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Waterproof sealing structure for thread hole of transformer cable

A transformer cable, waterproof sealing technology, applied in the field of transformers, can solve the problems of the transformer sealing structure is not tight, can not achieve waterproof function, etc., to achieve the effect of enhancing the sealing effect

Inactive Publication Date: 2017-09-01
平顶山市华安电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing transformer sealing structure is not tight and cannot realize the waterproof function, the present invention provides a waterproof sealing structure for the cable threading hole of the transformer. , so as to achieve a strict seal between the cable and the cable hole, and a filling sealing plug formed by sealing glue is set between the two sealing rings, which further enhances the waterproof sealing effect

Method used

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  • Waterproof sealing structure for thread hole of transformer cable

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Embodiment Construction

[0013] As shown in the figure, a transformer cable threading hole waterproof sealing structure, including a sealing ring 3 made of silica gel material that is symmetrically stuck on both ends of the cable hole on the transformer casing 1, the threading hole in the middle of the sealing ring 3 and the outer diameter of the cable 2 For interference fit, between the two sealing rings 3 is a filling and sealing plug 4 formed after the filling and sealing glue is solidified.

[0014] The above is the basic implementation mode of the present invention, further improvement, optimization and limitation can be done on the basis of the above:

[0015] For example, the two ends of the cable hole are expanded to form a snap ring 101 with a diameter larger than the diameter of the cable hole, and the sealing ring 3 is composed of two parts: an expansion part 301 and a plugging part 302, wherein the outer diameter of the expansion part 301 is the same as that of the cable. The inner diamete...

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Abstract

A transformer cable threading hole waterproof sealing structure, including sealing rings made of silicone material that are symmetrically stuck at both ends of the cable hole on the transformer shell, the threading hole in the middle of the sealing ring and the outer diameter of the cable are interference fit, and the two sealing rings Between them is a filling and sealing plug formed after the filling and sealing gel is solidified. In the present invention, two sealing rings are made of silica gel material. After the cable is inserted into the two sealing rings, due to the interference fit between the two, when the cable is inserted into the sealing ring and then into the cable hole, due to extrusion Deformation, so that the sealing ring and the cable hole and between the sealing ring and the cable form a tight closed structure, and the sealing glue is filled between the two sealing rings, so that a filling sealing plug is formed after the sealing glue solidifies, which further enhances the sealing effect. Water penetration is completely isolated.

Description

technical field [0001] The invention relates to a transformer used in the electrical field, in particular to a waterproof sealing structure for a transformer cable threading hole. Background technique [0002] Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The main components are primary coil, secondary coil and iron core (magnetic core). The main functions are voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. Transformers can be divided into power transformers and special transformers according to their uses (electric furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers , reactors, transformers, etc.). [0003] The p...

Claims

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Application Information

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IPC IPC(8): H01F7/04H02G3/22H02G15/013
CPCH01F7/04H02G3/22H02G15/013
Inventor 杨明增王亚楠
Owner 平顶山市华安电气有限公司