Overheat protection device for movable body surface, overheat protection apparatus using the same and temperarture control device
First Claim
1. An overheat protection device for a movable body surface, the device comprising:
- a thermal fuse comprising a fuse element which melts at a predetermined temperature, the fuse element bridging electrodes in a pair and melting at a temperature equal to or higher than the predetermined temperature to break an electrical connection between the pair of electrodes; and
a pair of long elastic bodies, to each of which one of the electrodes is electrically connected at an end or its periphery of the elastic body through a lead, at least one of pairs of upper surfaces and lower surfaces of the elastic bodies being spatially on a same plane.
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Accused Products
Abstract
An overheat protection device for a movable body surface includes a thermal fuse having a fuse element which melts at a predetermined temperature, bridges electrodes in a pair and melts at a temperature equal to or higher than the predetermined temperature to break an electrical connection between the pair of electrodes, and a pair of long elastic bodies, to each of which one of the electrodes is electrically connected at an end or its periphery of the elastic body through a lead. At least one of pairs of upper surfaces and lower surfaces of the elastic bodies are spatially on a same plane.
39 Citations
22 Claims
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1. An overheat protection device for a movable body surface, the device comprising:
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a thermal fuse comprising a fuse element which melts at a predetermined temperature, the fuse element bridging electrodes in a pair and melting at a temperature equal to or higher than the predetermined temperature to break an electrical connection between the pair of electrodes; and
a pair of long elastic bodies, to each of which one of the electrodes is electrically connected at an end or its periphery of the elastic body through a lead, at least one of pairs of upper surfaces and lower surfaces of the elastic bodies being spatially on a same plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An overheat protection apparatus provided in a power circuit in a heating apparatus on a movable body surface, the overheat protection apparatus comprising:
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an overheat protection device comprising;
a thermal fuse, a part of which is pressed into contact with the surface of the movable body, comprising a fuse element which melts at a predetermined temperature, the fuse element bridging electrodes in a pair and melting at a temperature equal to or higher than the predetermined temperature to break an electrical connection between the pair of electrodes, thereby causing a break in the power circuit; and
a pair of long elastic bodies, to ends or their periphery of which the respective electrodes are electrically connected through leads, at least one of pairs of upper surfaces and lower surfaces of the elastic bodies being spatially on a same plane. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A temperature control device for a movable body surface, the device comprising:
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an overheat protection device comprising;
a thermal fuse comprising a fuse element which melts at a predetermined temperature, the fuse element bridging electrodes in a pair and melting at a temperature equal to or higher than the predetermined temperature to break an electrical connection between the pair of electrodes; and
a pair of long elastic bodies, to each of which one of the electrodes is electrically connected at an end or its periphery of the elastic body through a lead, at least one of pairs of upper surfaces and lower surfaces of the elastic bodies being spatially on a same plane;
a temperature detection device comprising;
a pair of long elastic bodies, at least one of pairs of upper surfaces and lower surfaces of the elastic bodies being spatially on a same plane; and
a temperature sensor electrically bridging portions around ends of the pair of elastic bodies on one side; and
a holding member holding the overheat protection device and the temperature detection device, wherein a side of the pair of elastic bodies in the overheat protection device not connected with the thermal fuse and a side of the pair of elastic bodies in the temperature detection device not connected with the temperature sensor are fixed to the holding member and the both devices are integrated, such that the pair of plate elastic bodies in the overheating prevention device and the pair of plate elastic bodies in the temperature detection device are in parallel to each other and at least one of pairs of upper surfaces and lower surfaces of the elastic bodies of both devices are spatially on a same plane, and such that the thermal fuse in the overheat protection device and the temperature sensor in the temperature detection device are in positions away from the holding member by approximately equal distances. - View Dependent Claims (22)
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Specification