Mobile terminal

Patent metadata

Field	Value
Publication number	US-12058506-B2
Application number	US-202017640490-A
Country	US
Kind code	B2
Filing date	Jul 16, 2020
Priority date	Sep 6, 2019
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

This application provides a mobile terminal including a first magnet and a second magnet. At least a part of the first magnet and at least a part of the second magnet are disposed in the accommodating space. The first magnet is disposed on a back facet of the display module, the second magnet is disposed on the middle frame, and positions of the first magnet and the second magnet are disposed opposite to each other. The first magnet is a coil, and the second magnet is a main magnet; or the first magnet is a main magnet, and the second magnet is a coil. The main magnet is a Halbach array, and the main magnet generates a unilateral magnetic field on a side opposite to the coil.

First claim

What is claimed is:

1. A mobile terminal, comprising:
a middle frame and a housing;
a display module disposed on the middle frame, wherein an accommodating space is formed between the display module and the middle frame; and
a first magnet and a second magnet, wherein at least a part of the first magnet and at least a part of the second magnet are disposed in the accommodating space; and
the first magnet is disposed on a back facet of the display module, the second magnet is disposed on the middle frame, and positions of the first magnet and the second magnet are disposed opposite to each other, wherein
the first magnet is a coil, and the second magnet is a main magnet; or the first magnet is a main magnet, and the second magnet is a coil; and
the main magnet is a Halbach array to generate a unilateral magnetic field on a side opposite to the coil.

2. The mobile terminal according to claim 1 , wherein a part of the main magnet is embedded in a closed region wound by a wire of the coil.

3. The mobile terminal according to claim 2 , further comprising:
an auxiliary magnet located on a same side as of the main magnet;
a gap formed between the auxiliary magnet and the main magnet, wherein a part of the coil is located in the gap between the auxiliary magnet and the main magnet.

4. The mobile terminal according to claim 2 , further comprising a washer, wherein
when the first magnet is the main magnet, the washer is located on a surface of a side of the main magnet that is away from the display module; or
when the second magnet is the main magnet, the washer is located on a surface of a side of the main magnet that is away from the middle frame.

5. The mobile terminal according to claim 2 , further comprising a magnetic bowl to carry the main magnet, wherein
when the second magnet is the main magnet, the magnetic bowl is located on a surface of a side of the main magnet that is away from the display module.

6. The mobile terminal according to claim 1 , wherein the main magnet is located outside a closed region wound by a wire of the coil; and
opposite surfaces of the main magnet and the coil are parallel.

7. The mobile terminal according to claim 6 , further comprising:
an auxiliary magnet located on a same side as of the coil, wherein the auxiliary magnet is embedded in the closed region wound by the wire of the coil.

8. The mobile terminal according to claim 7 , wherein opposite sides of the auxiliary magnet and the main magnet are a same magnetic pole.

9. The mobile terminal according to claim 6 , further comprising a magnetic conductive plate, wherein
when the first magnet is the main magnet, the magnetic conductive plate is located on a surface of a side of the main magnet that is away from the display module, or the magnetic conductive plate is located on a surface of a side of the auxiliary magnet that is away from the middle frame; or
when the second magnet is the main magnet, the magnetic conductive plate is located on a surface of a side of the main magnet that is away from the middle frame, or the magnetic conductive plate is located on a surface of a side of the auxiliary magnet that is away from the display module.

10. The mobile terminal according to claim 6 , further comprising a coil magnetic shield, wherein
all surfaces other than at least a surface of a side of the coil facing the main magnet are wrapped by the coil magnetic shield.

11. The mobile terminal according to claim 10 , further comprising a first magnetic shield, wherein
all surfaces other than a surface of a side of the main magnet facing the coil are wrapped by the first magnetic shield.

12. The mobile terminal according to claim 1 , wherein the main magnet comprises a first main magnet part and a second main magnet part that is annular and nested on the first main magnet part, wherein
a magnetic pole direction of the second main magnet part is perpendicular to a magnetic pole direction of the first main magnet part.

13. The mobile terminal according to claim 1 , further comprising:
a support disposed on a surface of a side of the middle frame that is away from the display module;
a hole disposed on the middle frame, wherein
at least a part of the second magnet is located in the hole on the middle frame, and
the second magnet passes through the hole on the middle frame and is disposed on the support.

14. The mobile terminal according to claim 13 , further comprising a spring plate and a support block located in the hole on the middle frame, wherein
the spring plate is located between the second magnet and the support, and the spring plate is connected to the second magnet; and
the support block is disposed between the spring plate and the support, and an upper surface and a lower surface of the support block are respectively connected to the spring plate and the support.

15. The mobile terminal according to claim 1 , further comprising a spring plate and a support block, wherein
the spring plate, the support block, the first magnet, and the second magnet are all located in the accommodating space;
the spring plate is located between the second magnet and the middle frame, and the spring plate is connected to the second magnet; and
the support block is disposed between the spring plate and the middle frame, and an upper surface and a lower surface of the support block are respectively connected to the spring plate and the middle frame.

16. The mobile terminal according to claim 1 , further comprising a support plate including
an upper surface connected to the display module; and
a lower surface connected to the first magnet, wherein
an area of the upper surface of the support plate is larger than an area of a surface of a side of the first magnet that is close to the support plate.

Assignees

• Huawei Tech Co Ltd

Inventors

• Yu Zhuojun
• Yeh Chien Feng
• Ding Jun
• Lin Zhou

Classifications

• H04R2499/11

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• H04R2400/11

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• H04R11/02

  Loudspeakers · CPC title

• H04R9/025

  Magnetic circuit · CPC title

• H04R7/04 Primary

  Plane diaphragms · CPC title