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Transformer framework

A transformer skeleton and frame technology, which is applied in the direction of transformer/inductor coil/winding/connection, etc., can solve the problems that the temperature protection device cannot provide accurate and reliable temperature induction and the winding is not smooth, so as to achieve simplified structure and high temperature Preserve the accuracy and reduce the effect of the process

Inactive Publication Date: 2009-09-16
吴亮洪
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a temperature protection device that can not only provide accurate and reliable temperature sensing and uneven winding, but also require additional process operations in the existing transformer skeleton. A transformer skeleton that is embedded inside the winding to accurately sense temperature changes, and can meet creepage distances in accordance with international safety standards and does not require additional processes to complete

Method used

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Embodiment Construction

[0029] figure 1 , figure 2 as well as image 3 Both are structural diagrams of existing transformer skeletons.

[0030] Such as figure 1 As shown, in the prior art, a long slot 21 is cut horizontally along the bottom of the primary coil slot 2 of the transformer skeleton, and the temperature protection device 18 is placed in the long slot 21, and then the temperature protection device 18 is wrapped Cover with insulating tape 23, so that the temperature protection device 18 and the primary coil winding 19 can be separated. However, due to the heat insulation effect of the insulating tape 23 in this structure, it will be difficult for the temperature protection device 18 to sense the temperature of the transformer accurately and reliably, so it is easy to cause the temperature of the transformer to be too high and the temperature protection device 18 is caused by the insulating tape 23. The existence of such problems as not sensing the change of temperature in time, and thu...

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Abstract

A transformer skeleton, comprising a frame body, the frame body has a primary coil slot, a secondary coil slot and an iron core hole, the front end of the frame body is provided with a contact plate, and the rear end is provided with an outlet terminal, and it is characterized in that: On the bottom of the side of the primary coil slot close to the contact plate, there is a slope-shaped boss that can smoothly transition to the bottom of the primary coil slot. There is a slot for placing a temperature protection device under the boss, and on the boss A hole communicating with the slot is provided on the side corresponding to the position of the slot; on the frame body, there is also a slot for guiding each winding end to pass through. The boss provided by the present invention can ensure that the temperature protection device directly contacts the inside of the coil, and the temperature induction is accurate and reliable. , standardized and flat, will not produce short circuit phenomenon, ensures the safety distance required by national safety standards, and does not require additional parts and processes to complete, saving processing costs.

Description

technical field [0001] The invention relates to a transformer skeleton, more specifically, to a transformer skeleton capable of providing accurate and reliable temperature protection. Background technique [0002] The temperature protection device of the transformer is an important part of the transformer assembly. It must penetrate deep inside the coil in order to accurately sense changes in winding temperature in order to transmit induction signals and achieve temperature control. The temperature protection device on the traditional transformer skeleton is placed in the production process after winding. It places the temperature protection device in the primary coil slot of the transformer skeleton, and then covers the temperature protection device with a certain thickness and length. Insulating tape to isolate the live outgoing legs of the temperature protection device from the windings. However, due to the heat insulation effect of the insulating tape, this structure w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/30
Inventor 吴亮洪
Owner 吴亮洪
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