CN105704272B

CN105704272B - Motor fixing device and mobile terminal

Info

Publication number: CN105704272B
Application number: CN201610191583.XA
Authority: CN
Inventors: 李建发
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2016-03-30
Filing date: 2016-03-30
Publication date: 2020-01-07
Anticipated expiration: 2036-03-30
Also published as: CN105704272A

Abstract

The invention discloses a motor fixing device and a mobile terminal, comprising a PCB board for providing circuit connection for a motor; the motor also comprises a shell, wherein the inner surface of the shell is provided with a groove, and the groove is used for embedding one end of the motor; a hollow structure is arranged at the position, corresponding to the motor, of the PCB, the circumferential size of the hollow structure is larger than that of the part, embedded into the hollow structure, of the motor, and the other end of the motor is embedded into the hollow structure; the motor is connected with the PCB board through FPC or wires. The motor is not directly fixed with the PCB any more, so that the PCB and components on the PCB are not influenced by troublesome vibration any more, the risk of loosening the components is reduced, and the product quality stability is improved.

Description

Motor fixing device and mobile terminal

Technical Field

The invention belongs to the technical field of mobile communication devices, and particularly relates to a motor fixing device and a mobile terminal.

Background

The mobile phone motor generally refers to a small vibration motor applied to a mobile phone, and the main function of the mobile phone motor is to enable the mobile phone to generate a vibration effect.

The process type and application of the mobile phone motor are as follows:

1. the wire type is manual welding and socket with connector;

the material cost is low, a manufacturer needs to increase manual welding and assembling operation flows, and the labor cost is high;

2. the spring pieces are in contact type; special structural design and matching are needed, and the replaceability is poor;

3. the paster type: the method is divided into a planar surface mount type and a sinking plate surface mount type; early motor designers could not reduce the thickness of the motor to the minimum to meet the requirement of ultra-thin mobile phones, and developed a sinking plate type, which saves the thickness space of the PCB. The patch type motor has higher requirements on related materials because of the need of high-temperature reflow soldering, and the corresponding quality is the best of various types of motors and is also a material recommended by international brand mobile phones.

No matter which kind of technology connected mode, the motor all is direct and PCB board is connected, causes the motor to drive whole PCB board when the vibration so all at the vibration, and the vibration will produce the risk that takes off to all components and parts of being connected with the PCB board, also breaks away from with the PCB board easily including the motor itself, causes the cell-phone to damage. The user feels not good enough to use.

Disclosure of Invention

The invention provides a motor fixing device and a mobile terminal, and aims to solve the problems that in the prior art, a PCB is directly fixed with a motor, and the motor and other components are loosened from the PCB due to vibration of the motor.

In order to achieve the above object, the present invention provides a motor fixing device, which comprises a PCB board for providing circuit connection for a motor, and a housing, wherein the inner surface of the housing is provided with a groove for embedding one end of the motor; a hollow structure is arranged at the position, corresponding to the motor, of the PCB, the circumferential size of the hollow structure is larger than that of the part, embedded into the hollow structure, of the motor, and the other end of the motor is embedded into the hollow structure; the motor is connected with the PCB board through FPC or wires.

The shape of the hollow structure is circular, and the radius of the circular hollow structure is larger than the radius of the circumference of the motor by at least 0.2 mm.

Wherein, the part of the hollow structure contacting with the motor is sprayed with shielding material.

Wherein the motor is arranged in the middle or at the edge of the PCB.

When the motor is arranged on the edge of the PCB, the hollowed-out structure is a notch on the edge of the PCB.

Wherein, the notch is semicircular or U-shaped.

Wherein, the shell is a metal shell.

Wherein, the surface of shell is plane.

And, in order to solve the above object, the present invention also provides a mobile terminal provided with the above motor fixing structure.

According to the motor fixing device and the mobile terminal, the motor is not directly fixed with the PCB any more, but is fixed with the shell of the mobile terminal, so that the PCB and components on the PCB are not affected by troublesome vibration any more, the risk of loosening of the components is reduced, and the product quality stability is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

FIG. 2 is a schematic partial structure diagram according to a first embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a first embodiment of the present invention;

FIG. 4 is a schematic overall structure diagram of a second embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a second embodiment of the invention.

In the figure:

1	PCB board	2	Hollow structure
				3	Motor with a stator having a stator core	4	Outer casing
5	Groove

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A mobile terminal implementing various embodiments of the present invention will now be described with reference to the accompanying drawings. The mobile terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a navigation device, and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, it will be understood by those skilled in the art that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for moving purposes.

Example one

A first embodiment of the present invention provides a motor fixing device, as shown in fig. 1, 2 and 3, including a PCB board 1 for providing a circuit connection to a motor 3, the PCB board 1 being disposed in a mobile terminal. The PCB is also called a PCB, and is an important component for providing electrical connection for each electronic component in the mobile terminal. The circuit board can be divided into a single-sided board, a double-sided board, a four-layer board, a six-layer board and other multi-layer circuit boards according to the number of the layers of the circuit board. The PCB generally comprises a substrate, a metal coating, and a circuit layer. The motor is disposed in the middle of the PCB, which does not refer to only the middle portion of the PCB but refers to a portion of the PCB that is not an edge.

And further comprises a shell 4, wherein the shell 4 is a metal shell. The inner surface of the shell 4 is provided with a groove 5, the outer surface of the shell is a plane, and the groove 5 is used for embedding one end of the motor 3; a hollow structure 2 is arranged at a position, corresponding to the motor, of the PCB 1, the circumferential size of the hollow structure 2 is larger than the circumferential size of a part, embedded into the hollow structure, of the motor 3, and the other end of the motor 3 is embedded into the hollow structure 2; the motor 3 is connected with the PCB board 1 through FPC or wires. FPC, that is, a flexible printed circuit board, is a flexible printed circuit board made of a polyimide or polyester film as a base material, which has high reliability and is excellent. The high-density light-weight LED lamp has the characteristics of high wiring density, light weight, thin thickness and good bending property.

The hollow structure is circular, in order to make the motor does not cause vibration interference to the PCB, the radius of the circular hollow structure 2 is larger than the radius of the circumference of the motor by at least 0.2mm, so that the motor does not contact the PCB.

Of course, the hollow structure 2 may have other shapes than a circle, such as a square shape, and the shape of the hollow structure corresponds to the shape of the motor. The part of the hollow structure, which is contacted with the motor, is sprayed with a shielding material.

The motor fixing device of above realization, motor setting correspond the motor position on PCB in the hollow out construction that cuts in, the motor setting is at the non-border position of PCB board, inlays to put on PCB to fixed with the recess on the shell, hollow out construction and motor contactless to no longer whole PCB board then vibrates when making the motor vibration, thereby make other spare parts on the PCB board reduce the risk that the pine takes off.

Example two

The second embodiment of the present invention further provides a motor fixing device, referring to fig. 4 and 5, comprising a PCB board 1 for providing a circuit connection to a motor 3, the PCB board 1 being disposed in a mobile terminal. The PCB is also called a PCB, and is an important component for providing electrical connection for each electronic component in the mobile terminal. The circuit board can be divided into a single-sided board, a double-sided board, a four-layer board, a six-layer board and other multi-layer circuit boards according to the number of the layers of the circuit board. The PCB generally comprises a substrate, a metal coating, and a circuit layer.

Also comprises a shell 4, wherein the shell 4 is a metal shell. The inner surface of the shell 4 is provided with a groove 5, and the groove 5 is used for embedding one end of the motor 3; a hollow structure 2 is arranged at a position, corresponding to the motor, of the PCB 1, the circumferential size of the hollow structure 2 is larger than the circumferential size of a part, embedded into the hollow structure, of the motor 3, and the other end of the motor 3 is embedded into the hollow structure 2; the motor 3 is connected with the PCB board 1 through FPC or wires. FPC, that is, a flexible printed circuit board, is a flexible printed circuit board made of a polyimide or polyester film as a base material, which has high reliability and is excellent. The high-density light-weight LED lamp has the characteristics of high wiring density, light weight, thin thickness and good bending property.

Unlike the first embodiment, the motor is disposed at the edge of the PCB board. When the motor is arranged on the edge of the PCB, the hollowed-out structure is a notch on the edge of the PCB, and the notch is semicircular or U-shaped.

The motor fixing device of above realization, the motor setting can further reduce the motor to the occupation in PCB board space at the border position of PCB board to reduce the influence of breach to PCB board wiring.

EXAMPLE III

The third embodiment of the invention provides a mobile terminal, wherein the mobile terminal is provided with a PCB (printed circuit board) 1 for providing circuit connection for a motor 3, and the PCB 1 is arranged in the mobile terminal. Also comprises a shell 4, wherein the shell 4 is a metal shell. The inner surface of the shell 4 is provided with a groove 5, and the groove 5 is used for embedding one end of the motor 3; a hollow structure 2 is arranged at a position, corresponding to the motor, of the PCB 1, the circumferential size of the hollow structure 2 is larger than the circumferential size of a part, embedded into the hollow structure, of the motor 3, and the other end of the motor 3 is embedded into the hollow structure 2; the motor 3 is connected with the PCB board 1 through FPC or wires.

The mobile terminal of above realization, the motor is fixed with the inboard recess of shell, is provided with hollow out construction on the PCB board that the motor corresponds, makes the vibration of motor not drive PCB board and other components and parts vibrations in the whole mobile terminal to effectively reduced the risk that other components and parts drop from the PCB board, improved mobile terminal's quality stability.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A motor fixture comprising a PCB board for providing electrical connections to a motor, the motor fixture comprising: the motor also comprises a shell, wherein the inner surface of the shell is provided with a groove, and the groove is used for embedding one end of the motor; a hollow structure is arranged at the position, corresponding to the motor, of the PCB, the other end of the motor is embedded into the hollow structure, and the circumferential size of the hollow structure is larger than that of the part, embedded into the hollow structure, of the motor; the motor is connected with the PCB board through FPC or wires.

2. The motor fixing device according to claim 1, wherein: the shape of the hollow structure is circular, and the radius of the circular hollow structure is larger than the radius of the circumference of the motor.

3. The motor fixing device according to claim 1, wherein: the hollow structure is square, and the circumferential size of the square hollow structure is larger than that of the motor.

4. The motor fixing device according to claim 1, wherein: the part of the hollow structure, which is contacted with the motor, is sprayed with a shielding material.

5. The motor fixing device according to claim 1, wherein: the motor is arranged in the middle or at the edge of the PCB.

6. The motor fixing device according to claim 5, wherein: when the motor is arranged on the edge of the PCB, the hollowed-out structure is a notch on the edge of the PCB.

7. The motor fixing device according to claim 6, wherein: the notch is semicircular or U-shaped.

8. The motor fixing device according to claim 1, wherein: the shell is a metal shell.

9. The motor fixing device according to claim 1, wherein: the outer surface of the shell is a plane.

10. A mobile terminal, characterized by: the mobile terminal is provided with the motor fixing device of any one of claims 1-9.