Terminal block for electric meter

Abstract

The invention discloses a terminal base for an electric meter. The terminal base for the electric meter comprises a base body and an upper cover. A mutual inductor, a relay and a shunt are installed on all stations on the face of the base body respectively. A wiring board jack base with an inner slot is arranged on the face of the base body. A meter installation station is arranged on the back side of the base body, and a metering circuit template is installed on the back side of the base body. The metering circuit template is connected with a circuit function template on an external electric meter through the slot in the wiring board jack base by means of a PCB connection plate. Contact pins connected with a meter function template are fixedly installed on binding posts on the upper portion of the upper cover, and a fixing plate is installed at the position corresponding to the positions of the binding posts. The mutual inductor, the relay and the shunt on the base body are electrically connected with the circuit function template on the electric meter through the contact pins. According to the technical scheme, the terminal base for the electric meter is directly connected with a control unit through a wiring board in an inserted mode, the technology is simple, stability and firmness are achieved, use is safe, production cost is low, the problem of inaccurate measurement is solved, and the requirement for product quality is met.

Description

technical field [0001] The invention belongs to the technical field of electric meters, in particular to a terminal base for electric meters. Background technique [0002] The upper cover and the base of the existing electric meter terminal block are designed as one-piece inserts. Because the thermal expansion coefficients of plastic parts and copper materials are different, the inserts are prone to fall off under long-term work, resulting in product failure; there are many processing steps and Complex, it is not easy to automate and simplify the process; the integrated structure is lower than the waterproof level, it is difficult to meet the waterproof level of IP54 or higher, and it is easy to seepage. [0003] In addition, most of the various devices on the existing terminal block are connected to the functional template of the meter through wires. There are too many connecting wires, the circuit of the meter is too long, there are many hot spots, and there is a quality p...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the purpose of the present invention is to provide a terminal block for electric meters, which has few connecting wires, and integrates all external components in the base of the terminal block, which can realize integrated mechanical installation, simple process and stable Reliable, safe to use, low production cost, solves the problem of measurement distortion and meets product quality requirements

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