Mobile phone and memory card fixing device thereof

A memory card fixing device including a base and two resilient fastening structures is disclosed. The resilient fastening structures are provided at the two opposite sides of the base. Each fastening structure has a guiding portion and a recess. A memory card slides into the recess along the guiding portion and can be fixed in the recess by the resilience of the fastening structures.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims priority of Taiwan Patent Application No. 096133222, filed on Sep. 6, 2007, the entirety of which is incorporated by reference herein.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a fixing device and, more particularly, to a memory card fixing device for a mobile phone.

2. Description of the Related Art

Please refer toFIG. 1. A conventional memory card fixing device for a mobile phone mainly includes a foundation10and a rotating part20which is pivotally connected to the foundation10through a pivot21. When a user wants to place a memory card, he can make the rotating part20slide along the Y axis and turn upward (as shown by the arrow direction inFIG. 1). Then, the memory card can be put into a slot22of the rotating part20, and then the rotating part is closed to make the memory card electrically connected with a connector11of the mobile phone.

However, the conventional memory card fixing device has a complex design and a high cost, and the replacement of the memory card is also not convenient. Therefore, how to provide a preferred memory card fixing device becomes an important subject.

BRIEF SUMMARY OF THE INVENTION

One embodiment of the invention provides a memory card fixing device including a base and two resilient fastening structures which are provided at the two opposite sides of the base and are roughly symmetrical about a central axis of the base. Each fastening structure has a guiding portion a holding portion which forms a recess. The memory card slides into the recess along the guiding portion and is fixed in the recess via the resilience of the fastening structure.

In one preferred embodiment, the memory card fixing device is roughly-shaped.

In one preferred embodiment, the fastening structure is made of material.

In one preferred embodiment, the base is made of material.

In one preferred embodiment, the fastening structure and the base are integrally formed.

In one preferred embodiment, the memory card fixing device is a stainless steel sheet.

In one preferred embodiment, each fastening structure further includes a bearing portion which is connected to the base and the holding portion, wherein the bearing portion extends toward the central axis from the external side of the base to bear the memory card.

In one preferred embodiment, each fastening structure further includes a bending portion which is connected to the guiding portion and the holding portion, wherein the a first opening is formed between the bending portions of the two fastening structures, and the width of the first opening is less than the width of the memory card.

In one preferred embodiment of the invention, a second opening is formed between the bearing portions of the two fastening structures, and the width of the second opening is less than the width of the first opening.

The invention provides a memory card fixing device which not only has advantages such as low costs and convenient to use, but also can be widely applied to mobile phones or other electronic devices with memory cards.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Please refer toFIG. 2andFIG. 3simultaneously. The memory card fixing device40of the embodiment can be provided in a mobile phone to fix a memory card S in a mobile phone and make the memory card S electrically connected to a connector30in the mobile phone (as shown inFIG. 3). The memory card S in the embodiment is, for example, a subscriber identity module (SIM) card.

As shown inFIG. 2, the memory card fixing device40is, for example, an integrally formed stainless steel sheet and mainly includes a base41and two resilient fastening structures42. The two fastening structures42are roughly symmetrical about a central axis C of the base41and extend upward from the two sides of the base41, respectively, to make the memory card fixing device40be-shaped roughly. However, the base41and the fastening structures42also can be made of other metals or flexible material besides the stainless steel. In addition, the base41and the fastening structure42can be connected to each other in a sticking manner or in an assembling manner to form the memory card fixing device40.

InFIG. 2, each fastening structure42has a guiding portion43, a bending portion44, a holding portion45and a bearing portion46, respectively. The bending portion44is connected to the guiding portion43and the holding portion45. The bearing portion46is connected to the base41and the holding portion45, wherein the bearing portion46extends toward the central axis C from the external side of the base41to support the memory card S. A first opening44′ is formed between the bending portions44of the two fastening structures42, and a second opening46′ is formed between the bearing portions46′ of the two fastening structures42, wherein the width W2of the second opening46′ is less than the width W1of the first opening44′.

Please refer toFIG. 3. In the embodiment, the memory card fixing device40is fixedly connected to a connector30in a mobile phone. When the memory card S needs to be placed, it can be pressed downward from the upper side of the memory card fixing device40. Since the width of the first opening44′ is slightly less than the width of the memory card S, the memory card contacts with the guiding portions43and makes the two fastening structures42open outward (as shown by the arrow direction inFIG. 3) in the process of pressing the memory card. The memory card S can slides into the recess45′ formed by the holding portion45along the inclined plane of the guiding portions43. The memory card S can be fixed in the recess45′ formed by the holding portion45via the resilience of the right and left two fastening structures42(as shown inFIG. 4), so that the memory card S can be electrically connected to the connector30steadily. On the contrary, when the memory card S needs to be taken out, a user can manually make the right and left two fastening structures42open outward to make the width W1of the first opening44′ slightly greater than the width of the memory card S. At that moment, the bearing portions46at the bottom side of the recess45′ can push the memory card S out of the first opening44′ upward to make the memory card S separated from the memory card fixing device40.

To sum up, the embodiment invention provides a memory card fixing device which not only has advantages such as low cost and convenient to use, but also can be widely applied to mobile phones or other electronic devices with memory cards.