WO2020146982A1

WO2020146982A1 - Power supply device having temperature control function and electronic cigarette

Info

Publication number: WO2020146982A1
Application number: PCT/CN2019/071657
Authority: WO
Inventors: 黄惠华; 朱伟; 郭美玲; 周波; 张鹏飞
Original assignee: 昂纳自动化技术（深圳）有限公司
Priority date: 2019-01-14
Filing date: 2019-01-14
Publication date: 2020-07-23
Also published as: US20220015452A1; EP3892138A4; EP3892138B1; ES2966767T3; EP3892138A1

Abstract

Disclosed are a power supply device having a temperature control function and an electronic cigarette. The power supply device comprises a shell (10), a battery (20) arranged inside the shell, an electric connection assembly (30) arranged on a first end of the shell, a temperature control plate (40) and an airflow sensor (50) arranged inside the shell, and a lamp cap (60) arranged on a second end of the shell, wherein the lamp cap (60) is provided with an airflow inlet (101) in communication with the interior of the shell; the electric connection assembly (30) and the airflow sensor (50) are both electrically connected to the temperature control plate (40); and the temperature control plate (40) is electrically connected to the battery (20). The power supply device having the temperature control function has the temperature control function and avoids phenomena such as the dry heating of an electronic cigarette atomizer; and since the power supply device uses less structural parts, the cost is reduced and assembly is simple, and compared with a power supply device in the prior art, the volume thereof is reduced, such that carrying is facilitated.

Description

Power supply device with temperature control and electronic cigarette

Technical field

The invention relates to the technical field of electronic cigarettes, in particular to a power supply device with temperature control and an electronic cigarette.

Background technique

The existing electronic cigarette includes a power supply device, an atomizer and a cartridge. The atomizer is powered by the power supply device, which can turn the liquid in the cartridge into smoke, so that the user has a similar The feeling of smoking.

During the use of electronic cigarettes, the battery power will become lower and lower, which affects the atomization temperature of the atomizer, which in turn affects the taste of the smoke and the smoking experience. Electronic cigarettes without temperature control function, when there is no smoke liquid or when the smoke liquid is insufficient, the atomizer is prone to dry burning, causing harmful gases and burnt substances to be inhaled into the human body and endangering human health.

At present, the existing temperature-controlled electronic cigarette adopts a box-shaped power supply device, which is controlled by a key switch, has many structural parts, and has a complicated structure, which is difficult to assemble and high in cost. In addition, the product is bulky and inconvenient to carry.

technical problem

The technical problem to be solved by the present invention is to provide a temperature-controlled power supply device with a simple structure and reduced volume and an electronic cigarette with the power supply device.

Technical solution

The technical solution adopted by the present invention to solve its technical problems is to provide a temperature-controlled power supply device for powering the atomizer of an electronic cigarette. The power supply device includes a housing, a battery arranged in the housing, and The electrical connection assembly on the first end of the housing, the temperature control board and the airflow sensor arranged in the housing, and the lamp cap arranged on the second end of the housing; the electrical connection assembly and the airflow The sensors are all electrically connected with the temperature control board, and the temperature control board is electrically connected with the battery.

Preferably, after the airflow sensor is activated, the temperature control board detects the initial resistance value of the atomizer at room temperature through the electrical connection component, and obtains the target resistance value of the atomizer at a specific temperature according to the initial resistance value, and then Supply power to the atomizer through the electrical connection component, and obtain the actual resistance value of the atomizer during the working process through the electrical connection component;

After the airflow sensor is turned off, the temperature control board detects the voltage or current of the atomizer through the electrical connection component, and stops the detection when the actual resistance value of the atomizer is restored to the initial resistance value.

Preferably, an airflow inlet is provided on the lamp cap, the electrical connection assembly or the housing, and an airflow outlet is provided on the electrical connection assembly, and the airflow inlet and the airflow outlet are connected to form an airflow channel.

Preferably, the electrical connection assembly includes a first electrical connection piece, a second electrical connection piece, and an insulating piece; the first electrical connection piece is inserted into the first end of the housing and is connected to the temperature control board. The negative terminal is electrically connected; the second electrical connection piece penetrates the first electrical connection piece and is electrically connected to the output end of the temperature control board; the insulating piece is arranged on the first electrical connection piece And the second electrical connection.

Preferably, one end of the first electrical connector is fitted into the first end of the housing, and the other end protrudes from the housing; the other end of the first electrical connector is provided with Thread, snap or magnetic parts.

Preferably, a first insulating sheet is provided between the electrical connection assembly and the battery to isolate the two.

Preferably, the temperature control board is provided with a temperature coefficient detection module, which is used to detect the actual resistance value and initial resistance value of the atomizer within a preset time, and calculate the heating components in the atomizer according to the actual resistance value and the initial value. The temperature coefficient is used to obtain the target resistance value of the atomizer at a specific temperature.

Preferably, the airflow sensor is accommodated and positioned on the lamp cap;

One end of the temperature control board is inserted into the lamp cap, and a second insulating sheet is arranged between the other end of the temperature control board and the battery.

Preferably, the power supply device further includes a bracket arranged in the casing and located between the battery and the temperature control board;

The airflow sensor is accommodated and positioned on the bracket; one end of the temperature control board is inserted into the bracket, and the other end faces the lamp cap.

The present invention also provides an electronic cigarette, including the power supply device described in any one of the above.

Beneficial effect

The power supply device with temperature control of the present invention has a temperature control function, avoids the phenomenon of dry burning of the electronic cigarette atomizer, has fewer structural parts, lowers costs, and is easy to assemble. Compared with the prior art power supply device, the volume is reduced and more Conducive to carry.

BRIEF DESCRIPTION

The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the accompanying drawings:

1 is a schematic cross-sectional structure diagram of a power supply device according to a first embodiment of the present invention;

2 is a schematic diagram of an exploded structure of the power supply device of the first embodiment of the present invention;

3 is a schematic cross-sectional structure diagram of a power supply device according to a second embodiment of the present invention;

4 is a schematic cross-sectional structure diagram of a power supply device according to a third embodiment of the present invention;

5 is a schematic cross-sectional structure diagram of a power supply device according to a fourth embodiment of the present invention;

6 is a schematic diagram of an exploded structure of a power supply device according to a fourth embodiment of the present invention;

FIG. 7 is a schematic cross-sectional structure diagram of a power supply device according to a fifth embodiment of the present invention.

Embodiments of the invention

In order to have a clearer understanding of the technical features, objectives and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in Figures 1 and 2, the power supply device with temperature control in the first embodiment of the present invention supplies power to the atomizer of an electronic cigarette. The power supply device may include a housing 10, a battery 20, an electrical connection assembly 30, and a temperature control. The board 40, the airflow sensor 50, and the lamp cap 60.

The housing 10 has a cylindrical structure and includes opposite first and second ends. The battery 20 is arranged in the housing 10; the electrical connection assembly 30 is arranged on the first end of the housing 10 for electrical connection with the atomizer of the electronic cigarette; the temperature control board 40 and the airflow sensor 50 are both arranged in the housing 10 Inside; the lamp cap 60 is provided on the second end of the housing 10, closing the second end.

Wherein, the electrical connection assembly 30 and the air flow sensor 50 are both electrically connected to the temperature control board 40, and the temperature control board 40 is electrically connected to the battery 20. The airflow sensor 50 serves as a switch. After the airflow sensor 50 is activated, the temperature control board 40 detects the initial resistance value of the atomizer at room temperature through the electrical connection component 30, and obtains the target resistance value of the atomizer at a specific temperature according to the initial resistance value, and then the electrical connection component 30 provides The atomizer is powered, and the actual resistance value of the atomizer during operation is obtained (detected/feedback) through the electrical connection component 30. After the airflow sensor 50 is turned off, the power supply to the atomizer is stopped, the temperature control board 40 detects the voltage or current of the atomizer through the electrical connection assembly 30, and stops the detection when the actual resistance value of the atomizer is restored to the initial resistance value. The power supply device goes to sleep (no output, no detection).

The battery 20 is preferably a high-rate, small-sized battery.

The lamp cap 60 or the housing 10 is provided with an air inlet 101 communicating with the inside of the housing 10, and the electrical connection assembly 30 is provided with an air outlet communicating with the inside of the housing 10, and the air inlet 101 and the air outlet 102 are connected to form an air channel. Specifically, in the casing 10, a gap is left between the battery 20 and the inner wall of the casing 10, and between the temperature control plate 40 and the inner wall of the casing 10, and the airflow inlet 101 and the airflow outlet 102 are connected through the gap.

The electrical connection assembly 30 is located on one side of the battery 20 and is installed on the first end of the casing 10. The electrical connection assembly 30 may include a first electrical connection member 31, a second electrical connection member 32 and an insulating member 33. The first electrical connector 31 is inserted into the first end of the housing 10 and is electrically connected to the negative terminal of the temperature control board 40; the second electrical connector 32 is inserted through the first electrical connector 31 and is connected to the temperature control board. The output end of 40 is electrically connected; the insulating member 33 is arranged between the first electrical connection piece 31 and the second electrical connection piece 32 to isolate the two.

The first electrical connection member 31 is in a columnar structure as a whole, and a central channel is formed to penetrate the whole axially. One end of the first electrical connector 31 can be fitted in the first end of the housing 10 by interference, leaving a certain distance between the battery 20 and the battery 20 to avoid short-circuiting between the two contacts; the first electrical connector 31 The other end protrudes from the housing 10. The outer peripheral side of the other end of the first electrical connection member 31 is provided with a thread, a buckle or a magnetic attraction member, so that it can be connected to the atomizer by means of a thread, a buckle or a magnetic attraction. The second electrical connection member 32 also has a columnar structure and passes through the central channel of the first electrical connection member 31. The insulating member 33 is sleeved on the outer periphery of the second electrical connection member 32 in a pipe sleeve structure and is located in the central channel of the first electrical connection member 31 to isolate the two.

In this embodiment, the airflow outlet 102 is disposed on the second electrical connector 32 and penetrates the second electrical connector 32 in the axial direction.

The temperature control board 40 (temperature control PCBA board) is located on the other side of the battery 20 relative to the electrical connection assembly 30. The temperature control board 40 is equipped with a temperature coefficient detection module for detecting the actual resistance value and initial resistance value of the atomizer within a preset time, and converting the temperature coefficient of the heating components in the atomizer according to the actual resistance value and the initial value. The temperature coefficient is used to obtain the target resistance value of the atomizer at a specific temperature.

Corresponding to the temperature control plate 40, the heating components in the atomizer are made of materials with positive temperature coefficient or negative temperature coefficient, such as pure titanium, pure nickel, stainless steel, etc., when the temperature control plate 40 detects the heating in the atomizer When the resistance value of the component does not change from the initial value within the preset time, it is determined that the material of the heating component does not belong to the temperature control material, and the power supply device stops supplying power to the atomizer.

The airflow sensor 50 is electrically connected to the temperature control board 40, and can feed back a voltage signal to the temperature control board 40 according to the negative pressure value during the smoking process of the user. The temperature control board 40 adjusts the supply to the atomizer according to the voltage signal and the measured resistance value. The magnitude of the change in output power. When the smoking rate of the user slows down, the negative pressure value is small, and the measured resistance value tends to exceed the target value. Therefore, the output power of the power supply device is reduced to prevent excessive temperature or excessive smoke from choking the user; The user smokes faster (increased air flow), the negative pressure value is larger, the measured resistance value tends to be lower than the target value, and the output power of the power supply device rises significantly to compensate for the heat taken away from the heating parts of the atomizer due to the airflow. Ensure that the temperature is accurate, and the amount of smoke per unit gas volume is consistent, and the taste is consistent.

The power supply device of this embodiment further includes a bracket 70. The bracket 70 is arranged in the casing 10 and is located between the battery 20 and the temperature control board 40. The outer peripheral side of the bracket 70 can be provided with a concave-convex structure or a snap fit tightly with the inner wall of the casing 10. One end of the temperature control board 40 is inserted into the bracket 70, and the other end faces the lamp cap 60 and can be inserted into the lamp cap 60 as required, so that the temperature control board 40 is fixed in the housing 10. The airflow sensor 50 is accommodated and positioned on the bracket 70, and specifically may be accommodated on the side of the bracket 70 facing the temperature control board 40. The bracket 70 is made of insulating material. It not only functions to fix the temperature control board 40 and the airflow sensor 50, but also functions to isolate the temperature control board 40 and the battery 20, effectively preventing the temperature control board 40 from touching when it is shaken or dropped. The end of the battery 20 is short-circuited.

The bracket 70 may have a cylindrical structure, one end is provided with at least one protrusion abutting the end of the battery 20, and the other end is extended with a side plate, and the side plate is provided with a slot for inserting one end of the temperature control board 40.

In addition, the temperature control board 40 and/or the air flow sensor 50 may be provided with LED lights for displaying the working status of the power supply device and/or the power of the battery 20; the light of the LED lights is transmitted through the lamp cap 60. For example, when the power of the battery 20 is too low, the LED light flashes and the power supply device stops supplying power to the atomizer; when the battery power is remaining 20%, the color of the LED light changes to prompt the user that the power supply device is about to stop working. When the actual resistance value of the atomizer does not change from the initial resistance value within the preset time, the power supply device determines that the heating component in the atomizer is not a temperature control material, the LED light flashes, and the power supply device stops supplying power to the atomizer.

As shown in FIG. 3, the power supply device with temperature control in the second embodiment of the present invention supplies power to the atomizer of the electronic cigarette. The power supply device may include a housing 10, a battery 20, an electrical connection assembly 30, and a temperature control board 40. , The airflow sensor 50, the lamp cap 60 and the bracket 70.

The settings of the housing 10, the battery 20, the electrical connection assembly 30, the temperature control board 40, the airflow sensor 50, the lamp cap 60, and the bracket 70 can refer to the related descriptions in the first embodiment above, and will not be repeated here.

The difference from the above-mentioned first embodiment is that a first insulating sheet 81 is provided between the electrical connection assembly 30 and the battery 20 to isolate the two to prevent short circuit or open circuit due to shaking during transportation.

Specifically, in this embodiment, the first insulating sheet 81 is provided between the first electrical connector 31 and the end of the battery 20.

In addition, the side plate for inserting the temperature control board 40 on the bracket 70 can be extended to increase the insertion area of the temperature control board 40 and make the fixing of the temperature control board 40 in the housing 10 more stable.

As shown in FIG. 4, the power supply device with temperature control of the third embodiment of the present invention supplies power to the atomizer of the electronic cigarette. The power supply device may include a housing 10, a battery 20, an electrical connection assembly 30, and a temperature control board 40. , The airflow sensor 50, the lamp cap 60 and the bracket 70.

A first insulating sheet 81 can be provided between the electrical connection assembly 30 and the battery 20 as required to isolate the two to prevent short circuit or open circuit due to shaking or the like during transportation.

The difference from the above-mentioned first embodiment is that the airflow inlet 101 is provided on the first electrical connection member 31 of the electrical connection assembly 30 and penetrates from the side of the first electrical connection member 31 to the central channel thereof.

Specifically, the air inlet 101 is provided on one end of the first electrical connector 31 protruding from the housing 10, and an end of the second electrical connector 32 away from the housing 10 is provided with a vent groove 103, which communicates with the air outlet 102 and Airflow inlet 101.

As shown in Figures 5 and 6, the power supply device with temperature control of the fourth embodiment of the present invention supplies power to the atomizer of an electronic cigarette. The power supply device may include a housing 10, a battery 20, an electrical connection assembly 30, and a temperature control. The board 40, the airflow sensor 50, and the lamp cap 60.

Wherein, the electrical connection assembly 30 and the air flow sensor 50 are both electrically connected to the temperature control board 40, and the temperature control board 40 is electrically connected to the battery 20. After the airflow sensor 50 is activated, the temperature control board 40 detects the initial resistance value of the atomizer at room temperature through the electrical connection component 30, and obtains the target resistance value of the atomizer at a specific temperature according to the initial resistance value, and then the electrical connection component 30 provides The atomizer is powered, and the actual resistance value of the atomizer during operation is obtained (detected/feedback) through the electrical connection component 30. After the airflow sensor 50 is turned off, the power supply to the atomizer is stopped, the temperature control board 40 detects the voltage or current of the atomizer through the electrical connection assembly 30, and stops the detection when the actual resistance value of the atomizer is restored to the initial resistance value. The power supply device goes to sleep (no output, no detection).

The battery 20 is preferably a high-rate, small-sized battery.

Different from the above-mentioned first embodiment, in this embodiment, one end of the temperature control board 40 faces the battery 20, and the other end is inserted into the lamp cap 60 to be fixed in the housing 10; the airflow sensor 50 is accommodated and positioned in the lamp On the cap 60, the lamp cap 60 not only serves as a cap cover, but also serves as a bracket to fix the temperature control board 40 and the airflow sensor 50.

The lamp cap 60 is provided with a groove on the side facing the battery 20 to accommodate the airflow sensor 50.

In order to prevent the temperature control board 40 from contacting the end of the battery 20 from short-circuiting during vibration or falling, a second insulating sheet 82 may be provided between the temperature control board 40 and the battery 20. The first insulating sheet 81 can also be provided between the electrical connection assembly 30 and the battery 20 with reference to the second embodiment shown in FIG. 3.

In addition, as in the first embodiment described above, the temperature control board 40 and/or the airflow sensor 50 may be provided with LED lights to display the working status of the power supply device and/or the power level of the battery 20; the light of the LED lights passes through the lamp cap 60 Reveal.

As shown in FIG. 7, the power supply device with temperature control of the fifth embodiment of the present invention supplies power to the atomizer of the electronic cigarette. The power supply device may include a housing 10, a battery 20, an electrical connection assembly 30, and a temperature control board 40. , Airflow sensor 50 and lamp cap 60.

The arrangement of the housing 10, the battery 20, the electrical connection assembly 30, the temperature control board 40, the airflow sensor 50, the lamp cap 60, the second insulating sheet 82, etc. refer to the fourth embodiment described above, and will not be repeated here.

The difference between this embodiment and the above-mentioned fourth embodiment is that the airflow sensor 50 and the temperature control board 40 are connected to form an integrated body, which further reduces the assembly of structural parts.

Specifically, the airflow sensor 50 can be connected to one side of the temperature control board 40 by means of wave soldering, patching, etc., and this connection step is implemented when the temperature control board 40 is manufactured.

The electronic cigarette of the present invention includes the power supply device of any of the above embodiments, and also includes an atomizer connected to the power supply device.

1, when the electronic cigarette is used, after the airflow sensor 50 is activated, the temperature control board 40 detects the initial resistance value of the atomizer at room temperature through the electrical connection assembly 30, and obtains the target resistance of the atomizer at a specific temperature according to the initial resistance value. The electrical connection component 30 supplies power to the atomizer, and the electrical connection component 30 obtains (detects/feeds back) the actual resistance value of the atomizer during operation. After the airflow sensor 50 is turned off, the power supply device stops supplying power to the atomizer. The temperature control board 40 detects the voltage or current of the atomizer through the electrical connection assembly 30, and stops when the actual resistance value of the atomizer is restored to the initial resistance value. Detection, the power supply device enters sleep (no output, no detection).

The heating components in the atomizer are made of materials with positive or negative temperature coefficients, such as pure titanium, pure nickel, stainless steel, etc. When the temperature control board 40 detects the heating components in the atomizer within a preset time When the resistance value does not change from the initial value, it is determined that the material of the heating component does not belong to the temperature control material, and the power supply device stops supplying power to the atomizer.

The airflow sensor 50 can feed back a voltage signal to the temperature control board 40 according to the negative pressure value during the smoking process of the user, and the temperature control board 40 adjusts the variation range of the output power provided to the atomizer according to the voltage signal and the measured resistance value. When the smoking rate of the user slows down, the negative pressure value is small, and the measured resistance value tends to exceed the target value. Therefore, the output power of the power supply device is reduced to prevent excessive temperature or excessive smoke from choking the user; The user smokes faster (increased air flow), the negative pressure value is larger, the measured resistance value tends to be lower than the target value, and the output power of the power supply device rises significantly to compensate for the heat taken away from the heating parts of the atomizer due to the airflow. Ensure that the temperature is accurate, and the amount of smoke per unit gas volume is consistent, and the taste is consistent.

The above is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by the description and drawings of the present invention, or directly or indirectly used in other related technologies In the field, the same reason is included in the patent protection scope of the present invention.

Claims

A power supply device with temperature control, which supplies power to an atomizer of an electronic cigarette, is characterized in that the power supply device includes a housing, a battery arranged in the housing, and a battery arranged on the first end of the housing. Electrical connection assembly, temperature control board and airflow sensor arranged in the housing, and a lamp cap arranged on the second end of the housing; both the electrical connection assembly and the airflow sensor are electrically connected to the temperature control board , The temperature control board is electrically connected to the battery.
The power supply device according to claim 1, wherein after the airflow sensor is activated, the temperature control board detects the initial resistance value of the atomizer at room temperature through the electrical connection component, and obtains the fog according to the initial resistance value. The target resistance value at a specific temperature of the carburetor, and then supply power to the atomizer through the electrical connection component, and obtain the actual resistance value of the atomizer during operation through the electrical connection component;

After the airflow sensor is turned off, the temperature control board detects the voltage or current of the atomizer through the electrical connection component, and stops the detection when the actual resistance value of the atomizer is restored to the initial resistance value.
The power supply device of claim 1, wherein the lamp cap, the electrical connection assembly or the housing is provided with an airflow inlet, the electrical connection assembly is provided with an airflow outlet, the airflow inlet and the airflow The outlets are connected to form an air flow channel.
The power supply device according to claim 1, wherein the electrical connection assembly comprises a first electrical connection piece, a second electrical connection piece and an insulating piece; the first electrical connection piece is inserted in the housing The first end is electrically connected to the negative terminal of the temperature control board; the second electrical connection piece penetrates the first electrical connection piece and is electrically connected to the output end of the temperature control board; The insulating member is arranged between the first electrical connection member and the second electrical connection member.
The power supply device according to claim 4, wherein one end of the first electrical connector is fitted into the first end of the housing, and the other end protrudes from the housing; the first electrical connection The outer peripheral side of the other end of the piece is provided with a thread, a buckle or a magnetic attraction piece.
The power supply device according to claim 4, wherein a first insulating sheet is provided between the electrical connection assembly and the battery to isolate the two.
The power supply device according to claim 1, wherein the temperature control board is provided with a temperature coefficient detection module for detecting the actual resistance value and the initial resistance value of the atomizer within a preset time, and according to the actual resistance value and The initial value is converted into the temperature coefficient of the heating components in the atomizer, and then the target resistance value at a specific temperature of the atomizer is obtained through the temperature coefficient.
The power supply device according to any one of claims 1-7, wherein the airflow sensor is accommodated and positioned on the lamp cap;

One end of the temperature control board is inserted into the lamp cap, and a second insulating sheet is arranged between the other end of the temperature control board and the battery.
The power supply device according to any one of claims 1-7, wherein the power supply device further comprises a bracket arranged in the casing and located between the battery and the temperature control board;

The airflow sensor is accommodated and positioned on the bracket; one end of the temperature control board is inserted into the bracket, and the other end faces the lamp cap.
An electronic cigarette, characterized by comprising the power supply device according to any one of claims 1-9.