SAFETY CONTROL STRUCTURE FOR HEATER WIRE
First Claim
1. A safety control structure for heater wire, comprising:
- a heater wire which includes a first heating wire, a second heating wire, an insulation and fusible layer interposed between said first heating wire and said second heating wire, as well as a coating layer which covers said second heating wire and said insulation and fusible layer, wherein, said first heating wire and said second heating wire each includes a first end and a second end, said first end of said first heating wire is coupled to said second end of said second heating wire;
a switch with one end coupled to said second end of said first heating wire and with another end coupled to a pole of a power, and said switch being triggered by a trigger circuit to either show turned on or interrupted status; and
an over current protection element with one end coupled to said first end of said second heating wire and with another end coupled to an opposite pole of said power, by which said insulation and fusible layer is fused when said first heating wire and said second heating wire produce exceptionally high temperatures, and the current is increased instantaneously when said first heating wire and said second heating wire are short-circuited, so that the circuit is interrupted by said over-current protection element to show interrupted status.
1 Assignment
0 Petitions
Accused Products
Abstract
A safety control structure for heater wire comprises a switch, a first heating wire, a second heating wire, and an over-current protection element, which are sequentially connected in series connection. An insulation and fusible layer is interposed between the first heating wire and the second heating wire. Accordingly, under normal condition, the switch is triggered by triggering the circuit, so as to have the first heating wire and the second heating wire then be heated up within a preset temperature range. When the first heating wire and the second heating wire produce exceptionally high temperatures to fuse the insulation and fusible layer, the current is increased instantaneously because the first heating wire and the second heating wire are short-circuited. Therefore, the circuit is interrupted by the over-current protection element to show a broken circuit status in order to stop heating up.
11 Citations
8 Claims
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1. A safety control structure for heater wire, comprising:
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a heater wire which includes a first heating wire, a second heating wire, an insulation and fusible layer interposed between said first heating wire and said second heating wire, as well as a coating layer which covers said second heating wire and said insulation and fusible layer, wherein, said first heating wire and said second heating wire each includes a first end and a second end, said first end of said first heating wire is coupled to said second end of said second heating wire; a switch with one end coupled to said second end of said first heating wire and with another end coupled to a pole of a power, and said switch being triggered by a trigger circuit to either show turned on or interrupted status; and an over current protection element with one end coupled to said first end of said second heating wire and with another end coupled to an opposite pole of said power, by which said insulation and fusible layer is fused when said first heating wire and said second heating wire produce exceptionally high temperatures, and the current is increased instantaneously when said first heating wire and said second heating wire are short-circuited, so that the circuit is interrupted by said over-current protection element to show interrupted status. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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- Resources
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Current AssigneeMulti-Technology Health Care Inc.
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Original AssigneeMulti-Technology Health Care Inc.
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InventorsWANG, Ching-Chuan
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current337/1
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CPC Class CodesH01H 2037/769 characterised by the compos...H01H 37/76 Contact member actuated by ...H05B 1/0269 For heating of fluids
