Patent Publication Number: US-2012033360-A1

Title: Electronic device assembly

Description:
BACKGROUND 
     1. Technical Field 
     The present disclosure relates to electronic device assemblies, more particularly an electronic device assembly, which automatically controls the power supply to a display of the electronic device assembly. 
     2. Description of Related Art 
     Nowadays, electronic devices, such as mobile phones, and personal digital assistants, are in high demand. Usually, the electronic device is accommodated in an enclosure for preventing damage. However, the power supplied to the electronic device cannot be automatically turned off when accommodated in the enclosure if the electronic device is not used for some time, so the power is often wasted. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of the embodiments can be better understood with references to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. 
         FIG. 1  is a diagram view of an electronic device assembly in accordance with an embodiment. 
         FIG. 2  is an exploded, isometric view of an electronic device assembly in accordance with an embodiment. 
         FIG. 3  is an assembled view of  FIG. 2 , and shows a cover in a second position. 
         FIG. 4  is similar to  FIG. 3 , but shows the cover in another position. 
         FIG. 5  is similar to  FIG. 3 , but shows the cover in a first position. 
     
    
    
     DETAILED DESCRIPTION 
     The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one. 
     Referring to  FIGS. 1 and 2 , an electronic device assembly in accordance with an embodiment includes an electronic device  10  and an enclosure  30  configured for receiving the electronic device  10 . In one embodiment, the electronic device  10  may be, for example, a mobile phone or a personal digital assistant. 
     The electronic device  10  includes a display  15  for displaying information and a power supply  17  for supplying power to the electronic device  10 . A sensor  11  and a controlling module  13  are disposed in the electronic device  10 . The controlling module  13  is electronically connected to the sensor  11 . The sensor  11  can transmit signals to the controlling module  13  when in a predetermined magnetic field. In one embodiment, the sensor  11  is secured to a corner of the electronic device  10 . 
     The sensor  11  may be, for example, a reed switch. The reed switch is an electrical switch operated by an applied magnetic field. It consists of a pair of contacts on ferrous metal reeds in a hermetically sealed glass envelope. The contacts may be normally open, closing when a magnetic field is present, or normally closed and opening when a magnetic field is applied. The switch may be actuated by a coil, making a reed relay, or by bringing a magnet near to the switch. Once the magnet is pulled away from the switch, the reed switch will go back to its original position. 
     The controlling module  13  is used to turn on/off power provided by the power supply  17  to the display  15  and the electronic device  10 , when the controlling module  13  is received in the signals from the sensor  11 . 
     The enclosure  30  includes a bottom  31 , a connecting portion  33  connected to an edge of the bottom  31 , and a cover  35  rotatably connected to the connecting portion  13 . In one embodiment, the electronic device  10  is placed on the bottom  31 . A controller  40  is attached to the cover  35 , corresponding to the sensor  11 . The controller  40  can generate a magnetic field. In one embodiment, the controller  40  is a permanent magnet. 
     Referring to  FIGS. 3-5 , the electronic device  10  is placed on the bottom  31 , and the cover  35  can be rotated relative to the electronic device  10  between a first position (shown in  FIG. 5 ), and an second position (shown in  FIG. 3 ). In the first position, the cover  35  covers the electronic device  10 . The sensor  11  is located below the controller  40  and positioned in an area of the greatest magnetic force of the predetermined magnetic field, which is generated by the controller  40 . In the second position, the cover  35  is located such that the electronic device  10  is exposed, the sensor  11  is away from the controller  40  and positioned in a least magnetic force of the predetermined magnetic field. 
     When the electronic device  10  is not used, the cover  35  is rotated down from the second position to the first position. The sensor  11  is moved in the predetermined magnetic filed from the least magnetic force area to the greatest magnetic force area, and thereby transmitting a first signal to the controlling module  13 . The power of the display  15  or the electronic device  10  is turned off when the controlling module  13  receives the first signal. 
     In use, the cover  35  is rotated up from the first position to the second position, and the sensor  11  is moved away from the predetermined magnetic filed from the greatest magnetic force area to the least magnetic force area. Thereby the sensor  11  transmits a second signal to the controlling module  13 . Therefore, the power of the display  15  or the electronic device  10  is turned on when the controlling module  13  receives the second signal. 
     It is to be understood, however, that even though numerous characteristics and advantages have been set forth in the foregoing description of embodiments, together with details of the structures and functions of the embodiments, the disclosure is illustrative only and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.