VIBRATION MOTOR

• US 20170012518A1
• Filed: 01/29/2016
• Published: 01/12/2017
• Est. Priority Date: 07/09/2015
• Status: Active Grant

• Current Assignee: AAC Technologies Pte Limited (AAC Technologies Holdings Inc.)
• Original Assignee: AAC Technologies Pte Limited (AAC Technologies Holdings Inc.)
• Inventors: Wang, Hongxing, Zhou, Rongguan, Mao, Lubin
• Granted Patent: US 10,090,745 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02K 16/02 Machines with one stator and two or more rotors
• CPC Class Codes: H02K 33/16 with polarised armatures moving in alternate directions by reversal or energisation of a single coil system

Abstract

A vibrating motor is provided in the present disclosure. The vibrating motor includes a shell, a vibrating module, a magnet module, a coil module and an elastic assembly. The shell provides a receiving cavity for receiving the vibrating module. The vibrating module includes a first vibrating member and a second vibrating member, and the magnet module receives in the vibrating module. The coil module is disposed under the magnet module; the elastic assembly includes a pair of a first elastic parts and a second elastic part. The first elastic parts suspend the vibrating module in the shell; and the second elastic part connects the first vibrating member with the second vibrating member. The magnet module is received in at least one of the first vibrating member and the second vibrating member.

Claims

1. A vibrating motor, comprising:

a shell providing a receiving cavity;

a vibrating module received in the receiving cavity and comprising a first vibrating member and a second vibrating member;

a magnet module received in the vibrating module; and

a coil module under the magnet module;

an elastic assembly comprising a pair of a first elastic parts and a second elastic part;

wherein the first elastic parts suspend the vibrating module in the shell, the second elastic part connects the first vibrating member with the second vibrating member, the magnet module is received in at least one of the first vibrating member and the second vibrating member.

2. The vibrating motor as described in claim 1, wherein the magnet module comprises a pair of permanent magnets received either in the first vibrating member or the second vibrating member.

3. The vibrating motor as described in claim 2, wherein the coil module is a coil disposed under the magnet module, and the coil is configured for providing a driving force to drive the first vibrating member or the second vibrating member to vibrate.

4. The vibrating motor as described in claim 1, wherein the magnet module comprises a first magnet part and a second magnet part respectively received in the first vibrating member and the second vibrating member.

5. The vibrating motor as described in claim 4, wherein the coil module comprises a first coil and a second coil respectively disposed under the first magnet part and the second magnet part, the first coil and the second coil are respectively configured for driving the first vibrating member and the second vibrating member to vibrate.

6. The vibrating motor as described in claim 1, wherein each of the first elastic parts is a U-shaped elastic member.

7. The vibrating motor as described in claim 6, wherein each of the first elastic parts comprises a first end, a second end and a connecting part, the connecting part connects the first end with the second end;

the first end and the second end are respectively connected to a corresponding end of the vibrating module and the shell.

8. The vibrating motor as described in claim 1, wherein the first vibrating member is aligned with the second vibrating member along a vibrating direction, the second elastic part is connected between the first vibrating member and the second vibrating member.

9. The vibrating motor as described in claim 8, wherein and the second elastic part is a spiral spring.

10. The vibrating motor as described in claim 1, wherein vibrating frequencies of the first vibrating member and the second vibrating member are expressed by the following formula:

11. The vibrating motor as described in claim 1, further comprising a pole module covering the magnet module, the pole module is configured for providing magnetic shielding for the magnet module.