CN111841921A - Speed-adjustable atomizing device - Google Patents

Speed-adjustable atomizing device Download PDF

Info

Publication number
CN111841921A
CN111841921A CN202010855620.9A CN202010855620A CN111841921A CN 111841921 A CN111841921 A CN 111841921A CN 202010855620 A CN202010855620 A CN 202010855620A CN 111841921 A CN111841921 A CN 111841921A
Authority
CN
China
Prior art keywords
control unit
atomization
liquid level
piezoelectric crystal
bottle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010855620.9A
Other languages
Chinese (zh)
Inventor
张建辉
陈晓生
陈震林
张帆
桂珍珍
黄智�
赖立怡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou University
Original Assignee
Guangzhou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou University filed Critical Guangzhou University
Priority to CN202010855620.9A priority Critical patent/CN111841921A/en
Publication of CN111841921A publication Critical patent/CN111841921A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/081—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to the weight of a reservoir or container for liquid or other fluent material; responsive to level or volume of liquid or other fluent material in a reservoir or container

Landscapes

  • Control Of Non-Electrical Variables (AREA)

Abstract

The invention relates to the technical field of atomizers and discloses a speed-adjustable atomizing device which comprises a seat body, a bottle body and an atomizing motor, wherein a jaw groove is formed in the seat body along the horizontal direction, a piezoelectric crystal is arranged in the jaw groove, and a force transmission amplifying mechanism is also arranged between the bottle body and the piezoelectric crystal; the seat body is also internally provided with a control unit, the control unit is in signal connection with the piezoelectric crystal, and the control unit judges the liquid level of the atomized liquid and the actual atomization rate; the atomizing motor is in signal connection with the control unit, and the control unit is used for transmitting a rotating speed signal to the atomizing motor. The control unit can continuously measure the liquid level in real time by detecting the change of the charge quantity of the piezoelectric crystal, the actual atomization rate can be obtained according to the change rate of the liquid level, the control unit adjusts the rotating speed of the atomization motor after comparing the actual atomization rate with the preset atomization rate, the closed-loop control of the liquid level-the rotating speed of the atomization motor is completed, the same solute concentration is output under different liquid levels, and the physical health of personnel is guaranteed.

Description

Speed-adjustable atomizing device
Technical Field
The invention relates to the technical field of atomizers, in particular to an atomizing device with adjustable speed.
Background
The atomizing device decomposes the liquid contained in the liquid container into fine water drops through the air pump and distributes the fine water drops into the surrounding environment, and the atomizing device is widely applied to daily life, such as aromatherapy machines in hotels, halls and other places. Atomizing device includes atomizing motor and storage liquid container, and storage liquid container is the container of storing liquid only simply, can not learn the liquid level in time, does not possess liquid level prompt facility, and the user can not in time add atomizing liquid, causes atomizing motor to do useless work, causes the unnecessary loss of energy, can not satisfy the requirement of green life.
The utility model discloses an authorization notice number is CN209645581U, the utility model discloses an authorization notice day is 2019.11.19 discloses an ultrasonic atomization stock solution device, including the liquid reserve tank, including a motor, an end cap, a controller, and a cover plate, the transfer line, the puddler, heater and level gauge, the liquid reserve tank bottom is equipped with the base, the base inboard is equipped with the motor, the motor upside is equipped with the transfer line, the transfer line both sides all are equipped with the puddler, install the heater between the puddler, the puddler inboard is equipped with the motor, the screw is installed to the motor downside, liquid reserve tank left side downside is equipped with the siphunculus, the liquid reserve tank left side is equipped with controls the panel, the liquid reserve tank right side is equipped with installs the level gauge, the level. The ultrasonic atomization liquid storage device is characterized in that a liquid level device is arranged on a liquid storage tank, and a transparent glass tube and the inner side of the liquid storage tank are used for floating to detect the liquid level, so that a user can add liquid in time.
Most atomizing motors of the existing atomizing devices work at fixed rotating speeds, namely the atomizing speed of the atomizing motor is kept fixed when the residual storage amount of atomized liquid is changed. However, the actual atomization rate of the atomization device is affected by the working conditions, such as the air humidity and the temperature of the external environment, for example, when the atomization device is applied to an aromatherapy machine, because the aromatic hydrocarbon in the aromatherapy essential oil has low toxicity and is mostly chemically synthesized, and a lot of chemical toxins exist in the aromatic hydrocarbon, the atomization device can cause great harm to people, and if the concentration of the volatile aroma of the aromatherapy is too high, the long-time inhalation of the excessively concentrated aroma can be harmful to health.
When the residual reserve of the atomized liquid changes, the concentration of the solute in the atomized liquid is different under the condition of different liquid levels due to the precipitation of the solute, the layering of different solutions in the mixed solution and the like, so that the quality of aromatic hydrocarbon contained in atomized liquid drops released at the same atomization rate is different, along with the extension of atomization time, when the quantity of the solute in the mixed solution is increased, the concentration of aromatic volatile matters of aroma is too high, and if a high-precision liquid level sensor is arranged in an atomization container in an atomization device, the cost is obviously increased, so that the self-adaptive adjustment of the atomization rate of the atomization device is very important.
Disclosure of Invention
The purpose of the invention is: the utility model provides an atomizing device of adjustable speed to atomizing speed is unchangeable when solving among the prior art liquid level of atomizing liquid and changes, the problem that harmful personnel are healthy.
In order to achieve the purpose, the invention provides a speed-adjustable atomization device which comprises a base body, a bottle body and an atomization motor, wherein the bottle body and the atomization motor are arranged on the base body, a containing cavity for containing atomized liquid is formed in the bottle body, a jaw groove is formed in the base body along the horizontal direction, a piezoelectric crystal is arranged in the jaw groove, a force transmission amplification mechanism is also arranged between the bottle body and the piezoelectric crystal, and the force transmission amplification mechanism is used for converting the gravity of the bottle body in the vertical direction into pressure to the piezoelectric crystal in the horizontal direction;
the seat body is also internally provided with a control unit, the control unit is in signal connection with the piezoelectric crystal, the piezoelectric crystal is used for transmitting a pressure signal to the control unit, and the control unit is used for receiving the pressure signal and judging the liquid level and the actual atomization rate of the atomized liquid;
the atomization motor is in signal connection with the control unit, a preset atomization rate is preset in the control unit, and the control unit is used for comparing the actual atomization rate with the preset atomization rate and transmitting a rotating speed signal to the atomization motor.
Preferably, the two jaw slots are symmetrically arranged by taking the central line of the base body as an axis, and the piezoelectric crystals are respectively arranged in the two jaw slots.
Preferably, the piezoelectric constants of the two piezoelectric crystals are different.
Preferably, the power transmission amplification mechanism comprises a flat plate fixed at the bottom of the bottle body, a connecting rod assembly connected with the two piezoelectric crystals respectively is further arranged on the flat plate, the connecting rod assembly comprises a connecting rod, a rotating shaft and a sliding block, the flat plate is fixedly assembled at the bottom of the bottle body, the connecting rod is arranged in pairs, the top end of the connecting rod is hinged to the connecting rod, the rotating shaft is rotatably assembled at the bottom end of the connecting rod arranged in pairs, the sliding block is fixedly assembled on the rotating shaft, and the sliding block is assembled on the seat body in a sliding mode along the horizontal direction.
Preferably, the connecting rods of the two connecting rod assemblies are arranged crosswise.
Preferably, the base body comprises a base and a bottle shell arranged on the base, the bottle body is sleeved in the bottle shell, the height of the bottle body is higher than that of the bottle shell, and the jaw groove is formed in the inner bottom of the bottle shell.
Preferably, the control unit comprises a liquid level detection module and a charge amplification module, and the charge amplification module is connected between the piezoelectric crystal and the liquid level detection module.
Preferably, a display screen is further arranged on the base body, the display screen is in signal connection with the control unit, and the display screen is used for receiving the liquid level signal and the atomization rate signal transmitted by the control unit.
Compared with the prior art, the speed-adjustable atomization device provided by the embodiment of the invention has the beneficial effects that: the piezoelectric crystal has the characteristic of pressure sensitivity, when the liquid level is changed, the force transmission amplifying mechanism converts the gravity variable quantity of the bottle body into the pressure variable quantity of the piezoelectric crystal in the horizontal direction, and amplifies the gravity variable quantity at the same time by utilizing the positive piezoelectric effect of the piezoelectric crystal, so that the measurement precision and sensitivity are improved, the external force applied to the piezoelectric crystal is changed, the electric charge quantity generated by the piezoelectric crystal is changed along with the change of the applied external force, the control unit can continuously measure the liquid level in real time by detecting the change of the electric charge quantity, the liquid level change can be detected without being directly contacted with atomized liquid, the liquid is prevented from being polluted, and the service life of the atomization device is prolonged; the actual atomization rate can be obtained according to the change rate of the liquid level, the control unit transmits a rotating speed signal to the atomization motor after comparing the actual atomization rate with the preset atomization rate, the rotating speed of the atomization motor is adjusted, closed-loop control of the liquid level and the rotating speed of the atomization motor is completed, the self-adaptive adjustment of the atomization rate is realized, the same solute concentration is output under different liquid levels, and the physical health of personnel is guaranteed.
Drawings
FIG. 1 is a schematic view of the overall construction of the adjustable speed atomizing device of the present invention;
FIG. 2 is a schematic view of the internal structure of the adjustable speed atomizer of FIG. 1;
FIG. 3 is a schematic perspective view of a force transmitting amplifying mechanism of the adjustable speed atomizing device of FIG. 2;
FIG. 4 is a top view of the force transfer amplification mechanism of FIG. 3 mounted in a vial housing;
FIG. 5 is a perspective view of the force transfer amplification mechanism of FIG. 4 mounted in a vial housing;
FIG. 6 is a block diagram of the adjustable speed atomizer of FIG. 1;
fig. 7 is a flow chart of the operation of the adjustable speed atomizing device of fig. 1.
In the figure, 1, a bottle body; 2. a bottle shell; 3. a base; 4. a switch button; 5. a power interface; 6. an output port; 7. a control unit; 8. a display screen; 9. a first piezoelectric crystal; 10. a second piezoelectric crystal; 11. a first slider; 12. a second slider; 13. a flat plate; 14. a bolt; 15. a connecting rod; 16. a nut; 17. a rotating shaft; 18. right angle iron; 19. a force transfer amplification mechanism; 201. a display module; 202. a liquid level detection module; 203. mixing the solution; 204. an atomizing motor; 205. and an adjusting module.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 7, the speed-adjustable atomizing device according to the preferred embodiment of the present invention includes a base, a bottle 1, an atomizing motor 204, a control unit 7, and a piezoelectric crystal, wherein the bottle 1 is disposed on the base, the bottle 1 is used for containing an atomized liquid, the control unit 7 is disposed on the base, the atomizing motor 204 is in signal connection with the control unit 7, and the control unit 7 is used for controlling the action of the atomizing motor 204 to control the operation of the speed-adjustable atomizing device.
The bottle body 1 is a cylindrical cavity mechanism, the inner cavity of the bottle body 1 forms a containing cavity for containing atomized liquid, and the top of the bottle body 1 is of an open structure. The bottle body 1 is made of an insulating material, the bottle body 1 is made of high-density polyethylene (HDPE), the HDPE is a semitransparent material with high crystallinity and a certain nonpolar surface, and has good heat resistance and cold resistance, good chemical stability, higher rigidity and toughness, good mechanical strength, dielectric property and environmental stress cracking resistance, and better hardness, tensile strength and creep property than low-density polyethylene; the wear resistance, the electrical insulation, the toughness and the cold resistance are all good; the chemical stability is good, and the paint is insoluble in any organic solvent and resistant to corrosion of acid, alkali and various salts at room temperature.
The pedestal includes base 3 and bottle shell 2, and bottle shell 2 is the tubular structure, and the top of bottle shell 2 is open structure, and the bottom of bottle shell 2 is provided with the notch cuttype outer wall that the external diameter reduces. Base 3 is cylindrical structure, and the top shaping of base 3 has the annular groove, and the annular groove makes bottle 1 assemble on base 3 with the notch cuttype outer wall cooperation of bottle 1 bottom, and bottle shell 2 adopts screw thread sealing connection with base 3. The bottom surface of the base 3 is a plane, so that the base 3 can be stably supported.
The rectangular channel has been seted up to base 3's inside, installs the control unit 7 in the rectangular channel, has still arranged power source 5 and shift knob 4 on base 3's the outer wall, and power source 5 is used for being connected with external power source, and shift knob 4 is used for controlling opening of this atomizing device and stops the operation. The output port 6 is further arranged on the base 3, the output port 6 is in signal connection with the adjusting module 205 of the control unit 7, the output port 6 is used for being in signal connection with the atomizing motor 204, and the output port 6 can transmit a rotating speed signal of the control unit 7 to the atomizing motor 204 to adjust the rotating speed of the atomizing motor 204, so that the atomizing rate can be adjusted adaptively along with the working condition.
The inner diameter of the bottle shell 2 is larger than the outer diameter of the bottle body 1, the bottle body 1 is coaxially sleeved in the bottle shell 2, and the opening end face of the bottle body 1 is higher than the upper end face of the bottle shell 2. Two pincers mouth grooves have been seted up to the interior bottom of bottle shell 2, and the pincers mouth groove extends along the horizontal direction of bottle shell 2, and two pincers mouth grooves use the central line of bottle shell 2 to arrange as axial symmetry, and two keep silent trench are located the both sides of the diameter direction of bottle shell 2 promptly. The two jaw grooves are internally provided with piezoelectric crystals respectively, the length of each jaw groove is greater than that of each piezoelectric crystal, and the height of each jaw groove is equal to that of each piezoelectric crystal, so that the piezoelectric crystals are limited by the jaw grooves in the vertical direction and can only generate stretching deformation in the horizontal direction.
Two piezoelectric crystals are defined as a first piezoelectric crystal 9 and a second piezoelectric crystal 10 respectively, the first piezoelectric crystal 9 and the second piezoelectric crystal 10 are strip-shaped with the same size, and polarization electrodes of the first piezoelectric crystal 9 and the second piezoelectric crystal 10 are respectively welded with a lead wire to be connected with a signal of the control unit 7. The first piezoelectric crystal 9 and the second piezoelectric crystal 10 are used for converting the pressure signal into an electric signal and transmitting the converted electric signal to the control unit 7, so that the control unit 7 detects the liquid level of the atomized liquid in the bottle body 1.
The piezoelectric crystal has the characteristic of pressure sensitivity, when the piezoelectric crystal is subjected to pressure in a specific direction, electric charge flow can be generated, a pressure signal is converted into an electric signal, the positive piezoelectric effect of the piezoelectric crystal is utilized, when the liquid level changes, the external force applied to the piezoelectric crystal changes, the electric charge amount generated by the piezoelectric crystal changes along with the change of the applied external force, the control unit 7 can continuously measure the liquid level in real time by detecting the change of the electric charge amount, the liquid level change can be detected without directly contacting with atomized liquid, liquid pollution is avoided, and the service life of the atomization device is prolonged.
The piezoelectric constants of the first piezoelectric crystal 9 and the second piezoelectric crystal 10 are different, the relationship between the external force applied to the piezoelectric crystal and the generated charge amount is a curve which changes slowly, and the change speed is related to the magnitude of the piezoelectric constant. The first piezoelectric crystal 9 and the second piezoelectric crystal 10 which are provided with different piezoelectric constants are used for obtaining the relation change curve of the external force borne by the two piezoelectric crystals and the generated electric charge amount, on one hand, a curve with more obvious change trend can be fitted through the addition of the two curves, the effect of improving the sensitivity of liquid level measurement is achieved, on the other hand, whether the control unit 7 breaks down or not can be judged through comparing the change rule of the relation change curve of the external force borne by the two piezoelectric crystals and the generated electric charge amount, and the liquid level detection is more reliable.
The force transmission amplifying mechanism 19 is connected between the bottle body 1 and the piezoelectric crystal, and the force transmission amplifying mechanism 19 is used for converting the gravity of the bottle body 1 in the vertical direction into the pressure of the piezoelectric crystal in the horizontal direction. The force transmission amplifying mechanism 19 comprises a flat plate 13 and two connecting rod assemblies, wherein the flat plate 13 is in a rectangular plate shape, the flat plate 13 is fixedly assembled at the bottom of the bottle body 1, and the two connecting rod assemblies are respectively used for transversely jacking the first piezoelectric crystal 9 and the second piezoelectric crystal 10.
The two connecting rod assemblies have the same structure, and only one connecting rod assembly is taken as an example for description. The connecting rod assembly comprises connecting rods 15, right-angle irons 18, rotating shafts 17 and sliding blocks, the connecting rods 15 are arranged in pairs, and the connecting rods 15 arranged in pairs are parallel to each other and are arranged on two sides of the flat plate 13. Through holes with the diameter equal to that of the through holes in the right-angle iron 18 are formed in the four corners of the flat plate 13, and the flat plate 13 is connected with the right-angle iron 18 through bolts 14. The other side of the supporting leg angle iron is hinged with the top end of the connecting rod 15 in a hinge connection mode, a through hole is formed in the bottom end of the connecting rod 15, and the rotating shaft 17 is rotatably assembled between the two connecting rods 15. The connecting rods 15 of the two groups of connecting rod assemblies are arranged in a crossed mode, so that the diameters of the bottle bodies 1 and the bottle shells 2 are reduced on the premise that the stroke of the connecting rods 15 is guaranteed.
The middle part of pivot 17 is smooth structure, and the external screw thread has been seted up at the axial both ends of pivot 17, and the through-hole on the connecting rod 15 is passed to the external screw thread, and the nut 16 is equipped with to the external screw thread top spin, carries out axial spacing through nut 16 to pivot 17. The smooth part in the middle of the rotating shaft 17 is fixed with a sliding block, the sliding block is of a rectangular column structure, the height of the sliding block is equal to that of the piezoelectric crystal, and the length of the sliding block is larger than that of the piezoelectric crystal. The two groups of slide blocks of the connecting rod assemblies are respectively a first slide block 11 and a second slide block 12, the first slide block 11 is in contact with the first piezoelectric crystal 9, the second slide block 12 is in contact with the second piezoelectric crystal 10, and both the first slide block 11 and the second slide block 12 can slide at the inner bottom of the bottle shell 2 and press the corresponding first piezoelectric crystal 9 and the second piezoelectric crystal 10 along the horizontal direction.
When the liquid level of the atomized liquid in the bottle body 1 changes, the gravity of the atomized liquid acts on the flat plate 13 of the force transmission amplifying mechanism 19, the flat plate 13 pushes the first slide block 11 and the second slide block 12 to move towards the left and the right through the connecting rods 15 which are distributed in a crossed manner, and the first slide block 11 and the second slide block 12 respectively push against one side face of the first piezoelectric crystal 9 and one side face of the second piezoelectric crystal 10 along the horizontal direction. Since the first piezoelectric crystal 9 and the second piezoelectric crystal 10 are limited by the jaw slot in the vertical direction, the first piezoelectric crystal 9 and the second piezoelectric crystal 10 can only expand and contract in the horizontal direction. When the first piezoelectric crystal 9 and the second piezoelectric crystal 10 are compressed and stretched, polarization is generated inside, charges with opposite positive and negative polarities appear on two opposite surfaces, pressure signals are converted into electric signals, and the electric signals are transmitted to the control unit 7 through a lead.
Assuming that the angle between the connecting rod 15 and the horizontal plane is θ, and 0 ° < θ <90 °, the force acting on the flat plate 13 by the bottle 1 and the atomized liquid in the bottle 1 is G, which is obtained from the balance of the forces, the pressure force of the slider acting on the piezoelectric crystal is F ═ G/tan θ. Therefore, when the liquid level of the bottle 1 changes, the force acting on the flat plate 13 of the force transmission amplifying mechanism 19 changes, and the change amount is Δ G, the pressure change amount of the slider acting on the piezoelectric crystal is Δ F ═ Δ G/tan θ, and since 0< tan θ <1, Δ G < Δ F, the force transmission amplifying mechanism 19 has the effect of amplifying the change amount of the force, the amplification effect depends on the magnitude of θ, and the amplification effect is more remarkable as θ approaches 0, and in the preferred embodiment, θ is 15 °.
Under the positive piezoelectric effect of the piezoelectric crystal, when the piezoelectric crystal is deformed under the action of external force along a certain direction, the polarization phenomenon can be generated in the piezoelectric crystal, and meanwhile, charges with opposite positive and negative polarities appear on two opposite surfaces of the piezoelectric crystal. When the force is removed, it returns to its uncharged state and the amount of charge generated is proportional to the force. The control unit 7 can learn the change of the liquid level by detecting the charge change of the first piezoelectric crystal 9 and the second piezoelectric crystal 10.
The control unit 7 comprises a liquid level detection module 203, a display module 201, an adjustment module 205 and a charge amplification module, wherein the charge amplification module is connected between the first piezoelectric crystal 9, the second piezoelectric crystal 10 and the liquid level detection module 203, namely, a polarization electrode of the piezoelectric crystal is connected with the charge amplification module, and then is connected with the liquid level detection module 203 through the charge amplification module. Under the positive piezoelectric effect of the piezoelectric crystal, the liquid level change enables the pressure acting on the piezoelectric crystal to change, the charge quantity generated by the piezoelectric crystal changes along with the change of the pressure, and the weak charge change generated by the piezoelectric crystal is converted into the voltage change in direct proportion to the change of the voltage through the charge amplification module. The display module 201 is used for being in signal connection with the display screen 8 on the bottle body 1 and displaying information such as liquid level and the like; the adjusting module 205 is used for signal connection with the atomizing motor 204 to adjust the rotation speed of the atomizing motor 204.
The liquid level detection module 203 is used for analyzing the voltage transmitted by the charge amplification module and determining the specific liquid level of the atomized liquid in the bottle body 1 according to the voltage. When the adjustable-speed atomization device starts to work, the liquid level detection module 203 of the control unit 7 only needs to detect the change curve of the output voltage of the charge amplifier, then filters external interference factors except the liquid level change through band-pass filtering to obtain the change curve of a single independent variable related to liquid level-voltage, and finally obtains a one-to-one matching mechanism of liquid level-voltage under actual working conditions.
The control unit 7 is internally preset with preset atomization rates which correspond to different liquid levels one by one, and the preset atomization rates can be automatically modified according to the needs of users or the environmental requirements of the atomization device, so as to meet the needs of different users and achieve the most appropriate control effect. The control unit 7 sets certain actual intervals of atomization, and the atomization time intervals can be set to be 1s, 2s, 3s, 4s, 5s, 6s and the like. The control unit 7 detects the first liquid level and the second liquid level in the atomization time interval according to the principle, calculates the actual atomization rate of the 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, transmits a rotation speed signal to the atomization motor 204, changes the rotation speed of the atomization motor 204, and accordingly adjusts the actual atomization rate.
In this embodiment, the control unit 7 adjusts the rotation speed of the atomizing motor 204 by changing the driving voltage of the atomizing motor 204, and if the actual atomizing rate is greater than the preset atomizing rate, the control unit 7 transmits a voltage reduction signal to the atomizing motor 204, and reduces the rotation speed by reducing the driving voltage of the atomizing motor 204; if the actual atomization rate is smaller than the preset atomization rate, the control unit 7 transmits a pressurization signal to the atomization motor 204, and increases the rotation speed by increasing the driving voltage of the atomization motor 204.
The bottle shell 2 is also provided with a display screen 8, the display screen 8 is in signal connection with the display module 201 of the control unit 7, and the display screen 8 is used for receiving and displaying the liquid level signal and the atomization rate signal transmitted by the control unit 7 and feeding back the actual rotating speed of the atomization motor 204.
The working process of the invention is as follows: the power cord is connected to the power interface 5, the output port 6 is connected with the atomizing motor 204, the switch button 4 is started, the adjustable-speed atomizing device starts atomizing, the atomizing motor 204 pumps atomized liquid mixed air in the bottle body 1 to the external environment, and the actual atomizing rate of the atomizing device is always kept at the preset atomizing rate for atomizing by means of closed-loop control of liquid level-atomizing motor 204 rotating speed.
When the control unit 7 detects the liquid level and adjusts the rotating speed of the atomizing motor 204, the method comprises the following steps:
step 301, an operator inputs a preset atomization rate according to a use environment. The preset atomization rate can be automatically modified according to the requirements of users or the environmental requirements of the atomization device, so as to meet the requirements of different users and achieve the most appropriate control effect.
Step 302, the control unit 7 is set to read the atomization time interval of the liquid level.
A certain atomization time interval is set, and the control unit 7 reads the liquid level of the mixed liquid 203 in the bottle bodies 1 at the head and tail ends of the atomization time interval. The atomization time interval may be set to 1s, 2s, 3s, 4s, 6s, etc. The size of the atomization time interval determines that the closer the total actual atomization time is to the preset atomization time, the shorter the atomization time interval is, the closer the total actual atomization time is to the preset atomization time, but the more calculation of the required program is, the more appropriate atomization time interval should be selected. In the embodiment of the present invention, the atomization time interval is set to 5 s.
Step 303, the control unit 7 obtains a first liquid level. The control unit 7 reads the liquid level at the head of the set atomization time interval as the first liquid level. When the speed-adjustable atomizing device starts atomizing, the control unit 7 uses the liquid level of the mixed liquid 203 in the bottle 1 as the first liquid level.
In step 304, the control unit 7 determines whether the first level is zero.
The specific determination method is that, assuming that no liquid is stored in the bottle body 1, the net weight of the bottle body 1 is m1The weight of the solution stored in the bottle body 1 is m2. The force acting on the end face of the force transmission amplification mechanism 19 perpendicular to the end face is G ═ m (m)1+m2) G (where G is the gravitational acceleration at the position of the detection device), the pressure amplification factor of the force transmission amplification mechanism 19 is λ, and the force perpendicular to the contact surface, which acts on the piezoelectric crystal via the force transmission amplification mechanism 19, is F ═ λ · G.
Since the piezoelectric crystal is subjected to the pressure to generate thickness deformation,according to the longitudinal piezoelectric effect of the piezoelectric crystal, the generated surface charge is Q ═ d · F, (where d is the piezoelectric constant of the piezoelectric crystal), and thus the piezoelectric crystal generates a surface charge Q ═ d · λ · (m ═ d · λ · (m ·)1+m2)·g。
As the liquid level changes (i.e., the weight of the solution stored in the bottle body 1 is m)2Changed), the surface charge Q generated by the piezoelectric crystal also changes, and the liquid level and the generated charge Q have a one-to-one correspondence relationship. When the liquid is not stored in the bottle 1, the control unit 7 detects the charge Q generated on the surface of the piezoelectric crystal as d.lambda.m1G, i.e. the liquid level is zero.
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 is started in a matching manner with a corresponding rotating speed.
According to the atomization rate set by the user, the control unit 7 automatically matches the corresponding rotation speed of the atomization motor 204, and the rotation speed of the atomization motor 204 can achieve the purpose by controlling the driving voltage of the motor.
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.
In step 306, the control unit 7 obtains a second liquid level.
The control unit 7 reads the liquid level of the mixed liquid 203 in the bottle body 1 after the atomization time interval, and the liquid level is used as a second liquid level, that is, the liquid level at the tail end of the set atomization time interval is used as the second liquid level.
In step 307, the control unit 7 determines whether the second level is zero. The judging method is consistent with the judging method of the first liquid level.
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.
The actual atomization rate is calculated by dividing the difference between the first and second liquid levels by the time taken for the liquid level of the atomized liquid in the bottle 1 to atomize from the first liquid level to the second liquid level, i.e., the set atomization time interval.
And 308b, if the second liquid level is zero, the control unit 7 controls the atomizing motor 204 to stop working, and reminds a user to add liquid through the display screen 8 and the alarm.
Step 309, the control unit 7 compares the actual atomization rate with a preset atomization rate, adjusts the driving voltage of the atomization motor 204, and the atomization motor 204 continues to atomize at the preset atomization rate.
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, and reduces the rotation speed by reducing the driving voltage of the atomization motor 204. If the actual atomization rate is smaller than the preset atomization rate, the control unit 7 transmits a pressurization signal to the atomization motor 204, increases the rotation speed by increasing the driving voltage of the atomization motor 204, and continues atomization when the driving voltage is adjusted.
Finally, steps 303-309 are repeated in sequence until atomization is complete.
To sum up, the embodiment of the present invention provides an atomization device with adjustable speed, wherein a piezoelectric crystal has a pressure-sensitive characteristic, and generates a charge flow when receiving a pressure in a specific direction, and converts a pressure signal into an electrical signal, and when a liquid level changes, a force transmission amplifying mechanism converts a gravity variation of a bottle body into a pressure variation of the piezoelectric crystal in a horizontal direction, and amplifies the gravity variation to improve measurement accuracy and sensitivity; the actual atomization rate can be obtained according to the change rate of the liquid level, the control unit transmits a rotating speed signal to the atomization motor after comparing the actual atomization rate with the preset atomization rate, the rotating speed of the atomization motor is adjusted, closed-loop control of the liquid level and the rotating speed of the atomization motor is completed, the self-adaptive adjustment of the atomization rate is realized, the same solute concentration is output under different liquid levels, and the physical health of personnel is guaranteed.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (8)

1. The speed-adjustable atomizing device is characterized by comprising a base body, a bottle body and an atomizing motor, wherein the bottle body and the atomizing motor are arranged on the base body, a containing cavity for containing atomized liquid is formed in the bottle body, a jaw groove is formed in the base body in the horizontal direction, piezoelectric crystals are arranged in the jaw groove, a force transmission amplifying mechanism is further arranged between the bottle body and the piezoelectric crystals, and the force transmission amplifying mechanism is used for converting the gravity of the bottle body in the vertical direction into pressure on the piezoelectric crystals in the horizontal direction;
the seat body is also internally provided with a control unit, the control unit is in signal connection with the piezoelectric crystal, the piezoelectric crystal is used for transmitting a pressure signal to the control unit, and the control unit is used for receiving the pressure signal and judging the liquid level and the actual atomization rate of the atomized liquid;
the atomization motor is in signal connection with the control unit, a preset atomization rate is preset in the control unit, and the control unit is used for comparing the actual atomization rate with the preset atomization rate and transmitting a rotating speed signal to the atomization motor.
2. The adjustable speed atomizing device according to claim 1, wherein two of said jaw slots are disposed in axial symmetry with respect to a center line of said base, and said piezoelectric crystals are disposed in each of said two jaw slots.
3. The adjustable speed atomizing device of claim 2, wherein the piezoelectric constants of the two piezoelectric crystals are different.
4. The adjustable speed atomizer of claim 2, wherein said force-transmitting amplifying mechanism comprises a plate fixed to the bottom of said bottle, said plate further comprising a connecting rod assembly connected to each of said two piezoelectric crystals, said connecting rod assembly comprising a connecting rod, a rotating shaft and a sliding block, said plate being fixedly mounted to the bottom of said bottle, said connecting rods being arranged in pairs, the top ends of said connecting rods being hinged to said connecting rods, said rotating shaft being rotatably mounted to the bottom ends of said connecting rods arranged in pairs, said sliding block being fixedly mounted to said rotating shaft, said sliding block being slidably mounted to said base in a horizontal direction.
5. An adjustable speed atomizing device according to claim 4, wherein the connecting rods of the two connecting rod assemblies are arranged crosswise.
6. The adjustable speed atomizing device according to any one of claims 1 to 5, wherein the seat body comprises a base and a bottle housing disposed on the base, the bottle body is sleeved in the bottle housing, the height of the bottle body is higher than that of the bottle housing, and the jaw groove is opened at the inner bottom of the bottle housing.
7. The adjustable speed atomizing device according to any one of claims 1 to 5, wherein the control unit comprises a liquid level detection module and a charge amplification module, and the charge amplification module is connected between the piezoelectric crystal and the liquid level detection module.
8. The adjustable speed atomizing device according to any one of claims 1 to 5, wherein a display screen is further disposed on the base, the display screen is in signal connection with the control unit, and the display screen is configured to receive the liquid level signal and the atomizing rate signal transmitted by the control unit.
CN202010855620.9A 2020-08-21 2020-08-21 Speed-adjustable atomizing device Pending CN111841921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010855620.9A CN111841921A (en) 2020-08-21 2020-08-21 Speed-adjustable atomizing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010855620.9A CN111841921A (en) 2020-08-21 2020-08-21 Speed-adjustable atomizing device

Publications (1)

Publication Number Publication Date
CN111841921A true CN111841921A (en) 2020-10-30

Family

ID=72970036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010855620.9A Pending CN111841921A (en) 2020-08-21 2020-08-21 Speed-adjustable atomizing device

Country Status (1)

Country Link
CN (1) CN111841921A (en)

Similar Documents

Publication Publication Date Title
CN208721636U (en) A kind of semi-automatic titration device
CN111940217A (en) Atomizing device of self-adaptation speed regulation
CN212284518U (en) Speed-adjustable atomizing device
CN111841921A (en) Speed-adjustable atomizing device
CN208366761U (en) A kind of novel quick determination of solid content equipment
CN212284629U (en) Atomizing device of self-adaptation speed regulation
CN214066050U (en) Building levelness detection device
CN206469868U (en) A kind of cage guide top surface distance meter
CN111974572A (en) Atomization method of atomization device
CN215690207U (en) Air output adjustable champignon machine
CN209166325U (en) Based on monolithic processor controlled angle measurement unit
CN208173051U (en) A kind of BMS real training three-dimensional rotation bracket
CN212263607U (en) Floating ball type atomization device
CN101806648A (en) Electric digital micromanometer
CN212674354U (en) Carbon roller metal shaft head balance calibration device
CN2509574Y (en) Bearing vibration measurer
CN111841920A (en) Floating ball type atomization device
CN209576724U (en) A kind of Special combined dropper for chemical laboratory
CN209471010U (en) A kind of viscosimeter convenient for controlling temperature
CN206622123U (en) A kind of quantitative liquid taking device
CN216837286U (en) PH value monitoring and adjusting device
CN216148678U (en) Hand-held fragrance-regulating pen
CN220039548U (en) Oil mass sensor check out test set
CN210037068U (en) Function test machine for automobile pressure sensor
CN220416815U (en) Height-adjustable environment monitoring device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination