Electronic cigarette

Abstract

The utility model discloses an electronic cigarette. The electronic cigarette comprises a shell, an atomization assembly, a suction nozzle and an oil injection pipe. An oil storage cavity and an oil supply cavity are formed in the shell, and the oil supply cavity is located below the oil storage cavity. The atomization assembly is arranged in the oil storage cavity; the suction nozzle is arranged above the shell, a mist suction channel and an oil suction channel which are communicated with the outside are formed in the suction nozzle, and the mist suction channel is communicated with the atomization assembly; the oil injection pipe sequentially penetrates through the oil suction channel, the oil storage cavity and the oil supply cavity, the bottom end of the oil injection pipe is located at the cavity bottom of the oil supply cavity, the oil injection pipe is located on one side of the atomization assembly, and a plurality of oil injection holes are formed in the part, located in the oil storage cavity, of the oil injection pipe; the length of the oil injection pipe ranges from 5 cm to 20 cm, the inner diameter of the oil injection pipe ranges from 1.5 mm to 2.0 mm, and the diameter of the oil injection hole ranges from 0.5 mm to 1.0 mm. According to the electronic cigarette, oil injection is achieved through user smoking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization, in particular to an electronic cigarette. BACKGROUND

[0002] A large-capacity electronic cigarette generally comprises an oil supply cavity for supplying oil to an oil storage cavity. An atomization assembly adsorbs tobacco tar in the oil storage cavity, and then atomizes the tobacco tar by energy supplied by a power supply assembly. The aerosol flows out through a suction nozzle connected to the atomization cavity, for a user to smoke. In some electronic cigarettes, the oil supply cavity needs to be manually operated by the user to inject oil into the oil storage cavity, which is inconvenient. CONTENT

[0003] The main purpose of the present application is to provide an electronic cigarette to solve the technical problem that the oil supply cavity needs to be manually operated by the user to inject oil into the oil storage cavity, which is inconvenient.

[0004] To achieve the above purpose, the present application provides an electronic cigarette, which comprises:

[0005] a housing, an oil storage cavity and an oil supply cavity are formed inside the housing, and the oil supply cavity is located below the oil storage cavity;

[0006] an atomization assembly arranged in the oil storage cavity;

[0007] a suction nozzle arranged above the housing, an internal suction oil passage and an internal suction mist passage connected to the outside are formed in the suction nozzle, and the suction mist passage is connected to the atomization assembly; and

[0008] an oil injection pipe sequentially arranged in the suction oil passage, the oil storage cavity and the oil supply cavity, a bottom end of the oil injection pipe is located at a bottom of the oil supply cavity, the oil injection pipe is located on one side of the atomization assembly, and a plurality of oil injection holes are formed on a portion of the oil injection pipe located in the oil storage cavity;

[0009] wherein the length of the oil injection pipe is 3-20 cm, the inner diameter of the oil injection pipe is 1.5-2.0 mm, and the diameter of the oil injection hole is 0.5-1.0 mm.

[0010] Optionally, the suction oil passage is formed by extending downward from the top inner wall of the suction nozzle, an oil suction hole connected to the suction oil passage is formed in the top wall of the suction nozzle, and the diameter of the oil suction hole is 0.2-1.0 mm.

[0011] Optionally, the oil injection pipe comprises a bent pipe portion, the bent pipe portion has an extension length in the horizontal direction, and the bent pipe portion is located in the oil supply cavity, the oil storage cavity and / or the suction nozzle.

[0012] Optionally, the bent pipe portion is in a spiral shape, a first-end-to-end S shape, a first-end-to-end V shape or a first-end-to-end Z shape.

[0013] Optionally, the oil injection pipe comprises a main stem and a branch, the main stem is sequentially arranged in the oil suction channel, the oil storage cavity and the oil supply cavity, one end of the branch is connected with the main stem and is in communication, and the other end of the branch is open and located in the oil storage cavity.

[0014] Optionally, the inner wall of the oil injection pipe is uneven.

[0015] Optionally, the length of the oil injection hole in the axial direction of the oil injection pipe is greater than the length of the oil injection hole in the circumferential direction of the oil injection pipe.

[0016] Optionally, the distance between the top end of the mist suction channel and the top end of the oil suction channel is 1-10 mm.

[0017] Optionally, the electronic cigarette comprises a buffer cotton, the buffer cotton is arranged in the top end of the oil injection pipe, and the buffer cotton is used for buffering the flow of gas.

[0018] Optionally, the electronic cigarette comprises an oil storage cotton, the oil storage cotton is arranged in the oil storage cavity and is sleeved on the atomization assembly, the oil injection pipe is arranged in the oil storage cotton, and the oil storage cotton covers the plurality of oil injection holes.

[0019] In the electronic cigarette, when a user smokes, a negative pressure is formed in the oil suction channel, the tobacco oil in the oil supply cavity flows into the oil injection pipe, and then flows into the oil storage cavity through the oil injection holes arranged on the oil injection pipe, so that the electronic cigarette realizes oil injection through the smoking of the user, and the user does not need to manually supply oil to the oil storage cavity, and the experience is good. In addition, the oil injection amount of the oil storage cavity is positively correlated with the suction force and frequency of the user, and the oil consumption amount of the tobacco oil in the oil storage cavity is also positively correlated with the frequency of the user (and is also positively correlated with the suction force in some cases), so that the electronic cigarette can also automatically adjust the content of the tobacco oil in the oil storage cavity, so as to stabilize the content of the tobacco oil in the oil storage cavity, and the atomization effect of the atomization assembly is good and is not easy to burn. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative labor.

[0021] Figure 1 is a cross-sectional view of an embodiment of the electronic cigarette of the present application;

[0022] Figure 2 is a cross-sectional view of another embodiment of the electronic cigarette of the present application.

[0023] Explanation of reference signs:

[0024] Reference Name Reference Name 10 Electronic cigarette 100 Housing 110 Oil storage cavity 120 Oil supply cavity 130 Atomization assembly 140 Mouthpiece 141 Mist suction channel 142 Oil suction channel 143 Oil suction hole 150 Oil injection pipe 151 Oil injection hole 152 Elbow portion 153 Main stem portion 154 Branch portion 160 Buffer cotton 170 Oil storage cotton

[0025] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0028] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated, or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" throughout the text includes three solutions, taking A and / or B as an example, including A technical solution, B technical solution, and A and B simultaneously meet the technical solution; in addition, the technical solutions of each embodiment 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 appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0029] The present application provides an electronic cigarette, which comprises a shell, an atomization assembly, a suction nozzle and an oil injection pipe. An oil storage cavity and an oil supply cavity are formed inside the shell, and the oil supply cavity is located below the oil storage cavity. The atomization assembly is arranged in the oil storage cavity. The suction nozzle is arranged above the shell, and an internal suction channel and an oil suction channel are formed in the suction nozzle and communicate with the outside. The suction channel communicates with the atomization assembly. The oil injection pipe is sequentially arranged in the oil suction channel, the oil storage cavity and the oil supply cavity. The bottom end of the oil injection pipe is located at the bottom of the oil supply cavity. The oil injection pipe is located on one side of the atomization assembly, and a plurality of oil injection holes are formed on the part of the oil injection pipe located in the oil storage cavity. The length of the oil injection pipe is 5-20 cm, the inner diameter of the oil injection pipe is 1.5-2.0 mm, and the diameter of the oil injection hole is 0.5-1.0 mm.

[0030] When the user sucks, a negative pressure is formed in the oil suction channel, the tobacco juice in the oil supply cavity flows into the oil injection pipe, and then flows into the oil storage cavity through the oil injection hole formed on the oil injection pipe, so that the electronic cigarette of the application realizes oil injection through the user's suction, and the user does not need to manually supply oil to the oil storage cavity, and the experience is good. In addition, the oil injection amount of the oil storage cavity is positively correlated with the suction force and frequency of the user, and the oil consumption of the tobacco juice in the oil storage cavity is also positively correlated with the frequency of the user (and also positively correlated with the suction force in some cases), so that the electronic cigarette of the application can also automatically adjust the content of the tobacco juice in the oil storage cavity, thereby ensuring the stability of the content of the tobacco juice in the oil storage cavity, and the atomization effect of the atomization assembly is good and is not easy to burn.

[0031] The specific structure of the electronic cigarette will be mainly described below.

[0032] Please refer to Figure 1 and Figure 2 The electronic cigarette 10 of the application comprises a shell 100. The inside of the shell 100 is formed with an oil storage cavity 110 and an oil supply cavity 120, and the oil supply cavity 120 is located below the oil storage cavity 110. The oil supply cavity 120 is used for storing tobacco juice and supplying oil to the oil storage cavity 110.

[0033] Please refer to Figure 1 and Figure 2 The electronic cigarette 10 of the application comprises an atomization assembly 130, which is arranged in the oil storage cavity 110 and communicates with the oil storage cavity 110. The atomization assembly 130 can atomize the tobacco juice in the oil storage cavity 110.

[0034] Please refer to Figure 1 and Figure 2 The electronic cigarette 10 of the application comprises a mouthpiece 140 arranged above the shell 100. The inside of the mouthpiece 140 is formed with a smoke suction channel 141 communicating with the outside, and the smoke suction channel 141 communicates with the atomization assembly 130. The atomization assembly 130 and the smoke suction channel 141 can be sleeved, so that the connection effect of the two is good. The aerosol generated by the atomization assembly 130 can flow out through the smoke suction channel 141 in the mouthpiece 140 and be sucked by the user.

[0035] Specifically, the electronic cigarette 10 of the application comprises a gas guide pipe (not shown), the two ends of the gas guide pipe respectively communicate with the smoke suction channel 141 and the atomization cavity of the atomization assembly 130, and the aerosol generated in the atomization cavity flows into the smoke suction channel 141 through the gas guide pipe and is sucked by the user. The gas guide pipe has a guiding and limiting effect on the flow of the aerosol.

[0036] Please refer to Figure 1 and Figure 2The inside of the suction nozzle 140 is formed with an oil suction channel 142 which is in communication with the outside. The electronic cigarette 10 comprises an oil injection pipe 150. The oil injection pipe 150 is sequentially arranged in the oil suction channel 142, the oil storage cavity 110 and the oil supply cavity 120, the bottom end of the oil injection pipe 150 is located at the cavity bottom of the oil supply cavity 120, the oil injection pipe 150 is located at one side of the atomization assembly 130, and a plurality of oil injection holes 151 are formed on the part of the oil injection pipe 150 located in the oil storage cavity 110. When the user sucks, a negative pressure is formed in the oil suction channel 142, the tobacco tar in the oil supply cavity 120 flows into the oil injection pipe 150, and then flows into the oil storage cavity 110 through the oil injection holes 151 formed on the oil injection pipe 150. Therefore, the user does not need to manually supply oil to the oil storage cavity 110, and the user experience is good. In addition, the amount of oil injected into the oil storage cavity 110 is positively correlated with the suction force and frequency of the user, and the amount of tobacco tar consumed in the oil storage cavity 110 is also positively correlated with the frequency of the user (and also positively correlated with the suction force in some cases). Therefore, the electronic cigarette 10 can also automatically adjust the content of the tobacco tar in the oil storage cavity 110, thereby ensuring the stability of the content of the tobacco tar in the oil storage cavity 110, improving the atomization effect of the atomization assembly 130, and preventing the atomization assembly 130 from being burnt.

[0037] Please refer to Figure 1 and Figure 2 The oil suction channel 142 is formed by extending downward from the top inner wall of the suction nozzle 140, and the top wall of the suction nozzle 140 is provided with an oil suction hole 143 which is in communication with the oil suction channel 142. The diameter of the oil suction hole 143 can be 0.2-1.0mm, so that the tobacco tar is not easy to flow out of the top end of the oil injection pipe 150 during suction. Further, the diameter of the oil suction hole 143 can be 0.25-1.0mm, 0.6-1.0mm, 0.7-1.0mm, 0.5-0.6mm, 0.55-0.8mm, 0.75-0.85mm, 0.8-1.0mm, 0.5-0.7mm, 0.6-0.8mm, 0.85-1.0mm or 0.5-0.9mm, etc. Further, the diameter of the oil suction hole 143 can be 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm or 1.0mm, etc. The shape of the oil suction hole 143 can be various, and the shape of the oil suction hole 143 is not limited to be circular. The above diameter can be the diameter of the circumscribed circle of the oil suction hole 143.

[0038] The length of the oil filling tube 150 is 3-20 cm. Thus, the length of the oil filling tube 150 is appropriate, and the tobacco tar does not flow out of the top end of the oil filling tube 150 while the oil filling tube 150 fills the oil storage cavity 110 with oil. Further, the length of the oil filling tube 150 includes, but is not limited to, 3-6 cm, 5-15 cm, 3-5 cm, 4-8 cm, 7-15 cm, 10-12 cm, 5-10 cm, 6-13 cm, 15-20 cm, 13-15 cm, 12-18 cm, 17-20 cm, 14-16 cm, or 8-15 cm, etc. Further, the length of the oil filling tube 150 includes, but is not limited to, 3 cm, 3.5 cm, 4 cm, 4.5 cm, 5 cm, 5.5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, 16 cm, 17 cm, 18 cm, 19 cm, or 20 cm.

[0039] The inner diameter (the diameter of the inner wall) of the oil filling tube 150 is 1.5-2.0 mm. Thus, the inner diameter of the oil filling tube 150 is appropriate, and the tobacco tar does not flow out of the top end of the oil filling tube 150 when the user smokes. Further, the inner diameter of the oil filling tube 150 includes, but is not limited to, 1.55-2.0 mm, 1.6-2.0 mm, 1.7-2.0 mm, 1.5-1.6 mm, 1.55-1.8 mm, 1.75-1.85 mm, 1.8-2.0 mm, 1.5-1.7 mm, 1.6-1.8 mm, 1.85-2.0 mm, or 1.5-1.9 mm, etc. Further, the inner diameter of the oil filling tube 150 includes, but is not limited to, 1.5 mm, 1.55 mm, 1.6 mm, 1.65 mm, 1.7 mm, 1.75 mm, 1.8 mm, 1.85 mm, 1.9 mm, 1.95 mm, or 2.0 mm, etc.

[0040] The diameter of the oil injection hole 151 is 0.5-1.0 mm. In this way, the size of the oil injection hole 151 is appropriate, the oil storage cavity 110 can have a better oil injection effect, and the tobacco tar will not flow to the top end of the oil injection tube 150. Further, the diameter of the oil injection hole 151 includes but is not limited to 0.55-1.0 mm, 0.6-1.0 mm, 0.7-1.0 mm, 0.5-0.6 mm, 0.55-0.8 mm, 0.75-0.85 mm, 0.8-1.0 mm, 0.5-0.7 mm, 0.6-0.8 mm, 0.85-1.0 mm, or 0.5-0.9 mm, etc. Further, the diameter of the oil injection hole 151 includes but is not limited to 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm, 0.8 mm, 0.85 mm, 0.9 mm, 0.95 mm, or 1.0 mm, etc. The shape of the oil injection hole 151 is not limited to a circle, and the above diameter can be the diameter of the circumscribed circle of the oil injection hole 151. The shape of the oil injection hole 151 can be a circle, a square, a racetrack shape, a star shape, a petal shape, or an irregular shape, etc.

[0041] It can be understood that the length of the oil injection tube 150, the inner diameter of the oil injection tube 150, the diameter of the oil injection hole 151, and the size of the oil suction hole 143 are set in association, which can ensure that the oil storage cavity 110 can be injected with oil and the tobacco tar will not flow out of the top end of the oil injection tube 150 when the user smokes.

[0042] Referring to Figure 1 and Figure 2 , the oil injection tube 150 includes a bent tube portion 152, which has an extension length in the horizontal direction. The bent tube portion 152 can slow down the flow speed of the tobacco tar and lengthen the flow path of the tobacco tar, thereby avoiding the tobacco tar flowing out of the top end of the oil injection tube 150. The extension direction of the bent tube portion 152 can be parallel to the horizontal direction or intersect the horizontal direction, without specific limitation.

[0043] Referring to Figure 1 , the bent tube portion 152 can be located in the oil supply cavity 120. Compared with the oil storage cavity 110 and the mouthpiece 140, the oil supply cavity 120 has a relatively large space, which is more convenient for the setting of the bent tube portion 152. Of course, the bent tube portion 152 can also be located in the oil storage cavity 110 or the mouthpiece 140.

[0044] The number of the bent tube portion 152 can be one. The number of the bent tube portion 152 can also be multiple, and multiple bent tube portions 152 can be respectively arranged in the oil supply cavity 120, the oil storage cavity 110, or the mouthpiece 140.

[0045] The bent tube portion 152 can be substantially spiral, a S shape connected head to tail (such as Figure 1The shape of the bent pipe portion 152 can be a V-shape, a Z-shape, a U-shape, a W-shape, a Y-shape, a T-shape, a reverse T-shape, a reverse Y-shape, a reverse W-shape, a reverse U-shape, a reverse V-shape, a reverse Z-shape, a reverse W-shape, a reverse U-shape, a reverse V-shape, or a reverse Z-shape. When the number of the bent pipe portions 152 is more than one, the shapes of the different bent pipe portions 152 can be different. Of course, the shape of the bent pipe portion 152 can also be an irregular shape, as long as it can achieve the effect of hindering the tobacco tar from flowing to the top end of the oil injection pipe 150.

[0046] Referring to Figure 2 In an embodiment, the oil injection pipe 150 comprises a trunk portion 153 and a branch portion 154. The trunk portion 153 is sequentially arranged in the oil suction passage 142, the oil storage cavity 110, and the oil supply cavity 120. One end of the branch portion 154 is connected to the trunk portion 153 and is in communication with the trunk portion 153. The other end of the branch portion 154 is open and located in the oil storage cavity 110. The tobacco tar can flow into the oil storage cavity 110 through the branch portion 154, which can improve the oil injection effect of the oil storage cavity 110 and avoid the tobacco tar from further flowing out to the top end of the trunk portion 153.

[0047] Referring to Figure 2 The branch portion 154 can be a straight pipe. Of course, the branch portion 154 can also be a bent pipe, which is not limited. The number of the branch portion 154 can be one or more. The extension direction of the branch portion 154 can be parallel to the horizontal direction. The extension direction of the branch portion 154 can also intersect with the horizontal direction. The end of the branch portion 154 away from the trunk portion 153 can be inclined upward or downward.

[0048] Referring to Figure 2 A plurality of oil injection holes 151 are formed on the trunk portion 153 and the branch portion 154, so that the oil storage cavity 110 has a better oil injection effect.

[0049] In some embodiments, the inner wall of the oil injection pipe 150 is uneven, which can slow down the flow speed of the tobacco tar to avoid the tobacco tar from flowing to the top end of the oil injection pipe 150.

[0050] The length of the oil injection hole 151 in the axial direction of the oil injection pipe 150 is greater than the length of the oil injection hole 151 in the circumferential direction of the oil injection pipe 150. In this way, the oil injection hole 151 is arranged relatively long in the flow direction of the tobacco tar. The tobacco tar in the oil injection hole 151 can quickly flow out of the oil injection pipe 150 when passing through the oil injection hole 151 and is not easy to be guided to continue flowing upward by the oil injection pipe 150.

[0051] The distance between the top end of the smoke suction channel 141 and the top end of the oil suction channel 142 is 1-10 mm. In this way, the distance between the top end of the smoke suction channel 141 and the top end of the oil suction channel 142 is appropriate, and the user's suction can drive the tobacco tar to flow from the oil supply cavity 120 into the oil storage cavity 110 through the oil injection pipe 150. Further, the distance between the top end of the smoke suction channel 141 and the top end of the oil suction channel 142 includes but is not limited to 1-6 mm, 1-5 mm, 3-5 mm, 4-8 mm, 2-10 mm, 1-4 mm, 5-10 mm, 3-6 mm, 5-6 mm, 3-7 mm, 1-8 mm, 7-10 mm, 4-6 mm, or 8-9 mm, etc. Further, the length of the oil injection pipe 150 includes but is not limited to 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, or 10 mm, etc.

[0052] Referring to Figure 1 and Figure 2 , the electronic cigarette 10 of the present application includes a buffer cotton 160 arranged in the top end of the oil injection pipe 150, which is used to buffer the flow of gas. The buffer cotton 160 can slow down the speed of the drop in air pressure in the oil injection pipe 150, thereby slowing down the flow speed of the tobacco tar, which can flow more into the oil storage cavity 110, and the effect of oil injection is better. Understandably, the buffer cotton 160 can also block the flow of tobacco tar from the oil injection pipe 150.

[0053] Referring to Figure 1 and Figure 2 , the electronic cigarette 10 of the present application includes an oil storage cotton 170 arranged in the oil storage cavity 110 and sleeved outside the atomization assembly 130, the oil injection pipe 150 is arranged through the oil storage cotton 170, and the oil storage cotton 170 covers a plurality of oil injection holes 151. The oil storage cotton 170 is used to provide tobacco tar to the atomization assembly 130. The oil storage cotton 170 can timely draw out the tobacco tar flowing out of the oil injection hole 151, which on the one hand makes the effect of oil injection better, and on the other hand makes the tobacco tar not easy to flow to the top end of the oil injection pipe 150.

[0054] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made under the inventive concept of the present application, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An electronic cigarette, characterized in that, The electronic cigarette comprises: a shell, an oil storage cavity and an oil supply cavity are formed inside the shell, and the oil supply cavity is located below the oil storage cavity; an atomization assembly arranged in the oil storage cavity; a suction nozzle arranged above the shell, an inside of the suction nozzle is formed with a suction mist passage and a suction oil passage which are in communication with the outside, and the suction mist passage is in communication with the atomization assembly; an oil injection pipe, which is sequentially arranged in the suction oil passage, the oil storage cavity and the oil supply cavity, a bottom end of the oil injection pipe is located at a cavity bottom of the oil supply cavity, the oil injection pipe is located at one side of the atomization assembly, and a plurality of oil injection holes are formed on a portion of the oil injection pipe located in the oil storage cavity; wherein the length of the oil injection pipe is 3-20 cm, the inner diameter of the oil injection pipe is 1.5-2.0 mm, and the diameter of the oil injection hole is 0.5-1.0 mm. The suction oil passage is formed by extending downward from a top inner wall of the suction nozzle, a top wall of the suction nozzle is provided with a suction oil hole in communication with the suction oil passage, and the diameter of the suction oil hole is 0.2-1.0 mm.

2. The electronic cigarette of claim 1, wherein, The oil injection pipe comprises a bent pipe portion, the bent pipe portion has an extension length in the horizontal direction, and the bent pipe portion is located in the oil supply cavity, the oil storage cavity and / or the suction nozzle.

3. The electronic cigarette of claim 1, wherein, The bent pipe portion is in a spiral shape, a S shape connected head to tail, a V shape connected head to tail or a Z shape connected head to tail.

4. The electronic cigarette of claim 3, wherein, The oil injection pipe comprises a main stem portion and a branch portion, the main stem portion is sequentially arranged in the suction oil passage, the oil storage cavity and the oil supply cavity, one end of the branch portion is connected and communicated with the main stem portion, and the other end of the branch portion is provided in an open manner and located in the oil storage cavity.

5. The electronic cigarette of claim 1, wherein, The inner wall of the oil injection pipe is uneven.

6. The electronic cigarette of claim 1, wherein, The length of the oil injection hole in the axial direction of the oil injection pipe is greater than the length of the oil injection hole in the circumferential direction of the oil injection pipe.

7. The electronic cigarette of claim 1, wherein, The distance between the top end of the suction mist passage and the top end of the suction oil passage is 1-10 mm.

8. The electronic cigarette of claim 1, wherein, The electronic cigarette comprises:

9. The electronic cigarette of claim 1, wherein, a buffer cotton arranged in the top end of the oil injection pipe, and the buffer cotton is used for buffering the flow of gas. The electronic cigarette comprises:

10. The electronic cigarette of any one of claims 1 to 9, wherein, an oil storage cotton arranged in the oil storage cavity and sleeved on the atomization assembly, the oil injection pipe is arranged in the oil storage cotton, and the oil storage cotton covers the plurality of oil injection holes. ​

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