Shell structure with damping lock catches for terminals

Abstract

Provided are a shell structure and a terminal device. The shell structure includes a first shell; herein, multiple lock catch structures are installed on an inner surface of the first shell and a first through hole is formed by the lock catch structure. A damping plate and a compression part are sequentially arranged in a direction facing the first shell in the first through hole, and the first through hole is connected with the damping plate in a clamping way.

Claims

1. A shell structure, comprising a first shell (1); wherein a plurality of lock catch structures (3) are installed on an inner surface of the first shell (1) and a first through hole (5) is formed by the lock catch structure (3); a damping plate (6) and a compression part (7) are sequentially arranged in a direction facing the first shell (1) in the first through hole (5); and the first through hole (5) is connected with the damping plate (6) in a clamping way; wherein the first through hole (5) comprises a first round hole (501) with a first diameter and a second round hole (502) with a second diameter; the first round hole (501) is coaxial and connected with the second round hole (502), and the second diameter is less than the first diameter; the second round hole (502) is located at one end of the lock catch structure (3) facing the first shell (1); the compression part (7) is located at one end of the first round hole (501) facing the first shell (1); a first clamping part (5011) is formed on an inner wall of the first round hole (501), the damping plate (6) has a second clamping part (601); the first clamping part (5011) and the second clamping part (601) are clamped with each other to form a clamping structure; and the damping plate (6) is stuck in the first round hole (501); wherein the shell structure further comprises a second shell (2) which is arranged opposite to the first shell (1); and the lock catch structure (3) is arranged on the inner surface of the first shell (1) facing the second shell (2).

2. The shell structure according to claim 1, wherein a second through hole matching with a self-tapping screw (8) is formed by the damping plate (6) and the compression part (7); the second shell (2) is provided with a self-tapping stud (4) matching with the self-tapping screw (8); a rigid connection of the self-tapping screw (8) with the self-tapping stud (4) is formed through the second through hole to connect the first shell (1) with the second shell (2).

3. The shell structure according to claim 2, wherein a pressure is transferred to the damping plate (6) by the rigid connection when the first shell (1) or the second shell (2) is subjected to the pressure facing an inside of the shell structure, and the second clamping part (601) is departed from the first clamping part (5011) when the pressure reaches a preset threshold; and the damping plate (6) compresses the compression part (7) to make the compression part (7) deformed.

4. A terminal device, comprising the shell structure according to claim 3.

5. A terminal device, comprising the shell structure according to claim 2.

6. The shell structure according to claim 1, wherein an avoiding space allowing deformation of the compression part is formed between the first round hole (501) and the compression part (7); a damping gap allowing deformation of the compression part (7) is formed between the damping plate (6) and the compression part (7); and a deformation space allowing deformation of the lock catch structure (3) is formed between the lock catch structure (3) and a side wall of the first shell (1).

7. A terminal device, comprising the shell structure according to claim 6.

8. The shell structure according to claim 1, wherein the first clamping part (5011) is a bulge structure located on a side surrounding part of the damping plate (6), and the second clamping part (601) is a groove structure matching with the first clamping part (5011).

9. A terminal device, comprising the shell structure according to claim 8.

10. The shell structure according to claim 1, wherein the damping plate (6) is made of polycarbonate or polyformaldehyde; the compression part (7) is made of silica gel; and the lock catch structure (3) is a columnar hollow structure and made of Thermoplastic Polyurethanes (TPU) having Shore hardness within a preset range.

11. A terminal device, comprising the shell structure according to claim 10.

12. A terminal device, comprising the shell structure according to any one of claims 1.

13. The terminal device according to claim 12, wherein the terminal further comprises a touch screen (9) which is fixedly connected with a second shell (2) of the shell structure.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 is an exploded view of a terminal device provided by an embodiment of the present application.

(2) FIG. 2 is a structure diagram of a first shell provided by an embodiment of the present application.

(3) FIG. 3 is an axial section view when a lock catch structure and a self-tapping stud provided by an embodiment of the present application are in a matching state.

(4) FIG. 4 is a structure diagram of a first through hole provided by an embodiment of the present application.

(5) FIG. 5 is an axial section view when a lock catch structure and a self-tapping stud provided by an embodiment of the present application are in a static load state.

(6) FIG. 6 is an axial section view when a lock catch structure and a self-tapping stud provided by an embodiment of the present application are in a damping state.

Description of Numbers in Drawings

(7) 1. first shell; 2. second shell; 3. lock catch structure; 4. self-tapping stud; 5. first through hole; 501. first round hole; 5011. first clamping part; 502. second round hole; 6. damping plate; 601. second clamping part; 7. compression part; 8. self-tapping screw; and 9, touch screen.

DETAILED DESCRIPTION

(8) The scheme of the present application will be described in detail below in combination with drawings and specific embodiments.

(9) The present application provides a shell structure and a terminal device.

(10) As shown in FIG. 1 and FIG. 2, embodiments of the present application provide a shell structure which includes a first shell 1; herein, multiple lock catch structures 3 are installed on an inner surface of the first shell 1.

(11) Alternatively, the shell structure further includes a second shell 2 which is arranged opposite to the first shell 1; herein, the lock catch structures 3 are arranged on the inner surface of the first shell 1 facing the second shell 2. Generally, the first shell 1 is taken as a rear shell of a terminal device, and the second shell 2 is taken as a front shell of the terminal device.

(12) Alternatively, four lock catch structures 3 are arranged, and a deformation space allowing deformation of the lock catch structure 3 is formed between the lock catch structure 3 and a side wall of the first shell 1. When the lock catch structure 3 is extruded, a volume would be changed, and therefore the deformation space should be reserved.

(13) Alternatively, the lock catch structure 3 is a columnar hollow structure and made of Thermoplastic Polyurethanes (TPU) having Shore hardness within a preset range. The TPU has outstanding integrated performances, such as high strength, high toughness, abrasion resistance and oil resistance and good processing performance. Alternatively, the lock catch structure 3 may be connected with the first shell 1 through blanching, nano-scale processing, double-shot molding and other processes.

(14) By referring to FIG. 1, FIG. 3 and FIG. 4, a first through hole 5 is formed by the lock catch structures 3 and includes a first round hole 501 with a first diameter and a second round hole 502 with a second diameter; herein, the first round hole 501 is coaxial and connected with the second round hole 502. A damping plate 6 and a compression part 7 are sequentially arranged in a direction facing the first shell 1 in the first through hole 5, and the first through hole 5 is connected with the damping plate 6 in a clamping way. The compression part 7 is located at one end of the first round hole 501 facing the first shell 1. The compression part 7 may be extruded when the damping plate 6 is subjected to an external force, thereby making the compression part 7 deformed.

(15) Herein, the second diameter is less than the first diameter, so that the compression part 7 is stuck. The second round hole 502 is located at one end of the lock catch structure 3 facing the first shell 1.

(16) Alternatively, the damping plate 6 is hard and made of polycarbonate or polyformaldehyde.

(17) The compression part 7 is soft and made of silica gel.

(18) By referring to FIG. 4, FIG. 5 and FIG. 6, a first clamping part 5011 is formed on an inner wall of the first round hole 501, and the damping plate 6 has a second clamping part 601. The first clamping part 5011 and the second clamping part 601 are clamped with each other, thereby forming a clamping structure. The damping plate 6 is stuck in the first round hole 501. When installing the damping plate 6, it is only needed to compress the second clamping part 601 of the damping plate 6 into the first clamping part 5011 through the external force.

(19) A second through hole matching with a self-tapping screw 8 is formed by the damping plate 6 and the compression part 7. The second shell 2 is provided with a self-tapping stud 4 matching with the self-tapping screw 8. A rigid connection of the self-tapping screw 8 with the self-tapping stud 4 is formed through the second through hole, in this way the first shell 1 is connected with the second shell 2. When installing the self-tapping screw 8, the self-tapping stud 4 is inserted into the second through hole first, and the self-tapping screw 8 is screwed into the self-tapping stud 4, thereby forming the rigid connection. The first shell 1 is connected with the second shell 2 by driving the first shell 1 via the lock catch structure 3 and driving the second shell 2 via the self-tapping stud 4.

(20) By continuously referring to FIG. 6, the rigid connection transfers a pressure to the damping plate 6 when the first shell 1 or the second shell 2 is subjected to the pressure facing the inside of the shell structure, and the second clamping part 601 is departed from the first clamping part 5011 when the pressure reaches a preset threshold. The damping plate 6 compresses the compression part 7, thereby making the compression part 7 deformed, and accordingly damping the pressure which faces the inside of the shell structure on the first shell 1 or the second shell 2. In this way, the touch screen is prevented from damaging due to transfer of the pressure to the touch screen. The stability of the lock catch structure 3 is determined by the clamping structure formed by the first clamping part 5011 and the second clamping part 601. In case of drop impact, an instantaneous load of the clamping structure exceeds a preset threshold, and the second clamping part 601 is departed from the first clamping part 5011.

(21) Alternatively, an avoiding space allowing deformation of the compression part 7 is formed between the first round hole 501 and the compression part 7, and a damping gap allowing deformation of the compression part 7 is formed between the damping plate 6 and the compression part 7. Through arranging the damping gap and the avoiding space, a damping effect of the compression part 7 may be improved effectively.

(22) Alternatively, the first clamping part 5011 is a bulge structure which is located on a side surrounding part of the damping plate 6, and the second clamping part 601 is a groove structure matching with the first clamping part 5011. Specifically, a bearable static load between the first clamping part 5011 and the second clamping part 601 may be set as 150 Newtons (N), namely the lock catch structure 3 within 150N due to support by the clamping structure.

(23) By continuously referring to FIG. 1, an embodiment of the present application further provides a terminal device which includes the above-mentioned shell structure; herein, the terminal device may be a smart phone or a tablet PC and so on.

(24) Alternatively, the terminal device further includes a touch screen 9 which is fixedly connected with the second shell 2 of the shell structure.

(25) Through providing the damping plate 6 and the compression part 7 which are departed from each other in the lock catch structure 3, the shell structure and the terminal device provided by the present application may effectively damp an external impact to which the shell structure is subjected, thereby avoiding losses due to breaking of the touch screen 9 when the touch screen 9 is subjected to the impact. The present application has simple fabricating process and low manufacturing cost, and may improve reliability and user experiences of the terminal device and generate a high economic value added.

(26) The above are alternative implementation modes of the present application. It is to be noted that those of ordinary skill in the art may make various improvements and revisions without departing from the concept of the present application, and these improvements and revisions shall also fall within the protection scope of the present application.

INDUSTRIAL APPLICABILITY

(27) The above-mentioned scheme has simple fabricating process and low manufacturing cost, and may improve reliability and user experiences of the terminal device and generate a high economic value added.