Connection terminal frame and flame-proof equipment

Abstract

The invention provides a connection terminal frame and flame-proof equipment. The connection terminal frame comprises a first surface and a second surface which are opposite to each other; a first set of contact pin holes and a second set of contact pin holes, wherein each contact pin hole in the first and second sets of contact pin holes penetrates through the first surface and the second surface, and the first set of contact pin holes and the second set of contact pin holes are fluidly separated from each other in the region of the connection terminal frame; and an encapsulating material injection hole arranged to penetrate through the first surface and the second surface and in fluid communication with each contact pin hole in the first set of contact pin holes. According to the connection terminal frame of the invention, the encapsulating material is set to flow along a preset encapsulating path, so that the air in the encapsulating path is discharged favourably. Therefore, the generation of air bubbles in the encapsulating material is avoided. In addition, gaps among relevant structures in the flame-proof equipment provided with the connection terminal frame are fully encapsulated, so that the flame-proof performance of the flame-proof equipment is greatly improved.

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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