Abstract: A button is mounted to a housing of an electronic device, the button includes a pressing body and a sealed body. The pressing body is mounted to the housing. The sealed body is coupled to the pressing body, the sealed body defines a slot around an external peripheral wall and forms two opposite elastic walls, the two elastic walls resist to the pressing body and the housing, respectively. An electronic device and a button arrangement employing the button are also disclosed.

Abstract: A protective case includes a main housing and a cover. The main housing includes a wire arranging portion with a first frame, a second frame, and a third frame. The first frame and the second frame are diagonally positioned each other, and the third frame are positioned at one side of the second frame. The cover is detachable from the main housing for covering the wire arranging portion.

Abstract: A mounting assembly for a chip card used in a portable electronic device includes a cover, an operating element, and a receiving member for receiving the chip card. One end of the operating element is slidably received in the cover, and the other end of the operating element is elastically resisted between the receiving member and the cover and is connected to the receiving member. The cover is pressed to expose the operating element and the operating element is pulled to allow the receiving member to move out of the portable electronic device.

Abstract: A button is mounted to a housing of an electronic device, the button includes a pressing body and a sealed body. The pressing body is mounted to the housing. The sealed body is coupled to the pressing body, the sealed body defines a slot around an external peripheral wall and forms two opposite elastic walls, the two elastic walls resist to the pressing body and the housing, respectively. An electronic device and a button arrangement employing the button are also disclosed.

Abstract: A protective case includes a main housing and a cover. The main housing includes a wire arranging portion with a first frame, a second frame, and a third frame. The first frame and the second frame are diagonally positioned each other, and the third frame are positioned at one side of the second frame. The cover is detachable from the main housing for covering the wire arranging portion.

Abstract: A protective case includes a main housing and a bracket. The main housing defines a recess and a retaining groove. The bracket includes a first plate, at least one bracket support, and a second plate. The second plate is slidably received in the retaining groove, and the first plate is received in the recess. The first plate is rotatably connected to the second plate by the bracket support. The first plate is rotated out of the recess to support an electronic device at a desired angle.

Abstract: A surface contact card holder includes a housing, a tray and two elastic members positioned between the tray and the housing. The housing includes a support plate and defines an opening. The support plate defines a through hole. The tray is slidable and receivable in the housing from the opening and the tray is configured for carrying a surface contact card therein. The tray includes a tray body and a cantilever arm extending from the tray body. The cantilever arm includes a protruding portion releasbly latched in the through hole. When the protruding portion is pressed to release the tray, the tray is automatically slid out of the opening under the elastic force of the elastic members to allow insertion and removal of the surface contact card from the housing.

Abstract: A sliding key module includes a main body, two opposite hooks projecting from the main body and a sliding key. Each hook includes a latch and a guiding portion connecting the latch and the main body. The latches, the guiding portions and the main body cooperatively define a sliding channel. The sliding key includes a first sliding track slidably mounted in the sliding channel. The first sliding track is pressed to mount in the sliding channel through the gap between the latches.

Abstract: A chip card holder includes a housing, a receiving frame, an elastic member, a tray, and a protective cover. The housing defines two holes. The receiving frame is mounted in the housing. The tray is slidably received in the receiving frame. The protective cover is slidably connected to the housing to cover the holes. The elastic member torsionally connects the tray to the protective cover. After the protective cover is slid along the housing and is unlocked from the housing, the elastic member pulls the tray from the housing.

Abstract: A protective case is used for protecting an electronic device. The protective case includes a first housing, a second housing, and a sealing member. The first housing defines a receiving groove, a first hole, and a second hole. The second housing is engaged with the first housing. The sealing member is latched in the receiving groove and covers the first hole and the second hole.

Abstract: A chip card holder includes a housing, a receiving frame, an ejecting member, a tray, a protective cover, and two sliders. The housing defines a through hole and two latching grooves. The receiving frame is mounted on the housing. The ejecting member is positioned at one end of the receiving frame. The tray is slidably received in the receiving frame and abutted by the ejecting member. The protective cover is mounted to the tray and received in the through hole. The two sliders are slidably positioned on the protective cover and releasbly received in the latching grooves. When the two sliders slide relative to the protective cover and are unlocked from the housing, the ejecting member ejects the tray from the housing.

Abstract: A chip card holder includes a housing defining a hole, a receiving frame, an ejecting member, a tray, an elastic member, and a protective cover. The receiving frame is mounted on the housing. The ejecting member is positioned at one end of the receiving frame. The tray is slidably received in the receiving frame and is abutted by the ejecting member. The elastic member is positioned between the tray and the protective cover. The protective cover is slidably connected to the tray and covers the hole. After the protective cover is slid along the housing and is unlocked from the housing, the ejecting member ejects the tray from the housing.

Abstract: A surface contact card holder includes a main body defining an entrance, a tray for receiving a surface contact card, and a cover attached to an end of the tray and releasably received in the entrance. The tray is slidably received in the main body through the entrance. The cover includes an operation board comprising elastic material. The tray has a supporting portion protruding from the end with the cover attached. When the operation board is pressed towards the tray, a portion of the operation board deforms to elastically resist the supporting portion, thus a free end of the operation board is raised up around the supporting portion to pivot away from the entrance.

Abstract: A portable electronic device includes a housing defining an opening, a string of a pendant, and a pendant attachment device. The pendant attachment device includes a fixing block, an attachment element rotatably and movably fixed in the compartment, a fixing plate fixed to the housing and an elastic element. The fixing block defines a compartment. The attachment element includes a main body defining a fixing hole, the string is threaded through the fixing hole. In a first state, the elastic element exerts an elastic force on the attachment element, causing the attachment element being latched with the latching block with the fixing hole is located in the opening. In a second state, the elastic element drives the attachment element to move away from the fixing plate, thereby making the fixing hole stick out of the opening.

Abstract: A surface contact card holder includes a housing, a tray and two elastic members positioned between the tray and the housing. The housing includes a support plate and defines an opening. The support plate defines a through hole. The tray is slidable and receivable in the housing from the opening and the tray is configured for carrying a surface contact card therein. The tray includes a tray body and a cantilever arm extending from the tray body. The cantilever arm includes a protruding portion releasbly latched in the through hole. When the protruding portion is pressed to release the tray, the tray is automatically slid out of the opening under the elastic force of the elastic members to allow insertion and removal of the surface contact card from the housing.

Abstract: A portable electronic device includes a housing defining an opening, a string of a pendant, and a pendant attachment device. The pendant attachment device includes a fixing block, an attachment element rotatably and movably fixed in the compartment, a fixing plate fixed to the housing and an elastic element. The fixing block defines a compartment. The attachment element includes a main body defining a fixing hole, the string is threaded through the fixing hole. In a first state, the elastic element exerts an elastic force on the attachment element, causing the attachment element being latched with the latching block with the fixing hole is located in the opening. In a second state, the elastic element drives the attachment element to move away from the fixing plate, thereby making the fixing hole stick out of the opening.

Abstract: A fastening assembly includes a fastening block, a release element, and at least one elastic element. The fastening block includes a sliding groove and a stopper portion defined on the sliding groove. The release element includes a pressing portion defining a rope hole formed therein and a stopper column protruding from the pressing portion towards the stopper portion of the fastening block. The end of the stopper column is releasably locked to the stopper portion. The elastic element resists against the fastening block and the pressing portion. When the pressing portion is pressed towards the fastening block, the end of the stopper column moves and gets around of the stopper portion; when the pressing of the pressing portion is released, the elastic element releases elastic expansion to push the pressing portion away from the fastening block.

Abstract: A sliding key module includes a main body, two opposite hooks projecting from the main body and a sliding key. Each hook includes a latch and a guiding portion connecting the latch and the main body. The latches, the guiding portions and the main body cooperatively define a sliding channel. The sliding key includes a first sliding track slidably mounted in the sliding channel. The first sliding track is pressed to mount in the sliding channel through the gap between the latches.

Abstract: A hinge assembly includes a positioning module, a connecting module and a rotating module. The positioning module includes a sleeve. The connecting module includes a pivot tube and a shaft. The pivot tube is rotatably attached to the sleeve. The shaft is slidably and rotatably received in the pivot tube. The rotating module is rotatably attached to one end of the shaft.

Abstract: A rotatable connecting mechanism (100) includes a cover (10), a base (30), a toothed element (20) and an elastic element (24). The cover is rotatably mounted on the base (30). The toothed element (20) on a surface of the cover (10) facing to the base (30). The toothed element (20) defining a plurality of toothed grooves (222) around a peripheral wall thereof. The elastic element (24) having an engaging portion (2422) formed thereon and configured on a surface of the base (30) facing to the cover (10). The engaging portion (2422) rotatably engages 5 the plurality of toothed grooves (222).