CN114868976A

CN114868976A - Dry burning prevention atomizer and atomization device

Info

Publication number: CN114868976A
Application number: CN202210579988.6A
Authority: CN
Inventors: 黄科; 魏春花; 聂革; 王灵权; 赵贯云; 赵波洋
Original assignee: Shenzhen Woody Vapes Technology Co Ltd
Current assignee: Shenzhen Woody Vapes Technology Co Ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-08-09

Abstract

An anti-dry burning atomizer and an atomization device relate to the technical field of atomization devices. The dry-heating prevention atomizer comprises: an atomizer body, the atomizer body includes: a housing; a liquid storage cavity for storing liquid matrix is arranged in the liquid storage cavity; the heating element is arranged in the shell and used for heating and atomizing the liquid matrix; the electrode column is arranged at the lower side in the shell and is used for being connected with the conductive elastic needle of the battery rod and then used as a power supply electrode to supply power to the heating body; the electrode column is provided with a variable resistance layer which can change with temperature and has a positive temperature coefficient. The atomizing device includes: a dry-fire prevention atomizer, and a battery rod; the battery pole includes: a battery and a circuit control board; the control circuit board includes: the device comprises a micro control chip and a resistance value detection unit. By adopting the technical scheme, the device has the advantages that the internal working temperature of the atomization device can be detected, and the material selection of the heating body is rich.

Description

Dry burning prevention atomizer and atomization device

Technical Field

The invention relates to the technical field of atomization devices, in particular to an anti-dry-burning atomizer and an atomization device.

Background

The atomizer is an atomizer powered by rechargeable lithium polymer battery, generates 'vapor' by heating liquid matrix in the oil tank for the user to inhale, and has appearance, smoke, taste and feeling similar to cigarette.

As people become more concerned about health, they become aware of the deleterious effects of tobacco on health. Because the liquid matrix does not contain tar, the harm of the vaporized liquid matrix to human bodies is reduced. As a result, atomizing devices are widely used and are gradually replacing tobacco cigarettes.

In order to prevent the atomization device from being burnt dry due to rapid temperature rise when the atomization device is lack of liquid matrix and prevent the heating element from being burnt slightly, slightly or even seriously, the atomization device needs to be arranged for preventing the atomization device from being burnt dry, namely, the working temperature in the atomization device needs to be detected. However, in the temperature control mode of the existing atomization device, the heating element directly participates in atomization heating as a detection material, the heating efficiency is limited by the material, and once the heating element made of different materials is replaced, the used heating element material needs to be manually distinguished, and the output mode of the battery is adjusted, which is very troublesome, and the heating efficiency of the atomization device is limited by the heating element material, so that improvement is urgently needed.

Disclosure of Invention

The invention aims to provide an anti-dry-heating atomizer and an atomization device aiming at the defects and shortcomings of the prior art, and the atomizer and the atomization device have the advantages that the internal working temperature of the atomization device can be detected, and the material selection of a heating body is rich.

In order to achieve the purpose, the invention adopts the technical scheme that: an anti-dry-fire atomizer comprising: an atomizer body, the atomizer body includes:

a housing; a liquid storage cavity for storing liquid matrix is arranged in the liquid storage cavity;

the heating element is arranged in the shell and used for heating and atomizing the liquid matrix; and

the electrode column is arranged at the lower side in the shell, one end of the electrode column is connected with the heating body, and the electrode column is used as a power supply electrode to supply power to the heating body after being connected with the conductive elastic needle of the battery rod;

the electrode column is provided with a variable resistance layer which can change with temperature and has a positive temperature coefficient.

The invention further provides that the variable resistance layer directly serves as the electrode column.

The invention further provides that the variable resistance layer is combined with the electrode column through a coating, a galvanized coating, a press rivet or a thread.

The present invention further provides that the variable resistance layer is made of a material having a temperature coefficient of resistance of: 0.1-2.

The variable resistance layer is further made of stainless steel, nickel-chromium alloy or titanium alloy.

The invention is further provided with a smoke suction port arranged at one end of the shell and an opening arranged at the other end;

the opening is provided with a base, and the base is provided with an air inlet channel for external air to enter;

the base with be provided with the air guide seat between the heat-generating body, the air guide seat with keep having certain distance between the heat-generating body and be used for forming the atomizing chamber that the aerosol releases.

The invention is further provided with oil absorption cotton arranged in the base.

The invention further provides that a sealing mechanism for sealing the liquid storage cavity and accommodating and keeping the heating body is arranged in the shell.

In order to achieve the purpose, the invention adopts another technical scheme that: an atomizing device comprising: the dry-heating prevention atomizer and the battery rod are arranged in the battery box;

the battery pole includes: a battery and a circuit control board;

the control circuit board includes: the device comprises a micro control chip and a resistance value detection unit;

the resistance value detection unit is electrically connected with the electrode column and used for detecting the resistance value of the electrode column and feeding back a resistance value signal to the micro control chip.

The invention further provides that the control circuit board further comprises: an output control unit; the output control unit is electrically connected with the micro control chip;

the micro control chip is provided with a dry burning set value or a normal working resistance change value,

when the micro control chip is provided with a dry burning set value, the micro control chip compares the resistance value signal with the dry burning set value, and when the resistance value signal exceeds the dry burning set value, the micro control chip cuts off the output of the output control unit so as to prevent the atomization device from generating dry burning due to overhigh temperature;

when the micro control chip is provided with a normal working resistance change value, the micro control chip compares the difference value between the resistance value signal and the initial resistance value of the electrode column with the normal working resistance change value, and when the difference value exceeds the normal working resistance change value, the micro control chip cuts off the output of the output control unit so as to prevent the atomization device from being over-heated to cause dry burning.

After the technical scheme is adopted, the invention has the beneficial effects that:

in the invention, the electrode column is connected with the heating body, and the electrode column is provided with the variable resistance layer with the resistance value capable of changing along with the temperature and the positive temperature coefficient, so that the internal working temperature of the atomization device can be measured only by detecting the resistance value or the resistance value change of the variable resistance layer during working, and the detection is easier compared with the direct detection of the internal working temperature. In addition, because the resistance value of the variable resistance layer is detected, the resistance value is irrelevant to the heating element, the heating elements with different materials can be selected, and the output mode of the battery does not need to be adjusted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a dry-fire proof atomizer;

FIG. 2 is an exploded view of the dry-fire atomizer;

FIG. 3 is a schematic view of the dry-fire prevention atomizer from another perspective;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a sectional view taken in the direction B-B in FIG. 3;

FIG. 6 is a sectional view of a heat-generating body and an electrode;

FIG. 7 is a cross-sectional view of the variable resistance layer directly as an electrode post;

FIG. 8 is a cross-sectional view of the variable resistance layer in combination with the electrode posts by way of clinching;

FIG. 9 is a cross-sectional view of the variable resistance layer in combination with the electrode shaft by means of a coating;

fig. 10 is a sectional view of the variable resistance layer combined with the electrode posts by means of a plating layer;

FIG. 11 is a cross-sectional view of the variable resistance layer being threadably engaged with the electrode post;

fig. 12 is a functional configuration diagram of the control circuit board.

Description of reference numerals: 1. an atomizer body; 11. a housing; 12. a heating element; 13. an electrode column; 131. a variable resistance layer; 14. a base; 15. a seal ring; 16. a gas guide seat; 17. oil absorbing cotton; 18. a sealing mechanism; 181. a silica gel sleeve; 182. an atomizing base; 183. sealing the silica gel; a. a smoking port; b. a flue gas transmission pipe; c. a liquid storage cavity; d. a first drain hole; e. a second drain hole; f. an atomizing chamber.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment as necessary without making a contribution thereto after reading the present specification, but all are protected by patent laws within the scope of the claims of the present invention.

The present embodiment relates to an anti-dry heating atomizer, as shown in fig. 1, including: an atomizer body 1.

Detailed structure of the atomizer body 1 reference is made to the structural exploded view of fig. 2, the sectional views of fig. 3 and 4, including: a case 11, a heating element 12, and an electrode column 13.

In the present embodiment in particular, the housing 11 is a hollow cylindrical structure, and the housing 11 has a proximal end and a distal end opposite to each other in the axial direction; wherein, according to the requirement of common use, the near end is configured as one end of the user for sucking the aerosol and is provided with a smoking port a, and the far end is used as one end which is assembled and connected with the battery rod and is provided with an opening. The open structure is used to mount necessary functional components to the inside of the housing 11. The opening is provided with a detachable base 14, and the base 14 is provided with an air inlet channel for external air to enter. A sealing ring 15 is further arranged in the base 14 and used for enhancing the sealing effect between the inside of the dry burning prevention atomizer and the outside.

A smoke transmission pipe b arranged along the axial direction is arranged in the shell 11, and a liquid storage cavity c for storing liquid matrix is formed in a space between the outer wall of the smoke transmission pipe b and the inner wall of the shell 11; the first end of the smoke transmission pipe b, which is opposite to the near end, is communicated with the smoke suction port a, and the second end, which is opposite to the far end, is connected with the heating element 12, so that aerosol generated by the liquid substrate atomized by the heating element 12 is transmitted to the smoke suction port a for smoking.

A heat generating body 12 is mounted in the housing 11 for heating and atomizing the liquid substrate. The heat-generating body 12 may have a generally, but not limited to, block-like structure in the present embodiment, and includes a liquid-absorbing surface and an atomizing surface which are opposed to each other in the axial direction of the case 11 according to the use.

The electrode pole 13 is installed at the far end inside the housing 11, one end of the pole is directly connected with the heating element 12, the other end is connected with the conductive elastic needle of the battery pole, and the pole is used as the electrode for supplying power to the heating element 12 after being connected with the conductive elastic needle.

The electrode column 13 is provided with a variable resistance layer 131 which is variable in resistance with temperature and has a positive temperature coefficient. That is, the electrode posts 13 are made of the variable resistance layer 131 and the conductive metal.

In the present embodiment, referring to fig. 6 and 7, the variable resistance layer 131 is taken as an example of the electrode posts 13 directly, and it can be considered that the variable resistance layer 131 is integrally formed with the electrode posts 13. Because the electrode column 13 is provided with the variable resistance layer 131 which has the resistance value which can change along with the temperature and has the positive temperature coefficient, the internal working temperature of the atomization device can be measured only by detecting the resistance value or the resistance value change of the variable resistance layer 131 during working, and the detection is easier compared with the direct detection of the internal working temperature. In addition, since the resistance value of the variable resistance layer 131 is the object of detection, the heating element 12 of different material can be selected regardless of the heating element 12, and the output mode of the battery does not need to be adjusted.

In other embodiments, referring to fig. 8-11, the variable resistance layer 131 may be bonded to the electrode posts 13 by means of rivets, coatings, plating, or threads.

Further, the variable resistance layer 131 is made of a material having a temperature coefficient of resistance of: 0.1-2. Preferably, in this embodiment, the temperature coefficient of resistance of the material used for the variable resistance layer 131 is 1.

Further, the variable resistance layer 131 is made of stainless steel, nichrome or titanium alloy.

In order to make the release and transmission of the aerosol smoother, referring to fig. 2, an air guide seat 16 is provided between the base 14 and the heating element 12. A certain distance is kept between the air guide seat 16 and the heating body 12 for forming an atomizing cavity f for aerosol release. The air guide base 16 is provided with a hole for the electrode column 13 to be installed and to pass through. In the present embodiment, the air guide base 16 is made of silicon gel.

In order to absorb and filter excess smoke and condensate, referring to fig. 2, a suction cotton 17 is provided in the base 14.

In order to facilitate the fixing of the heating element 12 and the sealing of the reservoir c, referring to fig. 2 to 4, a sealing mechanism 18 is further provided in the housing 11. In the present embodiment, the sealing mechanism 18 includes a silicone sleeve 181, a rigid atomizing base 182, and a sealing silicone 183, and seals the port of the reservoir chamber c and also fixedly holds the heating element 12 inside. In the specific structure and shape, the silica gel sleeve 181 is substantially annular, is hollow inside and is used for accommodating the heating element 12, and is sleeved outside the heating element 12 in a flexible tight-fitting manner.

The atomizing base 182 holds the heating element 12 sleeved with the silica gel sleeve 181; the atomizing base 182 is provided with a first liquid guide hole d for delivering the liquid base material to the liquid-absorbing surface.

Sealing silica gel 183 sets up in the tip of stock solution chamber c towards the distal end, and the cross section adaptation of profile in its appearance and the shell 11 to realize sealed to stock solution chamber c, prevent that liquid matrix from spilling from stock solution chamber c. Further, in order to prevent the contraction deformation of the flexible sealing silicone rubber 183 from affecting the sealing tightness, the rigid atomizing base 182 is accommodated in the sealing silicone rubber 183 to support the sealing silicone rubber 183. The sealing silica gel 183 is provided with a second liquid guide hole e. The second liquid guiding hole e corresponds to the first liquid guiding hole d on the atomizing base 182, so that the liquid matrix in the liquid storage cavity c can flow to the liquid absorbing surface of the heating element 12 to be absorbed after passing through the second liquid guiding hole e and the first liquid guiding hole d.

The present embodiment also provides an atomizing device, including: the dry-heating prevention atomizer and the battery rod. And a conductive elastic needle for connecting and conducting with the electrode column 13 is arranged on the battery rod. The battery pole still includes: a battery and a circuit control board. Referring to fig. 12, the control circuit board includes: the device comprises a micro control chip and a resistance value detection unit. The resistance value detection unit is electrically connected with the electrode column 13 and used for detecting the resistance value of the electrode column and feeding back a resistance value signal to the micro control chip.

The control circuit board further includes: and an output control unit. The output control unit is electrically connected with the micro control chip.

In one embodiment, the micro-control chip is provided with a normal operating resistance change value. The micro control chip compares the difference value between the resistance value signal and the initial resistance value of the electrode column 13 with the change value of the normal working resistance, and when the difference value exceeds the change value of the normal working resistance, the micro control chip cuts off the output of the output control unit to prevent the atomization device from being burnt due to overhigh temperature.

The principle is as follows:

assuming an initial resistance value R0 across the electrode column 13,

normal operating resistance R1 (from multiple sets of test data),

abnormal operating resistance: r2-slightly burnt, burnt and seriously burnt (multiple sets of test data),

R0<R1<R2，

the resistance changes under normal working state, RX1 ═ R1-R0,

the resistance change under the abnormal working condition is that RX2 is R2-R0,

the micro control chip can detect the resistance change in the working state in real time, and when the change value is less than or equal to RX1, the battery judges that the battery is at the normal working temperature and continues to output;

if the variance is > RX1, and is within RX2, indicating that the operating temperature has exceeded the standard, the battery will immediately stop outputting.

In another embodiment, the micro control chip is provided with a dry fire set point. The micro control chip compares the resistance signal with the dry burning set value, and when the resistance signal exceeds the dry burning set value, the micro control chip cuts off the output of the output control unit to prevent the atomization device from generating dry burning due to overhigh temperature.

The working principle of the invention is roughly as follows: 1. because the electrode column 13 is provided with the variable resistance layer 131 with the resistance value which can change along with the temperature and has the positive temperature coefficient, the internal working temperature of the atomization device can be measured only by detecting the resistance value or the resistance value change of the variable resistance layer 131 during working, the electrode column is irrelevant to the heating element 12, the heating element 12 made of different materials can be selected, and the output mode of a battery does not need to be adjusted. 2. The temperature control mechanism is as follows: the heating body 12 transfers heat to the electrode column 13 to form resistance change, and when the resistance change value exceeds a set value, the micro control chip cuts off the output of the output control unit to prevent the atomization device from being over heated to generate dry burning.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered by the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An anti-dry-fire atomizer comprising: nebulizer body (1), characterized in that nebulizer body (1) comprises:

a housing (11); a liquid storage cavity (c) for storing liquid matrix is arranged in the liquid storage cavity;

a heating element (12) mounted in the housing (11) for heating and atomizing a liquid substrate; and

the electrode column (13) is arranged at the lower side in the shell (11), one end of the electrode column is connected with the heating body (12), and the electrode column is used as a power supply electrode to supply power to the heating body (12) after being connected with a conductive elastic needle of the battery pole;

the electrode column (13) is provided with a variable resistance layer (131) which can change with temperature and has a positive temperature coefficient.

2. The dry-fire proof atomizer according to claim 1, wherein said variable resistance layer (131) directly serves as said electrode shaft (13).

3. The dry-fire resistant atomizer according to claim 1, wherein said variable resistance layer (131) is bonded to the electrode post (13) by a coating, plating, clinching, or threading.

4. The atomizer according to any one of claims 1-3, wherein the variable resistance layer (131) is made of a material having a temperature coefficient of resistance of: 0.1-2.

5. The atomizer of any one of claims 1 to 3, wherein the variable resistance layer (131) is made of stainless steel, NiCr alloy or Ti alloy.

6. The dry-burning prevention atomizer according to claim 1, wherein one end of said housing (11) is provided with a smoking port (a) and the other end is provided with an opening;

the opening is provided with a base (14), and the base (14) is provided with an air inlet channel for external air to enter;

the base (14) with be provided with air guide seat (16) between heat-generating body (12), air guide seat (16) with keep having certain distance between heat-generating body (12) and be used for forming atomizing chamber (f) that the aerosol released.

7. The atomizer of claim 6, characterized in that an oil absorbent cotton (17) is arranged in the base (14).

8. The dry-heating preventing atomizer according to claim 1, wherein a sealing mechanism (18) for sealing said reservoir chamber (c) and accommodating and holding said heat-generating body (12) is provided in said case (11).

9. An atomizing device, comprising: the dry-fire resistant atomizer of any one of claims 1 to 8, and a battery rod;

the battery pole includes: a battery and a circuit control board;

the resistance value detection unit is electrically connected with the electrode column (13) and used for detecting the resistance value of the electrode column and feeding back a resistance value signal to the micro control chip.

10. The atomizing device of claim 9, wherein the control circuit board further comprises: an output control unit; the output control unit is electrically connected with the micro control chip;

when the micro control chip is provided with a normal working resistance change value, the micro control chip compares the difference value of the resistance value signal and the initial resistance value of the electrode column (13) with the normal working resistance change value, and when the difference value exceeds the normal working resistance change value, the micro control chip cuts off the output of the output control unit so as to prevent the atomization device from being burnt due to overhigh temperature.