A floating ball atomizing device

Abstract

The present invention relates to the technical field of atomizers, and discloses a floating ball atomizing device, comprising a base, a bottle body arranged on the base, and an atomizing motor, wherein a floating electrode is arranged in the bottle body, and a fixed electrode with a polarity opposite to that of the floating electrode is arranged at the bottom of the bottle body; a control unit is also arranged on the base, and the floating electrode and the fixed electrode are both electrically connected to the control unit, and the control unit is used to receive a current signal and judge the liquid level of the atomized liquid and the actual atomizing rate; the atomizing motor is connected to the control unit by signal, and the control unit is used to compare the actual atomizing rate with the preset atomizing rate and transmit a speed signal to the atomizing motor. After comparing the actual atomizing rate with the preset atomizing rate, the control unit transmits a speed signal to the atomizing motor, adjusts the speed of the atomizing motor, realizes the closed-loop control of "liquid level-atomizing motor speed", realizes the adaptive adjustment of the atomizing rate, outputs the same solute concentration at different liquid levels, and ensures the health of personnel.

Description

Technical Field

[0001] The invention relates to the technical field of atomizers, in particular to a floating ball atomizer. Background Art

[0002] The atomizer uses an air pump to break down the liquid in the liquid container into fine water droplets and distribute them to the surrounding environment. It has been widely used in daily life, such as aromatherapy machines in hotels, lobbies and other places. The atomizer includes an atomizer motor and a liquid storage container. The liquid storage container is simply a container for storing liquid. It cannot obtain the liquid level in time and does not have a liquid level prompt function. The user cannot add atomized liquid in time, causing the atomizer motor to do useless work, resulting in unnecessary energy loss, and cannot meet the requirements of green living.

[0003] The utility model patent with the authorization announcement number CN209645581U and the authorization announcement date of November 19, 2019 discloses an ultrasonic atomizing liquid storage device, including a liquid storage tank, a motor, a transmission rod, a stirring rod, a heater and a liquid level meter. A base is provided at the bottom of the liquid storage tank, a motor is provided on the inner side of the base, a transmission rod is provided on the upper side of the motor, stirring rods are provided on both sides of the transmission rod, a heater is installed between the stirring rods, a motor is provided on the inner side of the stirring rod, a propeller is installed on the lower side of the motor, a through pipe is provided on the lower left side of the liquid storage tank, a control panel is provided on the left side of the liquid storage tank, a liquid level meter is installed on the right side of the liquid storage tank, a transparent glass tube is provided on the inner side of the liquid level meter, the transparent glass tube is connected to the liquid storage tank through a wire, and a float is provided on the inner side of the transparent glass tube. The above-mentioned ultrasonic atomizing liquid storage device installs a liquid level meter on the liquid storage tank, and uses the transparent glass tube and the inner float to detect the liquid level, so that the user can add liquid in time.

[0004] Most of the existing atomizer motors work at a fixed speed, that is, the atomization rate of the atomizer motor remains fixed when the remaining reserve of the atomized liquid changes. However, the actual atomization rate of the atomizer is affected by the working conditions such as the air humidity and temperature of the external environment. For example, the atomizer is used in an aromatherapy machine. Since the aromatic hydrocarbons in the aromatherapy essential oil are low-toxic and most of them are chemically synthesized, there are many chemical toxins in them, which can cause great harm to people. If the concentration of the aroma volatiles of the aromatherapy is too high, inhaling the overly strong fragrance for a long time will be harmful to health.

[0005] When the remaining reserve of the atomized liquid changes, the atomized liquid has different solute concentrations at different liquid levels due to the precipitation of solutes, stratification of different solutions in the mixed solution, etc., resulting in different masses of aromatic hydrocarbons contained in the atomized droplets released at the same atomization rate. As the atomization time increases, the amount of solutes in the mixed solution increases, which will cause the concentration of aroma volatiles in the aromatherapy to be too high. If a high-precision liquid level sensor is used in the atomization container, the cost will increase significantly. Therefore, adaptive adjustment of the atomization rate of the atomization device is crucial. Summary of the invention

[0006] The purpose of the present invention is to provide a float type atomizing device to solve the problem in the prior art that the atomizing rate remains unchanged when the liquid level of the atomized liquid changes, which is harmful to the health of personnel.

[0007] In order to achieve the above object, the present invention provides a floating ball atomizing device, comprising a base, a bottle body arranged on the base and an atomizing motor, wherein a floating electrode for floating on the atomized liquid is arranged in the bottle body, and a fixed electrode with a polarity opposite to that of the floating electrode is arranged at the bottom of the bottle body;

[0008] A control unit is also arranged on the base, and the floating electrode and the fixed electrode are electrically connected to the control unit. The floating electrode and the fixed electrode are used to transmit current signals to the control unit, and the control unit is used to receive the current signals and determine the liquid level of the atomized liquid and the actual atomization rate;

[0009] The atomizing motor is connected to the control unit by signal. A preset atomizing rate is preset in the control unit. The control unit is used to compare the actual atomizing rate with the preset atomizing rate and transmit a rotation speed signal to the atomizing motor.

[0010] Preferably, the floating electrode is a floating ball.

[0011] Preferably, a slide rod extending in a vertical direction is arranged on the bottle body, and the float guide is assembled on the slide rod.

[0012] Preferably, the fixed electrode is a metal probe vertically arranged at the bottom of the bottle body.

[0013] Preferably, the control unit comprises a conductivity detection module for detecting the conductivity of the atomized liquid, and the floating electrode and the fixed electrode are both connected to the conductivity detection module.

[0014] Preferably, the conductivity detection module is an AC bridge, and the floating electrode and the fixed electrode are respectively connected to input ends of the AC bridge.

[0015] Preferably, a display screen is also arranged on the bottle body, and the display screen is connected to the control unit by signal, and the display screen is used to receive the liquid level signal and the atomization rate signal transmitted by the control unit.

[0016] Compared with the prior art, the float-type atomizing device of the embodiment of the present invention has the following beneficial effects: when the liquid level of the atomized liquid changes, the proportions of different solutions in the mixed solution change, the concentration of the conductive ions in the solution changes, and the conductivity of the mixed solution changes; the floating electrode and the fixed electrode have opposite polarities, and the height of the floating electrode changes when the liquid level changes. The control unit detects the value of the conductivity between the floating electrode and the fixed electrode, thereby determining the liquid level of the mixed solution, and the actual atomization rate can be obtained according to the rate of change of the liquid level. The control unit compares the actual atomization rate with the value of the preset atomization rate, and then transmits a speed signal to the atomization motor, adjusts the speed of the atomization motor, and realizes the closed-loop control of "liquid level-atomization motor speed", realizes the adaptive adjustment of the atomization rate, outputs the same solute concentration at different liquid levels, and ensures the health of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall stereogram of the floating ball atomizing device of the present invention;

[0018] Figure 2 yes Figure 1 A top view of a floating ball atomizing device;

[0019] Figure 3 yes Figure 1 A schematic diagram of the internal structure of the bottle body of the floating ball atomizer;

[0020] Figure 4 yes Figure 1 A schematic diagram of the connection between the electrodes and the control unit of the floating ball atomizer;

[0021] Figure 5 yes Figure 1 The structural block diagram of the floating ball atomization device;

[0022] Figure 6 yes Figure 1 Working process diagram of the floating ball atomization device.

[0023] In the figure, 1. slide bar; 2. bottle body; 3. base; 4. switch button; 5. power interface; 6. output port; 7. control unit; 8. display screen; 9. float; 10. metal probe; 11. AC bridge; 201. display module; 202. conductivity detection module; 203. mixed liquid; 204. atomizing motor; 205. adjustment module. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] A preferred embodiment of a floating ball atomizing device of the present invention is as follows Figures 1 to 6 As shown, the float type atomizing device comprises a base 3 and a bottle body 2. The bottle body 2 is arranged on the base 3. The bottle body 2 is used to contain atomized liquid. The base 3 is used to control the operation of the float type atomizing device.

[0026] The bottle body 2 is a cylindrical cavity structure, and the top of the bottle body 2 is an open structure. The bottle body 2 is made of insulating material. In this embodiment, high-density polyethylene (HDPE) is selected. HDPE is a kind of high crystallinity, non-polar surface is translucent to a certain extent, it has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, good mechanical strength, dielectric properties, environmental stress cracking resistance is also good, hardness, tensile strength and creep are better than low-density polyethylene; wear resistance, electrical insulation, toughness and cold resistance are good; chemical stability is good, at room temperature, it is insoluble in any organic solvent, and is resistant to corrosion by acids, alkalis and various salts.

[0027] The bottom of the bottle body 2 is provided with a stepped outer wall surface with a reduced outer diameter, and the bottom of the bottle body 2 is screwed and fixed on the base 3. The bottom of the bottle body 2 is integrally formed with a truncated cone protruding from the bottom surface of the bottle body 2, and the truncated cone is located at the center of the circle of the bottle body 2. A slot coaxial with the bottle body 2 is provided in the truncated cone, and the bottom of the slot is lower than the bottom surface of the bottle body 2, so as to increase the fixing strength of the slide bar 1.

[0028] A slide bar 1 is fixed in the slot. The slide bar 1 is made of insulating material, which is the same material as the bottle body 2. The top of the slide bar 1 exceeds the top of the bottle body 2. A float 9 is sleeved on the slide bar 1. The density of the float 9 is less than the density of the atomized liquid. A metal layer is coated on the outer surface of the float 9. In this embodiment, the metal layer is a copper layer. A wire is fixed on the metal layer of the float 9. The wire on the float 9 is electrically connected to the control unit 7 in the base 3. After the atomized liquid is poured into the bottle body 2, the float 9 floats on the atomized liquid. The float 9 can rise and fall with the change of the liquid level. The float 9 forms a floating electrode.

[0029] The bottom of the bottle body 2 is also provided with a through hole beside the truncated cone, and a metal probe 10 is welded and fixed in the through hole. The metal probe 10 is vertically fixed to the bottom of the bottle body 2, and the metal probe 10 is interference-fitted with the through hole. The metal probe 10 is electrically connected to the control unit 7 in the base 3, and the polarity of the metal probe 10 is opposite to that of the float 9, that is, the metal probe 10 and the float 9 are respectively connected to the positive and negative interfaces of the control unit 7, and the metal probe 10 forms a fixed electrode for detecting the conductivity of the atomized liquid.

[0030] When the liquid level of the atomized liquid changes, the proportion of different solutions in the mixed solution changes, the concentration of the conductive ions in the solution changes, and the conductivity of the mixed solution changes; the polarities of the float 9 and the metal probe 10 are opposite, and the height of the float 9 changes when the liquid level changes. The detection unit detects the change in the conductivity of the atomized liquid through the float 9 and the metal probe 10, and the change in the liquid level of the atomized liquid can be obtained through the value of the conductivity. By using the conductivity of the atomized liquid on the side of the float 9, it is possible to avoid different conductivity of the mixed liquid 203 layers, which affects the measurement results, and ensure the reliability of the liquid level detection device.

[0031] The float 9 can float on the liquid surface as the liquid level changes, and the metal probe 10 is at the bottom of the bottle body 2. When measuring the conductivity of the mixed liquid 203, under the action of the external electric field, the freely moving ions can move directionally from the bottom of the bottle body 2 to the liquid surface, passing through the mixed liquid 203 layers with different conductivity, thereby ensuring the reliability of the liquid level detection result.

[0032] The actual atomization rates of different solutions in the mixed liquid 203 during the atomization process under the same working conditions are different. As the atomization proceeds, the liquid level changes, and the proportions of different solutions in the mixed solution change, causing the conductivity of the mixed solution to change. By measuring the change in the conductivity of the mixed solution, the change in the liquid level can be obtained, thereby performing continuous detection of the liquid level of the atomized liquid.

[0033] The principle of using conductivity to determine the liquid level of the mixed solution 203 is as follows: Assume that the mixed solution 203 contains saturated solution A and saturated solution B in a ratio of a:b, and the conductivity of solution A is The conductivity of solution B is and During the atomization process, the conductivity of saturated solution A and saturated solution B and remains unchanged, the conductivity of the mixed solution 203 is Under the same working conditions, the atomization rate of solution A is v A , the atomization rate of solution B is v B Assume that v A <v B As the atomization proceeds, the liquid level h of the mixed liquid 203 gradually decreases, and the proportion of solution A in the mixed liquid 203 (i.e. ) gradually becomes higher, so the conductivity of the mixed solution 203 Gradually becomes lower, so the "liquid level h-mixed liquid conductivity" can be established "One-to-one matching mechanism. By detecting the conductivity of the mixed solution 203 Under actual working conditions, the corresponding liquid level changes are matched to establish the "liquid level-mixed liquid conductivity" " matching mechanism.

[0034] The base 3 is a cylindrical structure, and an annular groove is formed on the top of the base 3. The annular groove cooperates with the stepped outer wall surface at the bottom of the bottle body 2, so that the bottle body 2 can be screwed on the base 3. After the bottle body 2 is inserted into the base 3, it is connected by a threaded seal. The bottom surface of the base 3 is a plane, so that the base 3 can be supported on the bottom surface. A rectangular groove is opened inside the base 3, and a control unit 7 is installed in the rectangular groove. A power interface 5 and a switch button 4 are also arranged on the base 3. The power interface 5 is used to connect to an external power supply, and the switch button 4 is used to control the start and stop operation of the float type atomization device.

[0035] The control unit 7 includes a conductivity detection module 202, a display module 201 and an adjustment module 205. The conductivity detection module 202 is used to detect the conductivity of the atomized liquid. The float 9 and the metal probe 10 are electrically connected to the positive and negative interfaces of the conductivity detection module 202 respectively; the display module 201 is used to connect to the display screen 8 on the bottle body 2 to display information such as the liquid level; the adjustment module 205 is used to connect to the atomizing motor 204 to adjust the rotation speed of the atomizing motor 204.

[0036] The conductivity detection module 202 is an AC bridge 11, and the float 9 and the metal probe 10 are respectively connected to the input end of the AC bridge 11. The control unit 7 uses the AC bridge 11 to detect the resistance between the float 9 and the metal probe 10, thereby obtaining the conductivity of the solution. Because the metal probe 10 and the float 9 are exposed to the mixed solution 203 environment for a long time, polarization is likely to occur after the direct current is passed. Measuring the conductivity of the mixed solution through the AC bridge 11 can avoid the polarization phenomenon that changes the resistance value when the electrode is immersed in the mixed solution for a long time under direct current, so that the measured liquid level is more reliable and accurate.

[0037] In the AC bridge 11, the detection voltage is assumed to be U e , the resistance of the metal probe 10 and the float 9 is R x , so the output voltage As the level of the mixed liquid 203 changes, R x will change, that is, the conductivity of the mixed solution 203 Occurs with certain regularity, where the detection voltage U e Keep constant, the resistance R1, R2, R3 are all fixed values, so when R x When a certain regular change occurs, the output voltage U0 will also change with a certain regularity. "The matching relationship between the liquid level and the output voltage U0 is established under actual working conditions.

[0038] An output port 6 is also arranged on the base 3, and the output port 6 is connected to the signal of the adjustment module 205 of the control unit 7. The output port 6 is used to connect the signal to the atomization motor 204. The output port 6 can transmit the speed signal of the control unit 7 to the atomization motor 204 to adjust the speed of the atomization motor 204, thereby realizing adaptive adjustment of the atomization rate according to the working conditions.

[0039] The control unit 7 is preset with preset atomization rates corresponding to different liquid levels. The preset atomization rates can be modified according to the needs of the user or the environmental requirements of the atomization device to meet the needs of different users and achieve the most appropriate control effect. The control unit 7 sets a certain actual atomization interval, and the setting of the atomization time interval can be 1s, 2s, 3s, 4s, 5s, 6s, etc. The control unit 7 detects the first liquid level and the second liquid level within the atomization time interval according to the aforementioned principle, calculates the actual atomization rate of the float-type atomization device according to the liquid level difference between the first liquid level and the second liquid level and the atomization time interval, compares the actual atomization rate with the preset atomization rate, and transmits a speed signal to the atomization motor 204 to change the speed of the atomization motor 204, thereby adjusting the actual atomization rate.

[0040] In this embodiment, the control unit 7 adjusts the rotation speed of the atomizer motor 204 by changing the driving voltage of the atomizer motor 204. If the actual atomization rate is greater than the preset atomization rate, the control unit 7 transmits a voltage reduction signal to the atomizer motor 204 to reduce the rotation speed by reducing the driving voltage of the atomizer motor 204; if the actual atomization rate is less than the preset atomization rate, the control unit 7 transmits a pressure increase signal to the atomizer motor 204 to increase the rotation speed by increasing the driving voltage of the atomizer motor 204.

[0041] A display screen 8 is also arranged on the bottle body 2 , and the display screen 8 is signal-connected to the display module 201 of the control unit 7 . The display screen 8 is used to receive and display the liquid level signal and atomization rate signal transmitted by the control unit 7 , and to feed back the actual rotation speed of the atomization motor 204 .

[0042] The working process of the present invention is: connect the power cord to the power interface 5, connect the output port 6 to the atomizing motor 204, start the switch button 4, the float type atomizing device starts atomizing, the atomizing motor 204 pumps the atomized liquid mixed with air in the bottle body 2 to the external environment, and relies on the closed-loop control of "liquid level-atomizing motor speed" to ensure that the actual atomizing rate of the atomizing device always maintains the preset atomizing rate for atomization.

[0043] When the control unit 7 detects the liquid level and adjusts the speed of the atomizing motor 204, the following steps are included:

[0044] Step 301, the operator inputs a preset atomization rate according to the use environment. The preset atomization rate can be modified according to the needs of the user or the environment where the atomization device is located to meet the needs of different users and achieve the most appropriate control effect.

[0045] Step 302, setting the atomization time interval for the control unit 7 to read the liquid level.

[0046] A certain atomization time interval is set, and the control unit 7 reads the liquid level of the mixed liquid in the bottle at the beginning and end of the atomization time interval. The setting of the atomization time interval can be 1s, 2s, 3s, 4s, etc. The size of the atomization time interval determines that the total actual atomization time is closer to the preset atomization time. The shorter the atomization time interval is, the closer to the preset atomization time, but the greater the amount of calculation required for the program, so a suitable atomization time interval should be selected. In the embodiment of the present invention, the atomization time interval is set to 5s.

[0047] Step 303, the control unit 7 obtains the first liquid level. The control unit 7 reads the liquid level at the beginning of the set atomization time interval as the first liquid level. When the float type atomization device just starts atomization, the control unit 7 uses the liquid level of the mixed liquid 203 in the bottle body 2 as the first liquid level.

[0048] Step 304: the control unit 7 determines whether the first liquid level is zero.

[0049] The specific judgment method is that when the liquid level h is zero, there is no medium conducting electricity between the float 9 and the metal probe 10, so the control unit 7 detects that there is no current flowing between the float 9 and the metal electrode, that is, the resistance R between the two x Infinity, output voltage

[0050] Step 305a: If the first liquid level is not zero, the control unit 7 inputs a driving voltage to the atomizing motor 204 according to a preset atomizing rate, and the atomizing motor 204 matches the corresponding rotation speed and starts.

[0051] According to the atomization rate set by the user, the control unit 7 automatically matches the corresponding rotation speed of the atomization motor 204. The rotation speed of the atomization motor 204 can be achieved by controlling the driving voltage of the motor.

[0052] Step 305b: If the first liquid level is zero, the control unit 7 controls the atomizing motor 204 to stop working, and the control unit 7 reminds the user to add liquid through the display screen 8 and the alarm.

[0053] Step 306: the control unit 7 obtains the second liquid level.

[0054] The control unit 7 reads the liquid level of the mixed liquid 203 in the bottle body 2 after the atomization time interval as the second liquid level, that is, the liquid level at the end of the set atomization time interval is used as the second liquid level.

[0055] Step 307: The control unit 7 determines whether the second liquid level is zero. The determination method is the same as the determination method of the first liquid level.

[0056] Step 308a: If the second liquid level is not zero, the control unit 7 calculates the actual atomization rate according to the liquid level difference between the first liquid level and the second liquid level and the atomization time interval.

[0057] The actual atomization rate is calculated by dividing the liquid level difference between the first liquid level and the second liquid level by the time taken for the liquid level of the atomized liquid in the bottle 2 to atomize from the first liquid level to the second liquid level, that is, the set atomization time interval.

[0058] Step 308b: If the second liquid level is zero, the atomizing motor 204 stops working, and reminds the user to add liquid through the display screen 8 and the alarm.

[0059] Step 309 , the control unit 7 compares the actual atomization rate with the preset atomization rate, and adjusts the driving voltage of the atomization motor 204 , so that the atomization motor 204 continues to atomize at the preset atomization rate.

[0060] If the actual atomization rate is greater than the preset atomization rate, the control unit 7 transmits a voltage reduction signal to the atomization motor 204 to reduce the rotation speed by reducing the driving voltage of the atomization motor 204. If the actual atomization rate is less than the preset atomization rate, the control unit 7 transmits a pressure increase signal to the atomization motor 204 to increase the rotation speed by increasing the driving voltage of the atomization motor 204, and continues atomization when the driving voltage is adjusted.

[0061] Finally, steps 303 to 309 are repeated in sequence until the atomization is completed.

[0062] In summary, the embodiment of the present invention provides a float-type atomizing device, when the liquid level of the atomized liquid changes, the proportion of different solutions in the mixed solution changes, the concentration of conductive ions in the solution changes, and the conductivity of the mixed solution changes; the floating electrode and the fixed electrode have opposite polarities, and the height of the floating electrode changes when the liquid level changes. The control unit detects the value of the conductivity between the floating electrode and the fixed electrode, thereby determining the liquid level of the mixed solution, and the actual atomization rate can be obtained according to the rate of change of the liquid level. The control unit compares the actual atomization rate with the value of the preset atomization rate and then transmits a speed signal to the atomization motor, adjusts the speed of the atomization motor, and realizes the closed-loop control of "liquid level-atomization motor speed", realizes adaptive adjustment of the atomization rate, outputs the same solute concentration at different liquid levels, and ensures the health of personnel.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A floating ball atomizing device, characterized in that: It comprises a base, a bottle body arranged on the base and an atomizing motor, wherein a floating electrode for floating on the atomized liquid is arranged in the bottle body, and a fixed electrode with a polarity opposite to that of the floating electrode is arranged at the bottom of the bottle body; A control unit is also arranged on the base, and the floating electrode and the fixed electrode are electrically connected to the control unit. The floating electrode and the fixed electrode are used to transmit current signals to the control unit, and the control unit is used to receive the current signals and determine the liquid level of the atomized liquid and the actual atomization rate; The atomizing motor is signal-connected to the control unit. A preset atomizing rate is preset in the control unit. The control unit is used to compare the actual atomizing rate with the preset atomizing rate and transmit a rotation speed signal to the atomizing motor. The fixed electrode is a metal probe vertically arranged at the bottom of the bottle body. The control unit includes a conductivity detection module for detecting the conductivity of the atomized liquid. The floating electrode and the fixed electrode are both connected to the conductivity detection module.

2. The floating ball atomizing device according to claim 1, characterized in that: The floating electrode is a floating ball.

3. The floating ball atomizing device according to claim 2, characterized in that: A slide bar extending in a vertical direction is arranged on the bottle body, and the float guide is assembled on the slide bar.

4. The floating ball atomizing device according to any one of claims 1 to 3, characterized in that: The conductivity detection module is an AC bridge, and the floating electrode and the fixed electrode are respectively connected to the input end of the AC bridge.

5. The floating ball atomizing device according to any one of claims 1 to 3, characterized in that: The bottle body is also provided with a display screen, which is signal-connected to the control unit and is used to receive a liquid level signal and an atomization rate signal transmitted by the control unit.

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