HEATING CORE, ELECTRONIC CIGARETTE, AND PREPARATION METHODS THEREOF
A heating core includes a conductor and an e-liquid absorber. The conductor includes a cavity and the e-liquid absorber is disposed in the cavity.
1 . A heating core, comprising a conductor and an e-liquid absorber with a fixed structure; wherein the conductor comprises a cavity and the e-liquid absorber is disposed in the cavity.
2 . The heating core of claim 1 , wherein the conductor further comprises a channel communicating with the cavity.
3 . The heating core of claim 1 , wherein the e-liquid absorber is obtained by injecting a solidifiable material into a mold and hardening the solidifiable material, or injecting a solidifiable material into a mold, hardening and sintering the solidifiable material.
4 . The heating core of claim 1 , wherein the conductor comprises metal, graphene, or carbon nanomaterial; and the e-liquid absorber comprises ceramic, mica, or e-liquid absorbing resin.
5 . The heating core of claim 1 , wherein the e-liquid absorber comprises a first side wall and the conductor comprises an inner wall; and an outer surface of the first side wall is attached to the inner wall.
6 . The heating core of claim 1 , wherein the heating core further comprises a heating element dispose in the e-liquid absorber.
7 . The heating core of claim 6 , wherein the heating element comprises a conductive metal; the heating element comprises a conductive pin extending out of the e-liquid absorber; and the heating element is wrapped around the e-liquid absorber spirally.
8 . The heating core of claim 1 , wherein the conductor comprises a conductive pin.
9 . The heating core of claim 2 , wherein the conductor further comprises at least one e-liquid inlet communicating with the cavity and opposite to the e-liquid absorber.
10 . The heating core of claim 1 , wherein the e-liquid absorber comprises at least one through hole extending axially through a bottom surface and a top surface of the e-liquid absorber.
11 . The heating core of claim 9 , wherein the conductor further comprises a first hollow tube; the cavity is formed in the first hollow tube; and a plurality of e-liquid inlets is circumferentially disposed on the first hollow tube.
12 . The heating core of claim 11 , wherein the conductor further comprises a second hollow tube; one end of the first hollow tube shrinks and extends axially to form the second hollow tube; and the channel is disposed in the second hollow tube and communicates with the cavity.
13 . An electronic cigarette, comprising the heating core of claim 1 .
14 . The electronic cigarette of claim 13 , wherein the electronic cigarette further comprises an e-liquid tank and a mouthpiece; the e-liquid tank comprises an e-liquid chamber; the mouthpiece is disposed on one end of the e-liquid tank; the heating core is disposed in the e-liquid chamber; and at least part of an inner wall of the e-liquid tank corresponding to the e-liquid chamber operates as the conductor of the heating core.
15 . A method for preparing a heating core, the method comprising:
fixing the conductor comprising the cavity in a mold;
injecting a solidifiable material into the mold, and guiding the solidifiable material to the cavity; and
solidifying the solidifiable material in the cavity to form the e-liquid absorber.
16 . The method of claim 15 , wherein fixing the conductor comprising the cavity in a mold comprises:
fixing a heating element in the mold; and
guiding the heating element into the cavity.
17 . The method of claim 15 , wherein solidifying the solidifiable material in the cavity to form the e-liquid absorber comprises:
allowing the solidifiable material to stand and solidify in the cavity to form a precursor; and
sintering the precursor at 600-700° C. for at least 16 hours to obtain the e-liquid absorber.
18 . The method of claim 15 , wherein the conductor further comprises at least one e-liquid inlet communicating with the cavity and opposite to the e-liquid absorber; and the solidifiable material flows through the at least one e-liquid inlet into the cavity.
19 . A method for preparing an electronic cigarette, the method comprising:
preparing the heating core of claim 1 ; and
inserting the heating core into an e-liquid tank to form an electronic cigarette.