A temperature-dependent switch having a housing with an upper part and a lower part, wherein a first and a second stationary contact are arranged on the housing, and a temperature-dependent switching mechanism having a movable contact member. In its first switching position, the switching mechanism presses the movable contact member against the first contact and thereby produces an electrically conductive connection between the two contacts via the contact member, and, in its second switching position, keeps the movable contact member spaced apart from the first contact. A closing lock prevents the switch, once having opened, from closing again by locking the switching mechanism permanently in its second switching position in a mechanical manner. The closing lock comprises a substantially disc-shaped locking element and a first latching member, which, in order to lock the switching mechanism, interacts in the second switching position with a second latching member that is arranged on the movable contact member.

A temperature-dependent switch comprises first and second stationary contacts and a temperature-dependent switching mechanism having a movable contact member and a temperature-dependent snap-action part, which transitions between geometric low- and high-temperature configurations based on a temperature of the switch. Switching the snap-action part from its geometric low- to high-temperature configuration moves the switching mechanism from a first to a second switching position and thereby opens the switch. A closing lock prevents the switch once having opened from closing again by keeping it in its second switching position. The closing lock comprises a fusible medium which melts when a melting temperature of the medium is exceeded, contacts, in a molten state, a part of the switching mechanism when it is in its second switching position, and solidifies again and thereby locks it in its second switching position when the temperature of the switch falls below the melting temperature of the medium again.

One example device for overcurrent protection for wireless power receivers includes a wireless power antenna comprising a wire coil; a conditioning circuit electrically coupled to the wireless power antenna to receive an electric power signal from the wireless power antenna; a temperature-sensitive fuse electrically coupled between the wireless power antenna and the conditioning circuit and configured to electrically decouple the wireless power antenna from the conditioning circuit in response to being blown; and a thermal energy source configured to generate thermal energy based on an electrical signal from an output of the conditioning circuit, the thermal energy source positioned proximate the temperature-sensitive fuse.

An embodiment of an electric heating element is disclosed, including an electrically resistive inner heating element, an electrically resistive outer heating element, and a thermostat positioned underneath a centrally-positioned medallion and along a cold leg of the inner heating element. The thermostat is configured to selectively allow electrical current to be delivered to the inner heating element while maximum electrical current, for example, continues to be provided to the outer heating element. The thermostat cycles the electrical current on and off when detecting maximum and minimum desired temperatures radiated from the electric heating element. The inner heating element has a pair of cold legs that extend parallel to a pair of cold legs of the outer heating element, some or all of which may be supported by a terminal bracket.

A system for interrupting ignition is disclosed. Specific implementations of ignition interrupters may include a first conductive tab configured to couple to a spark plug; a second conductive tab configured to couple to a spark plug wire; a first tab holder coupled with the first conductive tab; a second tab holder coupled with the second conductive tab, where the second conductive tab overlaps with the first conductive tab; a sled positioned perpendicularly to a plane of the first conductive tab and the second conductive tab, the sled coupled between the first conductive tab and the second conductive tab; a first spring coupled to the sled; and a second spring coupled to the sled; where the sled may be configured to move to an open position in the gap between the first conductive tab and the second conductive tab, decompressing the first spring and the second spring.

A temperature-dependent switch has a first and a second stationary counter contact and a temperature-dependent switching mechanism with a contact member. The switching mechanism, in its first switching position, presses the contact member against the first counter contact and, in this case, produces an electrically conducting connection between the two counter contacts via the contact member. The switching mechanism, in its second switching position, holds the contact member at a spacing from the first counter contact. A closing lock is provided, which prevents the switch, once opened, from closing again. The closing lock locks the temperature-dependent switching mechanism permanently in the second switching position thereof in a mechanical manner.

A temperature-dependent switch which comprises a first and a second stationary counter contact and a temperature-dependent switching mechanism having a current transfer member. The switching mechanism, depending on its temperature, either closes the switch by pressing the current transfer member against the first and the second counter contact and thereby establishing an electrically conductive connection between the two counter contacts via the current transfer member, or opens the switch by keeping the current transfer member at a distance from the first and the second counter contact and thereby interrupting the electrically conductive connection. A closing lock is provided, which keeps the switch open when it has been opened for the first time. The closing lock comprises a spring washer which directly interacts with the current transfer member and mechanically locks the latter permanently when the switch has been opened for the first time so that the switch remains permanently open.

A miniature safety switch is used in motor vehicle electronics. The miniature safety switch has a housing base, from which a fixed contact arm and a bimetallic contact arm, which has a moving contact and a bimetallic snap disk attached thereto, are led out. A PTC resistor is brought into direct contact with the bimetallic snap disk by a compression spring and is electrically integrated in such a way that, as a result of the heat generated by the PTC resistor, the bimetallic snap disk remains in the open position thereof in the event of triggering.

A temperature-dependent switch comprising first and second stationary contacts and a temperature-dependent switching mechanism having a movable contact member. The switching mechanism, in its first switching position, presses the contact member against the first contact and thereby produces an electrically conductive connection and, in its second switching position, keeps the contact member spaced apart from the first contact and thereby disconnects the electrically conductive connection. The switch further comprises a closing lock that, as soon as it is activated, prevents the switch once having opened from closing again. The closing lock comprises a locking element having a shape-memory alloy and an opening through which the movable contact member protrudes. The locking element is configured to change its shape upon exceeding a locking element switching temperature and activate the closing lock, which holds the switching mechanism in its second switching position.

A miniature safety switch is used in motor vehicle electronics. The miniature safety switch has a housing base, from which a fixed contact arm and a bimetallic contact arm, which has a moving contact and a bimetallic snap disk attached thereto, are led out. A PTC resistor is brought into direct contact with the bimetallic snap disk by a compression spring and is electrically integrated in such a way that, as a result of the heat generated by the PTC resistor, the bimetallic snap disk remains in the open position thereof in the event of triggering.