CN209711546U - Electronic cigarette - Google Patents

Abstract

The utility model discloses a kind of electronic cigarettes, the electronic cigarette includes shell and is set to the intracorporal control element of the shell and atomizer, wherein, the control element includes control circuit board and the differential sensor that connect with the control circuit board, first pressure detection mouth and second pressure detection mouth are formed in the differential sensor, the first pressure detection mouth is connected to outside, and the second pressure detection mouth is connected to by sealed passage with the suction nozzle on the shell.The electronic cigarette of the utility model is intended to provide a kind of sensing smoking and acts more acurrate and more small and exquisite overall structure electronic cigarette.

Description

e-cigarette

technical field

The utility model relates to the field of smoking products, in particular to an electronic cigarette.

Background technique

Traditional tobacco can cause smokers to become addicted and cause lung and cardiovascular diseases. As people pay more and more attention to health, electronic cigarettes have gradually emerged as a substitute for traditional tobacco smoking. E-cigarettes are electronic products that imitate traditional cigarettes, consisting of batteries, chips, atomizers and peripheral accessories. When the e-cigarette works, it turns the special e-liquid into vapor through atomization for users to smoke. Compared with traditional tobacco, the atomized vapor contains less harmful substances such as tar, carbon monoxide, and nitric acid because it has not been burned. This feature can meet the user's expectations for health and environmental protection. In addition to being a substitute for traditional tobacco, in recent years, some manufacturers have diversified the types and flavors of e-cigarettes used, and made the appearance of e-cigarette devices fashionable, making it a fashion trend.

Among them, the sensing circuit is a key component of the electronic cigarette, and its function is to sense the user's smoking action. The traditional structure is to use microphone sensing, the microphone is electrically equivalent to a capacitor. When the user smokes, the capacitance of the microphone will change, and the capacitance change can be used to sense the action of the person smoking, but the accuracy of the microphone is not good. Good results often cause false sensing phenomenon in use. High-end electronic cigarettes are sensed using an absolute pressure sensor. The absolute pressure sensor is shown in FIG. A sensing channel is formed, and two absolute pressure sensors (absolute pressure sensor A and absolute pressure sensor B) are required in actual use: absolute pressure sensor A senses the ambient pressure, and absolute pressure sensor B senses the pressure of the human mouth. When smoking, the pressure of absolute pressure sensor B will change. By comparing the sensing results of A and B, it is judged whether there is a smoking action. As for the use of two absolute pressure sensors, it brings about an increase in cost and an increase in the overall size.

Utility model content

The main purpose of the present invention is to provide an electronic cigarette, which aims at providing an electronic cigarette with more accurate sensing of smoking action and smaller overall structure.

In order to achieve the above object, the utility model provides an electronic cigarette, which includes a casing, a control element and an atomizer arranged in the casing, wherein the control element includes a control circuit board and is connected to the A differential sensor connected to the control circuit board, a first pressure detection port and a second pressure detection port are formed on the differential sensor, the first pressure detection port communicates with the outside, and the second pressure detection port communicates with the The suction nozzle on the housing is connected.

Preferably, the first pressure detection port communicates with the air intake channel of the electronic cigarette.

Preferably, the electronic cigarette is provided with a pressure sensing channel, and the pressure sensing channel passes through the sensing hole provided on the housing to the first pressure detection port.

Preferably, said sealed passage is formed between said control element and the nebuliser.

Preferably, the sealed channel extends from the second pressure detection port to the flue of the nebulizer.

Preferably, the electronic cigarette further includes a microprocessor connected to the control circuit board, and the microprocessor is used to calculate parameters of smoking intensity and e-liquid consumption according to the pressure difference detected by the differential sensor.

Preferably, the electronic cigarette further includes Bluetooth connected to the control circuit board.

In the solution of the present application, since the control element includes a control circuit board and a differential sensor connected to the control circuit board, a first pressure detection port and a second pressure detection port are formed on the differential sensor, and the first pressure detection port and the second pressure detection port are formed on the differential sensor. The second pressure detection port communicates with the suction nozzle of the electronic cigarette through a sealed channel. When smoking, the pressure at the second pressure detection port becomes smaller and the first pressure detection port is at the ambient pressure. At this time, the state generates a positive differential signal to sense the user's smoking action. In addition, when the user blows air, the pressure of the second pressure detection port increases and the first pressure detection port is at ambient pressure. At this time, a negative differential signal is generated, so the positive and negative signals can also be used to judge the user's smoking and blowing actions. Compared with the absolute pressure sensor that requires two sensors, the differential sensor only needs one sensor, which is very competitive in terms of cost and space usage, making the electronic cigarette system lighter, thinner, shorter and smaller.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the mechanism shown in these drawings without creative work.

Fig. 1 is a schematic diagram of an absolute pressure sensor in the prior art;

Fig. 2 is a schematic structural diagram of an electronic cigarette according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of a differential sensor of an electronic cigarette according to an embodiment of the present invention.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Explanation of reference numbers:

label name label name 101 PCB board 102 ASIC integrated circuit 103 MEMS sensor 210 power supply 220 control element 230 atomizer 240 sealed channel

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions related to "first", "second" and so on in the present application are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

Please refer to the accompanying drawing 2, the utility model provides an electronic cigarette, the electronic cigarette includes a casing and a power supply 210, a control element 220 and an atomizer 230 arranged in the casing, wherein the control element 220 includes a control circuit board and a differential sensor connected to the control circuit board. The differential sensor is formed with a first pressure detection port and a second pressure detection port. The first pressure detection port communicates with the outside, and the second pressure detection port communicates with the electronic cigarette through a sealed channel 240. The suction nozzle is connected.

In the solution of the present application, since the control element 220 includes a control circuit board and a differential sensor connected to the control circuit board, a first pressure detection port and a second pressure detection port are formed on the differential sensor, and the first pressure detection port communicates with the outside. The second pressure detection port communicates with the suction nozzle of the electronic cigarette through a sealed channel 240 . When smoking, the pressure at the second pressure detection port becomes smaller and the first pressure detection port is at the ambient pressure. At this time, the state generates a positive differential signal to sense the user's smoking action. In addition, when the user blows air, the pressure of the second pressure detection port increases and the first pressure detection port is at ambient pressure. At this time, a negative differential signal is generated, so the positive and negative signals can also be used to judge the user's smoking and blowing actions. Compared with the absolute pressure sensor that requires two sensors, the differential sensor only needs one sensor, which is very competitive in terms of cost and space usage, making the electronic cigarette system lighter, thinner, shorter and smaller.

It should be noted that the structure of the electronic cigarette includes a power supply 210 , a control element 220 , and an atomizer 230 . When the differential sensor in the control element 220 senses the user's smoking action and feeds back to the control circuit board, the control circuit board starts the atomizer 230, and the power supply 210 provides enough energy to start the atomizer to evaporate the e-liquid. Wherein, please refer to the accompanying drawing 3, the differential sensor includes a PCB board 101, an ASIC integrated circuit 102 and a MEMS sensor 103 connected in sequence, two pressure detection ports are formed on the differential sensor, and the upper and lower pressures can be sensed by using one pressure sensor Variety.

As a possible implementation manner of the present invention, the first pressure detection port communicates with the air intake channel of the electronic cigarette. Since the first pressure detection port needs to communicate with the outside to detect the ambient pressure, the air intake channel of the electronic cigarette can be directly connected to the first pressure detection port, reducing the number of vent holes.

As another possible implementation of the present utility model, a pressure sensing channel (that is, the first pressure detection port is used to communicate with the outside world) is separately provided on the electronic cigarette, and the pressure sensing channel passes through the sensing hole provided on the housing. to the first pressure detection port. The independently set pressure sensing channel is completely unaffected by the user's smoking action, so the detected environmental pressure is more accurate.

Preferably, a sealed channel 240 is formed between the control element and the nebulizer 230 . The sealing passage 240 ensures airtightness between the second pressure detection port and the user's mouth, so that the user can accurately detect pressure changes when smoking. Further, as a specific structure of the present invention, the sealing channel 240 extends from the second pressure detection port to the flue of the atomizer 230 .

In addition, as a specific implementation of the present utility model, the electronic cigarette also includes a microprocessor connected to the control circuit board, and the microprocessor is used to calculate the parameters of smoking intensity and e-liquid consumption according to the pressure difference detected by the differential sensor. Due to the high precision of the differential sensor, the high precision data can be calculated to determine the strength of the user's smoking.

Specifically, a large pressure difference detected by the differential sensor indicates a strong smoking force and a correspondingly high e-liquid consumption; a large pressure difference detected by the differential sensor indicates a low smoking force and a corresponding low e-liquid consumption. The specific value of smoking intensity and the specific value of e-liquid consumption can be obtained by multiplying the pressure difference by a specific value determined by experiments.

Preferably, the electronic cigarette further includes Bluetooth connected to the control circuit board. Bluetooth is used to connect the user's mobile phone, and the relevant data of the electronic cigarette can be detected and set up and managed through the APP on the mobile phone.

The above are only preferred embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent mechanism or equivalent process conversion made by using the specification of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other related All technical fields are all included in the scope of patent protection of the utility model in the same way.

Claims (7)

1. An electronic cigarette, the electronic cigarette includes a casing, a control element and an atomizer arranged in the casing, wherein the control element includes a control circuit board and a circuit board connected to the control circuit board A differential sensor, the differential sensor is formed with a first pressure detection port and a second pressure detection port, the first pressure detection port communicates with the outside, and the second pressure detection port is connected to the The nozzle is connected. 2. The electronic cigarette according to claim 1, wherein the first pressure detection port communicates with the air intake channel of the electronic cigarette. 3. The electronic cigarette according to claim 1, wherein the electronic cigarette is provided with a pressure sensing channel, and the pressure sensing channel penetrates from the sensing hole provided on the housing to the first pressure sensing channel. detection port. 4. The electronic cigarette according to any one of claims 1 to 3, characterized in that the sealed channel is formed between the control element and the atomizer. 5 . The electronic cigarette according to claim 4 , wherein the sealed channel extends from the second pressure detection port to a flue of the atomizer. 6. The electronic cigarette according to any one of claims 1 to 3, characterized in that the electronic cigarette further comprises a microprocessor connected to the control circuit board, and the microprocessor is used to The detected pressure difference is used to calculate smoking intensity and e-liquid consumption parameters. 7. The electronic cigarette according to claim 6, further comprising Bluetooth connected to the control circuit board.