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An epoxy resin dry-type transformer mold

A dry-type transformer and epoxy resin technology, applied in the field of transformers, can solve the problems of increasing mold cost, low mold utilization rate, mold management and inconvenience in use, etc.

Active Publication Date: 2018-12-25
SHANGHAI ZHIXIN INTELLIGENT ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the lack of general-purpose molds for dry-type transformers not only causes low utilization rates of each mold, but also greatly increases the cost of molds in production, and also brings a lot of inconvenience to the management and use of molds

Method used

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  • An epoxy resin dry-type transformer mold
  • An epoxy resin dry-type transformer mold
  • An epoxy resin dry-type transformer mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see Figure 1A , Figure 1B as well as figure 2, the present invention provides an epoxy resin dry-type transformer mold, including a high-voltage mold 10, and the high-voltage mold 10 includes an outer mold 110, an inner mold 120, a cross press frame 130, a bottom plate 140, and a support plate for adjusting the height of the coil 150, the outer mold 110 is sleeved outside the inner mold 120, a cavity is formed between the outer mold 120 and the inner mold 110, the transverse section of the cavity is circular, the outer mold 110 and the inner mold 110 The lower end of the inner mold 120 is connected to the bottom plate 140, the cross press frame 130 is arranged on the upper end of the outer mold 110 and connected to the bottom plate 140 through a screw, and the support plate 150 is arranged between the outer mold 110 and the inner mold 110. Between the molds 120 is used to seal the upper end of the cavity, and the support plate 150 can slide up and down along the cav...

Embodiment 2

[0050] see Figure 3A , Figure 3B as well as Figure 4 , the present invention provides an epoxy resin dry-type transformer mold, including a low-voltage mold 20, the low-voltage mold 20 includes a cylinder 210, the cross-section of the cylinder 210 is oval with one end cut off, the cylinder One end of the cylinder 210 is provided with a baffle 220 that can move up and down along the cylinder 210 , and the baffle 220 is sleeved on the outer surface of the cylinder 210 .

[0051] Since the low-voltage molds 20 of SCB12 and SCB13 type epoxy resin dry-type transformers are only different in height under the same voltage level, so in this embodiment, when the baffle 220 is located on the cylinder 210 At the edge, it corresponds to the coil height of the low-voltage mold 20 of the SCB13-type epoxy resin dry-type transformer. When the baffle 220 slides down the preset distance along the barrel 210, it can become the low-voltage mold 20 of the SCB12 type dry-type transformer, whe...

Embodiment 3

[0064] An epoxy resin dry-type transformer mold combination includes a high-voltage mold 10 and a low-voltage mold 20 . The epoxy resin dry-type transformer mold includes the high-voltage mold 10 as described in Embodiment 1 and the low-voltage mold 20 as described in Embodiment 2. After the low-voltage coil is wound, the low-voltage mold 20 is taken out, after the high-voltage coil is wound, epoxy resin is poured, and the high-voltage mold 10 is taken out after the casting, so as to form an epoxy resin dry-type transformer.

[0065] In this embodiment, the epoxy resin dry-type transformer mold is applicable to both SCB12 and SCB13 type epoxy resin dry-type transformers.

[0066] In this embodiment, the epoxy resin dry-type transformer mold includes a high-voltage mold 10 and a low-voltage mold 20. The high-voltage mold 10 adjusts the height of the coil through the support plate 150, and the low-voltage mold 20 can adjust the height of the coil through the baffle 220. At the s...

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Abstract

The invention provides an epoxy resin dry-type transformer mold, which comprises a high-voltage mold and a low-voltage mold. The high-voltage mold comprises an outer mold, an inner mold, a cross pressframe and a support plate for adjusting the height of the coil; the outer mold is arranged outside the inner mold in a sleeving manner, the lower ends of the outer mold and the inner mold are connected with the bottom plate, the cross press frame is mounted on the upper end of the outer mold and connected with the bottom plate through a screw, the support plate extends from the top edge of the inner mold to the top edge of the outer mold, and the coil height of the high-voltage mold can be adjusted through the support plate. The low-voltage mold comprises a cylinder body and a baffle plate which can move up and down the cylinder body and is arranged at one end of the cylinder body, and the height of the coil of the low-voltage mold can be adjusted by the baffle plate. As a result, a set of molds in the invention is applicable to both SCB12 and SCB13 type epoxy resin dry-type transformers.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to an epoxy resin dry-type transformer mold. Background technique [0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main components include primary coils, secondary coils and iron cores (magnetic cores). A transformer is a device that uses electromagnetic mutual induction to transform voltage, current and impedance. Transformers are the main components of various power supplies and electrical equipment. Transformers can be divided into dry-type transformers and oil-immersed transformers according to cooling methods. [0003] Epoxy resin dry-type transformers use epoxy resin as the insulating material. The high-voltage and low-voltage windings are wound with copper wire or copper strip (foil), and epoxy resin is poured and cured in a vacuum to form a high-strength FRP body structure. The insulation grades are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/098
CPCH01F41/098
Inventor 杨庆福张晓同顾小虎
Owner SHANGHAI ZHIXIN INTELLIGENT ELECTRIC CO LTD
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