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Flameproof electromagnet

An electromagnet and explosion-proof technology, applied in the mechanical field, can solve problems such as difficult disassembly, trouble, and sealing failure

Active Publication Date: 2012-07-11
宁波市鄞州通力液压电器厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the flameproof electromagnets put into use mainly have the following problems: the magnetic tube and the coil are riveted together, and it is not easy to disassemble. The electromagnet and the valve are connected through the magnetic tube. If the electromagnet is damaged or the valve is damaged, it will be scrapped as a whole. , poor maintainability; there is no reserved space between the flameproof enclosure and the flameproof junction box, and the power leads are directly connected to the coil assembly and lead out from the upper end of the product. The length of the power cord cannot be changed since the product is manufactured. Trouble; only sealing rings are used between the flameproof enclosure and the flameproof junction box. Under long-term work, the sealing ring is easy to age, resulting in seal failure and poor flameproof performance; there is no rectification device inside the electromagnet, so it cannot be directly powered by AC

Method used

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] As shown in the figure, the present invention provides a flameproof electromagnet, which includes a flameproof casing 1 with a cylindrical cavity inside. The shape of the flameproof casing 1 is a cuboid, and a coil assembly 2 is installed in the cylindrical cavity of the flameproof casing 1. , the upper part of the flameproof enclosure 1 is equipped with a flameproof junction box 3, the upper part of the flameproof enclosure 1 is provided with a boss 4, the end surface of the boss 4 is provided with a groove 5, and the bottom of the groove 5 is connected to the insulation The cylindrical cavity of the explosion-proof enclosure 1 is connected, and the lead wire of the coil assembly 2 can be drawn out from the groove 5. The groove 5 is filled with a sealant 6 for sealing the cylindrical cavity of the explosion-proof enclosure 1 fr...

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Abstract

The invention provides a flameproof electromagnet which comprises a flameproof shell. The flameproof shell is internally provided with a cylindrical cavity; a coil assembly is arranged in the cylindrical cavity; the upper part of the flameproof shell is provided with a flameproof terminal box and a lug boss; the lug boss is provided with a groove; the bottom of the groove is communicated with thecylindrical cavity; sealant is poured into the groove; the flameproof terminal box covers the periphery of the lug boss; the opening of the groove of the lug boss is provided with a terminal plate; the terminal plate is provided with a terminal; and the terminal is connected with the lead of the coil assembly. Compared with a sealing ring, the flameproof electromagnet has low cost and good flameproof effect, is not easy to age and is not easy to fail to seal. The lead of the coil assembly can be directly led on the terminal, the terminal can be externally connected with a power cord, and the lead of the coil assembly can not be restricted in length and is hereby suitable for long-distance control and operation.

Description

Technical field: [0001] The invention relates to the mechanical field, in particular to a flameproof electromagnet. Background technique: [0002] At present, the flameproof electromagnets put into use mainly have the following problems: the magnetic tube and the coil are riveted together, and it is not easy to disassemble. The electromagnet and the valve are connected through the magnetic tube. If the electromagnet is damaged or the valve is damaged, it will be scrapped as a whole. , poor maintainability; there is no reserved space between the flameproof enclosure and the flameproof junction box, and the power leads are directly connected to the coil assembly and lead out from the upper end of the product. The length of the power cord cannot be changed since the product is manufactured. Trouble; only sealing rings are used between the flameproof enclosure and the flameproof junction box. Under long-term work, the sealing ring is easy to age, resulting in seal failure and po...

Claims

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Application Information

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IPC IPC(8): H01F7/08H01F7/123
Inventor 陈华林
Owner 宁波市鄞州通力液压电器厂
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