Height adjusting mechanism and resistor fixing device

By designing a height adjustment mechanism and resistance fixing device, the problem of insufficient resistance heat dissipation and operating accident risks in dry-type on-load voltage regulation and distribution transformers is solved, and efficient heat dissipation and simple operation of the resistor are achieved.

CN222690472UActive Publication Date: 2025-03-28SHANGHAI ZHIXIN INTELLIGENT ELECTRIC CO LTD +1
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Patent Information

Application Number
CN202421270408.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-05
Publication Date
2025-03-28
Estimated Expiration
2034-06-05

AI Technical Summary

Technical Problem

The transition resistance heat dissipation capability of existing dry-type on-load voltage regulation and distribution transformers is insufficient, resulting in a decrease in insulation strength, increasing the risk of operating accidents, and complex structure increases operational difficulty.

Method used

A height adjustment mechanism and resistance fixing device are designed, including support components and adjustment components. The height adjustment of resistance is achieved through structures such as rotating blocks, adjustment chambers, and limiting units. A heat dissipation grooves and insulating sheets are provided in the winding skeleton to enhance the heat dissipation effect of the resistance.

Benefits of technology

It improves the heat dissipation ability of the resistor, reduces the risk of operating accidents, simplifies the operation process, adapts to different heights, and improves the operation quality of the switch.

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Abstract

The utility model relates to the technical field of voltage monitoring, in particular to the field of distribution transformer on-load tap changer manufacturing, in particular to a height adjusting mechanism and a resistor fixing device, a supporting assembly comprises a fixing assembly, a butt joint plate at the bottom of the fixing assembly, a control groove in the surface of the fixing assembly and an adjusting assembly in the control groove; the adjusting assembly comprises a rotating block in the control groove, an adjusting chamber at the other end of the fixing assembly and a limiting unit in the adjusting chamber, and the fixing assembly comprises an insulating base above the rotating block and a winding framework above the insulating base. The height adjusting mechanism is easy and convenient to operate, the resistor fixing device can be brought to a higher position only by being directly lifted upwards, the rotating block can support the resistor fixing device in a default state, when descending storage is needed, only an adjusting button needs to be rotated, and the heat dissipation effect of the transition resistor is effectively improved through a heat dissipation groove in the middle of the winding framework; and insulation failure and fusing caused by local overheating of the transition resistor are reduced.
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