Abstract: A microminiaturized antenna feed module includes a substrate, a plurality of coupled feed portions, and an active circuit. The substrate defines a plurality of visa penetrating the substrate. The coupled feed portions, made of conductive material and have different coupling areas, are electrically connected to the active circuit through the holes, to feed in electrical signals, the coupled feed portions couple the electrical signals to the metal frame to radiate wireless signals; the active circuit controls the switching of radiation modes of the metal frame. The application also provides an electronic device with the microminiaturized antenna feed module.

Abstract: An electronic device includes a metal frame, a middle frame, and at least one antenna feed module. The metal frame includes an upper metal frame, a first side metal frame, a bottom metal frame, and a second side metal frame sequentially connected. The middle frame, spaced apart from the first side metal frame and the second side metal frame, forms a slit, the at least one antenna feed module is received in the slit.

Abstract: An antenna coupled feed module is received in a slit formed between a metal frame and at least one electronic component of an electronic device. The antenna coupled feed module includes a substrate, at least one coupled feed portion, an active circuit, a metal layer, and a non-conductive layer. The coupled feed portion and the active circuit are disposed on opposite surfaces of the substrate; the coupled feed portion couples the electrical signals to the metal layer, the metal layer conducts the electrical signals to the metal frame to radiate wireless signals; the non-conductive layer is arranged between the metal layer and the at least one coupled feed portion, and covers the coupled feed portion; the active circuit switches the electrical signals fed to the coupled feed portion. An electronic device with the antenna coupled feed module is also provided.

Abstract: A foldable electronic device (100) has at least two components hinged together by a hinge assembly. The foldable electronic device includes: a cover (10), a rotating element (20), an elastic element (30) and a frame (40), a set of magnetic elements (50) and a body (60). The rotating element has two notches defined therein. The elastic element has a latching portion. The elastic element is fixed in the rotating element. The frame slidably engages with the rotating element. The frame is engaged with the cover. The rotating element rotatably connects with the body. The magnetic elements make the cover close relative to the body. When the latching portion of the rotating element engages in different notches of the rotating element, magnetic force between the magnetic elements decreases so as to open the cover relative to the body.

Abstract: A battery cover latching mechanism (300) is used in a portable electronic device. The portable electronic device has a housing (10) and a battery cover (20). The battery cover latching mechanism comprises a fixing portion (206) formed on the battery cover, a locking member (30) and a switch (40). The locking member is mounted on the housing and slidable between a first position where the locking member engages with the housing and the battery cover and a second position where the locking member detaches with the housing and the battery cover relative to the housing. The switch is rotatably mounted on the housing. The switch engages with the locking member. The rotation of the switch urges the locking member to slide from the first position to a second position.

Abstract: A SIM card holder includes a base (10) and a catching mechanism (20). The base defines a receiving groove (114) and a slot (110). The receiving groove is configured for receiving the SIM card therein. The base comprises a protrusion (108). The protrusion and the slot are arranged at two opposite sides of the receiving groove. The catching mechanism comprises a main board (201) having a bending piece (202) and a bending hem (204) at two opposite ends thereof. The bending hem is engaged in the slot. The bending piece is engagable with the base so as to lock the SIM card in the receiving groove. The main board comprises an elastic slice resisting the protrusion when the bending piece is engaged with the base.

Abstract: A hinge mechanism includes a shaft (1), a cam follower (12), a cam (2), an antifriction member (3), a washer (4) and an elastic member (5). The cam follower is fixed relative to the shaft and has a cam follower surface. The cam has a cam surface (24) and a cam hole defined therein. The cam is rotatable relative to the cam follower. The shaft runs through the cam, the washer and the elastic member, in turn. The antifriction member has one end touching the cam and an opposite end touching the washer. The cam surface abuts against the cam follower surface due to the elastic force of the elastic member. As the friction coefficient between the antifriction member and washer is smaller than that between the cam and the washer, the hinge mechanism generates a smaller friction therebetween, so the waste of energy is very small.

Abstract: A chip card retaining mechanism for retaining a chip card (30) mounted in an electronic device is provided. The electronic device includes a housing (10) having a battery compartment (12) defined therein. The chip card retaining mechanism includes a receiving cavity (14) formed on the housing for receiving the chip card therein, and a locking member (20). The receiving cavity has an opening facing the battery compartment of the electronic device. The locking member is movably received in the receiving cavity with a first end thereof extending out of the opening. The locking member includes a resisting portion. The resisting portion is configured for abutting a first end of the chip card. The locking member configured for locking the chip card in the receiving cavity.

Abstract: A hinge assembly (10) includes a shaft (400), a barrel portion (200), and a plurality of roll elements (300). The shaft has an outer screw thread (404) formed at one end thereof. The barrel portion has an inner screw thread (207) and a groove (210) formed in the inner surface thereof. The inner screw thread is threadingly engaged with the outer screw thread of the shaft. The roll elements are received in the groove of the barrel portion and are rotatable relative to the shaft and the barrel portion.

Abstract: A hinge mechanism includes a shaft having an outer screw thread, a rotating cam, a rotating cam having an inner screw thread, a first elastic element, a sleeve having a latching block, a second elastic element, an anchoring block, and a button having a post. The driven cam defines two symmetrical latching grooves. The anchoring block defines a first hole and a second hole. The shaft extends through the rotating cam, the driven cam, the first elastic element, the sleeve, the second elastic element, and the first hole of the anchoring block. The outer screw thread of the shaft engages with the inner screw thread of the rotating cam. The latching block of the sleeve is slidably received in the latching grooves of the driven cam. The post of the button extends through the second hole of the anchoring block and abuts against an end of the sleeve.

Abstract: A hinge mechanism (20) includes a mounting member (12), at least one retractable elastic shaft (14) and a rotating member (18). The retractable elastic shaft has two opposite ends. The mounting member is located at one end of the retractable elastic shaft and defines at least one first hollow (125). The rotating member is located at the other end of the retractable elastic shaft and defines at least one second hollow (187). The first and second hollows respectively receive two ends of the retractable elastic shaft. The mounting member is rotatable relative to the rotating member to drive the retractable elastic shaft to move between a first position where the retractable elastic shaft is slantwise to an axis of the rotating member and a second position where the retractable elastic shaft is parallel to the axis of the rotating member. The hinge mechanism is easy to be manufactured.

Abstract: A hinge assembly for joining a cover to a main body of a folding phone, includes a housing (1), a cam (2), a cam follower (3), a spring (4), and an end cover (5). The cam and the cam follower are received in the housing with a connector (21) of the cam extending through a rear end (11) of the housing. The cam follower has a cylindrical main body (30) with a protrusion (31) extending from each opposite end thereof. The cylindrical main body can move along a cam surface (20) of the cam for being received in valleys (22) of the cam surface while the protrusions sliding in the housing. The end cover is inserted into the housing for locking the hinge components in the housing. The spring is compressively coupled between the cam follower and the end cover.

Abstract: A method for treating a hinge holder includes the following steps: polishing a surface of the hinge holder; degreasing the hinge holder; cleaning the hinge holder; baking the hinge holder; cooling the hinge holder; screen-printing a part of the surface of the hinge holder; and plating the other part of the surface of the hinge holder with chromium or a chromium-containing compound. The plated hinge holder has a layer of chromium or chromium nitride on the surface, which renders the surface of the hinge holder more attractive and more wear-resistant. Therefore, it is not as easily scratched during assembly and frequent use.

Abstract: A hinge assembly includes a body drive member (10) having an outer screw thread (12) on an outer periphery thereof, a cover drive member (20) having a first end surface (28) formed one end thereof, a follower (30) having a second end surface (34) formed on one end thereof, and an elastic element (40) abutting the follower. The cover drive member has an inner screw thread (26) formed in a cavity (22) of the cover drive member. The follower has a central hole (32). The body drive member extends through the cover drive member, the follower and the elastic element, thereby integrating the hinge assembly into a complete unit. The outer screw thread of the body drive member engages with the inner screw thread of the cover drive member, and the first end surface of the cover drive member engaging with the second end surface of the body drive member.

Abstract: A hinge assembly (10) includes a tubular hinge housing (11) encasing a follower member (14), a cam (13) and a spring (12) in an interior space thereof. The follower member has a connector (141), a shaft (143), and a cylindrical portion (142) having a flat surface (1421) and at least one tab (1424) formed on the flat surface. The cam forms at least one peak (1321) and one valley (1322) thereon. The cam and the spring are respectively inserted over the follower member. Wherein the cam is sildably engaged in the hinge housing, and is rotatably and sildably coupled to the shaft of the follower member so that the tab of the follower member is received in the valley of the cam. An insert member (15) is inserted into the interior space of the tubular hinge housing for retaining the follower member therein.

Abstract: A hinge assembly (1) includes a housing (10) encasing a rotating mechanism (30) and an elastic plate (40) therein, with an open end (12) of the housing being covered by an end cover (50). The rotating mechanism has a cam portion (32), and a connector (31) and a shaft (33) located at opposite ends of the cam portion. The connector rotatably extends through a hole (51) of the end cover. The rotating mechanism is rotatably engaged in the housing, with the shaft being rotatably received in a bushing (13) inside the housing. The cam portion has an arcuate cam surface (322) defining at least one flat surface (324) thereon. The elastic plate abuts between an inside wall of the housing and the arcuate surface. During rotation of a cover of a folding phone, the arcuate surface is rotatably engaged with the elastic plate until the elastic plate is positioned on the flat surface of the cam portion.

Abstract: A cover restricting mechanism (8) is adapted for use in a foldable electronic device (9). The foldable electronic device includes a cover (10). The cover restricting mechanism includes a projection (31), a housing (20), and a stopping element (32). The projection is provided at one end of the cover. The housing has an inner surface and a corresponding cavity. The stopping element is provided at the inner surface of the housing, and, when the foldable electronic device is in an open position the projection abuts the stopping element. The stopping element is made of an elastomeric material and is configured for slowing the movement of the projection and, thus, the cover once abutment occurs.

Abstract: An enclosure assembly for a portable electronic device according to a preferred embodiment of the present invention includes a cover (1), a plurality of latching elements (2), and a housing (3). The cover has a plurality of hooks (124) at a lower end and a plurality of tabs (16) defining grooves (162) therein extending from sidewalls (14) thereof. Each latching element comprises a plurality of protrusions (24) and a detaching means (222). The housing has a plurality of slots (38) at its sides and projections (322) at its lower end. Each projection defines a notch (324). In assembly, each latching element is received in a slot of the housing, the protrusions engage with the tabs of the cover and the hooks of the cover are received in the notches of the housing. To disassemble, the consumer uses two pointed objects to push the detaching means of the latching elements towards the lower end of the housing, disengaging the protrusions from the tabs.

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.