Fuse-combined type surge protector
A surge protector and combined technology, applied in emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, electrical components, etc. Safety and other issues, to achieve high safety performance level, reduce residual pressure residue, good airtight effect
Inactive Publication Date: 2014-12-03
郑品章
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Problems solved by technology
[0002] In the prior art, the fuses of ordinary protectors are arranged outside the shell, which is not conducive to explosion-proof, and it is not safe enough to be exposed to the outside, and the two ends of the fuse are connected by tortuous wires to easily generate inductance, or cause residual voltage to stay, affecting discharge discharge Effect
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[0010] The present invention will be further described below in conjunction with specific examples.
[0011] Such as figure 1 and figure 2 The fuse combined surge protector shown includes a protector body 1, and an overcurrent protection circuit and a large current impact voltage limiting protection circuit are arranged in the protector body 1. The overcurrent protection circuit is connected in series with at least one backup The protection element, the high current impact voltage limiting protection circuit includes a series circuit composed of at least one varistor and a backup protection element, the protector body 1 includes a casing 2, and the overcurrent protection circuit inside the casing 2 is connected in series with a The fuse 3, the fuse 3 is fixedly arranged in the fuse fixing basket groove 4 opened inside the shell 2, the notch of the fuse fixing basket groove 4 is provided with a cover plate, and the fuse is closed in the fuse fixing basket groove 4 Inside, on...
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The invention discloses a fuse-combined type surge protector. The fuse-combined type surge protector comprises a protector body. An overcurrent protection circuit is arranged inside the protector body. At least one backup protection element is connected to the overcurrent protection circuit in series. The protector body comprises a shell. A fuse is connected to the overcurrent protection circuit inside the shell in series and fixedly arranged in a fuse fixing basket groove formed inside the shell. A cover plate is arranged at a groove opening part of the fuse fixing basket groove. The fuse is sealed in the fuse fixing basket groove. One end of the fuse is electrically connected with a discharge electrode on a first binding post at one end inside the shell through a flat and straight connection copper piece. A second binding post at the other end inside the shell is electrically connected with a piezoresistor inside a cavity in the middle of the shell through an L-shaped connection copper piece. According to the fuse-combined type surge protector, the fuse is good in explosion-proof performance, the installed protective basket groove is good in sealing performance, the level of safety performance in use is high, the two ends of the fuse and the binding posts are electrically connected through flat and straight copper pieces, resistance is low, and residues of residual voltage are reduced.
Description
technical field [0001] The invention relates to the technical field of surge protectors, in particular to a combined fusing surge protector. Background technique [0002] In the prior art, the fuses of ordinary protectors are arranged outside the shell, which is not conducive to explosion-proof, and it is not safe enough to be exposed to the outside, and the two ends of the fuse are connected by tortuous wires to easily generate inductance, or cause residual voltage to stay, affecting discharge discharge Effect. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a combined fuse surge protector. [0004] In order to achieve the above purpose, the technical solution adopted by the present invention to solve its technical problems is: a fuse combination surge protector, including a protector body, and an overcurrent protection circuit and a large current impact voltage limiting protection are arranged in the protect...
Claims
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Inventor 郑品章
Owner 郑品章