CN112023196B - Micropore atomization assembly and device with temperature measurement function - Google Patents
Micropore atomization assembly and device with temperature measurement function Download PDFInfo
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- CN112023196B CN112023196B CN202010752545.3A CN202010752545A CN112023196B CN 112023196 B CN112023196 B CN 112023196B CN 202010752545 A CN202010752545 A CN 202010752545A CN 112023196 B CN112023196 B CN 112023196B
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- 238000000889 atomisation Methods 0.000 title claims abstract description 71
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 161
- 239000002184 metal Substances 0.000 claims abstract description 161
- 239000000758 substrate Substances 0.000 claims abstract description 160
- 239000000919 ceramic Substances 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 4
- 229910001252 Pd alloy Inorganic materials 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 30
- 238000010586 diagram Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 239000003814 drug Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910002056 binary alloy Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- LFSBSHDDAGNCTM-UHFFFAOYSA-N cobalt(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Co+2] LFSBSHDDAGNCTM-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- UYKQQBUWKSHMIM-UHFFFAOYSA-N silver tungsten Chemical compound [Ag][W][W] UYKQQBUWKSHMIM-UHFFFAOYSA-N 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
- B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3368—Temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Electrostatic Spraying Apparatus (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a micropore atomization component and a device with temperature measurement function, which comprises a liquid storage container and a micropore atomization sheet, wherein the micropore atomization sheet comprises: the piezoelectric ceramic chip, the metal substrate, the first electrode and the second electrode; the first electrode and the second electrode are electrically connected with the metal substrate; and the first electrode and the second electrode are used for detecting the temperature of the metal substrate. By adding the electrode on the atomizing sheet, the temperature of the metal substrate on the micropore atomizing sheet can be measured in real time, the driving power is adjusted according to the real-time temperature, the liquid characteristic is prevented from being damaged, and the atomizing sheet is prevented from being burnt in a dry mode.
Description
Technical Field
The invention relates to the technical field of atomizers, in particular to a micropore atomization assembly with a temperature measurement function and a device.
Background
The micropore atomization element belongs to a piezoelectric transduction element, has low power consumption when in use, has the complete machine power of only about 2 watts, and is widely applied to the fields of beauty treatment, medical treatment and the like. The exciting circuit can make the micropore atomization element generate mechanical vibration in the surface for more than 10 ten thousand times per second, atomize the liquid provided by the liquid supply cavity or other liquid supply devices into particles of 1-9um which escape from the micropore area of the metal substrate, thereby realizing atomization. However, the current microporous atomizing elements have the following problems: the vibration frequency of the micropore atomization element is high, heat can be generated in the vibration process, and meanwhile, when no liquid or little liquid exists in the atomization sheet, the dry burning phenomenon can occur, so that the temperature of the atomization sheet and the peripheral liquid of the atomization sheet is increased; and part of the liquid medicine is extremely sensitive to temperature, and the drug property of the liquid medicine is easily damaged when the temperature of the liquid medicine is higher than the temperature limit value which can be borne by the thermosensitive liquid medicine, so that the situation causes a lot of application difficulties for pharmaceutical factories and terminal users. Therefore, it is a technical problem to be solved by those skilled in the art to design a microporous atomization sheet for measuring the temperature of the atomization sheet in real time to overcome the above-mentioned drawbacks.
Most manufacturers currently measure the temperature of the liquid in the atomization cavity by adding a temperature measuring sensor (NTC/PTC) in the atomization cavity. However, the solution has the defects that the difference exists between the liquid temperature measured by the temperature measuring sensor and the temperature on the atomizing sheet, the reaction speed is slow, the temperature on the reaction atomizing sheet cannot be fed back in real time, the temperature on the atomizing sheet may exceed the liquid characteristic temperature limit value, the liquid characteristic is damaged, and the temperature displayed on the temperature measuring sensor does not exceed the liquid characteristic temperature limit value at the moment, so that the atomization control cannot be effectively performed.
Disclosure of Invention
In view of this, the present invention provides a micro-pore atomizing assembly and a device with a temperature measuring function, so as to solve the problem that the temperature on the micro-pore atomizing plate cannot be measured in real time in the prior art.
In order to solve the above technical problems, a first technical solution provided by the present invention is: the utility model provides a micropore atomization component with temperature measurement function, including stock solution container and micropore atomizing piece, the micropore atomizing piece includes: the piezoelectric ceramic chip, the metal substrate, the first electrode and the second electrode; the first electrode and the second electrode are electrically connected with the metal substrate; and the first electrode and the second electrode are used for detecting the temperature of the metal substrate.
The micropore atomization sheet further comprises a third electrode, the third electrode is electrically connected with the piezoelectric ceramic sheet, and the second electrode and the third electrode are used for driving the micropore atomization sheet to work.
The first electrode and the second electrode are arranged at two end points of a line segment which is farthest from the straight line on the metal substrate.
The micropore atomization sheet further comprises a third electrode and a fourth electrode, the third electrode is electrically connected with the piezoelectric ceramic sheet, the fourth electrode is electrically connected with the metal substrate, and the third electrode and the fourth electrode are used for driving the micropore atomization sheet to work.
Wherein the metal substrate comprises a first metal substrate and a second metal substrate; the first metal substrate and the second metal substrate are arranged in a stacked mode; the first metal substrate comprises a plurality of micropores, and the fourth electrode is electrically connected with the first metal substrate; the first electrode and the second electrode are both electrically connected to the second metal substrate.
The first metal substrate and the second metal substrate are arranged on the same side of the piezoelectric ceramic plate; the first metal substrate is a circular sheet, the second metal substrate is a circular ring with an opening and is arranged around the first metal substrate, and the first electrode and the second electrode are arranged at two end points of the opening of the second metal substrate.
The first metal substrate is a wafer and is arranged on the first side of the piezoelectric ceramic piece; the second metal substrate is a circular ring with an opening and is arranged on a second side of the piezoelectric ceramic piece, which is opposite to the first side; the first electrode and the second electrode are disposed at both end points of the second metal substrate opening.
Wherein, the material of the metal substrate is one or more of stainless steel, palladium alloy and nickel alloy.
In order to solve the above technical problems, a second technical solution provided by the present invention is: a micropore atomization device with temperature measurement function is characterized by comprising: a microporous atomizing component and a power supply component; the micropore atomization assembly is any one of the micropore atomization assemblies; the power supply assembly includes:
a voltage module electrically connected to the first electrode and the second electrode for applying a voltage to the metal substrate;
the temperature measurement module comprises a detection unit and a calculation unit; the detection unit is used for acquiring voltage and current on the metal substrate; and the calculating unit calculates the temperature of the metal substrate by using a resistance temperature coefficient formula according to the voltage and the current on the metal substrate acquired by the detecting unit.
Wherein the microporous atomizing component is a microporous atomizing component comprising a first electrode, a second electrode and a third electrode; the power supply assembly further comprises:
the driving module is electrically connected with the second electrode and the third electrode and is used for driving the microporous atomization sheet to work;
the control module controls the working state of the micropore atomization sheet according to the temperature of the metal substrate; and
and the voltage adjusting module is used for adjusting the voltage value applied to the second electrode and the third electrode by the driving module according to the instruction of the control module.
The micropore atomization assembly is a micropore atomization assembly comprising a first electrode, a second electrode, a third electrode and a fourth electrode; the power supply assembly further comprises:
the driving module is electrically connected with the third electrode and the fourth electrode and is used for driving the microporous atomization sheet to work;
the control module controls the working state of the micropore atomization sheet according to the temperature of the metal substrate; and
and the voltage adjusting module is used for adjusting the voltage value applied to the third electrode and the fourth electrode by the driving module according to the instruction of the control module.
The invention has the beneficial effects that: different from the prior art, the invention can measure the tiny resistance of the metal substrate on the micropore atomization sheet in real time by adding the electrode on the atomization sheet, and utilizes the TCR characteristic of the material of the metal substrate to calculate the real-time temperature on the metal substrate by using the resistance temperature relation. The voltage applied to the micropore atomization sheet is adjusted according to the real-time temperature, and the driving power of the micropore atomization sheet is adjusted, so that the temperature on the micropore atomization sheet is controlled not to be too high, the liquid characteristic is prevented from being damaged, and the dry burning of the atomization sheet is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a microporous atomizing device with a temperature measuring function provided by the present invention;
FIG. 2 is a schematic side view of a first embodiment of a microporous atomizing sheet of a microporous atomizing assembly with a temperature measuring function according to the present invention;
FIG. 3 is a schematic top view of a first embodiment of a microporous atomizing sheet of the microporous atomizing assembly with temperature measurement function according to the present invention;
FIG. 4 is a schematic top view of a microporous atomizing sheet of a microporous atomizing assembly with a temperature measuring function according to a second embodiment of the present invention;
FIG. 5 is a schematic side view of a third embodiment of a microporous atomizing sheet of a microporous atomizing assembly with a temperature measuring function according to the present invention;
FIG. 6 is a schematic side view of a microporous atomizing sheet of a fourth embodiment of the microporous atomizing assembly with temperature measurement function according to the present invention;
FIG. 7 is a schematic top view of a microporous atomizing sheet of a fourth embodiment of the microporous atomizing assembly with temperature measurement function according to the present invention;
FIG. 8 is a schematic side view of a fifth embodiment of a microporous atomizing sheet of a microporous atomizing assembly with a temperature measuring function according to the present invention;
FIG. 9 is a schematic bottom view of a fifth embodiment of a microporous atomizing sheet of the microporous atomizing assembly with temperature measurement function according to the present invention;
FIG. 10 is a schematic diagram of the circuit control of the microporous atomizing device with temperature measurement function according to the present invention;
FIG. 11 is a schematic circuit control diagram of an embodiment of the micro-pore atomizing apparatus with temperature measurement function according to the present invention;
FIG. 12 is a schematic circuit control diagram of another embodiment of the microporous atomizing device with temperature measurement function according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.
The terms "first", "second" and "third" in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. The terms "comprising" and "having" and any variations thereof in embodiments of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Fig. 1 is a schematic structural diagram of a microporous atomizing device with a temperature measuring function according to the present invention.
The microporous atomizing device with the temperature measuring function comprises an atomizing component 10, a power supply component 20 and a nozzle 30. The microporous atomizing component 10 comprises a microporous atomizing sheet 11 and a liquid storage container 12; the microporous atomizing sheet 11 is used for atomizing liquid, and the liquid storage container 12 is used for storing the liquid to be atomized. The power supply assembly 20 includes a battery 21 and a control system 22; the battery 21 is used for supplying power to the microporous atomizing assembly 10 to ensure the normal operation of the microporous atomizing assembly 10; the control system 22 is used to control the operating conditions of the micro-porous atomizing assembly 10. The nozzle 30 is provided to facilitate the user's inhalation of the smoke generated by the atomization of the micro-porous atomizing assembly 10.
Wherein, the liquid storage container 12 is made of plastic or other materials, and the storage condition of the liquid to be atomized is met; the shape and size of the liquid storage container 12 are not limited in the present invention, and the requirement of the liquid storage amount can be satisfied.
Referring to fig. 2 and fig. 3, fig. 2 is a schematic side structure diagram of a first embodiment of a microporous atomizing sheet 11 in a microporous atomizing assembly 10 with a temperature measuring function according to the present invention, and fig. 3 is a schematic top structure diagram of the first embodiment of the microporous atomizing sheet 11 in the microporous atomizing assembly 10 with the temperature measuring function according to the present invention.
In one embodiment, the microporous atomizing sheet 11 comprises: a piezoceramic sheet 111, a metal substrate 112, and first 113, second 114 and third 115 electrodes.
The first electrode 113 and the second electrode 114 are electrically connected to the metal substrate 112, and the third electrode 115 is electrically connected to the piezoceramic sheet 111. The first electrode 113 and the third electrode 115, the piezoelectric ceramic sheet 111, the metal substrate 112 and an external circuit form a loop together, and are used for driving the microporous atomization sheet 11 to work; the first electrode 113 and the second electrode 114 form a circuit together with the metal substrate 112 and an external circuit for detecting the temperature of the metal substrate 112. At this time, the second electrode 114 is a common electrode, i.e., a common terminal (GND).
Because of the thermal conductivity of the metal, and the compact design of the atomizing plate, the temperature on the metal substrate 112 can represent the temperature of the entire microporous atomizing plate 11. By detecting the resistance value on the metal substrate 112, the temperature on the metal substrate 112 can be obtained according to the resistance value by utilizing the TCR characteristics of the material of the metal substrate 112, so as to obtain the temperature of the microporous atomization sheet 11.
The metal substrate 112 is a circular wafer, the piezoelectric ceramic plate 111 is a circular ring, and the diameter of the metal substrate 112 is larger than the inner diameter of the piezoelectric ceramic plate 111.
The center area of the piezoelectric ceramic plate 111 is provided with a through hole, and the area of the metal substrate 112 corresponding to the center area of the piezoelectric ceramic plate 111 is provided with a plurality of micropores. The first electrode 113 and the second electrode 114 are disposed at an interval and electrically connected to the metal substrate 112 as long as it is sufficient to detect the resistance of the metal substrate 112. The first electrode 113 and the second electrode 114 may contact with the surface of the metal substrate 112 close to the piezoelectric ceramic plate 111, or may contact with the surface of the metal substrate 112 far from the piezoelectric ceramic plate 111. Other arrangement modes such as a 90-degree included angle or a 180-degree included angle can be formed between the connecting line of the first electrode 113 and the center of the metal substrate 112 and the connecting line of the second electrode 114 and the center of the metal substrate 112. Since the farther the distance between the first electrode 113 and the second electrode 114 is, the larger the resistance value between the first electrode 113 and the second electrode 114 is, the more the detection accuracy is improved; therefore, the first electrode 113 and the second electrode 114 are preferably disposed at two end points in the diameter direction of the metal substrate 112, the measurement range of the resistance is 16-30 milliohms, the sampling precision is high, and the detection accuracy is high.
The micropore atomization plate 11 has different design requirements according to different application devices, the piezoelectric ceramic plate 111 can be set to be a square ring or a ring body with other shapes, and the middle hollow part is used for exposing the area of the metal substrate 112 with micropores. The piezoelectric ceramic sheet 111 may also be a multi-section rectangular sheet or other shapes, and only the region of the metal substrate 112 with the micro-holes may be exposed, which is not limited in the present invention.
The metal substrate 112 with the micro-holes may be a square sheet or a triangular sheet or other sheet-like structure according to the application device; the piezoelectric ceramic piece 111 is a ring body, the middle hollow part is provided with a corresponding shape structure according to the shape structure of the metal substrate 112, and the region of the metal substrate 112 provided with the micropores can be exposed through the hollow region of the piezoelectric ceramic piece 111 ring body.
Further, since the farther the distance between the first electrode 113 and the second electrode 114 is, the more accurate the detection is, it is preferable that the first electrode 113 and the second electrode 114 are disposed at both end points of a line segment on the metal substrate 112, which is the farthest from the straight line. For example, when the metal substrate 112 has a rectangular shape, the first electrode 113 and the second electrode 114 are spaced apart from each other at two ends of a diagonal line of the rectangular shape.
Wherein, the piezoelectric ceramic sheet 111 can be barium titanate system, cobalt titanate lead binary system and the third ABO is added in the binary system 3 (A represents divalent metal ions, B represents tetravalent metal ions or the total of several ions is a positive tetravalent compound) type compound. The metal substrate 112 is made of a metal material with a high Temperature Coefficient of Resistance (TCR), and may be one or more of stainless steel, palladium alloy, and nickel alloy, preferably stainless steel. The first electrode 113, the second electrode 114, and the third electrode 115 may be brass electrodes, red copper electrodes, silver tungsten electrodes, or electrodes made of other materials; the first electrode 113, the second electrode 114, and the third electrode 115 may be straight electrodes, curved electrodes, or threaded electrodes, etc., as long as the operation of the microporous atomization sheet 11 is not affected. The first electrode 113 and the second electrode 114 may be electrically connected to the metal substrate 112 by soldering, conductive paste, or other means; the third electrode 115 may be electrically connected to the piezoceramic sheet 111 by soldering, conductive paste, or other methods, which are not limited in the present invention.
Fig. 4 is a schematic top view of a microporous atomizing sheet of a microporous atomizing assembly with a temperature measuring function according to a second embodiment of the present invention.
The microporous atomizing sheet 11 includes: a piezoceramic sheet 111, a metal substrate 112, and first 113, second 114, third 115 and fourth 116 electrodes.
The first electrode 113, the second electrode 114, and the fourth electrode 116 are electrically connected to the metal substrate 112, and the third electrode 115 is electrically connected to the piezoceramic sheet 111. The third electrode 115 and the fourth electrode 116, the piezoelectric ceramic sheet 111, the metal substrate 112 and an external circuit form a loop together, and are used for driving the microporous atomization sheet 11 to work; the first electrode 113 and the second electrode 114 form a circuit together with the metal substrate 112 and an external circuit for detecting the temperature of the metal substrate 112.
Fig. 5 is a schematic side view of a microporous atomizing sheet of a microporous atomizing assembly with a temperature measuring function according to a third embodiment of the present invention.
In fig. 5, the metal substrate 112 includes a first metal substrate 1121 and a second metal substrate 1122, the first metal substrate 1121 and the second metal substrate 1122 are stacked, and an insulating layer is disposed between the first metal substrate 1121 and the second metal substrate 1122, and the insulating layer is thermally conductive and electrically non-conductive. In other embodiments, the first metal substrate 1121 and the second metal substrate 1122 are directly bonded to each other, and may be integrally formed or bonded together by an adhesive.
The fourth electrode 116 is electrically connected with the first metal substrate 1121, the third electrode 115 is electrically connected with the piezoelectric ceramic sheet 111, and the fourth electrode 116 and the third electrode 115 form a loop together with the piezoelectric ceramic sheet 111, the first metal substrate 1121 and an external circuit, and are used for driving the microporous atomization sheet 11 to work; the first electrode 113 and the second electrode 114 are electrically connected to the second metal substrate 1122, and the first electrode 113 and the second electrode 114 form a loop together with the second metal substrate 1122 and an external circuit, so as to detect the temperature of the metal substrate 112.
The first metal substrate 1121 is a circular wafer having a plurality of micro holes, the second metal substrate 1122 is a circular ring, and the area of the first metal substrate 1121 having the micro holes is exposed to the hollow portion of the central area of the second metal substrate 1122. The first electrode 113 and the second electrode 114 are provided at both end points in the diameter direction of the second metal substrate 1122.
The second metal substrate 1122 may be a notched ring, a multi-segment rectangular plate, or other shapes, and only the region of the first metal substrate 1121 where the micro-holes are formed may be exposed, and the shape of the second metal substrate 1122 is not limited in this disclosure.
Referring to fig. 6 and 7, fig. 6 is a schematic side structure diagram of a microporous atomization sheet in a microporous atomization assembly with a temperature measurement function according to a fourth embodiment of the present invention, and fig. 7 is a schematic top structure diagram of the microporous atomization sheet in the microporous atomization assembly with a temperature measurement function according to the fourth embodiment of the present invention.
In fig. 6 and 7, the first metal substrate 1121 is a circular sheet provided with a plurality of micropores, and is disposed on a first side of the piezoelectric ceramic sheet 111; the second metal substrate 1122 is a notched ring and disposed around the first metal substrate 1121 at a second side of the piezoelectric ceramic plate 111 opposite to the first side. The first electrode 113 and the second electrode 114 are respectively disposed at two end points of the notch of the second metal substrate 1122, and at this time, the distance between the first electrode 113 and the second electrode 114 is the farthest, which is beneficial to improving the detection accuracy.
Referring to fig. 8 and 9, fig. 8 is a schematic side view of a fifth embodiment of a microporous atomizing sheet in a microporous atomizing assembly with a temperature measuring function according to the present invention, and fig. 9 is a schematic bottom view of the fifth embodiment of the microporous atomizing sheet in the microporous atomizing assembly with a temperature measuring function according to the present invention.
In fig. 8 and 9, the first metal substrate 1121 is a circular disk with a plurality of micro-holes, the second metal substrate 1122 is a notched circular ring and surrounds the first metal substrate 1121, the first metal substrate 1121 and the second metal substrate 1122 are disposed on the same side of the piezoelectric ceramic plate 111, and an insulating layer is disposed between the first metal substrate 1121 and the second metal substrate 1122, and the insulating layer is thermally conductive and electrically non-conductive. In other embodiments, the first metal substrate 1121 and the second metal substrate 1122 are directly bonded to each other, and may be integrally formed or bonded together by an adhesive. The first electrode 113 and the second electrode 114 are respectively disposed at two end points of the notch of the second metal substrate 1122, and at this time, the distance between the first electrode 113 and the second electrode 114 is the farthest, which is beneficial to improving the detection accuracy.
In the third, fourth, and fifth embodiments, the first metal substrate 1121, and the second metal substrate 1122 may have different materials, or may have the same material. Preferably, the first metal substrate 1121 and the second metal substrate 1122 have different materials; the second metal substrate 1122 is made of a metal material with a high Temperature Coefficient of Resistance (TCR), which may be one or more of stainless steel, palladium alloy, and nickel alloy, and preferably stainless steel; the Temperature Coefficient of Resistance (TCR) of the material of the first metal substrate 1121 is lower than that of the second metal substrate 1122, so that the temperature measurement is more accurate.
Fig. 10 is a schematic diagram of a circuit control of the micropore atomization device with temperature measurement function according to the present invention.
In a micropore atomizing device having a temperature measuring function, the micropore atomizing device comprises: a microporous atomizing assembly 10 and a power module 20. The micropore atomization component 10 is any one of the micropore atomization components 10 with the temperature measuring function. The power supply assembly 20 includes a battery 21 and a control system 22. The battery 21 can be a lead storage battery, a lead crystal storage battery or a dry battery, and only the requirement that the micropore atomization device can normally work is met, so that the application does not limit the operation.
The control system 22 includes: a voltage module 221 and a temperature measurement module 222. The voltage module 221 is electrically connected with the first electrode 113 and the second electrode 114, and is used for applying voltage to the metal substrate 112 within a preset time; the temperature measurement module 222, the temperature measurement module 222 includes a detection unit 2221 and a calculation unit 2222; the detection unit 2221 is used to obtain the voltage and current on the metal substrate 112; the calculating unit 2222 calculates the temperature of the metal substrate 112 by using a resistance temperature coefficient formula or by looking up a table according to the voltage and the current on the metal substrate 112 acquired by the detecting unit 2221.
The voltage module 221 may be a low dropout regulator (LDO) or a pin of a general purpose input/output (GPIO) of a single chip. The detection unit 2221 measures the current and voltage flowing through the metal substrate 112 through the current collection circuit and the voltage collection circuit. The calculation unit 2222 may be implemented by a processor of a single chip microcomputer. After obtaining the current and the voltage on the metal substrate 112, the calculating unit 2222 may calculate the temperature on the metal substrate 112 through a resistance temperature coefficient formula, or may calculate the temperature on the metal substrate 112 by looking up a resistance temperature relationship table in a storage module (not shown).
Fig. 11 is a schematic circuit control diagram of a micropore atomization device with a temperature measurement function according to an embodiment of the present invention.
In one embodiment, the microporous atomizing device with temperature measurement function further comprises: a drive module 223, a control module 224, and a regulated voltage module 225. The driving module 223 is electrically connected with the second electrode 114 and the third electrode 115 and is used for driving the microporous atomization sheet 11 to work; the control module 224 is used for controlling the working state of the microporous atomizing sheet 11 according to the temperature of the metal substrate 112; and the voltage adjusting module 225 is used for adjusting the voltage value applied to the microporous atomizing sheet 11 by the driving module 223 according to the instruction of the control module 224, so as to change the working state of the microporous atomizing sheet 11.
The functions of the calculating unit 2222 and the control module 224 may be executed by the same controller, and the controller may be a single chip Microcomputer (MCU).
The control module 224 outputs a Pulse Width Modulation (PWM) signal to control the driving module 223 to drive the microporous atomization sheet 11 to atomize, and at the same time, the voltage module 221 applies a voltage to the metal substrate 112 at preset time intervals for a preset duration, for example, outputs a 3V voltage for 3ms at 10ms intervals to the metal substrate 112. In the working process of atomizing the microporous atomizing sheet 11, after the voltage module 221 applies a voltage to the metal substrate 112, the current collecting circuit and the voltage collecting circuit in the detecting unit 2221 collect the voltage and the current on the metal substrate 112, and the calculating unit 2222 calculates the real-time temperature on the metal substrate 112 by using the TCR characteristics of the material of the metal substrate 112. The control module 224 determines whether the real-time temperature exceeds a limit of a temperature that the liquid to be atomized or the piezoelectric ceramic plate can withstand. If the real-time temperature exceeds any one of the temperature limit value which can be borne by the liquid to be atomized and the temperature limit value which can be borne by the piezoelectric ceramic plate, the control module 224 controls the voltage adjusting module 225 to adjust the voltage value applied to the second electrode 114 and the third electrode 115, so as to adjust the power consumption of the microporous atomization plate 11; the microporous atomizing sheet 11 may be deactivated if necessary. When the voltage reduces, the reduction of 11 power consumptions of micropore atomizing piece can reduce the heat that 11 work of micropore atomizing piece produced for temperature on the micropore atomizing piece 11 reduces, and then the temperature of control micropore atomizing piece 11 prevents to destroy liquid characteristic and reduces piezoceramics piece's ceramic performance.
Fig. 12 is a schematic circuit control diagram of another embodiment of the microporous atomizing device with temperature measurement according to the present invention.
In another embodiment, the microporous atomizing device with thermometry function further comprises: a drive module 223, a control module 224, and a regulated voltage module 225. The voltage module 221 is electrically connected with the first electrode 113 and the second electrode 114, and is used for applying voltage to the metal substrate 112; the driving module 223 is electrically connected with the third electrode 115 and the fourth electrode 116, and is used for driving the microporous atomization sheet 11 to work; the control module 224 is used for controlling the working state of the microporous atomizing sheet 11 according to the temperature of the metal substrate 112; and the voltage adjusting module 225 is used for adjusting the voltage value applied to the microporous atomizing sheet 11 by the driving module 223 according to the instruction of the control module 224, so as to change the working state of the microporous atomizing sheet 11.
In this embodiment, the operation principle among the voltage module 221, the temperature measuring module 222, the driving module 223, the control module 224 and the voltage adjusting module 225 is the same as that in the micro-pore atomizing device with temperature measuring function shown in fig. 11, and thus the description thereof is omitted.
The invention can measure the tiny resistance of the metal substrate on the micropore atomization sheet in real time by adding the electrode on the atomization sheet, and the real-time temperature on the metal substrate is calculated by using the TCR characteristic of the material of the metal substrate and the resistance temperature relation. The voltage applied to the micropore atomization sheet is adjusted according to the real-time temperature, and the driving power of the micropore atomization sheet is adjusted, so that the temperature on the micropore atomization sheet is controlled not to be too high, the liquid characteristic is prevented from being damaged, and the dry burning of the atomization sheet is avoided.
The above description is only a partial embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a micropore atomization component with temperature measurement function, includes micropore atomization piece, its characterized in that, micropore atomization piece includes: the piezoelectric ceramic chip comprises a piezoelectric ceramic chip, a metal substrate, a first electrode, a second electrode, a third electrode and a fourth electrode; the metal substrate comprises a first metal substrate and a second metal substrate; the first metal substrate and the second metal substrate are arranged in a laminated mode; the first metal substrate includes a plurality of micro-holes; the first electrode and the second electrode are electrically connected with the second metal substrate; the first electrode and the second electrode are used for detecting the resistance value of the metal substrate to obtain the temperature of the metal substrate; the third electrode is electrically connected with the piezoelectric ceramic sheet, and the fourth electrode is electrically connected with the first metal substrate; the third electrode and the fourth electrode are used for driving the microporous atomization sheet to work.
2. A microporous atomizing assembly with thermometric function according to claim 1, wherein said first electrode and said second electrode are disposed at two end points of a line segment of said metal substrate that is most linearly distant.
3. The microporous atomizing component with temperature measuring function of claim 1, wherein the first metal substrate and the second metal substrate are disposed on the same side of the piezoelectric ceramic plate; the first metal substrate is a circular sheet, the second metal substrate is a circular ring with an opening and is arranged around the first metal substrate, and the first electrode and the second electrode are arranged at two end points of the opening of the second metal substrate.
4. The microporous atomizing component with temperature measuring function of claim 1, wherein the first metal substrate is a wafer and is disposed on the first side of the piezoelectric ceramic plate; the second metal substrate is a circular ring with an opening and is arranged on a second side of the piezoelectric ceramic piece, which is opposite to the first side; the first electrode and the second electrode are disposed at both end points of the opening of the second metal substrate.
5. The micro-porous atomizing assembly with temperature measuring function according to claim 1, wherein the material of said metal substrate is one or more of stainless steel, palladium alloy and nickel alloy.
6. A micropore atomization device with temperature measurement function is characterized by comprising: a microporous atomizing component and a power supply component; the microporous atomizing assembly of any one of claims 1-5; the power supply assembly includes:
a voltage module electrically connected to the first electrode and the second electrode for applying a voltage to the metal substrate;
the temperature measurement module comprises a detection unit and a calculation unit; the detection unit is used for acquiring voltage and current on the metal substrate; and the calculating unit calculates the temperature of the metal substrate by using a resistance temperature coefficient formula according to the voltage and the current on the metal substrate acquired by the detecting unit.
7. The micro-porous atomizing device with temperature measuring function according to claim 6, wherein said power supply module further comprises:
the driving module is electrically connected with the third electrode and the fourth electrode and is used for driving the microporous atomization sheet to work;
the control module controls the working state of the micropore atomization sheet according to the temperature of the metal substrate; and
and the voltage adjusting module is used for adjusting the voltage value applied to the third electrode and the fourth electrode by the driving module according to the instruction of the control module.
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| CN115363284A (en) * | 2021-05-18 | 2022-11-22 | 深圳麦克韦尔科技有限公司 | Atomization assembly, atomizer and atomization device |
| WO2022241646A1 (en) * | 2021-05-18 | 2022-11-24 | 深圳麦克韦尔科技有限公司 | Atomizing assembly, atomizer and atomizing apparatus |
| CN217664227U (en) * | 2021-12-23 | 2022-10-28 | 深圳摩尔雾化健康医疗科技有限公司 | Ultrasonic atomization assembly and ultrasonic atomization device |
| CN114948670A (en) * | 2022-04-28 | 2022-08-30 | 深圳市米谷智能有限公司 | A kind of atomizing device and hand-held beauty instrument |
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