Tobacco tar stock detection atomizer and electronic atomization device

Abstract

According to the tobacco tar stock detection atomizer and the electronic atomization device, a tar quantity detection assembly is arranged, a magnetic dipole is arranged on the liquid level in a tar storage cavity and floats up and down along with the height of the liquid level of the tobacco tar, the height from the bottom to the top of the whole tar storage cavity is the floating range of the magnetic dipole, and the magnetic dipole forms a magnetic field in the tar storage cavity; a Hall sensor is arranged outside the oil storage cavity to sense the magnetic field intensity generated by the magnetic dipole, as the magnetic dipole floats up and down on the liquid level, analog voltage output by the Hall sensor can change, and the larger the magnetic field intensity is, the larger the output analog voltage is; and the Hall sensor judges the stock of the tobacco tar in the tar storage cavity according to the magnitude of the output analog voltage signal. The oil quantity detection assembly is not complex in structural design and electronic design, easy to implement and low in cost, the sealing performance of the oil storage cavity is not affected, the tobacco tar storage amount in the atomizer can be accurately detected, and therefore the situations that the atomization assembly is burnt, and the service life and the smoking taste are affected are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette substitutes, and in particular to a cigarette oil stock detection atomizer and an electronic atomization device. Background Art

[0002] An electronic atomizer is an electronic product that imitates cigarettes and can atomize tobacco oil into smoke for users to inhale. Due to the similar taste and convenience of inhalation as cigarettes, electronic atomizers have been rapidly promoted and used.

[0003] Existing electronic atomization devices generally include a battery host and an atomizer. The atomizer is the smoke generating part of the electronic atomization device. The atomizer stores smoke oil. High temperature will cause the smoke oil to atomize and form smoke. The battery host is the control center and power supply part of the electronic atomization device. The amount of smoke oil in the oil tank of the atomizer will gradually decrease with high-temperature atomization. However, for electronic atomization devices, since most of the oil tanks are built into the shell, the amount of smoke oil in the oil tank cannot be seen from the outside. If the electronic atomization device is used without knowing the amount of smoke oil, it is easy to burn the oil guide cotton and heating wire in the atomizer due to insufficient oil, and the smoker will smell burnt, which will harm the smoker's health and damage the electronic atomization device.

[0004] At present, the industry's methods for judging the amount of e-liquid remaining include: 1. Software calculation. Based on the fact that the amount of e-liquid consumed per unit time at a specific power is fixed, it can be deduced that the total amount of e-liquid is approximately in correspondence with the smoking time. During the smoking process, the duration of each smoking session is accumulated, and the duration of the smoking process is subtracted from the total duration to obtain the remaining amount of oil; 2. Float level detection. The amount of liquid remaining is determined by the ups and downs of the float. When the liquid level rises, the float floats up, and when the liquid level drops, the float sinks; 3. Pressure level detection. The pressure level gauge determines the liquid level by measuring the liquid pressure. It converts the pressure signal into a liquid level value through a formula; 4. Capacitive level detection. The liquid level is determined by measuring the change in capacitance. The electrodes are installed inside and outside the container. When the liquid level rises or drops, the capacitance value changes. Based on this change, the height of the liquid level can be determined; 5. Ultrasonic liquid level detection uses the transmission time of ultrasonic waves to measure the liquid level. By emitting ultrasonic pulses and measuring the transmission time of ultrasonic waves from the transmitter to the liquid surface, the height of the liquid level can be determined based on the wave speed and transmission time.

[0005] However, the software calculation cannot make an accurate assessment because the e-liquid consumed per unit time when the battery is fully charged is more than that consumed when it is not fully charged; the float liquid level detection structure is complex in design and cannot be sealed; the pressure liquid level detection is costly to implement and the structure is difficult to implement; the capacitive liquid level detection and ultrasonic liquid level detection have complex electronic circuit design and high cost; all of them cannot meet the actual use needs well. Summary of the invention

[0006] Based on this, it is necessary to provide a smoke oil level detection atomizer and electronic atomization device that has simple structural and electronic design, simple implementation, low cost, and accurate evaluation to address the above problems.

[0007] A smoke oil level detection atomizer comprises a shell, a base and an atomizer assembly, wherein the shell comprises a nozzle end and an open end, the base is plugged into the open end of the shell, and an oil storage chamber and an atomizer chamber are formed inside the shell, the oil storage chamber is communicated with the atomizer via an oil guide hole, the atomizer assembly is arranged in the atomizer chamber, and the atomizer assembly guides oil to the oil storage chamber via the oil guide hole, and further comprises an oil level detection assembly, the oil level detection assembly comprises a Hall sensor and a magnetic dipole, the magnetic dipole is arranged in the oil storage chamber, and the magnetic dipole floats up and down with the smoke oil level in the oil storage chamber, the Hall sensor is arranged outside the oil storage chamber, and the Hall sensor outputs an analog voltage signal according to the magnetic field strength generated by the magnetic dipole to judge the smoke oil level in the oil storage chamber.

[0008] In one embodiment, the Hall sensor is a linear Hall sensor, the magnetic dipole is a bar magnet including an N pole and an S pole, and the N pole and the S pole are respectively located below and above the liquid surface of the oil storage chamber, and the linear Hall sensor is directly opposite to the magnetic dipole.

[0009] In one of the embodiments, the oil level detection component is provided with two linear Hall sensors, the two linear Hall sensors are respectively arranged at the bottom and the top of the oil storage cavity, and the magnetic dipole is located between the two Hall sensors.

[0010] In one of the embodiments, a limit member is provided in the oil storage cavity, and the limit member restricts the magnetic dipole to float only in the direction of the liquid level height in the oil storage cavity.

[0011] In one of the embodiments, the limiting member is provided with a limiting groove extending from the bottom of the oil storage cavity to the top of the oil storage cavity, the magnetic dipole is partially embedded in the limiting groove, and the magnetic dipole moves in the limiting groove.

[0012] An electronic atomization device comprises a battery host and the above-mentioned smoke oil level detection atomizer, wherein the battery host and the smoke oil level detection atomizer are adapted to each other.

[0013] In one embodiment, the battery host is provided with a main control board, the Hall sensor is electrically connected to the main control board, and the three pins of the Hall sensor are respectively connected to the positive pole of the power supply, the negative pole of the power supply and the output voltage, and the main control board is provided with a program corresponding to the output voltage and the amount of e-liquid, and the amount of e-liquid can be judged according to the output voltage.

[0014] In one embodiment, the battery host is provided with a warning light, and the warning light provides feedback on the amount of tobacco oil in the oil storage chamber by displaying different colors.

[0015] In one embodiment, the battery host is provided with a display screen, and the display screen displays the amount of tobacco oil in the oil storage chamber.

[0016] The above-mentioned smoke oil level detection atomizer and electronic atomization device have at least the following advantages:

[0017] The smoke oil level detection atomizer is provided with an oil level detection component, and a magnetic dipole is provided on the liquid surface in the oil storage chamber to float up and down with the height of the smoke oil level. The height from the bottom to the top of the entire oil storage chamber is the floating range of the magnetic dipole, and the magnetic dipole forms a magnetic field in the oil storage chamber; a Hall sensor is provided outside the oil storage chamber to sense the magnetic field strength generated by the magnetic dipole. As the magnetic dipole floats up and down on the liquid surface, the analog voltage output by the Hall sensor will change. The greater the magnetic field strength, the greater the output analog voltage; the Hall sensor determines the smoke oil level in the oil storage chamber based on the output analog voltage signal. The structural design and electronic design of the oil level detection component are not complicated, and the implementation is simple and low-cost. It does not affect the sealing performance of the oil storage chamber, and can accurately detect the smoke oil level in the atomizer, thereby avoiding the situation of burning the atomizer component, affecting the service life and the smoking taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional view of the electronic atomization device of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the oil storage chamber of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the magnetic dipole of the present invention;

[0021] Figure 4 This is the magnetoelectric characteristic curve of the Hall sensor of the present invention when the output voltage is 5V.

[0022] Description: 10, atomizer; 12, housing; 122, oil storage chamber; 124, atomization chamber; 126, limiter; 14, base; 16, atomization assembly; 18, oil level detection assembly; 182, Hall sensor; 184, magnetic dipole; 20, battery host; 22, main control board. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] See also Figure 1 , is a schematic diagram of the structure of an electronic atomization device in one embodiment.

[0027] See also Figure 1 , Figure 2 The atomizer 10 is an aerosol generating device of an electronic atomization device, which is used to generate heat when powered on, so that the smoke oil in the atomizer 10 forms an aerosol for the user to inhale. The smoke oil level detection atomizer 10 includes a shell 12, a base 14 and an atomizer assembly 16. The shell 12 includes a mouthpiece end and an open end. The base 14 is plugged into the open end of the shell 12, and an oil storage chamber 122 and an atomizer chamber 124 are formed inside the shell 12. The oil storage chamber 122 is connected to the atomizer 10 through an oil guide hole. The atomizer assembly 16 is arranged in the atomizer chamber 124, and the atomizer assembly 16 guides oil to the oil storage chamber 122 through the oil guide hole. The oil level detection atomizer 10 includes a shell 12, a base 14 and an atomizer assembly 16. The shell 12 includes a mouthpiece end and an open end. The base 14 is plugged into the open end of the shell 12, and an oil storage chamber 122 and an atomizer chamber 124 are formed inside the shell 12. The oil storage chamber 122 is connected to the atomizer 10 through an oil guide hole. The atomizer assembly 16 is arranged in the atomizer chamber 124, and the atomizer assembly 16 guides oil to the oil storage chamber 122 through the oil guide hole. The detection component 18 includes a Hall sensor 182 and a magnetic dipole 184. The magnetic dipole 184 is disposed in the oil storage chamber 122, and the magnetic dipole 184 floats up and down with the height of the tobacco oil level in the oil storage chamber 122. The Hall sensor 182 is disposed outside the oil storage chamber 122. The Hall sensor 182 outputs an analog voltage signal according to the magnetic field strength generated by the magnetic dipole 184 to determine the tobacco oil stock in the oil storage chamber 122.

[0028] The smoke oil level detection atomizer 10 is provided with an oil level detection component 18, and a magnetic dipole 184 is provided on the liquid surface in the oil storage chamber 122 to float up and down with the height of the smoke oil level. The height from the bottom to the top of the entire oil storage chamber 122 is the floating range of the magnetic dipole 184, and the magnetic dipole 184 forms a magnetic field in the oil storage chamber 122; a Hall sensor 182 is provided outside the oil storage chamber 122 to sense the magnetic field strength generated by the magnetic dipole 184, and as the magnetic dipole 184 floats up and down on the liquid surface, the analog voltage output by the Hall sensor 182 will change, and the greater the magnetic field strength, the greater the output analog voltage; the Hall sensor 182 determines the smoke oil level in the oil storage chamber 122 according to the size of the output analog voltage signal. The structural design and electronic design of the oil quantity detection component 18 are not complicated, the implementation is simple, the cost is low, and it does not affect the sealing performance of the oil storage chamber 122. It can accurately detect the amount of tobacco oil in the atomizer 10, thereby avoiding the situation where the atomization component 16 is burned and the service life and the smoking taste are affected.

[0029] See also Figure 3 In this embodiment, the Hall sensor 182 is a linear Hall sensor, and the magnetic dipole 184 is a bar magnet including an N pole and an S pole, and the N pole and the S pole are respectively located below and above the liquid surface of the oil storage chamber 122, and the linear Hall sensor is directly opposite to the magnetic dipole 184. The magnetic dipole 184 generates a magnetic field in the oil storage chamber 122, and the magnetic lines of force flow from the S pole to the N pole. In the field of the magnetic dipole 184, the magnetic induction intensity is inversely proportional to the square of the distance, and the magnetic induction intensity is almost zero at a place far away from the magnetic dipole 184; the magnetic dipole 184 floats up and down with the liquid surface of the oil storage chamber 122, and the distance between it and the Hall sensor 182 will also change, thereby affecting the analog voltage output by the Hall sensor 182.

[0030] Specifically, the linear Hall sensor (IC HAL4901) can detect the strength of the external magnetic field and output an analog voltage signal. The stronger the external magnetic field, the greater the output analog voltage. The magnetic field range of the linear Hall sensor is ±100GS; the sensitivity is 15mV / GS; the linear Hall sensor package product, pin 1 VDD is connected to the positive pole of the power supply; pin 2 GND is connected to the negative pole of the power supply; pin 3 is the analog voltage output pin, and different analog voltage values ​​are output according to the strength of the magnetic field detected by the linear Hall sensor. For example, if VDD is 5V, the output voltage of pin 3 OUT is Figure 4 As shown in the figure, when the S pole of the magnet is closer to the linear Hall sensor, the output voltage of pin 3 OUT is smaller and closer to 0V, and when the N pole is closer to the linear Hall sensor, the output voltage of pin 3 OUT is larger and closer to 5V.

[0031] Furthermore, the oil level detection component 18 is provided with two linear Hall sensors, which are respectively arranged at the bottom and the top of the oil storage chamber 122, and the magnetic dipole 184 is located between the two Hall sensors 182. That is, the linear Hall sensor includes a first linear Hall sensor and a second linear Hall sensor, the first linear Hall sensor is arranged at the top of the oil storage chamber 122, the second linear Hall sensor is arranged at the bottom of the oil storage chamber 122, and the first linear Hall sensor and the second linear Hall sensor are arranged in reverse. That is, when the S pole of the magnetic dipole 184 is closer to the first linear Hall sensor, the smaller the output analog voltage value is, and when the S pole of the magnetic dipole 184 is farther from the first linear Hall sensor, the larger the output analog voltage value is; when the S pole of the magnetic dipole 184 is farther from the second linear Hall sensor, the smaller the output analog voltage value is, and when the S pole of the magnetic dipole 184 is closer to the second linear Hall sensor, the larger the output analog voltage value is.

[0032] The magnetic dipole 184 floats up and down with the liquid level. The height from the bottom to the top of the entire oil storage chamber 122 is the floating range of the magnetic dipole 184, which corresponds to the total liquid level of the tobacco oil in the oil storage chamber 122. When the magnetic dipole 184 floats to a certain liquid level, the output voltage of the OUT pin can be detected by two Hall sensors 182 according to the above theory, and then the amount of tobacco oil in the oil storage chamber 122 can be determined by comparing the voltage-oil volume scale corresponding table of the oil storage chamber 122. Of course, the amount of tobacco oil in the oil storage chamber 122 can be measured by one Hall sensor 182, and the use of two Hall sensors 182 to collect data for detection can make the measurement result more accurate and precise. Please refer to Table 1, which is a correspondence table between the oil storage volume and the output voltage when VDD is 4V. The S pole of the magnetic dipole faces the first linear Hall sensor, and the N pole of the magnetic dipole faces the second linear Hall sensor. The magnetic dipole is tested from approaching the first linear Hall sensor to approaching the second linear Hall sensor. The entire range is 33.02mm. There is an approximate linear relationship between the distance and the output voltage, and the spacing can be deduced by following the output voltage.

[0033] Table 1:

[0034]

[0035] See also Figure 2In this embodiment, a limiter 126 is provided in the oil storage chamber 122, and the limiter 126 limits the magnetic dipole 184 to float only in the direction of the liquid level in the oil storage chamber 122. The limiter 126 can limit the direction and movement trajectory of the magnetic dipole 184, and prevent the magnetic dipole 184 from rolling or drifting when floating with the liquid level, because the rolling makes the measurement result inaccurate after the N pole and S pole of the magnetic dipole 184 are swapped, or the distance between the magnetic dipole 184 and the Hall sensor 182 changes after drifting, making the measurement result inaccurate; therefore, the limiter 126 can make the magnetic dipole 184 move along the preset movement trajectory, thereby improving the accuracy and reliability of the result.

[0036] Preferably, the limiting member 126 is provided with a limiting groove extending from the bottom of the oil storage cavity 122 to the top of the oil storage cavity 122, and the magnetic dipole 184 is partially embedded in the limiting groove, and the magnetic dipole 184 moves in the limiting groove. The distance between the limiting groove and the inner wall of the oil storage cavity 122 is slightly larger than the width of the magnetic dipole 184, so that the magnetic dipole 184 can float up and down with the liquid surface but will not roll over; the width of the limiting groove is slightly larger than the thickness of the magnetic dipole 184, so that part of the magnetic dipole 184 can be accommodated without affecting the floating of the magnetic dipole 184 on the liquid surface, and also prevent the magnetic dipole 184 from rolling over. Of course, in other embodiments, the limiting member 126 can also be other forms of limiting, such as a limiting frame, a limiting frame, a limiting rod, etc.

[0037] See also Figure 1 An electronic atomization device includes a battery host 20 and the above-mentioned smoke oil level detection atomizer 10, and the battery host 20 and the smoke oil level detection atomizer 10 are adapted. The specific structure of the smoke oil level detection atomizer 10 refers to the above-mentioned embodiment. Since the electronic atomization device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0038] In this embodiment, the battery host 20 is provided with a main control board 22, the Hall sensor 182 is electrically connected to the main control board 22, and the three pins of the Hall sensor 182 are respectively connected to the positive pole of the power supply, the negative pole of the power supply and the output voltage, and the main control board 22 is provided with a program corresponding to the output voltage and the amount of smoke oil, and the amount of smoke oil can be determined according to the output voltage. The connection between the Hall sensor 182 and the main control board 22 does not affect other circuits, and can achieve separate detection without affecting other performances of the electronic atomization device.

[0039] In this embodiment, the battery host 20 is provided with a prompt light, which displays different colors to feedback the amount of oil in the oil storage chamber 122. The color displayed by the prompt light can be used to remind the user of the amount of oil, and timely remind the user when the oil is insufficient, so as to avoid the atomizer assembly 16 from burning dry, which may affect the service life and the smoking taste. Of course, in other embodiments, the way to feedback the amount of oil can also be voice prompt, vibration prompt or other methods.

[0040] In this embodiment, the battery host 20 is provided with a display screen, which displays the amount of tobacco oil in the oil storage chamber 122. The display screen displays the amount of tobacco oil clearly, and the display screen makes the electronic atomization device more technological; of course, the display screen can also display time, temperature, weather, voltage, and even human vital signs data according to needs and the design of the main control board 22.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A smoke oil level detection atomizer, comprising a shell, a base and an atomizer assembly, wherein the shell comprises a nozzle end and an open end, the base is plugged into the open end of the shell, and an oil storage chamber and an atomizer chamber are formed inside the shell, the oil storage chamber is connected to the atomizer via an oil guide hole, the atomizer assembly is arranged in the atomizer chamber, and the atomizer assembly guides oil to the oil storage chamber via the oil guide hole, characterized in that: It also includes an oil quantity detection component, which includes a Hall sensor and a magnetic dipole. The magnetic dipole is arranged in the oil storage cavity, and the magnetic dipole floats up and down with the height of the tobacco oil level in the oil storage cavity. The Hall sensor is arranged outside the oil storage cavity, and the Hall sensor outputs an analog voltage signal according to the magnetic field strength generated by the magnetic dipole to determine the amount of tobacco oil in the oil storage cavity.

2. The smoke oil level detection atomizer according to claim 1, characterized in that: The Hall sensor is a linear Hall sensor, the magnetic dipole is a bar magnet including an N pole and an S pole, and the N pole and the S pole are respectively located below and above the liquid level of the oil storage chamber, and the linear Hall sensor is directly opposite to the magnetic dipole.

3. The smoke oil level detection atomizer according to claim 2, characterized in that: The oil level detection component is provided with two linear Hall sensors, which are respectively arranged at the bottom and the top of the oil storage cavity, and the magnetic dipole is located between the two Hall sensors.

4. The smoke oil level detection atomizer according to claim 3, characterized in that: A limit piece is arranged in the oil storage cavity, and the limit piece restricts the magnetic dipole to float only in the direction of the liquid level height in the oil storage cavity.

5. The smoke oil level detection atomizer according to claim 4, characterized in that: The limiting member is provided with a limiting groove extending from the bottom of the oil storage cavity to the top of the oil storage cavity, the magnetic dipole is partially embedded in the limiting groove, and the magnetic dipole moves in the limiting groove.

6. An electronic atomization device, characterized in that: It comprises a battery host and the atomizer for detecting the amount of cigarette oil in any one of claims 1 to 5, wherein the battery host and the atomizer for detecting the amount of cigarette oil in are adapted to each other.

7. The electronic atomization device according to claim 6, characterized in that: The battery host is provided with a main control board, the Hall sensor is electrically connected to the main control board, and the three pins of the Hall sensor are respectively connected to the positive pole of the power supply, the negative pole of the power supply and the output voltage. The main control board is provided with a program corresponding to the output voltage and the amount of smoke oil, and the amount of smoke oil can be judged according to the output voltage.

8. The electronic atomization device according to claim 7, characterized in that: The battery host is provided with a prompt light, and the prompt light provides feedback on the amount of tobacco oil in the oil storage chamber by displaying different colors.

9. The electronic atomization device according to claim 7, characterized in that: The battery host is provided with a display screen, and the display screen displays the amount of tobacco oil stored in the oil storage chamber.

Images