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Complex protection device of blocking the abnormal state of current and voltage

A technology for protection elements and resistance elements, applied in the field of composite protection elements, can solve problems such as inability to protect, and achieve the effects of simplified structure, efficient guidance, and improved fusing efficiency

Inactive Publication Date: 2015-09-02
SMART ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned patent, when the resistive element generates heat and the fusible element is blown, the central region of the fusible element is not fused sufficiently, or if the central region is not completely separated from the front region or the rear region, then The current is not cut off, so that the circuit and the circuit components provided on the circuit cannot be protected

Method used

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  • Complex protection device of blocking the abnormal state of current and voltage
  • Complex protection device of blocking the abnormal state of current and voltage
  • Complex protection device of blocking the abnormal state of current and voltage

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Embodiment Construction

[0053] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0054] figure 1 It is a circuit diagram for explaining the use state of the composite protection element of this invention. refer to figure 1 , the composite protection element of the present invention protects the circuits and components connected to the main circuit under abnormal conditions by fusing the fusible element 10 connected to the main circuit.

[0055] The type of the main circuit to which the composite protection element of the present invention is applied is not particularly limited, and a charging circuit in which a battery can be charged can be taken as an example.

[0056] On the main circuit described above, the fusible element 10 and the battery, and the charger and the fusible element 10 are connected to each other. Specifically, the main circuit may include a plurality of resistance elements 20, 20a connected to the fusible eleme...

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Abstract

Disclosed is a complex protection device in which a circuit and circuit elements installed on the circuit may be protected from overcurrent and overvoltage and cohesion of a fusible element is induced by a circular or oval fusing induction part and thus fusing efficiency may be improved.

Description

technical field [0001] The present invention relates to a composite protection element, and more particularly to a composite protection element capable of protecting a circuit and circuit elements provided on the above circuit from overcurrent and overvoltage, by means of a circular or elliptical The fusing guide guides fusing and condensation of the fusible element, thereby improving fusing efficiency. Background technique [0002] A non-recovery protection element that senses excessive heat generated by overcurrent or ambient temperature on the protected equipment operates at a specified operating temperature to cut off the circuit in order to ensure equipment safety. As one example of a protection element, an abnormal signal current generated in a device is used to detect an abnormal signal current to generate heat in a resistor, and the heat generated activates a fuse element. [0003] Korean Patent Application Publication No. 10-2001-0006916 discloses a protection elem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H5/04H01H85/046
CPCH02H9/02H02H9/044H01L23/345H01L23/62H01L2924/0002H02H3/087H02H9/041H02H9/042H02J7/0031H02J7/00304H02J7/00308H02J7/00309H01L2924/00
Inventor 姜斗园金炫昌金桄范尹生守权赫帝
Owner SMART ELECTRONICS CO LTD
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