CN201008172Y

CN201008172Y - Double cover mobile phone

Info

Publication number: CN201008172Y
Application number: CNU2006201675861U
Authority: CN
Inventors: 陆维佳; 盛信华; 刘伟; 王林; 朱保玉
Original assignee: Lenovo Mobile Communication Technology Ltd
Current assignee: Motorola Mobile Communication Technology Ltd
Priority date: 2006-12-20
Filing date: 2006-12-20
Publication date: 2008-01-16
Anticipated expiration: 2016-12-20

Abstract

The utility model discloses a mobile phone with two caps comprising an upper cap, a lower cap, a receiver, a sound-outlet arranged on the upper cap and a sound cavity which is communicated with a sound-outlet hole, wherein the receiver is provided on the joint portion of the upper cap and the lower cap. When the upper cap and the lower cap are in a state of opening, the receiver is positioned on the other outlet side of the sound cavity and the broadcasting direction of the sound of the receiver faces the sound cavity directly. Through the mobile phone with two caps provided by the utility model, the receiver is provided on the joint portion of the upper cap and the lower cap, thereby compared to the design of conventional mobile phone with two caps, the utility model has the advantages that the design of mobile phone is closer to main board, and when a mobile phone is in the state of using, the utility model can transmit sound which comes out from the receiver to users relatively well through the sound cavity and the sound outlet hole.

Description

Double-cover mobile phone

Technical Field

The utility model relates to a mobile phone design, in particular to double-cover mobile phone.

Background

A dual-cover handset is a common design in handset designs. As shown in fig. 1, a dual-cover mobile phone generally includes a lower cover 11 and an upper cover 12, and a Receiver 21 is provided on the upper cover. Usually, a main board (not shown) of the mobile phone is located in the lower cover, and the upper cover further includes an audio cable 23 connecting the receiver 21 and the main board in order to transmit an audio signal from the main board to the receiver. In such a design, the audio line is long, and is easily interfered by other signals, which results in a reduction in sound quality. For a mobile phone with a transparent or semitransparent upper cover, the design can also bring aesthetic problems.

Disclosure of Invention

The to-be-solved technical problem of the present invention is to provide a dual-cover mobile phone, so that the receiver of the mobile phone is close to the main board and the sound emitted from the receiver can be better transmitted to the user when the mobile phone is used.

The utility model provides a double-cover mobile phone, including upper cover, lower cover, receiver and audio line, still including the sound chamber that is located the play sound hole of upper cover and communicates with a play sound hole, the receiver is located the joint portion of upper cover and lower cover, is in the open mode when upper cover and lower cover, and the receiver is located the other end outlet side in sound chamber.

Further, when the upper cover and the lower cover are in an open state, the sound playing direction of the telephone receiver is opposite to the sound cavity.

Still further, in the above-mentioned patent document,

the upper cover and the lower cover can be connected through a rotating shaft, and the telephone receiver is positioned on the rotating shaft.

Furthermore, the middle part of the rotating shaft is connected with the upper cover, the two ends of the rotating shaft are connected with the lower cover, and the receiver is positioned in the middle part of the rotating shaft. The receiver is sealed with the sound cavity wall.

Or,

the middle part of the rotating shaft is connected with the lower cover, two ends of the rotating shaft are connected with the upper cover, and the telephone receiver is located in the middle part of the rotating shaft.

The sound cavity of the double-cover mobile phone can be in a cone shape, a cylinder shape, a cuboid shape or a quadrangular frustum.

The utility model provides a double-cover mobile phone, receiver are located the joint position of upper cover and lower cover to compare more near the mainboard with the design of current double-cover mobile phone, when the cell-phone is in the user state, can convey the user better with the sound that the receiver sent through sound chamber and play sound hole.

By realizing the shape of the sound cavity as a specific shape, sound passing through the sound cavity may be amplified or filtered.

Furthermore, the telephone receiver is close to the mainboard, so that the length of an audio line connecting the telephone receiver and the mainboard can be reduced, the interference of other signals is reduced, and the quality of sound signals is improved. For the double-cover mobile phone with the transparent upper cover, the audio line basically does not need to pass through the upper cover, so that the design of the upper cover cannot be influenced by the audio line, and the more attractive double-cover mobile phone can be designed.

Drawings

FIG. 1 is a schematic diagram of a prior art dual-cover handset;

fig. 2 is a schematic view of an embodiment of the present invention;

fig. 3 is a perspective view of a mobile phone according to another embodiment of the present invention in a closed state;

fig. 4 is a perspective view of the mobile phone of fig. 3 according to the present invention in an opened state.

Detailed Description

Referring to fig. 2, it is a schematic diagram of an embodiment of the dual-cover mobile phone of the present invention. In this embodiment, the upper cover 12 and the lower cover 11 are coupled by a rotating shaft, wherein the middle portion of the rotating shaft 25 is coupled to the upper cover and both ends of the rotating shaft are coupled to the lower cover. The receiver 21 is located at the middle portion of the hinge, and the audio line 22 may be connected to the main board through the hinge. The top cover of the handset has a sound outlet 24, which can be located at the position of the receiver in the existing handset, such as the receiver position shown in fig. 1. The sound outlet hole can also be located at other positions of the upper cover if required. The receiver and the sound outlet are communicated through a sound cavity 23. The sound outlet hole is positioned at one end of the sound cavity, the receiver is positioned at the outlet side of the other end of the sound cavity and is sealed with the wall of the sound cavity, and the sound broadcasting direction of the receiver basically faces the sound cavity. The sound cavity shown in this embodiment is a cone, but may be other shapes, such as a cylinder, a rectangular parallelepiped with chamfered edges, or a rectangular frustum. The cavity has its acoustic response and a certain gain, and a specially shaped cavity can be used to amplify or filter the sound passing through the cavity. The design of the sound outlet holes should be smooth and smooth to avoid sharp corners and acute angles.

In another embodiment of the present invention, the middle portion of the rotating shaft is connected to the lower cover, the two ends of the rotating shaft are connected to the upper cover, the receiver is located in the middle portion of the rotating shaft, and the upper cover has a sound outlet and a sound cavity communicating with the sound outlet. When the mobile phone is used, the upper cover and the lower cover are in an open state, the receiver is positioned at the outlet side of one end of the sound cavity far away from the sound outlet hole, and the sound playing direction of the receiver is basically opposite to the sound cavity. The shape of the end of the sound cavity close to the receiver is well matched with that of the receiver, so that sound emitted by the receiver can better enter the sound cavity and is conducted to the sound outlet hole. When the upper cover and the lower cover are closed, the position relation between the sound cavity and the receiver when the mobile phone is in an open state does not need to be kept.

In the above two embodiments, the receivers are located in the middle of the rotating shaft, but the receivers may also be located at the two ends of the rotating shaft, or located at other combining positions between the lower cover and the upper cover, and the purpose of the present invention can also be achieved.

Fig. 3 and 4 show perspective views of a closed and open position of another embodiment of the present invention. In this embodiment, the receiver is located at a position of the upper cover combined with the lower cover, and the sound outlet is located at a position away from the lower cover when the upper cover is in the open state. The telephone receiver is communicated with the sound outlet hole through the sound cavity, and the sound outlet hole is positioned on the side face of one end of the sound cavity. The sound cavity has a quadrangular frustum pyramid shape, a closed space is formed by the sound cavity and the receiver, and the sound broadcasting direction of the receiver and the central line of the sound cavity are approximately positioned in the same direction.

Because the telephone receiver is positioned at the joint of the upper cover and the lower cover, compared with the position of the telephone receiver in the existing mobile phone design, the telephone receiver is closer to the main board, thereby reducing the length of an audio line and reducing the interference of other signals. And through the design of the sound cavity and the sound outlet hole, the sound emitted by the telephone receiver can better reach a user.

The audio line is close to the mainboard, and the communication quality can be improved by carrying out circuit packet ground, isolation or filtering measures on the audio line. The circuit ground covering means that the mobile phone board adopts multilayer wiring, a circle of ground wire is arranged around the same layer of audio wiring, the upper layer and the lower layer are adjacent, and the large-area ground is paved at the position of the audio wiring. Isolation means that the audio traces, near the same layer and in adjacent layers perpendicular to the circuit board, cannot trace high speed signal lines parallel to the audio lines, such as radio frequency lines and clock lines. The filtering is to filter small high-frequency interference signals by using a capacitor with small capacity.

It should be noted that the dual-cover mobile phone of the present invention includes a flip phone, a slide phone, a swivel phone, and other mobile phones with dual covers. The receiver can be positioned on a rotating shaft connecting the upper cover and the lower cover, or positioned on other combining parts of the upper cover and the lower cover.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A double-cover mobile phone comprises an upper cover, a lower cover and a receiver, and is characterized by further comprising a sound outlet hole and a sound cavity which are located in the upper cover, wherein the sound outlet hole is communicated with one end of the sound cavity, the receiver is located at a joint of the upper cover and the lower cover, and when the upper cover and the lower cover are in an open state, the receiver is located at the outlet side of the other end of the sound cavity.

2. The dual-cover cellular phone of claim 1, wherein when the upper cover and the lower cover are in the open state, a sound broadcasting direction of the receiver is directed to the sound chamber.

3. The dual-cover mobile phone of claim 1 or 2, wherein the upper cover and the lower cover are connected by a hinge, and the receiver is located on the hinge.

4. The dual-cover mobile phone of claim 3, wherein the middle portion of the rotation shaft is connected to the upper cover, both ends of the rotation shaft are connected to the lower cover, and the receiver is located at the middle portion of the rotation shaft.

5. The dual-cover handset of claim 4, wherein the receiver is sealed from the cavity wall.

6. The dual-cover mobile phone of claim 3, wherein the middle portion of the rotation shaft is connected to the lower cover, both ends of the rotation shaft are connected to the upper cover, and the receiver is located at the middle portion of the rotation shaft.

7. A double-cover handset as claimed in claim 1 or 2, wherein the sound cavity is a cone, a cylinder, a cuboid or a truncated pyramid.

8. The dual-cover mobile phone of claim 1 or 2, wherein the audio line connecting the receiver and the main board is an audio line passing through a circuit package ground and/or an isolation.