A temperature-dependent switch has a housing with a cover part having a lower side and an upper side and with an electrically conductive lower part having a circumferential shoulder and a circumferential wall with an upper section that overlaps the cover part. The switch has a first external contact surface on the upper side of the cover part and a second external contact surface externally on the housing, wherein the upper section of the circumferential wall presses the cover part onto the circumferential shoulder. A temperature-dependent switching mechanism is arranged in the housing and, depending on its temperature, establishes or opens an electrically conductive connection between the first and second external contact surfaces. A circumferential cutting burr is arranged on the shoulder in the lower part.

The present invention relates to a protection device comprising a resin base, a first terminal, a PTC component, a bimetal component, an arm, an upper plate and a resin cover wherein flexibility of connecting to a lead or other electrical elements is high and sensitivity to the abnormal heat generation occurring outside is high. The protection device of the present invention comprises a resin base, a first terminal, a PTC component, a bimetal component, an arm, an upper plate and a resin cover; and the first terminal, the PTC component, the bimetal component, the arm and the upper plate are superposed in the above-mentioned order within a resin housing defined by the resin base and the resin cover, the portion of the upper plate is exposed at the portion of the resin cover, and the exposed portion functions as a second terminal, the first terminal, the arm and the upper plate are electrically connected in series in the above-mentioned order, and in an abnormal state where the bimetal component is activated, the first terminal and the arm become to be electrically cut off while the first terminal, the PTC component, the bimetal component, the arm and the upper plate become to be electrically connected in series in the above-mentioned order.

A temperature-dependent switch comprising a switch housing, a contact carrier element, and a temperature-dependent switching mechanism. The switch housing has a lower part and a cover part closing the lower part. The contact carrier element is arranged in the switch housing and comprises a contact surface, wherein at least a section of the contact carrier element is fixed in position by an interaction of the lower part and the cover part. The temperature-dependent switching mechanism is arranged in the switch housing and comprises a movable contact part which interacts with the contact surface arranged at the contact carrier element. The switching mechanism is configured to switch in a temperature- dependent manner between a low-temperature state, in which it establishes an electrical connection between first and second electrical terminals of the switch, and a high- temperature state, in which it interrupts the electrical connection between the first and second electrical terminals.

A temperature-dependent switch comprising a switch housing, a temperature-dependent switching mechanism, and a spacer element. The temperature-dependent switching mechanism is arranged in the switch housing and comprises a movable contact part, a bimetal element and a spring element. The switching mechanism is configured to switch between a low-temperature state, in which an electrical connection is established between first and second electrical terminals, and a high-temperature state, in which the electrical connection between the first and second electrical terminals is interrupted. The spacer element is arranged inside the switch housing between a lower part and a cover part. At least one section of the spring element is arranged between the spacer element and the switch housing and is fixed in position. At least one section of the bimetal element is arranged between the spring element and the spacer element and is supported on the spacer element in the high-temperature state.

A thermally activated safety switch for safeguarding a consumer of a power supply network of a vehicle, having a switch housing in a temperature-independent switching unit, which subject to the temperature thereof establishes an electrically conductive connection between two external terminals fed out of the switch housing, wherein the external terminals are fed out at opposite housing sides of the switch housing. On the one hand, the external terminals are provided for an electrical and mechanical terminal connection to the cable connection ends of a consumer to be protected, and on the other hand to a cable portion leading to an on-board power supply electronics, and are configured accordingly.

A temperature-dependent switching mechanism for a temperature-dependent switch, having a temperature-dependent bimetal snap-action disc, a temperature independent snap-action spring disc, an electrically conductive contact member to which the bimetal snap-action disc and the snap-action spring disc are captively held, so that the bimetal snap-action disc, the snap-action spring disc and the contact member form a switching mechanism unit captively held together, and a switching mechanism housing which captively holds the switching mechanism unit. The switching mechanism housing surrounds the switching mechanism unit from a first housing side, a second housing side opposite the first housing side, and a housing peripheral side extending between and transverse to the first and second housing sides. The switching mechanism housing is configured as an at least partially open housing and includes an opening on the first housing side through which the contact member is accessible from outside the switching mechanism housing.

Temperature-dependent switch, comprising a temperature-dependent switching mechanism having a switching mechanism unit, which comprises a movable contact part coupled to a bimetallic snap-action disc, and having a switching mechanism housing, in which the switching mechanism unit is arranged and held captively therein. Furthermore, the switch comprises a switch housing, in which the switching mechanism housing is arranged and held captively therein, wherein the switch housing comprises a stationary contact part, which acts as a mating contact to the movable contact part. The switching mechanism housing comprises an electrically conductive first base body and the switching mechanism is configured so as, below a response temperature of the bimetallic snap-action disc, to keep the switch in a low-temperature position in which the switching mechanism establishes a first electrical connection via the movable contact part between the first base body and the stationary contact part, and, if the response temperature is exceeded, to bring the switch into a high-temperature position in which the switching mechanism interrupts the first electrical connection. The switch further comprises a PTC component, which is electrically connected parallel to the first electrical connection.

A temperature-dependent switch, including a switching mechanism unit, and a switching mechanism housing including a first base body composed of electrically conductive material. The temperature-dependent switch further includes a switch housing having a second base body composed of electrically insulating material, in which the switching mechanism housing is arranged, wherein the switch housing includes a stationary contact part. The first base body of the switching mechanism housing surrounds the switching mechanism unit from a first housing side, a second housing side opposite to the first housing side, and a housing circumferential side extending between and transversely to the first and the second housing sides. The first housing side includes an opening through which a movable contact part of the switching mechanism unit interacts with the stationary contact part. The second base body surrounds the first housing side and the circumferential housing side of the switching mechanism housing.

A motor protector according to an embodiment includes a hermetic container, two conducting terminal pins, two fixed contact point support bodies, two fixed contact points, two movable contact points, and a thermal reaction plate. The fixed contact point support body is configured, by bending work on a plate material, to integrally include a conducting terminal pin side region, a fixed contact point side region arranged such that a space region is sandwiched therebetween and provided with a fixed contact point, and a connection region provided across the space region and connecting the conducting terminal pin side region and the fixed contact point side region. The total width dimension of the connection region is set to be smaller than the total width dimension of the space region.

A temperature-dependent switch having a switch housing, a temperature-dependent switching mechanism and a heating resistor component. The switch housing comprises a lower part made of electrically conductive material and a lid part which comprises a first section made of electrically conductive material and a second section made of electrically insulating material. The temperature-dependent switching mechanism comprises a movable contact part that establishes a first electrical connection between the lower part and a stationary contact part below a response temperature and interrupts the first electrical connection upon exceeding the response temperature. The heating resistor component is arranged inside the switch housing between the lid part and the lower part. The heating resistor component is electrically connected in series with the lower part and the first section of the lid part and electrically in parallel with the first electrical connection. The heating resistor component is arranged at a distance from the stationary contact part.