CN210809280U

CN210809280U - Heating element and have this heating element's atomizer and electron cigarette

Info

Publication number: CN210809280U
Application number: CN201920715746.9U
Authority: CN
Inventors: 朱晓春
Original assignee: Shenzhen Kangte Ke Technology Co ltd
Current assignee: Shenzhen Smaco Technology Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-06-23
Anticipated expiration: 2029-05-16

Abstract

The utility model relates to the field of electronic cigarettes, and discloses a heating component, which comprises a first liquid absorbing part for absorbing liquid and a heating part fixedly connected with the first liquid absorbing part, wherein the first liquid absorbing part is made of porous materials, the heating part is made of conductive materials, and the heating component also comprises a second liquid absorbing part for absorbing liquid, and the second liquid absorbing part is made of porous materials; the heating part comprises a plurality of pores, and the second liquid suction part is filled in the pores of the heating part. The utility model discloses a problem of dry combustion method can be avoided to the heating element. The utility model also discloses an include the atomizer and the electron cigarette of the heating element.

Description

Heating element and have this heating element's atomizer and electron cigarette

Technical Field

The utility model relates to an electron cigarette technical field, concretely relates to heating element and have this heating element's atomizer and electron cigarette.

Background

In recent years, electronic cigarettes have attracted more and more attention, and the electronic cigarettes are free of harmful substances such as tar and aerosol in the cigarettes. A typical electronic cigarette includes a battery assembly and an atomizer electrically connected to the battery assembly. Be equipped with heating element and the stock solution chamber that is used for storing the tobacco tar in the atomizer, and the tobacco tar of stock solution intracavity can flow to heating element. After the atomizer is electrified, the heating component adsorbs tobacco tar and heats the tobacco tar to form smoke for a user to absorb. The problem of dry burning is easily caused when the existing heating component is heated.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention aims to provide a heating element capable of solving the above problems, and an atomizer and an electronic cigarette having the heating element.

For this reason, the utility model provides a heating assembly, including the first imbibition portion that is used for adsorbing liquid, and with the heating portion of first imbibition portion fixed connection, the first imbibition portion is made by porous material, the heating portion is made by conducting material, still include the second imbibition portion that is used for adsorbing liquid, the second imbibition portion is made by porous material; the heating part comprises a plurality of pores, and the second liquid suction part is filled in the pores of the heating part.

In some embodiments, the heating portion includes one or more of nickel, nickel foam, steel, nichrome, ferrochromium alloy, titanium.

In some embodiments, the first liquid-absorbing component is made of a microporous ceramic.

In some embodiments, the second liquid-absorbing part is formed by injecting ceramic slurry into pores of the heating part and heating and curing.

In some embodiments, the heat generating component is formed by sintering the first liquid absorbing part and the heating part injected with the ceramic slurry.

In some embodiments, the heating part is embedded in the first liquid absorbing part and extends in a bending manner along a transverse direction of the first liquid absorbing part.

In some embodiments, the heating part has a plate shape and is stacked on a surface of the first liquid-absorbing part along a main surface thereof.

On the other hand, the utility model also provides an atomizer, include aforementioned heating element, be used for the installation heating element's support and arrange in heating element with seal cover between the support.

In some embodiments, a plurality of sealing lips arranged at intervals are formed on the circumferential outer wall of the sealing sleeve in an outward extending mode, and the sealing lips abut against the inner wall of the support.

In some embodiments, the bracket includes a generally annular main body portion and a bridge portion connecting two opposite side walls of the main body portion, a liquid guide cavity is defined between an upper portion of the main body portion and the bridge portion, a receiving hole is formed in a lower portion of the main body portion, the heat generating component is at least partially received in the receiving hole, and the first liquid absorbing portion of the heat generating component is communicated with the liquid guide cavity.

In some embodiments, two opposite side walls of the main body portion respectively form a vertical channel, and the bridge portion forms a transverse channel, and two ends of the transverse channel are respectively communicated with a corresponding vertical channel.

In some embodiments, the outer wall of the main body part is formed with a rib part and a hook part which are oppositely arranged along the axial direction, and a clamping groove is formed between the rib part and the hook part at intervals.

In some embodiments, the body portion is formed with a blind bore adjacent the hook portion, the blind bore extending axially through an end of the body portion, and the blind bore being at least partially diametrically opposed to the hook portion.

In another aspect, the present invention further provides an electronic cigarette, which includes a battery pack and the aforementioned atomizer, wherein the atomizer is electrically connected to the battery pack.

The utility model discloses a heating element, its heating portion include a plurality of pores, and the second imbibition portion of making by porous material arranges in the pore of heating portion, consequently each place equipartition cloth has the material that can imbibition in the heating portion to carry out the imbibition, consequently in the heating process, heating portion can be in moist state all the time to effectively avoid the problem of heating element dry combustion method.

Drawings

Fig. 1 is a longitudinal sectional view of an electronic cigarette according to a first embodiment of the present invention.

Fig. 2 is a longitudinal sectional view of the electronic cigarette according to the first embodiment of the present invention, in another direction, in which parts have been omitted.

Figure 3 is a perspective assembly view of the heating element and the first sealing sleeve of the e-cigarette of figure 1.

Fig. 4 is a cross-sectional view of the heat generating component and the first sealing sleeve shown in fig. 3.

Fig. 5 is a partially enlarged schematic view of a heating portion of the heat generating component shown in fig. 3.

Figure 6 is a perspective view of a support of the e-cigarette shown in figure 1.

Fig. 7 is a perspective view of a heating element and a first sealing sleeve of an electronic cigarette according to a second embodiment of the present invention.

Fig. 8 is a cross-sectional view of the heat generating component and first sealing sleeve shown in fig. 7.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, so that the technical solutions and the advantages thereof will be more clearly understood. It is to be understood that the drawings are provided for purposes of illustration and description only and are not intended as a definition of the limits of the invention, but the dimensions shown in the drawings are for convenience and are not to be taken as limiting the scale.

Referring to fig. 1 and 2, an electronic cigarette according to a first embodiment of the present invention includes a battery assembly 10 and an atomizer 20 electrically connected to the battery assembly 10. The battery assembly 10 is used to power the atomizer 20, and the specific principle and construction thereof can be implemented by the prior art, and will not be described herein. The atomizer 20 is internally provided with a liquid storage cavity 31 for storing tobacco tar and a heating component 40, the tobacco tar in the liquid storage cavity 31 can flow to the heating component 40, and the heating component 40 is used for heating the tobacco tar to atomize the tobacco tar into smoke.

The heating unit 40 includes a first liquid absorbing portion 41 for absorbing the smoke, a heating portion 42 fixedly connected to the first liquid absorbing portion 41, and a second liquid absorbing portion provided in the heating portion 42. The first liquid-absorbing member 41 is made of a porous material, preferably a microporous ceramic. It will be appreciated that in other embodiments, the first liquid absorbing part 41 can be made of other porous materials capable of absorbing liquid. The heating portion 42 is made of a conductive material, and may include one or more of nickel, stainless steel, nichrome, ferrochromium alloy, and metallic titanium, for example. In other embodiments, the heater portion 42 may be made of other conductive, non-metallic materials, such as ceramic. A plurality of pores are formed in the heating portion 42. The heating portion 42 may be made of a metal foam formed by a method such as powder metallurgy or electroplating, may be formed by solid-phase sintering of powder particles, or may be formed by another method such as weaving of a mesh structure. The second liquid absorbing portion is filled in the pores of the heating portion 42. The second liquid absorbing part is preferably filled in the pores of the heating part 42 by means of grouting and heating for curing. Preferably, the second liquid absorbing part is also made of a porous material, so that liquid can be absorbed conveniently.

Both ends of the heating portion 42 are electrically connected to a conductive pin 43, respectively. The two conductive pins 43 are connected to a conductive pin 44, respectively. Two conductive pins 44 respectively connect the positive and negative electrodes of the battery assembly 10. Thus, power is supplied to the heating portion 42 to heat the heating portion. When the heating unit 42 is energized, the heating unit 42 heats the first liquid absorbing unit 41 and the second liquid absorbing unit, which have adsorbed the smoke, at the same time, thereby forming smoke. In the heating process, the first liquid absorbing part 41 and the second liquid absorbing part continuously absorb the tobacco tar from the liquid storage cavity 31 through respective pores, so that the heating part 42 is in a wet state, and the problem of dry burning of the heating part 42 is effectively avoided.

As shown in fig. 1, 3 and 4, the first liquid absorbing part 41 of the present embodiment includes an upper end 410 and a lower end 411 opposite to each other in the longitudinal direction of the electronic cigarette. The upper end 410 of the first liquid absorbing part 41 is communicated with the liquid storage cavity 31 and is used for absorbing the tobacco tar. Preferably, a receiving groove 412 is formed at the center of the upper end 410 of the first liquid absorbing part 41 for receiving the tobacco tar. In this embodiment, the receiving groove 412 is recessed from the upper end 410 toward the lower end 411. The heating unit 42 is attached to the lower end 411 of the first liquid-absorbing member 41 and faces the bottom of the housing groove 412. Preferably, in a longitudinal section of the first liquid absorbing member 41, the side walls of the housing groove 412 are inclined in a tapered manner from the upper end 410 to the lower end 411. In this embodiment, the longitudinal section of the accommodating groove 412 is a trapezoid with a wide top and a narrow bottom. The holding tank 412 thus configured has a wider upper portion that helps to receive the soot, and a narrower lower portion that helps to guide the soot to the area facing the heating portion 42, i.e., the bottom of the holding tank 412, to improve the efficiency of delivering the soot to the second liquid-absorbing portion, and particularly in the case where the amount of soot has been consumed to a small extent, the wet state of the heating portion 42 can be further ensured.

Specifically, as shown in fig. 3 and 4, the heating part 42 is embedded in the lower end 411 of the first liquid absorbing part 41, and is bent and extended along the transverse direction of the lower end 411 of the first liquid absorbing part 41, and the transverse length of the entire heating part 42 may be substantially equal to the transverse length of the bottom of the accommodating groove 412. In this embodiment, the heating portion 42 is substantially bent into a continuous waveform along the length direction thereof, and includes a plurality of parallel and spaced straight portions 420, and a connecting portion 421 for connecting the straight portions 420 end to end. The heating part 42 has a height defined in the longitudinal direction of the electronic cigarette. The height of the heating portion 42 is 1 to 5 times, preferably 2 to 3 times, the thickness thereof. The interval between the adjacent flat portions 420 is 1 to 3 times, preferably 1 to 2 times, the thickness thereof. In this embodiment, the height of the heating portion 42 is 2 times of the thickness thereof, and the interval between the adjacent straight portions 420 is substantially equal to the thickness thereof. In the present embodiment, the heating portion 42 has a uniform thickness, i.e., the flat portion 420 and the connection portion 421 thereof have the same thickness. It is understood that in other embodiments, the thicknesses of the straight portion 420 and the connection portion 421 may not be equal.

Referring also to fig. 5, in the present embodiment, the heating portion 42 is made of nickel foam and has a three-dimensional mesh structure. When prepared, foam plastics such as polyurethane can be used as a base material, and then a conductive nickel layer is plated on the base material, so that the three-dimensional reticular foam nickel in the embodiment is formed. The foamed nickel has a plurality of uneven pores 422, the porosity is more than 95%, and the number of the pores is preferably about 110 PPI. The second liquid absorbing portion 45 is filled in the void 422. Preferably, the second liquid absorbing part 45 is formed by injecting ceramic slurry into the pores 422 of the heating part 42 and heating and curing the ceramic slurry. When manufacturing, ceramic slurry may be injected into the heating portion 42, and then the heating portion 42 injected with the ceramic slurry and the first liquid absorbing member 41 are sintered together, thereby forming the heat generating component 40 in this embodiment.

The atomizer 20 further includes a liquid storage tube 30 for forming the liquid storage cavity 31, a base 50 abutted against the bottom end of the liquid storage tube 30, and a support 60 fixed to the top end of the base 50 and accommodated in the liquid storage tube 30, wherein the heating element 40 is fixed in the support 60. The conductive pin 44 is disposed in the base 50, and the conductive pin 43 of the heat generating component 40 extends into the hole of the conductive pin 44 and is electrically connected with the conductive pin 44.

Referring to fig. 1, 2 and 6, the bracket 60 in this embodiment is made of plastic and includes a generally annular main body portion 61 and bridge portions 62 connected between opposite sides of the main body portion 61. The upper portion of the body portion 61 is formed with a liquid guide chamber 63, and the lower portion of the body portion 61 is used for fixing the heating element 40. The top end of the liquid guide cavity 63 is communicated with the bottom end of the liquid storage cavity 31 in the liquid storage pipe 30, and the bottom end of the liquid guide cavity 63 is communicated with the accommodating groove 412 of the upper end 410 of the heating component 40. At least a portion of the inner wall of the drainage chamber 63 may also extend downward in a closed state to collect the tobacco tar to the heating element 40. In this embodiment, the bridging portions 62 respectively penetrate two opposite side walls of the main body portion 61 and are integrally connected to form a transverse channel 620 transverse to the longitudinal direction of the electronic cigarette. In this embodiment, the bridge portion 62 is a hollow rectangular parallelepiped, and a through-hole 621 is formed on the top wall thereof. Preferably, two opposite side walls of the main body portion 61 are also recessed to form a vertical channel 610, and the vertical channel 610 extends from the end of the bridge portion 62 to the axial bottom end of the corresponding side wall of the main body portion 61. Thus, the transverse channel 620 of the bridge 62 and the vertical channels 610 at the two ends of the bridge 62 together form an inverted U-shaped channel, and the inverted U-shaped channel communicates with the vent 621.

In this embodiment, an annular rib portion 611 is further formed on the outer wall of the main body portion 61 of the bracket 60, a hook portion 612 is provided at the lower end of the annular rib portion 611, and an engaging groove 613 is formed between the rib portion 611 and the hook portion 612 for engaging with the base 50. Specifically, an engaging portion 51 is formed at an axial upper end of the base 50, and the engaging portion 51 is engaged with the engaging groove 613. Preferably, a groove 52 is further formed on the base 50 corresponding to the hook 612 of the bracket 60, and the groove 52 is inserted and matched with the hook 612. When the bracket 60 and the base 50 are assembled, the bracket 60 is inserted into the base 50 from the axial top end of the base 50, in the process, the hook portion 612 of the bracket 60 is clamped to the groove 52 of the base 50 by using the elastic deformation of the plastic material, and then, the clamping portion 51 of the base 50 is clamped to the clamping groove 613 of the bracket 60, thereby forming the double fixing function of the bracket 60 and the base 50. A blind hole 614 is formed in the body portion 61 of the bracket 60 adjacent the hook portion 612, the blind hole 614 extending axially through one end of the body portion 61 and being at least partially diametrically opposed to the hook portion 612. The design of the blind hole 614 can provide a certain escape space, so that the hook portion 612 is easier to deform and is convenient to be clamped to the groove 52 of the base 50, and the assembly is more convenient.

The bracket 60 has a receiving hole 615 formed at the center of the bottom of the body portion 61, and the heating element 40 is at least partially received therein. In this embodiment, the receiving hole 615 faces the bottom of the drainage cavity 63. After the heating element 40 is mounted on the bracket 60, the receiving groove 412 of the first liquid absorbing part 41 faces and communicates with the bottom of the liquid guiding cavity 63.

Preferably, the electronic cigarette of the present embodiment further includes a first sealing sleeve 70 disposed between the heat generating component 40 and the inner wall of the receiving hole 615. The first sealing boot 70 has an annular sealing lip 71 protruding radially outward on the circumferential outer wall, and the radially outer end of the sealing lip 71 abuts against the inner wall of the receiving hole 615, so that the first sealing boot 70 is firmly and sealingly fixed to the main body 61 of the bracket 60. Preferably, the first sealing boot 70 is formed with two spaced annular sealing lips 71, which further enhance the sealing effect. Preferably, the middle inner wall of the main body portion 61 extends radially inward to form an annular limiting edge 616, and the axial upper end of the first sealing sleeve 70 abuts against the limiting edge 616, so that the limiting edge 616 is used for axially positioning the first sealing sleeve 70 and thus the heating assembly 40. In this embodiment, the first sealing boot 70 completely covers the heat generating component 40 in the circumferential direction. Specifically, the axial tip of the first seal boot 70 is formed with an inner flange 72 extending radially inward, and the inner flange 72 covers the tip end face of the first liquid-absorbing member 41. Preferably, the axially lower end of the first sealing boot 70 extends radially inward to form a sealing sheet 73, and the sealing sheet 73 covers the bottom end surfaces of both lateral sides of the heat generating component 40. Preferably, the sealing plate 73 extends into contact with the conductive pin 43 and at least partially wraps around the periphery of the conductive pin 43.

The electronic cigarette in this embodiment further includes a second sealing sleeve 80 disposed between the holder 60 and the reservoir 30 to prevent oil leakage at the connection position between the holder 60 and the reservoir 30. The middle part of the second sealing sleeve 80 is sealed and abutted against the top wall of the bridging part 62, and the middle part of the second sealing sleeve 80 is provided with an air outlet 81 communicated with the air vent 621 of the bridging part 62. The middle part of the top wall of the liquid storage tube 30 extends downwards along the axial direction to form a hollow cigarette holder part 32. The mouthpiece portion 32 comprises a first section 320 and a second section 321 which are axially connected. The outer diameter of the first section 320 is larger than that of the second section 321, so that a step 322 is formed on the first section 320. A hollow sleeve 90 is fixedly connected between the step 322 and the second sealing sleeve 80, an annular pipette 91 is fixedly connected in the sleeve 90, and both axial ends of the pipette 91 are respectively abutted against the end of the second section 321 of the mouthpiece part 32 and the middle part of the second sealing sleeve 80. The pipette 91 is preferably made of a microporous ceramic material for adsorbing condensed water generated by condensation of smoke to prevent the condensed water from being sucked into the user's mouth and affecting the taste. The suction pipe 91 centrally forms an exhaust passage 910 communicating with the mouthpiece portion 32, and the exhaust passage 910 communicates with the vent hole 621 of the bridge portion 62 via the exhaust port 81 of the second seal boot 80. In this embodiment, the inner diameter of the first section 320 of the mouthpiece portion 32 is larger than the inner diameter of the second section 321, which is beneficial to the formation of the airflow and reduces the force required for the user to suck. The top wall of the liquid storage pipe 30 is designed to be a cambered surface, so that the suction is more convenient, and the liquid storage pipe accords with the ergonomics.

When the electronic cigarette in this embodiment is used, when a user sucks on the mouthpiece portion 32, as shown by the arrow in fig. 2, outside air enters the cavity 54 in the base 50 through the air inlet 53 provided in the base 50. At the same time, the heating element 40 absorbs the tobacco tar from the liquid guiding cavity 63 and heats the tobacco tar to form smoke, and the smoke is mixed with air in the cavity 54, enters the air exhausting channel 910 of the liquid sucking pipe 91 through the vertical channel 610, the transverse channel 620, the air vent 621 and the air exhausting opening 81 of the second sealing sleeve 80 on the bracket 60, and finally is exhausted from the first section 320 of the mouthpiece part 32 for the user to suck.

Fig. 7 and 8 show a heating element 140 and a first sealing sleeve 70 of an electronic cigarette according to a second embodiment of the present invention. The second embodiment is mainly different from the first embodiment in the structure and/or configuration of the heating portion 142 of the heat generating component 140. In the present embodiment, the heating part 142 has a plate shape as a whole, and in the present embodiment, has a square plate shape having two opposite main surfaces, i.e., surfaces having the largest area defined by the length and width thereof. The heating section is disposed in the lateral direction with its main surface superposed on the axial bottom end face of the first liquid-absorbing section 41. Similar to the above embodiments, the heating part 142 of the present embodiment also forms a plurality of pores, and the second liquid absorbing part is filled in the pores of the heating part 142. In preparation, ceramic slurry may be injected into the pores of the plate-shaped heating part 142, and then the heating part 142 injected with the ceramic slurry and the first liquid absorbing part 41 are sintered together, thereby forming the heat generating element 140 in this embodiment. The heating element 140 of the present embodiment also advantageously ensures that the heating portion 142 does not dry out and improves heating efficiency. It will be appreciated that in other embodiments, the heating portion 142 may take on other configurations and/or arrangements of configurations.

It is to be understood that the above-described respective technical features may be used in any combination without limitation.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heating assembly comprises a first liquid absorbing part and a heating part, wherein the first liquid absorbing part is used for absorbing liquid, the heating part is fixedly connected with the first liquid absorbing part, the first liquid absorbing part is made of a porous material, the heating part is made of a conductive material, and the heating assembly is characterized by further comprising a second liquid absorbing part which is used for absorbing the liquid, and the second liquid absorbing part is made of a porous material; the heating part comprises a plurality of pores, and the second liquid suction part is filled in the pores of the heating part.

2. The heating assembly of claim 1 wherein the heating portion comprises one of nickel, nickel foam, steel, nichrome, iron-chromium-aluminum alloy, titanium.

3. The heat-generating component according to claim 1, wherein the first liquid-absorbing part is made of a microporous ceramic.

4. The heating element as claimed in claim 1, wherein the second liquid absorbing part is formed by injecting ceramic slurry into the pores of the heating part and heating and curing.

5. The heating element according to claim 4, wherein the heating element is formed by sintering the first liquid-absorbing part and the heating part impregnated with the ceramic paste.

6. The heating element as claimed in claim 1, wherein the heating part is embedded in the first liquid absorbing part and is bent and extended in a transverse direction of the first liquid absorbing part.

7. The heat generating module according to claim 1, wherein the heating portion has a plate shape and is stacked on a surface of the first liquid absorbing member along a main surface thereof.

8. Atomiser, characterised in that it comprises a heat-generating component according to any of claims 1-7, a support for mounting the heat-generating component, and a sealing sleeve arranged between the heat-generating component and the support.

9. The atomizer of claim 8, wherein a plurality of spaced sealing lips are formed on the circumferential outer wall of the sealing sleeve extending radially outwardly, the sealing lips abutting against the inner wall of the holder.

10. The atomizer of claim 8, wherein the holder comprises a generally annular main body portion and a bridge portion connecting two opposite side walls of the main body portion, an upper portion of the main body portion and the bridge portion together enclose a liquid guide chamber therebetween, a lower portion of the main body portion is formed with a receiving hole, the heat generating component is at least partially received in the receiving hole, and the first liquid absorbing portion of the heat generating component is communicated with the liquid guide chamber.

11. The nebulizer of claim 10, wherein each of the opposing side walls of the body portion defines a vertical channel, and wherein the bridge portion defines a transverse channel, each end of the transverse channel communicating with a corresponding vertical channel.

12. The atomizer of claim 10, wherein the outer wall of the body portion has ribs and hooks formed thereon and arranged axially opposite to each other, the ribs and hooks being spaced apart to form a snap groove.

13. The nebulizer of claim 12, wherein the body portion defines a blind bore adjacent the hook portion, the blind bore extending axially through an end of the body portion and at least partially diametrically opposite the hook portion.

14. An electronic cigarette comprising a battery assembly and the atomizer of claim 8, the atomizer being in electrical connection with the battery assembly.