Electronic cigarette with oval shaped cross section and manufacturing process thereof

Abstract

The invention discloses an oval-shaped electronic cigarette and manufacturing process thereof. Inner housing of vaporization assembly is arranged inside outer housing of vaporization assembly and sleeved on vaporization assembly which comprises e-cigarette liquid cup and vaporizer having an outer wall in close fit with inner wall of the inner housing of vaporization assembly. A space is formed between outer wall of the e-cigarette liquid cup and inner wall of the inner housing of vaporization assembly to serve as a vapor flow channel. The inner housing of vaporization assembly is arranged at one end with vapor flow outlet, the outer edge of which is hermetically connected with and pressed against bell-mouth structure formed on the mouthpiece.

Claims

1. An electronic cigarette with oval shaped cross section, comprising a battery assembly and an outer housing of battery assembly with an oval shaped cross section, a control assembly and an outer housing of control assembly with an oval shaped cross section, a vaporization assembly and an outer housing of vaporization assembly with an oval shaped cross section, and a mouthpiece with an oval shaped cross section, characterized in that: an inner housing of vaporization assembly is arranged inside the outer housing of vaporization assembly and is sleeved on the vaporization assembly, wherein the vaporization assembly comprises a vaporizer and an e-cigarette liquid cup, wherein an outer wall of the vaporizer is in close fit with an inner wall of the inner housing of vaporization assembly, and a space is formed between an outer wall of the e-cigarette liquid cup and the inner wall of the inner housing of vaporization assembly to serve as a vapor flow channel; the inner housing of vaporization assembly is arranged with a vapor flow outlet at one end, the outer edge of the vapor flow outlet is hermetically connected with a bell-mouth structure, which is formed on the mouthpiece and is made of soft material, in a manner of being pressed against each other; an inlet opening formed on the outer housing of vaporization assembly, an air inlet arranged on the vaporization assembly at an end where the vaporization assembly is connected with the control assembly, a vapor flow vent hole formed on outer wall of the joint between the e-cigarette liquid cup and the vaporizer, the vapor flow channel formed by the space between inner housing of vaporization assembly and outer wall of e-cigarette liquid cup, a vapor flow outlet, and a channel inside the mouthpiece, together constitute a continuous vapor flow pathway; and the outer housing of vaporization assembly and the outer housing of control assembly are tightly connected in a sleeve type, in order to make sure that the bell-mouth structure and outer edge of the vapor flow outlet can be tightly pressed against each other and can be hermetically connected.

2. The electronic cigarette with oval shaped cross section according to claim 1, characterized in that: the vaporizer is electrically connected with the control assembly by screw thread.

3. The electronic cigarette with oval shaped cross section according to claim 1, characterized in that: the tight connection of the sleeve type is a connection that, a protrusion portion arranged on the inner wall of the outer housing of vaporization assembly and a protrusion portion arranged on the outer wall of the outer housing of control assembly are axially matched with each other and are connected by snap joint.

4. The electronic cigarette with oval shaped cross section according to claim 1, characterized in that: the tight connection of the sleeve type is a connection that, the protrusion portion arranged on the inner wall of the outer housing of vaporization assembly and the protrusion portion arranged on the outer wall of the outer housing of control assembly are radially matched with each other and are connected by rotary joint.

5. The electronic cigarette with oval shaped cross section according to claim 1, characterized in that: the outer housing of vaporization assembly is tapering from the proximal end of the control assembly to the end where the mouthpiece is arranged.

6. A manufacturing process of an electronic cigarette with oval shaped cross section, characterized in that it comprises steps as follows: (1) assembling a control assembly: (1.1) installing a control panel into a support arranged inside the control assembly; (1.2) mounting a mounting part for the control panel; and (1.3) connecting output positive and negative electrodes with output terminal of the control panel; (2) assembling a battery assembly: (2.1) connecting the control assembly with positive and negative electrodes of the battery; (2.2) installing a battery into an outer housing of battery assembly; and (2.3) installing an end cap; (3) assembling a vaporization assembly: (3.1) assembling a vaporizer; (3.2) assembling an e-cigarette liquid cup; (3.3) assembling the e-cigarette liquid cup and the vaporizer to form the vaporization assembly; and (3.4) installing the assembled vaporization assembly into an inner housing of the vaporization assembly; (4) assembling a mouthpiece and an outer housing of the vaporization assembly: (4.1) moulding the outer housing of vaporization assembly and the mouthpiece which are made of different materials by secondary forming process or by two-color molding method; and (5) finally assembling: (5.1) after connecting the outer housing of battery assembly and the outer housing of control assembly in a sleeve type, moulding them in close fit with each other by ultrasonic method; and (5.2) connecting the outer housing of the vaporization assembly mounted with the mouthpiece with the outer housing of the control assembly in an axial sleeve type, connecting the protrusion portions which are formed on respective sleeve parts and are matched with each other by a snap joint to form a tight connection.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is an exploded view of an electronic cigarette with oval shaped cross section according to the present invention.

(2) FIG. 2 is a partial sectional view of an electronic cigarette with oval shaped cross section according to the present invention.

(3) FIG. 3 is a partial enlarged view of the structure as shown in FIG. 2.

(4) FIG. 4 is a schematic drawing of an electronic cigarette which has a housing formed with an inlet opening according to the present invention.

(5) FIG. 5 is a schematic drawing of an electronic cigarette illustrating a bell-mouth structure of a mouthpiece matching with a vapor flow outlet of a vaporizer according to the present invention.

(6) FIG. 6 is a schematic drawing of continuous vapor flow pathway of an electronic cigarette according to the present invention.

(7) FIG. 7 is a partial enlarged view of the structure as shown in FIG. 6.

LIST OF REFERENCE NUMERALS OF MAIN COMPONENTS

(8) 11 outer housing of battery assembly 12 outer housing of control assembly 121 protrusion portion 13 outer housing of vaporization assembly 131 inlet opening 132 protrusion portion 14 mouthpiece 141 bell-mouth structure 2 inner housing of vaporization assembly 21 vapor flow outlet 3 vaporization assembly 31 vaporizer 310 air inlet 311 vapor flow vent hole 32 e-cigarette liquid cup 4 vapor flow channel 5 control assembly 6 end cap

DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

(9) The present invention will be further explained below in conjunction with figures.

(10) Referring to FIG. 1, an electronic cigarette with oval shaped cross section comprises a battery assembly and an outer housing 11 of battery assembly which has an oval shaped cross section, a control assembly 5 and an outer housing 12 of control assembly which has an oval shaped cross section, a vaporization assembly and an outer housing 13 of vaporization assembly which has an oval shaped cross section, and a mouthpiece 14 which has an oval shaped cross section. The vaporizer 31 is electrically connected with the control assembly 5 by screw thread.

(11) Referring to FIGS. 1 and 4, the outer housing 13 of vaporization assembly is formed with an inlet opening 131, and the vaporization assembly 3 is arranged with an air inlet 310 at an end where it is connected with the control assembly 5. A vapor flow vent hole 311 is formed on outer wall of the joint between e-cigarette liquid cup 32 and vaporizer 31. A vapor flow channel 4 is formed by the space between inner housing 2 of vaporization assembly and outer wall of e-cigarette liquid cup 32. The inlet opening 131, the air inlet 310, the vapor flow vent hole 311, the vapor flow channel 4, vapor flow outlet 21, and a channel inside the mouthpiece 14, together constitute a continuous vapor flow pathway. The inner housing 2 of vaporization assembly is arranged inside the outer housing 13 of vaporization assembly and is sleeved on the vaporization assembly 3. The vaporization assembly 3 comprises a vaporizer 31 and an e-cigarette liquid cup 32, wherein the vaporizer 31 is in close fit with the inner housing 2 of vaporization assembly while the e-cigarette liquid cup 32 and the inner housing 2 of vaporization assembly are arranged in a manner such that a space is formed therebetween to serve as the vapor flow channel 4. The outer housing 13 of vaporization assembly has a structure tapering from the proximal end of the control assembly 5 to the end where the mouthpiece is arranged.

(12) Referring to FIG. 7, the inner housing 2 of vaporization assembly is arranged with a vapor flow outlet 21 at one end. The outer edge of the vapor flow outlet 21 is hermetically connected with the bell-mouth structure 141, which is formed on the mouthpiece 14 and is made of soft material, in a manner of being pressed against each other.

(13) Referring to FIG. 6, the inlet opening 131 formed on the outer housing 13 of vaporization assembly, the air inlet 310 arranged on the vaporization assembly 3 at the end where the vaporization assembly 3 is connected with the control assembly 5, the vapor flow vent hole 311 formed on outer wall of the joint between e-cigarette liquid cup 32 and vaporizer 31, the vapor flow channel 4 formed by the space between inner housing 2 of vaporization assembly and outer wall of e-cigarette liquid cup 32, the vapor flow outlet 21, and the channel inside the mouthpiece, together constitute a continuous vapor flow pathway.

(14) Referring to FIGS. 2, 3 and 6, the outer housing 13 of vaporization assembly and the outer housing 12 of control assembly are tightly connected in a sleeve type, in order to make sure that the bell-mouth structure 141 and the vapor flow outlet 21 can be tightly pressed against each other and can be hermetically connected.

(15) Referring to FIG. 3, the outer housing 13 of vaporization assembly and the outer housing 12 of control assembly are tightly connected in a sleeve type that, a protrusion portion 132, which is arranged on the inner wall of the outer housing 13 of vaporization assembly, and a protrusion portion 121, which is arranged on the outer wall of the outer housing 12 of control assembly, are connected by axial snap joint.

(16) In an optional manner, the outer housing 13 of vaporization assembly and the outer housing 12 of control assembly are tightly connected in a sleeve type that, the protrusion portion 132, which is arranged on the inner wall of the outer housing 13 of vaporization assembly, and the protrusion portion 121, which is arranged on the outer wall of the outer housing 12 of control assembly, are connected by radial rotary joint.

(17) Referring to the FIGS. 1-7, manufacturing process of an electronic cigarette with oval shaped cross section comprises steps as follows:

(18) (1) Assembling a control assembly 5:

(19) (1.1) installing a control panel into a support (not shown in figures) arranged inside the control assembly 5;

(20) (1.2) mounting a mounting part (not shown in figures) for the control panel;

(21) (1.3) connecting output positive and negative electrodes with output terminal of the control panel.

(22) (2) Assembling a battery assembly:

(23) (2.1) connecting the control assembly 5 with positive and negative electrodes of the battery;

(24) (2.2) installing a battery into an outer housing 11 of battery assembly;

(25) (2.3) installing an end cap 6.

(26) (3) Assembling a vaporization assembly 13:

(27) (3.1) assembling a vaporizer 31;

(28) (3.2) assembling an e-cigarette liquid cup 32;

(29) (3.3) assembling the e-cigarette liquid cup 32 and the vaporizer 31 to form the vaporization assembly 3;

(30) (3.4) installing the assembled vaporization assembly 3 into an inner housing 2 of vaporization assembly;

(31) (3.4) installing the assembled e-cigarette liquid cup 32 and vaporizer 31 to form the inner housing 2 of vaporization assembly.

(32) (4) Assembling a mouthpiece 14 and an outer housing 13 of vaporization assembly:

(33) (4.1) moulding the mouthpiece 14 and the outer housing 13 of vaporization assembly which are made of different materials by secondary forming process or by two-color molding method.

(34) (5) Finally assembling:

(35) (5.1) after connecting the outer housing 11 of battery assembly and the outer housing 12 of control assembly in a sleeve type, moulding them in close fit with each other by ultrasonic method;

(36) (5.2) connecting the outer housing 13 of vaporization assembly mounted with the mouthpiece 14 with the outer housing 12 of control assembly in an axial sleeve type, connecting the protrusion portion 121 and the protrusion portion 132 which are formed on respective sleeve part and are matched with each other by snap joint to form a tight connection.

(37) All the above are merely the preferred embodiments of the present invention. The present invention is intended to cover various modifications and equivalent arrangements included within the principle and scope of the present invention.