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A passive temperature sensing element

A sensing element and passive sensor technology, applied in electrical components, fire rescue, delayed action cells, etc., can solve the problems that have not yet been applied in the fire protection industry, and achieve the effects of simple structure, high sensitivity and reliable action

Active Publication Date: 2017-08-25
QINGDAO SUNYFIRE TECHNOLOGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has not yet been applied to the fire protection industry

Method used

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  • A passive temperature sensing element
  • A passive temperature sensing element
  • A passive temperature sensing element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 2 As shown, the passive temperature sensing element provided in this embodiment includes a positive electrode 1, a negative electrode 2, and an electrolyte or a molten salt electrolyte 3 formed by heating; one end of the positive electrode 1 and the negative electrode 2 is connected to a fire extinguishing device or an alarm device; Formed electrolyte or molten salt electrolyte 3 is provided between positive electrode 1 and negative electrode 2 .

[0043] In order to prevent the passive temperature sensing element from being heated due to moisture or heat to form an electrolyte or molten salt electrolyte 3 to flow out, a housing 4 is also provided outside it, and the housing 4 can be made of metal, plastic or rubber materials.

[0044] The positive electrode 1 adopts iron disulfide, tungsten trioxide, vanadium pentoxide, lead chromate or potassium dichromate, etc., or adopts conductors, semiconductors or polymers with the above-mentioned or equivalent su...

Embodiment 2

[0056] Such as Figure 6 As shown, the passive temperature-sensing element provided in this embodiment includes two conductors 7 and multiple point-type passive temperature-sensing elements arranged in parallel between the two conductors 7 provided in Embodiment 1; each A point-type passive temperature sensing element includes a positive electrode 1, a negative electrode 2, an electrolyte formed by heating or a molten salt electrolyte 3, and a housing 4; the electrolyte formed by heating or a molten salt electrolyte 3 is arranged between the positive electrode 1 and the negative electrode 2, and the external device Housing 4; one of the conductors 7 is connected to the positive pole 1 of multiple point temperature sensing elements at the same time, and the other conductor 7 is connected to the negative pole 2 of multiple point temperature sensing elements at the same time, and the two conductors 7 One end is connected with fire extinguishing equipment or alarm device.

[0057...

Embodiment 3

[0063] In order to prevent strong electromagnetic interference or lightning induction or abnormal temperature sensing of passive temperature sensing elements, such as Figure 7 As shown, the passive temperature sensing element provided in this embodiment is to add at least one normally open thermal switch 8 on the basis of the passive temperature sensing element provided in the above embodiment 1; one end of the positive pole 1 or the negative pole 2 Connect a thermosensitive switch 8, or connect one end of the positive pole 1 and the negative pole 2 to a thermosensitive switch 8 respectively, and one end of the positive pole 1 and the negative pole 2 is connected directly or through the thermosensitive switch 8 to the fire extinguishing equipment or the alarm device.

[0064] The normally open thermal switch 8 is a switch output thermal element, such as a bimetal strip, a reed switch, a memory alloy wire, a switch temperature-sensing cable, and the like.

[0065] The working ...

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Abstract

A passive temperature sensing element. It includes a positive electrode, a negative electrode, an electrolyte formed by heating or a molten salt electrolyte, and an external casing; one end of the positive electrode and the negative electrode is connected to a fire extinguishing device or an alarm device; the electrolyte formed by heating is arranged between the positive electrode and the negative electrode, and the outer casing is provided. The passive temperature sensing element provided by the invention can still start normally after no power supply or power failure, and has the advantages of low temperature resistance, moisture resistance, simple structure, reliable action, high sensitivity, and no false alarm, so it can be applied to Various electrically activated fire extinguishing systems. And it can also be used as a fire detector after connecting an alarm device or a conversion device.

Description

technical field [0001] The invention belongs to the technical field of fire protection, and in particular relates to a passive temperature sensing element. Background technique [0002] With the improvement of people's awareness of fire safety, more and more fire extinguishing devices are used, so people pay more and more attention to the safety and reliability of fire extinguishing devices. Among the compressed ultrafine dry powder fire extinguishing devices, there are two main ways to start these fire extinguishing devices: [0003] One is to start with a heat-sensitive wire (that is, a fuse). The heat-sensitive wire is a linear structure made of temperature-sensitive spontaneous combustion material and connected to a fire extinguishing device. In the event of a fire, the heat-sensitive wire located in the protected area When it reaches a certain temperature, it will spontaneously ignite, and use the heat generated by the spontaneous combustion to activate the fire exting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M6/36H02N11/00
CPCG08B17/06A62C37/36
Inventor 曾学义邹志武
Owner QINGDAO SUNYFIRE TECHNOLOGE
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