CN214591551U

CN214591551U - Cell-phone backshell that structural strength is high

Info

Publication number: CN214591551U
Application number: CN202120719147.1U
Authority: CN
Inventors: 肖华平; 叶小兵
Original assignee: Shenzhen Xinhongli Precision Industry Co Ltd
Current assignee: Shenzhen Xinhongli Precision Industry Co Ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-11-02
Anticipated expiration: 2031-04-09

Abstract

The utility model discloses a mobile phone rear shell with high structural strength, which comprises a metal piece and a plastic piece coated on the periphery of the metal piece, wherein the metal piece comprises a first through hole and a second through hole which are penetrated in front and back; the plastic part is provided with a third through hole corresponding to the first through hole and a fourth through hole corresponding to the second through hole; and, the metal member is "L" shaped with a reinforcement protrusion extending forward. So, through setting up the metalwork in the plastic part, just, the design benefit of metalwork for current cell-phone backshell, improved the overall structure intensity of cell-phone backshell effectively, also further improved the ability of preventing falling of cell-phone backshell, protected the inside electronic component of cell-phone. Moreover, the downside of metalwork is equipped with the wave face, has further improved the structural strength of metalwork for the structural strength of cell-phone backshell is higher.

Description

Cell-phone backshell that structural strength is high

Technical Field

The utility model relates to a cell-phone field especially relates to a cell-phone backshell that structural strength is high.

Background

The mobile phone rear shell is an indispensable component in production and assembly of the mobile phone, the mobile phone rear shell is made of metal or plastic in the past, but the mobile phone rear shell made of metal can increase the overall weight of the mobile phone and influence the use experience of a user; the mobile phone rear shell made of plastic has the problems of insufficient rigidity and falling resistance;

later, a mobile phone rear shell made of a plastic part and a metal part is produced, so that the defects of heavy weight and falling resistance in the traditional technology are effectively overcome; however, the existing plastic-metal parts still have some disadvantages, such as more complicated manufacturing and further improved rigidity.

Therefore, a new technical solution is needed to solve the above problems.

Disclosure of Invention

In order to solve the defects and deficiencies of the prior art, the utility model provides a mobile phone rear shell with high structural strength.

The utility model adopts the technical proposal that: a mobile phone rear shell with high structural strength comprises a metal piece and a plastic piece coated on the periphery of the metal piece, wherein the metal piece comprises a first through hole and a second through hole which penetrate through the metal piece from front to back; the plastic part is provided with a third through hole corresponding to the first through hole and a fourth through hole corresponding to the second through hole; and, the metal member is "L" shaped with a reinforcement protrusion extending forward.

Preferably, the metal piece is insert-molded in the plastic piece.

Preferably, the reinforcing protrusion is provided on an upper side of the metal member, and a lower side of the metal member has a wavy surface.

Preferably, the wavy surface is arranged on the front side and the rear side of the metal piece, and the wavy surface extends upwards from the lower end of the metal piece.

Preferably, the height of the wave surface extending upwards is more than one third of the height of the metal piece and less than one half of the height of the metal piece.

Preferably, the first through holes and the second through holes are arranged at intervals up and down; correspondingly, the third through hole and the fourth through hole are arranged at an upper-lower interval.

Preferably, the periphery of the plastic part extends forwards to form a buckle used for buckling with the mobile phone body.

Preferably, the buckle is provided with a plurality of along the periphery circumference of plastic part.

Preferably, the metal piece is an aluminum alloy piece.

The utility model has the advantages that: compared with the prior art, the utility model discloses a set up the metalwork in the plastic part, just, the design benefit of metalwork for current cell-phone backshell, has improved the overall structure intensity of cell-phone backshell effectively, has also further improved preventing of cell-phone backshell and has fallen the ability, has protected the inside electronic component of cell-phone.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a rear view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a partially enlarged view of fig. 3.

The reference numbers illustrate:

100. mobile phone rear shell 10, metal piece 11 and reinforcing convex part

12. Wavy surface 20, plastic part 21 and fastener.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention.

Referring to fig. 1 to 4, a mobile phone rear case with high structural strength in an embodiment of the present invention includes a metal member 10 and a plastic member 20 coated on the periphery of the metal member 10, where the metal member 10 includes a first through hole and a second through hole penetrating through the front and back; the plastic part 20 is provided with a third through hole corresponding to the first through hole and a fourth through hole corresponding to the second through hole; and, the metal member 10 has an "L" shape having a reinforcement protrusion 11 extending forward. Therefore, the metal piece 10 is arranged in the plastic piece 20, the design of the metal piece 10 is ingenious, the overall structural strength of the mobile phone rear shell 100 is effectively improved, the anti-falling capacity is further improved, and the electronic elements in the mobile phone are protected.

In the preferred embodiment of the present invention, the metal member 10 is insert-molded in the plastic member 20; compared with the traditional plastic-metal piece 10 mobile phone rear shell 100 manufacturing process which adopts assembly, the method has the advantages of simple manufacturing and high production efficiency; meanwhile, the structure has the advantages of stable and firm structure.

In the preferred embodiment of the present invention, the reinforcing protrusion 11 is disposed on the upper side of the metal member 10, and the lower side of the metal member 10 has a wavy surface 12. Specifically, the wavy surface 12 is disposed on the front and rear sides of the metal member 10, and the wavy surface 12 extends upward from the lower end of the metal member 10. Thus, the structural strength of the metal piece 10 is further improved, so that the structural strength of the mobile phone rear case 100 after injection molding is higher. Specifically, the height of the upward extension of the wavy surface 12 is greater than one third of the height of the metal piece 10 and less than one half of the height of the metal piece 10, so that the strength of the mobile phone rear case 100 is satisfied, the overall weight of the mobile phone rear case 100 is well limited, the weights of the upper side and the lower side of the mobile phone rear case 100 are approximately the same, and the mobile phone can keep a good use hand feeling.

In a preferred embodiment of the present invention, the first through holes and the second through holes are arranged at intervals from top to bottom; correspondingly, the third through hole and the fourth through hole are arranged at an upper-lower interval. Here, it should be noted that the first through hole, the second through hole, the third through hole and the fourth through hole are all for avoiding the camera of the mobile phone, and in some different models of mobile phones, only one through hole may be required to be arranged, or more through holes may be arranged for avoiding the camera of the mobile phone; or more through holes are arranged to avoid the flash lamp.

In the preferred embodiment of the present invention, the periphery of the plastic part 20 extends forward to form a buckle 21 for buckling with the body of the mobile phone; when the mobile phone rear shell is used, the mobile phone rear shell 100 and a mobile phone body of a corresponding model can be directly buckled, and the assembly is simple and convenient. Generally, the plurality of buckles 21 are arranged along the circumferential direction of the plastic part 20, so that the assembly stability of the mobile phone rear shell 100 and the mobile phone body is further ensured, and the problem that the mobile phone rear shell 100 cannot be assembled with the mobile phone body due to the damage of the single buckle 21 is also avoided.

In the preferred embodiment of the present invention, the metal member 10 is an aluminum alloy member; the aluminum alloy piece is adopted as the metal piece 10 of the embodiment, which has the following advantages: 1. the aluminum alloy is relatively light in weight, and cannot burden the overall weight of the mobile phone; 2. the cost of the aluminum alloy is low, so that manufacturers can conveniently control the production cost, and the aluminum alloy is easy to obtain in the market; 3. compared with other common metal parts 10, the aluminum alloy has good heat conduction performance, can conduct heat to internal electronic elements of the mobile phone body, reduces the internal temperature of the mobile phone body, and prolongs the service life of the electronic elements.

The following generally describes the manufacturing process of the mobile phone rear case 100 of the present embodiment:

firstly, punching a first through hole, a second through hole and a reinforcing convex part 11 on a metal piece 10 by using a punching die, and then placing the metal piece 10 in an injection die; the rear case 100 of the cellular phone of the present embodiment is manufactured by injection molding. Therefore, the method has the advantages of simple production and manufacture and cost saving.

The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. But rather, obvious variations and modifications may be made without departing from the spirit of the invention.

Claims

1. The utility model provides a cell-phone backshell that structural strength is high which characterized in that: the plastic part is coated on the periphery of the metal part, and the metal part comprises a first through hole and a second through hole which penetrate through the metal part from front to back; the plastic part is provided with a third through hole corresponding to the first through hole and a fourth through hole corresponding to the second through hole; and, the metal member is "L" shaped with a reinforcement protrusion extending forward.

2. The mobile phone rear shell with high structural strength of claim 1, wherein: the metal piece is embedded and molded in the plastic piece.

3. The mobile phone rear shell with high structural strength of claim 1, wherein: the reinforcing convex part is arranged on the upper side of the metal part, and the lower side of the metal part is provided with a wavy surface.

4. The mobile phone rear shell with high structural strength of claim 3, wherein: the wavy surface is arranged on the front side surface and the rear side surface of the metal piece, and the wavy surface extends upwards from the lower end of the metal piece.

5. The mobile phone rear shell with high structural strength of claim 4, wherein: the height of the upward extension of the wavy surface is greater than one third of the height of the metal piece and less than one half of the height of the metal piece.

6. The mobile phone rear shell with high structural strength of claim 1, wherein: the first through holes and the second through holes are arranged at intervals up and down; correspondingly, the third through hole and the fourth through hole are arranged at an upper-lower interval.

7. The mobile phone rear shell with high structural strength of claim 1, wherein: the periphery of plastic part extends forward and has the buckle that is used for with cell-phone fuselage lock.

8. The mobile phone rear shell with high structural strength of claim 7, wherein: the buckle is provided with a plurality ofly along the periphery circumference of plastic part.

9. The mobile phone rear shell with high structural strength of claim 1, wherein: the metal piece is an aluminum alloy piece.