Liquid injection method of cartridge, cartridge and electronic cigarette

Patent metadata

Field	Value
Publication number	US-12329198-B2
Application number	US-202117450211-A
Country	US
Kind code	B2
Filing date	Oct 7, 2021
Priority date	Jun 3, 2019
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

A cartridge includes a cartridge housing having a liquid storage cavity, and a sealing member for sealing the liquid storage cavity, and a first electrode and a second electrode mounted on the sealing member. A first blind hole and a second blind hole are respectively disposed on the end face of the sealing member away from the liquid storage cavity. The liquid injection needle pierces the sealing member through the wall of at least one of the first blind hole and the second blind hole and communicates with the liquid storage cavity to inject liquid into the liquid storage cavity. After the liquid injection is completed, the liquid injection needle is pulled out, and the sealing member is self-sealed at the pierced position. The first blind hole is blocked by the first electrode while the second blind hole is blocked by the second electrode.

First claim

What is claimed is:

1. A cartridge comprising:
a cartridge housing that defines a vent tube and encloses a liquid storage cavity;
a sealing member made of an elastic material and is disposed at one end of the cartridge housing, forming a seal for the liquid storage cavity;
a first blind hole and a second blind hole formed on one end face of the sealing member away from the liquid storage cavity;
a first electrode and a second electrode mounted on the sealing member by insertion into the first blind hole and the second blind hole, respectively;
an atomizing head disposed in the cartridge housing in alignment with the vent tube, wherein the atomizing head comprises an atomizing tube housing an atomizing cavity and a heating structure, and the atomizing tube comprises a liquid inlet on a wall thereof; and
a separating assembly comprising a casing connected to a lifting rod, wherein the lifting rod extends through the vent tube and the casing sleeves over a portion of the vent tube and a portion of the atomizing head, when the lifting rod is in a first state, the casing blocks the liquid inlet in the atomizing tube, when the lifting rod is lifted to a second state, the casing is lifted with the lifting rod to expose the liquid inlet to the liquid storage cavity such that a liquid in the liquid storage cavity enters the atomizing tube through the liquid inlet,
wherein the lifting rod is separable from the casing and withdrawn from the vent tube.

2. The cartridge according to claim 1 , wherein the heating structure has a first pin in contact with the first electrode and a second pin in contact with the second electrode.

3. The cartridge according to claim 2 , wherein the sealing member is provided with a through hole, one end of the atomizing tube is inserted into the through hole.

4. The cartridge according to claim 1 , wherein the atomizing head further comprises a base, the base is located outside the liquid storage cavity and resists the end surface of the sealing member away from the liquid storage cavity.

5. The cartridge according to claim 4 , wherein the base is provided with a first mounting groove corresponding to the first blind hole and a second mounting groove corresponding to the second blind hole, one end of the first electrode passes through the bottom wall of the first mounting groove and is inserted into the first blind hole, the other end of the first electrode is against the bottom wall of the first mounting groove; and one end of the second electrode passes through the bottom wall of the second mounting groove and is inserted into the second blind hole, the other end of the second electrode abuts against the bottom wall of the second mounting groove.

6. The cartridge according to claim 1 , wherein one end of the vent tube serves as a smoke outlet that opens at one end of the cartridge housing, the sealing member is located at the other end of the cartridge housing relative to the smoke outlet, the first electrode and the second electrode are symmetrically arranged with respect to the central axis of the cartridge housing.

7. An electronic cigarette comprising the cartridge according to claim 1 .

8. The electronic cigarette according to claim 7 , wherein the cartridge further comprises a power supply device comprising a battery housing and a battery, the battery housing has an opening, and a partition is arranged in the battery housing, the partition divides the inner cavity of the battery housing into a battery mounting groove for installing the battery and a cartridge mounting groove for installing a cigarette cartridge, and the battery mounting groove is located at an end of the battery housing away from the opening.

9. The electronic cigarette according to claim 8 , wherein a first pole and a second pole are respectively installed on the partition, the first pole and the second pole are respectively is electrically connected to one of two electrodes of the battery, when the cartridge and the power supply device are in the first connection state, the first pole is in contact with the first electrode and is electrically connected; and when the cartridge and the power supply device are in the second connection state, the second pole is in contact with the second electrode and is electrically connected.

10. A liquid injection method for the cartridge according to claim 1 , the liquid injection method comprises the following steps:
step 1: piercing at least one of the first blind hole and the second blind hole in the cartridge with a liquid injection needle, and injecting a liquid in the liquid injection needle into the liquid storage cavity; and
step 2: pulling out the liquid injection needle from the sealing member.

11. The liquid injection method according to claim 10 , wherein an incision is provided on the wall of the second blind hole, during the liquid injection process, the pressure in the liquid storage cavity increases so that the incision is pushed open, the air in the liquid storage cavity is discharged from the cutout.

Assignees

• Changzhou Patent Electronic Tech Co Ltd

Inventors

• Qiu Weihua

Classifications

• A24F40/51

  Arrangement of sensors · CPC title

• A24F40/46

  Shape or structure of electric heating means · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title

• A24F40/85

  Maintenance, e.g. cleaning · CPC title

• A24F15/015

  with means for refilling of liquid inhalable precursors · CPC title