Terminal block and flameproof equipment

Abstract

The invention provides a connection terminal frame and flameproof equipment. The terminal frame includes a first surface and a second surface opposite to each other; a first group of pin holes and a second group of pin holes, and each pin hole in the first group of pin holes and the second group of pin holes passes through The first surface and the second surface, and the first set of pin holes and the second set of pin holes are fluidly separated from each other in the area of ​​the terminal block; the potting material injection hole extends through the first surface and the second surface and are in fluid communication with each pin hole of the first set of pin holes. With the terminal frame of the present invention, the potting material will flow along the predetermined potting path, which is beneficial to discharge the air in the potting path and prevent air bubbles from being generated in the potting material layer. In addition, it is also beneficial to fully potting the gaps between related structures in the flameproof equipment using the terminal frame, thereby greatly improving the flameproof performance of the flameproof equipment.

Description

technical field [0001] The present invention relates to a terminal frame, in particular, to a terminal frame suitable for potting and flameproofing electronic devices in flameproof equipment, and to a flameproof device with such a terminal frame, in particular, to Transmitters with this type of terminal block. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Explosion-proof equipment (such as transmitter) is a kind of equipment commonly used in the field of industrial control equipment. It usually encapsulates instruments, other electronic devices and terminal blocks in the housing to prevent sparks caused by sparks in the internal circuits of the explosion-proof equipment. The explosion inside the flameproof equipment will ignite the combustible gas or liquid outside the flameproof equipment. In order to achieve the purpose of explosion-proof, the...

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Problems solved by technology

[0005] However, if the structure of the terminal block is not set properly, it is easy to cause the obtained potting structure to fail to meet the flameproof requirements of the flameproof equipment, for example, there are air bubbles in the obtained potting material layer or there is no filling between some joint surfaces. sealing potting material

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