A Thermal Effect Lightning Strike Counter
A lightning strike counter and counter technology, applied in the direction of instruments, measuring devices, measuring electrical variables, etc., can solve the problems of complex structure, high operating environment requirements, application restrictions, etc., and achieve the effect of low cost, simple structure, and sensitive response
Active Publication Date: 2018-09-28
WUHAN HONGMEN ELECTRICAL TECH CO LTD
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Problems solved by technology
[0008] The above-mentioned lightning strike counters all use electronic devices and power supplies, have complex structures, have high requirements on the operating environment, and require regular maintenance. In the occasions where the operating environment is harsh and maintenance-free is required, its application is limited
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[0029] The technical solution of the present invention will be further specifically described below in conjunction with the embodiments.
[0030] See figure 1 , The insulating base (1) is an epoxy resin insulating base, the chamber (2) is a cuboid, the length, width, and height are 3cm, 3cm, and 1cm respectively, and the inner wall is coated with a heat insulating layer. Thermal expansion working medium (4) is working medium. The lumen (5.1) is a copper tube with an inner diameter of 4 mm and a length of 15 mm, which is placed in the chamber (2). The piston (5.2) is a copper ball with an outer diameter of 4mm whose size matches the cavity (5.1). The piston (5.2) is placed in the cavity (5.1) and can move freely in the cavity (5.1).
[0031] The electric heating body (3.1) is a nickel-chromium resistance wire with an outer diameter of 0.8mm and a length of 30cm, and its two ends are respectively connected to the lightning current channel through the first electrical connector...
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The invention discloses a heat effect lightning stroke counter. According to the lightning stroke counter, an electric heating main body is connected in series between the pole foot of a power transmission line pole and a grounding body through an electrical connecting piece so that it can be ensured that lightning current lightning currents flow through the electric heating main body in case of lightning strokes. In case of the lightening strokes, the electric heating main body heats, and generated heat enables a thermal expansion working medium to be heated and expand to push a piston to trigger a counter deflector rod so as to drive the counter to count. Every time when the counter deflector rod deflects, it indicates that a lightening stroke takes place, one is added to the counting of the counter to increase a display digit, and this indicates that one more lightening stroke is counted. According to the invention, neither a power source nor an electronic device is necessary, the structure is simple, the reaction is sensitive, the stability and the reliability are high, the cost is low, the heat effect lightning stroke counter can be resistant to various climate conditions and severe environments, and is particularly applied to occasions with severe operation environments and maintenance-free requirements.
Description
technical field [0001] The invention belongs to the technical field of lightning protection, and in particular relates to a thermal effect lightning strike counter. Background technique [0002] The lightning strike counter is used to record the number of times buildings and other objects are struck by lightning, and can be used for lightning strike statistics and accident analysis. At present, lightning strike counters are mainly divided into two types: electromagnetic relay type and electronic type. Electromagnetic relay type lightning strike counter generates voltage on non-linear resistance through lightning current. After DC conversion, it discharges the coil of electromagnetic relay, drives the armature of electromagnetic relay to pull in, and turns the dial of mechanical counter to realize lightning strike counting. The electronic lightning strike counter generates a "0" or "1" signal through the lightning current induction voltage, and realizes lightning strike coun...
Claims
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IPC IPC(8): G01R19/17
CPCG01R19/17
Inventor 阮江军龚若涵葛贺飞唐烈峥
Owner WUHAN HONGMEN ELECTRICAL TECH CO LTD