Abstract: An electronic device and a hinge assembly thereof. The electronic device includes a base, an elastic member, a first cam, a second cam, and a third cam. The elastic member is disposed on the base. The first cam is disposed on the base in a manner such that the first cam is abutted by the elastic member. The first cam rotates in a first direction and a second direction opposite to the first direction. The second cam is disposed on the base in a manner such that the second cam is abutted by the first cam. When the first cam rotates in the first direction, the second cam rotates along with the first cam. The third cam is disposed on the base in a manner such that the third cam is abutted by the second cam. When the first cam rotates in the second direction, the second cam is blocked by the third cam and does not rotate along with the first cam.

Abstract: A connector for connecting a contact pad of a flexible printed circuit board against terminals of an electronic component comprises a body and a reinforcing plate, wherein the body is combined with the electronic component and two parallel sliding channels are mounted on the body corresponding to two sides of the terminals of the electronic component, and the reinforcing plate is combined with the contact pad of the flexible printed circuit board so as to increase the stiffness of the contact pad, and two sides of the reinforcing plate cooperate with the two parallel sliding channels of the body, thereby connecting the contact pad of the flexible printed circuit board against the terminals of the electronic component.

Abstract: A magnetic rotating apparatus is used for connecting a body portion and a rotating portion of a foldable product. The body portion has an assembling portion while the rotating portion has a pivot portion. The rotating portion is secured to the body portion by engaging the pivot portion with the assembling portion, so that the rotating portion is allowed to pivot on the body portion and be positioned at the first stable equilibrium or the second stable equilibrium. The magnetic rotating apparatus comprises a magnetic body component situated in the assembling portion and a magnetic pivot component situated in the pivot portion. The magnetic body component and the magnetic pivot component are disposed as mates. Also, the opposite surfaces of the magnetic pivot component and the magnetic body component have the same polarity. When the rotating portion and the body portion are maintained at the first stable equilibrium, the magnetic pivot component is positioned at one side adjacent to the magnetic body component.

Abstract: A magnetic hinge apparatus having a hinge housing, a hinge shaft, an immobilized magnetic device, and a rotatable magnetic device is disclosed. The hinge housing has a cavity for receiving the immobilized magnetic device and the rotatable magnetic device. There is no relative motion between the immobilized magnetic device and the hinge housing, due to the firm attachment of the immobilized magnetic device to the hinge housing. The hinge shaft on which the rotatable magnetic device is assembled is inserted in the cavity. When the hinge housing rotates around the hinge shaft, the immobilized magnetic device is simultaneously rotated relatively to the rotatable magnetic device. The rotatable and immobilized magnetic devices are disposed as mates, and the opposite surfaces of the rotatable magnetic device and the immobilized magnetic device have the same polarity. Accordingly, the magnetic hinge apparatus is stably maintained at two equilibrium positions.

Abstract: A magnetic rotating apparatus is used for connecting a body portion and a rotating portion of a foldable product. The body portion has an assembling portion while the rotating portion has a pivot portion. The rotating portion is secured to the body portion by engaging the pivot portion with the assembling portion, so that the rotating portion is allowed to pivot on the body portion and be positioned at the first stable equilibrium or the second stable equilibrium. The magnetic rotating apparatus comprises a magnetic body component situated in the assembling portion and a magnetic pivot component situated in the pivot portion. The magnetic body component and the magnetic pivot component are disposed as mates. Also, the opposite surfaces of the magnetic pivot component and the magnetic body component have the same polarity. When the rotating portion and the body portion are maintained at the first stable equilibrium, the magnetic pivot component is positioned at one side adjacent to the magnetic body component.

Abstract: A method for shaping an object. The method includes the steps of preparing an attachment material having a glass transition temperature lower than that of the object, fixing the attachment material on the object, forming the object into a predetermined shape, heating the attachment material until the temperature is higher than its glass transition temperature, and cooling the attachment material and the object until the temperature is lower than the glass transition temperature of the attachment material. Additionally, shaping of the object and heating of the attachment material can achieve the same results.

Abstract: A magnetic hinge apparatus is applicable to a foldable product (such as folding cellular phone) for connecting the cover and the base. A practical application is provided by aligning two magnetic cams on a shaft. One magnetic cam is connected to the base, and the other is connected to the cover. Also, an attractive force is formed between the opposite surfaces of the two opposite magnetic cams. Before applying any external force on the foldable product, the convex portion of one magnetic cam completely engages the concave portion of the other magnetic cam. When the cover is opened, both magnetic cams are rotated relatively and then separated from the engaged position. When the cover keeps in opening, the convex portions of both magnetic cams are going to touch and then across each other; meanwhile, the magnetic force can attract two magnetic cams back to the engaged position. Accordingly, the foldable product secured by the magnetic hinge apparatus possesses the snap characteristic.