resistor, a seventh resistor and a second capacitor; One end of the fourth resistor is connected to the second end of the switch unit, and the other end is connected to one end of the first capacitor and the first input port of the current amplifier. The other end of the first capacitor is connected to the ground. The second input port of the current amplifier is connected to one end of the fifth resistor and one end of the sixth resistor. One end of the fifth resistor is connected to the ground. The third port of the current amplifier is connected to the other end of the sixth resistor and one end of the seventh resistor. The other end of the seventh resistor and one end of the second capacitor are connected together as the output end of the current acquisition circuit. The output end of the second capacitor is connected to the ground.

[0010] Optionally, the concentration acquisition unit detects the concentration of the mixed gas of the ventilator based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit, wherein the mixed gas includes the atomized gas of the aromatherapy atomization sheet and the exhaled gas of the ventilator.

[0011] Optionally, the home ventilator further comprises a water tank and a pipeline; The water tank controls the efficiency of heating the atomized gas by the water tank based on the detection result received by the signal control unit, so that the aromatherapy atomization sheet atomizes the atomized gas stored in the water tank in the pipeline.

[0012] Optionally, the pipeline controls the water tank to heat the atomized gas that has been atomized in the pipeline based on the detection result received by the signal control unit, so that the concentration collection unit can detect the concentration of the atomized gas in the pipeline.

[0013] The third aspect of the present application provides a multifunctional all-in-one machine, including an aromatherapy atomizer sheet and an atomization control circuit, wherein the atomization control circuit includes: a signal control unit, an atomization drive circuit, a current collection circuit and a concentration collection unit; The input end of the atomization drive circuit is connected to the output end of the signal control unit, the output end of the atomization drive circuit is connected to the drive end of the aromatherapy atomization sheet, the input end of the current collection circuit is connected to the drive circuit of the atomization drive circuit, the output end of the current collection circuit is connected to the input end of the concentration collection unit, and the output end of the concentration collection unit is connected to the input end of the signal control unit; The concentration acquisition unit detects the atomization concentration of the aromatherapy atomization sheet based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit; The signal control unit adjusts the output PWM signal based on the detection result, so that the atomization driving circuit drives the aromatherapy atomization sheet to work.

[0014] The above-mentioned ventilator atomization control circuit, household ventilator and multifunctional all-in-one machine, the input end of the drive circuit is connected to the output end of the signal control unit, the output end of the drive circuit is connected to the input end of the current acquisition circuit, the output end of the current acquisition circuit is connected to the input end of the concentration acquisition unit, and the output end of the concentration acquisition unit is connected to the input end of the signal control unit; the drive circuit is used to drive the aromatherapy atomization sheet to work according to the PWM signal input by the signal control unit; the current acquisition circuit is used to receive the power supply current of the drive circuit and convert the received power supply current into a target voltage signal; the concentration acquisition unit is used to receive the target voltage signal converted by the current acquisition circuit, detect the atomization concentration of the aromatherapy atomization sheet, and feed back the detection result to the signal control unit, so that the signal control unit adjusts the drive circuit to drive the aromatherapy atomization sheet according to the detection result. It can be seen that the present invention can achieve sleep aid for the user by atomizing the sleep-aiding substance while ensuring the normal operation of the ventilator, and can intelligently control the working efficiency of the atomized sleep-aiding substance according to the concentration of the atomized sleep-aiding substance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0016] Figure 1 This is a block diagram of a nebulization control circuit of a ventilator in one embodiment of the present invention; Figure 2 It is a structural schematic diagram of a nebulizer circuit of a respirator in one embodiment of the present invention; Figure 3 It is a structural schematic diagram of a household ventilator in one embodiment of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0019] It should also be understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0020] As used in the present specification and the appended claims, the term "if" may be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" may be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]", depending on the context.

[0021] In addition, in the description of the present specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0022] References to "one embodiment" or "some embodiments" etc. described in the present specification mean that one or more embodiments of the present invention include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0023] It should be understood that the order of execution of the steps in the following embodiments does not imply a precedence of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0024] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for illustration.

[0025] Figure 1 The atomization control circuit block diagram of the ventilator provided in the embodiment of the present application is as follows: Figure 1As shown, the nebulizer control circuit includes: a signal control unit, a nebulizer drive circuit, a current acquisition circuit and a concentration acquisition unit.

[0026] The input end of the atomization drive circuit is connected to the output end of the signal control unit, the output end of the atomization drive circuit is used to connect to the drive end of the aromatherapy atomization sheet, the input end of the current collection circuit is connected to the drive loop of the atomization drive circuit, the output end of the current collection circuit is connected to the input end of the concentration collection unit, and the output end of the concentration collection unit is connected to the input end of the signal control unit.

[0027] The concentration acquisition unit detects the atomization concentration of the aromatherapy atomization sheet based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit.

[0028] The signal control unit adjusts the output PWM signal based on the detection result, so that the atomization driving circuit drives the aromatherapy atomization sheet to work.

[0029] In this embodiment, the ventilator atomization control circuit provided by the embodiment of the present invention is composed of a signal control unit, an atomization drive circuit, a current acquisition circuit, a concentration acquisition unit and an aromatherapy atomization sheet. The atomization drive circuit is used to drive the aromatherapy atomization sheet to work according to the PWM signal input by the signal control unit. The current acquisition circuit is used to receive the power supply current of the drive circuit and convert the collected power supply current into a target voltage signal. The concentration acquisition unit is used to receive the target voltage signal converted by the discharge voltage acquisition circuit, detect the atomization concentration of the aromatherapy atomization sheet, and feed back the detection result to the signal control unit, so that the signal control unit adjusts the drive circuit to drive the aromatherapy atomization sheet according to the detection result. The present invention achieves sleep aid for the user by atomizing the sleep-aiding substance, and can intelligently control the working efficiency of the atomized sleep-aiding substance according to the concentration of the atomized sleep-aiding substance.

[0030] Alternatively, if Figure 2 As shown, the atomization driving circuit includes: a first resistor, a diode, a series inductor, a switch unit, a second resistor and a third resistor.

[0031] The first resistor is connected in parallel with the diode, and one parallel end of the first resistor and the diode serves as the input end of the atomization drive circuit. The other parallel end of the first resistor and the diode is connected to the control end of the switch unit and one end of the second resistor. The first end of the series inductor is connected to the power supply, and the inductor common end of the series inductor is connected to the first end of the switch power supply. The inductor common end and the second end of the series inductor are also respectively connected to the two ends of the aromatherapy atomization sheet. The second end of the switch unit is connected to one end of the third resistor and the input end of the current acquisition circuit, and the other end of the third resistor is connected to the ground.

[0032] It should be noted that the working principle of the atomization driving circuit provided in the present invention is: the power supply supplies power to the inductor, the inductor starts to work until a stable inductor voltage is generated and transmitted to the aromatherapy atomization sheet, and the aromatherapy atomization sheet starts to work. At the same time, the signal control unit sends a PWM signal, and the PWM signal drives the second and third terminals of the switch unit to be connected, so that the power current flowing through the inductor can be smoothly transmitted to the discharge voltage collection.

[0033] In this embodiment, the driving circuit provided by the embodiment of the present invention is composed of a first resistor, a diode, a series inductor, a switch unit, a second resistor and a third resistor. The atomization driving circuit is used to collect the current flowing through the aromatherapy atomization sheet and send the current to the current collection circuit.

[0034] Alternatively, if Figure 2 As shown, the current acquisition circuit includes: a fourth resistor, a first capacitor, a current amplifier, a fifth resistor, a sixth resistor, a seventh resistor and a second capacitor.

[0035] like Figure 2 As shown, one end of the fourth resistor is connected to the second end of the switch unit, and the other end is connected to one end of the first capacitor and the first input port of the current amplifier, the other end of the first capacitor is connected to the ground, the second input port of the current amplifier is connected to one end of the fifth resistor and one end of the sixth resistor, one end of the fifth resistor is connected to the ground, the third port of the current amplifier is connected to the other end of the sixth resistor and one end of the seventh resistor, the other end of the seventh resistor and one end of the second capacitor are connected together as the output end of the current acquisition circuit, and the output end of the second capacitor is connected to the ground.

[0036] It should be noted that after receiving the current transmitted by the driving circuit, the transmitted power supply current is processed by a current amplifier, the current is converted into a target voltage signal, and the target voltage signal is transmitted to the concentration acquisition unit, wherein the current amplifier includes: a current amplifier and a seventh resistor, the first end of the current amplifier is connected to the first capacitor input end, the second end of the amplifier is connected to the fifth resistor output end and the seventh resistor, the third end of the amplifier is connected to the sixth resistor, the amplifier input end is connected to the power supply, the amplifier output end is connected to the first, and the other end of the seventh resistor is connected to the sixth resistor input end. The current amplifier is used to boost the voltage of the power supply to the target voltage when the switch unit is turned on, so that the concentration acquisition unit works.

[0037] In this embodiment, the current acquisition circuit provided by the present invention is composed of a fourth resistor, a first capacitor, a current amplifier, a fifth resistor, a sixth resistor, a seventh resistor and a second capacitor. The current acquisition circuit described in this embodiment is used to receive the power supply current transmitted by the driving circuit when the driving circuit switch unit is turned on, and convert the power supply current to a target voltage to enable the concentration sensor to start working.

[0038] Optionally, the current amplifier is used to calculate the ratio of the sixth resistor to the seventh resistor, read the value of the fourth resistor, and determine the output target voltage.

[0039] Specifically, it is necessary to first collect the voltage values ​​on the fourth resistor, the sixth resistor, and the seventh resistor, and then calculate the ratio of the sixth resistor to the seventh resistor based on the collected voltage values ​​on each resistor, use the calculated ratio as the voltage amplification factor, and then use the current value multiplied by the voltage on the fourth resistor and the calculated voltage amplification factor to obtain the target voltage output by the current amplifier.

[0040] In this embodiment, the target voltage value output by the current acquisition circuit is calculated based on the voltage values ​​on the fourth resistor, the sixth resistor, and the seventh resistor and the current flowing through the current acquisition circuit. This embodiment converts the current into a voltage signal, thereby making the measurement and control of the current easier and more accurate.

[0041] The above-mentioned ventilator atomization control circuit, the drive circuit input end is connected to the signal control unit output end, the drive circuit output end is connected to the current acquisition circuit input end, the current acquisition circuit output end is connected to the concentration acquisition unit input end, and the concentration acquisition unit output end is connected to the signal control unit input end; the drive circuit is used to drive the aromatherapy atomization sheet to work according to the PWM signal input by the signal control unit; the current acquisition circuit is used to receive the power supply current of the drive circuit and convert the received power supply current into a target voltage signal; the concentration acquisition unit is used to receive the target voltage signal converted by the current acquisition circuit, detect the atomization concentration of the aromatherapy atomization sheet, and feed back the detection result to the signal control unit, so that the signal control unit adjusts the drive circuit to drive the aromatherapy atomization sheet according to the detection result. It can be seen that the present invention can achieve sleep aid for the user by atomizing the sleep-aiding substance while ensuring the normal operation of the ventilator, and can intelligently control the working efficiency of the atomized sleep-aiding substance according to the concentration of the atomized sleep-aiding substance.

[0042] In one embodiment, the present application provides a home ventilator, such as Figure 3 As shown, the home ventilator includes: a signal control unit, an atomization drive circuit, a current collection circuit and a concentration collection unit.

[0043] The input end of the atomization drive circuit is connected to the output end of the signal control unit, the output end of the atomization drive circuit is connected to the drive end of the aromatherapy atomization sheet, the input end of the current collection circuit is connected to the drive circuit of the atomization drive circuit, the output end of the current collection circuit is connected to the input end of the concentration collection unit, and the output end of the concentration collection unit is connected to the input end of the signal control unit; The concentration acquisition unit detects the atomization concentration of the aromatherapy atomization sheet based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit.

[0044] The signal control unit adjusts the output PWM signal based on the detection result, so that the atomization driving circuit drives the aromatherapy atomization sheet to work.

[0045] In this embodiment, the household respirator provided by the embodiment of the present invention is composed of a signal control unit, an atomization drive circuit, a current acquisition circuit, a concentration acquisition unit and an aromatherapy atomization sheet. The atomization drive circuit is used to drive the aromatherapy atomization sheet to work according to the PWM signal input by the signal control unit. The current acquisition circuit is used to receive the power supply current of the drive circuit and convert the collected power supply current into a target voltage signal. The concentration acquisition unit is used to receive the target voltage signal converted by the discharge voltage acquisition circuit, detect the atomization concentration of the aromatherapy atomization sheet, and feed back the detection result to the signal control unit, so that the signal control unit adjusts the drive circuit to drive the aromatherapy atomization sheet according to the detection result. The present invention achieves sleep aid for the user by atomizing the sleep-aiding substance, and can intelligently control the working efficiency of the atomized sleep-aiding substance according to the concentration of the atomized sleep-aiding substance.

[0046] Optionally, the atomization driving circuit includes: a first resistor, a diode, a series inductor, a switch unit, a second resistor and a third resistor.

[0047] The first resistor is connected in parallel with the diode, and one parallel end of the first resistor and the diode serves as the input end of the atomization drive circuit. The other parallel end of the first resistor and the diode is connected to the control end of the switch unit and one end of the second resistor. The first end of the series inductor is connected to the power supply, and the inductor common end of the series inductor is connected to the first end of the switch power supply. The inductor common end and the second end of the series inductor are also respectively connected to the two ends of the aromatherapy atomization sheet. The second end of the switch unit is connected to one end of the third resistor and the input end of the current acquisition circuit, and the other end of the third resistor is connected to the ground.

[0048] It should be noted that the working principle of the atomization driving circuit provided in this embodiment is: the power supply supplies power to the series inductor, the series inductor starts to work until a stable inductor voltage is generated and transmitted to the aromatherapy atomization sheet, and the aromatherapy atomization sheet starts to work. At the same time, the signal control unit sends a PWM signal, and the PWM signal drives the second and third terminals of the switch unit to be connected, so that the power current flowing through the inductor can be smoothly transmitted to the discharge voltage collection.

[0049] In this embodiment, the driving circuit provided by the embodiment of the present invention is composed of a first resistor, a diode, a series inductor, a switch unit, a second resistor and a third resistor. The atomization driving circuit is used to collect the current flowing through the aromatherapy atomization sheet and send the current to the current collection circuit.

[0050] Optionally, the current acquisition circuit includes: a fourth resistor, a first capacitor, a current amplifier, a fifth resistor, a sixth resistor, a seventh resistor and a second capacitor.

[0051] One end of the fourth resistor is connected to the second end of the switch unit, and the other end is connected to one end of the first capacitor and the first input port of the current amplifier. The other end of the first capacitor is connected to the ground. The second input port of the current amplifier is connected to one end of the fifth resistor and one end of the sixth resistor. One end of the fifth resistor is connected to the ground. The third port of the current amplifier is connected to the other end of the sixth resistor and one end of the seventh resistor. The other end of the seventh resistor and one end of the second capacitor are connected together as the output end of the current acquisition circuit. The output end of the second capacitor is connected to the ground.

[0052] It should be noted that after receiving the current transmitted by the driving circuit, the transmitted power supply current is processed by a current amplifier, the current is converted into a target voltage signal, and the target voltage signal is transmitted to the concentration acquisition unit, wherein the current amplifier includes: a current amplifier and a seventh resistor, the first end of the current amplifier is connected to the first capacitor input end, the second end of the amplifier is connected to the fifth resistor output end and the seventh resistor, the third end of the amplifier is connected to the sixth resistor, the amplifier input end is connected to the power supply, the amplifier output end is connected to the first, and the other end of the seventh resistor is connected to the sixth resistor input end. The current amplifier is used to boost the voltage of the power supply to the target voltage when the switch unit is turned on, so that the concentration acquisition unit works.

[0053] In this embodiment, the current acquisition circuit provided by the present invention is composed of a fourth resistor, a first capacitor, a current amplifier, a fifth resistor and a sixth resistor, and a second capacitor. The current acquisition circuit is used to receive the power supply current transmitted by the driving circuit when the driving circuit switch unit is turned on, and convert the power supply current to a target voltage to enable the concentration sensor to start working.

[0054] Optionally, the current amplifier is used to calculate the ratio of the sixth resistor to the seventh resistor, read the value of the fourth resistor, and determine the output target voltage.

[0055] Specifically, it is necessary to first collect the voltage values ​​on the fourth resistor, the sixth resistor, and the seventh resistor, and then calculate the ratio of the sixth resistor to the seventh resistor based on the collected voltage values ​​on each resistor, use the calculated ratio as the voltage amplification factor, and then use the current value multiplied by the voltage on the fourth resistor and the calculated voltage amplification factor to obtain the target voltage output by the current amplifier.

[0056] In this embodiment, the target voltage value output by the current acquisition circuit is calculated based on the voltage values ​​on the fourth resistor, the sixth resistor, and the seventh resistor and the current flowing through the current acquisition circuit. This embodiment converts the current into a voltage signal, thereby making the measurement and control of the current easier and more accurate.

[0057] Optionally, the concentration acquisition unit detects the concentration of the mixed gas of the ventilator based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit, wherein the mixed gas includes the atomized gas of the aromatherapy atomization sheet and the exhaled gas of the ventilator.

[0058] Specifically, the signal control unit transmits a PWM signal to the switch unit to turn on the switch unit. The power current flowing through the aromatherapy atomizer sheet passes through the current acquisition circuit to form a stable target voltage signal. The current acquisition circuit transmits the target voltage signal to the concentration acquisition device. After the concentration acquisition receives the target voltage signal transmitted by the current acquisition circuit, it starts to collect the atomization concentration in the ventilator pipeline. The concentration acquisition unit transmits the detected atomization concentration detection result to the signal control unit. The signal control unit adjusts the working efficiency of the aromatherapy atomizer sheet according to the concentration detection result.

[0059] Exemplarily, the signal control unit receives the atomization concentration detection result detected by the concentration acquisition unit, and compares it with the preset concentration detection standard. If it is higher than the preset concentration detection standard, the signal control unit will adjust the PWM signal frequency to reduce the atomization efficiency of the aromatherapy atomization sheet. Similarly, if the signal control unit receives the atomization concentration detection result detected by the concentration acquisition unit, and compares it with the preset concentration detection standard, and it is lower than the preset concentration detection standard, the signal control unit will adjust the PWM signal frequency to increase the atomization efficiency of the aromatherapy atomization sheet. In the above example, the signal control unit adjusts the PWM signal frequency according to the atomization concentration detection result detected by the concentration acquisition unit. This is for illustrative purposes only. Other methods can also be used to adjust the PWM signal frequency according to the atomization concentration, and the specific adjustment method is not limited.

[0060] Optionally, the household ventilator also includes a water tank and a pipeline; based on the detection result received by the signal control unit, the efficiency of the water tank in heating the atomized liquid is controlled so that the aromatherapy atomization sheet atomizes the atomized liquid stored in the water tank in the pipeline to form atomized gas.

[0061] Optionally, the pipeline controls the water tank to heat the atomized gas that has been atomized in the pipeline based on the detection result received by the signal control unit, so that the concentration collection unit can detect the concentration of the atomized gas in the pipeline.

[0062] In the present embodiment, in the above-mentioned household ventilator, the signal control unit drives the aromatherapy atomization piece to work, so that the atomized gas is mixed with the oxygen produced by the ventilator in the ventilator pipeline, the atomization concentration in the pipeline is detected, and the concentration detection result is transmitted to the signal control unit, so that the signal control unit adjusts the working efficiency of the aromatherapy atomization piece according to the concentration detection result, and the sleep-inducing substance that calms the nerves and helps sleep is mixed with water and then atomized by high-frequency vibration, and then the atomized perfume is released into the air or the breathing pipeline through the structural pipeline, so that the ventilator adds atomized sleep-inducing substance to the normal function of the ventilator to alleviate the insomnia problem of the user using the ventilator.

[0063] Optionally, the atomization concentration in the pipeline is detected, and the concentration detection result is transmitted to the signal control unit, so that the signal control unit adjusts the working efficiency of the aromatherapy atomization sheet according to the concentration detection result, specifically including: using a concentration sensor to collect the atomization gas concentration in the ventilator pipeline; transmitting the detection result of the atomization gas concentration in the ventilator pipeline to the signal control unit, so that the signal control unit controls the drive circuit to adjust the working efficiency of the aromatherapy atomization sheet.

[0064] Specifically, the concentration sensor detects the atomization concentration in the pipeline and transmits the concentration detection result to the signal control unit. The signal control unit adjusts the PWM signal frequency according to the concentration detection result. After receiving the PWM signal, the driving circuit adjusts the atomization efficiency of the aromatherapy atomizer.

[0065] Optionally, the signal control unit is used to send a PWM signal to control a switch unit in the aromatherapy atomization sheet driving circuit to adjust the working efficiency of the aromatherapy atomization sheet.

[0066] In this embodiment, the above-mentioned household ventilator uses a concentration sensor to collect the concentration of atomized gas in the ventilator pipeline, and transmits the detection result of the atomized gas concentration in the ventilator pipeline to the signal control unit, so that the signal control unit controls the drive circuit and adjusts the working efficiency of the aromatherapy atomizer. In this embodiment, the concentration of atomized gas is detected by using a concentration sensor, and the efficiency of atomization is intelligently adjusted according to the detected atomized gas concentration, so that the atomized gas concentration is kept within a certain concentration, thereby solving the problem of insomnia of users.

[0067] Optionally, in one embodiment, a multifunctional all-in-one machine is provided, which adopts the ventilator atomization control circuit mentioned in any of the aforementioned embodiments to realize the atomization function in the household ventilator mentioned in any of the aforementioned embodiments.

[0068] The multifunctional all-in-one machine comprises an aromatherapy atomizer sheet and an atomization control circuit, wherein the atomization control circuit comprises: a signal control unit, an atomization drive circuit, a current collection circuit and a concentration collection unit.

[0069] The input end of the atomization drive circuit is connected to the output end of the signal control unit, the output end of the atomization drive circuit is connected to the drive end of the aromatherapy atomization sheet, the input end of the current collection circuit is connected to the drive loop of the atomization drive circuit, the output end of the current collection circuit is connected to the input end of the concentration collection unit, and the output end of the concentration collection unit is connected to the input end of the signal control unit.

[0070] The concentration acquisition unit detects the atomization concentration of the aromatherapy atomization sheet based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit; The signal control unit adjusts the output PWM signal based on the detection result, so that the atomization driving circuit drives the aromatherapy atomization sheet to work.

[0071] In this embodiment, the multifunctional all-in-one provided by the embodiment of the present invention is composed of a signal control unit, an atomization drive circuit, a current acquisition circuit, a concentration acquisition unit and an aromatherapy atomization sheet. The atomization drive circuit is used to drive the aromatherapy atomization sheet to work according to the PWM signal input by the signal control unit. The current acquisition circuit is used to receive the power supply current of the drive circuit and convert the collected power supply current into a target voltage signal. The concentration acquisition unit is used to receive the target voltage signal converted by the discharge voltage acquisition circuit, detect the atomization concentration of the aromatherapy atomization sheet, and feed back the detection result to the signal control unit, so that the signal control unit adjusts the drive circuit to drive the aromatherapy atomization sheet according to the detection result. The present invention achieves sleep aid for the user by atomizing the sleep-aiding substance, and can intelligently control the working efficiency of the atomized sleep-aiding substance according to the concentration of the atomized sleep-aiding substance.

[0072] It is worth noting that the present application adopts the ventilator atomization control circuit provided by the embodiment of the present application, in which the driving circuit receives the PWM signal sent by the signal control unit, and controls the third end of the switch unit and the second end of the switch unit to be connected according to the frequency of the PWM signal, so that the power current passes through, and transmits the power current to the current acquisition circuit, and the current acquisition circuit converts the received current into a target voltage, so that the concentration acquisition unit receives the target voltage signal, and the concentration acquisition unit works according to the target voltage signal, and the concentration acquisition unit sends the collected concentration detection result to the signal control unit, and the signal control unit controls the driving circuit of the aromatherapy atomization sheet according to the concentration detection result. The ventilator atomization control circuit in the present application can intelligently control the working efficiency of the atomized sleep-aiding substance according to the concentration of the atomized sleep-aiding substance while ensuring the normal operation of the ventilator.

[0073] Exemplarily, if the high signal control unit receives the atomization concentration detection result detected by the concentration acquisition unit, and compares it with the preset concentration detection standard, if it is higher than the preset concentration detection standard, the signal control unit will adjust the PWM signal frequency to reduce the atomization efficiency of the aromatherapy atomizer. Similarly, if the signal control unit receives the atomization concentration detection result detected by the concentration acquisition unit, and compares it with the preset concentration detection standard, if it is lower than the preset concentration detection standard, the signal control unit will adjust the PWM signal frequency to increase the atomization efficiency of the aromatherapy atomizer. In the above example, the signal control unit adjusts the PWM signal frequency according to the atomization concentration detection result detected by the concentration acquisition unit. This is for illustrative purposes only. Other methods can also be used to adjust the PWM signal frequency according to the atomization concentration, and the specific adjustment method is not limited.

[0074] The above-mentioned multifunctional all-in-one machine, in addition to realizing the atomization function of a home ventilator for sleep-aiding substances, can also atomize inhaled drugs, home aromatherapy and other substances that need to be atomized. There is no limitation on the specific atomized substances, and there is no specific restriction on the specific atomization form.

[0075] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0076] Those of ordinary skill in the art can understand that all or part of the processes in the circuits of the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned circuits. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0077] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0078] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. An atomization control circuit, characterized in that: include: Signal control unit, atomization drive circuit, current collection circuit and concentration collection unit; The input end of the atomization drive circuit is connected to the output end of the signal control unit, the output end of the atomization drive circuit is used to connect to the drive end of the aromatherapy atomization sheet, the input end of the current collection circuit is connected to the drive circuit of the atomization drive circuit, the output end of the current collection circuit is connected to the input end of the concentration collection unit, and the output end of the concentration collection unit is connected to the input end of the signal control unit; The concentration acquisition unit detects the atomization concentration of the aromatherapy atomization sheet based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit; The signal control unit adjusts the output PWM signal based on the detection result, so that the atomization driving circuit drives the aromatherapy atomization sheet to work.

2. The atomization control circuit of the ventilator according to claim 1, characterized in that: The atomization driving circuit comprises: a first resistor, a diode, a series inductor, a switch unit, a second resistor and a third resistor; The first resistor is connected in parallel with the diode, and one parallel end of the first resistor and the diode serves as the input end of the atomization drive circuit. The other parallel end of the first resistor and the diode is connected to the control end of the switch unit and one end of the second resistor. The first end of the series inductor is connected to the power supply, and the inductor common end of the series inductor is connected to the first end of the switch power supply. The inductor common end and the second end of the series inductor are also respectively connected to the two ends of the aromatherapy atomization sheet. The second end of the switch unit is connected to one end of the third resistor and the input end of the current acquisition circuit, and the other end of the third resistor is connected to the ground.

3. The atomization control circuit of the ventilator according to claim 2, characterized in that: The current acquisition circuit includes: a fourth resistor, a first capacitor, a current amplifier, a fifth resistor, a sixth resistor, a seventh resistor and a second capacitor; One end of the fourth resistor is connected to the second end of the switch unit, and the other end is connected to one end of the first capacitor and the first input port of the current amplifier. The other end of the first capacitor is connected to the ground. The second input port of the current amplifier is connected to one end of the fifth resistor and one end of the sixth resistor. One end of the fifth resistor is connected to the ground. The third port of the current amplifier is connected to the other end of the sixth resistor and one end of the seventh resistor. The other end of the seventh resistor and one end of the second capacitor are connected together as the output end of the current acquisition circuit. The output end of the second capacitor is connected to the ground.

4. A household ventilator, characterized in that: It includes an aromatherapy atomizer and an atomization control circuit, wherein the atomization control circuit includes: a signal control unit, an atomization drive circuit, a current collection circuit and a concentration collection unit; The input end of the atomization drive circuit is connected to the output end of the signal control unit, the output end of the atomization drive circuit is connected to the drive end of the aromatherapy atomization sheet, the input end of the current collection circuit is connected to the drive circuit of the atomization drive circuit, the output end of the current collection circuit is connected to the input end of the concentration collection unit, and the output end of the concentration collection unit is connected to the input end of the signal control unit; The concentration acquisition unit detects the atomization concentration of the aromatherapy atomization sheet based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit; The signal control unit adjusts the output PWM signal based on the detection result, so that the atomization driving circuit drives the aromatherapy atomization sheet to work.

5. The household ventilator according to claim 4, characterized in that: The atomization driving circuit comprises: a first resistor, a diode, a series inductor, a switch unit, a second resistor and a third resistor; The first resistor is connected in parallel with the diode, and one parallel end of the first resistor and the diode serves as the input end of the atomization drive circuit. The other parallel end of the first resistor and the diode is connected to the control end of the switch unit and one end of the second resistor. The first end of the series inductor is connected to the power supply, and the inductor common end of the series inductor is connected to the first end of the switch power supply. The inductor common end and the second end of the series inductor are also respectively connected to the two ends of the aromatherapy atomization sheet. The second end of the switch unit is connected to one end of the third resistor and the input end of the current acquisition circuit, and the other end of the third resistor is connected to the ground.

6. The home ventilator according to claim 5, characterized in that: The current acquisition circuit includes: a fourth resistor, a first capacitor, a current amplifier, a fifth resistor, a sixth resistor, a seventh resistor and a second capacitor; One end of the fourth resistor is connected to the second end of the switch unit, and the other end is connected to one end of the first capacitor and the first input port of the current amplifier. The other end of the first capacitor is connected to the ground. The second input port of the current amplifier is connected to one end of the fifth resistor and one end of the sixth resistor. One end of the fifth resistor is connected to the ground. The third port of the current amplifier is connected to the other end of the sixth resistor and one end of the seventh resistor. The other end of the seventh resistor and one end of the second capacitor are connected together as the output end of the current acquisition circuit. The output end of the second capacitor is connected to the ground.

7. A household ventilator according to any one of claims 4 to 6, characterized in that: The concentration acquisition unit detects the concentration of the mixed gas of the ventilator based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit, wherein the mixed gas includes the atomized gas of the aromatherapy atomization sheet and the exhaled gas of the ventilator.

8. The home ventilator according to claim 7, characterized in that: The home ventilator also includes a water tank and a pipeline; The water tank controls the efficiency of heating the atomized liquid by the water tank based on the detection result received by the signal control unit, so that the aromatherapy atomization sheet atomizes the atomized liquid stored in the water tank in the pipeline to form atomized gas.

9. The household ventilator according to claim 8, characterized in that: The pipeline controls the pipeline to heat the atomized gas that has been atomized in the pipeline based on the detection result received by the signal control unit, so that the concentration collection unit can detect the concentration of the atomized gas in the pipeline.

10. A multifunctional machine, characterized in that: It includes an aromatherapy atomizer and an atomization control circuit, wherein the atomization control circuit includes: a signal control unit, an atomization drive circuit, a current collection circuit and a concentration collection unit; The input end of the atomization drive circuit is connected to the output end of the signal control unit, the output end of the atomization drive circuit is connected to the drive end of the aromatherapy atomization sheet, the input end of the current collection circuit is connected to the drive circuit of the atomization drive circuit, the output end of the current collection circuit is connected to the input end of the concentration collection unit, and the output end of the concentration collection unit is connected to the input end of the signal control unit; The concentration acquisition unit detects the atomization concentration of the aromatherapy atomization sheet based on the target voltage signal output by the current acquisition circuit, and feeds back the detection result to the signal control unit; The signal control unit adjusts the output PWM signal based on the detection result, so that the atomization driving circuit drives the aromatherapy atomization sheet to work.

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