Automatic alarm device for electric power detection
An automatic alarm device and power detection technology, applied in electromagnetic measurement devices, electric/magnetic solid deformation measurement, etc., can solve the problems of cable cracking, excessive bending of overhead cables, increased cable safety risks, etc., to reduce the degree of bending Effect
Pending Publication Date: 2022-04-29
米莱特智能科技(深圳)有限公司
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Problems solved by technology
[0004] However, during the daily use of the current overhead cables, unexpected stresses often occur, especially in windy or snowy weather, which can easily lead to excessive stress and excessive bending of the overhead cables, especially at the center of the cable. Due to the large weight, there will be a certain degree of bending. Once the force is too large, it is easy to cause the cable to crack, which will not only increase the safety risk of the cable, but also may cause electrical accidents.
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Embodiment 1
[0042] see Figure 1-4 , an automatic alarm device for power detection, comprising an overhead cable 1, a matching detection cable 2 is connected to the lower end of the overhead cable 1, and both ends of the detection cable 2 are electrically connected to a wireless alarm 3, specifically an electromagnet 22 Electrically connected with the wireless alarm 3, the detection cable 2 includes a cable main body 21, a pair of electromagnets 22 and a plurality of supporting points 23, the electromagnets 22 are symmetrically embedded in the inner end of the cable main body 21, and the center of the cable main body 21 Through the fixed connection between a plurality of support points 23 and the overhead cable 1, a self-bending cavity is provided at the center of the cable main body 21, and a control switch 6 is installed in the self-bending cavity, and one end of the electromagnet 22 close to the control switch 6 is fixedly connected with a The migration column 4 is fixedly connected to...
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The invention discloses an automatic alarm device for power detection, which belongs to the technical field of alarm devices, can detect the bending degree of an aerial cable in real time by arranging a detection cable matched with the aerial cable, and can give an alarm once the aerial cable is seriously bent. The electric control switch in the self-bending cavity in the detection cable can feed back the serious bending phenomenon in time, the wireless alarm is triggered to give an alarm automatically after circuit connection is connected, the bending phenomenon of the aerial cable can be prompted in time in an alarm mode, meanwhile, the electromagnet can be started to generate mutually exclusive magnetic fields after the circuit is connected, and therefore the bending phenomenon of the aerial cable can be detected. The detection cable is changed into a linear state from a bending state conforming to the aerial cable and is tightened at the same time to reversely support the aerial cable, so that the bending degree of the aerial cable is reduced, the aerial cable is protected, and an alarm is released; and whether the aerial cable is in a long-term stress state or an instantaneous stress state can be judged.
Description
technical field [0001] The invention relates to the technical field of alarm devices, in particular to an automatic alarm device for electric power detection. Background technique [0002] Overhead cable (full name overhead insulated cable) is an overhead wire equipped with an insulating layer and a protective sheath. It is a special cable manufactured by a production process similar to cross-linked cables. It is a new power transmission between overhead wires and underground cables. Way. [0003] Aerial cables are all single-core, which can be divided into hard aluminum wire structure, hard-drawn copper wire structure, aluminum alloy wire structure, steel core or aluminum alloy core support structure and self-supporting three-core textured structure according to their different structures. The core can be hard aluminum or hard copper wire), etc. It has the main characteristics of high power supply reliability, good power supply security, convenient erection and maintenanc...
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Login to View More IPC IPC(8): G01B7/16
CPCG01B7/16
Inventor 王莹
Owner 米莱特智能科技(深圳)有限公司