A high-voltage DC relay convenient for quick assembly includes a housing, and load leading-out terminals, coil leading-out terminals and auxiliary leading-out terminals being provided with a connecting part for electrical connection with an external component. The connecting parts are respectively exposed to the housing; the connecting part of the load leading-out terminal is arranged at a top end of the housing; and the connecting parts of the coil leading-out terminal and the auxiliary leading-out terminal is arranged at a bottom end of the housing. Each connecting part has a welding plane for electrical connection with a corresponding one of the external components through quick welding. The present disclosure can realize the rapid welding assembly of products, maximize production efficiency of assembly and welding, and has characteristics of simple structure, low manufacturing cost and reliable electrical connection.

The invention provides an axially actuating tactile electrical switch comprising a casing; a plurality of independent fixed electrical contacts arranged in a base of the casing, and a movable electrical contact comprising a peripheral portion resting on a portion of a fixed peripheral electrical contact and a central portion movable vertically downwards; a single piece actuating body made of elastic material comprising a peripheral portion, an actuating central part comprising a lower portion for actuating the movable electrical contact, and an upper portion for receiving an actuating force, forming a casing comprising an upper cover having a hole whereby a free upper end section of the upper portion extends axially; the cover has an internal retaining surface; and the actuating body has an abutment surface cooperating with the internal retaining surface of the cover to determine an upper rest position of the actuating body with respect to the casing.

The invention provides an axially actuating tactile electrical switch comprising a casing; a plurality of independent fixed electrical contacts arranged in a base of the casing, and a movable electrical contact comprising a peripheral portion resting on a portion of a fixed peripheral electrical contact and a central portion movable vertically downwards; a single piece actuating body made of elastic material comprising a peripheral portion, an actuating central part comprising a lower portion for actuating the movable electrical contact, and an upper portion for receiving an actuating force, forming a casing comprising an upper cover having a hole whereby a free upper end section of the upper portion extends axially; the cover has an internal retaining surface; and the actuating body has an abutment surface cooperating with the internal retaining surface of the cover to determine an upper rest position of the actuating body with respect to the casing.

A switch includes a housing, a switching mechanism housed in the housing and configured to switch a state of connection between at least two terminals exposed out of the housing by using a common contact and two switching contacts, and an electronic component that is disposed in the housing and electrically connects the terminals to each other. The switching mechanism includes a first metal plate that is connected to a first contact, which is one of the common contact and the two switching contacts, and includes a first exposed part to which a first electrode of the electronic component is soldered by laser irradiation, and a second metal plate that is connected to a second contact, which is another one of the common contact and the two switching contacts, and includes a second exposed part to which a second electrode of the electronic component is soldered by laser irradiation.

A button assembly is disclosed including a plastic cover having an upper body portion and a lower flange portion, the upper body portion having a top wall and an interior cavity, wherein a port is formed in the top wall of the upper body portion and the lower flange portion is adapted and configured to be welded to a wall of a plastic housing, and an elastomeric button over-molded on the plastic cover and including an upper actuation portion and a lower body portion, wherein the upper actuation portion extends through the port formed in the top wall of the upper body portion of the cover, and the lower body portion resides in the interior cavity of the upper body portion of the cover.

A button assembly is disclosed including a plastic cover having an upper body portion and a lower flange portion, the upper body portion having a top wall and an interior cavity, wherein a port is formed in the top wall of the upper body portion and the lower flange portion is adapted and configured to be welded to a wall of a plastic housing, and an elastomeric button over-molded on the plastic cover and including an upper actuation portion and a lower body portion, wherein the upper actuation portion extends through the port formed in the top wall of the upper body portion of the cover, and the lower body portion resides in the interior cavity of the upper body portion of the cover.

A switch includes a housing, a switching mechanism housed in the housing and configured to switch a state of connection between at least two terminals exposed out of the housing by using a common contact and two switching contacts, and an electronic component that is disposed in the housing and electrically connects the terminals to each other. The switching mechanism includes a first metal plate that is connected to a first contact, which is one of the common contact and the two switching contacts, and includes a first exposed part to which a first electrode of the electronic component is soldered by laser irradiation, and a second metal plate that is connected to a second contact, which is another one of the common contact and the two switching contacts, and includes a second exposed part to which a second electrode of the electronic component is soldered by laser irradiation.

A button assembly is disclosed including a plastic cover having an upper body portion and a lower flange portion, the upper body portion having a top wall and an interior cavity, wherein a port is formed in the top wall of the upper body portion and the lower flange portion is adapted and configured to be welded to a wall of a plastic housing, and an elastomeric button over-molded on the plastic cover and including an upper actuation portion and a lower body portion, wherein the upper actuation portion extends through the port formed in the top wall of the upper body portion of the cover, and the lower body portion resides in the interior cavity of the upper body portion of the cover.

A switch device includes a housing having a case and a holding member, a moving member, a biasing member, a movable contact, a common fixed contact, a first switching fixed contact, a second switching fixed contact, extending portions, at least two terminal members, and resistors for obtaining the resistance value between two terminal members, and fixing portions to which the resistors are soldered. The holding member includes a bottom wall portion that covers the bottom of the case, and a holding wall portion holding the fixing portions. The holding wall portion is formed of a first synthetic resin material having heat resistance, and the bottom wall portion is made of a second synthetic resin material having a heat distortion temperature lower than that of the first synthetic resin material. A method for manufacturing a switch device includes a first molding step, a resistor mounting step, and a second molding step.

A switch device includes a housing having a case and a holding member, a moving member, a biasing member, a movable contact, a common fixed contact, a first switching fixed contact, a second switching fixed contact, extending portions, at least two terminal members, and resistors for obtaining the resistance value between two terminal members, and fixing portions to which the resistors are soldered. The holding member includes a bottom wall portion that covers the bottom of the case, and a holding wall portion holding the fixing portions. The holding wall portion is formed of a first synthetic resin material having heat resistance, and the bottom wall portion is made of a second synthetic resin material having a heat distortion temperature lower than that of the first synthetic resin material. A method for manufacturing a switch device includes a first molding step, a resistor mounting step, and a second molding step.