Control circuit, power supply structure, and electronic cigarette

Patent metadata

Field	Value
Publication number	US-11955832-B2
Application number	US-201716338004-A
Country	US
Kind code	B2
Filing date	Sep 29, 2017
Priority date	Sep 30, 2016
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

A control circuit, a power supply structure and an electronic cigarette are disclosed. The power supply structure includes a battery receiving casing, and at least two battery cells are received in the battery receiving casing. The power supply structure further includes a bottom plate provided with contacts, and the bottom plate is disposed in the battery receiving casing. When the at least two battery cells are connected to a first group of contacts on the bottom plate, the at least two battery cells form a serial connection relationship. When the at least two battery cells are connected to a second group of contacts on the bottom plate, the at least two battery cells form a parallel connection relationship.

First claim

What is claimed is:

1. A power supply structure, comprising a battery receiving casing for receiving at least two battery cells, wherein the power supply structure further comprises a bottom plate provided with contacts, the bottom plate is disposed in the battery receiving casing;
when the at least two battery cells are connected to a first group of contacts on the bottom plate, the at least two battery cells form a series connection relationship;
when the at least two battery cells are connected to a second group of contacts on the bottom plate, the at least two battery cells form a parallel connection relationship;
wherein the bottom plate has a first surface and a second surface, the first group of contacts are formed on the first surface, the second group of contacts are formed on the second surface.

2. The power supply structure according to claim 1 , wherein the at least two battery cells comprise a first battery cell and a second battery cell, a positive pole of the first battery cell is led out through a lead wire and connected to a first contact member, a positive pole of the second battery cell is led out through a lead wire and connected to a second contact member;
the positive pole of the first battery cell is further connected to a positive output terminal of the power supply structure through another lead wire;
the power supply structure further comprises a third contact member which is led out through a lead wire and connected to the positive output terminal of the power supply structure;
the power supply structure further comprises a fourth contact member which is led out through a lead wire and connected to a negative electrode of the power supply structure;
the contacts on the bottom plate are electrically connected to the negative pole of the first battery cell, the first contact member, the negative pole of the second battery cell, the second contact member, the third contact member and the fourth contact member, respectively.

3. The power supply structure according to claim 2 , wherein the first surface and the second surface are each provided with a first negative contact, a first positive contact, a second contact, a second positive contact, a second negative contact and a ground contact;
the first negative contact, the first positive contact, the second contact, the second positive contact, the second negative contact and the ground contact on the first surface are configured for being electrically connected to the negative pole of the first battery cell, the first contact member, the third contact member, the second contact member, the negative pole of the second battery cell and the fourth contact member, respectively;
the first negative contact, the first positive contact, the second contact, the second positive contact, the second negative contact and the ground contact on the second surface are configured for being electrically connected to the negative pole of the first battery cell, the first contact member, the third contact member, the second contact member, the negative pole of the second battery cell and the fourth contact member, respectively;
on the first surface of the bottom plate, the first negative contact and the second positive contact are electrically connected, the first positive contact and the second contact are electrically connected, the second negative contact and the ground contact are electrically connected;
on the second surface of the bottom plate, the first negative contact, the second negative contact and the ground contact are electrically connected, the second contact and the second positive contact are electrically connected.

4. The power supply structure according to claim 2 , wherein the first contact member, the second contact member, the third contact member and the fourth contact member are each pogo pin.

5. The power supply structure according to claim 2 , further comprising a first reverse protection circuit and a second reverse protection circuit, wherein the first reverse protection circuit is connected between the positive pole of the first battery cell and the positive output terminal of the power supply structure, the second reverse protection circuit is connected between the third contact member and the positive output terminal of the power supply structure.

6. The power supply structure according to claim 1 , further comprising a cover which cooperates with the battery receiving casing to receive and fix the at least two battery cells and the bottom plate.

7. The power supply structure according to claim 1 , wherein the first surface of the bottom plate is provided with a serial connection identification, and the second surface of the bottom plate is provided with a parallel connection identification.

8. An electronic cigarette, comprising a microcontroller, an atomizing circuit, and the power supply structure according to claim 1 , wherein a positive output terminal of the power supply structure is connected to power input terminals of the microcontroller and the atomizing circuit, the microcontroller is electrically connected to the atomizing circuit.

9. The electronic cigarette according to claim 8 , further comprising a mode state indicating circuit connected to the microcontroller.

10. The power supply structure according to claim 1 , wherein the first surface and the second surface are two opposite surfaces of the bottom plate, when the serial-parallel connection state of the at least two battery cells needs to be switched, the bottom plate is turned over and reinstalled.

11. A control circuit, wherein the control circuit comprises a first group of contacts and a second group of contacts;
when the first group of contacts are connected to at least two battery cells, the at least two battery cells form a series connection relationship;
when the second group of contacts are connected to at least two battery cells, the at least two battery cells form a parallel connection relationship;
wherein the first group of contacts and the second group of contacts are provided on different surfaces of a circuit board.

12. The control circuit according to claim 11 , wherein the first group of contacts comprises:
a first negative contact, a first positive contact and a ground contact; and
an Nth contact, an Nth positive contact and an Nth negative contact, wherein N=2, 3, 4, . . . , n, and n is the number of battery cells;
the nth negative contact is electrically connected to the ground contact, the nth positive contact is electrically connected to the (n-1)th negative contact, the (n-1)th positive contact is electrically connected to the (n-2)th negative contact, and so on, until the second positive contact is electrically connected to the first negative contact;
the first positive contact and the Nth contact are electrically connected.

13. The control circuit according to claim 12 , wherein the second group of contacts comprises:
a first negative contact, a first positive contact and a ground contact; and
an Nth contact, an Nth positive contact and an Nth negative contact, wherein N=2, 3, 4, . . . , n, and n is the number of battery cells;
the ground contact is electrically connected to the first negative contact and the Nth negative contact, the Nth positive contact is electrically connected to the Nth contact.

14. The control circuit according to claim 11 , wherein the first group of contacts comprises:
a first negative contact and a ground contact; and
an Nth contact, an Nth positive contact and an Nth negative contact, wherein N=2, 3, 4, . . . , n, and n is the number of battery cells;
the nth negative contact is electrically connected to the groun

Assignees

• Joyetech Europe Holding Gmbh

Inventors

• Qiu Weihua

Classifications

• H02J7/575

  Parallel/serial switching of connection of batteries to charge or load circuit · CPC title

• H02J7/36 Primary

  Arrangements using end-cell switching · CPC title

• A24F40/40

  Constructional details, e.g. connection of cartridges and battery parts · CPC title

• A24F40/50

  Control or monitoring · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title