Abstract: A battery cover assembly includes a battery cover (3) defining a pair of guide rails (326) therein, a connecting member (2), a housing (1) defining a receiving slot (164) and at least a battery-receiving compartment (194), a plurality of springs (5), and an antenna rod (4). The connecting member is slidingly received in the guide rails along a lateral direction, and the antenna rod inserts into the receiving slot through the connecting member and the springs such that the battery cover can rotate about the antenna rod. When the battery cover is rotated downwardly to the housing, a force is required to press the battery cover down upon the housing, and then inwardly along a direction toward the antenna rod until locking projections (302) on the cover catch in troughs (182) defined in the housing.

Abstract: A hinge (300) includes a cam (32), a cam follower (30), a torsional spring (31), and a can (33). The cam includes a round flange (321), with a notch (321b) defined therein. The cam follower connects with the cam, and includes an engaging ring (301) around an open end thereof and a projection (303) on an inner wall thereof. The projection is removably engaged in the notch of the cam. The spring is twisted and attached in the cam follower, with one end fixed on the cam follower and the other end fixed on the cam. The can defines a groove (334) rotatably receiving the engaging ring of the cam follower, and a guiding hole (335) movably receiving the cam. The hinge has a relatively simple and stable unified structure.

Abstract: A replaceable panel device has a panel (20), a locking subassembly (30) and a top cover (40). The panel is mounted on the top cover by the locking subassembly. The panel has a mounting hole (24) with a first arc groove (244). The locking subassembly is accommodated in the mounting hole of the panel and has a button (31) with a locking portion (314) and a spring (32). Two ends of the spring respectively contact with a particular portion of the mounting hole and the button. The top cover has a second arc groove (45) which corresponds with the first arc groove of the panel. The locking portion of the button passes through the first groove of the panel and the second groove of the top cover, and mates with the second arc groove by a return force of the spring to fix the panel and the top cover together.

Abstract: A battery cover assembly includes a battery cover (3) defining a pair of guide rails (326) therein, a connecting member (2), a housing (1) defining a receiving slot (164) and a battery-receiving compartment (194), a plurality of springs (5, 7), a plurality of sheaths (6), and an antenna rod (4). The connecting member is engaged with the sheaths and is loosely received in the guide rails along a lateral direction. The antenna rod inserts into the receiving slot through the connecting member, the sheaths, and the springs such that the battery cover can rotate about the antenna rod. When the battery cover is rotated downwardly to the housing, a force is required to press the battery cover down upon the housing, and then inwardly along a direction toward the antenna rod until locking projections (302) on the cover catch in troughs (182) defined in the housing.

Abstract: A screw cover (100) includes a cap (10) made of stretchable material, and a post (20) covered by the cap. The cap includes an end (12) having a round opening (122). A diameter of the end is slightly less than or the same as a diameter of a screw hole (32). The post includes a top column (22). A diameter of the top column is slightly greater than a diameter of the opening, so that the post is engaged in the opening. The diameter of the end is thus expanded to be slightly greater than the diameter of the screw hole, so that the screw cover can be secured in the screw hole. In disassembly, the top column is pushed so that the post moves down, and the diameter of the end returns to its original size. The screw cover can then be easily dropped out from the screw hole.

Abstract: A hinge (300) includes a cam (32), a cam follower (30), a torsional spring (31), and a can (33). The cam includes a round flange (321), with a notch (321b) defined therein. The cam follower connects with the cam, and includes an engaging ring (301) around an open end thereof and a projection (303) on an inner wall thereof. The projection is removably engaged in the notch of the cam. The spring is twisted and attached in the cam follower, with one end fixed on the cam follower and the other end fixed on the cam. The can defines a groove (334) rotatably receiving the engaging ring of the cam follower, and a guiding hole (335) movably receiving the cam. The hinge has a relatively simple and stable unified structure.

Abstract: A replaceable panel device has a panel (20), a locking subassembly (30) and a top cover (40). The panel is mounted on the top cover by the locking subassembly. The panel has a mounting hole (24) with a first arc groove (244). The locking subassembly is accommodated in the mounting hole of the panel and has a button (31) with a locking portion (314) and a spring (32). Two ends of the spring respectively contact with a particular portion of the mounting hole and the button. The top cover has a second arc groove (45) which corresponds with the first arc groove of the panel. The locking portion of the button passes through the first groove of the panel and the second groove of the top cover, and mates with the second arc groove by a return force of the spring to fix the panel and the top cover together.

Abstract: An enclosure (100) for a portable electronic device includes: a panel (120) having a number of tabs (1231), and defining a lock hole (129) bounded by an inner wall (1291); a housing (150) having a number of tab slots (156) corresponding to the tabs of the panel; and a handle (130) configured to fit in the lock hole. The panel is attached on the housing by the tabs being received in the corresponding tab slots, and the handle is contained in the lock hole and is rotatably connected to the inner wall. Thus the handle can be opened or closed relative to the panel. A user can manually rotate the handle to the open position and then pull up the panel using the handle. There is no need for a special tool, making it convenient to change the panel.

Abstract: A battery cover assembly includes a battery cover (3) defining a pair of guide rails (326) therein, a connecting member (2), a housing (1) defining a receiving slot (164) and a battery-receiving compartment (194), a plurality of springs (5, 7), a plurality of sheaths (6), and an antenna rod (4). The connecting member is engaged with the sheaths and is loosely received in the guide rails along a lateral direction. The antenna rod inserts into the receiving slot through the connecting member, the sheaths, and the springs such that the battery cover can rotate about the antenna rod. When the battery cover is rotated downwardly to the housing, a force is required to press the battery cover down upon the housing, and then inwardly along a direction toward the antenna rod until locking projections (302) on the cover catch in troughs (182) defined in the housing.

Abstract: A battery cover assembly includes a battery cover (3) defining a pair of guide rails (326) therein, a connecting member (2), a housing (1) defining a receiving slot (164) and at least a battery-receiving compartment (194), a plurality of springs (5), and an antenna rod (4). The connecting member is slidingly received in the guide rails along a lateral direction, and the antenna rod inserts into the receiving slot through the connecting member and the springs such that the battery cover can rotate about the antenna rod. When the battery cover is rotated downwardly to the housing, a force is required to press the battery cover down upon the housing, and then inwardly along a direction toward the antenna rod until locking projections (302) on the cover catch in troughs (182) defined in the housing.